Browsing Research Units by Title
Now showing items 1164-1183 of 4987
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Discovery of new genomic regions and candidate genes implicated in the natural variation of barley peduncle length and plant height
( Springer Nature , 2024 , Article)The cereal plant barley (Hordeum vulgare) has high nutritional content and special characteristics that allow it to withstand adverse weather conditions. The peduncle’s developmental properties under dry (drought and heat) ... -
Discrepancy in MALDI-TOF MS identification of uncommon Gram-negative bacteria from lower respiratory secretions in patients with cystic fibrosis
( Dovepress , 2015 , Article)Introduction: Early identification of microbial organisms from respiratory secretions of patients with cystic fibrosis (CF) is important to guide therapeutic decisions. The objective was to compare the accuracy of ... -
Disinformation as cybersecurity: a holistic approach
( Gulf Studies center - College of Arts & Sciences - Qatar University , 2021 , Conference Paper)Definitions of cybersecurity tend to differ on whether to include disinformation or misinformation. This intervention argues that disinformation is an important aspect within the context of critical security. Only a holistic ... -
Dispersion Behaviors of Flare Gases in Different Weather Conditions
( Qatar University Young Scientists Center - Qatar University , 2024 , Conference Paper)Flare gases, consisting of methane and other volatile organic compounds, are byproducts of oil and gas extraction. While flaring serves as a safety measure, it contributes to greenhouse gas emissions and releases pollutants ... -
Dispersion of soft Bi particles and grain refinement of matrix in an Al-Bi alloy by equal channel angular pressing
( Elsevier BV , 2014 , Article)The deformation behavior of a soft particle containing Al-8Bi hypermonotectic alloy during equal-channel angular pressing was studied. The size, shape and distribution of soft Bi particles are substantially modified via ... -
Dissolution kinetics of different inorganic oilfield scales in green formulations
( American Chemical Society , 2020 , Article)Scale mineral deposition is a critical problem that hinders the daily production of oil and gas fields. Chemical removal of these scales, based on the scale type, is common. In this paper, borax and diethylene tremaine ... -
Distinct antibody repertoires against endemic human coronaviruses in children and adults.
( American Society for Clinical Investigation , 2021 , Article)Four endemic human coronaviruses (HCoVs) are commonly associated with acute respiratory infection in humans. B cell responses to these "common cold" viruses remain incompletely understood. Here we report a comprehensive ... -
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 antenna systems for enhanced video transmission in LTE public safety networks
( IGI Global , 2013 , Book chapter)In this chapter, Long Term Evolution (LTE) for public safety is investigated. Particularly, Distributed Antenna Systems (DAS) are studied, and their impact on LTE public safety networks is analyzed. Furthermore, resource ... -
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 ...