• 통합자연과학논문집
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• 제11권4호
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• pp.197-203
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• 2018

Long Term Evolution-Advanced (LTE-A) is the next drive in the broadband mobile communication, which allows operators to improve networks performance and service capabilities. LTE-A targets the peak data rates of 1Gbps in the downlink and 500Mbps in the uplink. This requirement is only fulfilled by a transmission bandwidth of up to 100MHz. However the accessibility of such large part of the contiguous spectrum is uncommon in practice. Therefore LTE-A uses some new features on top of the existing LTE standards to provide very high data rate transmission. Some of the most significant features introduced in LTE-A are carrier aggregation, heterogeneous network enhancement, coordinated multipoint transmission and reception, enhanced multiple input and multiple output, and development relay nodes with universal frequency reuse. This review paper presents an overview of the above mentioned LTE-A key features and functionalities. Based on this review, in the conclusion we discuss the current technical challenges for future broadband mobile communication systems.

• 한국산학기술학회논문지
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• 제22권3호
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• pp.138-147
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• 2021

본 연구는 우리나라 간호사의 건강증진행위 측정을 위한 검증된 도구가 부족한 실정으로 간호사의 간호환경 특성을 반영하면서 그 사용이 검증된 도구 개발이 필요함에 따라 한국 간호사의 건강증진행위 측정도구를 개발하는 것을 목적으로 한다. 본 연구는 2019년 1월부터 12월까지 간호사 총 530명을 대상으로 실시하였으며 연구방법으로는 문헌 고찰 및 포커스 그룹 면담을 실시하고, 타당성과 신뢰성을 측정하기 위해 데이터 분석을 하였으며, IMB(Information-Motivation-Behavioral Skills) 모델을 적용하여 개념 틀을 구성하였다. 그 결과 간호사로서의 자아개념(2 문항), 병원생활관리(4 문항), 건강에 대한 지식 및 정보(5 문항), 신체적·정신적 스트레스관리(3 문항), 근무적응(2 문항)의 5가지 요인 16 문항으로 도출되었다. 모델 적합도는 346.23 (��<.001), PNFI는 .60, PCFI는 .63으로 허용 기준을 충족했으며 RMSEA는 .10이었다. GFI .88, CFI .85, IFI .85는 기준치에 적합한 것으로 확인되었다. 모든 항목은 Cronbach의 �� .85로 안정적인 신뢰성을 확보하였다. 본 연구에서 개발 한 간호사의 건강증진행위 측정도구는 간호 실무 측면에서 간호사의 건강 증진 행동을 측정하는 도구로 사용될 것이며 간호사의 건강 증진 행동을 폭넓게 이해하는 데 도움이 될 것이다.

• 재활간호학회지
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• 제4권2호
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• pp.240-247
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• 2001

The history of rehabilitation of disabilities in Korea began with the foreigners and missionaries who were interested in it after Korean War. In 1981, Disabled Persons Welfare Act was enacted and the 88 Paralympics brought the nations attention to the welfare and rehabilitation of persons with disabilities. Since then, the facilities and the services for the disabled persons have expanded rapidly and the rehabilitation treatment and nursing intervention are drawing more attention. Against this background, the survey on the current status of disabilities, welfare service, facilities, and rehabilitation nursing was conducted. The results of this survey are as follows. 1. According to the 2000 census of disabilities, the number of persons with disabilities in Korea is estimated at 1,449,500, or 3.09% of the entire Korean population, 0.74% up from 2.35% in 1995. 2. Disability Types in 2000 The 2000 census showed that the persons with disabilities numbered 1,449,496 out of the total population and 1,024,371 persons are registered for disability, making up 70.7% of the estimated disabled population. Among them, physically disabled persons accounted for the largest 41.7% (605,127) and mentally retarded persons stood at the smallest 9% (13,481). 3. Percentage of Disability Presence The survey showed that more than 90% of disability were acquired. However, 44.8% of mental disability and 61.4% of hearing/speaking disability were not acquired after birth. This means that these disabilities happened by congenital cause or birth accident. 4. Yearly Figure of Registered Disabled Persons In 1989, 218,601 persons registered for disability and, in 2000, the number increased by 4.7 times to 1,024,371. These figures are different from the actual number of disabled persons. According to the 1995 census, 1,053,486 were disabled persons but only 378,323registered for disability. And, in the 2000 census, 1,024,371 out of the 1,449,496 of disabled persons registered for disability. 5. Welfare Service for Persons with Disability 62.6% of the total disabled people are registered and physically disabled persons accounted for the highest percentage of 96.7%. 26.5% of non-registered disabled people said that they didnt know the registration procedure. The rest of them replied that they didnt think they were disabled or that registration didnt seem to give any benefits. 6. Welfare Policies for Disabled Persons The welfare benefits given to the disabled are as follows: Issuance of disabled sign for car drivers, Permission to use LPG fuel, Communication fee reduction, Tax exemption related to cars, Reduction of public facility fees, Household allowance, Tax reduction or exemption, Medical allowance and education subsidy for children, and Housing. 7. Current Condition of Welfare Facilities by Disability Type The welfare institutions for disabilities numbered 188 in total and they can accommodate 16,823 persons. Categories of these institutions are physical disability(37), visual disability(10), hearing/speaking disability(14), mental retardation(59), and sanatoriums(68). 8. Human Resource of Rehabilitation of Disabilities Advanced education programs include rehabilitation nursing in its curriculum and this was selected as the program of Korean Academic Society of Nursing in 1990. In November 1997, Korean Academic Society of Rehabilitation Nursing was launched and many academic meeting and seminars were held. This organization is also making efforts to develop the education program for qualified rehabilitation nursing professionals and to develop the standards of rehabilitation nursing practice. In the professionals of the rehabilitation, there are rehabilitation specialist, physical therapist, speech therapist, occupational therapist. It is needed to come up with the measures to supply stable human resources following the demand of disabled persons and to recognize the private certificates for rehabilitation professionals as official ones after reviewing the education and training programs of private institutions. 9. Rehabilitation Nursing 1) Rehabilitation nursing was taught as an independent subject in 11 undergraduate programs and 9 graduate programs. 2) Research on rehabilitation nursing in Korea were 24 experimental research and 11 non-experimental research. The intervention of experimental research were mostly education and exercise rehabilitation programs. 3) In the three rehabilitation hospitals, nursing is divided into two categories, direct nursing and education & counseling. Direct nursing includes tracheostomy or nasogastric tube care, urination and defication, skin care, pain control, complication prevention and care, prevention of injury from a fall, etc.

• 한국의료질향상학회지
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• 제5권2호
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• pp.258-276
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• 1998

This study was conducted to justify the "prescribed shelf life" currently used in Samsung Medical Center and give recommendations based on scientific data to adopt for safe and cost-effective storage times for sterile goods Since the early 1970's, predetermined expiration dating policy has been used in Korea on all in-house sterilized products like any other countries; six months for the supplies wrapped in polyethylene peel pouches and two weeks for the rest. Recently, however, the studies suggest that current standards for preserving the sterility can be changing. It looks like we unnecessarily have too-short expiration date of sterilized supplies, that is far from being cost effective. Certainly, this research is an exciting project, especially in Korea, and will be leading and contributing to the paradigm shift of the conservative concept of shelf life for sterile supplies in Korean healthcare facilities. The major goal of this study was placed on the measurement of the recontamination time in packs wrapped in all kinds of wrapping materials used in S.M.C and stored in various conditions for periods ranging from three months to six months, and then develop a practical standard of "shelf life" based on the analyzed data. Objectives: To measure and compare the recontamination time of sterile packs among wrapppers and storage conditions, and develop a practical standard for the shelf life and storage conditions of sterile products. Samples and Method: The sterile integrity was investigated of the total 1,440 sterile sample packs containing gauze strip($1.5cm{\times}0.5cm$) we prepared and wrapped in nine wrapping materials (randomized reprocessed linens, linens reprocessed 99 times, linens reprocessed 120 times, new kraft paper, used kraft paper, new nonwoven fabrics, 6-time reprocessed nonwoven fabrics, new polyethylene peel pouches, used polyethylene peel pouches), and stored in four locations(closed cabinet of one of the typical wards, open shelf of one of ICUs, open shelf of separate storage room in ER, open shelf in OR), for three to six months, respectively in 1998. Each type of packs were opened weekly and the gauze strips inoculated into Brewer's thioglycollate broth at $35^{\circ}C$ for seven days. Results: There was no growth found for any types of the pack and storage conditions studied. Discussion: This study was conducted in an attempt to identify the possibility of extending the current shelf life for sterile goods we use in a sense of cost effectiveness. The findings suggest that we could extend our expiration dates, that means we can save a lot of materials and personnel time meeded for resterilizing, outdating, recleaning, wrapping, and reshelving. Then it will initiate a great reform in the field of healthcare in Korea, and now we are looking forward to this valuable revolution. We are going to continue this study and take all steps need to apply this new concept to our practice, and then trying to extend to other hospitals.

• 의료법학
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• 제19권2호
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• pp.41-72
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• 2018

분업적 의료행위에 있어서 관여자들에 대한 의료과실을 인정함에 있어서는 그의 형사 책임을 제한하거나 또는 형사책임을 적절히 분배할 필요성이 있다. 본 논문은 분업적 의료행위에 있어서 의료인의 주의의무위반에 대한 판단기준과 이를 제한하는 규칙을 다루고 있다. 의료행위에 있어서 주의의무위반에 대한 판단기준으로 객관설이 타당함을 논증하였다. 주의의무를 판단함에 있어서 행위자 개인에게 최상의 주의의무 또는 완벽한 주의의무를 요구하는 것도 도덕적 요청으로는 의미가 있을지 모르지만, 법질서가 요구하는 수준은 사회적으로 상당한 수준 또는 '정상의' 주의의무라고 해석하는 것이 타당하다. 과실기준을 객관화함으로 개인이 책임을 지는 한계의 상한을 설정해줌으로써 개인에게 지나친 부담을 안겨주는 것을 방지하고 평등의 원칙에도 부합한다. 구체적 사례에 있어서 의료과실을 판단하는 경우에도 고려해야 할 표지를 설명하였다. 의료행위는 일반적 과실과는 다르게 전문성, 재량성과 같은 특수성, 정보의 편중성과 독점성이 있기 때문이다. 일반적 의학수준, 긴급성과 의료설비와 같은 의료환경과 조건, 의료행위의 전문성, 의료행위의 재량성에 대하여 검토하였다. 주의의무를 제한하는 규칙으로 허용된 위험의 이론과 신뢰의 원칙을 검토하였다. 수평적 분업관계에서는 신뢰의 원칙이 적용된다. 같은 병원 의사들이 각각 전문분야를 가지는 경우, 다른 병원 의사들 사이의 관계의 경우에는 원칙적으로 신뢰의 원칙이 적용된다. 그러나 예외적으로 신뢰의 원칙이 적용될 수 없는 경우도 존재한다. 수직적 분업관계에서는 신뢰의 원칙이 적용되지 않으며 상급자는 하급자를 신뢰할 수 없다. 이 경우 상급자는 하급자에 대한 위험감독의무로 전환된다. 관리의무는 임의적·간헐적 심사(stichprobenartige Überprüfungen)를 하는 것으로 충분하다고 생각한다.