)reliable statistical reporting systems for a few countries extending back to World War II show that perinatal mortality rates have continuously fallen. To understand the reasons for this trend, 2 kinds of studies must be distinguished: studies which relate observed perinatal mortality rates or changes in rates to social, demographic, and other factors; and studies which set out "experimental...

abstract the aim of this study, is to evaluate the effect of loss methods application on run-off volume and hydrograph shape used by hydrologic models. in this research, four loss methods including constant loss (φ index), initial loss-loss rate, scs and constant fraction approach were applied to be evaluated. to do this, clark rainfall-runoff model was applied for 24 storm events from kasilain...

portfolio theory assumes that investors accept risk. this means thatin the equal rate of return on the two assets, the assets were chosenthat have a lower risk level. modern portfolio theory is accepted byinvestors who believe that they are not cope with the market. sothey keep many different types of securities in order to access theoptimum efficiency rate that is close to the rate of return o...

background and aim: this article carries out a literature review of the quality and limitations of the narrative-based language intervention (nbli) for preschool and school-age hearing aided and cochlear implanted children. recent findings: the authors conducted a comprehensive search of electronic databases such as web of science, scopus, pubmed, google scholar, cochrane, and proquest from 198...

seed loss at harvesting time is one of the factors reducing seed yield in at farms. this study was carried out within a research farm in karaj to evaluate and select a proper pinto bean line for mechanized harvesting at two moisture contents during harvesting and their effect on seed yield and yield loss among three lines of pinto bean. the experiment was split-plot based on randomized complete...

abstract in order to evaluate the influence of nitrogen application and duration of weed interference on corn (zea mays l.) yield and yield components, a field study was conducted in 2004 at the ferdowsi university of mashhad research field. the experimental design was a randomized complete block with a factorial treatment arrangement replicated three times. nitrogen fertilizer was applied at r...

background: hearing loss is one of the common complaints of diabetics. the aim of this study was to evaluate the hearing status of diabetic patients in babol, north of iran. methods: the hearing status of 50 type 2 diabetic patients (case group) and 50 healthy individuals (control group) were evaluated from october 2011 to september 2012. audiometry was done with the frequencies of 250, 500, 10...

sensorineural non-syndromic hearing loss is the most common disorder which affects 1 in 500 newborns. hearing loss is an extremely heterogeneous defect with more than 100 loci identified to date. according to the studies, mutations in gjb2 are estimated to be involved in 50- 80% of autosomal recessive non-syndromic hearing loss cases, but contribution of other loci in this disorder is yet ambig...

introduction h syndrome (omim 612391) is an autosomal recessive disease with some features such as hyperpigmentation, hypertrichosis, heart anomalies, hepatosplenomegaly, hearing deficit, hypogonadism, short stature, flexion contracture of fingers and toes and hypertriglyceridemia. case presentation a 17-year-old boy with hyperpigmented, hypertrichotic and indurated seborrheic keratosis-like cu...