Biological & Environmental Sciences: المرسلات الحديثة
السجلات المعروضة 441 -- 460 من 920
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Environmental Factors Affecting the Growth and Enzymatic Activity of Ceratocystis Radicicolathe Causal Agent of Black Scorch Disease on Date Palm
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Background: Ceratocystis radicicola is a soil-borne pathogen (Wingfield et al, 1993) causing sudden death of date palm (Phoenix dactylifera) in USA and South Africa (Bliss, 1941; Lind & Smit, 1999). It also has been reported ... -
Effect of Intensive Weight Loss Camp and Maintenance Clubs on Overweight School Children in Qatar
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Obesity and overweight continue to raise in Qatar due to a confluence of factors such as genetics, overeating, inactivity, tradition of food-centered social events, convenience, and advertising of energy-dense fast foods, ... -
Current biodiversity and biogeography trends of reef-building corals in Qatar
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Coral reefs represent one of the most biologically and socio-economically important natural assets in the Arabian region, particularly in Qatar. Stress through increasing sea temperatures and salinities, growing development, ... -
Bio self-healing concrete using MICP by an indigenous Bacillus cereus strain isolated from Qatari soil
( Elsevier , 2022 , Article)In this study, the self-healing process in concrete through microbial-induced calcium carbonate precipitation (MICP) performed by an adapted indigenous strain of Bacillus cereus isolated from soils in Qatar was investigated. ... -
Unraveling the Role of Sex Hormones on Keratinocyte Functions in Human Inflammatory Skin Diseases
( MDPI , 2022 , Article Review)The skin exerts several fundamental functions that are the first physical, chemical and immune barriers to the human body. Keratinocytes, the main cell type of the epidermis, provide mechanical defense, support skin integrity ... -
Systematic laboratory approach to produce Mg-rich carbonates at low temperature
( Royal Society of Chemistry , 2021 , Article)Dolomite is a common Mg-rich carbonate in the geological record, but the mechanism of its formation remains unclear. At low temperature, the incorporation of magnesium ions into the carbonate minerals necessary to form ... -
Material flow analysis of plastic waste in the gulf co-operation countries (GCC) and the Arabian gulf: Focusing on Qatar
( Elsevier , 2022 , Article)Global plastic waste production has increased dramatically in recent years, both globally and regionally, having a multitude of adverse effects on the environment and human health. However, little attention has been directed ... -
Drivers of snow leopard poaching and trade in Pakistan and implications for management
( Pensoft Publishers , 2022 , Article)The snow leopard is one of the highly valued species from high-altitude mountain ecosystems of Central and Southeast Asia, including Pakistan. This keystone species is facing a myriad of conventional and emerging threats, ... -
Patterns of livestock depredation and Human–wildlife conflict in Misgar valley of Hunza, Pakistan
( Nature Research , 2021 , Article)Throughout the world, livestock predation by mammalian carnivores causes significant economic losses to poor farmers, and leads to human–wildlife conflicts. These conflicts result in a negative attitude towards carnivore ... -
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 ... -
The status of harmful algae in the Arabian Gulf
( Hamad bin Khalifa University Press (HBKU Press) , 2015 , Conference Paper)In the ocean, microscopic plankton algae constitute a crucial food supply for filter- feeding bivalves, shellfish (oyster, mussels, scallop and clams), as well as larvae of commercially important crustaceans and finfish. ... -
Mediation of carbonate minerals formation by aerobic bacterial strains isolated from Dohat Faishakh Sabkha in Qatar
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Carbon dioxide (CO2) is increasingly released to the environment as a result of the extensive use of various industrial facilities. According to the Intergovernmental Panel on Climate Change Report (2015), cumulative ... -
Invitro conservation of some rare and threatened desert plants in Qatar
( Hamad bin Khalifa University Press (HBKU Press) , 2018 , Conference Paper)Background A range of natural factors, invasive animals and human activity have been severely affecting stability of the ecosystem, resulting in the annihilation of plants habitats and so plant endangerment or even extinction. ... -
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 ... -
Hot Spots for Poly Aromatic Hydrocarbons (PAHs) in Sediments and Benthic Organisms in the Coastal Water of Qatar
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)The state of Qatar has a strategic location within the heart of the Arabian Gulf, the richest oil area in the world. Its extensive coastline (700 km) is experiencing some of the most radical environmental conditions in the ... -
Microbial Mats from the Khor Al-Adaid Sabkha, Qatar: Morphotypes and Association with Authigenic Minerals
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)The sabkhas (i.e., salt flats) of Qatar are among the rare places on Earth where carbonate and sulfate minerals similar to those constituting economically important hydrocarbon reservoirs are still forming today, under the ... -
valuation of salt tolerance in selected Qatari halophytes at the two initial growth stages
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Scarcity of water and availability of land for agricultural production are the most environmental issues that facing the (GCC) countries and Qatar one of them. Qatar lies in region which characterized by having high ... -
Does allelopathy increase invasiveness of Prosopis juliflora (sw.) Dc in arid land environment?
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Prosopis juliflora is highly recognized for its invasive character and its detrimental effects on different plant species across the world due to possessing allelochemicals. Our field observations indicated high prevalence ... -
Comparing connection to theory in Bachelor's theses: Old research university versus new regional university college
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Article)Quality of higher education is often assumed to be linked to the size of the faculty. Therefore, this study tested the hypothesis whether Bachelor's theses in ecology at a large, old research university would have more ... -
Dynamics (seasonal and intra-diurnal) of air-borne fungal spore population of Doha area, Qatar
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)The availability and dynamics of airborne fungal spores in the atmosphere are strongly influenced by the meteorological parameters and by other factors such as air pollutants. The aim of this study was to update the knowledge ...
