تصفح Research Units حسب العنوان
السجلات المعروضة 1356 -- 1375 من 4726
-
Effects of date palm leaf fiber on the thermal and tensile properties of recycled ternary polyolefin blend composites
( Korean Fiber Society , 2017 , Article)This work investigated the effects of date palm leaf fiber (DPLF) content on the thermal and tensile properties; and morphology of compatibilized polyolefin ternary blend. Recycled polyolefin ternary blend consisting of ... -
The effects of environmental innovations on CO2 emissions: Empirical evidence from Europe
( Elsevier Ltd , 2021 , Article)Environmental innovations are key enablers of transition towards greener economies. Despite their importance, empirical studies examining the effect of green technologies on CO2 emissions are still limited. Using an ... -
Effects of estrogen on Survival and Neuronal Differentiation of adult human olfactory bulb neural stem Cells Transplanted into Spinal Cord Injured Rats
( Cold Spring Harbor Laboratory Press , 2019 , Article)In the present study we developed an excitotoxic spinal cord injury (SCI) model using kainic acid (KA) to evaluate of the therapeutic potential of human olfactory bulb neural stem cells (h-OBNSCs) for spinal cord injury ... -
Effects of flow on scales formation in a CO2saturated brine environment
( Electrochemical Society Inc. , 2016 , Conference Paper)A significant amount of literature exists demonstrating the effect of CO2 on corrosion scale formation under non-flow conditions. However, literature available on the effects of flow on the nature and protectivity of ... -
The Effects of Gum Acacia on the Composition of the Gut Microbiome and Plasma Levels of Short-Chain Fatty Acids in a Rat Model of Chronic Kidney Disease
( Frontiers Media , 2020 , Article)Chronic kidney disease (CKD) may be fatal for its victims and is an important long-term public health problem. The complicated medical procedures and diet restrictions to which patients with CKD are subjected alter the gut ... -
Effects of incorporating pine-woodchip biochar with reduced NP fertilizer on calcareous soil characteristics, organic carbon, NPK availability, and maize productivity
( Elsevier , 2023 , Article)Purpose: One of the successful and sustainable methods to restore low-fertility soils over the past few decades has been the integrated effect of biochar made from various feedstocks and chemical fertilizers. However, the ... -
The Effects Of Individual Entrepreneurial Orientation and Self-Efficacy Dimensions On Project Performance Among University Students
( World Scientific , 2023 , Article)The literature on corporate entrepreneurship has discussed the role of entrepreneurship orientation (EO) and self-efficacy in enhancing venture creation and a firm's growth. In contrast, the effect of EO and self-efficacy ... -
Effects of microplastics’ physical and chemical properties on aquatic organisms: State-of-the-art and future research trends
( Elsevier , 2023 , Article)Microplastics (MPs) pose a global threat to marine ecosystems, little is known about the factors that influence their bioavailability. Microplastics have the ability to adsorb contaminants from the environment, as well as ... -
Effects of microstructures on hydrogen induced cracking of electrochemically hydrogenated double notched tensile sample of 4340 steel
( Elsevier Ltd , 2016 , Article)Quantitative fractographic characteristics of 4340 steel is demonstrated for a grain size range of 10-100 ?m and hardness range of 41-52 HRC. Double-notched tensile samples were electrochemically charged in-situ with ... -
Effects of Pipe Rotation on the Performance of Fibrous Fluids in Horizontal Well Cleanout
( Society of Petroleum Engineers (SPE) , 2022 , Conference Paper)The deposition of rock cuttings is a problem commonly faced during drilling, completion, and intervention operations. Using polymer-based fluids is a common technique to improve horizontal downhole cleaning. However, these ... -
Effects of potassium hydroxide and aluminum oxide on the performance of a modified solvay process for CO2 capture: A comparative study
( John Wiley and Sons Ltd , 2021 , Article)In a previous work, the overall performance of modified Solvay process was investigated in the absence of ammonia, where carbon dioxide and brine treatments were accomplished in a single reaction and in the presence of ... -
Effects of Previous Infection and Vaccination on Symptomatic Omicron Infections.
( Massachusetts Medical Society , 2022 , Article)The protection conferred by natural immunity, vaccination, and both against symptomatic severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection with the BA.1 or BA.2 sublineages of the omicron (B.1.1.529) ... -
Effects of previous infection, vaccination, and hybrid immunity against symptomatic Alpha, Beta, and Delta SARS-CoV-2 infections: an observational study
( Elsevier , 2023 , Article)BackgroundProtection against SARS-CoV-2 symptomatic infection and severe COVID-19 of previous infection, mRNA two-dose vaccination, mRNA three-dose vaccination, and hybrid immunity of previous infection and vaccination ... -
The Effects of Religiosity and Social Capital on Civic Engagement in Qatar
( Springer Verlag , 2017 , Article)Few studies have examined the role of religiosity and social capital on civic engagement in the context of a Muslim country. In this paper, we explore the impact of religiosity and social capital on charitable donations ... -
Effects of rutile-TiO2 nanoparticles on accelerated weathering degradation of poly(Lactic Acid)
( MDPI AG , 2020 , Article)The effect of accelerated weathering on poly(lactic acid) (PLA) and a PLA nanocomposite with rutile titanium (IV) dioxide (rutile-TiO2) was investigated. The accelerated weathering test applied consecutive steps of ultraviolet ... -
Effects of salinity and ascorbic acid on growth, water status and antioxidant system in a perennial halophyte
( Oxford University Press , 2015 , Article)Salinity causes oxidative stress in plants by enhancing production of reactive oxygen species, so that an efficient antioxidant system, of which ascorbic acid (AsA) is a key component, is an essential requirement of ... -
The Effects of Salinity and Genotype on the Rhizospheric Mycobiomes in Date Palm Seedlings.
( MDPI , 2024 , Article)Salinity severely affects the health and productivity of plants, with root-associated microbes, including fungi, potentially playing a crucial role in mitigating this effect and promoting plant health. This study employed ... -
Effects of SARS-CoV-2 Alpha, Beta, and Delta variants, age, vaccination, and prior infection on infectiousness of SARS-CoV-2 infections
( Frontiers Media , 2022 , Article)In 2021, Qatar experienced considerable incidence of SARS-CoV-2 infection that was dominated sequentially by the Alpha, Beta, and Delta variants. Using the cycle threshold (Ct) value of an RT-qPCR-positive test to proxy ... -
Effects of sodium carbonate addition, heat and agitation on swelling and rheological behavior of Ca-bentonite colloidal dispersions
( Elsevier Ltd , 2017 , Article)The effects of the addition of sodium carbonate (Na2CO3) and the subsequent simultaneous heating and stirring on the rheological behavior of Ca-bentonite colloidal dispersions have been investigated in this study. Ca-bentonite ... -
The Effects of Spirulina Supplementation on Cardiometabolic Risk Factors: A Narrative Review
( Taylor & Francis , 2024 , Article)Spirulina (Arthrospira platensis) is a cyanobacterium associated with multiple health benefits. Cardiometabolic diseases such as cardiovascular disease, nonalcoholic fatty liver disease, and diabetes are prevalent yet ...
