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Now showing items 21-30 of 48
Edge-maximal graphs without θ 7 -graphs
(
Tokyo University of Science
, 2011 , Article)
Let G(n; θ2k+1, ≥ δ) denote the class of non-bipartite θ2k+1-free graphs on n vertices and minimum degree at least δ and let f (n; θ2k+1, ≥ δ) = max{ε(G): G ∈ G(n; θ2k+1, ≥ δ)}. In this paper we determinj an upker bound ...
The Non-petroleum large scale industries in the Gulf Cooperation Council countries (GCC)
(
Association of American Geographers
, 2011 , Conference Paper)
Since the early 1970s, the GCC countries have adopted the industrial development strategy as a way to achieve the economic diversification instead of depending on the oil and gas exporting; the main source of their revenues. ...
Improvement of Bioinsecticides Production by Sporeless Bacillus thuringiensis strains in Response to Various Stresses in Low Cost Medium
(
Springer-Verlag
, 2011 , Article)
The use of bioinsecticides, particularly those produced by sporeless Bacillus thuringiensis strains, has been shown to be a good alternative in pest management. Two types of sporeless mutants were distinguished. The ...
Integration of a Recombinant Chitinase into Bacillus thuringiensis Parasporal Insecticidal Crystal
(
Springer-Verlag
, 2011 , Article)
Chitinases have been successfully used in combination with Bacillus thuringiensis delta-endotoxins forming crystals in order to enhance their insecticidal activities. In this context, we opted for promoting the chitinase ...
Relationship between plasmid loss and gene expression in Bacillus thuringiensis
(
Springer-Verlag
, 2011 , Article)
The large genome of Bacillus thuringiensis was shortened by provoking plasmid loss, and the effect of such loss on the expression of both chromosomal and plasmid-harboured genes was studied. It was evidenced that the genomic ...
Overproduction of Delta-Endotoxins by Sporeless Bacillusthuringiensis Mutants Obtained by Nitrous Acid Mutagenesis
(
Springer-Verlag
, 2011 , Article)
Asporogenic and oligosporogenic Bacillus thuringiensis mutants having the ability to overproduce insecticidal crystal protein were generated by using nitrous acid (50 mg/ml), as chemical mutagenic agent. Insecticidal crystal ...
العمالة في الصناعات التحويلية بدولة قطر بين هيمنة الوافدين وانزواء المواطنين
(
الجامعة الأردنية : عمادة البحث العلمي
, 2011 , Article)
تسعى دولة قطر ، شأنها شأن بقية دول مجلس التعاون لدول الخليج العربية ، لتحقيق أهداف متنوعة من خلال تبنيها إستراتيجية التنمية الصناعية ، ومن بينها بكل تأكيد توفير المزيد من فرص العمل لمواطنيها . ولكن على الرغم من مرور أكثر ...
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 ...
Regression estimator under inverse sampling to estimate arsenic contamination
(
John Wiley & Sons, Ltd
, 2011 , Article)
The fate of arsenic introduced to the environment as a result of the natural and human activities is an important issue. Surveys of arsenic typically involve sampling from a large area. Measuring arsenic concentrations in ...
Overcoming the production limitations of Photorhabdus temperata ssp. temperata strain K122 bioinsecticides in low-cost medium
(
Springer-Verlag
, 2011 , Article)
For low-cost production of Photorhabdus temperata ssp. temperata strain K122 bioinsecticide, a cheap complex medium was optimized. Diluted seawater was used as the source of micronutrients, especially sodium chloride, ...