• Journal of Digital Convergence
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• v.14 no.10
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• pp.33-43
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• 2016

The purpose of this study was using a meta-analysis to estimate effect size of school violence prevention program. Using an objective and systematic method, meta-analysis has advantages that prove intervention's amount and direction. Meta-analysis facilitates comprehensive analysis. Through the data collection, 33studies were selected and 129 effect size were calculated as analysis objects. The overall effect size of school violence prevention program was 0.624. In the human characteristic, the affective domain had the largest effect size. Next were the physical domain, cognitive domain, the social domain and the complex domain. Analysis on age of participant, high grade elementary students group had the largest effect size. Next were the high school students, middle school students and the lower grade elementary students group. Analysis on intervention periods, tertiary prevention had a largest effect size. Next were secondary prevention and primary prevention. Based on the findings, implications for future study were discussed.

• Journal of the Korean Association of Geographic Information Studies
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• v.26 no.4
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• pp.188-199
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• 2023

CCTV is widely used as a crime prevention method globally; however, there is insufficient evidence regarding its effectiveness. This study assesses the suitability of CCTV locations and their impact on crime prevention. First, to analyze the appropriateness of the location of CCTVs, we overlaid the locations of crimes and CCTV, and found that there are many cases where CCTV were placed where crime rarely occurred. Using various cases, we verified CCTV's crime prevention effectiveness. The WDQ was applied to comprehensively analyze the impact of CCTV surveillance area and surrounding areas to determine the crime prevention effect. As a result of the analysis, CCTV was found to be effective in preventing crime. In 53.09% of the cases, there was a diffusion effect of crime control benefits in the surrounding area, which was four times more than the cases with a transfer effect. Thus, strategically installing CCTV in appropriate locations enhances crime prevention effectiveness based on spatial analysis.

• Proceedings of the KIPE Conference
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• 2016.07a
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• pp.17-18
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• 2016

본 논문은 한국전기안전공사에서 취약계층의 전기안전을 확보하기 위한 시행하는 전기안전 긴급출동, 공익서비스의 전기화재 예방효과를 분석하기 위해 화재사고 예방효과 분석방법을 이용하여 전기화재 감소율을 산출하였다. 또한 산출결과를 이용하여 전기화재 예방건수, 전기화재에 의한 사상자, 경제적 피해 등의 예방효과를 산출하였다. 이 결과 연평균 265건의 전기화재사고를 예방하였으며, 연평균 9명의 사상자와 약 17억원의 경제적 손실을 예방할 수 있었다.

• Journal of Digital Convergence
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• v.17 no.12
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• pp.565-573
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• 2019

This study was conducted on 236 dental hygienists to find ways to improve patient education by identifying their concern in preventive care, their level of prevention management knowledge, and their impact on patient education by mediating their prevention-related knowledge. It was found that the prevention care concern, prevention knowledge and patient education of dental hygienists have a significant correlation, the higher the prevention care concern, the better the patient education, the better the prevention care knowledge, the better the prevention management knowledge, the better the patient education. The regression analysis and Sobel verification were conducted in order to identify a mediating effect of the preventive care knowledge on the influence that the level of concern on preventive dental care affects the patient education. Therefore, it was confirmed that the level of concern on preventive dental care has not only a direct effect and an indirect effect. Based on the results of this study, it is believed that the preventive education effect of patients will be even higher if institutional support is supported along with the attention of dental hygienists on preventive work and education for preventive knowledge content.

• Journal of Industrial Convergence
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• v.17 no.4
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• pp.87-94
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• 2019

The purpose of this study is to predict the usefulness and predictable effects of the use of dementia prevention games and dementia management applications provided in smart-phones for the elderly. First, 6 dementia diagnostic tools used to verify the effectiveness of the dementia prevention program were selected and the cognitive domains tested by each diagnostic tool were extracted. Second, 29 smart-phone dementia prevention game applications and dementia management applications were selected and the expected effects after using these applications were analyzed in connection with the cognitive domain extracted from the dementia diagnosis tool. As a result, it was expected that it would be helpful to manage dementia prevention by improving cognitive function in certain areas when playing games or managing dementia continuously using smart-phone dementia prevention applications. Smart-phone dementia prevention applications will be useful in improving the cognitive ability of the elderly and preventing dementia by supplementing the limitations of the dementia prevention program that is operated offline through time-space ease of use, continuous usability and economic feasibility.

• Physical Therapy Korea
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• v.7 no.4
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• pp.56-64
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• 2000

최근에 작업현장에서 널리 사용되고 있는 허리보호대는 그 예방적 효과에 대한 확실한 검증이 이루어지지 않고 있다. 작업현장에서의 허리보호대의 예방적 효과에 대한 8편의 생체역학적(biomechanical) 연구들과 6편의 역학적(epidemiological) 연구들 그리고 2편의 종합적 연구들을 비교 정리하였다. 대부분의 생체역학적 연구들은 허리보호대의 기계적 작용과 그에 따른 예방적 효과와의 직접적인 상관관계를 보여주지 못하고 있다. 역학적 연구들은 일관성 없는 결과들을 발표하여 작업현장에서의 허리보호대의 예방적 효과에 대한 연구결과간의 비교를 어렵게 하고 있다. 좀더 확실한 결론을 얻기 위해서 앞으로 작업현장에서의 허리보호대의 예방적 효과에 대한 더 많은 연구가 있어야 할 것이다.

• Journal of the Korea Convergence Society
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• v.12 no.7
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• pp.337-347
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• 2021

This study sought to determine whether there were mediating effects on both mental health and sleep problems as induced by COVID-19 fears and its effects on preventive practices. The participants were 310 adults living in the Seoul/Gyeonggi Province. For data collection, an online survey was conducted using a semi-structured questionnaire. The collected data were analyzed using PROCESS Macro (Model 6) to validate the dual mediating effects. This study analyzed the direct effects of COVID-19 fears on the mental health problems, sleep problems and preventive practices. Both mental health and sleep problems had dual mediating effects in the influence of COVID-19 fears on preventive practices. Preventive practice has shown that the mediated effects of mental health problems play a strong role in instances when COVID-19 fears increase.

• Communications for Statistical Applications and Methods
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• v.15 no.1
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• pp.77-86
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• 2008

This paper develops the optimal periodic preventive maintenance policy following the expiration of non-renewing warranty. We assume that Wu and Clements-Croome's (2005) periodic PM model with random maintenance quality is utilized to maintain the system after the non-renewing warranty is expired. Given the cost structure to the user during the cycle of the product, we drive the expressions for the expected cost rate per unit time. Also, we obtain the optimal number and the optimal period by minimizing the expected cost rate per unit time. The numerical examples are presented for illustrative purpose.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2005.05a
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• pp.927-932
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• 2005

전투기를 적절히 정비하는 활동은 공군력을 유지하는데 중요하다. 일반적인 정비정책은 정해진 일정으로 주요 모듈의 정비를 수행한다. 그러나, 이러한 정비활동은 시간에 따라 변하는 모듈의 특성을 반영할 수 없다. 이에 본 연구는 변동되는 평균 고장간 시간 (MTBF) 과 평균 수리 시간 (MTTR)을 산출할 수 있는 확률효과회귀모형을 이용하여 시간에 따라 변동되는 모듈의 특성을 반영한 동적 예방정비 주기를 예측하고자 한다. 본 연구의 결과는 대한민국 공군의 전투 준비 태세 향상에 이바지 할 것으로 기대된다.

• 우유
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• s.54 fall
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• pp.20-30
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• 1993

한국야쿠르트유업은 지난 8월27일 롯데호텔에서 ‘유산균과 건강’이란 주제로 국제학술심포지엄을 개최했다. 이날 심포지엄에서는 암예방을 위한 유산균의 효과(Bandaru S. Reddy 미국 보건연구재단 영양 · 암연구부장), 비피더스균을 이용한 유산균제품의 개발(Denis Roy 캐나다 농업연구소 식품연구개발센터 낙농부장), 유산균의 항암작용에 대한 실험연구(Wilhelm H · Holzapfel 독일 국립 영양연구센터 위생 및 독성연구소장) 등의 주제발표가 있었다. 본지는 이중 ‘암예방을 위한 유산균의 효과’를 전재한다.