• 한국지구과학회지
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• 제25권3호
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• pp.142-151
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• 2004

This study was designed to determine whether visitor behavior at science museums differs across various exhibit styles and between Family and Non Family groups. Eight exhibits in the natural history sections of the national science museum located in Daejeon were identified to have distinctive characteristics and styles. At each selected exhibit, visitor behavior was observed for an hour. An average of eighty people stopped by each exhibit. Descriptive analyses of visitors behaviors showed that: 1) families spent more time than non-family visitors; 2) families paid more attention to exhibits, for instance, they talked and commented about the exhibits; 3) exhibit characteristics related to holding power and attention span; 4) families more frequently visited exhibits related to school curriculum rather than ones that looked attractive, fun or novel. Visitors did not play with sensory simulation types of exhibits as much as expected. This implicates that exhibit style does not guarantee long visitors holding time and attracting power. Non-significant results are explained in terms of environmental and exhibit-related factors. Several potential factors including visitor factors, setting factors, and exhibit factors are discussed and explored with topics proposed for future study.

• 생약학회지
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• 제5권3호
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• pp.159-166
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• 1974

The Yellow needle crystal was isolated from Atractylis Rhizoma, having mp $124{\sim}126^{\circ}C$(decomp.), the chemical composition $C_{16}H_{21}N_{3}O_{6}$, and its m.w. 251. The pharmacological actions of this alkaloid were studied by various psycopharmacological experiments. 1) In order to see the effect of this Atractylis(=At.) alkaloid on gross general behaviors in mice, a behavioral analysis experiment was adapted. The occurrence number of sleep and lying in At. alkaloidal animals with the doses 10mg/kg or 20mg/kg was increased but the number of jumping, exploration, rearing and defecation was significantly decreased than those of placebo. 2) The effect of the At. alkaloid on unlearned emotional behaviors of mice was studied with an open-field method. The At. alkaloidal groups with the doses 20mg/kg or 30mg/kg showed less often the frequency of locomotion than that of placebo. 3) To know the effect of the At. alkaloid on the learning, a standard water maze experiment and conditioned avoidance response were conducted. As compared to placebo control, the aquisition rate of the maze learning in the alkaloidal mice with the dose of 10mg/kg or 20mg/kg was significantly impaired and the speed of swimming was also signficantly delayed. In the conditioned avoidance response, the extinction performances of the alkaloidal rats with doses of 20mg/kg or 30mg/kg did not differ significantly than that of placebo.

• International Journal of Computer Science & Network Security
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• 제24권1호
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• pp.52-60
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• 2024

APT (Advanced Persistent Threat) attack is a dangerous, targeted attack form with clear targets. APT attack campaigns have huge consequences. Therefore, the problem of researching and developing the APT attack detection solution is very urgent and necessary nowadays. On the other hand, no matter how advanced the APT attack, it has clear processes and lifecycles. Taking advantage of this point, security experts recommend that could develop APT attack detection solutions for each of their life cycles and processes. In APT attacks, hackers often use phishing techniques to perform attacks and steal data. If this attack and phishing phase is detected, the entire APT attack campaign will be crash. Therefore, it is necessary to research and deploy technology and solutions that could detect early the APT attack when it is in the stages of attacking and stealing data. This paper proposes an APT attack detection framework based on the Network traffic analysis technique using open-source tools and deep learning models. This research focuses on analyzing Network traffic into different components, then finds ways to extract abnormal behaviors on those components, and finally uses deep learning algorithms to classify Network traffic based on the extracted abnormal behaviors. The abnormal behavior analysis process is presented in detail in section III.A of the paper. The APT attack detection method based on Network traffic is presented in section III.B of this paper. Finally, the experimental process of the proposal is performed in section IV of the paper.

• 한국콘텐츠학회논문지
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• 제20권6호
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• pp.197-210
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• 2020

학습민첩성은 새로운 환경과 경험 속에서 빨리 학습하여 생각과 행동을 유연하게 변화시키는 의지와 능력이고, 위기를 극복하고 조직의 문제를 해결하는 핵심역량이며, 언제든지 개발 가능하기 때문에, 군(軍)과 같은 조직 집단에서 활용할 수 있는 개념이다. 선행연구를 토대로 육군 간부의 직무특성과 개인학습민첩성이 학습만족도에 어떤 영향을 미치는지 연구를 진행하였다. 상·원사 216명을 대상으로 설문을 받아 SPSS 24.0을 이용하여 측정변인에 대한 신뢰도과 타당도를 검증하고, 가설에 대해 회귀분석으로 검증한 결과, 직무특성 하위항목 일부(업무과부하)가 부적인 영향을 미치며, 개인 학습민첩성 하위항목 일부(자기인식, 적극적 변화추구)는 학습만족도에 정적인 영향을 미치는 것으로 나타났다. 이는 군 사이버교육의 효과를 증진하기 위해서는 야전에서 업무가 과부하되지 않도록 조치하고, 군 조직에서 성과를 높이기 위해서는 자기인식 및 피드백을 바탕으로 적극적인 변화를 추구하는 개인 학습민첩성을 개발해야 함을 의미한다.

• 한국임상약학회지
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• 제27권2호
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• pp.55-62
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• 2017

Experiential education is a core curriculum of pharmacy education. In experiential education, formative feedback is an integral component of learning and teaching process. Feedback is defined as information provided by a preceptor regarding student's performance based on direct observation. With effective feedback, students can have opportunities to reinforce or correct behaviors and to acquire knowledge or skills. Students highly value and appreciate feedback. They rank provision of effective feedback as one of the most important qualities of preceptors. Preceptors, however, lack an understanding of feedback or practical skills necessary for providing effective feedback. As a result in reality, the feedback provided to students can be differentially effective in improving students' learning. This article describes a theoretical understanding of feedback including definition and value, as well as types of feedback. In addition, practical aspects in providing feedback, such as contents, timing, techniques, and models, are addressed. By understanding the value of feedback and mastering various feedback skills, preceptors will promote students' learning and enhance educational outcomes of experiential education.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제16권1호
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• pp.305-318
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• 2022

Abusive behaviors have become a common issue in many online social media platforms. Profanity is common form of abusive behavior in online. Social media platforms operate the filtering system using popular profanity words lists, but this method has drawbacks that it can be bypassed using an altered form and it can detect normal sentences as profanity. Especially in Korean language, the syllable is composed of graphemes and words are composed of multiple syllables, it can be decomposed into graphemes without impairing the transmission of meaning, and the form of a profane word can be seen as a different meaning in a sentence. This work focuses on the problem of filtering system mis-detecting normal phrases with profane phrases. For that, we proposed the deep learning-based framework including grapheme and syllable separation-based word embedding and appropriate CNN structure. The proposed model was evaluated on the chatting contents from the one of the famous online games in South Korea and generated 90.4% accuracy.

• 인간행동과 음악연구
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• 제3권2호
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• pp.1-14
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• 2006

본 연구의 목적은 바이올린 교습 중심의 음악치료 활동이 주의력결핍과잉행동장애 아동들의 집중력과 충동성 조절에 변화를 가져오는지 연구하고 그러한 변화가 일상생활에 전이가 되는지 보고자 하는 것이다. 본 연구는 연령대가 비슷하고 종합병원에서 ADHD라고 진단을 받은 초등학교 2학년, 3학년, 4학년을 대상으로 선정하여, 본 연구자가 8주에 걸쳐 14번의 개별 세션과 마지막 회기의 발표회 연주로 총 15회기를 실시하였다. ADHD 아동의 집중력 향상과 충동성 조절의 변화를 살펴보기 위하여 15회 음악치료 활동 전 후에 실시한 대상 아동의 문제행동측정리스트(K-CBCL) 검사도구 중 주의 집중문제 항목, 단축형 Conners 부모용 평정척도(ACRS), 가정환경 설문지 개정판(CHSQ-R), 개정판 Conners 교사 평정척도(CCTRS-28) 검사 도구의 점수를 비교 분석하였다. 또한, 세션 안에서 보이는 '주의산만행동'과 '학습 외 행동'은 빈도수 기록으로 나타내었으며, '학습 외 행동' 중 가만히 있지 못하고 손발을 움직이는 '손발 행동'은 등간 기록법, '주의집중시간'은 지속 시간 기록법으로 표시하였다. 위의 척도들이 가지는 양적인 데이터의 단점을 보완하기 위하여 아동들이 음악활동에서 보여 준 집중력과 충동 조절에 관한 반응을 질적으로 분석하였다. 그 결과 바이올린 교습 중심의 음악치료 실시 후 ADHD 아동의 집중력과 충동성 조절이 향상되었으며 가정이나 학급에서 발생하는 문제 행동 감소에 효과가 있음이 확인되었다. 본 연구는 선행 연구가 빈약한 분야인 바이올린 교습을 치료적으로 적용하여 실제 ADHD 아동을 대상으로 음악치료 활동의 효과를 입증한 점에서 의의가 있다. 즉 기존의 약물치료와 인지행동치료의 제한점으로 인해 모든 ADHD 아동들에게 그러한 치료를 적용할 수 없다는 한계와 현실적인 한국 상황 내 치료 관행을 고려해 볼 때, 바이올린 교습 중심의 음악치료적 접근이 ADHD 아동에 대한 치료적인 대안이 될 수 있음을 시사한다.

• 영어어문교육
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• 제17권3호
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• pp.141-159
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• 2011

This study examined the effects of collocation-based instruction on L2 vocabulary acquisition and learners' interests in it. Fifty one students were randomly assigned to the experimental group (collocation-based instruction group) and to the control group. The participants' English vocabulary capacity was checked through pre and post tests, and two surveys were used to probe the learners' vocabulary learning behaviors and their interests in English vocabulary learning respectively. To better understand the participants' opinions and feelings on the collocation-based learning, follow-up interviews were also carried out. The results showed that second language (L2) learners' vocabulary capacity was significantly improved through collocation-based instruction. However, the participants' degree of interest in vocabulary learning did not reach our expectation partly because of external factors such as the Test for the College Scholastic Ability Test (CSAT) and lack of familiarity of collocations. Such results indicate that the high school students' rooted perception of putting importance on test-based language learning could not be easily changed since it is closely related to their immediate needs. Based on the results, this study suggested how to implement collocations into L2 classrooms effectively.

• 한국콘텐츠학회논문지
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• 제9권2호
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• pp.462-470
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• 2009

학습 공간의 확대로 원격교육은 교수 학습 방법의 주요 흐름의 하나로서 자리잡았고 이를 지원하기 위한 다양한 매체, 기술 및 전략 등에 관한 연구가 지속적으로 이루어지고 있다. 하지만 대부분의 원격교육시스템은 교수자나 학습자에게 일정 수준 이상의 기술적 소양과 경제적 부담을 요구한다. 또한 이러한 문제점을 해소하기 위한 학교 현장에서의 간소화된 웹 기반 원격교육시스템은 학습자 행동을 파악하기 어렵게 하는 단점이 있다. 이에 본 연구에서는 시스템의 구축 및 운영에 필요한 부담을 제거하고 원격학습 환경에서 학습자의 지식 상태에 의존하여 개별화 학습이 가능한 개별적 발문에 기반한 동적 원격교육시스템을 개발하고 그 효과성을 검증하였다.

• 유통과학연구
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• 제15권1호
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• pp.43-49
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• 2017

Purpose - This study is to integrate organizational factors into UCD process. For this research purpose, we investigated the organizational factors which influence people behaviors in the context of user-centred design practice(UCP). And this study presents organizational culture, organizational learning and change management as the organizational factors. Especially, this study is to investigate how change management influences the relationship between the organizational culture/learning and UCD performance. Research design, data, and methodology - Using the survey methodology with a questionnaire, this study distributed the questionnaire to the experienced 112 practitioners of user-centred design practice in 52 Korean small and medium companies. The organizations differed in range and size from medium-scale, which is under 100 of employees, and to small-scale, which is from 100 to 500. Results - Organizational culture and organizational learning have positive effects on user-centred design practice performance as expected. And change management strengthens the positive relationship between organizational learning and user-centred design practice performance but has no effect on the relationship between organizational culture and user-centred design practice performance. Conclusions - This is the first empirical study of investigating and demonstrating some key organizational factors' relationships and UCD performance of an organization, which will support to institutionalize UCD within an organization, providing theoretical foundations.