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Dissertations / Theses on the topic 'Arteries'

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1

Bass, David Hyman. "Infra-inguinal arterial bypass procedures at Groote Schuur Hospital, 1977-1983 : analysis and evaluation of results." Master's thesis, University of Cape Town, 1987. http://hdl.handle.net/11427/26248.

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Infra-inguinal arterial bypass is becoming increasingly popular as a means of alleviating incapacitating symptoms of atherosclerosis and other progressive diseases affecting the arteries of the lower limb. The role of this procedure in limb salvage is controversial but an aggressive attitude is emerging from many centres. It is accepted that the majority of atherosclerotic patients have a short life expectancy but reconstructive vascular surgery has an important role to play in improving their quality of life. Progress in infra-inguinal bypass surgery has centred mainly on the development of s
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2

Peng, Siwei. "Medin Amyloid in Human Arteries and its Association with Arterial Diseases." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis (AUU) : Universitetsbiblioteket [distributör], 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-6700.

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3

Daly, Chris D. "Artificial arteries and bioreactors /." [St. Lucia, Qld.], 2005. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe19028.pdf.

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4

Evans, Richard James. "Neuronal control mesenteric arteries." Thesis, University of Oxford, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.279879.

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5

Fan, Jinwu. "Dynamic Strength of Porcine Arteries." Thesis, Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/19853.

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The failure behavior of collagenous soft tissues is important for clinical problems of plaque rupture and trauma. Cyclic tests require high frequencies that may affect the strength properties of the soft tissues. Experimental results of mechanical response of blood vessels to physiologic loads can be used to model and predict plaque rupture and direct medical therapy or surgical intervention. The goal of the study is to measure the mechanical failure properties of arteries to determine if they are strain rate and cycle dependant and to measure the progressive damage of arteries with time depen
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6

Chen, Changyi. "Intimal hyperplasia in endarterectomized arteries." Diss., Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/25393.

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7

Priest, Rachel Michelle. "Vasorelaxant mechanism in pulmonary arteries." Thesis, King's College London (University of London), 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243439.

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8

Gammack, D. "Blood flow in twisted arteries." Thesis, University of Surrey, 1998. http://epubs.surrey.ac.uk/844008/.

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The motivation for this research into flow in pipes with non-uniform geometry comes from physiological flows. It is now widely believed that haemodynamics plays an important role in the initiation and development of atherosclerosis. Experiments have shown that the preferred sites for atherogenesis are regions of low wall shear stress. The build-up of atherosclerotic plaques in the coronary arteries can lead to arterial blockage and coronary failure. Previous studies have examined uniformly curved pipes and, more recently, uniformly curved and twisted pipes. However, it is well known that the a
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9

Andreeva, V. S. "Arteries of the barrelled part." Thesis, Sumy State University, 2017. http://essuir.sumdu.edu.ua/handle/123456789/53936.

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Introduction. As well as all the mammals investigated earlier, in some sites of a trunk of a brain of the person have a combination rectilinear and a setevidny form in distribution of arterial vessels. Work purpose. To investigate a structure of internal arteries of a barreled part of a brain of the person.
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10

Shubat, Pamela Jane. "Monocrotaline toxicity and pulmonary arteries." Diss., The University of Arizona, 1988. http://hdl.handle.net/10150/184533.

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Monocrotaline is a pyrrolizidine alkaloid found in plants implicated in livestock and human poisoning. Laboratory rats given monocrotaline develop pulmonary hypertension and right heart hypertrophy in the weeks following administration of the chemical. Lung weight increases and right heart hypertrophy correlate with increased pulmonary artery pressure. Rats which consumed monocrotaline drinking water (20 mg/l) for only 4 days developed significant increases in lung and heart weights 14 days after exposure began. This exposure was equivalent to a dose of 15 mg/kg. Other treatment combinations o
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11

Gilpin, Crystal Marie. "Cyclic Loading of Porcine Coronary Arteries." Thesis, Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/6912.

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Atherosclerotic plaque caps are composed of a composite soft tissue material that becomes subjected to cyclic loading under stenotic flow conditions. The cyclic loading causes the plaque cap to fatigue and eventually fail. The hypothesis of this work is that arteries and plaque caps may fatigue which may be predicted by a stress vs. number of cycles (S-N) curve. The S-N curve has not been determined for almost any biological soft tissue. The Specific Aim of the thesis is to quantify an S-N curve for normal arterial soft tissue collected from cyclic tension testing. Coronary arteries f
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12

Donnelly, Patrick Martin. "Computed tomography of the coronary arteries." Thesis, Queen's University Belfast, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.446135.

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13

Cartwright, Virginia Lucille, and n/a. "Biomechanical properties of arteries and veins." University of Otago. Department of Physics, 2005. http://adt.otago.ac.nz./public/adt-NZDU20060908.145011.

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Saphenous veins are widely used as graft material in coronary artery bypass surgery. Biomechanical testing may help identify veins with the optimum chance of longevity. In this thesis, the author has constructed an experimental apparatus to measure circumferential and axial stress-strain data for such arteries and veins. Three different experimental techniques were used to obtain the dimensions of the vessels during pressure-diameter tests; the traditional method of photographic and direct measurement of the external dimensions along with the assumption of incompressibility to approximate inne
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14

Song, Ying Ching. "Cryopreservation of arteries with dimethyl sulphoxide." Thesis, Open University, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.315284.

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15

Juan, Alba de [Verfasser], and Christoph [Akademischer Betreuer] Scheiermann. "Sympathetic innervation of arteries drives rhythmic leukocyte adhesion to arteries and veins / Alba de Juan ; Betreuer: Christoph Scheiermann." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2018. http://d-nb.info/1192215338/34.

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16

Zhang, Rui. "Vasoactive effects of lysophosphatidylcholine in small arteries." Thesis, University of British Columbia, 2009. http://hdl.handle.net/2429/7702.

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Lysophosphatidylcholine (1-acyl-sn-glycero-3-phosphocholine, LPC) is the most abundant glycerol-based lysophospholipid present in cell membranes and oxidized lipoproteins. It has been proposed that LPC contributes to the altered vaso-reactivity associated with various cardiovascular diseases in which elevated LPC levels were identified. However, the contribution of LPC in regulating vascular resistance has not been completely elucidated, as the majority of previous studies have used either large blood vessels or isolated cells. Therefore, our study aimed to investigate the vasoactive effect
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17

Ingrassia, Chris. "Segmentation and tracking of the coronary arteries." Honors in the Major Thesis, University of Central Florida, 1998. http://digital.library.ucf.edu/cdm/ref/collection/ETH/id/35.

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This item is only available in print in the UCF Libraries. If this is your Honors Thesis, you can help us make it available online for use by researchers around the world by following the instructions on the distribution consent form at http://library.ucf.edu/Systems/DigitalInitiatives/DigitalCollections/InternetDistributionConsentAgreementForm.pdf You may also contact the project coordinator, Kerri Bottorff, at kerri.bottorff@ucf.edu for more information.<br>Bachelors<br>Arts and Sciences<br>Computer Science
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18

Khabbaza, Elias Joseph. "Regulation of contraction in porcine coronary arteries /." The Ohio State University, 1987. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487325740717536.

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19

Pugliese, Francesca. "Multi-slice computed tomography of coronary arteries." [S.l. : Rotterdam : The Author] ; Erasmus University [Host], 2008. http://hdl.handle.net/1765/13655.

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20

Saur, Stefan. "Quantitative assessment of atherosclerosis in coronary arteries." Konstanz Hartung-Gorre, 2009. http://d-nb.info/997605278/04.

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21

Alberding, Jonathan Paul. "Nonsteady pressure affects large arteries and endothelium." Diss., The University of Arizona, 2004. http://hdl.handle.net/10150/280582.

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Convective fluid motion through artery walls aids in transvascular transport of macromolecules. Although measurements of convective filtration have been reported, they were all obtained under constant transmural pressure. However, arterial pressure in vivo is pulsatile. Therefore experiments were designed to compare filtration under steady and pulsatile pressure conditions. Hydraulic conductance was measured in cannulated excised rabbit carotid arteries at steady pressure. Next, pulsatile pressure trains were applied within the same vessels, and simultaneously, arterial distension was monitore
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22

Gade, Jan-Lucas. "Mechanical Properties of Arteries : Identification and Application." Licentiate thesis, Linköpings universitet, Mekanik och hållfasthetslära, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-159942.

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In this Licentiate of Engineering thesis, a method is proposed that identifies the mechanical properties of arteries in vivo. The mechanical properties of an artery are linked to the development of cardiovascular diseases. The possibility to identify the mechanical properties of an artery inside the human body could, thus, facilitate disease diagnostization, treatment and monitoring. Supplied with information obtainable in the clinic, typically limited to time- resolved pressure-radius measurement pairs, the proposed in vivo parameter identi- fication method calculates six representative paramet
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23

Lewis, M. H. "Peripheral arterial disease from aetiology to surgical management." Thesis, University of South Wales, 2013. https://pure.southwales.ac.uk/en/studentthesis/peripheral-arterial-disease-from-aetiology-to-surgical-management(7defd31a-6995-4fc7-9302-2fced42b5982).html.

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The work presented includes over thirty peer reviewed published manuscripts based on studies undertaken during my surgical career. As Principal Investigator, I led the study conception/design/data acquisition/analysis/interpretation and was involved with writing the final drafts of all manuscripts prior to their formal submission to high impact factor peer-reviewed specialist journals. The thesis is divided into subsections reflecting my development and different interests within surgery. The subsections start with my learning basic research principles, moving onto clinical problem solving in
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24

Megens, Remco Theodorus Adrianus. "Vital imaging of large arteries using two-photon laser scanning microscopy focus on the arterial wall /." Maastricht : Maastricht : [Maastricht University] ; University Library, Universiteit Maastricht [host], 2008. http://arno.unimaas.nl/show.cgi?fid=10706.

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25

Ullberg, Ulla. "The human placenta : an angiographic study /." Stockholm, 2003. http://diss.kib.ki.se/2003/91-7349-499-2/.

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26

Lara-Montalvo, Ruben Angel. "Ultrasound determination of absolute backscatter from arterial wall structures." Link to electronic thesis, 2002. http://www.wpi.edu/Pubs/ETD/Available/etd-1203102-165958.

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27

Ögren, Mats. "Vascular morbidity and mortality in men with non-invasively detected peripheral arterial disease results from the prospective population study "Men born in 1914" /." Lund : Dept. of Community Health Sciences and the Dept. of Clinical Physiology, Malmö General Hospital, Lund University, 1994. http://catalog.hathitrust.org/api/volumes/oclc/39693808.html.

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28

Vedam, Hima. "Short-term hypoxia and arterial stiffness." Thesis, The University of Sydney, 2007. https://hdl.handle.net/2123/28093.

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The studies in this thesis assess the ventilatory and vascular effects of short-term awake isocapnic hypoxia in healthy subjects and those with obstructive sleep apnoea (OSA). The particular focus of this thesis is the impact of the hypoxic stimulus on indices of arterial stiffness, in particular the augmentation index (AIx) and time to reflection (Tr). The role of nitric oxide in this response in healthy subjects is also examined.
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29

Samuilis, Artūras. "Anatomical variants of the hepatic arteries and their influence on superior mesenteric artery hemodynamics." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2011. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2011~D_20110502_093516-43858.

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Anatomical variants of hepatic arteries are frequent. One of the most common origins of aberrant (atypically branching) hepatic arteries is superior mesenteric artery. Many physiologic and pathologic features influence hemodynamics of the latter artery. There were some sporadic cases in literature about the influence of aberrant hepatic artery arising from superior mesenteric artery to the hemodynamics of the latter artery, but no evidence based large extent studies were performed. Therefore the aim of this study was to evaluate how significant the aberrant hepatic artery branching from the su
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30

Wadsworth, R. M. "Regulation of contraction of arterial smooth muscle." Thesis, University of Strathclyde, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.248764.

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31

Hu, Jie. "Non-invasive assessment of dynamic properties in human arteries : with special reference to gestation and diabetes /." Stockholm, 1998. http://diss.kib.ki.se/search/diss.se.cfm?19980925hu.

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32

梁永雄 and Wing-hung Leung. "Quantitative coronary arteriography." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1991. http://hub.hku.hk/bib/B31981483.

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33

Wake, Amanda Kathleen. "Modeling Fluid Mechanics in Individual Human Carotid Arteries." Diss., Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/7562.

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In the interest of furthering the understanding of hemodynamics, this study has developed a method for modeling fluid mechanics behavior in individual human carotid arteries. A computational model was constructed from magnetic resonance (MR) data of a phantom carotid bifurcation model, and relevant flow conditions were simulated. Results were verified by comparison with previous in vitro experiments. The methodology was extended to create subject-specific carotid artery models from geometry data and fluid flow boundary conditions which were determined from MR and phase contrast MR (PCMR) sc
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34

Mokori, E. B. "The role of pannexin channels in small arteries." Thesis, University of Nottingham, 2016. http://eprints.nottingham.ac.uk/38019/.

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Pannexins (Panx) are membrane bound channels which allow the exchange of molecules, particularly ATP, between the cytoplasm and the extracellular space. Panx channels have been shown to be expressed in the vasculature, and there is evidence suggesting that they are involved in the regulation of vasoconstriction in small arteries. In mice thoracodorsal resistance arteries Panx1 channels are co localized with α1D-adrenoceptors on smooth muscle cells, and have been reported to open after α1D-adrenoceptor stimulation to release ATP which is then responsible for causing vasoconstriction by activati
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35

Vaughan, Gareth D. A. "Pulse propagation in the pulmonary and systemic arteries." Thesis, University of Glasgow, 2010. http://theses.gla.ac.uk/1785/.

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The one-dimensional model of Olufsen (2000) [*] for blood flow in the systemic arteries has been extended and built upon in a number of ways. Firstly, it has been applied to hypotheses of diseases of the systemic circulation, and that of the microcirculation. With a view to better understanding the microcirculation (the smallest vessels of the systemic circulation) and its diseases, the model has been extended to provide predictions of the propagating pressure pulse and flow rate in small arteries. Secondly, Olufsen’s model has been used as a base upon which to build a model of the pulmonary c
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36

Payvandi, S. "Mathematical modelling of flow in curved, compliant arteries." Thesis, Imperial College London, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.534971.

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37

Endesh, Naima Eltuhami M. "Contractile functions of Piezo1 channels in murine arteries." Thesis, University of Leeds, 2018. http://etheses.whiterose.ac.uk/20692/.

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Piezo1 proteins are Na+ and Ca2+ permeable mechanosensitive ion channels. Expressed on endothelial cell membranes, where they sense the shear stress forces created by blood flow, Piezo1 channels are essential for vascular development. The functional significance of vascular Piezo1 channels in adult physiology and pathology, however, remains largely unexplored. Therefore, using an inducible, endothelial-specific Piezo1 knock-out mouse line this study sought to identify and investigate the functional role of this channel in adult arterial vessels. Four morphologically and physiologically distinc
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38

Banerjee, Rusha. "Fatigue Analysis of Arteries Using Finite Element Method." Thesis, North Dakota State University, 2012. https://hdl.handle.net/10365/26532.

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In this thesis, the fatigue response of arteries to four specific physiological conditions representative of various morphological changes that artery undergo during its lifetime, was explored. Single layered nonlinear elastic micromechanical model of artery was developed for this purpose. A comparative study was completed on fatigue response, in the form of available life and shear stress accumulation, between hypertensive and normotensive arteries. The effects of morphological changes of ageing arteries on the fatigue response of the artery were studied. Change in stiffness, arterial dilat
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39

Locke, Victoria. "AMPK ACTIVATORS REGULATE CONTRACTILE FUNCTION OF MESENTERIC ARTERIES." VCU Scholars Compass, 2014. http://scholarscompass.vcu.edu/etd/3332.

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Vasoconstrictor tone in the splanchnic circulation redistributes blood flow during hemorrhage and resuscitation. A metabolic sensor, 5’adenosine monophosphate-activated protein kinase (AMPK), has been proposed to relax arteries by inhibiting myosin light chain (MLC) kinase (MLCK) and rho kinase (ROCK) activities. Because AMPK activation might be beneficial in re-establishing splanchnic blood flow during resuscitation, we sought to explore the relative ability of AMPK activators (AICAR, A769662, berberine (BBR) and simvastatin (SIMV)) to relax mesenteric artery (MA) contraction. Our data reveal
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40

Chen, Weiwei. "A coupled left ventricle and systemic arteries model." Thesis, University of Glasgow, 2015. http://theses.gla.ac.uk/7037/.

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Mathematical modelling and computational simulation are effective tools in studying the function of the cardiovascular system and diagnosing the progress of diseases in this system, especially when clinical experiments or measurements are limited or not capable to proceed. A variety of models have been developed related to different segments in the cardiovascular system, such as the heart, the valves, the systemic arteries and the pulmonary arteries, etc. Among these studies, modelling the left ventricle (LV) and systemic arteries (SA) have drawn a great deal of attention in the last several d
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41

Sun, Nanfeng. "Mathematical modelling of mass transport in large arteries." Thesis, Imperial College London, 2008. http://hdl.handle.net/10044/1/1313.

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Atherosclerosis is a major cause of morbidity and mortality in the western world. The focal depletion of oxygen and accumulation of macromolecules are believed to initiate, accelerate and complicate the development of atherosclerosis. However, species concentrations in vessel walls are difficult to measure in vivo non-invasively. Therefore, it is essential to obtain detailed concentration profiles of atherogenic molecules to gain further understanding of the mass transfer mechanisms within arterial walls. In the present study, comprehensive mathematical models describing species transport in l
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42

Stoll, Scott Thomas. "Naloxone Potentiation of Epinephrine Induced Vasoconstriction in Canine Skeletal Muscle Arteries." Thesis, University of North Texas, 1992. https://digital.library.unt.edu/ark:/67531/metadc277685/.

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Naloxone (NX) potentiated epinephrine (EPI) induced submaximal vasoconstriction in canine renal and skeletal muscle arterial segments, yet had no vasoconstrictor action alone. Developed tension generated in-vitro by 4 x 1mm. O.D. rings from 1st degree branches of canine femoral arteries was expressed as % of KCI induced maximum response. NX (10^-5 M) potentiated EPI induced submaximal contractions (34.2%) significantly more than contractions induced by norepinephrine, phenylephrine, lofexidine, ADH, KCI and serotonin (13.8,13.4,4.7,13.5,14.4 and 11.4% respectively). The NX response was unaffec
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43

Kölegård, Roger. "Distensibility in Arteries, Arterioles and Veins in Humans : Adaptation to Intermittent or Prolonged Change in Regional Intravascular Pressure." Doctoral thesis, KTH, Omgivningsfysiologi, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-25965.

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The present series of in vivo experiments in healthy subjects, were performed to investigate wall stiffness in peripheral vessels and how this modality adapts to iterative increments or sustained reductions in local intravascular pressures. Vascular stiffness was measured as changes in arterial and venous diameters, and in arterial flow, during graded increments in distending pressures in the vasculature of an arm or a lower leg. In addition, effects of intravascular pressure elevation on flow characteristics in veins, and on limb pain were elucidated. Arteries and veins were stiffer (i.e. pre
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44

Zhou, Xiaowei. "Investigation of ultrasound-measured blood flow related parameters in radial and ulnar arteries." Thesis, University of Dundee, 2017. https://discovery.dundee.ac.uk/en/studentTheses/cb2a68cb-949a-413f-b561-c137b7605583.

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The incidence of disease of the cardiovascular system is very high and increasing worldwide, especially in the developing world. The radial and ulnar arteries are implicated in some important ailments where blood flow related parameters such as flow rate (FR), wall shear rate (WSR), arterial wall motion (AWM) and pressure, all of which can be measured using ultrasound techniques, are useful in diagnosis and patient management. However these measurements are prone to error due to the manner of image formation and the complex flow conditions within the vessels. In this thesis, the errors in ultr
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45

Dye, Wendy Watson. "Altered biomechanical properties of large arteries in muscular dystrophy." Texas A&M University, 2005. http://hdl.handle.net/1969.1/4304.

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Muscular dystrophy is a disease characterized by skeletal muscle weakness and wasting, but little is known of alterations in the vascular system that occur with this disease. The culprit in many muscular dystrophies is a defective dystrophin-glycoprotein complex (DGC). The DGC is a group of transmembrane proteins that connects the cytoskeleton of muscle cells to the extracellular matrix; it plays a role in mechanotransduction and the maintenance of structural integrity of these cells, and includes the proteins dystrophin and sarcoglycan-delta. The absence of these proteins results in severe mu
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46

Geraghty, Annie. "Experiments on the Calcium-Sensing Receptor in Rat Arteries." Thesis, University of Manchester, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.518446.

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47

Satha, Ganarupan. "Goal Function Approach to Growth and Remodeling of Arteries." Licentiate thesis, Linköpings universitet, Mekanik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-104188.

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In this thesis we develop a new goal function approach to investigate stability of the growth processes in blood vessels and cost-optimal composition and geometry of these vessels. In the vascular system of a healthy individual, the living composition of the arterial wall must regenerate and remodel continuously during the entire lifetime to maintain itself. In some cases the system destabilizes due to disease, injury or other complex processes. To understand how and when this happens, several mathematical models have been developed. These models have included an evolution equation for mass fr
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48

Wishah, Mahmoud I. "Simulation of blood flow through stenotic and branched arteries." Thesis, University of Salford, 2007. http://usir.salford.ac.uk/26966/.

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Mathematical and physical models have been developed in order to study blood flow through arteries, numerically and experimentally. The aim of these models was to understand, apply and verify using realistic models how both flow and geometry interact through and downstream of stenosed and branched arteries. This interaction is examined in two ways; initially by investigating the influence of stenosis and branches on flow and then by examining the influence of flow haemodynamics parameters such as Reynolds number, stenosis severity, stenosis shape and bifurcation area ratio on the development o
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49

Haeck, Luc Bernard Arthur. "C W Doppler audiospectrum analysis in the iliac arteries." [Maastricht : Maastricht : Rijksuniversiteit Limburg] ; University Library, Maastricht University [Host], 1989. http://arno.unimaas.nl/show.cgi?fid=5512.

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50

Boonen, Henricus Cornelis Matjeu. "Excitation-contraction coupling in small arteries: role in hypertension." Maastricht : Maastricht : Universitaire Pers Maastricht ; University Library, Maastricht University [Host], 1992. http://arno.unimaas.nl/show.cgi?fid=6510.

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