Log in

Relevant bibliographies by topics / Circadian variations / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Circadian variations.

Dissertations / Theses on the topic 'Circadian variations'

Author: Grafiati

Published: 4 June 2021

Last updated: 14 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Circadian variations.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Sra, Sana. "Circadian Variations and Risky Decision Making." Scholarship @ Claremont, 2019. https://scholarship.claremont.edu/scripps_theses/1291.

Full text

Abstract:

Over the past decades, decision making under risk has garnered a great amount of attention both in the field of economics and psychology. Although state-dependent variabilities of risk taking are well-documented, little is known about the effects of a person’s preferred time of day, or chronotype, in risky decision making. Under circumstances of circadian mismatch (e.g., when an “early bird” makes decisions in the evening), research suggests that decision making may reflect a greater reliance on heuristics, such as using stereotypes in social judgments. However, the effects of circadian mismat

APA, Harvard, Vancouver, ISO, and other styles

2

Liu, Dennis Kuo-Chin. "Effect of circadian adenosine variations on synaptic transmission in rat hippocampal slices." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0023/MQ50459.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Chunfang, Qiu, Bizu Gelaye, Marie Denis, et al. "Placental genetic variations in circadian clock-related genes increase the risk of placental abruption." International Journal of Molecular Epidemiology and Genetics, 2016. http://hdl.handle.net/10757/607302.

Full text

Abstract:

The genetic architecture of placental abruption (PA) remains poorly understood. We examined variations in SNPs of circadian clock-related genes in placenta with PA risk. We also explored placental and maternal genomic contributions to PA risk. Placental genomic DNA samples were isolated from 280 PA cases and 244 controls. Genotyping was performed using the Illumina Cardio-MetaboChip. We examined 116 SNPs in 13 genes known to moderate circadian rhythms. Logistic regression models were fit to estimate odds ratios (ORs). The combined effect of multiple SNPs on PA risk was estimated using a weight

APA, Harvard, Vancouver, ISO, and other styles

4

Neto, Leonardo Gobbo. "Emprego de técnicas hifenadas na identificação de metabólitos secundários de \'Lychnophora ericoides\' Mart. (Asteraceae) e determinação de suas variações populacionais e temporais." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/60/60138/tde-02102008-165058/.

Full text

Abstract:

A análise pelas técnicas hifenadas CLAE-DAD-EM e CLAE-DAD-EM/EM de extratos foliares de Lychnophora ericoides Mart. levou à identificação de 34 metabólitos secundários diretamente a partir dos extratos vegetais. Destes, 19 foram relatados pela primeira vez na subtribo Lychnophorinae. Uma metodologia para extração e análise destes metabólitos por CLAE-DAD foi desenvolvida, validada e utilizada para determinação de suas variações populacionais e temporais. Perfis metabólicos bem semelhantes, com diferenças quantitativas, mas não qualitativas, foram observados entre os indivíduos de uma mesma pop

APA, Harvard, Vancouver, ISO, and other styles

5

Hatchondo, Laura. "Spectroscopie par Résonance Magnétique : Étude des variations diurnes des mesures de concentrations de métabolites cérébraux et applications cliniques." Thesis, Poitiers, 2019. http://www.theses.fr/2019POIT1804.

Full text

Abstract:

La SRM du proton (SRM-1H) est une technique d’imagerie métabolique de plus en plus utilisée en routine clinique (tumeurs cérébrales), mais aussi dans les études de neuroimagerie explorant le métabolisme cérébral des pathologies neurologiques ou psychiatriques (notamment les Troubles Obsessionnels Compulsifs TOC). Actuellement, les séquences SRM-1H sont réalisées à un temps donné, sans prise en compte de l’horaire auquel l’examen est réalisé. Or, à ce jour, nous ne pouvons pas affirmer que les concentrations de métabolites cérébraux sont stables sur 24h. Par ailleurs, nous savons que le corps h

APA, Harvard, Vancouver, ISO, and other styles

6

Bennani-Kabchi, Naïma. "Etude des variations saisonnieres de facteurs nutritionnels, hormonaux et metaboliques chez un rongeur desertique, le merion (meriones shawi)." Clermont-Ferrand 2, 1988. http://www.theses.fr/1988CLF2E407.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Coyle, Kieran. "Circadian variation in cognitive functioning." Thesis, Cardiff University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.293015.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

McQuaid, Siobhan E. "Adipose tissue function : regional and circadian variation." Thesis, University of Oxford, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.504670.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Cade, Brian E. "Variation and selection in human circadian clock genes." Thesis, University of Surrey, 2010. http://epubs.surrey.ac.uk/843712/.

Full text

Abstract:

Circadian rhythms are daily internal predictive biological cycles. Numerous studies have associated human circadian gene polymorphisms with phenotypic changes and multiple disease risks. Subsequent replications have often been negative in other populations, possibly due to poor linkage disequilibrium (LD) between the reported single nucleotide polymorphisms (SNPs) and underlying phenomena, or differing LD across populations. Alternatively, non-human circadian studies have reported population- specific effects, often expressed as latitudinal dines. Genome-wide genotyping results can produce dis

APA, Harvard, Vancouver, ISO, and other styles

10

Kohlhoff, Enno Ole. "Circadiane Variationen von Aufmerksamkeitsfunktionen bei extremen Chronotypen." Doctoral thesis, Universitätsbibliothek Leipzig, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-154780.

Full text

Abstract:

Die Leistungsfähigkeit vieler kognitiver Funktionen zeigt tageszeitliche Schwankungen, welche auf dem Zusammenspiel der im 2-Prozess-Modell der Schlafregulation beschriebenen Prozes- se basieren: dem homöostatischen Schlafdruck (Prozess S) sowie dem circadianen Schrittma- cher (Prozess C). Darüberhinaus existieren verschiedene Chronotypen, welche oftmals einen synchrony-effect, also eine bessere Leistung zu für sie optimalen Tageszeiten im Vergleich zu nicht-optimalen Tageszeiten, zeigen. In der vorliegenden Arbeit wurde untersucht, in- wieweit die Leistungsfähigkeit der mittels des Atten

APA, Harvard, Vancouver, ISO, and other styles

11

Grácio, Ana Rita Pereira. "Diel variation in movement patterns and habitat use by the near-threatened cabrera vole in mediterranean farmland." Master's thesis, Universidade de Évora, 2016. http://hdl.handle.net/10174/18612.

Full text

Abstract:

As variações circadianas no comportamento animal e o seu impacto nas populações constituem desafios importantes em ecologia e conservação. Nesta tese documentam-se as variações circadianas no uso do habitat e padrões de movimento pelo rato de Cabrera, em habitats Mediterrânicos fragmentados. O estudo baseou-se no radio-seguimento de indivíduos em habitats dominados por herbáceas e arbustos. Os resultados indicaram que a proporção de tempo despendido em deslocações, a distância percorrida, e a selecção do tipo de vegetação, estão fortemente interrelacionados, variando consideravelmente ao longo

APA, Harvard, Vancouver, ISO, and other styles

12

Soo, Lin Hoe. "Out-of-hospital cardiac arrest in Nottinghamshire." Thesis, University of Nottingham, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.341974.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Moser, P. C. "The 24-hour variation in behavioural responses to 5-HT receptor stimulation." Thesis, University of Bath, 1986. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.370467.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Louis, Caroline. "Variations circadiennes de l'excrétion urinaire des catécholamines et de substances dérivées d'amines biogènes chez l'homme, effets d'une exposition nocturne controlée au champ magnétique de très basse fréquence (50-Hz)." Paris 5, 1997. http://www.theses.fr/1997PA05P036.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Shechter, Ari. "The variation of sleep, hormones, and body temperature across circadian and menstrual phases." Thesis, McGill University, 2011. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=104650.

Full text

Abstract:

Women report insomnia more frequently than men, though the reasons for this remain unclear. Theories aiming to explain this observation have often focused on the menstrual cycle, and its associated variations in sex hormones, as a causative factor. Circadian rhythms are known to have an influence on sleep, and the expression of circadian physiology may be altered by the menstrual cycle. The aim of the current thesis was to study the interaction between menstrual and circadian processes, with a particular emphasis on how this interaction affects sleep quality, propensity, and organization, as w

APA, Harvard, Vancouver, ISO, and other styles

16

Majoy, Sean Bradford. "Circadian Rhythms and Melatonin Receptors as Sources of Individual Variation in Reproductive Photoresponsiveness." W&M ScholarWorks, 1999. https://scholarworks.wm.edu/etd/1539626215.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

DePatie, Nicholas. "Expression of Core Circadian Clock Genes Unable to Explain Changes in the Photoperiodic Timer Across Latitudinal and Altitudinal Gradients in Wyeomyia smithii." Thesis, University of Oregon, 2018. http://hdl.handle.net/1794/23149.

Full text

Abstract:

Photoperiodism is the ability of plants and animals to utilize day length or night length to mitigate seasonal exigencies. The circadian clock allows organisms to organize daily demands. Both process are set by light, and for more than 80 years a functional relationship has been pursued. Previous experiments have revealed, through phenotypic expression, that the daily circadian clock and seasonal photoperiodic timer have evolved independently, yet molecular evidence is lacking. Herein, we use the mosquito, Wyeomyia smithii, to understand the relationship between the photoperiodic response, dia

APA, Harvard, Vancouver, ISO, and other styles

18

Ponchaux, Christian. "Variations spontanees des concentrations seriques des hormones thyroidiennes et thyreotrope au cours du nycthemere." Lille 2, 1989. http://www.theses.fr/1989LIL2M102.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Sayer, Tamsin. "Variation in central serotoninergic 5-HT1B function through the light-dark cycle : effect of chronic antidepressant treatment." Thesis, University of Bath, 1994. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239953.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

McIntosh, Bridgett J. "Circadian and Seasonal Variation in Pasture Nonstructural Carbohydrates and the Physiological Response of Grazing Horses." Diss., Virginia Tech, 2006. http://hdl.handle.net/10919/27742.

Full text

Abstract:

Nonstructural carbohydrates (NSC), which includes sugars, starches and fructans in pasture forages, undergo circadian and seasonal variation which has direct effects on metabolism in grazing horses. Increased intake of NSC is implicated in the development of digestive and metabolic disorders, such as laminitis. A series of five studies at Virginia Techâ s M.A.R.E. Center in April, May, August, and October 2005, and January 2006, examined circadian and seasonal variability in forage NSC content and metabolic and digestive variables in horses over a 36 h sampling period. Fourteen mares were ran

APA, Harvard, Vancouver, ISO, and other styles

21

Holm, Karl. "Studies on Natural Variation and Evolution of Photoperiodism in Plants." Doctoral thesis, Uppsala universitet, Evolutionär funktionsgenomik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-119269.

Full text

Abstract:

Photoperiodism refers to the organism’s ability to detect and respond to seasonal changes in the daily duration of light and dark and thus constitutes one of the most significant and complex examples of the interaction between the organism and its environment. This thesis attempts to describe the prevalence of variation in a photoperiodic response, its adaptive value, and its putative genetic basis in a common cruciferous weed, Capsella bursa-pastoris (Brassicaceae). Furthermore, the thesis presents a first comprehensive comparative overview of the circadian clock mechanism in an early land pl

APA, Harvard, Vancouver, ISO, and other styles

22

LE, FUR CATHERINE. "Interaction entre le stress et les variations nycthemerales sur le metabolisme des lipides (doctorat : nutrition)." Lille 2, 1999. http://www.theses.fr/1999LIL2T014.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

LACERDA, Carlos Henrique Figueiredo. "A Importância das praias para o desenvolvimento inicial de assembleias de peixes e macrocrustáceos: variação espaço-temporal da ictiofauna em praias adjacentes a um estuário tropical (Resex Acaú-Goina PE/PB, Brasil)." Universidade Federal de Pernambuco, 2014. https://repositorio.ufpe.br/handle/123456789/18855.

Full text

Abstract:

Submitted by Caroline Falcao (caroline.rfalcao@ufpe.br) on 2017-05-22T17:05:47Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Tese_Lacerda2014 (versão BC).pdf: 15671958 bytes, checksum: bd96e677f6b27688458828455de7708d (MD5)<br>Made available in DSpace on 2017-05-22T17:05:47Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Tese_Lacerda2014 (versão BC).pdf: 15671958 bytes, checksum: bd96e677f6b27688458828455de7708d (MD5) Previous issue date: 2014<br>As zonas costeiras são consideradas áreas

APA, Harvard, Vancouver, ISO, and other styles

24

Müller, Niels [Verfasser], and Maarten [Akademischer Betreuer] Koornneef. "Natural variation in circadian rhythms and photoperiodic flowering in tomato and its wild relatives / Niels Müller. Gutachter: Maarten Koornneef." Köln : Universitäts- und Stadtbibliothek Köln, 2014. http://d-nb.info/1072500507/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Barbot, Willy. "Variation circadienne et induction avec l'âge de l'expression d'un rétrotransposon IAP de souris : caractérisation du site d'insertion proviral et "effet de position"." Paris 6, 2002. http://www.theses.fr/2002PA066022.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Rajab, Mazen [Verfasser], Reinhard H. [Akademischer Betreuer] Neubert, and Michael [Akademischer Betreuer] Dittgen. "Development of metformin tablet that mimics the circadian variation of glucose levels / Mazen Rajab. Betreuer: Reinhard H. Neubert ; Michael Dittgen." Halle, Saale : Universitäts- und Landesbibliothek Sachsen-Anhalt, 2013. http://d-nb.info/1036406431/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Adikari, Mudiyanselage Jayantha Bandara Adikari. "DNA Sequence and Haplotype Variation Analyses of Circadian Clock Genes and Their Effects on Phenotypes in the Turkey, Meleagris gallopavo." Diss., Virginia Tech, 2012. http://hdl.handle.net/10919/49550.

Full text

Abstract:

Present study was planned to compare the phenotypic variation of performances traits among commercial (CC) and heritage varieties of turkeys. Information about heritage turkey varieties continues to be limited. In addition, the emerging turkey genome sequence provides a unique opportunity to understand the DNA sequence variation and its associations with performance traits. The turClock, turPer3, turCry1 and turCry2 genes were screened and evaluated for its association with their performance traits. As expected, CC turkeys were superior to heritage birds in performance for most of the traits e

APA, Harvard, Vancouver, ISO, and other styles

28

Pompanon, François. "L'activité locomotrice chez les trichogrammes (hyménoptères parasitoïdes) : variations circadiennes, variabilité génétique et épigénétique, implications dans la structure des populations." Lyon 1, 1995. http://www.theses.fr/1995LYO10034.

Full text

Abstract:

Chez les insectes parasitoides, l'activite locomotrice joue un role essentiel dans le deroulement du cycle de vie en intervenant dans la recherche de partenaires sexuels et d'hotes. L'activite locomotrices et ses variations temporelles circadiennes sont caracterisees chez des parasitoides oophages du genre trichogramma (hymenoptera: trichogrammatidae), ainsi que leurs variations genetiques et epigenetiques. Un systeme automatique d'analyse d'images effectuant le suivi individuel de plus de 80 insectes simultanement, pendant plusieurs jours, permet la mesure des rythmes d'activite. Sous photope

APA, Harvard, Vancouver, ISO, and other styles

29

Mennecier, Isabelle. "L'excretion urinaire des pyridinolines chez le sujet normal : variations nycthemerales chez le sujet age carence en vitamine d : evolution sous supplementation vitaminique." Amiens, 1991. http://www.theses.fr/1991AMIEM085.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Mitani, Satoko. "Circadian variation of cardiac autonomic nervous profile is affected in Japanese ambulance men with a working system of 24-hour-shifts." 京都大学 (Kyoto University), 2005. http://hdl.handle.net/2433/144433.

Full text

Abstract:

Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(社会健康医学)<br>甲第11939号<br>社医博第10号<br>新制||社医||3(附属図書館)<br>23728<br>UT51-2006-B118<br>京都大学大学院医学研究科社会健康医学系専攻<br>(主査)教授小泉昭夫, 教授川村孝, 教授平出敦<br>学位規則第4条第1項該当

APA, Harvard, Vancouver, ISO, and other styles

31

Guette, Marie. "Mécanismes neuromusculaires responsables des variations diurnes du moment musculaire : impact sur la performance motrice." Dijon, 2005. http://www.theses.fr/2005DIJOS042.

Full text

Abstract:

L'objectif des trois premières études était (i) d'identifier les mécanismes sous-jacents responsables des variations de moment au cours de la journée et d'évaluer l'influence de l'activité journalière sur les variations du moment de flexion plantaire. Les résultats montrent une diminution du moment produit par le triceps sural le soir dans des conditions d'activité normale du fait d'un état de fatigue plus important. Elle serait liée à une altération de la commande nerveuse du muscle soléaire. Une réduction de l'activité journalière atténue l'état de fatigue et permet d'observer une augmentati

APA, Harvard, Vancouver, ISO, and other styles

32

Cannistraci, Carlo Vittorio, Tuomo Nieminen, Masahiro Nishi, et al. ""Summer Shift": A Potential Effect of Sunshine on the Time Onset of ST‐Elevation Acute Myocardial Infarction." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2018. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-235086.

Full text

Abstract:

Background: ST-elevation acute myocardial infarction (STEMI) represents one of the leading causes of death. The time of STEMI onset has a circadian rhythm with a peak during diurnal hours, and the occurrence of STEMI follows a seasonal pattern with a salient peak of cases in the winter months and a marked reduction of cases in the summer months. Scholars investigated the reason behind the winter peak, suggesting that environmental and climatic factors concur in STEMI pathogenesis, but no studies have investigated whether the circadian rhythm is modified with the seasonal pattern, in particular

APA, Harvard, Vancouver, ISO, and other styles

33

Amaral, João Homero do. "Variações diárias, sazonais e intraespecíficas em Piper solmsianum." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/46/46135/tde-18122008-114818/.

Full text

Abstract:

Os extratos de média polaridade de sete indivíduos de Piper solmsianum coletados em diferentes localidades foram analisados por cromatografia líquida de alta eficiência para se verificar diferenças quantitativas na concentração relativa de apiol, dilapiol, miristicina, grandisina, elemicina, isoelemicina e lignana tetraidrofurânica rel- (7R, 8R, 7\'R, 8\'R)-3,4,3\',4\'-dimetilenodioxi-5,5\'-dimetoxi-7,7\'-epoxilignana. Todos os perfis cromatográficos consistiam de apenas dois, três ou quatro picos majoritários. O(s) composto(s) majoritário(s) era(m) distinto(s) de planta para planta, e em um d

APA, Harvard, Vancouver, ISO, and other styles

34

Bruyant, Flavienne. "Variations circadiennes et spatiales de la photosynthèse : Étude dans différentes conditions hydrologiques et trophiques." Paris 6, 2002. http://www.theses.fr/2002PA066060.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Kohlhoff, Enno Ole [Verfasser], Martina [Akademischer Betreuer] Rieger, Matthias [Akademischer Betreuer] Schroeter, Arno [Gutachter] Villringer, and Hubertus [Gutachter] Himmerich. "Circadiane Variationen von Aufmerksamkeitsfunktionen bei extremen Chronotypen / Enno Ole Kohlhoff ; Gutachter: Arno Villringer, Hubertus Himmerich ; Martina Rieger, Matthias Schroeter." Leipzig : Universitätsbibliothek Leipzig, 2014. http://d-nb.info/1238789978/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Dehez, Marion. "Utilisation de modèles non linéaires à effets mixtes pour l'étude des variations nycthémérales de pression artérielle chez l'hypertendu essentiel traité et non traité." Poitiers, 2009. http://www.theses.fr/2009POIT1403.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Boyez-Canon, Chantal. "Variations d'origines pathologiques et physiologiques temporelles des sous-populations lymphocytaires humaines évaluées à l'aide d'anticorps monoclonaux." Paris 11, 1988. http://www.theses.fr/1988PA112359.

Full text

Abstract:

Cette thèse présente l'étude des changements d'origine pathologique et les variations physiologiques temporelles des sous-populations lymphoïdes humaines évaluées à l'aide d'anticorps monoclonaux. Les techniques employées consistent en la caractérisation des épitopes membranaires des cellules, par des méthodes d'immunofluorescence. L'analyse est effectuée, soit en microscopie optique, soit en cytométrie en flux. Les méthodes statistiques utilisées en chronobiologie sont le test t, le cosinor et l'analyse de variance (ANOVA). Nous avons ainsi mis en évidence l'expression de l'antigène CALLA sur

APA, Harvard, Vancouver, ISO, and other styles

38

Anwer, Muhammad Usman [Verfasser], and George [Akademischer Betreuer] Coupland. "Natural variation in the Arabidopsis thaliana circadian clock as a determinant of flowering time: a quantitative genetics and genomics study / Muhammad Usman Anwer. Gutachter: George Coupland." Köln : Universitäts- und Stadtbibliothek Köln, 2012. http://d-nb.info/105299346X/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Rhoden, Chad Allen. "Circadian variation and the benefits of exercise on arterial blood pressure : should timing of exercise be considered when prescribing exercise for prevention or treatment of hypertension? /." Full text available from ProQuest UM Digital Dissertations, 2007. http://0-proquest.umi.com.umiss.lib.olemiss.edu/pqdweb?index=0&did=1409506111&SrchMode=1&sid=1&Fmt=2&VInst=PROD&VType=PQD&RQT=309&VName=PQD&TS=1221060403&clientId=22256.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Pons, Marianne. "Contribution à l'étude des variations circadiennes de la fonction rénale chez le rat : application à l'étude de la chrononéphrotoxicité de la ciclosporine A." Bordeaux 2, 1997. http://www.theses.fr/1997BOR2B003.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Augusseau-Caillot, Anne. "Marqueurs biochimiques et situations de découplage du remodelage osseux : variations des marqueurs biochimiques du remodelage osseux et de leur rythme circadien dans des situations physiologiques et pathologiques de découplage des activités cellulaires ostéoblastiques et ostéoclastiques." Saint-Etienne, 1999. http://www.theses.fr/1999STET4014.

Full text

Abstract:

Les marqueurs biochimiques du remodelage osseux ont été largement utilisés dans l 'étude des maladies osseuses métaboliques caractérisées par un couplage des activités cellulaires. Peu de données existaient quant à l'utilité de ces marqueurs dans les situations de découplage que nous avons étudiées. Le découplage peut induire, soit une perte osseuse (microgravité, anorexie mentale, syndrome de Cushing), soit un gain de masse osseuse (exercice physique). Par ailleurs, les variations circadiennes (VC) des marqueurs biochimiques osseux sont assez bien décrites pour l'ostéocalcine (BGP) et les pyr

APA, Harvard, Vancouver, ISO, and other styles

42

Jauslin-Stetina, Petra. "Mechanism-Based Modeling of the Glucose-Insulin Regulation during Clinical Provocation Experiments." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-8719.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Zahirovic, Rezak, and Scott Ekman. "Circadian blood pressure within young adults in Viet Nam : An exploratory study comparing a normal blood pressure group and a prehypertension group." Thesis, Högskolan i Jönköping, Hälsohögskolan, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-27797.

Full text

Abstract:

Hypertension is a global disease that many effected people in developing countries is not aware of. Hypertension is linked with cardiovascular disease. Prehypertension is not a disease but if not correctly treated, it could develop into hypertension. The aim of the study was to investigate if there are any differences in circadian blood pressure between two study groups, one group with normal blood pressure and one group with prehypertension. This study was a explorative study and its design is based on measurements of blood pressure values and a questionnaire was used to help get the data col

APA, Harvard, Vancouver, ISO, and other styles

44

Olivier, Jean-Michel. "Rythmes de dérive des alevins en milieu fluvial : suivi dans le Rhône au niveau des prises d'eau et influence des vidanges de barrages." Lyon 1, 1992. http://www.theses.fr/1992LYO10220.

Full text

Abstract:

La derive des alevins dans le rhone a ete etudiee indirectement par la mesure du flux de poissons entraines au niveau des prises d'eau des centrales nucleaires de saint-alban et de creys-malville. En 1988 et 1989 les rythmes saisonniers et nycthemeraux de derive ont ete mis en evidence. La derive concerne les juveniles de l'annee et les effectifs captures augmentent significativement a partir de mai et decroissent a la fin du mois de novembre. Deux types de rythmes circadiens de derive sont decrits. Il existe pour les juveniles de sandre un changement de rythme de derive lorsque les poissons g

APA, Harvard, Vancouver, ISO, and other styles

45

Ezzatian, Payam. "Circadian variations in auditory perception and aging." 2006. http://link.library.utoronto.ca/eir/EIRdetail.cfm?Resources__ID=450661&T=F.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Tsai, Po-Jung, and 蔡帛蓉. "Part I:Effect of Monosodium Glutamate on Circadian Variations in Blood Amino Acid Concentrations in Men. Part II：Effect of Isoflavones-Containing Soy Protein Isolate on Lipid Metabolism and Peroxidation in Hamsters." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/42131641345996163765.

Full text

Abstract:

博士<br>國立臺灣大學<br>生化學研究所<br>88<br>Part I:Abstract Variations in concentrations of plasma and erythrocyte amino acids during the day were studied in ten healthy men fed ordinary Taiwanese meals, first without and, 1 week later with monosodium glutamate (MSG) added. MSG in amounts of 15, 40 and 45 mg/kg (total: 100 mg/kg/day) was added, respectively, to breakfast, lunch and dinner meals. Heparinized blood samples were collected over 24 hours with 1 to 3 hours intervals. The aims of the present study were (1) to determine the profile and significance of circadian variations in plasma

APA, Harvard, Vancouver, ISO, and other styles

47

Etchison, Lucas. "Diel variation in substrate preference of cyprinid fishes." 2012. http://liblink.bsu.edu/uhtbin/catkey/1666988.

Full text

Abstract:

Diel substrate preferences were tested in artificial stream experiments for six cyprinids: redfin shiner (Lythrurus umbratilis), silver shiner (Notropis photogenis), spotfin shiner (Cyprinella spiloptera), central stoneroller (Campostoma anomalum), striped shiner (Luxilus chrysocephalus), and bluntnose minnow (Pimephales notatus). We used experimental pools containing two of three substrate types (sand, cobble, and gravel) per trial to test if habitat preferences differed in day and night observations. Over 85% of specimens were observed over cobble substrate during the day, and all species sw

APA, Harvard, Vancouver, ISO, and other styles

48

Miller, Marisa Elena. "Roles for polyploidy, circadian rhythms, and stress responses in hybrid vigor." Thesis, 2014. http://hdl.handle.net/2152/30350.

Full text

Abstract:

Hybrid plants and animals, like corn and the domestic dog, grow larger and more vigorously than their parents, a common phenomenon known as hybrid vigor or heterosis. In hybrids between Arabidopsis ecotypes or species (in allotetraploids), altered expression of circadian clock genes leads to increased starch and chlorophyll content and greater biomass. In plants and animals, circadian clock regulation plays a key role in optimizing metabolic pathways, increasing fitness, and controlling responses to biotic and abiotic stresses. In the allotetraploids, the increased level of heterosis is like

APA, Harvard, Vancouver, ISO, and other styles

49

Sonderblohm, Carlos. "Diel variation in the catchability of rose shrimp, Parapenaeus longirostris, and associated species from a bottom trawl survey off the portuguese south coast." Master's thesis, 2011. http://hdl.handle.net/10400.1/3082.

Full text

Abstract:

Dissertação de mest., Aquacultura e Pescas, Faculdade de Ciências e Tecnologia, Univ. do Algarve, 2011<br>An experimental crustacean bottom trawling survey targeting the deep-water rose shrimp Parapenaeus longirostris was carried out off the south of Portugal over five 24-hour cycles. Although circadian bias in the catch rates for this fishery has been reported, no conclusive study had been carried out until now. Catch per unit effort oscillated with the time of the day. Total catches, both in numbers and weight considerably higher in daytime than at night, suggesting that the 24-hour lig

APA, Harvard, Vancouver, ISO, and other styles

50

Zhang, Rui. "Cognitive control and the underlying mechanisms in restless legs syndrome." Doctoral thesis, 2017. https://tud.qucosa.de/id/qucosa%3A30969.

Full text

Abstract:

Restless legs syndrome (RLS) is a sensory-motor disorder characterized by abnormal circadian rhythm with an increase in the severity of sensory and motor symptoms at night. Even though many neurological diseases have shown a strong nexus between motor and cognitive symptoms, to date, cognitive functions especially cognitive control in RLS has been poorly understood. Given that cognitive control is a key to leading a self-serving and successful life, including many aspects of employment, social life, and attaining long-term goals, this thesis aimed to examine cognitive control and the underlyin

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!