• Korean Journal of Clinical Pharmacy
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• v.22 no.1
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• pp.13-20
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• 2012

서론: 주사제 사용을 줄이기 위한 정책의 일환으로 건강보험심사평가원은 의료기관별 주사제 처방률을 통보하고 있으나, 여전히 주사제 처방은 높은 실정이다. 따라서 본 연구에서는 주사제에 대한 환자의 인식수준을 살펴보고, 환자의 주사제 요청에 영향을 미치는 요인을 파악하고자 하였다. 연구방법: 본 연구는 최근 6개월 이내에 병의원을 방문한 전국의 20세 이상의 남녀를 대상으로 전화조사한 단면설계 연구다. 환자의 일반적 특성과 주사제에 대한 태도, 인식을 조사하였고, 환자가 주사제를 요청하는데 영향을 미치는 특성을 규명하기 위해 일반적 특성(성, 연령, 결혼여부, 보험형태, 지역규모, 질환, 교육, 소득 등), 주사제에 대한 인식, 태도를 독립변수로 하고, 주사제 처방 요청여부를 종속변수로 하며, 16개 행정지역을 무작위 효과로 층화한 다수 준 분석을 실시하였다.결과: 연구대상에 포함된 응답자는 997명이었고(응답률 82.2%), 응답자 중 24%가 병의원 방문 당시 주사제를 요구했다고 응답했고, 58%가 한번 이상 주사제를 맞은 경험이 있다고 보고했다. 92%가 주사제에 대해 잘못된 인식을 갖고 있었고, 15%는 의사가 부적절하게 주사제를 처방한다고 응답했다. 다수준 로지스틱 회귀분석 결과, 남성의 경우(Odds ratio(OR) 0.71, 95% confidence interval(CI) 0.52-0.99), 고졸이상자(OR 0.63, 95% CI 0.41-0.96), 기혼자(OR 1.72, 95% CI 1.01-2.92)가 주사제를 더 요구하는 것으로 나타났고, 대도시에 비해 농촌지역 환자가(OR 2.12, 95% CI 1.24-3.63), 호흡기계 질환으로 방문한 경우(OR 1.48, 95% CI 1.03-2.12), 주사제를 처방하면 경구제에 비해 신뢰감이 생긴다는 응답자의 경우(OR 1.91, 95% CI 1.33-2.73) 주사제를 더 요구하는 것으로 나타났다. 결론: 본 연구결과 여성, 기혼자, 농촌 거주자, 호흡기계 질환으로 방문한 환자의 경우와 주사를 맞으면 신뢰감이 생긴다는 잘못된 태도를 가진 환자가 주사제를 요구하는 것으로 나타났고, 이러한 환자특성을 고려하여 주사제 사용을 감소시키기 위한 정책을 실시하는 것이 필요하겠다.

• Journal of the Korea Convergence Society
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• v.9 no.4
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• pp.57-63
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• 2018

IoT devices are used in many areas to perform various roles and functions in a cloud environment. However, a method of access control that can stably control the IoT device has not been proposed yet. In this paper, we propose a hierarchical multi-level property access control scheme that can perform stable access of IoT devices used in a cluster environment. In order to facilitate the access of the IoT device, the proposed method not only provides the ID key (security token) unique to the IoT device by providing the IoT Hub, but also allows the IoT Hub to authenticate the X.509 certificate and the private key, So that the private key of the IoT device can not be seen outside the IoT device. As a result of the performance evaluation, the proposed method improved the authentication accuracy by 10.5% on average and the processing time by 14.3%. The overhead of IoT Hub according to the number of IoT attributes was 9.1% lower than the conventional method.

• Journal of Gastric Cancer
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• v.2 no.3
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• pp.157-162
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• 2002

Purpose: The prognosis of stage IV gastric cancer is very grave. However, some of these patients survive long periods after surgery. This study was undertaken to investigate various clinico-pathological profiles related to the prognosis for these long-term survivors. Materials and Methods: One hundred fifty-five patients with stage IV gastric cancer who underwent a gastric resection from 1992 to 1997 at Hanyang University Hospital were evaluated. Thirty-three patients who survived more than 5 years after surgery were designated as long-term survivors (LTS); on the other hand, one hundred twenty-two patients who died within 5 years after surgery were named as short-term survivors (STS). Results: The rate of the patients with T4, preoperative serum level of CA19-9 greater than 37 U/g protein, and peritoneal dissemination was lower for the LTS than in for the STS (P=0.002, P=0.045, and P=0.0000, respectively). Tumors were smaller (7.3 cm vs. 8.9 cm, P=0.030) and metastatic lymph node were fewer (19.7 vs. 28.8, P=0.019) for the LTS than for the STS. Curative surgery ($\76\%\;vs.\;\46\%$, P=0.002) and a subtotal gastrectomy ($\76\%\;vs.\;46\%$, P=0.026) were performed more frequently for the LTS than for the STS. From a univariate survival analysis, depth of invasion, distant metastasis, extent of gastric resection, postoperative chemotherapy, and curability were statistically significant factors. From a multivariate survival analysis, curability, depth of invasion, and extent of gastric resection were independent prognostic factors. Conclusions: If feasible, we have to exert our efforts to achieve curative surgery although the tumor is considered to be a stage IV gastric cancer. Thereafter, multi-modality treatments including chemotherapy can be considered to improve the prognosis.

• Genomics & Informatics
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• v.14 no.4
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• pp.181-186
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• 2016

Glucose tolerance tests have been devised to determine the speed of blood glucose clearance. Diabetes is often tested with the standard oral glucose tolerance test (OGTT), along with fasting glucose level. However, no single test may be sufficient for the diagnosis, and the World Health Organization (WHO)/International Diabetes Federation (IDF) has suggested composite criteria. Accordingly, a single multi-class trait was constructed with three of the fasting phenotypes and 1- and 2-hour OGTT phenotypes from the Korean Association Resource (KARE) project, and the genetic association was investigated. All of the 18 possible combinations made out of the 3 sets of classification for the individual phenotypes were taken into our analysis. These were possible due to a method that was recently developed by us for estimating genomic associations using a generalized index of dissimilarity. Eight single-nucleotide polymorphisms (SNPs) that were found to have the strongest main effect are reported with the corresponding genes. Four of them conform to previous reports, located in the CDKAL1 gene, while the other 4 SNPs are new findings. Two-order interacting SNP pairs of are also presented. One pair (rs2328549 and rs6486740) has a prominent association, where the two single-nucleotide polymorphism locations are CDKAL1 and GLT1D1. The latter has not been found to have a strong main effect. New findings may result from the proper construction and analysis of a composite trait.

• 한국HCI학회:학술대회논문집
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• 2008.02a
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• pp.384-389
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• 2008

Recently, the necessity of systems which effectively store and retrieve video data has increased. Conventional video retrieval systems retrieve data using menus or text based keywords. Due to the lack of information, many video clips are simultaneously searched, and the user must have a certain level of knowledge to utilize the system. In this paper, we suggest a natural language based conversational video retrieval system that reflects users' intentions and includes more information than keyword based queries. This system can also retrieve from events or people to their movements. First, an event database is constructed based on meta-data which are generated by domain analysis for collected video in an office environment. Then, a script database is also constructed based on the query pre-processing and analysis. From that, a method to retrieve a video through a matching technique between natural language queries and answers is suggested and validated through performance and process evaluation for 10 users The natural language based retrieval system has shown its better efficiency in performance and user satisfaction than the menu based retrieval system.

• Journal of The Korean Astronomical Society
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• v.46 no.5
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• pp.191-200
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• 2013

Full-disk solar images are provided by many solar telescopes around the world. However, the observed images show Non-Radial Variation (NRV) over the disk. In this paper, we propose algorithms for detecting distortions and restoring these images. For detecting NRV, the cross-correlation coefficients matrix of radial profiles is calculated and the minimum value in the matrix is defined as the Index of Non-radial Variation (INV). This index has been utilized to evaluate the H images of GONG, and systemic variations of different instruments are obtained. For obtaining the NRV's image, a Multi-level Morphological Filter (MMF) is designed to eliminate structures produced by solar activities over the solar surface. Comparing with the median filter, the proposed filter is a better choice. The experimental results show that the effect of our automatic detection and restoration methods is significant for getting a flat and high contrast full-disk image. For investigating the effect of our method on solar features, structural similarity (SSIM) index is utilized. The high SSIM indices (close to 1) of solar features show that the details of the structures remain after NRV restoring.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.12 no.6
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• pp.1002-1008
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• 2001

The absorbing structure composed of multi-layered fiber reinforced composite materials was designed and microwave absorbing properties are investigated. On the basis of transmission line theory, the theoretical equations to predict the reflection loss and the appropriate composite material for each functional layer are suggested. The most significant result of this study is the successful design and fabrication of triple-layered composite laminates which has the superior microwave absorbing porperties (more than 10 dB in 4∼12 GHz range), without using the ferrite filler in the impedance transforming layer. In the two-layered composite laminate (absorber/substrate), however, the use of ferrite filler (about 40 wt %) in the absorbing layer is necessary to obtain the certain level of microwave absorbance. By combining the glass-fiber composite with ferrite filler and carbon-fiber composite substrate, the microwave absorbing properties more than 10 dB in 4∼12 GHz frequencies than be obtained.

• Journal of Environmental Policy
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• v.12 no.4
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• pp.23-44
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• 2013

Climate change affects human and natural environment. Many countries, including Korea, are trying to develop climate change adaptation strategies to minimize adverse impacts of climate change. To deal with climate change efficiently, decisions have to be made among many options. The objectives of this paper is to analyzes methodologies for prioritizing climate change adaptation measures. Each methodology has strength and weakness and information requirements are differ. We find multi-criteria analysis is one of useful tools considering current level of understanding on climate change adaptation. We suggest climate change risks(timing, likelihood, intensity of climate change impacts), feasibility of policy (equity, main-streaming, democracy), effectiveness (economic effectiveness, co-benefits, propagation effects) of adaptation measures as main evaluation criteria of prioritization.

• Journal of Digital Convergence
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• v.13 no.12
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• pp.381-390
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• 2015

One of the fundamental requirements of entertainment applications is interactivity with users. The mobile device such as the smartphone, however, does not guarantee it due to the limit of the application processor's computing power, memory size and available electric power of the battery. This paper proposes a methodology to boost responsiveness of interactive applications by taking advantage of the parallel architecture of mobile devices which, for instance, have dual-core, quad-core or octa-core. To harness the multi-core architecture, it exploits the POSIX thread, a platform-independent thread library to be able to be used in various mobile platforms such as Android, iOS, etc. As a useful application example of the methodology, a heavy matrix calculation function was transformed to a parallelized version which showed around 2.5 ~ 3 times faster than the original version in a real-world usage environment.

• Journal of Families and Better Life
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• v.16 no.2
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• pp.71-82
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• 1998

This study aimed to aimed to obtain some basis data for the housing consultation and information about housing through survey of needs for the housing consultation. Respondents were housewives from 395 households living in Seoul area. Questionnaire was used for survey and the collected data were classified by two items such as types of residence and age of housewives. The survey was performed during two weeks in September 1997 and analyzed by frequency mean and percentage using SAS program The finding are as follows; (1) According to the actual conditions of housing consultation the main source of information related to housing was a newspaper Those who had experience detached house had much more opportunities than those of multi-family house. The most frequent agency for housing consultation was a realty dealer showing 65.8%. However the percentage of visiting permanent housing exhibition centers was high among the people aged 20 to 30, noted 20.4%. (2) Level of understanding housing consultation showed 3.45 points among 5. This result indicated that the service system of housing consultation were required. Architects and interior designers were most preferred as specialists whom the respondents wanted to consult with . As to the contents of consultation the most required item was changing of interior space(22.6%). In case the housing information leaflet is sold the respondents were willing to pay 523 won for each of it. (3) Among leaflets related to various information leaflets about housing purchase were most preferred(21.0%) According to the result of the survey the need for the information about housing purchase indicated higher preference than about housing management. The fact could be thought that consumers' consciousness of housing should be changed. Therefore it is desirable to lead consumers to lengthen the expected life span of their house and value happiness of the house by providing them with consulting systems about housing management throug housing consultation materials and development of its programs.