• Journal of the Korean Society of Food Culture
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• v.23 no.5
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• pp.556-562
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• 2008

The purpose of this study was to investigate the effect of cooking activities on the unbalanced dietary food habits of elementary school students and develop the effective cooking activity program for the improvement of unbalanced dietary behaviors as well as the food intake and menu acceptance. The subjects of this study were 256 elementary school students. The cooking activity group and control group were consisted of 128 students of $3^{rd}$ & $5^{th}$ grader each. Both cooking activity and the control group took the same 1-hour nutritional theory based class for 10 sessions. Only Cooking activity (CA) group took additional 10 sessions of 1-hour cooking class. Programs for cooking activity were developed and 10 cooking activity sessions were taken place for 4 months. The questionnairs were used to evaluate the effect of the cooking activities over the intake of food group, unbalanced dietary behavior, eating attitudes, menu acceptance before and after the completion of all the cooking activities. Cooking activities affect the unbalanced dietary behaviors and the intake of food groups. Fish, cereals, milk products, fruits, potatoes, vegetables were more eaten by CA group than control group. Eating attitudes and unbalanced dietary behaviors of CA group are also improved significantly than control group. From these results, it was concluded that cooking activities had the positive effect on the improvement of unbalanced dietary food habits over vegetables, cereals, fish, milk product and fruits as well as the unbalanced dietary behaviors of the elementary school children.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.34 no.4
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• pp.42-48
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• 2011

This paper proposes performance measurement method of quality small-group activity in business. This paper collects and analyzes quality circle activities data respect to tangible and intangible effect in national quality circles competitions festival. This paper proposes QPI (quality-circle performance index) based on Balanced Scorecard for quality small-group activity in quality improvement area. QPI is to measure the performance of quality improvement activities in the business firms. QPI is able to use widely in industries to provide a performance measure of quality small-group activity. In this paper, we propose the application method of QPl.

• 한국노년학
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• v.37 no.4
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• pp.813-833
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• 2017

The purpose of this study was to classify the results of previous studies on the cognitive function improvement program of the elderly into the cognitive impairment group and the normal group to compare the effect sizes of the groups using meta - analysis. Among the previous studies on cognitive function improvement programs reported in Korea for the last five years, 86 were selected and the effect sizes were summarized using meta-analysis. As a result of the study, the overall average effect size showed a large effect size in both groups. The effect sizes of the intervention types were high for the cognitive impairment group, and the exercise and cognitive-based interventions were similar for the normal group. The gender effect size was higher for the women with cognitive impairment group, and higher for the combined case with normal group. The effect sizes according to group size were higher for 20 persons in cognitive impairment group and higher for 21~40 persons in normal group. The total number of sessions in both groups was higher than 32 times, The number of sessions per week was 3 times for the cognitive impairment group, 4 to 6 times for the normal group. The duration of activity was 55~60 minutes in cognitive impairment group and 70~180 minutes in normal group as the number of sessions and activity time increased the effect size was higher in normal group. This study will be meaningful in that it provided basic data necessary for future program development by comparing and analyzing the effect sizes of the cognitive function improvement program type and the activity factors between the cognitive impairment group and the normal group.

• Preventive Nutrition and Food Science
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• v.8 no.1
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• pp.96-104
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• 2003

Ginger (Zingiber officinale Roscoe) is traditionally used as appetite enhancer, improver of the digestive system, antithusive, anti-cold, antipyretic, analgesic, and antiinflammation. In vitro evaluation using human lymphocyte cultures showed almost similar indication with those in in vivo mouse study, NK cell lysing activity was improved significantly. Proliferation activity of B and T cells, and CD3$^{＋}$ and CD3$^{＋}$CD4$^{＋}$T cell subset were better observed using oleoresin or gingerol and shogaol fractions. Although there were higher activities in gingerol, the improvement was almost equal to that by oleoresin. Shogaol did not show better improvement except at higher concentration. It could be concluded that treatment with single bioactive compound, such as gingerol, did not show significant effects compared to oleoresin, the crude extract. In human study, involving healthy male adult, the improvement of NK cell lysing activity was again demonstrated and even more apparent. The mechanism involved in the protection seemed to be through the antioxidant activity of gingerol. However, other mechanism underlying the improvement of NK cell lysing activity must be involved since this improvement seemed to be specifically toward NK cell activity. Since NK cells ave specific for the elimination of virus-infected cell and mutated cells, this positive effect on the immune system are very interesting. This work has also scientifically proved that the traditional beliefs that ginger had preventive effects on common cold appeared to be reasonable.

• Textile Coloration and Finishing
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• v.26 no.3
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• pp.181-186
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• 2014

This paper surveys improvement characteristics in muscle fatigue with bio-activity material imbedded fabric. For this purpose, the subjects wear the garment which is covered by bio-activity materials all over every day during 2 weeks of experimental period. After 2 weeks period, VAS(Visual Analogue Scale) index evaluation regarding muscle fatigue and pain has been conducted in comparison between before wearing and after so that we can evaluate the effect on muscle fatigue improvement. The effectiveness survey for testing products consists of improvement on krunkle, muscle fatigue and exercise capacity. As a result, 100% of test subject group completes a questionnaire with positive answer as above normal in every question. In addition the preference of testing products is researched in wearing comfort, activity and convenience. And it is marked above normal by 100% of test subject group as well. Moreover any kind of unusual skin reaction has not been detected in safety evaluation. Therefore this testing products is being judged as a beneficent product for improvement on muscle fatigue without any skin irritation.

• Journal of Korean Elementary Science Education
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• v.20 no.2
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• pp.281-291
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• 2001

The purpose of this study was to identify the effect of mind map activity on scientific attitude and science achievement in elementary school science. The subjects of this study were fifth-grade students selected from two classes in elementary school located in Seoul. The subjects were classified into two groups: One group is composed of thirty-eight students(experimental group) who were participated in mind map activity, and the other is composed of thirty-five students(control group) who were participated in traditional teaching situation. Pretest showed that there were no significant differences between experimental and control group in scientific attitude and science achievement. The results were as follows: First, the experimental group showed a significant improvement in the post-test science achievement compared to the control group. Second, the experimental group showed insignificant improvement in the post-test scientific attitude compared to the control group. Third, female students and mid-ranking group showed a significant improvement in the post-test science achievement. Fourth, in sex and academic ranking, experimental group did not show significant difference in the post-test scientific attitude. In conclusion, mind map activity was more effective than traditional teaching situation on science achievement. But mind map activity was less uneffective than traditional teaching situation on scientific attitude.

• Korean Journal of Pharmacognosy
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• v.52 no.1
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• pp.55-60
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• 2021

Belamcandae Rhizoma (BR), the rhizome of Belamcanda chinensis (L.) DC., possesses various biological properties such as anti-inflammatory activity, antioxidant activity and antimutagenic activity. However, there have been no studies on the anti-amnesic effect of BR. In this study, we assessed the improvement effect of BR extract on scopolamine-induced amnesia in mice. ICR mice were administrated with BR (50, 100 or 200 mg/kg, p.o.) and were subsequently injected of scopolamine (1 mg/kg, i.p.) 30 min before behavioral tasks (Y-maze, passive avoidance and Morris water maze tasks). To further assess the possible mechanisms of BR, the ex vivo acetylcholinesterase (AChE) activity was also evaluated. BR could ameliorate scopolamine-induced memory impairment and could regulate the cholinergic function by inhibiting the AChE activity. These data demonstrated that BR exert candidate extract against amnesia by restoring the cholinergic activity.

• Biomedical Science Letters
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• v.29 no.2
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• pp.88-94
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• 2023

In oriental medicine, the fruit of Actinidia polygama has long been used to alleviate the symptoms of gout, arthritis, and inflammation. In this study, it was to designed to analyze the antibacterial activity of A. polygama ethanol extract (APEE) against Streptococcus mutans, one of the major strains for dental caries, and Porphyromonas gingivalis, one of the critical strains for periodontal disease. The antibacterial activity of APEE was analyzed by disk diffusion, minimum inhibitory concentration (MIC), and minimum bactericidal concentration (MBC) assays. In addition, it was also analyzed the inhibitory effect of APEE on bacterial growth and biofilm formation against both oral pathogens. APEE exhibited its antibacterial effect through the inhibited bacterial diffusion as well as low concentration of MIC and MBC. In addition, APEE significantly inhibited not only bacterial growth but also biofilm formation in a dose-dependent manner. Consequently, APEE showed potent antibacterial activity against both S. mutans and P. gingivalis, which indicates that APEE might be used as a potential antibacterial material for the improvement of oral healthcare.

• The Korean Journal of Community Living Science
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• v.28 no.4
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• pp.625-640
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• 2017

The purpose of this study was to identify the effect of family support and participation in activities on the improvement in interpersonal relationships perceived by rural multicultural and non-multicultural household adolescents and compare the results with the perspective of Sullivan and Bowlby. For this purpose, the data of 403 persons from multicultural households and 348 persons from non-multicultural households were analyzed and several conclusions were drawn. Firstly, the family support variable had the greatest effect on the improvement in interpersonal relationships in both the rural multicultural and non-multicultural household adolescents. Secondly, the number of activities experienced at home significantly affected the improvement in interpersonal relationships in both types of adolescent. The effects of age, number of friends, and number of traditional activities on the improvement in interpersonal relationships differed for each type of household adolescent. And to conclude, the significant factors affecting the interpersonal relationships of the rural adolescents were their family and parents. Therefore, this study supports Bowlby's perspective on adolescents' interpersonal relationships. Based on the results, this study proposed plans to improve the interpersonal relationships of rural adolescents through family support and activity participation. Also, a plan for follow-up studies was suggested.

• The Korea Journal of Herbology
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• v.31 no.4
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• pp.43-51
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• 2016

Objectives : This study was conducted with objectives of comparatively investigating effects of original Kyungokgo and Iksuyongjingo plus Sparassis crispa which is gamibang of Kyungokgo on antioxidant improvement, immunity improvement, and sensory evaluation.Methods : Total phenol and DPPH scavenging activity were measured to determine antioxidant improvement of original Kyungokgo and Iksuyongjingo plus Sparassis crispa. While, blood and serum study were conducted and effect on the cytokines were observed from the immunosuppressed rat induced by methotrexate (MTX). Control group was administered with a drinking water, Kyungokgo group was administered with a original Kyungokgo 200 mg/kg, and Iksuyongjingo plus Sparassis crispa group was administered with a Iksuyongjingo plus Sparassis crispa 200 mg/kg for 20 days. Further, intensity and preference evaluation were performed as sensory evaluation.Results : It was observed that Iksuyongjingo plus Sparassis crispa significantly increased total phenol and DPPH scavenging activity, proving that these can improve antioxidant activities. In the immunosuppressed rat, Iksuyongjingo plus Sparassis crispa significantly decreased IL-2 level, significantly increased Il-10 level, and significantly increased neutrophils, RBC, HGB, and HCT levels, indicating that it is effective in increasing immunity. Further, Iksuyongjingo plus Sparassis crispa significantly improved intensity and preference in the sensory evaluation.Conclusions : From the above results, it is concluded that Iksuyongjingo plus Sparassis crispa which is gamibang of Kyungokgo can act effectively on improving antioxidant activity and immunity, and can attribute convenient intake by improving diet preference.