تصفح College of Arts & Sciences حسب العنوان
السجلات المعروضة 3004 -- 3023 من 3321
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Using learning analytics to assess student learning in online courses
( University of Wollongong , 2016 , Article)Learning analytics can be used to enhance student engagement and performance in online courses. Using learning analytics, instructors can collect and analyze data about students and improve the design and delivery of ... -
Using Texts Which Address Local Issues to Create a Discursive Space within an Undergraduate Writing Course
( Routledge , 2019 , Article)This study explores whether collaboratively writing about local issues would enable learners to deepen their understanding of their relationship with their own social context. A discursive space within an English for ... -
Using Zebrafish for Investigating the Molecular Mechanisms of Drug-Induced Cardiotoxicity
( Hindawi Publishing Corporation , 2018 , Article)Over the last decade, the zebrafish (Danio rerio) has emerged as amodel organismfor cardiovascular research.Zebrafish have several advantages over mammalian models. For instance, the experimental cost of using zebrafish ... -
Utilization of 7-chloro-4-nitrobenzo-2-oxa-1,3-diazole (NBD-Cl) for spectrochemical determination of L-ornithine: A multivariate optimization-assisted approach
( Royal Society of Chemistry , 2019 , Article)A simple and highly sensitive univariate calibration strategy based on ultraviolet-visible (UV-Vis) absorption spectroscopy and assisted by multivariate screening and optimization was utilized for the determination of ... -
Utilization of nano-olive stones in environmental remediation of methylene blue from water 03 Chemical Sciences 0306 Physical Chemistry (incl. Structural)
( Springer , 2020 , Article)Background: The use of agricultural waste as a low-cost adsorbent for the removal of hazardous methylene blue (MB) from aqueous solution was investigated. In this research, the potentiality of using black nano olive stones ... -
Utilization of nitrogen-rich agricultural waste streams by microalgae for the production of protein and value-added compounds
( Elsevier B.V. , 2023 , Article)Current food and feed production practices via agricultural processes generate waste streams often rich in nitrogen. Conversion of the nitrogen in agricultural waste into valuable products would prevent environmental ... -
Utilization of simulated patients to assess diabetes and asthma counseling practices among community pharmacists in Qatar
( Springer Netherlands , 2017 , Article)Background Patient counseling is one of the most important services a pharmacist can provide to patients. Studies have shown that counseling provided by pharmacists may prevent medication related problems and improve ... -
Utilization of symmetric electrode materials in energy storage application: A review
( John Wiley and Sons Ltd , 2022 , Article Review)The development of efficient energy storage systems is an important field of research in the modern era where fossil fuels are headed toward. depletion. The invention of batteries is regarded as one of the most significant ... -
Uv-l/sulfite advanced reduction process as an efficient method for chlorate reduction in water
( Desalination Publications , 2021 , Article)The efficient reduction of disinfection by-products (DBPs) is currently a major challenge in water treatment facilities due to their high toxicity to human health and long-time residence in the environment. In this work, ... -
UV–Vis, IR spectra, mass spectrometry and thermal studies of charge transfer complexes formed in the reaction of 1, 4, 8, 11-tetraazacyclotetradecane with π-electron acceptors
( Elsevier B.V. , 2019 , Article)The solid charge-transfer (CT) molecular complexes formed in the reaction of the electron donor 1,4,8,11-tetraazacyclotetradecane (TACTD) with the π-electron acceptors 2,4,6-tetrafluoro-1,4-benzoquinone (TFQ), 2,3-dichlo ... -
Vacuum structure and PT -symmetry breaking of the non-Hermetian (iϕ3) theory
( American Physical Society , 2017 , Article)In this work, we study the PT -symmetric (iϕ3) theory using the effective action formalism. To test the accuracy of the used technique, we apply it first to the PT -symmetric (−ϕ4) theory, where we reproduce the same results ... -
Validation and cultural adaptation of the Arabic versions of the Mini?Mental status examination - 2 and Mini-Cog test
( Dove Medical Press Ltd. , 2017 , Article)Introduction: The elderly population is increasing around the world, and the prevalence of dementia increases with age. Hence, it is expected that the number of people with dementia will increase significantly in the coming ... -
Validation of a Novel Fluorescent Lateral Flow Assay for Rapid Qualitative and Quantitative Assessment of Total Anti-SARS-CoV-2 S-RBD Binding Antibody Units (BAU) from Plasma or Fingerstick Whole-Blood of COVID-19 Vaccinees
( MDPI , 2022 , Article)Background: Limited commercial LFA assays are available to provide a reliable quantitative measurement of the total binding antibody units (BAU/mL) against the receptor-binding domain of the SARS-CoV-2 spike protein (S-RBD). ... -
Validation of Novel Transcriptional Targets that Underpin CD44-promoted breast cancer cell invasion
( Qatar University Press , 2021 , Poster)Introduction: Breast cancer (BC) is the most common cancer worldwide, and metastasis is its worst aspect and the first cause of death. Metastasis is a multistep process, where an invasion is a recurring event. The process ... -
Validation of the Arabic version of the Social Communication Questionnaire
( SAGE Publications Ltd , 2019 , Article)Validated screening and diagnostic tools for autism spectrum disorder for use in Arabic-speaking individuals are scarce. This study validated the Arabic version of the Social Communication Questionnaire. The total study ... -
Validity and reliability of the session-RPE method for quantifying training load in karate athletes
( Edizioni Minerva Medica , 2015 , Article)Aim: Aim of the study was to test the construct validity and reliability of the session rating of perceived exertion (sRPE) method by examining the relationship between RPE and physiological parameters (heart rate: HR and ... -
Validity of the effective potential method to study PT-symmetric field theories
( Elsevier B.V. , 2019 , Article)We calculate the one loop effective potential for the class (-(iϕ)α) of PT-symmetric and non-Hermitian field theories in 0+1 space-time dimensions. To test the method, we showed that for the massless Hermitian ϕ4 theory, ... -
Valorization of palm tree (Phoenix dactylifera L.) leaves from harsh weather climate by silage using endogenous lactic acid bacteria, and application of MALDI-TOF MS for study of populations dynamics
( Elsevier , 2023 , Article)Preservation of green palm leaves by silage preserves them as green feed in addition to the added value of probiotics and prebiotics. In this work, the characterization of fresh palm tree leaves was performed. The isolation ... -
valuation of salt tolerance in selected Qatari halophytes at the two initial growth stages
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Scarcity of water and availability of land for agricultural production are the most environmental issues that facing the (GCC) countries and Qatar one of them. Qatar lies in region which characterized by having high ... -
Vanadium(V) complexes with hydrazides and their spectroscopic and biological properties
( Springer Netherlands , 2017 , Article)The present study explores the synthesis and inhibitory potential of vanadium(V) complexes of hydrazides (1c-12c) against oxidative enzymes including xanthine oxidase and lipoxygenase (LOX). In addition, non-enzymatic ...
