Biological & Environmental Sciences: Recent submissions
Now showing items 821-840 of 930
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Impact of phytolacca Americana extracts on gene expression of colon cancer cells
( John Wiley & Sons, Ltd , 2014 , Article)Native Americans have used Phytolacca americana to treat breast ailments, gastrointestinal disorders, rashes, and inflammation. Some anti-cancer and anti-viral research has been reported on this perennial herb, but none ... -
Mechanisms underlying the antihypertensive effects of garlic bioactives
( Elsevier Inc. , 2014 , Article)Cardiovascular disease remains the leading cause of death worldwide with hypertension being a major contributing factor to cardiovascular disease–associated mortality. On a population level, non-pharmacological approaches, ... -
Anti-Metastatic and Anti-Tumor Growth Effects of Origanum majorana on Highly Metastatic Human Breast Cancer Cells: Inhibition of NFκB Signaling and Reduction of Nitric Oxide Production
( Public Library of Science , 2013 , Article)Background: We have recently reported that Origanum majorana exhibits anticancer activity by promoting cell cycle arrest and apoptosis of the metastatic MDA-MB-231 breast cancer cell line. Here, we extended our study by ... -
Examining the Extinction of the Barbary Lion and Its Implications for Felid Conservation
( Public Library of Science , 2013 , Article)Estimations of species extinction dates are rarely definitive, yet declarations of extinction or extirpation are important as they define when conservation efforts may cease. Erroneous declarations of extinctions not only ... -
Connecting the dots between PubMed abstracts
( Public Library of Science , 2012 , Article)Background: There are now a multitude of articles published in a diversity of journals providing information about genes, proteins, pathways, and diseases. Each article investigates subsets of a biological process, but to ... -
An estimation of erinaceidae phylogeny: A combined analysis approach
( Public Library of Science , 2012 , Article)Background: Erinaceidae is a family of small mammals that include the spiny hedgehogs (Erinaceinae) and the silky-furred moonrats and gymnures (Galericinae). These animals are widely distributed across Eurasia and Africa, ... -
Mitotic Arrest and Apoptosis in Breast Cancer Cells Induced by Origanum majorana Extract: Upregulation of TNF-α and Downregulation of Survivin and Mutant p53
( Public Library of Science , 2013 , Article)Background: In the present study, we investigated the effect of Origanum majorana ethanolic extract on the survival of the highly proliferative and invasive triple-negative p53 mutant breast cancer cell line MDA-MB-231. ... -
Mitochondrial phylogeography illuminates the origin of the extinct caspian tiger and its relationship to the amur tiger
( Public Library of Science , 2009 , Article)The Caspian tiger (Panthera tigris virgata) flourished in Central Asian riverine forest systems in a range disjunct from that of other tigers, but was driven to extinction in 1970 prior to a modern molecular evaluation. ... -
Hypolithic cyanobacteria colonization of quartz at South Desert
( Science Publications , 2014 , Article)Hypolithic microbial communities (found underneath rocks) were encountered in the southern desert of Qatar where quartz rocks are ubiquitous and are a substrate for hypoliths. These hypoliths thrive where extreme temperature, ... -
TRAF6-mediated ubiquitination of NEMO requires p62/sequestosome-1
( Elsevier Ltd , 2014 , Article)The atypical protein kinase C-interacting protein p62/sequestosome-1 (p62) has emerged as a crucial molecule in a variety of cellular functions due to its involvement in various signaling mechanisms. p62 has been implicated ... -
Community structure and activity of a highly dynamic and nutrient-limited hypersaline microbial mat in Um Alhool Sabkha, Qatar
( Public Library of Science , 2014 , Article)The Um Alhool area in Qatar is a dynamic evaporative ecosystem that receives seawater from below as it is surrounded by sand dunes. We investigated the chemical composition, the microbial activity and biodiversity of the ... -
Revealing the maternal demographic history of Panthera leo using ancient DNA and a spatially explicit genealogical analysis
( BioMed Central Ltd. , 2014 , Article)Background: Understanding the demographic history of a population is critical to conservation and to our broader understanding of evolutionary processes. For many tropical large mammals, however, this aim is confounded by ... -
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 ... -
Comparative skull analysis suggests species-specific captivity-related malformation in lions (Panthera leo)
( Public Library of Science , 2014 , Article)Lion (Panthera leo) populations have dramatically decreased worldwide with a surviving population estimated at 32,000 across the African savannah. Lions have been kept in captivity for centuries and, although they reproduce ... -
On the diet of the Pharaoh Eagle Owl, Bubo ascalaphus (Savigny, 1809), in Qatar, with an overview of its feeding habits
( Taylor and Francis Ltd. , 2014 , Article)The diet of Bubo ascalaphus in Qatar was assessed based on pellets collected from the first known nesting site of the species in the country. The pellets contained a total of 68 prey items, representing 9 different species: ... -
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 ... -
Uptake of Reactive Black 5 by pumice and walnut activated carbon: Chemistry and adsorption mechanisms
( Korean Society of Industrial Engineering Chemistry , 2014 , Article)The potential of using pumice and walnut wood activated carbon as low-cost adsorbents for the removal of the diazo dye Reactive Black 5 (RB5) from aqueous solutions was investigated. The Langmuir isotherm fit to the data ... -
Estimating the carbon dynamics of South Korean forests from 1954 to 2012
( Copernicus GmbH , 2014 , Article)Forests play an important role in the global carbon (C) cycle, and the South Korean forests also contribute to this global C cycle. While the South Korean forest ecosystem was almost completely destroyed by exploitation ... -
Relative sensitivity of soft-bottom intertidal macrofauna to increased CO2 and experimental stress
( Inter-Research , 2014 , Article)We used a controlled CO2 perturbation experiment to test hypotheses about changes in diversity, composition and structure of soft-bottom intertidal macrobenthic assemblages, under realistic and locally relevant scenarios ... -
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 ...
