Prevalence and different characteristics of two serotypes of <i>Streptococcus parauberis</i> isolated from the farmed olive flounder, <i>Paralichthys olivaceus</i> (Temminck and Schlegel), in Korea

Han, S Y,Kang, B K,Kang, B J,Shin, S P,Soen, B H,Kim, J M,Kim, J H,Choresca Jr, C H,Han, J E,Jun, J W,Park, S C Blackwell Publishing Ltd 2011 Journal of fish diseases Vol.34 No.10

<P><B>Abstract</B></P><P>The prevalence of two serotypes of <I>Streptococcus parauberis</I> isolated from the olive flounder, <I>Paralichthys olivaceus</I>, was evaluated in a total of 29 isolates between 2003 and 2010 in Korea. <I>Streptococcus parauberis</I> isolates were divided into two serologically distinct types (serotype 1 and serotype 2), except for one strain (S1091), using an agglutination assay with rabbit antiserum, and serotype 1 was identified as the dominant type (24 of 29 isolates) in this study. To identify the characteristics of the two serotypes of <I>S.?parauberis</I>, we conducted a biochemical test using the API 20 Strep kit, a transmission electron microscopy (TEM) assay, sequence analysis of 16S‐23S rRNA intergenic spacer region (ISR) and a pathogenicity test. In TEM, both serotypes possessed polysaccharide capsule layers around the cell surface when bacterial cells were treated with a homologous serotype of rabbit antiserum. However, we were unable to discriminate serotype‐specific biochemical characteristics and genetic characteristics of 16S‐23S rRNA ISR between the two serotypes. In the pathogenicity test, the serotype 1 strains induced significantly higher mortality than the serotype 2 strains in olive flounder when experimentally inoculated via the intraperitoneal route.</P>

Satisfaction with mammography in the National Cancer Screening Programme participants of age 40s in Korea

JEON, B.Y.,LEE, H‐,Y.,PARK, E‐,C.,CHOI, K.S.,JUN, J.K.,KIM, Y.,HAN, M.A.,YOON, N‐,H.,KIM, E.J.,JEON, S.M. Blackwell Publishing Ltd 2011 European journal of cancer care Vol.20 No.6

<P>JEON B.Y., LEE H‐Y., PARK E‐C., CHOI K.S., JUN J.K., KIM Y., HAN M.A., YOON N‐H., KIM E.J. & JEON S.M. (2011) <I>European Journal of Cancer Care</I><B>20</B>, 803–809</P><P><B>Satisfaction with mammography in the National Cancer Screening Programme participants of age 40s in Korea</B></P><P>The aim of this study was to evaluate satisfaction with the National Cancer Screening Programme of mammography in Korea and to examine the association between subscales of satisfaction and general satisfaction. We conducted a cross‐sectional telephone survey for women who had obtained a National Cancer Screening Programme mammographic screening at general hospitals between May and October 2008. The present study included 2005 women in their forties. We performed multivariate linear regression using dependent variable as general satisfaction and independent variables as subscales of satisfaction, such as pre‐screening information transfer, staff interpersonal skills, physical surroundings and results reporting. Participants were stratified according to the result of their mammogram as negative or positive. Mean score of satisfaction was above 2.5 of 4 for all subscales. Women who received positive results were less satisfied with all of subscale factors. Staff interpersonal skills were the most important factor that contributed to general satisfaction. Future efforts such as staff training programme of communication/attitude skills, ensuring privacy and explanation of possible discomfort of the screening would be needed.</P>

Impact of White Matter Changes on Activities of Daily Living in Mild to Moderate Dementia

Moon, So Young,Na, Duk L.,Seo, Sang Won,Lee, Jun-Young,Ku, Bon D.,Kim, Seong Yoon,Park, Kyung Won,Shim, Yong S.,Youn, Young Chul,Chung, Chan-Seung,Cheong, Hae-Kwan,Choi, Seong Hye,Cha, Kyung Ryeol,Kim S. Karger AG 2011 European neurology Vol.65 No.4

<P>The association between white matter changes and activities of daily living (ADL) in a large, well-defined cohort of patients with mild-to-moderate dementia (either Alzheimer’s disease or subcortical vascular dementia) were investigated. A total of 289 patients were divided into three groups (140 mild, 99 moderate, and 50 severe) depending on the degree of white matter changes as indicated on brain magnetic resonance image scans. Further, we analyzed the three groups’ performances on basic and instrumental ADL. The degree of white matter changes was associated with greater age, hypertension, previous history of stroke, higher Hachinski Ischemic Score, worse global cognitive and functional status, and an increased impairment of basic ADL and instrumental ADL. The increased impairment with regard to the severe group’s performance on both the basic and instrumental ADL remained significant after adjustment for age and hypertension. Tasks involving physical activities were most significant. This was the first study investigating the association between white matter changes and ADL in a large, well-defined dementia cohort. The present study suggests that severe white matter changes may be associated with higher impairment on both basic and instrumental ADL.</P><P>Copyright © 2010 S. Karger AG, Basel</P>

High‐Mobility Air‐Stable Naphthalene Diimide‐Based Copolymer Containing Extended π‐Conjugation for n‐Channel Organic Field Effect Transistors

Kim, Ran,Amegadze, Paul S. K.,Kang, Il,Yun, Hui‐,Jun,Noh, Yong‐,Young,Kwon, Soon‐,Ki,Kim, Yun‐,Hi WILEY‐VCH Verlag 2013 Advanced Functional Materials Vol.23 No.46

<P><B>Abstract</B></P><P>A high‐performance naphthalene diimide (NDI)‐based conjugated polymer for use as the active layer of n‐channel organic field‐effect transistors (OFETs) is reported. The solution‐processable n‐channel polymer is systematically designed and synthesized with an alternating structure of long alkyl substituted‐NDI and thienylene–vinylene–thienylene units (PNDI‐TVT). The material has a well‐controlled molecular structure with an extended π‐conjugated backbone, with no increase in the LUMO level, achieving a high mobility and highly ambient stable n‐type OFET. The top‐gate, bottom‐contact device shows remarkably high electron charge‐carrier mobility of up to 1.8 cm<SUP>2</SUP> V<SUP>−1</SUP> s<SUP>−1</SUP> (<I>I</I><SUB>on</SUB>/<I>I</I><SUB>off</SUB> = 10<SUP>6</SUP>) with the commonly used polymer dielectric, poly(methyl methacrylate) (PMMA). Moreover, PNDI‐TVT OFETs exhibit excellent air and operation stability. Such high device performance is attributed to improved π–π intermolecular interactions owing to the extended π‐conjugation, apart from the improved crystallinity and highly interdigitated lamellar structure caused by the extended π–π backbone and long alkyl groups.</P>

Seasonal Dynmics of Phytoplankton and Zooplankton Community in Lake Soyang

Kim, B 韓國陸水學會 1999 생태와 환경 Vol.32 No.2

화학 용액 담금의 열분해 방법에 의한 CdS 반도체의 성장

김홍복,김선미,권영규,차덕준,윤창선,김병호,고정곤,전용기,김광윤 群山大學校基礎科學硏究所 1998 基礎科學硏究 Vol.13 No.-

화학용액 담금의 방법에 의하여 다결정 CdS박막을 성장시켰다. 성장과정에서 온도조건, 몰농도 조건에 따라 CdS 다결정의 특성에 영향을 주는 요인들을 전자현미경, 광흡수 및 광전류 특성과 온도 및 빛의 세기에 따른 저항의 변화를 통해 분석하였다. Polycristalline CdS thin films have been grown by the chemical bath pyrolysis(CBP) method. The CdS films characteristics were investigated with scanning electron microscope(SEM), optical absorption measurements, photoconductivity, and resistance dependences on temperature and light intensity.

산란대기하에서 광위성 통신 업링크의 양각에 따른 송신 안테나의 설계

김영권,이종규,전석빈,한종석,김준환 延世大學校 電波通信共同硏究所 1996 電波通信論文誌 Vol.2 No.1

Today's wireless communication needs the super-high speed for picture transmission and high-speed data transmission as well as voice. The optical(laser) communication is suitable for this demands because of the very wide optical bandwidth. But to fulfill the optical communication, the atmospheric attenuation of cloudy weather must be overcome. Under the weather condition of haze, fog, rain, and snow, the atmospheric attenuation, which affects on the optical satellite up-link communication between geo-satellite and earth station, was studied in this paper. In this case, the scattering attenuation and absorption is the most serious effect. The poiting error weaken the optical receiving power, too. These three attenuation factors directly influence the diameter of optical transmitting antenna. In this paper, the anttena diameter of the earth station was calculated according to the elevation angle, weather condition and transmission rate. The specification of this paper's simualtion was the 10[W] ?? laser as an optical source, and the binary FSK as a modulation method and the optical heterodyne receiver. The diameter of the optical cassegrain receiving antenna was assummed 1[m], the coding gain was set to 10[dB], and the BER(Bit Error Rate) was set to ???. As a result, the diameter of the transmitting antenna is distributed from centimeters to about 100 meters according to the weather condition, elevation angle and transmission rate. In case of the 10[Mbps] transmission rate, the receiving anttena diameter under the condition of haze is designed below 2[cm]. Fog makes the anttena diameter over 5[m]. Rain makes the anttena diameter below 3[m]. And snow makes over 10[m] anttena. Above values was calculated in the region of 30° ~ 90° elevation angle.

박리성대동맥류에 관한 임상적 관찰 : 진단 및 치료의 최근 현황

김준수,박영배,김성국,전은석,최윤식,이영우 대한내과학회 1986 대한내과학회지 Vol.30 No.3

A retrospective clinical study was done on 37 cases of aortic dissection who had been admitted to Seoul National University Hospital from January, 1981 to June, 1985. 1) Aortic dissection was seen a little more frequently in men than women with M:F ratio of approximately 1.2:1. The peak incidence was in the fifth and sixth decades, with the range being 22 to 77 years of age. Most cases with age of less than 35 were associated with Marfan syndrome, Takayasu's disease, or suspected Behcet's disease. 2) Aortic regurgitation and pulse deficits were important features of proximal dissection, and bruits and pulsating masses were important features of distal dissection. 3) Echocardiography, abdominal ultrasonography, and/or CT scan may be useful screening or diagnostic procedures, before performing aortography. 4) In surgically indicated cases(18 cases), the hospital death rates were 75% in medically treated group(12 cases) and 17% in surgically treated group(6 cases).

제조업 산업장의 작업 공정과 분진 작업장내의 분진 농도에 관한 조사 연구

김병수,김성천,이채언,전진호,김진옥,김준연 인제대학교 1986 仁濟醫學 Vol.7 No.1

부산지역의 35개 제조업 산업장을 대상으로 작업 공정을 파악하고 분진 작업 부서별 총 분진 농도를 산정한 절과 선박건조 및 수선업의 분진 농도가 비교적 높게 시현되었으며, 많은 산업장에서1mg/m3 미만의 분진 농도를 정하였다. In order to contribute to improve working environments and preventive health effects for workers exposed to dust, the authors surveyed the working the working process and measured the total dust concentration in dusty process with the subject of 38 manufacturing industries in Pusan area for 4 months from April to July in 1985. The results were summarized as follows: 1.By the kind of industry, total dust concentration was relatively high in shipbuilding and repairing (2.31-12.83mg/m3) and motor vehicle manufacturing (0.27-6.81mg/m3), and relatively low in preserving and processing of fish, crustacea and similar foods (0.28-0.41mg/m3) and milling of cereals (0.34-0.98mg/m3). 2.By the dusty process, the mean concentration of total dust in major assembling (7.98mg/m3), minor assembling (6.26mg/3), pipe arrangement (5.08mg/m3), decorative (4.64mg/m3), Short(4.47/m3) of shipbuilding and repairing was above the threshold limit value (4mg/m3), and the upper level of total dust concentration range in assembling(6.81mg/m3) of motor vehicle manufacturing and grinding (4.03mg/m3) of stainless products manufacturing exceeded the threshold limit value. 3.The mean concentration of total dust was less than 1mg/m3 in most subjected dusty processes (about 65%) such as scouring, spinning of textile industry, rotary and adhesion of plywood manufacturing industry, and so on.

동측 하지에 병발한 다발성 골절

최완석,전병천,김연일,나수균,윤치순,최창욱,김학현 순천향대학교 1980 논문집 Vol.3 No.2

Twenty cases of simultaneous multiple fractures were managed from May 1975 to Dec. 1979. The management of fractures were divided into three groups: Group Ⅰ was treated with rigid internal or pin fixation (7 cases); Group Ⅱ treated with combination of conservative and surgical methods (9 cases) and Group Ⅲ treated with only conservative methods (4 cases). The results were as follows: 1. Male was affected more than female (M:F=1.5 : 1) and age range was between 14 to 72 years old. 2. There was a case of bilateral involvement. 3. The average time for fracture union in Group Ⅰ was shorter than other groups. 4. Complications in this series were 5 e.g., a case of joint stiffness in Group Ⅰ, one infection in Group Ⅱ and three cases (a delayed union, a malunion and an amputation) in Group Ⅲ.