Browsing Biological & Environmental Sciences by Title
Now showing items 791-810 of 915
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SOD2, a Potential Transcriptional Target Underpinning CD44-Promoted Breast Cancer Progression
( MDPI , 2022 , Article Review)CD44, a cell-adhesion molecule has a dual role in tumor growth and progression; it acts as a tumor suppressor as well as a tumor promoter. In our previous work, we developed a tetracycline-off regulated expression of CD44’s ... -
Soil moisture effects on leaf litter decomposition and soil carbon dioxide efflux in wetland and upland forests
( Soil Science Society of America , 2014 , Article)This study examined, first, the response of litter decomposition and soil CO2 efflux (RS) to different soil moisture conditions and, second, the application of various litter decomposition functions in a wetland and upland ... -
Solar cultivation of microalgae in a desert environment for the development of techno-functional feed ingredients for aquaculture in Qatar
( Elsevier , 2022 , Article)The demand for aquaculture feed will increase in the coming years in order to ensure food security for a growing global population. Microalgae represent a potential fish-feed ingredient; however, the feasibility of their ... -
Solvent Extraction Of Total Petroleum Hydrocarbons From Contaminated Soils In Qatar
( Hamad bin Khalifa University Press (HBKU Press) , 2014 , Conference Paper)The increase of soil and water contamination, caused by oil leakages during transportation and storage of petroleum components, present serious threat to human health and the environment. Total petroleum hydrocarbons (TPH) ... -
Source identification of beached oil at Al Zubarah, Northwestern Qatar
( Elsevier B.V. , 2017 , Article)The Gulf was contaminated with a large quantity of crude oil during the Gulf War in 1991. Some of the oil beached on the shorelines of the Northwest coast of Qatar. It was discovered, during a sampling campaign in 2015, ... -
Spatial density pattern of Himalayan Ibex (Capra sibirica) in Pakistan
( Elsevier B.V. , 2022 , Article)Mountain ungulates perform a key role in maintaining the balance of ecosystems as they are the primary consumers of vegetation and prey for large predators. The mountain ranges of northern Pakistan are home to six species ... -
Spatial patterns of reef fishes and corals in the thermally extreme waters of Qatar
( Frontiers Media S.A. , 2022 , Article)The Persian Gulf is a thermally extreme environment in which reef corals have adapted to survive through temperature ranges that would be lethal to corals from other regions. Despite offering a unique opportunity to better ... -
Spatial variation in coral reef fish and benthic communities in the central Saudi Arabian Red Sea
( PeerJ , 2017 , Article)Local-scale ecological information is critical as a sound basis for spatial management and conservation and as support for ongoing research in relatively unstudied areas. We conducted visual surveys of fish and benthic ... -
Spectral and Structural Properties of High-Quality Reduced Graphene Oxide Produced via a Simple Approach Using Tetraethylenepentamine
( MDPI , 2022 , Article)A simple temperature-assisted solution interaction technique was used to functionalize and reduce graphene oxide (GO) using tetraethylenepentamine (TEPA) with less chemicals, low temperature, and without using other reducing ... -
A spherical-plot solution to linking acceleration metrics with animal performance, state, behaviour and lifestyle
( BioMed Central , 2016 , Article)Background We are increasingly using recording devices with multiple sensors operating at high frequencies to produce large volumes of data which are problematic to interpret. A particularly challenging example comes from ... -
Spread of the yellow-legged hornet Vespa velutina nigrithorax du Buysson (Hymenoptera: Vespidae) across Northern Spain
( European and Mediterranean Plant Protection Organization , 2015 , Article)The yellow-legged hornet�Vespa velutina nigrithorax�du Buysson (Hymenoptera: Vespidae) is an Asian native species which has now established in parts of Europe. Since its detection in France in 2005 it has spread quickly ... -
Standing stocks and body size of deep-sea macrofauna: Predicting the baseline of 2010 Deepwater Horizon oil spill in the northern Gulf of Mexico
( Elsevier , 2012 , Article)A composite database encompassing 6 benthic surveys from years 1983 to 2003 was constructed to evaluate the distribution of macrofaunal biomass in the deep Gulf of Mexico (GoM) prior to the Deepwater Horizon oil spill. ... -
Statistical Analysis of Cultural Parameters Influencing Delta-Endotoxins and Proteases Productions by Bacillus thuringiensis kurstaki
( Springer Verlag , 2016 , Article)Bacillus thuringiensis is a spore-forming bacterium that produces delta-endotoxins, which are toxic to lepidopterans, dipterans and coleopterans. Concomitantly with production of delta-endotoxins, B. thuringiensis produces ... -
Strategies and Perspectives for UV Resonance Raman Applicability in Clinical Analyses of Human Sperm RNA.
( MDPI , 2021 , Article)Developing a deeper knowledge about the impact of DNA and RNA epigenetic mutations on sperm production and fertilization performance is essential for selecting best quality samples in Assisted Reproductive Technologies ... -
Studies on metal–organic framework (MOF) nanomedicine preparations of sildenafil for the future treatment of pulmonary arterial hypertension
( nature , 2021 , Article)Pulmonary arterial hypertension (PAH) is an incurable disease, although symptoms are treated with a range of dilator drugs. Despite their clinical benefits, these drugs are limited by systemic side-effects. It is, therefore, ... -
Study of bacterial interactions in reconstituted hydrocarbon-degrading bacterial consortia from a local collection, for the bioremediation of weathered oily-soils
( Elsevier B.V. , 2021 , Article)To enhance the process of bacterial remediation of weathered hydrocarbons, the area of Dukhan, Qatar, was considered as a model for weathering processes. Self-purification by indigenous hydrocarbon-degrading bacteria showed ... -
Study of the Bacillus thuringiensis Vip3Aa16 histopathological effects and determination of its putative binding proteins in the midgut of Spodoptera littoralis
( Elsevier Inc. , 2011 , Article)The bacterium Bacillus thuringiensis produces, at the vegetative stage of its growth, Vip3A proteins with activity against a broad spectrum of lepidopteran insects. The Egyptian cotton leaf worm (Spodoptera littoralis) is ... -
Study the Potential Use of Waste Water Grown Microalgae Biomass as Biofertilizer
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Liquid wastewater streams that contain nitrogen must be treated before being discharged into the environment to prevent eutrophication. Already there are several existing conventional treatment technologies that can remove ... -
Studying competitive sorption behavior of methylene blue and malachite green using multivariate calibration
( Elsevier B.V. , 2014 , Article)Sorption of methylene blue MB and malachite green MG (with 96.4% spectral overlap) from bi-solute solution by natural kaolinitic-clay and philipsite-rich-zeolite tuff was addressed where solutes simply quantified using ... -
Submarine groundwater discharge on the algarve shelf: Case study of albufeira-ribeira de quarteira aquifer system
( Laboratorio Nacional de Energia e Geologia , 2015 , Article)In the Algarve region (S of Portugal) occur several coastal aquifer systems which geometry and structure of the water bearing formations, groundwater flow, and water balance, are favorable to the existence of submarine ...