The production of Shiga toxin (Stx) (verocytotoxin) is a major virulence factor of Escherichia coli O157:H7 strains (Shiga toxin-producing E. coli [STEC] O157). Two types of Shiga toxins, designated Stx1 and Stx2, are produced in STEC O157. Variants of the Stx2 type (Stx2, Stx2c) are associated with high virulences of these strains for humans. A bacteriophage designated 2851 from a human STEC O...

A bacteriophage encoding the Shiga toxin 2c variant (Stx2c) was isolated from the human Escherichia coli O157 strain CB2851 and shown to form lysogens on the E. coli K-12 laboratory strains C600 and MG1655. Production of Stx2c was found in the wild-type E. coli O157 strain and the K-12 lysogens and was inducible by growing bacteria in the presence of ciprofloxacin. Phage 2851 is the first repor...

We characterize a DNA segment of the Euglena gracills chloroplast DNA fragment Eco-N by nucleotlde sequencing and SI nuclease analysis. We show that this region, which is upstream of the previously sequenced tuf A gene, contains the genes for the ribosomal proteins S12 and S7. The gene arrangment is 5'-rps 12-80 bp spacer-rps 7-174 bp 3pacer-tuf A, somewhat similar to the str operon of E. coll....

I have studied the variability properties and localization of 3EG J1746-2851 based on EGRET data of the observing periods 1–4. Using corrections for know systematic problems and performing various consistency checks I find no evidence of variability with an amplitude exceeding 30% with the possible exception of viewing period 429, for which a strong soft excess is observed. 3EG J1746-2851 is di...

Using cumulant expansion for an averaged Wilson loop we derive an action of the gluodynamics string in the form of a series in powers of the correlation length of the vacuum. In the lowest orders it contains the Nambu–Goto term and the rigidity term with the coupling constants computed from the bilocal correlator of gluonic fields. Some higher derivative corrections are calculated. ∗E-mail: ant...

Abstract After morphological classification of 18,190 12 CO molecular clouds, we further investigate the properties their internal gas structures traced by 13 ( J = 1−0) line emissions. Using three different methods to extract within each cloud, find that ∼15% clouds (2851) have and these contribute about 93% total integrated flux emission. In 2851 with structures, emission area generally does ...

http://dx.doi.org/10.1016/j.eswa.2014.11.032 0957-4174/ 2014 Elsevier Ltd. All rights reserved. ⇑ Corresponding author. Tel.: +90 533 845 2320. E-mail addresses: [email protected] (S. Monghasemi), nikoo@ shirazu.ac.ir (M.R. Nikoo), [email protected] (M.A. Khaksar Fasaee), [email protected] (J. Adamowski). 1 Tel.: +98 711 647 3497; fax: +98 711 647 3161. 2 Tel.: +98 936...

OBJECTIVE To illustrate the method of cohort reporting of persons with diabetes mellitus (DM) in a primary healthcare clinic in Amman, Jordan, serving Palestine refugees with the aim of improving quality of DM care services. METHOD A descriptive study using quarterly and cumulative case findings, as well as cumulative and 12-month analyses of cohort outcomes collected through E-Health in UNRW...

Food allergy can result in life-threatening anaphylaxis. Atopic dermatitis (AD) causes intense itching and impaired quality of life. Previous studies have shown that patients with classical early-onset AD tend to develop food allergy and that 10% of adults with food allergies have concomitant AD. However, it is not known whether late-onset food allergy leads to adult-onset AD, a recently recogn...

Andrew M. Naidech, MD, MSPH; Kurt T. Kreiter, PhD; Nazli Janjua, MD; Noeleen D. Ostapkovich, MS; Augusto Parra, MD, MPH; Christopher Commichau, MD; Brian Fred M. Fitzsimmons, MD; E. Sander Connolly, MD; Stephan A. Mayer, MD From the Departments of Neurology (A.M.N., K.T.K., N.J., N.D.O., A.P., C.C., B.-F.M.F., S.A.M.) and Neurosurgery (A.P., C.C., B.-F.M.F., E.S.C., S.A.M.) Columbia University ...