This study aims to verify the impact of a metaverse-based safety education program on the fire safety awareness of elementary school students. Utilizing the National Fire Agency's 119 metaverse program, an educational program was implemented for two months, and the experimental group was examined using paired-sample t-tests, while comparisons with the control group were made using independent-sample t-tests. The results revealed statistically significant differences between the experimental and control groups in the area of fire prevention. Although no statistically significant differences were observed over time within each group, the overall average scores for the entire class improved across all areas. Based on these findings, the effectiveness of metaverse-based safety education is suggested; however, a significant difference compared to traditional education was not detected. The study concludes by exploring implications for considerations in the implementation of metaverse safety education in the future.

본 연구의 목적은 세대통합 프로그램의 일환으로 노인에 대 한 직접 체험 교육인 노인생애체험 프로그램이 노인에 대한 태 도, 지식, 이미지 변화에 미치는 영향과 관계에 대하여 그 효과 성을 검증하는 데 있다. 연구 목적 달성을 위해 노인생애체험 센터에 노인생애체험을 신청한 대학생들을 대상으로 연구 취지 에 동의하고 설문지에 성실히 답한 205명을 선정하여 노인생애 체험 사전, 사후에 설문조사를 시행하였다. 자료 분석은 노인생애체험 사전, 사후에 노인에 대한 태도 및 지식의 평균 차이를 대응표본 t 검증으로 분석하였고, 이미 지 변화와의 관계는 상관관계 분석을 통하여 Pearson의 상관계 수를 도출하였으며 주요 변인들간의 관계와 영향은 다중 회귀 분석을 통해 검증하였다. 본 연구의 주요 결과를 요약하면 다음과 같다. 첫째, 대학생들의 노인에 대한 태도는 노인생애체험 사전, 사 후 전반에 걸쳐 유의한 평균의 차이를 보였으며(t=-5.876***, p<.000) 하위 유형별로 긍정에서는 유의한 평균의 차이가 나타 나지 않았지만 부정과 중립에서는 부정에서 중립 혹은 긍정으 로 변화하는 항목들과 중립에서 긍정으로 변화한 항목들에서 유의한 평균의 차이가 나타났다. 둘째, 대학생들의 노인에 대한 지식은 노인생애체험 사전, 사 후에 유의한 평균의 차이를 보였고(t=-7.773***, p<.000) 지식 의 하위 유형인 신체적/생리적, 심리적, 사회적 영역에 대하여 영역별로도 유의한 평균 차이를 보였다. 셋째, 노인생애체험 이후 노화에 대한 이해와 긍정적 이미지 변화에 도움이 되었는지에 대하여 ‘매우 그렇다’고 답한 대학생 들의 분포가 평균 74%의 빈도를 보여 노인생애체험이 노인에 대한 이미지 변화에 긍정적인 영향을 미치는 것으로 나타났다. 넷째, 대학생들의 개인적인 특성과 일반적인 특성에 의해 노인에 대한 태도, 지식, 이미지 변화에 영향을 미치는 다른 변인 이 있는지 찾고자 특성별 기술통계 분석을 한 결과, 유의한 결 과 차이를 보이는 특성을 찾지 못하였다. 다섯째, 주요 변인들간의 관계와 영향을 알아보기 위하여 다 중 회귀분석으로 검증한 결과, 노인에 대한 태도 및 지식의 하 위 유형 변인들과 노인에 대한 이미지 변화의 하위 유형 변인 들간의 관계에서 부분적으로 유의한 결과가 나타났다. 이에 본 연구에서는 노인생애체험이 노인과 노화에 대한 이 해를 증진시키고 노인에 대한 태도, 지식, 이미지 변화에 긍정 적인 영향을 미치며 이미지의 신체적・생리적, 사회적 변화와 그에 따른 심리 및 정서적 변화에 긍정적 영향으로 노인에 대 한 이해, 공감, 소통으로 이어지는 세대통합증진 프로그램으로 그 의의가 있다고 본다.

In recent years, there has been a growing trend of occupational accidents involving foreign workers. As the number of foreign workers continues to increase, the risk of occupational accidents is also on the rise. Therefore, it is crucial to take proactive measures to prevent occupational accidents among foreign workers. To establish a common safety culture among foreign workers with varied backgrounds and educational experiences, and which is harmonized with Korean workplace. Safety communication, which includes culture respect and participation in the workplace, plays a significant role in shaping and developing the safety culture of foreign workers. Therefore, this study aims to assess the level of safety culture in workplace employing foreign workers by analyzing the reliability and validity of factors such as 'occupational accident awareness' and 'safety communication,' which constitute the safety culture at these workplace. Additionally, the mediating effect of 'work proficiency' on the relationship between 'safety communication' and the level of improvement in 'occupational accident awareness' using the validation method proposed by Baron & Kenny(1986). As a result of statistical analysis, The influence of‘safety communication’on‘occupational accident awareness’is β=0.339, and it has been found that this influence decreases to β=0.113 when‘work proficiency’is introduced, indicating partial mediation.

동사성 어소와 명사성 어소로 구성된 복합동사(Noun Incorporation, 다음은 NI 합성어로 표 시) 언어 유형학 연구에서 많은 주목을 받았는데, 그 중 가장 큰 영향을 미친 것은 Mithun (1984)이 문법 담화 기능에 따라 제안한 NI 복합어의 네 가지 유형이었다. 중국어의 NI복합어는 매우 풍부하다. 본고는 선인들의 연구를 바탕으로 이런 단어를 유형학의 틀에 포함시켰다. 그 성분 관계, 결합가 변화, 기타 성분과의 대응 등 특징을 고찰함으로써 중국어의 NI복합어는 Mithun이 제기한 Ⅰ, Ⅱ, Ⅳ류 기능을 가진다는 것을 발견했다. 또한 본고는 역사적인 측면에서 NI복합어의 다른 유형 특징, 예를 들어 진화 경로, 내포 등급, 통합 정도 등을 검증했다. 중국어에 서 NI복합어의 역사적 변화는 보편적인 규칙에 부합되지만 통합 정도에서 비교적 느슨하다는 것을 발견했다. 이것은 주로 중국어에서 NI복합어가 구사 구조와 문법 구조를 겸하고 있기 때문 이다.

This study analyzed the factors affecting the effectiveness of the Chemical Hazard Risk Management (CHARM). A survey was conducted on 104 learners who participated in the Risk Assessment training course at Occupational Safety and Health Training Institute. Through a self-administered questionnaire, the effect of personal characteristics, corporate characteristics, and safety and health level of the company on the effectiveness of chemical risk assessment was investigated. As a result of statistical analysis, the safety and health level of the company had a positive (+) effect on the effectiveness of Chemical Hazard Risk Management(CHARM), but personal characteristics and corporate characteristics had no relation to it. This study can be used as basic data for further research related to chemical risk assessment in workplaces.

This study analyzed effective capacity building education plans for public institution management supervisors. A survey was conducted on 635 management supervisors of public institutions (99 institutions) subject to the safety management rating system to understand the characteristics of educational participants and the impact of educational satisfaction on professionalism improvement after capacity building education. As a result of statistical analysis, the professional improvement according to the affiliation of educational participants was higher in the workplace and construction site divisions than in the research facility division, and the professional improvement according to the working period was higher for more than 15 years than for less than 5 years and less than 15 years. In addition, the quality of education had a significant positive (+) effect on the degree of professional improvement. This study can be used as basic data for further research related to capacity building education for public institution management supervisors

이 연구는 동물매개중재 프로그램이 학업 중단 위기 청소년의 우울과 불안에 어떠한 효과를 미치는지 살펴 보는데 목적이 있다. 이를 위하여 우울과 불안 척도를 사전, 사후 검사를 통하여 비교 분석하였다. 연구 결과 동물매개중재 프로그램이 학업 중단 위기 청 소년의 우울과 불안을 감소시키는데 긍정적인 효과를 나타낸다. 이러한 결과는 학교나 기관에서 우울과 불안 등의 정서적으로 어려움을 겪고 있는 학 업 중단 위기 청소년을 위한 프로그램을 개발하고, 운영하는데 유용한 정보로 활용될 수 있을 것이다.

As markets and industries continue to evolve rapidly, technology opportunity discovery (TOD) has become critical to a firm's survival. From a common consensus that TOD based on a firm’s capabilities is a valuable method for small and medium-sized enterprises (SMEs) and reduces the risk of failure in technology development, studies for TOD based on a firm’s capabilities have been actively conducted. However, previous studies mainly focused on a firm's technological capabilities and rarely on business capabilities. Since discovered technologies can create market value when utilized in a firm's business, a firm’s current business capabilities should be considered in discovering technology opportunities. In this context, this study proposes a TOD method that considers both a firm's business and technological capabilities. To this end, this study uses patent data, which represents the firm's technological capabilities, and trademark data, which represents the firm's business capabilities. The proposed method comprises four steps: 1) Constructing firm technology and business capability matrices using patent classification codes and trademark similarity group codes; 2) Transforming the capability matrices to preference matrices using the fuzzy function; 3) Identifying a target firm’s candidate technology opportunities using the collaborative filtering algorithm; 4) Recommending technology opportunities using a portfolio map constructed based on technology similarity and applicability indices. A case study is conducted on a security firm to determine the validity of the proposed method. The proposed method can assist SMEs that face resource constraints in identifying technology opportunities. Further, it can be used by firms that do not possess patents since the proposed method uncovers technology opportunities based on business capabilities.

고문읽기와 쓰기는 우수한 중국 전통 문화의 계승과 발전을 위한 기초 능력이다. 현재 고문 교육은 학습 효율이 낮고, 문턱이 높으며, 목적성이 부족하다는 세 가지 문제점이 존재한다. 고문읽기와 고문자에 대한 두려움은 많은 청소년들이 맞닥뜨리고 있는 실제 문제이다. 본 연구는 고대 중국어 교육의 특징과 실제에 근거하여 대규모 고적 코퍼스의 통계 작업을 통해 1,000개의 한자를 선정하였다. 한자의 자형, 자음, 자의, 용자 네 가지 측면에서 각 등급별 기준을 설정하고, 한자 학습의 우선순위를 반영하여 ｢고적한자등급자표古籍汉字分级字表｣를 개발하였다. 이 표 에는 1급 105자, 2급 340자, 3급 555자를 수록되어 있다. 청소년에게 고문 학습을 위해 한자학습 자료를 제공하는 것은 고적 한자의 점진적 학습을 도울 뿐 아니라 청소년이 가지고 있는 고문 학습에 대한 부담감을 줄여주고 고문 읽기 능력을 향상시켜 줄 것이다. 더 나아가 중국의 우수한 전통 문화를 계승하고 발전시키는 데 도움을 줄 것으로 기대한다.

As the demand for p-type semiconductors increases, much effort is being put into developing new p-type materials. This demand has led to the development of novel new p-type semiconductors that go beyond existing p-type semiconductors. Copper iodide (CuI) has recently received much attention due to its wide band gap, excellent optical and electrical properties, and low temperature synthesis. However, there are limits to its use as a semiconductor material for thin film transistor devices due to the uncontrolled generation of copper vacancies and excessive hole doping. In this work, p-type CuI semiconductors were fabricated using the chemical vapor deposition (CVD) process for thin-film transistor (TFT) applications. The vacuum process has advantages over conventional solution processes, including conformal coating, large area uniformity, easy thickness control and so on. CuI thin films were fabricated at various deposition temperatures from 150 to 250 °C The surface roughness root mean square (RMS) value, which is related to carrier transport, decreases with increasing deposition temperature. Hall effect measurements showed that all fabricated CuI films had p-type behavior and that the Hall mobility decreased with increasing deposition temperature. The CuI TFTs showed no clear on/off because of the high concentration of carriers. By adopting a Zn capping layer, carrier concentrations decreased, leading to clear on and off behavior. Finally, stability tests of the PBS and NBS showed a threshold voltage shift within ±1 V.

Recently, the electron transport layer (ETL) has become one of the key components for high-performance perovskite solar cell (PSC). This study is motivated by the nonreproducible performance of ETL made of spin coated SnO2 applied to a PSC. We made a comparative study between tin oxide deposited by atomic layer deposition (ALD) or spin coating to be used as an ETL in N-I-P PSC. 15 nm-thick Tin oxide thin films were deposited by ALD using tetrakisdimethylanmiotin (TDMASn) and using reactant ozone at 120 °C. PSC using ALD SnO2 as ETL showed a maximum efficiency of 18.97 %, and PSC using spin coated SnO2 showed a maximum efficiency of 18.46 %. This is because the short circuit current (Jsc) of PSC using the ALD SnO2 layer was 0.75 mA/cm2 higher than that of the spin coated SnO2. This result can be attributed to the fact that the electron transfer distance from the perovskite is constant due to the thickness uniformity of ALD SnO2. Therefore ALD SnO2 is a candidate as a ETL for use in PSC vacuum deposition.

Okadaic acid (OA) group toxins, including OA and its analogs, such as dinophysis toxins (DTXs), have been reported to cause diarrheal shellfish poisoning (DSP). These toxins are primarily produced by dinoflagellates and are accumulated in bivalves. Recently, the presence of Dinophysis sp., a causative alga of DSP, has been reported along the coasts of Korea, posing a potential risk of contamination to domestic seafood and exerting an impact on both the production and consumption of marine products. Accordingly, the European Food Safety Authority (EFSA) and the World Health Organization (WHO) have established standards for the permissible levels of OA group toxins in marine products for safety management. Additionally, in line with international initiatives, the domestic inclusion and regulation of DTX2 among the substances falling under the purview of management outlined by the 2022 diarrheal shellfish toxin standard have been implemented. In this study, we reviewed the physicochemical properties of OA group toxins, their various exposure routes (such as acute toxicity, genotoxicity, reproductive and developmental toxicity), and the relative toxicity factors associated with these toxins. We also performed a comparative assessment of the methods employed for toxin analysis across different countries. Furthermore, we aimed to conduct a broad review of human exposure cases and assess the international guideline for risk management of OA group toxins.

The IUU Fishing Index is composed of 40 indicators. These indicators were grouped by state responsibilities (flag, coastal, port, and general including market) defined in the FAO IPOA-IUU (2001) and then by type into vulnerability, prevalence, and response. A total of 152 coastal nations was surveyed. Korea's total combined IUU Fishing Index was 2.49 in 2019 and 2.91 in 2021, indicating a drop in the ranking to the third worst out of 152 countries followed by China and Russia in 2021. The indicators that increased the IUU fishing risk in 2021 compared to 2019 included seven indicators of prevalence and two indicators of response while those reducing the risk included one prevalence and one response indicator. The IUU Fishing Index revealed that many fisheries observers and monitoring, control and surveillance (MCS) practitioners active in the waters of RFMOs jurisdiction where Korean distant water vessels operate have mentioned concerns about the compliance with RFMO conservation measures or fishing practices. It suggested that strengthening management intervention in the fishing sector is needed. The primary tool for management is the MCS system. Given the logistical difficulty of oversight from land, air and at-sea, there is a need to enhance MCS strategies through logbook data, at-sea observer and electronic monitoring program. It also suggested that MSC fisheries certification and fisheries improvement projects, which are widely used for improving fishing sector performance, could contribute to the eradication of IUU fishing and the promotion of sustainable distant water fisheries.