Browsing College of Arts & Sciences by Title
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Distribution and diversity of aquatic insects in different water bodies of Qatar
( Instituto Internacional de Ecologia , 2024 , Article)Aquatic insect fauna remains an important tool for bio indication of environmental disturbance, while maintaining a healthy aquatic system. The purpose of the study was to document and to identify the diversity and ... -
Distribution and ultrastructure of neurosecretory cells in the cerebral ganglion of the earthworm
( Wiley Subscription Services, Inc., A Wiley Company , 1988 , Article)Neurosecretory (Nsy) cells within the cerebral ganglion of Lumbricus terrestris were classified ultrastructurally. The Nsy cells within the subesophageal ganglion, nerve cord ganglion, and the peripheral nervous system ... -
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 Bacillus thuringiensis Strains From Qatar as Shown by Crystal Morphology, d-Endotoxins and Cry Gene Content
( Frontiers Media , 2018 , Article)Bacillus thuringiensis (Bt) based insecticidal formulations have been recognized as one of the most successful, environmentally safe and sustainable method of controlling insect pests. Research teams worldwide are in ... -
Diversity-productivity dependent resistance of an alpine plant community to different climate change scenarios
( Springer Tokyo , 2016 , Article)Here we report from a experiment imposing different warming scenarios [control with ambient temperature, constant level of moderate warming for 3�years, stepwise increase in warming for 3�years, and one season of high level ... -
DMAP-Catalyzed Reaction of Diethyl 1,3-Acetonedicarboxylate with 2-Hydroxybenzylideneindenediones: Facile Synthesis of Fluorenone-Fused Coumarins
( Thieme Gruppe , 2021 , Other)The base-catalyzed reaction of diethyl 1,3-acetonedicarboxylate with 2-hydroxybenzylidene indenediones was studied. The reaction provides a facile and expeditious protocol for the synthesis of natural product inspired ... -
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 ... -
Do inflammasome impact COVID-19 severity?
( Springer , 2021 , Article Review)COVID-19 pandemic has proven to be a dramatic challenge, introducing huge clinical differences that demand extensive investigations. Severe and critical patients may present coagulopathies and microthrombi, which results ... -
Do older adults with multimorbidity meet the recommended levels of physical activity? An analysis of Scottish health survey
( MDPI AG , 2019 , Article)There is a positive association between physical activity (PA) and improved health in older adults. The objective of this study was to assess the prevalence and determinants of meeting recommended levels of PA among older ... -
Docosahexaenoic Acid, a Key Compound for Enhancing Sensitization to Drug in Doxorubicin-Resistant MCF-7 Cell Line.
( MDPI , 2023 , Article)Drug resistance is a well-known and significant obstacle in the battle against cancer, rendering chemotherapy treatments often ineffective. To improve the effectiveness of chemotherapy, researchers are exploring the use ... -
Does allelopathy increase invasiveness of Prosopis juliflora (sw.) Dc in arid land environment?
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Prosopis juliflora is highly recognized for its invasive character and its detrimental effects on different plant species across the world due to possessing allelochemicals. Our field observations indicated high prevalence ... -
Does combined strength training and local vibration improve isometric maximum force? A pilot study
( CIC Edizioni Internazionali s.r.l. , 2017 , Article)Background: The aim of the study was to determine whether a combination of strength training (ST) and local vibration (LV) improved the isometric maximum force of arm flexor muscles. ST was applied to the left arm of the ... -
Doped conductive polymers and single-walled carbon nanotubes as charge storage devices
( Institute of Physics Publishing , 2018 , Article)Single-walled carbon nanotubes (SWCNTs), introduced as nano-fillers, were used as charge storage elements. Organic semiconducting polymers were produced by doping organic plasticizers with nonconductive polymers. The ... -
Doping of Large Ionization Potential Indenopyrazine Polymers via Lewis Acid Complexation with Tris(pentafluorophenyl)borane: A Simple Method for Improving the Performance of Organic Thin-Film Transistors
( American Chemical Society , 2016 , Article)Molecular doping, under certain circumstances, can be used to improve the charge transport in organic semiconductors through the introduction of excess charge carriers which can in turn negate unwanted trap states often ... -
DPSIR framework and sustainable approaches of brine management from seawater desalination plants in Qatar
( Elsevier , 2021 , Article)Brine released from desalination plants is extremely high in salinity and contains various chemicals, which are harmful to the ecosystem. The disposal of brine has raised great concerns for the desalination industry around ... -
Drillstring Failure - Identification, Modeling, and Experimental Characterization
( American Society of Mechanical Engineers (ASME) , 2019 , Article)Drilling is one of the costliest and risky activities in oil and gas industry due to complexity of interactions with downhole formation. Under such conditions, the uncertainty of drillstring behavior increases, and hence, ... -
Drivers of snow leopard poaching and trade in Pakistan and implications for management
( Pensoft Publishers , 2022 , Article)The snow leopard is one of the highly valued species from high-altitude mountain ecosystems of Central and Southeast Asia, including Pakistan. This keystone species is facing a myriad of conventional and emerging threats, ... -
Dry ice-mediated rational synthesis of edge-carboxylated crumpled graphene nanosheets for selective and prompt hydrolysis of cellulose and eucalyptus lignocellulose under ambient reaction conditions
( Royal Society of Chemistry , 2020 , Article)Edge-selectively carboxylated graphene (ECG) crumpled nanosheets are of great importance in potential applications; however, their catalytic activity towards biomass hydrolysis is not yet highlighted. Herein, we rationally ... -
Du riz et de l'huile : Un ordre de réquisition à Rosette durant l'expédition française en Égypte
( Paris ,Collège De France , 2023 , Article)Cette étude consiste en une analyse d’un ordre de réquisition de produits alimentaires imposée par l’armée d’Orient en août 1799 aux habitants de Rosette. Il s’agit d’un document remarquable qui fait partie du corpus des ... -
Dual Imprinted Polymer Thin Films via Pattern Directed Self-Organization
( American Chemical Society , 2017 , Article)Synthetic topographically patterned films and coatings are typically contoured on one side, yet many of nature's surfaces have distinct textures on different surfaces of the same object. Common examples are the top and ...