background l-tryptophan is an important ingredient in medicines, especially in neuromedicines such as antidepressants. many commercial processes employ various microorganisms with high tryptophan synthase activity to produce l-tryptophan from indole and l-serine, but these processes are very costly due to the costs of precursors, especially l-serine. objectives for this reason, we studied the a...

iranian women who, in the traditional conditions of the past and norms of the iranian society, have had a limited access to the public spaces of the city, with the changes taken place in our modern day society and factors such as education, employment and so on. nowadays, they have distinguished themselves in various fields and introduced their own issues and concerns to the society. however, i...

OBJECTIVES Proper diagnosis and prevention of malocclusion are superior to treatment. Discrepancy between arch length and tooth size in mixed dentition period is a condition requiring timely diagnosis. Estimating the mesiodistal width of unerupted teeth according to the size of erupted ones can lead to earlier diagnosis of malocclusion. On the other hand, the best timing for serial extractions ...

BACKGROUND Given the increasing prevalence of obesity among Iranian adolescents and the role of consumption of unhealthy snacks in this issue, interventions that focus on factors influencing food choice are needed. This study was designed to delineate factors associated with unhealthy snack use among female Iranian adolescents. METHODS The theory of Planned Behavior served as the framework of...

BACKGROUND More than half of the sexual problems in menopausal women are due to insufficient knowledge or false beliefs about sexual function. Theory of planned behavior (TPB) is one of the important theories that explain the main process of adopting healthy behaviors. This study investigates the effect of education based on TPB over sexual function of menopausal women in Sabzevar, Iran. MATE...

BACKGROUND The recognition of road traffic noise as one of the main sources of environmental pollution has led to develop models that enable to predict noise level from fundamental variables. Traffic noise prediction models are required as aids for designing roads and highways. In addition, sometimes are used in the assessment of existing or envisaged changes in traffic noise conditions. In thi...

BACKGROUND Pulmonary function tests (PFTs) are used in assessing physiological to clinical status of the respiratory system, which is expressed as a percentage of predicted values. Predicted PFTs values are varies in different ethnics. Predicted PFTs values were studied in a sample of Iranian children. MATERIALS AND METHODS Prediction equations for PFTs were derived from urban children in the...

BACKGROUND Cardiovascular disease is a major cause of death throughout the world. The aim of this study was to assess the prevalence of overweight/obesity, central obesity, hypertension and dyslipidemia, as well as dietary factors contributing to the development of dyslipidemia among middle-aged women. METHODS The research design of the present study was a population-based cross-sectional stu...

Background. Accurate care of patients with type 2 diabetes may reduce risk of complications. This study was conducted to envisage current status of cares that are provided for a sample of Iranian patients with type 2 diabetes and highlight the domains that need to be focused on in the country's national type 2 diabetes care program. Methods. Behavioral risk factors and diabetes related complica...

INTRODUCTION An environmental impact assessment (EIA) before embarking on any project is a useful tool to reduce the potential effects of each project, including landfill, if possible. The main objective of this study was to assess the environmental impact of the current municipal solid waste disposal site of Gonabad by using the Iranian Leopold matrix method. METHODS This cross-sectional stu...