INTRODUCTION S. aureus is of great importance to public health due to its pathogenicity. This study aimed to evaluate lipase production by S. aureus isolates from different sources. METHODOLOGY Lipolytic activity was determined using Tween-Calcium agar (48 hours; 35°C). RESULTS Eighty-six percent of the isolates from human wounds were positive for lipase production. The frequencies of isola...

Listeria monocytogenes is an important pathogen responsible for major outbreaks associated with food products. Adhesion to surfaces leads to significant modifications in cell physiology. The aim of this work was to determine the adhesion ability of 10 isolates of L. monocytogenes to eight materials commonly used in kitchens and to evaluate the viability of the adhered cells. The materials assay...

This paper uses ALIS data to compare academic performance in two subjects often viewed as relatively close substitutes for one another at A-level. The important role of GCSE achievement is confirmed for both subjects. There is evidence of strong gender effects and variation in outcomes across Examination Boards. A counterfactual exercise suggests that if the sample of Business Studies candidate...

This paper presents two examples of contact dynamics simulations for space robotics application: Satellite docking in GEO and rover locomotion on planetary surfaces. The contact modeling techniques include a) contact between polygonal surfaces according to the elastic foundation model theory and b) contact between digital elevation grid surfaces and point cloud surfaces with application of Bekk...

Let $f$ be a Morse function on closed surface $\Sigma$ such that zero is regular value and admits neither positive minima nor negative maxima. In this expository note, we show $\Sigma\times \mathbb{R}$ an $\mathbb{R}$-invariant contact form $\alpha=fdt+\beta$ whose characteristic foliation along the section (negative) weakly gradient-like with respect to $f$. The proof self-contained gives expl...