• 기본간호학회지
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• 제18권1호
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• pp.37-45
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• 2011

Purpose: The purpose of this study was to estimate the effects of an infection control program on the Clonorchis sinensis (CS) infection ratio, CS-related knowledge and health behavior of people living near the Geum River. Method: A one-group pretest-posttest design was used with 102 participants. For 12 months the participants were provided with promotion announcements, health education, counseling, and medication. Outcome variables measured were the CS infection ratio by stool examination, CS-related knowledge and health behavior from self-report questionnaires. The pre intervention data were collected from January to February 2008 and the post intervention data during the same period in 2009. Collected data were analyzed using descriptive statistics, generalized estimating equation analysis, and paired t-test with SPSS for Windows version 15.0. Results: In the pre test 21 of the 102 participants showed infection with CS for the first time. In the post test 9 were newly infected with CS, and one was re-infected. The CS-related knowledge was significantly improved after the infection control program (p<0.05). The CS-related health behaviors did not improve. Conclusion: These results showed that an infection control program is effective in decreasing CS infection ratio and improving CS-related knowledge of people living near the river.

• 한국태양에너지학회 논문집
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• 제38권3호
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• pp.29-36
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• 2018

The goal of this study is to retrofit the windows of residential buildings and to activate the green remodeling by verifying energy saving and indoor thermal environment. As a result of analysis of the energy saving effect of 458 units window retrofits, it was possible to reduce the energy requirement by 48.20% ~ 54.97%. According to the improvement on indoor environment, it was possible to operate by reducing heating temperature and supply time. The actual gas consumption of the heating period was reduced by 25% compared with that of the window retarder to save 28,968 thousand won of heating energy cost. Resident's satisfaction surveys were conducted one year after window retrofit. More than 80% of the respondents answered that they satisfied the improvement on window performance, indoor thermal environment and indoor sound environment. As a result, we verified the energy saving effect and the improvement on the indoor environment through window retrofits.

• 한국자원식물학회지
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• 제31권4호
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• pp.342-354
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• 2018

Suaeda japonica is a halophytic plant that lives in mudflat at intertidal zone of western and southern coastal areas of Korea. The seawater-living plants showed a purple color during their whole life. In contrast, freshwater-living plants displayed a green color in leaves. When seawater-living plants were transferred to potting soil, the purple color was gradually changed to green in the leaves. The extracted purple pigment compound exhibited typical characteristics of betacyanin that were represented by water solubility, pH- and temperature-dependent color changes, sensitivity to light, UV-Vis spectra, and gel electrophoretic migration pattern. The LC-MS analysis of the extracted pigment compound showed the presence of two major protonated molecular ions ($[M+H]^+$) at m/z 651.1 and m/z 827.1. Antioxidant activity of the pigment compound was determined using stable free radical DPPH assay. It was found to have an antioxidant activity that is linearly increased in proportion to the reaction time for up to 30 min, and the activity was comparable to that of control BHA at 9.0 mg/ml. The anticancer activity against several tumor cell lines was also examined following the MTT assay. The significant growth inhibitory effect was observed on two tumor cell lines, SW-156 (human kidney carcinoma) and HEC-1B (human endometrial adenocarcinoma). Probably, the pigment compound may function as an osmolyte to uphold halotolerant physiological processes in saline environment.

• Journal of Species Research
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• 제8권3호
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• pp.259-267
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• 2019

Five free-living nematode species belonging to the order of Rhabditida are described for the first time in Korea. Two unrecorded species of Rhabditidae, Cruznema tripartitum (Linston, 1906) Zullini, 1982, and Poikilolaimus oxycerca de Man, 1895, and one species of Peloderidae, Pelodera strongyloides Schneider, 1860, were collected in Korea. C. tripartitum has nine pairs of genital papillae arranged in 2+2+1+4 differently from similar species of C. scarabaeum which has ten genital papillae arranged in 2+1+4+3. Poikilolaimus oxycerca has shorter tail (shorter than anal body diameter) compared to similar species of P. regenfussi which has longer tail(longer than anal body diameter). Pelodera strongyloides has shorter tail(1-1.5 times anal body diameters long) than P. punctata (4 anal body diameters long). Two unrecorded species of Panagrolaimidae, Panagrolaimus apicatus Schuurmans Stekhoven & Teunissen, 1938 and Panagrolaimus rigidus (Schneider, 1866) Thorne, 1937 were collected in Korea. P. apicatus has rounded and lower lip compared to similar species, P. margaretae Massey, 1964 which has finely pointed lip. P. rigidus has slender tail and lips rounded and flat barely separated when compared to similar species, P. subelongatus(Cobb, 1914) Thorne, 1937 which has plumper tail and lips are well separated.

• Journal of the Korean Wood Science and Technology
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• 제50권6호
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• pp.375-391
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• 2022

Improving public awareness of wood is crucial for expanding the use of wood and establishing a wood culture. In this study, the environment and trends of the public's wood utilization were analyzed using a questionnaire survey and online text mining at a time when eco-friendly practices are gaining popularity. As a result of reducing climatic and environmental concerns and its positive physical and psychological effects, the use of wood is predicted to rise in areas intimately connected to everyday living, such as wood furniture, wooden structures, and interior materials. Nonetheless, there was a negative awareness that wood was expensive, difficult to maintain, and associated with deforestation. The correlations between wood-related search terms on major Korean portal sites were analyzed and categorized into five groups: Wooden architecture, cultural education, woodworking, wood industry, and wood policy. As a building material, wood was seen as more traditional and friendly than reinforced concrete and stone. Eighty-six percent of respondents expected to utilize wood as a building material in the future, regardless of whether the wood is domestically produced or imported. Sixty-five percent responded favorably about the effects of wood on the health of wooden home inhabitants. It is believed that both active publicity and quantifiable value analysis of human and environmental friendliness are required to increase pro-environment awareness of wood utilization.

• 한국조명전기설비학회지:조명전기설비
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• 제11권5호
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• pp.37-43
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• 1997

본 연구는 거실조명환경을 시계열적으로 분석하기 위하여 1985년, 1991년, 1996년의 조사결과를 고찰한 것이다. 그 결과, 평균조도가 증가되기는 하였으나 아직도 충분한 밝기를 확보하지 못하고 있음이 밝혀졌다. 그리고 조명환경이 향상되었음에도 불구하고 거주자의 의식 및 평가는 그리 높지 않았다.

• 한국지역사회생활과학회지
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• 제15권3호
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• pp.21-28
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• 2004

Marketing of traditional doenjang (a kind of fermented soybean product) is now focusing on its health advantages, being proven to have anti-viral, anti-cancer and anti-oxidant effects. The purpose of this study is to investigate the consumption patterns of traditional doenjang in the households managed by different generations of women living in Gyeonggi area. Six hundred housewives answered the questionnaire. Statistical analyses were performed on 590 subjects using SAS (ver 8.1). Chi-square tests and General Linear Models were used. The age distribution of housewives was as follows: 42.9% were in their 30s; 40.9% were in their 40s; and 16.2% were in their 50s. 57.5% of subjects graduated with high school education while 72.8% of subjects did housework only. Overall, 47.2%, prepared their doenjang themselves, while the remainder purchased it or received it from relatives. This percentage differed however according to age group, as self-preparation of doenjang was found in only 22% of housewives in their 30s, but increased to 83% of subjects in their 50s. 53.4% of subjects had their doenjang donated to them by relatives, compared with only 3.1 % of subjects in their 50s. Most of dishes using doenjang were soups and stews. Those housewives in their 50s made significantly higher use of doenjang in soup, wrapping vegetables (ssamjang), seasoning, and flat cake (jangttok). Doenjang dishes were prepared for the husband in the family 59.2% of the time, followed by housewives 15.4% of the time. Annual consumption of doenjang was 5.1kg. and Kanjang was 4.4L per household; there was no significant difference between the age groups respecting annual consumption. From such results, we may assume a decrease in home-made doenjang among younger generations and an increase in the amount of purchased doenjang. We can predict an increased need for doenjang of better quality. Also the development of new products such as ready-to-eat or fast food variants would better serve the trend towards convenience.

• 대한지역사회영양학회지
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• 제4권3호
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• pp.366-374
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• 1999

The purpose of this study was to investigate the change in food habits of girl students 1985 and 1998. A similar study had been conducted in 1985 and this study was carried in May, 1998 using the questionnaires. The subjects were 746 female students in middle school, high school and university students living in Jeonbuk region. The average score of food habit was $4.11{\pm}1.63$ out of a possible 10. This averge is lower than the 4.91 score in 1985, especially the score of university students lowered from 4.80 points to $3.52{\pm}1.58$ points. The correlation coefficient between the score of food habit and standard of living, utilizing increase as compared with the 54.9% in 1985. The most preferred side-dish changed from fried food to Kimchi. The preference of snacks was not changed. Eating bread increased at breakfast but eating noodles increased at lunch. University students' lunch basket preparation ratio decreased from 32.6% to 3.3%, so they had more noodles at refectory than lunch basket. The reason for skipping breakfast did not changes, but skipping lunch changed from annoyance due to lunch basket preparation to lack of time and no appetite. Skipping supper was changed from missing time to weight control. Having supper at home decreased from 96.6% to 75.9%. Substitution food on no preparation of lunch basket was changed from bread to noodles. The preference for biscuits and snack did not changes but fewer students preftered bread and fried food. In order to improve the nutritional status of the girl students, they must establish good food habits, especially by eating 3 regular meals per day and balancing their diet they should also be notified that severe weight control is very harmful for health.

• 한국학교보건학회지
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• 제33권2호
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• pp.79-88
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• 2020

Purpose: The purpose of this study was to identify 14 years of trends in sexual intercourse and sex education experiences among Korean adolescents from 2006 to 2019, based on online data. Methods: The study was a secondary analysis using the raw data of the 2^nd (2006) through 15^th (2019) Youth Risk Behavior Web-based Survey. The data of 504,105 male adolescents and 473,053 female adolescents were used for the analysis. A complex-sample cross-analysis (Rao-Scott χ² test) was performed to identify differences in sexual intercourse, sex education experience, and contraception over time, and logistic regression was performed to identify factors affecting adolescent sexual intercourse. Results: Sexual intercourse was found to increase as the year progressed. More high school students had sexual experiences than middle school students. Students who had ever smoked or drunk were more likely to have had sexual intercourse than the ones who had not. Students living with relatives or living in boarding houses or dormitories showed a higher rate of sexual intercourse than those living with family members. Students who never received sex education also showed a high rate of sexual intercourse. Conclusion: It is significant to grasp the trends in sexual intercourse, sex education experience, and contraception among adolescents over time. Providing adolescents with healthy sex education is becoming more and more important every year and health-related education including sex education that meets the need of teenagers should be incorporated into the regular curriculum.

• 한국방재학회 논문집
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• 제10권3호
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• pp.85-90
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• 2010

본 연구에서는 우리나라 산림의 주요 분포 수종 가운데 참나무류의 대표 수종인 굴참나무의 생엽을 대상으로 월별(6월~10월) 연소특성을 고찰하였다. 함수율은 114%~155% 정도였으며, 10월의 생엽은 수분함유량과 무염착화온도가 가장 낮은 것으로 나타났다. 7월 생엽은 27s 정도의 가장 빠른 시간에 발염착화 되었으며, 9월의 생엽은 105s 정도로 가장 오랜 시간동안 화염이 지속되고 총열방출량도 가장 높은 것으로 나타났다. 총열방출량과 총연기방출량은 모두 월별로 차이를 보였는데 6월부터 10월까지 점차 증가하는 경향을 나타냈다. 최대연기밀도는 10월의 생엽이 약간 높은 것으로 나타났지만 월별 차이는 거의 없었으며, 7월의 생엽은 다른 생엽들보다 상대적으로 빠른 시간인 795s에 최대값에 도달하는 것으로 나타났다.