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 13 of 13 for “"Fluctuating temperatures"”.
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Computer vision enabled approaches to predicting responses to fluctuating temperatures in aquatic embryos
… Our current understanding of the effects of fluctuating temperatures (FTs) is predominately based upon comparisons of responses to constant temperatures (CTs). Relating CT responses to those of FTs is typically achieved through the use of thermal performance curves, which are integrated over …
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Growth probability of Escherichia coli O157:H7 and Listeria monocytogenes in packaged fresh-cut romaine mix at fluctuating temperatures during simulated transport, retail storage and display
… and product quality. Consequently, the effect of fluctuating temperatures on Escherichia coli O157:H7 and Listeria monocytogenes growth in commercially bagged salad greens was assessed during transport, retail storage, and display. Over a 16-month period, a series of time/temperature profiles for …
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The Effects of Temperature on the Growth and Competition of Phytoplankton
… algae for extended periods of time at elevated temperatures. My results showed that warming does not necessarily lead to thermal adaptation and that the responses will not be as simple as a mere shift in thermal performance curves towards warmer temperatures. For the last two data chapters I …
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Preliminary Investigations Into the Etiology and Pathogenesis of Equine Leucoencephalomalacia
… humid conditions accompanied by moderate to cool fluctuating temperatures prior to harvest. The naturally occurring disease syndrome is usually manifested by an acute neurologic disorder, death, and leucomalacia in one or both of the cerebral hemispheres.
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Temperature and photoperiod effects on growth and development of day-neutral, junebearing and everbearing strawberries
… under NI. Pn under LD was not considered. Under fluctuating temperatures (18°/14°, 22°/18°, 26°/22° or 30°/26° C day/night combinations), responses to SD and NI varied. At 18/14, DN cultivars flowered under either NI or SD. At 22/18 and 26/22, flowering was greater under NI than SD. At 30/26, …
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Ecological studies of fungi growing on isolated wood
… moisture ranges in wood was investigated. Temperatures up to 160C above ambient were recorded as a result of insolation and data is submitted on the diurnal temperature cycle in a block of wood undergoing insolation. It is recorded that colour had no significant effect upon the moisture …
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Ecological Studies of Fungi Growing on Insolated wood
… fungi were investigated at above ambient temperatures, showing that thermophilous fungi could grow at the surface and within beech veneers at moisture levels below the 20% minimum recorded in the literature, it is considered that the biological activity of water is increased at above …
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Ecological strategies of two Ranunculus species in relation to seasonal submergence
… in this species is promoted by diurnally fluctuating temperatures in both the light and dark but the promotion is greatest in the former.
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Comparisons of Secondary Production, Life History, and Mouthpart Functional Morphology Between Two Populations of the Amphipod Gammarus minus
… the habitat characterized by leaf detritus and fluctuating temperatures (Site 2) was 1.8 g/m² (95% C.I.: 1.6-2.1). Breeding occurred throughout the year at Site 1, but there was a yearly cycle at Site 2. The greatest numbers of the smallest size classes of amphipod were present at Site 2 when …
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The evolution of shelter: ecology and ethology of chimpanzee nest building
… the role of protection from disease vectors and fluctuating temperatures, was assessed through a novel experiment in which I slept overnight in arboreal chimpanzee nests and on the bare earth (Chapter 4). To assess whether or not nests serve as an anti-predation function, I compared nesting in …
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Genomics-Based Characterization of the Microbial Community and Plasmidome of the Regina Wastewater Treatment Facility and the Surrounding Aquatic Environment
… selective pressures, including predation, fluctuating temperatures, sub-therapeutic levels of antibiotics, and heavy metals. Although microbial activity plays a large role in the functionality of these systems, there is limited information about the resident microbial communities within. In …
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Photoperiodic time measurement and seasonal adaptation of the southwestern corn borer, Diatraea grandiosella Dyar (Lepidoptera : Pyralidae)
… stages. How the insect responds to natural fluctuating temperatures and changing photoperiods was shown to be required information for prediction. The seasonal change in the intensity of diapause and in the sensitivity to both diapause terminating and maintaining photoperiods were also …