• Title/Summary/Keyword: 평균 휘도

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Effect of Microwave Hyperthermia on Radiotherapy of Human Malignant Tumors -An Analysis of Clinical Response of 42 Patients- (극초단파를 이용한 국소온열 치료 효과 -표재성 종양 42예의 분석-)

  • Yoon Sei Chul;Oho Yoon Kyung;Gil Hak Jun;Chung Su Mi;Shinn Kyung Sub;Bahk Yong Whee
    • Radiation Oncology Journal
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    • v.5 no.1
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    • pp.31-36
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    • 1987
  • Radiobiological and clinical evidences indicate that hyperthermia combined with ionizing radiation produces a significant improvement in therapeutic effect of cancer. In general, malignant cells are more sensitive to heat than normal cells in the heat range of $41\~45^{\circ}C$. We report the experiences obtained from 42 patients with advanced malignant neoplasms managed with 2,450MHz microwave-induced local hyperthermia and ionizing radiation at the Department of Radiology, Kangnam St. Mary's Hospital, Catholic University Medical College. A clinical analysis of 42 thermoirradiated patients showed result of 11(26\%),\;15(36\%),\;11(26\%)\;and\;5(12\%)$ patients with complete response (CR), partial response (PR), minor response (MR) and no response (NR), respectively. Histologically there were $17(40.2\%)$ squamous cell carcinomas, $12(28.6\%)$ adenocarcinomas and $6(14.3\%)$ miscellaneous cancers. Eleven patients with CR consisted of five squamous cell carcinomas, five adenocarcinomas, and one chloroma. Among 15 patients with PR were five squamous cell carcinomas, five adenocarcinomas, three unknown primary tumors, and one poorly differentiated, and miscellaneous tumor each.

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The Relationship between Coronary Risk Factors and Coronary Calcium Score Detected by Computed Tomography Coronary Angiography in Korean Middle Aged Men (다중절편 방사선단층촬영 결과에 기반한 한국 중년 남성에서의 관상동맥 석회화와 심혈관질환 위험인자와의 연관성)

  • Park, Seung-Hyun;Kim, Young-Wook;Chae, Chang-Ho;Kim, Ja-Hyun;Kang, Yune-Sik;Park, Yong Whi;Jeong, Baek Geun
    • Journal of agricultural medicine and community health
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    • v.39 no.1
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    • pp.25-36
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    • 2014
  • Objectives: The objective of this study was to investigate the relationship between coronary artery calcification and risk factors of cardiovascular disease with multidetector computed tomography. Methods: Data were collected from 5,899 males between 30 and 59 years old by interview, survey, physical examination, blood test, and multidetector computed tomography in the university hospital from January 2010 to December 2011. We confirmed the coronary artery calcium scores of subjects by multidetector computed tomography and identified risk factors of cardiovascular disorders. We investigated the relationship between coronary artery calcification and risk factors of cardiovascular disorders. Results: Mean calcium score of the coronary arteries in 5,899 participants was 8.20, and 773 participants (13.1%) exhibited coronary artery calcification. The presence of coronary artery calcification was correlated to risk factors of cardiovascular disease (age, blood pressure, triglyceride, HDL cholesterol, LDL cholesterol, glucose, Apolipoprotein A-1, Apolipoprotein B, body mass index, waist circumference) and risk assessment tools of cardiovascular disorders. Significant predicted factors of coronary artery calcification had different patterns in each age group (30-39, 40-49, 50-59 years old). Conclusions: We confirmed the relationship between coronary artery calcification and either typical risk factors of cardiovascular disease or risk assessment tools of cardiovascular disease. In addition, we also observed that the pattern of these factors varied according to age. Therefore, age-related variation needs to be considered in management strategies to prevent cardiovascular disease.

Physiological Characteristics of Poplar Clones in the Saemanguem Reclaimed Land (새만금간척지에 식재한 포플러 클론의 생리적 특성)

  • Lee, Jong Kyu;Jang, Ji Hwi;Li, Yang;Kim, Hae Naem;Kwak, Myeong Ja;Khaine, Inkyin;Lee, Tae Yoon;Lee, Hyun Kyung;Kim, Ie Rae;Jang, Gyeong Hwan;Lee, Wi Young;Kang, Ho Duck;Woo, Su Young
    • Journal of Korean Society of Forest Science
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    • v.106 no.2
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    • pp.186-195
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    • 2017
  • This research aims to study the physiological characteristics of poplar clones in Saemanguem reclaimed land where has lower minerals and bad drainage than those in paddy field. In July and August, different poplar clones including Populus euramericana clone (Venziano and L.Avanzo) and deltoides hybrid clone (97-18 and 97-19) showed different physiological characteristics. Physiological characteristics of P. euramericana clones were better than those of P. deltoides hybrid clones. Especially, the average net photosynthetic rate ($A_{net}$) of clone Venziano were $18.62{\mu}mol\;CO_2\;m^{-2}{\cdot}s^{-1}$ and $17.11{\mu}mol\;CO_2\;m^{-2}{\cdot}s^{-1}$, respectively. Those were the highest numerical values among other poplar clones. On the other, the total chlorophyll and carotenoid contents of P. deltoides hybrid clones were higher than those of P. euramericana clones in July. Particularly, the total chlorophyll content of clone 97-18 was $2.37mg{\cdot}g^{-1}FW$. In August, those of P. deltoides hybrid clones decreased than in July. In term of the physiological activity such as net photosynthetic rate and stomatal conductance of P. deltoides hybrid clones were much lower in August than in July. As a result, physiological characteristics of P. euramericana Venziano clone was superior than the other clones in Short rotation coppice (SRC) in Saemanguem area.

Radiation Therapy for Pituitary Adenoma -Changes in Endocrine Function after Treatment- (뇌하수체선종의 방사선치료후 혈중 호르몬치의 변화)

  • Yoon Sei Chul;Jang Hong Suck;Kim Song Hwan;Shinn Kyung Sub;Bahk Yong Whee;Son Ho Young;Kang Joon Ki
    • Radiation Oncology Journal
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    • v.9 no.2
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    • pp.185-195
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    • 1991
  • Seventy four patients with pituitary adenoma received radiation therapy (RT) on the pituitary area using 6 MV linear accelerator during the past 7 years at the Division of Radiation Therapy, Kangnam St. Mary's Hospital, Catholic University Medical College. Thirty nine were men and 35 were women. The age ranged from 7 to 65 years with the mean being 37 years. Sixty five ($88\%$) patients were treated postoperatively and 9 ($12\%$) primary RT, To evaluate the effects of RT, we analyzed the series of endocrinologic studies with prolactin (PRL), growth hormone (GH), adrenocorticotrophic hormone (ACTH), leuteinizing hormone (LH), follicular stimulating hormone (FSH) and thyroid stimulating hormone (TSH) etc after RT. All but one with Nelson's syndrome showed abnormal neuroradiologic changes in the sella turcica with invasive tumor mass around supra- and/or parasella area. The patients were classified as 23 ($29\%$) prolactinomas and 20 ($26\%$) growth hormone (GH) secreting tumors, and 6 ($8\%$ ACTH secreting ones consisting of 4 Cushing's disease and 2 Nelson's syndrome. Twentynine ($37\%$) had nonfunctioning tumor and four ($5\%$) of those secreting pituitary tumors were mixed PRL-GH secreting tumors. The hormonal level in 15 ($65\%$) of 23 PRL and 3 ($15\%$) of 20 GH secreting tumors returned to normal by 2 to 3 years after RT, but five PRL and five GH secreting tumors showed high hormonal level requiring bromocriptine medication. Endocrinologic insufficiency developed by 3 years after RT in 5 of 7 panhypopituitarisms, 4 of seven hypothyroidisms and one of two hypogonadisms, respectively. Fifteen ($20\%$) patients were lost to follow up after RT.

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Evaluation of the Fiber Separation Method and Differences in the Storage Root Fiber Content among Sweetpotato (Ipomoea batatas L.) Varieties (고구마 괴근의 섬유질 분리 조건 탐색 및 품종별 섬유질 함량 차이)

  • Won Park;Im been Lee;Mi Nam Chung;Hyeong-Un Lee;Tae Hwa Kim;Kyo Hwui Lee;Sang Sik Nam
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.68 no.1
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    • pp.20-26
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    • 2023
  • Fiber content in the storage roots of sweetpotato varies between different varieties. For examples, the high fiber content of certain types has a poor texture when steamed or roasted. This study was conducted to evaluate the optimal sieve mesh size for separating fibers, the chemical composition of fibers and differences in fiber content among different varieties. We found that the separated fiber content (dry weight) of mashed and steamed sweetpotato was higher after washing three times (143.3 mg/100 g) compared with that washed five times (128.4 mg/100 g). The Hogammi variety remained 85.9% of total fiber content at 10 mesh (2,000 ㎛) and 9.6% of total fiber content at 30 mesh (600 ㎛), and Jinyulmi remained 74.9 and 16.7% of total fiber content , respectively. Therefore, a 30 mesh sieve was considered the most suitable for fiber separation. Among the 10 studied cultivars, Jinhongmi showed the lowest amount of fiber (24.8 mg/100 g) and Hogammi had the highest amount (111.4 mg/100 g), which was 4.5 times larger than that of Jinhongmi. Cellulose, hemicellulose and lignin content of separated fibers showed no difference between the viscous-type Hogammi and powdery-type Jinyulmi varieties, with averages of 32.5, 22.3 and 29.6%, respectively. Correlation results using the Image J program showed a significant correlation between the distribution of the stained area and the fiber content (R = 0.74, p < 0.05). Staining distribution differed among varieties, suggesting that a simple fiber content test could be performed using the staining method on raw sweetpotato. These results provide useful information to help inform farmers on the fiber content of different sweetpotato varieties.