• Journal of Astronomy and Space Sciences
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• 제29권3호
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• pp.315-320
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• 2012

We developed a mass-memory chip by staking 1 Gbit double data rate 2 (DDR2) synchronous dynamic random access memory (SDRAM) memory core up to 4 Gbit storage for future satellite missions which require large storage for data collected during the mission execution. To investigate the resistance of the chip to the space radiation environment, we have performed heavy-ion-driven single event experiments using Heavy Ion Medical Accelerator in Chiba medium energy beam line. The radiation characteristics are presented for the DDR2 SDRAM (K4T1G164QE) fabricated in 56 nm technology. The statistical analyses and comparisons of the characteristics of chips fabricated with previous technologies are presented. The cross-section values for various single event categories were derived up to ~80 $MeVcm^2/mg$. Our comparison of the DDR2 SDRAM, which was fabricated in 56 nm technology node, with previous technologies, implies that the increased degree of integration causes the memory chip to become vulnerable to single-event functional interrupt, but resistant to single-event latch-up.

• Asian Pacific Journal of Cancer Prevention
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• 제14권9호
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• pp.4961-4964
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• 2013

Greater use of mobile phone devices seems inevitable because the health industry and cancer care are facing challenges such as resource constraints, rising care costs, the need for immediate access to healthcare data of types such as audio video texts for early detection and treatment of patients and increasing remote aids in telemedicine. Physicians, in order to study the causes of cancer, detect cancer earlier, act in prevention measures, determine the effectiveness of treatment and specify the reasons for the treatment ineffectiveness, need to access accurate, comprehensive and timely cancer data. Mobile devices provide opportunities and can play an important role in consulting, diagnosis, treatment, and quick access to health information. There easy carriage make them perfect tools for healthcare providers in cancer care management. Key factors in cancer care management systems through a mobile phone health approach must be considered such as human resources, confidentiality and privacy, legal and ethical issues, appropriate ICT and provider infrastructure and costs in general aspects and interoperability, human relationships, types of mobile devices and telecommunication related points in specific aspects. The successful implementation of mobile-based systems in cancer care management will constantly face many challenges. Hence, in applying mobile cancer care, involvement of users and considering their needs in all phases of project, providing adequate bandwidth, preparation of standard tools that provide maximum mobility and flexibility for users, decreasing obstacles to interrupt network communications, and using suitable communication protocols are essential. It is obvious that identifying and reducing barriers and strengthening the positive points will have a significant role in appropriate planning and promoting the achievements of mobile cancer care systems. The aim of this article is to explain key points which should be considered in designing appropriate mobile health systems in cancer care as an approach for improving cancer care management.

• 도시과학
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• 제8권1호
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• pp.51-58
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• 2019

본 연구의 목적은 노인들의 응급의료이용에 영향을 주는 요인들을 알아보고 의료접근의 형평성을 조사하는 데 있다. 2014년 한국의료패널조사 자료를 사용하여 기술분석과 로지스틱회귀분석이 행하여졌으며 인터뷰에 참여했던 1,313명의 노인들이 표본으로 선정되었다. 연령, 성별, 교육수준 등의 인구변수들이 응급의료이용의 중요한 결정요인이었다. 의료요구는 노인 계층 간 응급의료이용의 차이를 충분히 설명하지 못한 걸로 나타났으나 건강상태는 응급의료서비스를 사용하는 노인들의 중요한 결정요인이었다. 의료비지출은 응급의료서비스이용의 계층 간 차이를 개선하지 못했으나 응급의료이용의 중요한 예측요인으로 남았다. 한국에서 의료개혁은 의료요구를 가진 노인들이 효과적인 진료혜택을 받을 수 있도록 전국민 응급의료 보장을 확대하는 방향으로 계속 이루어져야 한다. 앞으로 연구도 75세 이상의 교령노인과 여성 및 교육수준이 낮은 노인, 그리고 높은 의료비 지출을 하는 노인과 같은 인구계층들에게 혹시 있으지 모르는 의료접근의 장애들을 허무는 방향으로 이루어질 필요가 있다.

• 보건의료산업학회지
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• 제5권4호
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• pp.15-26
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• 2011

This study assessed and compared the expectation levels of in- and out-patients at hospitals of different size in relation to patients' view of their rights. A survey of out-patients visiting university hospitals (204 patients) and small to mid size community hospitals (215 patients) in Seoul and Kyeongki Province was conducted, where the respondents reported their perceptions of patient rights. Based on the survey, their respective expectation levels for the medical services that they would receive was assessed and analyzed for exploring possible factors for their selecting small to mid sized hospitals over larger hospitals. The results showed difference in perceptions between patients visiting or staying in lager and smaller hospitals. Namely, for out-patients, those at university hospitals had higher perceptions only about their rights to privacy while in hospital, whereas in the case of in-patients, those at small to mid size hospitals had higher perceptions only about their rights to access to inspection information. With respect to the results from analysis of difference in the expectation level for medical services between university and non-university hospital patients, it was found that in-patients at university hospitals had higher perceptions about their rights to choose to see hospital visitors while in hospital and rights to access to religious facilities.

• Journal of Korean Neurosurgical Society
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• 제55권6호
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• pp.383-386
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• 2014

Objective : Symptomatic thoracic disc herniation often requires prompt surgical treatment to prevent neurological deterioration and permanent deficits. Anterior approaches offer direct visualization and access to the herniated disc and anterior dura but require access surgeons and are often associated with considerable postoperative pain and pulmonary complications. A disadvantage with using posterior approaches in the setting of central calcified thoracic disc herniation however, has been the limited visualization of anterior dura and difficulty to accurately assess the extent of decompression. Methods : We report our experience with intraoperative ultrasound (US) guidance during a modified posterior transpedicular approach for removal of a central calcified thoracic disc herniation with a review of pertinent literature. Results : The herniated thoracic disc was successfully removed with posterior approach with the aid of intraoperative US. The patient had significant neurological improvement at three months follow-up. Conclusion : Intraoperative ultrasound is a simple yet valuable tool for real-time imaging during transpedicular thoracic discectomy. Visualization provided by intraoperative US increases the safety profile of posterior approaches and may make thoracotomy unnecessary in a selected group of patients, especially when a patient has existing pulmonary disease or is otherwise not medically fit for the transthoracic approach.

• 유통과학연구
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• 제17권12호
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• pp.63-70
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• 2019

Purpose: This study was to propose effective deployment of automatic external defibrillators (AEDs) installed at general supermarkets. Research design, data, and methodology : We conducted interview and data surveys on 72 large distributors in Seoul and Gyeonggi province in South Korea. The content of this survey was consisted of general status on the general supermarkets, AED deployment and management regarding public access defibrillation (PAD). G^⁎Power (v 3.1.9.4; Universität Kiel, Kiel, Germany) was also used to analyze statistical power. Radius and actual distance, radius and retrieval time were compared by t-test at α=.05. respectively. Results : Difference between the radius (102.7 meters) and the actual distance (187.8 meters) was 85.1m, it had statistically significant difference (p<.001). The actual distance was longer compared to the radius distance. Difference between the radius (114.1 seconds) and the retrieval time (208.7 seconds) was 94.6s, it had statistically significant difference (p<.001). The retrieval time took longer compared to the radius time as well. Conclusions : The finding shows that only 45.9% of the general supermarkets are satisfied with the actual AED coverage within 3 minutes. This needs to enhance AED deployment to reduce defibrillation time and AED management to boost application in South Korea.

• Journal of Information Processing Systems
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• 제8권1호
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• pp.67-84
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• 2012

An important amount of clinical data concerning the medical history of a patient is in the form of clinical reports that are written by doctors. They describe patients, their pathologies, their personal and medical histories, findings made during interviews or during procedures, and so forth. They represent a source of precious information that can be used in several applications such as research information to diagnose new patients, epidemiological studies, decision support, statistical analysis, and data mining. But this information is difficult to access, as it is often in unstructured text form. To make access to patient data easy, our research aims to develop a system for extracting information from unstructured text. In a previous work, a rule-based approach is applied to a clinical reports corpus of infectious diseases to extract structured data in the form of named entities and properties. In this paper, we propose the use of a Boolean inference engine, which is based on a cellular automaton, to do extraction. Our motivation to adopt this Boolean modeling approach is twofold: first optimize storage, and second reduce the response time of the entities extraction.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2019년도 춘계학술대회
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• pp.224-226
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• 2019

현재 의료 데이터는 기본적으로 대외비이며 의료보호법에 의거 보호받고 있기 때문에 접근하기가 힘들다. 이에 교육중인 학생들의 실무적인 교육을 위하여 실무자나 교수진이 실 데이터에 가깝게 모의 데이터(chart, 문제은행 형식)를 생성, upload하여 실무에 가까운 교육 환경과 데이터를 접하며 학습의 진행이 가능하도록 하는 연구이다. 본 논문에서는 web 기반으로 하여 node.js와 Ajax, mysql, jquery를 바탕으로 유지와 보수가 용이하며 사용자들이 접근하기 쉽게 하여 접하기가 힘든 환자의 차트와 차트의 관한 문제를 손쉽게 접근할 수 있게 연구하였다.

• 융합보안논문지
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• 제11권4호
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• pp.77-83
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• 2011

의료정보 기술의 빠른 발전과 더불어 새로운 의료정보 서비스 개발에 대한 연구가 많이 진행되고 있다. 의료서비스를 향상시켜 환자들에게 많은 도움을 주는 방법이다. 하지만 정보보안에 대해 대비없이 기술만 발전한다면 의료서비스 체계에 위험과 위협의 요소를 만드는 것이다. 오늘날 현안과제인 공중망을 통한 안정적인 접근문제, Ad hoc을 이용한 센서네트워크 보안, 비통합 의료정보 체계의 보안취약성과 같은 보안의 취약성을 해결하지 않을채 의료정보시스템은 발전과 활용에 큰 제한을 받게 된다.. 서로 다른 보안 정책을 가진 의료정보시스템 환경에서 보안정책이 출동할 경우 해결할수 있는 매커니즘이 필요하다. context-aware와 융통성있는 정책을 통해 의료정보의 통합성과 비밀성이 보장되어야 한다. 다른 도메인간 원거리 통신시 접근제어 정책이 보호 되어야 한다. 본 논문에서는 의료정보시스템의 접속자가 다양화, 다변화 되는 환경에서 Security agent 역할 기반의 보안시스템 아키텍쳐 설계방안을 제안한다. 제안된 시스템아키텍쳐는 현장에서 설계작업에서 하나의 모델로 활용이 가능할 것으로 기대한다.

• Asian Pacific Journal of Cancer Prevention
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• 제13권8호
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• pp.4169-4172
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• 2012

Background: The majority of women in rural India have poor or no access to cervical cancer screening services, although one.quarter of all cervical cancers in the world occur there. Several large trials have proven the efficacy of low-tech cervical cancer screening methods in the Indian context but none have documented the necessary components and processes of implementing this evidence in a low-resource setting. Methods: This paper discusses a feasible model of implementation of cervical cancer screening programme in low-resource settings developed through a pilot research project carried out in rural Tamilnadu, India. The programme used visual inspection of cervix after acetic acid application (VIA) as a screening tool, nurses in the primary care centres as the primary screeners and peer educators within Self-Help Women groups to raise community awareness. Results: The uptake of screening was initially low despite the access to a screening programme. However, the programme witnessed an incremental increase in the number of women accessing screening with increasing community awareness. Conclusions: The investigators recommend 4 key components to programme implementation in low-resource setting: 1) Evidence-based, cost-effective test and treatment available within the reach of the community; 2) Appropriate referral pathways; 3) Skilled health workers and necessary equipment; and 4) Optimisation of health literacy, beliefs, attitudes of the community.