BACKGROUND Since heart rate variability (HRV) is associated with average heart rate (HR) and respiratory rate (RespRate), alterations in these parameters may impose changes in HRV. Hence the repeatability of HRV measurements may be affected by differences in HR and RespRate. The study aimed to evaluate HRV repeatability and its association with changes in HR and RespRate. METHODS Forty health...

background and objectives: hospital is the largest and most costly operating unit of healthcare system. provision of optimal care requires that hospital administrators identify hospital performance based on relevant indicators. this study used the pabon lasso analysis to assess the performance of hospitals and identify strategies towards an improved hospital performance.   methods: this cross-s...

flood spreading stations were constructed in iran with different objectives such as groundwater recharge and vegetation recovery. accumulation of sediment can be a major problem in flood spreading stations. according to generally accepted theories, floods and salt pollution can reduce gradually the infiltration rate. in order to investigate this issue, 13 flood spreading stations were selected ...

conclusions children engaged with regular football practice presented enhanced physical fitness and autonomic function, by increasing vagal tone at rest. results the anthropometric and body composition characteristics were similar in both groups (p > 0.05). the groups were also similar in time spent daily on moderate-to-vigorous physical activities (fg vs. cg: 114 ± 64 vs. 87 ± 55 minutes; p > ...

in order to determine the exact birth rate and also percent of birth - orders in all births in the province of west azerbaijan, all centres of birth registration in the province were asked to fill a questionnaire at the time of issuing identity document for children. in the questionnaire, parents were asked to mention the place of birth, sex and birth order of the children and also the occupati...

the aim of this study was to determine the trend of changes in cataract surgical rate (csr) in the provinces of iran during 2006 to 2010 and identify high risk areas.this report is part of the national iranian csr study. the percentage change in csr in 2010 compared to 2006 was conducted in each province, retrospectively. one hundred and ten centers were chosen from all provinces, to determine ...

tuberculosis is a continuous threat for health in all parts of the world. an estimated one-third of the world, s population is infected with the mycobacterium tuberculosis and 7 to 8 million people develop tb disease each year. the purpose of this study was to investigate the rate of tuberculosis in the townships of yazd province, iran. during the study period (1997-1999), 3885 suspected tuberc...

head louse infestation is common in various parts of the world. baluchestan area in southeast of iran is one of the most infected areas. we studied the head louse infestation among the girls in primary schools of iranshahr, which is the largest city of the province during november 2002 to may 2003. totally 918 pupils, between 6-14 years old from 12 urban primary schools were randomly selected b...

abstract according to the importance of date export in iran, this study investigates short run and long run relationship between date export and important economical variable, specifically exchange rate. for this purpose, an autoregressive distributed lag approach (ardl) to cointegration is applied to annually time-series data from 1981 to 2007. results showed that the exchange rate, export pri...