objective: high prevalence of tobacco consumption in childbearing ages is an important topic of consideration as its ill effects have influences on fertility. worldwide studies have shown that general knowledge on fertility issues is low. aim of the current study was to assess tobacco harm knowledge and attitude in infertile couples referring to the avicenna center. materials and methods: this ...

Floral fragrance is responsible for attracting pollinators as well as repelling pathogens and pests. As such, it is of immense biological importance. Molecular dissection of the mechanisms underlying scent production would benefit from the use of model plant systems with big floral organs that generate an array of volatiles and that are amenable to methods of forward and reverse genetics. One c...

background: tobacco smoking is the leading cause of preventable mortality. the prevalence of smoking in adolescents in high schools ranges from 23.5% to 41%, respectively. in colombia, these figures are similar and students entering the university are exposed to initiate smoking. the purpose of this study was to establish the determinants associated with the initiation of tobacco smoking among ...

one of the best strategies to control bacterial wilt caused by ralstonia solanacearum (smith) is generally based on breeding resistant cultivars. the information obtained from the expression of plant defense genes will provide new insight for improving plant resistance against pathogens. this study was to identify inducible genes under defense no death (dnd) reaction of tobacco (nicotiana tabac...

conclusions the findings of this study indicated that all tpb variables are useful tools for prediction of the smoking behaviors among students. particularly, students’ perceived behavioral control and attitudes towards smoking were found to be important determinants of smoking intentions. thus, the findings could be used for planning effective tobacco control programs targeting university stud...

OBJECTIVE To assess the mortality currently associated with smoking in Hong Kong, and, since cigarette consumption reached its peak 20 years earlier in Hong Kong than in mainland China, to predict mortality in China 20 years hence. DESIGN Case-control study. Past smoking habits of all Chinese adults in Hong Kong who died in 1998 (cases) were sought from those registering the death. SETTING ...

Objective To assess the mortality currently associated with smoking in Hong Kong, and, since cigarette consumption reached its peak 20 years earlier in Hong Kong than in mainland China, to predict mortality in China 20 years hence. Design Case-control study. Past smoking habits of all Chinese adults in Hong Kong who died in 1998 (cases) were sought from those registering the death. Setting All ...

background: presently, the british-american tobacco company (bat) located in ibadan, oyo state is the only tobacco producing company in nigeria accounting for about nine different brands of cigarette tobacco smoked in the country. the tobacco leaves are produced from some farmlands located in oke-ogun area of ibadan where special fertilizers are used for the growing of the tobacco leaves. the u...

to assess the genetic diversity for morphological and agronomic traits in iranian oriental tobacco germplasm,100 oriental and semi-oriental tobacco genotypes from the urmieh tobacco research center collection were evaluated in the field using a simple square lattice design with two replications. some agronomic traits were measured on five randomly selected plants in each plot. genotypes were cl...