Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 63 for “"Diurnal variation"”.
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Proteomic analysis of diurnal variation in human skeletal muscle performance
… function measurement were employed to study diurnal variation. Time-of-day differences in sports performance and muscle function are widely reported, and typically, performance is ~10 % greater in the evening compared to the morning. This is consistent with our result in Chapter 3; we …
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Analysis of building's response to diurnal variation in ambient temperature
An analysis is conducted to determine the number of nodes necessary to understand the influence that ambient temperature has on a building's interior air temperature. The simple case of a wall of homogeneous material is modeled as an electrical system: the building walls are modeled as resistors …
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DIURNAL VARIATION OF WATER VAPOR ISOTOPOLOGUES ON THE CHAJNANTOR PLATEAU DURING THE AUSTRAL SPRING
The diurnal variation of water vapor isotopologues over the Chajnantor Plateau during the Austral Spring was investigated using a near continuous record of in situ water vapor isotopologues, numerical modeling, and routine meteorological measurements. On average, there is an approximately 34% …
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Glymphatic flow diurnal variation in the brain inhibited by circadian rhythm disruption and recovered by arginine vasopressin administration
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2025-05-01
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Diurnal Variation Patterns in the Rumen of Cattle: Studies of Bacterial Numbers, Carbohydrate-Specific Groups and Ruminal Fluid Parameters
Diurnal variation in the size and composition of mixed rumen bacterial populations in cattle fed either high forage or high concentrate diets (maintenance intake levels) was followed after a once daily feeding. Samples of ruminal contents were collected from rumen-fistulated, Holstein steers at -1, …
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The influence of sleep-wake behaviour and chronotype on the match-play and physical performance of tennis players
… sleep-wake behaviour (SWB), chronotype, and diurnal variation have on skill execution, physical attributes and match-play outcomes in other sports and how few studies have explored their impact on tennis players. Chapter three of this thesis investigated the relationship between chronotype …
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Radon, progeny and health: investigation in different environments in Northamptonshire
… directly, relative to the mechanically created variation of the atmospheric conditions inside the building. From the findings, a general hypothesis is postulated. It is probable, that the diurnal variation of radon results from the diurnal variation in ambient water vapour pressure. And that the …
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Endogenous atrial natriuretic factor and airway control
… approaches are used. One approach examines the diurnal variation of endogenous ANF and its effect on the airway function of asthmatics and non-asthmatics. The second approach analyses a change in bronchoresponsiveness and/or airway calibre in response to manipulation of endogenous ANF levels.
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Monitoring Arthritis - Biochemical, Metodological and Clinical Aspects
… (PF) compartments. In paper III the diurnal variation of serum COMP was studied in individuals with clinically verified OA and in patients with RA. We found that serum COMP has a half-life of about 7 hours and it has a significant diurnal variation but serum levels were stable during …
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Aspects of the respiratory metabolism of juvenile rainbow trout (Oncorhynchus mykiss) at sustained swimming speeds
… hour experiments indicated no detectable diurnal variation in the respiration rates of juvenile rainbow trout. Experiments investigating aerobic energy expenditure at sustained swimming speeds, through measurements of oxygen consumption rates, are described. Oxygen consumption was found to …
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The diurnal cycle of cloud cover over southern and central Africa
… to improve the current understanding of cloud diurnal variability over this region by providing a base-line diurnal climatology of lowlevel, mid-level and high-level cloud cover. Diurnal variations of cloudiness are examined using ten years of cloud data from latest version of the International …
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Factors affecting the ability to undertake repeated sprint performance
… the area of repeated sprint (RS) performance and diurnal/circadian rhythmicity; 2) to develop a new RS protocol that conforms to field based team sport time-motion analysis and determine its reliability and compare this with a RS protocol previously utilised in the literature; 3) to assess the …
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Η νυχθημερήσια διακύμανση της TSH σε νεογνά και βρέφη
… children and adults show a similar pattern of diurnal variation of TSH secretion with lower values at 11.00 h and higher around 23.00 h. The purpose of this study was to investigate the age of appearance of TSH circadian rhythm. In 57 full-term infants 0-6 months old and in 37- premature …
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Assessing the risk of ocean acidification for scleractinian corals on the Great Barrier Reef
… metabolism. Chapter 3 characterises the diurnal variation in carbonate chemistry at sites around Lizard Island and links this to the ocean acidification response of Acropora millepora collected from these sites. Furthermore, we utilise permutational multivariate statistical analyses to …
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The Hormonal Profile of Elite Super League Players During and After Competition
… were recruited for this project to profile the diurnal variation in salivary testosterone and cortisol levels (at rest and across matches). All players were familiarised with the saliva collection techniques, and samples were collected over 4 separate fixtures during the 2012-13 season. Salivary …
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Nutrient dynamics in a headwater stream : use of continuous water quality sensors to examine seasonal, event, and diurnal processes in the East Fork Jemez River, NM
… change substantively over seasonal, event, and diurnal scales. Multiple biogeochemical processes operate on a 24-hour timescale, and also may be influenced by local weather and precipitation events. Increased sampling frequency, made possible by recent developments in continuous water quality …
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Investigations into some important fish larvae in the south east Atlantic in relation to the hydrological environment
… fish eggs and larvae. (vii) the determination of diurnal changes in abundance and size composition of various larval species. The results reported are regarded as scientifically significant in view of the paucity of basic information on the early life history of any fish species off South West …
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Refractive error, ocular biometry and oculomotor function: The prevalence of myopia and its potential risk factors in the Middle East, with an investigation of dynamic accommodation responses and axial length fluctuations in young myopic adults.
… factors for myopia development and progression Diurnal variations in axial length (AL) of similar magnitude to those previously reported in emmetropes were observed in myopes recruited in the current thesis. However, the pattern of the diurnal variation in AL was significantly different between …
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