human papillomavirus (hpv) has also been suggested as an etiology of esophageal squamous cell carcinoma (scc). the aim of this study was to investigate the prevalence of hpv infection in esophageal sccs in our region with strict contamination control to prevent false positive results. thirty cases of esophageal squamous cell carcinomas were chosen by simple random selection in a period of two y...

today, it has been confirmed that the viral infections play an important role in premature delivery and abortion. this study was carried out to determine the frequency rate of papilloma virus types 16 and 18 in pregnant women and their relationship with premature delivery and abortion. in this study, vaginal secretions were collected from pregnant women who had been referred to the women clinic...

background heat is a harmful factor in workplaces that causes physiologic and cognitive changes in workers. objectives the purpose of this study was to investigate the effect of cooling vest on heat strain and reaction time while wearing chemical-biological-nuclear protective clothes. methods twelve male students with mean age of 25 ± 2 and body mass index (bmi) of 23 ± 1.5 were recruited in th...

objectives: nouns and verbs are the central conceptual linguistic units of language acquisition in all human languages. while the noun-bias hypothesis claims that nouns have a privilege in children’s lexical development across languages, studies on mandarin and korean and other languages have challenged this view. more recent cross-linguistic naming studies on children in german, turkish, engli...

conclusions this study showed that cccdna can be detected in the plasma specimen of 17.9% of iranian treatment-naive patients with chronic hepatitis b infection. therefore, designing prospective studies focusing on the detection of cccdna in these patients would provide more information. results the mean (sd) age of the patients was 41.1 ± 12.4 years (range, 20 - 62 years). from a total of 106 ...

the main objective of the present work was to synthesis polyamide 6 through anionic polymerization of ε-caprolactam in an internal mixer. the reaction time and the rheological properties of samples during the polymerization were studied. the samples were characterized by thermo gravimetry analysis (tga), differential scanning calorimeter (dsc) and ft-ir spectrometer. the melt flow behavior and ...

background and objective: rapid diagnosis of pertussis is important for the timely isolation of the infection source and early prevention measures among the contact persons, especially among non-vaccinated infants for whom pertussis is life- threatening. materials and methods: targets is481 , is1001, bp0026 and human gapdh gene were used to develop a multiplex real- time pcr assay based on the ...