منابع مشابه
Aerosols containing Legionella pneumophila generated by shower heads and hot-water faucets.
Shower heads and hot-water faucets containing Legionella pneumophila were evaluated for aerosolization of the organism with a multistage cascade impaction air sampler. Air was collected above two shower doors and from the same rooms approximately 3 ft (91 cm) from the shower doors while the hot water was running. Low numbers (3 to 5 CFU/15 ft3 [0.43 m3] of air) of L. pneumophila were recovered ...
متن کاملAnnual analysis of heat pipe PV/T systems for domestic hot water and electricity production
0196-8904/$ see front matter 2011 Elsevier Ltd. A doi:10.1016/j.enconman.2011.11.011 ⇑ Corresponding authors. Tel./fax: +86 551 3607367 E-mail addresses: [email protected] (P. Gang), j Heat-pipe photovoltaic/thermal (HP-PV/T) systems can simultaneously provide electrical and thermal energy. Compared with traditional water-type photovoltaic/thermal systems, HP-PV/T systems can be used in cold ...
متن کاملWater pipe smoking: not risk free.
F or young adults who frequent hookah bars, water pipe smoking leads to elevated levels of nicotine, cotinine, tobacco-related carcinogens, and volatile organic compounds (VOCs) in urine. These findings, published May 16 in Cancer Epidemiology, Biomarkers, and Prevention, raise alarms about a practice rapidly gaining in popularity. " We should forget the myth that hookah smoking is not harmful,...
متن کاملWater-pipe smoking among North American youths.
OBJECTIVES The objectives of this analysis were to identify the sociodemographic characteristics of water-pipe users in a North American context and to describe concurrent psychoactive substance use. METHODS Data on sociodemographic characteristics, water-pipe smoking, and use of other psychoactive substances were collected in 2007 through mailed self-report questionnaires completed by 871 yo...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1909
ISSN: 0036-8733
DOI: 10.1038/scientificamerican10091909-263b