Browsing Biological & Environmental Sciences by Title
Now showing items 61-80 of 824
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Antimicrobial and Cytotoxic Activity of Streptomyces sp. Isolated from Desert Soils, Qatar
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Streptomyces are Gram positive aerobic bacteria from the phylum Actinobacteria with close to 570 known species. They are popular for providing a variety of compounds having medicinal properties including - antibiotics, ... -
Antioxidant constituents from Lawsonia inermis leaves: Isolation, structure elucidation and antioxidative capacity
( Elsevier Ltd , 2011 , Article)The antioxidant potential of different fractions of Lawsonia inermis (Lythraceae) was investigated. The n-butanolic fraction showed the highest yield of extraction; it also exhibited a strong antioxidant activity in the ... -
Application of Balanced Acceptance Sampling to an Intertidal Survey
( De Gruyter Open Ltd , 2017 , Article)In ecological studies, the population of interest is often spread over a large area. In these studies, obtaining a sample with good spatial coverage is an important feature in the design of a survey. In most cases adjacent, ... -
Application of eggshell wastes for boron remediation from water
( Elsevier B.V. , 2018 , Article)Boron in high concentration levels leads to harmful effects on the environment and human health. Hence, it needs to be eliminated from desalinated water in order to improve water quality. As a result, the removal of boron ... -
Application of geopolymers synthesized from incinerated municipal solid waste ashes for the removal of cationic dye from water
( Public Library of Science , 2020 , Article)In this study, municipal solid waste bottom ash (MSW-BA) and fly ash (MSW-FA) were used as a source of aluminosilicate to prepare geopolymer (GEO) adsorbents (GEO-MSWBA and GEO-MSWFA) for the removal of methylene blue (MB) ... -
Application of low-fermenting yeast Lachancea thermotolerans for the control of toxigenic fungi Aspergillus parasiticus, Penicillium verrucosum and Fusarium graminearum and their mycotoxins
( MDPI , 2018 , Article)© 2018 by the authors. Licensee MDPI, Basel, Switzerland. Mycotoxins are important contaminants of food and feed. In this study, low fermenting yeast (Lachancea thermotolerans) and its derivatives were applied against ... -
Application of MALDI-TOF MS for identification of environmental bacteria: A review
( Academic Press , 2022 , Article)Bacteria play a variety of roles in the environment. They maintain the balance in the ecosystem and provide different ecosystem services such as in biogeochemical cycling of nutrients, biodegradation of toxic pollutants, ... -
Application of scanning electron microscopy and MALDI-TOF MS in the exploration of the parasporal insecticidal crystals of Bacillus thuringiensis strains isolated from Qatar soil
( Elsevier Ltd , 2022 , Article)Bacillus thuringiensis (Bt) plays an important role in health and agriculture due to its insecticidal activities. In this study, six Bt strains isolated from Qatar soil were used to explore their crystals morphologies and ... -
Application of statistical experimental design for optimisation of bioinsecticides production by sporeless Bacillus thuringiensis strain on cheap medium
( Sociedade Brasileira de Microbiologia - SBM , 2014 , Article)In order to overproduce bioinsecticides production by a sporeless Bacillus thuringiensis strain, an optimal composition of a cheap medium was defined using a response surface methodology. In a first step, a Plackett-Burman ... -
Application of statistical experimental design for optimisation of bioinsecticides production by sporeless Bacillus thuringiensis strain on cheap medium
(2013 , Article)In order to overproduce bioinsecticides production by a sporeless Bacillus thuringiensis strain, an optimal composition of a cheap medium was defined using a response surface methodology. In a first step, a Plackett-Burman ... -
Application of yeasts and yeast derivatives for the biological control of toxigenic fungi and their toxic metabolites
( Elsevier , 2021 , Article)Mycotoxins, the metabolites of toxigenic fungi are important contaminants of food and agriculture industry throughout the world. Among the different strategies to minimize the mycotoxins synthesis and decontamination of ... -
Applications, advancements, and challenges of cyanobacteria-based biofertilizers for sustainable agro and ecosystems in arid climates
( Elsevier , 2024 , Article)Based on the increasing world population, the food demands have tremendously increased. Chemical-based conventional agricultural practices will be required to fulfill the food demands, which will damage the soil and create ... -
Aquaculture from inland fish cultivation to wastewater treatment: a review
( Springer Nature , 2023 , Article)The aquaculture industry is rapidly developing, generating a high amount of wastewater. Inland aquaculture effluents contain nutrients and other substances that can cause eutrophication and the emergence of resistive ... -
Aquaporins Are One of the Critical Factors in the Disruption of the Skin Barrier in Inflammatory Skin Diseases
( MDPI , 2022 , Article Review)The skin is the largest organ of the human body, serving as an effective mechanical barrier between the internal milieu and the external environment. The skin is widely considered the first-line defence of the body, with ... -
Aqueous Extract Of Origanum Syriacum Inhibits Proliferation, Migration, Adhesion As Well As Erk1/2 Phosphorylation In Aggressive Breast Cancer
( Hamad bin Khalifa University Press (HBKU Press) , 2014 , Conference Paper)Background: Breast Cancer is one of the leading causes of cancer related mortality in women, both in Qatar and the world. Despite the available treatments the incidence of breast cancer is increasing. This highlights the ... -
An Arab registry for type 1 diabetes: global benefits for type 1 diabetes patients
( Taylor & Francis , 2016 , Article)BACKGROUND: The Arab world encompasses twenty-two Arabic-speaking countries, where the rate of consanguinity can exceed 50%. Type 1 diabetes (T1D), a chronic disorder that requires lifelong treatment, is believed to be ... -
Arabian Dugongs of Qatar: Updates from a Renewed Research Initiative
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Dugongs ("bugarah al bahr" or "cow of the sea") in Qatar and the wider Arabian Gulf, are animals of both historic and cultural significance to the people in the region. Historically hunted in Qatar, today they are seen as ... -
Are submarine groundwater discharges affecting the structure and physiological status of rocky intertidal communities?
( Elsevier Ltd , 2018 , Article)This study evaluated the impacts of submarine groundwater discharges (SGD) on a rocky intertidal community of South Portugal, during April–November 2011. Chlorophyll-a concentration was higher at the SGD site in respect ... -
Assessing safe food handling knowledge and practices of food service managers in Doha, Qatar
( SAGE Publications Inc. , 2019 , Article)The aim of this cross-sectional study was to assess safe food handling practices, food safety knowledge, and adherence to implementation of Hazard Analysis and Critical Control Point among 53 food safety managers working ... -
Assessing the vulnerability of socio-environmental systems to climate change along an altitude gradient in the Indian Himalayas
( Elsevier B.V. , 2019 , Article)Climate change is affecting biotic and abiotic components of the Himalayan ecosystem, disturbing existing socio-ecological systems. Future changes in the climate, coupled with ongoing development activities in the Himalayas, ...