Comparing the performance and problems of pre-school centers and kindergartens in Varamin city in Iran

The necessity to examine the performance and problems of pre-school course is due to the significant effect of this course in the child's growth. In this descriptive study, we used systematic perspective to survey and the statistical community is all the managers, coaches and parents of pre-school centers of Varamin in academic year of 2012-13 (2772 people). The sample size is 598 people, according to Morgan table collecting information has been done through observation, interviews, questionnaires and in library and validity of tool research was approved by the teachers and the coefficient of 941/0 = α was calculated, which is an indicative of appropriate stability. To analyze the data, descriptive and inferential statistics were used. The results indicated that there is a significant difference in performance and problems in preschool centers under the protection of education and welfare centers in the size of input, process and environment

Comparing the performance and problems of pre-school centers and kindergartens in Varamin city in Iran

The necessity to examine the performance and problems of pre-school course is due to the significant effect of this course in the child's growth. In this descriptive study, we used systematic perspective to survey and the statistical community is all the managers, coaches and parents of pre-school centers of Varamin in academic year of 2012-13 (2772 people). The sample size is 598 people, according to Morgan table collecting information has been done through observation, interviews, questionnaires and in library and validity of tool research was approved by the teachers and the coefficient of 941/0 = α was calculated, which is an indicative of appropriate stability. To analyze the data, descriptive and inferential statistics were used. The results indicated that there is a significant difference in performance and problems in preschool centers under the protection of education and welfare centers in the size of input, process and environment

Comparing the performance and problems of pre-school centers and kindergartens in Varamin city in Iran

The necessity to examine the performance and problems of pre-school course is due to the significant effect of this course in the child's growth. In this descriptive study, we used systematic perspective to survey and the statistical community is all the managers, coaches and parents of pre-school centers of Varamin in academic year of 2012-13 (2772 people). The sample size is 598 people, according to Morgan table collecting information has been done through observation, interviews, questionnaires and in library and validity of tool research was approved by the teachers and the coefficient of 941/0 = α was calculated, which is an indicative of appropriate stability. To analyze the data, descriptive and inferential statistics were used. The results indicated that there is a significant difference in performance and problems in preschool centers under the protection of education and welfare centers in the size of input, process and environment

Analyzing and studying educational pyramid and changes in demographical indices of Tehran students during the school years 2000-2010

One of the effective factors in planning is paying attention to the increase and decrease of student population. In this study, using a variety of resources, it has been attempted that the growth changes and population decrease in the student population of Tehran in a 10-year period and considering the measures such as population density in-class students, the educational staff ratio, academic pyramid, the separation of school, number of classes and other aspects will be dealt with. Obviously, the results and findings of this potential research could be used in educational planning and population policy. In the present study, the method of data collection was done using the quantitative techniques of demography and a variety of statistical calculations. The research findings showed that the student population, number of classes and schools and the staff of ministry of education are being significantly decreased and has been associated with a negative growth rate in all levels

Analyzing and studying educational pyramid and changes in demographical indices of Tehran students during the school years 2000-2010

One of the effective factors in planning is paying attention to the increase and decrease of student population. In this study, using a variety of resources, it has been attempted that the growth changes and population decrease in the student population of Tehran in a 10-year period and considering the measures such as population density in-class students, the educational staff ratio, academic pyramid, the separation of school, number of classes and other aspects will be dealt with. Obviously, the results and findings of this potential research could be used in educational planning and population policy. In the present study, the method of data collection was done using the quantitative techniques of demography and a variety of statistical calculations. The research findings showed that the student population, number of classes and schools and the staff of ministry of education are being significantly decreased and has been associated with a negative growth rate in all levels

Corresponding Author The effect of Natural Uranium bed on aflatoxin reduction of pistachio

ABSTRACT Nowadays, the separation of pistachios which seem to have aflatoxin is done according to their organoleptic physical qualities like color and etc. As these methods are not fully practical, and there is always a possibility of error and also the conditions like the wrong time harvest, the transportation of picked pistachios, the delay on the processing cause some contaminations in pistachios which do not have particular physical qualities and which are not separable and the detoxification methods must be surveyed. In this paper, the effect of Gamma, Beta, and Alpha rays from natural uranium activity on Aflatoxin reduction was analyzed. Beta and Alpha rays don't pass through the exterior shell of pistachio. Therefore, we need to consider only Gamma rays. So, the Aflatoxin infected pistachios were put into two thick cast iron containers (steam boilers), which one of them included natural uranium soil and the other normal soil and the pistachios were kept there for ten days. Then, the amounts of Aflatoxin in the two boilers were measured by HPLC method and the data were compared. The results show that the B1 Aflatoxin in the natural uranium boiler has reduced from 134.85 ng/g to 72.28 ng/g where as the B1 Aflatoxin in the normal soil boiler has not changed at all. This cheap method on Aflatoxin reduction can cause the increase on pistachio export, improvement of economic situation of the society, reduction of cancer contamination and increase of the society health

Genetic Identification of Trichomonas vaginalis by Using the Actin Gene and Molecular Based Methods

Background: Trichomonas vaginalis is the agent of urogenital tract infection that causes human trichomoniasis with some serious health complications. More understanding about genetic features of the parasite can be helpful in the study of the pathogenesis, drug susceptibility and epidemiology of the infection. For this end,we conducted analysis of the actin gene of T. vaginalis by applying the PCR-SSCP(PCR-Single Stranded Conformational Polymorphism) and nucleotide sequencingmethod. Methods: Fifty T. vaginalis samples were collected from 950 women attending gynecology clinics in two cities of Iran, Hamadan and Tehran, from November 2010 to July 2011. After axenisation of isolates, all samples subjected to PCR-SSCP and nucleotide sequencing. Results: According to the SSCP banding patterns and nucleotide sequencing, seven sequence types were detected among the isolates. Alignment of the nucleotide sequences showed five polymorphic sites in the different strain types. Amino acid substitution was not observed in the nucleotide sequence translation of the all sequences. Conclusion: The actin gene analysis represents genetic diversity of T. vaginalis and it suggests that various strains can be responsible for clinically different trichomoniasis in infected individuals. It is expected that further studies will be conductedto increase our knowledge about relationship between the actin gene polymorphism and different biological behavior of the parasite

In Vitro Susceptibility of Iranian Isolates of Trichomonas vaginalis to Metronidazole

Background: Metronidazole, a 5-nitroimidazole derivative, is the main antitrich­omonal agent of choice for treatment of trichomoniasis. Since 1962, some cases of treatment failure with metronidazole have been reported and recently drug re­sistance is now on the rise in the world. This study was aimed to determine current susceptibility of Iranian isolates of Trichomonas vaginalis to metronidazole. Methods: This study was performed on 50 T. vaginalis isolates collected from west and central areas of Iran. After axenisation of the parasites, susceptibility testing was carried out by using serial twofold dilutions of metronidazole (400 to 0.1 µg/ml). The minimum inhibitory concentration (MIC) and the minimum lethal concentration (MLC) of the trichomonads were determined after 48 h incubation at 35.5 °C. Drug susceptibility assays of the all isolates were carried out two times in triplicate under aerobic and anaerobic conditions. Results: Ninety-eight percent of the T. vaginalis isolates (49/50) were sensitive to metronidazole. Metronidazole resistance was defined as aerobic MIC ≥50 µg/ml, detected in one isolate. The means of aerobic MICs and MLCs and that of anaero­bic MICs of the parasites were 2.91, 1.95 and 0.28 µg/ml, respectively. Conclusion: This investigation showed in vitro low-level tolerance to metronida­zole in a few T. vaginalis isolates that may be leading to the development of drug resistance

The effects of low-fat dairy products fortified with 1500 IU vitamin D3 on serum liver function biomarkers in adults with abdominal obesity: a randomized controlled trial

Abstract Introduction Vitamin D deficiency has been reported to affect liver function biomarkers. This study was aimed to investigate the effect of consuming vitamin D fortified low-fat dairy products on liver function tests in adults with abdominal obesity. Methods This total blinded randomized controlled trial was undertaken on otherwise healthy abdominally obese adults living in Mashhad, Iran. Milk and yogurt were fortified with 1500 IU vitamin D3 nano-capsules. Participants were randomized to receive fortified milk (n = 73), plain milk (n = 73), fortified yogurt (n = 69), and plain yogurt (n = 74) for 10 weeks. Blood samples were taken at baseline and at the end of the study to assess serum levels of vitamin D, alanine aminotransferase, aspartate aminotransferase, alkaline phosphatase (ALP), and Gamma glutamyl transferase. Results A total of 289 participants completed the study (54% female). The groups were homogenous in terms of age, sex, weight, energy intake, and physical activity level (p-value > 0.05). After the trial, vitamin D serum levels were significantly increased in both groups receiving fortified products (both p < 0.001). There was a significant time*group effect only in serum ALP (p < 0.001). Conclusion Consumption of dairy products fortified by 1500 IU vitamin D3 might have detrimental effects on serum levels of some liver enzymes in individuals with abdominal obesity. Further studies needed to determine these effects and underlying mechanisms. Trial registration: IRCT20101130005280N27