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황춘수,장통일,임현교 한국안전학회 2003 한국안전학회지 Vol.18 No.2
In recent years, the Korean Army made use of fork-lifters or conveyors when loading and/or unloading military material in order to prevent accidents and to promote efficiency of military material handling activities. However, in troops smaller than battalions, manual material handling activities are still committed for many reasons. In this thesis, a brand new loading/unloading device for efficient military material handling for manual workers was developed, and its validation study was conducted through objective assessment based on electromyography, subjective assessment based on Body-Map technique developed by Corlett and Bishop, and finally work performance comparison. The results of EMG analysis showed that muscular workload improved by 24% when using the device compared to manual work without the device, and complain of each body part was remarkably reduced. In addition, remarkable effectiveness enhancement was observed in the work performance. Consequently, it could be concluded that ergonomic devices like one developed in this research should he studied further in the ergonomic sense as well as in the economical sense.
Paraquat 투여 백서에서 Cyclophosphamide와 Dexamethasone의 치료 효과
신정철,신양수,유병전,임현성,정태흥,박찬국,오금탁,이병래 朝鮮大學校 附設 醫學硏究所 1991 The Medical Journal of Chosun University Vol.16 No.1
Paraquat (N,N'-dimethy 1-4,4'bipyrydinium : Gramoxone^(R), a widely used herbicide, is extremely toxic to all green plants and many eukaryotic organisms. In human, paraquat intoxication leads to multiple organ failure, it preferentially damages the lung, kidney and liver and may result in death. The participation of superoxide in initiating tissue damage by administration of paraquat is well known in which one electron reduction of paraquat leads to the formation of radical species which react with molecular oxygen to give superoxide. This process initiates immunological changes with the activation of neutrophilic leukocytes, which is related to further production of superoxide. In this experiment, therapeutic effects of cyclophosphamide and dexamethasone on blood cell count, malondialdehyde as a indicator of lipid peroxidation, and antioxidant enzymes levels in the lung, liver and kidney of paraquat intoxicated rats were inbestigated. The WBC count were significantly decreased by combined treatment of cyclophosphamide and dexamethasone in paraquat intoxicated rats at 3 and 5 days but RBC count were not changed. The contents of malondialdehyde were significantly decreased in the lung and Kidney by combined treatment at 10 days after paraquat intoxication. The catalase acitvities were markedly increased in the lung and liver of rats at 10 days after paraquat intoxication, and superoxide dismutase activities showed minimal changes in the lung, liver and kidney of rats by combined treatment. These results suggest that paraquat induced tissue damage in rats can be redeced by combined administration of cyclophosphamide and dexamethasone.
당뇨 쥐에 대한 한약재복합추출물로 만든 현미율무밥의 혈당강하 효과
이현순 ( Hyeon Sun Lee ),공현주 ( Hyun Joo Kong ),이언희 ( Eon Hee Lee ),황수정 ( Su Jung Hwang ),정현아 ( Hyeon A Jung ),김미림 ( Mi Lim Kim ),최은미 ( Eun Mi Choi ),장정현 ( Joung Hyeon Jang ),양경미 ( Kyung Mi Yang ) 대한본초학회 2014 大韓本草學會誌 Vol.29 No.3
Objectives : The purpose of this study was to evaluate boiled rice made from unpolished rice, Job`s Tears, and extract from medicinal herbs mixture (HGMCJE) for hypoglycemic effect on STZ-induced diabetic rats. Methods : In the response of glucose tolerance, control and diabetic rats groups was intubated with glucose and HGMCJE. Furthermore, boiled 100% polished rice (P rice), boiled unpolished rice mixed with white rice and Job`s tears (polished rice:unpolished rice:Job`s tears=60:25:15, UPJ-rice), and UPJ rice made from HGMCJE (HUPJ-rice) were intubated to control and diabetic rats groups, respectively. Then, blood glucose concentration, incremental blood glucose, and area under the curve (ΔAUC) were analyzed in every experimental groups, and these data were used to evaluate glycemic response. Results : When glucose and p rice were intubated in control and diabetic rats, blood glucose concentration, incremental blood glucose, and incremental response ΔAUC of diabetic groups were significantly increase than control groups. But administraion of a single dose of extract from medicinal herbs mixture and HUPJ-rice in control and diabetic rats inhibited the remarkable increase the level of postprandial blood and ΔAUC at 60, 90, and 120 min Conclusions : These results indicate that when intubation of glucose and P rice were out of control on postprandial glycemic response in diabetic rats. But postprandial glycemic response was well-modulated by administrating a single oral dose of HGMCJE and HUPJ-rice. Therefore, HGMCJE can be developed as an effective hypoglycemic agent.
Prevalence of Bacterial Species in Skin, Urine, Diarrheal Stool and Respiratory Samples in Dogs
Suk-Kyung Lim(Suk-Kyung Lim),Ye-Ji Kang(Ye-Ji Kang),Dong Chan Moon(Dong Chan Moon),Hyun-Ju Song(Hyun-Ju Song),Su-Jeong Kim(Su-Jeong Kim),Hyeon-Jeong Baek(Hyeon-Jeong Baek),Yoo-Jung Kim(Yoo-Jung Kim),S 한국예방수의학회 2022 한국예방수의학회 학술대회자료집 Vol.2022 No.-
Distribution and Antimicrobial Resistance of S. pseudintermedius in Dogs
Suk-Kyung Lim(Suk-Kyung Lim),Naila Boby(Naila Boby ),Dong Chan Moon(Dong Chan Moon),Hyun-Ju Song(Hyun-Ju Song),Su-Jeong Kim(Su-Jeong Kim),Hyeon-Jeong Baek(Hyeon-Jeong Baek),Ye-Ji Kang(Ye-Ji Kang),Yoo- 한국예방수의학회 2022 한국예방수의학회 학술대회자료집 Vol.2022 No.-
Lim, Young-Jun,Park, Su-Jung,Kim, Hyeon-Cheol,Min, Kyung-San The Korean Academy of Conservative Dentistry 2013 Restorative Dentistry & Endodontics Vol.38 No.1
Objectives: The aim of this study was to evaluate the shaping ability of newly marketed single-file instruments, Wave One (Dentsply-Maillefer) and Reciproc (VDW GmbH), in terms of maintaining the original root canal configuration and curvature, with or without a glide-path. Materials and Methods: According to the instruments used, the blocks were divided into 4 groups (n = 10): Group 1, no glide-path / Wave One; Group 2, no glide-path / Reciproc; Group 3, #15 K-file / Wave One; Group 4, #15 K-file / Reciproc. Pre- and post-instrumented images were scanned and the canal deviation was assessed. The cyclic fatigue stress was loaded to examine the cross-sectional shape of the fractured surface. The broken fragments were evaluated under the scanning electron microscope (SEM) for topographic features of the cross-section. Statistically analysis of the data was performed using one-way analysis of variance followed by Tukey's test (${\alpha}$ = 0.05). Results: The ability of instruments to remain centered in prepared canals at 1 and 2 mm levels was significantly lower in Group 1 (p < 0.05). The centering ratio at 3, 5, and 7 mm level were not significantly different. Conclusions: The Wave One file should be used following establishment of a glide-path larger than #15.
Clinical Features of Mpox Patients in Korea: A Multicenter Retrospective Study
Lim So Yun,Jo Hyeon Jae,Lee Su-Yeon,Ahn Miyoung,Kim Yeonjae,Jeon Jaehyun,Kim Eu Suk,Chin BumSik,Choi Jae-Phil,Kim Nam Joong 대한의학회 2024 Journal of Korean medical science Vol.39 No.4
Background: Mpox is a viral illness with a characteristic skin rash caused by the monkeypox virus. In 2022, Mpox spread throughout the world, and an epidemic through domestic transmission started in South Korea in early 2023. This study aimed to summarize the clinical features of Mpox patients in South Korea. Methods: This is a multicenter retrospective study conducted at four hospitals in South Korea. All adult patients diagnosed with Mpox who were admitted to the study hospitals between June 1, 2022 and May 26, 2023 and were discharged by June 30, 2023 were reviewed. Results: Sixty patients were included, accounting for 65.9% of Mpox cases reported in South Korea during the study period. Median age was 32 years and 97% (58/60) of patients were male. In total, 85% (51/60) of patients reported their sexual orientation as homosexual or bisexual. The most common route of transmission was sexual or close contact (55/60). Every patient had a skin rash and 88% (53/60) had constitutional symptoms. In total, 42% (25/60) of patients had human immunodeficiency virus and 25% (15/60) had concomitant sexually transmitted infections. Severe manifestations of Mpox were identified in only two patients. Conclusion: Mpox patients in South Korea were mainly young adult males and were infected through sexual contact. The clinical outcomes were favorable.