Background: Shiga toxin-producing Escherichia coli (STEC) are group of E. coli causing bloody diarrhea. The goal of this survey was to determine the prevalence of multidrug resistant shiga toxin-producing E. coli in cattle meat and its contact surfaces. Methods: Swab samples (n=120) were randomly collected from meat and contact surface of butchery shops in Sharkia province, Egypt. Prevalence o...

implementing infrastructures of e-marketing has been considered in this study. they are classified into external (related to government) and internal (related to enterprise) categories based on the factors’ level and are classified into strategic and operational categories based on the factors’ nature. 35 factors have been finalized as the basis of the questionnaire. the importance and position...

molana' s school of mystical thinking is deemed to be thoroughly independent from that of ibn-e arabi. to simply demonstrate that molana visited ibn-e arabi in damascus ( at the time when molana was young and the latter quite old), and that molana associated with and developed friendship with sadr-e ghunavi ( the greatest advocate of ibn-e arabi), and that they shared common viewpoints are...

Abstract. A topological group H is called ω -narrow if for every neighbourhood V of it’s identity element there exists a countable set A such that V A = H = AV. A semigroup G is called a generalized group if for any x ∈ G there exists a unique element e(x) ∈ G such that xe(x) = e(x)x = x and for every x ∈ G there exists x − 1 ∈ G such that x − 1x = xx − 1 = e(x). Also le...

Biharmonic surfaces in Euclidean space $mathbb{E}^3$ are firstly studied from a differential geometric point of view by Bang-Yen Chen, who showed that the only biharmonic surfaces are minimal ones. A surface $x : M^2rightarrowmathbb{E}^{3}$ is called biharmonic if $Delta^2x=0$, where $Delta$ is the Laplace operator of $M^2$. We study the $L_k$-biharmonic spacelike hypersurfaces in the $4$-dimen...