BACKGROUND One in three young people use cannabis in Canada. Cannabis use can be associated with a variety of health problems which occur primarily among intensive/frequent users. Availability and effectiveness of conventional treatment for cannabis use is limited. While Brief Interventions (BIs) have been shown to result in short-term reductions of cannabis use risks or problems, few studies h...

in this paper, the present state of knowledge about axial mixing in gasliquid reactors is reviewed. a brief outline of the methods for measuring residence time distribution(rtd)of various phases in a multiphase reactor is presented. this is followed by a short description of differential and stage-wise models for characterizing back mixing from rtd measurments. backmixing characteristics of som...

ju xtacorticul sarcomas arc rare tumors. thev arc remarkable for their slow evolution . a short review of the literatu re and a brief description of this enti ty is presented together with our observation concerning one case seen at the tadj pahlavi institute tehran university. an interesting observation was the pa rticularly slow evo lu tion o r is yea rs duration in our .casc .

Weed species Anoda cristata, Ipomoeahederacea,and I. trilobaare reported for the first time for the flora of Iran. Trianthema portulacastrum, andMerremiadissecta, which have been previously reported as a doubtful and an ornamental species respectively from non-agricultural areas, are recorded for the first time from arable and farmlands of the country. Exact localities, crops, distribution, ill...

As Medical sciences become more advanced andgrow each day, so do the challenges of medicaleducation. To overcome the new obstacles whichare an inseparable part of science evolution, it isnecessary to renew and improve the educationalsystem .Achieving this, requires individuals whoare educated in the new methods of learning andtherefore can lead others through educationalsystem development. Duri...

presenting a brief description of bilingualism and its correlation with cognitive development and 3rd language learning, the present research primarily aims to compare the knowledge of english vocabulary and grammar in a sample of monolingual and bilingual high school students (fourth graders) of fars and khuzestan provinces in iran. to fulfill this objective, 448 monolingual and bilingual stud...