Biological & Environmental Sciences: المرسلات الحديثة
السجلات المعروضة 761 -- 780 من 920
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Towards novel Cry toxins with enhanced toxicity/broader: a new chimeric Cry4Ba / Cry1Ac toxin
( Springer-Verlag , 2017 , Article)Attempts have been made to express or to merge different Cry proteins in order to enhance toxic effects against various insects. Cry1A proteins of Bacillus thuringiensis form a typical bipyramidal parasporal crystal and ... -
Cry1Ac toxicity enhancement towards lepidopteran pest Ephestia kuehniella through its protection against excessive proteolysis
( Elsevier , 2016 , Article)Bacillus thuringiensis has been extensively used in agroecosystems for four decades due to its high specific toxicity. Strategies based on B. thuringiensis proteins combinations for the improvement of its activity present ... -
Toxin stability improvement and toxicity increase against dipteran and lepidopteran larvae of Bacillus thuringiensis crystal protein Cry2Aa
( Wiley , 2016 , Article)BACKGROUND Bacillus thuringiensis δ-endotoxins are the most widely used biopesticides for controlling economically important crop pests and disease vectors. Improving their efficacy is of great benefit. Here, an improvement ... -
Low electro-synthesis potentials improve permselectivity of polymerized natural phenols in biosensor applications
( Elsevier , 2017 , Article)First-generation amperometric biosensors are often based on the electro-oxidation of oxidase-generated H2O2. At the applied potential used in most studies, other molecules such as ascorbic acid or dopamine can be oxidized. ... -
Adsorption of ochratoxin A from grape juice by yeast cells immobilised in calcium alginate beads
( Elsevier , 2016 , Article)Grape juice can be easily contaminated with ochratoxin A (OTA), one of the known mycotoxins with the greatest public health significance. Among the different approaches to decontaminate juice from this mycotoxin, microbiological ... -
First record of microsporedean and myxosporeans (Protozoa) infecting some Arabian Gulf fish off the coasts of Emirates and Qatar with a description Myxobolus arabicus n.sp
( Arabian Gulf University , 2002 , Article)During a comprehensive survey carried out on helminth parasites of Arabian Gulf fishes mainly from the coasts of the Emirates and Qatar, two microsporeans and three myxosporeans Protozoa were reported and described for the ... -
Monogenea of Arabian Gulf fishes. 3. Encotyllabe spari and E. kuwaitensis (Capsalidae) from Qatari waters
( Instituto di Parassitologia Medica , 2002 , Article)Two species of monogenea of the subfamily Encotyllabinae, genus Encotyllabe were observed from Qatari fishes which collected between March and May, 2002 from 5 Khors of Qatari coastal line; Al-Odaid, al-Dhakhira, Ras Rakan, ... -
Helminth parasite larvae collected from Arabian Gulf Fish. 4. description of 4 larvae including two metacercarae, one didymozoid and one acanthocephalan from Emirati coasts
( Arabian Gulf University , 2005 , Article)Four hilminth larvae from different fish hosts caught from Emirati coasts are described. Two are metacercariae related to genus Stephanostomum, type (I) and (II). Type (I) was found encycsted in body cavities of the Indian ... -
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 ... -
Redesciption of Ten species of digenetic trematodes from marine fish of Emirati coastsof the Arabian Gulf
( Arab Bureau of Education for the Gulf States , 2003 , Article)Ten species of digenetic trematodes are fully described from fishes of the United Arab Emirates. These specimens, which have been previously described in a list which comprised different helminth fauna, commonly infest ... -
Helminth parasite larvae collected from Arabian Gulf fish III. first report on genus Dasyrhynchs Pintner 1928 (Cestoda: Trypanorhyncha) with a key depending on morphology of plerocercoid larva
( Universita Di Messina, Istituto Di Parassitologia Medica , 2003 , Article)Two trypanorhynchan cestode larvae related to genus Dasyrhynchus are reported for the first time from Emirati coastal waters, Arabian Gulf. The first is Dasyhynchus sp. collected as encysted. larvae from body cavity of ... -
Monogenea of Arabian Gulf fishes 1. Descriptions of three Capsala spp. (Capsalidae) including Capsala naffari n. sp. infecting mackerel tuna Euthynnus affinis from coasts of Emirates
( Elsevier , 2002 , Article)Three species of the genus Capsala including Capsala naffari n. sp., C. neothunni (Yamaguti, 1968) and C. nozawae (Goto, 1894) are recorded and described from the buccal cavity of mackerel tuna Euthynnus affinis caught ... -
Helminth parasites of fishes from the Arabian Gulf 9. some hemiurids (Digenea) from fishes of Qatari waters
( Istituto di Parassitologia Medica , 2001 , Article)Four Hemiurids collected from some marine fishes caught off Qatari waters int he Arabian Gulf are described and compared with related species previously reported from the Arabian Gulf and the Indian Ocean. These include ... -
Helminth parasite larvae collected from Arabian Gulf fish II. first record of some trybanorhynch cestode from economically important fish
( Arab Bureau of Education for the Gulf States , 1999 , Article)Metacestodes of 14 different trypanorhynch larvae were found infesting Arabian Gulf economically important fish along the coasts of the United Arab Emirates. Except for Grillotia and Pterobothrium, all other larvae were ... -
First report of some adult mosquitoes captured by CDC gravid traps from North-Eastern Qatar
( Elsevier , 2016 , Article)ObjectiveTo report six species of female mosquitoes caught in CDC gravid traps for the first time in Qatar. MethodsFive traps were installed in Al-Khor community, north-eastern Qatar during the outbreak season between ... -
Additional records of vector mosquito diversity collected from Al Khor district of North-eastern Qatar
( Elsevier , 2015 , Article)ObjectiveTo survey mosquito diversity in the north-eastern area, which includes the most important gas industrial city in Qatar, and to investigate the potential mosquitoes for transmitting diseases. MethodsA study was ... -
FIRST RECORD OF SOME AQUATIC FAUNA COLLECTED FROM QATARI INLAND WATERS WITH REFERENCE TO ARABIAN PENINSULA
( International Journal of Current Research , 2016 , Article)One of the man-made wetland fauna from September 2010 up to June 2013 during random intervals. The investigations have revealed 24 species of macroinvertebrates: one Rotifer, 3 gastropods, one Notostracan, 2 Ostracods, 2 ... -
Exploring Sheraoh Island at South-Eastern Qatar: First Distributional Records of Some Inland and Offshore Biota with Annotated Checklist
( OMICS International , 2016 , Article)Sheraoh island is the most remote among Qatari islands, nearly 73.5 km south-eastern of the mainland of the peninsula. In March 2010, a preliminary general survey of the species was conducted. Observations were made ... -
Disinfection by-products of chlorine dioxide (chlorite, chlorate, and trihalomethanes): Occurrence in drinking water in Qatar
( Elsevier , 2016 , Article)The occurrence of chlorine dioxide (ClO2) disinfection by-products (DBPs) in drinking water, namely, chlorite, chlorate, and trihalomethanes (THMs), was investigated. Two-hundred-ninety-four drinking water samples were ... -
Multivariate analysis of competitive adsorption of food dyes by activated pine wood
( Taylor & Francis , 2016 , Article)In this work, competitive adsorption of four food dyes (Sunset Yellow, Allura Red, tartrazine, and Brilliant Black) by heated pine wood is studied using multivariate calibration. Partial least squares PLS1 and principal ...
