• Food Science and Preservation
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• v.16 no.3
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• pp.327-332
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• 2009

Kiwifruits conventionally grown (CG), grown with low levels of chemicals (LCG), and organically grown (OG), were kept in cold storage for 24 weeks. Firmness gradually decreased with increasing storage time, regardless of cultivation mode, and the rate of softening was slightly higher in OG than in CG or LCG fruit. Neither dry matter level nor sensory values differed with varying types of cultivation. Soluble solid content increased with storage time, whereas acidity decreased in all fruit. Reducing sugar content increased notably until 12 weeks of storage, whereas starch content significantly decreased. The rate of OG fruit decay abruptly increased mid-storage and reached 35% 24 weeks after storage. Most fruit decayed due to infection with Botritis cinerea, regardless of cultivation type. Respiration and ethylene content peaked at mid-storage and were both slightly higher in OG fruit than in CG or LCG fruit. The shelf life of kiwifruit was reduced in OG fruit by increased fruit decay and softening during storage.

• Journal of International Academy of Physical Therapy Research
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• v.2 no.2
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• pp.329-338
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• 2011

The purpose of this study is to examine the effect of stabilization, resistance exercise, and combined exercise for lumbar on balance and walking ability of elderly. This study selected 22 subjects of over 65 years old elderly women who satisfy the study condition from A, B and C Senior Citizen's Center, in Daegu. The subjects were divided into groups; 7 for resistance exercise group, 8 for stabilization exercise group, and 7 for combined exercise group(resistance and stabilization exercise). The exercises were conducted for 60min a day, three times a week for 12 weeks. Balance and walking ability were checked before the exercise, 6 weeks later, and 12 weeks later. First, all lumbar muscle strengthening exercises were effective for static balance which changed according to exercising period. In dynamic balance, the resistance exercise group showed significant improvement in sit to stand. Stabilization exercise group showed significant improvement in all factors. The combined exercise group showed significant improvement in sit to stand and timed up and go. There was no difference between the exercise types. Second, the resistance exercise group showed significant change in Cadence which changed according to exercising period. The combined exercise group showed significant improvement in all factors. Between the exercise types, combined exercise was a bit more effective than resistance exercise. According to the result of 12 weeks of lumbar muscle exercise, combined exercise is considered to be the most effective exercise to prevent fall as it helps balance and walking ability slightly more than other exercises. Therefore, this study can understand the risk factors for fall accidents that frequently occur among elderly and adopt the combined exercise to prevent fall which in turn will prevent secondary problems occur from fall accidents and improve quality of life of elderly.

• Korean Business Review
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• v.19 no.1
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• pp.35-51
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• 2006

Airline industry which is depressed owing to terror attack on September 11 and Iraq War in early 21 century through high fuel cost and continuous recession in the second half of 90's is gradually recovering from the year of 2004. So demand of airline industry is rising step by step and investment of airlines toward customer service is also going up. Recently some mega carriers in head customer service in-flight internet service. In addition, so do domestic airlines and others ant to be backward. Many Study on usage attitude toward internet have been argued continuously as a result of everyday life using internet. Although there were survey for the revenue perspective of the firm, study on the side of the consumer is so rare. This study used the model of DEA -conjoint what users of the in-flight internet service now attitude and preference important factors to use. As a result, factors chosen are method to charge, service speed of internet, quality of contents provided and ease of approach toward information. This study presents airlines supplying in-flight internet service now to differentiation strategy for each segment.

• Journal of the Korean Association of Geographic Information Studies
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• v.9 no.2
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• pp.11-19
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• 2006

Sewerage is the system that improves the quality of human life and prevents many disasters such as floods. However the investigators in Korea only have been concerned about the sewer system, so the sewage treatment plant stays in the basic level like mapping. For example, only one attribute can be recognized in the linear object. Because of this limitation, it makes difficult to manage the linear attribute regarding to the sewage pipe plan. And it is impossible to control a partial (point type, line type) attribute changes of the linear object. We will therefore present the applicable method for the attribute changes of the linear object like the sewage pipe plans. For this reason, this paper is designed on the basis of Dynamic Segmentation(DS). DS has the advantage of giving the attribute value to the exact place in the linear object. As a result of using DS, the variety environment changes around the sewage pipes are applied to the building sewerage data. This also makes it possible to get a precise estimation for the maximum dirty water amount.

• Korean Journal of Agricultural Science
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• v.32 no.2
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• pp.223-231
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• 2005

In order to know the residual pattern of pesticides and predict to the degradation period until below MRL, we experimented diazinon, iprodinon and chlorfenapyr for shallot. They were the most detected pesticide in shallot by NAQS (National Agricultural product Quality management Service) survey. In this experiment, we sprayed those pesticides 15days before harvest and analyzed 0, 1, 2, 3, 5, 7, 10, 14 day sample to establish logical equation and to calculate $DT_{50}$. During the cultivating period, the residue amount of diazinon was changed from 1.02 mg/kg (0 day) to 0.01 mg/kg (14 day), $DT_{50}$ was 2.19 days, and iprodione was changed from 1.45 mg/kg (0 day) to 0.14 mg/kg (14 day), $DT_{50}$ was 4.15 days, and chlorfenapyr was changed from 1.5 mg/kg (0 day) to 0.01 mg/kg (14 day), $DT_{50}$ was 1.97 days. The $DT_{50}$ of double amount in those pesticides, diazinon was 2.24 days, iprodione was 4.82 days, and chlorfenapyr was 2.24 days, respectively.

• Research in Community and Public Health Nursing
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• v.21 no.1
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• pp.118-127
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• 2010

Purpose: The purpose of this study was to evaluate the effects of a Tai-Chi exercise program on subjective health and physiological function index. Methods: This study was designed as non-equivalent control group pretestposttest research. Eighteen women in each group completed the posttest with an attendance rate of 78.3 % after 12 weeks. The Tai Chi exercise program was provided two times a week over three months for the experimental group, but no program for the control group. A questionnaire was used for subjective health index, which consisted of Korean-WOMAC Index for joint stiffness, K-HAQ for physical disability, EQ-5D for quality of life and perceived health status, and CES-D for depression. To measure the effect on the physiological function index, femoral muscle strength, shoulder joint and back flexibility were measured. Results: All variables except left anterior femoral muscle strength had significant homogeneity between the two groups. There were statistically significant differences between the experimental group and the control group in joint stiffness (t=-2.165, p=.03), physical disability (t=-2.231, p=.038), EQ-5D index (t=3.783, p=.001), perceived health status (t=-2.349, p=.025) and femoral posterior muscle strength (t=2.487, p=.038). Conclusion: The Tai-Chi exercise program was beneficial for women with arthritis in rural communities.

• Journal of the Korea Convergence Society
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• v.8 no.10
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• pp.257-271
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• 2017

In this study, phenomenological methodology was used to understand the experience of family management style in mothers who have children with atopic dermatitis. For study methods, in-depth interview was conducted on 9 mothers residing in Seoul and the approach from phenomenological methodology by Colaizzi was used. As a result, 69 significant statements were deduced as well as 21 themes, 10 theme clusters, and 4 categories. These main categories include experiences of accepting atopic dermatitis as a reality, family management style for overcoming atopic dermatitis, reality of facing chronic fatigue, and hope and expectation for the child's health. Our study show that the intervention for improving family management style regarding atopic dermatitis is required including the enhancement of the mothers' quality of life and the recovery of family relationship.

• Journal of Environmental Policy
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• v.14 no.1
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• pp.113-134
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• 2015

In new housing demand, proportion of occupied multi-housing is 89.9% (statistics from 2013). In this way, with many generations living together, apartment noise disputes between the neighbors are continuously rising. The apartment noise problem in Korea is at a very serious level worldwide (about 88% of the population is experiencing stress due to apartment noise). On the other hand, the government has strengthened the regulations (such as the thickness of the floor and floor impact sound reduction performance, etc.) and promoted a resolution of its own for each multi-housing estates for mediating disputes on apartment noise. However, such physical regulations and passive management policies still presents a limit to the dispute mitigation of apartment noise. Also, in order to improve the quality of life in living spaces, policy on health effects of apartment noise should be provided. Therefore, we investigated a case study of the noise exposure-human body reaction to analyze the effect of noise on health. On the basis of this, the health effects according to the exposure period of apartment noise were considered.

• The Journal of Internal Korean Medicine
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• v.41 no.2
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• pp.111-121
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• 2020

Objectives: In 2019, we conducted a 12-week public health promotion program on the use of Korean medical treatments for elderly people who are at potential risk for stroke. A significant improvement effect was obtained through the program. The objective of this study was to report the results of this public health promotion program. Methods: Fifty people participated in the program. The participants were received herbal medicine and acupuncture treatments for stroke prevention for 12 weeks. Systolic blood pressure, diastolic blood pressure, blood sugar, weight, and body fat were evaluated twice. A questionnaire was used to assess the European Quality of Life-5 Dimensions (EQ-5D) score, the stroke danger signs, the recognition of stroke signs, and treatment satisfaction. Results: During the 12-week Korean medical treatment program, systolic blood pressure was significantly decreased by 119.40±19.32 mmHg, diastolic blood pressure was decreased by 79.80±8.92 mmHg, and weight was decreased by 58.24±9.70 Kg. The EQ-5D score was increased by 13.82±1.2 and the stroke danger signs score was increased by 26.76±3.59. Sex and EQ-5D score, stroke danger signs score, weight, and body fat were correlated. Age and weight were correlated. Conclusions: For elderly people with the potential risk for stroke, the 12-week Korean medical treatment program was effective and their satisfaction with the treatment was high. This study has significance because this is an unusual report in Korea on the effect of a Korean medical treatment program for stroke using a Korean medicine public health promotion.

• Food Science of Animal Resources
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• v.31 no.4
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• pp.617-623
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• 2011

Ozone is a strong oxidant and potent disinfecting agent. In this study, volatile basic nitrogen, thiobarbituric acid reactive substances, acid value and pH all of which are quality indicators in meat products, were evaluated. The meat was treated with the ozonated water (0.2 ppm) for 0, 5, 10, 30, and 60 min and then stored at $5^{\circ}C$ for 24 d. The volatile basic nitrogen content of meat was 22.40 mg% after 9 d of storage and 23.24 mg% at 15 d of storage with ozonated water (0.2 ppm) treatment. During 24 d of storage, the pH, thiobarbituric acid reactive substances, and acid value were decreased when subjected to ozonated water treatment. These results suggested that the ozonated water treatment effectively improved the chemical properties and food safety.