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      • KCI등재

        在日韓國人의 生活文化의 異質化와 適應過程에 關한 保健學的 硏究

        金正根(Jong-Kun Kim),張昌谷(Chang-Gok Chang),林達旿(Dar-Oh Lim),金武采(Mu-Chae Kim),李州烈(Ju-Yul Lee) 한국인구학회 1992 한국인구학 Vol.15 No.2

        After world war Ⅱ Japanese life expectancy has been improved remarkably, and reached the highest level in the world around late 1970's. The life expectancy of Korean has also shown tremendous improvement in recent years with about 20 year's gap from the Japanese. The reason of rapid improvement of life expectancy can be explained by changes in the structure of cause of death due to health system, living standard, social welfare, health behavior of individuals and so on. Korean in Japan is placed under different situations from both Korean in Korea and Japanese in these regards, and expected to show different picture of cause of death pattern. The objective of this study is the comparision of changing patterns of cause of death of three population groups, Korean in Japan, Korean in Korea and Japanese, and to investigate the reasons which effect to the structural difference of mortality cause with special emphasis on health ecological aspects. One of the major limitations of the Korean causes of death statistics is the under-registration which ranges about 10% of the total events, and inaccuracy of the exact cause of death. Some 20% of registered deaths were unable to classify by ICD. However, it is concluded that the Korean data are evaluated as sufficient to stand for over-viewing of trends of cause of death pattern. The evaluation is done by comparing data from registration and field survey over the same population sample. Population data of Korean in Japan differ between two sources of data; census and foreigner's registration. Correction is done by life table method under the assumption that age-specific mortality pattern would accord with that of the Japanese. The crude death rate was lowest among Korean in Japan, 5.7 deaths per 1,000 population in 1965. The crude death rates of Korean in Japan and Japanese are increasing recently influenced by age structure while Korean in Korea still shows decreasing tendency. The adjusted death rate is lowest among Japnaese, followed by Korean in Japan, and Korean in Korea. The leading causes of death of Korean in Korea until 1960's was infectious diseases including pneumonia and tuberculosis. The causes of death structure changed gradually to accidents, neoplasm, hypertensive disease, cerebro-vascular disease in order. The main difference in cause of death between Korean and Japanese is high rate of liver diseases and diabetes for both Korean in Japan and Korea. A special feature of cause of death among Korean in Korea is remakably high rate of hypertensive disease, which is assumed to be caused by physicians tendency in choosing diagnostic categories. The low ischemic heart disease and high vasculo-cerebral disease are the distinctive characteristic of the three population groups compared to western countries. Specific causes of death were selected for detailed sex, age and ethnic group comparisons based on their high death rates. Cancer is the cause of death which showed most drama tical increase in all three population groups. In Korea 20.1% of all death were caused by cancer in 1990 compared with 10.5% in 1981. Cancer of the liver is the leading cause of cancer death among Korean in Japan for both sexes, followed by cancer of the lung and cancer of the stomach, while that of Korean in Korea is cancer of the stomach, followed by cancer of the liver and cancer of the lung for male. Causes of infant mortality were examined among the three population groups since 1980 on yearly bases. For both Japanese and Korean in Japan, leading cause of death ranks as conditions originating in the perinatal period, congenital anomalies, accidents and other violent causes. Trends since 1980 for these two population groups in the leading cause of infant mortality showed no changes. On the contrary, significant changes in leading cause of death structure in Korea were observed : The ranking of leading cause of death in 1981 were congenital asnomali

      • 계면활성제를 첨가한 TMA-포접화합물의 상변화에 관한 실험적 연구

        김창오,정낙규,김진흥,오율권 朝鮮大學校 機械技術硏究所 2001 機械技術硏究 Vol.4 No.1

        The purpose of this study is to investigate the propriety of TMA clathrate as a cold storage medium. Particularly, this is to examine the extent of subcooling improvement when the surfactants are added to the TMA clathrate, because water used cold storage material has low phase change temperature and subcooling. This study has been analyzed and compared with TMA 30wt% clathrate how phase change temperature, subcooling and specific heat in the various concentrations are changed. This results view to be improved phase change temperature and subcooling of TMA30wt% as a cold storage medium, when it had some surfactant. Additionally, it is that surfactant must be controlled under available solution limit and study for new additive must be lasted to know its effect.

      • High efficient rice transformation method by modifying co-cultivation conditions

        Hyang-Mi Park,Yul-Ho Kim,Tae-Young Hwang,Chang In Yang,Ji Ung Jeung,Young Chan Cho,Kyoung Ho Kang,Chung-Kon Kim 한국육종학회 2012 한국육종학회 심포지엄 Vol.2012 No.07

        Rice transformation method using A. tumefaciens has already been widely used to generate transgenic plants, the transformation rate is still low in most Korean elite cultivars. We made several modifications of the standard protocol especially in the co-cultivation step to improve the efficiency of the rice transformation. The co-culture medium was modified by the addition of three antioxidant compounds (10.5㎎/ℓ L-cysteine, 1mM sodium thiosulfate, 1mM dithiothreitol) and of Agrobacterium growth-inhibiting agent (5㎎/ℓ silver nitrate). Co-cultivation temperature (23. 5℃ for 1 day, 26.5℃ for 6 days) and duration (7 days) were also changed. The plasmid of pMJC-GB-GUS carrying the GUS reporter gene and the bar gene as the selectable marker was used to evaluate the efficiency of the transformation. After co-cultivation, a high level of GUS gene expression was observed in calli treated with the modified method. It is likely that those newly added compounds helped to minimize the damage due to oxidative bursts during plant cell-Agrobacterium interaction and to prevent necrosis of rice cells. And the transformation rate under the modified method was also remarkably increased approximately 8-fold in Heungnambyeo and 2-fold in Ilmibyeo as compared to the corresponding standard method. Furthermore, we could produce the transgenic plants stably from Ilpumbyeo which is a high-quality rice but its transformation rate is extremely low. Transformation and the copy number of transgenes were confirmed by PCR, bar strip and Southern blot analysis. The improved method would attribute reducing the effort and the time required to produce a large number of transgenic rice plants.

      • 한국인 중.고등학생의 체격, 체형 및 그 성장에 관한 연구

        이영춘,김종석,박희명,채의업,주영은,이륭창,류호열,김규수,김정묵,최경숙,이열희,이태호,우원형,신현찬,박원학,Lee, Young-Choon,Kim, Chong-Suk,Park, Hi-Myung,Chae, E-Up,Choo, Young-Eun,Lee, Yung-Chang,Ryoo, Ho-Yul,Kim, Kyu-Soo,Kim, Chung-Muk,Choi, Kyu 대한생리학회 1970 대한생리학회지 Vol.4 No.1

        Measurement and analysis of the physical status (height, body weight, breast girth, sitting height. length of leg, length of thigh, thigh girth, crural length, length of arm, brachial length, antebrachial girth and skinfold thickness), physical types and the growth were made to the 360 Korean middle and high school boys aged between 12 and 17 years in Taegu City. The physical status was evaluated and expressed as dispersion and the Physical type as percentage of each status to height, and the growth was analysed by the growth formula. The results are as follows; 1) The increase of the volumes of Physical status was slowest between 12 and 13 years and fastest between 13 and 14 years in general. 2) The increase of the volumes of thigh girth and antebrachial girth showed a linear pattern until 16 years. 3) The coefficient of variation was largest in skinfold thickness $(16.3{\sim}28.4%)$ followed by body weight $(10.0{\sim}14.3%)$, antebrachial girth $(4.8{\sim}19.60%)$ and length of thigh$(6.3{\sim}13.6%)$. The coefficients of variation in all the other status were similar $(4{\sim}7%)$. 4)The physical indices of body weight, breast girth, sitting height, length of thigh, thigh girth, antebrachial girth and skinfold thickness increased as age increased while the others decreased except the brachial length, which showed no significant change. 5) Ratio of growth quantity was largest in body weight followed by skinfold thickness, and the others were all similar. 6) Growth rate and specific growth rate decreased in the all the status analysed as age increased except in the skinfold thickness in which an increase was noted. 7) Growth gradient was increased along the increase of age in breast girth, sitting height, crural length, brachial length and in skinfold thickness. However a decrease was observed in the other status except in the body weight which was decreased until 15 years of age and increased thereafter.

      • DSS의 모델베이스 내에서 모델통합에 관한 연구

        김창대,정대율 동서대학교 부설 연구소 1996 연구소 논문집 Vol.1 No.-

        Within the field of model management systems(MMS), the model integration has emerged as an important area of research. A principal objective of model integration in a model bases i to increase the porductivity of organizational modeling and decision-making activity. Recently, object-oriented concepts and technology are on the leading edge of programming language and database systems research, and their usefulness in those contexts has been successfully demonstrated. The adoption of object-oriented concept to the model integration has several benefits. Model integration problem can be classified into functional integration and definitional integration. In functional model integration, two models can be integrated by its ports. Definitional integration involves the logical linking of similar model schema. This paper showed a logical flows of model integration, and illustrated how model relationships can be detected through the concept of the object predicate. A procedure to achieve model integration is also proposed.

      • 敎職員의 專門性 向上과 人事制度 改善에 關한 硏究

        金昌洙,鄭浩杓,朴鍾烈 慶北大學校 師範大學 1989 敎育硏究誌 Vol.31 No.-

        The purpose of this study is the development of the professionalization of educational personnel with effective personnel system. Therefore, this study 1) analyzes the problems of educational personnel system, 2) and suggests the strategies of improvement in educational personnel system. The methods of this study are the document analysis and the survey with questionaire. The major findings of this study are drawn as follows ; 1) Educational organization needs the professionalized personnel at various level of educational position, and has the specific character of flat organization. 2) In vertical and horizontal spcialization, the arrangement of educational position in educational personnel is needed to divide and concrete positions in order to implement educational personnel adminstration effectively and efficiently. 3) Professionalizing the education personnel is persistently needed for attaining educational goals and objectives efficiently. The studies should be persistantly investigated on the job analysis on educational agency, and the function of supervision on educational administration agency for the future.

      • 일본·미국·독일 학술연구 지원기관의 학회지원 비교연구

        김성열,고창규,정규영,정유성 경남대학교 교육문제연구소 2002 敎育理論과 實踐 Vol.12 No.2

        The Korea Research Foundation(KRF) has supported the research activity of the academic society through 'Conference Grant Program' and 'Journal Publication Subsidy program'. The purpose of this paper is to reconsider this existing KRF' support programs for the academic society by analyzing the actual condition of foreign research foundations' aid for their academic society. To find implications, this study analyzes three countries' research foundations cases: Japan Society for the Promotion of Science (JSPS), National Science Foundation (NSF), National Endowment for the Humanities (NEH), American Council of academic Societies(ACLS), and Deutsche Forschungsgemeinschaft (DFG). Data of this study collected through related research publications, internet, and interview with the persons concerned of JSPS and DFG. Based on the findings, some implications for formulating a support program for the research activity of the academic society can be suggested as follows: First, the category 'promotion of publication of scientific research results' in Grant-in-Aid for Scientific Research in JSPS was designed to provide support to the academic society of Japan. In spite of this support, the FY 2000 amount for this progam was 2.59% in JSPS' total grant. NSF, NEH, ACLS, and DFG have give no support to the academic society itself. As a general principle, a academic society of Korea like that of the United States and German is required to meet its expense through membership fee. But considering Korean academic society's financial difficulty, it is necessary for KRF to support the research activity of academic society for a time. Second, it needs to publish chargeable scientific periodicals for academic society's self-supporting. In addition, like ACLS, there needs to be formulated the system which can be supported by income from endowment, private grants, and private gifts. Third, like JSPS's grant-in-aid for 'Scientific Periodicals', it needs to bring in the principle of high competition in the allocation of KRF's existing 'Journal Publication Subsidy program. Fourth, besides the KRF's existing subsidy program for academic society, KRF needs to support academic society's educational program for student, teacher, and individual citizens in order to disseminate academic information and strengthen the scientific potential of Korea. Finally, it is necessary to formulate the system that the representatives of learned society take part in the academic policy-making body, screening committee, and selection process of KRF.

      • KCI등재
      • KCI등재

        쇄골두개이골증의 증례 : a case report

        김재덕,이창율,유충현 大韓口腔顎顔面 放射線學會 2004 Imaging Science in Dentistry Vol.34 No.1

        Cleidocranial dysplasia is a rare and autosomal dominent disorder characterized by aplasia or hypoplasia of the clavicles, an open fontanelle, dental abnormalities, and short stature. A 17-year-old female who presented with short stature and subsequent delay in eruption of permanent teeth is described. she showed the abnormal hypermobility of the shoulder, ocular hypertelorism and concave nasal bridge. Radiographs revealed the underdeveloped maxilla, defect of the cranium in the fontanelle region, and aplasia of the clavicles. Characteristically, panoramic view revealed near parallel-sided borders of the ascending ramus and downward curvature of the zygomatic arch with hypoplasia. The prolonged retention of deciduous teeth with delayed eruption of permanent teeth and multiple embedded supernumerary teeth were striking. Radiographic and clinical investigations revealed Cleidocranial dysplasia.

      • KCI등재

        디지탈영상에서 골판톰의 프랙탈분석

        김재덕,김진수,이창율 대한구강악안면방사선학회 2005 Imaging Science in Dentistry Vol.35 No.1

        Purpose : (1) To analyse the effect of exposure time, ROI size and one impact factor in the image processing procedure on estimates of fractal dimension; and (2) to analyse the correlated relationship between the fractal dimension and the Cu-Eq value (bone density). Materials and Methods : The cylindric bone phantoms of 6 large and 5 small diameter having different bone densities respectively and human dry mandible segment with copper step wedge were radiographed at 1.0 and 1.2 sec esposure (70 kVp, 7 mA) using one occlusal film and digitized. Eleven rectangular ROIs from 11 cylindric bone phantoms and 4 rectan-gular ROIs from cortical, middle, periodontal regions, and socket of bone were selected. Gaussian blurred Image was subtracted from original image of each ROI and multiplied respectively by 1, 0.8, and 0.5, and then the image was made binary, eroded and dilated once, and skeletonized. The fractal dimension was calculated by means of a box counting method in the software ImageJ. Results : The fractal dimension was decreased gradually with continued bone density decrease showing strong correlations (bone phantom; r>0.87, bone; r>0.68) under 70 kVp 1.0 sec M = 0.8. Fractal dimensions showed the significant differerence (p<0.05) between two different exposure times on the same small ROI of bone phantom. Fractal dimensions between two different sizes of ROI on bone phantom showed the significant differerence (p<0.05) under 1.2 sec exposure, but did not show it (p>0.05) under 1.0 sec exposure. Conclusions : Exposure time, ROI size, and modifying factor during subtracting could become impacting on the results of fractal dimension. Fractal analysis with thoroughly evaluated method considering the various impacting factors on the results could be useful in assessing the bone density in dental radiography.

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