This paper introduces the concept of a dynamic key infrastructure for Grid. It utilises the properties of Identity-based Cryptography (IBC) to simplify key management techniques used in current Public Key Infrastructure (PKI) settings for Grid. This approach can offer greater simplicity, flexibility, and enhanced computation trade-offs.

The evolution of building codes typically produce design provisions that are expected to create safer and more accurate designs. We as engineers expect building codes to advance the state of the art with each successive edition. The 2009 International Building Code (IBC) and the Building Code Requirements for Structural Concrete (ACI 318-08) have significant revisions affecting the design of ti...

BACKGROUND Opium is one of the most commonly abused opiates in developing countries including Iran. Considering the importance of maternal health on the newborn, we aimed to assess the effect of opium abuse on fetal heart rate (FHR) characteristics in a sample of pregnant women in Zahedan, Southeast Iran. METHODS This cross-sectional study was done on 100 pregnant women referring to Ali-Ibn-A...

BACKGROUND This cross-sectional study was conducted to compare the average costs of breast cancer screening and treatment among women with the age of 25 and over in Shiraz-Iran. METHODS Three majors hospitals affiliated with Shiraz University of Medical Sciences (SUMS) were selected for data collection. Financial documents and interviews with the hospitals' financial officers were used for da...

BACKGROUND Iran is presently designing a long-term plan for promoting science, technology and innovation in medicine. An important part of this plan will be a strategy for future planning for medical education considering the important trends affecting the future of health status and medical education in Iran. Here, we sought to clarify such trends in Iran and compare them to trends reported fo...

CONTEXT Proper accountability to needs of preterm infants' parents requires recognition of these needs and how they change in different conditions. The aim of this study was to assess the needs of parents of preterm infants in Iran, as compared to those in other regions in the world. EVIDENCE ACQUISITION A search of Iranian databases (Iran Medex, Magiran, and SID) and international resources ...

BACKGROUND Despite significant reduction in global disease prevalence, leprosy still has a high rate of disability while its determinants are unfair and many of them are amendable. The objective of this study was to measure inequality of disability in leprosy in Iran. METHODS This was a cross-sectional study (2006-2007) on all living people affected by leprosy registered in W. Azerbaijan prov...

BACKGROUND Retinopathy of prematurity (ROP) refers to the developmental disorder of the retina in premature infants and is one of the most serious and most dangerous complications in premature infants. The prevalence of ROP in Iran is different in various parts of Iran and its prevalence is reported to be 1-70% in different regions. This study aims to determine the prevalence and risk factors o...