statement of the problem the aim of this study was to compare the treatment outcome of cl i malocclusion patients treated by two methods, including standard edgewise and mbt. materials and methods thirty subjects (23 boys and 7 girls) with an age range between 14‒19 years were included in each group. the patients had cl i malocclusion and were treated through non-ext strategy. pre- and post-tre...

this study was mainly designed to investigate and identify the amounts and types of heavy metals in the soils of national iranian oil refining & distribution company in shahrood region and tried to establish a logical relation between the presence of heavy metals and their damage on vegetation. in addition, considering the power of drained soil and due to the proximity of ground water in shahro...

purpose: e is a commonly use letter for illiterates or those who could not read english to measure visual acuity. the e chart is the mainly used charts in iran. however, they do not have the standards. they are in different format, fixed for 6 meter test, with or without lighting, with unequal number of letters in each line and different contrasts. as a result, there is an essential need for a ...

compost is a gradual process in nature by which organic materials are decomposed in the presence of air by microorganisms and fungi. the product is a valuable fertilizer that is used in different places even in home little gardens, so that it has signed as an unnoticed asset. with due attention to the importance of compost, its guidelines and standards should be evaluated. it is pointed and com...

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background: preconception counseling is preventive medicine in obstetrics. preconception care creates an opportunity for examining conditions before pregnancy improving pregnancy outcome. this study was conducted with the aim of determining the adaptation rate of preconception care with the national standards at health care centers, ahvaz, 2014. methods: this descriptive study was conducted at ...

the process of determining the minimum pass level to separate the competent students from those who do not perform well enough is called standard setting. a large number of methods are widely used to set cut-scores for both written and clinical examinations. there are some challenging issues pertaining to any standard setting procedure. ignoring these concerns would result in a large dispute re...

introduction: helicobacter pylori, as an etiologic cause of peptic ulcers and gastric cancer, should be tested and treated. the true state of infection can only be detected by isolation of gastric biopsies through the invasive method of gastroscopy. however, there are several non-invasive methods for detection of infection, the most common of which is serology. methods: here we have evaluated t...

background: health system pharmacies, like other health care professional, practice under a number of mandated stan­dards. basic concepts of quality assurance (qa) standards should be applied to hospital pharmacy practice. the survey re­ported here is to assess qa system implementation and its standard indicators observation in tehran university of medical sci­ences (tums) hospitals' pharmacies...

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