Levels of toxic substances in tobacco smoke are undeniably influenced by temperature-oxygen conditions in which the smoke is generated. These conditions depend on the way the cigarette is smoked (smoking topography). Smoking topography may be characterized by such factors as: puff volume and its velocity, intervals between puffs and a number of puffs per cigarette. Vast majority of formerly pub...

A substantial fraction of oxygen in diffuse clouds is unaccounted for by observations and postulated to be an unknown refractory form, referred as unidentified depleted (UDO), which, depending on the local gas density, may contribute up 50% total content. Previous Infrared Space Observatory (ISO) suggest that a significant even denser, translucent atomic form. We have analyzed velocity-resolved...

Background & Aims: An abstract is the best source of information within a content. The structured abstract is the best representation of the main source. Writing an appropriate abstract requires adherence to standards of abstracting. The aim of this study wasto investigate the compliance of Persian abstracts of research papers in medical journals of universities of medical sciences (type 1) wit...

sublingual nitroglycerin (tng) has been introduced as a promising provocative agent for tilt table testing, but it has not been compared directly with the standard isoproterenol (iso) infusion test previously. we tried to assess the diagnostic value and safety of tng tilt testing as compared with iso infusion in patients with unexplained syncope. tng and iso tilt tests were performed in two suc...

Computational Modelling is a resource hungry discipline requiring extensive expertise and large amounts of time. The ISO-STEP (International Standards Organisation Standard for the Exchange of Product Model data) is proposing an integrated product model for CFD applications. This paper presents a specification for a STEP compliant building product model for CFD analysis incorporating IBM’s Open...

university theses and dissertations are among those credible sources of information which, with regard to their given status of value, and the use of update resources using the international regulations and standards, can be perfect sources for optimal recovery of information and can increase the scientific credibility. this study reviews the accordance of the pharmaceutical theses of shahid be...