농촌지역 노인들의 우울증상에 관련된 요인들의 특성

송미숙,전기홍,송현종,김정은,박승구,신상건,이동훈,정성현,최연주,최완철,최민규,황재철,홍지만 아주대학교 1997 아주의학 Vol.2 No.2

This study was performed to identify risk factors for depression among the elderly in a rural area. A survey was done for the elderly living in Gosam-myenn, Ansung-kun during the period of July 28, 1997 and July 30, 1997. Demographic and sodoeconornic characteristics, and functional and health Status were assessed using a structured questionnaire, and the level of depression was measured by GDS score. The data obtained were analyzed by frequencies, percentage, t-test, ANOVA, and multiple regression, and the results were as follows: 1. The total sample consisted of 133 elderly. Of them, 47 elderly (35.4%) showed significant depressive Symptoms. 2. The GDS score was the highest for the group over 85 years of age (p < 0.05). Those living alone or widowed showed lower GDS score than those living with someone or married (p < 0.05). 3. The GDS score was the highest in the absolutely dependent group, followed by the partially dependent group, and the independent group (p < 0.01). The elderly who perceived their health Status as excellent showed the lowest GDS score. In contrast, those who had more than five chronic diseases showed the highest GDS score. 4. The elderly receiving financial and emotional support from their family or friends showed lower GDS score compared to those without any support. 5. The economically dependent group showed higher GDS score than that of independent group. 6. The elderly who involved in leisure activities showed lower GDS score than those without any involvement. 7. In terms of risk factors for depression, we found that perceived health Status, subjective economic Status, leisure activities, living arrangement and financial support were inversely associated with GDS score, whereas labor support was positively associated with GDS score. Based upon the above findings, this study suggests that these risk factors for depression in the elderly should be taken into consideration for a comprehensive mental health program for the elderly living in the rural area.

관동맥질환에서 저밀도 지단백 입자 크기의 분포

임효영,김인숙,승기배,강동헌,전두수,장기육,박준철,이수영,홍순조,최규보 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.8

범주형자료분석에서 최적척도 방법들의 비교연구

최기철,이용구 부산 외국어 대학교 1996 外大論叢 Vol.15 No.1

One of the main interest of categorical data analysis is to find the relationship among the categories and variables. Many statistical methods have been introduced to solve these problems by using the optimal scaling methods, i.e. correspondence analysis, multiple correspondence analysis(homogeneity analysis), and nonlinear principal component analysis, etc. Each method has limitations in the type of data and number of variables. In this paper, we have tried to find the similarity and dissimilarly among the three methods by applying the three methods to artificial data sets.

새로운 조성을 갖는 고형 탈묵제의 제조

최형철,남기대,정노희 한국공업화학회 2003 공업화학 Vol.14 No.3

펄프섬유로부터 잉크입자를 효율적으로 제거하여 잉크함량이 적고 백색도가 높은 재생펄프용 탈묵제를 제조하였다 본 연구의 또 다른 목적은 고백색도에 필요한 여러 계면활성제의 적정조건을 찾고 재생펄프의 수율을 높이는 것이다. 본 연구에서 우리는 우수한 탈묵효과를 위해 스테아르산과 여러 유형의 계면활성제를 사용하였다. 그리고 탈묵효율에 미치는 여러 가지 고형 탈묵제의 효과를 알기 위하여 부상탈묵실험을 수행하였다. 그 결과 고백색도와 높은 수율을 얻을 수 있는 새로운 고형 탈묵제의 적절한 조합조성은 스테아르산 75%와 폴리옥시알킬렌알킬아릴에테르 6%를 혼합한 것이었다. 또한 탈묵효과를 폭넓게 적용하기 위해 기포력과 피 안정도, 분산능을 테스트하였다. 새로운 타입의 탈묵제는 폐지 탈묵시 우수한 분산능과 적당한 기포력과 안정성을 나타내었다. A new feinting agent for recycling of waste paper was produced. This agent efficiently removed ink particles from the pulp fiber and the resulting recycled pulp had a high brightness and a low content of residual ink. Efforts were made to find an optimum condition of various surfactants used for high brightness and yield of recycled pulp. In this study, stearic acid was used for various types of general surfactants for deinking. Flotation deinking experiments were conducted in order to examine the effect of various solid-type deinking agents. As a restult, an optimum combination of this new solid-type deinking agent, which resulted in high brightness and yield, was 75 wt% stearic acid mixed with 6wt% polyoxyalkylene alkyl aryl ester. This new type deinking agent had good dispersability, suitable foaming power and foam stability in deinking of waste paper.

急性 一酸化炭素 中毒症에 合倂된 肺浮腫의 臨床的 觀察

崔基鐵 全北大學校 1976 論文集 Vol.18 No.-

The causes and treatments of acute carbon monoxide poisoning have studied extensively in Korea, because of our life environment. However, pulmonary edema due to acute carbon monoxide poisoning has been rarely reported. The eight cases of pulmonary edema developed in acute carbon monoxide poisoning were experienced at Jeonbug National University Hospital from January 1975 to October 1975. Clinical manifestations, roentgen features, electrocardiographic changes and treatments of pulmonary edema in acute carbon monoxide poisoning are discussed with a review of the literature.

층화 이단 표본설계시 표본크기의 결정

최기철 부산 외국어 대학교 2002 外大論叢 Vol.25-2 No.-

층화 이단 표본설계를 한 후에 표본크기를 계산하는 문제는 일반적으로 유도된 공식이 닫힌형(closed form)이 아닐 때는 수치 해석적인 방법이 필요하다. 이 논문에서는 신과 최(2003)가 유도한 표본크기를 구하는 공식을 수치해석적으로 접근해 표본크기를 구하는 문제를 다룬다. 신과 최(2003)는 pps 집락추출과 각 집락에서 같은 크기의 부표본(subsample)을 추출하여 자체 가중이 되도록 표본설계를 하는 경우에 주어진 비용아래서 모총계의 추정량의 분산을 최소로 하는 최적의 표본추출율을 구하였다. We determine the sample size in stratified two-stage sampling under the fixed cost. Especially, we consider the optimum sampling fractions in pps cluster sampling subject to fixed cost. The optimum sample size is presented in the self-weighting form. We calculate the optimum sample size by simulation.

Plasminogen kringle (angiostatin) 분획의 유효부분 분석

최영기,서원덕,이종수,신광순,김철중 충남대학교 수의과대학 동물의과학연구소 1998 動物醫科學硏究誌 Vol.6 No.-

In order to inhibit the growth of the malignant tumor, the development of various drugs against the malignant tumors has been archived. The combination of these drugs made the tumor therapy possible, but in many cases, secondary matastasis of the tumor to the other organs after its removal has been frequently reported. The angiostain, recently purified and cloned, not only promtes the angiogenesis of the tumor itself in the primary tumor but also inhibits the angiogenesis and metastasis of the secondary tumors. In this study, the nucleic acid sequences of the angiostatin was investigated. And the angiostain gene was expressed in a prokayotic expression system(E. coli) and a eukayotic expression system(Pichia pastoris). The angiostain gene was futher subcloned into 6 clones to characterize its biological activity. In the near future the biological activity and the biochemical property of the protein encoded by each clone will be elucidated.

지역사회 주민의 인비인후과 영역질환의 사회의학적 조사

최상규,남철현,김무룡,김기열,강영우,문기내 慶山大學校 保健福祉硏究所 2002 保健福祉硏究 Vol.7 No.-

This study was conducted to examine ear, nose, and throat diseases of community residents and related factors in Korea. 475 people who were experienced in suffering from the ear, nose, and throat diseases were chosen as the subjects of this study. Data were collected in Daegu, Kimchon, Andong, Pohang, Kyungsan from February 1, 2000 to May 30, 2000. The results of this study are summarized as follows. 1. Among ear, nose, and throat diseases, the incidence of throat diseases was highest (42.3%). The incidence rate of nose diseases was 31.9%, while that of ear diseases was 25.7%. The incidence of these diseases were significantly related to the variables of sex, age, occupation, religion, education level, smoking, and drinking. 2. When the respondents were afflicted with ear diseases, 47.7% of them was treated in ear, nose, and throat hospitals or clinics, while 29.4% of them was treated in general hospitals or clinics. 13.2% of them just endured without receiving treatment. 5.7% of them was treated in their homes and 3.9% of them was treated in pharmacies. 3. 28.9% of the respondents was treated for their ear diseases during two weeks; 24.2% 'during one week'; 20.5% 'during three to four days'; 12.6% 'during one to two days'; 9.0% 'during one to two days'; 4.8% 'during over six months'. The period of treatment was significantly related to the variables of sex, age, occupation, marital status, religion, smoking, drinking, and exercise. 4. When the respondents took nose diseases, 27.4% of them was treated in ear, nose, and throat hospitals or clinics, while 24.7% of them was treated in general hospitals or clinics. 18.6% of them just endured without receiving treatment. 17.7% of them was treated in pharmacies and 5.9% of them was treated in their homes. 5. 27.0% of the respondents was treated for their ear diseases during three and four days; 23.6% 'during on week'; 17.3% 'during two weeks'; 13.5% 'during one to two weeks'; 10.0% 'during one to two months'; 8.6% 'during over six months'. The period of treatment was significantly related to the variables of sex, ccupation, religion, education level, smoking, drinking, and exercise. 6. The throat diseases were caused by cold (30.2%), tonsils (29.3%), and bronchitis (15.7%). When the respondents took throat diseases, 26.1% of them was treated in ear, nose, and throat hospitals or clinics, while 25.3% of them was treated in general hospitals. 20.2% of them was treated in pharmacies and 12.4% of them just endured without receiving treatment. 10.3% of them received reatment in clinics, while 5.6% of them was treated in their homes. 7. The level of satisfaction with treatment for ear diseases was 3.58±1.12 points on the basis of 5 points, while that for throat diseases was 3.19±0.085 points. In case of information sources on ear, nose, and throat diseases, 31.8% of the respondents obtained the information from doctors, while 21.4% of them got it from TV or Radio. 15.9% of them obtained it from family members, neighbors, or friends and 10.0% of them obtained it from magazines, newspapers or pamphlet. Only 7.0% of them got it from pharmacists. 8. 67.2% of the respondents thought that mass media dealt with the ear, nose, and throat diseases lightly. 40.6% of them replied that education and publicity of those diseases would be necessary, while 10.7% of them replied those would not be necessary. Among the ear, nose, and throat diseases, the incidence rate of throat diseases was highest (42.3%). The ear diseases showed the highest level of satisfaction with treatment, while the throat diseases displayed the lowest level of satisfaction with treatment. Although the diseases are very serious in Korea, they are dealt with lightly in terms of education and publicity through using mass media. Therefore, the government, otorhinolaryngologists, and related associations must make great efforts to prevent the diseases.

추적조사를 중심으로 한 腰椎間板脫出症에 대한 蜈蚣藥鍼의 臨床的 硏究

최회강,소기숙,고강훈,박소영,김성남,이종덕,원경숙,문형철,김성철 大韓鍼灸學會 2003 대한침구의학회지 Vol.20 No.3

Objective : This study is performed for the purpose of examining the efficacy of the scolopendrid(Scolopendra morsitans L) which has been to low back pain as a folk remedy. Methods & Results : Seventy patints with H.I.V.D. treated with the scolopendrid aquacupuncture and examined 4 tests; D.I.T.I., physical test, Oswestry disability index, and self-conscious pain rate were studied. And we follow up after discharge, we evaluated the present state and recovery period. Or we evaluated by herniated type and duration of onset. There was 58~97% of efficacy rate in each tests. Moreover, statistically valuable change in all 7D.I.T.I. points and in disability index and in self-conscious pain rate was showed. Conclusion : The scolopendrid aquacupuncture is possible to be effective terating the H.I.V.D patients. so we suggest the possibility using this new remedy to the H.I.V.D. patients.

오차항이 AR 과정을 따르는 다변량 회귀모형

최기철 부산 외국어 대학교 1999 外大論叢 Vol.19 No.3

The fundamental assumptions in linear regression are that the error terms have mean zero and are uncorrelated. However the assumption of uncorrelated or independent errors for time series data is often appropriate. We will present the method described by Cochrane-Orcutt and build the multivariate regression model.