• 제목/요약/키워드: restriction factors

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유전자지문분석법(T-RFLP)을 이용한 하천 미생물의 다양성 평가 (Evaluation of Riverine Microbial Diversity using the Culture-Independent Genetic Fingerprinting Technique (T-RFLP))

  • 정주용;이경희
    • 한국물환경학회지
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    • 제24권2호
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    • pp.195-200
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    • 2008
  • To analyze the riverine microbial community structure, genetic fingerprints and ecological indexes such as species abundances, diversity, evenness, dominance of targeted rivers in Gyeonggi Province were acquired and evaluated using terminal restriction fragment length polymorphism (T-RFLP) technique. Genetic fingerprinting technique such as T-RFLP, which is able to show the microbial community clearly unlike traditional culture-dependent techniques, was thought to be useful to analyse the riverine microbial ecosystem under various factors. Riverine ecosystem evaluation using visible organisms would give biased results with time, targeted organism and researcher. But, T-RFLP, which can exclude the subjected biases such as culture condition and identification, would be an option to understand natural ecosystem by including the microorganisms that defy culture but perform important functions.

Intermittent Fasting: a Promising Approach for Preventing Vascular Dementia

  • Yoon, Gwangho;Song, Juhyun
    • 지질동맥경화학회지
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    • 제8권1호
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    • pp.1-7
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    • 2019
  • Vascular dementia is the most common neuropsychiatric syndrome and is characterized by synaptic dysfunction, neuroinflammation, and cognitive dysfunction. Vascular dementia is associated with various environmental, genetic, and lifestyle risk factors. Recent research has focused on the association between vascular dementia and dietary patterns, suggesting that dietary regulation leads to better control of energy metabolism, improvements in brain insulin resistance, and the suppression of neuroinflammation. Intermittent fasting is a calorie-restriction method known to be more effective in promoting fat loss and regulating the impairment of glucose metabolism as compared with other dietary restriction regimens. Herein, the authors review the effects of intermittent fasting with regard to vascular dementia based on recent evidence and propose that intermittent fasting could be a therapeutic approach for ameliorating vascular dementia pathology and preventing its onset.

ROME III에 의한 국내 대학생의 과민성 장 증후군의 유병률, 증상유형 및 위험요인 (The Prevalence, Subtypes and Risk Factors of Irritable Bowel Syndrome by ROME III among Korean University Students)

  • 박미정;이경숙;정재심;김주현;최정안;신기수;최명애
    • Journal of Korean Biological Nursing Science
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    • 제13권1호
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    • pp.61-71
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    • 2011
  • Purpose: The purpose of the present study was to investigate the prevalence, subtypes and risk factors of irritable bowel syndrome by ROME-III among Korean university students. Methods: This study was descriptive survey research. The sampls were 796 and variables were measured by structured questionaire. Rome-III criteria was used for diagnosis of IBS. The gathered data were analyzed with %, $x^2$-test, t-test, logistic regression by SPSS win 17.0. Results: The students with IBS were 61 (7.7%) and the most of the subtype was IBS-M (42.6%). Meal (times/day), breakfast, stress, quality of sleep, neuroticism, bodily pain, general health, social function, role emotional restriction, mental health, somatization, obcessive-compulsive state, depression, anxiety, hostility, global severity index, positive symptom distress index, positive symptom were significantly different between IBS group and non-IBS group. The prevalence of IBS was low in the higher score of role emotional in general health state. There were more 2 times students who had score of the obsessive-compulsive in psychological health over the 50 than below the 50 in IBS group. Conclusion: 7.7% of students were diagnosed by Rome-III criteria and the most of the sybtype was IBS-M. The risk factors of IBS were role emotional restriction, obsessive-compulsive state.

Prognostic Factors of Orbital Fractures with Muscle Incarceration

  • Lee, Seung Chan;Park, Seung-Ha;Han, Seung-Kyu;Yoon, Eul-Sik;Dhong, Eun-Sang;Jung, Sung-Ho;You, Hi-Jin;Kim, Deok-Woo
    • Archives of Plastic Surgery
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    • 제44권5호
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    • pp.407-412
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    • 2017
  • Background Among the various signs and symptoms of orbital fractures, certain clinical findings warrant immediate surgical exploration, including gaze restriction, computed tomographic (CT) evidence of entrapment, and prolonged oculocardiac reflex. Despite proper surgical reconstruction, prolonged complications such as diplopia and gaze restriction can occur. This article evaluated the prognostic factors associated with prolonged complications of orbital fractures with muscle incarceration. Methods The medical records of 37 patients (37 orbits) with an orbital fracture with muscle incarceration from January 2001 to January 2015 were reviewed. The presence of Incarcerated muscle was confirmed via CT, as well as by intraoperative findings. Various factors potentially contributing to complications lasting for over 1 year after the injury were categorized and analyzed, including age, cause of injury, injury-to-operation time, operative time, fracture type, nausea, vomiting and other concomitant symptoms and injuries. Results All patients who presented with extraocular muscle limitations, positive CT findings, and/or a positive forced duction test underwent surgery. Of the 37 patients, 9 (24%) exhibited lasting complications, such as diplopia and gaze restriction. The mean follow-up period was 18.4 months (range, 1-108 months), while that of patients who experienced prolonged complications was 30.1 months (range, 13-36 months). Two factors were significantly associated with prolonged complications: injury-to-operation time and nausea/vomiting. Loss of vision, worsening of motility, and implant complication did not occur. Conclusions Patients who present with gaze limitations, with or without other signs of a blow-out fracture, require a thorough evaluation and emergent surgery. A better prognosis is expected with a shorter injury-to-operation time and lack of nausea and vomiting at the initial presentation.

지역사회 거주 척수장애인의 참여 제약에 영향을 미치는 예측요인 (Predictors of Participation Restriction in Community-dwelling Persons With Spinal Cord Injury)

  • 김연주;박지혁;김정란;박혜연
    • 재활치료과학
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    • 제7권4호
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    • pp.19-30
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    • 2018
  • 목적 : 본 연구의 목적은 지역사회 거주 척수장애인의 참여 제약과 관련이 있는 요인간의 상관관계 및 그 영향을 종합적으로 분석하는 것이다. 연구방법 : 연구 대상은 지역사회에 거주하는 미국 척수 손상 협회(American Spinal Injury Assocation; ASIA) 분류법 상 손상정도(Frankel type)가 A,B,C에 해당하는 만 18세 이상 성인 척수장애인 82명이었다. 대상자들을 통하여 참여, 환경적 요인, 기능적 요인, 손상관련 요인, 심리사회적 요인, 인구사회학적 요인을 조사하였다. 참여 수준은 한국형 단축형 크레이그 핸디캡 평가(CHART-K-SF)로, 환경적 요인은 CHIEF-25 한국형으로, 기능적 요인은 척수손상환자 독립성 지수SCIM-III을 사용하였다. 손상관련 요인의 통증 및 통증관련 심리적 고통은 Pain and Distress Scale (PAD)로, 심리사회적 요인 중 자존감은 로젠버그 자아존중감 척도(RSES), 자기효능감은 일반적 자기효능감 척도(GSS)로 평가하였다. 수집된 정보는 SPSS Version 21.0을 통하여 상관관계분석, 로지스틱 회귀분석, 다중회귀분석에 사용되었다. 결과 : 참여 제약의 위험요인은 환경적 요인과 기능적 요인이었으며, 본 회귀모형의 설명력은 약 73.7%였다(R2N=.737). 환경적 장벽이 있는 것이 없는 것에 비해 약 40배 정도 참여 제약을 겪을 위험도가 높았으며, 기능적 수준이 4사분위수(상위 25%)인 것에 비해, 2사분위수일 경우 약 21배, 1사분위수(하위25%)일 경우 약 236배 정도 참여 제약을 겪을 위험도가 높아졌다. 결론 : 본 연구는 지역사회 거주 척수장애인의 참여 제약의 예측요인을 다각적인 측면으로 확인한 것에 의의가 있으며, 이를 통하여 지역사회에서 척수장애인에 대한 작업치료사의 역할을 규명한 것에 중요한 의미를 갖는다.

Country Fundamentals and Currency Excess Returns

  • Kim, Daehwan;Song, Chi-Young
    • East Asian Economic Review
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    • 제18권2호
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    • pp.111-142
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    • 2014
  • We examine whether country fundamentals help explain the cross-section of currency excess returns. For this purpose, we consider fundamental variables such as default risk, foreign exchange rate regime, capital control as well as interest rate in the multi-factor model framework. Our empirical results show that fundamental factors explain a large part of the cross-section of currency excess returns. The zero-intercept restriction of the factor model is not rejected for most currencies. They also reveal that our factor model with country fundamentals performs better than a factor model with usual investment-style factors. Our main empirical results are based on 2001-2010 balanced panel data of 19 major currencies. This paper may fill the gap between country fundamentals and practitioners' strategies on currency investment.

가로주택정비사업의 사업시행 지연요인에 관한 연구 - 인천광역시 사례를 중심으로 - (A Study on Implementation Delay Factors of the Block-unit Housing Renewal Project - Focused on the Incheon Metropolitan City -)

  • 한영훈;나인수
    • 한국BIM학회 논문집
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    • 제12권4호
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    • pp.32-40
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    • 2022
  • The block-unit housing renewal project was presented as an alternative method to overcome the side effects of large-scale renewal projects while improving poor residential conditions. However, projects implementation is prolonged and even the pace of projects, which was considered an various incentives, is being delayed for the most part. In this study, delay factors are drawn by eight; conflict among association members, contract delay of joint implementation, participation paucity of constructor, inadequate project guidelines, alteration of project plan, lack of renewal project professionals, stricter loan restriction of HUG, lack of capacity of project operator. We categorized those eight factors to three aspects such as implementation, participants and proposition and suggested improvement alternatives according to three aspects.

겸업제한 폐지에 따른 철근콘크리트 전문건설업체의 발전요인 (Improvement Factors for Reinforced Concrete Firm against Removing the restriction of Construction Market Activation)

  • 박정호;전훈배;조규만;홍태훈;구교진;현창택
    • 한국건설관리학회논문집
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    • 제9권1호
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    • pp.118-125
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    • 2008
  • 최근 건설교통부는 일반건설업과 전문건설업간의 겸업제한 관련 법안 폐지를 입법예고 하였다. 겸업제한 폐지는 국내 건설산업체제에 있어서 거대한 변화이며, 이는 일반건설업체 및 전문건설업체 모두에게 적지 않은 영향을 미친다. 본 연구의 목적은 철근콘크리트 전문건설업체가 겸업제한 폐지라는 환경변화에 대한 발전요인을 제시하는 것이다. 본 연구는 SWOT분석을 통하여 철근콘크리트업체의 강점, 약점, 기회, 위기 분석 및 전략을 도출하였다. 다음으로 전문건설업체의 실무자를 대상으로 설문조사를 실시하고, 이를 바탕으로 요인분석을 실시하여 발전요인을 제시하였다. 본 연구를 통하여 철근콘크리트 업체의 효과적인 경영 전략을 모색하며, 나아가 경영난을 겪고 있는 타 업종의 전문건설업체에게 도움을 주고자 한다.

양육행동 및 형제관계와 아동의 자존감과의 관계 연구 : - 자존감에 대한 양육행동 및 형제관계의 독립적 기여와 상호작용 효과 - (Parental Childrearing, Behavior, Children's Sibling Relationships and Children's Self-Esteem)

  • 박영애;정옥분
    • 아동학회지
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    • 제17권1호
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    • pp.189-212
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    • 1996
  • The purpose of this study was to investigate how parental childrearing behavior and children's sibling relationships are related to children's self-esteem. 440 middle class families consisting of two children and their parents were the subjects of this study. The research instruments included a childrearing behavior questionnaire, the Sibling Relationships Questionnaire (Furman & Buhrmester, 1985), and the Self-Perception Profile for Children (Harter, 1985). Analyses of the data included correlation analysis, canonical correlation, regression, stepwise multiple regression, and MANOVA with stepwise discriminant analysis as the follow-up test. The most powerful predictors of children's self-esteem were the Warmth-Acceptance of childrearing behavior and the Warmth-Closeness of sibling relationships. The self-esteem dimension was best predicted by parental childrearing behavior and by children's sibling relationships was Global Self-Worth. Behavioral Conduct was best predicted by the Rejection-Restriction factor of childrearing, and by Conflict (for boys) and Rivalry (for girls) factors of sibling relationships. Children's self-esteem was related more strongly to the Warmth-Acceptance and the Rejection-Restriction of opposite-sex parents. The effects of Permissiveness-Nonintervention were stronger in same-sex parent-child dyads. Parental childrearing behaviors accounted for boy's self-esteem better than girl's with the exception of Behavioral Conduct. Sibling relationships accounted for girl's self-esteem better than boy's. The $2{\times}2$ MANOVA revealed interaction effects of parental childrearing behaviors and sibling relationships on children's self-esteem. Two factors of Rivalry and Conflict in sibling relationships and all three factors of childrearing behaviors showed significant interaction effects, The childrearing factor of Permissiveness-Nonintervention and the sibling factor of Rivalry, which were relatively weak predictors of self-esteem when acting alone, gained power in explaining children's self-esteem within the interactional context.

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의사결정나무 분석법을 이용한 우울 노인 중 자살 고위험군 규명 (Identification of High-risk Groups of Suicide from the Depressed Elderly using Decision Tree Analysis)

  • 홍세훈;이동원
    • 지역사회간호학회지
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    • 제30권2호
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    • pp.130-140
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    • 2019
  • Purpose: The aim of this study is to explore levels of suicidal ideation and identify subgroups of high suicidal risk among the depressed elderly in Korea. Methods: A descriptive cross-sectional design was adopted on secondary data from the 6th (1st year) Korean national health and nutrition examination survey (KNHANES). A total of 239 depressed elders aged 60 or over who participated in the KNHANES. The prevalence of suicidal ideation and its related factors, including sociodemographic, physical, psychological characteristics and quality of life (EQ-5D index) were examined. Descriptive statistics and a decision tree analysis were performed using the SPSS/WIN 23.0 and SPSS Modeler 14.2 programs. Results: Of the depressed elderly, 28.9% had suicidal ideation. Three groups with high suicidal ideation were identified. Predictive factors included perceived stress level, household income level, quality of life and restriction of activity. In the highest risk group were those depressed elderly with moderate and low levels of stress, less than .71 of EQ-5D index and restriction of activity, and 80.0% of these participants had suicidal ideation. The accuracy of the model was 80.8%, its sensitivity 85.9%, and its specificity 68.1%. Conclusion: Multi-dimensional intervention should be designed to decrease suicide among the depressed elderly, particularly focusing on subgroups with high risk factors. This research is expected to contribute itself to the policy design and solution building in the future as it suggests policy implications in preventing the suicide of the depressed elderly.