• 한국HCI학회논문지
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• 제9권1호
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• pp.11-21
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• 2014

본 논문은 시각 정보로 인해 유발되는 어지럼증(Visually Induced Motion Sickness, VIMS)에 따른 뇌전도(EEG)와 활력 징후(vital sign)의 신체적 반응 및 유발 요인에 대한 분석에 대한 연구이며, 피험자 상태 기반의 동영상 모션 보정을 위한 선행 연구로 수행되었다. 이를 위해 어지럼증을 유발하는 동영상을 제작하여 총 11명의 피험자들에 대한 설문조사와 실험을 수행하였다. 동영상 제작을 위해 모션 벡터 추출 기법인 옵티컬 플로우(optical flow) 측정법을 이용하여 VIMS 유발 동영상으로부터 전역 모션을 추출하고 이를 모션이 없는 동영상에 적용하여 인위적인 모션을 갖는 동영상을 제작하였다. 실험 동영상은 콘텐츠 종류에 따라 영화, 텍스트 두 종류로 분류되며, 적용된 모션 강도에 따라 콘텐츠 별 세 편씩 총 여섯 편의 실험 동영상을 제작하였다. 피험자가 시청하는 동안 간이 뇌전도 측정기를 이용하여 실시간으로 뇌전도를 측정하였고, 이와 동시에 전자혈압계를 이용해 최고/최저 혈압과 맥박을 주기적으로 측정하였다. 측정된 뇌전도 신호는 채널 별 신호 간 상관도(correlation) 연산을 통해 얻어진 Distance Map(DM)을 활용하여 분석하였으며, 측정된 신체 반응 지수와 모션 강도 및 설문조사 결과와 관계에 대한 정량적 분석 및 분류를 수행하였다. 결과 분석을 통해 동영상의 모션 강도와 동영상 시청 전후의 신체 반응의 변화 정도에 따라 모션과 피험자가 느끼는 어지럼에 대한 상관관계를 분석하여 피험자를 특정한 그룹으로 분류할 수 있었다.

• 지식경영연구
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• 제25권1호
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• pp.1-19
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• 2024

최근 개인 정보 유출 사건이 빈번히 발생하고 빈도가 갈수록 증가하는 추세이지만, 개인 정보 유출 사건에 대한 사회나 정보주체인 시민들의 반응은 크게 대두되고 있지 않다. 또한, 개인 정보 유출 사건들에 대한 정보 주체의 반응을 여러 해 기간동안의 데이터에 기반하여 비교하는 연구는 많이 수행되어 있지 않다. 따라서, 본 연구는 2014년 1월부터 2022년 10월까지 국내에서 발생한 주요 개인정보 유출 사건들에 대한 정보주체의 소셜미디어 반응 변화를 분석하였다. 각 사건들이 발생한 직후 일주일간의 기간 동안 네이버 블로그에 작성된 총 1,317건의 포스팅을 수집하였다. 이 포스팅들에 대해 LDA 토픽 모델링 기법을 적용하여 주제를 분석한 결과, 개인정보 유출, 해킹, 정보기술 등 5개의 주요 토픽이 도출되었다. 토픽 분포의 시간변화를 분석한 결과, 개인정보 유출 사건 직후에는 해당 사건에 대한 직접적인 언급 토픽의 비중이 가장 높았으나, 시간이 지나면서 개인정보 유출과 간접적으로 관련된 토픽의 언급 비중이 증가하는 것을 확인하였다. 이는 개인정보 유출 사건 발생 후 정보주체의 관심이 시간이 지남에 따라 해당 사건에서 벗어나 관련 토픽으로 옮겨지고, 개인정보 보호에 대한 관심 또한 줄어든다는 것을 의미한다. 본 연구 결과는 향후 개인정보 유출 사건 이후 정보주체의 프라이버시 인식 변화에 대한 연구의 필요성을 시사한다.

• 마케팅과학연구
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• 제20권2호
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• pp.123-134
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• 2010

考虑到消费者和供应商的利益, 公司利用网络为媒介来沟通并向消费者销售产品. 这一趋势使得很多研究者和实践者都关注网上购物环境这一领域. 本文测试了网上消费者行为和具有不同快乐主义水平的网址的模型. 与以往的研究不同, 我们包括了所有三种情绪(激励, 快乐和支配)并将此运用到模型中. 本研究中, 我们假设网址的外观, 例如背景颜色, 音乐和字体在消费者最初接触到网址时均影响三种情绪(Mazaheri, Richard, and Laroche, 2011). 反之, 这些情绪会影响消费者对网址氛围的感知–网址信息量, 效率和娱乐性的感知. 这些假设与Zajonc (1980)的研究一致. 他认为情感的作用是独立于感性的和认知操作并且可以影响回应. 我们因此提出网址氛围和流量的感知影响消费者对网址和产品的态度, 网址卷入和购买意图. 另外, 我们研究网址的快乐主义水平对模型中所有关系的调节作用. 因此, 我们比较享乐网址路径系数 "高" 和 "低". 我们用39个真实的网站涵盖了12种产品类别(8种服务和4种实物产品)来测试模型. 这其中, 回复者认为20个是高享乐, 19个为低享乐. EQS6.1的结果支持整体模型: x2=1787 (df=504), CFI=.994; RMSEA=.031. 所有假设都是显著的. 另外, 多群组分析表明在高享乐和低享乐网址群组之间的几个非不变量结构路径. 这些结果支持三种情绪影响消费者对网址氛围, 流量和其他消费者行为变量的认知. 我们发现快乐极大的影响这网址态度和网址娱乐性的认知. 激励积极的影响其他两种情绪, 网址信息量的认知和网址卷入. 而且, 激励对流量的影响非常显著. 这些结果说明在支配和消费者对网址效率的认知之间有很强的相关. 支配同时和网址态度和流量相关. 另外, 结果还表明网址卷入和对产品的态度是购买意图最重要的两个因素. 网址信息量和流量也积极的影响购买意图. 多群组分析的结果支持网址快乐主义的调节作用. 与低(高)享乐网址相比, 实用(享乐)属性对其他变量的影响比高(低)享乐网址更强. 在这三种情绪中, 支配(控制感)影响在高享乐网址中更强. 快乐影响在低享乐网址中更强. 而且, 网址信息量的影响对高享乐网址更强. 另一方面, 信息效率对网址信息量认知的影响和网址卷入对产品态度的影响在低享乐网址中更强.

• 한국콘텐츠학회논문지
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• 제20권6호
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• pp.460-469
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• 2020

본 연구는 코로나19 사태로 인하여 최근 이슈로 떠오르는 '마스크 5부제'에 대한 온라인 뉴스 기사와 카페글을 분석하여 언론과 대중들의 반응을 담고 있는 매스 미디어와 소셜 미디어 의제를 파악하고, 그 차이점을 알아보았다. 분석을 위해 네이버 뉴스 기사 전문 2,096건과 카페글 1,840건을 수집하고 데이터 전처리 과정과 정제과정을 거쳐 단어 빈도분석, 워드 클라우드, LDA 토픽모델링 분석을 실시하였다. 분석 결과, 매스 미디어에 비해 소셜 미디어는 '대리 구매', '개학 연기', '마스크 사용', '마스크 구입'과 같이 실생활 관련 토픽이 나타나 개인 미디어의 특성이 반영되어 정보 전달의 기능 보다는 개인의 의견, 감정, 정보를 교류하는 역할을 하는 것으로 나타났다. 본 연구에 적용된 연구방법의 적용으로 다양한 미디어 분석을 통해 사회이슈가 공중의제화되고, 정부의제로 진화하는 정책의제설정 과정에서 참고자료로 활용될 수 있을 것이다.

• 대한한방부인과학회지
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• 제30권1호
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• pp.85-94
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• 2017

Objectives: To explore experiences of treatment-related side effects and supportive care among Korean breast cancer survivors (BCS). Methods: Focus group interview was conducted with six Korean women with breast cancer. Participants were recruited through snow-balling. Interview was audio-recorded and transcribed verbatim. NVivo-11 was used to code the data into themes. Results: Two major themes were identified: (1) experiences of Western medicine, including treatment, side effects, needs and costs; (2) experiences of supportive care with Korean medicine, including the same as above. All participants experienced Western medicine in treatment phase and reported impairment of physical, emotional, and social functioning during and after Western medicine treatment. Only three participants used Korean medicine after treatments end. The negative responses from Western medicine doctors were the most important factor keeping participants from accessing Korean medicine when treatment-related side effects occurred. For this reason, some participants used Korean medicine without disclosure. Participants usually acquired information about Korean medicine from online community or other BCS, which was another important factor because it raised concerns about side effects and credibility of Korean medicine. High cost was also reported as barrier in using Korean medicine. During the cancer treatment, participants tended to endure their treatment-related side effects. Conclusions: Korean BCS may be at high risk of physical or emotional distress during treatment period. Findings suggest that there is a high need for supportive care to relieve treatment-related side effects and improve patients' quality-of-life. Furthermore, developing a systematic guidance or credible information sources should be warranted to help patients find the best supportive care options including Korean medicine.

• 한국임상약학회지
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• 제25권3호
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• pp.138-144
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• 2015

Objective: It is to evaluate the drug interaction monitoring program as a pilot project to develop a pharmaceutical care model in a medical intensive care unit and to analyze the influencing factors of drug interactions. Method: Electronic medical records were retrospectively investigated for 116 patients who had been hospitalized in a medical intensive care unit from October to December in 2014. The prevalence of adverse reaction with risk rating higher than 'D' was investigated by Lexi-$Comp^{(R)}$ Online database. The factors related with potential drug interaction and with treatment outcomes were analyzed. Results: The number of patients with a potential interaction of drug combination was 92 (79.3%). Average ages, the length of stay in the intensive care unit and the numbers of prescription drugs showed significant differences between drug interaction group and non-drug interaction group. Opioids (14.4%), antibiotics (7.2%), and diuretics (7.2%) were most responsible drug classes for drug interactions and the individual medications included furosemide (6.4%), tramadol (4.9%), and remifentanil (4.5%). There were 950 cases with a risk rating of 'C' (84.6%), 142 cases with a risk rating of 'D' (12.6%), and 31 cases with a risk rating of 'X' (avoid combination) (2.8%). The factors affecting drug interactions were the number of drugs prescribed (p < 0.0001) and the length of stay at intensive care unit (p < 0.01). The patients in intensive care unit showed a high incidence of adverse reactions related to potential drug interaction. Therefore, drug interaction monitoring program as a one of pharmaceutical care services was successfully piloted and it showed to prevent adverse reaction and to improve therapeutic outcomes. Conclusion: Active participation of a pharmacist in the drug management at the intensive care unit should be considered.

• 대한환경공학회지
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• 제31권2호
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• pp.102-108
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• 2009

연속회분식반응기에서 측정되는 기초상용계측기의 프로파일은 공정 내에서 수행되는 유기오염물질 및 영양염류 제거반응의 진행 정도에 대한 정보를 제공할 수 있다. 특히 호기성 반응구간에 측정되는 pH나 DO, ORP의 변곡점 등의 정보를 이용한 반응 종료 감지는 널리 알려진 응용사례라고 할 수 있다. 그러나 이러한 정보들은 반응의 종료 여부에 대한 정보를 제공할 뿐, 현재 공정에 가해지는 부하에 대한 정보를 제공하지는 못한다. 본 논문에서는 운전자에게 공정 유입수 내의 호기적 반응을 요하는 부하, 즉 암모니아 부하 및 유기물 부하의 고/중/저에 관한 정보를 제공할 수 있는 기초상용계측기의 정보를 활용한 진단 알고리즘을 개발하였다. 본 알고리즘으로 인해, 연속회분식반응기를 운전할 시에 수시로 변화하는 유입수의 부하를 습식분석 없이 자동 계측기 프로파일로부터 얻어낼 수 있을 것으로 사료된다.

• Korean Journal of Acupuncture
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• 제35권4호
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• pp.159-165
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• 2018

Objectives : This study was performed to review the efficacy of national and international randomized controlled trials (RCTs) investigating evidence on thread embedding therapy for knee osteoarthritis. Methods : Online databases (PubMed, EMBASE, Cochrane, NDSL, OASIS, CNKI) were searched for studies where thread embedding therapy was performed for Knee Osteoarthritis from their inception to July 2018. Two researchers independently performed the search. Only RCTs were selected. Eligible studies were selected first by the abstract and the title and then included after full-texts were read. Risk of bias of the included studies were evaluated using the Cochrane risk of bias assessment tool. Data were narratively summarized. Results : There were 334 studies retrieved from the databases, resulting in analysis of 3 RCTs. There was an average of 1.5 treatment visits over a 7 day period and evaluation tool used was efficacy rate, with traditional acupuncture being the most common control used in the trials. Statistically significant improvement by thread embedding therapy was reported. None of the included RCTs reported on adverse reactions. The risk of bias of the included studies was generally unclear. Conclusion : The review suggests that thread embedding therapy can be effective in knee osteoarthritis. But there was a lack of detailed information about the treatment procedures, and the risk of bias was unclear. Therefore, there is insufficient evidence for thread embedding therapy for knee osteoarthritis.

• Safety and Health at Work
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• 제10권1호
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• pp.3-20
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• 2019

This review aimed to identify risk factors for occupational accidents and illnesses among young workers in the Nordic countries and to attain knowledge on specific vulnerable groups within the young working force that may need special attention. We conducted a systematic review from 1994 to 2014 using five online databases. Of the 12,528 retrieved articles, 54 met the review criteria and were quality assessed, in which data were extracted focusing on identifying occupational safety, health risk factors, and vulnerable groups among the young workers. The review shows that mechanical factors such as heavy lifting, psychosocial factors such as low control over work pace, and organizational factors such as safety climate are all associated with increased injury risk for young Nordic workers. Results show that exposures to chemical substances were associated with skin reactions, e.g., hand eczema. Heavy lifting and awkward postures were risk factors for low back pain, and high job demands were risk factors for mental health outcomes. The review identified young unskilled workers including school drop-out workers as particularly vulnerable groups when it comes to occupational accidents. In addition, apprentices and young skilled workers were found to be vulnerable to work-related illnesses. It is essential to avoid stereotyping young Nordic workers into one group using only age as a factor, as young workers are a heterogeneous group and their vulnerabilities to occupational safety and health risks are contextual. Politicians, researchers, and practitioners should account for this complexity in the education, training and organization of work, and workplace health and safety culture.

• Journal of Information Science Theory and Practice
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• 제10권4호
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• pp.66-86
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• 2022

The main aim of this study is to identify the role of information dissemination on urban and rural citizens of Bangladesh during the COVID-19 pandemic and the role of misinformation in this process. The study also aimed at finding appropriate counter misinformation strategies regarding COVID-19. An online questionnaire was prepared to collect the viewpoints of the urban and rural citizens of Bangladesh regarding dissemination of information during COVID-19, misinformation regarding COVID-19, and counter misinformation strategies. Along with demographic and general information, a five-point Likert scale was used to measure COVID-19 related misinformation beliefs and how to counter them. Chi square tests were used to determine the association between current residency, information sources, the importance of information dissemination, reactions after getting COVID related information, and evaluative steps after getting information and before disseminating it. Additionally, nonparametric Mann-Whitney U and Kruskal-Wallis tests were conducted to know the significance of difference in respondents' assessment on COVID-19 related misinformation in terms of their demographic characteristics. Cronbach's alpha score was obtained to see the reliability of the questionnaire items. The current study reveals that both urban and rural citizens of Bangladesh are influenced by information dissemination regarding COVID-19 and they have lower level of misinformation belief. The respondents have differences in misinformation belief by different demographic groups. Respondents' educational status, information literacy, sources of getting information, and evaluative steps after getting information have significant differences in misinformation belief. The study also noticed the support of respondents for countering misinformation strategies regarding COVID-19.