background : we need a defined population for determining prevalence and incidence of diseases, as well as conducting interventional, cohort and longitudinal studies, calculating correct and timely public health indicators, assessing actual health needs of community, performing educational programs and interventions to promote healthy lifestyle, and enhancing quality of primary health services....

Background & objectives: The urban rail transport network is always at risk due to its special conditions. Many cases indicate the existence of threatening and risk factors for human societies in urban rail transportation systems. Therefore, in this study, with the aim of identifying and prioritizing the risks of urban rail transportation networks in order to increase resilience is on the agend...

BACKGROUND Air pollution is a major problem in urban\industrial areas, like Tehran, and has several impacts on human health. This study aimed at assessing concentrations of criteria air pollutants (CO, SO(2), NO(2), O(3), PM(10)) in Tehran, extracting patterns of hourly, daily, weekly, and monthly variations of concentrations, and making comparisons to National Standards and WHO Guidelines. M...

Title of Thesis: MEASUREMENT OF IN SITU EXPRESSION OF PROTEORHODOPSIN GENES AT THE NORTH PACIFIC CENTRAL GYRE STATION ALOHA Yanmei Shi, Master of Science, 2005 Thesis Directed By: Dr. Marcelino T. Suzuki Marine Estuarine Environmental Science A novel approach was developed for the measurement of microbial gene expression in the oceans, and used to test the hypothesis that Proteorhodopsin (PR) g...

M crested wheatgrass stands in western North Dakota were established 15 to 20 years ago. These fields are still used for hay and pasture, and many are still in excellent condition. One field at the Dickinson Experiment Station, seeded in 1938, has produced an average of 1,262 pounds of forage per acre (dry weight) over the past 12 years. However, there is good evidence that the productivity of ...

Accurate prediction of suspended sediment (SS) concentration is a difficult task for water resource projects. In recent years, methodologies such as artificial intelligence (AI) algorithms have been applied load estimation and these models provided efficient results. The present study investigates the abilities four distinct AI approaches estimating monthly SS in Roodak station on Jajrood River...