BACKGROUND A high rate of resistance to 3rd generation cephalosporins among Enterobacteriaceae isolates from Egypt has been previously reported. This study aims to characterize the resistance mechanism (s) to extended spectrum cephalosporins among resistant clinical isolates at a medical institute in Cairo, Egypt. METHODS Nonconsecutive Klebsiella pneumoniae (Kp), Enterobacter cloacae (ENT) a...

AIM To compare the efficacy of manual and oscillating-rotating electric toothbrushes in removing plaque and reducing gingivitis in patients with fixed orthodontic appliances. STUDY DESIGN Randomised clinical trial. MATERIALS AND METHODS 20 subjects aged 10 to 14 years (8 males; 12 females) scheduled for fixed orthodontic treatment were enrolled, randomly divided into two groups, A and B, an...

Although indirect immunofluorescent antibody tests (IFAT) have been developed for several arenaviruses, none has been applied to the rhesus monkey model for Bolivian hemorrhagic fever (caused by the arenavirus Machupo). We infected eight rhesus monkeys with Machupo virus and bled them weekly for determination of viremia and for serum antibody detection by IFAT and serum neutralization (SN) test...

R is called commuting regular ring (resp. semigroup) if for each x,y $in$ R there exists a $in$ R such that xy = yxayx. In this paper, we introduce the concept of commuting $pi$-regular rings (resp. semigroups) and study various properties of them.

In a host-range study carried out under greenhouse conditions, a total of 37 commercial fruit tree, grape, and citrus rootstocks were tested for their reaction to a population of the lesion nematode, Pratylenchus vulnus, in Spain. Twenty-five rootstocks had a Pf/Pi > 1.5. These included almond (Desmayo Rojo, 1143), apple (EM-9, EM-106), avocado (Hass), cherry (Santa Lucia 64, Camil, M x M 14, M...

A comprehensive study has been performed to estimate the kaon pion ( $$K^\pm$$ / $$\pi ^\pm$$ ) and total (K/ $$\pi$$ yield ratios as a function of centre mass energy in pp collisions at different energies, i.e. $$\sqrt{\mathrm {s}}$$ = 6.3, 17.3, 62.4, 200, 900 GeV, 2.76 TeV, 7 13 TeV 14 using EPOS1.99, EPOS-LHC, HIJING, QGSJETII-03 Sibyll2.3d model simulations. NA61/SHINE experiment reported ...