backgroundseveral studies have examined the relationship between human development index (hdi) and various health outcomes. the aim of this study was to investigate the relationship between hdi, and infant mortality rate, mortality rate of children under one year and under 5 years, maternal mortality rate, and total fertility rate.materials and methodsin this ecologic study, data on hdi, total ...

the emergency severity index (esi) is a five-level triage system that has shown promising reliability and validity. according to esi algorithm, in the presence of danger zone respiratory rate (rr), heart rate (hr) or oxygen (o2) saturation, patients should be up-triaged from esi level 3 to 2 hence, the current study aimed to investigate the value of the measurement of vital signs in predicting ...

conclusions it was observed that the success and survival rate of maxillary molar immediate implant was relatively high and similar to those of conventional delayed implants. results immediate implants were most frequently used for incisor and premolar sites and there is very little data available on immediate implantation in the molar area. in this research, we reviewed all the existing papers...

in this work, the time series modeling was used to predict the tazareh coal mine risks. for this purpose, initially, a monthly analysis of the risk constituents including frequency index and incidence severity index was performed. next, a monthly time series diagram related to each one of these indices was for a nine year period of time from 2005 to 2013. after extrusion of the trend, seasonali...

the charge-transfer complexation reaction between iodine and dibenzo- 18-crown- 6 (db18c6) has been studied spectrophotometrically in chloroform solution at different temperatures. the resulting donor-acceptor complex was formulated as (db 18c6…i )i . the spectrophotometric results , as well as the conductivity measurements, indicated that the gradual release of tiiodide ion from its contact io...

making capital and investment is the main driving forces of economic development. based on the investment sensitivity to the changes of some of macro-economic variables and risk and uncertainty, the present study evaluated the effective factors on investment in private sector in iran during 1980-2007. at first, the uncertainty variables of real informal exchange rate, nominal interest rate and ...

Nearest-neighbor inductive effects are known to influence amide proton exchange. Here we show that longrange electrostatic interactions also have a significant effect on the rate of amide proton exchange. We have measured the effects of salt (NaC1) on the exchange rates of the neutral polypeptide poly(DL-alanine) (PDLA) and of the positively charged polymer poly(DL-lysine) (PDLL). Our results s...

In a communication network a good rate allocation algorithm should reeect the utilities of the users while being fair. We investigate this fundamental problem of achieving the system optimal rates in the sense of maximizing aggregate utility, in a distributed manner, using only the information available at the end hosts of the network. This is done by decomposing the overall system problem into...

We investigate the fundamental problem of achieving the system optimal rates in a distributed environment, which maximize the total user utility, using only the information available at the end hosts. This is done by decomposing the system problem into two subproblems – network and user problems – and introducing an incentive-compatible pricing scheme, while maintaining proportional fairness. W...