• 한국과학교육학회지
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• 제44권2호
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• pp.179-194
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• 2024

본 연구의 목적은 초임 과학 교사가 소집단 모형구성 활동을 운영하며 어떤 인식론적 프레이밍을 보였는지 탐색하고, 연구자와 함께 수업을 설계, 진행, 성찰한 경험이 교사의 인식론적 프레이밍 변화에 어떻게 기여했는지를 이해하는 것이었다. 우리는 경력 2년 차의 초임과학 교사 1명을 사례로 연구하였다. 교사는 약 4개월간 2개 학급에서 소집단 모형구성 활동이 포함된 18차시의 수업을 운영하였으며, 교사의 수업 실행 전후에는 교사-연구자 사이의 협력적 성찰이 13회 이루어졌다. 교사의 수업 실행과 협력적 성찰은 모두 녹화 녹음되었으며 전사되어 질적으로 분석되었다. 우리는 발화 단위로 인식론과 관련된 요소들을 귀납적으로 추출하고, 이러한 발화가 일관성 있게 나타난 부분을 찾아 교사의 인식론적 프레이밍을 유추하였다. 연구 결과, 교사의 인식론적 프레이밍은 단원 초반부에 '빈칸 채우기' 프레이밍, 중반부에 '개인적 추론 구성하기' 프레이밍, 후반부에 '사회적 추론 구성하기' 프레이밍으로 각각 다르게 나타났으며, 소집단 모형구성활동에서 교사와 학생의 역할에 대한 교사의 관점이 뚜렷하게 구분되었다. 이러한 변화는 교사가 연구자와 협력하여 모형구성 수업을 계획, 진행하고 성찰하며, 학생들의 가능성과 달라진 실행을 꾸준히 관찰하면서 나타났다. '빈칸 채우기' 프레이밍에서 '개인적 추론 구성하기' 프레이밍으로의 전환에는 교사가 소집단 모형구성 활동을 운영하고 협력적 성찰하는 과정에서 학생들을 관찰하며 학생들의 능력에 대해 새로운 인식을 가지게 된 것이 중요했다. '개인적 추론 구성하기' 프레이밍에서 '사회적 추론 구성하기' 프레이밍으로의 전환에는 교사가 연구자와의 협업으로 교실에서 사회적 상호작용 장을 형성하여 협력적 지식 구성의 가치를 인식하게 된 것이 중요한 역할을 했다. 이 연구 결과는 소집단 모형구성 활동을 운영하는 교사를 지원하는 교사 교육 방안을 모색하는 데 시사점을 제공할 수 있을 것이다.

• 보건행정학회지
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• 제34권2호
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• pp.129-140
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• 2024

연구배경: 트라우마가 초래한 정신건강 문제는 사건의 특성에 따라 다르게 나타날 수 있다. 특히 성적 외상사건 경험자는 다른 유형의 외상사건을 경험한 사람들보다 정신건강 결과가 부정적이라고 알려져 있을 뿐만 아니라, 디지털 성범죄 등 성적 사건에 노출될 수 있는 새로운 형태의 위협이 커지고 있다. 이 연구는 성적 트라우마 사건을 중심으로 트라우마 사건의 유형이 정신건강의 차이를 유발하는지 확인하고, 자살생각과 잠재적 post-traumatic stress disorder (PTSD) 위험수준에 영향을 미치는 요인을 확인하고자 하였다. 방법: 전국 20대부터 50대까지 성인을 대상으로 실시한 온라인 설문조사를 토대로, 경험한 트라우마 사건의 유형에 따라 분석대상자를 구분하였다(성적 트라우마 경험자, 비성적 트라우마 경험자). 성적 트라우마 사건 경험 여부를 제외하고 정신건강(자살생각, 잠재적 PTSD 위험수준)에 영향을 미칠 수 있는 인구사회학적 요인(성, 연령, 주관적 경제수준, 결혼상태)과 회복 보호요인(사회적 지지, 회복 가능성 인지, 아동기 보호경험)을 공변량으로 propensity score matching (PSM)을 실시하였다. 이후 정신건강에 영향을 미치는 요인을 확인하기 위해 이분형 로지스틱 회귀분석을 하였다. 결과: PSM 후에도 성적 트라우마 경험자는 비성적 트라우마 경험자보다 자살생각과 잠재적 PTSD 위험수준이 부정적이었다. 이분형 로지스틱 회귀분석 결과, 성적 트라우마 경험자는 비성적 트라우마 경험자보다 자살생각이 1.9배(odds ratio [OR], 1.911), 잠재적 PTSD 위험수준은 2.5배(OR, 2.472) 높았다. 또한 트라우마 회복 인식, 사회적 지지, 아동기 보호 경험과 같은 회복 보호요인이 부정적일수록 자살생각과 잠재적 PTSD 위험수준의 가능성이 높아졌다. 결론: 이 연구는 성적 트라우마 경험에 대한 이해와 지원의 중요성을 강조하고, 성적 트라우마 경험자의 자살생각과 잠재적 PTSD 위험을 완화하고 회복을 돕기 위해 회복 보호요인을 촉진하는 전략의 필요성을 시사한다.

• Asia pacific journal of information systems
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• 제21권1호
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• pp.103-122
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• 2011

Recently, numerous documents have been made available electronically. Internet search engines and digital libraries commonly return query results containing hundreds or even thousands of documents. In this situation, it is virtually impossible for users to examine complete documents to determine whether they might be useful for them. For this reason, some on-line documents are accompanied by a list of keywords specified by the authors in an effort to guide the users by facilitating the filtering process. In this way, a set of keywords is often considered a condensed version of the whole document and therefore plays an important role for document retrieval, Web page retrieval, document clustering, summarization, text mining, and so on. Since many academic journals ask the authors to provide a list of five or six keywords on the first page of an article, keywords are most familiar in the context of journal articles. However, many other types of documents could not benefit from the use of keywords, including Web pages, email messages, news reports, magazine articles, and business papers. Although the potential benefit is large, the implementation itself is the obstacle; manually assigning keywords to all documents is a daunting task, or even impractical in that it is extremely tedious and time-consuming requiring a certain level of domain knowledge. Therefore, it is highly desirable to automate the keyword generation process. There are mainly two approaches to achieving this aim: keyword assignment approach and keyword extraction approach. Both approaches use machine learning methods and require, for training purposes, a set of documents with keywords already attached. In the former approach, there is a given set of vocabulary, and the aim is to match them to the texts. In other words, the keywords assignment approach seeks to select the words from a controlled vocabulary that best describes a document. Although this approach is domain dependent and is not easy to transfer and expand, it can generate implicit keywords that do not appear in a document. On the other hand, in the latter approach, the aim is to extract keywords with respect to their relevance in the text without prior vocabulary. In this approach, automatic keyword generation is treated as a classification task, and keywords are commonly extracted based on supervised learning techniques. Thus, keyword extraction algorithms classify candidate keywords in a document into positive or negative examples. Several systems such as Extractor and Kea were developed using keyword extraction approach. Most indicative words in a document are selected as keywords for that document and as a result, keywords extraction is limited to terms that appear in the document. Therefore, keywords extraction cannot generate implicit keywords that are not included in a document. According to the experiment results of Turney, about 64% to 90% of keywords assigned by the authors can be found in the full text of an article. Inversely, it also means that 10% to 36% of the keywords assigned by the authors do not appear in the article, which cannot be generated through keyword extraction algorithms. Our preliminary experiment result also shows that 37% of keywords assigned by the authors are not included in the full text. This is the reason why we have decided to adopt the keyword assignment approach. In this paper, we propose a new approach for automatic keyword assignment namely IVSM(Inverse Vector Space Model). The model is based on a vector space model. which is a conventional information retrieval model that represents documents and queries by vectors in a multidimensional space. IVSM generates an appropriate keyword set for a specific document by measuring the distance between the document and the keyword sets. The keyword assignment process of IVSM is as follows: (1) calculating the vector length of each keyword set based on each keyword weight; (2) preprocessing and parsing a target document that does not have keywords; (3) calculating the vector length of the target document based on the term frequency; (4) measuring the cosine similarity between each keyword set and the target document; and (5) generating keywords that have high similarity scores. Two keyword generation systems were implemented applying IVSM: IVSM system for Web-based community service and stand-alone IVSM system. Firstly, the IVSM system is implemented in a community service for sharing knowledge and opinions on current trends such as fashion, movies, social problems, and health information. The stand-alone IVSM system is dedicated to generating keywords for academic papers, and, indeed, it has been tested through a number of academic papers including those published by the Korean Association of Shipping and Logistics, the Korea Research Academy of Distribution Information, the Korea Logistics Society, the Korea Logistics Research Association, and the Korea Port Economic Association. We measured the performance of IVSM by the number of matches between the IVSM-generated keywords and the author-assigned keywords. According to our experiment, the precisions of IVSM applied to Web-based community service and academic journals were 0.75 and 0.71, respectively. The performance of both systems is much better than that of baseline systems that generate keywords based on simple probability. Also, IVSM shows comparable performance to Extractor that is a representative system of keyword extraction approach developed by Turney. As electronic documents increase, we expect that IVSM proposed in this paper can be applied to many electronic documents in Web-based community and digital library.

• 대한간호
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• 제29권2호
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• pp.48-65
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• 1990

The government has adopted a policy to introduce Home Health Care Program, and has established a three stage plan to implement it. The three stage plan is : First, to amend Article 54 (Nurses for Different Types of Services) of the Regulations for Implementing the Law of Medical Services; Second, to tryout the new system through pilot projects established in public hospitals and clinics; and third, to implement at all hospitals and equivalent medical institutions. In accordance with the plan, the Regulation has been amend and it was promulgated on January 9,1990, thus establishing a legal ground for implementing the policy. Subsequently, however, the Medical Association raised its objection to the policy, causing a delay in moving into the second stage of the plan. Under these circumstances, a study was conducted by collecting and evaluating the opinions of physicians, nurses, non-medical personnel and patients on the need and expected result from the home health care for the purpose of help facilitating the implementation of the new system. As a result of this study, it was revealed that: 1. Except the physicians, absolute majority of all other three groups - nurses, non-medical personnel and patients -gave positive answers to all 11 items related to the need for establishing a program for Home Health Care. Among the physicians, the opinions on the need for the new services were different depending on their field of specialty, and those who have been treating long term patients were more positive in supporting the new system. 2. The respondents in all four groups held very positive view for the effectiveness and the expected result of the program. The composite total of scores for all of 17 items, however, re-veals that the physicians were least positive for the- effectiveness of the new system. The people in all four groups held high expectation on the system on the ground that: it will help continued medical care after the discharge from hospitals; that it will alleviate physical and economic burden of patient's family; that it will offer nursing services at home for the patients who are suffering from chronic disease, for those early discharge from hospital, or those who are without family members to look after the patients at home. 3. Opinions were different between patients( who will receive services) and nurses (who will provide services) on the types of services home visiting nurses should offer. The patients wanted "education on how to take care patients at home", "making arrangement to be admitted into hospital when need arises", "IV injection", "checking blood pressure", and "administering medications." On the other hand, nurses believed that they can offer all 16 types of services except "Controlling pain of patients", 4. For the question of "what types of patients are suitable for Home Health Care Program; " the physicians, the nurses and non-medical personnel all gave high score on the cases of "patients of chronic disease", "patients of old age", "terminal cases", and the "patients who require long-term stay in hospital". 5. On the question of who should control Home Health Care Program, only physicians proposed that it should be done through hospitals, while remaining three groups recommended that it should be done through public institutions such as public health center. 6. On the question of home health care fee, the respondents in all four groups believed that the most desireable way is to charge a fixed amount of visiting fee plus treatment service fee and cost of material. 7. In the case when the Home Health Care Program is to be operated through hospitals, it is recommended that a new section be created in the out-patient department for an exclusive handling of the services, instead of assigning it to an existing section. 8. For the qualification of the nurses for-home visiting, the majority of respondents recommended that they should be "registered nurses who have had clinical experiences and who have attended training courses for home health care". 9. On the question of if the program should be implemented; 74.0% of physicians, 87.5% of non-medical personnel, and 93.0% of nurses surveyed expressed positive support. 10. Among the respondents, 74.5% of -physicians, 81.3% of non-medical personnel and 90.9% of nurses said that they would refer patients' to home health care. 11. To the question addressed to patients if they would take advantage of home health care; 82.7% said they would if the fee is applicable to the Health Insurance, and 86.9% said they would follow advises of physicians in case they were decided for early discharge from hospitals. 12. While 93.5% of nurses surveyed had heard about the Home Health Care Program, only 38.6% of physicians surveyed, 50.9% of non-medical personnel, and 35.7% of patients surveyed had heard about the program. In view of above findings, the following measures are deemed prerequisite for an effective implementation of Home Health Care Program. 1. The fee for home health care to be included in the public health insurance. 2. Clearly define the types and scope of services to be offered in the Home Health Care Program. 3. Develop special programs for training nurses who will be assigned to the Home Health Care Program. 4. Train those nurses by consigning them at hospitals and educational institutions. 5. Government conducts publicity campaign toward the public and the hospitals so that the hospitals support the program and patients take advantage of them. 6. Systematic and effective publicity and educational programs for home heath care must be developed and exercises for the people of medical professions in hospitals as well as patients and their families. 7. Establish and operate pilot projects for home health care, to evaluate and refine their programs.

• 마케팅과학연구
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• 제20권3호
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• pp.262-268
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• 2010

虚拟社区(virtual community, VC)今年来发展迅速, 越来越多的人参与到虚拟社区中交换信息和分享观点. 虚拟社区是通过计算机布告板和网络进行非面对面的知识和语言交流的一种大众集合体. B2C电子商务网站虚拟社区则是商业性的虚拟社区, 通过培养信任环境来促进消费者在该网站的购买行为. B2CVC通过信息交流, 如推荐, 评论, 买者与卖者评级等, 来建立社会性的氛围. 目前, 虽然学术界已经认识到B2CVC的重要性, 但是关于社区成员的口碑传播行为的研究还不充分. 本研究提出了一个理论模型, 探讨在B2C网站社区中参与度, 满意度, 信任度, 粘度和口碑传播之间的关系. 本研究的目的有三个: 1, 通过整合信念, 态度和行为的测量来实证检验B2C网站社区模型; 2, 更好地理解各因素对口碑传播的影响关系; 3, 更好地理解B2C网站社区黏度在CRM营销中的作用. 研究模型包含以下要素: 1, 社区成员的信念变量, 通过参与度来测量; 2, 社区成员的态度变量, 通过满意度和信任度来测量; 以及3, 社区成员的行为变量, 通过网站黏度和口播传播意愿来测量. 参与度是消费者在虚拟社区的参与动机. 对于社区成员来说, 信息的查找和发布是他们参与到社区的主要目的. 满意度是成员对社区整体评价的重要指标, 反映了成员与社区的交互程度. 虚拟社区的形成与发展依靠成员分享信息和服务的自愿程度. 研究者已经发现信任是促进匿名交互的关键, 因此构建信任被看作是虚拟社区的重要研究课题. 此外, 虚拟社区的成功依靠成员的粘度来提高购买潜力. 社区成员间的观点交流和信息交换代表一种 "写作式" 的口碑传播. 因此口碑传播是推动B2C虚拟社区在互联网上扩散的主要因素之一. 研究模型及假设如图一所示. 本研究通过实证调查中国携程旅游网虚拟社区成员来验证模型. 数据收集过程中共发放243份问卷, 其中有效问卷204份. 通过实证数据验证了参与度, 满意度和信任度影响粘度和口碑传播之间的假设关系. 结构方程模型(SEM)方法用来进行数据分析. 模型的拟合指数结果为χ2/df 是2.76, NFI是 .904, IFI是 .931, CFI是 .930, 以及RMSEA是 .017. 结果表明, 参与度对满意度具有显著的影响(p<0.001, ${\beta}$=0.809). 参与度可以解释满意度的方差比例超过50%, 调整R2为0.654. 参与度对信任度具有显著影响(p<0.001, ${\beta}$=0.751), 解释率为57%, 调整R2为0.563. 此外, 满意度对黏度的影响显著(${\beta}$=0.514), 但是信任度对黏度的影响并不显著(p=0.231, t=1.197). 黏度对口碑传播的影响显著, 且解释率超过80%, 调整R2为 0.846. 总之, 研究结果支持了大部分的研究假设, 但是信任度显著影响粘度的假设没有得到支持. 本研究丰富了电子商务网站虚拟社区的学术研究成果, 深入探讨了在B2C电子商务环境下的用户信念, 态度和行为等因素. 研究成果有助于实践者进行更有针对性的资源开发和市场开拓. 网络营销人员可以针对B2C网站社区来有针对性地制定营销策略, 如对于国际旅游业务, 营销人员可以针对中国的B2C网站社区用户开展营销活动, 如为活跃的用户提供特殊折扣以及为早期参与者提高社区黏度定制营销计划等. 未来的研究应该拓展社区成员行为的研究, 并在不同的行业, 社区和文化背景下开展研究.

• 마케팅과학연구
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• 제18권4호
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• pp.61-118
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• 2008

본 연구는 국내외 프랜차이즈의 해외진출에 대한 연구들을 바탕으로 국제프랜차이징연구의 전체적인 연구체계를 세워보고, 연구체계를 형성하고 있는 연구요인들을 확인하여 각 연구요소별로 이루어지는 연구주제와 내용을 살펴보고, 앞으로의 연구주제들을 제안하고자 한다. 주요한 연구요소들은 국제프랜차이징의 동기 및 환경 요소과 진출의사결정, 국제프랜차이징의 진입양식 및 발전전략, 국제프랜차이징의 운영전략 및 국제프랜차이징의 성과이다. 이외에도 국제프랜차이징 연구에 적용할 수 있는 대리인이론, 자원기반이론, 거래비용이론, 조직학습이론 및 해외진출이론들을 설명하였다. 또한 국제프랜차이징연구에서 보다 중점적으로 개발해야 할 질적, 양적 방법론을 소개하였으며, 마지막으로 국내연구의 동향을 정리하여 추후의 연구방향을 종합적으로 정리하였다.