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사군자탕이 항암제를 투여한 마우스의 면역세포에 미치는 영향
殷載淳,金大根,柳東和,權鎭,洪鍾星,蘇俊魯,全焄,吳贊鎬 우석대학교 의약품개발연구소 1997 藥學硏究誌 Vol.2 No.-
The purpose of this research was to investigate effects of Sa-Kunja-Tang(SKT) on immune cells of antitumor drugs administered mice. The apoptosis and T lymphocytes subpopulation were tested using a flow cytometry, and the proliferation was tested using a MTT assay. The administration of etoposide. vincristine or doxorubicin increased the apoptosis of T-lymphocytes, but the action of doxorubicin was decreased by the administration of SKT. The administration of etoposide or vincristine decreased helper T and cytotoxic T cells population of T lymphocytes, but the action of vincristine was recovered by the administration of SCT. The administration of etoposide, vincristine or doxorubicin decreased the proliferation of T-lymphocytes, but the action of doxorubicin was increased by the administration of SKT. These results suggest that SKT has a regulative function of T-lymphocytes in anti-tumor drugs administered mice.
저체중 또는 과체중 청소년에서 캠프 프로그램을 이용한 영양 교육효과에 관한 연구
성미경,승정자,류화춘,박재년,박동연,최미경,조경옥,최선혜,이윤신,김유경,이은주 대한지역사회영양학회 2003 대한지역사회영양학회지 Vol.8 No.4
This study was performed to evaluate the effectiveness of a nutrition education program developed for nutritionally imbalanced adolescents. A summer nutrition camp was held for 23 overweight and 16 underweight subjects. Its effectiveness with regard to was evaluated at the end of the camp and 6 months later. Nutrition knowledge, nutritional attitude, food behavior, nutrient intake, exercise habit and ideal body figures desired by the subjects. The results showed significantly higher nutrition knowledge scores at the end of the camp as compared to those obtained prior to the camp program, and these scores were maintained for at least six months. Nutrition attitude scores also improved after the education program, and these improved scores also lasted for 6 months. However, the food behavior scores measured 6 months after the education program were not significantly different from those obtained prior to the camp. Also, the exercise habit, the ideal body figures and the body figures desired by the subjects remained unchanged. When nutrient intakes of subjects were assessed before the program and 6 months later, the mean daily vitamin C intake was significantly increased after the education program. Also, the intake of iron from plant food sources increased in the overweight subjects, while less iron from animal source were consumed by the underweight subjects. Both groups tended to consume more vegetables and fruits 6 months after the education program which may have contribute to the higher vitamin C and plant-based iron intakes. These results indicate that a 4-day nutrition education camp program sustained changes in nutrition knowledge and nutrition attitude for 6 months. The increased intake of vegetables and fruits was also achieved through this education program. However, changes in dietary behavior in adolescents may require repeated education.
Effect of Highly Pressurized Hydrogen Gas Charging on the Hydrogen Embrittlement of API X70 Steel
Dong-Su Bae,Chi-Eun Sung1,Hyun-Ju Bang,Sang-Pill Lee,Jin-Kyung Lee,In-Soo Son,조영래,Un-Bong Baek,Seung-HoonNahm 대한금속·재료학회 2014 METALS AND MATERIALS International Vol.20 No.4
During the use of API X70 steel as a pipeline structural material for the transportation of natural gas,hydrogen embrittlement can occur due to the hydrogen contained in natural gas. The aim of this study is toinvestigate the effects of the hydrogen content under high-pressure hydrogen gas conditions on the hydrogenembrittlement of air-cooled API X70 steel. The air-cooled API X70 steel was manufactured by hot rollingand was then air-cooled to room temperature. Tensile test specimens were held for 0 h, 1000 h, and 2000 hwithin a pressure vessel filled with 100% hydrogen gas at a gas pressure of 10 MPa, with the tensile teststhen performed at room temperature. The microstructure of the API X70 steel consists of coarse polygonalferrite, coarse pearlite, and fine acicular ferrite. The yield and tensile strength increased and elongationdecreased considerably after a holding time of 2000 h compared to those of 0 h and 1000 h within the pressurevessel. The morphology of the fracture surface changed from ductile to brittle upon hydrogen gas charging. Secondary cracks were observed in both of the hydrogen-gas-charged specimens. No external cracks wereformed on the surface of the tensile-tested specimen with a 0 h holding time; however, many external crackswere observed on the specimen surface subjected to hydrogen gas charging.
자기불일치와 스트레스 대처방식이 인터넷 중독에 미치는 영향
김동은,장성숙 가톨릭대학교 학생생활상담소 2011 학생생활상담 Vol.29 No.-
본 연구에서는 자기볼일치와 스트레스 대처방식이 인터넷 중독에 미치는 영향을 살펴보고자 하였다. 이를 위해 자기불일치와 인터넷 중독의 관계에서 소극적 대처방식의 매개효과를 살펴보고, 또한 성별과 이용목적에 따른 인터넷 중독 수준이 다른 양상을 보일 것으로 가정하고 이를 확인해 보았다. 이를 위하여 서울,경기 소재 대학생 470명을 대상으로 자기불일치 척도, 스트레스 대처방식 척도, 인터넷 중독 척도, 연구학적 변인들에 대한 질문지를 사용하여 설문조사를 실시하였다. 본 연구의 주요 결과는 다음과 같다. 첫째,성별에 따른 인터넷 중독 수준은 남자가 여자보다 유의미하게 인터넷 중독 수준이 높았다. 이용목적에 따른 인터넷 중독 수준에서는 특히 온라인 게임을 이용하는 집단이 정보검색을 위해 인터넷을 이용하는 집단보다 인터넷 중독 수준이 유의미하게 높은 것으로 나타났다. 둘째, 자기불일치는 적극적 대처방식에 부적인 영향을 미치는 반면, 소극적 대처방식에는 정적인 영향을 미치는 것으로 나타났다. 셋째, 소극적 대처방식은 인터넷 중독에 정적인 영향을 미치는 반면 적극적 대처방식과 인터넷 중독은 유의미한 상관을 보이지 않았다. 넷째, 소극적 대처방식은 자가불일치가 인터넷 중독에 미치는 영향을 매개하는 것으로 나타났다. 마지막으로 본 연구결과를 통한 연구의 시사점 및 후속연구를 위한 제언에 대해서 논의하였다.
우발적 경막 천자 후 발생한 전 척추 마취 : 증례보고
김은석,이동훈,김상태 충북대학교 의과대학 충북대학교 의학연구소 2008 忠北醫大學術誌 Vol.18 No.1
산과 영역에서 경막외 마취가 흔히 사용되며, 이로 인한 합병증의 하나로 경막 천자가 발생될 수 있다. 우연히 발생된 경막 천자 후에 국소 마취제가 척수강 내로 다량 주입될 경우에 전 척추 마취가 발생될 수 있는데, 이는 비록 생명을 위협하는 매우 치명적인 합병증이지만, 발생 초기 단계부터 적극적으로 대처하면 치명적인 부작용을 줄일 수 있다. 경막외 마취를 시행할 때 국소마취제가 척수강내 주입되지 않도록 주의 깊게 시술하여야 하며, 시험 용량을 사용하고 국소 마취제 용량을 조금씩 증가시키며 사용하는 것이 이러한 합병증을 예방할 수 있는 방법이다. 저자들은 우발적으로 발생된 경막 천자 후에 생긴 전 척추 마취 2례를 경험하였기에 문헌 고찰과 함께 보고하고자 한다. Epidural anesthesia is routinely performed at obstetric area and dural puncture is not rare complication. Total spinal anesthesia following accidental intrathecal spread of local anesthetics is life-threatening complication but has good prognosis if rapid and appropriate management are performed. Ventilation, arterial blood pressure and heart rate should be supported. Careful aspiration, use of a test dose, and incremental injection technique can help to avoid this complication. We report two cases of total spinal anesthesia following accidental dural puncture.
이은선,박상희,조성미,정옥란,석동일 한국음성과학회 2003 음성과학 Vol.10 No.3
This study compared the voices of ministers and priests. There has been a common notion that ministers are more passionate than priests in delivering their speech. Therefore, it can be assumed that ministers abuses or misuses his/her voice compared to priests. This study attempted acoustic analysis of the choices of 6 ministers and 5 priests before an after their speech. We measured F0, jitter, shimmer, NNE and HNR using Dr. Speech(version 4.0, Tiger DRS). A t-test was performed to determine any objective differences of their voices. The results showed that there were no significant differences in the voices of ministers and priests before an after their speech. However, there seemed to e an interesting reversed tendency between ministers and priests, although it did not reach a statistical significance. That is, F0 tended to increase after the speech in ministers, whereas it tended to decrease in priests. In addition, HNR tended o decrease after the speech in priests, while it tended to increase in ministers.