• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• v.33 no.1
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• pp.55-58
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• 2007

The fibromatoses are a broad group of fibrous proliferations. They have a biologic behavior and histopathologic pattern that is intermediate between those of benign fibrous lesions and fibrosarcoma. Because they are not common diseases, it is important to differentiate the fibromatoses from other similar diseases. In this report, we present a case of fibromatosis, and possible other diseases to be differentiated, with a review of literatures.

• Sleep Medicine and Psychophysiology
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• v.14 no.1
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• pp.5-12
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• 2007

Sleep changes substantially with age. There is a phase advance in the circadian sleep cycle and increased waking after sleep onset. The elderly people wake more frequently during the night and experience fragmented sleep and excessive daytime sleepiness. The prevalence of sleep disorders increases with age, and the composition of sleep disorders in the elderly differs from that in the young. The most frequently encountered sleep disorders are psychophysiologic insomnia, sleep disturbance due to dementia, sleeprelated respiratory disorder, restless legs syndrome and periodic limb movement disorder, and REM sleep behavior disorder. To treat the elderly sleep problem appropriately, it is important to know how sleep pattern changes as we age and to understand the cause of sleep-related symptoms. This article will review the sleep physiology and common sleep disorders in the elderly.

• Review of KIISC
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• v.5 no.2
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• pp.32-48
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• 1995

Our paper describes an Intrusion Detection Parallel System(IDPS) which detects an anomaly activity corresponding to the actions that interaction between near detection events. IDES uses parallel inductive approaches regarding the problem of real-time anomaly behavior detection on rule-based system. This approach uses sequential rule that describes user's behavior and characteristics dependent on time. and that audits user's activities by using rule base as data base to store user's behavior pattern. When user's activity deviates significantly from expected behavior described in rule base. anomaly behaviors are recorded. Observed behavior is flagged as a potential intrusion if it deviates significantly from the expected behavior or if it triggers a rule in the parallel inductive system.

• Journal of the Ergonomics Society of Korea
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• v.31 no.4
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• pp.541-550
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• 2012

Objective: The aim of this study is to suggest a notation method for three-dimensional hand gesture. Background: To match intuitive gestures with commands of products, various studies have tried to derive gestures from users. In this case, various gestures for a command are derived due to various users' experience. Thus, organizing the gestures systematically and identifying similar pattern of them have become one of important issues. Method: Related studies about gesture taxonomy and notating sign language were investigated. Results: Through the literature review, a total of five elements of static gesture were selected, and a total of three forms of dynamic gesture were identified. Also temporal variability(reputation) was additionally selected. Conclusion: A notation method which follows a combination sequence of the gesture elements was suggested. Application: A notation method for three dimensional hand gestures might be used to describe and organize the user-defined gesture systematically.

• IEIE Transactions on Smart Processing and Computing
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• v.4 no.4
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• pp.281-290
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• 2015

Human action recognition from a video scene has remained a challenging problem in the area of computer vision and pattern recognition. The development of the low-cost RGB depth camera (RGB-D) allows new opportunities to solve the problem of human action recognition. In this paper, we present a comprehensive review of recent approaches to human action recognition based on depth maps, skeleton joints, and other hybrid approaches. In particular, we focus on the advantages and limitations of the existing approaches and on future directions.

• KSCI Review
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• v.15 no.1
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• pp.125-129
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• 2007

지능형 홈 네트워크 서비스의 일반적 보급화로 사용자의 필요와 욕구에 밀착한 개인화 서비스를 위한 사용자의 프로파일 및 다양한 상태 정보, 센서 및 기타 환경정보를 통한 동적 상황인지가 가능토록 하는 상황인지(context-aware) 서비스에 대한 필요성이 증대되고 있다. 사용자 행위 학습에 따른 지능적 자동 제어 시스템 구축에서 먼저 고려해야 할 사항은 사용자 행위 학습에 따른 지능적 자동 제어에 대한 기준을 마련하는 것이다. 홈 네트워크 내의 정보가전기기들 환경에 대한 정보를 지속적으로 수집하고 학습 알고리즘을 통하여 분석하며, 분석되어진 정보를 바탕으로 사용자의 성향을 파악하는 것을 주요인으로 간주해야 할 것이다. 이에 따라 본 논문에서는 사용자 능동적 행위에 따른 지능형 홈 제어 시스템을 제안하였다. 또한 지속적인 모니터링을 통하여 사용자의 성향이 파악되면 상황에 따른 최적의 환경을 제공할 수 있도록 홈 네트워크 제어 시스템을 구축하는 것으로 목적으로 하였다. 사용자의 행동 패턴을 분석하고 이를 기반으로 지능적인 서비스를 제공함으로써 사용자 중심의 능동적 서비스 효과들을 얻을 수 있을 것으로 기대한다.

• The Journal of Advanced Prosthodontics
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• v.4 no.4
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• pp.259-265
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• 2012

The intent of this article was to analyze the potential hazards and risks involved in persons exposed to prosthodontic practice. These risks include exposure to physical and chemical hazards, dental materials, infectious environment, inappropriate working pattern and psychosocial stress. The potential harm of these hazards and its prevention is highlighted. Prosthodontists, students, dental technicians, and others working in the prosthodontic clinics and laboratory should be aware of the specific risk factors and take measures to prevent and overcome these hazards.

• Journal of The Korea Institute of Healthcare Architecture
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• v.3 no.5
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• pp.53-66
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• 1997

The purpose of this study is to provide the direction of facilities planning for the elderly regarding color planning and its general pattern. Color is an very important factor to provide the quality of living and induces an emotional response as environmental elements of facilities. At first, the general color theory was developed through the literature of review and it was applied to the facilities through the survey. Secondly, the collected data were analyzed and the results were derived.

• Journal of Embryo Transfer
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• v.24 no.4
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• pp.237-247
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• 2009

Melatonin (N-acetyl-5-methoxytryptamine) is the major neurohormone secreted during the night by the vertebrate pineal gland. The circadian pattern of pineal melatonin secretion is related to the biological clock within the suprachiasmatic nucleus (SCN) of the hypothalamus in mammals. The SCN coordinates the body's rhythms to the environmental light-dark cycle in response to light perceived by the retina, which acts mainly on retinal ganglion cells that contain the photopigment melanopsin. Calbindin-D9k (CaBP-9k) is a member of the S100 family of intracellular calcium- binding proteins, and in this review, we discuss the involvement of melatonin and CaBP-9k with respect to calcium homeostasis and apoptotic cell death. In future studies, we hope to provide important information on the roles played by CaBP-9k in cell signal transduction, cell proliferation, and $Ca^{2+}$ homeostasis in vivo and in vitro.

• The Korean Journal of Cytopathology
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• v.19 no.1
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• pp.9-15
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• 2008

The major categories of neuroendocrine tumors of lung are typical carcinoid, atypical carcinoid, large cell neuroendocrine carcinoma, and small cell carcinoma. The histologic classification criteria of neuroendocrine tumors are well documented in the "WHO Classification of Tumors" based on mitotic figures and necrosis. Cytologic characteristics of neuroendocrine tumors are trabecular, acinar, and solid arrangement of tumor cells and occasional rosette formation. Nuclear chromatin patterns are characteristically described as "salt and pepper chromatin pattern". Many of cytologic classifications documented in the literature are before the "WHO Classification". In this review, the cytologic features of pulmonary neuroendocrine tumors are documented according to the WHO classification, and recent concepts of neuroendocrine tumors of lung are discussed.