نتایج جستجو برای: swimming pool
تعداد نتایج: 61792 فیلتر نتایج به سال:
Athletes who swim intensively, such as those who swim laps more than six hours a week, may develop unusual yellowish brown or dark brown stains on their teeth. The authors hypothesize that long-term contact of the teeth with swimming pool water, as well as the mixture of oral fluids with swimming pool water, leads to the formation of these deposits. The authors report two cases of development o...
fault occurred in the heat reclamation system and simple air extraction was used. For intensively used public swimming pools there are no obvious altematives to chlorine based disinfectants. A survey of bather comfort showed that problems with chlorinous smells are virtually non-existent when the organic contaminants are removed by the powerful oxidising action of ozone.3 In this process swimmi...
fault occurred in the heat reclamation system and simple air extraction was used. For intensively used public swimming pools there are no obvious altematives to chlorine based disinfectants. A survey of bather comfort showed that problems with chlorinous smells are virtually non-existent when the organic contaminants are removed by the powerful oxidising action of ozone.3 In this process swimmi...
Life has colonised almost every corner on Earth – from the highest mountain to the deepest sea. It goes without saying that each location features special environmental characteristics. For example, the deep sea is always buried in pitch darkness, organisms living there are constantly ‘under pressure’ and even though temperatures are stable, it’s still rather chilly down there (about 0°C). So, ...
Skin cancer is increasing, and prevention programs are essential. This study evaluated the impact of a skin cancer prevention program on sun-protection habits and swimming pool environments. The intervention included staff training; sun-safety lessons; interactive activities; providing sunscreen, shade, and signage; and promoting sun-safe environments. A randomized trial at 28 swimming pools in...
OBJECTIVES Drowning is the second leading cause of unintentional death for American children in middle childhood, but behavioral research designed to prevent pediatric drowning is limited. This study tested the efficacy of a brief intervention to improve lifeguard attention and surveillance at a public swimming pool. METHOD Observational data on patron risk-taking and lifeguard attention, dis...
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