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Marriott, Helen Maria. "Pulmonary hypertension : susceptibility and treatment in rat models." Thesis, University of Sheffield, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.246988.
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Silva, Renato de Sousa e. "Estudo do comportamento dinâmico de membranas retangulares hiperelásticas." Universidade Federal de Goiás, 2015. http://repositorio.bc.ufg.br/tede/handle/tede/4809.
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Previous issue date: 2015-06-12<br>Fundação de Amparo à Pesquisa do Estado de Goiás - FAPEG<br>Structural elements with large deformation capacity as hyperelastic membranes are gaining
prominence in several engineering branches and have applications in biomechanics, thus the
study of the dynamic behavior of hyperelastic structures is very important to minimize effects
as the loss of the stability and undesirable vibrations. In this paper the elasticity theory for
large deformations in the development of membrane theory, in order to investigate the linear
and nonlinear dynamic behavior of hyperelastic membrane is used. A rectangular membrane
composed of an elastomeric material, isotropic, homogeneous, incompressible and consisting
of neo-Hookeano, Mooney-Rivlin and Yeoh models is considered. To model the membrane,
the energy and work of external forces are used together with the application of the Hamilton
on the Lagrange function. The Galerkin method is applied to obtain a discretized system of
nonlinear Partial Differential Equations (PDE) and the Runge-Kutta method of 4th order is
used to obtain its time response. Finally, the Brute Force and Continuation methods are
applied to investigate the nonlinear dynamic behavior of the membrane. A parametric analysis
is carried out looking to evaluate the influence of the material, geometry and initial tensions
on the natural frequencies of the membrane. It is noted that increasing the size of a tensioned
membrane, it is also increased the natural frequency for a given amplitude, and increasing the
strength of a pre-tensioned membrane, the smaller the value of the frequency in relation to a
range. Small differences are perceived in the behavior of the membrane for the three
constitutive models of material, which are calibrated to represent the same material.
Moreover, the main bifurcations of the analyzed membranes are of cyclic bending type,
known as saddle-node bifurcation.<br>Elementos estruturais com grande capacidade de deformação como membranas hiperelásticas
vêm ganhando destaque em diversas áreas da engenharia e têm várias aplicações na
biomecânica, assim, o estudo do comportamento dinâmico de estruturas hiperelásticas é de
grande importância visando minimizar os efeitos, como à perda de estabilidade e vibrações
indesejáveis. No presente trabalho é utilizada a teoria da elasticidade para grandes
deformações no desenvolvimento da teoria de membranas com o objetivo de investigar o
comportamento dinâmico linear e não linear de membranas hiperelásticas. Considera-se a
membrana retangular composta por um material elastomérico, isotrópico, homogêneo,
incompressível e descrito pelos modelos constitutivos de neo-Hookeano, Mooney-Rivlin e
Yeoh. Para obter as equações de equilíbrio estático e dinâmico da estrutura são utilizadas as
energias e trabalhos atuantes, bem como o princípio de Hamilton aplicado na função de
Lagrange. O Método de Galerkin é utilizado para discretizar as Equações Diferenciais
Parciais (EDP) em um sistema de Equações Diferenciais Ordinárias (EDO). Para resolver esse
sistema, utiliza-se o Método de Runge-Kutta de quarta ordem e utiliza-se o Método da Força
Bruta e o Método da Continuação para investigar o comportamento dinâmico da membrana. É
realizada uma análise paramétrica visando avaliar a influência do material e da geometria da
membrana nas frequências naturais e nas tensões inicias. Constata-se que as bifurcações das
membranas analisadas são do tipo Dobra Cíclica, conhecida como Nó-Sela. Além de verificar
que quanto menor o nível de tração, maior será a não linearidade da curva de frequênciaamplitude
da membrana e que há leves divergências no comportamento da membrana em
relação aos três modelos constitutivos do material adotados.
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Cunha, Airton Modesto da. "Modelo pedagógico de resistores elétricos para descrever fraturas em sistemas físicos." Universidade Federal de Goiás, 2018. http://repositorio.bc.ufg.br/tede/handle/tede/8872.
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Previous issue date: 2018-08-09<br>The present dissertation is the result of the educational, “Teaching model of electrical
resistors to describe fractures in physical systems”, product worked in a class of the third
year of high school of the State School Prof. Marcolino de Barros of the municipality of Patos
de Minas-MG. In which, we present a simple pedagogical model with the purpose of studying
the complex process of ruptures in physical systems. For this, we developed an experimental
model together with its theoretical counterpart where we consider a system of electric
resistors network subject to a potential difference and analyze the current that passes
through the system as a function of the random removal of their resistive components. We
use a circuit board, voltage source stabilized at a pre-established potential difference, and a
resistor network with a few ohms units each. After the proposed experiments are executed,
we obtained appropriate experimental data and from these graphs are generated with which
the dependence of the current through the circuit with the interruption of the joints is shown.
Taking into account that this system behaves as an ohmic system, the model is used to study
several relevant physical concepts. As is the case of an elastic solid subject to Hooke’s law-
like deformations, this is then a very broad model.<br>A presente dissertação é resultado de nosso produto educacional, “Modelo pedagógico de
resistores elétricos para descrever fraturas em sistemas físicos”, trabalhado em uma turma
do terceiro ano do ensino médio da Escola Estadual Prof. Marcolino de Barros do município
de Patos de Minas-MG. No qual, apresentamos um modelo pedagógico simples com a
finalidade de estudar o complexo processo de rupturas em sistemas físicos. Para tanto,
desenvolvemos um modelo experimental munido de sua contraparte teórica onde
consideramos um sistema de resistores elétricos sujeito a uma diferença de potencial e
analisamos a corrente que passa através do sistema em função da remoção aleatória doscomponentes resistivos. Usamos uma placa de circuitos, fonte de tensão estabilizada em uma
diferença de potencial pré -estabelecida e uma malha de resistores com algumas unidades de
ohms cada. Realizadas as experiências propostas obtivemos apropriados dados
experimentais e a partir destes foram gerados gráficos com os quais são mostrados a
dependência da corrente através do circuito com a interrupção das junções. Levando em
consideração que este sistema se comporta como um sistema ôhmico, o modelo é usado para
estudar vários conceitos físicos relevantes. Como é o caso de um solido elástico sujeito a
deformações do tipo lei de Hooke, sendo este então um modelo de caráter bem amplo.
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Cazzaro, Jacopo <1994>. "The Startup's success through the Hook Model." Master's Degree Thesis, Università Ca' Foscari Venezia, 2019. http://hdl.handle.net/10579/15927.
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La tesi ha come argomento principale il successo delle Startup digitali tramite l’ Hook Model. Inventato da Nir Eyal, l’Hook model spiega come i nuovi prodotti digitali sono talmente coinvolgenti da modificare i comportamenti degli utenti fino a diventare un abitudine o addirittura una dipendenza per loro. Il Case Study riguarda Instagram e va ad esaminare lo sviluppo del social network. Nell'analisi si spiega il perché del successo di questa piattaforma. Inoltre con un questionario fatto su un campione di 238 persone si andrà a verificare la validità del Hook Model di Instagram.
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Williams, Kelly A. "Behavioral Plasticity in Hooded Warblers (Setophaga citrina): Linking Behavior, Environmental Context and Reproductive Success." Ohio University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1367942219.
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Brand, Michael Max. "HOOD : a Higher-Order Object-Oriented Database model and its implementation." Master's thesis, University of Cape Town, 1992. http://hdl.handle.net/11427/17375.
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Bibliography: pages 133-140.<br>There is no accepted standard for the object-oriented database paradigm at present, which has led to different definitions of features and conformance requirements. HOOD is a Higher-Order Object-Oriented Database system which defines a meta-data model for specifying the requirements of an Object-Oriented Database, which provides uniformity and extensibility. From this specification and by making use of a comprehensive structure system, an exemplar or implementation model is defined. Among the constructs provided by the model are types, instances, objects, values, methods, base types, generic types and metatypes. The mechanisms of instantiation and subtyping allow for relationships between these constructs. Extensibility is provided in the model for types, base types, structures and methods. Uniformity is achieved by defining all constructs as instances and through the use of messages for all operations. There is only one form of object construct which provides persistence and identities. The complex values and extensibility of the model allow it to adapt in order to model the real world instead of adapting the real world to fit the model. We have implemented a subset of the structures and values defined in the model, provided persistence and identities for object, and included the various constructs mentioned above. The method language allows for the specification of methods, the passing of messages, and the use of complex values. The compiler performs type checking and resolution and generates instructions for an abstract machine which manipulates the database.
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Wang, Shun-Sheng. "Development of constitutive model for Al-2011 alloy in mushy state." Ohio University / OhioLINK, 1994. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1174224280.
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Dubuis, Laura. "Biomécanique des tissus mous de la jambe humaine sous compression élastique." Phd thesis, Ecole Nationale Supérieure des Mines de Saint-Etienne, 2011. http://tel.archives-ouvertes.fr/tel-00716423.
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La compression élastique (CE) est un traitement médical qui est prescrit en cas d'insuffisance veineuse. Récemment, la CE rencontre aussi un certain succès auprès des sportifs pour la récupération. Cependant, malgré l'utilisation de plus en plus massive de la CE, son action biomécanique sur le membre inférieur n'est pas encore bien caractérisée. Pour contribuer à cette caractérisation, un modèle biomécanique 3D des tissus mous de la jambe sous CE a été développé et appliqué à un panel de sujets. Chaque modèle est personnalisé : la géométrie est reconstruite à partir des images tomographiques 3D de la jambe de chaque sujet et les conditions aux limites reproduisent fidèlement la pression localement appliquée par la CE sur la peau. De plus, les propriétés hyper-élastiques des tissus mous sont identifiées pour chaque sujet par recalage du modèle. Une méthode de recalage originale a été spécifiquement développée et mise en œuvre pour cette application : elle consiste à utiliser les images tomographiques 3D de la jambe déformée comme données expérimentales pour le recalage. Finalement, le modèle donne accès au champ de pression transmis par la CE aux tissus mous internes. Les principales conclusions sont que le champ de pression à l'intérieur de la jambe n'est pas transmis uniformément et qu'il y a de fortes variabilités inter-sujets. En outre, le modèle permet d'obtenir des indications sur le confort et l'efficacité de la CE. Il a ainsi été possible de montrer que l'intensité des pressions maximales subies par les tissus mous de la jambe est inversement proportionnelle à l'épaisseur du tissu adipeux. Les principales perspectives du travail concernent la validation clinique de ces conclusions sur un nombre significatif de sujets, puis leur exploitation en vue d'améliorer les traitements.
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Sharad, Dhanpalwar Prathamesh, and Xinyuan Chen. "Cole Model Analysis of EBIs Neonatal Cerebral Measurements." Thesis, Högskolan i Borås, Institutionen Ingenjörshögskolan, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-20238.
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The concept of Electrical Bio Impedance prevails in this thesis. The EBI measurement which is used for obtaining the body composition is, by virtue of time becoming of great use as its one of the easiest method of finding out the body composition. In simple words, EBI is the opposition offered by the body to the current. It is just like another analysis tool. The result is only as good as the test is done. In this thesis, we have done the analysis on the neonatal EBI measurements of two kinds.In this work, 293 measurements are obtained from 12 babies and 230 measurements are obtained from 7 babies have been analyzed with the purpose of obtaining reference values for the spectrum of complex EBI. The analysis uses both statistical and model approach of obtaining reference values and in order to fit the given data, Cole model analysis is used.Filters were applied to get the highest degree of correctness. In the due course of the filtering, it was found that the measurements from some babies have been deleted. The Standard Error of Estimation (S.E.E.) is a parameter used for obtaining the further reliable and most probable output. The further analysis is done using MATLAB and the results are been compared to the previous analysis report.
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Buendía, Rubén. "Hook Effect on Electrical Bioimpedance Spectroscopy Measurements. Analysis, Compensation and Correction." Thesis, Högskolan i Borås, Institutionen Ingenjörshögskolan, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-19565.
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Nowadays, the Electrical Bioimpedance (EBI) measurements have become a commonpractice as they are useful for different clinical applications. EBI technology and EBImeasurement systems are relatively simple when compared to other type of medicalinstrumentation. But even in such simple measurement systems measurement artifact mayoccur. One of the most common artifacts present measurements is the Hook Effect, which isidentifiable by the hook-alike deviation on the EBI data that it produces on the impedanceplot.The Hook Effect influences typical EBI data analysis processes like Cole fitting processand the estimation of the Cole parameters, which are critical for several EBI applications.Therefore the Hook Effect must be corrected, compensated or removed before the any fittingprocess.With the goal of finding a reliable correction method the origin and the impact on theEBI measurement of the Hook Effect is studied in this thesis. The currently used Tdcompensation method is also studied and a new approach for compensation and correction ispresented.The results indicate that the proposed method truly corrects the Hook Effect and that themethodology to select the correcting parameters is solid based on the origin of the Hook Effectand it is extracted from the EBI measurement it-self avoiding any external dependency.
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Nagl, Nico. "Komplexe Kontakt- und Materialmodellierung am Beispiel einer Dichtungssimulation." Universitätsbibliothek Chemnitz, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-141636.
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In vielen industriellen Anwendungen sind Dichtungen im Einsatz. Vergleicht man den Preis mit dem eines Gesamtsystems, in denen Dichtungen verwendet werden, so sind Dichtungen verhältnismäßig günstig. Jedoch führt ein Versagen von Dichtungen meist zu schwerwiegenden Konsequenzen. Dichtungen sind komplexe Subsysteme und ihre Auslegung erfordert umfangreiche Kenntnisse im Bereich Materialmodellierung, Belastung und Versagenskriterien. Die heutige Simulationstechnologie ermöglicht einen parametrischen Workflow für die Berechnung des Verhaltens von Dichtungen mit den auftretenden Effekten wie nichtlinearem Materialverhalten, wechselnden Kontaktbedingungen und Flüssigkeitsunterwanderung bei Druck. Als ein führendes Simulationswerkzeug für diese physikalische Fragestellung wird ANSYS Mechanical für die Auslegung herangezogen. Desweiteren kann das Verständnis für das Produkt erhöht werden, was zu einer Verbesserung der Funktionalität und der Zuverlässigkeit führt. Versuchsdaten können als Spannungs-Dehnungskurven in ANSYS importiert werden, welche das Materialverhalten des hyperelastischen Werkstoffs mit traditionellen Materialmodellen wie Mooney Rivlin, Ogden and Yeoh oder einer neueren Formulierung, der Antwortfunktionsmethode, widerspiegeln. Robuste Kontakttechnologien beschleunigen die Simulation und Entwicklungszeit-Berechnungszeiten und gewährleisten ein genaues Verhalten des Simulationsmodells. Insbesondere bei Dichtungen ist die druckbeaufschlagte Fläche in 2D und 3D Anwendungen von Bedeutung. ANSYS berechnet diese automatisch in Abhängigkeit des aktuellen Kontaktzustandes. Diese benutzerfreundliche Unterstützung führt zu einer höheren Genauigkeit des Simulationsergebnisses, da ein manuelles Schätzen der Druckflächen entfällt. Mit einem parametrischen und durchgängigen Ansatz innerhalb von ANSYS Workbench, beginnend bei der CAD-Geometrie, über die Vernetzung, Material- und Randbedingungsdefinition und Lösung. können eine Reihe von Varianten in kurzer Zeit berechnet werden. Neben einem besseren Verständnis für das Produkt hilft dies dem Ingenieur Änderungen vorzunehmen, was zu exakten und aussagekräftigen Ergebnissen führt. Desweiteren kann der Einfluss von Unsicherheiten berücksichtigt werden, sodass der Berechnungsingenieur fernab von idealen Bedingungen robuste und zuverlässige Dichtungen entwickeln kann.
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Ullrich, Romy [Verfasser], and C. [Akademischer Betreuer] Hoose. "Development and Model Application of a Surface-Site-Based Parametrization Framework for Heterogeneous Ice Nucleation / Romy Ullrich ; Betreuer: C. Hoose." Karlsruhe : KIT-Bibliothek, 2016. http://d-nb.info/1120498384/34.
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Ghizzo, Affonso Celso. "Proposta de modelo de arame (hook-wire) para marcar lesões mamárias não palpáveis." Florianópolis, SC, 2003. http://repositorio.ufsc.br/xmlui/handle/123456789/86431.
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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde. Programa de Pós-Graduação em Ciências Médicas.<br>Made available in DSpace on 2012-10-21T06:56:01Z (GMT). No. of bitstreams: 1
195052.pdf: 458240 bytes, checksum: a6454cfd08f43e977974127a929cdd75 (MD5)<br>Introdução: O presente trabalho consiste na proposição de um novo arame de marcação para guiar biópsias cirúrgicas em lesões mamárias não palpáveis, bem como sua análise comparativa com o arame de marcação tipo Kopans, o mais utilizado atualmente.
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Moberg, Joel, and David Hansson. "Varför använder du Facebook? : En kvalitativ undersökning om vad som motiverar studenter i Uppsala att använda Facebook." Thesis, Uppsala universitet, Institutionen för informatik och media, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-355485.
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I den här uppsatsen undersöks vad som motiverar studenter vid Uppsala universitet att använda och stanna kvar på det sociala nätverket Facebook. Med hjälp av intervjuer samlas data in om hur målgruppen använder tjänsten, vad som motiverar dem, och vad de tycker om sitt eget användande. Intervjusvaren analyseras utifrån ett enkelt ramverk som baserats på The Hook Model och Fogg Behavior Model, vilka beskriver hur vaneanvändande kan skapas. Vi kommer fram till att det finns starka tendenser till vaneanvändande av Facebook hos målgruppen, och att detta är något de är missnöjda med. Vidare har målgruppens användande förändrats över tid, och vanorna som nu motiverar användandet verkar ha bildats då tjänsten uppskattades mer och användandet var mer aktivt. Vanan att använda Facebook förstärks nu inte längre, men lever kvar i högsta grad. Målgruppen vill även sluta använda Facebook, men lyckas inte göra detta. Vi kommer fram till att detta troligen beror på att en alltför stor social investering har gjorts i tjänsten, och att vanan som bildats är svår att bryta.<br>In this paper the motivation for using the social media platform Facebook is studied among students at Uppsala University. Interviews are used to collect data about how the demographic is using the platform, what motivates them and what they think about their own user behavior. The data is analysed with a framework based on The Hook Model and Fogg Behavior Model, that describes how platforms can be designed to create habitual use. We find that there are strong tendencies towards habitual use of Facebook among the demographic, and that this is something they are displeased with. The demographic Facebook use has changed over time, and the habits that now acts as motivation was formed when their appreciation for the platform was greater and they used it more actively. The habit to use Facebook is no longer enforced but is still present. The demographic wants to stop using Facebook, but are not able to do so. We conclude that this most likely is caused by a significant social investment in the platform, and that the habitual use is hard to end.
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Singh, Shweta [Verfasser], Christoph [Akademischer Betreuer] Kottmeier, and Corinna [Akademischer Betreuer] Hoose. "Convective precipitation simulated with ICON over heterogeneous surfaces in dependence on model and land-surface resolution / Shweta Singh ; Christoph Kottmeier, Corinna Hoose." Karlsruhe : KIT Scientific Publishing, 2021. http://d-nb.info/1238232469/34.
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Jedlička, Roman. "Effect of income inequality on quality of tertiary education: Should professors from Cambridge thank to Robin Hood?" Master's thesis, Vysoká škola ekonomická v Praze, 2013. http://www.nusl.cz/ntk/nusl-194206.
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Many factors influence quality of higher education. Current research mostly works with economic factors (GDP, higher education expenditures etc.). However, there are also publications that examine an impact of sociological aspects on quality of higher education. My research examined the impact of income inequality on quality of tertiary education. In the analysis of socioeconomic data of 76 countries I have proven that there is no linear relationship between income inequality and quality of tertiary education. According to my results the size of population, GDP per capita and being English speaking country are main drivers of quality of tertiary education. Modified model without outliers also shows that there is a positive effect of R&D expenditures on quality of tertiary education.
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Rodríguez, Portero Alejandro. "Development of a Software Application Suite for Electrical Bioimpedance Data Analysis." Thesis, Högskolan i Borås, Institutionen Ingenjörshögskolan, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-19882.
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Suri, Gaurav. "A Fundamental Investigation of Retention Phenomena in Snap-fit Features." The Ohio State University, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=osu1020884801.
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Danish, Siddiqui Muhammad, and Suhasini Gopi. "MATLAB suite for removing the capacitive leakage effect from EBI Spectroscopic data." Thesis, Högskolan i Borås, Institutionen Ingenjörshögskolan, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-20406.
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Electrical Bioimpedance (EBI) is the opposition offered by the biological material to theflow of electric current. Nowadays EBI technology is widely used for total body compositionand body fluid distribution.In this project a software suite is developed by using the GUI tool of Matlab, thissoftware is meant to help to remove artefacts from the EBI measurement and to visualize theEBIS measurements and the processing performed on them.Hook effect is one of the major artefacts found in EBI measurements, which createsproblems in any analysis. To eliminate the Hook effect some methods are followed. The data’sare processed using these methods and they are visualized. For the better understanding, bothraw data and the corrected data are plotted in impedance and admittance plots. The correcteddata is stored for further use and analysis.
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Kundu, Soumyadipta. "AN INSIGHT INTO DIFFERENT MODES OF REMODELER REGULATION: FOCUS ON SACCHAROMYCES CEREVISIAE SWI/SNF." OpenSIUC, 2016. https://opensiuc.lib.siu.edu/dissertations/1314.
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ATP dependent chromatin remodelers use the energy from ATP hydrolysis to move, disassemble or alter the composition of nucleosomes. Though all remodelers share a conserved ATP hydrolysis and DNA translocase domain, their biochemical actions and in-vivo characteristics differ because of their subunits and accessory domains in the catalytic subunit that regulate its activity. Understanding how these domains contribute to remodeler regulation in terms of substrate interaction and regulation of the catalytic subunit is therefore important to understanding what causes a remodeler to behave differently, and what are the mechanistic underpinnings of such behavior. In this study we have addressed these questions using the SWI/SNF remodeler from budding yeast (Saccharomyces cerevisiae) to explore how different remodelers compare to SWI/SNF in terms of nucleosome interaction. Using a chemical based histone – remodeler photo-crosslinking and labeling approach, we show that different remodelers contact nucleosomes in patterns unique to their functions, and even remodelers that belong to the same family interact with nucleosomes in a unique manner to accomplish their respective remodeling results. In addition we delineate the functions of the AT hook motifs in the catalytic subunit of SWI/SNF using in-vitro and in-vivo techniques. We demonstrate the necessity of the regulatory action of the motif in the context of SWI/SNF remodeling due to its requirement for efficient ATP hydrolysis by the catalytic domain and therefore efficient remodeling. We also demonstrate for the first time that SWI/SNF in yeast is involved in transcriptional repression with evidence that the AT hook alters SWI/SNF activity at particular genomic regions. Regulation of SWI/SNF activity is an increasingly important topic of study, with mutations that cause SWI/SNF dysfunction being implicated in a large number of cancers and neurological diseases. We attempt to find out the biochemical implications of mutations in the catalytic, SnAC and AT hook motifs with respect to SWI/SNF activity. Taken together, this study provides an insight into some of the different mechanisms in which remodelers are regulated using budding yeast as a model system.
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Grayson, Ben. "Validation of an animal model of cognitive dysfunction associated with schizophrenia : development and validation of the novel object recognition task using behavioural manipulations and psychotomimetic dosing regimens to induce cognitive deficits of relevance to schizophrenia in hooded-Lister rats." Thesis, University of Bradford, 2012. http://hdl.handle.net/10454/5481.
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Phencyclidine (PCP) is a non-competitive NMDA receptor antagonist that has been shown to induce schizophrenia-like psychotic symptoms that are clinically indistinguishable from schizophrenia in patients. When administered to rodents, PCP produces an array of behaviours that are characteristic of schizophrenia. Schizophrenia is associated with continual and treatment resistant cognitive deficits which are now recognised as a core feature of the disease. The aim of the studies reported in chapter 3 were to establish a set of objects with equal preference in the NOR (novel object recognition) test. Furthermore, the inter-trial-interval (ITI) of the NOR test was investigated in an attempt to elucidate the effects of time and location of the rats during the ITI on the cognitive impairments following sub-chronic PCP treatment. The experiments in chapter 4 were designed to compare the performance of male and female rats in the NOR test following treatment with acute d-amphetamine (d-amph), PCP and sub-chronic PCP treatment. In chapter 5, validation of the cognitive deficits induced by sub-chronic PCP treatment was assessed using carefully selected pharmacological agents. The aim of the studies in chapter 6 was to determine the effects of isolation rearing on cognitive performance in the NOR test following increasing ITIs. Additionally, the sensitivity of isolation reared rats compared to social controls following acute administration of PCP and d-amph was assessed using the NOR test. Studies in chapter 8 utilised the 16-holeboard maze to determine the effects of acute treatment with d-amphetamine, PCP and scopolamine on working memory in the rat. NOR is a visual learning and memory test that measures recognition memory which is impaired in patients with schizophrenia. Studies presented in this thesis demonstrate the importance of careful pilot studies when selecting objects for use in the NOR test. Initial studies in sub-chronic PCP (2 mg/kg for 7 days followed by 7 days drug free) treated female hooded-Lister rats revealed a preference of the rats for the wooden cone object; subsequently this object was eliminated from further NOR experiments. Sub-chronic PCP treated rats were found to be highly susceptible to the disruptive influence of distraction during the short 1 min inter-trial-interval (ITI) in the NOR test. These results are consistent with clinical findings of the effects of distraction on cognition in schizophrenia patients. Following the initial validation experiments, a 1 min ITI in the home cage was selected for all subsequent NOR studies. Further experiments provided evidence to confirm that information presented in the acquisition trial is encoded but not retained in the retention trial of the NOR test by IV PCP-treated rats. Male rats were less sensitive to the recognition memory deficits induced by acute treatment with PCP and d-amphetamine compared with females. Following sub-chronic PCP treatment, both males and females showed object recognition deficits, however, the impairments were more robust in female rats. Female rats were therefore selected for all subsequent experiments. Pharmacological validation was carried out using carefully selected agents which were assessed for their ability to restore the sub-chronic PCP induced cognitive deficit in the object recognition test. It was found that the classical antipsychotic agents haloperidol and fluphenazine, the benzodiazepine anxiolytic chlordiazepoxide and the SSRI antidepressant fluoxetine were ineffective. Further studies showed that the atypical antipsychotic agents, clozapine and risperidone, the analeptic agent modafinil, the nAChR full agonist nicotine, and full agonist and positive allosteric modulator of the α7 nAChR (PNU-282987 and PNU120596 respectively) reversed the recognition memory deficit induced by sub-chronic PCP treatment in the NOR test. Isolation rearing of rats at weaning is an environmental stressor that has relevance for modelling the symptomatology and pathology of schizophrenia. Isolates had a significantly increased locomotor activity (LMA) response to a novel environment and enhanced sensitivity to time delay-induced recognition memory deficits, compared with their socially reared counterparts. Isolates were less sensitive to an acute PCP-induced recognition memory deficit but more sensitive to an acute d-amphetamine induced recognition memory deficit in the NOR test compared to social controls. Preliminary results from the 16-holeboard maze experiments reveal that acute administration of the mAChR antagonist scopolamine, d-amphetamine, PCP and sub-chronic PCP treatment reduced working memory scores compared to vehicle treated controls. Taken together, these findings suggest that sub-chronic treatment with PCP induces cognitive deficits in behavioural tests of relevance to cognition associated with schizophrenia. This may allow the detection of novel pharmacotherapies to alleviate these cognitive deficits and exploration of the nature of cognitive disturbances in these patients.
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Sauls, Beverly J. "Relative Survival of Gags Mycteroperca microlepis Released Within a Recreational Hook-and-Line Fishery| Application of the Cox Regression Model to Control for Heterogeneity in a Large-Scale Mark-Recapture Study." Thesis, University of South Florida, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=1548780.
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<p> The objectives of this study were to measure injuries and impairments directly observed from gags <i>Mycteroperca microlepis</i> caught and released within a large-scale recreational fishery, develop methods that may be used to rapidly assess the condition of reef fish discards, and estimate the total portion of discards in the fishery that suffer latent mortality. Fishery observers were placed on for-hire charter and headboat vessels operating in the Gulf of Mexico from June 2009 through December 2012 to directly observe reef fishes as they were caught by recreational anglers fishing with hook-and-line gear. Fish that were not retained by anglers were inspected and marked with conventional tags prior to release. Fish were released in multiple regions over a large geographic area throughout the year and over multiple years. The majority of recaptured fish were reported by recreational and commercial fishers, and fishing effort fluctuated both spatially and temporally over the course of this study in response to changes in recreational harvest restrictions and the Deepwater Horizon oil spill. Therefore, it could not be assumed that encounter probabilities were equal for all individual tagged fish in the population. Fish size and capture depth when fish were initially caught-and-released also varied among individuals in the study and potentially influenced recapture reporting probabilities. The Cox proportional hazards regression model was used to control for potential covariates on both the occurrence and timing of recapture reporting events so that relative survival among fish released in various conditions could be compared. A total of 3,954 gags were observed in this study, and the majority (77.26%) were released in good condition (condition category 1), defined as fish that immediately submerged without assistance from venting and had not suffered internal injuries from embedded hooks or visible damage to the gills. However, compared to gags caught in shallower depths, a greater proportion of gags caught and released from depths deeper than 30 meters were in fair or poor condition. Relative survival was significantly reduced (alpha <u><</u>0.05) for gags released in fair and poor condition after controlling for variable mark-recapture reporting rates for different sized discards among regions and across months and years when individual fish were initially captured, tagged and released. Gags released within the recreational fishery in fair and poor condition were 66.4% (95% C.I. 46.9 to 94.0%) and 50.6% (26.2 to 97.8%) as likely to be recaptured, respectively, as gags released in good condition. Overall discard mortality was calculated for gags released in all condition categories at ten meter depth intervals. There was a significant linear increase in estimated mortality from less than 15% (range of uncertainty, 0.1-25.2%) in shallow depths up to 30 meters, to 35.6% (5.6-55.7%) at depths greater than 70 meters (p < 0.001, R<sup>2</sup> = 0.917). This analysis demonstrated the utility of the proportional hazards regression model for controlling for potential covariates on both the occurrence and timing of recapture events in a large-scale mark-recapture study and for detecting significant differences in the relative survival of fish released in various conditions measured under highly variable conditions within a large-scale fishery.</p>
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Sauls, Beverly J. "Relative Survival of Gags Mycteroperca microlepis Released Within a Recreational Hook-and-Line Fishery: Application of the Cox Regression Model to Control for Heterogeneity in a Large-Scale Mark-Recapture Study." Scholar Commons, 2013. http://scholarcommons.usf.edu/etd/4940.
Full textAbstract:
The objectives of this study were to measure injuries and impairments directly observed from gags Mycteroperca microlepis caught and released within a large-scale recreational fishery, develop methods that may be used to rapidly assess the condition of reef fish discards, and estimate the total portion of discards in the fishery that suffer latent mortality. Fishery observers were placed on for-hire charter and headboat vessels operating in the Gulf of Mexico from June 2009 through December 2012 to directly observe reef fishes as they were caught by recreational anglers fishing with hook-and-line gear. Fish that were not retained by anglers were inspected and marked with conventional tags prior to release. Fish were released in multiple regions over a large geographic area throughout the year and over multiple years. The majority of recaptured fish were reported by recreational and commercial fishers, and fishing effort fluctuated both spatially and temporally over the course of this study in response to changes in recreational harvest restrictions and the Deepwater Horizon oil spill. Therefore, it could not be assumed that encounter probabilities were equal for all individual tagged fish in the population. Fish size and capture depth when fish were initially caught-and-released also varied among individuals in the study and potentially influenced recapture reporting probabilities. The Cox proportional hazards regression model was used to control for potential covariates on both the occurrence and timing of recapture reporting events so that relative survival among fish released in various conditions could be compared.
A total of 3,954 gags were observed in this study, and the majority (77.26%) were released in good condition (condition category 1), defined as fish that immediately submerged without assistance from venting and had not suffered internal injuries from embedded hooks or visible damage to the gills. However, compared to gags caught in shallower depths, a greater proportion of gags caught and released from depths deeper than 30 meters were in fair or poor condition. Relative survival was significantly reduced (alpha (underline)<(/underline)0.05) for gags released in fair and poor condition after controlling for variable mark-recapture reporting rates for different sized discards among regions and across months and years when individual fish were initially captured, tagged and released. Gags released within the recreational fishery in fair and poor condition were 66.4% (95% C.I. 46.9 to 94.0%) and 50.6% (26.2 to 97.8%) as likely to be recaptured, respectively, as gags released in good condition. Overall discard mortality was calculated for gags released in all condition categories at ten meter depth intervals. There was a significant linear increase in estimated mortality from less than 15% (range of uncertainty, 0.1-25.2%) in shallow depths up to 30 meters, to 35.6% (5.6-55.7%) at depths greater than 70 meters (p < 0.001, R2 = 0.917). This analysis demonstrated the utility of the proportional hazards regression model for controlling for potential covariates on both the occurrence and timing of recapture events in a large-scale mark-recapture study and for detecting significant differences in the relative survival of fish released in various conditions measured under highly variable conditions within a large-scale fishery.
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Bolander, Alisa Curtis. "Margaret Cavendish and Scientific Discourse in Seventeenth-Century England." Diss., CLICK HERE for online access, 2004. http://contentdm.lib.byu.edu/ETD/image/etd422.pdf.
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NGUYEN-THI, Van-Oanh. "SPECTROSCOPIE ET STABILITE DES HYDROCARBURES AROMATIQUES POLYCYCLIQUES DANS LES CONDITIONS DU MILIEU INTERSTELLAIRE." Phd thesis, Université Paris Sud - Paris XI, 2003. http://tel.archives-ouvertes.fr/tel-00005244.
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Ce travail porte sur la dynamique intramoléculaire des Hydrocarbures Aromatiques Polycycliques soumis aux conditions du milieu interstellaire (PAH isolé rotationnellement froid mais vibrationnellement excité). Des études théoriques et expérimentales ont été menées sur leur deux voies de relaxation: émission IR ou fragmentation. Le spectre d'absorption IR a été obtenu par dynamique moléculaire couplée à une méthode semi-classique Adiabatic Switching. La dynamique a été réalisée sur une surface de potentiel semi-empirique Tight-Binding dans le but de simuler tous types de PAHs pouvant dépasser une centaine de carbones (systèmes encore inaccessibles aux expériences et aux calculs ab-inito). Une paramétrisation du potentiel adaptée aux PAHs a été développée ainsi qu'un modèle donnant la densité d'états anharmonique quantique. La simulation spectrale reproduit les grandes tendances en fonction des variables pertinentes en astrophysique: rôle de l'ionisation fort changement de l'allure du spectre et de l'intensité totale absolue), et de la température (décalage vers le rouge, élargissement et modification des intensités des bandes), effet d'anharmonicité (énergie de point zéro, fréquences), et de structure (compacité, cycle pentagonal et taille). La cinétique de fragmentation (induite par absorption séquentielle de photons) d'un hydrogène du cation fluorène (ionisation REMPI) a été étudiée à l'aide d'un jet supersonique et d'un spectromètre de masse. Cette méthode expérimentale originale a permis de déterminer la section efficace absolue d'absorption, d'analyser son atténuation avec le nombre de photons absorbés et l'évolution de la constante de dissociation dans un domaine d'énergie relativement large. Une attention particulière a été portée sur les techniques d'analyse des données. (la loi de Poisson, matrice de branchement, la loi cinétique, matrice d'évolution, simulation de la forme de signaux du spectromètre). Un ajustement libre de la variation de cette constante est proche de celui du modèle statistique PTD mais très différent à basse énergie du modèle RRK. L'énergie d'activation obtenue par ces deux modèles est compatible avec celle déduite du potentiel Tight-Binding.
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Sims, Nicole Rose. "DNA unknotting and decatenation by selective type-2 topoisomerase action at hooked juxtapositions." Thesis, 2009. http://hdl.handle.net/2152/ETD-UT-2009-12-675.
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This report combines a series of papers to trace progression in the area of type-2 topoisomerase research. First, Deibler et al. show that knotted DNA is harmful to cells. Knots can block both transcription and replication, and can also act as a catalyst for mutation. Despite the fact that type-2 topoisomerases perform the important functions of unknotting and decatenating DNA, the mechanism by which they accomplish this task is still unknown. Buck and Zechiedrich propose a model in which the enzyme uses local geometry to infer global topology, and thus where to perform segment passage in
order to obtain the desired results. In two articles, Liu et al. evaluate this theory quantitatively for the decatenation and unknotting problems. In both cases it is shown that the presence of certain juxtapositions is strongly correlated with global topology. This correlation is not enough, however, and Liu et al. go on to show that when segment passage operations designed to mimic type-2 topoisomerase action are performed at hooked juxtapositions, the overwhelming tendency is towards unknotting and decatenation.<br>text
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Lin, Chun-Cheng, and 林俊成. "Plastic Snap Design of Hook Model and Structure Analysis." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/10723231600725185010.
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碩士<br>大同大學<br>機械工程學系(所)<br>95<br>The research is design a complete and development procedure for plastic snap design of hook model. The research also uses CAE to conduct the optimization analysis research. Because the data of snap is not easy to find and the design type are various, therefore to collect the related information are not easy. In order to approaches the reality , this research got the related material data from Chi-Mei Corporation for simulation and experiment. The research design use traditional mechanics operation regard as max stress and experience design value calculating the plastics pieces length、width and thick design parameter size.
The research uses Pro/ENGINEER soft to make first snap drawing module. After finish design the first snap module then use Pro/MECHANICA to analyze to get the optimization shape. Then according the best module to add feature improve snap shape. For example add rib、 lead round corner and remove material to analyze simulation , until each module find out optimization number value. Then we can use the analyze result to find optimization of snap shape and use the experience reference for this structure designer in the future. The analyze of this research is use more conscientious way to find the optimization shape of snap .It help the designer in initial stage developing and assess the structure good or not of products. Explore and improving the question in advance, make design construction period shorten and lower costs. In the future more experience in use CAE not only can improve designer's judgement experience and can improve industry's competitiveness.
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Cowart, Macklin. "Robin Hood as Sheriff in Medieval Estates Model Literature." 2015. http://scholarworks.gsu.edu/english_diss/156.
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In his book, Robin Hood: An Historical Enquiry, John Bellamy asserts that the lack of a study of the relationship between Robin Hood and the sheriff stems from very little evidence in the ballads and external sources. However, the Robin Hood ballads originate in the fourteenth century when tales of justice and chivalry experienced widespread appeal alongside complaint literature addressing social upheaval bubbling to the surface of English life; why would an audience celebrate an outlaw during this time and long after Gawain and Arthur fade in popularity in the ensuing centuries? There must be more to the relationship between Robin Hood and the sheriff of Nottingham. In order to find a deeper relationship between the outlaw and lawman, the estates model should be used as a framework from which to begin the study of Robin Hood and his shrieval desires and not as a specific exercise of explication and application. By doing so, one can see that Robin Hood does assume the role of the sheriff in the early ballads by assuming his duties of managing the forests, collecting money from individuals within the community, albeit mostly from dishonest clergy, maintaining an army for defense, and settling disputes between various parties within the shire. By examining the shrieval position Robin attempts to fill as imagined through the estates model and the period’s accepted role of sheriff, Robin Hood appears as the idealized form of the sheriff in a real-world environment that could not support the ideal.
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Melles, Stephanie Joy. "Effects of forest connectivity, habitat availability, and intraspecific biotic processes on range expansion: Hooded warbler (Wilsonia citrina) as a model species." 2007. http://link.library.utoronto.ca/eir/EIRdetail.cfm?Resources__ID=742345&T=F.
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Паназдир, Альона Вікторівна. "Диференціальна модель неоднорідної структури для в’язкопружного випадку". Магістерська робота, 2020. https://dspace.znu.edu.ua/jspui/handle/12345/2567.
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Паназдир А. В. Диференціальна модель неоднорідної структури для в’язкопружного випадку : кваліфікаційна робота магістра спеціальності 111 "Математика" / наук. керівник С. М. Гребенюк. Запоріжжя : ЗНУ, 2020. 52 с.<br>UA : Робота викладена на 52 сторінках друкованого тексту, містить 10 рисунків, 22 джерела. Об’єкт дослідження: диференціальні співвідношення в’язкопружності. Мета роботи: застосувати диференціальні співвідношення до моделювання в’язкопружності у неоднорідних матеріалах. Метод дослідження: аналітичний. Кваліфікаційну роботу присвячено побудові моделей і виведенню диференціальних співвідношень в’язкопружних процесів. У роботі досліджено диференціальні моделі Максвела та Фойгхта. На основі моделі Максвела побудовано модель деформування волокнистого композиційного матеріалу, у якого матриця в’язкопружна, а волокно – пружне. Отримано співвідношення для двох ефективних характеристик гомогенізованого матеріалу і з їх використанням записано в’язкопружний закон деформування композиту.<br>EN : The work is presented on 52 pages of printed text, 10 figures, 22 references. The object of the study is differential viscosity ratio. The aim of the study is apply differential equations to viscoelasticity
modeling in non-homogeneous materials. The method of research is analytical. Thesis is devoted to the construction of models and the derivation of differential equations of viscoelastic processes. Differential Maxwell and Voigt models are investigated in this paper. On the basis of the Maxwell model, a model of deformation of fibrous composite material, whose matrix is viscoelastic, and fiber is elastic, is constructed. A correlations for two effective characteristics of a homogenized material were obtained. The viscoelastic deformation law of a composite was recorded with their use.
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Liu, Wei-Ting, and 劉威廷. "A Hierarchical-Systems Biology Model (HiSBiM) for studying Cigarette and Hookah constituents-gene/protein-pathway-disease relationships." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/j5pfws.
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Піморенко, Анастасія Олександрівна. "Пружно-пластична модель неоднорідного матеріалу на основі одноелементних моделей". Магістерська робота, 2020. https://dspace.znu.edu.ua/jspui/handle/12345/3082.
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Піморенко А. О. Пружно-пластична модель неоднорідного матеріалу на основі одноелементних моделей : кваліфікаційна робота магістра спеціальності 111 "Математика" / наук. керівник С. М. Гребенюк. Запоріжжя : ЗНУ, 2020. 40 с.<br>UA : Робота викладена на 40 сторінках друкованого тексту, містить 14 рисунків, 24 джерела. Об’єкт дослідження: диференціальні співвідношення пружно-пластичності. Мета роботи: застосувати диференціальні співвідношення до моделювання пружно-пластичності у неоднорідних матеріалах. Метод дослідження: аналітичний. Кваліфікаційну роботу присвячено побудові моделей і виведенню диференціальних співвідношень пружно-пластичних процесів. У роботі досліджено диференціальні моделі Мізеса та Прандтля. На основі моделі жорстко-пластичного середовища побудовано модель деформування волокнистого композиційного матеріалу, у якого матриця пружно-пластична, а волокно – пружне. Отримано співвідношення для двох ефективних характеристик гомогенізованого матеріалу і з їх використанням записано пружно-пластичний закон деформування композиту.<br>EN : The work is presented on 40 pages of printed text, 14 figures, 24 references. The object of the study is differential elastic plasticity ratio. The aim of the study is apply differential equations to elastic plasticity modeling in non-homogeneous materials. The method of research is analytical. Thesis is devoted to the construction of models and the derivation of differential equations of elastic plastic processes. Differential Prandtle and Mieses models are investigated in this paper. On the basis of the rigid-plastic environment model, a model of deformation of fibrous composite material, whose matrix is elastic, and fiber is plastic, is constructed. A correlations for two effective characteristics of a homogenized material were obtained. The elastic plastic deformation law of a composite was recorded with their use.
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KROUPA, Robert. "Metoda stanovení struktur početních stavů populací spárkaté zvěře." Master's thesis, 2019. http://www.nusl.cz/ntk/nusl-395296.
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The diploma thesis deals with the determination and expansion of numerical structures for Cloven-hoofed game ie. for roe deer (Capreolus capreolus), red deer (Cervus elaphus), fallow deer (Dama dama), sika deer (Cervus nippon), white-tailed deer (Odocoileus virginianus), mouflon (Ovis musimon), chamois (Rupicapra rupicapra) and wild boar (Sus scrofa). The social structures of female game numbers for different sex ratios have been developed and can be used in different types of breeding. Based on the model cases performed, it has been confirmed that, with a limited number of individuals in the population, the number of youngsters and the number of adults decreases in nature at the sex ratio in favor of females due to spontaneous game reduction. As a result, the average age of adults is reduced, and younger years are getting into reproduction. Another negative aspect of this unbalanced sex ratio is the increase in cloven-hoofed game and related damage and intraspecific stress. In addition, for some game reserves, if the sex ratio is increased for males, there are problems of a similar character, which are being overcome by greater losses in heat fights. This creates additional economic damage. Model cases have shown and confirmed that, with a limited number of game and around a balanced gender ratio of 1:1 to about 1.2:1 in favor for males and 1:1.2 in favor for females, there are no problems with population control because it is predictable. Once the gender ratio is wider, basic problems arise and that is poorly breeding. These wider gender ratios are on one side and the other unnatural in nature and therefore carry many problems.
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McQuade, Val-Lyn. "Exploring the perceptions of caregivers regarding their homework involvement with institutionalised children : an application of three leve-one constructs of the Hoover-Dempsey and Sandler Model (1995)." Thesis, 2011. http://hdl.handle.net/10539/9218.
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The increased number of orphaned and vulnerable children (OVC) in South Africa is thought to be serious. The dramatic increase in OVC as a result of factors such as neglect, poverty, abuse and disease places emphasis on the care which such children receive. Due to the fact that many families cannot take on the burden of an extra child, such children find shelter on the streets or are placed in institutions. Seminal research has documented the negative effects that institutionalisation has on children especially in relation to their cognitive development. At the heart of institutionalised children’s development are the caregivers which attend to the children’s needs, such as homework.
It is thought that homework is essential to educational achievement as well as cognitive development and requires the input of a parent or caregiver. Due to the fact that the IQ of children within institutions is thought to be lower than that of their peers in a home environment, the type of homework mediation instutionalised children receive is important. In order to gain insight into the homework involvement process within the institution, this research sought to investigate the perceptions of caregivers regarding their homework involvement with instutionalised children through the application of three level-one constructs of the Hoover-Dempsey and Sandler model (1995). The Hoover-Dempsey and Sandler model (1995) is concerned with explaining the factors which influence or affect parents’ decisions to become involved in their children’s education.
The primary aim of this research was to investigate the perceptions of caregivers regarding their homework involvement with institutionalised children, applying the three level-one constructs of the Hoover-Dempsey and Sandler model (1995). This research was of a qualitative exploratory nature, and placed emphasis on the in-depth insight of caregivers. Data was collected through a self-developed semi-structured interview schedule and data analysis employed a thematic content analysis whereby themes and sub-themes were identified and discussed under the three level-one constructs of the Hoover-Dempsey and Sandler model (1995).
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Grevler, Kelly. "‘What makes songs catchy’: a cognitive analysis of melodic hooks in twenty-first century popular music." Diss., 2019. http://hdl.handle.net/10500/26148.
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Text in English with abstracts in English, isiZulu and Xhosa<br>Page numbering of table of contents inconsistent with dissertation. Appendix A : Full transcription only of Tip toe by Lacey May<br>What is it about the vocal melodies of popular music that make you want to listen again and again? This music-theoretical study applies principles of Gestalt psychology and theories of expectation to a study of melodic hooks in 21st-century popular music. The hypothesis tested here is that melodic hooks are a vital element in “catchiness”. Transcription and analysis of melodies by major recording artists is used to explore the note-to-note basis for melodic hooks. The analysis of recordings by Adele, Carly Rae Jepsen, Pharrell Williams and Robin Thicke shows how factors of repetition, familiarity, simplicity, resolution, ambiguity of key, and expectation all contribute to the sense of catchiness in music. A listener-response study was used to test the experience of catchiness in the case studies, and corroborates the hypothesis that catchiness depends principally on expectation as an overarching factor. The study also uses auto-ethnographic reflection on the practice of song-writing to give insight into strategies for creating catchy popular songs. The experience of composing a pop song, and releasing it on air, provides unique insight into the artistic process. The results of all these studies show that the perceptual principle of expectation is a crucial factor in the experience of catchiness.<br>Ingabe yini eyenza iminkenenezo yomculo odumile ikukhange futhi ikuhehe ufise ukuwulalela kaninginingi? Lolu cwaningo lwethiyori yomculo lusebenzisa imigomo ye-Gestalt psychology kanye namathiyori alokho okulindelekile (theories of expectation) ukucubungula nokuhlaziya amavesi eminkenenezo emnandi futhi ekhangayo yomculo odumile wekhulunyaka lama-21. Ihayiphothesisi ehlolwayo lapha wukuthi amavesi eminkenenezo emnandi futhi ekhangayo ayingxenye esemqoka kakhulu “ekukhangeni” komculo. Ukubhalwa nokuhlaziywa kweminkenenezo yabaculi abayizikhondlakhondla abaqopha umculo kuyasetshenziswa kulolu cwaningo ukucubungula inothi nenothi levesi lomnkenenezo omnandi futhi okhangayo. Ukuhlaziywa komculo oqoshiwe ka-Adele, Carly Rae Jepsen, Pharrell Williams kanye no-Robin Thicke kuyabonisa ukuthi izinto ezinjengokuphindaphinda, ukujwayeleka komculo othile, ubulula bomculo, ukuguquka kwenothi lomculo libe ngumnkenenezo ohlabahlosile (resolution), ukungaqondakali nokungaqiniseki ngokhiye womculo (ambiguity of key), kanye nalokho okulindelekile, konke kuyizinto ezilekelelayo futhi ezifaka isandla ekukhangeni komnkenenezo womculo. Ucwaningo lwendlela abazizwa ngayo abalaleli bomculo lwasetshenziswa ukuhlola ukuthi bakhangekile yini labo balaleli bomculo, kwizincwaningo-zigameko zokulalelwa komculo, futhi lolu cwaningo lwasekela lwaphinda lwaqinisekisa ihayiphothesisi ethi ukukhanga komnkenenezo womculo kuncike ikakhulukazi kulokho okulindelwe ngumlaleli womculo njengombandela-ngqangi wokuheheka nokukhangeka kwakhe. Ucwaningo lusebenzisa futhi nokuzibandakanya komcwaningi (auto-ethnographic reflection) enqubweni yokubhalwa kwamaculo ukuze athole ulwazi olunzulu futhi aqondisise kahle amaqhingasu okuqamba izingoma ezidumile ezinomnkenenezo omnandi futhi okhangayo. Ukuzibandakanya enqubweni yokuqamba ingoma yomculo we-pop, kanye nokuyikhipha ukuze idlalwe emisakazweni, kuhlinzeka ngethuba eliyingqayizivele lokuqonda ngokujulile inqubo yokwenza umculo. Imiphumela yazo zonke lezi zincwaningo iyabonisa ukuthi umgomo wendlela-kuhumusha izinto ngokwalokho okulindelekile wumgomo osemqoka kakhulu ekufikelweni komuntu ngumuzwa wokukhangwa nokuhehwa ngumnkenenezo.<br>Zingantoni izandi ezimnandi zokuvuma ezivakalayo zomculo odumileyo okubangela ufune ukuwuphulaphula njalo njalo? Olu phononongo lomculo ngokwenkcazelo eyingcingane lusebenzisa imigaqo-siseko yemeko yengqondo iGestalt (Gestalt psychology) kunye neengcingane (theories) zokulindelweyo kufundo lwezandi ezinomtsalane okubambayo kumculo wenkulungwane yama-21 Ulwazi oluyingcamango engenabungqina oluhlolwe apha kukuba izandi ezimnandi zokuvuma ingoma ziyinto ebalulekileyo "ekubambeni lula". Ukubhalwa kunye nohlalutyo lweengoma ezenziwa ngabaculi abaphambili bokushicilela kusetyenziselwa ukuphonononga isiseko senowuthi ukusuka kwenye ukuya kwenye inowuthi ngokwezibambo zokuvakala kwezandi. Uhlalutyo lokushicilela luka-Adele, Carly Rae Jepsen, Pharrell Williams kunye noRobin Thicke kubonisa indlela izinto eziphindaphindwayo, zokuqheleka, zobulula, ukusombulula, nobumbolombini kwikhi kunye nokulindelweyo konke kunegalelo kumba wokutsalwa ubanmbeke emculweni.
Uphononongo lokusabela komphulaphuli lwasetyenziswa ukuvavanya amava okufumana ifuthe lomtsalane kwizifundo zabucala, kwaye zihambelana nengcinga yokuba ukubamba kuxhomekeka ikakhulu kulindelo njengeyona nto iphambili. Olu phononongo lukwasebenzisa imbonakalo ezenzekelayo kwinkcazo yenzululwazi ngeentlanga kumsebenzi wokubhalwa kwengoma ukunika ukuqonda ngeendlela zokuyila ingoma ezimnandi ezidumileyo. Amava okuqamba ingoma ye-pop, kunye nokuyikhupha emoyeni, inika ingqiqo eyahlukileyo kwinkqubo yobugcisa. Iziphumo zazo zonke ezi zifundo zibonisa ukuba umgaqo-siseko wengcingane yokulindelweyo luphawu olubalulekileyo kakhulu kumava okubamba.<br>Art History, Visual Arts and Musicology<br>M. Mus. (Musicology)
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Cox, Diane Denise. "Parent perceptions of invitations for involvement : effects on parent involvement at home and school." Thesis, 2010. http://hdl.handle.net/2152/ETD-UT-2010-12-2149.
Full textAbstract:
Research has demonstrated much evidence for the positive effect of parent involvement on academic achievement in children (Jeynes, 2003, 2007; Hoover-Dempsey, Walker, Sandler, Whetsel, Green, Wilkins, & Closson, 2005; Fan & Chen, 2001; Griffith, 1996). As children from low income and ethnic minority families are at the greatest risk for academic failure, it is important to study the processes that lead parents to become involved within at-risk populations. A comprehensive model such as the one proposed by Hoover-Dempsey and Sandler (1995, 1997) provides a map of important constructs to study. Research using this model appears promising as a way to conceptualize the processes that lead to parent involvement (Walker, Wilkins, Dallaire, Sandler, & Hoover-Dempsey, 2005). However, there are few studies that have tested this model with minority populations, and none that have focused on a primarily Latino population. Parent involvement research indicates inconsistent findings regarding the role of family background variables in the process of parent involvement (Ho & Willms, 1996; Griffith, 1998). The purpose of this study was to examine the effects of parent perceived invitations for involvement on parent involvement behavior with a primarily low-income, urban, Latino population. Two levels of the Hoover-Dempsey and Sandler model were tested: parent perceived invitations for involvement (child invitations, school invitations, and teacher invitations) and parent involvement behavior (home-based and school-based). Child invitations and teacher invitations were both found to be important types of invitation for total parent involvement (home-based and school-based combined). Home language, employment status, and parent education level moderated the effect of child invitations on total parent involvement. When parent involvement was differentiated into home-based and school-based involvement as separate dependent variables, child invitations had a significant effect on both types of involvement. Home language, employment status, and parent education level moderated the effect of child invitations on home-based parent involvement. For this population, child invitations for involvement appear to be the most important means to invite parent participation. Future research should continue to investigate the utility of Hoover-Dempsey and Sandler’s model of parent involvement with specific ethnic groups, and consider family background variables due to their potentially moderating role.<br>text
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Sorice, Michael G. "Understanding Participation in Wildlife Conservation Programs on Private Lands." 2008. http://hdl.handle.net/1969.1/ETD-TAMU-2008-12-190.
Full textAbstract:
One major lesson derived from the implementation of the Endangered Species
Act (ESA) over the past 30 years is that direct regulation is not the only nor the optimal
way to protect endangered species on working lands because of an undue burden
imposed on private landowners. The role of a voluntary conservation program is to
rearrange incentives so that society bears the cost rather than the landowner. Employing
a survey research methodology, I used theories of reasoned action and random choice to
explore landowners? stated preferences for conservation programs.
I found landowners? stated interest in compensation programs to be moderate at
best. For those willing to consider programs involving endangered species, associating
land management requirements for species conservation with direct benefits to the
landowner is important, but perhaps not as important as ensuring that the program
provides adequate financial incentives, consideration of the term of the program, and a
level of certainty regarding the landowner?s future obligations under the ESA.
Landowners are not a homogenous group. I identified two classes of landowners
according to preferences for program structure. One group was highly sensitive to
program structure, aside from financial incentives, while the other was likely to
participate if adequately compensated with financial and technical assistance. These
differences related to opinions on endangered species protection and dependence on their
land for income. Voluntary incentive programs increasingly are a popular tool to maintain and
enhance conservation; however, these programs are only successful insofar as
landowners choose to enroll. This research demonstrates that improving recovery efforts
on private lands requires program administrators to have a more complete understanding
of landowners? views on endangered species and conservation programs in general, as
well as their motivations for owning and operating their land. By doing so, programs
with broader appeal and greater efficacy can be designed and implemented.