تصفح College of Arts & Sciences حسب العنوان
السجلات المعروضة 3054 -- 3073 من 3324
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Volatile Components of the Phaeophyceae Hormophysa cuneiformis Growing Along Qatar Coasts
( Qatar University , 2007 , Article)The present work deals with the study on volatile compounds from the brown alga Hormophysa cuneiformis collected from the Northwest coast of Qatar on May 2002. Two extraction methods have been used: conventional hydrodistillation ... -
Volatility transmission across currencies and commodities with US uncertainty measures
( Elsevier Inc. , 2016 , Article)This paper uses the Multi-chain Markov Switching model (MCMS) conditioned on US uncertainty measures (VIX, VIX-oil and FSI) to examine the patterns of volatility transmission across the resource, major and safe haven ... -
The vowel system of Qatari Arabic: Evidence for peripheral/non-peripheral distinction between long and short vowels
( Cambridge University Press , 2023 , Article)Arabic has a vowel system with three long and three short monophthongs. One of the parameters that accounts for qualitative differences between long and short vowels across languages is tenseness/laxness of vowels located ... -
Waste audit: Pathway to attain sustainability at Qatar University
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Waste audit has proved to be a valuable first step in development of a viable waste minimization and recycling program. Waste characterization has been successfully used at many educational institutions in the United States ... -
Water resources assessment at El-Arish area, using remote sensing and GIS, North Sinai, Egypt
( IEEE , 2008 , Conference Paper)This research aims at to analyse the pattern and rate of shoreline changes at the El-Arish area during the period 1984-2006, which represents the time at which the El-Arish harbour has affected along the coastline. Detecting ... -
Water reuse: Brackish water desalination using Prosopis juliflora
( Elsevier B.V. , 2020 , Article)Prosopis juliflora is a plant species that have the potential to yield significant environmental and economic benefits. It is used widely as a source of biofuel, food, feed and as an adsorbent in water treatment. In this ... -
Water stress and gibberellic acid effects on growth of fenugreek plants
( Springer Berlin / Heidelberg , 1998 , Article)Fenugreek plant is susceptible to water stress during the vegetative growth stages, since a soil matric potential lower than -0.3 MPa causes substantial reduction in growth parameters such as height, weight and total leaf ... -
Water treatment technologies in removing heavy metal ions from wastewater: A review
( Elsevier , 2022 , Article)The scarcity of clean water resources leads to many scientific and technological advancements in wastewater treatment processes. The recalcitrance of heavy metals in wastewater has been proven to be a challenging concern. ... -
Watermelon rinds as cost-efficient adsorbent for acridine orange: a response surface methodological approach
( Springer Nature , 2023 , Article)In the current investigation, watermelon rinds (WMR) have been utilized as an eco-friendly and cost-efficient adsorbent for acridine orange (AO) from contaminated water samples. Adsorption of AO onto raw (RWM) and thermally ... -
The Way We See It: Poetic-Visual Reciprocity in Egyptian Street Art Since 2011
( Brill , 2022 , Article)This article traces the manifestations of the newly adapted artistic form of “calligraffiti,” or the synthetic braiding of poetry and graffiti on what became known as the “walls of protest” in post-2011 Egypt. This new ... -
Weak and strong convergence theorems for generalized nonexpansive mappings
( Universitatii Al.I.Cuza din Iasi , 2016 , Article)We consider a class of generalized nonexpansive mappings introduced by Karapinar and seen as a generalization of Suzuki (C)-condition. We prove some weak and strong convergence theorems for approximating fixed points of ... -
Weak and strong convergence theorems without some widely used conditions
( Academic Publications, Ltd. , 2010 , Article)We establish weak (strong) convergence of Ishikawa iterates of two asymptotically (quasi-)nonexpansive maps without any condition on the rate of convergence associated with the two maps. Moreover, our weak convergence ... -
Weighted estimates for oscillatory singular integrals
(2013 , Article)We establish uniform bounds for oscillatory singular integrals as well as oscillatory singular integral operators. We allow the singular kernel to be given by a function in the Hardy space H1(Sn-1), while such results were ... -
Weighted estimates for rough parametric Marcinkiewicz integrals
( Korean Mathematical Society , 2007 , Article)We establish a weighted norm inequality for a class of rough parametric Marcinkiewicz integral operators . As an application of this inequality, we obtain weighted inequalities for a class of parametric Marcinkiewicz ... -
Well-Being Before the Arab Spring: Objective vs. Subjective Measurements
( Blackwell Publishing Inc. , 2017 , Article)[No abstract available] -
West Bay Business District in Doha, State of Qatar: Envisioning a Vibrant Transit-Oriented Development
( MDPI , 2021 , Article)In recent decades, Doha, the capital of Qatar, has experienced a large-scale transformation due to globalization and rapid economic growth. Recently, these changes have led to a focus on infrastructural development and ... -
What is a Snow Leopard? Taxonomy, Morphology, and Phylogeny
( Elsevier Inc. , 2016 , Book chapter)The snow leopard is the smallest member of the genus Panthera and is the sister species to the tiger (Panthera tigris). It has a poor fossil record, although a recent discovery in Tibet suggests this lineage could be at ... -
White graphene-cobalt oxide hybrid filler reinforced polystyrene nanofibers for selective oil absorption
( MDPI AG , 2020 , Article)In this work, stable hydrophobic nanocomposites are made from electrospun fibers of polystyrene (PS) containing a hybrid filler combination of (i) hexagonal boron nitride (hBN) and (ii) cobalt oxide (Co3O4) nanomaterials. ... -
Whole-Exome Sequencing in 10 Unrelated Patients with Syndromic Hidradenitis Suppurativa: A Preliminary Step for a Genotype-Phenotype Correlation.
( Karger Publishers , 2022 , Article)The genetics of syndromic hidradenitis suppurativa (HS), an immune-mediated condition associated with systemic comorbidities such as inflammatory bowel diseases and arthritis, has not been completely elucidated. To describe ... -
Why do exercisers with a higher trait self-control experience higher subjective well-being? The mediating effects of amount of leisure-time physical activity, perceived goal progress, and self-efficacy
( Elsevier Ltd , 2018 , Article)A first goal of the present study consisted in examining the interrelationships between trait self-control, amount of leisure-time physical activity (LTPA), goal progress, self-efficacy and subjective well-being. A second ...
