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Relevant bibliographies by topics / Variational tasks / Dissertations / Theses

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Dissertations / Theses on the topic 'Variational tasks'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Периг, А. В., И. А. Матвеев та Н. А. Лимаренко. "Постановка вариационных задач для равноканального пластического течения". Thesis, Видавництво СумДУ, 2012. http://essuir.sumdu.edu.ua/handle/123456789/27598.

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Sghaier, Maissa. "Clinical-task based reconstruction in Digital Breast Tomosynthesis." Electronic Thesis or Diss., université Paris-Saclay, 2020. http://www.theses.fr/2020UPASG040.

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La reconstruction en tomosynthèse numérique du sein est considérée comme un problème inverse, pour lequel les méthodes itératives régularisées permettent de fournir une bonne qualité d'image. Bien que la tâche clinique joue un rôle crucial lors de l’examen des images par le radiologue, elle n'a pas été jusqu'à présent directement prise en compte dans le processus de reconstruction des images de tomosynthèse. Dans cette thèse, nous introduisons une nouvelle formulation variationnelle de la reconstruction des images en tomosynthèse numérique du sein qui intègre la tâche clinique du radiologue, n

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3

Cornish, Kim M. "Variations in spatial cognition in adults and children : influence of handedness, familial sinistrality and sex." Thesis, Royal Holloway, University of London, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.242847.

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4

Tareen, Shahwali Khan. "Analyse moléculaire des canaux potassiques task dans l'aldostéronisme primaire humain." Thesis, Paris 6, 2014. http://www.theses.fr/2014PA066056.

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L'hyperaldostéronisme primaire (HAP) est la plus fréquente cause identifiable de l'hypertension, et résulte de la production autonome d'aldostérone par les glandes surrénales. Chez la souris, la délétion génétique des canaux TASK1 et TASK3 provoque des changements biochimiques qui imitent HAP humain. Ces canaux permet la sortie de K+ et polarise le potentiel de la membrane des cellules glomérules. Nous avons étudié la variation et l'expression de KCNK3 et 9 chez l'homme. Notre étude d'association à montré aucune association d'HAP avec n'importe quel SNP au niveau de l'ensemble du génome. Le sé

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5

Zybrands, Helena. "An investigation of linguistic and cultural variation in the understanding and execution of academic writing tasks." Thesis, Link to the online version, 2007. http://hdl.handle.net/10019/1989.

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6

Spaeder, Nancy Joan. "Adolescent communication strategies and patterns in a collaborative task : variations by gender /." free to MU campus, to others for purchase, 2000. http://wwwlib.umi.com/cr/mo/fullcit?p3025671.

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7

Rostamzadeh, Negar. "Video Scene Understanding: Semantic-based representation, Temporal Variation Modeling, Multi-Task Learning." Doctoral thesis, Università degli studi di Trento, 2017. https://hdl.handle.net/11572/368321.

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One of the major research topics in computer vision is automatic video scene understanding where the ultimate goal is to build artificial intelligence systems comparable with humans in understanding video contents. Automatic video scene understanding covers many applications including (i) semantic functional complex scene categorization, (ii) human body-pose estimation in videos, (iii) human fine-grained daily living action recognition, (vi) video retrieval, and genre recognition. In this thesis, we introduce computer vision and pattern analysis techniques that outperform the state of art of t

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8

Rostamzadeh, Negar. "Video Scene Understanding: Semantic-based representation, Temporal Variation Modeling, Multi-Task Learning." Doctoral thesis, University of Trento, 2017. http://eprints-phd.biblio.unitn.it/2043/1/NegarThesis.pdf.

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One of the major research topics in computer vision is automatic video scene understanding where the ultimate goal is to build artificial intelligence systems comparable with humans in understanding video contents. Automatic video scene understanding covers many applications including (i) semantic functional complex scene categorization, (ii) human body-pose estimation in videos, (iii) human fine-grained daily living action recognition, (vi) video retrieval, and genre recognition. In this thesis, we introduce computer vision and pattern analysis techniques that outperform the state of art of

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9

Tareen, Shahwali Khan. "Analyse moléculaire des canaux potassiques task dans l'aldostéronisme primaire humain." Electronic Thesis or Diss., Paris 6, 2014. http://www.theses.fr/2014PA066056.

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L'hyperaldostéronisme primaire (HAP) est la plus fréquente cause identifiable de l'hypertension, et résulte de la production autonome d'aldostérone par les glandes surrénales. Chez la souris, la délétion génétique des canaux TASK1 et TASK3 provoque des changements biochimiques qui imitent HAP humain. Ces canaux permet la sortie de K+ et polarise le potentiel de la membrane des cellules glomérules. Nous avons étudié la variation et l'expression de KCNK3 et 9 chez l'homme. Notre étude d'association à montré aucune association d'HAP avec n'importe quel SNP au niveau de l'ensemble du génome. Le sé

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10

Genao, Ana. "False memories evidence for unintentional processing of semantically related words using a Stroop variation task /." Diss., Connect to the thesis, 2005. http://thesis.haverford.edu/117/01/2005GenaoA.pdf.

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11

Skorniakova, Oxana G. "Sensitivity to sub-phonemic variation: Evidence from a Visual Analogue Scale (VAS) goodness-rating task." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1290127664.

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12

Roberts, Jonathan E. "Sex Differences on a Mental Rotation Task: Variations in Hemispheric Activation Between Children and College Students." Thesis, Virginia Tech, 1998. http://hdl.handle.net/10919/31573.

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The area of cognitive research that has produced the most consistent sex differences is the area of spatial ability. Particularly, males usually perform better on mental rotation tasks than do females. One argument for these differences is that experience with spatial activity drives these differences, such that traditionally more masculine activities require more practice of spatial abilities. Another argument is biological in nature, such that there is either 1) a critical period of development that leads to differential lateralization of the brain, or 2) differential activation of the br

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13

Berwick, Richard. "The effect of task variation in teacher-led groups on repair of English as a foreign language." Thesis, University of British Columbia, 1988. http://hdl.handle.net/2429/29230.

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An experiment was conducted to determine how learners and teachers of English as a foreign language in Japan cooperatively attempt to improve the comprehensibility of their talk in English during performance of various conversational tasks. The basic practical issue under study was the possibility that certain kinds of teacher-led groups and tasks would be more effective in generating repair and negotiation of the language by which tasks are accomplished than others, and that these group-task combinations might eventually be employed as alternatives to traditional teacher-fronted forms of fore

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14

Ens, Larisa R. "The effect of blocked and random practice schedule variations on acquisition and retention of a pattern drawing task." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ33368.pdf.

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15

Wilberschied, Lee. "The relationships among a variation of immediate recall tasks and measures of L1 writing, L2 achievement, and cognitive strategy use in students of high school Spanish /." The Ohio State University, 1998. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487951214938385.

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16

Engel, Hugues. "Dislocation et référence aux entités en français L2 : Développement, interaction, variation." Doctoral thesis, Stockholms universitet, Institutionen för franska, italienska och klassiska språk, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-38716.

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This thesis investigates the use and development of dislocations in oral productions by Swedish users of French as a second language (L2). Dislocations are highly frequent in French oral speech and play an essential role in building utterances. L2 users of French must therefore acquire the grammatical means necessary to build this structure as well as the pragmatic principles underlying its use. The study is empirical, and based on a corpus of oral productions from a wide range of non-native speakers (NNS), from beginners studying at university to L2 users who have spent many years in France.

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17

Poletti, Céline. "Les variations stratégiques dans les tâches cognitives et motrices au cours du vieillissement." Thesis, Aix-Marseille, 2016. http://www.theses.fr/2016AIXM3102.

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Des travaux récents ont montré que les relations entre le fonctionnement cognitif et sensori-moteur étaient de plus en fortes au cours du vieillissement, suggérant que des mécanismes communs seraient responsables du déclin avec l’âge des performances cognitives et sensori-motrices. Des variations quantitatives telles que la diminution avec l’âge de la vitesse de traitement ont été proposées comme cause commune pour expliquer le ralentissement cognitif et sensori-moteur. Toutefois, nous ignorons toujours comment ces variations quantitatives pourraient influencer les variations qualitatives au c

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18

Leroy, Arthur. "Multi-task learning models for functional data and application to the prediction of sports performances." Thesis, Université de Paris (2019-....), 2020. http://www.theses.fr/2020UNIP7089.

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Ce manuscrit de thèse est consacré à l’analyse de données fonctionnelles et la définition de modèles multi-tâches pour la régression et la classification non supervisée. L’objectif de ce travail est double et trouve sa motivation dans la problématique d’identification de jeunes sportifs prometteurs pour le sport de haut niveau. Ce contexte, qui offre un fil rouge illustratif des méthodes et algorithmes développés par la suite, soulève la question de l’étude de multiples séries temporelles supposées partager de l’information commune, et généralement observées à pas de temps irréguliers. La méth

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19

Kelson, Denean M. "Muscle Activation Patterns and Chronic Neck-Shoulder Pain in Computer Work." Thesis, Virginia Tech, 2018. http://hdl.handle.net/10919/83759.

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Prolonged computer work is associated with high rates of neck and shoulder pain symptoms, and as computers have become increasingly more common, it is becoming critical that we develop sustainable interventions targeting this issue. Static muscle contractions for prolonged periods often occur in the neck/shoulder during computer work and may underlie muscle pain development in spite of rather low relative muscle load levels. Causal mechanisms may include a stereotypical recruitment of low threshold motor units (activating type I muscle fibers), characterized by a lack of temporal as well as sp

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20

Flesch, Marie. "lol thats how reddit talks;) : le site américain Reddit comme espace de variation de l’anglais : étude de corpus intersectionnelle et quantitative d’usages non standard, au prisme du genre, de l’âge et de l’ethnicité." Thesis, Université de Lorraine, 2020. http://www.theses.fr/2020LORR0192.

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Cette thèse étudie les relations entre les pratiques d’écriture en ligne et le genre sur le site communautaire américain Reddit. Elle s’appuie sur un corpus de près de 20 millions de tokens comprenant les commentaires en anglais de 1044 internautes, qui inclut les contributions de 300 personnes transgenres et non binaires. Dans une perspective intersectionnelle, des variables peu souvent prises en compte dans les études sociolinguistiques quantitatives du genre, comme l’âge et l’ethnicité, ont été intégrées aux analyses. Les variables linguistiques étudiées comprennent 11 variations par rappor

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21

Fantognon, Comlan Xavier. "Analyse émergentiste des pratiques enseignantes en FLES : cas de l’appropriation de l’IFADEM au Bénin. Entre contextualisation, réflexivité et médiation." Thesis, Sorbonne Paris Cité, 2015. http://www.theses.fr/2015USPCA129/document.

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Située au carrefour de la didactique des langues et cultures et des sciences de l’éducation, la présente thèse porte sur l’appropriation, par les enseignants du cycle primaire au Bénin, de l’Initiative Francophone pour la Formation à Distance des Maîtres (IFADEM) en tant que dispositif de formation continue, en enseignement-apprentissage du FLES. L’objectif consiste à apporter des pistes pour améliorer l’appropriation du dispositif. A partir d’un modèle théorique d’appropriation, mis en place au regard d’une approche théorique transdisciplinaire et des spécificités du contexte d’étude, doublé

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22

Moreno, Teva Inmaculada. "Las secuencias formulaicas en la adquisición de español L2." Doctoral thesis, Stockholms universitet, Institutionen för spanska, portugisiska och latinamerikastudier, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-74952.

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The main purpose of this study is to observe the L2 acquisition effect of studying abroad during approximately four months in Swedish non-native speakers (NNSs) of Spanish with respect to their use of multi-word structures (MWSs) as compared to native speakers (NSs). In addition, this evolutionary study has a secondary aim which is to see the effect of the activity type on the amount and distribution of the MWSs encountered. This study shows positive effects of a study abroad period in L2 use and, particularly, regarding MWSs. It has been shown that the amount and variety of the NNSs’ MWSs

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23

Hannan, Mohammad Abdul. "Sparse Processing Methodologies Based on Compressive Sensing for Directions of Arrival Estimation." Doctoral thesis, Università degli studi di Trento, 2020. http://hdl.handle.net/11572/278178.

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In this dissertation, sparse processing of signals for directions-of-arrival (DoAs) estimation is addressed in the framework of Compressive Sensing (CS). In particular, DoAs estimation problem for different types of sources, systems, and applications are formulated in the CS paradigm. In addition, the fundamental conditions related to the ``Sparsity'' and ``Linearity'' are carefully exploited in order to apply confidently the CS-based methodologies. Moreover, innovative strategies for various systems and applications are developed, validated numerically, and analyzed extensively for different

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Hannan, Mohammad Abdul. "Sparse Processing Methodologies Based on Compressive Sensing for Directions of Arrival Estimation." Doctoral thesis, Università degli studi di Trento, 2020. http://hdl.handle.net/11572/278178.

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In this dissertation, sparse processing of signals for directions-of-arrival (DoAs) estimation is addressed in the framework of Compressive Sensing (CS). In particular, DoAs estimation problem for different types of sources, systems, and applications are formulated in the CS paradigm. In addition, the fundamental conditions related to the ``Sparsity'' and ``Linearity'' are carefully exploited in order to apply confidently the CS-based methodologies. Moreover, innovative strategies for various systems and applications are developed, validated numerically, and analyzed extensively for different

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25

Blagouchine, Iaroslav. "Modélisation et analyse de la parole : Contrôle d’un robot parlant via un modèle interne optimal basé sur les réseaux de neurones artificiels. Outils statistiques en analyse de la parole." Thesis, Aix-Marseille 2, 2010. http://www.theses.fr/2010AIX26666.

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Cette thèse de doctorat traite les aspects de la modélisation et de l'analyse de la parole, regroupés sous le chapeau commun de la qualité. Le premier aspect est représenté par le développement d'un modèle interne de contrôle de la production de la parole ; le deuxième, par le développement des outils pour son analyse. Un modèle interne optimal sous contraintes est proposé pour le contrôle d'un robot parlant, basé sur l'hypothèse du point d'équilibre (EPH, modèle-lambda). Ce modèle interne se repose sur le principe suivant : les mouvements du robot sont produits de telle façon que la longueur

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26

Conradie, David Alan. "Task structure and strategy variation in componential task analysis." Thesis, 1991. http://hdl.handle.net/10539/22941.

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A dissertation submitted to the Faculty of Arts, University of the Witwatersrand, Johannesburg, in fulfillment of the requirements of the Degree of Masters of Arts.<br>Technological advancement has changed the nature of interactions within modern man-machine systems, with workload becoming more a load on the mental capacities of the human systems component than on his/her physical capabilities. Moreover increased system capabilities may have disproportionately reduced the time available to perform these mental operations, thereby adding new and more complex cognitive tasks. A concept c

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27

Yung, Marcus. "Variation of Force Amplitude and its Effects on Muscle Fatigue." Thesis, 2011. http://hdl.handle.net/10012/5746.

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Current trends in industry are leaning towards specialized production systems and sedentary computer work tasks that are associated with low and less varying mechanical exposures. It has been suggested that physical variation is an effective intervention to reduce local fatigue and potentially musculoskeletal disorders. However, little is known in how the differences between physical variation patterns affect physiological and psychophysical responses. The general purpose of this thesis was to explore the biophysical effects of varying force amplitudes using forces, cycle times, and duty cy

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28

Chang, Pei-Cheng, and 張北晨. "Profile Adaptation for Providing Task-relevant Information by Variation of Task Needs." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/12140571024479397254.

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碩士<br>國立交通大學<br>資訊管理研究所<br>94<br>In task-based business environments, an important issue of deploying Knowledge Management System (KMS) is providing task-relevant information (codified knowledge) to fulfill the information needs of knowledge workers. In addition, workers need to access lots of textual documents in conducting knowledge-intensive tasks. Accordingly, effective knowledge management relies on using information filtering (IF) techniques to model worker's information needs as profiles and provide relevant information based on the modeled profiles. This research proposes a novel adapt

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29

"Compressive Sensing for 3D Data Processing Tasks: Applications, Models and Algorithms." Thesis, 2012. http://hdl.handle.net/1911/70314.

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Compressive sensing (CS) is a novel sampling methodology representing a paradigm shift from conventional data acquisition schemes. The theory of compressive sensing ensures that under suitable conditions compressible signals or images can be reconstructed from far fewer samples or measurements than what are required by the Nyquist rate. So far in the literature, most works on CS concentrate on one-dimensional or two-dimensional data. However, besides involving far more data, three-dimensional (3D) data processing does have particularities that require the development of new techniques in order

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30

Stein, Peter Jonathan. "Task variables in violin bowing: influence on variability of bow and bowing limb movement." Thesis, 2016. https://hdl.handle.net/2144/19562.

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To achieve expressive musical results in violin bowing, performers access wide ranges of combined musical tone loudness and duration variables. By comparison, allowable mechanical variability in bow stroke execution may be limited. Such constraints on string bowing variability similarly might limit variability of bowing limb movement. Constrained variability may carry risk of upper extremity musculoskeletal disorders. Therefore if musical and/or bowing-execution variables influence bowing limb movement variability, they may in turn influence risk of cumulative injury in the player. In two e

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31

Gonzalez, Paola. "Effects of task variation and communication medium on group performance in small groups: a comparison between FTF and CMC groups." Thesis, 2009. http://hdl.handle.net/10012/4793.

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Organizational support for cooperative work has been shifted from using Face-to-Face (FTF) communication in collocated groups to using Communication-Mediated-Communication (CMC) in dispersed groups. This new and growing form of communication has stimulated scholars to study the differences of group performance between FTF and CMC. Task categorization has been the methodology chosen for several empirical research studies. These studies conclude that the effectiveness of a communication medium for a given task depends on the degree to which there is a fit between the richness of information th

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32

Peng, Tzuling, and 彭紫羚. "The Roles and their Variation of Students during Different Group Learning Tasks in College Level General Science Courses." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/59723907926509299987.

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碩士<br>國立屏東教育大學<br>數理教育研究所<br>101<br>The purpose of this study was to explore the college students’roles and their variation during different group learning tasks in general science courses. Qualitative research was adopted in this study during the period of one semester. The subjects of this study were 36 college students in two classes. The data was collected by participant-observation, video records, tape recording of group discussions and questionnaire-survey. Based on the above data, group member’s role was divided into four types according to the participation level in discussion, includi

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33

Abara, Jose Antonio Paulino. "The effects of task demand on the contingent negative variation during working memory." 2006. http://proquest.umi.com/pqdweb?did=1192199291&sid=1&Fmt=2&clientId=39334&RQT=309&VName=PQD.

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Thesis (Ph.D.)--State University of New York at Buffalo, 2006.<br>Title from PDF title page (viewed on Feb. 21, 2007) Available through UMI ProQuest Digital Dissertations. Thesis adviser: Shucard, David W. Includes bibliographical references.

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34

Hugues, Engel. "Dislocation et référence aux entités en français L2: Développement, interaction, variation." Phd thesis, 2010. http://tel.archives-ouvertes.fr/tel-00495686.

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This thesis investigates the use and development of dislocations in oral productions by Swedish users of French as a second language (L2). Dislocations are highly frequent in French oral speech and play an essential role in building utterances. L2 users of French must therefore acquire the grammatical means necessary to build this structure as well as the pragmatic principles underlying its use. The study is empirical, and based on a corpus of oral productions from a wide range of non-native speakers (NNS), from beginners studying at university to L2 users who have spent many years in France.

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35

Houde-Archambault, Catherine. "Effet de la musique de fond sur le contrôle attentionnel : impact des variations individuelles d'anxiété." Thesis, 2020. http://hdl.handle.net/1866/24395.

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Au quotidien, nos ressources attentionnelles sont sollicitées de part et d’autre et la capacité à diriger notre attention sur une tâche et ignorer les distractions (le contrôle attentionnel) est cruciale. Pour mieux comprendre cette influence, les facteurs émotionnels pouvant moduler l’attention sont étudiés. L’omniprésence de la musique, et des émotions qu’elle induit, dans les activités quotidiennes soulève des questions quant à son effet sur cette capacité. Les résultats des études explorant l’effet de la musique de fond sur le contrôle attentionnel sont divergents, ils sont parfois nuisibl

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MAGGI, PIERO. "Sensitivity of the spatial distribution of fixations to variations in the type of task demand and its effectiveness as a trigger for adaptive automation." Doctoral thesis, 2021. http://hdl.handle.net/11573/1602682.

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High-risk environments such as healthcare, transport and air traffic control are characterised by highly dynamic, unpredictable, and uncertain events. A human operator's presence is necessary to monitor and control the system when critical events occur in these contexts. At the same time, the system should monitor the operators' functional status and support him when necessary. The proposed research activity investigates the spatial distribution of eye fixations as a real-time measure of mental workload. Ocular activity is known to be sensitive to variations in mental workload. Many attempts h

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Carrier, Pierre Luc. "Leveraging noisy side information for disentangling of factors of variation in a supervised setting." Thèse, 2014. http://hdl.handle.net/1866/11497.

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