• 제목/요약/키워드: Definition of science term

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우리말 시소러스 작성(作成)에 관한 연구(硏究) (A Study on Constructing Korean Language Thesaurus)

  • 김태중
    • 정보관리연구
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    • 제21권1호
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    • pp.53-75
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    • 1990
  • 정보검색(情報檢索)시스템에서 통제어휘(統制語彙)는 재현율을 높이고 색인자(索引者) 또는 이용자(利用者)가 적합한 용어(用語)를 선정하는데 도움을 준다. 시소러스는 통제어휘집(統制語彙集)의 한 형태로 대부분의 데이터베이스 제작자(製作者)들이 사용하고 있다. 이 연구(硏究)의 목적(目的)은 우리말 시소러스의 작성방법(作成方法)을 개발(開發)하는 것이며 다음과 같은 내용(內容)을 다루었다. 1) 시소러스의 정의(定義), 2)시소러스 작성이론(作成理論)에 관한 문헌조사(文獻調査)와 검토(檢討), 3) 실제적인 시소러스 작성방법(作成方法) 제시(提示), 4) 시소러스의 출력형태(出力形態), 5) 실험(實驗) 및 실험결과(實驗結果)

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제7차 과학과 교육과정에서 물질 개념에 대한 고찰 (Examining the Concept of Matter in the 7th National Science Curriculum)

  • 홍미영;전경문
    • 대한화학회지
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    • 제51권1호
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    • pp.65-72
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    • 2007
  • 본 연구에서는 우리나라 7차 과학과 교육과정(화학 영역)에서 물질의 의미, 입자 개념, 물질의 상태등의 내용을 살펴보았다. 교육과정에서 ‘물질'이라는 용어를 명확하게 정의하지 않은 채 material, matter, substance 등 서로 다른 의미로 혼용하고 있어 학생들이 순물질 개념을 이해하는 데 어려움을 주고 있다. 물질의 입자성에 대해서는 9학년에서 원자 개념, 10학년에서 이온 개념을 도입하기 이전에, 7학년에서 물질의 기본 단위로 분자 개념을 도입한다. 학생들이 물질의 구조에 대해 통합적으로 일관성 있게 이해할 수 있도록 각 입자 개념의 제시 순서를 재고할 필요가 있다. 상태 변화에서는 물질 보존이나 가역성 등 주요 개념들을 교육 과정에서 명시하지 않고 있으며, 다양한 입자적 관점에서의 설명을 충분히 제공하지 못한 경향이 있었다. 물질 개념은 화학에서 기본이 되므로, 이를 명확히 가르칠 것을 유념해야 할 것이다. 교육과정 개선에 대한 시사점을 논의하였다.

간호 퍼포먼스에 관한 국내 연구의 통합적 고찰 (Integrative literature review of nursing performance in Korea)

  • 조수미;이은주
    • Journal of the Korean Data and Information Science Society
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    • 제26권2호
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    • pp.441-453
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    • 2015
  • 최근 의료 서비스의 질 향상과 환자 안전에 대한 관심이 대두되면서 간호 업무수행에 대한 중요성이 증가하고 있다. 본 연구의 목적은 현재까지 수행된 간호사의 업무수행과 관련된 국내 연구들을 분석함으로써 이들 연구들의 현황 및 문제점을 조사하고 추후 연구의 발전방향을 제시하고자 시도되었다. 간호 퍼포먼스 관련 연구 33편 중 25편은 서술적 상관관계 연구였다. 간호 퍼포먼스를 측정한 도구에 있어서는 15편에서 Park (1989)의 도구 및 이를 기반으로 수정한 도구가 사용되었다. 간호 퍼포먼스에 대한 용어 사용과 정의에 있어서는 일치된 합의가 없었다. 대부분의 연구에서 간호 퍼포먼스를 리더십이나, 임파워먼트 등의 요소들에 의해 영향을 받는 결과값으로 설계하였다. 따라서 추후 연구에서는 국내 간호사의 퍼포먼스에 대한 개념적 기틀을 구축할 것을 제언하며, 간호 퍼포먼스가 의료 환경의 구조적, 과정적, 결과적 변수와는 어떠한 상호관련성을 가지는 지를 총체적으로 확인해보는 연구가 필요할 것으로 사료된다.

한국 대학도서관의 장서개발정책과 지침작성에 관한 연구 (A Study on Collection Development Policy and Guideline Establishment in the Korean University Library)

  • 류인석
    • 한국문헌정보학회지
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    • 제22권
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    • pp.109-141
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    • 1992
  • University library must have a substantial collection development policy, by which the short and long term plannings are set up to meet the goals of university education and to support university function. Only when university library organizes collection building based on the well-planned policy, can it establish the systematic collection building, which can satisfy users, support continuity of work, use budget efficiently, and solve the space problem by with-drawing the materials. But most Korean university libraries, contrary to many foreign cases, don't have proper systematic collection development policy or guideline that controls overall library work from planning the collection of materials to evaluating and preserving them. Questionaire on whether university library has collection development policy or guideline was answered positively by only 6 cases out of 57 cases, which is just 10.5 percent. Even in cases that they have a guideline, the content of the copied guideline they sent was confined to acquisition, which is just a part of collection development. Collection development is a statement needed to set up long and short term plannings in consideration of the aims of the library and the needs of users and to shape and manage the library collection systematically. With the above conception and definition, we try to make a proper collection development policy and guideline for the Korean university libraries. Here we must define the object of the university. Object of university is to have good curriculum, good courses, research activities on the part of the faculty, enlargement of graduate school, and establishment of various institutes, etc. And in guideline, selector, method of selection, level of selection and arrangement of budget, etc. must be described concretely in its contents. Since collection development policy and guideline of Korean university libraries should concern their situation, we must confer with the result of the survey and analysis on the matter of collection determination. Here the contents include the priority of materials to be collected, method of collecting materials, arrangement of budget, and others. The purpose of this study is to develop a tenative collection development guideline in reference to the Jeonju University Library by means of analyzing the guiding principle, contents of the guideline, and present conditions of the Korean university libraries. The systematic collection development based on the Guideline for Collection Development of the Korean University Library, can offer a satisfactory service to the users of the university community, and also contribute to the development of the university itself as well as the university library.

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빅 데이터의 새로운 고객 가치와 비즈니스 창출을 위한 대응 전략 (Correspondence Strategy for Big Data's New Customer Value and Creation of Business)

  • 고준철;이해욱;정지윤;강경식
    • 대한안전경영과학회지
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    • 제14권4호
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    • pp.229-238
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    • 2012
  • Within last 10 years, internet has become a daily activity, and humankind had to face the Data Deluge, a dramatic increase of digital data (Economist 2012). Due to exponential increase in amount of digital data, large scale data has become a big issue and hence the term 'big data' appeared. There is no official agreement in quantitative and detailed definition of the 'big data', but the meaning is expanding to its value and efficacy. Big data not only has the standardized personal information (internal) like customer information, but also has complex data of external, atypical, social, and real time data. Big data's technology has the concept that covers wide range technology, including 'data achievement, save/manage, analysis, and application'. To define the connected technology of 'big data', there are Big Table, Cassandra, Hadoop, MapReduce, Hbase, and NoSQL, and for the sub-techniques, Text Mining, Opinion Mining, Social Network Analysis, Cluster Analysis are gaining attention. The three features that 'bid data' needs to have is about creating large amounts of individual elements (high-resolution) to variety of high-frequency data. Big data has three defining features of volume, variety, and velocity, which is called the '3V'. There is increase in complexity as the 4th feature, and as all 4features are satisfied, it becomes more suitable to a 'big data'. In this study, we have looked at various reasons why companies need to impose 'big data', ways of application, and advanced cases of domestic and foreign applications. To correspond effectively to 'big data' revolution, paradigm shift in areas of data production, distribution, and consumption is needed, and insight of unfolding and preparing future business by considering the unpredictable market of technology, industry environment, and flow of social demand is desperately needed.

Effect of High-frequency Diathermy on Hamstring Tightness

  • Kim, Ye Jin;Park, Joo-Hee;Kim, Ji-hyun;Moon, Gyeong Ah;Jeon, Hye-Seon
    • 한국전문물리치료학회지
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    • 제28권1호
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    • pp.65-71
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    • 2021
  • Background: The hamstring is a muscle that crosses two joints, that is the hip and knee, and its flexibility is an important indicator of physical health in its role in many activities of daily living such as sitting, walking, and running. Limited range of motion (ROM) due to hamstring tightness is strongly related to back pain and malfunction of the hip joint. High-frequency diathermy (HFD) therapy is known to be effective in relaxing the muscle and increasing ROM. Objects: To investigate the effects of HFD on active knee extension ROM and hamstring tone and stiffness in participants with hamstring tightness. Methods: Twenty-four participants with hamstring tightness were recruited, and the operational definition of hamstring tightness in this study was active knee extension ROM of below 160° at 90° hip flexion in the supine position. HFD was applied to the hamstring for 15 minutes using the WINBACK device. All participants were examined before and after the intervention, and the results were analyzed using a paired t-test. The outcome measures included knee extension ROM, the viscoelastic property of the hamstring, and peak torque for passive knee extension. Results: The active knee extension ROM significantly increased from 138.8° ± 9.9° (mean ± standard deviation) to 143.9° ± 10.4° after the intervention (p < 0.05), while viscoelastic property of the hamstring significantly decreased (p < 0.05). Also, the peak torque for knee extension significantly decreased (p < 0.05). Conclusion: Application of HFD for 15 minutes to tight hamstrings immediately improves the active ROM and reduces the tone, stiffness, and elasticity of the muscle. However, further experiments are required to examine the long-term effects of HFD on hamstring tightness including pain reduction, postural improvement around the pelvis and lower extremities, and enhanced functional movement.

치매 노인의 배회행동에 관한 문헌 조사 (Review on Wandering Behavior in Persons with Dementia)

  • 홍손귀령
    • Perspectives in Nursing Science
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    • 제3권1호
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    • pp.35-45
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    • 2006
  • In Korea, about 8.3% over aged 65 are suffering from Alzheimer's disease or other type of dementia. Among dementia-related behaviors, wandering is the one of strongest factors on burden and stress of caregivers. On Lee and Kwon's report with community living persons with dementia, upto 85% of caregivers reported wandering as a problem. Wandering is a frequently encountered problem in communities and long-term care facilities, but it is among least understood dementia. related behavior. Despite the prevalence of wandering, its significant adverse outcomes, and the increase in persons with dementia in Korea, no systematic research has been conducted in Korea. The purpose of this study is to review on literature related to wandering behavior among persons with dementia. The specific topics related to wandering are included: definition, the prevalence of dementia and wandering behavior, the influencing factor on wandering, outcomes of wandering behavior, and the measurement method. Wandering is defined as "aimless walking" and "Meandering, aimless or repetitive locomotion that exposes one to harm and is incongruent with boundaries, limits, or obstacles". Wandering is viewed as a problematic behavior, however, it has to be understood as need-driven compromised behavior. For example, wandering may be an expression of searching for familiar person and/or place. Recently, in Korea, there is an effort for establishing the therapeutic environment for elders who are wanderers in long-term-care facilities. Cognitive impairment of persons with dementia is found to be a consistent factor on wandering behavior through many national and international studies. The adverse outcomes of wandering are serious problem in persons with dementia as well as their caregivers. The adverse outcomes include falls, fractures, getting lost, use of restraints, or even death. In fact, wandering is one of the major reasons for a patient to be institutionalized. For measurement of wandering behavior, two methods are broadly used: observation using stop watch, and survey form. A revised instrument of the Korean version of Algase wandering scale (K_RAWS) is established the psychometric properties (Son, Song, & Lim, 2006) demonstrating valid and reliable instrument in measuring wandering behavior among persons with dementia who are residing in communities. K_RAWS has a 39 items with six subscales including persistent walking, repetitive walking, spatial disorientation, eloping behavior, negative outcome, and mealtime impulsivity. In conclusion, studies including the prevalence of wandering behavior and predictive factors on wandering should be conducted to understand wandering clearly before developing any types of intervention.

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굿디자인(Good Design)의 재해석 - 람스(Rams)와 노만(Norman)의 굿디자인 비교를 중심으로 (The Reinterpretation of Good Design - The Comparison between Rams and Norman)

  • 김동하
    • 디자인학연구
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    • 제16권4호
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    • pp.413-422
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    • 2003
  • 20세기 초 영, 독일의 미술과 공예협회인 독일 베르크분트(Deutcher Werkbund)로부터 산업제품을 위한 디자인 표준화의 제기와 기능주의의 새로운 미를 적용하려는 노력은 시작되었다. 같은 맥락에서 1919년 독일의 바우하우스(Bauhaus)에 의해 굿디자인은 기술과 예술의 혼합에 의해 이루어진다는 현대적 개념의 디자인이 그 뒤를 이었다. 1950-1955년, 뉴욕 MOMA(Museum of Modem Art)에 의해 행해진 소비자 교육프로그램인 굿디자인(Good Design) 전시회에 의해 그 용어는 현대적으로 사용되었으며, 굿디자인의 임무는 모던디자인을 일반대중에게 인식시키는 것이었다. 20세기 후반 이후 많은 전문가들은 각기 독특한 입장에서 굿디자인을 다양하게 정의하기 시작하였다. 그 정의는 디자이너, 기술자, 생산자, 비즈니스맨, 소비자들에게 이르기까지 각 영역의 특성에 맞게 해석되어 적용될 수 있었기 때문이었다. 디자인 학자인 람스(Rams)와 노만(Norman)은 물리적, 심리적인 관점으로부터 굿디자인을 해석하고 있으며, 기능, 미, 테크놀로지, 등에 관련해 구체적으로 굿디자인의 표준과 올바른 접근방향을 언급하고 있다. 따라서 본 연구는 굿디자인의 역사적 고찰과 정의 및 람스와 노만의 주장을 비교와 분석을 통해 굿디자인의 세부적인 기준과 정의의 관계를 정립하였으며, 최종적으로 그들이 주장하는 물리적, 심리적으로 접근한 사용자 중심의 디자인이 굿디자인임을 찾고자 하였다.

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신경병증성 통증의 처리 과정에 있어 중추신경계의 가소성 변화 비교 (Comparisons of the Plastic Changes in the Central Nervous System in the Processing of Neuropathic Pain)

  • 권민지
    • 감성과학
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    • 제24권2호
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    • pp.39-48
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    • 2021
  • 국제통증연구학회(IASP)에 따르면, 신경병증성 통증은 정상 조건에서 중추신경계에 유해한 정보를 전달하는 신경계 기능 장애로 특징 지워진다. 이런 통증은 말초 혹은 중추 신경계에 확인 가능한 병변이 있는 질환과 어떠한 신경에도 병변이 없는 상태에서 발생하는 상황으로 나누어 볼 수 있다. 두 가지 상황 모두 장기적이고 만성적인 변화과정을 겪게 되며, 결과적으로 신경계가 부적절하게 적응하여 치유되기 어려운 만성통증 증후군으로 발전할 수 있다. 그러나 이러한 통증 치료는 진단에서부터 치료까지의 과정이 어려운 탓에 현재까지도 특별한 해결방안이 부족한 실정이다. 최근 자기공명영상(fMRI), 양전자방출단층촬영법(PET), 광영상(optical imaging) 등 영상분석기술이 발달함에 따라 통증을 유발할 수 있는 유해 자극에 대한 중추신경계의 반응을 영상화하는 연구가 증가하고 있다. 이러한 영상 기법들을 통해 통증을 해석하고 처리하는 뇌 영역에서 시냅스 간 가소성 변화가 일어나고 있음을 확인하였으며, 신경병증성 통증을 비롯한 만성통증과 학습과의 상호 작용을 이해하는 데 많은 도움을 주고 있다. 본 연구는 병리적 통증의 기전과 통증 자극에 따른 뇌의 구조적, 기능적 변화에 대해 최근까지 밝혀진 연구들을 소개하고자 한다. 만성적 통증의 정의와 발생기전을 되짚고 새로운 연구 동향을 살펴보는 것은 통증을 완화할 수 있는 방안을 강구하는 데 도움이 될 것으로 사료된다.

An Analytical Investigation on the Build-up of the Temperature Field due to a Point Heat Source in Shallow Coastal Water with Oscillatory Alongshore-flow

  • Jung, Kyung-Tae;Kim, Chong-Hak;Jang, Chan-Joo;Lee, Ho-Jin;Kang, Sok-Kuh;Yjm, Ki-Dai
    • Ocean and Polar Research
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    • 제25권1호
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    • pp.63-74
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    • 2003
  • The build-up of the heat field in shallow coastal water due to a point source has been investigated using an analytical solution of a time-integral form derived by extending the solutions by Holley(1969) and also presented in Harleman (1971). The uniform water depth is assumed with non-isotropic turbulent dispersion. The alongshore-flow is assumed to be uni-directional, spatially uniform and oscillatory. Due to the presence of the oscillatory alongshore-flow, the heat build-up occurs in an oscillatory manner, and the excess temperature thereby fluctuates in that course and even in the quasi-steady state. A series of calculations reveal that proper choices of the decay coefficient as well as dispersion coefficients are critical to the reliable prediction of the excess temperature field. The dispersion coefficients determine the absolute values of the excess temperature and characterize the shoreline profile, particularly within the tidal excursion distance, while the decay coefficient determines the absolute value of the excess temperature and the convergence rate to that of the quasi-steady state. Within the e-folding time scale $1/k_d$ (where $k_d$ is the heat decay coefficient), heat build-up occurs more than 90% of the quasi-steady state values in a region within a tidal excursion distance (L), while occurs increasingly less the farther we go to the downstream direction (about 80% at 1.25L, and 70% at 1.5L). Calculations with onshore and offshore discharges indicate that thermal spreading in the direction of the shoreline is reduced as the shoreline constraint which controls the lateral mixing is reduced. The importance of collecting long-term records of in situ meteorological conditions and clarifying the definition of the heat loss coefficient is addressed. Interactive use of analytical and numerical modeling is recommended as a desirable way to obtain a reliable estimate of the far-field excess temperature along with extensive field measurements.