• 제목/요약/키워드: Deficit

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ON THE ISOPERIMETRIC DEFICIT UPPER LIMIT

  • Zhou, Jiazu;Ma, Lei;Xu, Wenxue
    • 대한수학회보
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    • 제50권1호
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    • pp.175-184
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    • 2013
  • In this paper, the reverse Bonnesen style inequalities for convex domain in the Euclidean plane $\mathbb{R}^2$ are investigated. The Minkowski mixed convex set of two convex sets K and L is studied and some new geometric inequalities are obtained. From these inequalities obtained, some isoperimetric deficit upper limits, that is, the reverse Bonnesen style inequalities for convex domain K are obtained. These isoperimetric deficit upper limits obtained are more fundamental than the known results of Bottema ([5]) and Pleijel ([22]).

중년기 이후의 주거공간 규모에 영향을 미치는 특성 (Influential Factors on Size of Residential Space in Later Life)

  • 이인수
    • 한국주거학회논문집
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    • 제12권4호
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    • pp.93-104
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    • 2001
  • This study has been performed to analyze size and deficit problem of residential space in later life. In this study, 216 Koreans aged 50 to 79 were surveyed for their current residential space ad family related items such as age, marital status, living arrangement, birth order, and housing status. The results are drawn as follows: 1. The space size significantly fluctuates by marital status, number of generations living together, tenure, and structure type; For example, use of indoor area per person ranges from 7.01 pyoung for three-generation households to 19.53 for one-generation households. 2. s for space deficit, very old widowed females, 60's living in rented or multi-family housing units, and those living in three generations are high risk groups of the space deficit below 7 young per person. In this study, further researches are recommended as follows; Regarding the highest risk group of space deficit, life styles causing space-related conflicts should be studied, and accordingly proper welfare services for the causal life styles be offered. Housing maintenance & utility costs be investigated and guidelines should be proposed for any surplus groups among the 60's, so that their space surplus can be reduced by suitable adjustment process.

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철도 적자노선 및 적자역의 개념 정립에 관한 고찰 (Definition of Deficit Lines and Stations in Korean Railways)

  • 정호영;이창운
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2005년도 춘계학술대회 논문집
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    • pp.1033-1040
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    • 2005
  • There have been significant changes in the Korean railway environment in recent years. First, as the railway restructuring plan, Korea Rail Network Authority and KORAIL were established and commenced their works. Secondly, the opening of the high speed railway has provided a chance of reorganization in the whole operation system of the Korean railway network. These new changed environments require an alternative plan to examine the management system of deficit lines and their stations. This paper is intended to approach to clearly define the concept of deficit rail stations and lines in order to make a contribution to establish a comprehensive rationalization plan in the management environment of railroad. The study proposes some method to categorize their deficit stations and lines by three ways.

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주의력결핍 과잉행동장애 치료에서 MTA의 주요 교훈 (Major Lessons from the MTA in Treatment of Attention-Deficit Hyperactivity Disorder)

  • 황준원
    • Journal of the Korean Academy of Child and Adolescent Psychiatry
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    • 제21권1호
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    • pp.3-10
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    • 2010
  • Objectives : The current review aimed to describe the major findings of the NIMH Collaborative Multisite Multimodal Treatment Study of Children with Attention-Deficit Hyperactivity Disorder (MTA) with regard to the treatment of children with attention-deficit hyperactivity disorder (ADHD). Methods : We performed a general review of the literature regarding the efficacy of the MTA's proposed treatments. Results : There is a large and still increasing body of evidence regarding the MTA's treatment outcomes. We present and discuss details of the findings at each follow-up point. Conclusion : Currently, findings regarding the MTA's treatments suggest children with combined-type ADHD exhibit significant impairment in adolescence, despite their initial symptom improvement. Further studies, using innovative treatment approaches and targeting specific areas of adolescent impairment, are needed in order to enhance ADHD treatment outcomes.

입원 노인의 체질량 지수와 우울에 따른 수분섭취 부족 (BMI, Depression, and Fluid Deficit in Hospitalized Elders)

  • 신동수
    • 기본간호학회지
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    • 제14권1호
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    • pp.83-91
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    • 2007
  • Purpose: This study was done to examine the differences in the fluid volume deficit according to levels of depression and BMI. The results of this study will provide fundamental information for developing nursing interventions for hydration management. Method: The participants were 51 hospitalized elderly people in K province. Data were collected from September 4 to 30, in 2006. A structured questionnaire was used for the data collection. Frequencies, Percentages, Means, Standard Deviation, t-test, Mann-Whitney U test, and Kruskal-Wallis test were used with the SPSS Program to analyze the data. Results: There were significant differences in the fluid volume deficit between elders in the depressed and normal groups. Participants who had a BMI of less than $21kg/m^2$ had the highest fluid volume deficit. Conclusion: Water is an essential part of the human body although it is least studied in elderly people. Health care providers need to increase awareness of the importance of hydration status among hospitalized elderly people with chronic illnesses.

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Animal Models of Cognitive Deficits for Probiotic Treatment

  • Kwon, Oh Yun;Lee, Seung Ho
    • 한국축산식품학회지
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    • 제42권6호
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    • pp.981-995
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    • 2022
  • Cognitive dysfunction is a common symptom of neurodegenerative diseases, such as Alzheimer's disease, Parkinson's disease, and Huntington's disease, and is known to be caused by the structural and functional loss of neurons. Many natural agents that can improve cognitive function have been developed and assessed for efficacy using various cognitive deficit animal models. As the gut environment is known to be closely connected to brain function, probiotics are attracting attention as an effective treatment target that can prevent and mitigate cognitive deficits as a result of neurodegenerative diseases. Thus, the objective of this review is to provide useful information about the types and characteristics of cognitive deficit animal models, which can be used to evaluate the anti-cognitive effects of probiotics. In addition, this work reviewed recent studies describing the effects and treatment conditions of probiotics on cognitive deficit animal models. Collectively, this review shows the potential of probiotics as edible natural agents that can mitigate cognitive impairment. It also provides useful information for the design of probiotic treatments for cognitive deficit patients in future clinical studies.

An interesting case of survival to multiple ruptures of aneurysms, with persistent trigeminal artery, cranial nerve deficit, and evolutionary exposure of neurovascular treatment

  • Hector Lezcano;Maria Fernanda Solorzano
    • Journal of Cerebrovascular and Endovascular Neurosurgery
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    • 제25권2호
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    • pp.189-195
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    • 2023
  • Subarachnoid hemorrhage secondary to rupture of an aneurysm is a severe condition, associated with a high rate of morbidity and mortality. There are few cases in the literature of rupture of an aneurysm of the persistent trigeminal artery. This is the case of a 62-year-old female who has suffered multiple ruptures of aneurysms, in different decades of her life, with the development of de novo aneurysm, been this the presented case, a rupture of aneurysm of the persistent trigeminal artery. This patient has survival to these conditions and remain without important morbidity. The case manifested with a clinical picture of third and seventh cranial nerve deficit, which this last one, there are not previous publications of cases with this deficit. This aneurysm was embolized with coils, and the postoperative condition was satisfactory, been discharged at 4 postoperative days.

확률분포를 이용한 지속가능한 빗물이용시설의 저류용량 산정 (Estimation of Storage Capacity for Sustainable Rainwater Harvesting System with Probability Distribution)

  • 강원구;정은성;이길성;오진호
    • 한국물환경학회지
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    • 제26권5호
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    • pp.740-746
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    • 2010
  • Rainwater has been used in many countries as a way of minimizing water availability problems. Rainwater harvesting system (RHS) has been successfully implemented as alternative water supply sources even in Korea. Although RHS is an effective alternative to water supply, its efficiency is often heavily influenced by temporal distribution of rainfall. Since natural precipitation is a random process and has probabilistic characteristics, it will be more appropriate to describe these probabilistic features of rainfall and its relationship with design storage capacity as well as supply deficit of RHS. This study presents the methodology to establish the relationships between storage capacities and deficit rates using probability distributions. In this study, the real three-story building was considered and nine scenaries were developed because the daily water usage pattern of the study one was not identified. GEV, Gumbel and the generalized logistic distribution ware selected according to the results of Kolmogorov-Smirnov test and Chi-Squared test. As a result, a set of curves describing the relationships under different exceedance probabilities were generated as references to RHS storage design. In case of the study building, the deficit rate becomes larger as return period increases and will not increase any more if the storage capacity becomes the appropriate quantity. The uncertainties between design storage and the deficit can be more understood through this study on the probabilistic relationships between storage capacities and deficit rates.

초기 청소년기 우울에 대한 주의력 결핍·과잉행동의 영향에 있어서의 성별에 따른 차이 (Gender Differences in Effects of Attention Deficit/Hyperactivity on Depression in Early Adolescence)

  • 최정아
    • 한국콘텐츠학회논문지
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    • 제14권11호
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    • pp.285-297
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    • 2014
  • 본 연구는 초기 청소년기의 주의력 결핍 및 과잉행동이 어떠한 경로를 통하여 우울에 영향을 미치는지, 그리고 그러한 경로에서 성별에 따른 차이가 존재하는지 검증하고자 하는 것이다. 이를 위하여 본 연구에서는 한국아동 청소년패널조사(KCYPS) 초등학교 4학년 3차년도 자료에 대하여 구조방정식 다집단분석을 이용하여 실증적 검증을 실시하였다. 분석 결과, 주의력 결핍 및 과잉행동은 사회적 위축과 교우관계를 통하여 직, 간접적으로 우울에 유의한 영향을 미치는 것으로 나타났으며, 이러한 경로 가운데 주의력 결핍 및 과잉행동과 우울 간의 관계에서 성별에 따른 차이가 존재하는 것으로 확인되었다. 이렇게 도출된 연구결과에 근거하여 주의력 결핍 및 과잉행동의 증상을 경험하고 있는 청소년의 우울에 대한 예방 및 개입과 관련된 함의가 제시되었다.