http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Han Moo-Jae,Yang Seung-Woo,Shin Yo-Han,Bae Sang-Il,Moon Young-Min,Jeon Wan,Yu To-Sol,Kang Jin-Kyu,Kim Jin-Young,Heo Seung-Uk,박성광,나정은,Chung Jin Beom 한국물리학회 2020 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.77 No.11
During radiotherapy, some patients owing to the variability in skin sensitivities, may experience adverse skin reactions for doses at which other patients are asymptomatic. Hence, when abnormal symptoms appear on a patient's skin, the etiology should be verified. Accordingly, a surface dosimeter on the skin can help ascertain whether accurate doses are irradiated. Furthermore, surface doses are measured in the field junction gaps during craniospinal irradiation or during large-area radiotherapy to avoid adverse reactions due to cumulative skin doses from multiple beams. However, the point dose measurement errors of surface dosimeters exceed approximately 10% and have low-positional accuracies because the attachment sites are approximated with the help of the naked eye. Moreover, accurate information on field junction gaps cannot be obtained. Therefore, in clinical practice, a flexible array dosimeter is required as it can measure the dose distribution on the body surface by adapting its shape to the body curvatures. In this study, we implemented a flexible array dosimeter and, based on its constituent materials, evaluated the attenuation rate associated with its use. A polyester (PET) film was used as the underlying substrate. HgI2 and PbI2 photoconductors were used for their good performances in films. Furthermore, the measurement accuracy was verified through comparisons with Monte Carlo simulation outcomes. The resulting PET film had an attenuation rate of 2.22% at a 50-μm thickness. At the minimum material thickness of 25 μm, the attenuation rates for HgI2 and PbI2 were 4.69% and 5.72%, respectively. Further research is needed to fabricate HgI2-based digital skin dosimeters with a thickness under 25 μm. Radiation detection and pixel resolution should be evaluated to accurately confirm the field junction gap.
Genetic Analysis of KCR as a New Hereditary Cataract Rat
Han-Jin Park,Jae-Woo Cho,Min-Sung Kang,Kyu-Hyuk Cho,Jin-Won Cho,Chang-Woo Song 한국실험동물학회 2007 Laboratory Animal Research Vol.23 No.4
Korea Cataract Rat (KCR) is a hereditary cataract rat in which lens opacitiy appears in the nuclear portion at 2 weeks of age. Phenotypic analysis of KCR lens and linkage analysis were carried out to obtain basic information for cataractogenesis. In histological examination of the lenses, it showed that dysgenesis of anterior suture and formation of numerous vacuoles beside posterior lens capsule. The degeneration in the nuclear region and the swollen vacuoles beside posterior lens capsule were examined in 2 weeks old KCR. For the linkage analysis, male homozygotes of KCRs and female Brown-Norway/SsNHsd rats were mated to produce F₁ hybrids. F₁ progeny were backcrossed to male KCR rats to produce backcross progeny, and were intercrossed to produce F₂ intercross progeny. The segregation ratio between mutants and normal progeny were 1 : 3 and 1 : 1 in F₂ intercross and backcross progeny, respectively (P > 0.05). The results of linkage analysis, the gene responsible for cataractogenesis was strongly linked to D5Rat108, D5Rat164 and D5Rat30 on choromosome (chr) 5. The responsible gene was provisionally named Kcr. In the vinicity of linkage region, we identified that Foxe3 involving in inducing Peters’ anomaly in human and dysgenesis lens in mouse was coded. Foxe3 is considered as a strong candidate gene of Kcr.
( Kyu-won Kwak ),( Sung-hee Nam ),( Kwan-ho Park ),( Heuisam Lee ),( Myung-sae Han ) 한국잠사학회 2018 International Journal of Industrial Entomology Vol.37 No.1
Bacterial species, Bacillus amyloliquefaciens and Lactobacillus species (L. sp.5-1), are known to inhibit the growth of pathogenic bacteria and fungi. Metarhizium anisopliae is a pathogenic fungal species which causes fatal damage to P. brevitarsis populations. Therefore, we investigated the inhibitory effect of B. amyloliquefaciens and L. sp. 5-1 on M. anisopliae induced fatality rates in P. brevitarsis. Samples of M. anisopliae -infected sawdust were treated with strain B. amyloliquefaciens KACC10116, strain L . sp. 5-1 KACC19351, and a combination of the two. P. brevitarsis were fed treated sawdust samples, and their subsequent fatality rate was monitored. The fatality rate fell below 1.5% after 10 days and decreased by approximately 40% after 15 days. On average, the fatality rate decreased by 20%, compared to the control. The difference in the decrease in fatality rate between B. amyloliquefaciens treatment and L . sp. 5-1 treatment was not significant. Results indicate that both strains exhibit high anti-fungal activity, which may be useful in environmental purification efforts. These strains may be used for effective prevention of fungal infection in P. brevitarsis.
Sang-Hyun Kang,Shin Hwang,Tae Yong Ha,Gi Won Song,Dong-Hwan Jung,Chul-Soo Ahn,Deok-Bog Moon,Ki-Hun Kim,Gil-Chun Park,Young-In Yoon,Yo Han Park,Hui-Dong Cho,권재현,Yong-Kyu Chung,Jin-Uk Choi,Sung Gyu Lee 대한이식학회 2019 Korean Journal of Transplantation Vol.33 No.4
Background: The mammalian target of the rapamycin inhibitor has dual inhibitory effects on cell growth and angiogenesis. This study aimed to analyze the usage of everolimus on actual immunosuppression (IS) regimens through a cross-sectional study in a high-volume liver transplantation (LT) center. Methods: Our institutional LT database was searched for adult patients who underwent primary LT surgery between January 2010 and December 2016. We identified 2,093 LT recipients with observation periods of 1 to 8 years. Results: We divided the 2,093 recipients into three groups according to the posttransplant follow-up period as follows: group A (12–36 months; n=680), group B (37–60 months; n=560), and group C (>60 months; n=853). The individual IS agents were tacrolimus in 1,807 patients (86.3%), cyclosporine in 169 patients (8.1%), mycophenolate mofetil (MMF) in 1,310 patients (62.6%), and everolimus in 115 patients (5.5%). The most common IS regimens were tacrolimus-MMF combination and tacrolimus monotherapy, regardless of the posttransplant period. Patients with pretransplant malignancies were administered everolimus more frequently than those without pretransplant malignancies (P<0.001). In 102 patients with hepatocellular carcinoma recurrence or de novo malignancies, IS regimens included everolimus-tacrolimus in 41 patients (40.2%), tacrolimus-MMF in 27 patients (26.4%), tacrolimus in 20 patients (19.6%), MMF in 10 patients (9.8%), cyclosporine in three patients (2.9%), and cyclosporine-MMF in one patient (1.0%). Conclusions: Administration of everolimus after LT has been gradually increasing with the expansion of indications in our institutional practice. Currently, the role of everolimus is minimal and not comparable to that of tacrolimus, but it has a unique position in the field of IS after LT.
Sang Ah Yi,Jieun Lee,Sun Kyu Park,Jeom Yong Kim,Jong Woo Park,Min Gyu Lee,Ki Hong Nam,Jee Hun Park,Hwamok Oh,Saetbyul Kim,Jihoon Han,Bo Kyung Kim,Dong-Gyu Jo,Jeung-Whan Han 고려인삼학회 2020 Journal of Ginseng Research Vol.44 No.1
Background: The biological and pharmacological effects of BST204, a fermented ginseng extract, havebeen reported in various disease conditions. However, its molecular action in metabolic disease remainspoorly understood. In this study, we identified the antiadipogenic activity of BST204 resulting from itsinhibition of the S6 kinase 1 (S6K1) signaling pathway. Methods: The inhibitory effects of BST204 on S6K1 signaling were investigated by immunoblot, nuclearfractionation, immunoprecipitation analyses. The antiadipogenic effect of BST204 was evaluated bymeasuring mRNA levels of adipogenic genes and by chromatin immunoprecipitation and quantitativereal-time polymerase chain reaction analysis. Results: Treatment with BST204 inhibited activation and nuclear translocation of S6K1, furtherdecreasing the interaction between S6K1 and histone H2B in 10T1/2 mesenchymal stem cells. Subsequently,phosphorylation of H2B at serine 36 (H2BS36p) by S6K1 was reduced by BST204, inducing anincrease in the mRNA expression of Wnt6, Wnt10a, and Wnt10b, which disturbed adipogenic differentiationand promoted myogenic and early osteogenic gene expression. Consistently, BST204 treatmentduring adipogenic commitment suppressed the expression of adipogenic marker genes and lipid dropformation. Conclusion: Our results indicate that BST204 blocks adipogenesis of mesenchymal stem cells through theinhibition of S6K1-mediated histone phosphorylation. This study suggests the potential therapeuticstrategy using BST204 to combat obesity and musculoskeletal diseases.
Prevalence of Oryctes rhinoceros nudivirus disease in Allomyrina dichotoma in Korea, 2018
Kyu-Won Kwak,Heui-Sam Lee,Myung-Sae Han,Sung-Hee Nam,Kwanho Park 한국응용곤충학회 2018 한국응용곤충학회 학술대회논문집 Vol.2018 No.10
Allomyrina dichotoma (order Coleoptera, family Scarabaeidae) is used for development of pharmaceuticals, pet or educational purposes and animal feedstuffs. The disease occurrence and distribution of Oryctes rhinoceros Nudivirus were investigated in Allomyrina dichotoma in Korea using PCR and analyzed the DNA seqeunces using BLAST(Basic Local Alignment Search Tool). The virus infected larvae were collected from 10 insect rearing farms in five different regions (Gyounggi, Chungbuk, Chungnam, Jeonnam, Daejeon). Frequency of OrNV virus infection appeared differently depending on the regions or rearing facilities (open field, vinyl house, indoor breeding system and etc.). The collected samples of Allomyrina dichotoma raised on open fields showed the highest possibilities of OrNV virus infection. The OrNV average infection rate of open fields rearing systems was 50.0%.
Han-Young Yoon(윤한영),Jong-Bin Lim(임종빈),Kang-Sung Park(박강성),Wan-Kyu Park(박완규),Sung-Sik Park(박성식) 한국산학기술학회 2019 한국산학기술학회논문지 Vol.20 No.7
본 연구는 서비스 회사의 조직구성원들에 대한 서비스 마케팅에 있어서 내부서비스 품질에 대한 조직 구성원들의 인식을 살펴보고 이러한 인식이 조직효과성을 매개로 하여 고객지향성에 어떠한 영향을 미치는 지 실증 분석하고자 하였다. 최근 들어 한국의 항공시장 수요가 급증하면서 항공운송산업자인 항공사들은 치열한 고객 유치활동 전개를 통하여 서비스 산업에 있어서 가장 대표적인 산업으로 자리매김하였다. 국내 항공사에 소속된 조직구성원들을 표본으로 한 실증분석 결과 조직구성원들에 대한 임파워먼트가 증가할수록 그들이 인식하는 내부서비스 품질은 향상하는 것으로 나타났다. 하지만 이러한 조직구성원들에 대한 임파워먼트는 고객지향성에 직접적으로 아무런 유의한 영향을 미치지 않았다. 다시 말해서 항공사 내 부서와 직원 간 관계성이 개선될수록 직원들에게 부여되는 임파워먼트는 증진되면서 이러한 임파워먼트는 내부서비스품질 향상에 기여한 것이다. 향상된 내부서비스 품질은 직무만족도와 조직충성도를 향상시켜 궁극적으로 승객에 대한 고객지향성 개선에 긍정적인 영향을 주는 것으로 판명되었다. 항공사의 서비스 제공이 성공하기 위해서는 고객만족을 유발하는 고객지향성이 필수불가결하다. 이러한 고객지향성을 유발하기 위해서는 내부서비스 품질 향상이 뒷받침되어야 한다. 내부서비스 품질 향상을 위해서는 부서와 직원 간 소통 그리고 자신의 역량을 십분 발휘할 수 있는 업무환경 조성이 필요할 것이다. As the service industry develops, service quality, customer satisfaction, and human resource management are considered priorities in modern management to maintain a company’s growth. Therefore, understanding the strategic importance of service marketing is an essential task for modern companies. This study examined the relationship between the internal service quality of employees in the organization and customer orientation through organizational effectiveness. In the case of an airline, a service can be defined as an interaction between an external customer and an internal customer service provider. This interaction significantly affects the behavior and attitude of the employees. Based on the results, empowerment has a significant influence on the internal service quality, but it has no significant effect on customer orientation. As the relationship between department and employees improved, the more confident staff showed an improved ability to perform their work. Therefore, it is important that the organizational structure and the reporting system are as concise and clear as possible to allow employees to accurately recognize the authorities and responsibilities assigned to them and have autonomy and discretion in the framework.