The result of this study suggests that there are noticeable relationships between internet game addiction and gender, academic performance, location of computer, usage time of internet games, parents' rearing attitude, and self efficacy.

= Abstract =Objectives: This study was performed to compare rural residents' perceived health status and life satisfaction according to their general and health related characteristics and to identify factors related to perceived health status and life satisfaction in this population. Result: Sex, age, education, spouse, medical diagnosis, currently taking medication, main health maintenance behavior, alcohol consumption, frequency of alcohol consumption, exercise, family harmony, and friend relationships were significantly related to perceived health status. Age, education, spouse, main health maintenance behavior, smoking, exercise, family harmony, and friend relationships were significantly related to life satisfaction. Further, 29.3% of the variance in perceived health status could be explained by medical diagnosis, exercise, family harmony, education, currently taking medication, and friend relationships, while 11.1% of the variance in life satisfaction could be explained by family harmony, perceived health status, main health maintenance behavior, and friend relationships. Conclusion:Health management programs must be designed so as to incorporate the general and health related characteristics of rural residents if they aim to improve the perceived health status and life satisfaction in that population.

In this work, PtRu/CNTs catalysts were prepared by pulse potential plating methods. The particle size and loading level of catalysts were measured by changing the plating time and pulse interval of pulse potential plating method. Electrochemical activities of PtRu/CNTs catalysts were measured by cyclic voltammetry (CV). PtRu/CNTs catalysts showed an increased the electrochemical activity of methanol oxidation up to 24min and a slightly decreased activity over 24min. The electrochemical activity was increased with increasing of the pulse interval. Consequently, it was found that optimal plating time was 24min and optimal pulse interval was 0.5s for electrochemical activity of PtRu/CNTs catalysts.

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