• Increasing application of the indicator-dilution technic to the study of various segments of the circulation has focused attention on the different forms of this teehnic that have been devised" as well as on requirements of the ideal indicator and of the ideal detecting-recording system to be used in such studies. This paper will be largely confined to a discussion of indicators and detectors...

background: social health is important to be assessed as a dimension of health. in this study we tried to determine areas and sub-areas of children social health indicators.   methods: in a structured way, we reviewed the main social health databases and documents since 1995, both iranian and international were reviewed to develop conceptual framework and to extract indicators.   results: accor...

background: cytogenetic tests are usually used for diagnosing predisposed individuals to cancer by determining their lymphocyte radiosensitivity. objective: to determine the potential role of radiosensitivity in predisposition of prostate cancer by comparing lymphocyte radiosensitivity of prostate cancer patients with healthy donors. materials and methods: the blood samples of 10 prostate cance...

A box model has been used to study the annual cycle in hydrogen peroxide concentrations with the objective of determining whether the observed difference in summer and winter values reflects instability in the underlying photochemistry. The model is run in both steady-state and timedependent modes. The steady-state calculations show that, for some range of NOx background levels, two stable solu...

[1] Partitioning of volatile chemicals among the gas, liquid, and solid phases during the conversion of liquid water to ice in clouds can impact distributions of chemicals in precipitation and in the poststorm troposphere. In this paper, we extend a theoretical scaling model of chemical retention during hydrometeor freezing to all dry growth riming conditions. We account for spreading of drops ...