• 제목/요약/키워드: human factor

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망형태(望形態)에 대한 연구 (Study on Visible Diagnosis of Appearnce)

  • 김용찬;강정수
    • 동의생리병리학회지
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    • 제19권6호
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    • pp.1483-1490
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    • 2005
  • This study was written in order to help understanding of visible diagnosis of appearance(形). Visible diagnosis of appearance(形) is a very important factor of diagnosis and a first step of visible diagnosis. appearance(形) is closely connection with spirit(神), so is house of spirit(神). If we make a visible diagnosis of appearance(形), we know the prosperousness of energy and the relative seriousness of an illness. Spirit(神) is understood by appearances and movements of patient, and influenced by seasons, lands, human's relationship and the grade of age. By visible diagnosis of appearance(形), we can conclude existence or nonexistence of spirit(神), As comparing spirit(神) with appearance(形), we can decide good or bad prognoses. One man's own appearance(形) is determined by the five human type(五形人). There are very various points of changing form. As divided into principal groups, there are three main groups, that is, sky(天), earth(地) and man(人). The age and sex belong 治 the factor of sky(天), a direction and configuration of the ground(地形) belong to the factor of earth(地), the five human type(五形人) and white fatness(肥白) and black emaciation(黑瘦) belong to the factor of man(人).

임신토끼에 있어서 새로운 Recombinant Human Granulocyte Colony-Stimulating Factor(YHB6211)의 배.태자 발생독성평가 (Developmental Toxicity Study in the Embryos/Fetuses with a Recombinant Human Granulocyte Colony-Stimulating Factor (YHB6211) in Pregnant Rabbits)

  • 황재식;장호송;정은용;이수해;신지순;서동석;신장우;남상윤;김대중
    • Biomolecules & Therapeutics
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    • 제9권4호
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    • pp.311-317
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    • 2001
  • YHB6211, a newly developed recombinant human granulocyte colonystimulating factor, was administered at dose levels of 0, 3, 15, and 75 $\mu$g/kg/day intravenously to the pregnant New Zealand White rabbits (20 rabbits per group) during the organogenetic period, days 6 to 18 of gestation. All dams were subjected to Caesarian section on day 28 of gestation and their fetuses were examined for external, visceral, and skeletal abnormalities. No abnormalities in clinical signs, body weight changes, gross findings, mortality, and external appearance were found in all dams and fetuses exposed to 0, 3, and 15 $\mu$g/kg/day of YHB6211. However, in the group treated with 75 $\mu\textrm{g}$/kg/day of YHB6211, maternal body and uterine weights, fetal body weights and length, and the number of live fetuses were significantly decreased and further fetal mortality was remarkably increased. It is suggested that YHB6211 may have no side effect up to the dose level of 15 $\mu$g/kg/day, and there would be no teratogenicity for fetuses of rabbits up to 75 $\mu\textrm{g}$/kg/day even if it may have some toxic effects over 75$\mu\textrm{g}$/kg/day for dams and fetuses of rabbits.

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Development of the Numerical Guide for Cost-Benefit Analysis of Occupational Radiation Exposure In the Korean Next Generation Reactor

  • Sohn, Ki-Yoon;Kang, Chang-Sun
    • Nuclear Engineering and Technology
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    • 제29권1호
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    • pp.78-84
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    • 1997
  • The specific purpose of this study is to develop the numerical guide for the cost-benefit analysis of ORE ($/person-Sv reduction) to meet the criterion of ALARA in the design stage of the KNGR. In deriving the guide, the risk factor which is defined by the risk to unit collective radiation exposure dose (deaths/person-Sv) and the monetary value of human life ($/death) are required. The risk factor has been estimated from various clinical data accumulated for a number of years and continuously modified. And the monetary value of human life is usually quantified using the human capital approach. In this study, the risk to radiation exposure perceived by a group of people is investigated through an extensive poll survey conducted among university students in order to modify the existing risk factor for radiation exposure. And in evaluating the monetary value of human life, the QOL factor is introduced in order to incorporate the degree of public welfare or quality of life. As a result of study, a value within the range of 151, 000~172, 000 dollars per person-Sv reduction is recommended as the appropriate interim numerical guide for cost-benefit analysis of ORE to meet the criterion of ALARA in the design stage of the KNGR. A poll survey was also conducted in order to see whether the public acceptance cost of nuclear power should be incorporated in developing the guide, and the result of study shooed that such a cost does not need to be considered.

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Determination of buildup factors for some human tissues using both MCNP5 and Phy-X / PSD

  • Mohammad M. Alda'ajeh;J.M. Sharaf;H.H. Saleh;Mefleh S. Hamideen
    • Nuclear Engineering and Technology
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    • 제55권12호
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    • pp.4426-4430
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    • 2023
  • In this article, Exposure Buildup Factor(EBF) and the Energy Absorption Buildup Factor(EABF) have been determined for blood, brain, and muscle using the Monte Carlo method which is represented by MCNP5 codes and compared with geometric progression(G-P) fitting method which is represented by Phy-X/PSD online platform. The novelty of the present work is used an energy source of less than 0.1 MeV to determine buildup factors using MCNP5 and using Phy-X/PSD for some human tissues. thus, the energy range used in this case study was 0.06-3 MeV for penetration depths covered 0.5-3 MFP. Results of MCNP5 and Phy-X/PSD are validated against reference values of water that were reported at ANS-6.4.3. present results of EABFs and EBFs for the previously mentioned human tissues appeared good agreement between MCNP5 in comparison with Phy-X/PSD, whereas, the maximum average relative deviation did not exceed 2.37%. results of our article can be used in different medical applications, such as brachytherapy, radiotherapy, and diagnostics.

형질전환 식물세포배양을 이용한 Human Granulocyte Colony Stimulating Factor의 생산

  • 홍신영;권태호;장용석;양문식
    • 한국생물공학회:학술대회논문집
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    • 한국생물공학회 2001년도 추계학술발표대회
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    • pp.447-448
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    • 2001
  • Human garnulocyte-colony stimulating factor(hG-CSF), a hematopoietic growth factor$^{1)}$, was produced and secreted from tobacco cell suspension. hG-CSF produced from tobacco cell suspension culture is biologically active form. The produced amount of hG-CSF is about 100${\mu}g/L$ in 9 days after inoculation.

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Methodology for Assessing the State of Human Capital in the Context of Innovative Development of the Economy: A Three-Level Approach

  • Chulanova, Zaure K.;Satybaldin, Azimkhan A.;Koshanov, Amanzhol K.
    • The Journal of Asian Finance, Economics and Business
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    • 제6권1호
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    • pp.321-328
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    • 2019
  • The purpose of the study is to analyze the main approaches to assessing human capital and develop proposals for its most objective assessment of it at the different levels of manifestation - individual, microeconomic and macroeconomic. The article considers the basic approaches to the evaluation of human capital, used in practice: retrospective (costly) and prospective (income based). Cost based methods involve measuring the value of human capital based on the total costs associated with its formation. The proposed additional evaluation criteria, in particular, the use of the expert approach and the developed indicators of a qualitative assessment of the human capital of the enterprise will allow development that is more efficient and use of available human resources. Human capital is becoming a major factor in the formation and development of an innovative economy and knowledge economy. Accordingly, the proposed additions to the assessment of human capital at the country level are aimed at assessing it from a new angle, taking into account the current global trends in the formation of an innovative economy and digitalization. They meet qualitatively new requirements for human capital as the main productive factor in the creation of new highly efficient technologies that promote the active development of the social sphere, science, education, health, etc.

Activating Transcription Factor 3 is a Molecular Target for Apoptotic Effect of Silymarin in Human Colorectal Cancer Cells

  • Eo, Hyun Ji;Park, Gwang Hun;Jeong, Jin Boo
    • 한국자원식물학회지
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    • 제29권3호
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    • pp.281-288
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    • 2016
  • Apoptosis has been regarded as a therapeutic target because apoptosis is typically disturbed in human cancer. Silymarin found in the seeds of the milk thistle (Silybum marianum) has been reported to exert anti-cancer properties through apoptosis. This study was performed to investigate the molecular target for silymarin-mediated apoptosis in human colorectal cancer cells. Silymarin reduced the cell viability and induced an apoptosis in human colorectal cancer cells. ATF3 overexpression increased PARP cleavage by silymarin. Increased ATF3 expression in both protein and mRNA was observed in silymarin-treated cells. In addition, silymarin increased the luciferase activity of ATF3 promoter. Inhibition of JNK and IκK-α blocked silymarin-mediated ATF3 expression. The results suggest that silymarin induces apoptosis through JNK and IκKα-dependent ATF3 expression in human colorectal cancer cells.

Effect of Chlorella Growth Factor on the Proliferation of Human Skin Keratinocyte

  • Yong-Ho Kim;Yoo-Kyeong Hwang;Yu-Yon Kim;Su-Mi Ko;Jung-Min Hwang;Yong-Woo Lee
    • 대한의생명과학회지
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    • 제8권4호
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    • pp.229-234
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    • 2002
  • Chlorella is rich in chlorella growth factor (CGF). A review of the literature has described that CGF improves the capability of a Th1-based immunity, anticancer, antioxidant antibacterial activity, growth promotion, wound healing and so on, but has not studied the effect for the metabolism and the proliferation of human skin keratinocyte. The aim of this study was to examine the effect of metabolism and the proliferation of human skin keratinocyte in vitro. CGF was extracted with an autoclaving method which is a modified hot-water extraction method from dried chlorella and conformed by means of absorbance 0.22 at 260 nm. We have measured the extracellular acidification rate (ECAR) of the CGF by Cytosensor$^{\circledR}$ Microphysiometer and evaluated responsiveness depending upon the dosage on the HaCaT cell. The ECAR for the concentrations of 0.15, 1.5, 15, 150 $\mu\textrm{g}$/ml of CGF increased as a 103.6, 128.2, 149.0 and 423.9%, respectively compared to control (0.0 $\mu\textrm{g}$/ml, 100% ECAR). The ECAR for ErbBl tyrosine kinase inhibited by 4-anilinoquinazolines, $C_{16}$H$_{14}$BrN$_3$O$_2$.HCl on tile HaCaT cells with the amounts of 10 $\mu\textrm{g}$/ml of the CCF compared with 100 $\mu\textrm{g}$/ml of rhEGF. The conclusion of the study is that CGF might increase human epidermal keratinocyte proliferation through the interaction between the epidermal growth factor receptor and itself.

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변형성장인자-${\beta}_1$이 치주인대세포와 치은섬유아세포의 증식에 미치는 영향 (THE EFFECT OF TRANSFORMING GROWTH $FACTOR-B_1$ ON THE PROLIFERATION RATE OF HUMAN PERIODONTAL LIGAMENT CELLS AND HUMAN GINGIVAL FIBROBLASTS.)

  • 조은경;이재목;서조영
    • Journal of Periodontal and Implant Science
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    • 제25권3호
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    • pp.720-732
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    • 1995
  • 미분화중배엽세포의 분화에 관여한다고 알려진 변형성장인자-${\beta}1$이 초기배양한 치주인대세포와 치은섬유아세포에 각기 다른 농도와 시간에 따라 변형성장인자-${\beta}1$을 주입했을때 두 세포의 세포증식능에 미치는 영향을 알아보고 각 조건에 따른 두 세포간의 증식능을 상호 비교해 보고자 본 실험을 실시하였다. 교정치료를 목적으로 내원한 환자의 제 1 소구치 부위의 정상치은을 절제하고, 건강한 제 1 소구치를 발거하여 치은섬유아세포와 치주인대세포를 분리, 배양하여 변형성장인자-${\beta}1$을 주입시키지 않은 군을 대조군으로 하고, 변형성장인자-${\beta}1$을 각각 0.25, 0.5, 1, 2.5, 5ng/ml로 주입시킨 군을 실험군으로하여 24시간, 48시간, 72시간 동안 배양하였으며, 각 시간별 배양 24시간 전에 $1{\mu}Ci/ml$ $[^3H]-thymidine$을 첨가하여 $[^3H]-thymidine$이 DNA내로 편재되는 속도로써 두세포군의 증식능을 측정하여 다음과 같은 결과를 얻었다. DNA합성능에 미치는 변형성장인자-${\beta}1$의 효과는 치주인대세포와 치은섬유아세포 모두에서 투여한 변형성장인자-${\beta}1$의 효과는 치주인대세포와 치은섬유아세포 모두에서 투여한 변형성장인자에 대하여 농도의존적으로 세포가 증식 하는 것으로 나타났다. 치은섬유아세포에 변형성장인자-${\beta}1$을 투여한 군에서는 24, 48, 72시간 모두에서 각 대조군에 비하여 농도의존적으로 증가하는 경향을 보였다. 24시간 적용시 대조군에 비해 1,2.5, 5 ng/ml투여군에서 통계적으로 유의한 차이(P<0.05)를 나타내었고, 48시간 적용시에는 대조군에 비해 1, 2.5, 5 ng/ml 투여군에서 통계적으로 유의한 차이(P<0.05)를 나타내었다. 48시간 적용시에 가장 높은 증식능을 보였으며 72시간 적용시에는 48시간 적용에 비해 전반적으로 증식능이 감소하는 경향을 보였다. 치주인대세포의 DNA 합성능에 미치는 변형성장인자-${\beta}$의 효과는, 변형성장인자-${\beta}$를 각각 24시간, 48시간 적용하였을�� 각 대조군에 비하여 농도의존적으로 증가하는 경향을 보였으며, 24시간 적용시에 대조군에 비해 1, 2.5, 5ng/ml 투여군에서 통계적으로 유의한 차이(P<0.05)를 나타내었고, 48시간 적용시에 대조군에 비해 2.5, 5ng/ml 투여군에서 통계적으로 유의한 차이(P<0.05)를 나타애었다. 72시간 적용시에는 5ng/ml의 농도에서 증식능이 감소하는 경향을 보였다. 48시간 적용시에 역시 가장 높은 증식능을 보였으며 72시간 적용에서는 48시간 적용에 비해 전반적으로 증식능이 감소되는 경향을 나타내었다. 변형성장인자-${\beta}1$의 적용에 따른 치주인대세포와 농도별 비교에서 치은섬유아세포군이 치주인대세포군보다 더 높은것으로 나타났다.

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위해성 평가 및 관리에 있어서 발암물질의 인체발암능력 평가 (Estimation of Human Carcinogenic Potency (HCP) of Carcinogens in Risk Assessment and Management.)

  • 이병무;김대영;김세기;김근종
    • 한국환경성돌연변이발암원학회지
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    • 제19권1호
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    • pp.39-45
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    • 1999
  • Human Carcinogenic Potency (HCP) can be estimated based on human daily exposure dose to carcinogen (Dh), body weight (Wh), 10% tumorigenic dose (TD10), and slope factor at TD10 (Q10) from 2-yr bioassay data. This approach is more relevant to humans generally exposed to low doses of carcinogens and can reduce more of extrapolation errors from high dose in animal experiments to low dose in humans than HERP (human exposure dose/rodent potency dose) proposed by Ames et al. (Science, 236, 271-280, 1987). TD50 and HERP have been routinely used to compare rodent carcinogenic potency and human carcinogenic potency, but those approaches have had limitations in extrapolation of high dose to low dose in humans. The advantages of HCP are to estimate human exposure dose (Dh) by human monitoring instead of environmental monitoring, to consider slope factor (Q10) which reflects the tendency of curve at low dose, and to use TD10 which represents much lower dose thant TD50 or HERP. HCP will be a useful parameter for the estimation of human carcinogenic potency in risk assessment and management of carcinogens.