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전체 선택해제
총 110건 검색
본문검색 결과만 보기
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Sensitivity Variations with pre-irradiation dose to P-type Semi conductor for radiation dosimetry
최태진, 김옥배 한국의학물리학회 의학물리 9 Pages
한국의학물리학회 의학물리 1995, Vol.6 No.1 49-57 (9 pages)
반도체검출기는 소형 및 방사선에 고감도특성을 갖고 있으나, 고에너지 광자선 및 전자선등의 조사에 의해 손상을 입어 감도저하를 초래하게 되며 계측시 선량재현성을 기대하기어려워진다. 실험대상은 P-형 실리콘 반도체검출기이며 선량율, 김출방향 및 온도 변화에 따른 선량특성이 조사되었고, 선량재현성을 높이기 위해 18 MeV 고에너지전자선으로 3KGy까지 전처리조사하고 광자선 및 전자선의 전처리조사선량에 대한 감도특성변화를 얻었다. 전처리조사가 작은 0.5KGy인 경우, 저선량율과 고선량율하의 단위선량당 감도는 약 35％의... -
Differential Radiation Sensitivity of Shikonin Derivatives from Lithospermum erythrorhizon S.
Lee. Min-Hee, Moon. Yu-Ran, Kim. Jin-Hong, Lee. In-Chul, Lee. Kang-Soo, Chung. Byung-Yeoup, Cho. Jae-Young 한국응용생명화학회 Journal of the Korean Society for Applied Biological Chemistry 5 Pages
한국응용생명화학회 Journal of the Korean Society for Applied Biological Chemistry 2010, Vol.53 No.6 724-728 (5 pages)
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A Proteomic Analysis of Leaf Responses to Enhanced Ultraviolet-B Radiation in Two Rice (Oryza sativa L.) Cultivars Differing in UV Sensitivity
Wu. Xing-Chun, Fang. Chang-Xun, Chen. Jin-Yang, Wang. Qing-Shui, Chen. Ting, Lin. Wen-Xiong, Huang. Zhong-Liang 한국식물학회 Journal of plant biology 11 Pages
한국식물학회 Journal of plant biology 2011, Vol.54 No.4 251-261 (11 pages)
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IMPACT OF UV RADIATION SENSITIVITY ON DERMATOPHYTES (Microsporum boullardii)
Shrivastava. J.N., Satsangi. G.P., Jain. Shradha 한국광과학회 Journal of photoscience: an international journal officail organ of the Korean Society of Photoscien 4 Pages
한국광과학회 Journal of photoscience: an international journal officail organ of the Korean Society of Photoscien 2002, Vol.9 No.2 466-469 (4 pages)
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The Optimal Condition of Performing MTT Assay for the Determination of Radiation Sensitivity
홍세미, 김일한, Hong. Se-Mie, Kim. Il-Han 대한방사선종양학회 대한방사선종양학회지 8 Pages
대한방사선종양학회 대한방사선종양학회지 2001, Vol.19 No.2 163-170 (8 pages)
목적 : 방사선조사후 세포의 생존 분획은 세포집락 측정기법으로 확인하는 것이 표준이나 많은 비용과 시간이 소요되는 단점을 갖고 있다. 이에 생존 세포의 tetrazolium염의 자색 formazan 침전물로의 환원시키는 능력에 그 기반을 둔 MTT 기법을 사용하여 세포집락 측정기법을 대체하기 위한 기법으로서의 유용성과 그 실행상의 최적조건을 규명하고자 하였다. 방법 : PCI-1, SNU-1066, NCI-H630, RKO등의 세포주에 0, 2, 4, 6, 8, 10 Gy의 방사선을 조사한 후 세포집락 측정 기법과 MTT기법으로 세포 생존 분획을 조사하였다. 세포집락... -
Fenofibrate decreases radiation sensitivity via peroxisome proliferator-activated receptor ${alpha}$-mediated superoxide dismutase induction in HeLa cells
Liu. Xianguang, Jang. Seong-Soon, An. Zhengzhe, Song. Hye-Jin, Kim. Won-Dong, Yu. Jae-Ran, Park. Woo-Yoon 대한방사선종양학회 Radiation oncology journal : ROJ 8 Pages
대한방사선종양학회 Radiation oncology journal : ROJ 2012, Vol.30 No.2 88-95 (8 pages)
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Enhanced Sensitivity to Gefitinib after Radiation in Non-Small Cell Lung Cancer Cells
Choi. Yun-Jung, Rho. Jin-Kyung, Back. Dae-Hyun, Kim. Hye-Ryoun, Lee. Jae-Cheol, Kim. Cheol-Hyeon 대한결핵및호흡기학회 Tuberculosis and respiratory diseases : TRD 7 Pages
대한결핵및호흡기학회 Tuberculosis and respiratory diseases : TRD 2011, Vol.71 No.4 259-265 (7 pages)
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Radiation up-regulates the expression of VEGF in a canine oral melanoma cell line
Irene Flickinger*, Barbara C Rütgen, Wilhelm Gerner, Ivana Calice, Alexander Tichy, Armin Saalmüller, Miriam Kleiter 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2013, 제 14권 제 2호 13 207-214 (8 pages)
ion was observed in the 8 and 10 Gy irradiated cells. In addition, a minor portion of TLM 1 cells expressed vascular endothelial growth factor receptor (VEGFR)-1 intracellularly. VEGFR-2 was detected in the cytoplasm and was down-regulated following radiation with increasing dosages. In TLM 1 cells, apoptosis plays an important role in radiation induced cell death. It has also been suggested that the significantly higher VEGF production in the 8 and 10 Gy group could lead to tumour resistance. -
Protective effect of the isoflavone equol against DNA damage induced by ultraviolet radiation to hairless mouse skin
Sitarina Widyarini 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2006, 제 7권 제 3호 2 217-223 (7 pages)
protect not only against ultraviolet (UV) radiation-induced cutaneous inflammation and photoimmune suppression, but also have antiphotocarcinogenic properties in mice. Because the state of DNA damage has been correlated with suppression of the immune system and photocarcinogenesis, we have therefore examined the potential of equol to offer protection from solar-simulated UV (SSUV) radiation-induced DNA damage in hairless mice by the immunohistochemical approach using monoclonal antibody specific... -
Frequencies of Micronuclei in Peripheral Lymphocytes in Korean Populations after Chronic Low-dose Radiation Exposure
Mi-Young An and Tae-Hwan Kim 대한수의학회 Journal of Veterinary Science 6 Pages
대한수의학회 Journal of Veterinary Science 2002, 제 3권 제 3호 11 213-218 (6 pages)
environmental radiation. Throughout this process, the actual biohazard risks and base-line chromosome damage were evaluated in human population. Further studies were carried out to provide evidence for the existence of individual variations in age-dependent responses through micronuclei (MN) assay. Spontaneous frequencies not only vary greatly between individuals, but also working or living areas. It was shown that the increased level of spontaneous cell with MN was observed with increasing age.... -
Distinct Cellular Calcium Metabolism in Radiation-sensitive RKO Human Colorectal Cancer Cells
YunTaiKim, SooShinJo, YoungJunPark, MyungZaLee, ChangKookSuh 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2014, Vol.18 No.6 10 509-516 (8 pages)
Radiation therapy for variety of human solid tumors utilizes mechanism of cell death after DNA damage caused by radiation. In response to DNA damage, cytochrome c was released from mitochondria by activation of pro-apoptotic Bcl-2 family proteins, and then elicits massive Ca2＋ release from the ER that lead to cell death. It was also suggested that irradiation may cause the deregulation of Ca2＋ homeostasis and trigger programmed cell death and regulate death specific enzymes. Thus, in this... -
Effects of Antioxidants on the Gamma-Radiation Damage of the Cultured Vascular Smooth Mucle Cells of Rat Aorta
Jong-DooLee, Hyoung-ChulChoi, Young-JinKang, Myung-SeKim, Kwang-YounLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2007, Vol.11 No.5 5 189-195 (7 pages)
were observed at 1500 or 2000 cGy. Submaximal concentrations of antioxidants, such as allopurinol, vitamin C, N-acetylcycteine (NAC), lipoic acid, dihydrolipoic acid and rebamipide tended to increase the cell viability suppressed by low dose of radiation (500 cGy), and enalapril and vitamin E increased it significantly. Allopurinol, vitamin E, NAC, lipoic acid, captopril and enalapril significantly increased G1 phase. Allopurinol and vitamin E tended to increase c-Myc expression, detected by... -
Effects of Ionizing Radiation on Postharvest Fungal Pathogens
한국식물병리학회 The Plant Pathology Journal 5 Pages
한국식물병리학회 The Plant Pathology Journal 2015, 31권 2호 9 176-180 (5 pages)
mycelial growth, spore germination, and morphological analysis under various conditions. Different fungi exhibited different radiosensitivity. The inhibition of fungal growth showed in a dose-dependent manner. Three fungal pathogens have greater sensitivity to the e-beam treatment compared to gamma or X-ray irradiations. The inactivation of individual fungal-viability to different irradiations can be considered between 3–4 kGy for B. cinerea and 1–2 kGy for P. expansum and R.... -
Muscle Radiation Attenuation in the Erector Spinae and Multifidus Muscles as a Determinant of Survival in Patients with Gastric Cancer
An Soomin, Kim Youn-Jung, Han Ga Young, Eo Wankyu 한국기초간호학회 Journal of Korean Biological Nursing Science 9 Pages
한국기초간호학회 Journal of Korean Biological Nursing Science 2022, Volume 24, No 1 2 17-25 (9 pages)
of muscle area and muscle radiation attenuation in the erector spinae (ES) and multifidus (MF) muscles in patients undergoing gastrectomy. Methods: Patients with stage I-III gastric cancer undergoing gastrectomy were retrospectively enrolled in this study. Clinicopathologic characteristics were collected and analyzed. Both paraspinal muscle index of ES/MF muscles (PMIEM) and paraspinal muscle radiation attenuation in the same muscles (PMRAEM) were analyzed at the 3rd lumbar level using axial... -
Optical sensitivity of DNA-dispersed single-walled carbon nanotubes within cement composites under mechanical load
Jin Hee Kim, Inkyu Rhee, Yong Chae Jung, Sumin Ha, Yoong Ahm Kim 한국탄소학회 Carbon Letters 7 Pages
한국탄소학회 Carbon Letters 2017, Vol.24 12 90-96 (7 pages)
We demonstrated the sensitivity of optically active single-walled carbon nanotubes (SWCNTs) with a diameter below 1 nm that were homogeneously dispersed in cement composites under a mechanical load. Deoxyribonucleic acid (DNA) was selected as the dispersing agent to achieve a homogeneous dispersion of SWCNTs in an aqueous solution, and the dispersion state of the SWCNTs were characterized using various optical tools. It was found that the addition of a large amount of DNA prohibited the... -
Combination Effects of 7β-Hydroxycholesterol and Radiation in Human Lung Cancer Cells
KANG. Kyoung Ah, LEE. Kyoung Hwa, CHAE. Sungwook, KIM. Dae Yong, PARK. Moon Taek, LEE. Su Jae, LEE. Yun Sil, HYUN. Jin Won 한국응용약물학회 The journal of applied pharmacology : the official journal of the Korean Society of Applied Pharmaco 7 Pages
한국응용약물학회 The journal of applied pharmacology : the official journal of the Korean Society of Applied Pharmaco 2005, Vol.13 No.4 220-226 (7 pages)
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Influence of gestational age at exposure on the prenatal effects of gamma-radiation
Sung-ho Kim, Se-ra Kim, Yun-sil Lee, Tae-hwan Kim, Sung-kee Jo, Cha-soo Lee 대한수의학회 Journal of Veterinary Science 6 Pages
대한수의학회 Journal of Veterinary Science 2001, 제 2권 제 1호 6 37-42 (6 pages)
of gamma-radiation. Pregnant ICR mice were exposed to a single dose of 2.0 Gy gamma-radiation at a gestational 2.5 to 15.5 days post-coitus (p.c.). The animals were sacrificed on day 18 of gestation and the fetuses were examined for mortality, growth retardation, change in head size and any other morphological abnormalities. The only demonstrable effect of irradiation during the preimplantation period was an increase in prenatal mortality. Resorptions were maximal on post-exposure day 2.5 after...
