Dissertations / Theses: '4630j'

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Arzt, Markus. "Approche des phénomènes cycliques par la méthode à grand incrément de temps." Cachan, Ecole normale supérieure, 1994. http://www.theses.fr/1994DENS0014.

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Ce travail est l'application d'un algorithme à grand incrément de temps pour l'analyse de problèmes d'évolution en temps. Contrairement aux méthodes classiques basées sur le schéma pas à pas, l'ensemble du chargement est étudié en un seul grand incrément. Il s'agit d'une analyse non linéaire de structures soumises à un chargement cyclique. La relation de comportement viscoplastique du matériau est décrite par variables internes. Une formulation standard et normale permet de définir des directions de recherche à partir de l'operateur tangent afin de réduire le nombre d'itérations de la méthode. Une technique utilisant deux échelles de temps est développée pour diminuer les calculs numériques des simulations. Une comparaison des résultats obtenus par un calcul classique est effectuée dans le cas d'un problème simple. Les résultats pour une structure comportant de l'ordre de 3000 degrés de liberté soumise à un chargement de 1000 cycles sont également présentés

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Francescato, Pascal. "Prévision du comportement plastique des matériaux hétérogènes à constituants métalliques : application aux composites à matrice métallique à fibres continues et aux plaques perforées." Université Joseph Fourier (Grenoble), 1994. http://www.theses.fr/1994GRE10110.

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Ce travail de these porte sur la mise en uvre numerique de la methode d'homogeneisation periodique en calcul a la rupture ou analyse limite et son application a la prevision des proprietes de resistance macroscopiques de materiaux composites a fibres longues ou de plaques metalliques perforees. La methode numerique adoptee consiste a ramener la mise en uvre des approches statique par l'interieur et cinematique par l'exterieur a la resolution d'un probleme d'optimisation lineaire pose sur le volume elementaire representatif (v. E. R. ). Les programmes numeriques font appel a une utilisation originale de la methode des elements finis avec une discretisation discontinue des differents v. E. R. Etudies ainsi qu'a une technique nouvelle de linearisation des criteres de tresca et von mises. Une premiere validation de ces methodes est faite a partir de resultats theoriques et experimentaux obtenus par ailleurs, de meme qu'une campagne experimentale est menee sur des plaques minces perforees par des trous circulaires. Ces methodes donnent une evaluation tres precise de l'anisotropie de resistance de ce type de materiau. Dans la suite, une extension de ces methodes au cas de la deformation plane generalisee et au cas general tridimensionnel est proposee afin d'etudier le comportement plastique de composites a matrice metallique (c. M. M. ). Les maillages elements finis restant plans du fait du cas des fibres continues unidirectionnelles considere ici, l'objectif est de determiner le convexe de resistance de c. M. M. Unidirectionnels sous un chargement hors axes quelconque. Dans le cas d'une interface fibre/matrice a adherence maximale, les calculs mettent clairement en evidence l'anisotropie transverse de ce type de composite, y compris dans le cas d'un v. E. R. Hexagonal. Enfin l'etude se termine par une serie de calculs prenant en compte un critere de decohesion a l'interface fibre/matrice alors que la fibre et la matrice obeissent au critere de tresca tridimensionnel isotrope. Les parametres caracteristiques du critere a l'interface sont identifies a partir d'un essai de traction simple transversalement aux fibres

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Alshdiefat, A. S. "Developing an assessment model for the adoption of building information modelling to reduce the cost of change orders in the Jordanian construction industry." Thesis, University of Salford, 2018. http://usir.salford.ac.uk/46303/.

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The cost of change orders is a major challenge facing the Jordanian construction industry. Change orders can be defined as modifications to the contract documents through adding, modifying or deducting something in the original agreement. Change orders might be a change in the work, a change in the quality of the work or in the construction schedule, or other forms of change that affect the nature of the project. Many studies have examined the causes of change orders, and a variety of solutions have been proposed as a way of minimising their effects, yet the cost of change orders continues to increase. However, the potential of the use of Building Information Modelling (BIM) as a tool which to minimise the cost of change orders has not been explored. In addition, there is an existing knowledge gap, in terms of current understanding of BIM across Jordanian construction industry, and key factors derive it. The literature review indicates that there has been a significant failure to use BIM in construction projects and that there is thus a considerable difference between the uptake of BIM in developed countries and what is going in Jordan. The aim of the current research is therefore to develop a model for assessing the adoption of Building Information Modelling (BIM) by Jordanian construction organizations as a means of minimising the costs of change orders. To achieve this aim, a critical review of the literature on change orders and BIM was undertaken. This explored the causes of change orders and their impact, levels of awareness of BIM, the benefits of BIM, barriers to the adoption of BIM, and the effects of implementing BIM in terms of reducing the costs of change orders. The research took a positivist, realist, and value-free approach, and the researcher thus used mixed methods, combining semi-structured interviews and a questionnaire to collect the data required. In the first stage, 17 experts participated in semi-structured interviews as a means of investigating the major causes of change orders, as well as levels of awareness of BIM and its benefits, and of factors which both restricted and drove its use in Jordan. The outcomes of the interviews provided the basis for the design of the questionnaire, and this was distributed across the Jordanian construction industry, resulting in 155 responses received. The questionnaire answers were analysed descriptively and statistically by the Severity Index, factor analysis and correlation tests. The causes of change orders in the Jordanian construction industry were further categorised into three main groups, namely client-related causes,engineering causes and causes arising from the circumstances of the project. Changes initiated by clients and design errors were found to be the major causes of change orders which are responsible for cost overruns. It was also found that there are significant shortcomings in levels of awareness and knowledge of BIM both among individuals and across the construction sector. Moreover, it was found that there are several barriers to the adoption of BIM in the Jordanian construction industry. These barriers are clustered in four main groups: financial, human, communication and project procurement. The main barriers to the use of BIM are the costs of BIM software and the cost of training. The research concluded that there is a significant positive relationship between the use of BIM and reductions in the cost of change orders in the Jordanian construction industry. This means that the costs of change orders will decrease significantly if BIM is used, and supports a case for using BIM as a means of reducing the costs of change orders in the Jordanian construction industry. Finally, House of Quality and ISM (Interpretive Structural Modelling) were used to validate this approach. In the first step of validation, House of Quality was used to investigate the relationship between the causes of change orders and the functions and features of BIM, which validated the positive effects of using BIM in terms of reducing the costs of change orders by minimizing the main causes of change orders. In the second step, the ISM model was used to build the final model of the factors which obstruct the adoption of BIM in the Jordanian construction industry. This model categorized seven levels of barriers to the adoption of BIM, with those at level seven being the main barriers. This showed that the costs of BIM software and training are the main barriers to the adoption of BIM in the Jordanian construction industry.

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Hassan, H. M. "Effects of pollution on marine crustaceans in Qatari waters : a baseline survey and a case study on genotoxicity indicators in an endemic shrimp." Thesis, University of Salford, 2018. http://usir.salford.ac.uk/46307/.

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In this thesis the baseline and seasonal variations of the trace metals (TM) (Arsenic (As), Cadmium (Cd), Cobalt (Co), Chromium (Cr), Copper (Cu), Iron (Fe), Manganese (Mn), Nickel (Ni), Lead (Pb), Vanadium (V) and Zinc (Zn). ethylmercury (CH₃Hg), organotins (OT) and polychlorinated biphenyls (PCBs) concentrations were investigated within the tissue of three selected marine organisms together with sediment and water. The first round of sampling was carried out in September, November and December 2014. Samples were then collected in May and June 2015, and finally in July 2016. The species used for the research are all indigenous to Qatari waters and included Portunus pelagicus, the blue swimming crab, a commercially important edible species, Balanus Amphitrite, the striped barnacle, an invasive species that arrived in Qatar on the hulls of merchant ships, and now part of the local fauna. This species is often used as bio-indicator of coastal pollutants. The final selected species is the endemic caridean shrimp, Palaemon khori which inhabits the Avicenna marina mangrove forest at Al-Khor, Qatar. The order of the heavy metal concentrations for the three species was Zn > Cu > As > Fe > Mn > Pb > Cr > Cd > Co > Ni > V for P. pelagicus, Zn > Fe > Cu > As > Cd > Mn > Ni > Cr > V > Pb > Co for B. Amphitrite and Zn ˃ Cu > Fe ˃ Mn > Ni ˃ Pb > As > Cr > Cd > Co > V for P. khori. Methylmercury was measured in all of the three species averaging 1.25μg/kg throughout. The three organotin monobutyltin (MBT), dibutyltin (DBT) and tributyltin (TBT) were detected in all three species. TBT levels were observed at 0.58ngSng^-1, 0.78ngSng^-1 and 1.91ngSng^-1 for P. segnis, B. Amphitrite and P. khori respectively. The results also revealed that concentrations of the contaminants within water samples were negligible, the majority being below detection limits. However, PCB congeners 2,2,3,5-Tetrachlorobiphenyl and 2,2,4,5,5-Pentachlorobiphenyl were detected in the tissue of P. pelagicus averaging 1.70 μg/kg for the former and 4.56 μg/kg for the latter. Results from the tissue of P. khori ranged from 1.5μg/kg - 2μg/kg and 4.28μg/kg – 5.21μg/kg respectively. Seasonal variation studies showed fluctuating degrees of variability among pollutants depending on the target species and the pollutant. The results showed an increase in some pollutant concentrations from the winter months through to the summer, while subsequently other pollutants revealed a decrease in concentrations. The direct effect of varying levels and combinations of pollutants (the maximum concentrations of trace metals, OT and MeHg found in the environment according to the literature, and a tenfold increase in those concentrations in an individual setting and in a combined setting) under laboratory controlled conditions on the endemic P. khori was assessed using classical (mortality) and genotoxicological (aneuploidy) endpoints, after 4 and 8 weeks of exposure. Our results showed that with regards to mortality on average the highest mortality was observed in shrimps exposed to TM at x10 of the maximum environmentally observed levels or TM in combination with other pollutants. The pollutant inducing the highest aneuploidy levels were trace metals and CH3Hg in combination with OT (both at x10 concentration). The data presented in this study represents the first ever estimated baseline for seasonal variations of contaminants, in both the marine environment and associated animal tissues from the coastal waters of Qatar. The data obtained from the genotoxic investigations are a fundamental part in establishing the first ever record for the karyotype of P. khori, while also providing a genotoxicological overview of the effect of these pollutants on the species at a genetic level.

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Kausar, M. "Distributed agile patterns : an approach to facilitate agile adoption in offshore software development." Thesis, University of Salford, 2018. http://usir.salford.ac.uk/46308/.

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Over a decade, companies have been using agile methods for the development of software. However with the increasing trends of offshore software development, companies are becoming more interested in using agile methods for such projects. While offshore development has several dynamic benefits such as cost reduction, flexibility, proximity to market, concentration on core processes and easy access to talent, they have introduced new challenges, such as trust, socio-cultural, communication and coordination, and knowledge transfer issues. These challenges not only affect the development process but also affect the applicability of agile practices in offshore development. As a consequence, companies have been modifying and adapting agile practices to overcome these challenges. However there has been little effort put to collect and document the common practices that have been used repeatedly to solve recurring problems in offshore development. Using the systematic literature review approach and applying customised search criteria based on the research questions, we identified and reviewed over 200 cases from literature. As part of this research we also conducted semi-structured interviews, in which we involved practicing professionals who were working with distributed teams. As a result, we identified and documented a number of solutions to address the common agile issues in software development, which we classified as distributed agile patterns. This research presents the challenges caused by offshore development, how they affect the applicability of agile practices in offshoring. We have then developed a catalogue containing the identified fifteen distributed agile patterns and have classified them into four categories. We have used a case study to explain how these patterns can be applied in offshore software development. To verify and validate our catalogue, we conducted a reflection workshop, in which we invited professionals to review and comment on the patterns. The participants engaged in reviewing the patterns and gave constructive feedback, which helped in improving the catalogue. Based on their feedback, the distributed agile patterns catalogue was finalised. The catalogue can help practitioners make a more informed decision while choosing agile for their offshore projects.

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Maclean, Kirsten. "ACT at work : feasibility study of an acceptance based intervention to promote mental health well-being and work engagement in mental health service staff." Thesis, University of Glasgow, 2013. http://theses.gla.ac.uk/4630/.

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Background: Acceptance and Commitment Therapy (ACT) aids individuals to accept difficult experiences that may be beyond their control and commit to behaviour that is consistent with their values. Previous research highlights that ACT interventions can: improve mental health, reduce worker stress and engender effective learning and performance. Work engagement has been defined as having an energetic and effective connection to work activity. As yet, no studies have investigated whether ACT interventions lead to improvements in work engagement. Aim: To investigate the feasibility of using ACT at Work Training (ACTw) to improve mental well-being and foster work engagement in staff working in mental health services. Method: A prospective, non-randomised, cohort controlled, repeated measures design was utilised. The parameters of this feasibility trial were formulated around the PICO (population, intervention, control, outcome) framework. 25 staff were recruited to take part in ACTw. 20 staff were recruited separately to a control group. The control group did not receive any input. ACTw was implemented over three sessions. The Utrecht Work Engagement Scale, General Health Questionnaire, Michigan Job Satisfaction Scale and Hospital Anxiety and Depression Scale were administered as outcome measures, while the Acceptance and Action Questionnaire - measuring psychological flexibility - and the Valuing Questionnaire - measuring value based living - were administered as therapy-specific measures. Following the completion of baseline assessments, measures were conducted 6 and 10 weeks post-baseline. Results: Despite initial recruitment problems, ACTw and control group participants were successfully recruited. Positive feedback from those who completed ACTw, suggested the intervention was acceptable. However, a third of ACTw participants missed training sessions, which was related to work and personal stress factors. The lack of significant differences between ACTw and control participants’ in scores on outcome and therapy-specific measures across the time points does not provide support for treatment signal changes in these measures. However, the lack of significant differences in outcome measures may be due to the low number of individuals presenting with high stress and low work engagement levels. For the group as a whole, changes in stress, anxiety, depression and work engagement were significantly correlated with changes in therapy-specific measures i.e. measures of psychological flexibility and value based living. Conclusions: Results of this study highlight factors that will help inform a larger trial of ACTw for health professional staff. Suggestions for future implementation include considering a larger sample and catchment area, staff stress level, potential barriers to participation and implementation of change at an organisation level.

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di, Capua Danilo <1981&gt. "Tra società informazionale e prosumerismo: il citizen journalism e la partecipazione on line." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amsdottorato.unibo.it/4630/.

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I temi della ricerca riguardano il rapporto fra avvento del web e la modificazione dei processi di formazione di identità personale e sociale, della percezione dello spazio e del tempo, del prosumerismo digitale e delle varie forme di partecipazione ed associazione. Centrale è stata l’analisi del rapporto fra il Web 2.0 e la trasformazione delle forme di comunicazione a vari livelli, sia personali che sociali. Partendo da una analisi dei contesti socio-economici globali che hanno trasformato la società moderna nella società informazionale, è stato impostato un percorso di ricerca che approfondisse gli attuali criteri di strutturazione della propria identità, alla luce dell’avvento dei social network e delle reti virtuali di comunicazione come strumento preferenziale di socializzazione. La realtà delle reti sociali è stata analizzata in un’ottica di aggregazione spontanea mirata tanto alla comunicazione quanto alla tutela dei consumatori, e le trasformazioni portate dal Web 2.0 sono state la chiave di lettura per ridefinire i parametri della partecipazione dal basso generata dalla rete. Per comprendere la portata di tali trasformazioni nel contesto italiano è stato impostato un paragone tra l’uso del web negli Stati Uniti e in Italia, avendo le recente campagne elettorali dimostrato l’importanza del web nella partecipazione politica bottom-up; il percorso di ricerca ha dunque affrontato una comparazione di due casi, quello italiano e quello statunitense, finalizzato a comprendere l’attuale ruolo dell’utente nelle dinamiche di comunicazione mediatica. Per focalizzare al meglio le trasformazioni sociali generate dalla partecipazione on line è stato infine analizzato il caso del citizen journalism, per misurare, attraverso la metodologia dell’etnografia digitale, l’entità delle trasformazioni in corso. Il portale di giornalismo partecipativo YouReporter è stato il contesto privilegiato dove poter verificare le ipotesi iniziali circa le dinamiche di partecipazione, e il supporto di programmi di elaborazione statistica netnografica ha permesso di destrutturare al meglio tali dinamiche.
The subjects of the research concern the relationship between the growth of the web and the modification of the molding of personal and social identity, the perception of space and time, the digital prosumerism and the various patterns of participation and association. The project delves into the relationship between the Web 2.0 and the transformation of communication at various levels, both personal and social.The project focuses on the steps of the identity growth process, through the social network society, analyzing the social and economical contests that brought modern society to evolve into information society. Social networks have been studied as instruments for both socialization and consumerism, and as contest where to grow a new trend of popular participation. In order to clarify the subject and circumscribe the hypothesis of the research, the project structures a comparison between the use of the web in USA and Italy, with the purpose of understanding the current role of the web user in mass communication. In the research it was important to study the citizen journalism phenomenon in order to verify the hypotheses, through the methodology of digital ethnography, focusing on YouReporter website. Various programs of statistical elaboration supported the study of the “web galaxy”, analyzing the contest and destructuring the Web 2.0 reality.

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Kingslake, Jonathan. "Modelling ice-dammed lake drainage." Thesis, University of Sheffield, 2013. http://etheses.whiterose.ac.uk/4630/.

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The drainage of ice-dammed lakes produces floods that can pose hazards, waste water resources and modulate ice flow. In this thesis I investigate several aspects of ice-dammed lake drainage through the development and analysis of mathematical models. After an introduction in the first chapter and a description of the mathematical background to the thesis in the second, the third chapter investigates the mechanisms behind observed variability in the size and timing of subglacial floods from ice-dammed lakes. In particular, I examine how environmental controls like the weather and the shape of glaciers affect floods. In the next chapter, I quantify how well simple models can predict the dates of floods from an ice-marginal lake in Kyrgyzstan. I find that incorporating environmental controls into models improves their prediction ability. Next I investigate the coupling between subglacial drainage and glacier motion during ice-dammed lake drainage by developing and analysing a model which couples a marginal lake, glacier sliding, subglacial drainage through a channel and subglacial drainage through a distributed system of cavities. I show how changes in lake level cause the rate at which a glacier slides to increase during the first half of floods and decrease during the second half. The next two chapters are concerned with two lake-drainage scenarios that involve water flowing as an open stream: firstly, the subglacial open-channel flow that occurs after a marginal lake drains completely during a flood, and secondly, the drainage of supraglacial lakes across the surface of ice sheets. I end the thesis with a summary of my findings and some suggestions of theoretical and field-based investigations that are worthwhile pursing in the future.

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Smith, Evan Mathew. "Fluid inclusions in fibrous and octahedrally-grown diamonds." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/46301.

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My thesis puts forth new models for diamond formation that explain the difference between octahedral and fibrous diamond growth, as well as the difference between octahedral diamond growth in the lithospheric and the sublithospheric mantle. Diamond growth in the mantle involves reactions between carbon-bearing fluid and the host rocks it infiltrates. This fluid is sometimes included in diamond. Fluids in dendritically-grown, fibrous diamonds from Wawa, Superior craton, were analysed in a novel way, using transmission X-ray diffraction. The technique allows bulk analysis of daughter minerals within fluid inclusions. The mineralogy, major and trace elements, Sr isotopes, volatiles, and nitrogen characteristics of the hydrous saline???high-Mg carbonatitic fluid in these Archean diamonds strongly resemble those of Phanerozoic fibrous diamonds. This implies that some mantle processes, including the formation of fibrous diamonds, can be extended unvaryingly back to 2.7 Ga. Fluid equilibrated with octahedrally-grown diamonds from the Siberian, Kaapvaal, and Congo cratons is trapped in healed fractures in the diamonds. They contain anhydrous CO??????N??? fluid inclusions with 40??4 mol% N??? and inclusions of former silicate melt that had an original N??? content of ~0.1 wt%, as shown by Raman, electron microprobe, and microthermometry analyses. The liberation of N??? from the convecting mantle is proposed to be controlled by increasing oxygen fugacity that destabilizes host phases. The observed distinct fluid compositions between hydrous fluids in fibrous and anhydrous fluids in octahedrally-grown diamond entail distinct processes of diamond formation that, ultimately, govern the growth habit. Water may trigger fibrous growth by inhibiting the expansion of {111} layers and lowering the interfacial energy between the diamond and fluid. Certain features in diamond fluids, such as Eu anomalies and potential carbonate???CO??? isotopic fractionation, show that several mantle processes can produce geochemical signatures that may be mistaken as input from subducted materials. The finding of N??? in diamond-forming fluids leads to an explanation for the characteristically low N content of sublithospheric diamonds. I propose this compositional trait is due to growth in a metal-saturated environment. Metallic Fe in the mantle below ~250 km should trap N and may be the largest mantle N reservoir.

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Bluemel, Britt. "Biogeochemical expressions of buried REE mineralization at the Norra K??rr Alkaline Complex, southern Sweden." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/46300.

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Biogeochemical exploration is an effective but underutilized method for delineating covered mineralization. Plants are capable of accumulating rare earth elements (REEs) in their tissue, and ferns (pteridophytes) are especially adept because they are one of the most primitive land plants, therefore lack the barrier mechanisms developed by more evolved plants. The Norra K??rr Alkaline Complex, located in southern Sweden approximately 300km southwest of Stockholm, is a peralkaline nepheline syenite enriched in heavy rare earth elements (HREEs). The deposit, roughly 300m wide, 1300m long, and overlain by up to 4 m of Quaternary sediments, has been well-defined by diamond drilling. The inferred REE mineral resource, over 60 million tonnes averaging 0.54% Total Rare Earth Oxide (TREO), is dominantly hosted within the pegmatitic ???grennaite??? unit, a eudialyte-catapleiite-aegerine nepheline syenite. Vegetation and soil samples were collected from the surficial environment above Norra K??rr to address four key questions: which plant species is the most effective biogeochemical exploration medium; what are the annual and seasonal REE variations in that plant; how do the REEs move through the soil profile; and into which part of the plant are they concentrated. Athyrium filix-femina (lady fern) has the highest concentration of LREEs and HREEs (up to 125.17ppm Ce and 1.03ppm Dy) in its dry leaves; however, there is better contrast between background and anomalous areas in Dryopteris filix-mas (wood fern), which makes it the preferred biogeochemical sampling medium. The REE content in all fern species was shown to decrease from root > frond > stem, and chondrite normalized REE patterns within the plant displayed preferential fractionation of the LREEs in the fronds relative to the roots. Samples collected from an area directly overlying the deposit had up to five times greater HREE content (0.74ppm Dy) in August than the same plants did in June (0.14ppm Dy). The elevated REE content and distinct contrast to background demonstrate that biogeochemical sampling is an effective method for REE exploration in this environment.

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Bosque, Irene. "Synthetic applications of chiral homoallylic sulfinamines." Doctoral thesis, Universidad de Alicante, 2014. http://hdl.handle.net/10045/46307.

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Cerveira, Nuno Manuel Botelho Gonçalves Samapio. "Structural and expression changes of septins in myeloid neoplasia." Tese, Instituto de Ciências Biomédicas Abel Salazar, 2009. http://hdl.handle.net/10216/46300.

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Oliveira, Flávio Augusto Cella de. "Aprendizagem organizacional em práticas de sustentabilidade à luz da teoria da racionalidade." reponame:Repositório Institucional da UFPR, 2016. http://hdl.handle.net/1884/46307.

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Orientador : Profª Drª Adriana Roseli Wünsch Takahashi
Tese (doutorado) - Universidade Federal do Paraná, Setor de Ciências Sociais Aplicadas, Programa de Pós-Graduação em Administração. Defesa: Curitiba, 02/09/2016
Inclui referências : f. 212-235
Área de concentração: Estratégia e organizações
Resumo: A presente pesquisa envolve as seguintes categorias: a) aprendizagem organizacional; b) práticas de sustentabilidade; c) racionalidade. A partir do exposto é apresentado um modelo que evidencia a relação das categorias abordadas, o qual entende a racionalidade como um fenômeno que orienta o desenvolvimento das práticas de sustentabilidade organizacional e é suportado pelo processo de aprendizagem. O objetivo geral da pesquisa foi "analisar como ocorreu o processo de aprendizagem das práticas de sustentabilidade organizacional, a partir das racionalidades substantiva e instrumental, na Fundação Parque Tecnológico Itaipu - Brasil - PTI-BR". A metodologia adotada foi qualitativa, exploratória e descritiva, transversal e com aproximação longitudinal. Foi realizado um estudo de caso na Fundação Parque Tecnológico Itaipu - Brasil - FPTI-BR, que é uma organização sem fins lucrativos, e tem o objetivo de desenvolver pesquisas que resultem no desenvolvimento da região, gerando conhecimentos e inovação, que são fomentados com a intenção de gerar riqueza, equidade e inclusão social. Foram coletados dados por meio de documentos, vídeo, observação não participante e entrevistas. Após submeter tais dados à análise de conteúdo, identificou-se que a racionalidade identificada como predominante na organização foi a substantiva, devendo-se a valores existentes desde a sua criação. Foi observada uma série de práticas de sustentabilidade: educativas, desenvolvimento tecnológico ambiental, pesquisa, desenvolvimento territorial, apoio ao empreendedor e incentivo ao turismo. Identificou-se que estas práticas são relativas aos três pilares da sustentabilidade, sendo as mais frequentes em relação aos pilares social, ambiental e menos em relação ao pilar econômico. Em relação ao sistema classificatório de conhecimento de Patriotta (2003a), o conhecimento relativo às práticas ligadas ao pilar social e ambiental estão em nível experiencial, e as práticas relativas ao pilar econômico estão entre fundamental e procedimental. A racionalidade substantiva foi predominante, sendo identificados poucos elementos em relação a instrumental. O processo de aprendizagem das práticas de sustentabilidade social e ambiental, norteadas pela racionalidade substantiva dominante, foi organizacional, enquanto a aprendizagem de práticas de sustentabilidade econômica, norteadas pela racionalidade instrumental, que é menos dominante em nível individual. Por fim, confirmou-se que a racionalidade predominante orienta o desenvolvimento das práticas analisadas. PALAVRAS CHAVE: Aprendizagem organizacional, Sustentabilidade organizacional, Práticas, Racionalidade.
Abstract: This research involves the following categories: a) organizational learning; b) sustainability practices; c) rationality. From the foregoing presents a model that shows the list of covered categories, which understands rationality as a phenomenon that guides the learning process and the development of organizational sustainability practices. The overall objective was to "analyze how the prevailing rationality guides the learning process of organizational sustainability practices." The methodology was qualitative, exploratory and descriptive, cross with longitudinal approach. a case study was conducted in a Itaipu-Brazil Technological Park Foundation - FPTI-BR, which is a non-profit organization with the aim of developing research that result in the development of the region, generating knowledge and innovation, which are promoted with the intention of generating wealth, equity and social inclusion. Data were collected through documents, video, non-participant observation and interviews. After submitting such data to content analysis, it was identified that rationality identified as predominant in the organization was substantive, should be the existing values since its conception. A number of sustainability practices were observed: educational practices, research, staff development, regional development, and to encourage tourism. It identified a number of practices related to the three pillars of sustainability, being the most frequent in relation to social, environmental and economic, respectively. Regarding the classification system of knowledge Patriotta (2003a), knowledge concerning those linked to social pillar and environmental practices are in experiential level, and practices related to the economic pillar are among fundamental and procedural. The substantive rationality was predominant, with few elements identified in relation to instrumental. Finally, it became clear that the prevailing rationality guides the development of practices. KEY WORDS: Organizational learning, organizational sustainability, Practices, Rationality.

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Mazutti, Kelly. "Estratégias para melhorar o desempenho de leitões desmamados." reponame:Repositório Institucional da UFPR, 2017. http://hdl.handle.net/1884/46309.

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Orientador : Prof. Dr. Alex Maiorka
Coorientador : Prof. Dr. Everton Luís Krabbe
Tese (doutorado) - Universidade Federal do Paraná, Setor de Ciências Agrárias, Programa de Pós-Graduação em Ciências Veterinárias. Defesa: Curitiba, 23/02/2017
Inclui referências : f. 59-83;103-109;120-124;142-145;164-169;172-208
Área de concentração: Ciências Veterinárias
Resumo: O desmame de suínos nas condições comerciais modernas causa estresse (ambiental, nutricional, psicológico/social) e está associado com alterações marcantes na fisiologia, microbiologia e imunologia do trato gastrointestinal, sendo um período geralmente caracterizado por crescimento abaixo do ideal, eficiência alimentar prejudicada, elevada incidência de perturbações intestinais e mortalidade elevada. Dessa forma, o objetivo desta tese foi avaliar o uso de estratégias para melhorar o desempenho de leitões desmamados, abordando o uso de antibióticos promotores do crescimento (APC), bem como o processamento e forma física da dieta como alternativa ao seu uso. Para isso, a tese foi dividida em cinco capítulos. O capítulo 1 abrange uma revisão de literatura sobre o uso de APC e sobre o processamento da dieta para leitões desmamados. No capítulo 2 foi demonstrado que a colistina e tilosina, utilizados como APC para leitões desmamados, aumentaram significativamente o consumo de ração, resultando em maior peso corporal, além de promoverem redução significativa na incidência de diarreia e modularem a resposta imune. No capítulo 3 foi avaliado o uso da lincomicina como APC para leitões desmamados, a qual promoveu redução na incidência de diarreia dos leitões, mas não apresentou efeito sobre os parâmetros de desempenho avaliados. No capítulo 4 foi avaliada a influência de diferentes tipos de processamento e forma física da ração sobre o desempenho de leitões desmamados e sobre a digestibilidade da dieta. Não foram observados efeitos do processamento e forma física da ração sobre o ganho de peso e consumo de ração em leitões desmamados, mas verificou-se que a peletização a 2,5 mm proporcionou melhor conversão alimentar em comparação às dietas farelada e farelada condicionada, o que pode ser atribuído ao maior coeficiente de digestibilidade do extrato etéreo das dietas peletizadas. Não foi observado efeito do tamanho do pelete sobre os parâmetros de desempenho avaliados. No capítulo 5 foi avaliado o efeito de diferentes formas de processamento e forma física da dieta sobre a preferência alimentar de leitões desmamados e verificou-se que os mesmos influenciam a preferência alimentar dos animais. Leitões desmamados preferem dietas submetidas a algum tipo de processamento em comparação à dieta farelada simples, bem como preferem dietas peletizadas à fareladas, peletes de 2,5 mm em comparação à peletes de 4,75 mm (intactos ou triturados), e peletes de 4,75 mm triturados em comparação à peletes de 4,75 mm intactos, demonstrando que dietas processadas termicamente são mais palatáveis. No entanto, a preferência pela dieta peletizada não se refletiu em maior consumo da mesma em relação à farelada, provavelmente por fatores pós ingestivos, como mecanismos de retroalimentação. Estes resultados demonstram que o processamento térmico pode tornar a dieta mais atrativa e aumentar a digestibilidade de alguns nutrientes, o que pode reduzir o período de jejum pós-desmame e auxiliar na manutenção da função intestinal, podendo ser uma alternativa ao uso dos APC. Palavras-chave: Aditivos. Desmame. Peletização. Resistência bacteriana. Suínos.
Abstract: Weaning pigs under modern commercial conditions causes stress (environmental, nutritional, psychological/social) and is associated with marked changes in physiology, microbiology and immunology of the gastrointestinal tract, being a period generally characterized by growth below ideal, impaired food efficiency, high incidence of intestinal disturbances and high mortality. Thus, the objective of this thesis was to evaluate the use of strategies to improve the performance of weaned piglets, addressing the use of antibiotic growth promoters (AGP), as well as the processing and physical form of the diet as an alternative to its use. For this, the thesis was divided into five chapters. Chapter 1 covers a literature review on the use of AGP and on diet processing for weaned piglets. In Chapter 2, it was demonstrated that colistin and tylosin, used as AGP for weaned piglets, significantly increased feed intake, resulting in a higher body weight, besides promoting a significant reduction in diarrhea incidence and modulation in the immune system. In Chapter 3, the use of lincomycin as an AGP for weaned piglets was evaluated, and this antibiotic promoted a reduction in the diarrhea incidence, but did not show any effect on the performance parameters evaluated. In Chapter 4 the influence of different types of processing and physical form of the diet on weaned piglets performance and on the diet digestibility, were evaluated. No effects of processing and physical form of the diet on weight gain and feed intake were observed in weaned piglets, but it was found that 2.5 mm pelleting resulted in better feed conversion compared to the mash and conditioned mash diets, which can be attributed to the higher digestibility coefficient of the ethereal extract of the pelleted diets. No effect of the pellet size was observed on the evaluated performance parameters. In Chapter 5 the effect of different forms of processing and physical form of the diet on the feeding preference of weanling piglets were evaluated, and it was verified that they influence the animals feeding preference. Weaned piglets prefer diets subjected to some sort of processing compared to simple mash diets, as well as prefer pelleted diets to mash diets, 2.5 mm pellets compared to 4.75 mm pellets (intact or crumbled), and crumbled pellets of 4.75 mm compared to intact pellets of 4.75 mm, demonstrating that thermally processed diets are more palatable. However, the preference for the pelleted diet was not reflected in the higher intake of the same in relation to the meal diet, probably by post ingestive factors, as feedback mechanisms. These results demonstrate that thermal processing may make the diet more attractive and increase the digestibility of some nutrients, which may reduce the postweaning fasting period and help maintain intestinal function, and may be an alternative to AGP use. Key-words: Additives. Bacterial resistance. Pelletizing. Swine. Weaning.

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Lima, Vivian Lie Kato de. "Agricultura familiar e o programa de aquisição de alimentos : um estudo de caso no Vale do Ribeira." reponame:Repositório Institucional da UFPR, 2017. http://hdl.handle.net/1884/46303.

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Orientador : Prof. Dr. Nilson Maciel de Paula
Tese (doutorado) - Universidade Federal do Paraná, Setor de Ciencias Sociais Aplicadas, Programa de Pós-Graduação em Políticas Públicas. Defesa : 11/02/2017
Inclui referências : f. 110-117
Área de concentração
Resumo: O projeto de modernização conservadora da agricultura brasileira implementado nos anos de 1970 negligenciou a importância dos agricultores familiares ao dar prioridade à produção de larga escala. Somente a partir dos anos de 1990, principalmente em decorrência de lutas e pressões de movimentos sociais e de mudanças institucionais, a agricultura familiar passou a estar mais presente nas preocupações do Estado por meio de diversas políticas públicas diferenciadas para a categoria como alternativa para um desenvolvimento social e economicamente inclusivo e sustentável. Nesse novo contexto, uma das políticas criadas, com grande repercussão no meio rural, é o Programa de Aquisição de Alimentos (PAA), voltado para a comercialização institucional dos produtos vindos da produção agrícola familiar. Entre seus principais resultados documentados na literatura destacam-se o aumento da renda dos beneficiários, combate à fome, garantia do comércio da produção familiar, dinamização do mercado local, valorização da cultura alimentar e redução da migração rural-urbana. Diante disso, o presente trabalho consiste em um estudo de caso por meio do qual são analisados os principais resultados da implementação do PAA no Vale do Ribeira paulista, durante os anos de 2010 a 2016, em relação às dimensões da renda, habitação, produção, segurança alimentar, grau de organização política e migração/permanência populacional. A implementação do programa ali se dá na tentativa de promover o desenvolvimento de parte de sua população rural, uma vez que essa região é conhecida como "a região mais pobre" do estado de São Paulo devido aos seus baixos índices socioeconômicos. Por meio da pesquisa de campo foi possível demonstrar que, a partir da perspectiva dos entrevistados, o PAA proporcionou benefícios para os agricultores familiares participantes do programa na região nas dimensões pesquisadas. Dificuldades e entraves para sua operacionalização, relacionadas às compras, prestação de contas, fixação de preços e obtenção da DAP, são passíveis de solução por meio da adaptação do programa ao seu contexto local, sem comprometer o programa na região. Palavras-chave: Agricultura familiar. Programa de Aquisição de Alimentos (PAA). Vale do Ribeira.
Abstract: The conservative modernization project of Brazilian agriculture implemented in the 1970s neglected the importance of family farmers by giving priority to large-scale production. It was only from the 1990s, mainly due to pressures from social movements and institutional changes, family farming became more present in the State's concerns through different public policies aiming that social category as an alternative to promote socially and economically inclusive and sustainable development. In this new context, one of the policies created, with great repercussion in the rural environment in Brazil, is the Food Acquisition Program (PAA), aimed at the institutional marketing of products supplied by family farms. Among its main results documented in the literature are the increase in the income of beneficiaries, fight against hunger, guarantee of market for family farmers, local market dynamism, local food culture and reduction of rural-urban migration. Therefore, the present study consists of a case study through which we analyze the main results of the implementation of the PAA in the Ribeira Valley of São Paulo, from 2010 to 2016, regarding the dimensions related to income, housing, production, food security, level of political organization and the degree of migration of local population. The program implementation there aims rural development, since this region is known as the "poorest region" of the state of São Paulo. Based on information collected through a field research, it was possible to demonstrate, from the perspective of the interviewees, that PAA provided benefits to family farmers participating in the program in the region. Difficulties and obstacles in its operationalization, related to purchases, accountability, price fixation, rigid requirements to obtain DAP, can be fixed by adapting the program to its local context, without compromising the program in the region. Key-words: Family farming. Food Acquisition Program (PAA). Vale do Ribeira.

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Cyganczuk, Marilyn de Souza. "Modelo de otimização para o problema de escalonamento dos motoristas de caminhão com base na regulamentação brasileira." reponame:Repositório Institucional da UFPR, 2017. http://hdl.handle.net/1884/46304.

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Orientador : Prof. Dr. José Eduardo Pécora Junior
Coorientador : Prof. Dr. Cassius Tadeu Scarpin
Tese (doutorado) - Universidade Federal do Paraná, Setor de Tecnologia, Programa de Pós-Graduação em Engenharia de Produção. Defesa: Curitiba, 23/02/2017
Inclui referências : f. 69-71
Área de concentração
Resumo: Considerando a grande quantidade de restrições devido à regulamentação da jornada de trabalho estabelecida pela Lei nº 13.103/2015, de 02 de março de 2015, as empresas e os profissionais de transporte de carga devem se adequar as novas regras e para isto devem criar escalas de trabalho que considerem estas restrições. Esta pesquisa tem como objetivo propor um modelo matemático para criar e atribuir escalas de serviço aos motoristas de caminhão respeitando as restrições trabalhistas e operacionais. Assim, este estudo se propõe a contribuir para as decisões no nível operacional da gestão da programação do transporte rodoviário de cargas, otimizando o percurso percorrido e determinando a minimização do tempo de viagem. O modelo proposto foi implementado computacionalmente e o software utilizado para a modelagem matemática foi o IBM ILOG CPLEX Optimization Studio 12.6. Os resultados obtidos nos testes realizados mostram que o modelo proposto reage adequadamente, tanto no que se refere aos locais de pernoite e refeição, como dos locais em que as paradas deverão ser realizadas. Os resultados obtidos indicam, ainda, que as soluções de mínimo tempo de condução para percorrer a rota podem ser encontradas com baixo tempo computacional, com 25 pontos a média de tempo de resolução foi de 0,37 segundos e para 200 pontos a média foi de aproximadamente 23 minutos. Palavras-chave: Escalonamento, motoristas de caminhão, Lei nº 13.103/15.
Abstract: Considering the great amount of restrictions due to the regulation of the working day established by Law nº 13.103/2015, of March 2, 2015, companies and professionals of load transportation must adapt the new rules and for this they must create scales of consider these restrictions. This research aims to propose a mathematical model to create and assign service scales to truck drivers respecting labor and operational restrictions. Thus, this study proposes to contribute to the decisions at the operational level of the management of road freight transport scheduling, optimizing the route traveled and determining the minimization of travel time. The proposed model was implemented computationally and the software used for mathematical modeling was the IBM ILOG CPLEX Optimization Studio 12.6. The results obtained in the tests performed show that the proposed model reacts adequately, both for overnight and meal places, and for the places where the stops should be performed. The obtained results also indicate that the solutions of minimum driving time to travel the route can be found with low computational time, with 25 points the mean resolution time was 0.37 seconds and for 200 points the average was of approximately 23 minutes. KEYWORDS: Scheduling, truck drivers, Law nº 13.103/15.

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Mércher, Leonardo. "Paradiplomacia do Rio de Janeiro : variáveis explicativas à política externa de uma cidade." reponame:Repositório Institucional da UFPR, 2016. http://hdl.handle.net/1884/46306.

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Orientador: Prof. Dr. Alexsandro Eugênio Pereira
Tese (doutorado) - Universidade Federal do Paraná, Setor de Ciências Humanas, Programa de Pós-Graduação em Ciência Política. Defesa: Curitiba, 16/12/2016
Inclui referências : f. 283-293
Área de concentração
Resumo: A presente tese busca associar os estudos de política externa aos estudos de paradiplomacia para melhor compreender e explicar o caso da Cidade do Rio de Janeiro. Com isso, defende-se a análise da paradiplomacia como política pública e como política externa. Para responder à continuidade estratégica paradiplomática da Cidade do Rio, de 1993 até 2016, mesmo com alternância partidária, reuniram-se variáveis apontadas na literatura especializada que, por sua vez, foram agrupadas em cinco áreas: política; de mercado; institucional; internacional; e epistêmica. Esses cinco grupos de variáveis foram analisados por meio de diversos métodos, como análise documental e prosopografia, resultando em uma análise qualitativa dos dados. A transformação dos dados em informações resultou na percepção de que a análise de apenas um dos grupos de variáveis, como é comumente feita na literatura especializada, acaba por ocultar os processos decisórios. Os processos decisórios na Cidade do Rio de Janeiro, por sua vez, resultaram da interação entre perfil dos gestores, demanda dos mercados de cidades no Conselho da Cidade e modelos dados por agentes internacionais, como a CGLU, e epistêmicos, como o Grupo Barcelona e o CEBRI, adotados pela Coordenadoria de Relações Internacionais da Cidade. Observa-se, ainda, que a política externa da Cidade do Rio se manteve em continuidade no período analisado especialmente por existir um pacto de elites - da gestão política e do mercado - na formulação das políticas públicas locais. Palavras-chave: Paradiplomacia; Política Externa; Política Pública; Rio de Janeiro.

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Ramos, Sandra Martins. "Relação entre domínios geológicos e comunidades de macroinvertebrados bentônicos em ambientes lóticos." reponame:Repositório Institucional da UFPR, 2017. http://hdl.handle.net/1884/46300.

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Orientador : Ernani Francisco da Rosa Filho
Tese (doutorado) - Universidade Federal do Paraná, Setor de Ciências da Terra, Programa de Pós-Graduação em Geologia. Defesa: Curitiba, 17/02/2017
Inclui referências : f. 93-96;108-110
Área de concentração: Geologia ambiental
Resumo: Entender a relação entre o tipo de formação geológica e o quimismo de sedimento fluvial e a composição físico-química de água superficial, pode demonstrar quais os principais componentes iônicos e compostos químicos lixiviados, dissolvidos e concentrados no leito dos ambientes aquáticos e desta forma, relacioná-los a mineralogia e ao solo, de uma região. Isso permite indicar se tais concentrações são referentes às condições naturais ou se são valores anômalos, que podem estar relacionados a interferências antrópicas. Além disso, pode auxiliar na compreensão de padrões de distribuição da macrofauna bentônica, e desta forma, contribuir para a escolha de organismos que possam ser utilizados como bioindicadores de qualidade ambiental de microbacias hidrográficas, assentadas sobre formações geológicas distintas. Neste contexto, o objetivo do estudo foi identificar relações entre as características geoquímicas do sedimento de drenagem, características físicas e químicas de águas superficiais e composição da macrofauna bentônica em microbacias localizadas em domínios geológicos distintos. Os pontos de amostragem foram distribuídos em 3 diferentes áreas geológicas no Paraná: Primeiro Planalto Paranaense na Formação Capiru (predominância de rochas carbonáticas), Segundo Planalto Paranaense em formações paleozóicas onde ocorrem as Formações Irati (folhelho betuminoso, folhelho, siltito e calcário), Teresina (siltito com lentes de intercalação calcíferas e folhelho) e Itararé (arenito, siltito, e intercalação silto-arenosa) e Terceiro Planalto Paranaense, na Formação Serra Geral (que consiste principalmente de rochas basálticas). Foram selecionadas 5 microbacias em cada domínio geológico, totalizando 15 pontos amostrais, onde foram coletados os organismos bentônicos, amostras de água superficial e de sedimento fluvial. Os resultados obtidos permitiram a extrapolação dos métodos utilizados no Paraná, em avaliação de qualidade de água superficial na região oeste da Bahia, em domínio geológico cristalino. Como produto final da tese, foram gerados três artigos científicos. O primeiro versa sobre a influência da geologia local no quimismo das águas superficiais e sedimentos fluviais. Este artigo foi publicado na Revista Brasileira de Recursos Hídricos, volume 21, número 4, páginas 882-893, edição outubro/dezembro/2016. O segundo artigo agrega as informações inerentes às condições físico-químicas da água e do sedimento fluvial à estrutura e composição da macrofauna bentônica e deverá ser submetido a uma revista científica depois da incorporação das sugestões da banca, durante a defesa desta tese. E por fim, o terceiro artigo, que trata do uso da macrofauna bentônica em processos de licenciamento ambiental de obras lineares. Este artigo foi submetido a Revista Brasileira de Gestão Ambiental e está em fase de avaliação. O desenvolvimento do projeto e os resultados obtidos nos permitiu concluir que diante da grande diversidade geológica e biológica que ocorre no Brasil, o uso da macrofauna bentônica como bioindicadora de qualidade ecológica das águas superficiais, deve considerar as características geológicas e geomorfológicas que interferem diretamente na estrutura e composição desses organismos, sendo, portanto, necessária cautela no uso de índices biológicos para microbacias com características distintas. As informações sobre geologia, características físico-químicas de águas superficiais, do sedimento fluvial e composição da macrofauna bentônica em 15 microbacias hidrográficas no Estado do Paraná e uma, na região oeste da Bahia, configuram-se em dados inéditos para as regiões de estudo, que podem ser úteis em programas futuros de monitoramento e gestão de recursos hídricos. Palavras-chave: Geologia ambiental, águas superficiais, invertebrados bentônicos, bioindicadores.
Abstract: Understand the relationship between the type of geological formation and the river sediment chemism and surface water can demonstrate what are the main ionic components and chemicals leached dissolved and concentrated in the beds of aquatic environments and relate them to mineralogy and soil of a region. This allows indicate whether such concentrations are related to natural conditions or are anomalous values, which may be related to anthropogenic interference. Moreover, it can assist in the understanding of distribution patterns of benthic macroinvertebrates, and thus contribute to the choice of organisms that can be used as bio-indicators of environmental quality watersheds, settled on different geological formations. In this context the objective of the study is to test correlations between the geochemical characteristics of the drain sediment, physical and chemical characteristics of surface water and composition of benthic macroinvertebrates in watersheds located in different geological domains. Sampling points were distributed in three different geological areas in the state of Paraná: First Paraná Plateau of Capiru Formation (predominance of carbonate rocks), Second Paraná Plateau in Paleozoic Formation where there are formations Irati (bituminous shale, shale, siltstone and limestone), Teresina (siltstone with calciferous merge lenses and shale) and Itararé (sandstone, siltstone, and silt-sandy intercalation) and Third Paranaense Plateau in Serra Geral Formation (consisting mainly of basaltic rocks). 5 watersheds were selected in each geological domain, totaling 15 sampling points, which were collected benthic organisms, surface water and river sediment samples. The results obtained allowed the extrapolation of the methods used in Paraná in evaluation of surface water quality in the western region of Bahia, in a crystalline geological domain. As final product of the thesis, three scientific articles were generated. The first deals with the influence of local geology on the chemistry of surface waters and fluvial sediments. This paper was published in the Brazilian Journal of Water Resources, v. 21, n. 4, pages 882-893, in the October / December 2016 issue. The second article aggregates information on the physical and chemical conditions of water and sediment Structure and composition of the benthic macrofauna and should be submitted to a scientific journal after incorporating the suggestions of the bank, during the defense of this thesis. And finally, the third article that deals with the use of benthic macrofauna in environmental licensing processes of linear works. This article has been submitted to the Brazilian Journal of Environmental Management and is being evaluated. The development of the project and the results obtained allowed us to conclude that due to the great geological and biological diversity that occurs in Brazil, the use of benthic invertebrate as bioindicators of ecological quality of surface waters should consider geological and geomorphological characteristics, that directly interfere with the structure and composition of these organisms, and therefore, caution is needed in the use of biological indexes for catchments with different characteristics. The information on geology, physical-chemical characteristics of surface waters, fluvial sediment and composition of the benthic macrofauna in 15 catchments in the State of Paraná and one in the west region of Bahia, obtained during project execution, are set in inedited data for the study regions, which we hope will be useful in future monitoring and management of water resources. Keywords: Environmental geology, surface waters, benthic invertebrates, bioindicators.

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Castellano, Giovanna Carstens. "A atividade da anidrase carbônica em invertebrados de diferentes ambientes." reponame:Repositório Institucional da UFPR, 2017. http://hdl.handle.net/1884/46302.

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Orientador : Profª. Drª. Carolina Arruda de Oliveira Freire
Tese (doutorado) - Universidade Federal do Paraná, Setor de Ciências Biológicas, Programa de Pós-Graduação em Zoologia. Defesa: Curitiba, 21/02/2017
Inclui referências : f. 110-117
Area de concentração
Resumo: Todos os invertebrados evoluíram no ambiente marinho e, posteriormente, alguns conquistaram os ambientes dulcícola e terrestre. Cada ambiente apresenta diferentes características de fatores abióticos, como salinidade e/ou disponibilidade de água. Neste contexto, o objetivo deste trabalho foi o de relacionar respostas fisiológicas de invertebrados à ocupação de novos ambientes (dulcícola e terrestre). No capítulo 1, espécies marinhas, estuarinas e dulcícolas de invertebrados foram expostas a estresse salino, sendo, equinodermos (apenas marinhas), moluscos, e crustáceos. Posteriormente foram realizadas análises de concentrações osmótica e iônicas de seus fluidos corporais, e de teor hídrico e atividade da anidrase carbônica (AAC) de seus tecidos. No capítulo 2, quatro espécies de caranguejos da família Sesarmidae com diferentes graus de terrestrialidade, eurihalinidade e atividade motora foram avaliados quanto à osmolalidade da hemolinfa e à atividade da anidrase carbônica das brânquias anteriores e posteriores. No capítulo 3, três espécies de poliquetas de diferentes ambientes foram estudados. A osmolalidade e a AAC constitutivas foram analisadas, e a capacidade de regulação de volume celular foi testada diante de choques osmóticos de 50% de intensidade com relação ao controle isosmótico. Nestes capítulos, buscou-se relacionar mecanismos fisiológicos (principalmente AAC) à conquista dos ambientes diluídos e terrestre. Resumidamente, os resultados demonstraram que a conquista de novos ambientes (não marinhos) demandam investimento energético em mecanismos fisiológicos que possibilitem a manutenção de gradientes osmóticos e/ou iônicos entre os meios interno (fluido corporal do animal) e externo (ambiente). A amplitude destes gradientes é proporcional ao grau de sucesso do grupo zoológico na conquista de novos ambientes (e.g. crustáceos apresentam maiores gradientes do que equinodermos). A manutenção de hidratação tecidual também é importante na conquista de novos ambientes, principalmente em espécies osmoconformadoras. A AAC tem diferentes magnitudes e funções em diferentes ambientes, sendo elevada nos ambientes marinho, dulcícola e terrestre, e baixa no estuarino. Em todos os ambientes a enzima provavelmente exerce função de equilíbrio ácido-base, mas a função osmorregulatória se restringe às espécies não marinhas. A novidade do trabalho foi a abordagem comparativa, relacionando AAC a diferentes grupos zoológicos de invertebrados, e ao seu grau de conquista de ambientes de água doce e terrestres. Além disso, AAC é muito pouco estudada nos grupos dos equinodermos e dos poliquetas. Então, sob essa visão altamente comparativa, foi possível detector os padrões fisiológicos que seguem: 1) AAC se relaciona ao ambiente, e tende a ser mais alta em habitantes marinhos, dulcícolas e de água muito diluídas do que em espécies estuarinas; 2) AAC e os gradientes osmóticos / iônicos são diretamente proporcionais à eurihalinidade e ao sucesso na conquista de novos ambientes por uma espécie, e por um grupo como um todo; 3) a capacidade de manutenção de volume celular / tecidual contribui para a tolerância à salinidade de osmoconformadores e para o grau de eurihalinidade de osmorreguladores. Palavras-chave: crustáceos, equinodermos, moluscos, poliquetas, transição ambiental.
Abstract: All invertebrates evolved in the sea and, later, some conquered freshwater and terrestrial environments. Each environment has different characteristics of abiotic factors such as salinity and/or water availability. In this context, the aim of this study was to relate physiological responses of invertebrates to the occupation of new environments (freshwater and terrestrial). In chapter 1, marine, estuarine and freshwater species of invertebrates were exposed to salt stress, being echinoderms (marine only), molluscs, and crustaceans. Then analyzes were performed on osmotic and ionic concentrations of their body fluids, water content and carbonic anhydrase activity (CAA) of their tissues. In Chapter 2, four species of Sesarmidae crabs with varying degrees of terrestriality, euryhalinity, and motor activity were evaluated for hemolymph osmolality and CAA in anterior and posterior gills. In chapter 3, three species of polychaetes from different environments were studied. The constitutive osmolality and CAA were analyzed, and the cell volume regulation capacity was tested under hypo and hyperosmotic shocks of 50% intensity in relation to the isosmotic control. In these chapters, we sought to relate physiological mechanisms (mainly CAA) to the conquer of freshwater and terrestrial environments, respectively. Briefly, the results have shown that the conquest of new environments (non marine)require energy investment in physiological mechanisms that enable the maintenance of osmotic and / or ionic gradients between the internal (body fluid of the animal) and external media (environment). The magnitude of these gradients is proportional to the degree of success of the zoological group in winning new environments (e.g. crustaceans have higher gradients than echinoderms do). Tissue hydration maintenance is also important in invading new environments, especially in osmoconformer species. CAA has different magnitudes and functions in different environments, being high in marine, freshwater and terrestrial environments, and low in the estuarines. In all environments, the enzyme probably exerts acid-base balancing, but osmoregulatory function is restricted to non-marine species. The novelty here was the comparative approach relating CAA to different zoological groups of invertebrates, and to their degree of conquest of freshwater and terrestrial environments. In addition, CAA is understudied in the groups of echinoderms and polychaetes. Thus, under this highly comparative view we could detect the following physiological patterns: 1) CAA is related to environment, and tend to be higher in dwellers of marine, freshwater, and very diluted waters than in estuarine species; 2) CAA and osmotic / ionic gradients are directly proportional to the euryhalinity and to the success of conquest of new environments of a species, and even of a group as a whole; 3) capacity of maintenance of cell / tissue volume contributes to the salinity tolerance of osmoconformers and to the degree of euryhalinity of osmoregulators. Key-words: crustaceans, echinoderms, environmental transition, molluscs, polychaetes.

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Vailhé, Christophe N. P. "Planar fault energies and dislocation core spreadings in B2 NiAl." Thesis, Virginia Tech, 1992. http://hdl.handle.net/10919/46303.

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The lack of ductility of the B2 NiAl alloy stands in the way of promising applications. In an effort to understand the dislocation behavior, computer simulation of the planar faults involved in the core spreadings of <100> and <111> dislocations was carried out. Seven γ-surfaces were computed for different crystallographic planes ({110}, {112}, {123}, {210}, {100}, {111} and {122}). Stable APB's are observed in the {110} and {112} planes but they are deviated from the exact 1/2a<111> position. No other stable planar fault was observed. The dislocation core spreadings are explained by the energy balance among the directions of lowest restoring forces observed in the γ-surfaces. The complete <111> screw dislocation was stable in the simulation. According to the stable APB's, two dissociation reactions of the <111> screw dislocation in the {110} and {112} planes are proposed. The simulation of metastable superpartials shows that the dissociation in the {112} planes is very close to a stable dissociation.
Master of Science

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21

Bluemel, Britt. "Biogeochemical expressions of buried REE mineralization at the Norra Kärr Alkaline Complex, southern Sweden." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/46300.

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Biogeochemical exploration is an effective but underutilized method for delineating covered mineralization. Plants are capable of accumulating rare earth elements (REEs) in their tissue, and ferns (pteridophytes) are especially adept because they are one of the most primitive land plants, therefore lack the barrier mechanisms developed by more evolved plants. The Norra Kärr Alkaline Complex, located in southern Sweden approximately 300km southwest of Stockholm, is a peralkaline nepheline syenite enriched in heavy rare earth elements (HREEs). The deposit, roughly 300m wide, 1300m long, and overlain by up to 4 m of Quaternary sediments, has been well-defined by diamond drilling. The inferred REE mineral resource, over 60 million tonnes averaging 0.54% Total Rare Earth Oxide (TREO), is dominantly hosted within the pegmatitic “grennaite” unit, a eudialyte-catapleiite-aegerine nepheline syenite. Vegetation and soil samples were collected from the surficial environment above Norra Kärr to address four key questions: which plant species is the most effective biogeochemical exploration medium; what are the annual and seasonal REE variations in that plant; how do the REEs move through the soil profile; and into which part of the plant are they concentrated. Athyrium filix-femina (lady fern) has the highest concentration of LREEs and HREEs (up to 125.17ppm Ce and 1.03ppm Dy) in its dry leaves; however, there is better contrast between background and anomalous areas in Dryopteris filix-mas (wood fern), which makes it the preferred biogeochemical sampling medium. The REE content in all fern species was shown to decrease from root > frond > stem, and chondrite normalized REE patterns within the plant displayed preferential fractionation of the LREEs in the fronds relative to the roots. Samples collected from an area directly overlying the deposit had up to five times greater HREE content (0.74ppm Dy) in August than the same plants did in June (0.14ppm Dy). The elevated REE content and distinct contrast to background demonstrate that biogeochemical sampling is an effective method for REE exploration in this environment.
Science, Faculty of
Earth, Ocean and Atmospheric Sciences, Department of
Graduate

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Gurganus, Jill Renee. "An evaluation of educational literature distributed by the Child Health Investment Partnership." Thesis, Virginia Tech, 1993. http://hdl.handle.net/10919/46306.

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Educational literature distributed by the Child Health Investment Partnership (CHIP) staff to CHIP parents was identified and evaluated in terms of readability level and availability of information to assist with meeting the identified needs of CHIP parents. One-hundred percent (n=137) of the educational material available to CHIP staff through their library was analyzed. Readability levels were calculated by using the SMOG Readability Formula and the FRY Graph Reading Level Index. A previous study (Brindle, 1992) was used to determine whether CHIP had adequate material to meet the educational needs of CHIP families. Forty-eight percent of CHIP parents cited health as their primary concern. Almost one-half of an educational literature stocked in CHIP's library relates to health. Thus, results indicate that CHIP has a more than adequate amount of educational literature relating to topics CHIP parents believed they needed assistance with the most. It was found, however, that other areas such as financial and job assistance were underrepresented in CHIP's library. While 36 percent and 35 percent of CHIP parents believed they needed assistance with finances and jobs, respectively, only 6 percent of CHIP's library was devoted to financial assistance and two percent was devoted to job assistance. The apparent need for assistance in these areas greatly outweighs CHIP's educational resources. Results also indicate that the average CHIP parents (one who has completed high school) has the education equivalent to or more than was required for reading the majority of CHIP's educational literature. While the mean Reading Level of educational materials was at the tenth grade level sixty percent of CHIP families surveyed had completed high school. Results and conclusions are discussed in detail.
Master of Science

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Cerveira, Nuno Manuel Botelho Gonçalves Samapio. "Structural and expression changes of septins in myeloid neoplasia." Doctoral thesis, Instituto de Ciências Biomédicas Abel Salazar, 2009. http://hdl.handle.net/10216/46300.

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López, Vílchez Mª Ángeles. "Transmisión vertical del VIH en nuestro medio en la época de las posibilidades terapéutico-preventivas para minimizarla." Doctoral thesis, Universitat Autònoma de Barcelona, 2006. http://hdl.handle.net/10803/4630.

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Introducción. Desde que se comunicaron los primeros casos de SIDA pediátrico, por transmisión vertical, en diciembre de 1982 han ocurrido cambios trascendentes en la profilaxis de la transmisión vertical, especialmente desde que en 1994 se publicaron los resultados del PACTG 076, que han contribuido a disminuir, de forma global la tasa de transmisión vertical de un 25% a un 2%. En Cataluña, la tasa de transmisión ha ido disminuyendo de una manera drástica, a lo largo de los años. En la publicación de F. Ramos y colaboradores, del grupo NENEXP, donde se recogen datos desde enero de 1997 hasta diciembre de 2001, se observa una tasa de transmisión vertical del 7% (IC 95%: 2,6-11,4) que desciende al 1,6% en 2000 (IC 95%: 0,2-5,6) y hasta el 0% (IC 95%: 0,0-2,9) en 2001.
La prevalencia de la infección entre las gestantes catalanas, en la actualidad, es del 0,17% (SIVES, 2004).
En nuestro medio, el Hospital del Mar, en Barcelona, la prevalencia de gestantes infectadas por el VIH ha sido del 0,5% en 2005.
Justificación. El Hospital del Mar, debido a su ubicación y a las características de parte de su población asistida, ha sido uno de los hospitales de Cataluña con una mayor incidencia de infección por VIH en las gestantes. Hemos considerado interesante analizar lo que estaba pasando, en nuestro medio, con la profilaxis realizada, con la tasa de transmisión y los factores implicados en la misma desde que, en el año 1996, el "Departament de Sanitat i Seguretat Social de la Generalitat de Catalunya" recomendase la realización de la serología VIH a toda gestante, hasta la actualidad, para detectar aquellos factores que han sido más importantes en la transmisión y aquellos susceptibles de mejora, para minimizarla al máximo.
Objetivos. 1) Analizar el número de nuevos casos de infección VIH en los hijos de las madres infectadas que han dado a luz en el Hospital del Mar. 2) Detectar la importancia de los diferentes factores de riesgo conocidos en la transmisión vertical. 3) Demostrar la importancia fundamental de identificar a las gestantes infectadas por VIH para poder realizar una profilaxis correcta. 4) Objetivar el papel del test rápido para la detección del VIH en sala de partos. 5) Detectar los fallos en la aplicación de las pautas de prevención de la transmisión vertical, con el fin de corregirlos.
Pacientes y métodos. Se han incluido, de manera prospectiva, todos los recién nacidos hijos de madre VIH positiva nacidos en nuestro hospital, desde enero de 1996, fecha en la que se recomendó, en Cataluña, la realización de la serología VIH en el primer trimestre de la gestación, hasta diciembre de 2005. El total de recién nacidos incluidos ha sido 124, provenientes de 109 gestantes. Se han dividido en diferentes grupos para hacer las comparaciones entre ellos.
Resultados y Conclusiones más relevantes. Del total de recién nacidos, han resultado infectados 8, lo que supone un 6,45%. En el grupo de los recién nacidos cuyas madres fueron identificadas y la profilaxis fue correcta, la tasa de transmisión baja al 3,6%. En el grupo posterior a 1999, el porcentaje de infectados ha sido del 3,8%. El resultado del modelo multivariado de regresión logística mostró como significativas dos variables, de tal manera que, aquellos recién nacidos que nacen tras una ruptura de bolsa superior o igual a 4 horas tienen 6,14 veces más posibilidades de resultar infectados y aquellos cuyas madres no han sido identificadas en el momento del parto como VIH+ tienen 8,2 veces más posibilidades de infectarse. Cuando la profilaxis es correcta, hay un 30% más de gestantes que llegan al final del embarazo con una carga viral <1000 copias/ml, respecto a aquellos casos en los que la profilaxis es incorrecta, diferencias estadísticamente significativas. Respecto a la utilización de antirretrovirales para la profilaxis, en un 25% de los infectados, no se realizó en ningún momento, porcentaje que baja al 1,3% en los casos posteriores a 1999, lo que indica una mayor implicación en el abordaje de estas gestaciones. Las cesáreas electivas son tres veces más frecuentes en el grupo serorrevertido. La identificación de la gestante como infectada ha sido un factor primordial para evitar la transmisión vertical del VIH. La realización del test diagnóstico rápido del VIH en sala de partos, en gestaciones en las que se desconoce la serología materna para el VIH, es fundamental para establecer medidas preventivas y evitar la transmisión de la infección al recién nacido. Pese a tener medidas para evitar la transmisión vertical, los porcentajes de profilaxis correcta son bajos y susceptibles de una gran mejoría.

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Ji, Fengyuan. "Language and politics during the Chinese Cultural Revolution: a study in linguistic engineering." Thesis, University of Canterbury. Linguistics, 1988. http://hdl.handle.net/10092/4630.

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Zuluaga, Marcela. "Efficient design-space exploration of custom instruction-set extensions." Thesis, University of Edinburgh, 2010. http://hdl.handle.net/1842/4630.

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Customization of processors with instruction set extensions (ISEs) is a technique that improves performance through parallelization with a reasonable area overhead, in exchange for additional design effort. This thesis presents a collection of novel techniques that reduce the design effort and cost of generating ISEs by advancing automation and reconfigurability. In addition, these techniques maximize the perfomance gained as a function of the additional commited resources. Including ISEs into a processor design implies development at many levels. Most prior works on ISEs solve separate stages of the design: identification, selection, and implementation. However, the interations between these stages also hold important design trade-offs. In particular, this thesis addresses the lack of interaction between the hardware implementation stage and the two previous stages. Interaction with the implementation stage has been mostly limited to accurately measuring the area and timing requirements of the implementation of each ISE candidate as a separate hardware module. However, the need to independently generate a hardware datapath for each ISE limits the flexibility of the design and the performance gains. Hence, resource sharing is essential in order to create a customized unit with multi-function capabilities. Previously proposed resource-sharing techniques aggressively share resources amongst the ISEs, thus minimizing the area of the solution at any cost. However, it is shown that aggressively sharing resources leads to large ISE datapath latency. Thus, this thesis presents an original heuristic that can be parameterized in order to control the degree of resource sharing amongst a given set of ISEs, thereby permitting the exploration of the existing implementation trade-offs between instruction latency and area savings. In addition, this thesis introduces an innovative predictive model that is able to quickly expose the optimal trade-offs of this design space. Compared to an exhaustive exploration of the design space, the predictive model is shown to reduce by two orders of magnitude the number of executions of the resource-sharing algorithm that are required in order to find the optimal trade-offs. This thesis presents a technique that is the first one to combine the design spaces of ISE selection and resource sharing in ISE datapath synthesis, in order to offer the designer solutions that achieve maximum speedup and maximum resource utilization using the available area. Optimal trade-offs in the design space are found by guiding the selection process to favour ISE combinations that are likely to share resources with low speedup losses. Experimental results show that this combined approach unveils new trade-offs between speedup and area that are not identified by previous selection techniques; speedups of up to 238% over previous selection thecniques were obtained. Finally, multi-cycle ISEs can be pipelined in order to increase their throughput. However, it is shown that traditional ISE identification techniques do not allow this optimization due to control flow overhead. In order to obtain the benefits of overlapping loop executions, this thesis proposes to carefully insert loop control flow statements into the ISEs, thus allowing the ISE to control the iterations of the loop. The proposed ISEs broaden the scope of instruction-level parallelism and obtain higher speedups compared to traditional ISEs, primarily through pipelining, the exploitation of spatial parallelism, and reducing the overhead of control flow statements and branches. A detailed case study of a real application shows that the proposed method achieves 91% higher speedups than the state-of-the-art, with an area overhead of less than 8% in hardware implementation.

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Aylor, Samantha Olivia. "The Effect of Drug Resistance on Plasmodium falciparum Transmission and Gametocyte Development." Scholar Commons, 2013. http://scholarcommons.usf.edu/etd/4630.

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In order to reduce malaria prevalence worldwide, a better understanding of parasite transmission and the effect of drug resistance is needed. The effect of drug resistance on malaria transmission has been examined for some drugs, but not for mitochondrial inhibitors such as atovaquone and the current basis of malaria therapy, artemisinin. Therefore, the goal of this study was to produce gametocytes, the life cycle stage that transmits from mosquito to human, in several different drug resistant patient isolates as well as to determine the effect of drug resistance on gametocyte development and transmission. Previous studies have shown that the mutation that confers resistance to atovaquone, a common antimalarial, occurs de novo after treatment and transmission of this resistance is not seen in the field. Therefore, to determine whether or not the resistance mutation can be transmitted, mosquito-feeding experiments were conducted using atovaquone resistant parasites and resulting oocyst DNA was analyzed. In addition to these atovaquone studies, artemisinin resistant gametocytes were also grown in vitro and drug pressure was added to determine if resistance mechanisms affect gametocyte development. This study is the first examine gametocyte development in these resistant strains and the first to report that transmission of the atovaquone resistant mutation may be possible. However, data is currently inconclusive on the effect of artemisinin resistance on gametocyte development.

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28

Van, der Westhuizen Sune. "A qualitative study generating an item pool for a scale that measures negativity experienced by HIV/AIDS lay counsellors." Thesis, Stellenbosch : University of Stellenbosch, 2006. http://hdl.handle.net/10019.1/4630.

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29

Singh, Rajiv. "The relationship between strategic thinking and peak performance in branch banking / by Rajiv Singh." Thesis, North-West University, 2010. http://hdl.handle.net/10394/4630.

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This study was undertaken within the Branch Banking business unit of YY Bank, a major player in the South African financial services industry. Following the need to drive superior overall performance within branch banking, while creating an aspiration element for top managers who are career orientated, selected branches were grouped into the Associate model. The Associate model can be described as the formalisation of an 'owner–manager' model that empowers the Associate Manager through a defined mandate with broader or higher discretion relating to aspects of its operations. During the recruitment and selection process, it became evident that while candidates maintained a sound operational perspective of the business, their strategic thinking ability was in some instances, somewhat and in others, seriously lacking. The research objective of this study was to determine the relationship between strategic thinking and overall peak performance among Associate Managers. The Stratified Systems Theory (SST), composed by Elliott Jacques (1989) formed the basis and guiding principle of this study. The study constituted a dependant variable - the potential capability score (CPP) and four independent performance measurement variables. A literature study was pursued to establish the relevance of strategy and the contribution of strategic thinking towards overall performance. The view of Thompson Jr, Strickland & Gamble (2010: 17) holds that a strategy–focused business is more likely to be a strong bottom–line performer than a company whose management team does not take strategy–making responsibilities seriously. A further notion about strategic thinking is that it implies thinking 'outside the box' and it precedes strategy formulation. Another citation by Allio (2006: 4), points out that the prime objective of strategic thinking is to place the organisation in a competitive position. The study sample constituted all incumbents who were successfully appointed as Associate Managers. The results of a multivariate statistical analysis suggests no relationship between CPP and overall peak performance. Within the context of branch banking and Associate Managers, certain inherent factors point to this outcome - a key aspect being the largely operational nature of a bank branch. Despite the result and, taking into cognisance certain study limitations, we cannot conclude that strategic thinking does not contribute towards peak performance and recommendations are made for further explorative study. A decade of shifts within the industry has promoted an increase of new entrants. These banks are now, with the aid of technological advancement, becoming sophisticated in their product and service offerings and are able to target and penetrate complex markets. Clearly, competitiveness has heightened which, demands of Branch Banking and the Associate Manager, a new and refreshed perspective towards the business outlook. Associate Managers must now, to a greater degree, interact and adapt to ongoing changes in an increasingly complex and challenging market. This requires an integrated, holistic approach towards business planning and strategy execution. No longer can Associate Managers sustain profitable returns purely through an operational orientation but must adopt a balanced approach in their strategic insight, operational and risk management, resource management as well as strategy execution. For Branch Banking, it becomes increasingly necessary to develop and harness strategic thinking skills among individual managers which, in turn, will facilitate strategic insight and bode well for strategic planning. Further, the business unit should continue to apply the CPP assessment tool in the recruitment process - particularly for managerial appointments – in order to determine individuals' cognitive potential and identify skills development opportunities among incumbents. In an effort to encourage strategy formulation among Associate Managers, the responsibility for certain functional strategies (sales and service) should be decentralised thereby encouraging strategy formulation at local and branch level. Associate Managers have been generally good at executing strategy but the future, in all its possibilities, demands a certain level of strategic insight in order to enable a competitive positioning within the local market.
Thesis (M.B.A.)--North-West University, Potchefstroom Campus, 2011.

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Ellis, James E. "Data visualization of ISR and C2 assets across multiple domains for battlespace awareness." Thesis, Monterey, California. Naval Postgraduate School, 2009. http://hdl.handle.net/10945/4630.

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Approved for public release, distribution unlimited
In this thesis, we have developed a prototype application that is capable of providing ISR situational awareness to C2 nodes at the Joint Task Force (JTF) level and below. The prototype application is also capable of providing information that will allow joint intelligence planners to plan ISR operations more efficiently, including allocation of intelligence-gathering platforms and sensors, and processing, exploitation, and dissemination (PED) assets to information requests.

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31

Walk, Carrie. "Evaluation of the efficacy of high levels of microbial phytase in broilers." Diss., Columbia, Mo. : University of Missouri-Columbia, 2006. http://hdl.handle.net/10355/4630.

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Thesis (M.S.)--University of Missouri-Columbia, 2006.
The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on April 22, 2009) Includes bibliographical references.

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Кущ, Т. В. "Византийские интеллектуалы последней трети XIV – первой половины XV вв.: социокультурное измерение : автореф. дис. … д-ра ист. наук : 07.00.03." Thesis, б. и, 2013. http://hdl.handle.net/10995/4630.

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Fonseca, Malavasi Marisol. "El agua cántara: incursiones de la belleza." Thesis, University of Iowa, 2014. http://ir.uiowa.edu/etd/4630.

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El agua cántara es una historiografía apócrifa de la literatura. Esta compilación incluye versiones paródicas del realismo, el romanticismo, el costumbrismo y el posthumanismo, entre otros discursos, géneros y movimientos (los cuales, desde la óptica del absurdo, bien pueden ser una misma cosa). Además de realizar un recorrido por algunas de las principales formas textuales de Occidente, esta antología elabora y rastrea su propio mito de origen de la literatura: el sonido como máximo valor estético.

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Steibel, Gustavo. "Alterações do timo fetal secundárias ao uso de corticóide para maturação pulmonar." Pontifícia Universidade Católica do Rio Grande do Sul, 2011. http://hdl.handle.net/10923/4630.

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Made available in DSpace on 2013-08-07T19:06:21Z (GMT). No. of bitstreams: 1 000433664-Texto+Completo-0.pdf: 556146 bytes, checksum: f1547b214dce555fdf116d5fa8243c45 (MD5) Previous issue date: 2011
Objective: To evaluate the fetal thymus size by ultrasound 24h- 48 h after the use of Betamethasone for lung maturation in pregnancies between 24 and 34 weeks. Methods: a prospective study of 25 pregnant women whom received Betamethasone intramuscular therapy to enhance fetal lung maturation before 34 weeks of pregnancy. Thymus perimeter and diameter were recorded during ultrasound examination before and 24h, 48 h after corticosteroid therapy. Results: Both the diameter and the perimeter of the fetal thymus were smaller 24h and 48h after the use of Betamethasone. The means of the thymus diameters were 25,5 ± 3,7; 21, 7 ± 3,6 and 20,2 ± 5,5 mm and of thymus perimeters were 89,8 ± 9,5; 78,6 ± 8,6 and 76,6 ± 15,0 mm for 0, 24h and 48 h, respectively (P < 0. 001).Conclusions: Betamethasone for lung maturation is possibly associated with the decrease of the thymus diameter and perimeter in 24 - 48 h. This may increase falsely the number of fetus with the thymus size below 5 th percentile if the thymus evaluation is done after the use of the corticoesteroides.
Objetivo: Avaliar as medidas do timo fetal através da ultrassonografia 24 e 48 horas após o uso de Betametasona para maturação pulmonar em gestações entre 24 e 34 semanas.Métodos: estudo prospectivo com 25 gestantes que receberam Betametasona intramuscular para maturação pulmonar fetal antes de 34 semanas de gestação. As medidas do perímetro e do diâmetro do timo foram realizadas antes, 24 e 48 horas após o uso do corticoide. Resultados: o diâmetro e o perímetro do timo diminuíram após 24 e 48 horas da administração de Betametasona. As médias do diâmetro foram 25,5 ± 3,7; 21, 7 ± 3,6 e 20,2 ± 5,5 mm e do perímetro foram 89,8 ± 9,5; 78,6 ± 8,6 e 76,6 ± 15,0 mm para 0, 24h e 48 h, respectivamente (P < 0. 001).Conclusão: O uso de Betametasona para maturação pulmonar fetal pode estar associada com a diminuição do diâmetro e do perímetro do timo fetal. Este fato pode aumentar falsamente o número de fetos com timos considerados abaixo do percentil 5, caso a medida seja realizada após o uso de corticoide.

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Shivangulula, Shirley Euginia Ndahafa Uvatera. "Employment demand, employability and the supply-side machinery : the case of the children of the liberation struggle of Namibia." University of the Western Cape, 2012. http://hdl.handle.net/11394/4630.

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Philosophiae Doctor - PhD
Over the past four years, growing volumes of media literature centre staged the Namibian economy with the dilemma of the ‘Children of the Liberation Struggle of Namibia’ (CoLSoN) in their resilient protest for employment. Yet, amid such chronicled portrayal and persistent social, economic and political discourse, the underpinnings of the plight of the CoLSoN for labour market participation received vigorous scholarly inattention and remained scientifically unexplored. This study, therefore, contributes to the body of knowledge on the employability, employment prospects and vulnerability to unemployment, and public policy interventions depicting the unemployed CoLSoN in Namibia. The Researcher situated the study in a post-positivist paradigm. Positioned in the Human Capital Theory, the study utilised the employability theory to examine the employability of the unemployed CoLSoN. The study employed the conceptual framework of employment prospects and vulnerability to unemployment to investigate the domains responsible for the low employment prospects and vulnerability to unemployment of the unemployed CoLSoN. Drawing on the theory of search and match, the study examined the typology of the supply-side effort of Government to establish the controlling of the ensuing disequilibrium of the demand-supply side efforts. The study employed a concurrent mixed method design comprising quantitative and qualitative schemes of inquiry, and drew a sample size of 605 unemployed CoLSoN through the simple random probability sampling procedure to respond to a 76-item survey instrument. Additionally, the study drew a purposive sub sample of 50 CoLSoN and two organisations to amplify the experiences of the unemployed CoLSoN and inform of the policy options directed to their plight through semi-structured interviews. The study analysed the quantitative data utilising the ANOVA, Multiple regression techniques, Spearman correlation and t-test of the SPSS software. Qualitative data analysis occurred through the application of thematic categorisation. The study found that fierce labour market demands and administrative malice delay the transition into the labour market of the unemployed CoLSoN. The interviews revealed intergenerational poverty transmission a distant, but potent dynamic of degenerating individual qualities among the unemployed CoLSoN for employability. The ANOVA sustained the postulation that low employability traits are not equally prevalent in all the age groups of the unemployed CoLSoN. Estimates indicate that a mere investment in the education of the unemployed CoLSoN would improve their generic employability by about 11%. The study recommends the exercise of employability as an Active Labour Market Policy to balance the demand-supply-side inconsistencies of the labour market that exclude the disadvantaged from participating therein. The study further recommends the reinforcement of institutional audit procedures to control the inaptness of intentional administrative barriers to the labour market participation of the CoLSoN. The study also recommends the granting of fiscal incentives to the private sector for a speedy absorption of the CoLSoN into the labour market. That way, the low employment prospects among the unemployed CoLSoN would contract. Their employability for labour market participation would augment, invigorating them to take charge of their lives and curb poverty transmission to the next generations.

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Baia, Paulo Fernandes. "A crise da dívida subnacional brasileira nos anos 1990: uma abordagem institucionalista." reponame:Repositório Institucional do FGV, 2001. http://hdl.handle.net/10438/4630.

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O endividamento subnacional brasileiro na década de 1990 não pode ser explicado sem o recurso a variáveis institucionais. Do ponto de vista teórico, a dívida subnacional é determinada por variáveis macroeconômicas e institucionais. Entre as últimas, as mais importantes são a natureza das relações fiscais intergovernamentais, que, por sua vez, são determinadas pelas relações federativas, pelo sistema de governo, pelo sistema partidário-eleitoral e pelo regime fiscal, todos subconjuntos do regime político. No caso brasileiro, o quadro de estagflação do início da década de 1990, associado ao nível elevado dos juros reais, foi um fator influente na expansão da dívida. Entretanto, o papel maior coube à existência, entre 1987 e 1998, de uma restrição institucional fraca ao endividamento. O relaxamento das restrições foi uma conseqüência da forma como ocorreu o processo de mudança do regime político. A imposição de limites fiscais só começou a ser feita a partir de 1994, quando a transição política já havia se completado e ressurgia um governo federal com força suficiente para retomar a função estabilizadora.

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Sargento, Susana. "Gestão de recursos em redes com suporte de qualidade de serviço." Doctoral thesis, Universidade de Aveiro, 2003. http://hdl.handle.net/10773/4630.

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Doutoramento em Engenharia Electrotécnica
Esta Tese aborda a problemática da gestão de recursos em redes ATM (Asynchronous Transfer Mode) e IP (Internet Protocol) com suporte de QdS (Qualidade de Serviço). As tecnologias ATM e IP permitem, hoje em dia, integrar diferentes tipos de serviços numa mesma infra -estrutura de rede. No entanto, a diversidade dos serviços a suportar e dos seus requisitos, coloca grandes desafios ao nível da gestão de recursos, a qual se pretende o mais eficiente possível. A Tese está dividida em duas partes. A primeira parte da Tese foca a gestão de recursos em redes de acesso ATM e IP com suporte de QdS. É dada inicialmente uma perspectiva histórica da evolução das redes de acesso. No que diz respeito às redes de acesso ATM, são propostas estratégias de gestão de recursos com base em VPs (Virtual Paths) e são definidas metodologias de dimensionamento que têm em conta requisitos de QdS tanto ao nível da chamada como da célula. As estratégias de gestão de recursos consideradas permitem estabelecer compromissos entre a utilização de recursos e a carga de sinalização. No que diz respeito às redes de acesso IP, é proposta uma nova arquitectura de rede, que constitui uma evolução face às redes de acesso tradicionais ao permitir uma maior partilha de recursos. Esta arquitectura permite diferenciação de QdS e suporte de aplicações multimédia. Em particular é proposta uma solução que inclui o suporte integrado de tecnologias recentemente introduzidas para iniciar e configurar sessões multimédia, gerir as políticas de QdS incluindo as funcionalidades de AAA (Authentication, Authorization and Accounting), e reservar recursos. Na segunda parte da Tese é feita uma abordagem de dois mecanismos para controle de admissão de fluxos escaláveis: mecanismos de probing e mecanismos baseados em agregação de reservas individuais. Ambos os mecanismos permitem que a gestão de recursos seja feita sem necessidade de manutenção do estado dos fluxos activos em cada elemento de rede. O mecanismo de probing estima o nível de QdS da rede, através da inserção de fluxos de teste, por forma a decidir se um novo fluxo pode ou não ser aceite. É proposto um novo mecanismo de probing, denominado de ?-probing, que permite minimizar o problema do roubo de recursos que afecta o probing simples quando este é utilizado em sistemas com múltiplas classes de serviço. São desenvolvidos modelos analíticos e são efectuados estudos de simulação para analisar o problema do roubo de recursos e os factores que influenciam a estimativa do rácio de perdas efectuada pelos fluxos de probing e de ?-probing. Verificou-se que o mecanismo de ?-probing permite obter simultaneamente uma utilização elevada dos recursos e a diferenciação dos serviços sem roubo de recursos. Os resultados obtidos com este mecanismo foram também validados através do desenvolvimento de um protótipo laboratorial. No mecanismo baseado em agregação de reservas individuais, os elementos do núcleo da rede mantêm apenas o estado de agregados de fluxos (e não de fluxos individuais), sendo a largura de banda dos agregados ajustada de forma dinâmica. São desenvolvidos modelos analíticos e são efectuados estudos de simulação para analisar o compromisso entre a carga de sinalização e a utilização de recursos. Estes estudos mostram que a hierarquização da rede, ou seja, a sua divisão em áreas mais pequenas, e a configuração de agregados entre os routers fronteira das áreas, por oposição a agregados extremo-a-extremo entre os routers fronteira do domínio, permitem atingir uma utilização de recursos próxima da utilização com sinalização fluxo -a-fluxo, mas com uma carga de sinalização significativamente inferior.
This Thesis addresses the problem of resource management in ATM (Asynchronous Transfer Mode) and IP (Internet Protocol) networks with QoS (Quality of Service) support. ATM and IP technologies allow, nowadays, the integration of different types of services in the same network infrastructure. However, the variety of services and their requirements, involve big challenges at the resource management level, which needs to be as efficient as possible. This Thesis is divided in two parts. The first part of the Thesis addresses the resource management of ATM and IP access networks with QoS support. It is presented an historical perspective of the access networks evolution. In terms of ATM access networks, resource management strategies based on VPs (Virtual Paths) are proposed, and dimensioning methodologies are defined, which take into account the QoS requirements at the call and cell level. The considered resource management strategies allow the establishment of trade-offs between the resource utilization and the signaling load. In terms of IP access networks, it is proposed a new network architecture that represents an evolution of the legacy access networks, allowing a larger resource sharing. This architecture allows QoS differentiation and support for multimedia applications. More specifically, it is proposed a solution that includes the integrated support of recently introduced technologies to establish and configure multimedia sessions, manage the QoS policies including AAA (Authentication, Authorization and Accounting) functions, and reserve network resources. In the second part of the Thesis, two scalable call admission control mechanisms are addressed: probing mechanisms and mechanisms based on the aggregation of individual reservations. Both mechanisms allow resource management without the maintenance of the per-flow state in each network element. The probing mechanism estimates the network QoS level, through the insertion of probe flows, to decide if a new flow can be accepted or not. A new probing mechanism is proposed, denoted by ?-probing, which minimizes the resource stealing problem that exists in the simple probing mechanism when it is applied to a system with multiple service classes. Analytical models are developed and simulation studies are performed to analyze the resource stealing problem and to determine the influencing factors on the estimation of the loss ratio performed by the probing and ?-probing flows. The ?-probing mechanism obtains, simultaneously, a high resource utilization and service differentiation without resource stealing. The results obtained with this mechanism were also validated through the development of a probing test-bed. In the mechanism based on the aggregation of individual reservations, the core network elements only need to maintain the state of the flows’ aggregate (instead of individual flows), and the aggregates’ bandwidth is dynamically adjusted. Analytical models are defined and simulation studies are performed to analyze the trade -off between signaling load and resource utilization. These studies show that the hierarquization of the network, that is, its partition in smaller areas, and the configuration of aggregates between area border routers, as opposed to end-to - end aggregates between domain border routers, reaches an utilization close to the one of per-flow signaling with a signaling load significantly smaller.

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Gainyard, Nicole Michelle. "Trouble in paradise: rupture of the pastoral plantation myth in American literature, 1832-1921." Diss., University of Iowa, 2013. https://ir.uiowa.edu/etd/4630.

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In "Trouble in Paradise: Rupture of the Pastoral Plantation Myth in American Literature, 1832-1921," I argue that nineteenth-century African American and white writers use the plantation space in their texts as a barometer of American politics and life. Beginning with a case study of John Pendleton Kennedy's Swallow Barn (1832 revised 1851), "Trouble in Paradise" argues that the plantation is fraught with contradiction, conflict, and decay, but it also accommodates other views that are not visible from the big house windows. Therefore, I use Plantation Geography, a spatially-driven model, to reveal the sociopolitical costs of slavery through a comparative analysis of what Patricia Yeager calls "themed spaces." In this framework, the big house acts as a hub that may regulate the widening places--forest, coffeehouse, tavern--which were nonetheless imagined to radiate from it. Feeling the normative pull of the big house, these far-flung places decenter the master's home as the plantation's symbol of power and stability, and locates alternative pathways and their accompanying activities as primary locales of antebellum life. Therefore, while Kennedy intended to preserve the whimsical charm of country life in the Old Dominion, he more publicly remapped the plantation space as national attitudes shifted. By focusing on a variety of plantation spaces--cabins, kitchens, sheds, and stables--and the routes between them, "Trouble in Paradise" challenges the limits of African American democratic participation suggesting that their activities transform and exceed plantation boundaries. Writers throughout this period take a cue from Kennedy's novel by revising the plantation space in vastly different ways. Chapter One, "A House Divided: The Abolitionist Deployment of the Plantation Landscape, 1850-1862," looks at how Harriet Beecher Stowe's Uncle Tom's Cabin (1852) and Frederick Douglass's The Heroic Slave (1853) utilize the plantation as a means of abolitionist protest. Specifically, this chapter discusses the ways in which Uncle Tom and Madison Washington expose, challenge and transform their positions through their activities in a myriad of spaces including alternative sites beyond the plantation. Therefore, distant places in both novels have a proclivity to either promise or peril; while the cotton gin-house shed, tavern, Quaker home, and ship are potential sites where a slave's minority status could be reaffirmed, their distance from the plantation proper decreases the big house's power and pull. However, as much as these spaces present real opportunities for change, their transitory nature constantly challenged the assurance of a former slave's subjectivity. As promising as these spaces are, the real challenge was to renegotiate the United States as a nation that would eventually support the incorporation of African Americans into its body politic as American citizens. Chapter Two, "Paradise Lost: The State of the Myth during the Civil War and Reconstruction," explores two distinct literary visions of the South as their protagonists' struggle to reconcile themselves to the demise of their plantations during and after the Civil War. Joseph Addison Turner's The Old Plantation: A Poem (1862) reveals a perspective of the plantation through the son of a slaveholder, who tinges southern nostalgia with melancholy, pathos, loss, and decay. However, the poem reveals the limits of his vision because the plantation cannot be replicated and maintained on a national scale. Although Turner's Reconstruction writings reveal an angry and bitter southerner who criminalizes African American movement and pathways, his works also reveal the hope of a new South as a Phoenix, primed to rise from the plantation ashes. Harper's novella counters Turner's lament by chronicling the journey of a man and woman who discover their African-American ancestry. This revelation holds the big house and the White House accountable to the slave cabins of the South and suggests that a radical restructuring of spaces is vital to the South's rebirth. This in effect reveals the conflict between the crippling power of the pastoral plantation in the hearts and minds of white southerners and the courageous endeavors of the emerging African American community as they all participated in the reorganization of the South. Chapter Three, "The `Good Ole Days': Reconciliationist Literature and its Discontents" argues that Joel Chandler Harris's Uncle Remus: His Songs and Sayings (1880) and Charles Chesnutt's Conjure Woman (1899) utilize the pastoral plantation in sharp contrast to their antebellum counterparts. While the harmonious spaces of the plantation and Uncle Remus's cabin serve as a framework for the predatory world of the animals in the folktales, these spaces also foster amnesia about the brutality of black bondage and the Civil War by focusing on the good ole days of slavery. Episodes of hostility, violence, toil, and sacrifice by blacks are encrypted exclusively as a series of folktales told by Uncle Remus to the little white boy within the confines of his old slave cabin. However, Charles Chesnutt's The Conjure Woman presents a vision of the plantation as a site of business created to extract wealth from slave labor and the land. Published in The Atlantic Monthly as early as 1887, these stories reveal local and national connections to the plantation through John and Annie's relocation to North Carolina from northern Ohio. At the heart of these tales are Julius's unpleasant memories of an Old South rife with thievery, conjuring, and murder as he seeks to renegotiate his claim to the McAdoo plantation with John and Annie. Both writers reveal a complicated recollection of the pastoral plantation that the earlier Kennedy could not imagine. Concluding with Paul Laurence Dunbar's The Sport of the Gods (1902), "Trouble in Paradise" continues to explore the pastoral myth's inconsistencies, appeal and contradictions incepted by John Pendleton Kennedy's Swallow Barn. In the opening scene of Dunbar's novel, a slave cottage much like the one in Kennedy's novel is resurrected and misery once again intrudes upon Eden. In a dark rebuttal, Dunbar challenges Harris's positive conclusion and suggests that everyone eventually bears the costs of the plantation, including whites. Furthermore, while several scholars argue that Dunbar's ending does not offer social or political alternatives to the plantation model, The Sport of the Gods revisits a space--the urban milieu--as a site where African Americans continue the process of creating a new identity away from the plantation proper. In doing so, this project presents a comprehensive paradigm that enlarges the plantation's boundaries and a narrow definition of "the South."

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Hogge, Joshua Ryan. "Achieving Uniform Flow Distribution in Compact Irrigation Splitter Boxes with High Flow Rates." DigitalCommons@USU, 2016. https://digitalcommons.usu.edu/etd/4630.

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In many irrigation systems and networks, there are multiple water users and shareholders who take their water from different locations along a single canal or pipeline. Often, irrigation splitter boxes are used to divert water to multiple shareholders from a single location. The splitter boxes, which can be small and compact, are generally installed at different locations along a piped irrigation supply line. The purpose of a splitter box is to split a specific amount of water so that each user receives their allotted portion, regardless of the flow rate in the system. Each splitter box usually includes two compartments, separated by a wall that acts as a weir for the water to flow over. The water in the supply pipe enters the box and fills the upstream compartment until it spills over the weir. As water flows over the weir, it is separated by vertical dividers. Each divider is positioned to split a certain percentage of the total flow to one of the outlet pipes, which carry the water to various destinations. In general, splitter boxes perform very well at lower flow rates. However, if high flow rates are present in the box, due to under-design of the box or for any reason, the water surface becomes turbulent and the flow profile over the weir becomes disturbed and nonuniform. Because of these conditions, the flow becomes unevenly distributed and an accurate flow split cannot be achieved. This study focuses on developing a solution that can be installed in flow splitter boxes to effectively dissipate energy and uniformly distribute the flow across the length of the weir during times of high flow rates.

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Stanton, Kevin Blythe. "Matching Points to Lines: Sonar-based Localization for the PSUBOT." PDXScholar, 1993. https://pdxscholar.library.pdx.edu/open_access_etds/4630.

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The PSUBOT (pronounced pea-es-you-bought) is an autonomous wheelchair robot for persons with certain disabilities. Its use of voice recognition and autonomous navigation enable it to carry out high level commands with little or no user assistance. We first describe the goals, constraints, and capabilities of the overall system including path planning and obstacle avoidance. We then focus on localization-the ability of the robot to locate itself in space. Odometry, a compass, and an algorithm which matches points to lines are each employed to accomplish this task. The matching algorithm (which matches "points" to "lines") is the main contribution to this work. The .. points" are acquired from a rotating sonar device, and the "lines" are extracted from a user-entered line-segment model of the building. The algorithm assumes that only small corrections are necessary to correct for odometry errors which inherently accumulate, and makes a correction by shifting and rotating the sonar image so that the data points are as close as possible to the lines. A modification of the basic algorithm to accommodate parallel lines was developed as well as an improvement to the basic noise removal algorithm. We found that the matching algorithm was able to determine the location of the robot to within one foot even when required to correct for as many as five feet of simulated odometry error. Finally, the algorithm's complexity was found to be well within the processing power of currently available hardware.

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Guerra, Jacquelyne. "Evaluation of an Opioid Risk-Assessment Screening Tool." ScholarWorks, 2018. https://scholarworks.waldenu.edu/dissertations/4630.

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According to the Centers for Disease Control and Prevention, prescribers should evaluate risk factors related to opioid use prior to initiation of opioid medication. The practice problem in this DNP project was that providers failed to consistently assess patients with complaints of pain for risk of opioid misuse and/or abuse prior to initiating opioid medication. An opioid risk-assessment screening tool (ORAST) has the potential to identify patients at high risk for opioid misuse and/or abuse. The purpose of this Doctor of Nursing Practice project was to identify and introduce an ORAST and then develop a policy to guide providers in its use in an ambulatory care clinic. Rosswurm and Larrabee's model for evidence-based practice served as the framework that helped guide project development. Evidence in the literature review supported The Opioid Risk Tool (ORT) as the most appropriate tool for the clinic. An 11-member project team voted unanimously for the ORT and to develop a policy to guide the use of the tool in the clinic. The ORT and its policy were evaluated by the team using the AGREE II Instrument. The team agreed that the ORT and its policy should be implemented into their practice setting (64% strongly agreed and 36% moderately agreed). A summative evaluation supported the Doctor of Nursing Practice student leadership of the project. Use of an ORAST has the potential to create positive social change by reducing the number of prescribed opioid by assisting providers in determining a patient's plan of care based on the patient's level of risk for prescription opioid misuse and/or abuse. Patient outcomes may be improved through reduction in opioid misuse and/or abuse.

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Hattingh, Petrus Johannes. "The normal tax treatment of cross-border dealings between various parts of a company in terms of the Income Tax Act, No. 58 of 1962, compared to selected aspects of the Organisation for Economic Cooperation and Development's Model convention on incom." Master's thesis, University of Cape Town, 2006. http://hdl.handle.net/11427/4630.

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Han, Puxiao. "Distributed sparse signal recovery in networked systems." VCU Scholars Compass, 2016. http://scholarscompass.vcu.edu/etd/4630.

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In this dissertation, two classes of distributed algorithms are developed for sparse signal recovery in large sensor networks. All the proposed approaches consist of local computation (LC) and global computation (GC) steps carried out by a group of distributed local sensors, and do not require the local sensors to know the global sensing matrix. These algorithms are based on the original approximate message passing (AMP) and iterative hard thresholding (IHT) algorithms in the area of compressed sensing (CS), also known as sparse signal recovery. For distributed AMP (DiAMP), we develop a communication-efficient algorithm GCAMP. Numerical results demonstrate that it outperforms the modified thresholding algorithm (MTA), another popular GC algorithm for Top-K query from distributed large databases. For distributed IHT (DIHT), there is a step size $\mu$ which depends on the $\ell_2$ norm of the global sensing matrix A. The exact computation of $\|A\|_2$ is non-separable. We propose a new method, based on the random matrix theory (RMT), to give a very tight statistical upper bound of $\|A\|_2$, and the calculation of that upper bound is separable without any communication cost. In the GC step of DIHT, we develop another algorithm named GC.K, which is also communication-efficient and outperforms MTA. Then, by adjusting the metric of communication cost, which enables transmission of quantized data, and taking advantage of the correlation of data in adjacent iterations, we develop quantized adaptive GCAMP (Q-A-GCAMP) and quantized adaptive GC.K (Q-A-GC.K) algorithms, leading to a significant improvement on communication savings. Furthermore, we prove that state evolution (SE), a fundamental property of AMP that in high dimensionality limit, the output data are asymptotically Gaussian regardless of the distribution of input data, also holds for DiAMP. In addition, compared with the most recent theoretical results that SE holds for sensing matrices with independent subgaussian entries, we prove that the universality of SE can be extended to far more general sensing matrices. These two theoretical results provide strong guarantee of AMP's performance, and greatly broaden its potential applications.

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Vizkelety, Béatrice. "Proving discrimination in Canada." Thesis, University of Ottawa (Canada), 1985. http://hdl.handle.net/10393/4630.

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Whiteley, Danette F. "Online enhancement for the choral classroom." Kansas State University, 2010. http://hdl.handle.net/2097/4630.

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Master of Music
Department of Music
Julie Yu
John Dewey once said, “If we teach today as we taught yesterday, we rob our children of tomorrow.” I believe this to be true even in the choral classroom. This paper discusses my philosophy of music education along with ways to incorporate technology into a choral music classroom through the use of web-based resources. As with any educational discipline, technology must be used in the right context to be the most effective. It must be filled with activities, instruction, and guided practice that can pass through the filter of your own philosophy of education and disseminated throughout the Nation Standards in Arts Education.

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Fonseca, Vladimir João de Oliveira Lopes Dias da. "Counterparty and Liquidity Risk : an analysis of the negative basis." Master's thesis, Instituto Superior de Economia e Gestão, 2011. http://hdl.handle.net/10400.5/4630.

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Mestrado em Finanças
In this study we analyse the equivalence between credit default swap (CDS) spreads and corporate bond yield spreads from March 2007 to March 2011 for investment graded corporate entities in the eurozone. We find evidence of cointegration between the two markets and that CDS prices tends to lead corporate yield spreads. We find support for significant effects of counterparty and funding risks in the basis, measured as the difference between CDS and corporate yield spreads, with negative impact, and that liquidity also matters in this context.
No contexto da relação teórica de equilíbrio entre os preços dos CDS e as yield spreads das obrigações das empresas face a taxas de juro sem risco, este trabalho conclui que existe cointegração entre estas duas variáveis para entidades de referência na zona euro no período que decorre entre Março de 2007 e Março de 2011. A análise efectuada revelou que o risco de contraparte e o risco de liquidez em ambos os mercados tiveram um impacto significativo na base, entre os CDS e os referidos spreads, e que os preços dos CDS tenderam a liderar as yield spreads das obrigações no período em análise.

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Vásquez, Camacho Claudia Elena. "Complicaciones otológicas de la rinitis alérgica según severidad en pacientes de 5 a 17 años. Instituto Nacional de Salud del Niño. Enero - diciembre 2014. Lima-Perú." Master's thesis, Universidad Nacional Mayor de San Marcos, 2015. https://hdl.handle.net/20.500.12672/4630.

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Objetivo: Identificar las principales complicaciones otológicas de la rinitis alérgica según severidad en niños de 5 a 17 años en el servicio de otorrinolaringología del Instituto Nacional de Salud del Niño. Diseño: Descriptivo, transversal. Población y muestra: Pacientes con diagnóstico de rinitis alérgica de 5 a 17 años que acudan al servicio de Otorrinolaringología del Instituto Nacional de Salud del Niño desde Enero a Diciembre del 2014. Criterios de Inclusión: Pacientes con diagnóstico de rinitis alérgica de 5 a 17 años que acudan al Servicio de Otorrinolaringología del Instituto Nacional de Salud del Niño de Enero a Diciembre del 2014, que acepten participar en el estudio. Criterios de exclusión: Pacientes con diagnóstico clínico - radiológico de hipertrofia adenoidea, rinosinusitis aguda infecciosa durante los últimos tres meses, cardiopatías, neuropatías, algún síndrome, patología auditiva congénita, diagnóstico de hipoacusia neurosensorial uni o bilateral, pacientes con cuadro infeccioso respiratorio, asma no controlada y/o pacientes cuyo padre o tutor no desee que participen en el estudio. Material y Métodos: Se aplicó una encuesta y realizaron exámenes de ayuda diagnóstica otológicos (Timpanometrías, Audiometrías, Otomicroscopías) a los pacientes. Para el análisis estadístico se utilizaron medidas estadísticas descriptivas incluyendo porcentajes, proporciones y tasas. Resultados y discusión: Las complicaciones encontradas en los 52 pacientes evaluados fueron timpanoesclerosis (55,85) , otitis media con efusión (25,0), disfunción tubárica (3,8%), hipoacusia conductiva leve (55,85), opacidad y engrosamiento de la membrana timpánica (28,8%). Conclusiones: La Rinitis alérgica presenta complicaciones auditivas diversas no solo la otitis media con efusión como se menciona clásicamente. Palabras clave: Rinitis Alérgica, complicaciones otológicas, niños.
--- Objective: Identify the main otological complications of allergic rhinitis according to severity in children from 5-17 years old, who were attended in the service of Otolaryngology of Instituto Nacional de Salud del Niño. Design: Descriptive, cross-sectional Population and sample: Patients with a diagnosis of allergic rhinitis from 5 to 17 years old attended in the service of Otolaryngology of Instituto Nacional de Salud del Niño, from January to December 2014. Inclusion criteria: Patients diagnosed with allergic rhinitis from 5 to 17 years old, attended in the service of Otolaryngology, of Instituto Nacional de Salud del Niño, from January to December 2014, agreed to participate in the study. Exclusion criteria: Patients with clinical-radiological diagnosis of adenoid hypertrophy, infectious acute rhinosinusitis during the last three months, heart disease, neuropathy, any syndrome, congenital hearing pathology, diagnosis of unilateral or bilateral sensorineural hearing loss, patients with respiratory infections condition, asthma not controlled and /or patients whose parent or guardian does not want to participate in the study. Material and Methods: A survey was applied and otological diagnostic aid tests carried out (tympanometry, audiometry andotomicroscopy) to all patients. Statistical analysis included percentages, rates and proportions. Results and discussion: Complications found in the 52 patients evaluated were: Tympanosclerosis (55,8%), otitis media with effusion(25,0%), tubal dysfunction (3,8%), mild conductive hearing loss(55.85) and opacity and thickening of the tympanic membrane (28,8%). Conclusions: Allergic rhinitis presents various comorbidities hearing not only otitis media with effusion as classically described. Keywords: Allergic Rhinitis, otologic complications children
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48

French, David Joseph. "Investigations of a novel pile and anchorage concept." Thesis, Imperial College London, 1990. http://hdl.handle.net/10044/1/46305.

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49

Riley, C. C. A. "Effect of pretreatment of the state and reactivity of alumina-supported platinum-iridium catalysts." Thesis, Imperial College London, 1987. http://hdl.handle.net/10044/1/46303.

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50

Fueyo, Norberto. "Two-fluid models of turbulence for axi-symmetrical jets and sprays." Thesis, Imperial College London, 1990. http://hdl.handle.net/10044/1/46307.

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