• 제목/요약/키워드: causation

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Dynamics of Crude Oil and Real Exchange Rate in India

  • ALAM, Md. Shabbir;UDDIN, Mohammed Ahmar;JAMIL, Syed Ahsan
    • The Journal of Asian Finance, Economics and Business
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    • 제7권12호
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    • pp.123-129
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    • 2020
  • This scholarly work is an effort to capture the effects of oil prices on the actual exchange rate between dollar and rupee. This is done with reference to the U.S. dollar as oil prices are marked in USD (U.S. Dollar) in the international market, and India is among the top five importers of oil. Using monthly data from January 2001 to May 2020. The study used the real GDP, money supply, short-term interest rate difference between two countries, and inflation apart from the crude oil prices per barrel as the factors that help define the exchange rate. The analysis, through cointegration and vector error correction method (VECM), suggests long and short-run causality amid prices of oil and the rate of exchange fluctuations. Oil prices are found to be negatively related to the exchange rate in the long term but positively related in the short term. The result of the Wald test also indicates the short-run causation from the short-term interest rate and the prices of crude oil towards the exchange rate. The present study shows that oil prices are evidence of the existence of short-term and long-term driving associations with short-term interest rates and exchange rates.

시스템 사고를 통한 생태계서비스의 trade-off 관계 고찰 (An Analysis of Ecosystem Service's trade-off through Systems Thinking)

  • 함은경;김민;전진형
    • 한국시스템다이내믹스연구
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    • 제16권2호
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    • pp.75-100
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    • 2015
  • The purpose of this study is to analyze causation of Ecosystem service's trade-off(ES trade-off) and to establish baseline data for wise spatial planning and management. In order to understand why and how ES trade-off occurs, systems thinking and causal loops were employed. The causal loop of ecosystem service creation cycle includes profits quantification process, decision making process, spatial planning and management process, and ecosystem services creation process. The profits quantification process has a limitation that all ecosystem service categories were not included in profits quantification, because quantification method for cultural services is insufficient. These problems led to unequal discussion opportunity in decision making process. ES trade-off occurs through transition of ecosystem function in spatial scale and temporal scale. In spatial scale, land-use variation and resource-use variation contribute to change an ecosystem function for different ES category by spatial planning and management. In temporal scale, a change of an ecosystem function for different ES category is influenced by ecological succession, seasonal change and land cover variation, which are parameter from environmental features. This study presented that spatial planning and management should ecosystem service assessment in order to enhance balanced ecosystem services.

의료과오소송에 있어 입증책임 완화에 따른 의료과실의 의미와 판단기준 (The Meaning and Criterion of Medical Malpractice(negligence) from Moderating the Burden of Proof in a Medical Malpractice Suit)

  • 김용빈
    • 의료법학
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    • 제9권1호
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    • pp.57-127
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    • 2008
  • In medical malpractice lawsuits, negligence is generally defined as conduct that is culpable because it falls short of what a reasonable person would do to protect another individual from a foreseeable risks of harm. Thus, the essence of negligence is a breach of obligations to be attentive, and the breach of obligations to be is negligence. However, whether negligence is or not depends on time, place, litigation forms and the judge since the meaning of negligence is wavering on the basis of abstract and normative judgment. In this thesis, what is medical negligence, a breach of obligations of attention for a doctor in medical malpractice lawsuits, would be it further enacted that doctors have the responsibility to protect the patients as a subordinate duty due to a principle of faith and sincerity besides the main duty for medical contract-performance since the suit is a litigation form to be based on responsibilities of experts, especially doctors, though having factors that are non-contractual as a trait for medical treatment. Further on the concept, when the plaintiff asserts and proves a specific fact from the recent moderation of the burden of proof about medical malpractices, whether the court should find a true bill in medical malpractice actually or not has been discussed.

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한국 노인이 겪는 우울감 및 자살사고에 대한 질적 연구 분석 (Analysis of Qualitative Research About Depressed Mood and Suicidal Ideation of Korean Seniors)

  • 곽희용;서효원;정선용;김종우
    • 동의신경정신과학회지
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    • 제29권2호
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    • pp.99-109
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    • 2018
  • Objectives: To analyze the reports of qualitative research about depressed mood and suicidal ideation of Korean Seniors. Methods: Eleven published qualitative research studies were selected for analysis. We extracted common topics and factors of each stage, Selected factors were paralleled and synthesized to make a flow chart of the phenomena. Results: Depressed mood arousals of Korean seniors are categorized by causation factors, which include economic, psychosomatic, and social factors, and positive-negative coping strategies, which include cognitive-behavioral factors. Suicidal experiences are categorized as ideation, suicidal attempt, and after-suicide stage. In the latter, participants reported three types of lifestyles by their enthusiasm for 'being alive'. Conclusions: Through the qualitative synthesis of research, we could analyze and categorize major factors and coping strategies of participants who exhibited a depressed mood or suicidal ideation.

적외석 체열촬영에 관한 고찰 (Study on Infrared Thermography)

  • 김호봉
    • 대한정형도수물리치료학회지
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    • 제1권1호
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    • pp.9-14
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    • 1995
  • 인체에서 발생하는 체열을 과학적으로 이용하여 질병을 진단하고 치료과정을 관찰하고 예후를 추측할 수 있는 Thermography는 현대의학의 임상 여러분야에서 응용할 수 있는 유용한 진단장비에 속한다 하겠다. 인체의 피부온도는 좌우 대칭적으로 온도분포를 나타내며 여러가지 생리학적인 원인에 의하여 온도는 변화할 수 있으며, 그러한 온도변화는 여러 질병과의 연관성을 갖게 된다. Thermography는 유방암세포의 증식에 따른 유방체표면의 초기온도 상승을 screening 함으로서 조기에 유방암을 발견할 수 있으며, 척추의 신경근 자극에 따른 체열분포를 파악함으로서 신경근의 이상유무 및 척추질환을 진단할 수 있으며, 말초 혈액순환 장애 등으로 인한 질환에 있어서도 뚜렷한 체표면 온도분포를 나타내 줌으로서 혈액순환의 장애분포를 시각적으로 관찰할 수 있는 이점을 지니고 있다. 또한 정형 물리치료 분야에 속하는 근-골격계 질환에 있어서의 근육통, 압통점, 염좌, 염증질환 등을 구별할 수 있고 나아가 치료 전후에 적외선 체열검사를 실시해 봄으로서 치료전이나 치료결과에 대한 객관적인 평가를 할 수 있다는데 큰 의의가 있다고 하겠다.

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전략적 학습의 촉진을 위한.균형 성과측정시스템의 개발 (Balanced Performance Measurement System for Strategic Learning)

  • 민재형;이영찬;하창훈
    • 한국경영과학회지
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    • 제27권3호
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    • pp.93-114
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    • 2002
  • This paper suggests a dynamic balanced scorecard (DBSC) model employing the concept of system dynamics (SD), which could overcome the limitations inherent in the conventional balanced scorecard (BSC) and facilitate strategic learning process in organizations. The BSC has been a successful framework for measuring an organization's performance in various Perspectives through translating an organization's vision and strategy into an interrelated set of key performance indicators and specific actions. The BSC, while having significant strengths over traditional performance measurement methods, however, has its own limitations, due to its static nature, such as overlooking two-way causation between performance Indicators and neglecting the impact of delayed feedback flowing from the adoption of new strategies or policy changes. To overcome these limitations, we employs SD, a methodology for understanding complex systems where dynamic feedback among the interrelated system components significantly impact on the system outcomes. The SD simulation model in the form of DBSC we suggest in this paper would serve as a useful strategic learning tool for facilitating an organization's communication process through various scenario analyses as well as predicting the dynamic behavior pattern of their key performance measures over a future time frame. For the demonstration purpose, we apply the DBSC model to Korea Coal Corporation (KoCoal ) BSC case.

제조업 근로자의 작업환경안전에 영향을 미치는 요인에 관한 연구 (A Study on the Factors Influencing Safeness of Work Environment in Manufacturing Industry)

  • 권오준
    • 한국안전학회지
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    • 제24권5호
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    • pp.77-83
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    • 2009
  • The manufacturing industry is the one with the most frequent industrial disasters, and it is important to study the safety climate recognized by workers in the industry in order to actively prevent industrial accidents. However, little research has been performed on the safety climate in workplaces felt by the workers in the manufacturing industry. The purpose of this study is to identify the factors affecting work environment safeness based on practical analysis via survey, and to establish the relation between safety performance factors and safeness of work environment. The survey was performed for workers in the manufacturing industry(n=228), and structural equations model analysis by using the AMOS 7.0 was performed in order to identify the fit of the research model and the causation among factors. According to the results of the analysis, the reliability and the model fit were appropriate for interpretation, and safety participation was shown to affect safeness of work environment more than safety compliance. The results of this study may serve as the reference for taking a measure to improve the level of safeness of the work environment felt by workers in the manufacturing industry.

정신의학의 진화생태학적 연구 시 고려사항 (Considerations about Evolutionary Ecological Study of Psychiatry)

  • 박한선
    • 인지과학
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    • 제30권4호
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    • pp.199-217
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    • 2019
  • 정신장애에 관한 진화 연구는 다른 의학 연구에 비해 어렵다. 정신장애는 신체 질병에 비해 근연원인(proximate causation)이 불명확하고, 다양한 요인이 관여하며, 원인과 결과를 구분하기 어렵고, 실험적 연구를 수행하는 것도 쉽지 않기 때문이다. 이러한 난점에도 불구하고 우선 환원 모델을 이용하여 정신장애에 관한 진화 가설을 수립하고 이를 바탕으로 실제 데이터를 실증해나가는 방법이 가능할 것이다. 본고에서는 이러한 입장에서 생태학적 접근 방법을 진화정신의학 연구에 적용할 때 필요한 몇 가지 개념 정의에 대해 논의하고자 한다. 인간의 정신병리를 진화적으로 탐구할 때 적합한 설명의 수준, 연구 대상의 범위를 논의하고, 행동과 기능, 역기능의 개념 정의, 연구 대상으로서 적절한 선택의 층위에 대하여 다루고자 한다.

Lysophosphatidic Acid-Induced TWIST1 and Slug Expression in Oral Cancer Cell Invasion

  • Cho, Kyung Hwa
    • 치위생과학회지
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    • 제17권5호
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    • pp.433-438
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    • 2017
  • Relative to its incidence, oral cancer has serious negative social effects. The exact causes of oral cancer have not been clarified, but many studies have implicated smoking and drinking. However, the fundamental mechanism of oral cancer causation has yet to be elucidated. Lysophosphatidic acid (LPA) augments epithelial mesenchymal transition (EMT) and development of various cancer cells. However, a detailed mechanistic explanation for LPA-induced EMT and the effects of EMT-promoting conditions on oral squamous cell carcinoma development remain elusive. In the present study, a quantitative reverse transcription polymerase chain reaction was used to analyze TWIST1, Slug, E-cadherin, and glyceraldehyde-3-phosphate dehydrogenase (GAPDH) transcript expression. Immunoblotting was used to analyze TWIST1, Slug, E-cadherin, and GAPDH protein expression. siRNAs were used to silence TWIST1 and Slug transcript expression. A matrigel-coated in vitro invasion insert was used to analyze oral cancer cell invasion. The results of the present study show that the expression levels of TWIST1 and Slug, which are EMT factors, were increased by LPA treatment in YD-10B oral squamous cell carcinoma. Conversely, E-cadherin expression was significantly reduced. In addition, transfection of the cells with TWIST1 and Slug siRNA strongly inhibited LPA-induced oral cancer cell invasion. The present study shows that TWIST1 and Slug mediate LPA-induced oral cancer cell EMT and invasiveness. The present study confirmed the mechanism by which LPA promotes oral cancer cell development, with TWIST1 and Slug providing novel biomarkers and promising therapeutic targets for oral cancer cell development.

외식업체 영양정보표시에 따른 소비자태도, 이용동기, 건강관심도, 만족도, 재방문의도와의 구조적 관계 (Structural Relationship among Consumer Attitude, Usage Motive, Health-consciousness, Satisfaction, and Revisit Intent Pursuant to Foodservice Nutrition Information Labeling System)

  • 이종호
    • 한국조리학회지
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    • 제23권5호
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    • pp.129-139
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    • 2017
  • The necessity of selecting food based on correct information through nutrition ingredients included in the food is being emphasized due to the recent increase in interest of restaurant users in healthy and safe food. This study verified the structural causal relationship among consumer attitude, use reason and health-consciousness regarding nutrition information labeling and their satisfaction and revisit intent. A total of 266 surveys conducted over restaurant users residing in the Busan area was used for the final analysis of the study to attain this study's objective. The suitability of the Structural Equation Modeling and organic causation relationship was verified through the statistics programs SPSS (V 23.0) and AMOS (V 21.0) in order to attain this study's objective, and the control effect of age has been verified. The results showed that a meaningful causal relationship was confirmed in all elements excluding consumer attitude. A control effect was also confirmed in the influential relationship between use reason and satisfaction level. The results of the study suggested that the nutrition information labeling system of restaurants provides practical implications and marketing strategies for restaurant managers and government policy makers.