• Weed & Turfgrass Science
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• v.3 no.3
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• pp.174-182
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• 2014

This paper provides some of the scientific background on how projected environmental conditions could affect weeds and weed management in crops. Elevated $CO_2$ levels may have positive effects on crop competitiveness with $C_4$ weeds, but these are generally outnumbered by $C_3$ species in weed populations. Moreover, higher temperatures and drought will favor $C_4$ over $C_3$ plants. The implementation of climate change adaptation technologies, such as drought-tolerant germplasm and water-saving irrigation regimes, will have consequences for crop-weed competition. Rainfed production systems are thought to be most vulnerable to the direct effects of climate change and are likely to face increased competition from $C_4$ and parasitic weeds. Biotic stress-tolerant crop cultivars to be developed for these systems should encompass weed competitiveness and parasitic-weed resistance. In irrigated systems, indirect effects will be more important and weed management strategies should be diversified to lessen dependency on herbicides and mechanical control, and be targeted to perennial rhizomatous ($C_3$) weeds. Water-saving production methods that replace a weed-suppressive floodwater layer by intermittent or continuous periods of aerobic conditions necessitate additional weed management strategies to address the inherent increases in weed competition. Thus, climatic conditions have a great effect on weed population dynamics all over the world.

• Research in Community and Public Health Nursing
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• v.24 no.2
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• pp.172-184
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• 2013

Purpose: The purpose of this study is to analyze the intervention studies for married immigrant women. Methods: Based on inclusion criteria, 45 articles published from 2006 to 2011 were reviewed and analyzed. Results: Among the total amount of studies, 77.8% have been conducted since 2009; and 46.7% of them were for a master's thesis, 11.1% were for a doctoral thesis, and 42.2% were journal articles. Most of them were quantitative research (77.8%) and 71.1% were conducted in urban areas. The most frequently conducted intervention was art therapy (35.6%), whereas 6.7% was health education. In total, 104 outcome indicators were used with 57 (54.8%) in the mental health domain, 29 (27.9%) in the social health domain, and 18 (17.3%) in the physical health domain. The most commonly used outcome indicator was self-esteem (23.2%), and the next, in the order of frequency, included self-efficacy (23.2%), acculturative stress (21.4%), and depression (10.7%). Conclusion: Most intervention studies were conducted to support the sociocultural adaptation of married immigrant women, while few intervention studies were conducted to support the health of married immigrant women. To promote the health and quality of life of married immigrant women, many health related intervention programs should be undertaken.

• Journal of Environmental Science International
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• v.29 no.7
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• pp.773-784
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• 2020

In order to protect the lives and property of citizens, the central and local governments are responding by enacting municipal ordinances and regulations as the frequency of extreme weather conditions due to climate change increases and intensity increases gradually. Accordingly, the basic contents and strategies of domestic and foreign policies to cope with cold and heat waves were reviewed, referring to measures suitable for application to the Daegu metropolitan area. In addition, it is intended to provide a policy alternative to Daegu metropolitan area to minimize damage from extreme weather by identifying the current status, characteristics, and future prospects of extreme weather in Daegu metropolitan area. Since the damage caused by the cold wave in Daegu area is not as great as that of other regions, it is urgent to come up with cold wave measures for the health and transportation sectors, and to come up with measures against the heat wave as the damage caused by the heat wave is the most serious in the country. Also we will identify spatial characteristics so that the districts and counties with high vulnerability to extreme weather can be identified and implemented first, and present civic life-oriented facilities and civic action guidelines to overcome cold and heat waves.

• Korean Journal of Medicinal Crop Science
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• v.16 no.4
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• pp.225-230
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• 2008

Diabetes mellitus is the fifth leading cause of death among Koreans. Control of hyperglycemia and dyslipidemia is strongly correlated with decrease in risks for cardiovascular diseases, the most common and fatal diabetic complication. The effects of chronic feeding of a mixture of Chinese herbs on blood lipid profile were measured in an animal model of type 2 diabetes mellitus, db/db mice (C57BL/Ks). The Chinese herb mixture was composed of Panax ginseng C. A. Meyer,Astragalus membranaceus, Glycyrrhiza uralensis, Lycium chinense, Morus, Pueraria thunbergiana, Prunella vulgaris var. lilacina, Acanthopanax sessiliflorus, Schizandra chinensis, Scutellaria baicalensis, Dioscorea batatas, Polygonatum doratumvar. pluriflorum, Paeonia lactiflora, and Rehmannia glutinosa in a ratio of 1 : 0.7 : 0.4 : 0.7 :0.4 : 0.7 : 1.1 : 0.9 : 0.4 : 0.4 : 0.7 :0.7 : 0.9 : 0.9. Methanol extract of the Chinese herb mixture was tested for the inhibitory activity against yeast ${\alpha}$-glucosidase in vitro. The Chinese herb mixture extract inhibited ${\alpha}$-glucosidase by 25.2% at the concentration of 0.5mg/mL. Four weekold male db/db mice (n = 14) were fed AIN-93G semipurified diet or diet containing 10% powder of the Chinese herb mixture for 6 weeks after 1 week of adaptation period. Body weight (39.5 ${\pm}$ 1.6 g) and food intake (4.3 ${\pm}$ 0.6 g/day) of the Chinese herb group were not significantly different from those of the control group (40.4 ${\pm}$ 2.6 g and 4.5 ${\pm}$ 0.6 g/day). Consumption of Chinese herb mixture significantly decreased plasma glucose level (442.5 ${\pm}$ 36.0mg/dL) compared with the control group (489.8 ${\pm}$ 34.6 mg/dL, p < 0.05). Plasma cholesterol level (159.2 ${\pm}$ 18.4 mg/dL) of the Chinese herb group was significantly lower than that of the control group (185.4 ${\pm}$ 13.7 mg/dL, p < 0.05). Blood glycated hemoglobin (6.3 ${\pm}$ 0.8%) and plasma triglyceride levels (99.4 ${\pm}$ 15.0mg/dL) of the Chinese herb group were not significantly different from those of the control group (6.7 ${\pm}$ 0.7% and 108.8 ${\pm}$ 11.0mg/dL). Thus, the Chinese herb mixture could be useful in the treatment of diabetes and cardiovascular complications of diabetes.

• 한국노년학
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• v.25 no.2
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• pp.211-227
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• 2005

The purpose of this study was to investigate the characteristics of emotional life across the life span and to examine the affective optimization theory emphasized positive aspect of aging. Three age groups(young group N=238. middle group N=495, old group N=283) were participated in this study. As a result, there were no age differences between the old and the middle group in the frequency of positive emotion experiences, but the old group experience more negative emotions than the middle group. However, generally they experienced positive emotions more often than negative emotions. Also, there were age differences in choosing social goals. The older group took the goals that related to emotional regulation and personal relationship more important than the goals related to learn something new or approve their ability. Interestingly, there were no age differences among three age groups in subjective well-being even though there existed differences in experiences of frequency of positive and negative emotions. Finally, the importance of role of the affective optimization in subjective well-being and adaptation in later life was discussed.

• Korean Journal of Plant Resources
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• v.18 no.3
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• pp.433-440
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• 2005

Four varieties of perilla(Perilla ocimoids L.) were tested to investigate the ecological adaptation of the crop to variations in sowing time extending from April 25 to July 25 with an interval of 30 days between each of the four sowing. As sowing time was delayed, the plant height, the number of first branches and cluster, the weight of fresh and dried stems, the day to germination and flowering decreased, showing a highly negative correlation between the showing dates and these characteristics, but a highly positive correlation between days to flowering and the required accumulated temperature. With early sowing under low temperature and long day conditions, it took about 132 days from sowing to flowering due to the long period of vegetative growth, but as sowing was delayed, the days to flowering decreased with a minimum period of 57 days. The yield of seeds in each case varied with each variety. Type A(Nonsan var.) and type B(Jinchon var.) had higher yields when sowed earlier. But type C(Namyang var. and Wooljin var.) had its highest yield in the plot sowed on May 25 and the 1000 grain weight showed a tendency to increase as sowing was delayed. In conclusion, the perilla was preyed to be a short-day plant that flowers from the begining to the middle of Sep. regardless of sowing time, so that the sowing time should be decided after due consideration of the length of the vegetative growth periods of the varieties.

• Journal of Christian Education in Korea
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• v.66
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• pp.147-178
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• 2021

The purpose of this study is to clarify the contribution of Christian faith in the process of establishing self-identity and stably settling in the process of North Korean youth settling in Korean society. The research method used narrative. Participants in the study were nine late youth who belonged to the church, aged 17 to 24 years old, who had been in Korea for more than one year. Through this study, themes were derived from four categories. First, a retrospective narrative of the North Korean defection motive was dealt with. Second, it deals with the psychological adaptation process and unsolved tasks. Third, I dealt with the thoughts of the family, the discourse and vision for unification, which they dream of in Korean society as Christian believers. Fourth, it is about the Christian faith, and it is said that the Christian faith gives North Korean refugee youth the power to reflect on their lives, and to see the essence of life through the values of interest in others, history, society, and the kingdom of God. These results are based on the encounters with church and alternative school leaders and various curriculums that North Korean refugee youth experience and talk about. In the sense that it seeks and suggests a new direction in the era of preparation for unification, this article can be said to be of great value for Christian education.

• Journal of Korean Home Economics Education Association
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• v.27 no.4
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• pp.173-189
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• 2015

The Korean society has been dramatically changed in its population, with rapidly increasing number of multicultural families through international marriages. The objective is to investigate the dietary patterns as an acculturation for multicultural families in urban area. The research target was 89 marriage immigrant females in Daejeon, in whom 50.6 % was in their twenties and 49.4 % was in their thirties to forties. 39.3% of the subjects was from China and 28.1 % from Vietnam, which showed similar pattern to the ratio of marriage immigrants' homeland in Korea. As age goes higher, cultural adaptation in Korea was the integration pattern. Marriage immigrant females from Vietnam showed the highest rates of marginalization pattern as cultural adaptation. Moreover, those with longer marriage duration and with children tend to show higher rates of integration pattern. 'Food attitude', 'food diversity', and 'balance life' as eating behaviors are related with acculturation. In conclusion, the multicultural families in urban area showed integration acculturation patterns, which could be influenced by their socioeconomic factors, such as residence period and Korean language ability and food diversity as dietary patterns factors. Further study with a quantitative analysis is needed in order to understand the effect of dietary patterns on acculturation in the multicultural families.

• Journal of Life Science
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• v.28 no.7
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• pp.849-856
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• 2018

Diarrhea is one of the main disorders which cause the highest level mortality of the post-weaning economic animal. Beech-wood creosote has been used as a traditional anti-diarrheic medicament for a long time. The present study was conducted to investigate the effects of dietary supplementation of Beech-wood on growth performance and intestinal microbiota in rats. Twelve 4-week-old rats were randomly assigned to one of four dietary groups and fed a basal diet supplemented with none (CON), 0.5% apramycin (ANTI), 0.4% creosote (Creo 0.4), or 0.8% creosote (Creo 0.8) for 4 weeks following 1 week of adaptation period to the respective diet. Average daily gain was not influenced by the dietary treatment whereas average daily feed intake was greatest for the Creo 0.8 group. In the intestinal microbiota at the level of the phylum, the percentage of Firmicutes bacteria decreased but Bacteroidetes increased in the Creo 0.8 group vs. Control, which resulted in a decreased F/B ratio for the former (p<0.05). Moreover, the percentage of Lachnospiraceae was greater at the level of the family for the Creo 0.8 group than for Control, but the percentages of Turicibacter and Clostridium disporicum were less in the former (p<0.01) at the genus and species levels, respectively. Collectively, the present results indicate that dietary supplementation of creosote increases the feed intake and also influence the intestinal microbiota in rats.

• Journal of Information Technology Applications and Management
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• v.28 no.3
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• pp.59-75
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• 2021

This study aims to establish a foundation for autonomous driving on campus and communication of abundant university information in the HCI environment in a VR environment where college freshmen can freely travel around campus facilities. The purpose of this study is to develop a three-dimensional VR-style campus tour system to establish a media environment to provide abundant university information guidance services to freshmen in non-face-to-face situations. This study designed a three-dimensional virtual reality campus tour system to solve the problem of discontinuity in which VR360 filming space does not lead to space like reality, and to solve many problems of expertise in VR technology by constructing an integrated production environment of tour system. We aim to solve the problem of inefficiency, which requires a large amount of momentum in virtual space, by constructing a GUI that utilizes the motion of the field of view focus. The campus environment was designed as a three-dimensional virtual reality using a three-dimensional graphic design. In non-face-to-face situations, college freshmen freely transformed the HMD VR device, smartphone, FPS operation mode of the gyroscope sensor. The design elements of the three-dimensional virtual reality campus tour system were classified as ①Visualization of factual experiences, ②Continuity of space movement, ③Operation, automatic operation mode, ④Natural landscape animation, ⑤Animation according to wind direction, ⑥Actual space movement mode, ⑦Informatization of spatial understanding, ⑧GUI by experience environment, ⑨Text GUI by building, ⑩VR360, 3D360 Studio Environment, ⑪Three-dimensional virtual space coupling block module, ⑫3D360-3D Virtual Space Transmedia Zone, ⑬Transformable GUI(VR Device Dual Viewer-Gyro Sensor Full Viewer-FPS Operation Viewer) and an integrated production environment was established with each element. It is launched online (http://vautu.com/u1) by constructing a GUI for free driving mode and college information screens to adapt to college life for freshmen, and designing an environment that can be used simultaneously by current media such as PCs, Android, and iPads. Therefore, it conducted user research, held a development presentation, a forum on excellence in university innovation support projects, and applied it as a system on the website of a particular university. College freshmen will be able to experience university information directly from the web and app to the virtual reality campus environment.