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.
Results
Showing 1 to 20 of 533 for “"Environmental variables"”.
-
Effects of environmental variables on food consumption
1 PDF file (vi, 54 pages)
-
What environmental variables limit Typha expansion in Cape Flats wetlands?
… and mat-like vegetation types respectively. Environmental variables like hydrology were observed by field visits at the end of summer and in winter/spring, and the soils were analyzed in the laboratory for salinity, pH and nutrients.
-
Contaminant reduction by iron oxide nanoparticles: Environmental variables and evolving reactivity
… reactivity was measured as a function of environmental variables, including pH, ionic strength, and the presence of organic matter or secondary mineral phases. The chosen variables simulate severe and impacted environments, such as pesticide-polluted groundwater and acid mine drainage. …
-
Coral calcification : insights from inorganic experiments and coral responses to environmental variables
Coral calcification is examined using a laboratory model and living corals. In the laboratory model, abiogenic aragonite formed at high saturation state (Ω>~20) had a granular appearance and was enriched in trace elements, similar to centers of calcification and dark bands in corals. Abiogenic …
-
The Influence of College Environmental Variables on Premedical and Medical School Performance
Recommendations include factors potential college students should consider when planning for preparation for medical school. Similarly, recommendations are made regarding future directions for institutional outcomes assessment.
-
Environmental variables influencing spatial and temporal patterns of fish spawning and recruitment
… spawning times and intensity depending on the environmental conditions within that spawning habitat. Their spawning migration durations were suggested to be short since they inhabit a dynamic coastal upwelling ecosystem with intra-seasonal differences caused by changes in upwelling strength …
-
Coral calcification : insights from inorganic experiments and coral responses to environmental variables
… and the growth of living corals under different environmental conditions. Abiogenic aragonite was precipitated from seawater over a range of saturation states (Chapter 1). Abiogenic aragonite formed at high saturation state ([Omega]>~20) had a granular appearance and was enriched in trace …
-
A GIS Analysis of the Environmental Variables Related to Rift Valley Fever Outbreaks
… It is important to understand the role environmental variables have played in historical outbreaks to further understand the disease and the possibility of translocation of the virus.</p> <p>This study examines the relationship between both temperature and rainfall rates and Rift Valley …
-
Variation in chemical components of aquacultured Ulva (Chlorophyta) in response to environmental variables
… aims to investigate the potential effects of environmental variables and grazing on the chemical profile, and specifically on the aldehyde-type natural products produced (δH 9.00 - 10.50) by laboratory cultured Ulva using ¹H NMR spectroscopy and multivariate statistical analysis. Ulva …
-
The Impact of Environmental Variables in Efficiency Analysis: A fuzzy clustering-DEA Approach
… the problem in this manner the influence of environmental variables on the efficiency analysis is removed. The concept of environmental dependency index is introduced in this thesis. The EDI reflects the extent to which the efficiency behavior of units is due to their environment of …
-
Global soil respiration: interaction with macroscale environmental variables and response to climate change
… identifies how temporal and spatial variation in environmental factors affects global scale Rs modeling and predictions of future Rs under global warming. Chapter 1 describes the recommend time range for measuring Rs across differing climates, biomes, and seasons and found that the best time for …
-
Environmental variables and the development of phytoplankton assemblages in a hyper-eutrophic African reservoir
… of phytoplankton assemblages in relation to environmental variables was investigated in Lake Chivero between 2003 and 2006. The study showed that there has been a decline in dominance of cyanobacteria in Lake Chivero, instead phytoplankton development exhibited two states: (i) a clear state …
-
Application of remotely sensed environmental variables for predicting malaria cases in Nkomazi municipality South Africa
… of vector s habitat, detail understanding of the environmental and climatic associates, good knowledge of the socio-demographic factors among others. The aim of this study is to create a model that can integrate remotely derived environmental factors with malaria cases and social (population) …
-
The influence of environmental variables on white shark (carcharodon carcharias) sightings at False Bay beaches.
In response to an increase in shark attacks in the Western Cape over the last decade, a shark warning system called Shark Spotters that records white sharks (Carcharodon carcharias) in the surf zone was implemented in 2004 in Cape Town, South Africa.
-
THE INFLUENCE OF ENVIRONMENTAL VARIABLES ON PREDICTING RARE-PLANT HABITAT IN THE NEZ PERCE NATIONAL FOREST
… variants of essentially the same topo-climatic variables (elevation, slope, aspect, precipitation, and temperature). However, these commonly used variables may not sufficiently explain the distribution of rare-plant species, which may have additional habitat needs. The aim of this project was to …
-
THE INFLUENCE OF ENVIRONMENTAL VARIABLES ON PREDICTING RARE-PLANT HABITAT IN THE NEZ PERCE NATIONAL FOREST
… variants of essentially the same topo-climatic variables (elevation, slope, aspect, precipitation, and temperature). However, these commonly used variables may not sufficiently explain the distribution of rare-plant species, which may have additional habitat needs. The aim of this project was to …
-
Impact of Environmental Variables on Community College Dental Assisting Students Who Are at-Risk for Persistence
… question three pertained to the capacity of the environmental variables to predict graduates and nongraduates while examining the influence of the background and academic variables. A discriminant analysis was performed and the results indicated that the model correctly categorized the …
Page 1 of 27