Estimation of genetic trends is necessary to monitor and evaluate selection programs. The objective of this study was to estimate the genetic trends for milk yield in Iranian Holsteins cows using random regression test day model. Data set was consisted of 743205 test-day records from 1991 to 2008, which were collected by the Animal Breeding Centre of Iran. Breeding, environmental and phenotypic...

Tourism is a multidimensional economic activity that has an interaction with the environment. On one hand, environmental resources provide the raw material for tourism, while on the other, tourism imposes a variety of negative and positive impacts (wanted or unwanted) on the environment through the creation of various by-products. The main purpose of the current study is to investigate the rela...

iso14001:2004 standard an active and effective element in city management system can improve function of municipality’s environment. it can be constant environment’s management. despite many benefits of this system in municipality, maintaining is a great part that the function of municipality’s environment dependant on it. in this survey, to design a model for evaluation municipality’s environm...

Understanding the differences in the effects of environmental contamination on children and adults is an important part of environmental policymaking; however, unless environmental health policies reflect the differences between adults and children, this knowledge will have little practical effect. The authors of this article consider how the unique vulnerabilities of children challenge environ...

This paper presents a dual-objective facility programming model for a green supply chain network. The main objectives of the presented model are minimizing overall expenditure and negative environmental impacts of the supply chain. This study contributes to the existing literature by incorporating uncertainty in customer demand, suppliers, production, and casting capacity. An industrial case st...

background: consequences of cerebral palsy in adulthood can affect physical, psychological capabilities and quality of life. the purpose of this study was to investigate the relationship between quality of life with spasticity and level of motor function in iranian young adults with spastic cerebral palsy who were community dweller. methods: in an analytical cross sectional study, 77 participan...