YÜZME HAVUZLARINDA KARBON BAZLI DEZENFEKSİYON YAN ÜRÜNLERİNİN OLUŞUMU

This paper aims to review available information in the literature on the factors responsible on formation, species disinfection by-products (DBPs) and their health effects in swimming pool water. DBPs in swimming pools is significant for international literature and this review is the first study with the main focus of DBPs in swimming pool in national academic arena. Various disinfectants are applied in order to eliminate the pathogen microorganisms in drinking water distribution network and swimming pools. While chlorine based disinfectants are used commonly, also bromine based chemicals are preferential disinfectants. The sources of the organic matter precursors are; i) natural organic matter content of filling water and ii) organic loadings from swimmers. While disinfectants inactivate pathogens in swimming pools, mutagenic or carcinogenic DBPs are formed as a result of reactions between disinfectants and natural organic matter (NOM), bromide/iodide and human inputs. The formation of DBPs in swimming pool are higher than drinking water due to higher disinfectants residual and DBPs precursors. Trihalomethanes (THMs) and haloaceticacids (HAAs) are commonly observed as DBPs in swimming pools. THMs can be observed high concentration not only in swimming pool waters but also in indoor air ambition due to their volatile nature. Understanding of DBPs formation and control in swimming pools is important to minimize adverse health effects. It is much easier and cheaper to reduce DBPs before formation the pool with removal of precursors and use of proper disinfectants

Effect of Dietary Garcinia cambogia Extract on Serum Essential Minerals (Calcium, Phosphorus, Magnesium) and Trace Elements (Iron, Copper, Zinc) in Rats Fed with High-Lipid Diet

The aim of the study was to investigate the effect of Garcinia cambogia extract on serum calcium (Ca), phosphorus (P), magnesium (Mg), iron (Fe), zinc (Zn) and copper (Cu) concentrations in rats fed with the normal or the high-lipid and -cholesterol diet. Thirty 1-year-old female Sprague-Dawley rats (pathogen-free), weighing an average of 229 g, were randomly assigned to three experimental groups of ten animals each. Diets and tap water were given ad libitum for 75 days. Group 1 (control group) was fed with basal diet (2 % liquid vegetable oil, 0 % cholesterol), while the diets of groups 2 and 3 contained vegetable oil (2 % liquid vegetable oil and 5 % hydrogenated vegetable oil) and cholesterol (3 %) in high levels. 4,5 % G. cambogia extract containing 65 % HCA was added to the diet of group 3 as from day 45. Blood samples were withdrawn on days 0, 45 and 75. Serum mineral levels were analyzed using standard enzymatic colorimetric methods with a spectrophotometer. All significant differences were p < 0.05. Serum Ca levels were not significantly different between all groups on days 45 and 75. Serum P level was significantly higher in the group fed with high-lipid diet and G. cambogia extract than in the control group on day 45. Serum Mg level was significantly higher in group 2 than in the control group on day 45. Serum Fe levels were significantly lower in the control group than in the other groups on days 45 and 75. Serum Zn level of the group fed with high-lipid diet and G. cambogia extract was significantly higher than in the control group on day 75. Serum Cu levels were significantly higher in group 2 than in the control group, and in group 3 than in group 2 on day 75. In conclusion, a diet containing the high fat amounts may lead to the increase in circular levels of some minerals due to the short-chain fatty acid production lowering the luminal pH which increases mineral solubility, or serving as a fuel for mucosal cells and stimulating cell proliferation in the large intestine. G. cambogia extract may be used in the P and Cu deficiencies due to increases resulting in the present P and Cu amounts in G. cambogia extract, or the use of phytate P in diet. It was hoped that with further evidence-based study this product will enter to mainstream medicines

The Social Environment and Childbearing Expectations: Implications for Strength-Based Sexual Health Interventions for Latino Youth

In the United States, adolescent childbearing is disproportionately higher among Latino youth, a growing population facing substantial social exclusion. Exploring the relationship between the social environment and sexual health outcomes among Latino youth may offer insights into the development of novel interventions. In this study, Latino youth in partnerships were recruited from neighborhood venues in San Francisco and completed in-depth interviews. Youth reported a desire to complete higher education goals prior to starting a family to improve future opportunities and further personal development. Youth stated that social network members, family and partners, were supportive of their individual childbearing expectations. Social environment barriers tied to poverty, immigration status, and gang violence hindered educational attainment. Some differences were noted by gender and immigrant generation. Building on protective social ties and creating avenues in poor, urban neighborhoods for Latino youth to fully access educational opportunities may counter early childbearing and improve sexual health