تصفح Research Units حسب العنوان
السجلات المعروضة 2891 -- 2910 من 4709
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Oil Spill Index (OSI) to Sentinel-2 satellite data: QU in International Contribution
( Qatar University Press , 2021 , Poster)An Oil Spill Index (OSI = (B3+B4)/B2) was developed and applied to Sentinel-2 optical satellite data of the European Space Agency (ESA) to map marine oil spills using spectral absorption characters of spectral bands of the ... -
Oil-polluted groundwater in central and west Iraq as indicator of potential new hydrocarbon plays
( Taylor and Francis Ltd. , 2023 , Article)The old land of Iraq is characterized by the presence of many oil seepages that date back to the Babylonian time. During the last few years, the country has witnessed an accelerating pattern of earthquakes that may have ... -
Oil-Water Separation by ZnO-Based Superhydrophobic PU Sponges
( Wiley-VCH Verlag , 2020 , Article)Continuous oil–water separation is not only an important topic for scientific research but also for practical applications to clean oil from industrial oily wastewater and oil-spill pollution. In this work, polyurethane ... -
Oilfield scale formation and chemical removal: A review
( Elsevier B.V. , 2018 , Article Review)In oil and gas industry operations, scale deposition on the surface and subsurface production equipment can cause different problems such as formation damage, loss in production, pressure reductions, and premature failure ... -
Oleic acid-grafted chitosan/graphene oxide composite coating for corrosion protection of carbon steel
( Elsevier Ltd , 2016 , Article)An anticorrosion coating film based on the formation of nanocomposite coating is reported in this study. The composite consisted of chitosan (green matrix), oleic acid, and graphene oxide (nano filler). The nanocomposite ... -
Olive agroforestry shapes rhizosphere microbiome networks associated with annual crops and impacts the biomass production under low-rainfed conditions
( Frontiers Media , 2022 , Article)Agroforestry (AF) is a promising land-use system to mitigate water deficiency, particularly in semi-arid areas. However, the belowground microbes associated with crops below trees remain seldom addressed. This study aimed ... -
Olive Leaves Extract and Oleuropein Improve Insulin Sensitivity in 3T3-L1 Cells and in High-Fat Diet-Treated Rats via PI3K/AkT Signaling Pathway
( Hindawi Limited , 2023 , Article)Olive leaves extracts are known to exert potential pharmacological activities especially, antidiabetic and antiobesity. This study explores the anti-insulin resistant effect of olive leaves extracts and oleuropein in 3 ... -
Olive oil by‑product’s contribution to the recovery of phenolic compounds from microalgal biomass: biochemical characterization, anti‑melanogenesis potential, and neuroprotective effect
( Springer , 2022 , Article)Recently, the use of microalgae in the treatment of olive mill wastewater as a safe method for reducing pollutants has gained more attention. However, the contribution of such by-product to the improvement of the pharmacological ... -
Oman's independent foreign policy
( Taylor and Francis , 2016 , Book chapter)This chapter examines and explains the nature of Oman’s foreign policy. In doing so, it will apply three levels of foreign policy analysis, including the societal level, the state level, and the system level. The chapter ... -
Oman: Food Security in Times of Uncertainty
( Gulf Studies Center , 2020 , Article)As the protest illustrated, the affordability of food has been an issue of concern among Omani citizens. As a result of its arid climate, the salinity of the country's soil and water scarcity, there are restrictions to the ... -
On Minimizing TCP Traffic Congestion in Vehicular Internet of Things (VIoT)
( Springer Nature , 2022 , Article)The performance of end-to-end wireless link congestion control algorithm in the vehicular internet of things network is plagued by the inherent limitations of spurious rate control initiation, slow convergence time, and ... -
On secure communication over the Z-Channel
( Institute of Electrical and Electronics Engineers Inc. , 2017 , Conference Paper)The discrete memoryless Z-Channel (DM-ZC) with a confidential cross-message is considered. Three messages are transmitted; encoder 1 transmits one message to be decoded by decoder 1. Encoder 2 transmits two messages, the ... -
On the scarcity and promise of survey-based studies of international relations and security affairs in the Middle East
( Routledge , 2023 , Article)Despite a dramatic increase in the availability and quality of public opinion data from the Middle East and North Africa (MENA) since the Arab uprisings of 2011, the use of surveys to study international relations and ... -
On the synergistic corrosion inhibition and polymer healing effects of polyolefin coatings modified with Ce-loaded hydroxyapatite particles applied on steel
( Elsevier Ltd , 2021 , Article)pH-sensitive hydroxyapatite particles were loaded with cerium ions (Ce-HAP) and incorporated into polyolefin coatings applied on carbon steel. The Ce-modified hydroxyapatite particles were characterized by scanning electron ... -
Oncolytic viruses as nanomedicines against the tumor microenvironment
( AMG Transcend Association , 2021 , Article Review)The tumor microenvironment is best described as the battleground for fighting cancer and the host immune system. Contrary to primitive beliefs that cancer growth and progression are solely dependent on cancer cells, recent ... -
Oncoproteins of High-Risk HPV and EBV Cooperate to Enhance Cell Motility and Invasion of Human Breast Cancer Cells Erk1/Erk2 and β-Catenin Signaling Pathways.
( Frontiers Media , 2021 , Article)Breast cancer is a leading cause of death in women around the world. Most breast cancer-related deaths are a result of complications from the metastatic spread. Several recent studies reported that high-risk human ... -
One minute microwave synthesis of [O2N-Ph-CH2-Py = N(Me)2]+[Cl]− ionic liquid: XRD/HSA-interactions, physicochemical, optical, thermal and A DFT/TD-DFT analysis
( Elsevier , 2021 , Article)1-(4-nitrobenzyl)-4-dimethylaminopyridinium chloride, [O2N-Ph-CH2-Py = N(Me)2]+[Cl]−, was made available in good yield and within one minute using microwave assisted reaction (MW). The ionic liquid product resonance structure ... -
One Year of SARS-CoV-2: Genomic Characterization of COVID-19 Outbreak in Qatar
( Frontiers , 2021 , Article)Qatar, a country with a strong health system and a diverse population consisting mainly of expatriate residents, has experienced two large waves of COVID-19 outbreak. In this study, we report on 2634 SARS-CoV-2 whole-genome ... -
A One-button Activation System for Enhanced Root Canal Irrigation
( Qatar University Young Scientists Center - Qatar University , 2024 , Conference Paper)Activation of irrigants is a crucial cornerstone in endodontic therapy, with the objective of eradicating challenging microbial biofilms within the intricate dental canals. Despite the advancements in root canal treatment, ... -
One-dimensional facile growth of MAPbI3 perovskite micro-rods
( Royal Society of Chemistry , 2019 , Article)One-dimensional microrods (4–5 mm) of PbI2 and CH3NH3PbI3 (MAPbI3) with unique structural and morphological properties have been grown at room temperature. X-ray diffraction (XRD) patterns of both types of micro-rods exhibit ...
