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 20 for “"Acclimatisation"”.
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Cultural acclimatisation: Foreign students studying in a private educational institution in Singapore
This Portfolio aims to examine the problems of acclimatisation and coping strategies of such foreign students. A sample of tweleve students was chosen from Chinese students studying at one private educational institution in Singapore. Drawing on the findings of Furnham (1997) and Murphy-Lejenne …
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Chronic hypobaric hypoxia: physiological implications for exercise performance
Acclimatisation to a decreased inspiratory partial pressure of oxygen (Pr02) initiates a series of physiological adaptations that influence oxygen transport and utilisation. \Vhilst it is clear that adequate acclimatisation is necessary to achieve optimal physical performance at altitude, …
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Verticordia micropropagation through direct ex vitro rooting
… and establish reliable root induction and acclimatisation protocols to enhance survival of micropropagated plantlets. It was envisaged that these protocols would be successful in micropropagation, growth and survival of different V. grandis clones and possibly applicable to other …
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Gene expression profile of ethanol-stressed yeast in the presence of acetaldehyde
… expression in Saccharomyces cerevisiae during acclimatisation to non-lethal ethanol stress, in the presence and absence of acetaldehyde. Acetaldehyde caused significant changes in gene expression in ethanol-stressed yeast. For example, many genes associated with protein biosynthesis were more …
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Aspects of the physiology of the resurrection plant Xerophyta Humilis under different environmental conditions
… their daily physiology, and for any evidence of acclimatisation to the different environments.
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Establishment of Arbuscular Mycorrhizal Fungi (AMF) on micropropagated teak (Tectona grandis L. F.)
… grandis L. f.) clones was examined at the acclimatisation phase. Teak shoots were maintained on a multiplication medium containing Murashige and Skoog (MS) nutrients and organics, 30 g L-1 sucrose, 0.5 μM benzyl amino purine, 0.5 μM kinetin, 2.5 g L-1 agar, 2.5 g L-1 gelrite and pH 5.8. …
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Ocean acidification: physiological response from fish to cell
… fish intestine has an important role in the acclimatisation mechanisms to environmental stressors. Therefore, this Ph.D. thesis aimed to provide new insights into the intestinal response to a simulated predicted ocean acidification scenario at the functional and molecular level. Using the …
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Ecological and physiological responses of hard corals to variations in seawater carbonate chemistry
… further the potential of adaptation and/or acclimatisation of coral species to low pH.
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Ocean acidification and its effects upon fitness in nereidid polychaetes
… P. dumerilii and A. succinea are not capable of acclimatisation within one lifetime. Interestingly, P. dumerilii sampled and sequenced from a naturally occurring CO₂ vent in Ischia (Naples, Italy) are genetically different from other P. dumerilii populations within Europe. Individuals appear to …
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Physiological and behavioural responses to temperature and humidity in fossorial amphibians
… benefit. Next, I assessed the effect of seasonal acclimatisation (spring versus autumn) on the thermal sensitivity of metabolism and water loss in Ambystoma maculatum. My findings suggested that acute changes in temperature affected energy and water budgets. However, acclimatory changes in …
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Does acute hypoxia and high altitude exposure adversely affect cardiovascular performance?
… proarrhythmic. Parasympathetic activation with acclimatisation can trigger nocturnal pauses at higher altitudes. HA exposure does not adversely affect cardiac function.
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How does urbanisation affect the breeding performance of African Crowned Eagles (Stephanoaetus coronatus)?
… offer opportunities to understand processes of acclimatisation to urban life and may help in the development of urban spaces for the benefit of wildlife. In many bird species, individuals that occupy territories in more urban areas show lower productivity and lower body condition of nestlings, …
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The reintroduction of the Aldabra rail Dryolimnas cuvieri aldabranus to Picard Island, Aldabra Atoll
… The soft release protocol (including a period of acclimatisation before release and supplementary feeding, as required, after release) is believed to have played a crucial role in the success of the reintroduction by allowing individuals to acclimatise and providing an energetic cushion between …
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Assessment of airflow obstruction from tidal breathing expiratory flow recordings in patients with chronic obstructive pulmonary disease
… time was chosen, recorded after a two-minute acclimatisation period. A method of producing an averaged breath was developed from which a number of novel tidal indices could be measured. After analysis of these indices in pilot studies, three indices, (TBEV i (volume of air exhaled in the first …
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Root adaptive responses of tall fescue (Festuca arundinacea) growing in sand treated with petroleum hydrocarbon contamination
… isodiametric in shape. Once past the initial acclimatisation period of 2.5-3.0 months, no visual differences were observed between control and treated plants, but the root ultrastructural modifications persisted. The fluorescent hydrophobic probe „Nile red‟ was applied to the epidermis of a …
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The impact of heat acclimation on physiological response to exercise and performance at hot and temperate conditions
Heat acclimation training programmes induces physiological adaptations to improve thermoregulatory, cardiovascular, sudomotor and metabolic responses during exercise in hot conditions. Such adaptations include increased sweat rate, improved maximal oxygen uptake, lowered resting and exercising core …
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Redox regulation of vascular NO bioavailability during hypoxia: implications for oxygen transport and exercise performance
… the efficiency of exercise training and as a pre-acclimatisation strategy prior to high altitude ascent. The purpose of the second study was to evaluate the efficacy of a 10 day IH regime consisting of 9x 5 min daily exposures of 9.5% O2 breathing followed by equal periods of normoxia on …
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A multifarious comparative ecotoxicological approach on a catchment scale from three mine wastelands for improved environmental management and risk assessment: integrating abiotic, biotic and agroecosystem approaches
… of the hyper-accumulators showed wide-spread acclimatisation to TSFs through their importance value index (IVI). Our findings suggest that phytomining using indigenous herbaceous plant species in Zambia has potential as a viable technology. Overall, the approach of comparing catchments …
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Growth of mixed cultures of moderate thermophiles for commercial heap bioleaching of low-grade copper-sulphide ores
… up to 5 g/L Cu suggesting the potential for acclimatisation to Cu. At higher Cu concentration, this species did not recover for the entire 127 days of the experiment. This work describes both microbial growth and colonisation of a bioleach heap, and inocula preparation. The work contributes a …
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The influence of acute, chronic and lifelong hypoxia on the functional and structural integrity of the neurovascular unit
… and following 14 days of high-altitude (HA) acclimatisation to 4,300 m in Cerro De Pasco, Peru (<i>chronic HA hypoxia</i>). Age- and BMI-matched healthy native highlanders of the Altiplano (~4300 m) (n = 9, 27 ± 7 yrs, 26.1 ± 6.0 kg/m<sup>2</sup>) were also examined (<i>life-long HA …