• 한국컴퓨터정보학회논문지
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• 제16권11호
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• pp.17-24
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• 2011

협업적 여과 시스템은 사용자에 대한 클러스터링을 구축한 후, 구축된 클러스터를 기반으로 사용자에게 아이템을 추천한다. 그러나 사용자 클러스터링 구축에 많은 시간이 소요되고, 사용자가 평가한 아이템이 피드백 되었을 경우 재구축이 쉽지 않다. 본 논문에서는 영화 추천 시스템에서의 사용자 클러스터링의 재구축 시간을 단축시키기 위해서 빈발 패턴 네트워크를 이용하여 사용자가 선호하는 장르 패턴을 추출하고, 추출된 패턴을 통해 사용자 클러스터링을 구축한다. 구축된 사용자 클러스터링을 협업적 여과에 적용하여 사용자에게 영화를 추천한다. 사용자 정보가 피드백 될 때, 전통적 협업적 여과는 사용자 클러스터링을 재구축하기 위해 모든 이웃 사용자를 재탐색하여 클러스터링 한다. 하지만 빈발 패턴 네트워크를 이용하여 장르 패턴 기반의 사용자 클러스터링을 적용한 협업적 여과는 사용자 클러스터링을 재구축시 사용자 탐색 공간을 국한시킴으로써 탐색 시간을 줄일 수 있다. 제안하는 장르 패턴기반의 사용자 클러스터링을 통해 사용자 정보가 피드백 된 후 사용자 클러스터를 재구축시 소요되는 시간을 줄일 수 있고, 전통적인 협업적 여과 시스템과 유사한 성능의 추천이 가능하게 되었다.

• 간호행정학회지
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• 제9권2호
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• pp.193-203
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• 2003

Purpose : The purpose of this study was to develop the Operating Room Nursing Malpractice Scale and to test reliability and validity of the instrument and to describe frequency of malpractice. Method : The subjects used to verify the Scale's reliability and validity were 179 nurses who working at 3 university hospital and 6 general hospital in Busan and Kyoung nam province from september 1 to October 10, 2002. The data was analyzed by the SPSS/ WIN 10.0 program. Result : The factor analysis classified a total 5 factors statistically, it's communality was 44.18%. Item content are as follows. The factor were 'malpractice in the patient's preparation', 'malpractice in nursing technique', 'malpractice in the management of the environment', 'malpractice of the patient's security', 'malpractice in the supervision of the patient'. The most frequent malpractice was 'The patient complained of waiting for a long time to go back from the operating room because of inadequate communication with another department'. Conclusion : The scale of operating room nursing malpractice was to prevent the severe nursing accident and to provide the basis of needs of educational program.

• 대한간호학회지
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• 제42권6호
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• pp.853-860
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• 2012

Purpose: The purposes of this study were to develop a Minimal Insomnia Screening Scale for Korean adults (KMISS) and to evaluate psychometric properties and discriminant ability of the developed scale. Methods: Data from a cross-sectional survey of 959 Korean adults were analyzed to develop the summated insomnia scale, which was evaluated in terms of reliability, validity, and discriminant ability by receiver operating characteristics (ROC) curve analysis. Results: Item-total correlations ranged between .71-.79 and Cronbach's ${\alpha}$ was .87. Adequate validity was also evident. ROC-curve analysis showed area under ROC was .87 (95% CI: .84-.90) and identified the optimal cut-off score as ${\leq}20$ (sensitivity, .83; specificity, .75; positive/negative predictive values, .40/.95). Using this cut-off score, the prevalence of insomnia in the study sample was 26.3% and most frequent among women and the oldest group. Conclusion: Data supports the psychometric properties of KMISS as a possible insomnia screening instrument. KMISS also shows promise as a convenient ultra-short screening measure of insomnia for adults and epidemiological studies in community health care settings.

• 한국보건간호학회지
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• 제5권1호
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• pp.35-52
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• 1991

The purpose of this study was to assess the degree of stress and patterns of coping for that Stressful events on family members because of the hospitalization of the patients. Stress and coping were measured with a tool on the basis of Volicer and Bell's questionnaire. In data collection, the modified 38 items of Volicer's stress scale and Bell's 18 item coping scale were administered. The subjects consisted of 259 family members of general ward-patients in Seoul National University Hospital during April in 1990. They were randomly selected on the basis of relationship of patients; patient's spouse, patient's daughters or sons. The stressors of the family members were ranked as follows; The first rank Stressful events was related to the patient's diseases and pain, the second ones was related ·to caring of their patients and family's psychosocial life. Families used long term coping method significantly more than short term ones. The results indicated that there was no difference in use of coping method between pre and post hospitalization. Finding out more about situation and optimism were the most common coping methods, and the least frequent coping method was the use of drugs. In conclusion, the identification of perceived stress and coping patterns of family members provides useful information for family nursing and aimes at better nursing care for the hospitalized in patients.

• 융합보안논문지
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• 제5권2호
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• pp.1-8
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• 2005

최근 새로운 공격기법에 대한 대응방법의 하나로 네트워크 상황 즉, 네트워크 사용량을 분석을 통한 외부 공격 예방기법이 연구되고 있다. 이를 위한 네트워크 분석을 데이터 마이닝 기법을 통하여 네트워크 이벤트에 대한 연관 규칙을 주어 외부뿐만 아니라 내부 네트워크를 분석할 수 있는 기법이 제안되었다. 대표적인 데이터 마이닝 알고리즘인 Apriori 알고리즘을 이용한 네트워크 트래픽 분석은 과도한 CPU 사용시간과 메모리 요구로 인하여 효율성이 떨어진다. 본 논문에서는 이를 해결하기 위해서 새로운 연관 규칙 알고리즘을 제시하고 이를 이용하여 네트워크 이벤트 감사 모듈을 개발하였다. 새로운 알고리즘을 적용한 결과, Apriori 알고리즘을 적용한 시스템에 비해 CPU 사용시간과 메모리의 사용량에 있어 큰 향상을 보였다.

• 디지털콘텐츠학회 논문지
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• 제17권5호
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• pp.359-366
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• 2016

유비쿼터스 환경에서 사용자에게 유용한 서비스를 제공하기 위해서는 시간과 공간을 기반으로 사용자의 행동과 선호 패턴을 고려하여 가장 적합한 데이터를 처리할 수 있는 방법이 필요하다. 실세계에서 사용자의 관심은 시간이 지남에 따라 변화할 수 있다. 그러므로 서비스 관심도의 변화를 중요도에 반영하여 정보를 추출할 수 있는 방법이 필요하다. 이 논문에서는 사용자에게 필요한 서비스 정보를 온톨로지로 설계하고 시간에 따라 동적으로 변화하는 사용자의 서비스 이용 패턴이나 데이터의 중요도를 동적 가중치로 표현하여 빈발 패턴을 찾는 방법을 제안한다. 이 논문에서 제안하는 동적 가중치를 고려하는 빈발 서비스 패턴 마이닝 기법은 시간의 변화에 따라 필요로 하는 사용자의 관심을 서비스의 중요도로 반영하므로 실시간의 최적화된 서비스 제공이 가능하다.

• 재활간호학회지
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• 제7권1호
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• pp.58-67
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• 2004

Behavioral symptoms are frequent and problematic components of dementia. The aim of this study was to detect behavioral problem of the 25 item of dementia problem behaviour(DPB)assesment scale for demented older adults. Seventy-three patients with dementia staying in the day care center, group home, dementia hospital, nursing home were recruited data on problematic behavior obtained through interviews with their caregiver during 2 months from March to May 2004. Results shows that problematic behaviors common occurring in 95% of subjects. The most frequently exhibited problematic behaviors were repetitive movement(1.05), repetitive questions(1.03), restlessness(1.0). indifference(0.97). shouting/screaming(0.92). Problematic Behaviors of the demented older adults were closely associated to the distress for caregiver. Most distressful ones for caregivers were repetitive questions(1.46), repetitive movement(1.42), shouting/screaming (1.42), indifference(1.41). restlessness(1.41). Problematic Behaviors of the demented older adults were divided into six subdivisions, among those restless behavior was positively correlated with aggressive behavior, nervous symptom and psychotic symptom. and then nervous symptom was interrelated to psychotic symptom(P<0.01). This study has limitation that field study data were derived from various primary caregivers.

• Journal of Dental Anesthesia and Pain Medicine
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• 제20권5호
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• pp.303-312
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• 2020

Background: Lidocaine is the gold standard local anesthetic (LA) for UK pediatric dental treatment. Recent reports suggest frequent Articaine use in Europe and Canada, with evidence indicating more profound anesthesia. The aim of this study was to examine pediatric dentistry specialist experiences and practices relating to Articaine administration in the UK. Methods: A literature review was followed by a survey using an anonymous 15-item electronic questionnaire, which was sent to 200 registered British Society of Pediatric Dentistry (BSPD) specialists. Descriptive analyses, Z score, chi-squared test, Fisher's exact test, and Spearman's correlation test were performed. Results: Sixty-one (30.5%) participants responded, and 12 (19.7%) indicated Articaine as their first line anesthetic. Articaine was used daily or weekly by 38 (62.3%) respondents, depending on the clinical context. Articaine was commonly used to avoid inferior alveolar nerve blocks and gain more profound anesthesia in abscessed or hypomineralized teeth. Participants reported significantly more adverse effects with lidocaine (Fisher's exact test, P < 0.0001) than with Articaine. Articaine was most often administered in children aged > 4 years via infiltration techniques. Only 15 (24.6%) respondents reported awareness of guidelines for Articaine use in pediatric patients. Conclusions: Articaine use in pediatric dentistry is common; however, evidence supporting its practice is limited. Several specialists follow conventions based on anecdotal evidence. Formulating guidance to aid decision-making when treating pediatric patients under LA would be beneficial.

• 한국IT서비스학회지
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• 제16권1호
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• pp.73-82
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• 2017

Recently in-memory data stream processing has been actively applied to various subjects such as query processing, OLAP, data mining, i.e., frequent item sets, association rules, clustering. However, finding regular periodic patterns of events in an infinite data stream gets less attention. Most researches about finding periods use autocorrelation functions to find certain changes in periodic patterns, not period itself. And they usually find periodic patterns in time-series databases, not in data streams. Literally a period means the length or era of time that some phenomenon recur in a certain time interval. However in real applications a data set indeed evolves with tiny differences as time elapses. This kind of a period is called as a pseudo-period. This paper proposes a new scheme called FPMH (Finding Periods using Multiple Hash functions) algorithm to find such a set of pseudo-periods over a data stream based on multiple hash functions. According to the type of pseudo period, this paper categorizes FPMH into three, FPMH-E, FPMH-PC, FPMH-PP. To maximize the performance of the algorithm in the data stream environment and to keep most recent periodic patterns in memory, we applied decay mechanism to FPMH algorithms. FPMH algorithm minimizes the usage of memory as well as processing time with acceptable accuracy.

• 대한물리의학회지
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• 제10권2호
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• pp.47-54
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• 2015

PURPOSE: The purpose of this study is to examine the relationship between the physical activities of individuals post-stroke and their HRQL, as well as to determine whether their functional abilities contribute to their amounts of physical activity. METHODS: The study's subjects included 90 individuals post-stroke. Their amounts of physical activity were measured using the International Physical Activity Questionnaire (IPAQ), and their HRQL was measured using the Medical Outcomes Study 36-Item Short-form Health Survey (SF-36). In addition, the functional abilities of the subjects were measured. For the measures of physical activities and the HRQL, Pearson's correlation coefficients were used to identify the strengths of the associations between the measures. A hierarchical linear regression model was used to determine whether physical activities had independent impacts on the HRQL. RESULTS: This study found that the physical activities performed by the subjects affected the SF-36 physical component score (PCS) (12%). However, the physical activities and the SF-36 mental component score (MCS) showed no statistically significant relationship, whereas functional abilities and physical activities had a statistically significant relationship (r = .57~.86, p<.001). CONCLUSION: The present study identified a correlation between physical activity and the PCS. Therefore, individuals post-stroke should be encouraged to carry out more physical activities, including more frequent walking activities.