• 제목/요약/키워드: community stability

검색결과 331건 처리시간 0.021초

Ecological responses of natural and planted forests to thinning in southeastern Korea: a chronosequence study

  • Cho, Yong-Chan;Pee, Jung-Hun;Kim, Gyeong-Soon;Koo, Bon-Yoel;Cho, Hyun-Je;Lee, Chang-Seok
    • Journal of Ecology and Environment
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    • 제34권4호
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    • pp.347-355
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    • 2011
  • Effects of forest thinning on community level properties have not been understood yet in Korea. We investigated regeneration patterns and trajectories after a disturbance by applying a chronosequence approach. Light availability, litter and woody debris cover, and species composition were determined for twenty 50 m line-transect samples representing a disturbance duration gradient (within 11 years). Environmental factors such as light availability and coverage of woody debris and litter changed abruptly after thinning and then returned to the pre-disturbance state. Although species richness was gained at shrub and ground layer in a limited way in both forests, cover of various functional types revealed diversity in their responses. Notably, Alnus firma stands exhibited a larger increment of cover in woody plants. Ordination analysis revealed different regeneration trajectories between natural and planted stands. Based on ordination analysis, rehabilitated stands showed movement to alternative states compared with natural ones, reflecting lower resilience to perturbation (i.e., lower stability). Our results suggest that community resilience to artificial thinning depends on properties of the dominant species. But to get more explanatory ecological information, longer-term static observations are required.

강원도 일부지역 여중생에서 스트레스 수준에 따른 식행동 비교분석 (A Comparative Analysis of Eating Habits of Female Middle School Students in Gangwondo, Korea, According to Stress Levels)

  • 박용현;이지윤;정은;김복희
    • 한국지역사회생활과학회지
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    • 제26권3호
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    • pp.565-573
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    • 2015
  • This study examines the relationships between stress and eating habits of adolescents based on the assumption that adolescents require large amounts of nutrients and that eating habits affect their physical development, academic achievement, and emotional development. For this purpose, 213 adolescents in Gangwondo, Korea, were surveyed. Many studies have reported that stress causes changes in eating habits and affects health status. Based on the dietary action guide scores according to stress categories, eating instant foods less was significant (p<0.001), eating fast foods less was significant (p<0.05), and have soft drinks less was significant (p<0.001). The results suggest the importance of balanced nutrition based on the formation of right dietary habits for adolescents. Good nutrition can be determined through right knowledge of nutrition and dietary habits, and right dietary habits can improve health and physical development as well as mental and emotional stability. The analysis did not compare other regions, and therefore any generalization of the results should be made with caution. However, the results offer important insights into stress among adolescents for their effective counseling.

오디가루를 첨가한 소맥분의 유변학적 특성 (Studies on Rheological Properties of Weak Flour Containing Mulberry Powder)

  • 박향미;강근옥;이현주
    • 한국지역사회생활과학회지
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    • 제23권1호
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    • pp.51-59
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    • 2012
  • This study was conducted to investigate the rheological properties of mulberry powder on the weak flour using color, Rapid Visco Amalyzer(RVA), farinogram, alveogram. The lightness(L value) and yellowness(b value) decreased and the redness(a value) increased with increment of mulberry powder content. On the RVA data, the weak flour with 1% of mulberry powder showed the highest initial pasting temperature and peak viscosity, while the addition of mulberry powder reduced final viscosity. On the farinogram data, the consistency of the flour containing mulberry powder was decreased with increments of mulberry powder. This meant that mulberry powder could weaken the batter. Water absorption of the samples with mulberry powder was decreased more than the control. The development time of flour with mulberry powder was also decreased more than control, but the differences were not significant. The stability of the flour with adding mulberry powder was decreased. The Pmax value of the flour was decreased significantly by adding mulberry powder. Extensibility and swelling index were both increased, but there were no significant differences.

쑥 분말을 첨가한 소맥분의 리올로지 특성에 관한 연구 (Rheological Characteristics of Flour Batters in the Presence of Mugwort Powder)

  • 이현자;박상혜;강근옥
    • 한국지역사회생활과학회지
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    • 제20권2호
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    • pp.231-237
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    • 2009
  • This study was conducted to investigate the effects of mugwort powder on two types of flour batters, i.e., medium and cake, using the Falling Number test, RVA test, alveogram, and farimogram. The mugwort powder was added at 3% and 5% on the medium and cake flour bases, respectively. The Falling Numbers of the medium and cake flour batters with mugwort powder were increased due to the alteration of the protein in the flour. Analysis of the RVA characteristics showed that the addition of mugwort powder did not have significant effects on the initial pasting temperature. Peak viscosity, holding strength, final viscosity, and set back values of the medium flour batter were not consistent, but those of the cake flour batter were decreased. The characteristics of the alveogram showed that the addition of mugwort powder increased the extensibility and the swelling index. Farinogram demonstrated that the addition of mugwort powder decreased the water absorption and improved the stability of the medium and cake flour batters.

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기러기가족의 초국적 적응전략 및 가족 경로 (Transnational Life of Korean 'Wild Geese Family': Coping Strategies and Family Paths Across Time)

  • 강유진
    • 한국지역사회생활과학회지
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    • 제20권2호
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    • pp.205-221
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    • 2009
  • My concern was to explore how the Korean 'wild geese families' functioned to maintain 'familyhood' in spite of spatial separation by using a qualitative approach. I used personal narratives from eleven 'geese mothers' living in the United States. Family paths across time were analyzed to understand their complicated nature. Respondents adopted some coping strategies to obtain the flexibility and the stability for relocating their transnational lives. These were 1) communications, 2) relocation of household work, and 3) reinterpretation of 'sacrifice.' It seemed that their family paths become either the continuous type (prolong their stay) or the discontinuous type (not prolong their stay). These were shaped by complex individual, familial, and social forces which affected differently according to the steps of family life cycles. Therefore, this study showed that the Korean 'wild geese family' did not move toward the uni-direction with the same experiences and nature. More importantly, it is noteworthy to acknowledge that the prevalence of 'wild geese family' reveals the dynamic interactive nature of the family, i.e., actively responding to the changes and challenges from the diverse circumstances. It is inferred that the social and cultural factors such as the class mobility, the education system, and the values may influence the family life style.

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Poverty Alleviation Efforts through MDG's and Economic Resources in Indonesia

  • LAURENS, Samson;PUTRA, Aditya Halim Perdana Kusuma
    • The Journal of Asian Finance, Economics and Business
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    • 제7권9호
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    • pp.755-767
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    • 2020
  • The objective of this study is to examine and provide guidelines for regional governments, communities, and the private sector in planning and implementing poverty-reduction activities that are more effective, efficient, and targeted. Besides, this research's specific aims are: 1) increasing the rate of regional economic growth through optimization of potential sources of local income, 2) increasing per-capita income, and 3) reducing poverty, unemployment, and social-economic inequality of the community. The study was conducted in North Morowali District, Central Sulawesi Province, Indonesia, in 2018-2019. The research approach used quantitative and qualitative descriptive analysis. Data sources include sources from the Focus Group Discussion (FGD) and Regional Statistics. The results of this study are based on the Millennium Development Goals (MDG's) indicators that there are four priority scales in poverty reduction, namely, Health and Infrastructure (Priority I), Education (Priority II), Food stability (Priority III), and Population and Employment (Priority IV). Therefore, as a solution to poverty alleviation strategies, the cost approach through regional economic optimization and local income sources and community empowerment factors are essential. Apart from that, the involvement between elements (government, organizations, society, universities, and institutions) is expected to continue as an effort to realize poverty reduction can be optimally overcome.

음식모형시스템 개발 및 활용화 방안에 관한 연구 (Development of a Food Replica Information System and Its Applications to Community)

  • 권순호;민영희;이경희;홍주영;배상수
    • 보건행정학회지
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    • 제11권1호
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    • pp.37-61
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    • 2001
  • In the course of this research, we developed FRIS(Food Replica Information System), which calculates calories and nutrient values of foods in a very simple and interesting manner, and experienced of application to some communities. We expect that individuals will have opportunities to raise their consciousness of food, nutrients, and healthy living by participating in FRIS. 154 kinds of commonly consumed Korean foods were selected and one serving sized food replicas, having the same shapes, size, and color as the real foods, were constructed with attached bar code labels. An application program with food replicas and bar code was also developed in order to provide information on calories and nutrient values for people's meals or selected foods based on survey results of housewives' requirements related to foods and nutrients. FRIS should be a basic tool in nutrition education and consultation. Its applicability would vary according to the nutritionist's flexibility and contents of developed application programs. Technical stability should be strengthened and more useful contents of application prograln be added to spread the use of the system. Additionally, in future research, more delicate models should be developed and an analytical method should be applied to examine the effects of FRIS to individual behavioral changes in their eating habits.

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중국 노인주거단지에 관한 실태조사분석 연구 - 북경시 동방태양성 주거단지를 중심으로 - (A Study on Analysis With Present Conditions of Elderly Community in China - Focused on Oriental Sun City in Beijing -)

  • 유양;이동숙;윤충열
    • 한국농촌건축학회논문집
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    • 제19권4호
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    • pp.33-40
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    • 2017
  • Following the development of economy and progress of the society, the problem of aging population appears. In 1999, China had been classified as "aging society" and aging of population has become a serious social issue that affects the economic growth and social stability. And one of the crux issue is the dwelling of aged people. As a cosmopolitan city, Beijing keeps leading position on residential development. But facing grim problem of ageing population, and the problem of the elderly living has not been solved yet. At the beginning of 21 Century, the first aged community(Oriental Sun City) was built in Beijing, and attracted a large number of old people to move in. But there are many problems in the process of design and construction since there is not much correlative researches for planning and design of aged communities. With a view to aged communities in Beijing, this thesis intends to research on the planning and design of aged communities. This thesis will give reference to help the programming and design of aged communities.

고등학생의 인성특성, 식습관 및 푸드 네오포비아에 관한 연구 (A Study on Personality Characteristics, Eating Habits and Food Neophobia of High School Students)

  • 이선영;김진아;이심열
    • 대한지역사회영양학회지
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    • 제24권1호
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    • pp.38-46
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    • 2019
  • Objectives: This study examined the relationship among personality characteristics, eating habits and food neophobia of high school students. Methods: A self-administered questionnaire was applied to 512 students who were in the first and second grade in four different high schools in Gyeong-gi-province. The questionnaire was designed to examine the personality characteristics, eating habits, and food neophobia. Results: The personality characteristics of both boys and girls had intimacy, openness/intelligence, extroversion, sincerity, and emotional stability from highest to lowest. The girls (2.00) had better eating habits than the boys (1.90)(p<0.05). To examine the level of food neophobia using the FNS (Food Neophobia Scale), girls tended to score higher in the FNS than boys (36.36 vs. 34.06). The relationship between the personal characteristics and eating habits showed a positive correlation (p<0.01). The relationship between the personal characteristics and food neophoia revealed a negative correlation with all personal characteristics (p<0.01). Conclusions: The findings of the study confirmed the relationship among personal characteristics, eating habits, and food neophobia. This study is expected to provide ways to teach teenagers how to support their proper eating habits and personality characteristics.

Comparison of Feasibility of Touch-Based Cognitive Training Games in Community Elderly and Elderly with Minor Dementia

  • Jung, Seung-Hwa;Oh, Seon-Jin;Park, Hyun-Ju;Park, Dae-Sung
    • Physical Therapy Rehabilitation Science
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    • 제11권2호
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    • pp.154-164
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    • 2022
  • Objective: The purpose of this study is to select a cognitive training game that can evaluate five cognitive domains and to study their validity with existing cognitive evaluation tools. Design: Methods: Delphi survey was conducted through the 2nd questionnaire for 30 experts to select games suitable for training 5 cognitive domains. Five cognitive training games and Mini Mental State Examination - Korea(MMSE-K), and cognitive impairment screening test(CIST) were conducted for 82 elderly in the community. Pearson correlation analysis was performed to find out the correlation of the three tests. The ROC curve was used to calculate the selection criteria for the game results for the screening evaluation of the presence or absence of mild cognitive impairment. Results: The coefficient of variation to evaluate the stability of the Delphi survey was less than 0.50 in most game items. The 'correct answers' and 'level' of the five final selected game items showed a statistically significant positive correlation with the CIST and MMSE-K scores. CIST score and 'time' of all game items except 'number making_time' showed a statistically significant negative correlation. Conclusions: The validity of the cognitive training program using smart devices was evaluated, and the criteria for classifying the cognitive domain and distinguishing the presence or absence of cognitive impairment were confirmed.