Biological & Environmental Sciences: المرسلات الحديثة
السجلات المعروضة 701 -- 720 من 920
-
Age, growth, population dynamics and stock status of Perna perna in Omani waters
( Triveni Enterprises , 2018 , Article)Aim: Population parameters such as growth, recruitment pattern, mortality, exploitation rate and the length-weight relationship were investigated for the brown mussel, Perna pernain Omani waters. Methodology: Monthly ... -
Effects of bottom substratum on survival and growth of early juveniles of blue swimming crab, Portunus pelagicus (Linnaeus, 1758) in captivity
( Triveni Enterprises , 2018 , Article)Aim : Cannibalism remains a limiting factor during the nursery culture of crabs. This study was undertaken to improvetherearingtechniquesbyinvestigating theimpactofbottom substratum on crablet survival and growth. The ... -
Dietary L-carnitine and vitamin-E; a strategy to combat ochratoxin-A induced immunosuppression
( Elsevier Ltd , 2018 , Article)This study aimed to evaluate the effect of dietary ochratoxin A (OA), in the presence and absence of L-carnitine (LC) and vitamin E (VE), on the humoral immune responses of White Leghorn cockerels (WLC). One-day old white ... -
Large dugong (Dugong dugon) aggregations persist in coastal Qatar
( Blackwell Publishing Inc. , 2018 , Article)Dugongs (Dugong dugon) are large herbivorous marine mammals of the order Sirenia commonly referred to as sea cows. Due to their herbivorous diet, feeding and foraging dominate their natural history. Dugongs have evolved a ... -
Evidence of low levels of aflatoxin M1 in milk and dairy products marketed in Qatar
( Elsevier Ltd , 2018 , Article)This study was designed to explore the incidence of aflatoxin M1 (AFM1) in milk and dairy products marketed in Qatar. Milk (n = 72), yogurt (n = 21), cheese (n = 46), butter (n = 18) and laban (n = 25) samples were initially ... -
Plant functional trait change across a warming tundra biome
( Nature Publishing Group , 2018 , Article)The tundra is warming more rapidly than any other biome on Earth, and the potential ramifications are far-reaching because of global feedback effects between vegetation and climate. A better understanding of how environmental ... -
Into the wild: Survival, movement patterns, and weight changes in captive Ethiopian hedgehogs, Paraechinus aethiopicus following their release
( Academic Press , 2018 , Article)The survival, movement, and weight changes of 24 Ethiopian hedgehogs (Paraechinus aethiopicus) were monitored following their release from captivity. A total of 13 females and 11 males were released and radio-tracked for ... -
Effect of yeast volatile organic compounds on ochratoxin A-producing Aspergillus carbonarius and A. ochraceus
( Elsevier B.V. , 2018 , Article)Many foods and beverages in temperate and tropical regions are prone to contamination by ochratoxin A (OTA), one of the most harmful mycotoxins for human and animal health. Aspergillus ochraceus and Aspergillus carbonarius ... -
Laundry wastewater treatment using ultrafiltration under different operating conditions
( American Institute of Physics Inc. , 2018 , Conference Paper)The laundry wastewater of one of the hospitals in Qatar was selected and studied. It was found that hospital laundry is releasing considerable amount of wastewater i.e. 1800 - 2500 liters/cycle while washing 40 - 50 kg of ... -
Mercury toxicity: The importance of microbial diversity for improved environmental remediation
( CRC Press , 2018 , Book chapter)Mercury is one of the naturally occurring elements found in the environment. This heavy metal occurs naturally in minute amounts and is the sixteenth rarest element on earth. It is ranked third among the most toxic biosphere ... -
The role of gene gjb2 and connexin 26 in hearing impairment
( Palladin Institute of Biochemistry of the NASU , 2018 , Article Review)Gap Junction Beta 2 (GJB2) gene mutations are the leading causes of hereditary hearing impairment. This gene encodes various gap junction proteins such as connexin 26 (Cx26), which facilitate K+ homeostasis inside the ... -
Investigation on the effect of γ-irradiation on the dielectric and piezoelectric properties of stretchable PVDF/Fe–ZnO nanocomposites for self-powering devices
( Royal Society of Chemistry , 2018 , Article)Stretchable films of PVDF nanocomposites containing iron doped ZnO (Fe-ZnO) nanoflowers are fabricated following simple solution mixing and ?-irradiation treatment. An increase in ?-phase crystallinity is noticed for the ... -
Detection of toxigenic mycobiota and mycotoxins in cereal feed market
( Elsevier Ltd , 2018 , Article)The present study was designed to investigate the occurrence of mycotoxins and toxigenic mycobiota in cereals used as animal feed in a Qatari market. Aflatoxins (AFs) and ochratoxin A (OTA) were detected in 94 and 44% of ... -
Eggshell membrane as a novel bio sorbent for remediation of boron from desalinated water
( Academic Press , 2018 , Article)This study investigated the use of eggshell membrane (ESM) as a bio-sorbent and the effect of temperature, pH, and initial concentration on its efficiency. Furthermore, by altering the chemical composition, modified eggshell ... -
Modeling spatiotemporal variations in leaf coloring date of three tree species across China
( Elsevier B.V. , 2018 , Article)Autumn phenology can regulate climate-biosphere interactions and net primary production within the ecosystem. However, studies modeling spatiotemporal variations in leaf coloring date (LCD) remain limited, especially for ... -
Influence of temperature, salinity and Mg:Ca ratio on microbially-mediated formation of Mg-rich carbonates by Virgibacillus strains isolated from a sabkha environment.
( Nature Research , 2019 , Article)Studies have demonstrated that microbes facilitate the incorporation of Mg into carbonate minerals, leading to the formation of potential dolomite precursors. Most microbes that are capable of mediating Mg-rich carbonates ... -
Gut Microbiota Dysbiosis and Their Impact on Biochemical and Inflammatory Profiles in Cafeteria Diet Fed Sprague Dawley Rats
( Scientific Research Publishing , 2019 , Article)Gut microbiota plays a major role in regulating the host metabolism and immune system. However, the structure of microbiome population is altered constantly by diverse factors including diet and environment. In particular, ... -
Gut Microbiota and Health: Understanding the Role of Diet
( Scientific Research Publishing , 2019 , Article Review)Microbiome now is considered as an organ within our system to regulate metabolism, cellular immune response and eventually maintain the health. Gut microbiota has been studied extensively in the recent past due to the ... -
The replacement of five consecutive amino acids in the cyt1a protein of bacillus thuringiensis enhances its cytotoxic activity against lung epithelial cancer cells
( MDPI AG , 2018 , Article)Cyt1A protein is a cytolytic protein encoded by the cyt gene of Bacillus thuringiensis subsp. israelensis (Bti) as part of the parasporal crystal proteins produced during the sporulation. Cyt1A protein is unique compared ... -
Tundra Trait Team: A database of plant traits spanning the tundra biome
( Blackwell Publishing Ltd , 2018 , Article)Motivation: The Tundra Trait Team (TTT) database includes field-based measurements of key traits related to plant form and function at multiple sites across the tundra biome. This dataset can be used to address theoretical ...
