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Dissertations / Theses on the topic 'Shot sleeve'

Author: Grafiati

Published: 4 June 2021

Last updated: 27 July 2025

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1

Mao, Haijing. "A numerical study of externally solidified products in the cold chamber die casting process." Connect to this title online, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1095790853.

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Thesis (Ph. D.)--Ohio State University, 2004.<br>Title from first page of PDF file. Document formatted into pages; contains xvi, 162 p.; also includes graphics. Includes bibliographical references (p. 158-162).

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Shi, Qi. "PREDICTION OF THERMAL DISTORTION AND THERMAL FATIGUE IN SHOT SLEEVES." The Ohio State University, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=osu1034967167.

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Park, Yong Kuk. "Analysis of Mechanical Failure Mechanisms and Methodology for Robust Design of Horizontal Pressure Die Casting Shot Sleeves /." The Ohio State University, 1995. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487931512617216.

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4

Jones, Caroline Helen Dorothy. "Exploring the short-sleep obesity association in young children." Thesis, Durham University, 2011. http://etheses.dur.ac.uk/856/.

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There is strong and consistent epidemiological evidence that short sleep duration is associated with increased risk of obesity from early childhood. Childhood obesity and inadequate sleep have negative consequences for health and well-being, and the ability to target both of these public health concerns with a novel obesity intervention involving sleep extension is appealing; yet little is known about the mechanisms linking short sleep with obesity. In adults, hormonal mechanisms have been proposed; in young children, behavioural mechanisms and parenting are likely to be involved. Furthermore,

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Aeschbach, Daniel. "Dynamics of the human sleep electroencephalogram : effects of hypnotics, sleep deprivation, and habitual sleep length /." [S.l.] : [s.n.], 1995. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=11177.

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6

Godfrey, Alison G. "Optimizing daytime short sleep episodes to maximize performance in a stressful environment." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2006. http://library.nps.navy.mil/uhtbin/hyperion/06Sep%5FGodfrey.pdf.

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Thesis (M.S. in Operations Research)--Naval Postgraduate School, September 2006.<br>Thesis Advisor(s): Nita Lewis Miller. "September 2006." Includes bibliographical references (p. 67-83). Also available in print.

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Werth, Esther. "Human Sleep: Homeostatic regulation and topographic differences of the sleep electroencephalogram /." Zürich, 1997. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=12326.

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8

Uddin, Ayesha. "Effect of Sleep on Vigilance, Short-Term Memory, and Learning in College Students." ScholarWorks, 2015. https://scholarworks.waldenu.edu/dissertations/1755.

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Despite years of research supporting a link between sleep and cognitive functioning, little research has focused on the effect of sleep on cognitive factors in the college population. According to the trace reactivation hypothesis, sleep plays a crucial role in memory consolidation and learning. Cognitivism further indicates that the processing of information is limited when sleep is restricted. The purpose of this quantitative study was to examine the effect of sleep on vigilance, short-term memory, and learning; an additional goal was to test whether these variables influence grade point ave

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Sam, Kim. "Short term effects of an oral appliance in the treatment of mild to moderate Obstructive Sleep Apnea in Chinese subjects." Hong Kong : University of Hong Kong, 1999. http://sunzi.lib.hku.hk/hkuto/record.jsp?B21879278.

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10

Wimmer, Frank L. (Frank Lee) Carleton University Dissertation Psychology. "The effects of short-term total sleep deprivation on cognitive performance in human subjects." Ottawa, 1990.

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11

Yang, Qiao. "The effects of acute and short-term continuous positive airway pressure treatment withdrawal on sleep and neurobehavioural function in patients with obstructive sleep apnea." Thesis, The University of Sydney, 2007. https://hdl.handle.net/2123/28138.

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This study systematically examined the changes in sleep parameters, neurobehavioural performance and markers of objective and subjective sleepiness after an acute (one night) and short-term (seven nights) period of withdrawal from Continuous Positive Airway Pressure (CPAP) treatment in patients with obstructive sleep apnea (OSA). The effects of one night of CPAP reintroduction immediately following CPAP withdrawal on these parameters were also investigated. CPAP treatment can effectively eliminate upper airway obstruction at night but patients frequently withdraw from CPAP therapy for

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Dvořák, Pavel. "Studie sanace vybrané části stokové sítě." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2020. http://www.nusl.cz/ntk/nusl-409696.

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The topic of this thesis is to create a study of the rehabilitation of the sewer network. The sewer system under assessment is located in city Znojmo, specifically Znojmo – city. In this case, rehabilitation is proposed in order to improve the functional operational properties of the sewer network and extend its service life. The work was divided into two basic parts, namely the Accompanying and Summary Technical Report. Three variants of solution were proposed. The first two variants are made as trenchless using a sanitation sleeve in the first one and a short sanitation sleeve in combination

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Schuderer, Jürgen Rudolf. "EMF risk assessment: "in vitro" research and sleep studies /." Zürich, 2004. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=15347.

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Muller, Karen. "The Legend of Sleepy Hollow the creative challenges of lighting a small show in a large venue /." Morgantown, W. Va. : [West Virginia University Libraries], 2009. http://hdl.handle.net/10450/10223.

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Thesis (M.F.A.)--West Virginia University, 2009.<br>Title from document title page. Document formatted into pages; contains v, 66 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 42).

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15

Cajochen, Christian Lorenz Anton. "Heart rate, submental EMG and core body temperature in relation to EEG slow-wave activity during human sleep : effect of light exposure and sleep deprivation /." [S.l.] : [s.n.], 1993. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=10384.

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DAVIS-SHARTS, JEAN ELIZABETH. "THE EFFECTS OF A SHORT-ACTING BENZODIAZEPINE, TRIAZOLAM, ON AROUSALS, BODY MOVEMENTS, AND QUALITY OF SLEEP IN POSTMENOPAUSAL FEMALES." Diss., The University of Arizona, 1987. http://hdl.handle.net/10150/184111.

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The purpose of this study was to determine the effects of triazolam, a short-acting benzodiazepine, on nocturnal arousals, body movements, and quality of sleep in healthy, postmenopausal females. A double-blind control by constancy cross-over design was employed. Twelve subjects were randomly assigned to the sequence paradigm placebo, drug, placebo, drug or to the sequence paradigm drug, placebo, drug, placebo. Each subject slept for six nights in a sleep laboratory that was specifically designed to decrease the artificiality of the laboratory setting. EEG, EOG, and EMG measurements were recor

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Sam, Kim, and 岑儉. "Short term effects of an oral appliance in the treatment of mild to moderate Obstructive Sleep Apnea in Chinese subjects." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1999. http://hub.hku.hk/bib/B31973036.

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18

Axelsson, John. "Long shifts, short rests and vulnerability to shift work." Doctoral thesis, Stockholm : Department of Psychology, Stockholm University, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-453.

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Vaško, Michal. "Podnikatelský záměr." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2010. http://www.nusl.cz/ntk/nusl-222441.

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This Master´s thesis is concerned with creation of business plan for establishing an internet portal for easy launch of internet shops including thein follow-up administration. Thesis contains market analysis, competition analysis, the process of establishing such portal and sequential maintenance.

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Geissler, Eva. "Adenosine A₁ receptors in human sleep regulation studied by electroencephalography (EEG) and positron emission tomography (PET) /." Zürich : ETH, 2007. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=17227.

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21

Yan, Ran. "Does Fibre-fix provided to people with irritable bowel syndrome who are consuming a low FODMAP diet improve their gut health, gut microbiome, sleep and mental health?" Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2023. https://ro.ecu.edu.au/theses/2660.

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Irritable Bowel Syndrome (IBS) is the most common functional gastrointestinal disorder, affecting 4% of the global population. Despite its effects in symptom alleviation, a diet low in fermentable oligo, di, monosaccharides, and polyols (FODMAP), has been shown to have negative impacts on gut microbiota. This randomised double-blind placebo-control study aimed to examine whether Fibre-fix, a mix of dietary fibres, added to an existing low FODMAP diet, can improve gut health, gut microbiota, sleep, mental health and quality of life in IBS patients without causing exacerbation of symptoms. Adult

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Larsson, Robin, and Christian Skålberg. "Fysisk aktivitet och kognitiv funktion hos personer med övervikt och obstruktiv sömnapné – en sambandsanalys." Thesis, Uppsala universitet, Åsenlöf: Fysioterapi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-402491.

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Bakgrund: Obstruktiv sömnapné (OSA) är en sjukdom med återkommande andningsuppehåll i de övre luftvägarna till följd av delvis eller total tilltäppning av luftflödet vid sömn, vilket leder till en lägre syremättnad i blodet. Det är känt att OSA försämrar kognitiva funktioner såsom minne och inlärning. Det saknas evidens om samband mellan kognitiv funktion, grad av symptom och fysisk aktivitetsnivå. Syfte: Att beskriva kognitiv funktion hos en grupp patienter med övervikt och OSA. Undersöka samband mellan kognitiv funktion (korttidsminne) och fysisk aktivitet på moderat till hög intensitet (M

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23

Edwards, Margaret Ellenor. "Confidence in initiation of breastfeeding." Thesis, University of Stirling, 2013. http://hdl.handle.net/1893/21014.

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Background: Breastfeeding confers health and social benefits on both mother and baby and is thus a key global public health priority, with exclusive breastfeeding for the first six months recommended. A variety of factors can influence a woman’s decision to initiate breastfeeding but a short duration of breastfeeding appears to be common in developed countries. In the UK, promotion of breastfeeding has been government policy since 1974 and gradually the incidence has increased. In Scotland in 2010 the incidence was 74% but by one week 17% of women had given up. A minority of women find that th

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24

Détrait, Maximin. "Impact de l'activité sympathique dans l'aggravation de la cardiopathie ischémique causée par l'hypoxie intermittente Intermittent Hypoxia Triggers Early Cardiac Remodeling and Contractile Dysfunction in the Time‐Course of Ischemic Cardiomyopathy in Rats Short‐term Intermittent Hypoxia Induces Simultaneous Systemic Insulin Resistance and Higher Cardiac Contractility in Lean Mice." Thesis, Université Grenoble Alpes, 2020. https://thares.univ-grenoble-alpes.fr/2020GRALV035.pdf.

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L’association d’un trouble respiratoire au cours du sommeil (TRS) chez des patients présentant une cardiopathie ischémique est un facteur de mauvais pronostic. Au cours des TRS, les patients souffrent d’épisodes de désaturation-resaturation aussi appelés hypoxie intermittente (HI) et décrite comme l’une des caractéristiques des TRS la plus délétère sur le système cardiovasculaire. Les mécanismes induits par l’HI et responsables des complications cardiovasculaires ne sont pas totalement explicités et nécessitent d’être affinés afin de proposer de nouvelles stratégies thérapeutiques. Aujourd’hui

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25

Maillard, Angéline. "Atteintes cognitives et cérébrales dans le trouble de l'usage d'alcool et le syndrome de Korsakoff : valeur pronostique, évolution et prise en charge Prognosis factors of low-risk drinking and relapse in alcohol use disorder : a multimodal analysis Short-term neuropsychological recovery in alcohol use disorder : a retrospective clinical study Is there cognitive and brain changes over time in Korsakoff's syndrome ? Neuropsychological deficits in alcohol use disorder : impact on treatmen The effect of alcohol withdrawal syndrome severity on sleep, brain and cognition." Thesis, Normandie, 2020. http://www.theses.fr/2020NORMC017.

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Le trouble de l’usage d’alcool (TUAL) est associé à des atteintes cérébrales et cognitives. Ces altérations empêchent les patients de bénéficier des prises en charges psychosociales et augmentent le risque de rechute. Une réversibilité de ces atteintes est possible avec l’abstinence et a été mise en évidence dans le TUAL. En revanche, les patients présentant un syndrome de Korsakoff (SK) ont une amnésie antérograde sévère qui est considérée comme irréversible, même si l’évolution cognitive et cérébrale de ces patients est peu documentée. L’objectif de cette thèse est donc d’étudier la valeur p

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Muriithi, Paul Mutuanyingi. "A case for memory enhancement : ethical, social, legal, and policy implications for enhancing the memory." Thesis, University of Manchester, 2014. https://www.research.manchester.ac.uk/portal/en/theses/a-case-for-memory-enhancement-ethical-social-legal-and-policy-implications-for-enhancing-the-memory(bf11d09d-6326-49d2-8ef3-a40340471acf).html.

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The desire to enhance and make ourselves better is not a new one and it has continued to intrigue throughout the ages. Individuals have continued to seek ways to improve and enhance their well-being for example through nutrition, physical exercise, education and so on. Crucial to this improvement of their well-being is improving their ability to remember. Hence, people interested in improving their well-being, are often interested in memory as well. The rationale being that memory is crucial to our well-being. The desire to improve one’s memory then is almost certainly as old as the desire to

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27

Chang, You-Chung, and 張又中. "Study the Effect of Slow Shot Profile on the Air Entrapment of Melt Flow inside the Shot Sleeve in Die Casting Processes." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/01156939390755390268.

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碩士<br>國立臺灣海洋大學<br>機械與機電工程學系<br>95<br>Abstract In cold chamber die casting processes, metal melt flow may induce air entrapment inside the shot sleeve and influence quality of castings as the slow shot velocity profile setting improperly on the filling process. Therefore, effectively selecting the slow shot velocity to reduce possible air entrapment inside the sleeve during initial filling is one of the targets to be reached for die casters. In this study, the first issue was to derive a proper critical value of slow shot speed in terms of process parameters, such as sleeve diameter and filling

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Lin, Yi-Hung, and 林意鴻. "Study the Effect of Die-Casting Parameters on Melt Flow Behavior inside a Shot Sleeve." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/90634366239509352404.

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碩士<br>國立臺灣海洋大學<br>機械與輪機工程學系<br>92<br>Die-casting, which is a kind of near-net/or net shape manufacture, is able to mass production. At the beginning, the molten alloy is poured into a shot sleeve and is pushed into a cavity by plunger. If there is mount of air inside the mold-cavity, that may cause failure of filling in castings like gas porosity during filling process, which has an adverse effect on the mechanical properties of the castings. To avoid that, adding vents in mold design is used to prompt air escapement or enclosing a vacuum to decrease air content in the mold, before filling the

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Pereira, Tânia Isabel Santos. "Short sleep duration and circadian rhythms: association with suicidal behaviour." Master's thesis, 2017. https://hdl.handle.net/10216/104930.

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Pereira, Tânia Isabel Santos. "Short sleep duration and circadian rhythms: association with suicidal behaviour." Dissertação, 2017. https://repositorio-aberto.up.pt/handle/10216/104930.

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31

FANG, YUAN-CHIH, and 方元志. "Short Circulation Sleep Comfort Strategy Applied to Split-Type Air Conditioner." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/2bvxx5.

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碩士<br>國立臺北科技大學<br>能源與冷凍空調工程系<br>107<br>The development of the air-conditioning industry has made peoples demand for air-conditioners increasingly higher. While pursuing air-conditioning and energy-saving, air-conditioning is also negligible for peoples comfort. One of the main reasons for the impact of air-conditioning on human comfort is to enhance peoples Comfort during sleep, sleep time accounts for about one-third of the day, improving comfort during sleep can effectively improve peoples quality of life. This study uses external equipment for short-circuiting of air conditioners, using the

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Saleh, DONNA. "Interrelationships among sedentary behaviour, short sleep and the metabolic syndrome in adults." Thesis, 2013. http://hdl.handle.net/1974/8439.

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Background: Sedentary behaviour is waking activity in a seated or reclined position that involves little energy expenditure. It is gaining attention as an important cardiometabolic risk factor, independent of physical activity. Studies assessing the relationship between sedentary behaviour and cardiometabolic risk have not accounted for sleep duration as a potential covariate, although there is evidence that sleep duration may be related to both sedentary behaviour and cardiometabolic risk. Objectives: To examine the associations between sleep duration and sedentary behaviour in adults, and de

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Chen, Jinya. "Effects of short-term sleep restriction on energy balance in healthy young adults." 2011. http://hdl.handle.net/1993/4497.

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Insufficient sleep may be associated with obesity via increased energy intake and/or decreased energy expenditure. The present study therefore aimed to investigate effects of sleep restriction on energy balance in healthy young adults. Participants (14 men, 13 women) aged 35.3 ± 1.0 y with 23.6 ± 0.2 kg/m2 BMI completed a randomized, crossover study exposed to short and habitual sleep with 4 wk washout. Controlled diets were provided during the first 4 d, followed by 2 d of ad libitum eating. Ad libitum energy intake, energy expenditure and physical activity level were determined as well as en

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Chalmers, Bernard Malcom. "The role of the hippocampus in REM sleep and short-term memory in rats." Thesis, 2015. http://hdl.handle.net/10539/16498.

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"Habitual short and long sleeper in middle-aged Hong Kong Chinese: epidemiological, clinical, and polysomnographic study." Thesis, 2005. http://library.cuhk.edu.hk/record=b6073999.

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Background. Habitual short (HSS) and long sleeper (HLS) were very interesting but under-research area.<br>Conclusion. Our study suggested that sleep duration of human being has marked inter-individual variability with existence of extreme sleepers at both ends. Throughout different phases of the study, there was a consistent negative relationship between sleep duration and socio-economic status. Our finding of unique personality profile between short and long sleepers supported the hypothesis that different personality trait (neuroticism trait) might mediate between sleep duration and socioeco

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Shen, Chung-Khang, and 沈仲綱. "Inhibition of Serotonin System on Sleep Behavior Induced by Short Light-Dark Cyclein Albino Rats." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/36065464768546889478.

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碩士<br>國立中正大學<br>心理學研究所<br>88<br>Serotonin is actively involved in sleep regulation. Lesions in the raphe nuclei, where the most serotoninergic cells of the brain are located, result in a total loss in paradoxical sleep（PS）and a great reduction in non-rapid-eye-movement（NREM）sleep. Light is a powerful modulator of both biological rhythm and sleep-waking state. Increases and decreases in PS in the dark and light period, respectively, have been observed in albino rats exposed to short light-dark cycles（LD）. Para-chlorophenylalanine（ PCPA）, an inhibitor of serotonin synthesis, induces insomnia in

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Hsiao, Fan-Ci, and 蕭帆琦. "Effects of short light-dark cycles on sleep and waking in albino mice with retinal degeneration." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/86250340891932258348.

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碩士<br>國立中正大學<br>心理學所<br>96<br>Short light-dark cycles (LDc) have been found to enhance paradoxical sleep (PS) in albino rats and the eyes are necessary for the PS enhancement effect. This study is aimed at clarifying whether short light-dark cycles enhance PS in albino mice and whether it is the rod/cone or the melanopsin photoreceptive system that is responsible for the PS enhancement effect. Four male adult CD-1(ICR) mice and eight male adult FVB/NJNarl mice that have developed retinal degeneration (rd/rd) after maturity, were implanted with electrodes for standard electrophysiological recor

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Liu, Yan-Zhen, and 劉晏禎. "Short-term Sleep Deprivation Enhances Spatial Learning in the Morris Water Maze in Male Adult Rats." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/30617573866206871017.

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碩士<br>國立臺灣大學<br>生理學研究所<br>97<br>Several studies have shown that sleep deprivation (SD) of relatively long duration impaired hippocampal-dependent learning and neurogenesis in the hippocampal dentate gyrus (DG) of adult male rats. However, effects of the short-term SD on learning and neurogenesis were controversy and still not clear. The aim of the present study was to determine the effects of short-term SD for 12 h on spatial learning in young adult Long-Evans rats, using handling and small platform as models for SD, and leaving animals undisturbed in home cages as controls. During 12

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Parker, Clarissa Carlin. "Genetic analysis of ethanol sensitivity, anxiety-like behavior, and the HPA axis in the inbred long-sleep, inbred short-sleep, and LXS recombinant inbred panel of mice." Thesis, 2009. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3354546.

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Benjamin, Daniela. "The effect of the short term use of Zolpidem MR on poor sleep, daily pain and depression in arthritis patients." Thesis, 2015. http://hdl.handle.net/10539/17443.

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A dissertation submitted to the Faculty of Health Science, University of the Witwatersrand, Johannesburg, in fulfillment of the requirements for the degree of Master of Science in medicine. Johannesburg 2014<br>Introduction: The presence of pain during sleep causes patients with chronic daily pain, such as in Rheumatoid and Osteoarthritis, to experience insomnia, fragmented sleep and an increased number of night-time awakenings. This poor sleep results in an increased sensitivity to pain during the day. The effect of improving sleep on pain, sleep and mood after taking Zolpidem MR was the aim

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Liao, Yi-Han, and 廖羿涵. "Effects of Short Light-Dark Cycles on Sleep and Wakefulness in Albino Mice after Destructing Melanopsin-Expressing Retinal Ganglion Cells." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/84437359927506773159.

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博士<br>國立中正大學<br>心理學研究所<br>103<br>The dark and light periods of short light-dark cycles (LDc) respectively enhance and inhibit paradoxical sleep (PS) in albino rats and mice. Since the retinally degenerated FVB mice maintain the distribution pattern of PS in short LDc, the rod-cone photoreceptors appear not to be essential in mediating the photic influence on sleep. The melanopsin-expressing intrinsically photosensitive retinal ganglion cells (ipRGCs) might be the ones responsible for the remaining light-responsive sleep patterns. We used immunotoxin to selectively destruct ipRGCs of one eyebal

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Pai, Fang-Yu, and 白芳瑜. "Objective measures of sleep problems in subacute stroke inpatients independently associated with admission levels and short-term improvements of daily living activities." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/33414128549761323438.

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碩士<br>中山醫學大學<br>醫學資訊學系碩士班<br>104<br>Background and Purpose—While prevalent sleep-disordered-breathing (SDB) and sleep disturbances found in subacute stroke patients, scarce researches with objectivemeasures of these two sleep problemstogether were found relating to activities of daily living (ADL) levels. We investigated that objective polysomnographic measures of SDB and sleep disturbance are correlated to ADL outcome over inpatients’stroke rehabilitation programs. Methods—123 eligible subjects were retrospectively enrolled with data of socio-demography, medical comorbidities, stroke characte

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Michielli, Nicola. "Analysis of Signal Decomposition and Stain Separation methods for biomedical applications." Doctoral thesis, 2021. http://hdl.handle.net/2318/1783498.

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Nowadays, the biomedical signal processing and classification and medical image interpretation play an essential role in the detection and diagnosis of several human diseases. The problem of high variability and heterogeneity of information, which is extracted from digital data, can be addressed with signal decomposition and stain separation techniques which can be useful approaches to highlight hidden patterns or rhythms in biological signals and specific cellular structures in histological color images, respectively. This thesis work can be divided into two macro-sections. In the first part

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Michielli, Nicola. "Analysis of Signal Decomposition and Stain Separation methods for biomedical applications." Doctoral thesis, 2021. http://hdl.handle.net/11583/2888374.

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Nowadays, the biomedical signal processing and classification and medical image interpretation play an essential role in the detection and diagnosis of several human diseases. The problem of high variability and heterogeneity of information, which is extracted from digital data, can be addressed with signal decomposition and stain separation techniques which can be useful approaches to highlight hidden patterns or rhythms in biological signals and specific cellular structures in histological color images, respectively. This thesis work can be divided into two macro-sections. In the first part

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