Background: Religious obligation helps people to develop mental health by creating internal commitment to special rules. This meta-analysis aimed to determine the relationship between religious orientation and anxiety among college students. Methods: Major scientific databases including PubMed, Web of Science, Science Direct, EBSCO, ProQuest and PsycINFO were searched for original research articles published 1987-2016. A random effect model was used to combine Correlation coefficient. All analyses were performed using Stata MP. Results: After screening of 7235 documents, 13 articles including 5620 participants met inclusion criteria in this meta-analysis. Correlation coefficient was -0.08 (95% CI= -0.19, -0.03) which indicated with increasing religious orientation, anxiety and depression reduced (P<0.001). Characteristics such as sex, geographic region, and type of religions were potential sources of heterogeneity. Based on fill-and-trim method the adjusted pooled r was obtained, -0.06 (95% CI= -0.16, -0.04). Conclusion: There was a weakness relationship between religious orientation and mental anxiety and depression. Therefore, it needs to improve knowledge of student about advantages of religious orientation.

Hypertension, dyslipidemia, and diabetes are established risk factors for cardiovascular disease (CVD) morbidity and mortality. In the past decade a general increase in CVD risk factors in the population aged 65 and older, along with suboptimal control rates, have occurred. In this descriptive, cross-sectional study, the authors describe the knowledge, attitudes, and practices (KAP) of Iranian females regarding risk factors for CVD, in an attempt to help with the development of strategies to control risk factors and CVD. Participants were 200 women ages 15-49 referred to health centers in Yazd, selected from four different centers. Data were gathered through a questionnaire consisting of demographics and questions related to KAP. The validity of the questionnaire was determined by a health education specialist, with its reliability determined by piloting and measuring the related Cronbach's alpha (Alpha = 0.720). Measuring knowledge of CVD on a scale of 0-20, the mean knowledge score was 10.203.91. More than 76% of the participants knew that CVD is preventable. Ninety-one percent liked exercising and believed that exercising would make them feel better. The average mean scores for attitudes of participants toward CVD were 30.31 ± 3.21 out of 36. The authors conclude that there is a need for enhancing mothers' general knowledge about the disease, because of the increasing rates of CVD in females. This will lead to improvements in attitude and practice. Furthermore, learning in groups of 12 can be a beneficial educational method.

Poor air quality is one of the most important environmental problems in many large cities of the world, which can cause a wide range of acute and chronic health effects, including partial physiological disorders and cardiac death due to respiratory and cardiovascular diseases. According to the latest edition of the national standard for air quality, maximum contamination level is 15 μg/m(3) per year and 35 μg/m(3) per day. The aim of this study was to evaluate cardiovascular, respiratory, and total mortality attributed to PM2.5 in the city of Mashhad during 2013. To this end, the Air Q model was used to assess health impacts of PM2.5 and human exposure to it. In this model, the attributable proportion of health outcome, annual number of excess cases of mortality for all causes, and cardiovascular and respiratory diseases were estimated. The results showed that the number of excess cases of mortality for all causes and cardiovascular and respiratory diseases attributable to PM2.5 was 32, 263, and 332 μg/m(3), respectively. Moreover, the annual average of PM2.5 in Mashhad was obtained to be 37.85 μg/m(3). This study demonstrated that a high percentage of mortality resulting from this pollutant could be due to the high average concentration of PM2.5 in the city during 2013. In this case, using the particle control methods, such as optimal use of fuel, management of air quality in urban areas, technical inspection of vehicles, faster development of public transport, and use of industrial technology can be effective in reducing air pollution in cities and turning existing situations into preferred ones.

The effects of acute fluoride toxicity have been well documented in the literature. Drinking water is an important source of fluoride intake by humans, hence studies need to be carried out to determine the concentration of Fluoride in water. Therefore, this study tends to demonstrate the fluoride concentration in drinking water in thirty-one provinces of Iran during 2014. This cross-sectional study on drinking water was conducted in 2014. SPADNS method was determined for fluoride concentration examination according to instruction of Standard Methods. The minimum concentration of fluoride in provinces, such as Fars, Kermanshah, Kohgiluyeh and BoyerAhmad, Markazi, and Hormozgan, was observed to be 0.01 mg/L, while the maximum concentrations were observed to be 3.72 and 3.52 mg/L for Bushehr and Fars, respectively. The minimum and maximum average mean concentrations were 0.193 (SD = 0.11) and 0.889 (SD = 0.31) for Kermanshah and Bushehr, respectively. Due to the disadvantages of fluoride and because of the existence of different ecological conditions in Iran, there are different concentrations of water fluoride in the country. Therefore, proper policies should be made for water treatment plants based on the regional conditions in order to achieve a desirable fluoride concentration standard.

In this study the removal of Cr (VI) from synthetic wastewater was investigated using Acroptilon repens (Russian Knapweed) fl ower powder under various conditions (pH, contact time and initial concentration of Cr). The capacity of chromium adsorption at equilibrium conditions by this biosorbent was increased by adsorbate concentration. The results also showed that the removal effi ciency of Cr (VI) was increased by increasing the contact time. By increasing the initial concentration of Cr (VI) solution, chromium removal was reduced. The suitability of adsorbents and their constants was tested or evaluated with the Langmuir, Freundlich and Temkin isotherms models. The results indicated that the Freundlich and Langmuir models (R 2 > 0.99) gave a better concordance to the adsorption data in comparison with the Temkin equation (R 2 = 0.97). The adsorption of Cr (VI) followed the pseudo-second-order kinetics (R 2 = 0.991). The study showed that Acroptilon repens fl ower powder can be used as an effective lignocellulosic biomaterial and biosorbent for the removal of Cr (VI) from wastewater.

is a worldwide zoonotic parasite belong to phylum Athropoda. When the eggs are swallowed by intermediate host, the larvae are released in intestine and reach the mesenteric lymph nodes (MLNs) and occasionally liver, lungs, heart, kidneys, spleen, and other body organs by the blood and lymph circulation. There are a few evidences showing transmission of microorganisms by migrating The aim of this study was to determine the role of nymph in transmission of enteric bacterial pathogens to internal organs of sheep. For this purpose 11 parasite positive and 11 parasite negative MLNs to were obtained from the native slaughtered sheep and were examined microbiologically in terms of bacterial contamination. The average total bacterial count and count in the parasite positive samples were respectively 6.7 and 3.3 times higher than parasite negative ones ( < 0.05). However no significant differences were found for and intestinal enterococci between parasite positive/negative samples. This indicates that nymphs play as vehicles for bacteria and so contaminate offal. nymphs transfer some bacterial agents to internal organs and enhance post mortem spoilage of the infected organs. It is also able to transfer some bacterial pathogens to internal organs which could potentially be the etiology of severe infectious or even zoonotic diseases. Especially in some regions where the consumption of raw or semi-cooked lymph nodes and other visceral organs are common.

Pyrolysis of fresh sheep bone led to the formation of bone charcoal (BC). The structural characteristics of BC and surface area were determined by X-ray diffraction (XRD) and scanning electron microscopy (SEM). N2 gas adsorption-desorption was analysed by Brunauer-Emmett-Teller isotherm model. The prepared BC was used as an effective sorbent for the removal of phosphate from aqueous solutions. The effect of major parameters, including initial phosphorous concentration, sorbent dosage, pH and temperature, was investigated in this study. Furthermore, adsorption isotherms and kinetics were evaluated. BC was an effective sorbent in phosphate removal from aqueous solution especially in phosphate concentration between 2 and 100 mg/L. The maximum amount of sorption capacity was 30.21 mg/g, which was obtained with 100 mg/L as the initial phosphate concentration and 0.2 g as the sorbent dosage. Best reported pH in this study is 4; in higher pH, adsorption rate decreased dramatically. By increasing the temperature from 20 to 40 degrees C sorption capacity increased; this phenomenon described that adsorption is endothermic. Equilibrium data were analysed by Langmuir, Freundlich and Temkin isotherms. Pseudo first- and second-order and Elovich models were used to determine the kinetics of adsorption in this study. Collected data highly fitted with Freundlich isotherms and pseudo second-order kinetics. Achieved results have shown well the potentiality for the BC to be utilized as a natural sorbent to remove phosphorous from water and wastewater.

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