• Korea-Australia Rheology Journal
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• v.17 no.3
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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.

• Journal for History of Mathematics
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• v.10 no.2
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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.

• Korean Journal of Pharmacognosy
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• v.1 no.2
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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.

• Proceedings of the Korea Society for Industrial Systems Conference
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• 1996.10a
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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.

• Korean Architects
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• s.655
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• pp.17-17
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• 2023

• Journal of Korean Academy of Nursing
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• v.6 no.2
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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).

• KOREAN JOURNAL OF CROP SCIENCE
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• v.48
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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.

• Journal of Labour Economics
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• v.37 no.3
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• pp.75-99
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• 2014

This study analyzes the initial effect of meister high school policy on labor market by DID based on the fact that most of the meister high schools that had its first graduates in 2013 were not newly established but assigned by government. We estimated employment and real hourly wages as quantitative measures and intent to remain in labor market as qualitative one. The results shows that, the meister high school policy increased the employment rate but didn't do real hourly wages and intent to remain. Therefore, meister high school policy can be assessed to be successful in short-term only in quantitative aspects. The study has its contribution as the first study of estimating the net effect of the policy.

• Journal of Korean Physical Therapy Science
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• v.8 no.1
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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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• v.43 no.1
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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.