to investigate the impact of overexpression of atnrt2.1 transgene from arabidopsis on nitrate uptake rate and to understand the regulation of endogenous hats by nitrate and glutamine amino acid (gln) in tobacco plants, wild-type and transgenic (f line) plants grown on soil for 4 weeks were transferred to hydroponic culture in a controlled-environment with a 16/8h l:d photoperiod at 24? c/20...

conclusions the present study reports the characteristics of iranian hookah smokers. most hookah smokers were educated young adults, who often smoked at home or in teahouses and in the company of friends. the majority of the participants smoked fruit-flavored tobacco and had no desire or intention to quit smoking. further studies in this field are required and hookah smoking should also be inco...

a study was carried out in a strip of a river and in a nearby well in the rainy and dry seasons to assess the impact of tobacco waste disposal on the roadsides. there were significant seasonal variations in the concentration of nicotine being higher (p

an investigation was carried out to study the developmental time, reproduction and life table of three populations of the onion thrips, thrips tabaci lindeman, on onion (khorasan and golestan populations) and also on tobacco (mazandaran population) in the laboratory at 25â°c, 50% rh and 16: 8 h l: d. the total life cycle from egg to adult of khorasan, golestan and mazandaran populations were ga...

objective: micronuclei are induced in cells by a variety of substances, like uv radiation, infrared rays, x-radiations, and chemicals. among them tobacco- specific nitrosamines have been reported to be potent mutagenic agents which are thought to be responsible for the induction of chromosomal aberrations resulting in production of micronuclei. the main aim of our study is to compare mn frequen...

objective: the present study aimed to determine the frequency of drug abused in a sample of university students in rafsanjan, iran. methods: in this cross-sectional study, 1,260 students volunteered (311 males and 949 females) with mean age of 21.35 years. data were collected by a self-administrated questionnaire regarding drugs abuse and demographic information. results: benzodiazepines were t...

OBJECTIVE Post-secondary institutions provide a unique opportunity to implement and evaluate leading edge tobacco policies, while influencing a key group of young adults. To date, however, we know little about the tobacco control environment at post-secondary institutions outside the USA. DESIGN Telephone surveys were conducted with campus informants from 35 post-secondary institutions in Can...

OBJECTIVES To identify key themes related to tobacco advertising and promotion in testimony provided by tobacco industry-affiliated witnesses in tobacco litigation, and to present countervailing evidence and arguments. METHODS Themes in industry testimony were identified by review of transcripts of testimony in the Tobacco Deposition and Trial Testimony Archive (http://tobaccodocuments.org/da...

OBJECTIVE To assess whether tobacco content found in video games was appropriately labelled for tobacco-related content by the Entertainment and Software Ratings Board (ESRB). METHODS Sixty-five gamer participants (self-identified age range 13-50) were interviewed in-person (n=25) or online (n=40) and asked (A) to list favourite games and (B) to name games that they could recall containing to...

objective: infertility is an important social concern. environmental factors such as smoking and tobacco consumption can affect sperm and follicular function and infertility. smoke cessation reduces its complications and makes infertility treatment more effective which motivates and encourages infertile smokers to consider quitting. the aim of current study was to assess brief smoking cessation...