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Tesis sobre el tema "Grapes – Physiology"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 29 de enero de 2023

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1

Stoll, Manfred. "Effects of partial rootzone drying on grapevine physiology and fruit quality." Title page, contents and summary only, 2000. http://hdl.handle.net/2440/37734.

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Growth, productivity and fruit quality of grapevines are closely linked to soil water availability. Withholding of water for any length of time results in slowed growth. If drought continues yield may be lost. Vines can be manipulated to stimulate early defence mechanisms by decreasing soil water availability. By using an irrigation technique, which allows for separate zones with different soil moisture status, it is possible to stimulate response mechanisms of the root system which are normally related to water stress. The difficulty of separating 'wet' and 'dry' zones was initially overcome

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2

Campbell, James Alexander, and mikewood@deakin edu au. "Physiology and biochemistry of budburst in Vitis vinifera." Deakin University, 1993. http://tux.lib.deakin.edu.au./adt-VDU/public/adt-VDU20060808.123121.

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Both the physiological and biochemical control of budburst in the grapevine, Vitis Vinifera L. were investigated. It was found that the accuracy of a predictive model for grapevine budburst based on ambient temperature was limited under the experimental conditions. There was a significant correlation of 4.7 ± 0.3 days between the days of maximal xylem exudation and budburst over the 3 years of investigation. The co-relationships between daily xylem exudate volume and a range of environmental parameters were considered. It was found that soil temperature was highly correlated against

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3

Cloete, Hanle. "The effect of shoot heterogeneity on the physiology and grape composition of Shiraz/Richter 99 grapevines." Thesis, Stellenbosch : Stellenbosch University, 2004. http://hdl.handle.net/10019.1/50145.

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Thesis (MScAgric)--Stellenbosch University, 2004.<br>ENGLISH ABSTRACT: The effect of shoot heterogeneity on vegetative and reproductive growth parameters, vine physiology and grape composition was investigated in a ShirazlRichter 99 vineyard. Comparisons between underdeveloped (typically shorter and less ripened at véraison) and normally developed shoots in both shaded (non-manipulated) and well-exposed (manipulated) canopies were made. Compared to underdeveloped shoots, normal shoots had a larger total leaf area, due to the higher occurrence of secondary shoots as well as larger leaves

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4

Burger, D. A. (Dirk Albert). "Postharvest berry split and abscission in 'Thompson Seedless' and 'Waltham Cross' table grapes." Thesis, Stellenbosch : Stellenbosch University, 2000. http://hdl.handle.net/10019.1/51877.

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Thesis (MScAgric) -- University of Stellenbosch, 2000.<br>ENGLISH ABSTRACT: Postharvest berry split and abscission are prevailing physiological disorders that negatively impact on the quality of table grapes exported from South Africa. Inferior grape quality due to these disorders results in a considerable decline in consumer confidence in the branded product, which leads to a drop in demand, and consequently, lower prices. Since information concerning postharvest factors influencing postharvest berry split and abscission is limited, the search for reliable methods to adequately control

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5

Dry, P. R. "Response of grapevines to partial drying of the root system." Title page, contents and summary only, 1997. http://web4.library.adelaide.edu.au/theses/09PH/09phd7984.pdf.

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Bibliography: p. 261-273. The general hypothesis tested in this study was that: 'partial drying of the root system of grapevines will result in reduced vegetative growth with beneficial effects for fruit yield, fruit composition and water-use efficiency'. Previously published work has suggested that partial drying of the root system may give rise to non-dydraulic root-derived signals capable of changing leaf development and transpiration.

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6

Boucher, T. Jude. "Japanese beetle Popillia japonica Newman: foliar feeding on wine grapes in Virginia." Thesis, Virginia Polytechnic Institute and State University, 1986. http://hdl.handle.net/10919/71342.

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The natural infestation level for 1985 of the Japanese beetle, Popillia japonica Newman, in the Shenandoah Valley of Virginia failed to reduce berry quality, yield or shoot growth in a commercial vineyard. Intensive postveraison foliage feeding by Japanese beetle resulted 1n fruit with lower soluble solids and higher total titratable acidity at harvest, but did not affect pH, sugar per berry, berry weight, yield, leaves per vine or shoot length. Intensive previraison feeding also resulted in fruit with higher total titratable acidity. All other parameters were unaffected. I

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7

Raath, P. J. (. Pieter Johannes). "Effect of varying levels of nitrogen, potassium and calcium nutrition on table grape vine physiology and berry quality." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/19996.

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Thesis (PhD(Agric))--Stellenbosch University, 2012.<br>ENGLISH ABSTRACT: A lack of defects is required for successful table grape marketing, which pre-suppose optimal vine performance, berry development and post-harvest quality. The supply of mineral nutrients affects vine development, physiology and berry quality. Despite a vast amount of research conducted over decades, there remain many unresolved issues regarding table grape vine nutrition to ensure optimal table grape quality and shelve-life. Unjustified fertilisation practices often include excessive applications of nitrogen (N),

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8

Clarke, Kristine Marie. "Effects of graded and steady exercise and self-confidence on stress." PDXScholar, 1988. https://pdxscholar.library.pdx.edu/open_access_etds/3758.

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This study examined the effects of steady, graded, and no exercise on stress reduction, and the effects of self-confidence on stress reduction through exercise. Seventy-two male and female volunteers from the Portland area, ranging in age from 19-49 years, served as subjects. Subjects completed pre and post measures of the Tennessee Self-Concept Scale and the state portion of the Spielberger State-Trait Anxiety Inventory. Subjects were divided into two experimental and one control group matched according to age and exercise history. The control group kept its exercise at a minimum for eight we

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9

Sutherland, M. J. "The influence of vine vigour and canopy ideotype on fruit composition and aroma of Sauvignon Blanc." Diss., Lincoln University, 2009. http://hdl.handle.net/10182/1270.

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The influence of soil texture on canopy growth, vine yield, and fruit composition of Sauvignon blanc were assessed on a mature vineyard from the Rapaura area in Marlborough. The subject vines were mature Sauvignon blanc in a commercial vineyard trained to four cane VSP and planted with a north south orientation. Row and vine spacings were typical of the area at 3m x 1.8m. Four areas of different soil texture were identified using trunk circumference measurements, visual assessment of the surface soil and aerial photographs to identify changes in vine growth. Soil pits were excavated at a later

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10

Engelbrecht, Lize. "Grape seed extract affects adhesion competence and maturation of primary isolated rat myoblasts after contusion injury." Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/80380.

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Thesis (MSc)--Stellenbosch University, 2013.<br>ENGLISH ABSTRACT: Contusion injuries cause significant muscle damage, activating a series of cellular events. Satellite cells (SC), the key role players in muscle regeneration, are activated to proliferate and develop into mature myoblasts, which could fuse to form new myotubes or to repair damaged fibres. Evidence suggests that anti-oxidants, such as those found in grape seed extract (GSE), enhance repair, but their effect on SCs is still unclear. This study aimed to harvest and culture primary rat myoblasts to investigate the effect of chronic

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11

Ayache, Mohammad. "Application des réseaux de neurones à la classification automatisée des grades placentaires." Tours, 2007. http://www.theses.fr/2007TOUR3315.

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Le placenta est un organe provisoire joignant la mère et le fœtus qui transfère l’oxygène et des nutriments de la mère au fœtus et permet l’évacuation de l’anhydride carbonique et des produits du métabolisme du fœtus. Le but de notre travail était d’étudier la fonction de transfert des tissus placentaires selon son développement en se basant sur les images ultrasonores. Nous avons développé au cours de ce travail une nouvelle approche de la classification du développement placentaire en ultrasons par des techniques de traitement d’images avancées basée sur une représentation par réseau neurona

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12

Huang, Henry Yen-Chin Graduate School of Biomedical Engineering Faculty of Engineering UNSW. "Theoretical and experimental modelling of stress within the neck of endoluminal grafted artery." Awarded by:University of New South Wales. Graduate School of Biomedical Engineering, 2006. http://handle.unsw.edu.au/1959.4/29146.

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The success of endoluminal stent-graft treatment for abdominal aortic aneurysm relies on maintenance of an effective seal when the stent expands into the healthy artery. Clinical observation of aortic neck dilation following endoluminal grafting has led to the hypothesis that excessive stent expansion forces may cause remodelling and dilation of the artery to accommodate the strong forces. This may lead to failure of the seal, hence so-called endoleak. In this research, we analysed the force field generated by aortic stent-grafts and investigated in vitro approaches for studying the effects

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13

Grant, Trudi NL. "Characterization of Cold and Short Day Acclimation in Grape Genotypes of Contrasting Freezing Tolerance." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1331044835.

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14

Fulcher, Kathy. "Physiological and psychological responses of patients with chronic fatigue syndrome to regular physical activity." Thesis, Loughborough University, 1997. https://dspace.lboro.ac.uk/2134/6777.

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15

Salameh, Ahlam. "Graded Exercise Stress Testing: Treadmill Protocols Comparison Of Peak Exercise Times In Cardiac Patients." Akron, OH : University of Akron, 2009. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=akron1249833172.

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Thesis (M.S.)--University of Akron, Dept. of Sport Science and Wellness Education-Physical Education, 2009.<br>"August, 2009." Title from electronic thesis title page (viewed 10/7/2009) Advisor, Ronald Otterstetter; Committee members, James Rosneck, Laura Richardson; Department Chair, Victor Pinheiro; Dean of the College, Mark D. Shermis; Dean of the Graduate School, George R. Newkome. Includes bibliographical references.

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16

Africa, Luan Dane. "HIV-1 associated neuroinflammation : effects of two complimentary medicines illustrated in an in vitro model of the blood-brain barrier." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/95869.

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Thesis (MSc)--Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: Background: Neuroinflammation is central to the aetiology of HIV-associated neurocognitive disorders (HAND) that are prevalent in late stage AIDS. ARV treatments are rolled out relatively late in the context of neuroinflammatory changes, so that their usefulness in directly preventing HAND is probably limited. It is common practice for HIV+ individuals in developing countries to make use of traditional/complimentary medicines. One such medicine is Sutherlandia frutescens - commonly consumed as a water infusion. We have also iden

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17

Haro, Filomena Maria Buosi de. "Desenvolvimento da acuidade visual de resolução de grades em prematuros durante o primeiro ano de vida : estudo eletrofisiológico pelo registro dos potenciais visuais evocados de varredura." Universidade de São Paulo, 2003. http://www.teses.usp.br/teses/disponiveis/5/5141/tde-08092014-142658/.

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Objetivos: determinar a acuidade visual de resolução de grades (AV) durante o primeiro ano de vida por meio dos registros dos potenciais visuais evocados de varredura em grupos de crianças nascidas prematuramente (RNPT) e a termo (RNT); comparar os valores finais da AV no grupo RNPT em relação à idade gestacional e ao desenvolvimento neuropsicomotor e comparar as curvas de desenvolvimento visual entre os grupos RNPT e RNT. Casuística e métodos: Estudo realizado em 25 RNT e 36 RNPT acompanhados em ambulatório e submetidos a avaliações oftalmológica e neuropediátrica. O grupo RNPT foi dividido e

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18

Ziegler, Thierry. "Co-culture of endothelial cells with smooth muscle cells in a matrix of collagen : Effect of a steady, laminar stress on the cell behavior." Diss., Georgia Institute of Technology, 1994. http://hdl.handle.net/1853/17618.

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19

Shafer-Millsap, V. C. "A comparative analysis of the heart rate-oxygen consumption relationship observed during Bruce protocol graded exercise stress tests and steady-state exercise." Thesis, Virginia Polytechnic Institute and State University, 1986. http://hdl.handle.net/10919/90958.

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Twenty-eight endurance trained male volunteers, 18-41 years or age, were studied to determine whether the heart rate-oxygen consumption relationships observed during Bruce protocol stress tests were similar to those observed during steady-state exercise. In addition, maximal oxygen consumption and maximal heart rate values obtained during the stress tests were compared to predicted values. The heart rate-oxygen consumption relationship observed during the stress tests was dissimilar from the relationship observed during the steady-state exercise tests. Heart rate was round to be significantl

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20

Petrosino, Jennifer M. "Maximizing the max test: Development of a maximal graded exercise test for the assessment of cardiovascular function in mice." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1428595054.

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21

Turenne, Eric D. "Lipid Mobilization In Exercising Salmonids." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/37075.

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Animals rely on lipids as a major fuel for endurance exercise because they pack more joules per gram than any other fuel. However, in contrast to mammals, information on how the mobilization of lipids from endogenous stores is managed to meet the needs of energy metabolism in swimming fish is sparse. Information on in vivo rates of lipid mobilization in swimming fish has been limited to relatively low exercise intensities and has only been investigated in a single species. Therefore, the goal of my thesis was to address this paucity of information by quantifying lipolytic rate in rainbow trout

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22

Carroll, Kevin M., Kimitake Sato, Caleb D. Bazyler, N. Travis Triplett, and Michael H. Stone. "Increases in Variation of Barbell Kinematics Are Observed with Increasing Intensity in a Graded Back Squat Test." Digital Commons @ East Tennessee State University, 2017. https://dc.etsu.edu/etsu-works/3779.

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The purpose of the current study was two-fold: (1) To examine the variation in velocity and power with increasing intensity in the back squat among subjects; and (2) To explore individual subject characteristics as possible explanations for variations of velocity in the back squat. Fourteen recreationally trained male subjects with experience in the back squat agreed to participate in the study (age = 25.0 ± 2.6 years, height = 178.9 ± 8.1 cm, body mass = 88.2 ± 15.8 kg). One-repetition maximums (1RM) were performed for each subject on force platforms with four linear position transducers atta

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23

Bureau, Sylvie. "Modifications de l'environnement lumineux sur des grappes et des ceps de vigne : effets sur le potentiel aromatique des baies de Syrah et de Muscat de Frontignan." Montpellier 2, 1998. http://www.theses.fr/1998MON20021.

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Les environnements lumineux des grappes seules ou des ceps de vigne entiers ont ete modifies sur syrah et muscat de frontignan, entre la nouaison et la maturite, pendant deux annees. Les teneurs en carotenoides des baies a veraison et a maturite ont ete determinees par chromatographie liquide a haute performance et les teneurs en composes libres et lies de l'arome, des baies a maturite et des vins, par chromatographie en phase gazeuse. La modification quantitative de l'environnement lumineux des grappes, artificiellement sous des caches interceptant 90% de l'energie solaire et naturellement pa

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24

D'Hooghe, Philippe. "Impacts de la disponibilité en sulfate sur la physiologie de la feuille et sur la qualité, le métabolisme soufré et la germination de la graine de colza." Phd thesis, Université de Caen, 2013. http://tel.archives-ouvertes.fr/tel-00937062.

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Le colza est une oléagineuse très exigeante en soufre (S). L'étude des impacts de limitations en S sur la physiologie du colza et sa qualité grainière revêt un intérêt majeur dans un contexte de baisse des dépôts atmosphériques entrainant un appauvrissement des sols en S. Les objectifs étaient donc d'étudier l'incidence d'une limitation en S sur la physiologie de jeunes feuilles, et sur la qualité, le métabolisme soufré et la vigueur germinative des graines. L'analyse physiologique (photosynthèse, flux de S par utilisation de traceur <sup>34</sup>S-sulfate), protéomique et biochimique (métabol

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25

Cottrell, Marie. "Modélisation de réseaux de neurones par des chaines de Markov et autres applications." Paris 11, 1988. http://www.theses.fr/1988PA112232.

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La première partie de la thèse consiste en un article publié (IEEE Trans. Aut. Control Vol. AC 28, n° 9, 1983), avec J. C. Fort et G. Malgouyres, qui propose deux méthodes d'évaluation du temps de sortie d'un bassin d'attraction pour une chaine de Markov ce temps étant extrêmement grand, on utilise pour cela un changement de probabilité exponentiel tant pour une méthode de simulation rapide que pour une approximation diffusion non standard. La deuxième partie comprend deux articles publiés avec J. C. Fort (Annales de l'IHP Probabilités et Statistiques vol. 23, n°1, 1987) et Biological Cybernet

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26

Engberg, Amanda. "The effect of load carriage on aerobic capacity and ventilatory threshold in Swedish soldiers." Thesis, Högskolan i Halmstad, Akademin för ekonomi, teknik och naturvetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-37125.

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Background: Working within the military as a ground combat solider is very physically demanding. Soldiers are required to handle situations ranging from peacekeeping to counterinsurgency and combat, while faced with the task of load carriage either in form of the military gear or other additional loads. Therefore, a good aerobic and anaerobic fitness is necessary. The aerobic and anaerobic fitness can be assessed with a wide range is methods such as measuring the peak oxygen uptake (VO2peak), ventilator threshold, blood lactate concentration and heart rate. However research is rather spares re

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27

Poisson, Emilie. "Optimisation de la fertilisation soufrée pour améliorer le rendement et la qualité grainière du colza : impacts des interactions Soufre/Azote et du changement climatique, identifications d'idéotypes." Thesis, Normandie, 2018. http://www.theses.fr/2018NORMC264/document.

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Le colza est une oléoprotéagineuse exigeante en soufre (S) mais caractérisée par une faible efficience d’usage du S (EUS). La baisse des retombés atmosphériques soufrées, l'existence de fortes interactions entre les métabolismes soufrés et azotés et l’augmentation prédite des températures terrestres peuvent conduire à une altération des rendements et de la qualité des graines de colza. Dans ce contexte, en s’appuyant sur des approches in planta (conditions contrôlées et de plein champ) et in silico (expérimentations numériques via le modèle écophysiologique SuMoToRI "Sulphur Model Towards Rape

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28

Cabana, Tanguy. "Large deviations for the dynamics of heterogeneous neural networks." Thesis, Paris 6, 2016. http://www.theses.fr/2016PA066551/document.

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Cette thèse porte sur l'obtention rigoureuse de limites de champ moyen pour la dynamique continue de grands réseaux de neurones hétérogènes. Nous considérons des neurones à taux de décharge, et sujets à un bruit Brownien additif. Le réseau est entièrement connecté, avec des poids de connections dont la variance décroît comme l'inverse du nombre de neurones conservant un effet non trivial dans la limite thermodynamique. Un second type d'hétérogénéité, interprété comme une position spatiale, est considéré au niveau de chaque cellule. Pour la pertinence biologique, nos modèles incluent ou bien de

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29

Messé, Arnaud. "Caractérisation de la relation structure-fonction dans le cerveau humain à partir de données d'IRM fonctionnelle et de diffusion : méthodes et applications cognitive et clinique." Phd thesis, Université de Nice Sophia-Antipolis, 2010. http://tel.archives-ouvertes.fr/tel-00845014.

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La compréhension des mécanismes cognitifs est un défi que les prouesses technologiques en imagerie par résonance magnétique fonctionnelle et de diffusion permettent de relever. Les réseaux neuronaux, ensembles de régions interconnectées anatomiquement et fonctionnellement, sont à l'ori- gine des processus cognitifs. Nous nous sommes intéressés à la relation entre la structure anatomique et la fonction de ces réseaux, au travers des deux principes fondamentaux du fonctionnement céré- bral que sont la ségrégation et l'intégration, ainsi que via la notion d'intégrité. En premier lieu, nous nous s

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30

Faivre, Anthony. "Etude de la réorganisation de la connectivité cérébrale au repos dans la sclérose en plaques." Thesis, Aix-Marseille, 2014. http://www.theses.fr/2014AIXM5022/document.

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L'IRMf de repos qui repose sur l'étude des fluctuations du signal BOLD chez un sujet au repos, pourrait permettre d'explorer les mécanismes du handicap dans la Sclérose En Plaques (SEP). En utilisant l'IRMf de repos, ce travail a eu pour objectif de caractériser la réorganisation fonctionnelle des patients atteints de SEP et ses liens avec leur handicap.Nous avons d'abord réalisé une étude combinant IRMf de repos et d'activation au stade précoce de la SEP et montré l'existence d'une corrélation entre la plasticité fonctionnelle du système moteur des patients au repos et durant la tâche. Nous a

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31

Rocha, Eduardo Augusto Victor. "Avaliação da apoptose e neoangiogênese miocárdica no treinamento ventricular de cabritos jovens submetidos à sobrecarga de pressão contínua versus intermitente." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/5/5156/tde-06022017-155911/.

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Introdução: A correção anatômica da transposição das grandes artérias após o período neonatal demanda a preparação prévia do ventrículo subpulmonar, com bandagem do tronco pulmonar, para induzir a hipertrofia ventricular. Estudos experimentais prévios demonstraram que a sobrecarga sistólica intermitente determina uma hipertrofia ventricular mais eficiente, em relação à bandagem convencional (fixa) do tronco pulmonar. Os mecanismos adaptativos envolvidos no retreinamento do ventrículo subpulmonar ainda não estão completamente estabelecidos, pois se sabe que, além da hipertrofia e hiperplasia da

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32

Creasy, Glen L. "Inflorescence necrosis, ammonium, and evidence for ferredoxin-glutamate synthase activity in grape (Vitis vinifera L.)." Thesis, 1996. http://hdl.handle.net/1957/25580.

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Death of flower parts near bloom due to inflorescence necrosis (IN) is associated with high ammonium (NH₄⁺) concentration in flower clusters, shade, cool wet weather preceding bloom, and excessive vigor. Faults in NH₄⁺ assimilation are suspected to cause a rise in NH₄⁺ concentration to toxic levels in flower cluster but not other tissues. In this study, shading whole vines of Pinot noir increased flower NH₄⁺ concentration if applied at budbreak (early) or 1 wk before bloom (late), but only late application of shade to individual shoots raised it. Late, complete shoot defoliation raised flower

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33

Dry, Peter Ronald. "Response of grapevines to partial drying of the root system / Peter Ronald Dry." Thesis, 1997. http://hdl.handle.net/2440/19152.

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Bibliography: p. 261-273.<br>vi, 273 p. : ill. (some col.) ; 30 cm.<br>The general hypothesis tested in this study was that: 'partial drying of the root system of grapevines will result in reduced vegetative growth with beneficial effects for fruit yield, fruit composition and water-use efficiency'. Previously published work has suggested that partial drying of the root system may give rise to non-dydraulic root-derived signals capable of changing leaf development and transpiration.<br>Thesis (Ph.D.)--University of Adelaide, Dept. of Horticulture, Viticulture and Oenology, 1998

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34

Stoll, Manfred. "Effects of partial rootzone drying on grapevine physiology and fruit quality." Thesis, 2000. http://hdl.handle.net/2440/37734.

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Growth, productivity and fruit quality of grapevines are closely linked to soil water availability. Withholding of water for any length of time results in slowed growth. If drought continues yield may be lost. Vines can be manipulated to stimulate early defence mechanisms by decreasing soil water availability. By using an irrigation technique, which allows for separate zones with different soil moisture status, it is possible to stimulate response mechanisms of the root system which are normally related to water stress. The difficulty of separating 'wet' and 'dry' zones was initially overcome

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35

Kingston, Kim. "Digestive and feeding physiology of Grape Phylloxera (Daktulosphaira vitifoliae Ftch)." Phd thesis, 2007. http://hdl.handle.net/1885/49425.

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Grape phylloxera (Daktulosphaira vitifoliae Fitch, Hemiptera: Phylloxeridae) is a worldwide pest of the viticulture industry due to damage caused to the root system of the European grapevine, Vitis vinifera L. (Vitaceae). The main management option for radicicolae grape phylloxera is the use of resistant rootstocks, however due to the success of this management option a range of questions relating to the biology, nutrition and feeding behaviour of the pest insect remain unanswered. This thesis addressed a number of these questions in order to extend the current knowledge of the biological char

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36

Xu, Huining. "The influence of reproductive effort on root dynamics and physiology in Concord grape." 2008. http://etda.libraries.psu.edu/theses/approved/PSUonlyIndex/ETD-2435/index.html.

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37

Garrido, Andreia Raquel Martins. "Physiology of photosynthetic grape berry tissues: the effects of canopy light microclimate and climate stress mitigation strategies." Doctoral thesis, 2021. http://hdl.handle.net/1822/76912.

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Tese de doutoramento em Biology<br>A cultura da videira tem uma elevada relevância económica e cultural. Atualmente, esta espécie enfrenta desafios difíceis pois, num contexto de alterações climáticas, a severidade dos stresses abióticos está a aumentar, causando impactos negativos na fisiologia da videira, em particular na atividade fotossintética e na regulação do estado hídrico. Desta forma, uma gestão adequada da luz/radiação na copa é essencial para garantir uma boa produção de uvas e vinho. Previamente, mostrámos que o exocarpo e os tegumentos das sementes de bagos de uva de uma

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Mota, André Manuel Oliveira. "Continuous fermentation of alcohol-free beer: bioreactor hydrodynamics and yeast physiology." Doctoral thesis, 2012. http://hdl.handle.net/1822/23118.

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Tese de doutoramento em Biological and Chemical Engineering<br>In this study, the continuous product ion with immobilized cells of beer without alcohol was investigated. Apart from the evaluation of the various parameters affecting the quality of the continuous product ion of alcohol- free beer, a detailed study on the hydrodynamics of three phase bioreactors was also done. One of the major costs associated with continuous fermentations is the carrier cost where the yeast is immobilized. Two carriers that are byproducts of the brewing industry and agriculture (corn cobs and spent grains) were

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Pickering, Andrea Hilary. "Factors affecting the predisposition of 'Cabernet Sauvignon' grapevines (Vitis vinifera L.) to the physiological disorder, bunch stem necrosis : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Plant Physiology at Massey University, Palmerston North, New Zealand." 2006. http://hdl.handle.net/10179/1513.

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Bunch stem necrosis (BSN) is a physiological disorder in grapes. It results in shrivelled berries with poor quality attributes such that wine produced from grapes with high BSN incidence is of compromised quality. Past research has proposed many different hypotheses to explain the disorder. Literature indicates that conditions during certain stages of development may predispose berries to BSN but results are not consistent as to which stage is the critical one or which factors have the most impact. This study was designed to resolve these points of uncertainty. Treatments that either enhanced

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