• Journal of Nutrition and Health
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• 제37권3호
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• pp.223-235
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• 2004

A functional ability and adequate nutritional status are the major determinants of health status, Self-rated health (SRH) is a worldwide method to assess health status and it is recognized as a predictor of morbidity and mortality in the elderly, This study was designed to evaluate the functional ability and nutritional risk according to SRH in the elderly. Four hundred nine free-living elderly people (118 male, 291 female), aged $\geq$ 65 years were interviewed by trained interviewers using structured questionnaires including demographic information, SRH, anthropometric measurements, functional ability, general health status, and nutritional risk. SRH was divided into three status such as “Good”, “Moderate” and “Poor” status. And all the data were analyzed by oneway ANOVA, spearman correlation, and x$^2$ analysis using SPSS 9.0 version at p 〈 0.05. Of all the subjects, 48.9％ perceived their health status as “poor”, and their functional abilities (activities of daily living, instrumental activities of daily living) were more impaired than their counterparts (“good” and “moderate”). Poor self-rated health was also related to: a higher prevalence of illnesses (p 〈 0,001) especially in hypertension, arthritis. Self-rated health was significantly related to food security (p 〈 0.001), food enjoyment (p 〈 0.001) ,and nutritional knowledge (p = 0.0 13). Also NSI checklist total score was the highest in “poor” health status (p 〈 0.001). Better self-rated health was related to better food security, and better food enjoyment. However, smoking, alcoholic intake, exercise, eating behaviors, and demographic characteristics were not significantly different among the three SRH status. SRH was closely related to chronic diseases, functional ability, and nutritional risk in the elderly. Therefore, public health strategies for the elderly should be focused on the elderly who are “poor” in SRH, to improve nutritional status and functional ability, and to reduce risk factors of chronic diseases.

• 한국항공운항학회지
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• 제30권4호
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• pp.117-131
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• 2022

Human rights education is to acquire understanding and knowledge about human rights, to develop values, attitudes and character that respect human rights, to develop the ability to overcome human rights violations and discriminatory acts, and to protect and promote the human rights of others. In order to prevent human rights violations of the transportation vulnerable, such as the disabled, it is necessary to develop specialized human rights education plans for aviation security personnel to practice human rights perspectives. Therefore, in accordance with the 「National Civil Aviation Security Education and Training Guidelines」, specialized human rights education should be included in the initial aviation security education and regular education courses. The point is that there is a need to reexamine the aviation security education program for aviation security personnel based on the essential knowledge and educational contents for aviation security personnel to perform security screening tasks in the aviation security education course. When this happens, various efforts must be made to improve the human rights of the transportation vulnerable, such as the disabled, during the security screening process, so that human rights violations will be significantly reduced. In particular, it is necessary to enhance the ability to detect dangerous terrorist items such as weapons or explosives that can be used for illegal sabotage through practical security screening training. For aviation security and aircraft safety, efforts to improve the quality of aviation security personnel training, such as human rights training, must be continuously made while thoroughly preparing for terrorism in advance.

• 한국IT서비스학회지
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• 제12권1호
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• pp.289-308
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• 2013

This study proceeded to examine the cause of the continuous secret information leakage in the firms. The purpose of this study is to find out what type of security among administrative, technological and physical security would have important influence on firm's security performance such as the security-incident response competence. We established the model that can empirically verify correlation between those three types of security and the security-incident response competence. In addition, We conducted another study to look at relation between developing department of security in the firms and reaction ability at the accidents. According to the study, the administrative security is more important about dealing with the security-incident response competence than the rest. Furthermore, a group with department of security has better the security-incident response competence and shows higher competence in fixing or rebuilding the damage. Therefore, this study demonstrates that investing in administrative security will be effective for the firm security.

• 시큐리티연구
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• 제4호
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• pp.257-277
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• 2001

The purpose of this study was to examine effects of practicing martial arts upon job performance of employees engaged in security industry. For positive investigation, 400 employees were questioned using some questionnaires; as a result, we obtained the following conclusion of the relation between the extent of the practicing martial art and the ability of performing their jobs. First, the more they practice martial art, the better and higher their mental health and psychological stability more than control group. Especially, when crime is reported to them or they arrest a criminal taken in an act of crime, the degree of their anxiety was low and they strongly expose self-confidence, their view of moral achievement and their sense of morality. Second, the more they practice martial art, the higher their ability of arrestment a criminal in an act and self-defense is. Because practicing martial art make their vital power and physical strength promoted. Third, the more they practice martial art, the more sincere the trust and friendship among colleagues are. As well they seem to feel strong solidarity oneanother. But practicing martial art appeared that it doesnt have an effect on coping with complications among generations and the gaps between master sergeant and them. Fourth, employees engaged in security industry practicing martial art is not only used in job performance merely as a technique; it is also effective on the mind that it make their anxiety dissolved and give them self-confidence.

• 전기학회논문지
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• 제65권12호
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• pp.2240-2250
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• 2016

MIFARE Classic is the most popular contactless smart card, which is primarily used in the management of access control and public transport payment systems. It has several security features such as the proprietary stream cipher Crypto 1, a challenge-response mutual authentication protocol, and a random number generator. Unfortunately, multiple studies have reported structural flaws in its security features. Furthermore, various attack methods that target genuine MIFARE Classic cards or readers have been proposed to crack the card. From a practical perspective, these attacks can be partitioned according to the attacker's ability. However, this measure is insufficient to determine the optimal attack flow due to the refined random number generator. Most card-only attack methods assume a predicted or fixed random number, whereas several commercial cards use unpredictable and unfixable random numbers. In this paper, we propose optimal MIFARE Classic attack procedures with regards to the type of random number generator, as well as an adversary's ability. In addition, we show actual attack results from our portable experimental setup, which is comprised of a commercially developed attack device, a smartphone, and our own application retrieving secret data and sector key.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제13권2호
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• pp.978-1002
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• 2019

With the rapid development of the Internet of Things, the problem of privacy protection has been paid great attention. Recently, Nikooghadam et al. pointed out that Kumari et al.'s protocol can neither resist off-line guessing attack nor preserve user anonymity. Moreover, the authors also proposed an authentication supportive session initial protocol, claiming to resist various vulnerability attacks. Unfortunately, this paper proves that the authentication protocols of Kumari et al. and Nikooghadam et al. have neither the ability to preserve perfect forward secrecy nor the ability to resist key-compromise impersonation attack. In order to remedy such flaws in their protocols, we design a lightweight authentication protocol using elliptic curve cryptography. By way of informal security analysis, it is shown that the proposed protocol can both resist a variety of attacks and provide more security. Afterward, it is also proved that the protocol is resistant against active and passive attacks under Dolev-Yao model by means of Burrows-Abadi-Needham logic (BAN-Logic), and fulfills mutual authentication using Automated Validation of Internet Security Protocols and Applications (AVISPA) software. Subsequently, we compare the protocol with the related scheme in terms of computational complexity and security. The comparative analytics witness that the proposed protocol is more suitable for practical application scenarios.

• 산업융합연구
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• 제13권3호
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• pp.11-25
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• 2015

The purpose of this study is to find out the security guard of the destination and type of terrorism, surveillance, and identification / carried out in order to identify the recognition site the ability to respond to terrorism prevention measures, safety measures on terror. Analysis was conducted by the survey research through the literature for recognition of terrorism in order to derive the measured variables for the general recognition of the guards, pay security guard 300 patients.

• 정보보호학회논문지
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• 제27권2호
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• pp.267-279
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• 2017

본 연구는 한 회사에서 실제 업무 중에 있는 임직원들을 대상으로 장기간 여러 차수에 걸쳐 외부 해커들이 공격하는 동일한 경로와 방식으로 피싱(phishing)메일을 발송하고, 차수가 경과됨에 따라 메일 수신자들의 피싱 메일에 대한 식별능력과 대응행동을 측정하였으며, 훈련 간 부가적으로 외부통제 조건을 변화시켜 수신자들의 대응행동이 추가적으로 어떻게 변화되는지를 분석하였다. 분석결과 단발적 훈련보다는 지속적인 훈련이 임직원들의 피싱메일 식별능력과 감염율 감소에 정(+)의 영향을 주고 있음을 확인하였으며, 사회적 이슈나 시기적 이벤트와 연계한 피싱공격에 더 많은 임직원들이 감염이 되며, 감염자에 대한 인사조치와 같은 내부통제정책 강화가 임직원들의 피싱공격 대응행동에 정(+)의 영향을 주고 있음을 확인할 수 있었다. 이러한 결과에 따라 각 기관이 임직원들의 피싱공격 대응역량 강화를 위한 올바른 훈련방향을 제시하고자 한다.

• 한국재난정보학회 논문집
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• 제2권1호
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• pp.113-127
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• 2006

The suggestions that follow are about the Qualitative Improvement of private security Industrial. First, in legal and institutional policy, new establishment by law for private security and more support from government is asked. Moreover, the restructuring or M&A between petty companies and the pricing for security service should be performed. Second, in the structural aspect of private security industry, the professional education center for private security guards should be established and the terms of payment and welfare should be improved to the level above standard. In addition, it should be achieved to change the public to have a new and correct understanding of private security and develope the specialized parts suited to the characteristic and ability of each companies. Third, the construction of operating system for private security service should be achieved; recruit system for competent security guards, marketing strategy and enforcement system, widely known confidence to client, normal training system for security guards and post management system for client. This is also to be suited to the characteristic of each companies.

• 한국정보통신학회논문지
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• 제17권4호
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• pp.837-846
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• 2013

최근 무선랜은 Wi-Fi를 채용한 스마트폰에 대한 활용 증가에 따라 무선랜에 기반을 둔 새로운 신규 기술들이 연구 되고 있다. IEEE802의 11번째 워킹 그룹에서 개발된 표준인 비면허대역(ISM)을 기반으로 802.11 b/g/a는 보편화된 무선랜 기술들이다. 용량을 극복한 IEEE 802.11n의 블루레이나 비압축 비디오전송에 한계를 극복한 IEEE802.11ac와 TVWS(TV White Space)를 이용한 IEEE802.af들의 기술에 대한 표준화들이 활발히 연구 되고 있다. 본 논문에서는 이러한 기술들을 바탕으로 운영되는 AP(Access Point)에 보안을 고려하여 전송성능을 측정하고 기존의 무선랜 환경과 비교 분석한다. 분석결과 보안설정을 적용하여 전송성능을 측정했을 경우 장애물이 있는 환경에서 기존의 전송성능보다 안정적이며, 전송시간의 단축을 확인 할 수 있었다.