• 대한지구과학교육학회지
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• 제14권2호
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• pp.159-172
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• 2021

이 연구는 온라인 과학 수업에서 실험 활동과 상호작용의 개선을 위한 수업 전략을 계획하고 그 결과를 바탕으로 개선 방안을 제시한 실행연구이다. 이를 위해 2020년 7월7일부터 9월 9일까지 G광역시에 위치한 초등학교 6학년 학생 20명을 대상으로 '지구와 달' 단원 수업을 실행하였다. 수업을 위해 실험 활동 범주에서 스마트 기기와 대체 실험, 상호작용 범주에서 온라인 대화방과 질의응답 전략을 계획하였다. 수집한 자료 중 수업 활동지, 과제물, 성찰 일지, 온라인 대화 내용, 질의응답 내용을 주요 자료로 하여 매트릭스에 입력하고 분석적 텍스트를 작성하여 그 의미를 분석하였다. 실행 결과 스마트 기기와 대체 실험은 탐구의 기회를 제공하였으나 오개념 형성에 대한 위험이 있었고 실험 활동을 방해하기도 하였다. 온라인 대화방과 질의응답은 소통의 기회와 과학 개념의 점검과 피드백 기회를 제공하였다. 본 실행연구를 통해 연구자는 수업 반성 노트를 작성하며 수업을 반성할 수 있었고, 과학 수업의 효과성과 효율성 측면에서 스마트 기기의 역할을 제안하였다.

• 한국중재학회지:중재연구
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• 제27권4호
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• pp.199-222
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• 2017

Currently, many punitive damages (or statutory damages) and class action laws are discussed in relation to the consumer damage relief system. It is in the background of the argument that the introduction of such a victim relief system will solve many small and large consumer damages. There are many cases in which the punitive damages compensation or the class action system are introduced in relation to the food safety damage naturally. Although the introduction of such a system can clearly help the consumer to relieve large-scale damage, it can not solve all the problems at once because the company can reject the system despite the introduction of such a system. In particular, class action lawsuits should have the same type of damage, but most of the damage caused by food safety is accompanied by physical harm, resulting in various complications such as the physical characteristics of the victim, the health environment. The class action system may not provide a solution in that the content and type of the damage may be different. In this regard, this study aims to investigate the introduction of the food safety damage relief system through the introduction of an administrative dispute settlement system by an administrative agency that occupies an absolute position in the existing consumer protection from this point of view. In reality, the Food and Drug Administration, which is the largest among government agencies related to food, operates a passive attitude consumer protection system such as function like guidance, supervision and surveillance. And it is necessary to make a complementary proposal. In the current law, there is only a small part of the consumer protection work that is positively legal, and even after the damage is scientifically identified, it is not possible to present the solution to the damage suffered by the consumer through legislation. This is a fact that has been raised. In this paper, we propose a reasonable and rapid disaster relief procedure through a separate mechanism within the administrative agency, which is the administration agency, that the dispute settlement procedure due to food safety damage is insufficient by solving the case through the court through counseling, dispute adjustment and civil proceedings. In order to solve the problem of food insecurity and the food industry, various ways of rational solution of the problem were considered. The possibility of (1) Establishment of a food safety dispute resolution committee; (2) Establishment of a food safety disaster relief committee; and (3) Establishment of a food safety disaster relief committee was discussed. In addition, a plan for the creation of a food damage compensation fund was also proposed.

• 간호행정학회지
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• 제18권4호
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• pp.442-451
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• 2012

Purpose: The purpose of this study was to identify effects of action learning approaches on learning outcomes of students taking nursing management courses. Methods: The questionnaire surveys were completed between March 2011 and June 2012 by 109 undergraduate seniors in the nursing department of C University. Survey data were obtained 3 times: before, in and after the study of nursing management. The course consisted of lectures and clinical practices. Learning outcomes were measured through problem solving skills, team efficacy, and class satisfaction. Collected data were analyzed using repeated measures ANOVA with the SPSS 20.0 program Results: Scores for problem solving skills (F=13.67, p<.001) and team efficacy (F=4.49, p=.012) showed statistically significant increases after the course. The scores also increased significantly after the lectures for 5 of 9 problem solving skill subscales: analysis skill, divergent thinking, decision making, assessment, feedback, and after the clinical practices for 2 subscales: divergent thinking, and execution and risk taking. Class satisfaction score also increased after both the lectures and the clinical practices. Conclusion: The findings from this study suggest that an action learning approaches for nursing management courses would be a useful teaching and learning method to achieve learning outcomes.

• 대한전기학회논문지
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• 제37권4호
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• pp.220-225
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• 1988

A class of adaptive controllers with integral action is proposed, which may riject the offset due to any load disturbance on the plant. Effective integral action and robust identification against the offset can be achieved via the zero-gain predictor. The system is improved, in this paper, to be of more generalized structure, and the detuning control weight which can cope with nonminimum-phase systems is tuned on-line. Discrete-time versions of the improved system are developed, which may be more flexible for the choice of the design parameters. The resulting control systems may also be shown to be robust to the unmodelled dynamics.

• East Asian mathematical journal
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• 제37권2호
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• pp.245-262
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• 2021

This study describes a sixth-grade teacher's professional development journey through action research for improving students' responses in a mathematics class. In the action research, the influence a teacher's questioning tactics would have on students' ability to determine answer reasonability to mathematics problems was investigated. Drawing on qualitative analysis of the teacher's lessons, reflection journal and interviews as well as the classroom students' questionnaires and interviews, this study examines how action research can affect the teacher and the classroom students. The results suggest the popularization of action research among teachers by teacher training and development programs showing the positive changes in the teacher's performance leading to improved student responses.

• 대한수학회지
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• 제46권2호
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• pp.363-447
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• 2009

The author previously defined the spectral invariants, denoted by $\rho(H;\;a)$, of a Hamiltonian function H as the mini-max value of the action functional ${\cal{A}}_H$ over the Novikov Floer cycles in the Floer homology class dual to the quantum cohomology class a. The spectrality axiom of the invariant $\rho(H;\;a)$ states that the mini-max value is a critical value of the action functional ${\cal{A}}_H$. The main purpose of the present paper is to prove this axiom for nondegenerate Hamiltonian functions in irrational symplectic manifolds (M, $\omega$). We also prove that the spectral invariant function ${\rho}_a$ : $H\;{\mapsto}\;\rho(H;\;a)$ can be pushed down to a continuous function defined on the universal (${\acute{e}}tale$) covering space $\widetilde{HAM}$(M, $\omega$) of the group Ham((M, $\omega$) of Hamiltonian diffeomorphisms on general (M, $\omega$). For a certain generic homotopy, which we call a Cerf homotopy ${\cal{H}}\;=\;\{H^s\}_{0{\leq}s{\leq}1}$ of Hamiltonians, the function ${\rho}_a\;{\circ}\;{\cal{H}}$ : $s\;{\mapsto}\;{\rho}(H^s;\;a)$ is piecewise smooth away from a countable subset of [0, 1] for each non-zero quantum cohomology class a. The proof of this nondegenerate spectrality relies on several new ingredients in the chain level Floer theory, which have their own independent interest: a structure theorem on the Cerf bifurcation diagram of the critical values of the action functionals associated to a generic one-parameter family of Hamiltonian functions, a general structure theorem and the handle sliding lemma of Novikov Floer cycles over such a family and a family version of new transversality statements involving the Floer chain map, and many others. We call this chain level Floer theory as a whole the Floer mini-max theory.

• 한국통신학회논문지
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• 제40권11호
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• pp.2284-2290
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• 2015

다양한 외형 변화를 가지는 물체의 범주 인식성능을 향상 시키는데 있어서 사람의 행동은 매우 효과적인 컨텍스트 정보이다. 본 연구에서는 Bayesian 접근법을 기반으로 하는 간단한 확률 그래프 모델을 통해 사람의 행동을 물체 범주 인식을 위한 컨텍스트 정보로 활용하였다. 다양한 외형의 컵, 전화기, 가위 그리고 스프레이 물체에 대해 실험을 수행한 결과 물체의 용도에 대한 사람의 행동을 인식함으로써 물체 인식 성능을 8%~28%개선할 수 있었다.

• 대한가정학회지
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• 제41권10호
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• pp.15-30
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• 2003

This case study analyses the process to redress consumer damages caused by advertising solution error of Samsung mall from July 30th, 2002. We could discover the typical characteristics of small damages for many people and propose efficient consumer redress system. It was very difficult for consumers to recognize and verify their damages. Damages were very diverse and had traits of electronic transactions. We also examined the evaluations of individual consumer and consumer organization, YMCA on the process and result of consumer redress. Class action should be introduced as soon as possible to overcome financial problem and gathering plaintiffs for lawsuit. Consumer organizations need more professional negotiation ability.

• 대한수학회논문집
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• 제35권4호
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• pp.1299-1307
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• 2020

We show that the Liechti-Strenner's example for the closed nonorientable surface in [13] minimizes the dilatation within the class of pseudo-Anosov homeomorphisms with an orientable invariant foliation and all but the first coefficient of the characteristic polynomial of the action induced on the first cohomology nonpositive. We also show that the Liechti-Strenner's example of orientation-reversing homeomorphism for the closed orientable surface in [13] minimizes the dilatation within the class of pseudo-Anosov homeomorphisms with an orientable invariant foliation and all but the first coefficient of the characteristic polynomial p(x) of the action induced on the first cohomology nonpositive or all but the first coefficient of p(x)(x ± 1)², p(x)(x² ± 1), or p(x)(x² ± x + 1) nonpositive.

• 한국중재학회지:중재연구
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• 제21권1호
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• pp.73-86
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• 2011

Today's arbitrations see themselves as the most effective scheme for dispute resolution in a variety of transactional context. While some kind of ADR system was already introduced in Korea as of 2007 with revision of the Consumer Basic Law, consumers' needs in dispute resolution remain unmet. Recently one consumer arbitration case divides the U.S. Supreme Court. Of course, the result of the case is expected to affect tens of millions of arbitration agreements in the States which has the most developed scheme in consumer arbitrations. While Arbitration clauses in adhesion contracts are not automatically held to be substantively unconscionable, Class action waivers are one of the most controversial issues in consumer arbitration. In this study, with the theoretical background of consumer arbitrations general, and contractual defenses against adhesive contracts, reviewed are U.S. federal courts' attitudes toward certain consumer arbitration agreements including the class arbitration waiver. Moreover, several issues in AT&T case are examined for practical implications for consumer dispute resolution. All of these are expected to initiate further research to find some guidelines for the proper status and operation of consumer arbitration here in Korea.