Browsing Biological & Environmental Sciences by Title
Now showing items 76-95 of 95
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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 ... -
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 ... -
PHYTOCHEMICAL CHARACTERIZATION AND EVALUATION OF QATARI MEDICINAL PLANT AS A POTENTIAL SOURCE OF CANCER THERAPEUTIC AGENTS.
(2024 , Master Thesis)Breast cancer stands as the most prevalent form of malignant tumor worldwide, and conventional medicine has so far failed to develop optimally effective treatments. However, complementary, and alternative medicine approaches ... -
A POTENTIAL APPLICATION OF MICROALGAE IN PRODUCED WATER TREATMENT
(2016 , Master Thesis)Produced water, deriving from petroleum industry as a result of oil production, constitutes of high concentration of pollutants, such as dissolved nitrogen, phosphorus, dissolved organic carbon, heavy metals and monocyclic ... -
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, ... -
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 ... -
ROLE OF CHRONIC CADMIUM EXPOSURE ON ADIPOSE TISSUE FUNCTION
(06-2 , Master Thesis)Cadmium (Cd) is a toxic environmental pollutant with a bioaccumulation feature that exceeds 35 years without a known biological role in the living systems. Recently, Cd was found to be accumulated in adipose tissue (AT) ... -
Role of Protein Arginine Methyltransferase 5 (PRMT5) in WNT/β--CATENIN proliferative signaling in breast cancer
(2020 , Dissertation)Protein arginine methyltransferase 5 (PRMT5) activity is dysregulated in many aggressive cancers and its enhanced levels are associated with increased tumor growth and survival. In this study, we show that PRMT5 is ... -
SCREENING, CHARACTERIZATION AND APPLICATIONS OF ENDOPHYTES FROM QATARI HALOPHYTES
(2024 , Dissertation)Saline soil poses a significant challenge for plant growth in arid and semi-arid regions. The harsh climatic and environmental conditions in Qatar and the Gulf region have led to highly saline soil, severely limiting crop ... -
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 ... -
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 ... -
“Sources and Distribution of Suspended Particulate Matter (SPM) Using Stable Isotopes In The Central Arabian Gulf”
(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 ... -
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. ... -
Symbiotic dinoflagellates associated with corals in Qatar: characterization and physiological response to environmental change
(2017 , Master Thesis)Studying coral reefs’ responses to environmental and anthropogenic stressors is crucial to ensure the development of appropriate conservation and restoration programs, especially in areas such as the Arabian Gulf where ... -
The development of novel composite materials of modified roasted date pits using ferrocyanides for the recovery of valuable metal ions from seawater reverse osmosis brine
(2021 , Master Thesis)In this project, novel composite materials from modified roasted date pits using ferrocyanides were developed and investigated for the recovery of valuable metal ions (Li+ and Sr2+) from seawater reverse osmosis (RO) ... -
The Use of Novel Ionic Liquid and Cellulose Nanocrystals Modified Date Pits as Adsorbents for Groundwater Treatment
(2021 , Master Thesis)This study aims to investigate the remediation of Li1+, Mo6+, and B3+ from groundwater using an innovative low-cost adsorbent. Agriculturally abundant date pits were modified to be successfully used as an adsorbent. Chemical ... -
TREATMENT OF RAW SEWAGE WASTEWATER IN A PILOT SCALE PLANT THROUGH A NOVEL METHOD USING MICROALGAE, AND CHARACTERIZATION OF THE PRODUCED BIOMASS FOR FERTI-IRRIGATION: A QATARI CASESTUDY
(2024 , Master Thesis)Global population is on the rise. Water scarcity and demand is at an all-time high. Yet anthropogenic activities keep increasing the amount of wastewater in the environment. While humans have developed wastewater treatment ... -
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 ... -
Variability in Genomic Patterns of Bacterial Communities Related to Tarmats and Quantification of Hydrocarbon Present in the Tarmats Deposited along the Qatar Coast
(2020 , Master Thesis)Qatar has undergone a rapid transition from a fishing and small agriculture to an economy focused on oil and gas since 1960. Owing to the comparatively large level of oil and gas production, the region has become severely ... -
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 ...
