• 제목/요약/키워드: cognitive science

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노인의 인지기능 평가 및 관련요인 (Assesssment and Related factors on Cognitive Function in The Elderly)

  • 강점덕
    • 대한물리치료과학회지
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    • 제7권2호
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    • pp.495-502
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    • 2000
  • Objectives: The aim of this study was to analyze the effect assesssment and related factorson cognitive function in the Elderly. Methods: Korean version of MMSE-K was tested for 40normal in the Elderly in July 15-20 2000. Their ages were 65 or more in years. Results: Age, sex, marriage and education had significant effects on the MMSE-K scores(P<.05). MMSE-K as follow definite dementia$(\geq24)$ is 47.5%, definite non-dementia$(\leq19)$ is 40.0%, and questionable dementia(20-23) is 12.5% in distributions for cognitive function, respectively. Conclusions: Results indicated that age is increased and female at onset had high cognitive functions.

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아동, 예비교사, 중견교사의 과학지식, 과학적 탐구능력, 인지 수준의 비교 (A Comparison of Preservice and Inservice Elementary Teachers' and Children's Scientific Knowledge, Scientific Inquiry Skills and Cognitive Abilities)

  • 김효남
    • 한국과학교육학회지
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    • 제15권1호
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    • pp.68-72
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    • 1995
  • This is very important to know teachers' and children's scientific knowledge, scientific inquiry skills and cognitive abilities for better education of children. The subjects of this study are about 60-150 in each group. There are instruments used ; To test scientific knowledge a test is developed by the author. To test scientific inquiry skills, the test developed by Eun Kyung Yong is used. To test cognitive abilities, GALT, short version is used. There are results; Firstly, inservice teachers' scientific knowledge is better than preservice teachers', which is better than children'. Secondly, inservice teachers' scientific inquiry skills nearly equal preservice teachers', which are better than children'. Thirdly, preservice teachers' cognitive abilities nearly equal inservice teachers', which are better than children'. Fourthly, teachers' (special area-science) cognitive abilities are better than teachers' (special area-vidual art, music, physical education). Elementary teachers in Korea have fundamental abilities to teach elementary children.

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Conceptual understanding of the relationship between consciousness, memory, and attention

  • 김은숙;신현정
    • 한국인지과학회:학술대회논문집
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    • 한국인지과학회 2010년도 춘계학술대회
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    • pp.13-17
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    • 2010
  • Consciousness is really regarded as too ambiguous a concept to be understood and accepted as a mental construct without the inclusion of memory and attention in any conceptualization. However we need one criterion to count satisfactorily as an explanation of consciousness in information processing. An operational working definition of consciousness could be made in comparison of memory and attention: Consciousness would be a subjective awareness of momentary experience and also have the characteristics of an operating system performing control and consolidation information processing. This could be called a cognitive consciousness. It is possible that some distinctions between consciousness, memory and attention can be made conceptually and functionally from the perspectives of information processing.

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한국어 표준 발음 IPA 변환기 (IPA Converter of Korean Standard Pronunciation)

  • 이은정;강미영;윤애선;권혁철
    • 한국인지과학회:학술대회논문집
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    • 한국인지과학회 2005년도 춘계학술대회
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    • pp.206-211
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    • 2005
  • 한국어의 발음은 형태${\cdot}$음운론적 환경에 따라 다양하게 변화하므로 혼란을 일으키는 경우가 많다. 이에 표준발음법을 바탕으로 올바른 발음을 제시하는 한국어 표준 발음 변환기를 구현한다. 특히 본 논문에서는 세계적으로 널리 쓰이는 IPA를 활용하여 발음열을 생성해, 한국어 발음의 미세한 차이까지 표기하고, 모국어 화자뿐만 아니라 외국인 학습자들도 대상으로 하기에 적합하도록 하였다. 형태소 분석 정보, 어절 간 영향 정보 등을 활용하여 발음열 생성하였고. 발음열 생성 정확도는 98.09%였다.

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Efficient Joint Resource Allocation for OFDM-Based Cooperative Cognitive Radio Networks with Rate-Guarantee

  • Yang, Xuezhou;Tang, Wei;Guo, Wei
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • 제8권9호
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    • pp.3004-3015
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    • 2014
  • This letter proposes an efficient joint resource allocation scheme for OFDM-based cooperative cognitive radio networks (CRNs) under various practical limitations. Compared with those traditional approaches, which guarantee the transmission rates of cognitive users, the proposed scheme ensures that cognitive users are maintained in proportion to the predefined target rates. Numerical simulation shows that the proposed scheme can achieve a reasonable tradeoff between performance and computational complexity.

운동·인지 이중과제 프로그램이 경도인지장애 노인의 인지기능 및 우울에 미치는 영향 (The Effects of Exercise-Cognitive Combined Dual-Task Program on Cognitive Function and Depression in Elderly with Mild Cognitive Impairment)

  • 김경아;김옥수
    • 성인간호학회지
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    • 제27권6호
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    • pp.707-717
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    • 2015
  • Purpose: This study was to develop and verify the effects of the exercise-cognitive combined dual-task training program on cognitive function and depression of the elderly with mild cognitive impairment (MCI). Methods: A non-equivalent control group pretest-posttest design was used. The participants were assigned into two groups: an experimental group receiving an exercise-cognitive combined dual-task (n=20) and a control group receiving a simple-task (n=18). After 8 weeks of intervention (2 days per week), the change in depression and cognitive functions were compared between the groups. Results: General cognitive function (t=-2.81, p=.011), frontal cognitive function (Z=-3.50, p<.001), attention/working memory function (U=-2.91, p=.004), depression (t=4.96, p<.001) of the experimental group were significantly increased than those of the control group. Conclusion: The findings of the study showed that an exercise-cognitive combined dual-task program for MCI was effective in improving general cognitive function, frontal and executive function, attention/working memory function, and reducing depression.

신제품개발에서 마케팅-연구개발간 인지적 및 감정적 갈등 (Cognitive and Affective Conflict between Marketing and R&D in New Product Development)

  • 조은성;한민희;현용진
    • 경영과학
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    • 제28권2호
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    • pp.75-92
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    • 2011
  • This study investigates how cognitive and affective conflict affect performance and social outcomes in the new product situation. We examine the corporate, project, and personal characteristics that determine the level of inter-functional conflict between marketing and R&D. From a survey of Korean high-tech companies, we found : (1) time pressure was positively related to cognitive and affective conflict, (2) joint reward systems, interdepartmental connectedness, and years of education were negatively associated to cognitive conflict, (3) while cognitive conflict was positively related to new product creativity and NPD performance, affective conflict was negatively associated to marketing-R&D integration and perceived effectiveness of the relationship, as well as new product creativity and NPD performance.

A Power Allocation Algorithm Based on Variational Inequality Problem for Cognitive Radio Networks

  • Zhou, Ming-Yue;Zhao, Xiao-Hui
    • Journal of Information Processing Systems
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    • 제13권2호
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    • pp.417-427
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    • 2017
  • Power allocation is an important factor for cognitive radio networks to achieve higher communication capacity and faster equilibrium. This paper considers power allocation problem to each cognitive user to maximize capacity of the cognitive systems subject to the constraints on the total power of each cognitive user and the interference levels of the primary user. Since this power control problem can be formulated as a mixed-integer nonlinear programming (NP) equivalent to variational inequality (VI) problem in convex polyhedron which can be transformed into complementary problem (CP), we utilize modified projection method to solve this CP problem instead of finding NP solution and give a power control allocation algorithm with a subcarrier allocation scheme. Simulation results show that the proposed algorithm performs well and effectively reduces the system power consumption with almost maximum capacity while achieve Nash equilibrium.

대규모 인지 시스템을 위한 정성적 지식 모델의 개발 (A Qualitative Knowledge Model for Large Scale Cognitive System)

  • 김현경
    • 인지과학
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    • 제15권4호
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    • pp.15-20
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    • 2004
  • 유연성과 광범위성을 갖는 대규모 인지 시스템의 구축을 위해서는 전문적인 지식 뿐 아니라 상식 수준의 지식을 포함한 대용량 지시베이스의 구축이 필수 불가결하다. 이를 위해서는 효율적인 지식 표현 및 추론 기법이 핵심적 열할을 하게 될 것이다. 본 논문에서는 정성적 지식 표현 및 추론 기법을 이미 구축된 범용의 대용량 Cyc 지식베이스와 접목하여, 일상의 상식적인 추론을 제공할 수 있는 인지 시스템을 소개한다. 본 시스템은 구현되어 여러 예제에 적용되어 그 실효성을 입증한 수 있었다.

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