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      • 달맞이꽃 뿌리의 성분에 관한 연구

        최윤수,석경순,이경선,전숙경 대구효성가톨릭대학교 1992 연구논문집 Vol.45 No.1

        Oenothera odorata Jacquin(Onagraceae), native to south America, is naturalized and grows wild in Korea. The seed oil, named evening primerose oil, of this plants is used for prophylacsis of adult disease. From the roots of this plant, β-sitosterol, β-sitosterol-3-O-D-glucopyranoside and asiatic acid were isolated. The structures were elucidated by spectrometric methods and chemical transformation.

      • KCI등재

        복수과 진료 환자의 중복 처방에 대한 분석 및 평가

        이지은,장혜경,오지영,유윤경,김현지,임숙인,연숙희,강진숙,최귀령 한국병원약사회 2003 병원약사회지 Vol.20 No.1

        In an aging society, there is an increasing possibility of the duplication of the drugs given to patients because they take many kinds of drugs. Among the prescriptions given to the patients who was treated at multiple ambulatory clinics in St. Mary's hospital for one month of September, 2002, in which drugs that has identical or similar effects are prescribed, we analysed and evaluated them by patients' characteristics, kinds of medication, severity of side effects on a case by case basis. More, we assessed the potential additional costs. As a result of this study, the duplication rate turned out to be 6.69% and it was shown that the proportion of the elderly patients over 60 was high. The gastro-intestinal medications took up a large part and most of the cases showed that the danger caused by double taking of medicine was slight, but there were some examples in which the serious side effects were predicted. Expected additional costs were the average 11.349 won and it ranges from the minimum of 56 won to the maximum of 135,720 won. In conclusion, the management of drug histories of the patients who need the plural treatments is very important and the necessity of the individual and professional guidance of taking medicines for the elderly patients is emerged, too.

      • KCI등재

        증류수와 인공타액에서 충전용 글래스 아이오노머 시멘트의 불소유리량에 대한 평가

        김경남,이진숙,류지헌 大韓齒科器材學會 1994 대한치과재료학회지 Vol.21 No.2

        The purpose of this study was to compare the amount and pattern of fluoride release from restorative cements into de-ionized water with that in artificial saliva . Three light-curing glass ionomers , a water-setting glass ionomer⁴, two conventional glass ionomers and a resin-based material were selected. Sixteen cylindrical samples(6.5mm×2.5mm)of each cement were prepared. Each was individually suspended in 5ml of either de-ionized water or artificial saliva(eight samples in each medium) and stored at 37℃. The media were changed and fluoride concentration was measured with fluoride electrode for 90 days. The data showed that: (1) Cumulative fluoride release from Ketac-Fil, Dyract and VariGlass VLC into the artificial saliva was significantly less than in de-ionized water(p<0.05) as tested by ANOVA. The cumulative amounts of fluoride into the saliva were 2.52, 0.10 and 0.65 ㎎F /㎤. And they accounts for 49%, 14% and 84% of the amounts into de-ionized water respectively; (2) Ketac-Fil released more fluoride than other materials in both media(p<0.001). Vitremer, Iono Gem, and Dyract released 37%, 38%, and 13% of the cumulative amount of fluoride from Ketac-Fil into deionized water, respectively, but they released 73%, 78%, and 4% of that into artificial saliva, respectively. It is concluded that the release of fluoride from some restorative glass ionomers is highly variable according to the medium in which glass ionomer is stored, and so artificial saliva should be used to test fluoride release of restorative glass ionomer cements.

      • KCI등재

        치과교정용 브라켓 접착제로서 불소함유 레진과 글라스 아이오노머 시멘트의 물성 평가

        김경남,이진숙 大韓齒科器材學會 1994 대한치과재료학회지 Vol.21 No.2

        Decalcification of enamel is a significant clinical liability during orthodontic treatment with fixed appliances. Fluoride-releasing resin adhesives are used to solve this problem but its bond strength and the amount of fluoride released have not been fully evaluated yet. And the interest in glass ionomer cement is growing as an adhesive releasing fluoride. But previous studies have indicated that lining glass ionomer cements have low bond strength. Thus, the shear tensile bond strength after 24 hours and after thermocycling and the amount of fluoride released for 40 days of experimental groups were evaluated and compared with those of the control group in this study. No-mix type resin adhesive(Mono-Lok 2) was used as a control, and resin cement with sealant releasing fluoride(Phase Ⅱ), fluoride-releasing light cured resin cement(Orthodontic Adhesive Bonding System), lining(Ketac-Cem), water-set filling(Chemfil Superior) and light-cured filling glass ionomer cement(Vitremer) were used as experimental groups. Results were as follows: 1. All adhesives in this study showed enough shear tensile bond strength to use clinically except Ketac-Cem. 2. After thermocycling, the shear tensile bond strength of Orthodontic Adhesive Bonding System and Chemfil Superior were significantly decreased, but that of Phase Ⅱ was increased. And those of Mono-Lok 2, Ketac-Cem and Vitremer were not significantly different from 24 hours(P<0.05). 3. As for adhesives releasing fluoride, the amount of fluoride released went down sharply for 10 days, and after 10 days it showed a little bit decrease. Phase Ⅱ didn't release fluoride after 10 days. 4. After 40 days, Chemfil Superior and Vitremer released significantly greater amount of fluoride than Orthodontic Adhesive Bonding System(P<0.01). According to the above results, it was considered that glass ionomer cements for filling materials were available to be used as orthodontic bracket adhesives. And they were more effective for releasing fluoride than fluoride-releasing resins.

      • KCI등재

        사무직 근로자들의 직무 스트레스와 피로

        차경태,김일희,고상백,현숙정,박준호,박종구,차봉석,장세진 大韓産業醫學會 2008 대한직업환경의학회지 Vol.20 No.3

        목적: 이 연구는 전국 규모의 조사 연구에서 수집된 자료 중 사무직 근로자들을 대상으로,사회인구학적 특성,직업 특성,건강행태,직무 스트레스와 피로수준 간의 관련성을 분석하는 데 있다. 방법:‘한국인 직무스트레스 측정도구의 표준화 전국 조사연구National Study for Development and Standardization of Occupational Stress (NSDSOS Project: 2002∼2004)’를 위해 2002년 5월 1일부터 2003년 5윌 30일 까지 수행되었으며,전국의 사업장에 근무하는 근로자 30,146명(남자: 84%,여자: 16%) 중 사무직 근로자 4,457명(남자: 68.9%,여자 31.1%)을 연구 대상으로 하였다. 자료수집방법은 사업장을 방문하여 보건 및 안전관리자 등에게 연구의 취지를 알린 후 설문조사에 대한 협조를 구하고 응답자 직접 기입법을 이용 하였으며,사회인구학적 특성,직업적 특성,건강관련 요인,KOSS-SF를 이용한 7개의 직무 스트레스 요인,그리고 MFS를 이용하여 피로 수준에 영향을 주는 요인에 대해 분석하였다. 결과: 일반적 특성,작업관련 특성,건강행태관련 특성 및 직무 스트레스 요인이 근로자들의 피로와 강한 관련성이 있음이 입증되었으며,특히 직무 스트레스의 하부 요인 중에서도 피로와 관련성을 보이는 요인이 남녀별로 다소 상이 하게 관련된다는 것을 발견할 수 있었다. 남자의 경우는 직무 스트레스의 하부 영역 중 직무 요구도,직무 불안정성,보상부적절 등이 영향력이 높은 주요 직무 스트레스 요인이었던 반면,여자는 직무 요구도,보상부적절,직장문화가 주요한 직무 스트레스 요인이었다. 결론: 직장인 피로가 갖는 보건학적 의학적 경제학적 중요성을 감안할 때,조직의 생산성 향상과 근로자 개개인의 삶의 질 향상 및 건강증진을 위해선 직무 스트레스 관리 프로그램이 절실히 요청된다고 볼 수 있다. Background & Objectives: A growing body of research has documented that occupational stress is closely associated with increased risk of fatigue. This study was conducted in an effort to assess the relationship of occupational stress to self-perceived fatigue among Korean white collar employees. Methods: Data were obtained from the National Study for Development and Standardization of Occupational Stress (NSDSOS Project, 2002-2004). Among them, a total of 4,502 white collar employees were recruited. A structured questionnaire was employed to evaluate the participants' sociodemographics, job-related factors, health-related behaviors, occupational stress, and self-perceived fatigue. Occupational stress and self-perceived fatigue were assessed using the Korean Occupational Stress ScaleShort form (KOSS-SF) and the Multidimensional Fatigue Scale (MFS), respectively. Results: In logistic regression analyses, occupational stress was associated with an increased risk of fatigue, and some domains of occupational stress had different effects on fatigue by gender (job demand, job insecurity, and lack of reward for men, job demand, lack of reward, and discomfort in occupational climate for women), which indicates that occupational stress may perform a slightly different role in increasing the risk of fatigue by gender. Conclusion: The results of this study suggest that occupational stress is a determinant predictor of self-perceived fatigue. Thus, a stress management program for the reduction of occupational stress, and the promotion of white collar worker's health and quality of life is strongly recommended. Some limitations of this study and considerations for future studies were also discussed.

      • KCI등재

        치과교정용 NiTi 합금계 선재의 탄성과 상변태 거동에 대한 열처리 효과

        이진숙,김광만,김경남 대한치과기재학회 1997 대한치과재료학회지 Vol.24 No.1

        Due to unique property of superelasticity, NiTi has been used widely since their introduction to the orthodontic specialty by Andreasen and Hillmann. But sufficent evaluation of superelasticity of domestic marketed wires has not yet been made. It has been known that heat treatment caused changes not only of elastic behavior but also of phase transformation behavior, an important factor of superelasticity. So, this study was investigated into varied ways of heat treatment of wires for orthodontic force proper for each clinical case. Each elastic behavior of 6 commercial NiTi alloy orthodontic arch wires(LG's ORTHOLLOY, G & H's Nickel Titanium arch wire, ORMCO's NI-TI and COPPER NI-TI, TOMY's SENTALLOY and 3M Unitek's Nitinol) were examined, and in order to study the effect of heat treatment on elasticity and phase transformation behavior, 3-point bending test, differential scanning calorimetry and X-ray diffraction with each wire heated at 350℃, 450℃ and 550℃ for 1hour were carried out compared with a as-recieved group. The results were as follows : 1. As a result of 3-point bending test in a control group, all wires had superelasticity and COPPER NI-TI showed the lowest maximum load as well as minimum(P<0.05). 2. As a result of 3-point bending est, except Nitinol and COPPER NI-TI, the wires in the group heated at 450℃ had lowest maximum and minimum load than that of a control group, and higher maximum and minimum load that of COPPER NI-TI in control group, and had superelasticity without and permanent deformation(P<0.05). 3. Phase transition temperature of all wires heated at 350℃ except COPPER NI-TI became higher but it became lower when they were heated at 450℃ and 550℃. 4. All wires in control group had austenite structure and when they were heated, martensite phase increased, and R phase appeared when heated at 550℃. The wires used in this study were changed in phase transition temperature, structure and elastic behavior as well by heat treatment. So this study showed that even the same kind of wire could be varied and used after heat treated, choosing proper load in accordance with each orthodontic clinic case.

      • 기업의 텔레마케팅 운영 현황과 문제점 및 개선 방안에 관한 연구

        김영숙,이경옥 경성대학교 2000 論文集 Vol.21 No.2

        In an information-oriented society consumers take account of not only the quality of goods but also the accompanying service. To follow the trend of the times telemarketing is indispensable. This thesis consists of the study of literature on telemarketing and the case study. The background, the concept and the general operating system of telemarketing are examined. In a case study, how to operate it in Pusan are analized. Last but not lest, suggestion the ways to operate telemarketing more efficiently and to activate it are also presented. Followings are suggested as solutions for would-be problems Enthusiastic and progressive concerns on the tele-marketing system implementation. And, total execution on the update and implementation of consumer information database. Finally, Professional counselors recruit and active measures or solution for trouble problems. With the complete execution of above, the perfect tele-marketing for consumer satisfaction management could be given to the public.

      • KCI등재
      • 외식산업체에서의 식음료 비용 절감을 위한 통제 방안

        허경숙,이복희,이소영 중앙대학교 생활과학연구소 2000 생활과학논집 Vol.13 No.-

        Recently, foodservice industry has been expanded rapidly and became the one of tile most profitable organizations in modern society due to the income level and people's perceptions on the quality of life have been changed. Control is the one of the basic management functions along with planning, organizing, directing, and coordinating. These basic functions interact to achieve the beverage costs. The food and beverage cost consists of 2/3 of the operating costs in the restaurants. In many cases, cost control is lacking in the food service industry since most food service operations are relatively small and management skill is relatively unsophiscated. Difficulties in cost control has risen that nature of food hurts control: easily spoiled, limited shelf life, leftovers, hampered food quality without proper storing and preparation, easy to thieve etc. The food cost has risen improper handling of employees by management. To control food and beverage cost, it is better to use the pre-operation and post-operation controls. It complements each other. Food cost control covers from the menu planning until the food is served and money is received from the patrons. A manager can control food costs by closely supervising food production, portion control sizes and serving procedures. Beverage control is believed to be easier than the food-cost control, but it has special problems: tempt to thieve since it is expensive and valuable, and easily transportable. Beverage control is potentially pofitable and thus should be controlled through careful practices in conjunction with various beverage accounting systems including the computerized and automatic-dispensing systems. These systems may lower costs because they reduce spillage and virtually eliminate overpouring. Sven though the practical applications to control the food and beverage cost can achieve the cost reduction. Still it is not the only panacea. It is important to remember that strict controls can be self-defeating because their rigidness can alienate the workers. Therefore, managers should concerned with individuals doing the work rather than supervision and quantified measurement. Also they should stress that if workers feel positively toward an organization they will do their best and need little control.

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