تصفح College of Arts & Sciences حسب العنوان
السجلات المعروضة 2413 -- 2432 من 3262
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Saffron: Perspectives and Sustainability for Active and Intelligent Food Packaging Applications
( Springer , 2023 , Other)Active and intelligent packaging can effectively improve the shelf life and monitor food quality in real-time packaged products without affecting nutritional value. With the growing interest in human health and well-being, ... -
Salicylic acid restricts mercury translocation by activating strong antioxidant defense mechanisms in sweet pepper (Capsicum annum L.)
( Elsevier B.V. , 2023 , Article)Mercury (Hg) availability in soil and its absorption in plants is seriously concerned for plant production and human health. Salicylic acid (SA) is one of the major plant hormones involved in plant growth and development ... -
Salinity Effects on Symbiodinium sp. growth rate in Controlled conditions and produced Biomass Biochemical Characterization
( Qatar University Press , 2021 , Poster)Salinity is an abiotic influencer to the growth and the efficiency of the algal Symbiodinium that coexists in symbiosis with corals. In light of the high salinity conditions that prevail in the Arabian Gulf including the ... -
Salinomycin induces apoptosis and senescence in breast cancer: Upregulation of p21, downregulation of survivin and histone H3 and H4 hyperacetylation
( Elsevier , 2013 , Article)Background In the present study, we investigated the effect of Salinomycin on the survival of three human breast cancer cell lines MCF-7, T47D and MDA-MB-231 grown in adherent culture conditions. Methods Cell viability ... -
Salvia fruticosa Induces Vasorelaxation in Rat Isolated Thoracic Aorta: Role of the PI3K/Akt/eNOS/NO/cGMP Signaling Pathway
( Nature Publishing Group , 2017 , Article)Salvia fruticosa (SF) Mill. is traditionally used for its antihypertensive actions. However, little is known about its pharmacologic and molecular mechanisms of action. Here we determined the effects of an ethanolic extract ... -
Sample Entropy, Univariate, and Multivariate Multi-Scale Entropy in Comparison with Classical Postural Sway Parameters in Young Healthy Adults.
( Frontiers Media , 2017 , Article)The present study aimed to compare various entropy measures to assess the dynamics and complexity of center of pressure (COP) displacements. Perturbing balance tests are often used in healthy subjects to imitate either ... -
Sampling of Multiple Variables Based on Partially Ordered Set Theory
( Iranian Statistical Society , 2021 , Article)We introduce a new method for ranked set sampling with multiple criteria. The method relaxes the restriction of selecting just one individual variable from each ranked set. Under the new method for ranking, units are ranked ... -
SARS-CoV-2 antibody-positivity protects against reinfection for at least seven months with 95% efficacy
( Elsevier , 2021 , Article)Background Reinfection with the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has been documented, raising public health concerns. SARS-CoV-2 reinfections were assessed in a cohort of antibody-positive persons ... -
SARS-CoV-2 does not replicate in HaCaT spontaneously immortalized human keratinocytes: implications for the pathogenesis of COVID-19-associated skin manifestations
( John Libbey Eurotext , 2022 , Article)Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2)-related cutaneous manifestations have been reported [1], however, the direct or indirect role of SARS-CoV-2 infection in their pathophysiology is still debated ... -
SARS-CoV-2 infection hospitalization, severity, criticality, and fatality rates in Qatar
( Nature Research , 2021 , Article)The SARS-CoV-2 pandemic resulted in considerable morbidity and mortality as well as severe economic and societal disruptions. Despite scientific progress, true infection severity, factoring both diagnosed and undiagnosed ... -
SARS-CoV-2 modulates virus receptor expression in placenta and can induce trophoblast fusion, inflammation and endothelial permeability
( Frontiers Media , 2022 , Article)SARS-CoV-2 is a devastating virus that induces a range of immunopathological mechanisms including cytokine storm, apoptosis, inflammation and complement and coagulation pathway hyperactivation. However, how the infection ... -
SARS-CoV-2 RNA Recovery from Air Sampled on Quartz Fiber Filters: A Matter of Sample Preservation?
( MDPI , 2022 , Report)The airborne route of transmission of SARS-CoV-2 was confirmed by the World Health Organization in April 2021. There is an urge to establish standardized protocols for assessing the concentration of SARS-CoV-2 RNA in air ... -
SARS-CoV-2 Short-Time Infection Produces Relevant Cytopathic Effects in Vero E6 Cell Line.
( MDPI , 2021 , Article)Severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2) is mainly transmitted through respiratory droplets from positive subjects to susceptible hosts or by direct contact with an infected individual. Our study ... -
Saudi Arabia–Pakistan Relations: An Age of Uncertainty or Decline?
( SAGE Publications , 2021 , Article)This article aims to analyze the relationship between Pakistan and Saudi Arabia from 2015 when the latter refused to cooperate on the kingdom’s war in Yemen. The relationship can be understood through the dependency theory ... -
Saudi women and Islamic discourse, selected examples of Saudi feminisms
( Brill Academic Publishers , 2016 , Article Review)Saudi women entered the realm of writing and language only half a century ago through the genres of both creative and journalistic prose. In this paper, I shall take the example of four Saudi female writers who represent ... -
Scalable synthesis of mesoporous titania microspheres via spray-drying method
( Academic Press Inc. , 2016 , Article)Mesoporous TiO2 has several potential applications due to its unique electronic and optical properties, although its structures and morphologies are typically difficult to tune because of its uncontrollable and fast sol-gel ... -
Science and Mathematics Education in the GCC Countries
( Science Publishing Group , 2016 , Article)All six countries in the Gulf Cooperation Council (GCC) have developed science and mathematics curriculum standards that focus on the content essential for preparing students to be engaged and productive citizens. A careful ... -
The Scientific Contributions of Arab Scientists to the International Research: a Study of the Indicators for Select Arab Countries
( Blackwell Publishing Ltd , 2009 , Article)Using SCOPUS database, the research productivity of Arab researchers in five countries has been investigated. The analysis included subject, geographical and time range indicators. The relationship between the most published ... -
Screening and identification of a Bacillus thuringiensis strain S1/4 with large and efficient insecticidal activities.
( WILEY-VCH , 2013 , Article)The bacterium Bacillus thuringiensis was recognized for its entomopathogenic activities related to Cry and Cyt proteins forming the δ-endotoxins and some extracellular activities like the vegetative insecticidal proteins ... -
Screening and optimization of samarium-assisted complexation for the determination of norfloxacin, levofloxacin and lomefloxacin in their corresponding dosage forms employing spectrofluorimetry
( Elsevier B.V. , 2019 , Article)Multivariate strategy was applied for setting a fluorescent technique for the determination of three fluoroquinolones: norfloxacin (NOR), levofloxacin (LEV) and lomefloxacin (LOM) in their pure powder and dosage forms. ...
