Yersinia enterocolitica serotype O:9 is a gram-negative enteropathogen that infects animals and humans. The role of lipopolysaccharide (LPS) in Y. enterocolitica O:9 pathogenesis, however, remains unclear. The O:9 LPS consists of lipid A to which is linked the inner core oligosaccharide, serving as an attachment site for both the outer core (OC) hexasaccharide and the O-polysaccharide (OPS; a h...

OBJECTIVES To investigate cooperation between occupational physicians (OPs) and general practitioners (GPs). METHODS Literature review; structured interviews; questionnaires sent to randomised samples of OPs (n = 232) and GPs (n = 243). RESULTS Actual cooperation is poor. However, more than 80% of both groups responded that they want to improve their cooperation, aiming at better quality of...

BACKGROUND The provision of occupational health (OH) services to the UK population is limited and concentrated in certain industries. Occupational physicians (OPs) therefore see a different subset of the population than general practitioners (GPs) and their recognition of work-related ill health may differ. AIMS To examine how reports submitted by OPs and GPs compare and to discuss how biases...

BACKGROUND For the detection of respiratory pathogens, the sampling strategy may influence the diagnostic yield. Ideally, samples from the lower respiratory tract are collected, but they are difficult to obtain. OBJECTIVES In this study, we compared the diagnostic yield in sputum and oropharyngeal samples (OPS) for the detection of respiratory pathogens in patients with community-acquired pne...

A ncw approach to on-orbit satellite sensor calibration has becJl developed using the flight of a high altitude calibrated airborne imaging spectrometer below a multi-spectral satellite sensor. This strategy was in~plcrncnted on the 27th of August 1992 for the Optical Sensor (OPS) on board the Japanese Earth Rcsourccs Satellite-1 (JERS1 ) using NASA’s Airborne Visible-Infrared lmag,ing Spectrom...

BACKGROUND Within a clinical context e-learning is comparable to traditional approaches of continuing medical education (CME). However, the occupational health context differs and until now the effect of postgraduate e-learning among occupational physicians (OPs) has not been evaluated. AIM To evaluate the effect of e-learning on knowledge on mental health issues as compared to lecture-based ...

The transcriptional regulatory protein RfaH controls expression of several operons that encode extracytoplasmic components in bacteria. Regulation by RfaH occurs during transcript elongation and depends on a 5'-proximal, transcribed nucleic acid sequence called ops that induces transcriptional pausing in vitro and in vivo. We report that RfaH recognizes RNA polymerase transcribing RfaH-regulate...

OBJECTIVES Our study determined whether depth perception defects and hand-eye dominance affect an individual's ability to perform laparoscopic skills. METHODS The study cohort comprised 104 third-year medical students from LSU School of Medicine who completed a questionnaire including information on handedness and were tested for eye dominance and depth perception by using standardized method...

The transfer (accretion) of materials from a subducting oceanic plate to a subduction-accretionary complex has produced rock assemblages recording the history of the subducted oceanic plate from formation to arrival at the trench. These rock assemblages, comprising oceanic igneous rocks progressively overlain by pelagic sedimentary rocks (chert and/or limestone) and trench-fill clastic sediment...

The electroretinogram (ERG) is composed of slow (i.e., a-, b-waves) and fast (i.e., oscillatory potentials: OPs) components. OPs have been shown to be preferably affected in some diseases (such as diabetic retinopathy), while the a- and b-waves remain relatively intact. The purpose of this study was to determine the contribution of OPs to the building of the ERG and to examine whether a signal ...