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 121 for “"Seasonal patterns"”.
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Seasonal patterns in asthma hospitalization rates in Saskatchewan
… examined in order to see if they exhibited a seasonal pattern. The agegroups studied were 0-4, 5-14, 15-34, 35-49 and 50-64. Male and females rates, as well as native and non-native patterns were compared to see if the patterns differed by sex or race. Methods The method used was that of …
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Seasonal patterns of colonization by protozoa in an oligotrophic lake
Seasonal effects on protozoan colonization of polyurethane foam (PF) units were investigated in.an oligotrophic lake, Mountain Lake, Virginia. PF units were placed into the lake's pelagic water to simulate barren habitat islands suitable for colonization by protozoa. The results were interpreted …
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An investigation in the seasonal patterns of bacterial colonisation in childhood pneumonia
… This study investigates the trends and patterns of bacterial carriage in the development of pneumonia in South African infants up to one year of life. It is hypothesised that respiratory bacterial carriage is considerably influenced by age and seasonality. Based on previously collected …
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Seasonal patterns of mortality in medical admissions at Groote Schuur Hospital, Cape Town: 2002-2009
… that hospital mortality may be influenced by seasonal factors. Very few studies examining this phenomenon have been conducted in South Africa. This study aimed to determine whether there are seasonal patterns of mortality associated with medical causes of admission to a hospital in Cape Town, …
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Seasonal Patterns of Plasma Testosterone Levels, Bite Force, and Locomotor Performance in Non-Territorial Male Lizards, Aspidoscelis Sexlineata
… variation in performance. This study examined seasonal patterns of circulating testosterone, morphology, bite force, and locomotor performance in a non-territorial lizard species to address this hypothesis. Male Aspidoscelis sexlineata (n=133) were collected throughout the active season, and …
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Spatial and Seasonal Patterns of Above- and Belowground Vegetation Biomass and Potential Drivers in the Pascagoula River Delta, MS
<p>Coastal wetlands provide a valuable wealth of services to the greater coastal ecosystem and human communities. However, threats such as sea level rise and conservation projects, such as freshwater diversions, have the potential to alter coastal wetlands in different ways. In this thesis, I …
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Seasonal patterns in body temperature and behaviour in Cape ground squirrels, Xerus inauris, living in a semi-arid environment
… ground squirrels, Xerus inauris, to investigate seasonal body temperature patterns. Data loggers recorded body temperature at 5-min intervals while microclimate variables were recorded in situ at 15 minute intervals. The behaviour of the study animals was recorded using 5-min scan samples …
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Spatial Variability and Seasonal Patterns of Co-Occurrence between two Marine Biotoxins in the Puget Sound and Implications for Public Health Management
… The findings reveal distinct geographic patterns in toxin occurrences, indicating basin-specific environmental influences on toxin concentration. Additionally, concentrations of both toxins showed seasonal variation, though temporal peaks were not often synchronous, resulting in …
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Assessing the Impact of Climate Change on Tourism Demand
… of climate warming on tourism visitation and seasonal patterns could assist tourism managers to develop future adaptation plans for revenue maximization.
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The commercial beach-seine fishery in False Bay, South Africa
… it in an historical perspective, to describe seasonal patterns in catches and effort and to assess the impacts of netting on juvenile fish and benthic organisms. The overall objective was to provide a "scientific" basis for the resolution of the controversy surrounding this fishery.
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The Importance of Local Level Actors: A Comparison of Integration Policies for Foreign Migrant Residents in Two Cities in Japan
… Brazilian Nikkeijin in the two cities will share seasonal patterns. I test these hypotheses through interviews conducted in 2015 with representatives from local organizations in Toyota and Yokkaichi and through the information in the websites of these organizations. My findings support the …
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Food Habits, Starvation and Growth in the Hellbender, Cryptobranchus Alleganiensis
… in all months. Both fish and crayfish showed seasonal patterns of occurrence in the samples. Ten animals were starved up to 220 days, exhibiting very gradual decreases in weight. Eight animals were maintained at constant weights to determine subsistance levels. Growth sufficient for …
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Statistical modelling of environmental trends over both time and space
… that allow us to fit models capable of explaining seasonal patterns and changes observed over time and space. The work developed in this thesis is centred on the modelling of trends over time and space simultaneously. The analysis of this information could be carried out in a marginal manner over …
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Land Cover Influences on Stream Nitrogen Dynamics During Storms
… through nitrogen concentration/discharge patterns, nitrogen concentration relationship to land cover, and comparison of storm and base flow nitrogen concentrations over time. Weekly base flow samples and samples from six storm were collected in 2010-2011. Total dissolved nitrogen (TDN), …
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Response of barrier island fish assemblages to impacts from multiple hurricanes: assessing resilience of Chandeleur Island fish assemblages to hurricanes Ivan (2004) and Katrina (2005)
Hurricanes can temporarily disrupt seasonal patterns of fish assemblage change or result in permanent changes in fish assemblages. I studied the effects of two hurricanes on fish assemblages at the Chandeleur Islands and the possible influence that storm-generated tidal channels may have on the …
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An empirical examination of price behavior on the Hong Kong stock market
… equity markets. In addition, some common seasonal patterns of stock price movements appear across the different national markets, and innovation transmissions from market to market are significant and efficient. The study provides added support to the hypothesis of an integrated world …
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Seasonal dynamics of edaphic bacterial communities in the hyper-arid Namib desert
… over 1 year in an 8100 m2 sampling site revealed seasonal patterns of variation in community structure. Soil moisture, phosphorus, potassium and magnesium were identified as significant abiotic drivers of community temporal dynamics. β diversity was found to increase over time, while the …
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Relationship of Grain Stocks and Farmer Marketings
… but market indicators are dominated by strong seasonal patterns in both disappearance and marketings.</p> <p>A disparity between on-farm and off-farm disappearance is identified, the latter being intractable to quantify. A disparity between marketings and on-farm disappearance suggests a large …
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Distribution, patchiness, and behavior of Antarctic zooplankton, assessed using multi-frequency acoustic techniques
… biomass of zooplankton. Distinct spatial and seasonal patterns were observed that coincided with advective features. Improved parameterization was then achieved for a theoretical model of Antarctic krill target strength, the quantity necessary in scaling measurements of scattered sound to …
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