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Dissertations / Theses on the topic 'Variations in flood activity'

Author: Grafiati

Published: 25 May 2024

Last updated: 31 July 2025

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1

Legrand, Caroline. "Simulation des variations de débits et de l’activité de crue du Rhône amont à partir de l’information atmosphérique de grande échelle sur le dernier siècle et le dernier millénaire." Electronic Thesis or Diss., Université Grenoble Alpes, 2024. http://www.theses.fr/2024GRALU011.

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Les crues sont des aléas naturels extrêmement destructeurs qui peuvent avoir des répercussionsconsidérables sur les écosystèmes et les sociétés. L’activité et l’intensité des crues pourraient êtreamplifiées par le changement climatique en cours. Quantifier les évolutions possibles pour les décenniesà venir est cependant difficile. L’approche classique consiste à estimer ces évolutions à partir deprojections hydrologiques obtenues par simulation à partir des scénarios météorologiques produitspour différents scénarios climatiques futurs. Ces scénarios météorologiques, qui doivent, entre autresch

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Vye, Charlotte. "Flow Field Formation and Compositional Variations of Flood Basalt Eruptions." Thesis, Open University, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.518169.

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Characterisation of three lava flow fields from the Columbia River Basalt Group (CRBG), USA, reveals compositional heterogeneity on all scales, from adjacent lava lobes to the intra-crystal scale. Simple flow fields can be traced from vent areas to distal reaches, but those with multiple-layered lobes present a degree of complexity that make lava pathways and eruption sequences difficult to identify. A 3-D model based on field investigation of a single flow field establishes a volcanological context for geochemical sampling. Compositional v.ariation within each flow field suggests that small-s

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Eriksson, Tobias. "Variations in bioavailability of dissolved organic matter during a spring flood episode in northern Sweden /." Umeå : Swedish Univ. of Agricultural Sciences, 2004. http://epsilon.slu.se/9658927.pdf.

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4

Evans, S. T. "Variations in activity and psychological well-being in unemployed young adults." Thesis, University of Manchester, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.377464.

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5

Bourne, Geoffrey S. "Actinide and fission product activity variations in inter-tidal marine macrophytes." Thesis, Cardiff Metropolitan University, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.306854.

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6

Lachowycz, Stefan M. "Records of, and controls on, temporal variations in activity at arc volcanoes." Thesis, University of Oxford, 2016. https://ora.ox.ac.uk/objects/uuid:152a237e-76d1-409e-ba6d-fbb50da87b85.

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Many attributes of volcanic activity, whether physical, geochemical/petrological, or geophysical, change over timescales from minutes to millions of years. Understanding the nature of these variations and their controls is essential both for hazard assessment and to understand volcanic and magmatic processes. Arc volcanism entails a relatively broad range of eruption styles and magma compositions, and thus wide-ranging hazards and a variety of eruption records. Despite their significance, records of activity for many arc volcanoes are inadequately characterised, so any temporal variability is

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Byrdina, Svetlana. "Anomalous Self-Potential variations related to activity of Merapi volcano (Central Java)." Paris, Institut de physique du globe, 2004. http://www.theses.fr/2004GLOB0006.

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La thèse est consacrée à l'analyse des données d'une surveillance continue du Potentiel Spontané (PS), obtenues sur le volcan Merapi, dans le but d'identifier les signaux de PS liées à l'activité volcanique. La comparaison dePS avec la météorologie montre que les propriétés les plus manifestes dans les données de PS sont produites par des variations d'infiltration d'eau de pluie et de pression atmosphérique. Les techniques spéciales de traitement des données ont été developpé pour reduire les effets météorologiquies. Pour identifier les signaux associés à l'activité volcanique, les séries temp

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8

Sahlén, Adam. "Muscle activity in m.pectoralis major during bench press variations in healthy young males." Thesis, Högskolan i Halmstad, Akademin för ekonomi, teknik och naturvetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-29361.

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Background. The bench press is a commonly used resistance training exercise for targeting the chest musculature. During hypertrophy training, different variations of bench press are often used to isolate different segments (pars clavicularis, pars sternocostalis and pars abdominals) of the chest muscle m.pectoralis major. Commonly used variations of the bench press are decline bench press (less than 0° from horizontal) and incline bench press (more than 0° from horizontal). Some research has been done into these variations of bench angle and their effect on muscle activation; however other co

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Gäddnäs, Helena. "Long-term oral nicotine treatment and daily variations in brain monoamines and motor activity." Helsinki : University of Helsinki, 2002. http://ethesis.helsinki.fi/julkaisut/mat/farma/vk/gaddnas/.

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Harrington, Debra J. "Effect of river stage variations and flood events on trace metal mobilization and transport in the Apalachicola River Basin, NW Florida." Tallahassee, Fla. : Florida State University, 2001. http://purl.fcla.edu/fsu/lib/digcoll/etd/1191553.

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O'Connell, Sophie. "Seasonal variations in lifestyle behaviours and their relationship with indicators for poor health." Thesis, Loughborough University, 2013. https://dspace.lboro.ac.uk/2134/11716.

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The increasing evidence of associations between physical activity, sedentary behaviour, sleep duration and diet and both immediate and long term health implications is of public health concern. There is a need to further our understanding of the patterns of these behaviours and how they affect poor health indicators individually and simultaneously. This thesis aims to advance the current literature by investigating associations between multiple lifestyle behaviours and indicators for poor health and identifying patterns of physical activity, sedentary behaviour, sleep duration and dietary inta

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12

Bastien, Fabienne Anne. "Empirically Interrelating Stellar Chromospheric Activity, Photometric Variability and Radial Velocity Variations to Enhance Planet Discovery." Thesis, Vanderbilt University, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=3584409.

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Jarzebowski, Léonard. "Unraveling variations in ribosome biogenesis activity in the mouse hematopoietic system at homeostasis in vivo." Thesis, Paris 6, 2016. http://www.theses.fr/2016PA066402/document.

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Les cellules souches (CS) se démarquent des progéniteurs et cellules différenciées à de nombreux égards. Notamment, les CS présentent des caractéristiques particulières dans des processus cellulaires fondamentaux, et il a été récemment proposé que la biogenèse des ribosomes (BiRi) participe à la régulation des CS. Pendant ma thèse, j’ai utilisé diverses approches pour étudier le rôle et la régulation de la BiRi dans des populations de CS, in vivo et ex vivo dans des modèles murins.Grâce à un modèle d’inactivation génétique du facteur de BiRi Notchless (Nle), j’ai participé à l’étude de son rôl

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Jarzebowski, Léonard. "Unraveling variations in ribosome biogenesis activity in the mouse hematopoietic system at homeostasis in vivo." Electronic Thesis or Diss., Paris 6, 2016. https://accesdistant.sorbonne-universite.fr/login?url=https://theses-intra.sorbonne-universite.fr/2016PA066402.pdf.

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Les cellules souches (CS) se démarquent des progéniteurs et cellules différenciées à de nombreux égards. Notamment, les CS présentent des caractéristiques particulières dans des processus cellulaires fondamentaux, et il a été récemment proposé que la biogenèse des ribosomes (BiRi) participe à la régulation des CS. Pendant ma thèse, j’ai utilisé diverses approches pour étudier le rôle et la régulation de la BiRi dans des populations de CS, in vivo et ex vivo dans des modèles murins.Grâce à un modèle d’inactivation génétique du facteur de BiRi Notchless (Nle), j’ai participé à l’étude de son rôl

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Mbao, Chabala. "An analysis of flood activity over the past century based on the sedimentary deposits in the Mfolozi floodplain." Thesis, Rhodes University, 2017. http://hdl.handle.net/10962/53711.

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Floods are natural phenomena that are of widespread interest to the scientific community, particularly in the context of understanding the impact of climate change as well as changing land use patterns and the security of infrastructure such as towns and roads. In northern KwaZulu-Natal, large flood events have been a reoccurring feature over the past century. The geographical position and extent of the region means that is affected by both inland and coastal weather phenomena, each with the potential to cause large flood events. While information pertaining to large floods in the region in th

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Towers, Christopher Michael. "The detection of conductivity variations within the human head using induced current electrical impedance tomography techniques." Thesis, University of Sheffield, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.286870.

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Cripps, Jennifer Ann. "Environmental impact of Deccan Trap flood basalt volcanism : assessment of regional floral responses to late Cretaceous-early Tertiary activity." Thesis, Open University, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.272896.

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Younes, Rabih Halim. "Toward Practical, In-The-Wild, and Reusable Wearable Activity Classification." Diss., Virginia Tech, 2018. http://hdl.handle.net/10919/83503.

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Wearable activity classifiers, so far, have been able to perform well with simple activities, strictly-scripted activities, and application-specific activities. In addition, current classification systems suffer from using impractical tight-fitting sensor networks, or only use one loose-fitting sensor node that cannot capture much movement information (e.g., smartphone sensors and wrist-worn sensors). These classifiers either do not address the bigger picture of making activity recognition more practical and being able to recognize more complex and naturalistic activities, or try to address th

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Chénier, Martin. "Impact of seasonal variations, nutrients, pollutants and dissolved oxygen on the microbial composition and activity of river biofilms." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=85144.

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Biofilm communities were cultivated in rotating annular bioreactors using water from the South Saskatchewan River. The impacts of seasonal variations, nutrients, pollutants and dissolved oxygen on the activity and composition of the biofilms were assessed by using a combination of microcosm assays and molecular biology techniques.<br>The seasonal pattern in nitrification, denitrification and hexadecane mineralization, and in the occurrence of nirK in the South Saskatchewan River biofilms was: fall greater than winter, which was equivalent to spring. Hexadecane mineralization was higher

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Humann, Michael. "Deliberation and implementation activity in forced-choice decision making environments : variations in information processing within a neurocognitive framework." Thesis, University of Liverpool, 2011. http://livrepository.liverpool.ac.uk/5653/.

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This thesis examined decision making in the context of forced-choice situations, as characterised by high-risk consequences and time-limited conditions, within an experimental decision paradigm. By mapping onto basic decision-making stages relating to evaluation, deliberation and implementation of a choice, this research looks at how environmental conditions (emotion) and information (advice) affect cognitive processing in forced-choice or “do or don’t” scenarios. In order to identify these variations on a more fundamental level, a methodological framework was developed, which incorporates neu

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Bompy, Félix. "Approche écologique et écophysiologique de l’effet des variations saisonnières sur la croissance des arbres dans les forêts côtières inondables des Antilles." Thesis, Antilles-Guyane, 2013. http://www.theses.fr/2013AGUY0674/document.

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Les forêts côtières inondables (FCI) des régions tropicales et subtropicales remplissent des fonctions écologiques nécessaires aux écosystèmes marins côtiers situés en aval et aux populations humaines vivant à proximité Aux Antilles, les mangroves et les forêts marécageuses à Pterocarpus officinalis sont structurés par des espèces ligneuses qui ont développé des adaptations particulières à la salinité, à l’inondation et aux substrats meubles sur lesquels elles reposent. Dans des contextes climatiques à forte saisonnalité, les saisons sèches prolongées entraînent de fortes variations de la sali

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Venkat, Ratnam Madineni, and Christoph Jacobi. "Study on stratospheric gravity wave activity: global and seasonal variations deduced from the CHAllenging Minisatellite Payload (CHAMP)-GPS Satellite." Wissenschaftliche Mitteilungen des Leipziger Instituts für Meteorologie ; 30 = Meteorologische Arbeiten aus Leipzig ; 8 (2003), S. 136-148, 2003. https://ul.qucosa.de/id/qucosa%3A15246.

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Global analyses of gravity wave activity in the stratosphere are presented for the first time using German Low Earth Orbit (LEO) satellite CHAMP. Temperature profiles obtained from CHAMP/GPS radio occultations are first compared with ground based instruments. In general, good agreement is found between these different techniques. Monthly mean Ep values of potential energy, Ep values, being a measure of gravity wave activity, which is estimated with radiosonde observations are compared with CHAMP/GPS data and found that radiosonde observed Ep values are higher than those estimated with radio oc

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Rawat, Rashmi. "Geomagnetic storm phenomenon as inferred from the low-latitude geomagnetic field variations and interplanetary parameters." Thesis, Indian Institute of Geomagnetism, Mumbai, 2008. http://localhost:8080/xmlui/handle/123456789/219.

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A thesis submitted to the University of Mumbai for the Ph.D. in Physics, under the guidance of Prof. Shobhana Alex.<br>Part of Conclusion : The thesis compiles the extensive analysis work done with large data set from low latitude geomagnetic observatories Alibag (Geog. Lat. 18.63◦N, long. 72.87◦E; Ge omag. Lat. 10.03◦N, Long. 145.97) and Tirunelvelli (Geog. Lat. 8.42◦N, long. 77.48◦E; Geomag. Lat. 0.57◦S, Long. 149.42) along with solar wind and interplane tary parameters, covering the solar cycle-23. Investigations are carried out on diverse modulations exhibited by the meridional (Bz) and zo

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Alapini, Odunlade Aude Ekundayo Pauline. "Transiting exoplanets : characterisation in the presence of stellar activity." Thesis, University of Exeter, 2010. http://hdl.handle.net/10036/104834.

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The combined observations of a planet’s transits and the radial velocity variations of its host star allow the determination of the planet’s orbital parameters, and most inter- estingly of its radius and mass, and hence its mean density. Observed densities provide important constraints to planet structure and evolution models. The uncertainties on the parameters of large exoplanets mainly arise from those on stellar masses and radii. For small exoplanets, the treatment of stellar variability limits the accuracy on the de- rived parameters. The goal of this PhD thesis was to reduce these source

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Costa, Ana Sofia Vicente. "Seasonal variations in the effect of structural complexity of olive productions systems on bat activity: implications for natural pest control services." Master's thesis, Universidade de Évora, 2018. http://hdl.handle.net/10174/24445.

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Agricultural landscapes have suffered drastic changes as a consequence of management intensification, leading to a decline in biodiversity, specially in Mediterranean olive farms. Among others, homogenization affects the activity levels of bats, an important component of agricultural ecosystems by acting as biocontrol agents against olive pests. To understand how seasonal variations affects bat occurrence and the biocontrol services they provide, we sampled olive groves with different structural complexities over three seasons, coinciding with the peak activity of Prays oleae, one of the major

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Beraud, Hélène. "Initier la résilience du service de gestion des déchets aux catastrophes naturelles : le cas des territoires urbains et de l'inondation." Thesis, Paris Est, 2013. http://www.theses.fr/2013PEST1046/document.

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Les stratégies d'amélioration de la résilience des territoires à risque ont pris une place prépondérante dans les politiques de gestion des inondations. Raisonner en terme de résilience, c'est-à-dire de capacité pour un système à se maintenir et à retrouver un fonctionnement acceptable après la catastrophe, permet de penser différemment et d'anticiper la longue période qui suit un événement catastrophique. Le rôle du service de gestion des déchets dans la résilience des territoires urbains a été peu étudié. Or, lors d'une inondation, l'eau dégrade tout ce qu'elle touche, générant par là même d

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Kong, Heng. "Variations spatio-temporelles de la structure taxonomique et la compétition alimentaire des poissons du lac Tonlé Sap, Cambodge." Thesis, Toulouse 3, 2018. http://www.theses.fr/2018TOU30122/document.

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Le lac de Tonlé Sap (TSL), Cambodge, est un écosystème lac-rivière de forêt alluviale au régime d'écoulement alternatif. Le lac est un déversoir lors de l'inondation saisonnière du Mékong et sert de réservoir en période de basses eaux. La superficie du lac pendant la saison sèche (février à mai), est d'environ 2 700 km2 pour une profondeur d'environ 1 mètre. Cette superficie est pratiquement multipliée par six quand arrive la saison des pluies, pour atteindre près de 16 000 km2 et une profondeur de 9 mètres, noyant rizières et forêts. C'est le plus grand lac d'eau douce d'Asie du Sud-Est. C'es

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Santoso, Sugeng. "EXPERIMENTAL STUDIES ON THE DENSITY-DEPENDENT VARIATIONS IN BODY COLOR AND DISPERSAL ACTIVITY OF THE THREE RICE LEAFHOPPERS, NEPHOTETTIX CINCTICEPS, N.NIGROPICTUS AND N.VIRESCENS (HOMOPTERA : CICADELLIDAE)." Kyoto University, 1999. http://hdl.handle.net/2433/181396.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(農学)<br>甲第8033号<br>農博第1083号<br>新制||農||790(附属図書館)<br>学位論文||H11||N3328(農学部図書室)<br>UT51-99-T744<br>京都大学大学院農学研究科応用生物科学専攻<br>(主査)教授久野英二, 教授西岡孝明, 教授高藤晃雄<br>学位規則第4条第1項該当

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Ulaganathan, Sekar. "The influence of light exposure and seasonal changes on short-term and longer-term changes in axial length of the human eye." Thesis, Queensland University of Technology, 2018. https://eprints.qut.edu.au/115840/1/Sekar_Ulaganathan_Thesis.pdf.

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Myopia (short-sightedness) is a common eye condition that is increasing in prevalence in the population. This research involved a longitudinal study examining the potential role of outdoor light exposure (and its seasonal variations) in the increased eye growth underlying myopia in young adults. Individuals spending less time in bright outdoor light were found to exhibit higher magnitude short-term daily fluctuations in eye length, as well as more rapid eye growth over 12-months. Seasonal variations in light exposure also appeared to impact upon eye growth. This research supports an important

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Mendella, Paul David Carleton University Dissertation Psychology. "Intraventricular administration of [D-Pen2,D-Pen5]-Enkephalin in the CD-1 mouse; variations of activity, exploration and intracranial self-stimulation from the Dorsal A10 region following uncontrollable footshock." Ottawa, 1994.

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Courtiol, Emmanuelle. "L’inextricable relation olfaction-respiration chez le rat : études de l’impact des variations de flairages sur l’activité du bulbe olfactif et sur la discrimination des odeurs." Thesis, Lyon 1, 2012. http://www.theses.fr/2012LYO10309/document.

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Chez les mamifères terrestres, l’échantillonnage des odeurs (flairage) est inextricablement lié à la respiration. Le flairage contraint à la fois le décours temporel et l’intensité de l’input olfactif. Or le flaireage est un acte dynamique, il peut varier aussi bien en fréquence qu’en débit. Dans une 1ère partie de mon travail de thèse, nous avoins souhaité caractériser l’impact des variations de fréquence et de débit respiratiore sur l’activité du bulbe olfactif. Pour cela, nous avons mis au point une méthode de double trachéotomie chez le rat anesthésié nous permettant de contrôler préciséme

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Stahl, Clément. "Variations saisonnières des flux de CO2 et H2O au niveau des feuilles et des troncs des arbres de la canopée en forêt tropicale humide guyanaise." Thesis, Nancy 1, 2010. http://www.theses.fr/2010NAN10049/document.

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L’objectif de ce travail était de caractériser la variabilité saisonnière des échanges gazeux des arbres de la canopée en forêt tropicale humide guyanaise confrontés à des saisons sèches.L’étude s’est orientée sur la mesure des flux de carbone et d’eau au cours des saisons sèches dans deux habitats contrastés du point de vue hydrique, afin de préciser leur sensibilité et réponse à la sècheresse. Nos résultats montrent qu’une proportion non négligeable d’arbres ne subit pas de sécheresse marquée en saison sèche, malgré la forte diminution de la teneur en eau du sol en surface. Nous faisons l’hy

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Bovalo, Christophe. "Activité électrique et variations d’intensité des systèmes convectifs tropicaux dans le sud-ouest de l’océan Indien : observations et modélisation." Thesis, La Réunion, 2013. http://www.theses.fr/2013LARE0001/document.

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Depuis une vingtaine d'années, la qualité de la prévision de la trajectoire des cyclones tropicaux a fortement progressé mais peu d'améliorations ont été apportées à la prévision de l'intensité. Cette thèse s'intéresse aux changements d'intensité des cyclones tropicaux du sud-ouest de l'océan Indien sous l'angle original de l'activité électrique.Une première étude climatologique s'appuyant sur les données du réseau de détection d'éclairs World Wide Lightning Location Network (WWLLN) a permis de valider la qualité de ces données et de montrer que les cyclones tropicaux pouvaient être une source

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Vigne, Grégory. "Détermination et variation du profil physique du footballeur de très haut niveau : référence spéciale aux performances athlétiques selon les différents postes de jeu orientant sur la validation d’un test d’agilité." Thesis, Lyon 1, 2011. http://www.theses.fr/2011LYO10343/document.

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Cette thèse s’adresse aussi bien aux scientifiques, aux entraîneurs, aux préparateurs physiques et aux sportifs souhaitant approfondir leurs connaissances de l’activité football. Les aspects scientifiques abordés ainsi que leur transposition en outils de terrain pourront être utilisés comme moyen d’évaluation et d’orientation des séances d’entraînement. Ainsi, au travers de ce travail, nous avons abordé le ratio entre le temps de travail et le temps de récupération réalisés en matches de très haut niveau dans le Championnat de Première Division Italienne au cours de la saison 2004/2005. Ce rat

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Benslimane, Saloua. "Variations de l'activité de la plasmine et du plasminogène dans les laits de vache Montbéliarde et dans les fromages de type Comté." Besançon, 1986. http://www.theses.fr/1986BESA2001.

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La plasmine, protéase native endogène, existe dans le lait de vache avec son zymogène inactif : le plasminogène. Dans les laits de vaches montbéliarde, l'activité de la plasmine et du plasminogène varie essentiellement en fonction des saisons et des stades de lactation : cette activité est minimale a l'automne et maximale en été ; elle est faible en début de lactation et élevée en fin de lactation. Dans les fromages de type comte, l'activité diminue progressivement au cours de la fabrication en été et en hiver. La protéolyse induite par la plasmine dans les laits est plus importante l'été que

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Michelot, Candice. "Le manchot Adélie, sentinelle de la glace de mer : étude du comportement de recherche alimentaire en réponse aux variations environnementales en période de reproduction." Thesis, La Rochelle, 2020. http://www.theses.fr/2020LAROS009.

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Une question centrale en écologie est la compréhension des effets des changements environnementaux sur les organismes et sur le fonctionnement des écosystèmes. L’Arctique et l’Antarctique se réchauffent plus rapidement que n’importe quelle autre région sur la planète, ce qui a des conséquences sur l’état de la glace de mer et par extension sur les espèces polaires qui en dépendent pour leur activité d’alimentation et de reproduction. L’objectif principal de cette thèse est de déterminer les réponses comportementales d’une espèce bio-indicatrice, le manchot Adélie, lors de son activité de reche

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Alzubik, Belkair Sadeq. "Lutte biologique par conversation dans les vergers de pommiers : peut-on manipuler les communautés d'araignées pour augmenter leur efficacité contre certains ravageurs." Thesis, Avignon, 2018. http://www.theses.fr/2018AVIG0348/document.

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Dans le contexte des plans Ecophyto, il est primordial de trouver des alternatives aux traitements phytosanitaires. La lutte biologique par conservation fait partie de ces alternatives et, dans ce cadre, nous nous sommes intéressés à déterminer les rôles possibles des araignées en tant que prédateurs généralistes dans les vergers de pommiers. Pour cela, trois axes de travail ont été définis : (i) d’abord étudier les facteurs locaux (protection phytosanitaire et environnement des vergers) expliquant l’abondance et la diversité des communautés d’araignées; (ii) ensuite déterminer si les araignée

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Heroudek, Jiří. "Řízení nákladů v podniku." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2011. http://www.nusl.cz/ntk/nusl-222907.

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This Master‘s thesis is focused on cost analyses and cost management in FEI Company. Theoretical part describes basic and advanced cost model and their usage for efficient cost management. Practical part deals with analyses of calculation method for standard costing and life cycle costing. As a part of these analyses, some recommendations are provided to make cost calculations more accurate.

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Erdelyi, Maria Carolina. "Contribuição à farmacognosia de Annona squamosa L. (Annonaceae) - Acompanhamento da variação sazonal de constituintes, aspectos botânicos e avaliação da atividade antileishmania in vitro." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/9/9138/tde-14092017-114936/.

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As doenças tropicais endêmicas representam um grave problema sócio-econômico, no Brasil e no mundo. A leishmaniose insere-se neste quadro. Considerando o surgimento da resistência dos parasitas e a séria toxicidade da terapêutica convencional, a busca de novas alternativas é urgente. A família Annonaceae tem mostrado ser rica fonte de compostos com atividade antiprotozoária. Neste contexto, Annona squamosa L. foi selecionada. Sendo mais conhecida como \"fruta-do-conde\", apresenta uso na medicinal popular, como: antihelmíntica e no combate aos ectoparasitas. Entre os principais metabólitos sec

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Thomas, Aline. "Identités funéraires, variants biologiques et facteurs chronologiques : une nouvelle perception du contexte culturel et social du Cerny (Bassin parisien, 4700-4300 avant J.-C.)." Thesis, Bordeaux 1, 2011. http://www.theses.fr/2011BOR14401/document.

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Au cours du Ve millénaire avant notre ère, le Bassin parisien voit l’émergence des premières nécropoles et du monumentalisme funéraire. Associé à la culture de Cerny, ces vestiges offrent un observatoire privilégié des mutations sociales que connaissent les communautés du Néolithique moyen en France. À partir d’une approche archéo-anthropologique, nous livrons ici un bilan complet de la population Cerny, au niveau général, à l’échelle des trois types de site (à structure de type Passy, plats et à sépulture sous dalle), et au niveau de chaque nécropole. Les sites de Passy, Balloy, Gron, Escoliv

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Ho, Wan-chien, and 何萬謙. "Variations of ionospheric neutral densities in response to solar activity." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/71310393180035983666.

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碩士<br>國立中央大學<br>太空科學研究所<br>102<br>This thesis focuses on the studies of variations of neutral densities at a height of 410 Km in response to solar activity. It use solar radiation indices F10.7 and EUV to linearly fit neutral density measured by the Challenging Minisatellite Payload (CHAMP) satelliteduring the period 2003 - 2008. Aclearly phase delay in solar radiation and neutral density have been found when we were doing data analysis. It's also pointed out that neutral density variation has a time delay with solar radiation in the previous papers. In this study, we could get a conclusi

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Liu, Shao-Hua, and 劉少華. "A system dynamics study for city developmet and activity of controlling Hsichin flood." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/29353246528056923535.

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碩士<br>國立中山大學<br>公共事務管理研究所<br>91<br>From the beginning of 1980s, Hsichin has become a dreaming heaven of emigrants who move to the urban area of Taipei because the fever of housing market and the policy of government. As the high density development of slope land, the runoff capacity will be increased. On the other hand, river land will be decreased by city growth. Impacting by the above two reason, Hsichin is called as the flown city by the mass media. The goal of this research is discussing the reaction between the city development of Hsichin, the flood event, and the flood prevention activit

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Davidson, Daniel. "A Rock Physics Based Investigation of Pore Structure Variations Associated with a CO2 Flood in a Clastic Reservoir, Delhi, LA." Thesis, 2013. http://hdl.handle.net/1969.1/151283.

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The permeability in siliclastic rocks can vary due to different pore geometries. The pore properties of a formation can also have significant effects on reflection coefficient. The pore structure of clastic rock may be predicted from a wave reflection using mathematical models. Biot-Gassmann and Sun’s equations are examples of two models which were used in this research to quantify the pore property. The purpose of this thesis is to measure variations in porosity and permeability using 3-D time lapsed seismic during a CO_(2) flood. CO_(2) sequestration EOR will most likely cause permanent di

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Wu, Bo-Shen, and 於柏伸. "Antioxidative activity in extracts of oyster and the variations in season and cultured area." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/83643803039612858507.

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碩士<br>國立臺灣海洋大學<br>食品科學系<br>93<br>This study investigates the antioxidative activity in oyster (Crassostrea gigas) meat in relation to the effects of extraction condition, enzymatic treatment, fractionation, and variation in season and cultured area. The specimens were cooked in boiling water, homogenized, and freeze-dired in vacuum to obtain a lyophilized meat powder as the sample for experiments. The extraction conditions including hot water (HW), HW-ether, HW-80% ethanol, 80% ethanol, and 80% ethanol-ether were used to prepare extracts from the meat sample. The extracts were then compared fo

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Shepherd, Simon J., S. I. Zharkov, and Valentina V. Zharkova. "Prediction of Solar Activity from Solar Background Magnetic Field Variations in Cycles 21-23." Thesis, 2014. http://hdl.handle.net/10454/10790.

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yes<br>A comprehensive spectral analysis of both the solar background magnetic field (SBMF) in cycles 21-23 and the sunspot magnetic field in cycle 23 reported in our recent paper showed the presence of two principal components (PCs) of SBMF having opposite polarity, e. g., originating in the northern and southern hemispheres, respectively. Over a duration of one solar cycle, both waves are found to travel with an increasing phase shift toward the northern hemisphere in odd cycles 21 and 23 and to the southern hemisphere in even cycle 22. These waves were linked to solar dynamo waves assumed t

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Martin, Barton Sawyer. "Geochemical variations within the Roza Member, Wanapum Basalt, Columbia River Basalt Group: Implications for the magmatic processes affecting continental flood basalts." 1991. https://scholarworks.umass.edu/dissertations/AAI9120914.

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Plagioclase phyric lavas of the Roza Member cover approximately 40,000 km$\sp2$ in Oregon and Washington. Field relationships in 85 stratigraphic sections and geochemical analysis of 765 samples indicate that the Roza Member consists of 1 to 4 flow units. Systematic variations in Cr, Nb, Zr, P$\sb2$O$\sb5$, and TiO$\sb2$ allow these flow units to be divided into 6 chemically distinct subtypes. Incompatible element abundances decrease while the Cr concentration and plagioclase phenocryst population increase upward through the Roza succession. Most other elements display only minor variations. S

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Liou, I.-Ching, and 劉怡青. "Antioxidative activity in extracts of hard clam and the variations in season and cultured area." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/91584792922590349418.

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碩士<br>國立臺灣海洋大學<br>食品科學系<br>92<br>Abstract This study investigates the antioxidative activity in extracts of hard clam in relation to enzymatic treatment, fractionation, season, and cultured area. The hard clam specimens were cooked, homogenized, and freeze-dried in vacuum to become lyophilized meat powder as sample for the experiments. To meat sample, different enzymes including digestive enzymes ( pepsin, trypsin, α-amylase and α-glucosidase) and proteases form commercial sources (Protease A, Protease N, Prozyme 6, papain, Flavourzyme, Alcalase and Protamex) were added and kept at 37℃ or 50

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Lin, Guo-Tai, and 林國泰. "Antioxidative activity in extracts of freshwater clam and the variations in season and cultured area." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/56899647219979181315.

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Penm, Jammie H. "An econometric time-series analysis of Australian housing activity from a macroeconomic perspective." Phd thesis, 1993. http://hdl.handle.net/1885/131967.

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The significant fluctuations in housing activity over time can be regarded as "interesting" and "special". The persistence of such cyclical behaviour of housing activity through periods of different economic and demographic conditions has attracted significant research efforts to investigate the underlying influences and the implications for the economy as a whole. In this thesis, the factors which contribute to cyclical fluctuations in housing activity are examined using econometric time-series techniques. While the commonly used indicators of housing activity are stationary over the s

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Sehlakgwe, Phophi Freda. "Developing propagation methodology and determining seasonal variation and antibacterial activity for a cosmeceutical species, Leucosidea sericea." Diss., 2018. http://hdl.handle.net/10500/23598.

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The aim of this study was to determine propagation methodology of L. sericea taking into consideration the effect of season and storage. The response of tip and basal cuttings of L. sericea to three hormonal treatments and three growth media was investigated. Seed germination response to five constant temperatures and four pre-sowing treatments was also investigated. Using NMR spectroscopy, the effects of season and storage on metabolites in leaves of L. sericea were investigated. All treatments did not initiate or improve rooting of L sericea cuttings. Seed germination percentage was signific

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