clostridium perfringens is an important cause of bacterial food poisoning worldwide. the disease is caused by c. perfringens enterotoxin (cpe) encoded by cpe gene. the aim of this research was to identify the different types of c. perfringens and the presence of cpe gene in isolated bacteria from broilers’ meat marketed in retail meat shops of mashhad city in northeastern of iran. after isolati...

By using staggering magnets, we obtain a particular type of magneting bearings, owning very interesting properties : plane gap, null axial force, and absence of coupling produced by magnetization non-homogeneities. These bearings are well adapted for low rotational speed systems, and for partially-magnetic suspensions.

Type IV thoracoabdominal aortic aneurysms (TAAAs) affect the aorta between the diaphragm and aortic bifurcation (Fig. 1). For technical reasons, the aneurysms affecting only the part of aorta from which visceral arteries arise are also categorized as type IV. The level of difficulty of surgical treatment for type IV TAAAs lies between that of type II, which involve descending thoracic and abdom...

in order to achieve a long-lasting effect, one of the main goals in root canal treatment is to eliminate the endodontic bacteria. conventional chemomechanical debridement is considered as the basic treatment in root canal therapy, but adjunctive techniques such as antimicrobial photodynamic therapy (apdt) can also be helpful. the aim of this study was to evaluate reports in the scientific liter...