Browsing Research Units by Title
Now showing items 1059-1078 of 4559
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Distinct photodynamics of κ-N and κ-C pseudoisomeric iron(ii) complexes
( Royal Society of Chemistry , 2021 , Article)Two closely related FeII complexes with 2,6-bis(1-ethyl-1H-1,2,3-triazol-4yl)pyridine and 2,6-bis(1,2,3-triazol-5-ylidene)pyridine ligands are presented to gain new insights into the photophysics of bis(tridentate) iron(II) ... -
A distinctive method of online interactive learning in stem education
( MDPI , 2021 , Article)A breakthrough that has occurred in recent years is the emergence of the COVID-19 pandemic. It has affected various sectors of society, including the educational sector. It has prevented students from performing group-oriented ... -
Distinguishing characteristics and usability of graphene oxide based on different sources of graphite feedstock
( Academic Press Inc. , 2019 , Article)Graphene oxide (GO) has gained popularity in scientific research and industry due to its superior properties, which can be controlled by the synthesis method and graphite feedstock. Despite the availability of different ... -
Distributed interference management using Q-Learning in cognitive femtocell networks: New USRP-based implementation
( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference Paper)Femtocell networks have become a promising solution in supporting high data rates for 5G systems, where cell densification is performed using the small femtocells. However, femtocell networks have many challenges. One of ... -
Distributed state estimation, fault detection and isolation filter design for heterogeneous multi-agent linear parameter-varying systems
( Institution of Engineering and Technology , 2017 , Article)In this study, the authors present a new approach for the design of distributed state estimation and fault detection and isolation (FDI) filters for a class of linear parameter-varying multi-agent systems, where the ... -
Distribution and environmental geochemical indices of mercury in tar contaminated beaches along the coast of Qatar
( Elsevier , 2022 , Article)The current study aimed to gauge total mercury (THg) concentration and the environmental geochemical indices in tarmat contaminated sediments and test their presence in targeted coastal species. Layers of hard asphalt-like ... -
The distribution of Blastocystis subtypes in isolates from Qatar
( BioMed Central Ltd. , 2015 , Article)Background: Blastocystis is a common single-celled intestinal parasite of humans and other animals comprising at least 17 genetically distinct small subunit ribosomal RNA lineages (subtypes (STs)), nine of which have been ... -
Distribution, characterization and weathering of tarmats along the west coast of Qatar
( Qatar University Press , 2021 , Poster)Oil residue in the form of tarmat (TM) deposited on the coast of Arabian Gulf countries is a major environmental concern. In this study, the current TM pollution trend along the west coast of Qatar has been assessed and ... -
Distribution, pollution, and human health risks of persistent and potentially toxic elements in the sediments around Hainan Island, China
( Elsevier , 2022 , Article)Human activities have changed the global concentration of potentially toxic elements (PTEs) and significantly altered the marine ecosystem. Little is known about the concentrations of these PTEs around Hainan Island in ... -
Disturbed hemodynamics and oxidative stress interaction in endothelial dysfunction and AAA progression: Focus on Nrf2 pathway
( Elsevier , 2023 , Article Review)Hemodynamic shear stress is one of the major factors that are involved in the pathogenesis of many cardiovascular diseases including atherosclerosis and abdominal aortic aneurysm (AAA), through its modulatory effect on the ... -
Divergent changes of the elevational synchronicity in vegetation spring phenology in North China from 2001 to 2017 in connection with variations in chilling
( Royal Meteorological Society , 2021 , Article)Mountain ecosystems are sensitive to climate change, and vegetation phenology provides one of the best signals to exemplify ecosystem responses to climate change. Vegetation phenology of mountain ecosystems is usually ... -
Diversifying relationships: Russian policy toward GCC
( Palgrave Macmillan , 2021 , Article)The interaction between Russia and Gulf countries represents the story of ups and downs, severe conflicts and sharp warmings that can largely be explained by the permanently changing role and place of each of these players ... -
Diversity and Zonation of Benthic Amphipod Crustaceans Affected by the Mississippi Submarine Canyon in the Northern Gulf of Mexico
( Frontiers Media S.A. , 2022 , Article)Amphipod crustacean diversity and zonation are described from the large Mississippi Canyon that extends from the continental shelf across the entire continental margin. Benthic amphipods were sampled on four cruises from ... -
Diversity of arbuscular mycorrhizal fungi and its chemical drivers across dryland habitats
( Springer , 2021 , Article)Qatar is largely characterized by a hyper-arid climate and low soil fertility which create a stressful soil environment for arbuscular mycorrhizal (AM) fungi. In a study of AM fungal communities and their relationship with ... -
Diversity of benthic macrofauna and physical parameters of sediments in natural mangroves and in afforested mangroves three decades after compensatory planting
( Springer , 2018 , Article)Mangroves in the Arabian Gulf are under pressure from land use change, leading to compensatory planting at sites without natural mangroves. In this study, we examine the potential long-term success of this form of ... -
Divorce Legislation in the Arab Gulf: Trends and Educational Differentials
( Taylor and Francis Group , 2023 , Article)Traditionally, there have been internalized cultural values regarding family cohesion in the Arab region. However, as a result of modernization, rapid economic growth, and social transition, divorce rates have risen gradually ... -
DNA sequencing via Z-shaped graphene nano ribbon field effect transistor decorated with nanoparticles using first-principle transport simulations
( IOP Publishing , 2020 , Article)© 2020 The Author(s). Published by IOP Publishing Ltd on behalf of the Institute of Physics and Deutsche Physikalische Gesellschaft. DNA detection has revolutionized medical and biological research fields. It provides a ... -
DNA-based influenza vaccines as immunoprophylactic agents toward universality
( Future Medicine Ltd. , 2016 , Article Review)Influenza is an illness of global public health concern. Influenza viruses have been responsible for several pandemics affecting humans. Current influenza vaccines have proved satisfactory safety; however, they have ... -
Do changes in ace-2 expression affect sars-cov-2 virulence and related complications: A closer look into membrane-bound and soluble forms
( MDPI , 2021 , Article Review)The SARS-CoV-2 virus utilizes angiotensin converting enzyme (ACE-2) for cell entry and infection. This enzyme has important functions in the renin-angiotensin aldosterone system to preserve cardiovascular function. In ... -
Do changes in current flow as a result of arrays of tidal turbines have an effect on benthic communities?
( Public Library of Science , 2016 , Article)Arrays of tidal energy converters have the potential to provide clean renewable energy for future generations. Benthic communities may, however, be affected by changes in current speeds resulting from arrays of tidal ...