Biological & Environmental Sciences: المرسلات الحديثة
السجلات المعروضة 81 -- 95 من 95
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The most common mosquitoes at Al- Rayyan municipality (Qatar state) and their potential for transmitting malaria
(2015 , Master Thesis)During the period from December 2014 to April 2015, a mosquito survey (Diptera: Culicidae) was conducted at Al Rayyan Municipality, western region of Qatar. The survey aimed to identify the most common mosquitoes species ... -
Northeastern Qatari coast hydrodynamic modeling for assessment of sensitive ecosystems under anthropogenic and natural stressors
(2015 , Master Thesis)The Northeastern Qatari coast, comprising diverse and sensitive flora and fauna communities (e.g. coral reefs and patches, seagrass meadows and turtles) is expected to undergo changes imposed by anthropogenic stressors ... -
INVESTIGATION OF THE NUTRITIONAL REQUIREMENTS AND CORRESPONDING CODING GENES OF HYDROCARBON-DEGRADING BACTERIAL STRAINS FOR THE PRODUCTION OF BIOMASS USEFUL IN BIOREMEDIATION OF PETROLEUM POLLUTION
(2015 , Master Thesis)Petroleum-derived contamination events constitute one of the most dominant sources of environmental deterioration in the industrialized countries. Hydrocarbon compounds are recognized as toxic and carcinogenic organic ... -
Vulnerability of mangroves to sea level rise in Qatar: Assessment and identification of vulnerable mangroves areas
(2015 , Master Thesis)Qatar is one of few countries in Arabian Gulf where mangrove ecosystem exist. They are essential number of ecosystem function; however, this valuable ecosystem is threatened by both anthropogenic and global climatic ... -
Determination of Pesticide Residues of Organochlorine in Some Local and Imported Foods in Qatar
(2015 , Master Thesis)The study was aimed to examine the residues of pesticide in vegetables and fruits in Qatar. The total numbers of samples that were collected were 127 samples of seven most consumed fresh vegetables and fruits from local ... -
Disinfection By-Products of Chlorine Dioxide (Chlorite, Chlorate, and Trihalomethanes): Occurence in Drinking Water in Qatar
(2014 , Master Thesis)The occurrence of disinfection by-products (DBPs) of chlorine dioxide (ClO₂) in drinking water, namely: chlorite, chlorate, and THMs as well as the concentration of ClO₂ were investigated. Two hundred ninety four drinking ... -
Distinctive Physiology (Growth and Photosynthetic Efficiency) of Qatari Corals Under Variable Dynamic Factors, An Experimental Approach
(2014 , Master Thesis)The Arabian Gulf is well known as being probably the most extreme environment in which zooxanthellate coral reef communities occur. A combination of both extremely high and low temperatures as well as high salinities, ... -
Phylogenetic Diversity of Cyanobacteria from Qatar Coastal Waters
(2014 , Master Thesis)Cyanobacteria represent the major microorganism phyla, being diverse and widespread group inhabiting most of the earth's environments. The recent increase of occurrence of toxic cyanobacterial strains in the marine environment ... -
Measurement and Modeling of NO2 Traffic-Related Air Pollution in Doha, Qatar
(2013 , Master Thesis)Six major intersections along C-ring road of Qatar were investigated for NO2 emission. NO2 is considered to be a marker of vehicular pollution thus in this study, its relationship was established with traffic volume in ... -
Characterization of Microalgae Species from Qatar Coastal Waters for Animal Feed Production
(2014 , Master Thesis)Food security worldwide is field of major research and investigation to improve and find new resource production systems for a continuously growing world population. The state of Qatar being an arid and with limited arable ... -
Cadmium Modulates Expression of Vascular Alpha 1 Adrenoceptors and Aortic Smooth Muscle Cells Phenotype
(2013 , Master Thesis)Cardiovascular diseases (CVDs) remain the leading cause of death worldwide, including Qatar. Hypertension is one of the most common CVDs that contribute to this mortality. Cadmium (Cd) is a well-known pollutant that has ... -
Isolation and Screening of Hydrocarbon Degrading Bacterial Strains for Bioremediation of Petroleum Pollution in Qatar
(2013 , Master Thesis)Pollution, due to activities related to the oil industry, represents a serious threat to the natural environment. The application of biotechnological methods provides much safer and sustainable alternatives for bioremediation ... -
Seasonal Changes in Biodiversity and Abundance of Invertebrates in Different Ecological Environments
(2013 , Master Thesis)Biodiversity is a natural quality that must be measured to be understood. It is the measurement of the quantity and diversity of the biota in an area. Each area of the world has its own unique biodiversity as defined by ... -
Spatial and Temporal Distribution of Heavy Metals in Marine Sediment Along the Doha Bay
(2013 , Master Thesis)Concentrations of twenty five heavy metals (Ag, Al, As, Ba, Be, Ca, Cd, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Mo, Na, Ni, Pb, Sb, Se, Sr, V, Zn, and Hg) in surface sediment from ten transects each with five stations were studied. ... -
An Integrated Approach to Benthic Habitat Classification of the North Eastern Qatar Marine Zone Using Remote Sensing, Geographic Information System, and in Situ Measurements
(2014 , Master Thesis)A key aspect in the conservation management of the coastal marine zone is mapping the benthic habitat, which is the focus of the work presented in this project. Multispectral Worldview-2 (WV2) satellite data acquired in ...
