subalpine ecosystems are highly fragile as compared to biological andenvironmental factors. landslide is one of the ruinous upshots of this ecosystem. one of theimpressionable areas in the cause of natural factor is masoleh watershed in western alborzmt, (iran). in order to landslide hazard zonation, landslide index and frequency ratio methodbased on twelve causative factors such as slope, slop...

macrobentos frequency and biomass was investigated in the gorgan bay in 2011. five sampling sites were chosen to collect benthos and sediment from the bay using a van veen grab sampler. samples were collected seasonally. macrobenthos were indentified and their biomass was recorded. sediment heavy metals concentration were measured using atomic absorption spectroscopy. a total of 11 families bel...

ecotoxicological studies that use histological techniques enjoy descriptive approach in explaining the damages to tissues. in the present study, a rank-based estimation for linear models was used to examine significant difference between levels of cypermethrin on histological changes of the liver in aphanius sophiae . the toxicity of cypermethrin associated with certain environmental factors su...

cleft lip and cleft palate are one of the most frequent congenital anomalies worldwide. this study was conducted in order to measure the frequency of cleft lip and palate among live births in akbar abadi hospital. this is a descriptive study, dealing with 57526 cases of live birth out of 59477 medical files in akbar abadi hospital from 2004 to 2008. all the collected data were recorded in speci...

in this paper coupled nonlinear equations of motion of a suspended cable with time dependent tension and velocity are derived by using hamilton’s principal. a modal analysis for a stationary sagged cable is initially carried out in order to identify the dynamic system. the natural solution is directed to compute the natural frequencies and mode shapes of the free vibration of a suspended cable....

screening interval urinalysis has long been considered essential to pediatric health care. a urinalysis is recommended at four times: in infancy, early childhood, late childhood, and in adolescence. several chemical parameters can be measured as commercially available in dipstick test. this test is relatively inexpensive and it takes less than 5 minutes to be completed. in a 3 month follow up p...

background: exposure to extremely low frequency electromagnetic fields is increasingly common, but the potential influence on pregnant women has not been thoroughly investigated. methods: in this case-control study, 58 women who had an unexplained spontaneous abortion at < 14 weeks gestation and 58 matched pregnant women >14 weeks gestation were enrolled in 2012. the women completed the questio...

introduction: developmental changes in atrioventricular nodal conduction time and refractoriness have been shown in several studies. prevalence of atrioventricular nodal reentrant tachycardia (avnrt) is clearly age-dependent. the purpose of this study was to determine developmental changes of basic and frequency-dependent electrophysiological properties of the atrioventricular node (av-node) in...

gyroscopes are used as rotation rate sensors. conventional gyroscopes are heavy and bulky, which creates important problems regarding their usage in different applications. micro-gyroscopes have solved these problems due to their small size. the beam micro-gyroscope is one of the popular types of inertial sensors. their small dimensions and low energy consumption are key reasons for their popul...

introduction: the present study investigated the interactive effect of gabab receptors and extremely low frequency electromagnetic field (elf-emf) on foot shock-induced aggression in rats. methods: fifty adult male rats were randomly assigned into 10 groups. groups 2, 4, 6, 8 and 10 were exposed to 50 hz, 500 µt elf-emf for 30 days 8h per day while the remaining groups (1, 3, 5, 7 and 9) were s...