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682篇 您的检索式:作者名="SHIRATO"
    题名 作者 年代 出处 被引量
1退化沙质草地自然恢复过程中土壤一植物系统的变化特征显示文摘研究了科尔沁沙地封育5a后退化沙质草地自然恢复过程中土壤—植物系统的变化特征,同时分析了土壤性状与植物特征之间的相互影响程度。(1)从流动沙地恢复到固定沙地,沙质草地植物群落的物种多样性、植被盖度、地下根量和地表枯落物残留量均趋于增大。β多样性测度值表明,在半流动沙地恢复到半固定沙地阶段,植物种周转速率大,群落结构变化明显。(2)在退化沙质草地的自然恢复过程中,表层土壤的结构性能明显改善,土壤养分的有效性相应提高。(3)相关分析显示,沙质草地表层土壤的理化性状与植物特征值之间存有密切的相关性(R2=0.33~0.84,P<0.01,n=20),表明退化沙质草地的恢复过程实质上是土壤—植物系统协同演变的过程,在该过程中,植物多样性的关键恢复期滞后于土壤环境的关键恢复期。张华 伏乾科 李锋瑞 Yasuhito Shirato 2003水土保持通报2003,23,6:26
2科尔沁沙地人工杨树林生态服务效能评价显示文摘采用定位观测法,系统评价了杨树(脚Populus smonii)林的防风、抗蚀和滞尘等生态服务效能及其间接价值,同时定量探讨了风速减弱系数与实测林地叶面积指数的关系.结果表明,在研究区主害风(西北风)天气下,林地迎风区6 H(H为平均树高)、3 H、林地中央、林地背风区林缘、6和8 H处2 m高度的日平均风速与对照点(流动沙丘)相比均有不同程度减弱,风速减弱系数在18.3%~66.2%之间.林地背风区6 H处0.25、0.5、1和2 m 4个高度的月平均风速减弱系数与林地叶面积指数呈显著非线性相关,其间存在良好的三次曲线关系(P<0.0001,R2=0.43~0.94,n=80).在主害风天气下,林地各观测点的地表日风蚀量与对照点相比大幅度降低,平均降幅85.2%~99.9%.在观测期内,林地中央的日平均降尘量为13.2 kg·hm-2,而林地迎风区6H处的日平均降尘量为9.9 kg·hm-2,林地的日滞尘能力约为3.3 kg·hm-2.张华 李锋瑞 张铜会 赵丽娅 Yasuhito Shirato 2003应用生态学报2003,14,10:14
3Hypofractionated stereotactic rad iotherapy alone without whole-brain irradiation for patien ts with solitary and oligo brain metastasis using noninvasive fixation of the skull显示文摘To evaluate the efficacy and toxicity of hypofractionated stereotactic radiotherapy(HSRT)using noninvasive fixation of the sk ull on solitary or oligo brain metastatic p atients as an alternative to stereotactic radiosurgery(SRS)using invasive fixation.The subjects were 87patients who had 4or fewer brain meta stases(50solitary,37oligometastases).Treatment was conducted on 159meta stases by using a linac-based stereotactic system.T he median isocentric dose was 35Gy in4fractions.Whole-brain irradiati on was not applied as an initial treatment.For the salvage treatmen t of metachronous brain metastases,repeat HSRT or whole-brain irradiation was applied.The actuarial1-year local tumor control rate was 81%.Treatment-related complicatio ns were observed in 4patients in the e arly period(<3months)and in 2patients in the late period.T he median survival period was 8.7mon ths.Metachronous brain metastases occurred in 30patients,and none of the 18patients who were eligible for salvage HSRT refused to re ceive it again.Hypofractionated stereotactic radiotherapy achieved tumor control and survival equivalent to those of SRS reported i n the literature.The results suggested that HSRT could be an alternative for solitary or oligo br ain metastatic patients with less to xicity and less invasiveness compared toAoyama H Shirato H Onimaru R Kagei K Ikeda J Ishii N Sawamura Y Miyasaka K 2003癌症2003,22,7:12
4Successful initial ablation therapy contributes to survival in patients with hepatocellular carcinoma显示文摘AIM: To evaluate the outcome predictors of percu- taneous ablation therapy in patients with unresectable hepatocellular carcinoma (HCC), especially to identify whether the initial treatment response contributes to the survival of the patients. METHODS: The study cohort included 153 patients with single (102) and two or three (51) HCC nodules 5 cm or less in maximum diameter. As an initial treatment, 110 patients received radiofrequency ablation and 43 patients received percutaneous ethanol injection. RESULTS: The Kaplan-Meier estimates of overall 3- and 5-year survival rates were 75% and 59%, respectively. The log-rank test revealed statistically significant differences in the overall survivals according to Child- Pugh class (P = 0.0275), tumor size (P = 0.0130), serum albumin level (P = 0.0060), serum protein induced by vitamin K absence or antagonist Ⅱ level (P = 0.0486), and initial treatment response (P = 0.0130). The independent predictors of survival were serum albumin level (risk ratio, 3.216; 95% CI, 1.407-7.353; P = 0.0056) and initial treatment response (risk ratio, 2.474; 95% CI, 1.076-5.692; P = 0.0330) based on the Cox proportional hazards regression models. The patients had a serum albumin level 3.5 g/dL and the 3- and 5-year survival rates of 86% and 82%. CONCLUSION: In HCC patients treated with percutaneous ablation therapy, serum albumin level and initial treatment response are the independent outcome predictors.Manabu Morimoto Kazushi Numata Kazuya Sugimori Kazuhito Shirato Atsushi Kokawa Hiroyuki Oka Kingo Hirasawa Ryonho Koh Hiromi Nihommatsu Katsuaki Tanaka 2007World Journal of Gastroenterology2007,13,7:8
5固沙林庇护区内降尘特征的初步观测显示文摘采用野外定位实测法,连续两年对科尔沁沙地24龄人工固沙杨树(Populussimonii)林庇护区内4~6月份及强沙尘暴事件中的降尘特征进行了观测研究。结果表明:(1)林地庇护区内4、5月份的降尘量较多,分别为273和437kg/hm2,6月份的降尘量较少,为171kg/hm2。(2)林地中央的滞尘效应在风蚀季节和强沙尘暴天气过程中十分显著。(3)林地庇护区内的降尘中粒径<0.02mm颗粒含量占60.7%,降尘中的全C、全N和速效P含量分别高达1.676%、0.163%和210.66mg/kg,这对风沙土表层土壤的细化和养分的积累具有重要的生态学意义。张华 何红 李锋瑞 Yasuhito Shirato 2005干旱区地理2005,28,2:5
6固沙林庇护区内土壤-植物系统的变化特征显示文摘用定位实测法,系统研究了科尔沁沙地24龄人工固沙杨树(Populussimonii)林庇护区内土壤-植物系统的变化特征,同时分析了土壤-植物系统中植物特征与土壤养分之间的相互影响程度。结果表明:(1)与对照点(流动沙丘)相比较,林地迎风区6H(H为平均树高)、3H、林地中央、林地背风区林缘、6H和8H处0~20cm层土壤中的粗沙含量降低26%~69%,粉、粘粒含量增加539%~1731%。土壤中全C、全N、速效P含量分别增加68%~1002%,40%~840%和45%~276%。(3)与对照点相比较,各观测点植物群落的物种优势度有所改变,物种丰富度提高了3~16种,覆盖度增加了43%~54%,地上生物量增加了72%~381g/m2。(3)相关分析结果表明,在林地庇护区内的土壤-植物系统中,植物的物种多样性、枯落物量和根量与土壤C、N含量的相互影响关系更为密切。张华 李锋瑞 Yasuhito Shirato 伏乾科 2003水土保持学报2003,17,3:3
7Effects of eicosapentaenoic acid on major coronary events in hypercholesterolaemic patients (JELIS): a randomised open-label, blinded endpoint analysis显示文摘Mitsuhiro Yokoyama Hideki Origasa Masunori Matsuzaki Yuji Matsuzawa Yasushi Saito Yuichi Ishikawa Shinichi Oikawa Jun Sasaki Hitoshi Hishida Hiroshige Itakura Toru Kita Akira Kitabatake Noriaki Nakaya Toshiie Sakata Kazuyuki Shimada Kunio Shirato 2007The Lancet2007,,9567:2
8Stereotactic Body Radiotherapy (SBRT) for Operable Stage I Non–Small-Cell Lung Cancer: Can SBRT Be Comparable to Surgery?显示文摘Hiroshi Onishi Hiroki Shirato Yasushi Nagata Masahiro Hiraoka Masaharu Fujino Kotaro Gomi Katsuyuki Karasawa Kazushige Hayakawa Yuzuru Niibe Yoshihiro Takai Tomoki Kimura Atsuya Takeda Atsushi Ouchi Masato Hareyama Masaki Kokubo Takuyo Kozuka Takuro Arimo 2011International Journal of Radiation Oncology, Biology, Physics2011,,5:2
9Changes in intensity of wind erosion at different stages of degradation development in grasslands of Inner Mongolia, China显示文摘F.-R. Li L.-F. Kang H. Zhang L.-Y. Zhao Y. Shirato I. Taniyama 2005Journal of Arid Environments2005,,4:2
10Hypofractionated stereotacticradiotherapy ( HypoFXSRT) for stage I non-small cell lung cancer;updated results of 257 patients in a Japanese multi -institutionalstudy显示文摘Onishi H Shirato H Nagata Y 2007J Thorac Oncol2007,2,13:1
11Stereotactic radiosurgery pluswhole - brain radiation therapy vs stereotactic radiosurgery alonefor treatment of brain metastases : a randomized controlled trial显示文摘Aoyama H Shirato H Tago M 2006J Am Med Assoc2006,295,:1
12Precise and real-time measurement of 3D tumor motion in lung due to breathing and heartbeat, measured during radiotherapy显示文摘Seppenwoolde Y Shirato H Kitamura K 2002Int J Radiat Oncol Biol Phys2002,53,4:1
13Genetic and antigenic diversity among noroviruses 显示文摘Hansman GS Natori K Shirato - Horikoshi H 2006J Gen Virol2006,87,4:1
14Impact of respiratory movement on the computed tomographic images of small lung tumors in three-dimensional (3D) radiotherapy显示文摘SHIMIZU S SHIRATO H KAGEI K 2000Int J Radiat Oncol Biol Phys2000,46,5:1
15Field Observation of the Full-Scale Wind-Induced Cable Vibration显示文摘MATSUMOTO M SHIRATO H YAGI T 2003Journal of Wind Engineering and Industrial Aerodynamics2003,91,1:1
16Stereotatic hypofrac-donated high dose irradiation for stage I non - small cell lungcancer:clinical outcomes in 245 subjects in a Japanese mul-tiinstitutional study显示文摘Onishi M Araki T Shirato H 2004Cancer2004,10,1:1
17Norovirus and histo-blood group antigens显示文摘Shirato H 2011Jpn J Infect Dis2011,64,2:1
18Precise and real -time measurement of 3D tumour motion in lung due to breathing and heart beat, measured during radiotherapy 显示文摘Seppenwoolde Y Shirato H Kitamura K 2002Int J Radiat Oncol Biol Phys2002,53,45:1
19Impact of re- spiratory movement in the computed tomographic images of small lung tumors in three- dimensional ( 3D ) radiotherapy 显示文摘SHIMIZU S S SHIRATO H KAGEI K 2000Int J Radiat Oncol Biol Phys2000,46,5:1
20Precise and real time measurement of 3D tumor motion in lung due to breathing and heartbeat, measured during radiotherapy 显示文摘SEPPENWOOLDE Y SHIRATO H KITAMURA K 2002Int J Radiat Oncol Biol Phys2002,53,4:1
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