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Dissertations / Theses on the topic 'Morphological adaptations'

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1

Henshaw, Thomas L. "Morphological adaptations of soybean in response to early season flood stress." [Gainesville, Fla.] : University of Florida, 2005. http://purl.fcla.edu/fcla/etd/UFE0011761.

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2

Price, Leonie. "The morphological adaptations of the maternal liver to pregnancy in the mouse." Thesis, University of Southampton, 2015. https://eprints.soton.ac.uk/399432/.

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The liver is known to increase in size in the mouse during pregnancy; however, the mechanisms behind this are not fully understood. There are inconsistencies in the literature, which argue whether hyperplasia or hypertrophy is responsible. The aim of this thesis was to investigate the possible mechanisms and to explain some of the molecular processes, which bring these adaptations about. To address this, virgin female C57Bl/6 mice were mated and culled at 3 time points during pregnancy and their livers analysed. Non-pregnant, age matched mice were analysed as controls. Phenotypic measurements
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3

Morgan, P. "Morphological and physiological adaptations of prosthecate bacteria to growth in low nutrient environments." Thesis, University of Warwick, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.373277.

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4

Miller, Luke Paul. "Life on the edge : morphological and behavioral adaptations for survival on wave-swept shores /." May be available electronically:, 2008. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.

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5

Mehta, Dheeraj. "The influence of extravascular stenting on late morphological and functional adaptations of experimental vein grafts." Thesis, Imperial College London, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.250166.

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6

Olne, Karin, and Ida Flenner. "Differences in exocuticle thickness in Leucorrhinia dubia (Odonata) larvae from habitats with and without fish." Thesis, Halmstad University, School of Business and Engineering (SET), 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-169.

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<p>Many prey species are able to develop different morphological structures as defence against</p><p>for example predators. Some of these structures are induced only by individuals exposed to a</p><p>predator. This phenomenon is called phenotypic plasticity. In this paper we examine whether</p><p>cuticle thickness in Leucorrhinia dubia (Odonata) larvae differed between specimens caught</p><p>in fish containing lakes and fish-free lakes respectively. We measured the thickness of the</p><p>cuticle from four different parts of the larvae; profemur, pronotum, ninth segment sternite and</p><p>ninth
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Noria, Sabrena. "Shear stress-induced morphological adaptations of endothelial cells, reorganization of cell adhesion complexes and the actin cytoskeleton." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/NQ63691.pdf.

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8

Pinheiro, Hugo Alves. "Physiological and morphological adaptations as associated with drought tolerance in robusta coffee (Coffea canephora Pierre var. kouillou)." Universidade Federal de Viçosa, 2004. http://www.locus.ufv.br/handle/123456789/10031.

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Submitted by Marco Antônio de Ramos Chagas (mchagas@ufv.br) on 2017-04-10T16:42:15Z No. of bitstreams: 1 texto completo.pdf: 200775 bytes, checksum: 0663c9ad48e1123c764746a1f7d8e744 (MD5)<br>Made available in DSpace on 2017-04-10T16:42:15Z (GMT). No. of bitstreams: 1 texto completo.pdf: 200775 bytes, checksum: 0663c9ad48e1123c764746a1f7d8e744 (MD5) Previous issue date: 2004-02-19<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>Clones de Coffea canephora Pierre var. kouillou com tolerância diferencial à seca vêm sendo selecionados com base em diferenças de produtividad
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Marquart, Kathrin [Verfasser], and Johannes [Akademischer Betreuer] Steidle. "Habitat use and morphological adaptations of endemic rodents (Muroidea: Nesomyinae) of East Madagascar / Kathrin Marquart. Betreuer: Johannes Steidle." Hohenheim : Kommunikations-, Informations- und Medienzentrum der Universität Hohenheim, 2015. http://d-nb.info/1075249376/34.

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10

Silva, Bruna Gonçalves Cordeiro da. "Adaptações neuromusculares e morfológicas de treinamentos de força realizados com amplitudes total e parcial de movimento." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2012. http://hdl.handle.net/10183/61125.

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O objetivo deste estudo foi comparar as adaptações neuromusculares e morfológicas de treinamentos de força realizados com amplitudes parcial e total de movimento nos músculos flexores de cotovelo e extensores de joelho. Participaram do estudo 41 voluntários do sexo masculino destreinados em força (23,78 ± 3,27 anos), divididos em três grupos: PS-TI (Parcial Superior – Total Inferior; n=14), TS-PI (Total Superior – Parcial Inferior; n=16) e GC (Grupo Controle; n=11). O grupo PS-TI realizou o treinamento de flexão de cotovelo em amplitude parcial (40°- 90°) e de extensão de joelho em amplitude t
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11

Thomas, H. G. (Hannah Grace). "Seasonal patterns of burrow architecture and morphological adaptations to digging in three sympatric species of South African mole-rat, Bathyergus suillus (Shreber, 1782), Georychus capensis (Pallas, 1778) and Cryptomys hottentotus hottentotus (Lesson, 1826)." Thesis, University of Pretoria, 2013. http://hdl.handle.net/2263/30762.

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Mammals use burrows for numerous functions. As these functions become more complex so does the burrow system. Although this underground environment is buffered from many climatic factors, it does pose an energetically expensive way of life. Due to the increased energy expenditure that is needed to forage and live underground, most subterranean mammals have evolved morphological adaptations to living in such a specialised environment. To this end, the burrow systems of three different African mole rats were considered, which range in body size, sociality and apparent foraging behaviour. Bathye
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Dias, Paulo Cesar. "Variação espacial da fotossíntese e de mecanismos de fotoproteção no cafeeiro (Coffea arabica L.)." Universidade Federal de Viçosa, 2006. http://locus.ufv.br/handle/123456789/4287.

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Made available in DSpace on 2015-03-26T13:36:34Z (GMT). No. of bitstreams: 1 texto completo.pdf: 218982 bytes, checksum: 38c14fe52f8aa57350cdc239a6dbf920 (MD5) Previous issue date: 2006-02-16<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>This study aimed to identify potential photoprotective mechanisms and how they could be spatially and diurnally adjusted. It was conducted in an arabica coffee tree plantation (northsouth-oriented hedgerows) in Viçosa, Southeastern Brazil. Gas exchange, chlorophyll a fluorescence, and antioxidant system were examined throughout. Evaluatio
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Young, Rebecca Lynn. "Evolution and Development of Diversity: An Example in Foraging Morphology of Soricid Shrews." Diss., The University of Arizona, 2008. http://hdl.handle.net/10150/195260.

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Divergent natural selection for use of locally abundant resources can lead to diversification within and across species. However, the consequences of divergent selection for phenotypic evolution also depend on the development of variation. Because relationships among traits such as shared developmental timing or common involvement in an organismal function can channel variation generated during development, these relationships strongly influence the direction of evolution.During development of the mammalian mandible multiple tissues of distinct developmental origins interact with inputs from t
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14

Weisman, Andrew D. "Adaptation and application of morphological pseudoconvolutions to scanning tunneling and atomic force microscopy /." Online version of thesis, 1991. http://hdl.handle.net/1850/11231.

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15

Gomes, Rodrigo Leite. "O uso da percepção subjetiva do esforço da sessão no controle da progressão da carga do treinamento de força: uma alternativa ao modelo tradicional." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/39/39132/tde-10062016-100045/.

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O objetivo deste estudo foi investigar se a progressão da carga do treinamento de força (TF) de acordo com a monitoração da percepção subjetiva do esforço da sessão (PSE da sessão) pode ser mais eficaz no desenvolvimento da força motora e hipertrofia muscular em relação ao modelo tradicional de prescrição do TF baseado apenas na carga externa do treinamento. Métodos: Vinte sujeitos do sexo masculino com experiência prévia em treinamento de força (5,4± 4,1 anos) foram submetidos a seis semanas de TF no exercício agachamento (2x/sem.). Os sujeitos foram separados em dois grupos: i) grupo progres
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16

Werzner, Annegret [Verfasser], and Wolfgang [Akademischer Betreuer] Stephan. "Local adaptation in Drosophila melanogaster : Molecular and morphological aspects / Annegret Werzner. Betreuer: Wolfgang Stephan." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2011. http://d-nb.info/1018615679/34.

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17

Chu, Chun-hung. "Surface morphological changes and marginal adaptation of glass cermet cement restorations in primary molars." Click to view the E-thesis via HKUTO, 1992. http://sunzi.lib.hku.hk/HKUTO/record/B38628223.

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Chu, Chun-hung, and 朱振雄. "Surface morphological changes and marginal adaptation of glass cermet cement restorations in primary molars." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1992. http://hub.hku.hk/bib/B38628223.

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19

Vickerton, Paula. "Morphological, histological and biomechanical adaptation of the rat musculoskeletal system to electrical muscle stimulation." Thesis, University of Liverpool, 2014. http://livrepository.liverpool.ac.uk/2010684/.

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Musculoskeletal tissues exhibit a remarkable extent of plasticity throughout life, with tissues continually able to adapt in line with functional demands. As the skeleton plays a major structural role, its form is profoundly influenced by its mechanical environment, which is largely determined by muscular contraction. Despite the clear functional link between muscle and bone relatively little is known about the biomechanical relationship between these tissues. This thesis therefore focuses upon the use of implantable neuromuscular stimulators to provide controlled muscular mechanical stimuli.
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20

Papadopoulos, Anthony. "An ecophysiological framework for the morphological evolution of bluegill sunfish." [College Station, Tex. : Texas A&M University, 2007. http://hdl.handle.net/1969.1/ETD-TAMU-1393.

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21

Komiya, Takefumi. "The origin and ecological and morphological divergence of Sarcocheilichthys fishes in Lake Biwa." 京都大学 (Kyoto University), 2013. http://hdl.handle.net/2433/179371.

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22

Marsh, Donald. "Changes in Psychological, Morphological, and Performance Characteristics in Preparation for a National Weightlifting Competition." Digital Commons @ East Tennessee State University, 2019. https://dc.etsu.edu/etd/3642.

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The primary aim of this study was to examine the time course of change in muscle morphology and vertical jump performance in weightlifters preparing for a national competition. The secondary aim of this study is to examine how perceived recovery and stress state corresponds with alterations in training load leading up to competition. Eleven Olympic Training Site weightlifters completed a 4-week peaking phase for a national competition. Body mass, stress and recovery psychometric measures, and unloaded/loaded (20kg) squat jump height (SJH) were measured weekly and at the competition site. Vastu
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23

Andersson, Emma. "Adaptive trait utility in the feeding apparatus of European whitefish (Coregonus lavaretus) : Relationships between feeding morphology and maximum and minimum prey size in the diet of whitefish." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-104986.

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Whitefish (Coregonus lavaretus) populations diverge into morphs that differ in body size along a benthic-limnetic axis and throughout the depth of the water column. This process is assumedly initiated by the presence of northern pike (Esox lucius) and is followed by morphological adaptations to available food resources. In this study eight populations of whitefish was studied with the purpose of increasing the knowledge about adaptive trait utility in the feeding apparatus of whitefish. This was done by analyzing the mean and absolute maximum and minimum prey size ingested by fish along four m
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Hopper, Garrett W. "Ecological and morphological variation of darters among assemblages in Oklahoma streams." Thesis, Kansas State University, 2015. http://hdl.handle.net/2097/20116.

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Master of Science<br>Biology<br>Michael Tobler<br>Environmental variation can shape phenotypic variation in organisms. Most evidence for trait differentiation along environmental gradients comes from analyses of dichotomous habitat types that differ in only one or few environmental factors. In reality, however, environmental variation is often more subtle, gradual, and multifarious. I investigated geographic variation in body shape, trophic resource use, and individual diet specialization in two species of darters (Etheostoma spectabile and E. flabellare; Percidae) that occur along river gradi
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Karimu, Ande Lamidi. "Morphological adaptation of the human placenta for gaseous exchange : formation, stability and specialization of the vasculosyncytial membranes." Thesis, University of Cambridge, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.339113.

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26

King, Judy A. "Adaptation of Striped Bass to Sea Water Following Direct Transfer from Freshwater: Morphological, Biochemical, and Physiological Parameters." Digital Commons @ East Tennessee State University, 1987. https://dc.etsu.edu/etd/2932.

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There has been heightened interest in the biology of striped bass (Morone saxatilis) because of increased pollution in their native spawning grounds and because of their extensive use in landlocked sport fisheries. Their euryhalinity makes them an excellent species for osmoregulation studies. The objective of this research was to study the rate of adaptation of striped bass gills to sea water (3% salt) after direct transfer from freshwater using biochemical (ion transport enzyme levels), physiological (chloride efflux), and ultrastructural methods. Striped bass have specialized
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Nagui, Refki Khalil Peter. "Hox genes and the evolution of adaptive phenotypes." Thesis, Lyon 1, 2014. http://www.theses.fr/2014LYO10288/document.

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Les populations sont soumises à des pressions sélectives qui agissent sur certains traits entraînant une divergence phénotypique. L'évolution des morphologies adaptatives est souvent liée avec des changements de structures préexistantes. Les insectes semi-Aquatiques ont subi une croissance de pattes exagérée qui est associée à leur adaptation et locomotion efficace à la surface de l'eau. Cette croissance excessive a facilitée l'exploitation de l'habitat aquatique restreint pour les espèces terrestres apparentées. En outre, le groupe dérivé des gerris a subi des modifications supplémentaires au
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Caré, Oliver [Verfasser]. "Norway spruce in German low mountain ranges – morphological distinctiveness and genetic adaptation of high elevation provenances / Oliver Caré." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2021. http://d-nb.info/1234236222/34.

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Labonne, Gaëlle. "Modèle de développement et évolution du patron dentaire chez les rongeurs actuels et fossiles : radiation adaptative et émergence de phénotype : le cas des Arvicolinae (Rodentia)." Thesis, Dijon, 2014. http://www.theses.fr/2014DIJOS086/document.

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L’évolution de la dentition des mammifères se caractérise par d’importantes innovations morphologiques comme la mise à occlusion et l’hétérodontie. Parmi rongeurs, dont la formule dentaire est fortement réduite, les arvicolinés possèdent une dentition hautement dérivée, avec des molaires prismatiques et hypsodontes. L’objectif de cette thèse est d’explorer les différentes innovations morphologiques de la dentition au travers des aspects développementaux et adaptatifs. Les méthodes de morphométrie géométrique sont utilisées sur les molaires, les incisives et les mandibules afin d’explorer les d
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Viana, Vivian Ebeling. "Expressão de genes WRKY e alterações morfológicas em arroz sob estresse por submergência." Universidade Federal de Pelotas, 2014. http://repositorio.ufpel.edu.br:8080/handle/prefix/3065.

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Submitted by Gabriela Lopes (gmachadolopesufpel@gmail.com) on 2016-09-28T12:43:45Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) DISSERTAÇÃO CD 2.pdf: 3402780 bytes, checksum: 6767c83b34c1fb208e8cd7bc97b095d1 (MD5)<br>Approved for entry into archive by Aline Batista (alinehb.ufpel@gmail.com) on 2016-09-28T17:17:17Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) DISSERTAÇÃO CD 2.pdf: 3402780 bytes, checksum: 6767c83b34c1fb208e8cd7bc97b095d1 (MD5)<br>Made available in DSpace on 2016-09-28T17:17:17Z (
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Menezes, Elytania Veiga. "Seleção positiva sobre o gene do hormônio do crescimento e sua associação com a diversificação de tamanho nos Platyrrhini." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/41/41131/tde-02102008-142734/.

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As bases moleculares da diversidade fenotipica dentro de espécies são de grande interesse aos biólogos evolutivos porque a evolução morfológica adaptival depende da seleção de variantes genéticas. Entretanto, há poucos exemplos da variação fenotípica cuja a base molecular é compreendida, especialmente entre animais vertebrados. Biólogos em geral concordam que o processo da seleção natural é a fonte predominante de diversificação morfológica. Tem sido documentado previamente que existe diversificação adaptativa da morfologia craniana entre os taxa mais elevados de Platyrrhini e também em espéci
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Heynen, Martina [Verfasser], Jost [Akademischer Betreuer] Borcherding, and Hartmut [Akademischer Betreuer] Arndt. "Food, Fear and Defence : Behavioral and morphological adaptation of juvenile perch under the risk of predation / Martina Heynen. Gutachter: Jost Borcherding ; Hartmut Arndt." Köln : Universitäts- und Stadtbibliothek Köln, 2011. http://d-nb.info/1038065933/34.

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Brumlop, Sarah [Verfasser]. "Agrobiodiversity through evolutionary plant breeding – System specific adaptation of agronomic and morphological traits and effective populations size in composite cross populations of winter wheat / Sarah Brumlop." Kassel : Universitätsbibliothek Kassel, 2018. http://d-nb.info/1177737574/34.

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34

Maestri, Renan. "Evolução morfológica na radiação dos roedores sigmodontíneos : ecologia e história evolutiva." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2017. http://hdl.handle.net/10183/163695.

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Radiações evolutivas estão entre os eventos mais fascinantes da evolução. Grande parte da diversidade da vida, tanto de espécies como ecológica, surgiu nos breves intervalos temporais de rápida especiação que configuram as radiações. As causas ecológicas e não-ecológicas do surgimento da diversidade em radiações evolutivas, em especial nas radiações adaptativas, são tema de pesquisa há muito tempo, pelo menos desde que Darwin observou a imensa diversidade de um grupo de pássaros nas ilhas Galápagos. Desde então, as ilhas têm sido os ambientes ideais para o estudo desse fenômeno, e foi a partir
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McCarthy, John P. "Compatibility of concurrent strength and endurance training muscle morphological, electromyographic, and functional adaptations /." 1991. http://catalog.hathitrust.org/api/volumes/oclc/24297050.html.

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Thesis (Ph. D.)--University of Wisconsin--Madison, 1991.<br>Vita. Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 182-194).
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Branco, Marco António Colaço. "Biomechanical and morphological adaptations in women during pregnancy and the postpartum period in walking." Doctoral thesis, 2016. http://hdl.handle.net/10400.5/11619.

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A gravidez é uma fase especial da vida, com diversas alterações nos sistemas hormonais, anatómicos, e na composição corporal da mulher. No entanto, não é claro que alterações biomecânicas tridimensionais ocorrerem. Através do acompanhamento da mulher na gravidez e pós-parto, os objetivos da presente tese foram: 1) determinar os parâmetros temporais e espaciais do ciclo da marcha; 2) descrever a cinemática angular do membro inferior; 3) calcular os momentos e potências articulares do tornozelo, joelho e coxofemoral, utilizando o cálculo por dinâmica inversa; 4) descrever as magnitudes dos picos
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Mota, Patrícia Gonçalves Fernandes da. "Morphological and functional adaptations of the abdominal wall during pregnancy and in the postpartum period." Doctoral thesis, 2014. http://hdl.handle.net/10400.5/8347.

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Doutoramento em Motricidade Humana na especialidade de Biomecânica<br>A diástase dos retos abdominais (DRA) carateriza-se pela separação dos músculos rectos abdominais, sendo que o incremento da distância inter-rectos (DIR) se inicia durante a gravidez e prolonga-se pelo puerpério. A fiabilidade dos instrumentos de registo desta condição é reduzida sendo escasso o conhecimento sobre a prevalência e factores de risco que lhe estão associados. Adicionalmente existe pouca evidência sobre o efeito na prevenção e/ou agravamento da DIR induzida pelos trabalho abdominal. Assim, foram objetivos
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Badlangana, Ludo Nlambiwa. "Constraints versus adaptations as contending evolutionary explanations of morphological structure : The giraffe (Giraffa Camelopardalis) head and neck as a heuristic model." Thesis, 2008. http://hdl.handle.net/10539/5853.

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The current study uses the head and neck of giraffe (Giraffa camelopardalis) as a model for tracking the course of evolutionary change. Gould (2002) has argued that there are three main avenues of evolutionary change that result in the genesis of new morphologies. These are phylogenetic constraints, structural or allometric scaling laws of form, and specific unique adaptations. It is well known that the unique characteristic of the giraffe is its extremely long neck and yet, it only has seven cervical vertebrae. To study the neck the vertebral body lengths of different aged giraffes wer
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39

Camarillo, Henry. "Functional consequences of morphological variation between locally adapted populations." Thesis, 2018. http://hdl.handle.net/2097/39323.

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Master of Science<br>Department of Biology<br>Michael Tobler<br>Natural selection drives the evolution of traits to optimize organismal performance, but optimization of one aspect of performance can often influence other aspects of performance. Here, we asked how phenotypic variation between locally adapted fish populations affect locomotion and ventilation, testing for functional trade-offs as well as trait-performance correlations. Specifically, we investigated two populations of livebearing fish (Poecilia mexicana) that inhabit distinct habitat types (hydrogen-sulfide-rich springs and adjac
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Santos, Rute Andreia Martins dos. "Morphological ultrasound evaluation in acute and chronic muscle overloading." Doctoral thesis, 2017. http://hdl.handle.net/10400.5/15038.

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Introduction: Ultrasound (US) has an important role in musculoskeletal (MSK) evaluation, allowing the study of muscle morphology and function. Muscle thickness (MT) and muscle echo-intensity (EI) are two important parameters that may quantify muscle structural adaptations to a variety of stimuli. US elastography can also offer semi-quantitative and/or quantitative assessment of tissue stiffness providing relevant information about adaptations of muscle mechanical properties. Purpose: The general aim of the studies presented in this thesis is to explore the potential of quantitative US i
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41

Stillman, Jonathon Harris. "A comparative analysis of morphological, physiological, and biochemical adaptation to abiotic stress in intertidal porcelain crabs, genus Petrolisthes." Thesis, 1998. http://hdl.handle.net/1957/33573.

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Organismal tolerance to abiotic environmental stresses contributes significantly to setting the distribution limits of organisms, as demonstrated by vertical zonation patterns in the marine intertidal zone. In this thesis, the ultimate (evolutionary) and proximate (mechanistic) causes of tolerance to temperature and emersion stresses associated with the intertidal zone were examined using porcelain crabs, genus Petrolisthes. Species of Petrolisthes from intertidal and subtidal microhabitats of four biogeographic regions of the Eastern Pacific were used in phylogenetically-based comparative ana
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Alves, Madalena Lino de Sousa Delgado. "Caracterização dos ginastas de Teamgym a nível do perfil morfológico e da incidência de lesões." Master's thesis, 2016. http://hdl.handle.net/10400.5/12096.

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A investigação realizada tem como propósito determinar qual o perfil morfológico mais adequado a um atleta de Teamgym. Pretende-se aumentar a assertividade do processo de treino, sabendo que perfil morfológico os atletas deveriam atingir de acordo com as exigências e características da disciplina. Assim, estudou-se uma amostra de 85 atletas, entre os 9 e os 25 anos, dos escalões juniores e seniores, federados pelo Sporting Clube de Portugal. Foram registadas três formas diferentes de recolha de dados: bioimpedância, antropometria e questionário adaptado - Estudo sobre as lesões em Ginastas de
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