응급실에 내원한 환자에서 어지럼증의 원인과 임상양상의 분석

문원식,정경운,위준선,문정미,전병조,김용권,소정일,류진호,허탁,민용일 대한응급의학회 2001 대한응급의학회지 Vol.12 No.3

Background: Recently, The number of patients who have been complaining of the vertigo or dizziness has been increasing due to rapid growth of elderly population and senile disease. The differentiation of dizzy patients is not familiar to most emergency physicians. This study was designed to differentiate true vertigo and to investigate the clinical difference among central vertigo, peripheral vertigo, and other causes of dizziness. Methods: The authors analyzed the cases of 237 dizzy patients who visited the emergency department of Chonnam University Hospital during the recent 2 years. For the base of dizziness, associated past illnesses, severity, nystagmus type, and the causes of central and peripheral vertigo. Results: Female patients were 142(59.9%) and male patients were 95(40.1%). The most common age group was the 6th decade. The origin of dizziness was classified as peripheral cause(25.3%), central cause(32.9%), and others(41.8%). As to nature of the dizziness, the rotatory sense was dominant in peripheral vertigo and the floating sense and blurred vision in central vertigo. Peripheral vertigo was triggered by position change of head and body, and central vertigo by the eye movement. Audiograms I showed that most patients with central vertigo had normal hearing, but 46.7% of thoswith peripheral vertigo had an abnormal hearing disturbance. Nystagmus was more prevalent in peripheral vertigo Conclusion: History taking and physical examination played an important role in the diagnosis of dizzy patients. An important part of the diagnosis of a dizzy patient could be to evaluate the peripheral origin, the central origin and others causes. Because central vertigo may be associated with a significant neurological pathology, spectral radiological studies, including MRI and CT, are mandatory to rule out a devastating brain lesion.

Impact of Interferon-Based Treatment on Quality of Life and Work Related Productivity from the Korean Cohort in the MOSAIC Study

( Sang Hoon Ahn ),( Won Hyeok Choe ),( Yoon Jun Kim ),( Jeong Heo ),( Dorota Latarska-smuga ),( Jiho Kang ),( Seung Woon Paik ) 대한간학회 2017 춘·추계 학술대회 (KASL) Vol.2017 No.1

Aims: Chronic Hepatitis C Virus (HCV) infection increases the risk for progressive liver disease, hepatocellular carcinoma and negatively impacts the patient’s quality of life. HCV treatment is evolving with direct acting antivirals but IFN based therapy has been the standard of care for many years and remains available in some countries. The MOSAIC study aims to characterize patients with chronic HCV infection and assess the impact of IFN-containing treatment on health-related quality of life, work related productivity and health care utilization. Methods: MOSAIC is an international prospective multicenter observational study that has been conducted in 20 countries. Consecutive patients with chronic HCV infection were enrolled and those who initiated an IFN based regimen were prospectively followed for 48 weeks. We report results from the Korean cohort Results: 100 patients were enrolled: 86 were treatment naïve and 14 were treatment experienced. 33 patients initiated an IFN based regimen: 6 patients started IFN + RBV, 26 patients started Peg-IFN + RBV, none started Peg-IFN + RBV + DAA and 1 patient received other treatment. Among the treated cohort, demographic and disease characteristics were the following: the mean age was 54.5 years; 14 patients were male. 14 had minimal or no fibrosis, 2 portal fibrosis, 3 bridging fibrosis and 6 patients suffered from cirrhosis. HCV Genotype distribution was as follows: genotype 1: 11; genotype 2: 19 and genotype 3: 3. Table 1 describes the results at baseline and changes over 4, 12 and 48 weeks and end-of-treatment (EOT) for the quality of life and work productivity outcome measures (EQ-5D-5L, HCV-PRO and WPAI). Conclusions: Results from the Korean cohort of the MOSAIC study show a moderate trend for deterioration of health-related quality of life and work productivity associated with IFN based treatment for patients with chronic HCV infection during treatment period. Acknowledgements: The design, study conduct, analysis, and financial support of MOSAIC study were provided by AbbVie. AbbVie participated in the interpretation of data, review, and approval of the content of the abstract. All authors had access to all relevant data and participated in writing, review, and approval of this abstract. Medical writing support was provided by Olivier Van de Steen of Medeor-consulting, funded by AbbVie. Disclosures: Sang Hoon Ahn: served as an advisor and lecturer for Bristol-Myers Squibb, Gilead Sciences, F.Hoffmann-La Roche, Merck, AbbVie, and has received unrestricted grants from Bristol-Myers Squibb, Gilead Sciences, and F. Hoffmann-La Roche for investigator- initiated trials Won Hyeok Choe: Nothing to disclosure Yoon Jun Kim: Nothing to disclosure Jeong Heo: received a grant from GSK; Research support from BMS, and Roche; Advisor for Abbvie, BMS, Gilead Sciences, Pharma Essentia, SillaJen, and Johnson & Johnson. Dorota Latarska-Smuga, Jiho Kang: are employees of AbbVie, Inc. and may hold stock or stock options. Seung Woon Paik: received grant and research support from AbbVie, BMS, Gilead, GSK, Merck, Novartis, and Roche

공탄성시스템의 확률론적 제어에 대한 실험적 연구

김대중,박상태,정재욱,허훈,Kim, Dae-Jung,Park, Sang-Tae,Jeong, Jae-Uk,Heo, Hun 대한기계학회 1999 大韓機械學會論文集A Vol.23 No.11

A Newly proposed control methodology applied to the aeroelastic system experiencing flutter is investigated and its performance is verified experimentally. The flexible cantilever beam slicked with piezofilm sensor and piezoceramic actuator is modelled in physical domain. Dynamic moment equation for the system is derived via Ito's stochastic differential equation and F-P-K equation. Also system's characteristics in stochastic domain is analyzed simultaneously. LQG controller is designed and used in physical and stochastic domain. It is shown experimentally that the vibration of beam is controlled effectively by designed LQG controller in physical domain. By comparing the result with that of LQG controller designed in stochastic domain, it is shown that the new control method, called Heo-stochastic control technique, has better performance as a controller.

발광다이오드를 이용한 광질과 일장조절이 '딕시 화이트' 미니 시클라멘의 개화와 생장에 미치는 영향

허정욱,이춘우,백기엽 충북대학교 첨단원예기술개발연구센터 2000 연구보고서 Vol.5 No.-

The study was conducted to investigate the effect of different light qualities and day lengths controlled by using Light-Emitting Diode (LED) of blue, red, or blue plus red provided by LED System on flowering and growth of F1 Cyclamen miniature. Cyclamen persicum 'Dixie White' seedlings which have raised for 170 days after sowing were grown under conditions of 20° C air temperature and 60% relative humidity. Day length was controlled by blue, re, or blue plus red light (1:1 in energy ratio) with 10 or 12 hr for 63 days. Photosynthetic photon flux in the treatments with 10 or 12 hr was about 100 or 83 μmol m-2 s-1, respectively. Fluorescent lamp treatment of 12 hr day length was considered as a control. Flowering and growth in all the treatments were significantly affected by light quality or day length tested in the experiment. Number of flowers, which opened above the leaf canopy, was higher in red light treatment with 10 hr day length than that in control. Days to flowering were the shortest in day length treatment of 10 hr per day with blue plus red light among the treatments. Blooming period was also the longest in red treatment regardless of day length and mixture light treatment, and thus above 20 days prolonged than that in control. Otherwise, number of unfolded leaves or net photosynthetic rate was not significantly affected by the different light qualities and day lengths.

태권도 프로그램이 정신지체아동의 인지기능 발달에 미치는 영향

허정석,황영성,한성유,이수판,안인준 釜山大學校 附設 體育科學硏究所 2006 體育科學硏究所 論文集 Vol.22 No.1

The purpose of this study was to determine the effect of the Taekwondo program on cognitive competence of children with mental retardation. The subjects were 18 children with mental retardation. The children were devided into two groups. One group(n=9) was in an experimental group and the other group(n=9)was a control group. To find out any changes of their cognitive competence, the Taekwondo program was executed to the exercise group three times a week, for forty minutes a day over ten weeks......

선택적 버퍼링을 이용한 MPEG 비디오 스트림 다중화 기법

허정석,윤상호,김명균 울산대학교 2000 공학연구논문집 Vol.31 No.1

ATM 망에서 MPEG 비디오 스트림은 CBR과 VBR 서비스를 이용하여 전송한다. 그러나 MPEG 스트림 트래픽은 시간에 따라 크게 변하는 특성을 가지고 있어 대역폭을 낭비하지 않고 효율적으로 전송하는 것은 매우 어렵다. 지금까지 하나의 MPEG 비디오 스트림의 트래픽 특서 및 제어에 대한 연구는 많은 연구자들에 의해 이루어져 왔지만 여러 개의 MPEG비디오 스트림이 다중화기에 의해 다중화된 트래픽의 특성 및 제어에 대한 연구는 이루어지지 않았다. 본 연구에서는 이러한 다중화기에 의해 다중화된 프래픽의 가변성 및 최대 셀 전송률을 줄이기 위한 다중화 방법을 제안한다. 다중화 트래픽의 최대 셀 전송률을 줄임으로써 이러한 트래픽을 가능한 대역폭의 낭비를 줄이면서 효율적으로 전송할 수 있게 된다. On ATM networks, MPEG videl stream is transferred using CBR or VBR services. But, because the MPEG video traffic varies greatly from time to time, it is very difficult to transfer the MPEG stream efficiently without loss of transmission bandwidth. Until now, the study on the traffic analysis and control on a single MPEG videl stream has been done by many researchers, but the trafic analysis and control on a multiplexed traffic of multiple MPEG video streams has not been studied by any researcher. This paper proposes a multiplexing method to reduce the PCR and traffic variance of a multiplexed traffic of multiple MPEG video streams. By reducing the PCR of the multiplexed traffic, the multiplexed VBR traffic can be transferred efficiently with less loss of transmission bandwidth.

인구사회학적요인, 학교조직요인 및 교사의 사회심리학적요인이 직무만족도에 미치는 영향

정회욱 이화여자대학교 교육과학연구소 2006 교육과학연구 Vol.37 No.2

본 연구는 인구사회학적요인(교사의 성별, 연령, 교급, 학교위치, 보직유무), 학교조직요인(합리풍토, 인화풍토, 폐쇄풍토, 상사의 지원, 업무 스트레스), 사회심리학적요인(긍정적 성격, 부정적 성격, 자아존중감, 가정화목, 경제적 곤란)이 교사의 직무만족도에 미치는 영향을 검토하는데 그 목표를 두고 있다. 본 연구의 목표를 달성하기 위해, 전남지역 초·중·고등학교 교사 644명에게 '성취감 만족', '일 자체만족', '복지 만족'의 하위요소로 구성된 교사 직무만족 척도와 사회심리학적변인, 학교조직변인, 인구사회학적변인들에 관해 질문하는 설문지를 실시하였다. 인구사회학적변인들 중에서 학교 위치는 교사직무만족과 전혀 상관이 없었으나, 교사의 성별, 교급, 보직유무, 연령은 교사의 직무만족도와 유의하게 상관이 있었다. 학교조직변인들도 교사의 직무만족과 높은 상관관계를 나타내어, 상사의 지원이 높을수록, 학교 조직이 합리적으로 운영되고 학교조직의 인화단결이 잘될수록 교사들이 느끼는 직무만족도가 높은 것으로 나타났고, 학교가 폐쇄적 풍토를 지니고 교사들의 업무스트레스가 높을수록 교사들의 직무 만족도가 떨어지는 것으로 나타났다. 사회심리학적변인들의 경우, 교사가 긍정적 성격을 가지고 있고, 자아존중감이 높을 때, 그리고 가정이 화목할 때 직무만족도가 높은 것으로 나타났으며, 부정적 성격을 가지고 있을 때, 그리고 경제적 곤란을 느끼고 있을 때는 직무만족도가 낮은 것으로 나타났다. 인구사회 학적변인, 학교조직변인, 사회심리학적변인들을 동시에 사용하여, 중다회귀 분석한 결과를 살펴보면, 교사의 성별이나, 연령, 교급과 같은 인구사회학적요인보다는 합리풍토, 인화 풍토와 같은 학교조직요인과 교사의 긍정적, 부정적 성격과 자아존중감과 같은 교사의 사회심리학적요인이 교사직무만족도를 예측하는 데 훨씬 더 중요하게 작용하는 것으로 나타났다. The major goal of the present study was to investigate the influences of sociodemographic factors, school organizational factors, and teachers' sociopsychological factors on teachers' job satisfaction. Six hundred and forty-four elementary, middle, and high school teachers completed a questionnaire that included items on job satisfaction, sociodemographic characteristics of teachers, school organizational factors and teachers' sociopsychological factors. Among the sociodemographic variables, the location of the school was not related to teachers' job satisfaction, however, the teacher's gender, age, and the level of school were correlated with job satisfaction. School organizational factors such as the school's social closeness and supports of super-ordinates, and the teachers' sociopsychological factors such as positive personality and self-esteem were also significantly related to job satisfaction. Stepwise multiple regression analyses revealed that in general, school organizational factors and teachers' sociopschological factors play more important roles in teachers' job satisfaction than sociodemographic variables of teachers.

사회복지시설 종사자의 근로실태를 통해 본 복지행정의 문제점과 그 개선방안

허병도,감정기 慶南大學校法學硏究所 2004 慶南法學 Vol.19 No.-

Korea's Constitutional Law regulates the realization of a welfare state's ideology as a responsibility and obligation of the state. Welfare institutions play a very important role in this realization as the workers in these places accomplish this. However, workers in the social welfare work under unsatisfactory conditions and for low wages. The reason for this is that politicians in South Korea failed to appropriate properly the funds in the budget for them. In general, politicians do not understand enough about social welfare and the administration is still under a kind of authoritarianism. So their welfare administration cannot exercise their just rights. Certain things need to be done. First, employers must pay proper wages to workers of the social welfare service institutions in proportion to the quality and quantity of their work. Also, the government must budget adequate funds so that employers observe legal working conditions. Many parts of the administration guidelines differ from the Labor Standards Law, and thus revisions are required so that the operation of these institutions is self-regulated and does not un in opposition to the law. In addition, the workers of welfare institutions who want to keep their rights and interests themselves must exercise labors' three basic rights pertinently, but they also must make propositions to persuade the government. These kinds of efforts will be better as labor unions solidify solidarity with industrial unions. In this case, workers had better not disregard the fact that healthy labor union activities must not harm the clients of the institutions. I hope the government is very considerate to workers even before they engage in violent struggles and treat them well so that they do not need to oppose the law. This will help workers pour out their passion into their duties and responsibilities instead of into exercising their rights.

형광등과 발광다이오드의 혼합광 조사가 아게라텀, 메리골드 및 살비아 실생묘의 생장 및 형태형성에 미치는 영향

허정욱,이춘우 충북대학교 첨단원예기술개발연구센터 1999 연구보고서 Vol.4 No.-

One of the factors to decide seedling quality has been known to control the plant height on production of plug seedlings. The growth inhibitor, physical stimulation, or DIF technique for controlling the plant height was commonly used. The experiment was conducted by mixing light with fluorescent lamps and Blue, Red, and Far-red Light-Emitting Diodes (LEDs) as a light source to investigate the effects of light quality on the growth and morphogenesis of flowering plants. Ageratum (cv. Blue Field), Marigold (cv. Orange Boy), and Salvia (cv. Red Vister) plants which developed with two true leaves were placed for 70 days in growth chamber, where air temperature and relative humidity were maintained at 25℃ and 70%, respectively. Photosynthetic photon flux on the culture shelf was kept at 10 μmol m-2 s-1, and photoperiod was provided at 16 h per day. In FL+Blue, FL+Red, and FL+Far-red treatments, total dry weight of Salvia plants was above 2 times greater than in FL treatment. Plant height of the flowering plants was the tallest in mixing light treatment with fluorescent lamp (FL) and Far-red LED. The plant height in all the plants was not significantly different between the FL treatment and the mixing light treatment with FL and Red LED. Number of flowers in Marigold and Salvia plants was not significantly different in all the treatments. Flowering rate of Ageratum plants on day 70 was 100% in all the treatments regardless of light qualities, although Marigold plants never bloomed in FL+Blue and FL+Far-red treatments during the culture period.

방광 소세포암:1예 보고

허정남,김용수,조온구,고병희,임현철,함창곡 한양대학교 의과대학 2001 한양의대 학술지 Vol.21 No.2

Small cell carcinoma(also known as oat cell carcinoma) of the urinary bladder is an extremely rare malignancy and is derived from neuroendocrine stem cells. It is usually biologically aggressive tumor with early vascular and muscle invasion, so it has poor prognosis. Radiological findings of small cell carcinoma are similar to other malignancies of urinary bladder, therefore it is impossible to distinguish small cell carcinoma from other malignancies. Pathologic study is an only useful method for differential diagnosis of bladder tumor. We report here the case of 74th years old woman presented with painless gross hematuria.