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1
Zeileis, Achim, David Meyer e Kurt Hornik. "Residual-based shadings for visualizing (conditional) independence". Department of Statistics and Mathematics, WU Vienna University of Economics and Business, 2005. http://epub.wu.ac.at/1122/1/document.pdf.
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Residual-based shadings for enhancing mosaic and association plots to visualize independence models for contingency tables are extended in two directions: (a) perceptually uniform HCL colors are used and (b) the result of an associated significance test is coded by the appearance of color in the visualization. For obtaining (a), a general strategy for deriving diverging palettes in the perceptually-based HCL space is suggested. As for (b), cut offs that control the appearance of color are computed in a data-driven way based on the conditional permutation distribution of maximum-type test statistics. The shadings are first established for the case of independence in 2-way tables and then extended to more general independence models for multi-way tables, including in particular conditional independence problems.Series: Research Report Series / Department of Statistics and Mathematics
2
Plantan, Tiffany Brooke. "Feeding Behavior of Wild and Captive Oxpeckers (Buphagus spp.): A Case of Conditional Mutualism". Scholarly Repository, 2009. http://scholarlyrepository.miami.edu/oa_dissertations/239.
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Mutualisms are delicately balanced partnerships and are increasingly recognized as being fundamental to patterns and processes within ecological systems. Changes to the ecological setting in which such interactions operate can disrupt this balance. By understanding the context-dependent nature of such associations, researchers can begin to understand how changes in the environment can have cascading effects on the entire community within which they occur. Oxpeckers (Buphagus spp.) feed on the ectoparasites of ungulates in sub-Saharan Africa and from the blood of ungulate wounds. Because of this dichotomy in feeding behavior, the role of oxpeckers as consistently beneficial partners of their hosts has been questioned, and it has been suggested that the concept of conditional mutualism be applied to this interaction. I combined observational studies of oxpeckers in Kruger National Park, South Africa, with experiments on oxpeckers in captivity at the Mokopane Biodiversity Conservation Centre, South Africa, to test the hypothesis that the ectoparasite cleaning service provided by oxpeckers to their hosts is context-dependent. The results of my dissertation research demonstrate that the oxpecker-ungulate association has conditional outcomes. Under certain conditions, the oxpecker-ungulate relationship is a nutritional mutualism where ungulates provide food (ticks) for oxpeckers in exchange for a cleaning service. Under other conditions, oxpeckers exploit their hosts to feed from their blood. My findings suggest that a high abundance of the tick species and tick stages oxpeckers prefer is necessary to maintaining an alignment of interests between oxpeckers and ungulates. When ungulates host few ticks of the species oxpeckers prefer, these birds will wound-feed to meet their nutritional demands. Such wound-feeding threatens the balance of the oxpecker-ungulate mutualism. Although oxpeckers frequently wound-fed in captivity, the frequency of wound-feeding events on wild host species was only 3.1% of feeding events. Whether the relationship between oxpeckers and domesticated hosts differs from that between oxpeckers and wild hosts, or if this observed difference is actually a result of researcher constraints in the wild, needs further exploration.
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Bauckmann, Jana, Ziawasch Abedjan, Ulf Leser, Heiko Müller e Felix Naumann. "Covering or complete? : Discovering conditional inclusion dependencies". Universität Potsdam, 2012. http://opus.kobv.de/ubp/volltexte/2012/6208/.
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Data dependencies, or integrity constraints, are used to improve the quality of a database schema, to optimize queries, and to ensure consistency in a database. In the last years conditional dependencies have been introduced to analyze and improve data quality. In short, a conditional dependency is a dependency with a limited scope defined by conditions over one or more attributes. Only the matching part of the instance must adhere to the dependency. In this paper we focus on conditional inclusion dependencies (CINDs).
We generalize the definition of CINDs, distinguishing covering and completeness conditions. We present a new use case for such CINDs showing their value for solving complex data quality tasks. Further, we define quality measures for conditions inspired by precision and recall. We propose efficient algorithms that identify covering and completeness conditions conforming to given quality thresholds. Our algorithms choose not only the condition values but also the condition attributes automatically. Finally, we show that our approach efficiently provides meaningful and helpful results for our use case.Datenabhängigkeiten (wie zum Beispiel Integritätsbedingungen), werden verwendet, um die Qualität eines Datenbankschemas zu erhöhen, um Anfragen zu optimieren und um Konsistenz in einer Datenbank sicherzustellen. In den letzten Jahren wurden bedingte Abhängigkeiten (conditional dependencies) vorgestellt, die die Qualität von Daten analysieren und verbessern sollen. Eine bedingte Abhängigkeit ist eine Abhängigkeit mit begrenztem Gültigkeitsbereich, der über Bedingungen auf einem oder mehreren Attributen definiert wird. In diesem Bericht betrachten wir bedingte Inklusionsabhängigkeiten (conditional inclusion dependencies; CINDs). Wir generalisieren die Definition von CINDs anhand der Unterscheidung von überdeckenden (covering) und vollständigen (completeness) Bedingungen. Wir stellen einen Anwendungsfall für solche CINDs vor, der den Nutzen von CINDs bei der Lösung komplexer Datenqualitätsprobleme aufzeigt. Darüber hinaus definieren wir Qualitätsmaße für Bedingungen basierend auf Sensitivität und Genauigkeit. Wir stellen effiziente Algorithmen vor, die überdeckende und vollständige Bedingungen innerhalb vorgegebener Schwellwerte finden. Unsere Algorithmen wählen nicht nur die Werte der Bedingungen, sondern finden auch die Bedingungsattribute automatisch. Abschließend zeigen wir, dass unser Ansatz effizient sinnvolle und hilfreiche Ergebnisse für den vorgestellten Anwendungsfall liefert.
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Meyer, David, Achim Zeileis e Kurt Hornik. "The Strucplot Framework: Visualizing Multi-way Contingency Tables with vcd". Department of Statistics and Mathematics, WU Vienna University of Economics and Business, 2005. http://epub.wu.ac.at/480/1/document.pdf.
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This paper describes the `strucplot' framework for the visualization of multi-way contingency tables. Strucplot displays include hierarchical conditional plots such as mosaic, association, and sieve plots, and can be combined into more complex, specialized plots for visualizing conditional independence, GLMs, and the results of independence tests. The framework's modular design allows flexible customization of the plots' graphical appearance, including shading, labeling, spacing, and legend, by means of graphical appearance control (`grapcon') functions. The framework is provided by the R package vcd. (author's abstract)Series: Research Report Series / Department of Statistics and Mathematics
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Hornik, Kurt, Achim Zeileis e David Meyer. "The Strucplot Framework: Visualizing Multi-way Contingency Tables with vcd". American Statistical Association, 2006. http://epub.wu.ac.at/3984/1/strucplot.pdf.
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This paper describes the "strucplot" framework for the visualization of multi-way contingency
tables. Strucplot displays include hierarchical conditional plots such as mosaic,
association, and sieve plots, and can be combined into more complex, specialized plots for
visualizing conditional independence, GLMs, and the results of independence tests. The
framework's modular design allows flexible customization of the plots' graphical appearance,
including shading, labeling, spacing, and legend, by means of "graphical appearance
control" functions. The framework is provided by the R package vcd.
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Aslan, Murat Samil. "Tracker-aware Detection: A Theoretical And An Experimental Study". Phd thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12610474/index.pdf.
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A promising line of research attempts to bridge the gap between detector and tracker by means of considering jointly optimal parameter settings for both of these subsystems. Along this fruitful path, this thesis study focuses on the problem of detection threshold optimization in a tracker-aware manner so
that a feedback from the tracker to the detector is established to maximize the overall system performance. Special emphasis is given to the optimization schemes based on two non-simulation performance prediction (NSPP) methodologies for the probabilistic data association filter (PDAF), namely, the modified Riccati equation (MRE) and the hybrid conditional averaging (HYCA) algorithm.
The possible improvements are presented in two domains: Non-maneuvering and maneuvering target tracking. In the first domain, a number of algorithmic and experimental evaluation gaps are identified and newly proposed methods are compared with the existing ones in a unified theoretical and experimental
framework. Furthermore, for the MRE based dynamic threshold optimization problem, a closed-form solution is proposed. This solution brings a theoretical lower bound on the operating signal-to-noise ratio (SNR) concerning when the tracking system should be switched to the track before detect (TBD) mode.
As the improvements of the second domain, some of the ideas used in the first domain are extended to the maneuvering target tracking case. The primary contribution is made by extending the dynamic optimization schemes applicable to the PDAF to the interacting multiple model probabilistic data association filter (IMM-PDAF). Resulting in an online feedback from the filter
to the detector, this extension makes the tracking system robust against track losses under low SNR values.
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Larson, Felicity Violet. "The association between autism spectrum conditions and psychosis". Thesis, University of Cambridge, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.648798.
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Prevel, Arthur. "Etude du conditionnement rétrograde dans une procédure de renforcement conditionné". Thesis, Lille 3, 2017. http://www.theses.fr/2017LIL30040/document.
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Chez l’espèce humaine comme pour de nombreuses autres espèces animales, lorsque des stimuli environnementaux précèdent de façon régulière la présentation d’événements importants pour un individu, ces stimuli vont acquérir sous certaines conditions la capacité à évoquer des comportements dits d’anticipation. Cette capacité est considérée par de nombreux auteurs comme ayant une haute valeur adaptative, favorisant le contact avec des événements appétitifs et permettant l’évitement d’événements aversifs. Ces dernières décennies, deschercheurs ont initié un rapprochement entre le phénomène d’anticipation et le conditionnement Pavlovien. Ce rapprochement repose à la fois sur une similarité dans les caractéristiques des événements mis en jeux mais surtout sur de nombreux effets et phénomènes semblables, amenant ces auteurs à considérer que les comportements ditsd’anticipation, d’une façon générale, reposeraient sur le processus Pavlovien. Leconditionnement Pavlovien offre une littérature extrêmement riche dont l’une des principalesquestions de recherche concerne le problème des conditions à l’apparition du processus.Parmi les hypothèses existantes, l’Hypothèse de l’Information est sans aucun doute l’une desplus importantes par son influence. Selon cette hypothèse, un apprentissage associatifPavlovien n’aura lieu que lorsqu’un événement important sera présenté de façon inattendu à un sujet, et l’apprentissage, ou les associations apprises, ne porteront que sur des stimuli prédictifs de l’événement important (i.e. permettant son anticipation). A travers deux expériences appliquant une procédure de conditionnement rétrograde à une procédure de renforcement conditionné, nous avons cherché à tester les propositions faites par cette hypothèse. Nos résultats vont directement à l’encontre de ces propositions et vont au contraire dans le sens de deux autres propositions théoriques faites sur le conditionnement Pavlovien,illustrées par le modèle SOP et l’Hypothèse du Codage Temporel. Ces deux propositions sont testées au sein d’une troisième et dernière expérience, dont les implications pour ces modèles comme pour la conceptualisation du conditionnement Pavlovien et de l’anticipation de façon générale sont discutéesIn human and non-human animals, environmental stimuli that reliably accompany the presentation of significant events are able after repeated exposures of eliciting anticipatory behaviors. Many authors underlined the adaptive value of anticipatory responses, and suggested a connection with Pavlovian conditioning. Linking anticipatory behaviors to Pavlovian conditioning is supported by the similarity in procedure (i.e. a pairing between a neutral stimulus with a significant event), but also on the common effects and phenomena, and the authors assume that Pavlovian conditioning is the process underlying the anticipation of events. This assumption is at the heart of the Information Hypothesis, and more generally of a functional and predictive perspective of Pavlovian conditioning. According to the Information Hypothesis, Pavlovian conditioning only occurs when an unexpected significant event is presented, and learning (i.e. the formation of association) would be about stimuli that allow the anticipation of the significant event. Using a backward conditioning procedure in a conditioned reinforcement preparation, we tested the assumptions made by the Information Hypothesis. The results found argue against the Information Hypothesis and, in contrast, support the assumption made by two others types of leaning models, illustrated by the Temporal Coding Hypothesis and the SOP model. The Temporal Coding Hypothesis and SOP are tested in a third experiment. Implications for Pavlovian conditioning models and anticipatory behaviors in general are discussed
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Laborda, Mario A. "An associative account for the etiology of phobias without recall of original trauma S-R associations, their extinction, and recovery /". Diss., Online access via UMI:, 2009.
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Mordaunt, Catharine Hilary. "Association between weather conditions, snow-lie and snowbed vegetation". Thesis, University of Stirling, 1998. http://hdl.handle.net/1893/2213.
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Snowbed vegetation contains both vascular plants and bryophytes. The latest snowbeds cover areas that are of predominantly, if not exclusively, bryophyte flora while the vascular plants are generally confined to the periphery of such late snowbeds. It is hypothesised that the exclusion of vascular flora from the snowbed core is the result of the shortened growing season generated by late-lying snow, which the bryophyte flora is better able to tolerate. The snowbed bryophytes cannot, however, tolerate the competition offered by the vascular flora in the peripheral areas from which they are absent. Data indicate that some of the bryophyte snowbed species are inhabiting optimal conditions in the snowbed core, rather than tolerating sub-optimal conditions. Adaptation and acclimation responses observed in peripheral vascular species indicate that these are inhabiting sub-optimal conditions in the snowbed periphery. The relationship between snow-lie and climate is examined, with to the construction and examination of a second hypothesis that snowbed loyalty in the Scottish Highlands is high, while duration of snow cover is variable. Snow-lie loyalty is the product of prevailing wind conditions, which are persistent and consistent in Scotland leading to consistency in late snowbed location, while the occurrence of mid-winter thaws at all altitudes makes duration of snow cover through accumulated snow depth much more variable. Increased zonal flow in winter has affected snow-lie in the Scottish Highlands, with a slight decrease in snow-lie duration in recent years. It is not clear whether this pattern applies to all altitudes and accumulations at higher levels, especially in the western Highlands, may be increasing as a result of steeper winter-time lapse rates. With late snowbed location varying very little, it is possible that the consequences of global warming may not necessarily mean an extinction of the late snowbed bryophytes in Scotland, which constitute an important part of Britain's montane flora.
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Brooks, Charles Kennedy. "Multiple independent implicit personality processes: a challenge to dual process theory". Thesis, Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/37309.
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This study applied the Process Dissociation Procedure (Bornstein, 2002) to test independence between personality processes represented by different implicit measurement techniques. In contrast to the commonly adopted literal view of dual processes in personality theory, the study predicted that two implicit measures (CRT-A and IAT-A) and one explicit measure (NEO-AH) of aggressive disposition would dissociate with each other in their 1) intercorrelations, 2) predictions of behavioral criteria of aggressiveness, and 3) potential moderation by situational cues. These hypotheses were generally, though not completely, supported. Most importantly, the two implicit measures dissociated in their lack of correlation and differential prediction of behavioral criteria, unaffected by changes in situational cues. As predicted, the CRT-A and the NEO-AH dissociated in their intercorrelations, predictions, and moderation by incentives. The IAT-A and the NEO-AH dissociated in their lack of intercorrelation and their differential moderation by changes in incentive conditions. As predicted, only the explicit measure was moderated by changes in incentive conditions. Unexpectedly, IAT-A and the NEO-AH were statistically indistinguishable in their prediction of behavioral criteria of aggression. The findings provided strong support for the hypotheses predicting multiple independent implicit personality processes.
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Smith, Shawn Michael. "Postconditioning manipulation of context associative strength on conditioned responding in conditioned taste aversion". Diss., Columbia, Mo. : University of Missouri-Columbia, 2006. http://hdl.handle.net/10355/4566.
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Thesis (M.A.) University of Missouri-Columbia, 2006.The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file viewed on (June 27, 2007) Includes bibliographical references.
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Barnett, Monique. "A Comparison of Simple Versus Elaborative Prompts on Acquisition of Picture Associations". OpenSIUC, 2018. https://opensiuc.lib.siu.edu/theses/2354.
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Memory, or the ability to recall previously learned information, has been evaluated among different populations. Some previous research has utilized different forms of verbal prompts to assist participants in recalling associations. These verbal prompts can be categorized as simple or elaborative. Although previous research has indicated that both forms of verbal prompts are effective in teaching individuals to relate stimulus pairs, there is currently no research that compares these prompting methods. Therefore, the current study sought to compare simple and elaborative prompts for teaching a picture-association task with four typically developing preschool children. Data suggest that elaborative prompts were more effective in teaching associations across all participants and resulted in similar levels of maintenance at 1-week and 1-month probes. Keywords. associative learning, memory, verbal prompts
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Forrest, Charlotte Louise. "An associative approach to task switching". Thesis, University of Exeter, 2012. http://hdl.handle.net/10036/3730.
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This thesis explores the behaviour of participants taking an associative approach to a task-cueing paradigm. Task-cueing is usually intended to explore controlled processing of task-sets. But small stimulus sets plausibly afford associative learning via simple and conditional discriminations. In six experiments participants were presented with typical task-cueing trials: a cue (coloured shape) followed by a digit (or in Experiment 5 a symbol) requiring one of two responses. In the standard Tasks condition (Monsell Experiment and Experiments 1-3), the participant was instructed to perform either an odd/even or a high/low task dependent on the cue. The second condition was intended to induce associative learning of cue + stimulus-response mappings. In general, the Tasks condition showed a large switch cost that reduced with preparation time, a small, constant congruency effect and a small perturbation when new stimuli were introduced. By contrast the CSR condition showed a small, reliable switch cost that did not reduce with preparation time, a large congruency effect that changed over time and a large perturbation when new stimuli were introduced. These differences may indicate automatic associative processing in the CSR condition and rule-based classification in the Tasks condition. Furthermore, an associative model based on the APECS learning algorithm (McLaren, 1993) provided an account of the CSR data. Experiment 3 showed that participants were able to deliberately change their approach to the experiment from using CSR instructions to using Tasks instructions, and to some extent vice versa. Experiments 4 & 5 explored the cause of the small switch cost in the CSR condition. Consideration of the aspects of the paradigm that produced the switch cost in the APECS model produced predictions, which were tested against behavioural data. Experiment 4 found that the resulting manipulation made participants more likely to induce task-sets. Experiment 5 used random symbols instead of numbers, removing the underlying task-sets. The results of this experiment broadly agreed with the predictions made using APECS. Chapter 6 considers an initial attempt to create a real-time version of APECS. It also finds that an associative model of a different class (AMAN, Harris & Livesey, 2010) can provide an account of some, but not all, of the phenomena found in the CSR condition. This thesis concludes that performance in the Tasks condition is suggestive of the use of cognitive control processes, whilst associatively based responding is available as a basis for performance in the CSR condition.
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Poon, Pui-lok, e 潘培樂. "The association between socioeconomic status and dental caries in preschool children: a systematic review". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2011. http://hub.hku.hk/bib/B46941873.
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Ma, Baofu. "Analyzing the Combination of Polymorphisms Associating with Antidepressant Response by Exact Conditional Test". Digital Archive @ GSU, 2005. http://digitalarchive.gsu.edu/math_theses/2.
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Genetic factors have been shown to be involved in etiology of a poor response to the antidepressant treatment with sufficient dosage and duration. Our goal was to identify the role of polymorphisms in the poor response to the treatment. To this end, 5 functional polymorphisms in 109 patients diagnosed with unipolar, major depressive disorder are analyzed. Due to the small sample size, exact conditional tests are utilized to analyze the contingency table. The data analysis involves: (1) Exact test for conditional independence in a high dimensional contingency table; (2) Marginal independence test; (3) Exact test for three-way interactions. The efficiency of program always limits the application of exact test. The appropriate methods for enumerating exact tables are the key to improve the efficiency of programs. The algorithm of enumerating the exact tables is also introduced.
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MacKenzie, Andrew. "Exploring the association between economic conditions and crime trends in Ontario, 1951-1999". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ60995.pdf.
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Orellana, Corrales Gabriela [Verfasser]. "Representations of the self : Conditions and effects of self-association / Gabriela Orellana Corrales". Tübingen : Universitätsbibliothek Tübingen, 2020. http://d-nb.info/1220689572/34.
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Krygsman, Amanda Lynn. "Peer Experiences and Depression Symptoms: Conditions of Association in Preschool, Childhood, and Adolescence". Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/37503.
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Depression is one of the most disabling mental disorders with respect to years living with symptoms and life lost prematurely. Understanding the development of depression symptoms in childhood and adolescence is important considering the increase in prevalence in adolescence and the substantial continuity of depression symptoms over time. Interpersonal perspectives on depression emphasize the interpersonal environment in the development, and remission of symptoms. In the present dissertation, the interpersonal environment focus was peer experiences. Specifically, the conditions under which peer experiences and depression symptoms were associated concurrently and longitudinally were examined in preschool, childhood, and adolescence.
Different types of peer experiences were associated with depression symptoms in specific ways. In Study 1, the type of aggression and informant mattered where relational peer victimization and depression symptoms were associated in the presence of relational aggression when data were reported by teachers. In Study 2, informant and type of peer experience mattered such that when examining competing models of directional association of peer experiences and depression symptoms, depression symptoms predicted peer rejection across reporters and depression predicted peer victimization when data were self-reported. In Study 3, the type of aggression mattered again but peer-reported peer victimization was associated with self-reported depression symptoms in the presence of overt aggression for girls concurrently and over time. The effect was stronger for those who transitioned to high school. The conditions under which peer experiences and depression symptoms were associated depended on type of aggression (i.e., relational peer victimization and relational aggression in preschool and overt aggression for girls in late childhood and adolescence), type of relationship disturbance (i.e., peer victimization and peer rejection), informant, and whether individuals transitioned to high school.
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Walford, Edward. "Changes to associative learning processes in later life". Thesis, University of Wolverhampton, 2007. http://hdl.handle.net/2436/14302.
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The present research sought to describe and explain age related changes to associative learning processes. Eleven experiments were conducted using a human conditional learning paradigm. Background data on health, lifestyle, and cognitive ability were collected and used as predictor variables in multiple regression analyses. Experiments 1 to 8 were formative, and found that older participants showed an overall age related decline in learning ability exacerbated by the number of stimuli and outcomes used, and the concurrent presentation of different problem types. Configural models of learning (e.g. Pearce, 1994, 2002) best predicted young participants’ learning whereas older people’s learning was more consistent with elemental models (e.g. Rescorla-Wagner, 1972), suggesting an age related change in generalisation processes. Those who learned problems better were also more likely to be able to articulate a rule that had helped them learn the problem. Age itself was the most predominant predictor of accuracy in these experiments. Experiments 9, 10, and 11 were multiple stage experiments that looked at the extent of pro- and retro-active interference in learning. Experiments 9 and 10 used easy and hard HCL problems to examine the role of rule induction in learning. Older participants who had learned initial discriminations better were more prone to pro-active interference in both experiments, the extent of which was predicted most reliably by fluid intelligence. Rule learning had a profound effect on participants’ predictions during the unreinforced test stage. In Experiment 9 (Easy-Hard) younger participants suffered from more retroactive interference than older people. This pattern was far less pronounced in Experiment 10, (Hard-Easy) suggesting that problem order affected the way participants generalised from rule-based knowledge. This observation is inexplicable by associative learning theories, and explanation may require a problem solving approach. Experiment 11 examined feature-based generalisation. Again older participants suffered more proactive and retroactive interference and elemental theories predicted their responses best, whereas younger participants responses were consistent with configural models of learning. In this instance, resistance to pro- and retro-active interference was predicted by fluid intelligence. Overall the research concluded that there is a demonstrable, complexity dependent change in associative learning processes in later life. It appears that humans have an increasing tendency to rely on elemental, rather than configural processes of generalisation in later life, and this leads to overgeneralisation between stimuli and an inability to resist pro- and retroactive interference in learning. This may be as a result of an inhibitory or source monitoring failure as a consequence of atrophy in the frontal lobes of the brain, although some of the learning deficits are explicable through mnemonic decline.
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Kwok, Cho-yee Joey, e 郭祖宜. "The association between socioeconomic status and eating habits among adolescents in Hong Kong". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2012. http://hub.hku.hk/bib/B50222818.
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Background: The association between socioeconomic status (SES) and diet habits has been identified in many studies across the globe. However, studies about association between SES and dietary habits are limited in Hong Kong, especially among the adolescents. Therefore, this study was proposed to identify some of the SES measures and their association between some dietary choices among this population.
Objective: The primary objectives in this study is to describe the association of diet with socioeconomic position among Hong Kong‘s adolescents, and to assess whether the results differ depending on which indicator, parental education, parental occupation and family affluence, is used.
Method: This is a cross-sessional study carried out on 21,721 participants who are in Form 1 – Form 7 from 42 schools. Demographic variables; three SES measures: highest parental education, highest parental occupation and family affluence; and consumption frequency of four food groups: vegetables; fruits; high-fat foods; junk foods and soft drink were obtained and assessed by a standardized questionnaire. In cross-sectional analysis, multivariate logistic regression was used to identify association between the four food groups intake frequency and the three SES measures.
Result: Parental education is not found to be significantly associated with sufficient consumption of vegetable nor moderate/high consumption of high-fat foods and junk foods/ soft drink. However, it is found that adolescent with the highest parental education level (post-secondary level) have a higher likelihood of consuming sufficient fruits (OR, 1.43; 95% CI, 1.24 to 1.65). Similarly to parental education, parental occupation is also found to be not significantly associated with sufficient consumption of vegetable and moderate/high consumption of high-fat foods, junk foods and soft drink. Conversely, a higher occupational status of the parent is associated with a less likelihood of the adolescent consuming sufficient amount of fruits. In terms of family affluence, a higher perceiving family economic status is found to be associated with a decrease tendency of consuming moderate-high consumption of junk foods and soft drink (OR, 0.71; 95% CI, 0.53 to 0.96).
Conclusion: This study finding does not support the use of parental education and occupation as a proxy to measure the association between SES and dietary habit. On the other hand, findings implies that subjective appraisal of one‘s family affluence is a good determinant of sufficient intake of particular food groups.published_or_final_version
Public Health
Master
Master of Public Health
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Barlow, Rachel Ann. "The public accountability of business associations under conditions of EU policy participation". Thesis, Robert Gordon University, 2014. http://hdl.handle.net/10059/1139.
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Set in the context of wider problems of EU popular legitimacy, the thesis explores a participatory model of EU policy making based around business associations as agents of participation. Policy participation implies public accountability, where there is an abundance of literature on the role of non-governmental organizations exercising mechanisms, but without a specific focus on business associations. This topic addresses the participatory role of business associations acting within an applied public accountability mechanism. The analysis of the literature leads to the identification of an accountability model grounded in the origin of the mandate to act and to judge. Applied to business associations, the model reveals newly combined conditions for the existence of public accountability, pointing notably to the reliance of external processes on internal means and the deliberate choice to act beyond legal compliance. The public quality of the outcome of the application of the model rests on structured deliberation with the wider EU public through active participation of civil society organizations and arises as questions of reputation management are addressed for business associations active in sensitive product or service sectors. As the multiplicity of actors increases, the relationships within the public affairs networks will become more complex, and the dividing lines between private commercial interests, citizens, and the state more blurred. The public accountability credentials of those actors operating through governance models in this specific context allows for clarification of purpose and transparency of outcomes, thereby providing for a model of engagement.
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Lubana, Ngiyene Emena. "L'organisation de la société paysanne et la situation du mouvement associatif coopératif dans le Tiers Monde: l'interface entre les associations rurales .le cas du Bas-Zaïre". Doctoral thesis, Universite Libre de Bruxelles, 1990. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/213113.
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Koelker, Rachel Lee Ellis Janet. "Comparing a discriminative stimulus procedure to a pairing procedure conditioning neutral social stimuli to function as conditioned reinforcers /". [Denton, Tex.] : University of North Texas, 2009. http://digital.library.unt.edu/ark:/67531/metadc12143.
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Persson, Pontus. "The association between working memory capacity and golf performance in a dual-task condition". Thesis, Högskolan i Halmstad, Akademin för hälsa och välfärd, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-45380.
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The aim of the study was to investigate the association between working memory capacity and golf performance in a dual-task paradigm. Twenty-eight golfers with ages varying from 19-58 participated in the study. The participants were instructed to, after assessing their working memory capacity with digit span tests, hit ten golf putts from varying distances in two different conditions, one single-task condition (just performing the golf putts) and one dual-task condition (golf putts plus a working memory task). In the dual-task condition the participants were given an address (including street name, postal code and city) to remember while hitting all ten putts. After hitting the putts in each condition the participants reported their perceived mental effort. Results from the study showed that participants with higher working memory capacity performed better than participants with lower working memory capacity in general, but especially in the distracted condition. Results also showed that participants with higher working memory capacity perceived less mental effort compared to participants with lower working memory capacity, especially in the distracted condition. The findings from this study indicate that working memory capacity is related to performance and mental effort exerted during performance, especially in a distracted condition.
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Wheeler, Daniel S. "Contrasting reduced overshadowing and forward blocking". Diss., Online access via UMI:, 2006.
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Fowke, Alex James. "Shame : associations with childhood maltreatment and mental health". Thesis, University of Southampton, 2008. https://eprints.soton.ac.uk/153327/.
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Research consistently reports a relationship between childhood maltreatment and the experience of psychological distress in adulthood. More recently, researchers have sought to identify the emotional consequences of these experiences. The current literature review focuses on the experience of shame. In particular, research is presented which demonstrates how childhood maltreatment, especially psychological abuse, has been associated with the experience of internalised shame. Furthermore, research is presented demonstrating an association between internalised shame the experience of psychological distress in adulthood. A burgeoning evidence base illustrates how shame partially mediates the relationship between childhood maltreatment and the experience of psychological distress in adulthood, although the review concludes that this research remains limited, and the models presented require further investigation to broaden the understanding of the role of shame in the relationship between childhood maltreatment and psychopathology. The empirical paper explores the associations between childhood maltreatment and internalised shame in a sample of participants with a diagnosis of bipolar disorder (BD; n = 35), compared with a control group of participants with no psychiatric diagnoses (n = 35). Participants completed measures of maltreatment, internalised shame, and resource loss and gain. Participants in the BD group reported significantly higher levels of internalised shame, resource loss, and most sub-types of childhood maltreatment, compared with participants in the control iii group. Internalised shame was significantly correlated with childhood emotional abuse and neglect, even when controlled for the effect of low mood and mania. The theoretical and clinical implications are discussed, and directions for further investigation are indicated.
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Hoi, Ka In. "Seasonal behaviors of PM10 and SO2 concentrations in association with the meteorological conditions of Macau". Thesis, University of Macau, 2002. http://umaclib3.umac.mo/record=b1445045.
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Yao, Gnabeli Roch. "Nature et enjeux des associations d'originaires en Côte d'Ivoire". Paris, EHESS, 2005. http://www.theses.fr/2005EHES0121.
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En Côte d'Ivoire, on note que les associations d'originaires tendent à figer l'identité ethnique par un renvoi constant des individues à leur origine villageoise. La question a alors porté sur les logiques sociales qui sous-tendent la structuration et le fonctionnement de ces associations. A partir des conditions sociales d'émergence de ces groupements d'une part et des interactions entre les productions matérielles, symboliques et idéologiques de ces associations d'autre part, la recherche éclaire le travail social par lequel ces associations mobilisent ou non les originaires autour de leurs projets. Ainsi il est apparu que la singularité de ces associations est de réaliser la modernisation villageoise en re-construisant et en essayant de faire fonctionner la relation à l'origine chez les membres. La réusssite ou l'échec de ces associations en matière de modernisation villageoise dépend de leur capacité à rendre légitime aux yeux des membres, l'engagement en faveur du lieu d'origineIn Ivory Coast we notice that hometowm associations stress on setting up the ethnic identity through the return of the individuals to their homeland. The discussion then, was about the social logics that back up the structuration and functioning of these given associations. The research enlights the social production these associations use to motivate or not their natives around their projects. First from the emerging social conditions of these groups and second from their interactions between their symbolic, ideological and material productions. Thus, it became obvious that the specificity of these associations is to implement the modernization of their homeland by rebuilding and by trying to improve the relationship between their members. As for as our homeland modernization is concernd the success or failure of these associations depend on their ability to legitimate before the members of the commitment in favour of the homeland
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Ochoa, Robert A. "Home owner associations (HOAs) should use centralization and modern knowledge management practices to effectively distribute their covenants, conditions and restrictions (CC&Rs) and to improve relations with residents". [Denver, Colo.] : Regis University, 2008. http://165.236.235.140/lib/ROchoa2008.pdf.
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Davies, Louise. "The association between pain, low mood and challenging behaviour in intellectual disability". Thesis, University of Birmingham, 2012. http://etheses.bham.ac.uk//id/eprint/3902/.
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Both volume I and II of this thesis are submitted in partial fulfilment of the requirements for the degree of Doctorate of Clinical Psychology (ClinPsyD) at the University of Birmingham. Volume I includes the research component, comprising of three papers; a literature review, empirical paper and public domain briefing document. Both the literature review and empirical paper were prepared for submission to the American Journal on Intellectual and Developmental Disabilities, although contrary to journal requirements (see Appendix A for author’s guidelines), tables and figures have been integrated into the text. Volume II includes the clinical component, comprising of five papers; a formulation of one client from two psychological perspectives, a service evaluation, a single case experimental design and two case studies. Client anonymity is ensured throughout through the use of pseudonyms which have been applied to all individuals included within each report.
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Weeden, Allisha Marie. "Associations among dietary supplement use, dietary intake, and chronic health conditions of older adults". Diss., Manhattan, Kan. : Kansas State University, 2008. http://hdl.handle.net/2097/893.
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Short, Patricia Margaret. "Association, reciprocity, sharing and dependency : conditions of access and forms of inequality beyond the market state /". [St. Lucia, Qld.], 2005. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe18178.pdf.
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Mills, William Douglas. "The association of aviator's health conditions, age, gender, and flight hours with aircraft accidents and incidents". Oklahoma City : [s.n.], 2005.
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Jimenez, Escobar Claudia. "Association of bovine viral diarrhea virus with day-7 bovine embryos produced under different culture conditions". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2002. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/NQ66111.pdf.
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Burns, Diane Sutton. "A financial analysis of a Southern California Coalition of Visiting Nurse Associations". CSUSB ScholarWorks, 1994. https://scholarworks.lib.csusb.edu/etd-project/922.
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Connor, David A. "ACUTE NICOTINE-DEPENDENT ALTERATIONS IN ASSOCIATIVE LEARNING INTERFERE WITH BACKWARDS TRACE CONDITIONED SAFETY". Diss., Temple University Libraries, 2016. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/380256.
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PsychologyPh.D.
Organisms can form safety associations with cues that predict the absence of an aversive event. This cognitive process, learned safety, is important for modulating emotional processing, as safety cues can decrease fear in the presence of previously learned danger cues. Further, there are clinical implications in understanding learned safety, as individuals with PTSD present with deficits in learned safety. Additionally, there is a well established relationship between smoking and PTSD. The link between smoking and PTSD is unclear, however one possibility is that nicotine-associated changes in cognition could facilitate PTSD symptoms, particularly by disrupting are altering learned safety. Considering that nicotine has been shown to modulate associative learning, including hippocampus-dependent forms of fear learning, we hypothesized that nicotine administration could cause maladaptive associative learning to occur, leading to altered safety learning. In the present study, mice were administered acute nicotine and trained and tested in two forms of cued safety learning, explicitly unpaired and backwards trace conditioning. To test for conditioned inhibition of fear by safety cues we performed summation testing. Summation testing indicated that acute nicotine did not impact unpaired learned safety, but did disrupt backwards trace conditioned safety. Additionally, chronic nicotine was found to have no effect on backwards trace conditioned safety, suggesting the development of tolerance. Importantly, on a separate test in which the backwards trace conditioned stimulus was presented alone in a novel context, acute nicotine administration was found to facilitate a fear association with the backwards trace conditioned stimulus. Therefore, acute nicotine prevented backwards trace conditioned safety, by facilitating the formation of a maladaptive fear association. Finally, we found that infusion of nicotine into the dorsal hippocampus and medial prefrontal cortex resulted in similar maladaptive behavioral patterns in summation testing. These findings are discussed with respect to how nicotine can alter cognition and the role alterations in cognition may play PTSD.
Temple University--Theses
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Anderson, Lauren C. "Prefrontal Cortex Circuitry in Sex Differences of Context-Mediated Renewal of Appetitive Pavlovian Conditioned Responding". Thesis, Boston College, 2017. http://hdl.handle.net/2345/bc-ir:107602.
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Thesis advisor: Gorica D. PetrovichLearned associations are formed when cues from the environment are paired with biologically important events and can later drive appetitive and aversive behaviors. These behaviors can persist and reappear after extinction because the original learned associations continue to exist. In particular, cues previously associated with food can later stimulate appetite and food consumption in the absence of hunger. Renewal, or reinstatement, of extinguished conditioned behaviors may help explain the mechanisms underlying persistent responding to food cues and difficulty associated with changing unhealthy eating habits. The aim of this dissertation was to determine key components in the neural circuitry mediating renewal of responding to food cues. The main focus was on the ventromedial prefrontal cortex (vmPFC; includes the infralimbic (ILA) and prelimbic (PL) areas) because that region was selectively recruited during context-dependent renewal (Chapter 3). In all of the experiments, the behavior and neural substrates of male and female rats were compared. It was important to examine both males and females because sex differences in context-mediated renewal were recently established: males consistently show renewal responding while females fail to do so (Chapters 2 and 3). The first study in this dissertation examined whether behavioral sex differences were driven by estradiol (Chapter 2) and whether the vmPFC is recruited during renewal responding (Fos induction; Chapter 3). Then, to establish the vmPFC is causal in driving the behavioral responding during renewal in a sex-specific way (Chapter 4), the vmPFC was silenced in males and stimulated it in females. This was accomplished using a chemogenetic methodology, DREADDs (Designer Receptors Exclusively Activated by Designer Drugs). Inhibiting the vmPFC in males blocks renewal responding. Reversely, stimulating the vmPFC in females resulted in renewal of responding. To determine key components of the vmPFC circuitry mediating renewal and whether these were different in males and females the experiments in Chapter 5 examined activation of PL inputs using a retrograde tract tracing combined with Fos detection design. The pathways to the PL from the ventral hippocampal formation (subiculum and CA1), the thalamus (anterior paraventricular nucleus), and the amygdala (anterior basolateral nucleus) were recruited in males and not recruited in females. This lack of recruitment could explain the lack of behavioral responding during renewal for females. Taken together, there are distinct and sex-specific circuitries recruited during context-mediated renewal. The findings from these experiments advanced our understanding of the neural mechanisms underlying sex differences in associative memory and contextual processing. They are also important for our understanding of the resilience of food cue to influence our consumption and diet choices
Thesis (PhD) — Boston College, 2017
Submitted to: Boston College. Graduate School of Arts and Sciences
Discipline: Psychology
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Gontijo, Guerra Samantha. "Affections dermatologiques et troubles dépressifs : leur association chez les personnes âgées du Québec". Mémoire, Université de Sherbrooke, 2014. http://savoirs.usherbrooke.ca/handle/11143/107.
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Résumé : Les liens entre les maladies dermatologiques et les troubles de santé mentale, dont la dépression, sont reconnus depuis longtemps. Cependant, peu d’études de population ont examiné cette problématique et aucune n’a été faite auprès des aînés. Le but de ce mémoire est d’explorer l’association entre les affections dermatologiques et les troubles dépressifs chez les personnes âgées vivant à domicile. Pour ce faire, deux études ont été réalisées. La première visait à décrire les caractéristiques dermatologiques de la population à l’étude et la deuxième avait pour but de tester l’hypothèse d’une association bidirectionnelle entre les problèmes mentionnés. Il s’agit d’une analyse secondaire des données de l’Enquête sur la Santé des Aînés (ESA) qui a été menée auprès d’un échantillon représentatif de la population âgée (≥ 65 ans) vivant à domicile au Québec. Des mesures répétées à un an d’intervalle (T1 et T2) ont été obtenues auprès de 2 cohortes successives fixes. Les données de l’enquête ESA ont été appariées à celles des registres de la Régie de l’assurance maladie du Québec (RAMQ). Les troubles dépressifs ont été définis en se basant sur les critères du DSM-IV et les affections dermatologiques ont été mesurées à partir de deux sources de données (enquête et registres administratifs de la RAMQ). Des modèles autorégressifs bivariés ont été utilisés pour tester l’hypothèse d’association bidirectionnelle entre les affections dermatologiques et les troubles dépressifs. Nos résultats ont montré que près de 13% et 21% des répondants ont rapporté des affections dermatologiques auto-rapportées ou avaient été diagnostiqués selon les registres de la RAMQ. En plus, près de 6% des participants rapportaient un trouble dépressif probable au T1 et au T2. Nos résultats suggèrent la présence d’une association synchronique (transversale) entre les affections dermatologiques et les troubles dépressifs. Ce projet souligne l’importance d’évaluer et d’explorer la cooccurrence de ces deux pathologies afin d’améliorer la prise en charge des individus atteints simultanément par ces deux problèmes. Nous suggérons l'inclusion des affections dermatologiques dans les futures études épidémiologiques visant à explorer les liens entre les troubles de santé mentale et de santé physique chez les personnes âgées.//Abstract : The relationship between skin conditions and mental health disorders, which includes depression, has long been recognized. However, few population - based studies have examined this issue and none were carried out in older - adults. The aim of this project was to explore the associations between skin conditions and depressive disorders affecting the elderly living at home. To do this, two studies were conducted; the first aimed to describe the dermatological features of the study population. The second was designed to test the hypothesis of a bidirectional association between the conditions mentioned above. We carried out secondary data analyses from data collected in the Study on the Health of Seniors (ESA ) survey, which consisted of a representative sample of the elderly population (≥ 65 years) living at home in Quebec. Two repeated measurements one year apart (T1 and T2) were obtained from two fixed successive cohorts. Participants in both phases of the investigation and with available health service information from Quebec’s health insurance plan agency (Régie de l'assurance maladie du Québec - RAMQ) were selected for this project. Depressive disorders were defined based on DSM - IV criteria and dermatological conditions were measured from two data sources (survey and administrative records). Cross - lagged panel models were used to test the hypothesis of association between the two mentioned conditions. Our results showed that nearly 13% and 21% of respondents have self - reported and diagnosed skin conditions, respectively. In addition, about 6% of participants reported symptoms that were consistent with a probable depressive disorder on T1 and T2. Our results suggested the presence of synchronous (cross - sectional) associations between skin conditions and depressive disorders in the elderly. This research highlights the importance of assessing and exploring the co - occurrence of these two conditions to improve the management of individuals who are affected. We suggest the inclusion of dermatological conditions in future/further studies exploring the comorbidity between mental and physical health in the older adults.
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Hadj-Bouziane, Fadila. "Rôle des ganglions de la base dans l'apprentissage associatif conditionnel : une approche multidisciplinaire". Phd thesis, Université Claude Bernard - Lyon I, 2003. http://tel.archives-ouvertes.fr/tel-00006160.
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Avec l'expérience, nous acquérons une panoplie de règles, associations arbitraires entre des stimuli externes et des actes moteurs, qui nous permettent d'adapter notre comportement à l'environnement (apprentissage associatif conditionnel). Ce type d'apprentissage met en jeu les boucles reliant les ganglions de la base (GGB) et le cortex frontal. Ce travail visait à préciser le rôle des GGB dans l'apprentissage de règles visuo-motrices conditionnelles en utilisant plusieurs approches : 1) l'enregistrement de l'activité des neurones du striatum chez le singe éveillé, 2) l'étude chez des patients atteints de la maladie de Parkinson (une pathologie neurodégénérative touchant les GGB) et 3) la neuroimagerie fonctionnelle chez l'homme sain. Les résultats des trois expériences convergent pour indiquer que les GGB sont impliqués à la fois dans l'acquisition et la rétention des associations visuo-motrices.
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Caron, Jean-François. "Les conditions de l'unité dans les fédérations multinationales : vers un sentiment d'appartenance à une association politique libre". Thesis, Université Laval, 2010. http://www.theses.ulaval.ca/2010/27563/27563.pdf.
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Hintz, Leslie Diane. "Association of Salmonella enterica serotype Newport with Tomato Plants through Irrigation Water, Grown under Controlled Environmental Conditions". Thesis, Virginia Tech, 2008. http://hdl.handle.net/10919/35956.
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Tomato fruit have been associated with numerous outbreaks of salmonellosis in recent years. Trace back suggests tomato fruit may become contaminated during pre-harvest, however exact routes are unclear. The objective of this study was to determine the potential for Salmonella enterica serotype Newport to be associated with the roots, leaves, stems, and ultimately fruit of red round tomato plants through contaminated irrigation water, at various stages of plant development, when grown under controlled environmental conditions. Tomato plants were individually root irrigated with 250 or 350 ml (depending on growth stage) of 7 log CFU/ml S. Newport contaminated irrigation water every seven days. Presence of the pathogen in plant tissue was evaluated at five growth stages; 14 days post transplant, early fruit, mid fruit, full fruit, and terminal stages. At each stage, roots, stems, leaves, and two tomato fruit, if present, from four S. Newport and four water irrigated (negative control) tomato plants were sampled for S. Newport contamination. Association of S. Newport was detected in tomato roots and stems using both conventional plating and molecular techniques. Twenty-four samples were confirmed positive for S. enterica using PCR. Sixty-five percent of the roots, 40% of the stems, 5% of the leaves and 5% of the fruit sampled were confirmed to contain S. enterica. Overall, there was significant difference in the presence of S. Newport according to tissue sampled (roots > stems > leaves and fruit) (P > 0.05). There was no correlation between growth stage and presence of S. Newport in tissues (P > 0.05). Ultimately, irrigation with S. Newport has a low probability of contaminating tomato fruit.Master of Science
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Oi, Katsuya. "Understanding the Role of Patient Activation in the Association between Patient Socio-Economic Demographics and Patient Experience". PDXScholar, 2012. https://pdxscholar.library.pdx.edu/open_access_etds/467.
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This study focuses on the association between patient characteristics, which include both demographic and contextual factors, and patients' experiences with health care. The pre-existing literature provides rich information about patients' various demographics related to patient experience. Despite the abundance of empirical evidence showing that patients' demographics do affect how they perceive their health care. However, there is little to no empirical knowledge explaining the significance of such factors. As the existing literature points out the need for taking into contextual factors such as patient's beliefs, attitudes, skills that are pertinent to dealing with health care, my study proposes patient activation as such a contextual factor that explains the association between patient demographics and patient experience. Findings suggest that patient activation is a strong predictor of two patient experience measures: patients' rating of doctor-patient communication and their self-reported difficulties in getting needed care. However, it is also observed that the mediating effects of patient activation vary by the two dimensions of patient experiences. Though this study demonstrates that promoting patient activation may be able to normalize how patients report the quality of doctor-patient interaction, further research is needed to address access to care issues.
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Vurbic, Drina. "Mechanisms of Secondary Extinction". ScholarWorks @ UVM, 2010. http://scholarworks.uvm.edu/graddis/237.
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Pavlov (1927) first reported that following appetitive conditioning of multiple stimuli, extinction of one CS attenuated responding to others which had not undergone direct extinction. Four experiments with rat subjects investigated potential mechanisms of this secondary extinction effect. Experiment 1 assessed whether secondary extinction would be more likely to occur with target CSs that have themselves undergone some prior extinction. Two CSs were initially paired with shock. One CS was subsequently extinguished before the second CS was tested. The target CS was partially extinguished for half the rats and not extinguished CS for the other half. A robust secondary extinction effect was obtained with the non-extinguished target CS. Experiment 2 investigated whether secondary extinction occurs if the target CS is tested outside the context where the first CS is extinguished. Despite the context switch secondary extinction was observed. Extinction of one CS was also found to thwart renewal of suppression to a second CS when it was tested in a neutral context. Experiment 3 examined whether secondary extinction can be attributed to mediated generalization caused by association of the CSs with a common US during conditioning. Rats received conditioning with three CSs and then extinction with one of them. Secondary extinction was observed with a shock-associated CS when the extinguished CS had been associated with either food pellets or shock, suggesting that secondary extinction is not US-specific and is thus not explained by this mediated generalization mechanism. Experiment 4 examined whether intermixing trials with the two stimuli during conditioning is necessary for secondary extinction to occur. Rats were either conditioned with intermixed trials as in Experiments 1-3, or with blocked trials of each CS presented in conditioning sessions separated by a day. Secondary extinction was observed only in the former condition. The results are consistent with the hypothesis that CSs must be associated with a common temporal context for secondary extinction to occur.
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Louvet, Nicolas. "Les conditions d'une concertation productive dans l'action publique locale : le cas des plans de déplacements urbains". Phd thesis, Ecole des Ponts ParisTech, 2005. http://tel.archives-ouvertes.fr/tel-00086554.
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Evaluée dans son intensité démocratique (information – consultation – négociation), la concertation est critiquée pour son ambiguïté. Les autorités en regrettent les effets de blocages, les usagers-citoyens la taxent d'alibi. L'enjeu d'une analyse de la concertation dans l'élaboration des Plans de déplacements urbains était d'abandonner cette posture de dénonciation en cherchant à savoir non à qui profite cette concertation mais ce qu'elle produit.Premier résultat, c'est lorsque la participation s'effectue en amont qu'elle s'avère productive, qu'elle modifie la donne. Second résultat : une concertation « ciblée » – l'autorité organisatrice dialogue avec les associations sélectionnées a priori – pondère le discours technico-politique alors qu'une concertation « révélée » – le processus fait émerger des participants inattendus – ajoute au programme de nouvelles thématiques.
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Firla, Marcin. "Automatic signal processing for wind turbine condition monitoring. Time-frequency cropping, kinematic association, and all-sideband demodulation". Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAT006/document.
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Cette thèse propose trois méthodes de traitement du signal orientées vers la surveillance d’état et le diagnostic. Les techniques proposées sont surtout adaptées pour la surveillance d’état, effectuée à la base de vibrations, des machines tournantes qui fonctionnent dans des conditions d’opération non-stationnaires comme par exemple les éoliennes mais elles ne sont pas limitées à un tel usage. Toutes les méthodes proposées sont des algorithmes automatiques et gérés par les données.La première technique proposée permet de sélectionner la partie la plus stationnaire d’un signal en cadrant la représentation temps-fréquence d’un signal.La deuxième méthode est un algorithme pour l’association des dispositions spectrales, des séries harmoniques et des séries à bandes latérales avec des fréquences caractéristiques provennant du cinématique d'un système analysé. Cette méthode propose une approche unique dédiée à l’élément roulant du roulement qui permet de surmonter les difficultés causées par le phénomène de glissement.La troisième technique est un algorithme de démodulation de bande latérale entière. Elle fonctionne à la base d’un filtre multiple et propose des indicateurs de santé pour faciliter une évaluation d'état du système sous l’analyse.Dans cette thèse, les méthodes proposées sont validées sur les signaux simulés et réels. Les résultats présentés montrent une bonne performance de toutes les méthodesThis thesis proposes a three signal-processing methods oriented towards the condition monitoring and diagnosis. In particular the proposed techniques are suited for vibration-based condition monitoring of rotating machinery which works under highly non-stationary operational condition as wind turbines, but it is not limited to such a usage. All the proposed methods are automatic and data-driven algorithms.The first proposed technique enables a selection of the most stationary part of signal by cropping time-frequency representation of the signal.The second method is an algorithm for association of spectral patterns, harmonics and sidebands series, with characteristic frequencies arising from kinematic of a system under inspection. This method features in a unique approach dedicated for rolling-element bearing which enables to overcome difficulties caused by a slippage phenomenon.The third technique is an all-sideband demodulation algorithm. It features in a multi-rate filter and proposes health indicators to facilitate an evaluation of the condition of the investigated system.In this thesis the proposed methods are validated on both, simulated and real-world signals. The presented results show good performance of all the methods
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Truman, Carissa Marie. "AUTOMATED BODY CONDITION SCORING: PROGRESSION ACROSS LACTATION AND ITS ASSOCIATION WITH DISEASE AND REPRODUCTION IN DAIRY CATTLE". UKnowledge, 2019. https://uknowledge.uky.edu/animalsci_etds/96.
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Body condition scoring is a technique used to noninvasively assess fat reserves. It provides an objective estimate to describe the current and past nutritional status of the dairy cow and has been associated with increased disease risk and breeding success. Traditionally body condition scores are taken manually by visual appraisal on a 1 to 5 scale, in one-quarter increments. However, recent studies have shown the potential of automating the body condition scoring of cows using images. The first objective was to estimate the likelihood of disease development and breeding success, using odds ratios, associated with body condition score scored automatically at various points in lactation. The second objective of our research was to use a commercially available automated body condition scoring camera system to monitor body condition across the lactation period to evaluate differences between stratified parameters and to develop an equation to predict the dynamics of the body condition score. We found that poor body condition score at different times during the transition period are associated with increased disease occurrence and lower reproductive success. Automated body condition scoring (ABCS) curve during lactation was influenced by many factors, such as parity, ABCS at time of calving, disease occurrence, and milk production.
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Asfaw, Zebene. "Tree species diversity, topsoil conditions and arbuscular mycorrhizal association in the Sidama traditional agroforestry land use, southern Ethiopia /". Uppsala : Dept. of Forest Management and Products, Swedish Univ. of Agricultural Sciences, 2003. http://epsilon.slu.se/s263-ab.html.
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Kuhn, Jill Ann. "Cue-to-consequence effects in an associative account of causal attribution". CSUSB ScholarWorks, 1993. https://scholarworks.lib.csusb.edu/etd-project/652.
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Easton, Katherine Anne. "An investigation into the nature, prevalence and severity of anxiety in heart failure patients : the association between anxiety and patient health outcomes". Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/an-investigation-into-the-nature-prevalence-and-severity-of-anxiety-in-heart-failure-patients-the-association-between-anxiety-and-patient-health-outcomes(3c2ebad9-0418-4cec-b4a6-d17784043c85).html.
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Long Term Conditions (LTCs) with co-morbid common mental health conditions of anxiety and depression present a significant challenge for UK health and social care services. Depression and anxiety are common in heart failure (HF) patient populations and research suggests depression has a detrimental effect on a range of health outcomes, including Health related Quality of Life (HRQoL). The impact of anxiety is relatively under-researched in this patient group. In this doctoral study a systematic review was conducted to consolidate the evidence base for the prevalence and variance of rates of anxiety in HF patients. Importantly, the relative contribution of anxiety symptoms, measured using the Hospital Anxiety and Depression Scale (HADS), to reported HRQoL , measured using the Kansas City Cardiomyopathy Questionnarie (KCCQ) was examined in a cross-sectional survey of 158 HF patients attending specialist HF outpatient clinics. The systematic review identified 72 studies, with reported rates of anxiety varying dramatically, ranging from 6.2% to 72.3%. The random effects pooled prevalence estimate for anxiety disorders was 13.01% (95% CI 9.3% - 16.9%), for probable clinically significant anxiety was 28.8% (95% CI 23.3% - 34.3%) and the random effects pooled prevalence estimate for elevated symptoms of anxiety was 55.5% (95% CI 48.1% - 62.8%). Not all tools used to assess anxiety were population appropriate. In the survey multivariate analysis found that anxiety symptoms, did not account for a significant proportion of unique variance in HRQoL scores. Higher levels of physical symptom burden, depression and an increased number of physical co-morbidities predominantly account for 69% of the variance in HRQoL (F13,125 = p <0.0005). The findings highlight the need for accurate and valid measurement of anxiety and depression within the context of a physical LTC. Anxiety and depression are common in HF patients and the evidence suggests depression in particular predicts reported HRQoL. Further research is required to understand more about the role of anxiety in influencing patient’s health outcomes.