conclusions the findings of the meta-epidemiological study support that ebv infection may increase the risk of breast cancer. nested case-control studies are required in the future. results a total of 20 case-control studies were selected, and the total numbers of subjects in the case and control groups were 1947 and 1010, respectively. the findings of this meta-analysis revealed that ebv infec...

background: the current study was performed to identify the association between major dietary patterns, general and central adiposity among female teachers in tehran. methods: in this cross-sectional study, 486 female teachers aged 40-60 years were selected by multistage cluster random sampling method in tehran. usual dietary intakes were evaluated using a semi-quantitative food frequency quest...

the rapid rate of population growth in developing countries leads to imbalances development in various urban levels. the trend of urban sustainability is declined due to these imbalances. this declination increases concerns of urban planners to improve the sustainability of urban environments. being aware of sustainability level of urban intervention areas before doing any action is inevitable....

zygophyllum atriplicoides is one of the important species of iran rangelands that has special importance owing to some properties like high distribution rate, coverage percentage, density, and plant biomass that make it possible to supply a part of forage needed by livestock during spring and winter as well as to avoid soil degradation against water and wind erosions. this research tries to stu...

results the results show that the individual and demographic factor (idf), organizational factor (of), h & s training factor (tf), workplace-human factor (whf), factor related to type of accident occurrence (taf), h & s risk management system factor (rmsf), and accident time factor (atf) were considered to be effective and significant independent latent factors in occupational injuries. conclus...

an interface part is used between clutch pedal and clutch cable in peugeot, samand, rd and peugeot pars. this part is consisted of two pieces. the main body is made of polyamide 6.6 and the second part is made of ck45.due to the fact that the two pieces are made of different assembling geometry with respect to each other, therefore, has caused performance problems which may result in clutch cab...

objectives: there have been numerous attempts to construct non-monetary indices of social and economic satisfaction by combining in a single statistic a variety of different factors that are thought to influence human well-being. method: the concept of quality of life (qol) as an aggregate measure of people’s well-being in a certain country, region, or social stratum. the economist intelligence...

relationships between soil factors and vegetation types in playa of damghan was investigated. six vegetationtypes including artemisia.sieberi, arundo. sp, artemisia.sieberi-peganum.harmala, alhagi.cammelerom,artemisia.sieberi-petropyron.sp, tamarix.passerinoides-halocnemum strobilaceum. one bare land was recognized inthe study area and the research was conducted within mentioned types. canopy p...

heavy metal contamination around the national iranian lead and zinc company (nilz) in zanjan province was evaluated in this paper. collected data were used to appraise the degree of soil contamination and also the source of pollution in the study area based on geoaccumulation index (igeo), and enrichment factor (ef). the levels of fe, zn, cd and pb in the samples exceed those reported in litera...

numbers of persian leopards have considerably decreased in recent years and for this reason it has been categorized as endangered in the iucn classification. habitat destruction is believed to be the main cause of the species population decline. hence, attempts to preserve the remaining habitats of this kind of animal effectively are deemed essential in reversing its downgrading trend. to hit t...