in this paper a discrete big bang-big crunch algorithm is applied to optimal design of reinforced concrete planar frames under the gravity and lateral loads. optimization is based on aci 318-08 code. columns are assumed to resist axial loads and bending moments, while beams resist only bending moments. second-order effects are also considered for the compression members, and columns are checked...

conclusions to promote the effect of printed images on cigarette packages, it is recommended to consider the suitability of labels in the targeted culture. in addition, to be more effective consultation sites to quit smoking should be introduced under the images. background health warning labels on cigarette packages are among the most straightforward and important tools to communicate with smo...

background recent studies show that the prevalence of tobacco use among teens and students is increasing, and the initiation age of tobacco use has decreased. objectives the current research aimed to signify the role of schools in the process in which student teenage boys became smokers in 2012 in mashhad. materials and methods the current study was part of a qualitative research conducted by c...

background: tobacco use has toxic effects on different organs. this study was carried out to assess the effect of indigenous tobacco both in smoking (bidi) and smokeless (gutkha, zarda and khaini) forms on buccal cells at chromosomal level, through assessment of different nuclear anomalies as biomarker. methods:this study was done on people living in durgapur and its adjacent areas, west bengal...

topping stage of tobacco is a key time for development of agriculture measures to promote the quality of leaves. in order to investigating influence of topping timing and suckericide content on tobacco leaf, a factorial experiment on the basis of rcb design with 3 replications was conducted in 2011 at the tobacco research farm of isfahan. treatments were including topping time (t1: topping at e...

Background: To define underlying predictors of tobacco smoking among Iranian Teenagers in a generalized structural equation model. Materials and Methods: In this cross-sectional study, a Generalized Structural Equation Model based on planned behavioral theory was used to explain the relationship among different factors such as demographic factors, subjective norms, and the intention to tobacco ...

This special issue of Tobacco Control for World No Tobacco Day is focused on the theme of Price and Trade. Last year, Dr Margaret Chan of the WHO called on countries to increase tobacco taxes to combat the tobacco epidemic. Chan observed that “raising taxes on tobacco is the most effective way to reduce use and save lives” (Ibid). She commented that “determined action on tobacco tax policy hits...

The big bang-big crunch (BB-BC) algorithm is a popular metaheuristic optimization technique proposed based on one of the theories for the evolution of the universe. The algorithm utilizes a two-phase search mechanism: big-bang phase and big-crunch phase. In the big-bang phase the concept of energy dissipation is considered to produce disorder and randomness in the candidate population while in ...

Topping stage of tobacco is a key time for development of agriculture measures to promote the quality of leaves. In order to investigating influence of topping timing and suckericide content on tobacco leaf, a factorial experiment on the basis of RCB design with 3 replications was conducted in 2011 at the Tobacco Research Farm of Isfahan. Treatments were including topping time (T1: t...