• 경영정보학연구
• /
• 제22권4호
• /
• pp.135-161
• /
• 2020

블록체인과 가상통화 관련 시장의 성장과 함께 가상통화거래소는 하나의 신규 산업으로 성장하고 있다. 그러나, 가상통화에 대한 법·규제적 정의가 진행 중에 있어서 기존 산업과 다르게 규제기관의 관리감독을 받지 않고 있으며, 이에 따라 본 연구는 거래소 해킹 및 사고로 인한 사용자(가상통화 투자자)의 피해가 다수 보고되었다. 가상통화거래소에서 발생할 수 있는 피해를 개인정보 및 계정의 탈취로 인한 자산 피해와 사용자가 외부 사기사건 등에 연루되어 발생할 수 있는 피해로 구분하여 연관성이 높은 기능을 선행 사업자와 비교 분석하였다. 회원가입(KYC: Know Your Client), 로그인, 거래 추가인증은 선행 사업자와 유사한 수준이나, 이상거래탐지(FDS: Fraud Detection System), 법화 및 가상통화 자금세탁방지(AML: Anti-Money Laundering)는 미흡한 수준으로 조속한 개선이 필요할 것으로 파악되었다.

• 한국병원경영학회지
• /
• 제28권4호
• /
• pp.62-72
• /
• 2023

Based on the basic ideology of health care, this study realized the seriousness of annual unmet medical need and conducted a study to confirm the relationship between the subjective perception of regional healthcare environment and unmet medical needs. The independent variable was classified into attitude 'satisfaction' and 'unsatisfaction' toward regional healthcare, and the dependent variable was classified as whether unmet medical needs occurred annually. Based on previous studies, the control variables were selected as demographic and socioeconomic characteristics that can affect the occurrence of unmet medical care annually and characteristics related to health behavior. Descriptive statistics were conducted for each variable on the extracted sample, and multivariate survey logistic regression analysis was conducted to confirm the association between variables. As a result, more unmet medical needs occurred annually than those who were satisfied with the medical services in the area where they lived. In addition, more unmet medical need occurred annually in "unsatisfied" households compared to households "satisfied" with local medical services. In residential areas, women live in "metropolis" and "rural areas" compared to "urban," women live in men, lower education levels, and poor subjective health levels, and less satisfied with local medical services. As such, the impact of environmental factors in the community on the use of health and medical services is one of the major areas of interest in the field of health science, such as health policy and social dynamics. Therefore, hospitals in each region need to make efforts in terms of hospital management to increase the overall satisfaction of medical services in the region by continuously monitoring the attitude of residents to achieve universal health security, and policymakers should also be interested and propose new policies.

• 한국군사과학기술학회지
• /
• 제27권1호
• /
• pp.8-14
• /
• 2024

In this study, the scale of renewable photovoltaic(PV) panels and hydrogen fuel storage facilities required to achieve "net zero carbon emissions" in military facilities were predicted based on actual electricity consumption. It was set up to expect the appropriate installation size of PV panel and hydrogen fuel storage facility for achieving carbon neutrality, limited to the electricity consumption in the public sector, including national defense and social security administration in Yeongcheon. The experimental results of this paper are largely composed of two parts. First, representative meteorological factors were considered to predict solar power generation in the Yeongcheon area, and solar power generation was estimated through a multiple regression model using deep learning techniques. Second, the size of solar power generation facilities and hydrogen storage facilities in military bases was estimated with the amount of solar power generation and electricity consumption. As a result of this analysis, it was calculated that a site of 155.76×104 m² for PV panels was needed and a facility capable of storing 27,657 kg of hydrogen gas was required. Through these results, it is meaningful to demonstrated the prospect that military units can lead the achievement of "carbon net zero 2050" by using PV panels and hydrogen fuel storage facilities on idle sites of military bases.

• 아태비즈니스연구
• /
• 제14권4호
• /
• pp.175-189
• /
• 2023

Purpose - The purpose of this study was to examine the relationship between CEO name uncommonness and R&D intensity while focusing on CEO ownership and CEO tenure as moderators of the relationship. Design/methodology/approach - This study collected data from various American databases such as national data on given names from Social Security Administration, COMPUSTAT, and Execucomp. The sample of this study includes 2,494 (firm-year) observations from U.S. firms between 2005-2011. This study conducts Feasible Generalized Least Square (FGLS) regression analysis to test the hypotheses. Findings - First, we found CEO name uncommonness was positively related to R&D intensity. In other words, CEOs with unusual names prefer being distinctive by increasing R&D investments. Second, we examine the moderating roles of CEO characteristics (i.e., CEO ownership and tenure). The results show that CEO tenure strengthens the positive relationship between CEO name uncommonness and R&D intensity. Research implications or Originality - First, this study extends the CEO characteristics and R&D literature by investigating how CEO name uncommonness affects R&D intensity. In addition, our study also supports the intitutionalization of CEO power arguments by showing that CEOs with unusual names are more likely to pursue distinctive strategies when they have longer tenure. For practical implications, our results allow the investors to better predict corporate future R&D expenses. It suggests that ceteris paribus, CEOs with unusual names, vis-a-vis CEOs with common names, are more likely to increase R&D expenses.

• Animal Bioscience
• /
• 제37권4_spc호
• /
• pp.730-741
• /
• 2024

Pig production is one of the viable enterprises of the livestock sub-sector of agriculture. It contributes significantly to the economy and animal protein supply to enhance food security in Africa and globally. This article explored the present status of pig production in Africa, the challenges, prospects and potentials. The pig population of Africa represents 4.6% of the global pig population. They are widely distributed across Africa except in Northern Africa where pig production is not popular due to religio-cultural reasons. They are mostly reared in rural parts of Africa by smallholder farmers, informing why majority of the pig population in most parts of Africa are indigenous breeds and their crosses. Pig plays important roles in the sustenance of livelihood in the rural communities and have cultural and social significance. The pig production system in Africa is predominantly traditional, but rapidly growing and transforming into the modern system. The annual pork production in Africa has grown from less than a million tonnes in year 2000 to over 2 million tonnes in 2021. Incidence of disease outbreak, especially African swine fever is one of the main constraints affecting pig production in Africa. Others are lack of skills and technical know-how, high ambient temperature, limited access to high-quality breeds, high cost of feed ingredients and veterinary inputs, unfriendly government policies, religious and cultural bias, inadequate processing facilities as well as under-developed value-chain. The projected human population of 2.5 billion in Africa by 2050, increasing urbanization and decreasing farming population are pointers to the need for increased food production. The production systems of pigs in Africa requires developmental research, improvements in housing, feed production and manufacturing, animal health, processing, capacity building and pig friendly policies for improved productivity and facilitation of export.

• Wind and Structures
• /
• 제39권1호
• /
• pp.1-14
• /
• 2024

Widespread damages from extreme winds have attracted lots of attentions of the resilience assessment of power distribution systems. With many related environmental parameters as well as numerous power infrastructure components, such as poles and wires, the increased challenge of power asset management before, during and after extreme events have to be addressed to prevent possible cascading failures in the power distribution system. Many extreme winds from weather events, such as hurricanes, generate widespread damages in multiple areas such as the economy, social security, and infrastructure management. The livelihoods of residents in the impaired areas are devastated largely due to the paucity of vital utilities, such as electricity. To address the challenge of power grid asset management, power system clustering is needed to partition a complex power system into several stable clusters to prevent the cascading failure from happening. Traditionally, system clustering uses the Binary Decision Diagram (BDD) to derive the clustering result, which is time-consuming and inefficient. Meanwhile, the previous studies considering the weather hazards did not include any detailed weather-related meteorologic parameters which is not appropriate as the heterogeneity of the parameters could largely affect the system performance. Therefore, a fragility-based network hierarchical spectral clustering method is proposed. In the present paper, the fragility curve and surfaces for a power distribution subsystem are obtained first. The fragility of the subsystem under typical failure mechanisms is calculated as a function of wind speed and pole characteristic dimension (diameter or span length). Secondly, the proposed fragility-based hierarchical spectral clustering method (F-HSC) integrates the physics-based fragility analysis into Hierarchical Spectral Clustering (HSC) technique from graph theory to achieve the clustering result for the power distribution system under extreme weather events. From the results of vulnerability analysis, it could be seen that the system performance after clustering is better than before clustering. With the F-HSC method, the impact of the extreme weather events could be considered with topology to cluster different power distribution systems to prevent the system from experiencing power blackouts.

• 대한간호학회지
• /
• 제4권2호
• /
• pp.17-31
• /
• 1974

Today, over seventy five percent of nursing in Korea provide a psychiatric experience in the basic curriculum. The psychiatric affiliation presents numerous major problems of adjustment to the student. The Importance of positive attitude toward the nursing care of psychiatric patients is recognized by the nursing profession. I have fined out the unfavorable attitude of non collegiate nursing students toward psychiatric nursing affiliation by previous research. This study was undertaken in response to a felt need to explore the use of several devices which might yield information about attitudes toward psychiatric nursing as a basis for future planning of the program offered at a selected hospital. This study is designed to meet the following objectives; (1) In order to find out the expressed attitudes of fifty·three collegiate nursing students toward their psychiatric affiliation. (2) To compare responses given by selected group of collegiate and non collegiate nursing students to same questionnaire (3) To determine the relationship between the attitudes of nursing students toward psychiatric nursing and the type of instructions where experience was obtained. A questionnaire, a Korean translation of the "Psychiatric Nursing Attitude Questionnaire" by Moldered Elizabeth fletcher, was administered to fifty-three collegiate nursing students who had completed a four-week psychiatric affiliation in a S hospital psychiatric ward during May 7, 1973 to Dec. 16, 1973. - The questionnaire of 100 statements was administered in the following way; (1) Part Ⅰ, Preconceptions, was, given in individual conferences with each subject, during the first few days of their affiliation, and again during the final week of affiliation. The responses to Part I were oral. (2) Part Ⅱ, Expectations, Part Ⅲ, Personal Relations, Part Ⅳ, Personal Feelings, and Part V, Attitudes and Activities of Patients were given to all of the subjects in a group meeting during the second week of the affiliation, and again, during the fourth week at the termination of the affiliation. Responses to Parts Ⅱ, Ⅲ, Ⅳ·, and V, were written. Each of the 100 statements of the questionnaire was considered to be either Positive or Negative. A favorable response was assigned the positive value of 1 and an unfavorable response was assigned the Negative value of O. The coefficient of correlation was computed between the two sets of scores for the fifty-three nursing students, The mean score, the standard deviation, and the differences in the means on each of the five parts of the questionnaire were computed and the relationships calculated by at-test. The results of the study were as follows; 1. There was no significant correlation between the two sets of the scores for the fifty-three nursing students during the four-week psychiatric affiliation. (r= 0.36) 2. There was no significant difference in the mean scores between the first and final tests for any of the questionnaire. 3. The Part Ⅰ, Preconceptions, data indicated collegiate nursing students have positive attitudes in preconceptions than non collegiate nursing students and preconceptions toward the psychiatric affiliation which affect their psychiatric nursing experience. 4. The Part Ⅱ, Expectations, data indicated more appropriate expectations of collegiate nursing students related to pre psychiatric affiliation orientation and sufficient theory learning than non-collegiate nursing students. 5. The Part Ⅲ, Personal relations, data indicated some students have negative attitudes in personal relations with normal people in respect to psychological security and social responsibilities. 6. The Part Ⅳ, Personal feelings, data indicated nursing students have psychological insecurity & inappropriateness. 7. The Part V, Attitudes and activities of patients, data indicated collegiate nursing students have more positive attitudes to the psychotic behavior of certain situations due to sufficient theory learning. 8. The data indicated collegiate·nursing students have more positive attitude than non-collegiate nursing students. 5. The Part Ⅲ, Personal relations, data indicated some students have negative attitudes in personal relations with normal people in respect to psychological security and social responsibilities. 6. The Part Ⅳ, Personal feelings, data indicated nursing students have psychological insecurity & inappropriateness. 7. The Part V, Attitudes and activities of patients, data indicated collegiate nursing students have more positive attitudes to the psychotic behavior of certain situations due to sufficient theory learning. 8. The data indicated collegiate·nursing students have more positive attitude than non-collegiate nursing students through psychiatric affiliation.

• 보건교육건강증진학회지
• /
• 제26권5호
• /
• pp.57-70
• /
• 2009

목적: 이 연구는 맞벌이 가정의 부친의 육아참가 발생과정을 인과관계모델로 구축하여 이 모델에 대한 데이터로의 적합성에 대해 검토하는 것을 목적으로 하였다. 방법: 조사대상은 I 현 A,B시, II현 C시의 어린이집 21곳과 유치원 4곳을 이용하는 2,006세대(A시:499세대, B시:1113세대, C시:98세대)의 부친으로 하였다. 조사내용은 부친의 연령, 학력, 자녀수, 막내자녀나이, 부모역할관, 1일 노동시간, 귀가시간, 육아참가로 구성하였다. 결과: 부친의 육아참가 발생과정 모델의 데이터로의 적합성에 대해 검토한 결과, 적합도 지표는 CFI=0.912, RMSEA=0.082였다. 경로계수를 살펴보면, 막내자녀나이에서 긍정적 부모역할관으로 향하는 경로계수는 0.08, 긍정적 부모역할관에서 육아참가로 향하는 경로계수는 0.19로 통계학적으로 유의하였다. 또한 저해요인으로서 상정한 귀가시간과 1일 노동시간은 부친의 긍정적/부정적 부모역할관으로부터 영향을 받지 않고, 육아참가에 직접효과를 나타내었다. 이때, 귀 시간에서 육아참가로 향하는 경로계수는 -0.43, 노동시간에서 육아참가로 향하는 경로계수는 -0.13, 귀가시간과 노동시간 간의 상관계수는 0.80이었다. 결론: 이상의 결과를 통해 본 연구에서 제기한 모델의 타당성을 증명하였고, 부친의 육아참가 발생 매커니즘에 관한 기초자료로 활용될 수 있음을 시사한다.

• 시큐리티연구
• /
• 제42호
• /
• pp.393-422
• /
• 2015

학교는 학생의 효과적인 학업성취와 지적능력 개발을 위해 공교육을 실현하는 거점임과 동시에 최전선의 위치를 담당하고 있다. 비단 학업뿐만 아니라 사회의 한 구성원으로써 타인과 함께 하기위한 배려와 이해의 폭을 넓혀주는 공간이기도 하다. 그러나 우리나라 학교교육의 현실은 타인을 배려하고 책임감을 느끼는 삶의 태도와 관련된 인성교육에 대해서는 부족한 면이 많다는 지적을 받고 있다. 한 개인이 성인으로 성장해 나가는 데에는 지적능력뿐만 아니라 정서적인 측면이 반드시 필요하고, 학교에서는 그와 관련된 다양한 방법을 가르치는 것이 의무화되어 있다. 그럼에도 불구하고 우리나라 중등교육은 교사들의 과도한 행정업무를 비롯한 기타 업무로 인해 인성교육의 과정이 소홀해 지거나 형식적인 활동을 벗어나지 못하고 있다. 이러한 영향으로 학생들의 문제적 행동을 개선하지 못하는 결과를 가져왔으며, 결국 학교폭력과 같이 타인에게 직접적인 피해를 주는 심각한 사회문제를 야기한 측면이 있다. 따라서 이 연구는 교육학과 범죄학의 청소년비행 행위에 기초하여 인성의 개념을 구체화하고 학교폭력과의 관계를 경험적 연구를 통해 검증하고자 하였다. 이에 따라 2013년 7월 1일부터 2013년 9월 31일 까지 전국 277개교에 재학 중인 고등학교 3학년 학생들 중 경기도에 소재한 K대학의 입학설명회 및 모의전형에 참여한 학생들 중 무응답과 분석에 사용할 수 없다고 판단된 자료를 제외하고 최종분석에서 총 1045명의 자료가 활용되었다. 그 결과 학교폭력 피해경험이 많고, 남자학생일 수 록 학교폭력의 가해 경험이 많을 것으로 나타났다. 또한 건강한 학생일수 록 학교폭력의 가해경험이 많고, 분노조절과 공감, 배려의식이 낮은 학생이 학교폭력의 가해경험이 많은 것으로 나타났다.

• 시큐리티연구
• /
• 제40호
• /
• pp.209-242
• /
• 2014

이 연구는 사회적 문제로 부각되고 있는 초등학교 범죄예방을 위해 학부모를 대상으로 범죄예방설계(CPTED)요소 인식에 대한 분석을 통해 CPTED의 전략적 요소들이 학생들의 대상 범죄를 효과적으로 예방하는데 도움이 될 수 있는지 이해하고 정책적 제언과 방향 제시에 필요한 기초자료를 제공하려는데 그 목적이 있다. 그러한 연구목적의 달성을 위해 이 연구에서는 핵심적인 틀(Framework)로써 중요도-실행도 분석(IPA: Importance-Performance Analysis)을 선택하였다. 연구의 대상자는 1차 조사 집단은 2010년 경주시 초등학교 학부모 203명과 2차 조사 집단은 2014년 동 지역 초등학교 학부모 297명을 유목적 표집(Purposeful Sampling)으로 선정하였다. 이 연구에서 사용한 설문지는 Martilla & James(1977)가 제시하였던 "중요도-실행도 분석(Important-Performance Analysis: IPA)" 기법을 적용하여 초등학생 학부모들을 대상으로 학생의 범죄예방을 위한 CPTED 전략요소에 대한 인식을 분석하였다. 중요도의 신뢰도(Cronbach's ${\alpha}$)는 1차 집단 0.886, 0.920, 0.895와 2차 집단 0.880, 0.906, 0.878 이었으며, 실행도의 신뢰도는 1차 집단 0.880, 0.917, 0.878과 2차 집단 0.735, 0.840, 0.830이었다. 자료의 분석은 빈도 분석, 신뢰도 분석, 기술통계 분석 및 대응표본 t-Test를 실시하였다. IPA 실행격자를 통해 분석한 바, 초등학교 학부모들의 CPTED 전략요소에 대한 중요도는 전반적으로 매우 높았지만 그 성취도는 구성요소에 따라 편차가 있는 것으로 나타났다. 연구결과, 초등학교 건물 내 외부에서 학생을 대상으로 한 범죄의 불안감을 해소할 수 있는 범죄예방 설계(CPTED)의 중요한 전략요소는 1차 집단의 기계적 감시, 조직적 감시, 그리고 영역성 강화이며 2차 집단의 조사에서 기계적 조직적 요인으로 나타났으며, 경비인력 확충과 정문에 범죄예방 중요요소들 높은 중요도 비해 실행도가 낮아서 시급히 투자가 요청되고 있다고 하겠다. 이 연구의 분석결과는 학생들의 범죄예방을 위해 범죄예방 설계(CPTED) 전략요소를 규명하고 향후 초등학교에서 CPTED의 구성요소를 효과적으로 적용하는 정책적 방향 제시에 기초자료를 활용될 수 있기를 기대한다.