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      • KCI등재

        지역사회에서 형성된 사회적 지지와 근로자의 사회심리적 스트레스간의 관련성

        임화영,김형수,최영환,장성훈,이건세,정최경희,오원기,최재욱,정춘화 대한산업의학회 2006 대한직업환경의학회지 Vol.18 No.4

        Objective: This study was performed to examine the relationship between community-based social support and psychosocial distress in workers. Methods: The study subjects were 596 workers recruited from 11 companies in Chungju city. A structured questionnaire was used to assess sociodemographics, health-related behaviors, job characteristics, job stress, work-based social support, community-based social support and level of psychosocial distress. Results: Hierarchical multiple regression analysis showed that workers with no chronic disease, exercise and sufficient sleep had a higher score of psychosocial distress than those with chronic disease, no exercise, and not enough sleep. Coworker's work-based social support and community-based social support were negatively associated with psychosocial distress. The R square value of total independent variables on psychosocial distress was 0.409, and that of community-based social support on psychosocial distress was 0.052. Conclusion: This study showed that community-based social support served as a protective factor against psychosocial distress in some workers. We recommend the establishment of a worksite stress reduction program in occupational level as well as community-based social support.

      • KCI등재
      • SCISCIESCOPUS

        Direct effectiveness of pneumococcal polysaccharide vaccine against invasive pneumococcal disease and non-bacteremic pneumococcal pneumonia in elderly population in the era of pneumococcal conjugate vaccine: A case-control study

        Kim, Jong Hun,Chun, Byung Chul,Song, Joon Young,Kim, Hyo Youl,Bae, In-Gyu,Kim, Dong-Min,Choi, Young Hwa,Jun, Yoon Hee,Choi, Won Suk,Kang, Seong Hee,Kwon, Hyun Hee,Jeong, Hye Won,Kee, Sae Yoon,Hur, Jia Elsevier Ltd. 2019 Vaccine Vol. No.

        <P><B>Abstract</B></P> <P><B>Background</B></P> <P>While herd effects and serotype replacement by childhood pneumococcal protein conjugated vaccines (PCVs) continues to accumulate worldwide, direct effectiveness of 23-valent pneumococcal polysaccharide vaccine (PPV23) against pneumococcal diseases in the elderly has been challenged. We estimated the direct effectiveness of PPV23 in the elderly population.</P> <P><B>Methods</B></P> <P>For a hospital-based case-control study, cases of invasive pneumococcal disease (IPD) and non-bacteremic pneumococcal pneumonia (NBPP) (adults ≥ 65 years) were identified in 14 hospitals participated in the pneumococcal surveillance program from March 2013 to October 2015, following implementation of PPV23 national immunization program (NIP) for the elderly in the Republic of Korea. Controls matched by age, sex, and hospital were selected at ratios of 1:2 (IPD) or 1:1 (NBPP). Clinical data and vaccination records were collected. Vaccine effectiveness was calculated as (1-adjusted odds ratio) × 100.</P> <P><B>Results</B></P> <P>We enrolled 148 IPD and 557 NBPP cases, and 295 IPD and 557 NBPP controls for analyses. Overall effectiveness of PPV23 against IPD was 28.5% [95% confidence interval (CI) −5.8%–51.6%] and against NBPP was 10.2% (-15.1-30.6) in all patients ≥ 65 years. However, in subgroup analysis of patients aged 65–74 years, PPV23 was protective against IPD [effectiveness 57.4% (19.4–77.5)] and against NBPP [effectiveness 35.0% (2.3–56.7)]. Furthermore, serotype-specific effectiveness of PPV23 against IPD was 90.6% (27.6–98.8) for PPV23-unique serotypes and 81.3% (38.6–94.3) for PPV23 serotypes excluding serotype 3.</P> <P><B>Conclusions</B></P> <P>This study indicates that PPV23 with broad serotype coverage might be beneficial in preventing IPD and NBPP due to non-PCV13 serotypes in the young-elderly, with potentially increasing effectiveness in the setting of childhood PCV NIP.</P> <P><B>Highlights</B></P> <P> <UL> <LI> National immunization program for PPV23 for the elderly was implemented in Korea. </LI> <LI> PPV23 was effective against IPD and NBPP for young elderly patients aged 65–74. </LI> <LI> Effectiveness of PPV23 against IPD was higher for PPV23 unique serotypes. </LI> <LI> PPV23 was non-protective against IPD caused by PCV13 serotypes. </LI> </UL> </P>

      • 鐵筋 콘크리트 有孔보의 거동에 관한 실험적 연구(Ⅱ)

        최종만,이화직,하영철,곽윤근 國立金烏工科大學校附設生産技術硏究所 1994 産業技術開發硏究 Vol.10 No.-

        Openings through beams are required for the passage of utility ducts and pipes, and they are freqently encountered in the design of modern buildings. They are particularly important in multistory buildings where the use of openings in beams can mean lower story heights, leading in turn to a multiplicity of savings. Therefore, the designers are often faced with the necessity of providing adequate openings in the buildings. However, provision of openings may cause problems of excessive cracking and deflection, and may severly affect the strength of a beam. An experimental investigation is carried out on twelve reinforced concrete beams with square openings. The size of opening, and it's location are considered as major variables. The specimens were tested under two point loading. Loads were usually applied in steps of 0.5 ton up to failure to observe the crack initiation and propagation, initial diagonal cracking, midspan deflection, concrete strain and reinforcement strain.

      • SCOPUSKCI등재
      • 담양신설 IC의 교통소음도 조사연구

        최형일,강영주,채희정,김연풍,조도호,설동화,정숙경 조선대학교 환경공해연구소 2007 環境公害硏究 Vol.20 No.1

        After the vehicle has become a large formation with high-speed, loud noise from an express highway is increasing, and the number of large-scale apartment complexes, which are recently being constructed in the metropolitan area nearby the express highway and IC, is increasing gradually. Compared with a main road, the traffic volume and the speed of a vehicle between IC and the ramp way [turn-off] are smaller. If the ramp way is rightly connected with the downtown area, however, the traffic-noise that comes about in surrounding areas will be in conjunction with the traffic-noise from the main road of express highway and that of the ramp way. This research has selected a place that hasn't had a road or a commercial quarter nearby the main-road of IC and ramp way. Then we have studied the traffic-noise status under minimizing influence of its outer-noise, which occurs in IC. 1. The traffic volume change of a small and full-sized car with time has been kept on regularity in 2004 and 2005. As the traffic volume of a full-sized car has diminished remarkably, it has been maintaining through 6:00a.m.-10:00 a.m. As it has decreased since lO:OO a.m.. we have also observed the traffic proportion going up. 2. Monthly traffic volume of small cars was higher in May, August and October than other months. We have observed that the high traffic volume during these months is due to the following: May-The Damyang festival, August-a high-demand season, October-viewing scarlet maple leaves. Monthly traffic volume of full-sized cars was generally higher in August, but it has decreased during 2006. This was due to the many construction trucks that were working on the extension of the 88 Olympic expressway. Therefore, there was more traffic volume in 2006 compared to 2004 and 2005. 3. In this study, the noise figures have been less than 55 dB(A) in 18 spots. There were 14 spots from 55dB(A) to 58dB(A). 58-61dB(A) : 20, 61-64dB(A) : 17, 64-67dB(A) : 18. There were 8 spots we observed at the highest level from 67dB(A) to 70dB(A). Those were the nearby spots separating the main road and Damyang IC. 4. Traffic-noise at the boundary between IC and the main road of an expressway was higher than that of the same distance in other places. 5. We have observed that traffic-noise is low in places with mountains that serve the role of soundproofing walls. Thus, the fundamental sound hadn't affected it.

      • KCI등재

        시각 커뮤니케이션으로서의 패션 일러스트레이션에 관한 연구 : 은유와 환유를 중심으로 Based on Metaphor and Metonymy

        최정화,유영선 한국의류산업학회 2003 한국의류산업학회지 Vol.5 No.2

        The purpose of this study is to analyze the expression and possibility of metaphor and metonymy as a visual communication means in the history of fashion illustration. The findings of this study were as follows : The 20th century ago, fashion illustration has shown a metaphor and metonymy in caricature and image drawing. From the 1900 to 1929, it has shown a metonymy in omission, figure's one part and metaphor in significant elements, colors, image dissection, parody, etc. From the 1930 to 1959, it has shown a metaphor in figure's substitution by surrealism and metonymy in simplification. From the 1960 the 1979, it has shown a metaphor in illusion and collage. Since 1980, it has shown a metaphor in figure's transformation, distortion, combination of different kinds by postmodernism.

      • TCP 트래픽의 성능 측정

        최우철,송화선,정영준 강원대학교 정보통신연구소 2003 정보통신논문지 Vol.7 No.-

        The performance evaluation of Internet traffics has been performed by factors such as RTT and packet loss. This individual evaluation method has some difficulties in determining service quality due to interoperations between those factors. This paper presents a hybrid performance evaluation formula for TCP traffics, which uses both RTT and packet loss. The formula has been defined by an interpretation model, which is derived from a TCP throughtput rate in congestion environment and a packet retransmission mechanism. The proposed formula has been applied to a data set collected from the KREN performance measure, and then has been shown to easily determine TCP performance variations. Thus, the proposed scheme can be used for a SLA monitoring system.

      • SCOPUSKCI등재

        Modified Free Wrap-around flap을 이용한 수무지 재건술

        최영화,황치원,정병훈,한명호 대한성형외과학회 1992 Archives of Plastic Surgery Vol.19 No.3

        The thumb is the most important part in the hand and its loss results in severely diminished function of the hand for pinch and grasp. There are several microsurgical and other methods to reconstruct and amputated or lost thumb such as toe-to-thumb transfer1)2)9) as well as several varieties of flaps. Among them, a free wrap around flap taken from the big toe, including the nail and an iliac bone graft as the cone of the reconstruction was a quite satisfactory procedure, but there were some problems. We performed a free wrap around flap on traumatically missing thumb with modification to include all part of the distal phalanx without iliac bone graft. The resorption and atrophy of a grafted iliac bone, a constant problem with Morrison's original procedure8), could be prevented by the modified method. The donor site defects were covered by remained medial flap for weight bearing area first, and full thickness skin graft for remained defected area. The results were good cosmetically and functionally without significant problems.

      • 농장 사육되는 타조에서 나타난 다리 기형의 증례 보고

        최종윤,손화영,전무형,조성환,김혜성,류시윤,박배근,이영원,윤원기 충남대학교 수의과대학 동물의과학연구소 2001 動物醫科學硏究誌 Vol.9 No.-

        Two farmed young ostrich chicks were applied to pathology laboratory at Chungnam National University. Grossly, one ostrich showed rotated tibiotarsus, the other showed rolled toes. Case 1 ostrich was hypertrophy of fibualis longus and tibial cranialis tendon and gastrocnemius tendon in crus, inflammation of flexor digitorum longus. In histopathological views, myocytes of fiburalis longus were showed hypertrophy and hyperplasia. It is not found any specific feature in X-ray of the case 2 ostrich. Limb deformities were detected frequently in farmed ostrich chicks in 2- to 3 weeks old. Limb deformities were an important cause of mortality in farmed ostrich chicks during the first 10weeks after hatch. Cause of limb deformities were considered a nutrition problem.

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