• Korea-Australia Rheology Journal
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• 제17권3호
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• pp.111-116
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• 2005

The new tube model with variable diameter (Marrucci and Ianniruberto, 2004), recently introduced to interpret new elongational data of polymer melts, is here extended to encompass arbitrary flows, specifically shear flows. The predicted results compare well with existing data of entangled polymer melts. Challenges still remain when the comparison is extended to recent elongational data on entangled solutions by Sridhar.

• 한국수학사학회지
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• 제10권2호
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• pp.64-71
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• 1997

This paper is a sequel to [5]. We investigate a relation between the history of modern western logic and religion. The period from the seventeenth century to the present day is dominated by science; traditional religious beliefs remain important, but are felt to need justification, and are modified wherever science seems to make this imperative.

• 생약학회지
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• 제1권2호
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• pp.1-10
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• 1970

The cyclization of geranylgeranyl pyrophosphate followed by ionization, proton elimination or cation center migration produces dicyclic, tricyclic and tetracyclic diterpenoids. The role of some of diterpenoids in animals is well known but their precise functions in plants remain to be explained.

• 한국산업정보학회:학술대회논문집
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• 한국산업정보학회 1996년도 추계 학술 발표회 발표논문집
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• pp.205-210
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• 1996

The bootstrap procedure is suggested as a useful method for point and interval estimation of system availability . Its validity and robustness has been shown in special , but representative case, by various sampling experiments. Alternative to the bootstrap suggest themselves (e.g. a variation of the 'F' technique, but remain to be evaluated, as do variations on the bootstrap itself.

• 건축사
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• 통권655호
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• pp.17-17
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• 2023

• 대한간호학회지
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• 제6권2호
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• pp.10-17
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• 1976

High turnover rate of nurses working in the hospitals is one of the serious problems in nursing society at the present time which can result in reducing the economic condition of hospital and providing low quality nursing care. This study was designed identify the causes and turnover rate of 248 clinical staff nurses in relation to their rewards and incentives in 6 hospitals located in Seoul from Oct.1 to Oct. 20, 1975. Questionnaires and analyzing items were formulated on the basic of Mallow's hierarchy of basic needs which were grouped in three categories such as safety and social and psychological rewards and incentives. The data were analyzed by means of mean, Chi square, Percentage and F- ratio. The following results were obtained: 1) There were 69% of respondents who have definitely decided or hoped to leave the hospital. 2) Those who are in the range of 26 to 30 years of age showed the strongest desire to leave the hospital. 3) There was no significant difference between those who want to leave the hospital and those who want to remain in relation to age, educational background, past experience and expecting period of clinical work. However, the married nurses tend to remain in the hospital than the single. 4) When the rewards scores in the three categories were calculated, psychological rewards were placed in the first rank by the mean score 14.09 ; and each of safety rewards and social rewards were 9.06 and 4.84. When the scores in three categories were compared it was found that there was significant difference. (F〈0.01).

• 한국작물학회지
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• 제48권
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• pp.65-71
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• 2003

Sesame seed are one of the oldest oil-bearing crops known to man. Not only are they nutritious, they are physicologically beneficial. Because of these properties, the promotion of sesame as a crop is set to increase from now on. The lignan component of sesame, which has an antioxidative function, varies considerably. In addition, the seeds remain viable for longer than other crops. At low temperature, it has been reported that the seed remain viable for up to thirty years. This is due to the lignan content of the seeds. In the last twenty years, the mysteries of the natural chemistry of sesame seeds have been unravelled one by one. Up to now, the lignan component has been found to have an $\alpha$-tocopherol synergist effect, an anti-aging effect, a cancer suppressing effect, a hypertension reduction effect, an effect on the promotion of liver function, an effect on the control of the ration of unsaturated fat, and an effect on the synthesis of unsaturated fatty acids. The lignan component of sesame does not simply have an anti-oxidant function, but has diverse recently discovered physiological uses which make the study of lignan highly rewarding.

• 노동경제논집
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• 제37권3호
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• pp.75-99
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• 2014

이 연구는 2013년도에 마이스터고 졸업자를 배출한 학교들의 상당수가 이전의 전문계 고등학교 중에서 마이스터고로 지정되었다는 사실에 착안, 이중차분법을 적용하여 마이스터고 정책의 초기 노동시장 효과를 분석하였다. 취업률이라는 양적 측면, 시간당 임금과 노동시장 정착 의도라는 질적 측면에서 초기 노동시장 성과를 추정하였다. 분석 결과, 마이스터고 정책은 졸업자의 취업률을 높이는 효과를 가져왔으나 시간당 임금을 높이거나 노동시장 정착 의도를 높이지는 않은 것으로 나타났다. 따라서 양적인 측면에서만 마이스터고 정책은 어느 정도 단기적인 효과를 거두고 있다고 평가할 수 있었다. 본 연구는 마이스터고 정책의 순 효과성을 추정한 최초의 연구라는 점에서 의의를 찾을 수 있다.

• 대한물리치료과학회지
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• 제8권1호
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• pp.833-840
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• 2001

This study was attempted to examine the relationship between job satisfaction and turnover intention of physical therapist in order to suggest some method to enhance their job performance and the degrees of job satisfaction. High turnover intention of physical therapist is one of the serious problems at the present time which providing low quality physical therapy. The data were collected from July 1, to August 31, 2000 and analyzed by ANOVA, Pearson Correlation Coefficients. The summarized result are as follows: 1. The job satisfaction score of physical therapists showed the highest of the pride of patient treatment and total mean score was 2.96. 2. Those who were in the range of 26 to 30 years of age showed the strongest desire to leave the hospital 3. There were 68.8% in male. 47.6% in female who hoped to turnover intention. 4. There were significant difference between those who want to leave and those who want remain in relation patient number, work hospital work years. 5. There were no significant difference between those who want to turnover intention and those who want remain in relation patient number and work years. 6. The major reason for job satisfaction were work time and work areas.

• Mycobiology
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• 제43권1호
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• pp.9-13
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• 2015

Medicinal fungi, taken whole or as various forms of extracts, have been used to alleviate, cure or prevent human ailments since pre-historic times. In particular, Asian cultures have incorporated a variety of mushrooms into their medical practices. Chemically pure, bioactive metabolites from fungi have been a mainstay of modern pharmacological research and in addition to antibiotics, include anticancer agents, immunosuppressants, enzyme inhibitors, antagonist and agonists of hormones, and a variety of psychotropic substances. However, to date not many studies have focused on the possible health benefits of odorant volatile organic compounds (i.e., gas phase compounds). An analysis of these compounds for their health related effects will expand the range of compounds available for the treatment of chronic and acute diseases. This review highlights phenolic acids and monoterpenes from Asian medicinal mushrooms (AMMs), which not only produce pleasant odors but also have antioxidant and antibacterial effects. Odorant bioactive volatile phase compounds from medicinal mushrooms remain an essentially untapped source for future medicines, and AMMs remain a promising resource for future pharmacological research.