Browsing College of Arts & Sciences by Title
Now showing items 174-193 of 319
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Physico-Mechanical Properties of New Electrospun Polyvinylidene Fluoride Nanocomposites
(2015 , Master Thesis)This study aimed to prepare and characterize poly(vinylidene fluoride) (PVDF) nanofibres with the following additives: graphene oxide (GO), cellulose, and silver nanoparticles (Ag-NPs). Two types of solvents were used to ... -
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 ... -
Political and Security Alliances between GCC and Pakistan: "Saudi Arabia, Oman and Qatar (1970-2019)"
(2021 , Master Thesis)Pakistan is an Islamic state which is enriched with natural resources and ideal geographical position. These attributes add to its uniqueness in the whole world and it is highly regarded by the Muslim community as they ... -
Polymer-Matrix Nanocomposite Membranes For Water Treatment
(2019 , Master Thesis)A new generation of advanced fibrous materials with high surface area, large number of pores, high flexibility and adjustable wettability were manufactured from different materials which are viable for many applications ... -
The Portrayal Of The State Of Qatar In The Media: An Analytical Study Of The Newspapers Of The Gulf Blockading Countries (From 24 May 2017 To 21 September 2017) Of The Gulf Crisis 2017–2018
(2019 , Master Thesis)This research study investigates the ways in which the State of Qatar was portrayed in some of the Arabic-language newspapers of the three Gulf blockading countries. The main question addressed concerns the main characteristics ... -
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 ... -
Preparation and characterization of flexible all solid state CNT/MnO2 Supercapacitors
(2018 , Master Thesis)In this work, CNTs/MnO2 hybrid supercapacitors were prepared using RF magnetron sputtering as deposition technique. The as-prepared composite materials were characterized by different morphology and spectroscopy techniques, ... -
Preparation And Characterization Of Multilayered Electrospun Composite Scaffolds For Biomedical Applications
(2019 , Master Thesis)Electrospinning has gained wide attention recently in biomedical applications. Electrospun biocompatible scaffolds are well-known for biomedical applications such as drug delivery, wound dressing and tissue engineering ... -
PREPARATION AND CHARACTERIZATION OF NANOSTRUCTURE MATERIAL FOR BIOLOGICAL APPLICATION
(2023 , Master Thesis)Currently, nanomaterial has gained much attention in medical applications. Two different nanostructured materials were synthesized for biomedical purposes in this approach. Firstly, a composite of bimetallic nanoparticles ... -
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 ... -
PREPARATION OF POLYSTYRENE/ NICKEL OXIDE NANOCOMPOSITE SUPERHYDROPHOBIC COATING FOR PROTECTION AGAINST CORROSION
(2020 , Master Thesis)Many technologies have been studied carefully to overcome the corrosion phenomenon of various metal species found in nature. Among these, the high water repellent surfaces have received significant attention from researchers ... -
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 ... -
PREVALENCE OF BREASTFEEDING INDICATORS IN MIDDLE EAST AND NORTH AFRICAN COUNTRIES: A META-ANALYSIS OF NATIONAL HEALTH SURVEYS (2010- 2020)
(2022 , Master Thesis)Introduction: Breastfeeding is the clinical gold standard for an infant's nourishment. Worldwide, less than one in two newly born infants are breastfed within the first hour of birth and only 44% of infants are exclusively ... -
Properties and thermal stabilization of Nanocrystalline copper via solute additions of niobium
(2017 , Master Thesis)Nanocrystalline materials, those with grain size <100 nm, were found to have superior mechanical properties compared to their coarse-grained (CG) counterparts. However, these materials are not thermally stable because of ... -
Proportional Hazard Regression Model Under Partly Interval-Censoring Assumption with Application to Prison Data
(2020 , Master Thesis)In this thesis the analysis of well-known model in survival study that is Cox proportional hazard regression model via prison Partly Interval Censored (PIC) data is used. The maximum likelihood estimate was considered ... -
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, ... -
PURIFICATION OF PRODUCED WATER BY CUTTLEFISH BONE ADSORBENTS
(2024 , Master Thesis)The cuttlefish bone powder (CFB) which is mostly composed of calcium carbonate was prepared, characterized, and modified to use it for the purification of emulsified oil/water mixtures from produced water. The focus was ... -
QATAR DIGITAL PUBLIC DIPLOMACY IN SOMALIA: FRAMING QATAR'S FOREIGN AID IN FACEBOOK AND TWITTER
(2024 , Dissertation)The State of Qatar has adopted soft power in its foreign policy to compensate for its geographical size and to preserve its national security. This gave the State of Qatar, as a small state, strength and a regional presence. ... -
Qatar Foreign Assistance to Education Development in Africa: Prospects and Pitfalls
(2021 , Master Thesis)This thesis is aimed to analyze Qatar's foreign aid to the Sub-Saharan countries especially in terms of educational aid over the period of (2013-2019). It highlights the evolution of Qatar's educational aid to the ... -
QATAR MEDIATION STRATEGY: AFGHANISTAN AS A CASE STUDY
(2024 , Master Thesis)Qatar is a small Gulf state located in a critical geopolitical location. It gained its independence in the early 1970s, a time where the Gulf region was going through many incidents such as the Iranian Revolution, the ...