This study was performed to be used as basic data and to activate walking exercise by analyzing the study through twelve-week walking program of a rural community and developing an exercise program for health promotion suitable to the actual condition of a community. Twelve-week walking program was developed and implemented for the middle-aged and old 67 women in a rural community, and this survey was performed from June 26, 2006 to Sep 2, 2006. Data was analyzed using SPSS 12.0 program and body composition, physical fitness and blood pressure, stress and fatigue were compared before and after the walking through paired t-test. As for weight in body composition, the average weight was 53.6±7.2 kg before walking and 53.2±7.1 kg after walking (p<0.001). As for Body Mass Index, it was 24.9±3.9 before and 24.7±3.9 after walking, which significantly decreased (p<

We investigated the control of the charge carrier density of black phosphorus (BP) 2D nanosheets in a rapid plasma doping process. The electronic structure of plasma boron-doped BP was investigated using X-ray photoelectron spectroscopy and ultraviolet photoelectron spectroscopy. The characteristics of a doped BP device were evaluated by fabricating a field-effect transistor under spatially controlled doping in BP nanosheets. The results confirmed the incorporation of ionized boron through the plasma doping process, resulting in the donation of strongly electron dope (electron mobility: ~275 cm 2 /V•s) on the boron-doped BP switching device. In particular, the fabricated p n homojunction of the BP device showed an excellent photodetection behavior. This work provides a rapid and stable plasma doping technique for two-dimensional nanosheets employed in next-generation electronic and optoelectronic devices.

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