Student Thesis & Dissertations: المرسلات الحديثة
السجلات المعروضة 541 -- 560 من 1630
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PREPARATION OF WS2/TIO2 NANOSTRUCTURES FOR PHOTOCATALYTIC APPLICATIONS
(06-2 , Master Thesis)The energy from fossil fuels has been recognized as a main factor of global warming and environmental pollution. Therefore, there is an urgent need to replace fossil fuels with clean, cost-effective, long-lasting, and ... -
Development of Biofertilizer from Local Qatari Cyanobacteria Strains for Enhancement of Bell Pepper (Capsicum annuum L.) Growth, Yield, and Abiotic Stress Tolerance under Hydroponic System
(06-2 , Dissertation)The beneficial cyanobacteria strain (blue-green algae) Roholtiella sp. QUCCCM97 has been found to be the origin of an eco-friendly and environmentally safe biofertilizer whose extract and biomass were used to increase the ... -
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) ... -
EFFECT OF BIOINSPIRED SYNTHETIC ANTI-MICROBIAL PEPTIDES ON COLORECTAL CANCER CELLS (SW620)
(06-2 , Master Thesis)Colorectal cancer (CRC) is the world's third most common cancer and the second biggest cause of cancer-related deaths. Despite significant advances in CRC therapeutic intervention, cytotoxicity, drug resistance, and adverse ... -
SEPARATION OF OIL/WATER MIXTURES BY CHEMICALLY MODIFIED MELAMINE FOAMS
(06-2 , Master Thesis)Polymeric foams represent suitable porous sorbents for separating various contaminants dispersed in water. One of the most common polymeric foams is melamine (ME) foams, which are particularly suitable for removing oil ... -
VARIOGRAM MODELING FOR SPATIAL CORRELATION IN STRUCTURAL MRI IMAGES
(06-2 , Master Thesis)In recent years neuroimaging techniques growth help us to understand the working of the human brain by using structural magnetic resonance imaging (sMRI) and functional magnetic resonance imaging (fMRI). Structural MRIs ... -
DEVELOPMENT OF A NOVEL TAILORED ION-IMPRINTED POLYMER FOR RECOVERY OF LITHIUM AND STRONTIUM FROM REVERSE OSMOSIS CONCENTRATED BRINE
(06-2 , Master Thesis)Seawater reverse osmosis (SWRO) desalination plants produce a large volume of brine containing a variety of concentrated metals, causing environmental concerns and obstacles. The innovation of this project is to prepare ... -
REGIONAL INTERVENTIONS OF GULF MONARCHIES AND RESURGENCE OF ISLAMIC SECTARIANISM DURING THE ARAB SPRING
(06-2 , Master Thesis)This study examines the sectarian aspect and narrative of the Arab Spring by comparatively assessing the actions and policies of three Gulf monarchies actively involved in regional conflicts: Saudi Arabia, the United Arab ... -
ON VARIABLE SELECTION WITH THE PRESENCE OF MISSING DATA IN LONGITUDINAL PANEL STUDIES
(06-2 , Master Thesis)Longitudinal data are valuable in various disciplines because they provide helpful developmental patterns over time. However, frequently, it is challenging to have a high dimension of covariates and ubiquitous missing ... -
LINEAR AND BAYESIAN ESTIMATION OF THE PARAMETERS OF THE TYPE II GENERALIZED LOGISTIC DISTRIBUTION BASED ON PROGRESSIVELY TYPE II CENSORED DATA
(06-2 , Master Thesis)Generalized distributions have become widely used in applications recently. They are very flexible in data analysis, especially with skewed models that are important and occur frequently in many applications. In particular, ... -
AN IMPROVEMENT OF INTERFACIAL ADHESION BETWEEN AL FOIL AND LOW DENSITY PE THROUGH BLENDING WITH FUNCTIONLIZED POLYMERS
(06-2 , Master Thesis)An enhancement of interfacial adhesion between low density PE (LDPE), particularly QAPCO LDPE packing grade and aluminum foil is an important challenge in designing of multilayered packaging (TetraPak type of packaging) ... -
INVESTIGATING THE MOLECULAR MECHANISMS UNDERLYING THE ANTI-CANCER ACTIVITIES OF DIOSMETIN IN COLORECTAL CANCER CELLS: AN IN VITRO STUDY
(06-2 , Master Thesis)Diosmetin, a bioflavonoid isolated from citrus fruits, has been reported to have cytotoxic effects against various types of cancer. Although Diosmetin is found to have cytotoxic effects in Colorectal Cancer (CRC) cells, ... -
PARAMETRIC AND NONPARAMETRIC PORTMANTEAU TESTS FOR LACK OF FIT IN TIME SERIES MODELS: A COMPARATIVE STUDY
(06-2 , Master Thesis)Several diagnostic tests for the lack of fit time series models have been introduced using parametric and nonparametric portmanteau tests. Some tests have been proposed based on the asymptotic distributions. Others are ... -
IMPROVED INFERENCE FOR THE SCALE PARAMETER IN THE LOMAX DISTRIBUTION BASED ON ADJUSTED PROFILE LIKELIHOOD FUNCTIONS
(06-2 , Master Thesis)In this thesis, we consider improving maximum likelihood inference for the scale parameter of the Lomax distribution. The improvement is based on using modification to the maximum likelihood estimator based on Barndorff-Nielsen's ... -
MERCURY AND METHYL MERCURY IN FISH: CONTAMINATION LEVELS AND HEALTH RISKS
(06-2 , Master Thesis)This study aims to assess the risks that mercury and methyl mercury would be posing on the health of fish consumers. The fish consumption patterns of Qatar residents aged 18 years and above were obtained using a fish ... -
EFFECT OF PHENOL AS A CONTAMINANT ON THE WILD PEARL OYSTER PINCTADA IMBRICATA RADIATA IN QATAR: ECOTOXICOLOGICAL APPROACH AND USE OF OYSTER SHELL STRUCTURE AS A POTENTIAL MITIGATION TOOL FOR PHENOLS REMOVAL FROM WATER
(06-2 , Master Thesis)Phenol removal is a vital environmental concern due to its toxicity and hazard effects. The current study investigates the removal of phenol by Pearl oyster Pinctada imbricata radiata for the first time in this region. The ... -
EVOLUTION OF U.S FOREIGN POLICY TOWARDS THE GULF DURING TRUMP'S PRESIDENCY (2016 - 2020): IMPLICATIONS FOR THE IRAN-GCC RELATIONS
(06-2 , Master Thesis)The U.S and Arab Gulf States' relations had been strong since the 1979 Islamic revolution, and this had a negative impact on the GCC Iranian relations. However, by the mid-2010s, the GCC - U.S. relations witnessed a serious ... -
THE ROLE OF GOVERNMENT ENDORSEMENT IN PUBLIC ONLINE CAMPAIGNS: A STUDY OF THREE CRISES CASES THAT AFFECTED THE GULF REGION
(06-2 , Master Thesis)This study investigates the use of social media-based campaigns in the Gulf region and examines the extent to which government participation in such campaigns affects their outcomes. Three online public campaigns that ... -
NON-DETERMINISTIC MODELING USING QUANTILE REGRESSION
(06-2 , Master Thesis)In this thesis, we utilize quantile regression to model the conditional quantile of the dependent variable given independent variables to capture more details about the conditional distribution. In addition, we apply the ... -
PREPARATION AND CHARACTERIZATION OF POLYMERIC FOAMS FOR REMOVAL OF FREE OIL FROM WATER
(06-2 , Master Thesis)Development of polymeric foams for removal of oily pollutants (spills) from water is a key target of this thesis. Pollutants occur in the form of free oil (floating on the water surface) or oil/water macroscopic, non-stabilized ...
