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السجلات المعروضة 19835 -- 19854 من 53183
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PERCEPTIONS OF UNDERGRADUATE STUDENTS, LECTURERS, AND LAB ASSISTANTS TOWARDS THE USE OF ONLINE LABORATORY IN SCIENCE EDUCATION DURING COVID-19 PANDEMIC
(2021 , Master Thesis)The current study investigates the perceptions towards online science laboratory approach in Qatar. It aims to shed the light on the undergraduate students', lecturers' and lab assistants' perceptions towards online science ... -
Perceptions of Who is in the Healthcare Team? A Content Analysis of Social Media Posts during COVID-19 Pandemic
( Qatar University Press , 2020 , Poster)Social media posts can be used to explore public perceptions of interprofessional teams and healthcare professionals. The aim of this study was to use social listening technique to explore unfiltered public perceptions of ... -
Perceptions of who is in the healthcare team? A content analysis of social media posts during COVID-19 pandemic
( Taylor and Francis Ltd. , 2020 , Article Review)Social media posts can be used to explore public perceptions of interprofessional teams and healthcare professionals. The aim of this study was to use social listening technique to explore unfiltered public perceptions of ... -
Perceptions of Women's Roles between Traditionalism and Modernity in Qatar
( Taylor and Francis Ltd. , 2019 , Article)Women's participation in public life in the Arabian Peninsula is affected by tradition and limits their opportunities for socio-economic development. This study focuses on the social structures that impose gender inequality. ... -
Perceptions of Yemeni physicians about interactions with medical representatives
( Blackwell Publishing Ltd , 2017 , Article)Objective: Interaction between physicians and medical representatives (MR) is an area of controversy, which discussed heavily in the literature. However, the perspectives of physicians on the extent and composition of ... -
Perceptions of Yemeni physicians about sources of drug information and factors predicting their choices
( Open Science Publishers LLP , 2021 , Article)High-quality information is a necessary prerequisite for an optimum prescribing decision that enhances patient healthcare outcomes. Therefore, the purpose of this study was to identify the main sources of information used ... -
Perceptual Dialectology of the Arab World: A Principal Analysis
( Georgetown University Press , 2014 , Article)This study discusses perceptions of variation across dialects of Arabic in the Arab world as revealed through a perceptual dialectology map task. On a map of the Arab world, female undergraduate students at Qatar University ... -
Percutaneous Mitral-Valve Intervention for Secondary Mitral Regurgitation: Data From Real-Life
( Elsevier , 2023 , Article Review)Many questions were raised due to the divergent results between cardiovascular outcomes assessment of the MitraClip percutaneous therapy for heart failure patients with functional mitral regurgitation (COAPT) and multicenter ... -
Percutaneous nephrolithotomy in supine position with less than 24-hour hospital stay; a single-center experience
( Taylor & Francis , 2023 , Article)Objectives: To report our initial experience of day care percutaneous nephrolithotomy (PCNL) with early hospital discharge within less than 24 hours of the procedure. Patients and Methods: The files of patients treated ... -
Perfluoroctylsilane grafted Ti3C2X-based hydrogel liquid marble for controlled movement, self-assembly, light-induced release, and water evaporation system
( Elsevier , 2023 , Article)In this study, a stable and highly hydrophobic perfluoroctylsilane grafted Ti3C2X (PFMXene) possessing repeatable and stable photothermal behavior was applied for fabrication of liquid marble (LM) and hydrogel-based LM. ... -
Perfluorooctanoic Acid and Perfluorooctane Sulfonate in Human Milk: First Survey from Lebanon
( MDPI , 2023 , Article)Human milk is the primary source of nutrition for infants in their first year of life. Its potential contamination with perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS), a group of toxic man-made chemicals, ... -
A perforated electrode design for passivation reduction during the electrochemical treatment of produced water
( Elsevier , 2020 , Article)Produced water refers to the water that is generated when oil and gas are extracted from the ground, and it usually includes the natural water layer within the reservoir (formation water) as well as the injected water. The ... -
Performance analysis and control of a novel 7-level active neutral point clamped (ANPC) topology
( John Wiley and Sons Inc , 2023 , Article)This paper introduces a novel 7-level active neutral-point clamped (ANPC) switched capacitor multilevel inverter (SCMLI) with voltage-boosting capabilities. The proposed converter can produce seven levels and a voltage ... -
Performance analysis and enhancement of brain emotion-based intelligent controller and its impact on PMBLDC motor drive for electric vehicle applications
( Taylor and Francis Ltd. , 2022 , Article)Growing awareness of electric vehicles insists on the necessity of Permanent Magnet Brushless Direct Current Motor (PMBLDCM) worldwide. This paper involves building a simulation model of the complete PMBLDCM drive system ... -
Performance Analysis and Optimization for the MAC Protocol in UAV-Based IoT Network
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Article)Unmanned aerial vehicles (UAVs) have played an important role in air-ground integration network. Especially in Internet of Things (IoT) services, UAV equipped with communication equipments is widely adopted as a mobile ... -
Performance analysis for truncated ARQ based DSFBC-CO-OFDM communication scheme
( IEEE , 2011 , Conference Paper)We develop and analyze an ARQ (Automatic Repeat reQuest) based distributed space-frequency block code-orthogonal frequency division multiplexing protocol for cooperative communications (DSFBC-CO-OFDM). At PHY layer, space ... -
Performance analysis of a cell-based call admission control scheme for QoS support in multimedia wireless networks
( John Wiley & Sons, Ltd. , 2010 , Article)Next generation wireless communication systems, including 3G and 4G technologies, are envisaged to support more mobile users and a variety of high-bandwidth multimedia services. Different multimedia services have diverse ... -
Performance Analysis of a Fileserver in an ATM Network
( Qatar University , 2004 , Article)ATM continues to gain acceptance as a unifying communications technology for traffic of both digital and analog origins. The main characteristic of an ATM network is its discrete time (slotted) operation and fixed-length ... -
Performance Analysis of a Three-to-Five Phase Dual Matrix Converter Based on Space Vector Pulse Width Modulation
( Institute of Electrical and Electronics Engineers Inc. , 2019 , Article)In this paper, space vector pulse width modulation (SVPWM)-based algorithms for a five-phase open-end load fed from dual matrix converter (DMC) have been proposed. In the presented modulation methods, the reference output ... -
Performance analysis of air source heat pump space heating system with an adaptive control for supply water temperature
( Elsevier Ltd , 2022 , Article)Air source heat pumps (ASHPs) have been widely used for heating in buildings. While in practice, the setting value of its supply water temperature is always far higher than the theoretical value owing to the delayed ...