Browsing Biological & Environmental Sciences by Title
Now showing items 791-807 of 807
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Vegetative insecticidal protein of Bacillus thuringiensis BLB459 and its efficiency against Lepidoptera
( Elsevier Ltd , 2017 , Article)Bacillus thuringiensis strain BLB459 supernatant showed a promising activity against Lepidopteran pests with extremely damages in the larvae midgut. Investigations of the genes that encode secreted toxin demonstrated that ... -
Vertical distribution and radiological risk assessment of 137Cs and natural radionuclides in soil samples
( Nature Publishing Group , 2019 , Article)The aims of this study were to investigate the vertical distributions of natural radionuclides 232Th, 226Ra and 40K as well as anthropogenic radionuclide 137Cs in soil samples and to analyze the correlation among the ... -
Vertical zonation and functional diversity of fish assemblages revealed by ROV videos at oil platforms in The Gulf
( Blackwell Publishing Ltd , 2017 , Article)An assessment of vertical distribution, diel migration, taxonomic and functional diversity of fishes was carried out at offshore platforms in The (Arabian-Iranian-Persian) Gulf. Video footage was recorded at the Al Shaheen ... -
Vertical zonation and functional diversity of fish assemblages revealed by ROV videos at oil platforms in The Gulf
( Hamad bin Khalifa University Press (HBKU Press) , 2018 , Conference Paper)About one third of the oil and gas extracted worldwide comes from offshore sources. There is currently thousands of large-scale oil and gas platforms spread across the seas and coastal oceans, from the North Sea to the ... -
Vitamin D receptor gene polymorphisms influence on clinical profile and bone mineral density at different skeletal sites in postmenopausal osteoporotic women.
( Wiley , 2023 , Article)Bone remodeling is marked by bone synthesis and absorption balance, and any altered dynamic in this process leads to osteoporosis (OP). The interaction of hormonal, environmental and genetic factors regulate bone metabolism. ... -
Volatility transmission across currencies and commodities with US uncertainty measures
( Elsevier Inc. , 2016 , Article)This paper uses the Multi-chain Markov Switching model (MCMS) conditioned on US uncertainty measures (VIX, VIX-oil and FSI) to examine the patterns of volatility transmission across the resource, major and safe haven ... -
Waste audit: Pathway to attain sustainability at Qatar University
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Waste audit has proved to be a valuable first step in development of a viable waste minimization and recycling program. Waste characterization has been successfully used at many educational institutions in the United States ... -
Water reuse: Brackish water desalination using Prosopis juliflora
( Elsevier B.V. , 2020 , Article)Prosopis juliflora is a plant species that have the potential to yield significant environmental and economic benefits. It is used widely as a source of biofuel, food, feed and as an adsorbent in water treatment. In this ... -
Water stress and gibberellic acid effects on growth of fenugreek plants
( Springer Berlin / Heidelberg , 1998 , Article)Fenugreek plant is susceptible to water stress during the vegetative growth stages, since a soil matric potential lower than -0.3 MPa causes substantial reduction in growth parameters such as height, weight and total leaf ... -
What is a Snow Leopard? Taxonomy, Morphology, and Phylogeny
( Elsevier Inc. , 2016 , Book chapter)The snow leopard is the smallest member of the genus Panthera and is the sister species to the tiger (Panthera tigris). It has a poor fossil record, although a recent discovery in Tibet suggests this lineage could be at ... -
Whole-Exome Sequencing in 10 Unrelated Patients with Syndromic Hidradenitis Suppurativa: A Preliminary Step for a Genotype-Phenotype Correlation.
( Karger Publishers , 2022 , Article)The genetics of syndromic hidradenitis suppurativa (HS), an immune-mediated condition associated with systemic comorbidities such as inflammatory bowel diseases and arthritis, has not been completely elucidated. To describe ... -
Winter thermoregulation of free-ranging Ethiopian hedgehogs (Paraechinus aethiopicus) in Qatar
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Biologists focus on thermoregulation of desert mammals in terms of how they minimise heat gain during hotter months, and put less effort on how they maximise heat gain during cooler months. Heat gain may contribute to ... -
Yeast Volatile Organic Compounds Inhibit Ochratoxin Biosynthesis By Aspergillus Carbonarius and a Ochraceus
( Hamad bin Khalifa University Press (HBKU Press) , 2018 , Conference Paper)Ochratoxin A (OTA) has hepatotoxic, teratogenic, nephrotoxic and carcinogenic effect in mammals and it is classified as a group 2B carcinogen by the World Health Organization. The European Union has set the maximum OTA ... -
Zebrafish (Danio rerio) as a Model for the Study of Developmental and Cardiovascular Toxicity of Electronic Cigarettes
( MDPI , 2023 , Article Review)The increasing popularity of electronic cigarettes (e-cigarettes) as an alternative to conventional tobacco products has raised concerns regarding their potential adverse effects. The cardiovascular system undergoes intricate ... -
Zinc Oxide Nanoparticles and Their Biosynthesis: Overview
( MDPI , 2022 , Article Review)Zinc (Zn) is plant micronutrient, which is involved in many physiological functions, and an inadequate supply will reduce crop yields. Its deficiency is the widest spread micronutrient deficiency problem; almost all crops ... -
اقتصاد المعرفة ومابعد جائحة كورونا
( قطاع البحث والدراسات العليا - جامعة قطر , 2020 , Video)لا يوجد ملخص -
الملكية الفكرية والابتكار وتخطي أزمة فايروس كوفيد-19 المستجد
( جامعة قطر , 2020 , Video)سيتم في هذه الندوة مناقشة دور حقوق الملكية الفكرية في تمكين البحث العلمي لمواجهة الأزمات، ودور إدارة حماية الملكية الفكرية في الدولة لمواجهة جائحة كورونا والتسهيلات المقدمة لأصحاب الأعمال في قطر. بالإضافة إلى جلسة نقاشية ...
