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1
Pang, Xiaolei. "Heat and salinity transport across the Indonesian Archipelago over the last 270,000 years : new insights into the orbital and millennial dynamics of the Indonesian Throughflow and the Intertropical Convergence Zone." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLS365.
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Ce travail avait pour but de reconstituer l'évolution de la température et du δ¹⁸O des eaux de surface et des eaux de la thermocline dans la Warmpool indo-pacifique (IPWP) en combinant la thermométrie Mg / Ca et la mesure des isotopes stables de l'oxygène sur des foraminifères planctoniques de surface et de sub-surface prélevés dans des carottes de sédiments situées dans l'océan Indien tropical oriental. Ce travail a permis de ré-évaluer les effets des différentes méthodes de nettoyage et de la dissolution in situ sur la thermométrie Mg/Ca des foraminifères planctoniques, mettant en évidence la nécessité de corrections différentes suivant les espèces. L’évolution de l’IPWP au cours des 270 000 dernières années a été reconstituée. Les résultats indiquent que le δ¹⁸O des eaux de surface reflètent principalement l'advection latérale plutôt que l'historique des précipitations régionales, et suggèrent que l'hydrologie de surface IPWP est contrôlée par la migration latitudinale de la zone de convergence intertropicale aux échelles de temps orbitales mais aussi en réponse aux événements climatiques abrupts de l'hémisphère nord (eg. événements de Heinrich). Les variations de salinité de surface sont étroitement corrélées aux changements d’export vers l’Atlantique au niveau du Courant des Aiguilles (Sud de l’Afrique). Puis, les changements dans le transport des eaux de la thermocline issues de l’ITF vers l'océan Indien ont été étudiés. Les résultats montrent que le transport était plus faible pendant les glaciations (ie. MIS 6 et 4-2) que pendant les périodes interglaciaires (ie. MIS 7, MIS 5 et Holocène) et exerçaient une influence significative sur les changements de la température de la thermocline dans l'Océan Indien<br>This work aimed at reconstructing the late Quaternary evolution of surface and thermocline temperature and ocean surface water δ¹⁸O in the Indo-Pacific Warm Pool by combining Mg/Ca-thermometry and stable oxygen isotope analyses on surface and thermocline-dwelling planktonic foraminifers retrieved from sediment cores in the eastern tropical Indian Ocean. This study allowed to re-evaluate the effects of different cleaning methods and in-situ dissolution on the Mg-thermometry of planktonic foraminifers, evidencing the need for species-dependent corrections. Then, the IPWP evolution over the last 270,000 years has been explored. Results indicate that surface water δ¹⁸O chiefly reflects lateral advection rather than local precipitation history, and suggest that surface IPWP hydrology is controlled by the latitudinal migration of the Intertropical Convergence Zone at orbital timescale as well as during abrupt northern hemisphere climatic events (i.e. Heinrich events). Ocean surface salinity in the IPWP and Agulhas leakage region varied synchronously, implying their teleconnection through oceanic and atmospheric circulation. Moreover, changes in the transport of thermocline water to the Indian Ocean by the Indonesian Throughflow (ITF) have been reconstructed. Results show that thermocline water transport was weaker during glacials (i.e. MIS 6 and 4-2) than during interglacials (MIS 7, MIS 5 and Holocene), and exerted significant influence on Indian Ocean TWT change
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Wurtzel, Jennifer Beth. "Reading the Rain in Rocks: A late deglacial speleothem record from Sumatra, Indonesia." Phd thesis, Canberra, ACT : The Australian National University, 2017. http://hdl.handle.net/1885/143191.
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The Intertropical Convergence Zone (ITCZ) is a key component of
Hadley cell circulation. In the Indo-Pacific Warm Pool (IPWP)
region, the seasonal migration of the ITCZ defines much of the
precipitation variability over the Maritime Continent. The
seasonal migration of the ITCZ in this region is also closely
related to the Australasian monsoon, which brings critical
rainfall to Asia and Indo-Australia, cumulatively home to
approximately 40% of the global population. On interannual
timescales, rainfall in the IPWP region is also connected with
zonal climate variability of the El Niño-Southern Oscillation
and Indian Ocean Dipole systems. Understanding the IPWP’s
climate sensitivities is therefore crucial to the improvement of
long-term prediction of rainfall and drought.
Abrupt changes in Atlantic Meridional Overturning Circulation
(AMOC) are known to have affected the strength of the Asian
monsoon during glacial and deglacial climate states. However,
there is still much uncertainty around the hydroclimate response
of the IPWP region to abrupt climate changes in the North
Atlantic. Speleothems are powerful archives for paleoclimatic
reconstruction, providing absolute-dated and often
highly-resolved records of past climate. Several speleothem
oxygen-isotope (δ18O) records from the central IPWP and Asian
summer monsoon regions provide decadally-resolved time-series of
past rainfall variability since the last glacial period. Many
studies have suggested a southward shift in the ITCZ in the IPWP
region during phases of reduced AMOC. However, existing IPWP
proxies have seasonal biases and conflicting responses, making it
difficult to determine the true extent of North Atlantic forcing
in this climatically important region. In Chapter 2 of this
thesis, I present a precisely-dated, high-resolution record of
eastern Indian Ocean hydroclimate variability spanning the last
16 ky (thousand years) from δ18O measurements in an
aragonite-calcite speleothem from central Sumatra. This
represents the western-most speleothem record from the IPWP
region and fills an important spatial gap in terrestrial
hydroclimate, facilitating assessment of Warm Pool sensitivity at
its lateral extent.
Petrographic and geochemical analysis reveals that the sample is
principally composed of aragonite but is punctuated by intervals
of primary calcite growth. In addition to mineralogical
determination by Raman spectroscopy, trace element analysis by
laser ablation ICP-MS reveals strongly antiphased behaviour
between magnesium and strontium attributed to the strong
preference of those elements for the calcite and aragonite
lattices, respectively. In Chapter 4, this relationship is
utilized to develop a quantitative correction for the stable
isotope fractionation offset between the two calcium carbonate
polymorphs identified in the speleothem and to quantify
partitioning coefficients for those elements into aragonite.
The corrected δ18O record demonstrates a clear deglacial
structure that includes 18O enrichment during the Younger Dryas
(~12.9-11.7 ka; thousand years ago) and 18O depletion during the
Bølling-Allerød (~14.7-12.9 ka), similar to the pattern seen in
speleothems of the Asian and Indian monsoon realms. In contrast,
other speleothem records from the IPWP show slight increases or
no change in δ18O during the Younger Dryas. To better interpret
the spatial pattern of speleothem δ18O change during the Younger
Dryas, Chapter 3 uses back-trajectory air parcel analysis to
identify primary moisture source regions and seasonal
distributions of moisture to IPWP speleothem sites. This
information is evaluated alongside modelled GISS ModelE-R vapour
source distributions to evaluate how moisture sources may have
changed during simulated hosing events analogous to the Younger
Dryas.
Chapter 4 considers the environmental controls that could account
for the mineralogy of the Sumatran speleothem sample. Shifts
between aragonite and calcite phases in the speleothem are partly
driven by environmental variability, with aragonite associated
with drier phases like the Younger Dryas and calcite generally
associated with increased detrital material. However, these
changes are more likely to be related to cave hydrology and
filtration rates than directly reflective of rainfall amounts.
Together, this research establishes a robust basis for
interpreting the climatic history retained in the 16 ky
speleothem δ18O record for Tangga Cave and provides context
relative to other speleothem records from the Indo-Pacific Warm
Pool region. This work demonstrates the extended reach of North
Atlantic abrupt forcing into the eastern tropical Indian Ocean,
supporting this conclusion with systematic analysis of the modern
hydroclimate system through use of isotope enabled climate models
and back-trajectory air parcel analysis.
3
Kukla, Michal. "Ray-tracing s knihovnou IPP." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2010. http://www.nusl.cz/ntk/nusl-237265.
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Master thesis is dealing with design and implementation of ray-tracing and path-tracing using IPP library. Theoretical part discusses current trends in acceleration of selected algorithms and also possibilities of parallelization. Design of ray-tracing and path-tracing algorithm and form of parallelization are described in proposal. This part also discusses implementation of adaptive sampling and importance sampling with Monte Carlo method to accelerate path-tracing algorithm. Next part is dealing with particular steps in implementation of selected rendering methods regarding IPP library. Implementation of network interface using Boost library is also discussed. At the end, implemented methods are subjected to performance and quality test. Final product of this thesis is server aplication capable of handling multiple connections which provides visualisation and client application which implements ray-tracing and path-tracing.
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Carter, Steven Michael. "Implementation and analysis of the IP measurement protocol (IPMP)." Master's thesis, Mississippi State : Mississippi State University, 2001. http://library.msstate.edu/etd/show.asp?etd=etd-11152001-090121.
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Echeverrigaray, Sérgio Graniero. "Processamento reativo de nanocompósitos iPP-POSS." reponame:Repositório Institucional da UCS, 2009. https://repositorio.ucs.br/handle/11338/1028.
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Os modos de interação de silsesquioxano poliédrico oligomérico (POSS) de gaiolas fechadas com distintos grupos funcionais foram avaliados na nanoestruturação de polipropileno isotático (iPP) via processamento reativo. Analisaram-se POSS com grupos substituintes isobutila, alila e vinila em concentrações de 0,5, 1, 2 e 5%m misturados a iPP fundido utilizando peróxido de dicumila (DCP) como iniciador. Na caracterização dos nanocompósitos foram utilizadas diversas técnicas. A morfologia foi avaliada através de cromatografia por exclusão de tamanho, espectroscopia de infravermelho com transformada de Fourier, microscopia de transmissão e difração de raios X. O comportamento viscoelástico dos materiais no estado fundido foi medido por reologia oscilatória e no estado sólido por análises dinâmico-mecânicas. As transições térmicas foram levantadas tanto por análises dinâmico-mecânicas como por calorimetria diferencial de varredura. Modificações morfológicas e viscoelásticas importantes foram observadas para os nanocompósitos em dependência do tipo e teor de POSS empregado. A adição do Octaisobutil-POSS (OI) sugere ação estabilizante radicalar e lubrificante para este POSS. Os efeitos da incorporação do Alilisobutil-POSS (AL) indicam que este atuou como agente plastificante em função da concentração. Com Octavinil-POSS (OV) os nanocompósitos parecem adquirir estrutura ramificada ou interligada em dependência da concentração. A ativação radicalar promovida pelo DCP mostrou-se fundamental na enxertia de alguns POSS. Assim, a forma e intensidade das interações entre nanocargas e matriz foram definidas pelos grupos funcionais e concentração dos POSS. Alterações observadas na morfologia, propriedades térmicas e viscoelásticas são resultantes dessas formas e graus de interação. Deste modo, foi possível propor mecanismos de interação e arranjos morfológicos entre iPP, DCP e POSS pela avaliação do conjunto de resultados obtidos.<br>Submitted by Ana Guimarães Pereira (agpereir@ucs.br) on 2015-10-06T16:44:04Z
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Dissertacao Sergio Graniero Echeverrigaray.pdf: 3289598 bytes, checksum: f804be75d287c3fd55eeb0690f47dfab (MD5)<br>Made available in DSpace on 2015-10-06T16:44:04Z (GMT). No. of bitstreams: 1
Dissertacao Sergio Graniero Echeverrigaray.pdf: 3289598 bytes, checksum: f804be75d287c3fd55eeb0690f47dfab (MD5)<br>The interaction modes of polyhedral oligomeric silsesquioxane (POSS) of closed cages with distinct functional groups were evaluated on isotactic polypropylene (iPP) nanostructuration via reactive processing. POSS were analyzed with isobutyl, allyl and vinyl substituent groups in concentrations of 0.5, 1, 2 and 5m% mixed with melting iPP using dicumil peroxide (DCP) as initializer. Several techniques were used to characterize the nanocomposites. The morphology was evaluated through size exclusion chromatography, Fourier transformed infrared spectroscopy, transmission electron microscopy and X-ray diffraction. The samples viscoelastic behavior in melting state was measured by oscillatory rheometry and in solid state by dynamic mechanical analysis. The thermal transitions were obtained through dynamic mechanical analysis and differential scanning calorimetry. Important morphology and viscoelastic modifications were observed in nanocomposites by dependency on the type and content of POSS used. The addition of OctaIsobutyl-POSS (OI) suggests lubricant and radicalar stabilizing action for this POSS. The AllylIsobutyl-POSS (AL) incorporation effects indicate that this one acted as plasticizing agent in function of concentration. With OctaVinyl-POSS (OV), the nanocomposites seem to acquire ramified or interlinked structure in dependency on concentration. The radicalar activation promoted by DCP was decisive in the grafting efficiency for some POSS. Therefore, the mode and the interaction intensity between nanoparticles and polymeric matrix were defined by functional groups and POSS concentration. Changes observed in morphology, thermal and viscoelastic properties as in solid state as in melting state are results of these modes and interaction degrees. It was possible to propose interaction mechanisms and morphology arrangements among iPP, DCP and POSS by evaluation of the obtained results as a whole.
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Hatano, Hiroyuki, Hiraku Okada, Takaya Yamazato, and Masaaki Katayama. "Performance Analysis of UWB Impulse Radar Using Parallel IPCP Receiver." IEEE, 2004. http://hdl.handle.net/2237/7758.
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Frey, Nicolette. "Interprofessional Practice (IPP): from Text to Context." Thesis, Griffith University, 2016. http://hdl.handle.net/10072/367261.
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There is a significant gap between the theorising of interprofessional practice (IPP) and the existence of IPP in community healthcare teams who provide services to people with severe mental illness (SMI). This study aims to clarify the concept of IPP both in the literature and in self-identified teams focused on improving the physical health of people with SMI in Queensland. It is widely acknowledged that the physical health of people with SMI is poor and their healthcare needs remain unmet. The reasons for their poor health outcomes are multiple and complex, and as the complexities of their healthcare needs increase, so too does their reliance on the healthcare system. However, the healthcare system is also complex with multiple problems, including a lack of continuity, fragmentation of services, and shortages in workforce and skills.
In response to this complex situation, scholars and policymakers repeatedly call for the integration of care through multidisciplinary healthcare teams that practise in interprofessional ways. The challenges to the implementation of IPP are many, and include professional educational differences, a paucity of opportunities to learn together, and competition for limited resources. The community mental healthcare team is one place where an interprofessional approach is thought to be critical, especially to deliver services to those with multiple complex needs created by SMI and comorbidities. People with complex needs rely on multiple healthcare providers who are required to operate with continuity across disciplinary and organisational boundaries.<br>Thesis (PhD Doctorate)<br>Doctor of Philosophy (PhD)<br>School of Human Services and Social Work<br>Griffith Health<br>Full Text
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Schmid, Tanja. "West Germanic IPP constructions : an optimality theoretic approach /." [S.l. : s.n.], 2002. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB10316326.
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Koleszar, Thomas W. "The generation of IPDP micropulsations, with special attention to frequency shift mechanisms." Thesis, University of British Columbia, 1988. http://hdl.handle.net/2429/29132.
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Short period geomagnetic micropulsations termed IPDPs (Intervals of Pulsations of Diminishing Period) are investigated using ground station data, geosynchronous satellite magnetograms, and the Kp and Dst geomagnetic indices. A model for the generation of IPDPs is described, and consideration is given to three mechanisms which could be responsible for the IPDP frequency rise: the inward motion, azimuthal drift, and increasing background magnetic field mechanisms. A simplified IPDP generation model containing the first two of these mechanisms is tested by computer simulation. Results from this simulation indicate the possibility of significant source region inward motion without actual plasmapause displacement, and the possibility of eastward developing IPDPs. Using amplitude variations along a north-south line of ground stations, two methods, each applicable under different ionospheric propagation conditions, are developed for quantitatively determining the inward motion of the IPDP source region. A system for qualitatively determining the potential influence of the increasing background field mechanism on an IPDP using the Dst index and geosynchronous satellite magnetograms is also formulated. Lastly, a technique for the assessment of the effects of the azimuthal drift mechanism, in conjunction with the inward motion mechanism, is developed. This technique assumes that only these two mechanisms are operating. In addition to addressing the frequency shift mechanisms, it provides estimates of the injection boundary position and the magnitude of any (ring current created) magnetic field depression in the IPDP source region. The frequency rises of two IPDPs are analyzed in detail using these methods. In both cases, the inward motion effect is the dominant factor in producing the frequency rise, with the increasing background field mechanism having no significant effect. The azimuthal drift mechanism is a secondary factor in creating one event's frequency rise, and actually suppresses the frequency rise of the other event. The computer simulation calculations also generally show the inward motion mechanism to be the dominant effect in producing IPDP frequency rises. Longitudinal variations within an IPDP event are also examined. The results of this examination are consistent with the IPDP generation model used here, which includes showing significant variations between stations spaced comparatively closely in longitude.<br>Science, Faculty of<br>Earth, Ocean and Atmospheric Sciences, Department of<br>Graduate
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Eriksson, Tommy. "Interner och Personlighet: Personlighetsdragens diskrepans i förhållande till ”The Big Five” (IPIP) : En studie bland långtidsdömda män inom svensk kriminalvård." Thesis, Linnaeus University, School of Education, Psychology and Sport Science, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-8732.
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<p>Syftet med föreliggande studie var att studera huruvida intagna på en störrekriminalvårdsanstalt (klass A) i Mellansverige, skiljer sig i personlighetsdragen Samvetsgrannhet, Vänlighet, Extraversion, Emotionell Stabilitet och Öppenhet ijämförelse med två kontrollgrupper. Tidigare forskning har visat att kriminella personer ligger lägre i skalorna (faktorerna) som mäter Samvetsgrannhet och Vänlighet, i jämförelse med ostraffade individer (t.ex., Miller & Lynam, 2001). Den primära hypotesen var följaktligen att söka diskrepans mellan just Samvetsgrannhet och Vänlighet i enlighet med tidigare empiri. Studien genomfördes med ett självskattningsformulär som stödjer sig på en svensk översättning från Goldbergs (1992) International Personality Item Pool (IPIP)beträffande grundläggande personlighetskaraktärer. Studien utgjordes av intagna(n = 46) och två kontrollgrupper bestående av studenter (n = 32) samt vaktpersonal (n = 45) vid en klass A anstalt i Sverige. Studien visade att det fanns signifikanta skillnader i förhållande till kontrollgrupperna och gruppen interner i personlighetsdraget Vänlighet (p < 0,001). Emellertid var resultatet i faktorn Samvetsgrannhet oväntat, av den orsaken att internerna skattade signifikant högre (p < 0,001) på skalan i jämförelse med kontrollgruppenbestående av studenter. Resultaten i stort, är i linje med tidigare studier, med reservation gällande Samvetsgrannhet. Därtill kan man vara i behov av att utveckla mätinstruments (IPIP) item gällande faktorn Samvetsgrannhet, så dessa är mer anpassande efter undersökt population (interner).</p>
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Dordic, Tatjana. "Effective Inter-Professional Practice: Exploring Perceptions Across Stakeholders and Contexts." Thesis, Griffith University, 2015. http://hdl.handle.net/10072/368151.
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The aim of the current research was to examine the gap between the theoretical versus applied effectiveness of inter-professional practice (IPP). Existing research suggests that inter-professional practice models of care increase the effectiveness, efficiency, and co-ordination of patient care, and improve teamwork, collaboration, and patient outcomes. However, in practice IPP met these objectives with mixed success (D’Amour et al., 2005; Zwarenstein et al., 2009; Carey et al., 2010). A definitional limitation was also noted; persistent problems with terminology (specifically, many inter-related, inconsistently used definitions) has created challenges for conducting and consolidating research in this area (Heatley & Kruske, 2011).In order to further understand the theory to practice gap, the current research involved three studies which explored health professionals’, management’s and patients’ perceptions of the definition and enactment of inter-professional practice.
A grounded theory methodology was used to examine these stakeholders' perceptions of inter-professional practice as it allowed for a process-centred approach to understanding the phenomena. As the literature indicated that existing theories offered overly simplistic, inputs to outputs based approaches to exploring inter-professional practice, it was clear that there existed a need to explore the processes involved in enacting effective inter-professional practice (D’Amour et al., 2005; Reeves, 2010). Therefore, the first study in the current research explored how health professionals and management (N: 21) working in a paediatrics unit define and perceive effective inter-professional practice. A semi-structured interview was conducted with each participant and the data was subsequently coded using grounded theory methodology.<br>Thesis (PhD Doctorate)<br>Doctor of Philosophy in Organisational Psychology (PhD OrgPsych)<br>School of Applied Psychology<br>Griffith Health<br>Full Text
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Forsman, Oscar, and Rebecca Heisler. "Samband mellan specifika personlighetsdrag och inkomst." Thesis, Högskolan Väst, Avdelningen för psykologi, pedagogik och sociologi, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-14071.
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Idag finns det endast begränsad forskning om sambanden mellan inkomstutfall och specifika personlighetsdrag, därför ville vi undersöka detta vidare. Syftet med studien var sålunda att undersöka sambanden mellan inkomstutfall och specifika personlighetsdrag inom Big Five. Uttrycket ”fasett” användes i studien och avsåg specifika personlighetsdrag som tillsammans bildade bredare benämningar på olika personlighetsdrag. Personlighetsdragen delades in i fem bredare benämningar (faktorer) och 30 specifika personlighetsdrag, varav 11 lyftes fram i denna studie. Sambanden studerades på fasettnivå, samtidigt som det kontrollerades för ålder, kön och antal år i nuvarande yrket. Studien bestod av en enkät med två delar, dels med 16 självskattade frågor kring inkomst dels med 120 självskattade påståenden kring personlighet, IPIP NEO - 120. Data bearbetades med en korrelationsanalys och en multipel regressionsanalys. I studien testades fyra hypoteser, där tre av fyra kunde få stöd av resultatet (N=131, ålder 18–61 år, 68% kvinnor och 32% män). Anxiety (ångest), assertiveness (bestämdhet) och achievement-striving (prestationsinriktad) var de tre fasetter som fann stöd i resultatet. Modesty (blygsamhet) fann inte stöd. Av alla fasetter så visade adventurousness (äventyrlig) (β = .24, p = .02) och achievement-striving (prestationsinriktad) (β = .25, p = .01) störst prediktiv (förutsägande) förmåga tillsammans med kontrollvariabeln ålder (β = .52, p < .001). Resultaten från studien kan vara till hjälp genom att ge en bild av personlighetens generella prediktiva förmåga för inkomst samt vikten av samspelet mellan yrkeskvalifikationer och personlighet. Kunskap om hur personlighet samvarierar med inkomst kan bidra till utveckling inom områden som rekrytering, personalvägledning och lönesättning<br>Today there is limited research on the relationship between specific personality traits and income. The purpose of the study was to investigate the relationship between income and specific personality traits within the Big Five. The term "facet" was used in the study referring to the 30 specific personality traits, 11 of which are highlighted in this study, which together form five broader factors. The correlations were studied at facet level, whilst controlling for age, sex and number of years in the current profession. The study consisted of a two-part questionnaire, partly with 16 selfassessed questions about income, partly with 120 self-assessed claims about personality (IPIP NEO-120). Data was processed using a correlation analysis and a multiple regression analysis. 4 hypotheses were tested, where 3 out of 4 could be supported by the result (N = 131, age 18-61 years, 68% women and 32% men). Anxiety, assertiveness and achievement-striving were the 3 facets that found support in the result, while Modesty did not find support. Of all facets, adventurousness (β = .24, p = .02) and achievement-striving (β = .25, p = .01) showed the greatest predictive ability along with the control variable age (β = .52 , p <.001). The results from the study can be helpful by showing the predictive ability of personality on income as well as the relation between professional qualifications and personality. Knowledge about how personality correlates with income can contribute to development in areas such as recruitment, personnel development and salary settlements.
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McBride, Nadine LeBarron. "Differential Item Functioning on the International Personality Item Pool's Neuroticism Scale." Diss., Virginia Tech, 2008. http://hdl.handle.net/10919/29999.
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As use of the public-domain International Personality Item Pool (IPIP) scales has grown significantly over the past decade (Goldberg, Johnson, Eber, Hogan, Ashton, Cloninger, & Gough, 2006) research on the psychometric properties of the items and scales have become increasingly important. This research study examines the IPIP scale constructed to measure the Five Factor Model (FFM) domain of Neuroticism (as measured by the NEO-PI-R) for occurrences of differential functioning at both the item and test level by gender and three age ranges using the DFIT framework (Raju, van der Linden, & Fleer, 1993) This study found six items that displayed differential item functioning by gender and three items that displayed differential item functioning by age. No differential functioning at the test level was found. Items demonstrating DIF and implications for potential scale revision are discussed.<br>Ph. D.
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Chang, Wan-Yin. "The Predictive Accuracy of Conscientiousness when Responses are Dissimulated: Does Self-Consistency Matter?" Thesis, Virginia Tech, 2004. http://hdl.handle.net/10919/9960.
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The present study used a laboratory setting to explore the criterion-related validity of non-cognitive measures as related to personnel selection. The focal study investigated psychological processes resulting from situational causes of motivation to distort item responses. In particular, I investigated whether differences in the motivation to distort item responses interacted with self-consistency in the prediction of performance on a clerical task. Findings suggested that despite range restriction and the existence of faking behavior, a positive correlation between conscientiousness and performance exists. Variation of selection ratio (SR) and monetary incentives successfully produced faking behaviors, and the existence of faking behaviors was found in selection setting. Results partially supported the proposed hypothesis that there are positive and negative effects of faking behaviors. Implications of the present study were further discussed.<br>Master of Science
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Gorugantula, Srikanth V. L. "A GPS-IPW Based Methodology for Forecasting Heavy Rain Events." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/10145.
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The mountainous western Virginia is the source of the headwater streams for the New, the Roanoke, and the James rivers. The region is prone to flash flooding, typically the result of localized precipitation. Fortunately, within the region, there is an efficient system of instruments for real-time data gathering with IFLOWS (Integrated Flood Observing and Warning System) gages, WSR-88D Doppler radar, and high precision GPS (Global Positioning System) receiver. The focus of this research is to combine the measurements from these various sensors in an algorithmic framework to determine the flash flood magnitude. It has been found that the trend in the GPS signals serves as a precursor for rain events with a lead-time of 30 minutes to 2 hours. The methodology proposed herein takes advantage of this lead-time as the trigger to initiate alert related calculations. It is shown here that the sum of the rates of change of total cloud water, water vapor contents and logarithmic profiles of partial pressure of dry air and temperature in an atmospheric column is equal to the rain rate. The total water content is measurable as the profiles of integrated precipitable water (IPW) from the GPS, the vertically integrated liquid (VIL) from the radar (representing different phases of the atmospheric water) and the pressure and temperature profiles are available. An example problem is presented illustrating the involving the calculations.<br>Master of Science
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Костенко, Аліна Юріївна. "Combining Polyethylene and Polypropylene: Enhanced Performance with PE/IPP Multiblock Polymers." Thesis, Київський національний університет технологій та дизайну, 2017. https://er.knutd.edu.ua/handle/123456789/7399.
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Waiyavutti, Chakadee. "Development and validation of Thai versions of Big Five measures from the international personality item pool." Diss., University of Iowa, 2019. https://ir.uiowa.edu/etd/7040.
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The Big-Five is the most popular personality taxonomy used to characterize fundamental personality traits and their individual differences. This model has been well replicated across English speaking samples, several other languages, and different item formats, thereby begging the question of its universality. However, two key issues have challenged the validity of the cultural group comparisons using Big Five measures of personality. The first is methodology for translation and adaptation, and the second is construct equivalence across cultures. The International Personality Item Pool (IPIP; Goldberg, 1992) has been used to create several non-commercial versions of Big Five measures (IPIP-BFMs), with a common set of 50 items typically translated into other languages and used for cross-cultural comparisons. Although this 50-item version is available in more than 25 languages, little is known about how translation and adaptation was executed, and only a few researchers have reported psychometric characteristics of scores from the translated measures. The consistent lack of such evidence to support the use of the standard American set of the 50-items in other languages gave rise to the idea of developing a customized 50-item IPIP that would better fit the Thai culture.
The goal of this study was to develop and thoroughly validate scores from a Thai version of the 50-item IPIP Big Five measure of personality using a sample of 1,878 students from high schools in Thailand. One hundred items from the IPIP website were translated into the Thai language following guidelines developed by the International Test Commission (ITC, 2017). When psychometric properties for the original 50-item IPIP-BFM were investigated in Thai and American samples, weaknesses in model fit were detected. Using the more complete set of 100 items from the IPIP website, 50 items more suitable to the Thai culture were then selected to create a customized Thai 50-item IPIP. Scores from the customized 50-item IPIP-BFM were further examined for psychometric properties across Thai and American samples. The customized Thai 50-item IPIP-BFM produced good internal subscale reliability coefficients (> 0.80), a clear five-factor structure across Thai and American samples, measurement invariance across subgroups within the overall Thai sample, similar patterns of convergent and discriminant validity with another Big Five measure, and statistically significant incremental validity over standardized achievement and aptitude test scores in predicting end of high school grade-point average. Collectively, these results demonstrate that the customized 50-item IPIP-BFM produces psychometrically sound scores for measuring the Big Five with Thai adolescents. Procedures used in the study also provide a template for developing and validating new personality instruments for use with native speakers of other languages.
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Ferenc, Marcell. "GPS observation of geophysical deformations induced by non tidal loading." Thesis, Paris, CNAM, 2014. http://www.theses.fr/2014CNAM0977/document.
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La redistribution temporelle et spatiale des masses environnementales déforment la surface de la Terre. Ces déformations sont observables par des techniques de géodésie spatiale telles que le GNSS. Depuis que les produits d'orbite et d'horloge très précis de l'IGS sont disponibles, que des algorithmes sophistiqués ont été développés, l'iPPP a ouvert une nouvelle ère pour l'analyse du GNSS et pour son application dans les études géophysiques. Ce travail fait partie des premières études pour analyser les différents effets de surcharge, en utilisant des séries temporelles de positionnement, en particulier avec le logiciel GINS-PC et les nouveaux produits d'orbite et d'horloge REPRO2 du GRGS (GR2). Nous visons à exploiter les positions sub-diurnes d'iPPP pour étudier divers effets de déformation de la Terre à différentes échelles de temps: sub-diurne à saisonniers et annuels. Notre objectif est de contribuer à la validation des modèles géophysiques, à l'observation des différents phénomènes non-maréaux, mais aussi de présenter la performance du mode iPPP et du logiciel GINS-PC. Ce dernier est un outil puissant pour les applications géodynamiques, qui permet d'étudier l'influence des effets de surcharge sur l'interprétation géodésique des séries temporelles. Après un aperçu des principales déformations de la surface de la Terre, nous présentons les techniques de géodésie qui ont déjà démontré leur potentiel dans l'analyse de déformation, en particulier dans les études de déformation de surcharge. Nous présentons ensuite la technique de GNSS et le mode de traitement iPPP que nous utilisons pour l'analyse des données. Nous montrons ensuite les résultats de deux études régionales. La première analyse étudie l'influence des effets de surcharge sur la détermination des vitesses tectoniques dans la chaîne des Pyrénées à partir de campagnes GNSS espacées dans le temps. Le deuxième cas d'étude tente de suivre l'évolution spatiale et temporelle des déformations induites par un événement de tempête extrême, à savoir la tempête Xynthia qui a eu lieu en France en 2010. Cette étude tente également d'identifier la réponse dynamique de l'océan pour le système de basse pression atmosphérique se déplaçant rapidement en utilisant des séries temporelles sub-diurnes. Enfin, nous allons vers une étude globale qui pose les bases pour de futures recherches<br>The temporal and spatial redistribution of the environmental masses deform the surface of the Earth. These deformations are observable by space geodetic techniques such as GNSS. Since highly accurate IGS satellite and clock data are available and sophisticated algorithms have been developped, the integer fixed ambiguity Precise Point Positioning (iPPP) method opened a new era for the Global Navigation Satellite System (GNSS) analysis and its application in geophysical studies. This work is among the first studies to investigate the different loading effects using iPPP time series, particularly using the GINS-PC software and the new, reprocessed REPRO2 orbit and clock products of GRGS (GR2). We aim to exploit the sub-daily iPPP time series to study various Earth deformation effects at different time scales, from sub-daily to seasonal and annual periods. Our goal is to contribute to the validation of geophysical models, to the observation of the various non-tidal phenomena, as well as the presentation of the performance of the iPPP mode and the GINS-PC package that is a powerful tool for geodynamical applications, and to investigate the influence of the loading effects on geodetic time series interpretation. After an overview of the main deformations of the Earth's surface, we present the geodetic techniques that already demonstrated their potential in deformation analysis, in particular in loading deformation studies. We then review the GNSS technique and the iPPP processing mode as it was our choice for the data analysis. We then demonstrate two regional studies. The first one investigates the influence of the loading effects on GNSS campaign to determine tectonic velocities in the Pyrenees mountain chain. The second case study attempts to track the spatial and temporal evolution of an extreme storm event, the Xynthia windstorm that occured in France, in 2010. This study also tries to identify the ocean's response to the fast moving low pressure system using sub-daily iPPP time series. Finally we go towards a global study which gives base for future research
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Fischer, Manfred M., Jürgen Essletzbichler, Helmut Gassler, and Gerhard Trichtl. "Telephone Communication Patterns in Austria. A Comparison of the IPFP based Graph-Theoretic and the lntramax Approaches." WU Vienna University of Economics and Business, 1992. http://epub.wu.ac.at/4211/1/WSG_DP_2292.pdf.
Full textAbstract:
Two alternative methodological approaches (the IPFP based and the intramax
procedures) to the problem of pattern identification in spatial interaction data
are compared and evaluated in this paper. After a general discussion of the
major characteristics and shortcomings of these methodologies, the paper
presents the findings of a case study relying on telecommunication data
measured by the Austrian PTT in 1991, in terms of erlangs. The results clearly
illustrate the superiority of the intramax approach in the context of mediumsized
and relatively centralised flow systems. (authors' abstract)<br>Series: Discussion Papers of the Institute for Economic Geography and GIScience
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Giraneza, Martial. "High voltage direct current (HVDC) in applications for distributed independent power providers (IPP)." Thesis, Cape Peninsula University of Technology, 2013. http://hdl.handle.net/20.500.11838/1077.
Full textAbstract:
Thesis submitted in fulfillment of the requirements for the degree
Master of Technology: Electrical Engineering
in the Faculty of Engineering
at the Cape Peninsula University of Technology
2013<br>The development of power electronics did remove most of technical limitations that high voltage direct current (HVDC) used to have. HVDC, now, is mostly used for the transmission of bulk power over long distances and for the interconnection of asynchronous grid. Along with the development of the HVDC, the growth of power demand also increased beyond the utilities capacities. Besides the on-going increasing of power demand, the reforms in electricity market have led to the liberalization and the incorporation of Independent power providers in power system operation. Regulations and rules have been established by regulating authority for grid integration of Independent power providers. With the expected increase of penetration level of those new independent power providers, result of economic reason and actual green energy trend, best method of integration of those new power plants are required.
In this research HVDC technology, namely VSC-HVDC is used as interface for connecting independent power providers units to the grid. VSC-HVDC has various advantages such as short-circuit contribution and independent control of active and reactive power. VSC-HVDC advantages are used for a safe integration of IPPs and make them participate to grid stabilization. MATLAB/Simulink simulations of different grid connected, through VSC-HVDC system, IPPs technologies models are performed.
For each IPP technology model, system model performances are studied and dynamics responses during the disturbance are analyzed in MATLAB/ Simulink program. The simulation results show that the model satisfy the standard imposed by the regulating authority in terms of power quality and grid support. Also the results show the effect of the VSC-HVDC in preventing faults propagation from grid to integrated IPPs units.
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Geiger, Franziska Elisabeth [Verfasser], and Ulrich [Akademischer Betreuer] Wetterauer. "Prospektive Evaluation peniler Applikation von Kollagenase bei Patienten mit Induratio penis plastica (IPP)." Freiburg : Universität, 2020. http://d-nb.info/1218464232/34.
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Malmkvist, My, and Kristin Witalisson. "Neuroticism i relation till motivation, självkänsla samt affektivitet." Thesis, Linnéuniversitetet, Institutionen för psykologi (PSY), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-31932.
Full textAbstract:
Tidigare forskning har visat att det finns ett samband mellan personlighetsdraget neuroticism och yttre motivation, a-motivation, låg självkänsla samt negativ affekt. Syftet med studien var att öka förståelsen för neuroticism som personlighetsdrag utifrån individernas motivationstyp, självkänsla samt individernas affektiva tillstånd. Studien undersökte även reliabiliteten hos instrumentet Mini-IPIP som har undersökt personlighetsdrag inom Big-five-teorin. Syftet testades med hjälp av fyra självskattningstester. Dessa var Mini-IPIP, Situational Motivation Scale (SIMS), Positive Affect and Negative Affect Scale (PANAS) samt Rosenbergs Self-esteem Scale (SES). I studien deltog N=110 deltagare i åldrarna 19-53 år. I avsikt att bättre förstå neuroticism och dess relation till motivation, självkänsla samt affekt genomfördes statistiska analyser såsom korrelation och regressionsanalys. Resultatet visade, med hjälp av en korrelation, att det fanns ett samband mellan negativ affekt och neuroticism som personlighetsdrag. Regressionsanalysen bekräftade samband mellan neuroticism som personlighetsdrag och motivationstyperna a-motivation samt yttre motivation. Dock kunde inget samband mellan neuroticisms och självkänsla bekräftas.
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Laird, Michelle. "Impact of Pretreatment Self-Perceived Quality of Life on Chronic Pain Patients." ScholarWorks, 2015. http://scholarworks.waldenu.edu/dissertations/1692.
Full textAbstract:
Researchers and practitioners have developed new treatment options for chronic pain management based on biopsychosocial models of pain known as interdisciplinary pain management programs (IPMP), which involve interdisciplinary care that integrates physical treatment with emotional, environmental, behavioral, and cognitive interventions. Despite literature documenting the effectiveness of IPMPs, patients find it difficult to obtain authorization for these programs from third party insurance payers. The purpose of this quantitative causal comparative study was to explore whether a patient's perceived quality of life after injury but prior to treatment will affect his or her success in an IPMP. This study was based in the theoretical foundations of the biopsychosocial model of pain as well as positive psychology. Regression analysis and a test of mean differences were used to analyze the data to determine if there was a statistically significant difference in the perceived success in an IPMP program between patients who were part of a workers' compensation program (n = 77) and those who were not (n = 60). None of the null hypotheses could be rejected. Quality of Life Index (QOLI) scores were not predictive of success in an IPMP. None of the QOLI 16 subscales were predictive of success in an IPMP. Additionally, there was no significant difference between patients who were on workers' compensation and those who were not. This study contributes to the knowledge gap regarding appropriate screening tools for admittance into an IPMP. The results of this study can be used by practitioners who are trying to get patients approved for an IPMP and by third party insurance payer when determining which patients would most benefit from attending an IPMP.
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Al-Shargabi, Asma Abdulghani Qassem. "A multilayer framework for quality of context in context-aware systems." Thesis, De Montfort University, 2015. http://hdl.handle.net/2086/11149.
Full textAbstract:
Context-aware systems use context information to decide what adaptation actions to perform in response to changes in their environment. Depending on applications, context information includes physical context (e.g. temperature and location), user context (e.g. user preferences and user activity), and ICT context (e.g. device capabilities and battery power). Sensors are the main mean of capturing context. Unfortunately, sensed context data are commonly prone to imperfection due to the technical limitations of sensors, their availability, dysfunction, and the highly dynamic nature of environment. Consequently, sensed context data might be imprecise, erroneous, conflicting, or simply missing. To limit the impact of context imperfection on the behavior of a context-aware system, a notion of Quality of Context (QoC) is used to measure quality of any information that is used as context information. Adaptation is performed only if the context data used in the decision-making has an appropriate quality level. This thesis conducts a novel framework for QoC in context-aware systems, which is called MCFQoC (Multilayered-Context Framework for Quality of Context). The main innovative features of our framework, MCFQoC, include: (1) a new definition that generalizes the notion of QoC to encompass sensed context as well as user profiled context; (2) a novel multilayer context model, that distinguishes between three context abstractions: context situation, context object, and context element in descending order. A context element represents a single value and many context elements can be compound into a context object. Many context objects in turn form a context situation; (3) a novel model of QoC parameters which extends the existing parameters with new quality parameter and explicitly distributes the quality parameters across the three layers of context abstraction; (4) a novel algorithm, RCCAR (Resolving Context Conflicts Using Association Rules), which has been developed to resolve conflicts in context data using the Association Rules (AR) technique; (5) a novel mechanism to define QoC policy by assigning weights to QoC parameters using a multi-criteria decision-making technique called Analytical Hierarchy Process (AHP); (6) and finally, a novel quality control algorithm called IPQP (Integrating Prediction with Quality of context Parameters for Context Quality Control) for handling context conflicts, context missing values, and context erroneous values. IPQP is extension of RCCAR. Our framework, MCFQoC, has been implemented in MatLab and evaluated using a case study of a flood forecast system. Results show that the framework is expressive and modular, thanks to the multilayer context model and also to the notion QoC policy which enables us to assign weights for QoC’s parameters depending on quality requirements of each specific application. This flexibility makes it easy to apply our approach to a wider type of context-aware applications. As a part of MCFQoC framework, IPQP algorithm has been successfully tested and evaluated for QoC control using a variety of scenarios. The algorithm RCCAR has been tested and evaluated either individually and as a part of MCFQoC framework with a significant performance concerning resolving context conflicts. In addition, RCCAR has achieved a good success comparing to traditional prediction methods such as moving average (MA), weighted moving average, exponential smoothing, doubled exponential smoothing, and autoregressive moving average (ARMA).
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Eklund, Jimmie, and Niclas Hultman. "Short Dark Triad : En begreppsvalidering av svensk översättning med femfaktormodellens IPIP-120 och Swedish universities Scales of Personality." Thesis, Högskolan Väst, Avdelningen för psykologi, pedagogik och organisationsstudier, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-9101.
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Dark triad är en kombination av mörka personlighetsdrag som består av subklinisk psykopati, subklinisk narcissism och machiavellism (Paulhus & Williams, 2002). Jones och Paulhus (2013), utvecklade Short Dark Triad (SD3), ett test som mäter dark triads personlighetsdrag. Den föreliggande studiens syfte var att validera en svensk version av SD3. Respondenterna svarade på nio enkäter som ingick i ett forskningsprojekt varav tre användes till denna studie. Respondenterna (N = 103) var mellan 19 och 64 år, och alla var aktiva i arbetslivet. Konvergent validering gjordes genom korrelationsanalyser som kontrollerade sambanden mellan de delar, i beprövade instrument, som mäter personlighetsdrag relaterade till begreppen subklinisk psykopati, subklinisk narcissism och machiavellism. Sambandsanalyserna gjordes mellan SD3 och IPIP-120 som mäter femfaktormodellens dimensioner, samt Swedish universities Scales of Personality (SSP) som grundar sig på biologiska markörer för olika psykiatriska tillstånd. Resultaten gick i huvudsak i linje med tidigare forskning (Furnham, Richards, Rangel, & Jones, 2014) med avseende på sambanden mellan femfaktormodellens dimensioner och SD3. En gemensam kärna i de tre personlighetsdragen i dark triad var ovänlighet, och ett viktigt resultat var de signifikanta negativa sambanden med femfaktordimensionen vänlighet. Den Svenska versionen av SD3 anses validerad.<br>Dark triad is a group of three dark personality scales consisting of subclinical psychopathy, subclinical narcissism and Machiavellianism (Paulhus & Williams. 2002). The Short Dark Triad (SD3), is the measuring tool and was developed by Jones and Paulhus (2013). The purpose of this thesis was to validate a Swedish translation of the SD3. This was done within an existing research project and included 103 respondents, aged 19-64 years, all being employed. They were assigned to respond to nine different surveys, three of them measuring psychopathy, narcissism and Machiavellianism-related scales. Convergent validation was done by correlation analysis with IPIP-120, measuring the personality of five factor model and Swedish universities Scales of Personality (SSP), measuring personality traits based on biological markers, and how well they measure the SD3. Our results generally confirm earlier research on studies between five factor models personality scales and SD3 (Furnham, Richards, Rangel, & Jones, 2014). One result of particular importance was the negative correlation with the Agreeableness Scale since it is a core for the dark triad personalities. Furthermore, our results followed the expected patterns in the correlations between dark triad personalities and the five factor model. The result of our thesis concludes that the Swedish translation of thPSKe SD3 test is to be considered valid.
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Howell, Larry Daniel II. "Characterization of IphP from Nostoc commune UTEX 584 and a Dual Specificity Protein Phosphatase from Anabaena PCC 7120." Diss., Virginia Tech, 1997. http://hdl.handle.net/10919/30344.
Full textAbstract:
Protein phosphorylation is utilized universally as a mechanism of signal transduction. However, the use of tyrosine phosphorylation by bacteria has been a matter of dispute. Conventional wisdom dictated that "prokaryotic phosphorylation" was typified by phosphorylation of histidine and aspartate residues of proteins, while "eukaryotic phosphorylation" was characterized by modification of serine, threonine, or tyrosine residues. Increasing numbers of reports have emerged challenging the traditional view of "prokaryotic" and "eukaryotic" phosphorlyation. One of the strongest links unifying prokaryotic and eukaryotic protein phosphorylation to date is IphP, a genomically-encoded dual-specificity protein phosphatase from the cyanobacterium Nostoc commune UTEX 584 bearing the active-site signature sequence of eukaryotic tyrosine-specific and dual-specificity protein phosphatases.
The catalytic properties and substrate specificity of IphP were examined in detail. The enzyme was able to discriminate among a variety of exogenous peptides and proteins. Kinetic studies revealed that IphP favors protein / peptide substrates over low molecular weight compounds.
Heparin effected IphP activity in a substrate-dependent manner. Enzyme activity toward casein (P-Ser) and MAP kinase (P-Thr/P-Tyr) was stimulated in the presence of the polyanion, whereas activity was inhibited by heparin toward other protein substrates. Both stimulation and inhibition by heparin were dose-dependent. The ability to stimulate IphP activity toward select substrates was attributed to the ability of heparin to recruit the enzyme and substrate to the same microenvironment.
To facilitate future genetic studies examining the role of tyrosine phosphorylation in cyanobacteria, we searched for evidence of protein tyrosine phosphorylation in Anabaena PCC 7120. In a collaborative effort with the laboratory of Dr. Potts, tyrosine phosphorylated proteins were identified in Anabaena utilizing several approaches, including comparative labelling with alpha- vs gamma-32P-ATP, phosphoamino acid analysis, and selective hydrolysis with a tyrosine specific protein phosphatase. Together, these data unequivocally demonstrate the presence of tyrosine-phosphorylated proteins in Anabaena PCC 7120.
Extracts of Anabaena PCC 7120 were examined for protein tyrosine phosphatase activity. An apparent PTP activity was detected, partially purified, and characterized. The protein phosphatase was ~38kDa by SDS-PAGE and sucrose density gradient centrifugation and displayed dual-specificity protein phosphatase (DSP) activity in vitro. The enzyme was localized to the periplasm and was thus assigned the title PAD, for Periplasmic Anabaena DSP. Periplasmic phosphoproteins of ~120 and 55 kDa that had been radiolabelled in vitro were dephosphorylated by partially purified PAD. PAD activity varied in vivo ~5-fold in a rhthymic, seemingly diurnal manner. Periplasmic proteins, including the 55kDa protein, were labelled in vivo and the degree of radiolabel incorporated into these proteins varied inversely with PAD activity.<br>Ph. D.
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NASCIMENTO, Samira Ruana Vidal do. "Implementação de uma montagem experimental em escala reduzida para análise da dispersão de boro em um pressurizador de um reator modular compacto e integral." Universidade Federal de Pernambuco, 2016. https://repositorio.ufpe.br/handle/123456789/17903.
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Previous issue date: 2016-02-25<br>CAPES<br>Os Small Modular Reactors, SMRs, são reatores modulares compactos variantes dos reatores de geração III+ que apresentam características atrativas, como a simplicidade, maior segurança e são economicamente competitivos. Atualmente, há muitos projetos de SMRs com características estruturais distintas, como potência, tipo de combustível e frequência de abastecimento. O SMR em estudo é um reator do tipo PWR (reator de água pressurizada) que possui o sistema integrado (iPWR). Esse sistema é caracterizado pela inclusão de todo o sistema primário dentro do vaso de pressão, incluindo o gerador de vapor e o pressurizador. Em um iPWR, o pressurizador está localizado no topo do vaso do reator; esta configuração envolve mudanças técnicas como, por exemplo, alteração no mecanismo de circulação adotado para a homogeneização das concentrações de Boro. Assim, o presente trabalho representa uma contribuição para a concepção de uma instalação experimental planejada para fornecer dados relevantes para estudar os fenômenos de homogeneização de Boro no pressurizador de um reator modular compacto. Para isso, foi montada uma instalação experimental com uma seção de teste em aço inoxidável com escala de 1:200, referente a ¼ do pressurizador de um iPWR. Trabalhos anteriores determinaram os principais parâmetros para a construção de um modelo em escala reduzida para análise de dispersão de Boro no pressurizador de um reator com a configuração integral. Esses parâmetros, como medidas dos orifícios e vazão de circulação, foram a base para a execução do projeto referente a montagem experimental. Além da seção de teste, a instalação experimental dispõe de duas bombas rotativas, 5 medidores de vazão e 3 tanques em aço inoxidável, com capacidades de, aproximadamente, 70, 143 e 216 litros. A montagem foi realizada de modo que a seção de teste fosse alimentada com água ou com uma solução com concentração diferente, representando cenários de boração ou deboração. Para determinar a concentração na entrada e na saída da seção de teste, foram realizadas coletas de amostras, a cada 10 minutos, durante os experimentos que representavam alguns cenários (boração/deboração). Utilizando um condutivímetro de bancada, a condutividade elétrica dessas amostras foi determinada e convertida em concentração do elemento traço utilizado. Após a montagem, com as devidas instalações, testes de operação e execução dos experimentos, foi possível comprovar a viabilidade de empregar a montagem experimental, de maneira confiável, para obter valores que possam analisar o fenômeno de homogeneização de Boro em um pressurizador de um reator modular compacto.<br>The Small Modular Reactors, SMRs, are compact variants modular reactors of generation III + reactors that feature attractive features such as simplicity, enhanced security and are economically competitive. Currently, there are many SMRs projects with distinct structural characteristics such as power, fuel type and supply frequency. The SMR in the study, is a PWR (pressurized water reactor) reactor type that integrated (iPWR). This system is characterized by the inclusion of the entire primary system inside the pressure vessel, including a steam generator and the pressurizer. In one iPWR, the pressurizer is located at the top of the reactor vessel; this configuration change involves techniques such as, for example, change in the movement mechanism adopted for the mixing of boron concentrations. The present work is a contribution to the design of an experimental installation designed to provide relevant data to study the boron homogenization phenomena pressurizer in a compact modular reactor. For this, we assembled an experimental installation with a test section in stainless steel with scale of 1:200, referring to ¼ of the pressurizer of a iPWR. Previous work has determined the key parameters for the construction of a small-scale model for analysis boron dispersion in a reactor pressurizer with the full configuration. These parameters, such as measures of circulation orifices and flow were the basis for the implementation of the design related to the experimental setup. In the test section, the experimental apparatus has two rotary pumps, 5 flow meters and 3 stainless steel tanks with capacities of approximately 70, 143 and 216 liters. The fitting was performed so that the test section was fed with water or a solution with different concentration, or boration scenarios representing deboration. To determine the concentration at the inlet and outlet of the test section, samples have been collected every 10 minutes during the experiments representing some scenarios (boration/deboration). Using a benchtop conductivity, the electrical conductivity of these samples was determined and converted to the concentration of the trace element used. After assembly, with the operation testing and execution of experiments, it was possible to prove the viability of using the experimental setup, reliably, for values that can analyze the boron homogenization phenomenon in a pressurizer of a compact modular reactor.
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Jia, Shilou, and Xi Zhou. "DELAY PERFORMANCE OF PR-CFDAMA MAC PROTOCOL VIA SATELLITE." International Foundation for Telemetering, 2003. http://hdl.handle.net/10150/606714.
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International Telemetering Conference Proceedings / October 20-23, 2003 / Riviera Hotel and Convention Center, Las Vegas, Nevada<br>A novel satellite multiple access scheme called PR-CFDAMA (Predictive Request-Combined Free/Demand Assignment Multiple Access) is proposed in this paper. The delay performances between PR-CFDAMA and R-CFDAMA (Round Robin-CFDAMA) scheme were compared by computer simulation. Simulations were carried out with the Interrupted Poisson Process (IPP) and Interrupted Fluid Process (IFP) traffic models. Simulation results demonstrate that comparing with R-CFDAMA scheme, the PR-CFDAMA scheme achieves a lower delay, meets a much lower delay constraint.
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羽多野, 裕之, 敬也 山里, 啓. 岡田 та 正昭 片山. "IPCPを複数段用いたUWB Impulse Radar受信機の特性評価". 電子情報通信学会, 2006. http://hdl.handle.net/2237/12717.
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Ernawati, Desak Ketut. "Medication safety in Indonesia: Expanding pharmacists’ role through Interprofessional Education (IPE) and Interprofessional Practice (IPP)." Thesis, Curtin University, 2015. http://hdl.handle.net/20.500.11937/2047.
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This study undertaken in Indonesia, examined how the pharmacist's role could be expanded into medication safety. It explored the feasibility of implementing interprofessional education as a means of fostering interprofessional practice. While also looking at pharmacy students' readiness to engage in interprofessional learning and graduates' perceptions of their preparedness to deliver patient care, a clinical pharmacy service pilot was also conducted to document need. Facilitators and barriers to education and practice change were also explored.
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Chen, Ziyue. "Generalizing Results from Randomized Trials to Target Population via Weighting Methods Using Propensity Score." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1503007759352248.
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Calhoun, McKenzie L., L. Brian Cross, D. Byrd, and L. Calhoun. "International Masterclass as a Catalyst to Expand Interprofessional Learning (IPL) and Interprofessional Practice (IPP) in Ireland." Digital Commons @ East Tennessee State University, 2018. https://dc.etsu.edu/etsu-works/6895.
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Jiang, Wen. "Maximum Codes with the Identifiable Parent Property." Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/14072.
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We study codes that have identifiable parent property. Such codes are called IPP codes. Research on IPP codes is motivated by design of
schemes that protect against piracy of digital products.
Construction and decoding of maximum IPP codes have been studied in rich literature. General bounds on F(n,q), the maximum size of IPP
codes of length n over an alphabet with q elements, have been obtained through the use of techniques from graph theory and combinatorial
design. Improved bounds on F(3,q) and F(4,q) are obtained. Probabilistic techniques are also used to prove the existence of certain IPP codes.
We prove a precise formula for F(3,q), construct maximum IPP codes with size F(3,q), and give an efficient decoding algorithm for such codes. The main techniques used in this thesis are from graph theory and nonlinear optimization. Our approach may be used to improve bounds on F(2k+1, q). For
example, we characterize the associated graphs of
maximum IPP codes of length 5, and obtain bounds on F(5,q).
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Saletti, Patrícia Grandizoli. "Caracterização da inibição por pré-pulso em primatas não-humanos (Sapajus spp.) e avaliação dos efeitos da dizocilpina e canabidiol na modulação do filtro sensório-motor." reponame:Repositório Institucional da UnB, 2015. http://repositorio.unb.br/handle/10482/19006.
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Tese (doutorado)—Universidade de Brasília, Instituto de Ciências Biológicas, Programa de Pós-Graduação em Biologia Animal, 2015.<br>Submitted by Raquel Viana (raquelviana@bce.unb.br) on 2015-10-29T18:00:03Z
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2015_PatríciaGrandizoliSaletti.pdf: 47057297 bytes, checksum: f3315f28ce8b31713e5d97266adc91b6 (MD5)<br>O reflexo de sobressalto acústico é uma resposta primitiva de defesa dos animais após um estímulo sonoro intenso e repentino. Essa resposta é inibida quando um estímulo de baixa intensidade é apresentado previamente. A inibição por pré-pulso (IPP) da reposta de sobressalto é uma maneira de mensurar o filtro sensório-motor, mecanismo utilizado para filtrar o excesso de informação do meio. O teste de IPP é muito utilizado de forma experimental para testar déficits no filtro sensório-motor em modelos animais. Alguns transtornos neurológicos humanos apresentam danos na resposta de IPP, como por exemplo a esquizofrenia, devido a déficits no funcionamento do filtro sensório-motor comuns em pacientes com esse transtorno. Algumas drogas podem ser utilizadas para gerar efeitos esquizotípicos, como antagonistas de receptores glutamatérgicos NMDA. Sabe-se que essas drogas causam déficits no teste de IPP em roedores. Com a validação de um protocolo experimental que envolve a resposta de IPP é possível realizar testes de substâncias que provocam efeitos esquizotípicos, bem como substâncias que apresentam características antipsicóticas. Geralmente os animais utilizados como modelos de esquizofrenia são roedores e poucos estudos tem sido realizados para avaliar o efeito de substâncias no teste de IPP em primatas nãohumanos. Assim, o presente trabalho teve como objetivo desenvolver um teste de IPP para ser utilizado em macacos-pregos (Sapajus spp.). Além disso, objetivou-se avaliar o papel do colículo superior na resposta de IPP e testar os efeitos de dois fármacos, a dizocilpina (MK-801) e o canabidiol na medida de IPP desses primatas. Para isso, esse trabalho foi dividido em dois estudos. O estudo 1 avaliou a resposta de IPP em oito macacos-pregos utilizando um protocolo experimental que mensura o movimento do corpo do animal. Após essa primeira análise, dois animais com lesão no colículo superior, dois animais submetidos à lesão fictícia e os oito macacos acima citados foram testados nesse protocolo para que fosse identificada alguma alteração na resposta de IPP. Os resultados do primeiro estudo mostraram que o gênero Sapajus segue o mesmo padrão de resposta de IPP que outros primatas não-humanos. Observamos que as intensidades de 115 dB e 80 dB foram suficientes para gerar sobressalto e inibir essa resposta, respectivamente. Além disso, observamos que o intervalo entre os dois estímulos apresentados que melhor inibiu a resposta de sobressalto foi o de 120 ms. Os animais com lesão no colículo superior apresentaram uma tendência a diminuição da IPP corroborando estudos realizados em roedores, que indicam participação dessa estrutura cerebral na via neural da IPP. O estudo 2 foi realizado para determinar os efeitos do MK 801 e do canabidiol na resposta de IPP em primatas não-humanos. Novamente, oito macacos-pregos foram submetidos ao teste após administrações das drogas. O MK-801 foi administrado em três diferentes doses (0,01; 0,02; 0,03 mg/kg) antes do teste de IPP. Após algumas semanas os animais foram submetidos ao teste após o tratamento com canabidiol também em três doses (15, 30, 60 mg/kg). Posteriormente, os animais receberam MK-801 por quatro semanas consecutivas e foram expostos ao teste de IPP. Na quarta semana, além do MK-801, os animais foram pré-tratados com canabidiol e submetidos ao teste de IPP. Os resultados do estudo 2 mostraram que a MK-801, na maior dose testada diminuiu a resposta de IPP nos macacos de forma aguda. Entretanto, ao contrário do que é observado em roedores, a administração repetida do MK-801, concomitantemente ao teste de IPP, gerou uma interação droga-treino que reverteu o efeito inicial gerado pelo MK-801. Devido a isso, não foi possível detectar efeito antipsicótico do canabidiol. Porém, corroborando estudos prévios realizados em roedores, o canabidiol isoladamente não alterou a resposta de IPP dos macacos-pregos. Concluímos assim, que animais do gênero Sapajus são bons modelos experimentais para o teste de IPP e que o MK-801 pode ser utilizado para gerar déficits de IPP de forma aguda nesses animais para avaliação de antipsicóticos. O processo de habituação observado nos animais indica que efeitos adversos do MK-801, como prejuízo no filtro sensório-motor, podem ser reduzidos pela tolerância e pela familiarização ao teste de IPP. Ademais foi possível identificar diferenças neurofarmacológicas entre roedores e primatas e a importância desses animais para pesquisas básicas e testes pré-clinicos. ______________________________________________________________________________________________ ABSTRACT<br>The acoustic startle reflex is a primitive defense response in animals that occurs after an intense and sudden acoustic stimulus. This response can be inhibited when a low stimulus is presented previously. The prepulse inhibition (PPI) of the startle response is a useful way to measure sensorimotor gating mechanisms. This mechanism protects against an excess of information. PPI test is widely used experimentally to test deficits in sensorimotor gating in animal models. PPI deficits are commonly observed in some human neurological disorders, such as schizophrenia, due to damage in sensorimotor gating caused by cognitive deficits. Some drugs can be used to induce schizophrenic-like effects, such as NMDA receptor antagonists. These drugs induce deficits in PPI response in rodents. Validation of an experimental protocol on PPI response makes it possible to perform tests on substances that cause schizophrenic-like effects, as well as compounds with antipsychotic properties. Studies usually employ rodents as experimental models of schizophrenia and only few studies have been performed with nonhuman primates to test pharmacological effects in the PPI paradigm. Thus, the present study aimed to develop a PPI test to be applied in capuchin monkeys (Sapajus spp.) to evaluate the role of the superior colliculus in PPI response and test the effects of two drugs in these animals: dizocilpine (MK-801) and cannabidiol. Therefore, two studies were conducted. The first study characterized the PPI response of eight capuchin monkeys using a whole-body prepulse inhibition protocol. After that, two animals with superior colliculus (SC) lesion, two SC sham lesion and the eight monkeys cited above were tested to evaluate the role of this brain structure in the PPI response. Results showed that Sapajus follows the same PPI pattern as other nonhuman primates. The intensities of 115 dB and 80 dB were sufficient to induce a startle response and to inhibit this response, respectively. We also observed that 120 ms was the best interstimuli interval for PPI. Animals with superior colliculus lesion showed a downward tendency of PPI response, corroborating studies in rodents that indicate a participation of this brain structure in the neural pathway of PPI. The second study was conducted to determine the effects of MK-801 and cannabidiol on nonhuman primates’ PPI response. MK-801 was administered in three different doses (0.01; 0.02; 0.03 mg/kg) before the PPI assay. After a few weeks, the animals were submitted to PPI test after receiving cannabidiol also in three doses (15, 30, 60 mg/kg). Subsequently, animals received MK-801 during four consecutive weeks and were then exposed to the PPI test. On the fourth week, subjects were pre-treated with cannabidiol before the MK-801 administration and then the PPI test was performed. Results from the second study demonstrated that MK-801, at the dose of 0.03 mg/kg, decreased the PPI response of an acute administration. However, repeated administration of MK-801 throughout the PPI test induced a drug-training interaction that reversed the effects of MK- 801 on PPI disruption, unlike reports in rodents. As such it was not possible to detect an antipsychotic effect for cannabidiol. However, cannabidiol alone did not change the PPI response in the capuchin monkeys, corroborating previous studies in rodents. Therefore, we conclude that capuchin monkeys are useful experimental models to test PPI response. Moreover, MK-801 can be used to induce PPI deficits in this species. The habituation process observed in our study indicates that the adverse effects of MK-801, as sensorimotor gating impairments, may be reduced by MK-801 tolerance effect such as after familiarization with the PPI test. Furthermore, our results underscore neuropharmacological differences between rodents and nonhuman primates and the importance of primates in basic research and preclinical assays.
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Jaffuel, Aurore. "Résolution de mélanges complexes d'oligosaccharides sulfatés par chromatographie 2D et spectrométrie de masse : application aux héparines thérapeutiques." Thesis, Lyon, 2016. http://www.theses.fr/2016LYSE1150.
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Diamond, Laurie K. "Antecedents and consequences of emotional dissonance understanding the relationships among personality, emotional dissonance, job satisfaction, intention to quit and job performance /." [Tampa, Fla.] : University of South Florida, 2005. http://purl.fcla.edu/usf/dc/et/SFE0001044.
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Yuksel, Turan. "Partial Encryption Of Video For Communication And Storage." Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/1097963/index.pdf.
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In this study, a new method is proposed to protect video data through partial encryption. Unlike previous methods, the bit rate of the encrypted portion can be controlled. In order to accomplish this task, a simple model for the time to break
the partial encryption by a chipertext-only attack is defined. Then, the encrypted bit budget distribution strategy maximizing the time subject to the bitrate constraint is found. An algorithm to estimate the model parameters is constructed and it isthen implemented over an MPEG-4 natural video codec together with the bit budget distribution strategy. The encoder is tested with various image sequences and the
output is analyzed.
In addition to the developed video encryption method, a file format is defined to store encryption related side information.
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Alexander, Zoë. "The international volunteer experience in South Africa : an investigation into the impact on the tourist." Thesis, Bucks New University, 2012. http://bucks.collections.crest.ac.uk/9994/.
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This thesis explores the impact of volunteer tourism on the international tourist engaging in volunteer work in South Africa. A staged methodological design is adopted in this research. The first stage provides conceptual clarification of the term volunteer tourism, using grounded theory. Then a quasi-experimental study was carried out to collect data from volunteer tourists undertaking community and wildlife (including conservation) projects in South Africa. It consists of a standardised web-based personality inventory (IPIP-NEO) completed prior to, post, and one to two years following the volunteer vacation to measure personality changes in 15 core traits. A control group was used to enhance the validity of the scientific method. Thereafter, personal interviews were conducted to gain insight into the volunteering experience and any resulting changes in the volunteers’ day-to-day lives. This study’s findings point to significant changes in seven traits; some of these traits have not been previously identified by the literature and therefore broaden our understanding of the impact on the tourist. Additionally, while confirming some of the changes found in other studies, the findings of this study also point to some significant contrasts. Many of the changes identified were evident in the volunteer’s daily lives through their ‘personal circumstances’, ‘behaviour’, ‘emotions’, ‘confidence’, ‘values’, ‘knowledge or skills’ and ‘attitudes’. The experiences which the volunteers attributed to their changes were: active, involved, responsible, participatory, immersive and interactive, and whether they met volunteers’ expectations; influenced by: age, gender, project type and length of stay. The findings address a number of shortcomings in the volunteer tourism literature by providing statistical evidence of change; a better understanding of how change appears in participants’ everyday lives; and identifies some additional elements that influence change in the visitor, adding to knowledge of Engagement Theory. These findings can therefore contribute theoretically; and practically to tourism marketing, program design and volunteer satisfaction.
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Serrano, Orlando Manuel esteves. "A avaliação de desempenho dos trabalhadores da administração pública. O caso do Instituto Politécnico de Portalegre (IPP)." Master's thesis, Universidade de Évora, 2010. http://hdl.handle.net/10174/14221.
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O SIADAP afigura-se como um novo paradigma de avaliação de desempenho, estratégico para a gestão das organizações do sector público que importa investigar, porquanto tem sido um enorme desafio para os serviços que o têm implementado ou que ainda não o conseguiram fazer.
Este trabalho pretendeu avaliar as opiniões de avaliadores e avaliados, relativamente ao sistema e à sua implementação numa Instituição de Ensino Superior Politécnico, em 2009. As questões subjectividade, importância, avaliação e satisfação foram particularmente analisadas.
A abordagem metodológica escolhida foi a de Estudo de Caso. Seguimos as etapas de investigação preconizadas por Yin (1994), tendo-se procedido a uma entrevista a avaliadores para ajudar na definição dos questionários utilizados para recolha posterior das opiniões de avaliadores e avaliados.
Na perspectiva destes actores, o sistema implementado apresenta uma avaliação globalmente positiva e com oportunidades de melhoria, embora com pontos fracos e constrangimentos que não podem ser institucionalmente descurados; ABSTRACT: SIADAP is shaped as a new paradigm of performance appraisal, strategic in the management of organizations in the public sector. It should be subject to investigation given that it has been an enormous challenge for those services which have adopted it or who have not yet managed to do so.
This work intended to evaluate the opinions of its actors in relation to the system and its implementation carried out in a Polytechnic Institute in 2009. Issues such as subjectivity, importance, evaluation, and satisfaction were carefully analysed data.
The chosen methodology was the case study. We followed the investigational stages recommended by Yin (1994), taking the format of an interview with the appraisers, to assist in defining the questionnaires object of the descriptive evaluation.
In the perspective of these actors the implemented system presents an overall positive assessment and opportunities for improvement. However, constraints and weak points noted cannot be neglected.
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Mahmood, Paracha Ayyaz. "Design and fabrication of Mems-based, vibration powered energy harvesting device using electrostatic transduction." Phd thesis, Université Paris-Est, 2009. http://tel.archives-ouvertes.fr/tel-00584339.
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Due to size effects, the microtechnologies that are used to manufacture micro-sensors, allowed a drastic reduction of electrical power consumption. This feature contributed to the emergence of the concept of autonomous sensors, which have the ability to take the energy needed for their operation from the environment where they are located. Among the different energy sources, our choice was made on ambient mechanical vibrations. The electromechanical conversion is done within a transducer integrated with a micromechanical structure. In this work, we have designed and fabricated an electrostatic transducer based on silicon-glass technology, which required the development of a dedicated deep etching process. The device was tested experimentally and we have obtained a conversion of mechanical energy into electrical energy, corresponding to a power of 61 nW, with a device whose surface area is only 66 mm². This device is the first miniaturized silicon converter based on electrostatic transduction which does not use an electret
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Fromondi, Iosif. "In-Situ Techniques as Applied to the Study of Surface Dynamics." Case Western Reserve University School of Graduate Studies / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=case1179874444.
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Mevel, Françoise. "La dialectique intime privée publique : ipp : mise en scène dans la maison : mise en sens en thérapie familiale psychanalytique." Bordeaux 2, 2008. http://www.theses.fr/2008BOR21558.
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Tout sujet, se constitue une vie intrapsychique intime, à partir d'un contexte familial privé, lui-même soumis à un espace public. Ces modalités de subjectivations intime, privée, publique, se présentent comme les instances d'un processus, sans idée de hiérarchie, en interdépendance, que nous appelons la dialectique IPP. Nous sommes amenés, en tant que thérapeute familial, à recevoir des familles où les liens tissés mettent à mal la vie intime de chacun, la vie privée de la famille, et engagent certaines relations avec l'espace public, maintenant, entre les membres de la famille, un lien d'adhésivité, dans la violence. Ces familles souffrent d'impossibles à être ensemble mais aussi de terreurs à se séparer : " ni avec toi, ni sans toi " signent leur détresse et les engagent dans des confusions pathogènes des instances " intime/privée/publique ". Trois thérapies familiales psychanalytiques vont mettre au travail ce "ni avec toi, ni sans toi " en faisant la part de la subjectivation par le détour de l'autre. Elle propose, en effet, de se mettre, ensemble, dans un espace transitionnel, appartenant au champ public, en vue d'une re-création des espaces intimes, et d'une réélaboration de la vie privée. Ainsi, la direction de la cure de la thérapie familliale psychanalytique, a, pour postulat, d'engager la famille, à repenser le sens de sa dialectique IPP. Les effets de ce travail se mesureront dans le rapport que la famille entretient avec son habitat. En effet, à la croiseé de l'intime, du privé et du public, la maison est une mise en scène de la dialectique IPP. Ses agencements, circulations, délimitations, traduisent les implications et transactions qui font " tenir ensemble " une famille<br>Any individual creates for him/herself an intimate life out of a private family environment which is itself submitted to a public space. These " subjectivation " processes are presented as the agencies of an interdependent process, without any idea of hierarchy, called the IPP dialectic. As a family therapist, I have received families where ties are questioning the intimate life of every member, the private life of the family and are committing into the public space among family members, an " adhesivity " tie through violence. These families experience a double suffering : they are both unable to be together and fearful to separate : " neither with you or not without you " reveal their despair and commit them into pathogenic confusions of the intimate/private/public spaces. Three Psychoanalytic family therapies will work out " neither with you nor without you ", building on a " subjectivation " process through the other. Indeed, it implies getting together within a transitional space which belongs to the public space in order to recreate intimate spaces and re-develop a private life. Thus, leading a family psychoanalystic therapy is based on a family's commitment to re-creating its IPP dialectic. The impact will be perceptible within the relationship that the have tied with their home space. Indeed, a family's home stages the IPP dialectic, precisely where the intimate, private and public spaces meet. The way a home is laid out, the way you move around in it and its different spaces are defined reveal the unconscious transactions and commitments making a family "hold together"
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Feron, Gilles. "Localisation des activités IPP-isomérase et prényltransférases dans les cellules de Vitis vinifera cv Muscat de Frontignan cultivées in vitro." Toulouse, INPT, 1991. http://www.theses.fr/1991INPT014A.
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L'isopentenyl pyrophosphate isomerase et les prenyltransferases, enzymes clefs de la voie de biosynthese des terpenoides sont etudiees dans le but d'identifier les facteurs responsables de l'absence d'accumulation de monoterpenes chez des suspensions cellulaires de vitis vinifera cv muscat de frontignan. Ces enzymes peuvent etre impliquees dans la voie de biosynthese des terpenoides mais aussi des steroides. La localisation subcellulaire de ces enzymes est realisee a partir de protoplastes de raisin muscat obtenus par digestion enzymatique de la paroi cellulaire. Les resultats demontrent que les activites ipp-isomerase et prenyltransferases sont localisees surtout dans le cytosol, mais aussi dans une fraction membranaire obtenue apres purification d'un culot brut sur gradient de saccharose ou de percoll. L'examen approfondi de cette fraction a l'aide d'enzymes marqueurs des mitochondries, des microbodies et des plastes, revele une origine plastidiale. Des observations de cette fraction en microscopie electronique montrent que les plastes purifies sur gradient de percoll sont intactes. De plus des incubations de la fraction soluble et de la fraction plastidiale en presence de (1-#1#4c)ipp demontrent la presence de deux activites prenyltransferases: une geranyl pyrophosphate synthetase dans le plaste et une farnesyl pyrophosphate synthetase dans le cytosol. La compartimentation specifique de ces enzymes peut etre une explication pour la perte de production de monoterpenes observee chez des cellules cultivees in vitro. Le probleme de la sequestration de la gpp synthetase au sein des plastes, lie a la permeabilite des organites pour les substrats de l'enzyme est aborde
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Mew, Timothy. "An economic and social review of the preferred bidders under the small projects IPP procurement programme: a cross-case synthesis." Master's thesis, Faculty of Engineering and the Built Environment, 2019. http://hdl.handle.net/11427/30981.
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The literature on the economic and social impacts of infrastructure projects, such as renewable energy projects, largely point towards these projects having positive direct and indirect benefits for the local economy, especially if the ownership, components, construction, and operation are sourced from local enterprises. The recipients of project expenditure, the location of their employees and to whom the profits accrue are essentially the factors that determine how much local economic benefit these renewable energy projects have. With this in mind, the Renewable Energy Independent Power Producers Procurement Programme (REIPPPP) was structured in such a way that gave additional weighting to socioeconomic criteria such as job creation, local content, local ownership, Socioeconomic Development (SED) funding, and Enterprise Development (ED) funding among others. The structuring of the REIPPPP in this way highlights the overarching policy objectives in the energy sector and how these renewable energy projects have been identified by the government as a means to achieve these socioeconomic objectives. The REIPPPP formed the foundation upon which the Small Projects Independent Power Producers Procurement Programme (SP-IPPPP) was based. The SP-IPPPP was created by the government to further localise the renewable energy industry in South Africa and give local developers and suppliers better access into this emerging sector. This research sought to compare Small Projects under the SP-IPPPP with projects of the same technology under the REIPPPP (in bid window 3 and 4) in a cross-case synthesis. Using an embedded, multiple-case study design the commitments made by Preferred Bidders in each programme were compiled and contrasted. Following this, the results for the Small Projects were scaled-up to identify how justified the additional costs associated with the Small Projects are, given their co-benefits to the South African economy. The findings suggest that the impact of the Small Projects on the overall price of renewable energy from the chosen cases would be negligible; and therefore, the co-benefits from these projects could justify this price premium. Even when scaled-up to the 400 MW allocated to Small Projects, the impact on the overall cost of renewables from BW3 and BW4 could be argued to have been justified by the co-benefits afforded by these Small Projects. The impact on the electricity price from projects in the scenario and BW3 and BW4 was not substantial; however, the job creation, local (national) expenditure, and community (within 50km of the project site) benefit were substantial, which may vi incentivise policy makers to go ahead with the procurement in order to meet these soci oeconomic objectives. In terms of the best technology option for the SP-IPPPP, the findings suggest that solar PV and biomass (in particular) are better suited to this capacity and offer improved socioeconomic benefits without a drastic price premium. Wind energy on the other hand, appeared to have a notable price premium over the Large Projects without proportionate socioeconomic benefits and would perhaps be better left to the REIPPPP.
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KATO, Ryo, and Dan HU. "Auditor Size as a Measure for Audit Quality : A Japanese Study." 名古屋大学大学院経済学研究科附属国際経済政策研究センター, 2014. http://hdl.handle.net/2237/20455.
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Katsigianni, Georgia. "Hybridation multi-GNSS pour le positionnement précis." Thesis, Toulouse 3, 2019. http://www.theses.fr/2019TOU30209.
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Les systèmes GNSS sont largement utilisés pour les applications de positionnement précis en géosciences, et en particulier en géodésie spatiale. Jusqu'à présent, les mesures du système GPS sont principalement utilisées seules pour des applications scientifiques. L'arrivée de la constellation européenne Galileo, rend possible les études sur ce nouveau système pour vérifier ses capacités et ses possibilités seul ou combiné avec GPS dans un traitement Multi-GNSS. Le centre d'analyse CNES/CLS de l'IGS calcule de manière hebdomadaire les produits GNSS (GPS, GLONASS et Galileo) ; ces produits sont utilisés pour les applications scientifiques de positionnements précis. Un moyen d'obtenir la meilleure précision possible consiste à résoudre les ambiguïtés entières, inconnues, des mesures de phase. Jusqu'à présent, le centre d'analyse CNES/CLS effectue une résolution d'ambiguïté sur les observations GPS en utilisant la méthode zéro-différence et fournit les orbites et les horloges précises des satellites avec des ambiguïtés de phase fixées. L'objectif de ce travail est d'implémenter et valider si la méthode zéro-différence peut également être appliquée au système Galileo. Celle-ci comprend deux étapes. La première est la résolution des ambiguïtés de la combinaison Wide-Lane ; il est prouvé que les biais des satellites Galileo Wide-Lane sont stables sur de longues périodes et homogènes pour les différents types de récepteurs. Ces résultats ont permis de résoudre les biais Wide-Lane avec un taux de réussite proche de 100%. La deuxième étape de la méthode de zéro-différence est la résolution des ambiguïtés Narrow-Lane. Cette étape a été mise en œuvre pour le système Galileo dans un traitement de détermination précise de l'orbite multi-GNSS (avec les données GPS). Le pourcentage de succès de Galileo en matière de résolution des ambiguïtés atteint environ 93%, ce qui est similaire au système GPS. La propriété entière des horloges de phase Galileo permettant d'utiliser ces calculs au niveau utilisateur est démontrée. Les recouvrements d'orbite et " le Satellite Laser Ranging " utilisés pour valider les orbites obtenues ont montré une amélioration d'environ 50% des RMS3D (d'environ 7 cm à 3,5 cm) principalement dans les directions normales et tangentielles. Les résultats de ces travaux ont pu être appliqués aux produits du CA IGS CNES/CLS qui a commencé la livraison des produits " entiers " Galileo (orbites précises horloges et biais Wide-Lane satellites).[...]<br>GNSS are widely used for precise positioning applications of geosciences and especially space geodesy. So far, mainly the existing GPS was extensively used for scientific applications. With the arrival of the new European Galileo system it became imperative to include the new system in the studies and check the new capabilities that it will bring as a system alone and as combined together with the others in a Multi-GNSS processing. The CNES/CLS analysis center of the IGS is weekly calculating GNSS (GPS, GLONASS and Galileo) products that can be taken from any kind of user to perform precise positioning. A way to achieve the best accuracy possible is to resolve the unknown integer ambiguities of the phase measurements. Up until now, the CNES/CLS was performing ambiguity resolution to the GPS system using the zero-difference method. In this way they are able to deliver precise satellite orbits and precise clock products with phase fixed ambiguities. The goal of this work was to implement and validate if the method can be also applied for the Galileo system. The method applied from the CNES/CLS is consisting of two further steps. The first one is the resolution of the Wide-Lane ambiguities. The Galileo Wide-Lane satellite biases have been proven to be stable over long periods of time. In addition, there is homogeneity in the way they are observed from different types of receivers. These findings were used and the Wide-Lane biases were successfully resolved with nearly 100% success rate percentage. The second step of zero-difference method is the Narrow-Lane ambiguity resolution. This step was executed for the Galileo system together with the GPS system in a Multi-GNSS Precise Orbit Determination processing. Galileo ambiguity fixing success percentage is around 93%, nearly similar to the one of the GPS system. The integer property of the Galileo phase clocks is demonstrated. Both orbit overlaps and orbit validation using SLR validation methods showed that ambiguity resolution improves mainly in the normal and the along track direction. Galileo orbit overlaps in 3D RMS showed an improvement of around 50%, from around 7 cm to 3.5 cm. The results of this work were used by the CNES/CLS IGS AC that has announced the delivery of weekly Galileo precise orbits, clocks and Wide-Lane satellite biases. A new method is also introduced on how to compare ambiguity resolution results for a common overlapping period. This method is also used to speculate the agreement and the disagreement between two different daily solutions. [...]
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Rochanakul, Penying. "Fingerprinting codes and separating hash families." Thesis, Royal Holloway, University of London, 2013. http://repository.royalholloway.ac.uk/items/464834d6-82c2-e1d2-e15f-92cf228d9704/7/.
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The thesis examines two related combinatorial objects, namely fingerprinting codes and separating hash families. Fingerprinting codes are combinatorial objects that have been studied for more than 15 years due to their applications in digital data copyright protection and their combinatorial interest. Four well-known types of fingerprinting codes are studied in this thesis; traceability, identifiable parent property, secure frameproof and frameproof. Each type of code is named after the security properties it guarantees. However, the power of these four types of fingerprinting codes is limited by a certain condition. The first known attempt to go beyond that came out in the concept of two-level traceability codes, introduced by Anthapadmanabhan and Barg (2009). This thesis extends their work to the other three types of fingerprinting codes, so in this thesis four types of two-level fingerprinting codes are defined. In addition, the relationships between the different types of codes are studied. We propose some first explicit non-trivial con- structions for two-level fingerprinting codes and provide some bounds on the size of these codes. Separating hash families were introduced by Stinson, van Trung, and Wei as a tool for creating an explicit construction for frameproof codes in 1998. In this thesis, we state a new definition of separating hash families, and mainly focus on improving previously known bounds for separating hash families in some special cases that related to fingerprinting codes. We improve upper bounds on the size of frameproof and secure frameproof codes under the language of separating hash families.
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Panoui, Anastasia. "Wide-sense fingerprinting codes and honeycomb arrays." Thesis, Royal Holloway, University of London, 2012. http://repository.royalholloway.ac.uk/items/0069d024-bc20-0d25-c1ab-ce87655766f0/8/.
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Fuksa, Tomáš. "Paralelizace výpočtů pro zpracování obrazu." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-219371.
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This work deals with parallel computing on modern processors - multi-core CPU and GPU. The goal is to learn about computing on this devices suitable for parallelization, define their advantages and disadvantages, test their properties in examples and select appropriate tools to implement a library for parallel image processing. This library is going to be used for the vanishing point estimation in the path finding mobile robot.
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Winter, Jessica L. "The Big Five Personality Characteristics of World of Warcraft Players." Thesis, University of North Texas, 2009. https://digital.library.unt.edu/ark:/67531/metadc9910/.
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This study is a comparative analysis of the personality characteristics of a sample of World of Warcraft players (n = 147) and a large normative sample (n = 20,993). The 120-item International Personality Item Pool, based on the five factor model, is used. Independent t-tests were conducted and statistical significance was found for some factors; however, the effect sizes were small, indicating a limited practical difference between the two groups.