Browsing Research Units by Title
Now showing items 2485-2504 of 4858
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Isolation and characterization of a newly naphthalene degrading Halomonas pacifica, strain Cnaph3: biodegradation and biosurfactant production studies
( Springer Verlag , 2020 , Article)A newly marine Halomonas pacifica strain Cnaph3 was isolated, as a naphthalene degrader and biosurfactant producer, from contaminated seawater collected in Ataya's fishing harbor, located in Kerkennah Islands, Tunisia. ... -
Isolation and Identification of Organics-Degrading Bacteria From Gas-to-Liquid Process Water
( Frontiers Media S.A. , 2021 , Article)The gas-to-liquid (GTL) process generates considerable amounts of wastewater that are highly acidic and characterized by its high chemical oxygen demand (COD) content, due to the presence of several organic pollutants, ... -
Isolation of bacterial strains from compost teas and screening of their PGPR properties on potato plants
( Springer Science and Business Media Deutschland GmbH , 2022 , Article)The beneficial effect of compost and compost tea on plant growth and protection is mainly associated with the microbial diversity and the presence of bacteria with plant growth-promoting effect. PGPR are considered as ... -
Isolation of bacterial strains from compost teas and screening of their PGPR properties on potato plants
( Springer , 2022 , Article)The beneficial effect of compost and compost tea on plant growth and protection is mainly associated with the microbial diversity and the presence of bacteria with plant growth–promoting effect. PGPR are considered as ... -
Isolation, identification and biodiversity of antiscalant degrading seawater bacteria using MALDI-TOF-MS and multivariate analysis
( Elsevier B.V. , 2019 , Article)Seawater reverse osmosis (SWRO) is a commonly used desalination technique owing to its lesser environmental and economic impacts as compared to thermal desalination techniques. Antiscalants are used in SWRO to reduce ... -
Isolation, screening and activity of hydrocarbon-degrading bacteria from harsh soils
( Avestia Publishing , 2016 , Conference Paper)The study of microbial communities in relation to their ecology, interaction, and genetics must be covered in Qatar with special soil, weather and water. Microorganisms of an environment never having been exposed to such ... -
Isothermal crystallization kinetics and morphology of double crystalline PCL/PBS blends mixed with a polycarbonate/MWCNTs masterbatch
( MDPI AG , 2019 , Article)In this work, the 70/30 and 30/70 w/w polycaprolactone (PCL)/polybutylene succinate (PBS) blends and their corresponding PCL/PBS/(polycarbonate (PC)/multiwalled carbon nanotubes (MWCNTs) masterbatch) nanocomposites were ... -
It's just not cricket: what we can learn about Qatar's sports strategy by comparing the FIFA World Cup with other mass-participation sports
( Gulf Studies center - College of Arts & Sciences - Qatar University , 2022 , Conference Paper)This paper sheds new light on the motivations and expectations of Qatar's hosting of FIFA 2022 Men's World Cup by comparing football with another popular sport in the country: cricket. In order to understand the particularities ... -
An iterative cyclic tri-strategy hybrid stochastic fractal with adaptive differential algorithm for global numerical optimization
( Elsevier Inc. , 2023 , Article)Many real-life problems can be formulated as numerical optimization problems. Such problems pose a challenge for researchers when designing efficient techniques that are capable of finding the desired solution without ... -
Joint replenishment model for multiple products with substitution
( Elsevier Inc. , 2016 , Article)We extend the classical economic order quantity model to address the joint replenishment of multiple products under substitution. The proposed model optimizes ordering quantities for each product under substitution effects ... -
Jointly optimized ensemble deep random vector functional link network for semi-supervised classification
( Elsevier Ltd , 2022 , Article)Randomized neural networks have become more and more attractive recently since they use closed-form solutions for parameter training instead of gradient-based approaches. Among them, the random vector functional link network ... -
A jojoba (Simmondsia chinensis) seed cake extracts express hepatoprotective activity against paracetamol-induced toxicity in rats
( Elsevier , 2022 , Article)This study aimed to investigate the hepatoprotective activity of jojoba seed cake extracts against an acute paracetamol (PC) intoxication. Two aqueous extracts from jojoba (Simmondsia chinensis) seed cake, a simmondsin-rich ... -
Karyotype of Palaemon khori (Decapoda:Palaemonidae)
( Universite de Paris VI , 2015 , Article)The diploid number and karyotype of the palaemonid shrimp Palaemon khori (Decapoda: Palaemonidae) were determined for the first time, presenting 2n = 96 and comprising 26 metacentric, 7 submetacentric, 12 subtelocentric ... -
Key applications and potential limitations of ionic liquid membranes in the gas separation process of CO2, CH4, N2, H2 or mixtures of these gases from various gas streams
( MDPI AG , 2020 , Article Review)Heightened levels of carbon dioxide (CO2) and other greenhouse gases (GHGs) have prompted research into techniques for their capture and separation, including membrane separation, chemical looping, and cryogenic distillation. ... -
Key determinants of SMEs’ export performance: a resource-based view and contingency theory approach using potential mediators
( Emerald Publishing Limited , 2020 , Article)Purpose: Various barriers discourage small and medium-sized enterprises (SMEs) from entering or expanding their export activities in the international markets, especially SMEs in emerging markets. The purpose of this study ... -
Key Issues for Long Term Climate Policy Design in Gulf Countries with Focus on Qatar
( Gulf Studies center - College of Arts & Sciences - Qatar University , 2019 , Conference Paper)We analyze the challenges and options of designing an efficient global climate policy for GCC countries. We review the exposure of GCC countries to climate risks and the mitigation and adaptation options at their disposal. ... -
Keynote Speech by Dr. Syed Farid Alatas on Contemporary Significance of Ibn Khaldon
( Ibn Khaldon for Humanities and Social Sciences Center - Qatar University , 2019 , Video)The origin of the video is the keynote of Speaker Prof. Syed Farid Alatas at the International Symposium on Sociology and the Question of Indigenization held by the Ibn Khaldun Center on October 26, 2019 This video ... -
Kinetic and thermodynamic investigation of CO2 adsorption-desorption on polyethyleneimine - Mesoporous silica
( TechConnect , 2016 , Conference Paper)Two CO2 solid sorbents based on polyethyleneimine, PEI (432 and 10k) impregnated into mesoporous silica (MPS) foam were synthesized and tested for CO2 capture. At ambient pressure, the amount of CO2 captured by these solid ... -
Kinetic studies of POSS–DGEBA precursors derived from monoamine functional POSS using dynamic dielectric sensing and nuclear magnetic resonance
( John Wiley and Sons Inc. , 2018 , Article)Incorporation of pre‐reacted monofunctional polyhedral oligomeric silsesquioxane (POSS)–epoxy adducts dramatically improves dispersion of POSS in epoxy–amine networks. The relationship between reaction kinetics and mechanism ... -
Kinetic Study Of The Crystallization Of Lldpe And Wax In Lldpe/wax Phase-change Blends Used For Thermal Energy Storage
( Hamad bin Khalifa University Press (HBKU Press) , 2014 , Conference Paper)Phase-change materials are used to store and release energy through phase changes, be it melting and solidification processes or solid state phase transitions. Among a large number of phase-change materials are paraffin ...