• Asian Pacific Journal of Cancer Prevention
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• 제14권4호
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• pp.2615-2619
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• 2013

Background: The aim of this study was to examine the effects of perceived parental attitudes on children's discernment of cigarettes. Materials and Methods: The study sample consisted of 250 children attending grades 6, 7 and 8. Data were collected via a socio-demographic survey questionnaire, the Parental Attitude Scale (PAS) and the Decisional Balance Scale (DBS). Data analysis covered percentages, medians, one-way analysis of variance (ANOVA) and post-hoc tests using a statistical package. Results: There were 250 participants; 117 were male, 133 were female. The mean age was $13.1{\pm}0.98$ for the females and $13.3{\pm}0.88$ for the males. A statistically significant difference was found in the children's mean scores for 'pros' subscale on the Decisional Balance Scale (DBS) according to perceived parental attitudes (F=3.172, p=0.025). There were no statistically significant differences in the DBS 'cons' subscale scores by perceived parental attitudes. Conclusions: It was determined that while perceived parental attitudes affect children's views on advantages of smoking, they have no effect on children's views on its disadvantages.

• 컴퓨터교육학회논문지
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• 제8권1호
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• pp.65-72
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• 2005

본 연구에서는 DDoS/DRDoS 공격과 같이 Zombie 및 Reflector 기반의 네트워크 기반 해킹 공격에 대해 스푸핑된 공격 패킷의 근원지 IP를 역추적 할 수 있는 시뮬레이터를 설계/구현하였다. 현재까지 제시된 IP 역추적 기법에 대한 분석을 수행하여 각 기법의 장단점을 파악하고 특히 근래에 많은 피해를 주고 있는 Reflector 기반의 DRDoS 공격에 대한 역추적 시뮬레이션을 수행하였다. NS-2 기반의 패킷 IP 역추적 모듈 개발 구조를 제시하였고 이를 설계/구현하였으며 직접 DRDoS 공격 트래픽에 대한 역추적 과정을 수행하였다. 제시한 기법에 대한 시뮬레이션 결과 DRDoS 공격에 효율적으로 대응하였으며 개선된 역추적 성능을 제공하였다.

• 디지털콘텐츠학회 논문지
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• 제12권2호
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• pp.177-184
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• 2011

본 연구에서는 영상음악의 물리적 관점에서 영상과 음악의 시간일치를 살펴보고 있다. 시간일치는 클릭트랙을 활용하여 영상의 시간과 음악의 마디 위치를 수학적 계산에 의해 나타내게 되는데, 음악적 강조지점인 Hit의 위치는 박자 당 프레임 수(FPB)를 산출하여 시간대별 음표의 위치를 가늠함으로써 찾아 낼 수 있다. Hit은 여린박에 위치 할 수 있으며, 음악의 특성상 센박에 위치하는 것이 작곡가에게 더욱 편리하기 때문에 본 연구에서는 음악과 영상 싱크를 위한 세 가지 방법을 제안한다. 첫째는 박자변환을 통한 싱크, 둘째는 템포변환을 통한 싱크이며, 마지막으로 오프셋을 통한 싱크 방법이 있다. 이 방법들은 각기 장단점이 있으므로, 이들 싱크의 선택 문제는 음악의 자연스러운 흐름을 기초로 판단해야 한다.

• Journal of Dental Anesthesia and Pain Medicine
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• 제15권1호
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• pp.1-4
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• 2015

In pediatric dentistry, chloral hydrate is habitually selected for sedation of uncooperative children. Although chloral hydrate has been used for decades, various adverse effects are reported and necessity for new alternative drugs has increased. Dexmedetomidine was approved by FDA for sedation at intensive care units (ICU) in 1999. Compared to conventional sedative drugs, dexmedetomidine has not only analgesic and sedative effects but also it barely suppresses the respiratory system. Due to these characteristics, dexmedetomidine is known as safe sedative drug for children and elderly patients. Furthermore, approved by KFDA in 2010 in Korea, the frequency of sedation using dexmedetomidine is increasing. However, due to its intravenous administration method, it was difficult to apply in pediatric dentistry. Recently, intranasal administration method was introduced which might be a new possible alternative of oral sedation. In this study, we compare the mechanisms, pros and cons of chloral hydrate and dexmedetomidine, introducing new possibilities.

• Clinical and Experimental Reproductive Medicine
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• 제44권4호
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• pp.187-192
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• 2017

Although the survival rate of hematologic malignancies in young patients is very high, cytotoxic therapies such as chemotherapy and total body irradiation therapy can significantly reduce a patient's reproductive capacity and cause irreversible infertility. Early ovarian failure also commonly occurs following additional cancer treatment, bone marrow transplantation, or autologous transplantation. Because the risk of early ovarian failure depends on the patient's circumstances, patients with a hematologic malignancy must consult health professionals regarding fertility preservation before undergoing treatments that can potentially damage their ovaries. While it is widely known that early menopause commonly occurs following breast cancer treatment, there is a lack of reliable study results regarding fertility preservation during hematologic malignancy treatment. Therefore, an in-depth discussion between patients and health professionals about the pros and cons of the various options for fertility preservation is necessary. In this study, we review germ cell toxicity, which occurs during the treatment of hematologic malignancies, and propose guidelines for fertility preservation in younger patients with hematologic malignancies.

• International Journal of Knowledge Content Development & Technology
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• 제7권4호
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• pp.27-50
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• 2017

The impact of social networking is varied from good to bad. Online activities have also been categorized into pros and cons of social networking, either as reported as hiding Internet activities among teenagers or killing loneliness among elderly. In terms of relationships, there have been argument over its closeness and quality of an online relationship in Internet settings. Looking at the contradiction in an innovative interaction between classic community communication and social media, there is an unknown scent of the future struggling and challenging both human communication and relationships in the presence of digital culture. This research uses Diffusion of Innovation to study the wide and continuous spread of digital culture in human communication; and, Media Dependency in learning and structuring the cognitive, affective and behavioral effects of social media on each person uses the media in different ways. This research will be using online survey to gain opinions from a social network site as an update of views and reflection of self-awareness to all levels of people. Social media like Facebook (FB) is perceived as a good tool of communication that it is able to bring closeness among the family members. The results show that social media like FB brings positive impact towards family members; it would help to build a better and harmonic society; and, relationships among family members and communication shall be improved and enhanced to the level of a united society.

• 정보보호학회논문지
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• 제25권5호
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• pp.1245-1255
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• 2015

클라우드 컴퓨팅의 성장과 더불어 클라우드 이용자 데이터 보안에 대한 우려가 증가하고 있으므로 이러한 우려를 감소시키는 것이 클라우드 컴퓨팅에서 필수적이다. 본 논문에서는 클라우드 컴퓨팅에 대한 정의 및 장단점을 설명하고 클라우드 컴퓨팅 발전법에서 정의하고 있는 이용자 정보 보호 규정에 대해 논한다. 다음으로 클라우드에서의 개인정보 보호 논점 및 개인정보 위 수탁에 관한 기존 연구 내용을 살펴본다. 그리고, 클라우드 서비스 유형에 따른 개인정보 저장 방식의 차이를 살펴보고 이로 인해 클라우드 서비스 별로 개인정보의 위 수탁 관계가 달라져야 함을 논한다. 이를 바탕으로 IaaS와 SaaS 클라우드 서비스 유형별로 개인정보를 보호하는 방안을 제안한다.

• 한국농업기계학회:학술대회논문집
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• 한국농업기계학회 2017년도 춘계공동학술대회
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• pp.111-111
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• 2017

There still exist adhesives that have toxic compounds or consist of those materials in both our life and lots of industries. For instance, formaldehyde adhesive had been still used for woodworking and some medical adhesives had been considered as toxicity problems. In this situation, natural adhesives from raw materials have been suggested as an one of considerable interests. Natural adhesives in recent have been reported fabrication methods via biological materials such as proteins, celluloses, and starches. By-products derived from agricultural something have them richly and each has additional special properties. Using these properties to make natural adhesives, unique adhesives would be attained. In particular, rice-based adhesive is such a good example. Rice-based by-product adhesives have interestingly some pros pertaining to high adhesive strength, excellent water resistance and could dramatically be reduced a formaldehyde a harmful component of plywood. Hence, rice-based adhesive like glues could be applied to lots of industries including agricultural and biological technology. This review paper highlighted some recent development on natural adhesives as a promising biomaterial for agricultural and biological technology fields. The design of agricultural by-product-based natural adhesives were described to demonstrate the application of agricultural and biological technology

• 교육시설
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• 제10권2호
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• pp.15-22
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• 2003

The purpose of this study is to find problems and to provide architectural design standards of the Learning Space Unit(L.S.U.) in Elementary Schools through the Post-occupancy Evaluation(POE). In this study, we found six major problems of the type of the L.S.U. in elementary schools. More than 50% of users expressed dissatisfactions in these items : size, safety, cooling facility, noise, privacy and primary meaning for its original purpose. After the interrelation-analysis, we checked pros and cons about each forms of L.S.U. It is the result of analysis of the layout method in L.S.U. 1) "$8.4m{\times}8.4m$" classroom unit got the highest positive responses 2) "2-classroom type" and "4-classroom type" got higher score than "3-classroom type" 3) "Whole faced type" 1) made more active Multi-space than "Partial faced type" 4) prefered prepared "Open-classroom" to "Closed-classroom" 5) 'Zoning type between L.S.U.s' couldn't influence to user's responses. Designers can consult those informations when they plan a new, remodeling and additional elementary school.

• 한국문헌정보학회지
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• 제38권1호
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• pp.51-75
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• 2004

본 연구의 목적은 공공도서관의 운영 활성화에 기여하기 위하여 현행 공공도서관의 민간 위탁의 성과를 분석하는 것이다. 성과의 분석 대상으로는 민간 위탁을 실시하고 있는 3개 공공도서관을 선정하여, 문헌연구, 설문 및 방문조사를 수행하였다. 주요한 고찰사항은 첫째. 공공도서관 민간위탁의 필요성과 배경 및 현황의 검토, 둘째, 민간위탁의 찬$\cdot$반 양론 및 쟁점의 정리, 셋째, 민간위탁의 현행 성과 분석을 포함하였고, 마지막으로 분석에 근거하여 향후 바람직한 공공도서관 민간 위탁 제도 도입과 운영 전략을 제시하고 있다.