• 디지털융복합연구
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• 제17권11호
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• pp.127-136
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• 2019

소셜 미디어 사용자들이 서비스 업체에 공유하는 정보는 성별, 나이와 같은 개인 식별 정보와 사진, 댓글과 같은 사생활 정보로 구분할 수 있다. 하지만 기존 소셜 미디어 관련 연구들에서는 정보 유형에 따른 의사 결정 차이가 생길 수 있음에도 불구하고 두 정보 유형을 구분하여 정보 공유 의사 결정 차이를 살펴본 연구는 미흡하였다. 그래서 본 연구에서는 정보 유형에 따른 정보 공유 의사 결정 차이를 살펴보고자 한다. 350명의 페이스북 사용자를 대상으로 연구 모형을 분석하였다. 연구 모형 분석 결과, 자기 표현, 신뢰, 인지된 보안은 개인 식별 정보 의지와 사생활 정보 공유 의지 모두에 양으로 유의한 영향을 미쳤다. 하지만, 프라이버시 침해 우려는 개인 식별 정보 의지와 사생활 정보 공유 의지에 부정적으로 유의한 영향을 미쳤다. 본 연구 결과를 통해 개인 정보 공유에 대한 의사 결정과 사생활 정보 공유에 대한 의사 결정이 차이가 없음을 확인할 수 있었다.

• 응용통계연구
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• 제37권3호
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• pp.381-393
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• 2024

이 연구는 개인정보의 가명처리와 이것이 데이터 분석의 정확도에 미치는 영향을 조사하였다. 로지스틱 회귀 모델, 의사결정나무 및 랜덤 포레스트를 사용하여 가명처리의 적용 정도와 가명처리된 데이터 분석의 정확도 간의 관계를 정량적으로 평가하였으며, 이를 통해 민감한 정보의 가명처리가 데이터 분석의 정확도를 크게 손상시키지 않으면서도 개인정보보호를 실현할 수 있음을 확인하였다. 그러나, 단일한 샘플 데이터, 일관된 가명처리 비율의 적용 등의 한계가 있음을 인지하였다. 이러한 한계를 극복하기 위해, 다양한 데이터에 대한 추가적인 연구를 통하여 결과의 일반성을 강화하는 것이 필요하다. 또한, 개별 변수에 대해 최적의 가명처리 비율을 찾는 방법론을 개발하고 적용해 볼 것을 제안한다. 이 연구 결과는 규제 준수와 개인정보 보호를 달성하면서도 데이터의 활용성을 유지하는 방법에 대한 새로운 통찰을 제공한다.

• Environmental Analysis Health and Toxicology
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• 제17권3호
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• pp.197-205
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• 2002

Volatile organic compounds (VOCs) are an important public health problem throughout the world. Many important questions remain to be addressed in assessing exposure to these compounds. Because they are ubiquitous and highly volatile, special techniques must be applied in the analytical determination of VOCs. Personal exposure measurements are needed to evaluate the relationship between microenvironmental concentrations and actual exposures. It is also important to investigate exposure frequency, duration, and intensity, as well as personal exposure characteristics. In addition to air monitoring, biological monitoring may contribute significantly to risk assessment by allowing estimation of absorbed doses, rather than just the external exposure concentrations, which are evaluated by environmental and personal monitoring. This study was conducted to establish the analytic procedure of VOCs in air, blood, urine and exhaled breath and to evaluate the relationships among these environmental media. The subjects of this study were selected because they are occupationally exposed to high levels of VOCs. Environmental, personal, blood, urine and exhalation samples were collected. Purge ＆ trap, thermal desorber, gas chromatography and mass selective detector were used to analyze the collected samples. Analytical procedures were validated with the“break through test”, 'quot;recovery test for storage and transportation”,“method detection limit test”and“inter-laboratory QA/QC study”. Assessment of halogenated compounds indicted that they were significantly correlated to each other (p value < 0.01). In a similar manner, aromatic compounds were also correlated, except in urine sample. Linear regression was used to evaluate the relationships between personal exposures and environmental concentrations. These relationships for aromatic and halogenated are as follows: Halogen $s_{personal}$ = 3.875+0.068Halogen $s_{environmet}$, ($R^2$= .930) Aromatic $s_{personal}$ = 34217.757-31.266Aromatic $s_{environmet}$, ($R^2$= .821) Multiple regression was used to evaluate the relationship between exposures and various exposure deter-minants including, gender, duration of employment, and smoking history. The results of the regression model-ins for halogens in blood and aromatics in urine are as follows: Halogen $s_{blood}$ = 8.181+0.246Halogen $s_{personal}$+3.975Gender ($R^2$= .925), Aromatic $s_{urine}$ = 249.565+0.135Aromatic $s_{personal}$ -5.651 D.S ($R^2$ = .735), In conclusion, we have established analytic procedures for VOC measurement in biological and environmental samples and have presented data demonstrating relationships between VOCs levels in biological media and environmental samples. Abbreviation GC/MS, Gas Chromatography/Mass Spectrometer; VOCs, Volatile Organic Compounds; OVM, Organic Vapor Monitor; TO, Toxic Organicsapor Monitor; TO, Toxic Organics.

• 한국산업보건학회지
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• 제29권3호
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• pp.336-342
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• 2019

Introduction: An unexpected death was reported in a beginner immediately after starting the work at a plating factory. After the incident, air sampling was performed using a simulation of the situation as it had been at the time. Methods: To evaluate the airborne concentration of hydrogen cyanide, a total of six samples were collected: one personal sample, three area samples, and two background samples (office and outdoors). Hydrogen cyanide measurement was performed according to the standard sampling protocol recommended by the U.S. NIOSH (National Institute of Occupational Safety and Health). Results: The highest concentration of hydrogen cyanide was 0.938 ppm measured in a sample collected from the plating bath area with local exhaust ventilation. This value was approximately 20% of the ceiling occupational exposure limit. The personal sample showed a concentration of 0.135 ppm. Samples collected near the bath in which the incident occurred and a dehydrator showed hydrogen cyanide concentrations of 0.236 ppm and 0.101 ppm, respectively. Hydrogen cyanide was not detected in the background samples (office and outdoors). Conclusions: It is necessary to use proper ventilation systems and respirators in plating factories to prevent acute poisoning. Furthermore, it is important to educate and train new workers dealing with toxic substances.

• 한국산업보건학회지
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• 제33권2호
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• pp.156-170
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• 2023

Objectives: This study conducted practical training to improve the proper usage of personal protective equipment(PPE), which greatly impacts workplace safety and health management. Personal protective equipment education was conducted through active participation, without theoretical modules, and aimed to identify the effects of repeated practical education and determine ways to increase participant satisfaction. Methods: Study data were analyzed using the IBM SPSS Statistics ver.29 software. First, participants' general characteristics were analyzed with frequency analysis. Second, the normality and equality of variances (Leven's test) were tested for the dependent variables prior to statistical analyses to determine the use of parametric tests. In general, normality is assumed when the sample size is 30 or more per the central limit theorem (Park et al., 2014). As our sample size of health management workers was 43, normality can be assumed. However, to ensure rigor of the study, we examined skewness and kurtosis. The results confirmed that the data were normally distributed. Third, the effects of repeated PPE training were analyzed using paired t-tests. Fourth, differences in satisfaction with PPE training according to the safety and health job position and safety and health certification were analyzed with t-test and Welch's t-test. For parameters that did not meet the assumption of equal variances, the Welch's t-test was performed. Results: Repeated PPE training improved the educational outcomes, and the improvements were significant in the 1st and 2nd respiratory PPE and safety and hygiene PPE training evaluations (p<.001). In terms of safety and health job position, repeated training led to improvements in educational outcomes, with significant improvements observed among supervisors and specialized health management institution workers in the 1st and 2nd training evaluations (p<.005). In terms of safety certification, repeated training led to improvements in educational outcomes, with significant improvements observed among both certified and non-certified individuals (p<.005). Regarding satisfaction with PPE training according to safety and health job positions, specialized health management institution workers showed greater satisfaction than supervisors, with significant differences in the satisfaction for expertise of lecture, work relevance, and lecturer's attitude (p<.001). Regarding satisfaction with PPE training according to safety and health certification, satisfaction was higher among certified individuals, with significant differences in satisfaction for work relevance and lecture attitude (p<.05) Conclusions: PPE education should be recommended to be provided as practical training. Repeated training can enhance educational outcomes for individuals with inadequate knowledge and understanding of PPE prior to education. For individuals with high levels of pre-existing knowledge and understanding of PPE, the results show that various training experiences should be provided to enhance their satisfaction. Therefore, it suggests that the workplace should actively seek educational media and methods to acquire expertise and skills in wearing personal protective equipment and improve the ability to use

• Asia pacific journal of information systems
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• 제25권4호
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• pp.662-685
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• 2015

The use of global mobile technology has increased exponentially. In particular, a survey of consumers in the Philippines showed that 83% "could not live" without their mobile phones. We investigated factors, such as ease of use and personal innovativeness, to elucidate the consumer adoption of mobile technologies in the Philippines, to integrate existing adoption theories for academics and provide recommendations to practitioners based on our findings. Our research questions are as follows: (1) What key factors drive adoption of mobile technologies by Filipino consumers?; (2) Are Filipino consumers innovative in their use of mobile technologies?; And (3) How can telecom companies retain their customers? A structural equation model, which was built from a survey of 528 mobile Filipino consumers, showed support for repurchase intention to use mobile technologies. The hypotheses were generally supported by variables related to mobile phone usage with the Philippine consumer sample. Results support all of the hypothesized relationships for consumers using mobile technologies. Personal innovativeness did load on both attitude and repurchase intention for mobile applications as originally hypothesized but was strongly loaded for attitude toward using. This research is a first step in understanding the adoption of mobile applications by Filipino consumers. We initially hypothesized that consumer behavior toward mobile applications would involve constructs of innovativeness, ease of use, and satisfaction; however, we found that ease of use was less significant in understanding repurchase intention to use mobile technologies. Personal innovativeness was more important in explaining satisfaction with mobile application attitudes and repurchase intention. The Filipino context of this study also provides other interesting implications. As the Philippines transitions into a more international market, western products start to guide market behavior, particularly consumer adoption.

• 한국보건간호학회지
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• 제9권1호
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• pp.1-16
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• 1995

The purpose of this study was to find out and analyze the satisfaction degree related to job by general characteristics, satisfaction factors. This survey was based on the questionnaire method. The sample consisted of 51 noncommissioned officers, 72 administrative officers and 160 nurse officers from army hospitals. The data were collected from March 14 to April 18, 1994 and statistically analysed by percentage, mean and $x^2$ test. Factors of job satisfaction consist of 6 categories; job pristige, interaction, autonomy, task requirements, pay, and organizational requirements. The overall job satisfaction degree was $62.8\%$ in NCOs, $54.2\%$ in administrative officers and $33.3\%$ in nurse officers. The job satisfaction of NCCs increased in factors of job prestige (p<0.01), autonomy (p<0.05), task requirement (p<0.05), and was higher as age. There were statistically significant in the factors of pay in school background, Job prestige in rank (p<0.05). 'I'm OK and You're OK' type was $76.5\%$ which was the highest rate and A major personal traits also showed the highest job satisfaction $(63.7\%)$. There were significant difference between major personal traits and interaction (p<0.01), autonomy (p<0.05), organizational requirement (p<0.01), pay (p<0.05) and task requirement. The job satisfaction of administrative Officers was represented significant differences in factors of pay (p<0.05), task requirements (p<0.05) by school background. Long term Workers showed the highest job satisfaction and significant difference in factors of job prestige and organizational requirement (p<0.01). Job satisfaction in 'I'm OK but you're not OK' type was slightly high, and CP major personal traits also showed the highest job satisfaction. The job satisfaction of nurse officers was represented significant difference in factors of autonomy (p<0.01), job prestige (p<0.05), organizational requirement (p<0.05), and pay by age. In CP major personal traits. job satisfaction showed the highest rate (75.0)

• 지식경영연구
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• 제19권3호
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• pp.31-46
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• 2018

Despite the organizational benefits of knowledge sharing among employees, many workers are reluctant to share their knowledge with their colleagues. Most organizations have taken a lot of actions to facilitate knowledge sharing among employees, including developing reward systems, enhancing social networks and interpersonal relationships and crafting organizational cultures that support knowledge sharing. To date, however, earlier studies have demonstrated that knowledge doesn't flow easily when an organization makes a concerted effort to facilitate knowledge sharing. The issue whether or not employees are motivated to share their knowledge with others is definitely the main concern in knowledge sharing. The purpose of this study is to explore the conditions under which employees are inclined to share knowledge with other members. Specifically, we examine the effect of knowledge self-efficacy on knowledge sharing intention. In addition, we attempt to investigate medicating effects of personal outcome expectation and performance-related outcome expectation on the relationship between knowledge self-efficacy and knowledge sharing intention. To test the proposed hypotheses in our study, we collected data via a survey with a sample of 210 employees in 23 firms in Korea. The major findings of the empirical research are as follows: 1) knowledge self-efficacy was positively related with knowledge sharing intention. 2) personal outcome expectation has turned out to have a mediation effect on the relationship between knowledge self-efficacy and knowledge sharing intention. 3) performance-related outcome expectation also mediates the relationship between knowledge self-efficacy and knowledge sharing intention That is, this result indicates that knowledge self-efficacy has indirect effect on knowledge sharing intention through personal outcome expectation and performance-related outcome expectation. Based on these findings, implications of the research findings and recommendation for future research are discussed.

• 한국컴퓨터산업학회논문지
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• 제4권12호
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• pp.999-1012
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• 2003

소프트웨어 개발자가 우수한 품질의 소프트웨어를 생산하기 위해서는 먼저 소프트웨어 품질에 대해서 확실하게 인지하고 있어야만 하며, 고품질의 소프트웨어는 개발자의 사소한 실수도 포함 되어서는 안된다. 프로그램을 개발하는 모든 소프트웨어 엔지니어들은 모두가 다른 개발 습관을 가지고 있으며, 각자의 개발 방법을 개선하기 위한 노력 또한 모두가 다르다. 보다 효율적인 소프트웨어 개발이 되기 위해서는 모든 개발자들은 자신이 현재 진행하고 있는 작업에 대한 개발 계획을 수립해야 하는데, 이러한 개발 계획은 반드시 자신의 과거 개발 경험에 근거한 개발 계획이어야 한다는 것이다. 소프트웨어 개발자가 이러한 경험 요소를 반영하여 자신의 개발 능력을 지속적으로 향상시키기 위해서는 사전에 잘 정의되고 평가가 가능한 개선 방법을 사용해야만 한다. Personal Software Process(PSP)는 소프트웨어 엔지니어가 자신의 작업을 조절하고 관리하여 그들의 작업 방식을 개선할 수 있도록 지원하기 위한 것이다. PSP에서는 소프트웨어를 개발하기 위해 필요한 각종 양식, 이 양식을 작성하기 위한 작성법, 그리고 개발 절차가 포함되어 있다. PSP를 적절하게 사용한다면, PSP는 개발자에게 과거의 경험 자료를 축적하고 분석한 결과를 제공함으로써 개발을 진행함에 있어 요구되는 여러 가지 개발 계획을 효과적으로 수립하고 이를 준수할 수 있도록 해 줄 수 있다. 따라서 PSP는 프로그래밍 언어 교육 과정에 있는 학생들에게 프로그램 훈련을 시키기에 아주 유용한 도구이다. 본 논문에서는 PSP에 대한 전체적인 개념을 설명하고 각종 프로그래밍 언어 교육 과정에서 PSP를 적용하는 방안을 제시한다.

• 대한통합의학회지
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• 제8권2호
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• pp.149-157
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• 2020

Purpose : The purpose of this study was that For high school students in Busan, in order to provide basic data in selecting dental hygienists by establishing the correct perception and image of dental hygienists by identifying the image of dentists and career doctors who will choose dental hygienists. Methods : The comparison of group differences with dental hygienists' images was analyzed with independent sample t-test and one-way ANOVA. Correlation between image factors of dental hygienists was analyzed using Pearson's correction coefficient. Results : The image for dental hygienists averaged 3.87 points overall, while the average for each area of the image was 4.09 points for professional images, 4.07 points for business images, 4.08 points for personal images and 3.28 points for social images. When choosing a career path, 18.8 percent said they would not consider dental hygiene, and if they said they would consider dental hygiene, both work, professional, personal and social images were significantly high (p<.05). Professional and professional images (r=.975, p<.05) in the correlation between factors of dental hygienist images, personal and professional images (r=.942, p<.05), social and professional images (r=.865, p<.05), business and personal images (r=.924, p<.05), business image and social image (r=.858, p<.05), personal and social images (r=.882, p<.05) expressed a statistically significant amount of correlation. Conclusion : The study found that high school students' image of dental hygienists was rather positive, but their social image was rather low, and most students did not consider dental hygiene. Therefore, specific measures will be needed to build a desirable image for dental hygienists and positively recognize dental hygienists with active promotion and career experience for dental hygienists in the future.