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Rozprawy doktorskie na temat „Heat Physiological effect”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 28 lipca 2024

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1

Martin, David E. "The effect of heat stress on excess post exercise oxygen consumption." Virtual Press, 1992. http://liblink.bsu.edu/uhtbin/catkey/834623.

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While a great deal of research has been directed towards the phenomena of excess post exercise oxygen consumption (EPOC), the effect of thermal stress on EPOC is not well defined. To assess the effect of heat stress on EPOC, seven healthy, active subjects (4 female, 3 male; 23.9 ± 2.0 years of age) performed 4 trials: one control (quiet rest) and one exercise (45 minutes of cycling at 65% VO2max workload) trial in moderate (23° C, 50% humidity) and hot (35° C, 50% humidity) environments. Oxygen consumption (V02), heart rate (HR) and rectal temperature (RT) were assessed pre, during and post co

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2

Houmard, Joseph A. "Rate of heat acclimation : effects of exercise intensity and duration." Virtual Press, 1988. http://liblink.bsu.edu/uhtbin/catkey/533882.

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Hogan, Kyla B. "The hemostatic responses to exercise in hot and cold temperatures." Virtual Press, 2008. http://liblink.bsu.edu/uhtbin/catkey/1398717.

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Purpose: The impact of temperature on the coagulative response to exercise has not been well described. The purpose of this study was to assess the response of plasma thrombin-antithrombin (TAT) to exercise during exposure to both hot and cold temperatures, and to compare those responses to exercise under normal, temperate conditions. Methods: Fifteen healthy male subjects (25.3 + 4.3 years) volunteered to participate in this study. Subjects completed maximal cycle ergometer exercise tests in three different temperatures (20°C, 5° or 8° C, and 30°C) in an environmental chamber. All tests were

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4

Davis, Jacqueline A. "The hypertensive response to repeated days of heat-exercise exposure." Virtual Press, 1989. http://liblink.bsu.edu/uhtbin/catkey/562777.

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The physiological responses of hypertensive subjects to a single bout of exercise in a hot environment have been investigated. It was the purpose of this study to compare the effect of successive days of exercise in the heat on borderline hypertensive and normotensive individuals, with particular interest being paid to the positive relationship that exists between plasma volume and blood pressure. Eight hypertensive subjects (HT) and 8 normotensive controls (NT) performed a standardized work task, (walking for 60 minutes at 3.5 mph on a 5% grade), in dry heat, (40C, 257. RH), on 7 successive d

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Kerr, Chadwick G. "Hypothermia during Olympic triathlon : influence of body heat storage during the swimming stage." Virtual Press, 1996. http://liblink.bsu.edu/uhtbin/catkey/1014852.

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The purpose of this study was to determine if mild heat stress induced by wearing a wet suit while swimming in relatively warm water (25.4 ± 0.1°C) increases the risk of heat injury during the subsequent cycling and running stages. Specificlly, during an Olympic distance triathlon in a hot and humid environment (32°C & 65% RH). Five male triathletes randomly completed two simulated triathlons (Swim=30 min; Bike=40 km; Run=10 km) in the laboratory using a swimming flume, cycle ergometer, and running treadmill. In both trials, all conditions were identical, except for the swimming portion in whi

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6

Arjona, Anibal Augusto. "Molecular responses of neonatally heat stressed broilers exposed to acute heat stress." Diss., Virginia Tech, 1991. http://hdl.handle.net/10919/39965.

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Exposure of broiler cockerels to between 35.0 to 37.8 C for 24 hr at 5 days of age increases their survival when exposed to a heat challenge at 6 weeks of age (35.0-37.8 C; RH 50% ). This' phenomenon does not resemble acclimation since the physiological changes known to occur in acclimated birds exposed to heat have not been observed in the neonatally stressed birds. A series of experiments were conducted to elucidate the mechanisms of neonatally induced thermotolerance. In Experiment 1, the erythrocyte protein profile of control and 5 days heated birds prior to and during exposure to acute he

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7

Heyns, Gerhardus Johannes. "Influence of macro- versus microcooling on the physiological and psychological performance of the human operator." Thesis, Rhodes University, 1995. http://hdl.handle.net/10962/d1016247.

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This study evaluated the effect of a macro- versus a microcooling system on the cognitive, psychomotor and physiological performance of human operators. Male subjects (n = 24) were acclimatized for four days and then subjected to three different environmental conditions: hot ambient (40°C; 40% RH), microcooling and macrocooling. Each environmental condition was repeated twice; once under a rest condition and once while simulating a physical workload of 40 W. Four performance tests (reasoning, eye-hand coordination, memory, reaction time) were conducted once every hour for four hours. Five phys

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8

WIDELITZ, RANDALL BRUCE. "HEAT SHOCK PROTEIN SYNTHESIS AND THERMOTOLERANCE EXPRESSION IN RAT EMBRYONIC FIBROBLASTS (HYPERTHERMIA, GENE REGULATION)." Diss., The University of Arizona, 1986. http://hdl.handle.net/10150/183851.

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In response to a variety of hyperthermic treatments, rat embryonic fibroblasts synthesize heat shock proteins (hsps), including those with molecular weights of 68,000 (hsp 68), 70,000 (hsp 70) and 89,000 (hsp 89). Hyperthermic stresses, which produce the hsps, also cause expression of thermotolerance. The dependence of thermotolerance expression on hsp synthesis was investigated in this mammalian cell line under different heating conditions. Temperature shift experiments showed that hsp synthesis and thermotolerance expression were dependent not only on the absolute hyperthermic temperature, b

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9

Martin, Andrew. "Measurement of heat strain in firefighters." Thesis, Queensland University of Technology, 1990. https://eprints.qut.edu.au/35956/1/35956_Martin_1990.pdf.

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A comparative study of six different fire-fighting clothing ensembles to determine the heat stress imposed on the wearer was conducted. Physiological indicators of heat strain were monitored while subjects performed set tasks for up to 30 minutes in controlled environments. The differences between ensembles was considered. For each ensemble, six subjects performed set tasks in two controlled environments for 30 minutes or until one of a set of termination criteria was met. In the first environment subjects stepped at a set rate in 40°C dry bulb and 60% humidity conditions. A number of weig

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10

Williams, Winifred Elizabeth. "HEAT TRANSFER IN THE MICROCIRCULATION." Thesis, The University of Arizona, 1985. http://hdl.handle.net/10150/275277.

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11

Lambert, Charles Paul. "Fluid replacement after exercise in the heat : influence of beverage carbonation and carbohydrate content." Virtual Press, 1990. http://liblink.bsu.edu/uhtbin/catkey/722187.

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This investigation evaluated the Influence of beverage carbonation and carbohydrate content on fluid replacement following exercise/thermal dehydration. Eight recreationally trained men cycled at 50% of their maximal aerobic power in a hot environment (40°C 40% relative humidity) until a body weight loss of 4.12 ± 0.02% was attained. In the subsequent four hours subjects ingested one of four randomly assigned solutions at 15 minute intervals. The total volume ingested equalled that lost during dehydration. The solutions varied in their carbohydrate and carbonation content as follows: 1) CK

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12

Morrison, Shawnda A., and n/a. "Causes and effects of cardiovascular strain in the heat." University of Otago. School of Physical Education, 2008. http://adt.otago.ac.nz./public/adt-NZDU20080404.162058.

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Passive and active heat loading causes cardiovascular strain, which can have diverse and substantial effects. Thus, cardiovascular function is integral to work and heat stress tolerance, but recent hyperthermia and exercise literature has not emphasised this relationship, instead focusing on the roles of upper �critical� core temperature or rate of heat storage as primary mechanisms of fatigue. Therefore, the aim of this thesis was to examine some potential causes and effects of cardiovascular strain under heat stress, including potential strategies for attenuating that strain. Body precooli

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13

Bolster, Douglas R. "The effects of precooling on thermoregulation during subsequent exercise in the heat." Virtual Press, 1997. http://liblink.bsu.edu/uhtbin/catkey/1041903.

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The purpose of this study was to lower body core temperature prior to a simulated portion of a triathlon (swim-15min; bike-45min) and examine whether precooling could attenuate thermal strain and increase subjective exercise tolerance in the heat. Six endurance trained triathletes (mean ± SE, 28 ± 2 yr, 8.2 ± 1.7 % body fat) completed two randomly-assigned trials, one week apart. The precooling trial (PC) involved lowering body core temperature (-0.5°C) in water prior to swimming and cycling. The control trial (CON) was identical except no precooling was performed. Water temperature and enviro

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14

Alm, David Michael. "Comparison and interaction of heat and salt stress in cultured tobacco cells." Virtual Press, 1986. http://liblink.bsu.edu/uhtbin/catkey/445616.

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Cultured tobacco cells (Nicotiana tabacum L., cv Wisconsin-38) were subjected to temporary sub-lethal heat and salt shock treatments to determine the effects of these treatments on various physiological parameters after subsequent lethal heat or salt stresses. Tobacco cells developed a tolerance to a non-permissive temperature stress (54C for 14 min) when pretreated with heat shock of 38C for 2h but not when pretreated at 42C for 2h. Cells pretreated at 38 (2h) exhibited less than 30% normal growth when the 54C stress came immediately after the 38C treatment. Tolerance to the 54C stress develo

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15

Chen, Zong-Ping. "Three-dimensional hyperthermia cancer treatment simulation." Diss., The University of Arizona, 1989. http://hdl.handle.net/10150/184852.

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A simulation program to study the three dimensional temperature distributions produced by hyperthermia in anatomically realistic inhomogeneous tissue models has been developed. The anatomical data for the inhomogeneous tissues of the human body are entered on a digitizing tablet from serial CT scans. The program not only predicts temperature distributions in regions dominated by blood perfusion (with large number of small capillaries), but it can also predict the temperatures inside of and at the vicinity of large blood vessels. The program can be used for different power deposition patterns f

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16

Johnsen, Suzanne Louise 1960. "Early embryos of dams of heat stress." Thesis, The University of Arizona, 1989. http://hdl.handle.net/10150/277034.

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Increased environmental heat causes early embryonic death before implantation. This study was designed to examine tissues of dams exposed to environmental temperatures of 36°C and to examine 72 hour old embryos from these dams. Results showed adult mice exposed to heat stress had significant changes in liver morphology with hepatocyte swelling and vacuolization of the cytoplasm, organelles in the hepatocytes were displaced next to the cell membrane. After 48 hours of recovery from heat stress, liver morphology appeared normal. Embryos from heat stressed dams had delayed development indicated b

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17

Wall, Bradley A. "Effect of exercise-induced hypohydration on body temperature and cycling time trial performance in the heat with adequate facing wind speed." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2008. https://ro.ecu.edu.au/theses/167.

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"Background: Laboratory studies have shown during prolonged exercise that 2-3% dehydration can lead to greater increases of body temperature and cardiovascular work, altered metabolic function, and impaired exercise performance, compared to when no fluid deficit occurs. However, previous studies were conducted in relatively windless environments (i.e. wind speeds

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18

Peiffer, Jeremiah J. "Short term recovery with cold water immersion following cycling in the heat." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2008. https://ro.ecu.edu.au/theses/209.

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Increases in core temperature are associated with perceptions of fatigue and reductions in physical work capacity. Following completion of a bout of exercise in the heat, cold water immersion (CWI) is sometimes used by athletes to rapidly decrease their core temperature, and may facilitate recovery. Few studies however, have examined the effects of CWI after exercise in the heat on short term recovery. In addition, whether or not performance benefits can arise from this recovery modality is equivocal. This thesis incorporates four individual studies surrounding the area of CWI recovery and one

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19

Ott-Reeves, Ellen (Ellen Theresa). "In Situ Hybridization of 70 kD Heat Shock Protein mRNA in a Rat Model of Ethanol Self-Administration." Thesis, University of North Texas, 1994. https://digital.library.unt.edu/ark:/67531/metadc332564/.

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Sucrose fading was used to initiate self-administration of ethanol on an FR4 schedule in male Fischer 344 rats. Rats showed low response rates for ethanol alone. After administration of liquid diet containing ethanol, ethanol intake increased over levels prior to administration of the liquid diet. In situ hybridization compared mRNA for the inducible or constitutive 70 kD heat shock proteins in ethanol and nonethanol rats. Both inducible and constitutive mRNAs were found in nonethanol and ethanol tissues. In peripheral organs, radiolableling was higher in ethanol tissue. In brain regions, none

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20

Hobbs, Forrest Craig. "The effects of neonatal/juvenile heat stress and varying L- tryptophan levels on growth parameters, meat quality, and brain neurotransmitter levels in turkeys." Thesis, Virginia Tech, 1989. http://hdl.handle.net/10919/46040.

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<p>A 2 x 2 x 4 factorial experiment utilizing 640 male Large White turkeys was conducted to determine the effects of neonatal/juvenile heat stress and tryptophan supplementation upon growth to 129 days of age, as well as meat quality and brain neurotransmitter levels. Treatments consisted of neonatal heat stress (36 continuous hours at 38 C) starting at 5 days of age, juvenile heat stress (8 hours a day at 38 C for 5 consecutive days) starting at 106 days of age, and tryptophan supplementation (0, .1, .2, and .3 % added to the diet) from 112 days of age to market (129 or 138 days of age)

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21

Hayamanesh, Shahnoosh. "The effect of high temperature on physiological and metabolic parameters and reproductive tissues of okra (Abelmoschus esculentus (L.) Moench)." Thesis, The University of Sydney, 2018. http://hdl.handle.net/2123/18097.

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Okra is an important summer vegetable crop and high temperature has been shown to lower its growth and yield. In this study, 119 okra genotypes were initially screened for their response to a short period of heat shock (45°C for 4h and 6h) in a controlled environment facility by assessing chlorophyll fluorescence (Fv/Fm and Fv’/Fm’), photosynthesis (A), stomatal conductance (gs) and electrolyte leakage (EL) in control and heat. Additionally, DNA of fresh green leaf of okra was isolated by a modified CTAB method with additional PVP and RNase and amplified by 8 polymorphic SSR markers to generat

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22

Al-Abry, Ghaita Suleiman Nasser. "The effect of transportation and heat as stress factors on some physiological aspects of Omani goats." Thesis, University of Nottingham, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.546463.

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Iyasere, Oluwaseun Serah. "Effect of heat and physiological stress on the growth performance, physiology and welfare of broiler chickens." Thesis, University of Newcastle upon Tyne, 2014. http://hdl.handle.net/10443/2585.

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Broilers can be faced with a several stressful conditions during their production cycle which can have implications for both growth performance and animal welfare. Animal welfare encompasses the physical and mental well-being of animals, assessed from the biological functioning and subjective experience. The aims of this thesis were i) to develop and validate non-invasive means of assessing the welfare of broilers under physiological and episodic heat stress conditions, ii) to investigate the impact of episodic heat stress, physiological stress and light wavelength on the growth performance, p

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24

Venable, Adam Steven. "Women Have Higher Skin Temperature on the Back during Treadmill Exercise in a Hot, Humid Environment." Thesis, University of North Texas, 2014. https://digital.library.unt.edu/ark:/67531/metadc794927/.

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A common measurement of body temperature during exercise in a hot, humid environment is mean skin temperature collected from 3-12 sites on the body. However, such an approach fails to demonstrate localized differences in skin temperature that are likely to exist as a function of gender. The purpose of this study was to examine potential differences in skin temperature between men and women at 17 different locations on the body. Young women (21 ± 1 y; n = 11) and men (23 ± 3; n = 10) were recruited to complete a 60-min walk/jog interval protocol in a hot (34 ± 1 °C), humid (64 ± 8%) environment

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Reynoso, Francisco J. "Modeling of near infrared laser-mediated plasmonic heating with optically tunable gold nanoparticles for thermal therapy." Thesis, Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/45966.

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Clinical hyperthermia refers to treatment of tumors by heating the lesions between 40 and 45° C. Several clinical trials have demonstrated that hyperthermia provides significant improvements in clinical outcomes for a variety of tumors, especially when combined with radiotherapy. However, its routine clinical application is still not optimal and major improvements are needed. The temperature distributions achieved are far from satisfactory and improved temperature control and monitoring are still in need of further development. The use of gold nanoparticles (GNPs) has emerged as a good method

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Miller, William Harley. "AN INTRODUCTION TO A HYPERTHERMIA PATIENT PLANNING AND PATIENT TREATMENT EVALUATION SYSTEM (NUMERICAL, CANCER)." Thesis, The University of Arizona, 1985. http://hdl.handle.net/10150/275373.

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Lee, B. "Cross acclimation : the effect of prior acute and repeated heat exposures on physiological responses and performance in acute normobaric hypoxia." Thesis, Coventry University, 2014. http://curve.coventry.ac.uk/open/items/54b8590a-13db-4ec9-a2ff-ecbfd07ad08b/1.

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The independent effects of acute heat and hypoxic stress on human physiological function and performance are relatively well documented. Although in the field these environmental stressors rarely occur in isolation the effects of combined or sequential exposure to them has not been extensively studied in humans. Animal models have however shown that acclimation to one stressor can induce ‘cross acclimation’ a positive adaptive response upon exposure to a different stressor. The three studies within this thesis were conducted in humans to assess how exposure to acute and repeated exposures to h

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Kim, Seong-Han. "The effects of heat stress on operator perceived workload in tracking." Thesis, This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-02132009-171117/.

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Zaerr, Jon Benjamin 1963. "Development and evaluation of a dynamic phantom using four independently perfused in vitro kidneys as a tool for investigating hyperthermia systems." Thesis, The University of Arizona, 1989. http://hdl.handle.net/10150/291341.

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A dynamic phantom for use in investigating hyperthermia heating systems has been designed, constructed, and tested. A computer controlled the flow rate of 80% Ethanol to each of 4 preserved in vitro canine kidneys which acted as the phantom material. The flow rates were regulated with stepper motor controlled valves and measured with flow meters by the computer. This provided a flexible system for adjusting the perfusion as desired. The system was tested with step and ramp changes in perfusion under constant power ultrasound and with a temperature controlled perfusion algorithm, all of which y

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Di, Corleto Ross, and mikewood@deakin edu au. "The Evaluation of heat stress indices using physiological comparisons in an alumina refinery in a sub-tropical climate." Deakin University, 1998. http://tux.lib.deakin.edu.au./adt-VDU/public/adt-VDU20050915.124324.

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The production of alumina involves the use of a process known as the Bayer process. This method involves the digestion of raw bauxite in sodium hydroxide at temperatures around 250°C. The resultant pregnant liquor then goes through a number of filtering and precipitation processes to obtain the aluminium oxide crystals which are then calcined to obtain the final product. The plant is situated in a sub tropical climate in Northern Australia and this combined with the hot nature of the process results in a potential for heat related illnesses to develop. When assessing a work environment for hea

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O'Sullivan, Joseph C. "The effect of diazoxide upon heat shock protein expression and physiological response to hemorrhagic shock and cerebral stroke." Download the dissertation in PDF, 2006. http://www.lrc.usuhs.mil/dissertations/pdf/O'Sullivan2006.pdf.

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Huggett, Jenny A. "The effect of chlorine, heat and physical stress on entrained plankton at Koeberg Nuclear Power Station." Master's thesis, University of Cape Town, 1988. http://hdl.handle.net/11427/17079.

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Bibliography: pages 112-138.<br>The large volume of seawater used for cooling at Koeberg Nuclear Power Station contains many planktonic organisms which are exposed to heat, chlorine and physical stress during their passage through the system. Phytoplankton biomass, measured as chlorophyll a, was reduced by an average of 55.32% due to entrainment, and productivity was decreased by 38.30% on average, mainly due to chlorination. Zooplankton mortality averaged 22.34% for all species and 30.52% for copepods, the dominant group. The copepod Paracartia africana was used in laboratory experiments desi

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Soares, André Luiz. "Análise do estresse térmico por calor na produtividade de operadores em uma fundição." Universidade Tecnológica Federal do Paraná, 2014. http://repositorio.utfpr.edu.br/jspui/handle/1/935.

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A Ergonomia busca em sua essência adaptar o trabalho ao homem, usando de diversas ferramentas para atingir este objetivo, entre elas a análise ambiental. As características do ambiente como ruído, temperatura e iluminação podem influenciar o trabalho de um funcionário, e por isso necessitam ser avaliadas para verificar o seu efeito sobre a saúde dos trabalhadores e sua capacidade de trabalho. O estresse térmico, causado por calor, é a condição onde tanto o sistema fisiológico quanto o sistema psicológico são afetados pela temperatura do ambiente em que se encontra, quando esta temperatura enco

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LAIBI, SAMI RESHAK. "EFFECT OF ENVIRONMENTAL FACTORS AND APPLIED GROWTH REGULATORS ON GROWTH, CYTOKININ PRODUCTION AND PHYSIOLOGICAL CHANGES OF PEPPERS (CAPSICUM ANNUUM L.) (ARIZONA)." Diss., The University of Arizona, 1985. http://hdl.handle.net/10150/188004.

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Pepper plants (Capsicum annuum L.) were grown in field and a greenhouse in Arizona to determine the effects of water stress, root temperature, and exogenously applied growth regulators on cytokinin production and the resulting growth. Research showed that vegetative plants were significantly higher in cytokinin activity and growth parameters than fruiting plants. Also, in root-pruned fruiting plants, cytokinin activity was less than that of intact fruiting plants. In vegetative plants, the competition between removed sinks and the rest of the shoot was reduced and, hence, more cytokinin came f

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Anhalt, Dennis Paul 1960. "MODIFICATION OF A DIAGNOSTIC ULTRASOUND UNIT'S MOVEMENT SYSTEM TO PERFORM SCANNING DURING FOCUSSED, ULTRASOUND HYPERTHERMIA." Thesis, The University of Arizona, 1986. http://hdl.handle.net/10150/275546.

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Deresz, Fermino. "Effect of different cooling systems on concentrations of certain hormones and free fatty acids at varying times during lactation of Holstein cows." Diss., The University of Arizona, 1987. http://hdl.handle.net/10150/184260.

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In experiment 1, fourteen cows were blocked for milk yields and balanced for days in lactation. Treatments were: (1) Air conditioning (AC), five cows; (2) Evaporative cooling (EC), four cows; and (3) Conventional shade (S), five cows. Sequential samples were taken for 8 h at 12 min intervals starting at 2200 and then at hourly intervals for 13 h. Serum was assayed for insulin, thyroxine (T4), triiodothyronine (T3) and cortisol using a double-antibody radioimmunoassay procedure. Free fatty acids (FFA) were determined in serum by an enzymatic method. In experiment 2, ten cows were blocked for mi

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37

Yaeram, Jakrit. "The effect of whole body heating on testis morphology and fertility of male mice." Title page, table of contents and summary only, 2002. http://web4.library.adelaide.edu.au/theses/09PH/09phj259.pdf.

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Higginbotham, Gerald Ernest. "Influence of protein level and degradability on performance of lactating cows during hot and cool environmental temperatures." Diss., The University of Arizona, 1987. http://hdl.handle.net/10150/184265.

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One hundred and twenty lactating Holstein cows in mid-lactation were offered diets varying in protein level and degradability at two locations during hot and moderate weather. Treatments were: (1) High protein (19%), high degradability (65%); (2) High protein (19%), medium degradability (40%); (3) Medium protein (15.5%), high degradability (65%); (4) Medium protein (15.5%), medium degradability (40%). Diets were individually fed during hot weather at the University of Arizona Dairy Farm and contained 38.4% alfalfa hay, 12.4% cottonseed hulls, 9.8% whole cottonseed, and 39.4% concentrate (dry m

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Blood, Alan Physics Faculty of Science UNSW. "Biological effects of GSM mobile phone microwave radiation: an investigation of gene expression." Awarded by:University of New South Wales. School of Physics, 2005. http://handle.unsw.edu.au/1959.4/22071.

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There is evidence that athermal radiofrequency radiation can alter Heat Shock Protein (HSP) expression or protein phosphorylation, or alter MAP kinase signalling. Effects of long-term exposure in brain tissue due to repeated HSP perturbation (eg an inhibition of apoptosis) have been hypothesised (French et al, 2001). This study aimed to investigate the RNA expression profile (12,000 genes) and HSP family protein expression levels after either acute 1-hour or chronic 4-day intermittent exposures to simulated GSM radiation in a human primary fibroblast model. The results found minimal or no effe

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40

Kessler, Jeffrey C. (Jeffrey Charles). "Physiological Effects of Monetary Consequences." Thesis, University of North Texas, 1998. https://digital.library.unt.edu/ark:/67531/metadc278141/.

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Electrodermal responding (EDR) and heart rate (HR) were assessed for seven subjects participating in a reaction time task consequated with monetary bonuses (250, 100, and 10), monetary penalties (250,100, and 10), and a monetary neutral value (00). Unlike previous research employing group designs and a tonic measure (i.e., mean over long periods of time), this study utilized a single-subject design and a phasic measure (i.e., mean over 2-s intervals). Heart rate data was too variable for meaningful analysis. EDR data showed that the peak levels of EDR were higher for penalties than for the cor

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Woods, Barbara Jane Simmons. "Mirthful Laughter and Directed Relaxation: a Comparison of Physiological Response." Thesis, North Texas State University, 1985. https://digital.library.unt.edu/ark:/67531/metadc331273/.

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The differences among certain physiological changes occurring in response to mirthful laughter, directed relaxation, and verbal speech were investigated. These changes included amount of muscle tension, as measured with surface electromyography, in the forehead and in the upper body as recorded from the forearms bilaterally, peripheral surface skin temperature, heart rate, and respiration rate. The study sought to determine whether the net effect of laughter, as measured on these five variables after a three-minute refractory period, is a more relaxed state than existed before the laughter. De

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Maune, Jerene Mary 1953. "THE EFFECT OF CAFFEINE ON HEART RATE, RHYTHM AND BLOOD PRESSURE." Thesis, The University of Arizona, 1986. http://hdl.handle.net/10150/276372.

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Zhang, Yi. "Implications of natriuretic peptides and endothelin-1 release during myocardial ischaemia." Title page, contents and abstract only, 1998. http://web4.library.adelaide.edu.au/theses/09PH/09phz6334.pdf.

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Addenda and corrigenda are tipped-in & numbered leaves 281-282. Copies of author's previously published articles are inserted back end paper. Bibliography: leaves 222-279. Studies were performed in the Langendorff-perfused isolated rat heart, using a paradigm in which atrial distension was prevented. The release of natriuretic peptides and endothelin-1, along with cardiac function was monitored during periods of transient ischaemia or hypoxia. Additional studies were performed in patients undergoing cardiac catheterization.

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Reed, Daniel Kelvin. "THE EFFECT OF HYPEROXIC GAS MIXTURES ON RECOVERY FROM SHORT-TERM MAXIMAL EXERCISE (VENTILATION, HEART RATE, PH)." Thesis, The University of Arizona, 1986. http://hdl.handle.net/10150/276382.

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Brunelle, Caroline. "The role of alcohol-induced cardiac reactivity in addiction : investigations into a positive reinforcement pathway." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=102482.

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Alcohol abuse is the second most prevalent lifetime psychiatric disorder. However, individuals do not face an equal risk of developing problematic alcoholrelated behaviors. Alcohol use disorders are heterogeneous conditions whose development may be caused by a variety of factors and vulnerabilities. The identification of markers of risk is necessary in order to identify individuals at higher risk for addiction early on as well as to help develop treatment interventions which target an individual's specific risk factors. The goal of the present dissertation is to increase our understanding of t

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何頌詩 and Chung-sze Joyce Ho. "Effects of preconditioning with metabolic inhibition or U50488H or high CA2+ on CA2+ homeostasis in ventricular myocytes subjected tosevere metabolic inhibition or high CA2+." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B31226024.

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Torres, Esperanza. "THE EFFECTS OF CAFFEINE INGESTION ON FETAL HEART RATE IN PREGNANT COLOMBIAN WOMEN." Thesis, The University of Arizona, 1985. http://hdl.handle.net/10150/275340.

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Chung, Siu-fung, and 鍾少鳳. "A case control study on smoking, alcohol drinking and other risk factors of coronary heart disease in Hong Kong." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B29775334.

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Assaad, Jean-Marc. "The heart rate response to alcohol intoxication and its relationship with alcohol consumption, delinquency, and intoxicated aggressive and disinhibited behaviors /." Thesis, McGill University, 2002. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=38457.

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Alcohol abuse/dependence frequently co-occurs with antisocial personality disorder (ASPD) and conduct disorder (CD). Furthermore, crime studies have generally found that alcohol is involved in over 50% of violent crimes, and experimental studies support the notion that acute alcohol consumption indirectly increases the likelihood of aggressive and disinhibited behaviors in the laboratory. However, the mechanisms underlying alcohol's association with such behaviors remain unclear. The goals of this thesis were therefore to further elucidate potential mechanisms underlying (a) alcohol-induced ag

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Fu, Shing-yan Karen, and 符誠欣. "Cigarette smoke-induced inflammatory changes in rat heart in vivo." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2012. http://hub.hku.hk/bib/B48333864.

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Cigarette smoke (CS) is a well-established risk factor to cardiovascular health and the most preventable cause of death. Countless studies have demonstrated its harm to health and many more studies investigating its pathogenic mechanisms. While the CS-induced pathogenic mechanism of cardiovascular dysfunction has been mainly attributed to a combination of oxidative imbalance, vascular endothelial dysfunction, inflammation and modification of lipid profile, the focus of the current study was on the mediators of inflammation and the activation of signal pathways. In this study, we investigated

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