• Journal of the Korean Professional Engineers Association
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• v.25 no.4
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• pp.52-58
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• 1992

In korea, since November 1982 these two small group activity (QC circle convension and Factory Saemaul activity small group convension) has been united, many problems have been disclosed that are aganist the basic principle more or less. Worker's small group within their working place to improve the surroundings creatively. In practice, however, many group are so typical and impetuous of the material effect that it is worried to be inclined to outform rather than contents. Effective small group activities are presumed to be successful only with labour management cooperation on the basis of human-orient management philosophy. The small group activities are also prevalent in service sector. More derivative methods have been developed and more members are willingly participation in training programs. The small group which is basically a horizontal organization unit, promptes communication within the whole organization, In consideration of social circumstances and traditions, the flexible model of the small group activities suitable to the corporate environment, will contribute to industrial development.

• Proceedings of the Korea Database Society Conference
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• 2008.05a
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• pp.307-320
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• 2008

This study finds out the influence factor of knowledge sharing based on the viewpoint of the relationship central knowledge and inquires out the relationship between knowledge sharing and a knowledge activity performance. The related factor is set trust, openness communication and cooperation as independent variables. And the knowledge activity performance is set knowledge quality and user knowledge satisfaction as dependent variables which are influenced by knowledge sharing. This study proposes that to improve the organizational performance needs to manage not only knowledge, but also the users and surroundings.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.11
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• pp.5060-5065
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• 2012

The purpose of this study was to report the incidence of drowning accident in order to prevent and decrease the accidents of drowning. Data were obtained on all accidents of drowning accidents occurred from January to December 2007 were identified by using the Emergency Activity Daily Report Data from the National Emergency Management Agency (NEMA). The age, weather, date, location, time and case of the drowning accident were examined. The Chi-square test was used to compare each group. All comparisons were made at the p<0.05 level of significance. The result show that the age of drowning accidents for victims aged 20-29 was 27.9%, and for victims aged 30-39 years, 18.7%. In reguard to the age group, drowning accidents during recreational aquatic activity was age 20-39; 51(44.8%). In reguard to the locations, the number of drowning accidents in a lake or reservoir during recreational aquatic activity was 62(53.4%). The number of drowning accidents in a lake or reservoir during etc was 51(58%). In reguard to the days, the number of drowning accidents on Saturday during recreational aquatic activity was 30(25.8%), on Sunday 32(27.6%). The weather of drowning accidents during recreational aquatic activity was sunny 60(51.8%), rainy 40(34.4%), cloudy 16(13.8%). The season of drowning accidents during recreational aquatic activity was summer 53(45.7%). In reguard to season, two groups are significantly different. Drowning is a leading cause of injury related accidents. Understanding the characteristics of drowning is the first step to developing prevention strategies that may be beneficial for people of all ages and under nearly all circumstances are increased swimming ability, lifeguard staffing, providing life jackets, and public education activities.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.6
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• pp.106-112
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• 2016

The purpose of this study was to examine the differences in the direct medical expenditure of community residents according to their physical activity level. The quota sampling method was used to select samples from a youth community center, senior center, community cultural center, and community recreational sports center in G city in Gyeongbuk-do. Of the 773 questionnaires distributed, 716 were completed. The questionnaires consisted of the demographic characteristics, regular exercise and physical activity levels, health status and medical costs. While the beneficial effect of regular exercise and physical activity on dental costs was not (significant), its effect on the costs of visiting hospital services was (significant). The mean differences in the total monthly direct medical expenditures on outpatient services and medicine for those with very high, high, moderate, low, and very low levels of physical activity were 7,500, 26,299, 47,517, 9,314, and 9,9978 won, respectively. The result of this study supported the findings of previous studies that regular exercise and physical activity. are not associated with the reduction of medical expenditure.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.6
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• pp.129-135
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• 2017

This study examined the antioxidant activity of the water extract from graviola leaves to develop a harmless and highly stable natural antioxidant. The total polyphenol content, total flavonoid content, DPPH radical scavenging activity, and MTT assay activity were measured. As a result, 62.3 g of the water extract from graviola leaves was obtained at $98^{\circ}C$ using 300 g of graviola leaf powder. The total polyphenol content was $291.97+2.39{\mu}g/mL$ and the total flavnoid content was $161{\pm}7.85{\mu}g/mL$ in a 1 mg/mL water extract from graviola leaves. The DPPH radical scavenging activity showed 51.6%, 67.8%, 79%, 82.4% and 83.9% at concentrations of 1, 2.5, 5, 10 and 15 mg/mL. This shows concentration-dependent scavenging activity and significant antioxidant activity. As a result of measuring the toxicity about HDF cells, a HDF cell survival rate of 100% was observed at a 150 mg /mL concentration, which was the same as that of the control group and a higher cell survival rate at a lower concentration. In conclusion, the graviola leaf extract can be developed as a material of food or cosmetics containing natural antioxidants.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.10
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• pp.231-242
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• 2018

This study was performed to determine the effects on psychological and physiological variables of Horticulture Activity Caring Program for major company white-collar workers. Fifty three White-collar Workers participated in study. They were assigned to two groups (experimental group and control group) in random order. Random order is used Excel 2010 program RAND function of Microsoft. During the eight-week trial, the experimental group was treated with Horticulture Activity Caring Program weekly for 90 minute per session. The control group wasn't treated. Measurements of variables (stress, depression, blood glucose, total cholesterol, HDL-C, and LDL-C) were performed at weeks 0 and 8 for all participant. Changes in variables were calculated from baseline to trial completion. The data were collected from July to September 2014. SPSS 21.0 was used for the statistical analysis. : Horticulture Activity Caring Program had positive effects on depression (z=-4.57, p< .000). Conclusion of the study suggest the Horticulture Activity Caring Program may have positive effects on improving depression. We expect that the Horticulture Activity Caring Program will become a complementary and alternative therapy of mental health promotion for the white collar workers.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.3
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• pp.513-517
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• 2017

The purpose of this study was to investigate the antioxidative and anti-inflammatory activities of ethanol extracts from Perilla frutescens var. acuta by varying the concentration of ethanol at 30, 50, 70, and 90% to utilize the effective extract of Perilla frutescens as a cosmetic and pharmaceutical material. In the DPPH antioxidant activity test, the 70% ethanol extract showed the highest activity with an IC50 of 680.98ppm. ABTS showed a high activity in the 50% ethanol extract and the 70% ethanol extract with an IC50 of 646.94 and 661.94 ppm, respectively. Each ethanol extract showed antioxidant activity at a certain concentration (100-10000 ppm), but did not show any significant relationship with the ethanol extract concentration. In RAW 264.7 macrophages induced by LPS, each of the ethanol extracts showed reduced NO production in all extracts, and more than 50% ethanol extract (10000ppm) inhibited nitric oxide formation by 85% or more. In particular, the 70% ethanol extract showed 90% or more nitric oxide production inhibition. In addition, the MTT assay showed no cytotoxicity at all concentrations (1250-10000 ppm) of each extract. In this study, the ethanol extract of Perilla frutescens var. acuta has antioxidant activity and anti-inflammatory activity that is dependent on the concentration at each extraction concentration.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.5
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• pp.355-365
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• 2017

This study investigatedwhether occupational therapeutic craft activity improves cognitive function and hand function in patients with acute stroke, with the hope of providing clinically useful results for further studies. From March 2016 to November 2016, thirty acute patients with stroke at A general hospital and B rehabilitation hospital in Seoul and Gyeonggi-do, Korea were enrolled and randomly divided into two groups. One group was treated with occupational therapeutic craft activity,and the other general exercise. The subjects performed each activity for 30 minutestwice weekly, for four weeks. To test the effect of intervention, hand function was tested with the Box & Block Test and the Jebsen-Taylor Hand Function Test.Cognitive function measures were the NCSE and Trail-Making Test. Over the four weeks of treatment activities, in the occupational therapeutic craft activity group, hand function measures(p<.05) increased significantly,as did cognitive function measures(p<.05). This study shows that occupational therapeutic craft activity improves hand function and cognitive function effectively in patients with acute stroke. Occupational therapeutic craft activity programscan be based on this study to prepare intervention programs for further studies with acute stroke patients.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.4
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• pp.342-352
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• 2018

This study was conducted to evaluate the effects of physical activity practice rates and knowledge related to cardiocerebrovascular disease prevention on the health behavior of middle aged women. Data were collected from Oct to Nov 2017 from 142 middle-aged women living in 24 Eup, Myeon, and Dong areas in North Gyeongsangbuk-do Province using a structured questionnaire. The obtained data were analyzed using descriptive statistics, t-tests, ANOVA, Pearson's correlation, and stepwise multiple regression analysis. The major factors influencing health behavior were found to be alcohol consumption (${\beta}=0.15$, p=0.009), diet (${\beta}=0.16$, p=0.003), vigorous intensity (${\beta}=0.14$, p=0.011), marriage (${\beta}=0.19$, p<0.001), interest in one's own health (${\beta}=0.23$, p<0.001), and health recognition (ill: ${\beta}=0.31$, p<0.001). Alcohol consumption and diet were factors of cardiocerebrovascular knowledge, vigorous intensity was a factor of physical activity practice rate, marriage and interest in one's own health were factors of general characteristics, and health recognition was a factor in health-related characteristics. Health-promotion activity was positively correlated with knowledge regarding cardiocerebrovascular disease prevention (r=0.41, p<0.001) and physical activity practice rate (r=0.44, p<0.001). It will be necessary to develop and apply practical intervention programs based on disease prevention knowledge and physical activity to enhance the health behavior of middle aged women.

• Korean Security Journal
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• no.14
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• pp.389-412
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• 2007

This study's purpose is to present the improvement of effectiveness of security activity for international conference which can be held hereafter. On the basis of security activity problems originating in APEC that had been held in Pusan in 2005. I made up questions three times to on the members of the police, military, fire figher and Busan city civil servants who had participated in Busan APEC and recognition of possible problem and possibility of improvement on each item of questions was analyzed by Delphi Method. Also interviews with 4 security experts selected from each security agency were conducted to present improvement in each part of problem. The study result is as follows; First, the satisfactory cooperation between security agencies and self-governing body is needed for the basis of security activity in preparatory stage. Second, examining thoroughly security activity by function in activity stage. Third, giving full play to their genius by close cooperation between security agencies and self-governing body in enfourcement stage. Fourth, provision for events after this on the basis of effective estimation system in evaluation stage.