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السجلات المعروضة 3281 -- 3300 من 4787
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Prevalence of microplastics in the marine waters of Qatar
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)The issue of plastic pollution in the marine environment is of increasing global concern. As plastics typically have an intrinsic durability, water insolubility and slow degradation rates, debris has now become both ... -
Prevalence of microplastics in the marine waters of Qatar
( Elsevier Ltd , 2016 , Article)Microplastics are firmly recognized as a ubiquitous and growing threat to marine biota and their associated marine habitats worldwide. The evidence of the prevalence of microplastics was documented for the first time in ... -
The prevalence of novel psychoactive substances (NPS) use in non-clinical populations: a systematic review protocol
( BioMed Central , 2016 , Article)Background Novel psychoactive substances (NPS) are new narcotic or psychotropic drugs that are not controlled by the United Nations drug convention that may pose a serious public health threat due to their wide availability ... -
Prevalence of Virulence/Stress Genes in Campylobacter jejuni from Chicken Meat Sold in Qatari Retail Outlets
( Public Library of Science , 2016 , Article)Chicken meat from the shelves of supermarkets in Qatar was tested for the presence of Campylobacter spp. and the presence of five virulence genes (htrB, cdtB, clpP, cadF and ciaB) was assessed in isolates. Forty eight ... -
Prevention of barite sag in water-based drilling fluids by a urea-based additive for drilling deep formations
( MDPI , 2020 , Article)Barite sag is a challenging phenomenon encountered in deep drilling with barite-weighted fluids and associated with fluid stability. It can take place in vertical and directional wells, whether in dynamic or static conditions. ... -
Principles and Applicability of Integrated Remediation Strategies for Heavy Metal Removal/Recovery from Contaminated Environments
( Springer , 2022 , Article)Contamination of agricultural soils with heavy metals present lethal consequences in terms of diverse ecological and environmental problems that entail entry of metal in food chain, soil deterioration, plant growth ... -
Privacy preserving computation in cloud using noise-free fully homomorphic encryption (FHE) schemes
( Springer Verlag , 2016 , Conference Paper)With the wide adoption of cloud computing paradigm, it is important to develop appropriate techniques to protect client data privacy in the cloud. Encryption is one of the major techniques that could be used to achieve ... -
A privacy-preserving handover authentication protocol for a group of MTC devices in 5G networks
( Elsevier Ltd , 2022 , Article)Machine Type Communication (MTC) has been emerging for a wide range of applications and services for the Internet of Things (IoT). In some scenarios, a large group of MTC devices (MTCDs) may enter the communication coverage ... -
Privileged but Immobile: Citizenship and Career Path of the Youths of Bicultural Families in Kuwait
( Gulf Studies center - College of Arts & Sciences - Qatar University , 2020 , Conference Paper)This paper aims to depict privilegedness yet immobilities of the youths of bicultural families on their citizenship and career path, particularly on the second generations who have roots of Filipino traits on one side and ... -
PriviPK: Certificate-less and secure email communication
( Elsevier Ltd , 2017 , Article)We introduce PriviPK, an infrastructure that is based on a novel combination of certificateless (CL) cryptography and key transparency techniques to enable e2e email encryption. Our design avoids (1) key escrow and deployment ... -
Probabilistic human health risk assessment of trace elements in ballast water treated by reverse osmosis desalination plants
( Elsevier , 2023 , Article)Very few studies have paid attention to the transport of heavy and toxic metals via ballast water coming from different countries of the world. In the present study, ballast water samples (n = 83) were collected from ships, ... -
Probing into the properties of B4C reinforced nickel phosphorus-based nanocomposite coating
( Elsevier , 2022 , Article)Nickel-based coatings are well known for their good corrosion resistance performance. However, these materials suffer from inferior mechanical properties that limit their wider application. This work investigates the ... -
Probing the fibrillation of lysozyme by nanoscale-infrared spectroscopy
( Taylor and Francis Ltd. , 2021 , Article)Amyloid fibrillation is the root cause of several neuro as well as non-neurological disorders. Understanding the molecular basis of amyloid aggregate formation is crucial for deciphering various neurodegenerative diseases. ... -
Process optimization and method validation for efficient valorization of low- grade coal into humic substances
( Elsevier , 2024 , Article)The exploration of low-grade coal resources and progress in the extraction method of humic substances are the core aims of this study. Ultrasonic and microwave assisted alkali extractions were compared with conventional ... -
Processing and characterization of polyethylene-based composites
( Taylor & Francis , 2015 , Article)Thermoplastic matrix polymer composites have gained commercial success in the semistructural and structural applications. Polyethylene (PE) is one of the most versatile and widely used thermoplastics in the world because ... -
Processing and industrial applications of sustainable nanocomposites containing nanofillers
( Springer International Publishing , 2019 , Book chapter)This book presents emerging economical and environmentally friendly polymer composites that are free of the side effects observed in traditional composites. It focuses on eco-friendly composite materials using granulated ... -
Processing, characterization and modeling of recycled polypropylene/glass fibre/wood flour composites
( Elsevier Ltd , 2014 , Article)Polypropylene (PP) is one of the most common thermoplastic materials in the world. There is a need to recycle the large amount of this used material. To overcome the environmental problems, related to the polymer waste, ... -
Production and characterization of B-glucosidase from Aspergillus niger fermentation: Application for organic fraction of municipal solid waste hydrolysis and methane enhancement. Biotechnology Progress
( American Chemical Society , 2020 , Article)The anaerobic digestion of the organic fraction of municipal solid waste (OFMSW) is currently an attractive treatment process with energy production in the form of bio- gas. Hydrolysis is the rate-limiting step for the ... -
Production and investigation of flexible nanofibers of sPEEK/PVP loaded with RuO2 nanoparticles
( Elsevier , 2021 , Article)Electrospinning technique was employed to fabricate composite nanofibers/nanoparticles of sulfonated polyether ether ketone, polyvinylpyrrolidone, and ruthenium oxide (sPEEK/PVP/RuO2). The samples were synthesized with ... -
Production of biolubricant from renewable feedstocks from Qatar
( Hamad bin Khalifa University Press (HBKU Press) , 2018 , Conference Paper)Due to increase in environmental pollution and decline in petroleum reserves, there is an increase in the demands of developing alternative renewable bio-based products. Petroleum and lubricant manufacturing companies are ...
