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Now showing items 31-40 of 89
“Sources and Distribution of Suspended Particulate Matter (SPM) Using Stable Isotopes In The Central Arabian Gulf”
(Environmental Science, 2020 , Master Thesis)
Suspended Particulate matter (SPM) (>0.45µm) plays a significant role in the global carbon cycle. Hence, we measured changes in concentrations of SPM with depth and at distances from shore in the exclusive economic zone ...
Cadmium, an Environmental Contaminant with a Potential Role In Modulating Cardiac Matrix Metalloproteinases
(Environmental Sciences, 2020 , Master Thesis)
Cadmium (Cd) is a toxic heavy metal that is found in the environment from
both natural and anthropogenic sources. It is a xenobiotic environmental pollutant
with no known essential biological functions. Exposure to ...
Investigation and Biological Control of Toxigenic Fungi and Mycotoxins in Dairy Cattle Feed
(Environmental Sciences, 2020 , Master Thesis)
Mycotoxins are secondary metabolites synthesized by mycotoxigenic fungi,
contaminating human and animal food and feed. Aflatoxin B1 (AFB1) and ochratoxins
(OTA) are frequently detected in animal feed products causing ...
Prospects of Biocrude Production Potential from Local Diatom
(Environmental Sciences, 2020 , Master Thesis)
A marine diatom Nitzchia reversa was grown in 5 sq. m open raceway pond (10
cm culture depth, 500 L culture volume) in the Qatari desert environment. After 7
days of growth, the final biomass density reached 0.52 g/L, ...
Linking Soil Chemical Parameters and Arbuscular Mycorrhizal Fungal Communities in Qatar
(Environmental Sciences, 2020 , Master Thesis)
Much of Qatar’s habitats are characterized by a hyper-arid climate, low rainfall
and scarce soil nutrients; all of which combine to create a stress-induced environment
for fungal development. Agricultural productivity ...
Investigation of the Role of Carbonic Anhydrase in Mineral Formation and Magnesium Incorporation by Bacteria from Qatari Sabkhas and Marine Sediments
(Biological and Environmental Science, 2020 , Master Thesis)
Mineral-forming bacteria are of great interest in arid environments specifically. These
environments are favorable for enhancing the microbial carbonate deposition that is
thought to largely influence the sedimentary ...
A Microbiological Risk Assessment At The Fresh Produce Wholesale Market In Doha
(Biological and Environmental Science, 2019 , Dissertation)
Food contamination is a challenging problem in many developing countries, like Qatar where the majority of food is imported. The wholesale fresh produce market (WSFPM) in Doha is considered as the major produce market from ...
Impact On Local Pearl Oyster Pinctada Radiata Exposed To Chronic Levels Of Chlorine
(Environmental Sciences, 2019 , Professional Masters Project)
The marine environment is facing major challenges due to several natural and anthropological stressors, including chemical and thermal pollutions released by coastal industries using seawater for cooling purposes. The ...
Initial Assessment of Environmental Microbial Hazards in Doha Restaurants
(Biological and Environmental Sciences, 2017 , Master Thesis)
This study was carried out to assess hygiene conditions, food handling practices, food safety knowledge of food service providers (FSPs), and the microbial quality of food served in different food service establishments ...
Development Of Bio-Insecticides Based On Local Qatari Bacillus Thuringiensis Strains For The Biological Control Of Harmful Dipteran Disease Vectors
(Biological and Environmental Science, 2019 , Dissertation)
The very friendly bacterium Bacillus thuringiensis (Bt) is the main source of environment-friendly and safe bioinsecticides used in the control of plant pests and animal and human disease vectors. A collection of 441 Qatari ...