Browsing Biological & Environmental Sciences by Title
Now showing items 138-157 of 856
-
Characteristics of olive mill solid residue and its application in remediation of Pb2+, Cu2+ and Ni2+ from aqueous solution: Mechanistic study
( Elsevier , 2014 , Article)This study investigated the use of untreated olive mill solid residues (OMSR) as a solid extractant for Pb2+, Cu2+ and Ni2+ ions from aqueous solution. It was shown that the solution initial pH value affected the metal ... -
The characteristics, occurrence, and toxicological effects of alternariol: a mycotoxin
( Springer Science and Business Media Deutschland GmbH , 2024 , Other)Alternaria species are mycotoxin-producing fungi known to infect fresh produce and to cause their spoilage. Humans get exposed to fungal secondary metabolites known as mycotoxin via the ingestion of contaminated food. ... -
Characterization and assessment of process water from oil and gas production: A case study of process wastewater in Qatar
( Elsevier , 2022 , Article)This study characterized and assessed three different process water (PWWs) (S-1, S-2, and S-3) from oil and gas production in Qatar. The wastewater generated in various processing stages contains many harmful components ... -
Characterization and utilization of fly ash of heavy fuel oil generated in power stations
( Elsevier B.V. , 2014 , Article)Unlike coal fly ash, fly ash of heavy fuel oil has received much less attention in the literature. In this work, detailed physicochemical characterization of heavy fuel oil fly ash (FA) is provided. The ash has a carbonaceous ... -
Characterization of bioactive compounds and ameliorative effects of Ceratonia siliqua leaf extract against CCl4 induced hepatic oxidative damage and renal failure in rats
( Elsevier Ltd , 2011 , Article)Ceratonia siliqua is a typical Mediterranean plant, mainly used in food and Tunisian traditional folk medicine. Among the tested extracts, the ethyl acetate fraction (EACs) exhibited the highest total phenolic and flavonoids ... -
Characterization of Commercial Reverse Osmosis and Nanofiltration Membranes for Membrane Fouling
( Hamad bin Khalifa University Press (HBKU Press) , 2018 , Conference Paper)Membrane Filtration technique is being accepted worldwide as an environment friendly and energy efficient technique in Desalination Industry as compared to Thermal Desalination techniques. However, the performance of ... -
Characterization of the extracellular polymeric substances (EPS) of Virgibacillus strains capable of mediating the formation of high Mg-calcite and protodolomite
( Elsevier B.V. , 2019 , Article)The origin of dolomite –a common mineral in the geological record– is the subject of an ongoing debate. Among different hypotheses, it has been proposed that extracellular polymeric substances (EPS) excreted by microbes ... -
Characterization of tunisian Bacillus thuringiensis strains with abundance of kurstaki subspecies harbouring insecticidal activities against the lepidopteran insect ephestia kuehniella
( Springer US , 2010 , Article)The study of 257 crystal-producing Bacillus thuringiensis isolates from bioinsecticide free soil samples collected from different sites in Tunisia, was performed by PCR amplification, using six primer pairs specific for ... -
Chemical Characterization and Source Identification of Beached Oil from Two Areas Along the North-Western Coast of Qatar
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Over the years there have been several reports of oil spills affecting particularly the northern coast of Qatar. In most cases, the source of oil spills is not identified. The spilled oils are very resistant to degradation ... -
Chemical composition and evaluation of antioxidant and antimicrobial activities of Tunisian Thymelaea hirsuta with special reference to its mode of action
( Elsevier B.V. , 2013 , Article)In the present study, we evaluated in vitro antimicrobial and antioxidant properties of Thymelaea hirsuta extracts as well as its phytochemical composition. Total phenolic and flavonoid contents were highest in acetone and ... -
Chemical composition, cytotoxicity effect and antimicrobial activity of Ceratonia siliqua essential oil with preservative effects against Listeria inoculated in minced beef meat
( Elsevier B.V. , 2011 , Article)The present study describes the phytochemical profile and the protective effects of Ceratonia siliqua pods essential oil (CsEO), a food and medicinal plant widely distributed in Tunisia. Twenty five different components ... -
China's ecological civilization program-Implementing ecological redline policy
( Elsevier Ltd , 2019 , Article)China is one of the first countries to explicitly attempt to institute coordinated, ecosystem-based management across local, regional, and national scales. Chinese scientists have been urging policymakers to manage landscapes ... -
Chronic Cadmium Exposure Alters Cardiac Matrix Metalloproteinases in the Heart of Sprague-Dawley Rat
( Frontiers Media , 2021 , Article)The aim of this study was to evaluate the role of chronic cadmium exposure in modulating cardiac matrix metalloproteinases (MMPs) in the heart of rats. Adult male Sprague-Dawley rats were exposed to 15 ppm CdCl2 in drinking ... -
CIITA gene polymorphism (rs3087456) in systemic lupus erythematosus and rheumatoid arthritis: A population-based cohort study
( Wiley , 2021 , Other)Systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA) are influenced by genetic variants in immune system HLA genes. The Class II Major Histocompatibility Complex Transactivator (CIITA) is an important co-activator ... -
Climate change vulnerability in urban slum communities: Investigating household adaptation and decision-making capacity in the Indian Himalaya
( Elsevier B.V. , 2018 , Article)© 2018 Elsevier Ltd Climate change is predicted to have severe impacts on mountainous regions, including urban settlements, and livelihoods of the urban poor. Adaptive capacity for marginalized groups is largely determined ... -
Climate change will seriously impact bird species dwelling above the treeline: A prospective study for the Italian Alps
( Elsevier B.V. , 2017 , Article)High mountain systems are predicted to be especially vulnerable to the impact of climate change, with the climatically-constrained tree limit rapidly shifted upslope. In turn, the impact of upward treeline migration on ... -
Climate variability and its impact on the spatial distribution of mangroves in Qatar
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Mangroves are a unique vegetation community that can adapt to harsh climatic conditions, including in areas of high temperature and high salinity levels. It is an important coastal wetland community in many countries that ... -
Clinical–Epidemiological Characteristics and IFITM-3 (rs12252) Variant Involvement in HIV-1 Mother-to-Children Transmission Susceptibility in a Brazilian Population
( MDPI , 2023 , Article)Mother-to-children transmission (MTCT) is the main infection route for HIV-1 in children, and may occur during pregnancy, delivery, and/or postpartum. It is a multifactorial phenomenon, where genetic variants play an ... -
Closing a gap - First records of bryophytes from the Qatar Peninsula
( A.D.A.C. , 2018 , Article)The ephemeral or annual mosses Entosthodon fascicularis (Funariaceae), Microbryum starckeanum (Pottiaceae) and Pohlia melanodon (Mniaceae) were found in the understorey of natural Ziziphus nummularia shrubland in Qatar. ... -
Co-occurrence of mycotoxins in commercial formula milk and cereal-based baby food on the Qatar market
( Taylor and Francis Ltd. , 2018 , Article)The present study was conducted to explore the occurrence of mycotoxins in commercial baby foods in Doha-Qatar. LCMS/MS- and HPLC-based analysis of baby food (n?=?67) for 12 mycotoxins confirmed the presence of aflatoxin ...