• Title/Summary/Keyword: Kor-$h_T$

Search Result 13, Processing Time 0.021 seconds

A Study on the "Kor-T", a Modified Tapered h-index, by Applying the Ranking According to the Number of Citations of Journals in Evaluating Korean Journals (학술지의 피인용횟수 순위를 적용한 tapered h-지수의 변형지표 "Kor-hT"에 관한 연구)

  • Ko, Young Man;Cho, Soo-Ryun;Park, Ji Young
    • Journal of the Korean Society for information Management
    • /
    • v.30 no.4
    • /
    • pp.111-131
    • /
    • 2013
  • This study describes the meaning of and the formula for Kor-$h_T$, which is a modified index built on the tapered h-index by applying 'the ranking according to the number of citations of journals'. This study evaluated the de-duplication rate of index values of Kor-$h_T$ and analyzed the change in the correlation between the index values and evaluation elements using the Korea Citation Index data from 2008 to 2010. Kor-$h_T$ is compared with h-index, tapered h-index, and IF. As a result, Kor-$h_T$ appeared to be superior to other indexes on de-duplication rate. It is also shown that there is a very strong positive correlation between the evaluation elements, the number of citations and the number of articles of journals, and the index values of Kor-$h_T$.

The effect of polysaccharide isolated from the root of Acanthopanax koreanum on B cell activation

  • Han, S-B;Ahn, H-J;Yoon, Y-D;Kim, Y-H;Lee, J-J;Moon, J-S;Lee, C-W;Lee, K-H;Park, S-K
    • Proceedings of the Korean Society of Toxicology Conference
    • /
    • 2002.11b
    • /
    • pp.183-183
    • /
    • 2002
  • Many polysaccharides isolated from plants have been shown to enhance various immune responses in vivo and in vitro. Here we demonstrate that polysaccharide isolated from the root of Acanthopanax koreanum (AK) has a unique mode of immunostimulation with regard to its cell-type specificity.(omitted)

  • PDF

Activation of NF-kB and mitogen-activated protein kinases by polysaccharide isolated from Platycodon grandiflorum in RAW 64.7 macrophages

  • Yoon, Y-D;Han, S-B;Hong, D-H;Kang, J-S;Kim, H-M
    • Proceedings of the Korean Society of Toxicology Conference
    • /
    • 2002.11b
    • /
    • pp.184-184
    • /
    • 2002
  • In our previous study, we reported that PG, a polysaccharide isolated from Plyatycodon grandiflorum, activated macrophages and B cells, but not T cells. Here, we investigated in more detail the mechanism of action of PG in macrophage activation.(omitted)

  • PDF

A Study on the Correlation between the index Values and Qualitative·Quantitative Evaluation Elements and the Distinction Ability of the Journals' Registration Condition of the KCI-based Composite index in Evaluating Korean Journals (한국 학술지 평가를 위한 KCI 기반 복합지표의 지수 값과 질적·양적 평가요소 사이의 연관성 및 학술지 등재 상태 구별 능력에 관한 연구)

  • Ko, Young-Man;Park, Ji-Young
    • Journal of the Korean Society for Library and Information Science
    • /
    • v.46 no.2
    • /
    • pp.245-260
    • /
    • 2012
  • This study aims to analyze the change in the correlation between the index values and qualitative quantitative evaluation elements by applying 'the decile of total number of articles' instead of the average annual number of articles in Kor-Factor2, and to evaluate the distinction ability between registered journals and register nominee journals of the KCI. The correlation between the index values and qualitative quantitative evaluation elements was analyzed by calculating the correlation coefficient between the index values and the evaluation elements, and then the correlation was compared with that of Kor-Factor2. To evaluate the distinction ability, we carried out independent samples t-test on the mean difference between index values of register nominee journal group and registered journal group and compared the mean difference with that of Kor-Factor2, IF and journal h-index. As a result, we found that the modified index applying the decile of total number of articles was effective in improving the balance among the correlation between the index values and qualitative quantitative evaluation elements compared to Kor-Factor2, and the new index appeared to be superior to other indexes on distinction ability of the journal's registration condition in the KCI.

Methodology for Evaluating Transportation-Induced Regional Development (교통유발에 의한 지역개발 평가방법론)

  • 안승범
    • Proceedings of the KOR-KST Conference
    • /
    • 1996.12a
    • /
    • pp.7-16
    • /
    • 1996
  • In this paper a modeling paradigm is described for answering the following questions: What would be the economic impact A, the social impact B, the demographic impact C, the land-use impact D, the environmental impact E and the user benefit F, over geographic scale G for a transport investment H at time T. The paradigm is illustrated for two ITS technologies: Advanced Transportation Management System (ATMS)and Advanced Vehicle Control Systems (AVCS).

  • PDF

A STUDY ON THE CHANGE OF T-LYMPOCYTE AND NATURAL KILLER CELL IN H & N CANCERS (두경부악성 종양 환자의 T-lymphocyte 및 Natural Killer Cell에 대한 연구)

  • 김상윤;조영주;이재담;이봉재;추광철
    • Proceedings of the KOR-BRONCHOESO Conference
    • /
    • 1991.06a
    • /
    • pp.20-20
    • /
    • 1991
  • 악성종양의 발생과 진행에 면역 방어기능이 중요한 역할을 하리라는 가설은 모두가 공감하는 사실이다. 이중 T-lymphocyte와 Natural killer cell (이하 NK cell이라함)은 종양 면역학에 특히 중요한 임파구로 이런 임파구의 혈액분포양상은 면역방어기능을 짐작할 수 있는 간접적인 자료가 될 수 있다. 저자들은 치료전 두경부 악성종양환자에서 혈액을 채취하여 T-lymphocyte와NK cell의 분포양상을 검사하고, 방사선치료 환자에서는 NK cell activity를 측정하였기에 다음과 같은 결과를 보고하는 바이다. 1) 두경부 악성 종양 환자군에서 CD3+ cell은 감소하고 NK cell은 증가하며 CD4/CD8 비율은 변화가 없었다. 2) 병변이 진행되면서 CD3+ cell과 CD4+ cell은 감소하고 NK cell은 증가하였으며 CD4/CD8 비율의 변화는 없었다. 3) 방사선치료에 의해 CD3+ cell과 CD4+ cell, CD4/CD8 비율은 감소하였고, NK cell과CD8+cell은 증가하였다. 4) 방사선치료에 의한 CD4/CD8 비율의 감소와, CD8+ cell의 증가는 NK cell의 증가에 의한 것이라 추정되고, NK cell을 제외하면 CB4/CD8 비율의 변화는 없었다. 5) 방사선치료 환자에서 NK cell activity는 증가하였고, 이런 증가가 T-lymphocyte기능의 감소를 보상해 주고 있었다.

  • PDF

RELIABILITY OF IMPEDANCE AUDIOMETRY IN OTITIS MEDIA WITH EFFUSION (고막천자를 시행한 소아 삼출성 중이염환자에 대한 Impedance 청각검사의 신뢰도)

  • 김희남;박기현;박인용;임상빈;이승철;홍지헌
    • Proceedings of the KOR-BRONCHOESO Conference
    • /
    • 1987.05a
    • /
    • pp.11.3-12
    • /
    • 1987
  • 삼출성 중이염은 소아연령군의 이비인후과질환중 유병율이 가장 높은 질환의 하나로 1867년 Politzer가 최초로 기술하고 치료법을 소개한 이후 그 병인 및 치료법이 다양하게 연구 개발되어 왔으며 1950년대 및 1960년대 electroacoustic impedance unit의 발전에 따라 진단법에 많은 변혁이 이루어졌다. 연자들은 1981년 1월1일 부터 1986년 12월31일까지 삼출성 중이염으로 중이내 통기관유치술 및 고막천자를 시행한 15세 이하의 290명의 환자를 대상으로 tympanogram의 양상 및 술전 기골도차를 조사하여 중이내 삼출액의 유무 및 점성도의 예측도에 대하여 살펴 보았다. Tympanometric peak pressure (T. P. P.) 가 -50mm$H_2$O 미만이며 compliance가 0.4 c.c.미만인 영역을 B영역으로. T.P.P.가 -50mm$H_2$O 미만이며 compliance가 0.4 c.c. 이상인 영역을 C영역으로 정하였을 때 중이내 삼출액 유무의 예측도는 B영역이 87.5%. C영역은 81.48%였으며 삼출액이 장액성일 경우의 예측도는 B영역이 24.51%, C영역이 22.72%이었고, 삼출액이 점액성일 경우의 예측도는 B영역이 70.39%, C영역이 54.54%이었다. 연령을 15세 - 7세군과 6세이하의 군으로 세분하였을 경우에도 비슷한 결과를 얻었다.

  • PDF

Construction of a Baculovirus Expression System Using Hyphantria cunea Nuclear Polyhedrosis Virus for Eukaryotic Cells

  • Lee, Hyung-Hoan;Kang, Bong-Joo;Park, Kap-Ju;Cha, Soung-Chul
    • Journal of Microbiology and Biotechnology
    • /
    • v.8 no.6
    • /
    • pp.676-684
    • /
    • 1998
  • Baculovirus transfer and expression vectors with Hyphantria cunea nuclear polyhedrosis virus (HcNPV) were constructed. An initial transfer vector, pHcEV, constructed using HcNPV was previously reported (Park et al. 1993. J. Kor. Soc. Viral. 23: 141-151). Herein, the size of the vector was properly reduced, and a functionally perfect vector was constructed and named pHcEV-IV (6.7 kb). The vector has a 2.2-kb HcNPV DNA sequence in the 5'-flanking region of the vector's polyhedrin gene promoter. The 1.8-kb HcNPV DNA sequence, poly A signal sequence, T3 primer sequence, and 13 multicloning site sequences, in order, were ligated in front of the translation start codon of the polyhedrin gene. The cloning indicating marker lacZ gene was inserted into the pHcEV-IV, named pHcEV-IV-lacZ, and transferred into the wild-type virus. Recombinant expression virus, lacZ-HcNPV, was constructed by replacing the lacZ gene in the pHcEV-IV-lacZ with the polyhedrin gene of the wild-type virus. The recombinant virus was isolated from blue plaques that produce $\beta$-galactosidase without polyhedra. The lacZ gene insertion was confirmed by Southern hybridization analysis. The expression of the lacZ gene in Spodoptera frugiperda cells infected with the lacZ-HcNPV was examined by SDS-PAGE and colorimetric assay. One 116-kDa LacZ protein band appeared on the PAGE. The production rate of the $\beta$-galactosidase was approximately 50 international units (IU) per min per ml between 2 to 5 days postinfection (p.i.). The highest activity occurred at five days p.i. was 170 IU/min/$m\ell$. The enzyme activity first appeared about 20 h p.i. as measured by colorimetric assay.

  • PDF

Field Application of a Continuously Aerated Bio-Reactor (CABR) for the Treatment of Swine Wastewater (양돈분뇨처리에 있어서 연속폭기배양조(CABR)의 현장적용연구)

  • Lee, Myung-Gyu
    • Journal of Animal Environmental Science
    • /
    • v.1 no.1
    • /
    • pp.55-64
    • /
    • 1995
  • A wastewater purifying system using phototrophic bacterium, Rhodopseudomonas capsulata, is currently in operation in several countries, One of them, is a continuously aerated bioreactor(CABR) system, which treats concentrated swin wasterwater using small amounts of phototrophic bacteria as additive bacterial seeding. Using this plant, total biochemical oxygen demand was decreased to 13%, and most of volatile fatty acids were removed. About 40% of the wastewater(Influx) was evaporated during aerobic digestion for 24h, and 60% of that erupted in a decodorized foam(Efflux). The efflux had enough nutrients, N, P and K kor growing plant, as well as organic matters. When the efflux was applied to Italian ryegrass with high dose, fresh shoot and root weights were significantly greater, and $NO_3-N$ contents of the dried shoot were lower than those of control plant (CDU). These results indicate that the CABR plant is useful for reduction and deodorization of swine wastewater and the efflux from CABR can be used for crop production as an organic fertilizer.

  • PDF