background: ototoxic chemicals can impair the sense of hearing and balance. in the past decades, the ototoxicity of solvents and their interaction with noise have become evident. this study has been carried out in the shoe manufacturing factory in tehran (iran) with the aim of evaluating the combined effects of noise and toluene on the workers' hearing. materials and methods: this cross-se...

introduction: musculoskeletal disorders are the major causes of occupational diseases in the work places and they are the most important cause of disability and absenteeism. for the prevention of these disorders and improvement of working, it is necessary to use ergonomics assessment techniques. this study aimed to assess ergonomic risk factors for musculoskeletal disorders in construction work...

the most important factor in evaluating dental health is dmft (decayed, missing, filled, teeth). this research was conducted to compare dmft index in the workers of sweets and cable factories of shahrood (moghan), a small city near 300 km east of tehran. all the 127 production line workers of cable factory and 124 workers of sweets factory who had the predetermined criteria were selected. a que...

a survey on lead intoxication in lead mine workers was carried out among khanehsorme, lead miners in najafaabad and also in ab-bagh lead miners in shahreza, both located in district of esfahan, iran. the studies were carried out on 62 miners out of 82 employees in khanehsorme, 25 miners out of 27 employees in ab-bagh lead miners and 47 rural inhabitants in the surroundings of mines were selecte...

background: varicella zoster virus (vzv) infection is one of the nosocomial infections and healthcare workers (hcws) are at high risk group who work in the hospital with likelihood of varicella acquisition or transmission. this study evaluated the vzv seroprevalence in this high risk population in babol, iran. methods: serological testing for vzv using enzyme linked immunosorbent assay (elisa) ...

background: an important factor in the prevention of industrial accidents is the ability of employees to maintain awareness of the work situation, understand the information it holds, and predict how situations will develop. in the present study, we examined the role of fatalistic beliefs and safety climate in predicting occupational situation awareness (sa) among workers.   materials and metho...

This study reports on a survey conducted to explore the awareness and extent of utilization of The Essential Electronic Agricultural Library (TEEAL) database resources by academic staff at the faculty of Agriculture, University of Calabar, Nigeria. Structured Questionnaire was designed and used for data collection. Eighty copies of the questionnaire were randomly distributed to respondents in t...

A small cationic peptide (JH8944) was tested for activity against a number of pathogens of agricultural crops. JH8944 inhibited conidium growth in most of the tested plant pathogens with a dose of 50 μg/ml, although one isolate of Fusarium oxysporum was inhibited at 5 μg/ml of JH8944. Most conidia of Fusarium graminearum were killed within 6 hours of treatment with 50 μg/ml of JH8944. Germinati...

BACKGROUND In acute-care hospitals, no evidence of a protective effect of healthcare worker (HCW) vaccination on hospital-acquired influenza (HAI) in patients has been documented. Our study objective was to ascertain the effectiveness of influenza vaccination of HCW on HAI among patients. METHODS A nested case-control investigation was implemented in a prospective surveillance study of influe...

The importance of the nitrate (NO3-) transporter for yield and nitrogen-use efficiency (NUE) in rice was previously demonstrated using map-based cloning. In this study, we enhanced the expression of the OsNRT2.1 gene, which encodes a high-affinity NO3- transporter, using a ubiquitin (Ubi) promoter and the NO3--inducible promoter of the OsNAR2.1 gene to drive OsNRT2.1 expression in transgenic ri...