تصفح College of Arts & Sciences حسب العنوان
السجلات المعروضة 1384 -- 1403 من 3321
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Hydrogen Atom and Equivalent Form of the Levy-Leblond Equation
( Institute of Physics Publishing , 2017 , Article)We discuss the equivalent form of the Levy-Leblond equation such that the nilpotent matrices are two-dimensional. We show that this equation can be obtained in the non-relativistic limit of the (2+1)-dimensional Dirac ... -
Hydromagnetic couple-stress nanofluid flow over a moving convective wall: OHAM analysis
( Elsevier Ltd , 2016 , Article)This communication presents the magnetohydrodynamics (MHD) flow of a couple-stress nanofluid over a convective moving wall. The flow dynamics are analyzed in the boundary layer region. Convective cooling phenomenon combined ... -
Hydrophobic guest mediated micellization and demicellization of rationally designed amphiphilic poly(organophosphazene) for efficient drug delivery
( American Scientific Publishers , 2016 , Article)Recently, biocompatible and amphiphilic poly(organophosphazene) (PPZ) has been suggested as a drug delivery carrier since it can be easily modified to achieve desired chemical properties. In this work, we newly designed a ... -
Hypolithic cyanobacteria colonization of quartz at South Desert
( Science Publications , 2014 , Article)Hypolithic microbial communities (found underneath rocks) were encountered in the southern desert of Qatar where quartz rocks are ubiquitous and are a substrate for hypoliths. These hypoliths thrive where extreme temperature, ... -
Hypoxia in the central Arabian Gulf Exclusive Economic Zone (EEZ) of Qatar during summer season
( Elsevier , 2015 , Article)Abstract One of the most fascinating and unexpected discoveries during the Qatar University Marine Expeditions to the marine Exclusive Economic Zone (EEZ) of Qatar in 2000–2001, was the detection of a hypoxic water layer ... -
Hypoxic Air Inhalation and Ischemia Interventions Both Elicit Preconditioning Which Attenuate Subsequent Cellular Stress In vivo Following Blood Flow Occlusion and Reperfusion.
( Frontiers Media , 2017 , Article)Ischemic preconditioning (IPC) is valid technique which elicits reductions in femoral blood flow occlusion mediated reperfusion stress (oxidative stress, Hsp gene transcripts) within the systemic blood circulation and/or ... -
Ideational Factors in Turkey’s Alignment with Qatar and Their Impact on Regional Security
( Routledge , 2021 , Article)Turkey and Qatar have developed exceptionally cordial relations and aligned their foreign policies on many regional issues. In the 2017 Gulf crisis, despite the risk of incurring material losses and sacrificing relations ... -
Identification and overcome of limitations of weathered oil hydrocarbons bioremediation by an adapted Bacillus sorensis strain
( Academic Press , 2019 , Article)Because of the high production of oil and gas in Qatar, the likelihood of oil spill occurrence is most probably susceptible to happen. Contaminated soil treatment is very expensive. Cost effective mechanisms are investigated ... -
Identification of phenolic compounds by HPLC/MS and in vitro evaluation of the antioxidant and antimicrobial activities of Ceratonia siliqua leaves extracts
( Academic Jounals , 2015 , Article)Ceratonia siliqua is a typical plant of the Mediterranean area, which is mainly used as animal and human food and in folk medicine for treating some diseases such as antidiarrheal and diuretic. The present study was planned ... -
Identifying and Explaining Public Preferences for Renewable Energy Sources in Qatar
( MDPI , 2022 , Article)As a major natural gas and oil producer, Qatar has made significant strides towards its energy transition. This paper uses a survey research design with statistical tests to investigate citizens’ preferences for a wide ... -
Identifying priority landscapes for conservation of snow leopards in Pakistan
( Public Library of Science , 2020 , Article)Pakistan's total estimated snow leopard habitat is about 80,000 km2 of which about half is considered prime habitat. However, this preliminary demarcation was not always in close agreement with the actual distribution-the ... -
Illegal Fishing and Piracy in the Horn of Africa: The Role of the MENA region
( Oxford University Press (OUP) , 2018 , Book chapter)The Red Sea, Gulf of Aden, and Indian Ocean have always been vital routes for world navigation and traveling. These waters are particularly important for most of the countries in the Middle East and North Africa. This ... -
IMA Genome-F 4: Draft genome sequences of Chrysoporthe austroafricana, Diplodia scrobiculata, Fusarium nygamai, Leptographium lundbergii, Limonomyces culmigenus, Stagonosporopsis tanaceti, and Thielaviopsis punctulata
( International Mycological Association , 2015 , Article)The genomes of Chrysoporthe austroafricana, Diplodia scrobiculata, Fusarium nygami, Leptographium lundbergii, Limonomyces culmigenus, Stagonosporopsis tanaceti, and Thielaviopsis punctulata are presented in this genome ... -
Image encryption scheme for multi-focus images for visual sensors network
( Springer , 2022 , Article)Image fusion is the technique to obtain an image, possessing spatially and spectrally enhanced as compared to the individual high spatial and high spectral images. After obtaining a detailed image, propagation over an ... -
Imageability, familiarity, and age of acquisition ratings for Arabic abstract nouns, abstract verbs and adjectives
( John Benjamins Publishing Company , 2018 , Article)To date, normative psycholinguistics research has mainly focused on establishing norms for producing databases for concrete words using standardized pictures, while abstract words have been subject to much less attention. ... -
Immobilization of heavy metals by microbially induced carbonate precipitation using hydrocarbon-degrading ureolytic bacteria
( Elsevier , 2022 , Article)Crude oil contamination introduces multiple threats to human health and the environment, most of which are from toxic heavy metals. Heavy metals cause significant threats because of their persistence, toxicity, and ... -
Impact assessment of non-indigenous jellyfish species on the estuarine community dynamic: A model of medusa phase
( Academic Press , 2017 , Article)Non-indigenous jellyfish species (NIJS) Blackforida virginica have recently been introduced to the Guadiana Estuary. A modelling approach was used for the assessment of the species-specific impact on the native community, ... -
Impact of CNTs' treatment, length and weight fraction on ordinary concrete mechanical properties
This study investigates the effect of the treatment, length and weight fraction parameters of multi-wall carbon nanotubes (MWCNT) on the mechanical properties of concrete. Mixes with various CNTs’ amounts ranging between ... -
Impact of coatings on the electrochemical performance of LiNi0.5Mn1.5O4 cathode materials: A focused review
( Elsevier Ltd , 2022 , Article Review)The application of Lithium-ion batteries (LIBs) in portable electronics and electric vehicles (EVs) has increased in the past decade. Extended commercialization of LIBs for advanced applications requires the development ... -
Impact of covid-19 on food behavior and consumption in qatar
( MDPI AG , 2020 , Article)The government of Qatar took strong containment measures to prevent the spread of COVID-19 with restrictions on daily living such as social distancing and the closing of businesses and schools. While these measures are ...
