If two populations become geographically isolated from one another, differences in their environments can drive the evolution of new traits over time that eventually result in the emergence of two species where once there was one. Trouble arises however, when individuals from two such populations meet up again before the speciation process is complete. Although partially diverged species can st...

OBJECTIVE: We examined how predisposing, enabling and reinforcing factors influence mammography referrals by primary care physicians (PCPs). METHODS: Using the 2001-2003 National Ambulatory Medical Care and National Hospital Ambulatory Medical Care Surveys, we identified visits to office (n=8,756) and outpatient (n=17,067) PCPs by women≥40 without breast symptoms or breast cancer. We examined m...

background :growth retardation in children is a result of nutritional ignorance, inappropriate care, and inadequate monitoring of growth monitoring. this study was performed to assess the effect of mothers education program based on the precede model on the mean weight of children (6-12 months) at health centers in shiraz, fars province.   methods : this quasi experimental study was conducted o...

This paper presents an analytical model to estimate the cost of an optimized design of reinforced concrete isolated footing base on structural safety. Flexural and optimized formulas for square and rectangular footingare derived base on ACI building code of design, material cost and optimization. The optimization constraints consist of upper and lower limits of depth and area of steel. Footing ...

BACKGROUND Community health services in China have developed over the last few decades. In order to use limited health resources more effectively, we conducted a community health needs assessment. This aimed to provide an understanding of the community's health problems and the range of potential factors affecting risk behaviours for the priority health problems. METHODS We used the precede-p...