Biological & Environmental Sciences: المرسلات الحديثة
السجلات المعروضة 41 -- 60 من 89
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Uncovering the Epigenetic Contribution of Protein Arginine Methyltransferase 5 (PRMT5) during Zebrafish Cardiomyogenesis
(2020 , Dissertation)The heart develops through an extremely intricate process mediated by a network of transcription factors initiated by key chromatin modification events. Scientist have implicated the protein arginine methyltransferase ... -
Investigation and Biological Control of Toxigenic Fungi and Mycotoxins in Dairy Cattle Feed
(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 ... -
Investigation of the Role of Carbonic Anhydrase in Mineral Formation and Magnesium Incorporation by Bacteria from Qatari Sabkhas and Marine Sediments
(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 ... -
Cadmium, an Environmental Contaminant with a Potential Role In Modulating Cardiac Matrix Metalloproteinases
(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 ... -
Prospects of Biocrude Production Potential from Local Diatom
(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, ... -
Heavy Metals Hyperaccumulation and the Role of Stress-Induced Proteins in Phytoremediation Mechanism in Selected Qatari Plants
(2020 , Dissertation)Progressive pollution of the environment by trace and heavy metals pose a significant risk and causes diverse human diseases. Current world initiatives to remove these toxic substances from the environment are costly and ... -
The Novel Role of BRIP1 in Breast Tumor Development and Progression
(2020 , Dissertation)Breast cancer (BC) is the most common malignancy and the leading cause of death in women worldwide. Only 5-10% of mutations in the BRCA genes are attributed to familial breast tumors in Eastern countries, suggesting the ... -
Mobile Epifauna Associated To Artificial Substrates In Offshore Qatari Waters
(2019 , Master Thesis)Offshore human-made structures including oil and gas platforms and other energy producing structures, such as foundations of windfarms, serve as hard substratum supporting diverse marine communities of invertebrates both ... -
Date Pits Based Nanomaterials For Thermal Insulation Applications - Towards Energy Efficient Buildings In Qatar
(2019 , Professional Masters Project)Air-conditioning systems make the most significant part of energy consumption in the residential sector. There is no denying that it is essential to produce a comfortable indoor thermal environment for residents in a ... -
Biological Control Of Mycotoxigenic Fungi And Associated Mycotoxins By The Application Of Bacterial And Yeast Antifungal Compounds
(2019 , Master Thesis)Mycotoxins are secondary metabolites of mycotoxigenic fungi and are considered as a serious threaten to the life of humans and animals, since some of these mycotoxins are carcinogenic compounds. In this M.Sc research ... -
Seasonal Variations Of Dinophysis Species And Their Toxins In Qatari Waters, Arabian Gulf
(2019 , Master Thesis)The results of investigations from several cruises carried out in Qatari waters between 2017 and 2018 were reported. The species composition, distribution and toxicity of Dinophysis community were examined. A total number ... -
Optimizing The Remediation Of Organophosphorus Pesticide Profenofos From Water Using Activated Date Pits: Mechanistic Studies
(2019 , Master Thesis)The aim of the study was to examine the efficiency of date pits as an adsorbent to remove the organophosphate pesticide profenofos from wastewater. Various adsorption isotherms models namely Langmuir isotherm, Freundlich ... -
Development Of Bio-Insecticides Based On Local Qatari Bacillus Thuringiensis Strains For The Biological Control Of Harmful Dipteran Disease Vectors
(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 ... -
A Microbiological Risk Assessment At The Fresh Produce Wholesale Market In Doha
(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 ... -
Development Of A Protocol For Culturing And Maintaining Seagrass, Halodule Uninervis, Under Laboratory Conditions And Its Application To Determine Impacts Of Light On Seagrass Growth
(2019 , Professional Masters Project)Seagrass meadows are an important component of the marine ecosystem as they not only contribute nutrients and organic carbon to the nutrient cycle, but also, provide food, habitat and nursery grounds for a plethora of ... -
Impact On Local Pearl Oyster Pinctada Radiata Exposed To Chronic Levels Of Chlorine
(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 ... -
The Effect Of The Blockade On Governmental Health-Care Services In Qatar
(2018 , Master Thesis)Problem: A good portion of the budget dedicated to the health-care sector every year for laboratory and pharmacy services is spent on patient care, instruments and equipment, medication, software, facilities, and so on. ... -
Elemental Composition, Source Tracking, And Air Quality Assessment Of Pm2.5 And Pm10 Pollution In Qatar
(2018 , Master Thesis)Particulate matter (PM) pollution is one of the major environmental pollution issues severely affecting human health and air quality all over the world. Based on the recent World Health Organization (WHO) report, PM ... -
Diversity Of Metazoan Parasites Of Two Reef Associated Fish Species From Qatar (Acanthopagrus Bifasciatus And Pomacanthus Maculosus)
(2018 , Master Thesis)The aim of the present work was to study the parasitic diversity of two coral-reef associated fish species (Acanthopagrus bifasciatus and Pomacanthus maculosus) from Qatari waters. There were eight species of parasites ... -
ROLE OF AEROBIC BACTERIA IN DOLOMITE FORMATION IN THE EVAPORITIC ENVIRONMENTS OF QATAR SABKHAS
(2018 , Dissertation)Sabkha (salt flats) are extreme evaporitic environments inhabited by a large diversity of halophilic microorganisms. Sabkhas have been studied to understand the microbemineral interactions that lead to the formation of ...