Listeria monocytogenes is a foodborne pathogen causing listeriosis, especially in sensitive individuals such as children, pregnant women and persons with compromised immune systems. This pathogen has been isolated from different food products, but milk products surely play a major role in the epidemiology of this foodborne disease. identification traditionally involved culture methods based on ...

Nucleic acid sequence-based amplification (NASBA) was applied in combination with a fluorescein-conjugated molecular beacon specific for a sequence flanked by transcript-specific primers in order to monitor hblC enterotoxin gene expression in real-time from milk separately contaminated with Bacillus amyloliquefaciens, Bacillus cereus, and Bacillus circulans. Maximal enterotoxin expression was n...

هدف: با توجه به رشد روزافزون آموزش شیوه مجازی و ویژه در شرایط گسترش پاندمی کرونایروس، نقش اساسی مدیریت کلاسی ارتقا کیفیت باید مورد قرار گیرد این پژوهش هدف تدوین مدل رابطه علّی هدفمند کلاس وضعیت روان‌شناختی پیامدهای تحصیلی دانشجویان انجام شد. روش: روش بر حسب هدف، کاربردی ماهیت از نوع توصیفی - همبستگی بود. جامعه آماری مشتمل انواع مقاطع دانشگاه­ های دولتی پیام نور شهر تهران نمونه اساس جدول مورگان ب...

The environmental route of transmission is important for many protozoan and helminth parasites, with water, soil and food being particularly significant. Both the potential for producing large numbers of transmissive stages and their environmental robustness pose persistent threats to public and veterinary health. The introduction of molecular techniques, in particular those based on the amplif...