• 전자통신동향분석
• /
• 제13권3호통권51호
• /
• pp.61-70
• /
• 1998

The obvious way to make a computer system more powerful is to make the processor as fast as possible. Furthermore, adopting a large number of such fast processors would be the next step. This multiprocessor system could be useful only if it distributes workload uniformly and if its processors are fully utilized. To achieve a higher processor utilization, memory access latency must be reduced as much as possible and even more the remaining latency must be hidden. The actual latency can be reduced by using fast logic and the effective latency can be reduced by using cache. This article discusses what the memory latency problem is, how serious it is by presenting analytical and simulation results, and existing techniques for coping with it; such as write-buffer, relaxed consistency model, multi-threading, data locality optimization, data forwarding, and data prefetching.

• 인지과학
• /
• 제26권2호
• /
• pp.167-207
• /
• 2015

본 연구는 외상후 스트레스 장애(Posttraumatic stress disorder, PTSD)가 등장한 이후 현대 사회에서 외상 및 고통을 인식하고 이에 대응하는 방법을 조명하였고, 한국 사회의 외상 인식과 대응 방식을 검토하면서 외상 회복을 위한 대안 패러다임의 원칙을 제시하였다. 외상은 기억을 매개로 만성적인 고통을 야기하는 외부 스트레스 사건으로서, 미국정신의학회는 1980년 정신장애 진단 및 통계 편람에서 외상후 스트레스 장애를 공식 인정하였다. 외상후 스트레스 장애 진단의 개발은 피해자에게 도덕적 정당성을 부여하였고, 성공적인 치료 개입의 길을 열었으며, 신경생리학과 인지신경과학 분야에서 연구 성과 축적에 기여하였다. 그러나 이와 동시에, 고통에 대한 인식이 협소해졌고, 기술 개입의 한계를 넘어서는 대응 방안의 중요성이 간과되고 있다. 특히 한국사회의 분리와 부인의 역사적 맥락, 의료 및 전문가 중심 관료주의 기저에는 외상을 개인의 문제로 치환하려는 전략이 발견된다. 따라서 사회적 고통으로서 외상을 인식하고 대안 패러다임을 모색할 필요가 있다. 이 글은 진실 규명과 정의 회복, 회복 주체로서 생존자와 공동체의 책임, 최신 생물-심리학적 성과의 생태학적 적용, 그리고 회복이란 무엇인가에 관한 지속적인 논의를 중시하는 대안 패러다임의 원칙을 제시하였다.

• 한국심리학회지 : 문화 및 사회문제
• /
• 제9권2호
• /
• pp.61-78
• /
• 2003

본 연구에서는 한국 대학생의 음주 행동과 데이트 폭력의 관계를 검증하였다. 연구 참여자는 이성과의 데이트 경험이 있는 440명의 대학생이었는데, 남학생이 184명이고 여학생이 256명이었다. 이들의 연령 분포는 17세에서 30세까지이었으며, 평균 연령은 20.08세(SD=1.89)였다. Straus의 갈등 책략척도(CTS), 알코올장애분류검사(AUDIT), Cooper의 음주동기 설문지(DMQ), 및 음주가족력목록(IFAU)을 참여자에게 주었다. 주요 통계분석은 2(성별) × 2(데이트 폭력 가해 경험) 이원변량분석 이었다. 분석 결과, 일주일에 한번 이상 술을 마시는 대학생이 그렇지 않은 대학생보다 데이트를 하면서 이성친구에게 폭력을 행할 가능성이 높았다. 여학생보다는 남학생들이 음주에 더 동기화가 되어 있었으며, 데이트 폭력 가해 경험이 있는 학생이 그렇지 않은 학생보다 대처동기를 가지고 술을 마시는 것으로 나타났다. 남학생은 여학생보다 문제음주, 즉 위험음주, 의존음주, 유해음주를 더 하고, 데이트 폭력 가해 경험이 있는 학생이 그렇지 않은 학생보다 문제음주를 더 하는 경향이 있었다. 또한, 데이트 폭력 가해 경험이 있는 학생이 그렇지 않은 학생보다 음주 가족력 검사에서 더 높은 점수를 보였다. 의존음주와 유해음주에는 성별과 데이트 폭력 가해 여부의 유의한 이원 상호작용이 발견되었다. 단순주효과 분석 결과, 데이트 폭력 가해 여부에 따른 의존음주 혹은 유해음주의 차이는 여성보다 남성에게서 더 현저하게 나타났다.

• 대한치과기공학회지
• /
• 제38권4호
• /
• pp.255-262
• /
• 2016

Purpose: This study examined the effect of wettability of gypsum materials and rubber impression material on the marginal fitness of zirconia copings. Methods: Three commercially available gypsum materials(Fugirock EP, Snow Rock, Tuff Rock) and three zirconia blocks(iJAM Emerald, LUXEN Smile block, ICE Zirkon transluzent) were studied. The zirconia copings were fabricated by using dental CAD/CAM system. Contact angles on the impression materials were measured with contact angle measuring device. Silicone replica method was used to measure the marginal fitness and cutting was performed on the bucco-lingual and mesio-distal sides. It were observed with a stereomicroscope at °ø40 magnification. The data were statistically analyzed with One-way ANOVA. Results: Mean values of contact angles were $58.3{\pm}0.7^{\circ}$ for Tuff Rock, $77.5{\pm}0.5^{\circ}$ for Fugirock EP and $87.8{\pm}0.5^{\circ}$ for Snow Rock and the difference between them was statistically significant(p<0.05). The smallest values of marginal fitness for the JF groups were $30.7{\pm}3.0{\mu}m$ for bucco-lingual direction, $29.3{\pm}3.0{\mu}m$ for mesio-distal direction. One-way ANOVA showed statistically significant difference between groups for marginal fitness(p<0.05). Conclusion: Tuff rock gypsum material had superior wettability to others. The mean marginal fitness of the Tuff rock gypsum material group were significantly better than other groups. Thus they can be also expected to show clinically satisfactory marginal fitness.

• 한국융합학회논문지
• /
• 제13권5호
• /
• pp.435-443
• /
• 2022

본 연구는 간호대학생들의 임상실습 감정노동과 회복탄력성이 진로정체감에 미치는 영향을 확인하기 위한 서술적 조사연구이다. 본 연구는 각각 서울과 경기도에 소재한 2개 대학 간호학과에 재학 중인 3, 4학년 간호대학생 142명을 대상으로 2021년 9월에서 12월까지 자료를 수집하였으며, t-test, One-way ANOVA, Scheffé test, Pearson's correlation coefficients, Multiple regression 등을 이용하여 자료를 분석하였다. 진로정체감은 일반적 특성 중 전공만족도에 따라 유의한 차이를 나타내었다(F=19.97, p<.001). 감정노동과 진로정체감은 유의한 음의 상관관계를(r=-.35, p<.001), 회복탄력성과 진로정체감은 유의한 양의 상관관계를 나타내었다(r=.30, p<.001). 진로정체감에 유의한 영향을 미치는 요인으로는 전공만족도와 감정노동으로 나타났고(𝛽=-.268, p<.001), 이 요인들의 진로정체감에 대한 설명력은 29.3%로 나타났다. 본 결과를 바탕으로 간호대학생의 진로정체감 향상을 위해서는 간호전공만족도 향상 전략과 임상실습 시 경험하는 감정노동 대처능력에 대한 교육프로그램이 전반적으로 개발되어야 하겠다.

• 한국치위생학회지
• /
• 제21권3호
• /
• pp.281-290
• /
• 2021

Objectives: The purpose of this study was to identify the degree of adaptation of dental hygiene department students to campus life, and to provide basic data to prepare management strategies for effective campus life adaptation. Methods: Three hundred students in the department of dental hygiene in Busan Metropolitan City and Gyeonggi Province were surveyed from October 1 to October 30, 2020 and 291 questionnaires were used in the final data analysis. Results: Better adaptation to campus life was observed in subjects who participated in club activities, possessed an extrovert personality, were well adapted to the dental hygiene department, and had no conflict in interpersonal relationships, thereby showing a significant difference. Regarding the factors affecting the degree of satisfaction with the department, the higher the degree of satisfaction in the major, excellence in major, and coping ability, the higher was the degree of satisfaction with the department. Conclusions: For effective campus life adaptation of the university students as a way to increase the degree of satisfaction with the department, increasing the ability to adapt to campus life through achievement of pride in the major and participation in various interpersonal activities is a possibility. It is necessary to develop a program to create an environment for good adaptation to campus life.

• 한국초등과학교육학회지:초등과학교육
• /
• 제35권2호
• /
• pp.253-264
• /
• 2016

The purpose of this study was to investigate implications of self-directed learning experiments in elementary science education through understanding elementary school students' awareness of their experiences in self-directed learning experiments. Twenty students joined the school science club voluntarily and conducted self-directed learning experiments. We collected data through observation of the experiments, interviews, and questionnaires. The students who participated in the club showed high satisfaction with self-directed learning experiments. The participants were aware that their scientific interest and knowledge, and the confidence in conducting experiments were increased. The students felt positive about the inquiry process of conducting self-directed learning experiments with their own subjects. They also felt a sense of achievement in attempting their experiments in defiance of several failures. The participants realized that the self-directed inquires led to increased declarative and procedural knowledge of science. The students stated that they had some difficulties in coping with the different results contrary to expectations and preparing laboratory materials and instruments. Nonetheless, they showed the promotion of their scientific literacy during overcoming those difficulties. We suggest that self-directed learning experiments can be a more effective way in science learning to make students experience the nature of science than existing school experiments. This can be implemented through a creative experience activities such as science clubs.

• 한국IT서비스학회지
• /
• 제7권3호
• /
• pp.71-85
• /
• 2008

The rapid growth of blog has caused information overload where bloggers in the virtual community space are no longer able to effectively choose the blogs they are exposed to. Recommender systems have been widely advocated as a way of coping with the problem of information overload in e-business environment. Collaborative Filtering (CF) is the most successful recommendation method to date and used in many of the recommender systems. In this research, we propose a CF-based recommender system for bloggers to find their similar bloggers or preferable virtual community without burdensome search effort. For such a purpose, we apply the "Interest Value" to CF recommender systems. The Interest Value is the quantity value about users' transaction data in virtual community, and can measure the opinion of users accurately. Based on the Interest Value, the neighborhood group is generated, and virtual community list is recommended using the Community Likeness Score (ClS). Our experimental results upon real data of Korean Blog site show that the methodology is capable of dealing with the information overload issue in virtual community space. And Interest Value is proved to have the potential to meet the challenge of recommendation methodologies in virtual community space.

• 가정간호학회지
• /
• 제20권1호
• /
• pp.63-71
• /
• 2013

Purpose: This study was performed to identify nursing college students' attitudes towards death and was conducted as a pre-investigation to prepare them for coping with terminally ill patients in their clinical practice. Methods: The subjects consisted of 321 nursing students. Their attitudes towards death were measured by using the Collett-Lester Fear of Death Scale(CLFODS). The data obtained were analyzed by using the one-wayANOVA and Duncan's multiple test using the SAS 9.2 soft ware program. Results: The mean CLFODS score was 2.99. Among the 4 subscales, there were significant differences among the students with respect to grade, indirect experience of death, social isolation, daily life stress, and suicidal ideation in the past year. Conclusion: A negative attitude towards death was observed in the psychosocial characteristics, with indirect experience of death, social isolation, daily life stress, and suicidal ideation in the past year. It is necessary to educate students on how to care for dying patients before clinical practice. This education can be carried out by developing a death education program after considering the above mentioned psychosocial characteristics noted in this study.

• Journal of Korean Biological Nursing Science
• /
• 제24권4호
• /
• pp.227-234
• /
• 2022

Purpose: Smoking is a way of coping with anxiety and stress. This study aimed to identify the effects of forest-thermal combined therapy on anxiety and depression in smokers who desire to quit smoking. Methods: Thirty participants were included in the study, 15 in the experimental group and 15 in the control group. Those in the experimental group participated in a three-day forest-thermal combined therapy program. The program includes forest walks, meditation and thermal therapy in the charcoal kiln. Results: Before and after the program, physiological indicators such as cortisol, heart rate variability, and serotonin anxiety level using the state-trait anxiety inventory (STAI), and stress level using the psychosocial well-being index (PWI) were measured in both groups. The differences in STAI (p=.012) and PWI (p=.006) scores between the experimental and control groups were statistically significant. However, cortisol, heart rate variability, and serotonin were not significantly different between the two groups after the program. Conclusion: These results show that forest-thermal combination therapy effectively reduces anxiety and stress in smokers. It suggests that forest-thermal therapy can potentially increase smoking cessation rates.