• Title/Summary/Keyword: Restriction factors

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

  • Jeong, Ju-Yong;Lee, Kyong-Hee
    • Journal of Korean Society on Water Environment
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    • v.24 no.2
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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
    • Journal of Lipid and Atherosclerosis
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    • v.8 no.1
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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.

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

  • Park, Mi-Jung;Lee, Kyung-Sook;Jeong, Jae-Sim;Kim, Joo-Hyun;Choi, Jung-An;Shin, Gi-Soo;Choe, Myoung-Ae
    • Journal of Korean Biological Nursing Science
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    • v.13 no.1
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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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    • v.44 no.5
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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.

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

  • Kim, Yeon-Ju;Park, Ji-Hyuk;Kim, Jung-Ran;Park, Hae Yean
    • Therapeutic Science for Rehabilitation
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    • v.7 no.4
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    • pp.19-30
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    • 2018
  • Objective: The purpose of this study was to suggest predictors of participation restriction in community-dwelling Spinal Cord Injury (SCI) based on environmental, functional, injury-related, psychosocial, and sociodemographic factors. Methods: The participants were 82 community-dwelling SCI adults over the age of 18. They were all included in the American Spinal Injury Association's (ASIA) Levels A, B, and C. This study surveyed participants' participation using the CHART-K-SF, environmental factors using the CHIEF-25 Korean version, and functional factors using the SCIM III. Further, pain and distress were surveyed using Zung's Self-rating Pain and the PAD, self-esteem was assessed using the RSES, and self-efficacy using the GSS. Finally, information concerning injury levels, post-injury period, causes of injury-related factors, and sociodemographic factors such as gender, age, marriage, education level, and residence information were collected. The collected data were analyzed using SPSS Version 21.0 Results: Participants' risk factors were environmental and functional. The Nagelkerke's $R^2$ was.737. The OddsRatio(OR) of environmental factors(referent,0-1) was 40.346. Moreover, the OR of the $1^{st}$ quartile functional factor(referent,4thquartile) was 236. 621, and that of the$2^{nd}$ quartile was 21.174. In addition, the occupational predictors included the "policies" subscales in the CHART-K-SF, "physical/structural" in the CHIEF-25, and "mobility" in the SCIM III. Further, the predictors of "physical independence" were "services/assistance" in CHIEF-25, and "respiration and sphincter management' on the SCIM III. Additionally, "mobility" was predicted by "physical/structural" on the CHIEF-25 and "mobility" on the SCIM III. Conclusions: This study multidimensionally confirmed predictors of participation restriction. Through these facts, we investigated occupational therapists' roles in community setting. Therefore, this study's results will provide useful information for occupational therapy services, for which the goal is SCI participation improvement within the community.

Country Fundamentals and Currency Excess Returns

  • Kim, Daehwan;Song, Chi-Young
    • East Asian Economic Review
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    • v.18 no.2
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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.

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

  • Han, Young Hoon;Na, In Su
    • Journal of KIBIM
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    • v.12 no.4
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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.

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

  • Park, Jeong-Ho;Jun, Hun-Bai;Cho, Kyu-Man;Hong, Tae-Hoon;Koo, Kyo-Jin;Hyun, Chang-Taek
    • Korean Journal of Construction Engineering and Management
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    • v.9 no.1
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    • pp.118-125
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    • 2008
  • Recently, the Ministry of Construction and Transportation announced a notice of the legislation related to remove the restriction of construction market activation in advance. he removement is an overwhelming change of the business structure in the Korean construction industry and has a far-reaching influence on general and trade contractors. The purpose of this research was to suggest improvement factors to survive an excessive competition in reinforced concrete market. This research did SWOT analysis to examine the strength, weakness, opportunity and threat of reinforced concrete firm, and established business strategies. The factor analysis was also applied with questionnaire survey to staff in charge of reinforced concrete company. It is expected that the suggested improvement factors can give effective business strategies to reinforced concrete firm. Furthermore, trade contractors having difficulty in a bottleneck in management can get help from the result of this research.

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

  • Park, Young Yae;Chung, Ock Boon
    • Korean Journal of Child Studies
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    • v.17 no.1
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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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Identification of High-risk Groups of Suicide from the Depressed Elderly using Decision Tree Analysis (의사결정나무 분석법을 이용한 우울 노인 중 자살 고위험군 규명)

  • Hong, Sehoon;Lee, Dongwon
    • Research in Community and Public Health Nursing
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    • v.30 no.2
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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.