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독거노인의 사회계층인식이 우울에 미치는 영향에서 주관적 건강상태의 조절효과 검증
정원철,태명옥 한국콘텐츠학회 2017 한국콘텐츠학회논문지 Vol.17 No.12
The purpose of this study was to determine the moderating effect of subjective health state of elder who lives alone on the influence of those people’s stratum consciousness on their depression. For this purpose, the study utilized the 5th version of Korea Longitudinal Study on Aging 2014 and analyzed data concerning 774 elder who lives alone. The findings of this study can be summarized as follows. First, the higher elder who lives alone were in subjective stratum consciousness, the lower they were in depression. Second, elder who lives alone were lower in depression when perceiving they were higher in health state. Third, the elder who lives alone were lower in depression when their perceived subjective health state was higher even if they were lower in stratum consciousness. All these findings clearly indicate that the stratum consciousness and depression of elder who lives alone are moderated by their perceived health state of their own. Lastly, the implications, limitations, and suggestion for further research were discussed. 본 연구의 목적은 독거노인의 사회계층인식이 우울에 미치는 영향에 있어서의 주관적 건강상태의 조절효과를 분석하는 것이다. 이를 위해 2014년 한국고용정보원의 ‘고령화연구패널 5차자료’를 활용하였다. 65세 이상 독거노인 774명의 데이터를 분석한 결과는 다음과 같다. 첫째, 연령과 성별을 통제한 상태에서 독거노인의 사회계층인식이 높을수록 우울이 감소하는 것을 경험적으로 확인할 수 있었다. 둘째, 독거노인이 자신의 건강상태가 좋다고 인식할수록 우울의 수준 역시 감소하는 것으로 확인되었다. 셋째, 독거노인의 사회계층인식이 낮아도 주관적 건강상태가 좋다고 인식할 경우 우울의 수준 역시 감소하는 것으로 확인되었다. 다시 말해 독거노인의 건강상태에 대한 인식은 사회계층인식과 우울관계를 조절한다는 것이 검증되었다. 본 연구는 초고령 시대로 진입하는 한국사회의 노인의 정신건강문제를 해결하는 방안으로 노인의 사회계층인식과 건강상태에 대한 체계적인 접근이 필요함을 확인시켜 준다는 점에서 의의를 지닌다.
E. coli와 Salmonella에 의한 자돈설사에 있어서 Dioctahedral Smectite의 치료효과
정원철,차춘남,김영일,이여은,유창열,김석,이후장 한국임상수의학회 2010 한국임상수의학회지 Vol.27 No.4
The objectives in the present study were to evaluate the therapeutic effect of dioctahedral smectite (smectite)against piglet diarrhea caused by E. coli and Salmonella. Of this study, twenty piglets (body weight, 6.60 ± 0.34 kg)with diarrhea were used to estimate the efficacy of smectite on piglet diarrhea with 20% smectite suspension in PBS. Pigs were administered with 1 ml smectite suspension three times a day after feeding, and fecal samples were collected at the gate of treatment and on 1st, 2nd, 3rd, and 4th day after administration. Changes in body weight, diarrhea index, and shedding of E. coli and Salmonella were monitored during the experimental period. The group treated with smectite reduced diarrhea index (p < 0.01), and increased body weight compared to control group. In the treated group, the number of E. coli and Salmonella was significantly decreased compared to each control group (p < 0.01). From results of the present study, 20% smectite suspension had therapeutic effect on diarrhea caused by E. coli and Salmonella in piglets.
고집적 소자용 구리기둥범프 패키징에서 산화문제를 해결하기 위한 방법에 대한 연구
정원철,홍상진,소대화,황재룡,조일환,Jung, One-Chul,Hong, Sang-Jeen,Soh, Dae-Wha,Hwang, Jae-Ryong,Cho, Il-Hwan 한국전기전자재료학회 2010 전기전자재료학회논문지 Vol.23 No.12
Copper pillar tin bump (CPTB) was developed for high density chip interconnect technology. Copper pillar tin bumps that have $100{\mu}m$ pitch were introduced with fabrication process using a KM -1250 dry film photoresist (DFR), copper electroplating method and Sn electro-less plating method. Mechanical shear strength measurements were introduced to characterize the bonding process as a function of thermo-compression. Shear strength has maximum value with $330^{\circ}C$ and 500 N thenno-compression process. Through the simulation work, it was proved that when the copper pillar tin bump decreased in its size, it was largely affected by the copper oxidation.