• Title/Summary/Keyword: Operational definitions

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Operational Definitions of Colorectal Cancer in the Korean National Health Insurance Database

  • Hyeree Park;Yu Rim Kim;Yerin Pyun;Hyundeok Joo;Aesun Shin
    • Journal of Preventive Medicine and Public Health
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    • v.56 no.4
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    • pp.312-318
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    • 2023
  • Objectives: We reviewed the operational definitions of colorectal cancer (CRC) from studies using the Korean National Health Insurance Service (NHIS) and compared CRC incidence derived from the commonly used operational definitions in the literature with the statistics reported by the Korea Central Cancer Registry (KCCR). Methods: We searched the MEDLINE and KoreaMed databases to identify studies containing operational definitions of CRC, published until January 15, 2021. All pertinent data concerning the study period, the utilized database, and the outcome variable were extracted. Within the NHIS-National Sample Cohort, age-standardized incidence rates (ASRs) of CRC were calculated for each operational definition found in the literature between 2005 and 2019. These rates were then compared with ASRs from the KCCR. Results: From the 62 eligible studies, 9 operational definitions for CRC were identified. The most commonly used operational definition was "C18-C20" (n=20), followed by "C18-C20 with claim code for treatment" (n=3) and "C18-C20 with V193 (code for registered cancer patients' payment deduction)" (n=3). The ASRs reported using these operational definitions were lower than the ASRs from KCCR, except for "C18-C20 used as the main diagnosis." The smallest difference in ASRs was observed for "C18-C20," followed by "C18-C20 with V193," and "C18-C20 with claim code for hospitalization or code for treatment." Conclusions: In defining CRC patients utilizing the NHIS database, the ASR derived through the operational definition of "C18-C20 as the main diagnosis" was comparable to the ASR from the KCCR. Depending on the study hypothesis, operational definitions using treatment codes may be utilized.

An Integrative Literature Review of Resilience in Adult Children of Alcoholics: Focusing on Operational Definitions and Moderators (알코올 중독자 성인자녀의 극복력에 대한 통합적 문헌고찰: 조작적 정의와 조정변수 중심으로)

  • Kim, Hee Kyung;Ko, Yoonwoo
    • Journal of Korean Academy of Psychiatric and Mental Health Nursing
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    • v.28 no.1
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    • pp.50-63
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    • 2019
  • Purpose: The objective of this study was to explore operational definitions and moderators of the resilience of adult children of alcoholics (ACOA) and its associated variables. Methods: This integrative review was conducted based on a literature review method suggested by Whittemore and Knafl. Databases including PubMed, CINAHL, PsycINFO, and RISS were searched using the combinations of search terms such as; 'adult children of alcoholics,' 'parental alcoholism,' 'resilience,' and 'children of alcoholics.' Results: Seventeen studies were selected for this review. Findings of integrative reviews reported operational definitions for the resilience of ACOA and moderators. The operational definition of ACOA's resilience is: (1) having no behavioral and emotional problem, (2) meeting social and developmental expectancies, (3) having the ability to cope with adversity, (4) having high self-concept, and (5) having a meaningful relationship. In addition, the varying environmental moderators include family communication, qualities of caring environment, parental communication, parentification, and social support. Several moderators were identified as positive effect, self-esteem, alcohol-specific coping style, locus of control, spirituality, the image of God, and dyadic cohesion in marital communication. Conclusion: Our study findings emphasize comprehensive understanding of diverse definition of resilience and moderators in developing nursing interventions to promote resilience in ACOA.

An Analysis of the Characteristics of Definitions and Exploration the Levels of Definitions in Mathematics Textbooks - In the Area of Geometry - (수학교과서에서 사용하는 정의의 특성 분석과 수준 탐색 - 기하 영역을 중심으로 -)

  • Cho, Young-Mi
    • School Mathematics
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    • v.4 no.1
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    • pp.15-27
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    • 2002
  • The purpose of this thesis is, through analysing the characteristics of the definitions in Korean school mathematics textbooks, to explore the levels of them. Definitions use din academic mathematics are rigorous. But they should be transformed into various types, which are presented in school mathematics textbooks, with didactical purposes. In this thesis we investigated such types of transformation. With the result of this investigation we tried to identify the levels of the definitions in school mathematics textbooks. We tried to construct, with consideration about methods of definition, frame for analysing the types of the definitions in school mathematics. Methods of definition are classified as connotative method, denotative method, and synonymous method. Especially we identified that connotative method contains logical definition, genetic definition, relational definition, operational definition, and axiomatic definition. With these analyses we made a frame for investigating the characteristics of the definitions in school mathematics textbooks. With this frame we identified concrete types of transformations of methods of definition. We tried to analyse this result with van Hieles' theory about let·els of geometry learning and the mathematical language levels described by Freudenthal, and identify the levels of definitions in school mathematics. We showed the levels of definitions in the geometry area of the Korean school mathematics.

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Exploring Students Competencies to be Creative Problem Solvers With Computational Thinking Practices

  • Park, Young-Shin;Park, Miso
    • Journal of the Korean earth science society
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    • v.39 no.4
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    • pp.388-400
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    • 2018
  • The purpose of this study was to explore the nine components of computational thinking (CT) practices and their operational definitions from the view of science education and to develop a CT practice framework that is going to be used as a planning and assessing tool for CT practice, as it is required for students to equip with in order to become creative problem solvers in $21^{st}$ century. We employed this framework into the earlier developed STEAM programs to see how it was valid and reliable. We first reviewed theoretical articles about CT from computer science and technology education field. We then proposed 9 components of CT as defined in technology education but modified operational definitions in each component from the perspective of science education. This preliminary CTPF (computational thinking practice framework) from the viewpoint of science education consisting of 9 components including data collection, data analysis, data representation, decomposing, abstraction, algorithm and procedures, automation, simulation, and parallelization. We discussed each component with operational definition to check if those components were useful in and applicable for science programs. We employed this CTPF into two different topics of STEAM programs to see if those components were observable with operational definitions. The profile of CT components within the selected STEAM programs for this study showed one sequential spectrum covering from data collection to simulation as the grade level went higher. The first three data related CT components were dominating at elementary level, all components of CT except parallelization were found at middle school level, and finally more frequencies in every component of CT except parallelization were also found at high school level than middle school level. On the basis of the result of CT usage in STEAM programs, we included 'generalization' in CTPF of science education instead of 'parallelization' which was not found. The implication about teacher education was made based on the CTPF in terms of science education.

Definition of Medical Drug Administration Cost and Development of Its Costing Model under the Korean Medical Insurance Fee-for-Service System (의료보험 의약품 관리원가의 정의 및 산정모형 개발)

  • 황인경
    • Health Policy and Management
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    • v.9 no.1
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    • pp.1-29
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    • 1999
  • The Government has recently planned to improve the medical insurance drug price systems by removing the drug margin occurring from the difference between the official and purchasing prices, and instead by setting prices through adding drug administration casts calculated to the purchasing costs. In the circumstances, the major policy and implementing issues are how to define the drug administrance cost and how to calculate them. This study attempts to provide for the conceptional and operational definitions and thereby develop a costing model for the cost. The relationship between the current systems of medical services costs and prices were reviewed to define the concept of the costs. The study defined the costs from the narrow and wide prospective of meaning, and three operational definitions were provided. The costing model was developed applying the departmental costing principles. Finally, several prerequisites that have to be considered for the implementation of the definition and the model from the practical viewpoint.

A Study on the Definitions Presented in School Mathematics (학교수학 교과서에서 사용하는 정의에 관한 연구)

  • 우정호;조영미
    • Journal of Educational Research in Mathematics
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    • v.11 no.2
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    • pp.363-384
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    • 2001
  • The purpose of this thesis is, through analysing the characteristics of the definitions in Korean school mathematics textbooks, to explore the levels of them and to make suggestions for definition - teaching as a mathematising activity, Definitions used in academic mathematics are rigorous. But they should be transformed into various types, which are presented in school mathematics textbooks, with didactical purposes. In this thesis we investigated such types of transformation. With the result of this investigation we tried to identify the levels of the definitions in school mathematics textbooks. And in school mathematics textbooks there are definitions which carry out special functions in mathematical contexts or situations. We can say that we understand those definitions, only if we also understand the functions of definitions in those contexts or situations. In this thesis we investigated the cases in school mathematics textbooks, when such functions of definition are accompanied. With the result of this investigation we tried to make suggestions for definition-teaching as an intellectual activity. To begin with we considered definition from two aspects, methods of definition and functions of definition. We tried to construct, with consideration about methods of definition, frame for analysing the types of the definitions in school mathematics and search for a method for definition-teaching through mathematization. Methods of definition are classified as connotative method, denotative method, and synonymous method. Especially we identified that connotative method contains logical definition, genetic definition, relational definition, operational definition, and axiomatic definition. Functions of definition are classified as, description-function, stipulation-function, discrimination-function, analysis-function, demonstration-function, improvement-function. With these analyses we made a frame for investigating the characteristics of the definitions in school mathematics textbooks. With this frame we identified concrete types of transformations of methods of definition. We tried to analyse this result with van Hieles' theory about levels of geometry learning and the mathematical language levels described by Freudenthal, and identify the levels of definitions in school mathematics. We showed the levels of definitions in the geometry area of the Korean school mathematics. And as a result of analysing functions of definition we found that functions of definition appear more often in geometry than in algebra or analysis and that improvement-function, demonstration-function appear regularly after demonstrative geometry while other functions appear before demonstrative geometry. Also, we found that generally speaking, the functions of definition are not explained adequately in school mathematics textbooks. So it is required that the textbook authors should be careful not to miss an opportunity for the functional understanding. And the mathematics teachers should be aware of the functions of definitions. As mentioned above, in this thesis we analysed definitions in school mathematics, identified various types of didactical transformations of definitions, and presented a basis for future researches on definition teaching in school mathematics.

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A Review of Research on Evaluation Indexes and Determinants of Organizational Effectiveness of Hospital Nursing Organizations (병원 간호조직의 조직유효성 평가지표 및 결정요인에 관한 문헌 분석)

  • Kim, Jieun;Kim, Jinhyun
    • Perspectives in Nursing Science
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    • v.11 no.1
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    • pp.49-62
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    • 2014
  • Purpose: The purpose of this study was to review journal articles, master's theses, and doctoral dissertations on organizational effectiveness in hospital nursing organizations in order to identify evaluation indexes, determinants, and overall trends and to suggest strategies for improvements. Methods: A total of forty-one papers on organizational effectiveness in hospital nursing organizations were reviewed. Results: These papers were journal articles, master's theses and doctoral dissertations regarding nurses who worked in general hospitals and university hospitals, excluding special hospitals (ie. armed forces hospitals, mental hospitals). The review of literature identified 18 operational definitions (evaluation indexes) and 36 significant determinants of organizational effectiveness in hospital nursing organizations. The operational definitions were measured by using 46 instruments. Conclusion: The study findings provide data on recent trends in organizational effectiveness; it also serves as basic evidence for the need to improve organizational effectiveness in hospital nursing organizations as well as indicates directions for future research.

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Teachers' conceptual errors related to the definitions in the area of geometry of elementary school mathematics (초등수학 도형영역에 제시된 정의에 관한 교사의 인식과 오류)

  • Choi, Keun-Bae;Oh, Suk-Kyoung
    • The Mathematical Education
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    • v.47 no.2
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    • pp.197-219
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    • 2008
  • Unlike ordinary situations, deifinitions play a very important role in mathematics education in schools. Mathematical concepts have been mainly acquired by given definitions. However, according to didactical intentions, mathematics education in schools has employed mathematical concepts and definitions with less strict forms than those in pure mathematics. This research mainly discusses definitions used in geometry (promising) course in primary schools to cope with possibilities of creating misconception due to this didactical transformation. After analyzing problems with potential misconceptions, a survey was conducted $\underline{with}$ 80 primary school teachers in Jeju to investigate their recognitions in meaning of mathematical concepts in geometry and attitudes toward teaching. Most of the respondents answered they taught their students while they knew well about mathematical definitions in geometry but the respondents sometimes confused mathematical concepts of polygons and circles. Also, they were aware of problems in current mathematics textbooks which have explained figures in small topics (classes). Here, several suggestions are proposed as follows from analyzing teachers' recognitions and researches in mathematical viewpoints of definitions (promising) in geometric figures which have been adopted by current mathematics textbooks in primary schools from the seventh educational curriculum. First, when primary school students in their detailed operational stage studying figures, they tend to experience $\underline{a}$ collision between concept images acquired from activities to find out promising and concept images formed through promising. Therefore, a teaching method is required to lessen possibility of misconceptions. That is, there should be a communication method between defining conceptual definitions and Images. Second, we need to consider how geometric figures and their elements in primary school textbooks are connected with fundamental terminologies laying the foundation for geometrical definitions and more logical approaches should be adopted. Third, the consistency with studying geometric figures should be considered. Fourth, sorting activities about problems in coined words related to figures and way and time of their introductions should be emphasized. In primary schools mathematics curriculum, geometry has played a crucial role in increasing mathematical ways of thoughts. Hence, being introduced by parts from viewpoints of relational understanding should be emphasized more in textbooks and teachers should teach students after restructuring this. Mathematics teachers should help their students not only learn conceptual definitions of geometric figures in their courses well but also advance to rigid mathematical definitions. Therefore, that's why mathematics teachers should know meanings of concepts clearly and accurately.

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Operational Experience in DB "TERMIN"

  • Shaburova, Natalya N.
    • Journal of Information Science Theory and Practice
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    • v.7 no.3
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    • pp.21-30
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    • 2019
  • Information about the formation and filling (in 2014 to 2016) of a terminological dictionary on electronics and radioengineering and collective work (in 2017 to 2018) with a data bank "TERMIN" is presented in this article. In purpose of creating an instrument of navigating the modern scientific-technical space a net of terms with set semantic links is described. This set is based on the analysis of terms' definitions (each term is checked for inclusion in the definitions of all other terms; the definitions were borrowed from reputable reference editions: encyclopedias, dictionaries, reference books). The created model of a system that consists of different information sources, in which it (information) is indexed by the terminology of Russian State Rubricator of Scientific and Technical Information rubrics and/or keywords, is described. There is an access for the search in all these sources in the system. Searching inquiries are referred to in the language of these rubrics or formulated by arbitrary terms. The system is to refer to information sources and give out relevant information. In accordance with this model, semantic links of various types, which allow expanding a search at different modalities of query, should be set among data bank terms. Obtained links will have to increase semantic matching, i.e., they can provide actual understanding of the meaning of the information that is being sought.

Firms' Characteristics between Highly Successful and Less Successful Venture Business (우량.비우량 벤처비즈니스의 기업특성)

  • Choi Sang-Ryul;Roh Hyun-Sub
    • Management & Information Systems Review
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    • v.6
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    • pp.163-186
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    • 2001
  • A venture business plays important roles in the economy of a developing nation. It makes highly value-added product, increases employment and improves the industry structure. The objective of this study is to derive the financial and non-financial characteristics from venture businesses, which determine a highly successful business group or a less successful business group. The firm characteristics are composed of 21 financial(liquidity, leverage, cash flow, activity, productivity, and etc) and 34 non-financial characteristics(manager, technology, marketability and credibility variables), which have been considered as the key characteristics for venture business by the existing literature. All financial ratios and non-financial characters play a role of making discriminations between a highly successful and a less successful group. Because there are not generally accepted definitions, classifying a highly successful and a less successful venture business is a very difficult problem. Operational definitions have many problems but we have no choice in current stage.

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