• Quality Improvement in Health Care
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• v.5 no.1
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• pp.28-40
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• 1998

Background : Many patients have been frequently complaining that they have to spend couples of hours in hospital on visiting outpatient clinic. Among several steps, two major time consuming steps were waiting to see a doctor and/or waiting at pharmacy to get medicine. Therefore not only to provide the proper guidance for medication or counseling on health affairs but also to make waiting time short is very important for the better hospital services. The aim of this study is to validate several time-saving processes to reduce waiting time at outpatient pharmacy and its efficacy. Methods : We surveyed the time interval actually taken to receive medicine after issuing prescription by doctors, and analyzed the data on the bases of relevant or possible causative factors. Then following processes were given to reduce waiting time and resurveyed and compared both data to validate efficacy of those processes : 1. No work-off on Monday and Tuesday 2. Work hour shift to start 30 minutes earlier 3. Changeable work shift between outpatient pharmacy and ward pharmacy according to work load 4. Use of pre-made medicines prescribed more frequently by certain doctors at certain time 5. Cooperation with doctors to use set prescriptions. Results : Before the process, mean waiting time at pharmacy was 29.2 minutes and most time consuming period was from noon to 1 PM, 3 to 4 PM, 1 to 2 PM in order of frequency. Only 37.7 % of patients could get the medicine within 20 minutes. Three times of surveys after process showed mean waiting time at pharmacy were 18.1 minutes, 19.0 minutes, and 17.6 minutes, respectively. And 72.7 %, 81.3%, and 82.2% of patients could get the medicine within 20 minutes. Conclusion : The mean waiting time was markedly reduced with above mentioned processes which applied intradepartmently event hough with little cooperation from other department. Consequently, the complaints of patients were decreased with increasing the satisfaction degree. In conclusion, those suggestions were recommanded to improve the degree of satisfaction of patients.

• Korean Journal of Social Welfare
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• v.51
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• pp.157-182
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• 2002

This study attempts to identify the changes in social reactions to disabilities in general, and to research the contextual implication of these changes in social work practice in Korea. In the early years after the Industrial Revolution, disability was conceived as social unfitness and it was assumed that the cause and responsibility could be attributed to people with disabilities. But, in the midst and late 20th century, social responsibility for people with disabilities was argued and generally accepted. As the results of these changes, conceptual models explaining disabilities have changed gradually; there has been a transition, so called, from individual model to social model. In a similar vein, WHO has refined the definition and classification of disability. Related to these changes, social welfare service paradigm for people with disabilities has shifted. This paradigm shift can be explained with the perspective of strength approach, empowerment approach, case management and independent living model. In Korea, 1998 Act on welfare for people with disabilities meant that social service for the disabled were categorized with, namely, residential service, community rehabilitation service and vocational rehabilitation service. Recently, the extent of these services has been rapidly broadened. In these situation, this study researched to identify the implications on social work practice in the context of changes in social response, conceptual model, definition and also service paradigm. Such as the followings are enumerated for the implications: disabled person's participation in assessment process, development of assessment tools focusing on social and environmental perspectives, reinforcement of information service helping self-determination, supporting on formal and informal helping network, expanding self-help programs and, finally, a shift from displacement model to support model.

• 한국신재생에너지학회:학술대회논문집
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• 2010.11a
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• pp.111.1-111.1
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• 2010

This paper focuses on a systematic configuration of steam reforming fuel processor, particularly designed for small and medium sized hydrogen production application. In a typical integration of the fuel processor, there exist significant temperature gradients over the entire system which has negative effect on both catalyst life-time and system performance. Also, the volumetric inefficiency should be avoided to obtain the possible compactness for the commercial purpose. In the present work, the computational analysis will be performed to gain the fundamental insight on the transport phenomena and chemical reactions in the reformer consisting of preheating, steam reforming (SR), and water gas shift (WGS) reaction beds in the flow direction. Also, the fuel processing system includes a top-fired burner providing necessary thermal energy for endothermic catalytic reactor. A fully two-dimensional numerical modeling for a integrated fuel processing system is introduced for in-depth analysis of the heat and mass transport phenomena based on surface kinetics and catalytic process. In the model, water gas shift reaction and decomposition reaction were assumed to be at equilibrium. A kinetic model was developed and then computational results were compared with the experimental data available in the literature. Finally, the case study was done by considering the key parameters, i.e. steam to carbon (S/C) ratio and temperature. The computer-aided models developed in this study can be greatly utilized for the design of advanced fast-paced compact fuel processors research.

• Journal of Korean Academy of Nursing
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• v.47 no.4
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• pp.476-487
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• 2017

Purpose: This study aimed to examine the effects of cognitive behavior therapy for insomnia (CBT-I) based on the mobile social networking service (SNS) on dysfunctional beliefs and attitudes about sleep, sleep quality, daytime sleepiness, depression, and quality of life among rotatingshift nurses in a hospital in Korea. Methods: A nonequivalent control group pre-post test design was used. The participants included 55 nurses with rotating three-shift work (25 in the experimental group and 30 in the control group). For the experimental group, CBT-I using mobile SNS was provided once a week for 60 minutes over six weeks. Data were analyzed using descriptive statistics, $x^2-test$, independent samples t-test, and Mann-whitney U test with the SPSS 21.0 program. Results: In the homogeneity test of the general characteristics and study variables, there were no significant differences between the two groups. Nurses in the experimental group had significantly lower scores on dysfunctional beliefs and attitudes regarding sleep and sleepiness than nurses in the control group. Nurses in the experimental group had significantly higher scores on sleep quality and quality of life than nurses in the control group. Conclusion: These findings indicate that using the mobile SNS-based CBT-I is feasible and has significant and positive treatment-related effects on rotating-shift nurses' irrational thoughts and beliefs in association with sleep, sleep quality, daytime sleepiness, and quality of life. These contribute to expanding our knowledge of rotating-shift nurses' sleep issues and their preferences for intervention.

• Animal cells and systems
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• v.9 no.3
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• pp.153-160
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• 2005

Most living organisms exhibit the circadian rhythm in their physiology and behavior. Recent identification of several clock genes in mammals has led to the molecular understanding of how these components generate and maintain the circadian rhythm. Many reports have implicated the photic induction of either mPer1 or mPer2 in the hypothalamic region called the suprachiasmatic nucleus (SCN) to phase shift the brain clock. It is now established that peripheral tissues other than the brain also express these clock genes and that the clock machinery in these tissues work in a similar way to the SCN clock. To determine the role of the two canonical clock genes, mPer1 and mPer2, in the peripheral clock shift, stable HEK293EcR cell lines that can be induced and stably express these proteins were prepared. By regulating the expression of these proteins, it could be shown that induction of the clock genes, either mPer1 or mPer2 alone is not sufficient to cause clock phase shifting in these cells. Our real-time PCR analysis on these cells indicates that the induction of mPER proteins dampens the expression of the clock-specific transcription factor mBmal1. Altogether, our present data suggest that mPer1 and mPer2 may not function in clock shift or take part in differential roles on the peripheral circadian clock.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2008.11a
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• pp.122-122
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• 2008

Recently, Metal/Alumina/Silicon-Nitride/Silicon-Oxide/Silicon (MANOS) structures are one of the most attractive candidates to realize vertical scaling of high-density NAND flash memory [1]. However, as ANO layers are miniaturized, negative and positive bias temperature instability (NBTI/PBTI), such as the flat band voltage shift, ${\Delta}V_{FB}$, the interfacial trap density increase, ${\Delta}D_{it}$, the gate leakage current, ${\Delta}I_G$. and the retention characteristics, in MONOS capacitors, becomes an important issue in terms of reliability. It is well known that tunnel oxide degradation is a result of the oxide and interfacial traps generation during FN (Fowler-Nordheim) stress [2]. Because the bias temperature stress causes an increase of both interfacial-traps and fixed oxide charge could be a factor, witch can degrade device reliability during the program and erase operation. However, few studies on NBTI/PBTI have been conducted on improving the reliability of MONOS devices. In this work, we investigate the effect of post-annealing gas on bias temperature instability (BTI), such as the flat band voltage shift, ${\Delta}V_{FB}$, the interfacial trap density shift, ${\Delta}I_G$ retention characteristics, and the gate leakage current characteristics of MANOS capacitors. MANOS samples annealed at $950^{\circ}C$ for 30 s by a rapid thermal process were treated via additional annealing in a furnace, using annealing gases $N_2$ and $N_2-H_2$ (2 % hydrogen and 98 % nitrogen mixture gases) at $450^{\circ}C$ for 30 min. MANOS samples annealed in $N_2-H_2$ ambient had the lowest flat band voltage shift, ${\Delta}V_{FB}$ = 1.09/0.63 V at the program/erase state, and the good retention characteristics, 123/84 mV/decade at the program/erase state more than the sample annealed at $N_2$ ambient.

• Korean Chemical Engineering Research
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• v.49 no.1
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• pp.21-27
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• 2011

The comparison work was conducted for the methanol steam reforming among commercial Cu-based catalysts, viz. ICI-M45, which is for the methanol synthesis, MDC-3 and MDC-7, which are for the water-gas shift reaction. The catalytic activity for the water-gas shift reaction was also compared over three catalysts. Among them, MDC-7 showed the highest methanol conversion and formation rate of hydrogen and carbon dioxide at 473 K for the methanol steam reforming. To find out any promotional effect between ICI-M45 and MDC-7, three different packing methods with these two catalysts were examined. However, no synergistic effect was observed. The catalytic activity for watergas shift reaction decreased in the following order: MDC-7 > MDC-3 > ICI-M45. The highest activity of MDC-7 for the methanol steam reforming as well as the water-gas shift reaction can be due to its high surface area, copper dispersion, and an adequate Cu/Zn ratio.

• The Korean Nurse
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• v.33 no.5
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• pp.63-75
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• 1995

The need of oriental nursing role is recently increasing. The implication of this trend is enormous not only for the need of independent of independent oriental nursing intervention. Hence, this study was designed to describe the characteristics of oriental nursing activity and identify the meaning of nursing activity in oriental hospital. A total of 24 nurses were selected by convenience sampling from eight units at one oriental hospital. A total of 168 data were collected using minute-by-minute recording during nurse s work shift. The data were analyzed using nova and scheffe method as post-hoc test The results of this study are as follows; 1. the category of nursing activity in oriental hospital 74.4% of nursing activity was the patient-oriented nursing care. The nursing activity included others (18.28%), the function-oriented nursing care (7.07%), and staff-oriented care (0.2%). 29.1 % of the patient-oriented nursing care was the direct care, and 24. 5 % of the patient-oriented nursing care was the indirect care. There was a lack of patient education and the communication patient. 2. Nursing activity in oriental hospital by characteristics 1) Nursing activity by unit For patient-oriented nursing care, there was a statistically significant difference among 8 units. In the critical care unit, the patient-oriented nursing care was mostly performed. For function-oriented nursing care, there was statistically significant difference among 8 units. In the physical therapy unit, the function-oriented nursing care was mostly performed. 2) Nursing activity in oriental hospital For all kinds of nursing activity, there was a statistically significant difference between shifts. In night shift patient-oriented nursing care, function-oriented nursing care, and other kinds of nursing care was mostly performed. Patient-oriented nursing care included indirect care, treatment set management, and the breaktime. In day shift, staff-oriented nursing care was performed. 3) Nursing activity in oriental hospital For all kinds of nursing activity, there was not a statistically significant difference by day. The day has not impact on nursing activity. 3. the meaning of activity in oriental hospital The results of this study show that the patient-oriented care was vital check, input! output check, medication, bedsore prevention, nasogastric feeding, oral care, catheterization care, perinatal care, nursing care associated with acupuncture and moxacautery, observation (fever, sweating), heat and cold application communication with patent and family, and patient room management In conclusion, two issues associated with the findings of the research appeated to be involved in the difficulty of nursing activity in hospital. The first issue was the nursing care in oriental hospital provided by nurses who have a limited understading of the principles of oriental medicine. The second issue was the deficiency of systematic guideling for oriental nursing activity. The findings suggest the need to develop the systematic guideline for oriental nursing activity. The need of continuing education for nurses who work in the oriental hospital, and the need of nursing education including oriental nursing are critical.

• Journal of Nutrition and Health
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• v.36 no.3
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• pp.306-318
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• 2003

This study was performed to investigate the dietary attitudes and nutrient intakes of nurses. A total of 291 nurses working at hospitals in the Kyungnam area participated in the study. The general characteristics and dietary attitudes of the subjects were surveyed using a self-administered questionnaire, and nutrient intakes was examined using one-day 24-hour recall method. The results were as follows : 67.7 percent of the subjects were nurses, 32.3% were nursing assistants. Average age of the subjects was 26.9 years old, average nursing experience was 5.7 years, and 70.7% of the subjects graduated from junior college. The rates of shift work (45.4%) and non-shift work (54.6%) were similar, and 91.5% of subjects worked on a three-shift a day schedule. The average nutrition knowledge score was 14.3 $\pm$ 2.5 out of a possible 20 points. Most of the nurses had experienced dietary problems such as skipping meals and overeating. Sixty-eight point three percent of the nurses had breakfast less than 3 times a week, and the main reason for skipping meals was a lack of time. Most of the nurses (74.1%) didn't exercise regularly. The average score on dietary habits was 55.6 out of 100, and most of the subjects belonged to the‘fair’group in terms of dietary habits. Married nurses, and those over 31 years of age, scored significantly higher on dietary habits than unmarried nurses, and those under 25 years of age (p < 0.001), and the scores significantly increased with increasing age. Mean daily carbohydrate and fat intake was 231.5 $\pm$ 66.1 g, 41.1 $\pm$ 18.8 g, and cholesterol and crude fiber intake was 238.2 $\pm$ 184.6 mg, 5.2 $\pm$ 2.0 g. respectively. Compared with the recommended allowances, the energy (1560.0 $\pm$ 448.5 kcal), calcium (453.8 $\pm$ 222.3 mg) iron (10.6 $\pm$ 7.6 mg), vitamin A (658.5 $\pm$ 538.1 R.E) and vitamin B$_2$ (0.96 $\pm$ 0.5 mg) figures were below the Korean RDA, and the protein (65.9 $\pm$ 31.0 g), vitamin B, (1.14 $\pm$ 0.5 mg), vitamin C (143.2 $\pm$ 119.6 mg), niacin (14.4 $\pm$ 6.3 mg) and phosphorus (958.1 $\pm$ 352.1 mg) figures were above the Korean RDA. The average carbohydrate, protein, fat ratio of energy intake was 60：17：23. The intake ratio of Ca and P showed an unbalance of 1：2. The dietary habits had a positive correlation (p < 0.001) with nutrition intake except vitamin A and vitamin C. Therefore, In order to improve overall dietary behavior and nutritional status, systematic nutrition education programs should be developed.

• Journal of Yeungnam Medical Science
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• v.16 no.2
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• pp.357-363
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• 1999

Objectives: The purpose of this investigation was to study the health status of apartment guards and associated factors. Materials and Methods: This investigation was conducted for 1 month starting from August, 1997. Study population in this cross-sectional survey consisted of 182 guards of apartments located throughout the district of Taegu. Each subject completed a questionnaire about his general characteristics, health behaviors, job descriptions, subjective GIT symptoms and somatization and depression using Symptom Checklist-90-Reversion (SCL-90-R) by self administrated questionnaire and personal interview. Results: Study subjects had one or more GIT symptoms(53.3%), somatization symptoms(83.5%) and depression symptoms(79.7%). The mean scores of GIT, somatization and depression symptoms were not different among the age groups and based on marital status, respectively, but, significantly different by education level(p<0.05). The mean scores of GIT, somatization and depression symptoms were not different among the age group and based on marital status, respectively, but, significantly different by regular diet and by the subject's health status(p<0.05). The mean scores of GIT, somatization and depression symptoms were not different by duration of shift work, by job tenure and by the number of managed houses but, those of somatization and depression symptoms were significantly different by level of job satisfaction(p<0.05). Conclusion: The health statuses of guards at apartments were different from other shift workers because of healthy worker effects and characteristics of their jobs.