Browsing Biological & Environmental Sciences by Publication Date
Now showing items 141-160 of 812
-
The influence of different microalgal diets on European clam (Ruditapes decussatus, Linnaeus, 1758) larvae culture performances
( John Wiley & Sons Ltd , 2015 , Article)The European clam, Ruditapes decussatus is a species with high commercial importance in Portugal and other Southern European countries. However, the development of R. decussatus culture has been limited by the highly ... -
Cyanomatrix and Cyanofilm
( OMICS International , 2015 , Article)Cyanobacteria are diverse in their habitats, structure, and metabolism that can grow as unicellular or long filaments and secreting high molecular mass polymers (extracellular polymer substances, EPS), which can either be ... -
Kinetics and thermodynamics of enhanced adsorption of the dye AR 18 using activated carbons prepared from walnut and poplar woods
( Elsevier , 2015 , Article)Activated carbons prepared from walnut and poplar woods are used as economical adsorbents for the rapid removal and fast adsorption of Acid Red 18 dye from the aqueous solutions; the kinetics, isotherm and thermodynamics ... -
Metal distribution in marine sediment along the Doha Bay, Qatar
( Kluwer Academic Publishers , 2015 , Article)Concentrations of 25 heavy metals (Ag, Al, As, Ba, Be, Ca, Cd, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Mo, Na, Ni, Pb, Sb, Se, Sr, V, Zn and Hg) in surface sediments along the Doha Bay from 10 transects each with five stations were ... -
Selective removal of dibenzothiophene from commercial diesel using manganese dioxide-modified activated carbon: A kinetic study
( Taylor and Francis Ltd. , 2015 , Article)With a total concentration of 7055 mgS/kgfuel, the content of organosulphur compounds (OSCs) in local diesel is 20 times higher than the regulated value. Analysis revealed that 30% of OSC is originated from dibenzothiophene ... -
Influence of diesel acidification on dibenzothiophene removal: A new desulfurization practice
( Elsevier , 2015 , Article)Commercial diesel is often loaded with organosulphur compounds including hard-to-remove dibenzothiophene DBT and other derivatives. Following uncommon and simple procedure, dibenzothiophene was selectively removed upon ... -
A novel desulfurization practice based on diesel acidification prior to activated carbon adsorption
( Springer New York LLC , 2015 , Article)Commercial diesel is often rich with organosulfur compounds and a value of 7,100 mgS/kg was recently reported. As confirmed by chromatographic analysis, about 36% of sulfur compounds are originated from dibenzothiophene. ... -
Insights into the remediation characterization of modified bentonite in minimizing organosulphur compounds from diesel fuel
( Korean Society of Industrial Engineering Chemistry , 2015 , Article)In this work, physical and chemical characteristics of the raw, treated, and acid activated bentonite were investigated using XRD, FTIR, scanning electron microscopy (SEM), and differential thermal analysis (DTA)/thermogravimetry ... -
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. ... -
Global change: The Arabian Gulf ecosystem- An introduction
( Hamad bin Khalifa University Press (HBKU Press) , 2015 , Conference Paper)The Arabian Gulf is a main source of wealth and food for the people of the Gulf countries. For hundreds of years, the Gulf used to be the main source for some of the finest pearls in the world. It harbors highly diverse ... -
Bayesian network and response surface methodology for prediction and improvement of bacterial metabolite production
( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference Paper)The optimization of antifungal activity production by Bacillus amyloliquefaciens was carried out using Response Surface Methodology (RSM) in two steps. The first step involved the screening of cultural parameters affecting ... -
Thymus vulgaris (Thyme) inhibits proliferation, adhesion, migration, and invasion of human colorectal cancer cells
( Mary Ann Liebert Inc. , 2015 , Article)Colorectal cancer (CRC) remains one of the most common malignancies and a leading cause of cancer-related deaths. Its prognosis remains poor for patients with several grades of this disease. This underscores the need for ... -
New ecological redline policy (ERP) to secure ecosystem services in China
( Elsevier Ltd , 2015 , Article)China is facing huge environmental problems, with its current rapid rate of urbanization and industrial-ization causing biodiversity loss, ecosystem degradation, and land resources degradation on a major scale.To overcome ... -
Characterisation of novel Bacillus thuringiensis isolates against Aedes aegypti (Diptera: Culicidae) and Ceratitis capitata (Diptera:Tephridae)
( Elsevier Inc. , 2015 , Article)Bacillus thuringiensis is successfully used in pest management strategies as an eco-friendly bioinsecticide. Isolation and identification of new strains with a wide variety of target pests is an ever growing field. In this ... -
Date palm status and perspective in qatar
( Springer Netherlands , 2015 , Article)Qatar ranks as the 16 largest date-producing country in the world. There are 581,336 date palm trees growing in an area of 2,469 ha with date production of 21,491 mt as of 2010. It is the major fruit tree grown in the ... -
A comparison of physiological and transcriptome responses to water deprivation and salt loading in the rat supraoptic nucleus
( American Physiological Society , 2015 , Article)Salt loading (SL) and water deprivation (WD) are experimental challenges that are often used to study the osmotic circuitry of the brain. Central to this circuit is the supraoptic nucleus (SON) of the hypothalamus, which ... -
Ginsenoside Rb1 inhibits fibrillation and toxicity of alpha-synuclein and disaggregates preformed fibrils
( Elsevier , 2015 , Article)Compelling evidence indicates that α-synuclein (α-syn) aggregation plays a central role in the pathogenesis of Parkinson's disease (PD) and other synucleinopathies. Identification of compounds that inhibit or reverse the ... -
Electropolymerized phenol derivatives as permselective polymers for biosensor applications
( The Royal Society of Chemistry , 2015 , Article)Amperometric biosensors are often coated with a polymeric permselective film to avoid electroactive interference by reducing agents present in the target medium. Phenylenediamine and phenol monomers are commonly used to ... -
Susceptibility of Agrotis segetum (noctuidae) to Bacillus thuringiensis and analysis of midgut proteinases
( Taylor & Francis , 2015 , Article)Seventy-eight Bacillus thuringiensis isolates were selected for a screening against the Lepidoptera species Agrotis segetum to search the higher insecticidal activity. In a preliminary bioassay, the spore-crystal mixture ... -
Identification of phenolic compounds by HPLC/MS and in vitro evaluation of the antioxidant and antimicrobial activities of Ceratonia siliqua leaves extracts
( Academic Jounals , 2015 , Article)Ceratonia siliqua is a typical plant of the Mediterranean area, which is mainly used as animal and human food and in folk medicine for treating some diseases such as antidiarrheal and diuretic. The present study was planned ...