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Dissertations / Theses on the topic 'Physical Aspects of Phosphenes'

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1

Möbius, Wolfram. "Physical aspects of chromatin constituents." Diss., lmu, 2010. http://nbn-resolving.de/urn:nbn:de:bvb:19-119872.

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2

Knowles, Tuomas Pertti Jonathan. "Physical aspects in protein aggregation." Thesis, University of Cambridge, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.612258.

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3

Drescher, Knut. "Physical aspects of multicellular behaviour." Thesis, University of Cambridge, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.609174.

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4

Sanderson, James Stuart. "Physical aspects of starch biodiversity." Thesis, University of Cambridge, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.619816.

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5

Murray, Michael Dominic. "Physical aspects of complete denture retention." Thesis, [Hong Kong] : Faculty of Dentistry, University of Hong Kong, 1989. http://sunzi.lib.hku.hk/hkuto/record.jsp?B12555009.

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6

Brent, William. "Physical and perceptual aspects of percussive timbre." Diss., [La Jolla, Calif.] : University of California, San Diego, 2010. http://wwwlib.umi.com/cr/fullcit?p3407993.

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Thesis (Ph. D.)--University of California, San Diego, 2010.<br>Title from 1st page of PDF file (viewed July 8, 2010). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references: Leaves 147-154.
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7

Campos, Claudio Milton Montenegro. "Physical aspects affecting granulation in UASB reactors." Thesis, University of Newcastle Upon Tyne, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.278700.

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8

Marshall, Niall. "Physical and morphological aspects of polymer stability." Thesis, University of Sussex, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366217.

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9

Kriesten, Ute. "Quantitative aspects of physical ageing in polymers." Thesis, University of Aberdeen, 1993. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU055702.

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Physical ageing, which is the spontaneous increase of mechanical relaxation times after quenching from above the glass transition temperature, was the subject of this study. The quench at the beginning of physical ageing serves to 'rejuvenate' the material. This means it reproducibly creates a frozen-in non-equilibrium material structure with an increased mobility which then relaxes towards equilibrium. The creep behaviour is used to represent the molecular mobility, and was measured with small strain torsional creep tests. As the mobility decreases the retardation time increases. A quantitati
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10

Kirkegaard, Julius Bier. "Physical and stochastic aspects of microorganism behaviour." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/277543.

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This thesis studies physical and stochastic aspects of microorganisms. From the point of view of $\textit{physics}$, the studies in this thesis are motivated by the goal of gaining biological insight using the machinery of physics and mathematics. From the point of view of $\textit{biology}$, the studies in this thesis focus primarily on choanoflagellates, eukaryotes that are the closest living unicellular relatives of animals. This choice of model organism was motivated by the important biological question of the origin of multicellularity. Why was it that single-celled organisms evolved to b
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11

Keene, Frank Richard. "Aspects of coordination chemistry /." Title page, contents and abstract only, 1998. http://web4.library.adelaide.edu.au/theses/09SD/09sdk26.pdf.

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12

Wellington, Geoffrey R. "Novel aspects of hydrodynamic voltammetry." Thesis, University of Oxford, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334277.

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13

El, Gihani Moharem Taha. "Aspects of some alkylation reactions." Thesis, Loughborough University, 1995. https://dspace.lboro.ac.uk/2134/10420.

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Friedel-Crafts reactions of the (-)-8-phenylmenthyl and (+ )-trans-2-(acumyl) cycJohexyl aryl hydroxy acetates catalysed by trimethylsilyl triflate (TMSOTf) and equivalents in the presence of electron rich heterocycles gave the expected diarylacetates in high de 88%, via a planar cation. The interaction of trifluoromethanesulfonic (triflic) acid (TfOH) with either bistrimethylsilyl -acetamide (BSA) or -urea (BSU) can be used to generate stoichiometric amounts of trimethylsilyl triflate (TMSOTf) "in situ" , the system can be used efficiently to remove triflic acid from TMSOTf and to generate ca
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14

Law, D. "Aspects of ethylene epoxidation catalysis." Thesis, University of Liverpool, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.333563.

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15

Frauhiger, Lynnette. "The effects of daily physical activity on student academic achievement and physical health." Virtual Press, 2002. http://liblink.bsu.edu/uhtbin/catkey/1237761.

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The purpose of this study was to discover if daily physical activity affects students' academic achievement on standardized tests and their physical health as measured by their body composition, body mass index, cholesterol levels, and blood pressure.Purposeful sampling was used to recruit participants in this study. The experimental group consisted of 17 fourth-grade students who attend a rural Indiana school. The control group for this study consisted of 20 fourth-grade students who attend the same rural Indiana elementary school.After parental permission forms were returned from students in
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16

Torgén, Margareta. "Physical loads and aspects of physical performance in middle-aged men and women /." Stockholm : National Institute for Working Life (Arbetslivsinstitutet), 1999. http://ebib.arbetslivsinstitutet.se/ah/1999/ah1999_14.pdf.

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17

Hammam, Hagar. "Lipids in supercritical carbon dioxide physical functional aspects /." Lund : Dept. of Food Technology, University of Lund, 1994. http://catalog.hathitrust.org/api/volumes/oclc/39158186.html.

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18

Meacci, Giovanni. "Physical Aspects of Min Oscillations in Escherichia Coli." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2007. http://nbn-resolving.de/urn:nbn:de:swb:14-1169728830839-77682.

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The subject of this thesis is the generation of spatial temporal structures in living cells. Specifically, we studied the Min-system in the bacterium Escherichia coli. It consists of the MinC, the MinD, and the MinE proteins, which play an important role in the correct selection of the cell division site. The Min-proteins oscillate between the two cell poles and thereby prevent division at these locations. In this way, E. coli divides at the center, producing two daughter cells of equal size, providing them with the complete genetic patrimony. Our goal is to perform a quantitative study, both
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19

Minamoto, Yuki. "Physical aspects and modelling of turbulent MILD combustion." Thesis, University of Cambridge, 2014. https://www.repository.cam.ac.uk/handle/1810/245204.

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Moderate or Intense Low-oxygen Dilution (MILD) combustion is one of combustion technologies which can improve efficiency and reduce emissions simultaneously. This combustion type is characterised by the highly preheated reactant temperature and the relatively small temperature rise during combustion due to the intense dilution of the reactant mixture. These unique combustion conditions give MILD combustion very attractive features such as high combustion efficiency, reduction of pollutant emissions, attenuation of combustion instabilities and flexibility of the flow field. However, our underst
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20

Davies, Philip Andrew. "Physical and engineering aspects of protein separation processes." Thesis, University of Oxford, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.253017.

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21

I'Anson, S. J. "Physical aspects of chemical injection damp-proof courses." Thesis, University of Manchester, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.373622.

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22

Loveman, Geoff A. M. "Physical and physiological aspects of submarine tower escape." Thesis, University of Portsmouth, 2017. https://researchportal.port.ac.uk/portal/en/theses/physical-and-physiological-aspects-of-submarine-tower-escape(013197a3-d2b0-440e-8c35-c30f6c1260f1).html.

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My work has involved the investigation of physical and physiological issues related to submarine escape and rescue, including animal experiments using goats, human experiments,engineering and equipment based trials and also the development of a number of mathematical models for the prediction of equipment performance and physiological aspects of decompression. In addition to my published papers I have authored or made substantial contribution to over sixty reports funded by the United Kingdom Ministry of Defence (UKMoD). Experiments in which I made significant contribution in terms of original
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23

Meacci, Giovanni. "Physical Aspects of Min Oscillations in Escherichia Coli." Doctoral thesis, Technische Universität Dresden, 2006. https://tud.qucosa.de/id/qucosa%3A23940.

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The subject of this thesis is the generation of spatial temporal structures in living cells. Specifically, we studied the Min-system in the bacterium Escherichia coli. It consists of the MinC, the MinD, and the MinE proteins, which play an important role in the correct selection of the cell division site. The Min-proteins oscillate between the two cell poles and thereby prevent division at these locations. In this way, E. coli divides at the center, producing two daughter cells of equal size, providing them with the complete genetic patrimony. Our goal is to perform a quantitative study, both
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24

Loubser, Magdeleen. "Chemical and physical aspects of Lithium borate fusion." Diss., University of Pretoria, 2010. http://hdl.handle.net/2263/29114.

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Fused glass beads as a sample preparation method for X-ray Fluorescence spectroscopy (XRF) were introduced in 1957 by Claisse; it soon became the preferred method to introduce oxide samples to the spectrometer, because heterogeneity, mineralogical and particle size effects are eliminated during the fusion process. Matrix effects are largely reduced by the resulting dilution. With the recent advances in XRF spectrometers, instruments with enhanced generator and temperature stability, improved sensitivity (even for light elements), and effective matrix correction software are available. Conseque
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25

Stratton, B. "Aspects of structure-reactivity correlations." Thesis, University of East Anglia, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.382852.

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26

Sargeant, David George. "Aspects of calcium oxyhalide primary cells." Thesis, Loughborough University, 1993. https://dspace.lboro.ac.uk/2134/26854.

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This thesis investigates the use of calcium in the class of high energy density oxyhalide battery systems. Comparisons are made with the more researched and better established lithium based systems. A comprehensive literature review is presented, which outlines work performed over the past decade on this relatively new topic. Physical properties of the electrolyte and investigations into cell failure by both anode and cathode passivation are presented. Addition of sulphur dioxide to the electrolyte is shown to have a significant effect on these parameters. Raman spectroscopy is used to analyse
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27

Creaser, Dale Abel. "Aspects of composite lanthanide oxide chemistry." Thesis, University of Nottingham, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334547.

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28

Zillmann, Nadine. "Relationships between physical activity, self-perceptions and physical status in adolescents and adults." University of Western Australia. School of Sport Science, Exercise and Health, 2009. http://theses.library.uwa.edu.au/adt-WU2009.0059.

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[Truncated abstract] Regular engagement in physical activity is proven to decrease the risk of numerous chronic diseases and to improve mental well-being. However, many children and adults around the world fail to engage in sufficient levels of activity required to produce health benefits, with reports showing physical activity levels still on the decline. Perhaps because of this increase in sedentary lifestyles, obesity has become one of the biggest public health threats in the 21st century. Furthermore, both obesity and physical inactivity are closely related to psychological health, and may
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29

Lee, Heesu. "Effects of Levels of Physical Activity on Physical Self-Concept and Social Physique Anxiety Among College Students." CSUSB ScholarWorks, 2012. https://scholarworks.lib.csusb.edu/etd-project/2760.

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Physical activity plays a crucial role in contributing to psychological stability regarding physical concept. However, the evidence for showing the association between levels of physical activity and the psychological state has not been closed to focus on college students. This study was to examine the importance of physical activity by investigating the effects of different levels of physical activity on physical self-concept and social physique anxiety among college students. This study used a secondary data set approved by Institutional Review Board, and obtained a written permission and ap
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30

Tatum, JoLyn Inez. "The Relationship between Physical Activity and Sleep." Thesis, University of North Texas, 2010. https://digital.library.unt.edu/ark:/67531/metadc30518/.

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The current study aimed to examine the naturalistic relationship between physical activity and sleep by exploring frequency, type, and timing of exercise and their association with a variety of sleep variables (e.g., sleep onset latency, wake after sleep onset, sleep efficiency). Young adults (n = 1003) completed a variety of self-report questionnaires, including a week-long sleep diary and a survey of typical frequency, type, and timing of exercise completed in the past week. Increased frequency of physical activity was related to increased sleep efficiency (total sleep time/time in bed), dec
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31

Baecher, Moritz Niklaus. "From Digital to Physical: Computational Aspects of 3D Manufacturing." Thesis, Harvard University, 2013. http://dissertations.umi.com/gsas.harvard:11149.

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The desktop publishing revolution of the 1980s is currently repeating itself in 3D, referred to as desktop manufacturing. Online services such as Shapeways have become available, making personalized manufacturing on cutting edge additive manufacturing (AM) technologies accessible to a broad audience. Affordable desktop printers will soon take over, enabling people to fabricate<br>Engineering and Applied Sciences
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32

Pinto, J. A. "Some aspects of geometric quantization and their physical basis." Thesis, University of St Andrews, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.377329.

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33

White, Frances. "Geometrical and physical aspects of rotating neutron stars models." Thesis, University of Portsmouth, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.424210.

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34

Robson, David J. "Physical aspects of cavitation and freezing in conifer xylem." Thesis, University of Aberdeen, 1986. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU362721.

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Part I details work on cavitation, refilling and permeability of conifer xylem. Part II shows how conifers may avoid widespread cavitation during freezing of the xylem sap. PART I Cavitation was induced in sapwood samples by sealing wood in semi-permeable membranes and immersion in osmotic solutions. Emptying of up to 20-30% of the tracheids occurred for absolute pressures of between 1.0 x 105 N. m-2and -4 x 105 N m-2but very little further emptying occurred when the pressure was lowered to -9 x 105 N m-2. The limit of emptying found for this range of pressures indicates that one type of trach
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35

Yang, Lin. "Physical activity in adults : investigating the contribution of active travel." Thesis, University of Cambridge, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.610782.

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36

Figaji, Tamara Ann. "Impact of a lifestyle physical activity intervention on school going children's physical activity participation." Thesis, University of the Western Cape, 2009. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_6968_1297753030.

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<p>Associated with physical inactivity and obesity are numerous other health risks which have become a major health concern. A steady decrease in the levels of physical activity during childhood and adolescents have been noted in various parts of the world. The picture of low physical activity levels in developed countries is no different in developing countries. Children spend the majority of their day at school therefore a school setting is ideal to conduct physical activity intervention studies The primary aim of this study was to measure the effect of an intervention programme on the physi
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37

Nieuwenhuyzen, Mark. "Crystal engineering and polymorphism : aspects of hydrogen bonding." Thesis, Queen's University Belfast, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301029.

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38

Jackson, Philip Stephen. "Mechanistic aspects of olefin sulphonation by sulphur trioxide." Thesis, University of Liverpool, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.314552.

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39

Curtis, Andrew Crawford. "Aspects of the chemistry of some colloidal metals." Thesis, University of Cambridge, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.315754.

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40

Kain, Lorie L. "Physical activity levels and perceived benefits and barriers to physical activity among honors students." Virtual Press, 1997. http://liblink.bsu.edu/uhtbin/catkey/1061876.

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The problem_ of the study was to compare honors college students with non-honors students on physical activity levels, perceived benefits of physical activity, and perceived barriers to physical activity. Two measures were selected to test the hypotheses and were combined into one questionnaire. A purposive sample of 500 students from Honors College classes and Health Science classes were given the questionnaire to complete during class. Multiple Analysis of variance (MANOVA), univariate f-tests following significant MANOVA's, and a t-test analysis were used to test the hypotheses.Results of t
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41

Artale, Lisa M. "The effects of physical activity on aging : a longitudinal analysis." Virtual Press, 1998. http://liblink.bsu.edu/uhtbin/catkey/1115727.

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The purpose of this study was to examine the participants of the Ball State University Retirees Fitness (BSURF) program in order to determine the role that habitual participation in an exercise program plays on the aging process. The participants of the BSURF program were divided into two groups: those that have been exercising for seven or more years (LT; n=14), and those that have been exercising for six years or less (ST; n=10). Subjects underwent testing on the following variables: BMI, body composition, resting heart rate and blood pressure, blood lipid profile, biceps muscular strength,
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42

Wandt, Michael Alexander Erich. "Scientific aspects of urolithiasis : quantitative stone analyses and crystallization experiments." Doctoral thesis, University of Cape Town, 1986. http://hdl.handle.net/11427/17041.

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Bibliography : pages 211-267.<br>This thesis describes two aspects of the various scientific approaches to the study of urolithiasis. In the first instance, the theory, development and results of three quantitative analytical procedures are described while in the second, crystallization experiments in a rotary evaporator are presented. Of the different methods of quantitative X-ray powder diffraction analyses, the 'internal standard method' and a microanalytical technique were identified as being potentially the two most useful procedures for the quantitative analysis of urinary calculi. 'Refe
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43

Keegan, Michael Bernard Thomas. "Supported metal catalysts : some aspects of characterisation and function." Thesis, University of Hull, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.384806.

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44

Smits, Teika Marija. "EPR spectroscopic and synthetic aspects of thiyl radical chemistry." Thesis, University College London (University of London), 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.272278.

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45

Wood, David John Dudley. "Some aspects of the high-speed electrodeposition of metals." Thesis, Loughborough University, 1988. https://dspace.lboro.ac.uk/2134/25905.

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The literature concerning the fast electrodeposition of metals has been reviewed with particular attention to the electrodeposition of nickel. A study of the electrodeposition of nickel has been carried out in concentrated Ni sulphamate solutions at 50-70°C in parallel plate cells at Reynolds numbers of up to 15,000. The cell design was substantiated by a preliminary study of the electrodeposition of copper. Additional studies have been made of current distribution in both the nickel and acid copper systems using segmented electrodes. Additional studies of mass transport have been made in the
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46

Park, Saengryeol. "Physical activity and sedentary behaviour in older adults : associations with physical and mental health." Thesis, University of Birmingham, 2017. http://etheses.bham.ac.uk//id/eprint/7441/.

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With an increasing ageing population, it is important to explore factors that can contribute to healthy ageing. Physical activity (PA) and sedentary behaviour (SB) are associated with psychological and physical health in older adults. This thesis therefore aims to explore the associations between PA as well as SB and a range of health, motivational, environmental factors in older adults from assisted living facilities (ALFs) and community settings using various methodological approaches. Study 1 used latent profile analyses to group people based on PA, SB, and physical function in resident of
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47

Walters, Derek A. "Intrinsic motivation in sport and physical activity." Thesis, Kansas State University, 1986. http://hdl.handle.net/2097/9979.

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48

Darmadi-Blackberry, Irene 1972. "Survival amongst longevity cultures : social, physical activity and nutritional determinants." Monash University, Monash Asia Institute, 2001. http://arrow.monash.edu.au/hdl/1959.1/9220.

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49

Harrison, Willie K. "Physical-layer security: practical aspects of channel coding and cryptography." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/44818.

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In this work, a multilayer security solution for digital communication systems is provided by considering the joint effects of physical-layer security channel codes with application-layer cryptography. We address two problems: first, the cryptanalysis of error-prone ciphertext; second, the design of a practical physical-layer security coding scheme. To our knowledge, the cryptographic attack model of the noisy-ciphertext attack is a novel concept. The more traditional assumption that the attacker has the ciphertext is generally assumed when performing cryptanalysis. However, with the ever-incr
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50

Barker, Campbell Preston. "Physical and chemical aspects of A10x/PET gas barrier composites." Thesis, Durham University, 1994. http://etheses.dur.ac.uk/5818/.

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