background staphylococcus aureus is an important pathogen of humans in both community acquired as well as nosocomial infections. it is also among the four most common causes of food-borne illnesses. objectives this study was conducted to determine the prevalence of enterotoxin producing s. aureus strains in different raw meat and hamburgers in isfahan. materials and methods from august to decem...

Background: Repeated efforts by researchers to impose voice changes by laryngeal surface electrical stimulation (SES) have come to no avail. This present pre-experimental study employed a novel method for SES application so as to evoke the motor potential of the internal superior laryngeal nerve (ISLN) and create voice changes.Methods: Thirty-two normal individuals (22 females and 10 males) par...

BACKGROUND Sleep plays an important role in health and varies by social determinants. Little is known, however, about geographic variations in sleep and the role of individual-level and neighbourhood-level factors. METHODS We used a multilevel modelling approach to quantify neighbourhood variation in self-reported sleep duration (very short <5 h; short 5-6.9 h; normative 7-8.9 h; long ≥9 h) a...

Staphylococcus aureus and Streptococcus pyogenes are gram-positive bacteria that possess great pathogenic potential in humans, causing numerous maladies such as arthritis, cutaneous infections, endocarditis, enterocolitis, food poisoning, pharyngitis, pneumonia, rheumatic fever, surgical site infections, and toxic shock. These prevalent pathogens produce various virulence factors that include t...

We introduce the use of block copolymer membranes for an emerging application, "drug capture". The polymer is incorporated in a new class of biomedical devices, referred to as ChemoFilter, which is an image-guided temporarily deployable endovascular device designed to increase the efficacy of chemotherapy-based cancer treatment. We show that block copolymer membranes consisting of functional su...

background: socioeconomic status (ses) is a major determinant of health inequality in children and adolescents. the aim of this study was to evaluate the association of ses of family and living region with self-rated health (srh) and life satisfaction (ls) among children and adolescents.   methods: this study was a part of the fourth survey of a national surveillance program, which was conducte...

Heat-stable enterotoxins are the most notable virulence factors associated with Staphylococcus aureus, a common pathogen associated with serious community and hospital acquired diseases. Staphylococcal enterotoxins (SEs) cause toxic shock-like syndromes and have been implicated in food poisoning. But SEs also act as superantigens that stimulate T-cell proliferation, and a high correlation betwe...