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168篇 您的检索式:作者名="James Allen"
    题名 作者 年代 出处 被引量
1土壤增氧方式对其氮素转化和水稻氮素利用及产量的影响显示文摘以3种不同生态型水稻品种中浙优1号(水稻)、IR45765-3B(深水稻)和中旱221(旱稻)为材料,比较研究了不同增氧方式(T1-增施过氧化钙、T2-微纳气泡水增氧灌溉、T3-表土湿润灌溉和CK-淹水对照)下稻田土壤氮素转化和水稻氮素吸收利用特性。结果表明:1)增氧处理明显改善土壤氧化还原状况,3种增氧方式下土壤氧化还原电位均高于CK。稻田增氧促进土壤氮素硝化,在分蘖期和齐穗期T1、T2和T3的土壤硝化强度和脲酶活性均显著高于CK,反硝化强度显著低于CK。2)不同增氧处理对水稻氮素吸收的影响不同,在拔节期、齐穗期和完熟期3品种的植株氮素积累量均表现为T1、T2显著高于CK,而T3显著低于CK;在完熟期,T1处理下中浙优1号、IR45765-3B和中旱221植株氮素积累量分别较CK增加了21.2%、13.2%和17.0%,而T2处理下3品种的植株氮素积累量分别较CK增加了14.3%、6.9%和9.1%。3)与CK相比,T1和T2显著提高水稻籽粒产量和收获指数,氮素籽粒生产效率与CK无显著差异,而T3显著增加水稻氮素干物质生产效率和氮素籽粒生产效率。可见,施用过氧化钙和微纳气泡水增氧灌溉能有效改善稻田土壤氧化还原状况,不仅显著提高水稻产量,而且显著增强稻田氮的硝化而减少氮素损失,从而提高水稻氮素积累量和氮素收获指数。胡继杰 朱练峰 胡志华 钟楚 林育炯 张均华 曹小闯 Allen Bohr James 禹盛苗 金千瑜 2017农业工程学报2017,33,1:31
2增氧模式对水稻光合特性及产量的影响显示文摘【目的】研究不同增氧模式对水稻光合特性和物质生产的影响,并探讨适宜不同生态型水稻品种生长以及提高其产量的增氧模式,进一步明确稻田根部增氧对水稻生长的作用,为水稻好氧栽培提供参考和理论依据。【方法】以中浙优1号(水稻)、IR45765-3B(深水稻)和中旱221(旱稻)3种不同生态型水稻品种为材料,设置增施过氧化钙(T_1)、微纳气泡水灌溉(T_2)和表土湿润灌溉(T_3)等不同增氧模式以及淹水对照(CK),分别测定水稻叶片光合特性、干物质积累量和产量等指标。【结果】增施过氧化钙和微纳气泡水灌溉处理增加了3个水稻品种主要生育期的叶片SPAD值、叶面积指数、净光合速率、蒸腾速率、气孔导度和干物质量,水稻有效穗数和结实率显著高于对照;表土湿润灌溉处理下,3个品种的叶片SPAD值、叶面积指数、光合参数和干物质量下降,结实率显著低于对照,但提高了叶片水分利用率。完熟期,增施过氧化钙处理下,中浙优1号、IR45765-3B和中旱221稻谷产量分别较对照增加了22.38%、18.27%和18.17%;微纳气泡水灌溉处理下,3个品种稻谷产量分别较对照增加了13.89%、10.67%和8.85%;表土湿润灌溉处理下,产量分别比对照减少5.86%、8.19%和6.16%。【结论】增施过氧化钙和微纳气泡水灌溉有助于提高水稻叶片叶绿素含量、叶面积指数和光合作用能力,并显著增加水稻干物质积累和产量;而表土湿润灌溉处理下,水稻水分供应不足,叶片光合作用及产量均有所下降。胡继杰 朱练峰 钟楚 林育炯 张均华 曹小闯 禹盛苗 Allen Bohr JAMES 金千瑜 2017中国水稻科学2017,31,3:20
3Effects of salt stress on rice growth, development characteristics, and the regulating ways: A review显示文摘Rice(Oryza sativa L.) is highly susceptible to the rhizosphere salinity than other cereals.High sensitivity has been observed,mainly at vegetative and reproductive stages in rice.It is the duty of plant physiologists to comprehend the growth,development,and physiological processes of rice plants under stress.This paper includes the overview of rice growth and developmental processes influenced by salt stress and the regulation pathways involved in these processes.It also includes the promising salt tolerance strategies,i.e.,genetic modification techniques,agronomic practices to improve rice growth,yield,and role of phytohormones and their management,especially inhibition of ethylene biosynthesis by using inhibitors 1-methylcyclopropene(1-MCP).Rice cultivation may be a first choice for improvement of salt tolerance through plant growth regulators and improved cultivation techniques.This study will significantly improve the understanding toward low rice grain yield and poor rice resistance under salt stress and will also stream scientific knowledge for effective utilization of salt affected soils by using different regulating ways.Sajid Hussain ZHANG Jun-hua ZHONG Chu ZHU Lian-feng CAO Xiao-chuang YU Sheng-miao Allen Bohr James HU Ji-jie JIN Qian-yu 2017Journal of Integrative Agriculture2017,16,11:19
4溶解氧对稻田土壤氮素转化及水稻氮代谢影响研究进展显示文摘溶解氧(dissolved oxygen,DO)在稻田氮素循环和水稻生长发育中发挥了重要作用,深入研究溶解氧对稻田氮素转化和水稻氮代谢的影响,对减少稻田氮素流失和提高水稻氮素利用具有重要意义。近年来,研究已阐明了溶解氧对土壤固氮作用、氨化作用、硝化作用和反硝化作用等生物化学过程以及土壤微生物多样性的影响;大量研究也表明,溶解氧在水稻氮素吸收与利用中起到了关键作用。本文系统介绍了溶解氧浓度对微生物群落结构和活性的影响及其与稻田不同形态氮素间转化的关系,综述了水稻根系生长特性、氮素吸收和同化及相关氨基酸代谢对溶解氧浓度响应机理的最新研究进展,并针对现阶段稻田氧营养研究提出了水稻生产中存在的问题及研究展望。胡继杰 朱练峰 钟楚 张均华 曹小闯 禹盛苗 Allen Bohr James 金千瑜 2017生态学杂志2017,36,7:5
5Stereotactic body radiation therapy for management of spinal metastases in patients without spinal cord compression: a phase 1–2 trial显示文摘Xin Shelley Wang Laurence D Rhines Almon S Shiu James N Yang Ugur Selek Ibrahima Gning Ping Liu Pamela K Allen Syed S Azeem Paul D Brown Hadley J Sharp David C Weksberg Charles S Cleeland Eric L Chang 2012Lancet Oncology2012,,4:2
6Comparison of two modes of stress measurement: Daily hassles and uplifts versus major life events显示文摘Allen D. Kanner James C. Coyne Catherine Schaefer Richard S. Lazarus 1981Journal of Behavioral Medicine1981,,1:2
7ⅢA期非小细胞肺癌术后三维适形放疗与常规放疗的初步比较显示文摘目的回顾性比较ⅢA期非小细胞肺癌(NSCLC)术后三维适形放疗(3DCRT组)和常规放疗(CRT组)的近期疗效及放疗反应。方法对美国安德森癌症中心收治的114例ⅢA期NSCLC患者的术后放疗资料进行回顾性分析。CRT组63例,3DCRT组51例。CRT组放疗中位剂量为53.5 Gy分27次,3DCRT组的为52.8 Gy分26次,均在5~6周内完成。结果CRT、3DCRT组中位随访时间分别为28、13个月。两组近期放疗反应、局部控制率及无远处转移生存率等无差异。1、2年总生存率CRT组为80%、62%,3DCRT组为93%、70%。1、2年无瘤生存率CRT组为62%、44%,3DCRT组为58%、32%。两组死亡原因有统计学差异,CRT组有4例死于与心脏损伤有关的并发症,而3DCRT组则无。结论ⅢA期NSCLC术后三维适形放疗可取得与常规放疗类似的近期疗效而并不增加局部复发和远处转移的危险性,对心脏的损伤有降低趋势,对生存率影响则有待更长时间的随访结果。林原 LIAOZhong-xing ALLEN Pamela CHANG Joe COX James KOMAKI Ritsuko 2006中华放射肿瘤学杂志2006,15,4:2
8Diagnosis and Initial Management of Blunt Pancreatic Trauma: Guidelines From a Multiinstitutional Review显示文摘Edward L. Bradley Peter R. Young Michael C. Chang James E. Allen Christopher C. Baker Wayne Meredith Larry Reed Michael Thomason 1998Annals of Surgery1998,,6:2
9Ultrafiltration Versus Intravenous Diuretics for Patients Hospitalized for Acute Decompensated Heart Failure显示文摘Maria Rosa Costanzo Maya E. Guglin Mitchell T. Saltzberg Mariell L. Jessup Bradley A. Bart John R. Teerlink Brian E. Jaski James C. Fang Erika D. Feller Garrie J. Haas Allen S. Anderson Michael P. Schollmeyer Paul A. Sobotka 2007Journal of the American College of Cardiology2007,,6:2
10E-Finance: An Introduction显示文摘Franklin Allen James McAndrews Philip Strahan 2002Journal of Financial Services Research2002,,1:2
11microRNA-Directed Phasing during Trans -Acting siRNA Biogenesis in Plants显示文摘Edwards Allen Zhixin Xie Adam M. Gustafson James C. Carrington 2005Cell2005,,2:2
12Development and Validation of a Standardized Method for Contouring the Brachial Plexus: Preliminary Dosimetric Analysis Among Patients Treated With IMRT for Head-and-Neck Cancer显示文摘William H. Hall Michael Guiou Nancy Y. Lee Arthur Dublin Samir Narayan Srinivasan Vijayakumar James A. Purdy Allen M. Chen 2008International Journal of Radiation Oncology Biology Physics2008,,5:1
13The relationship between inflammatory bowel disease and socioeconomic variables显示文摘Charles N Bernstein Allen Kraut James F Blanchard Patricia Rawsthorne Nancy Yu Randy Walld 2001The American Journal of Gastroenterology2001,,7:1
14The Role of Coronary Artery Injury and Perfusion in the Development of Cardiac Contusion Secondary to Nonpenetrating Chest Trauma显示文摘ROBERT P. ALLEN A. JAMES LIEDTKE 1979The Journal of Trauma: Injury Infection and Critical Care1979,,3:1
15Concordance of the Toxicity of Pharmaceuticals in Humans and in Animals显示文摘Harry Olson Graham Betton Denise Robinson Karluss Thomas Alastair Monro Gerald Kolaja Patrick Lilly James Sanders Glenn Sipes William Bracken Michael Dorato Koen Van Deun Peter Smith Bruce Berger Allen Heller 2000Regulatory Toxicology and Pharmacology2000,,1:1
16Acute Heart Failure Syndromes: Emergency Department Presentation, Treatment, and Disposition: Current Approaches and Future Aims: A Scientific Statement From the American Heart Association显示文摘Neal L. Weintraub Sean P. Collins Peter S. Pang Phillip D. Levy Allen S. Anderson Cynthia Arslanian-Engoren W. Brian Gibler James K. McCord Mark B. Parshall Gary S. Francis Mihai Gheorghiade 2010Circulation2010,,:1
17Forced regressions in a sequence stratigraphic framework: concepts, examples, and exploration significance 显示文摘Posamentier H W Allen G P James D P 1992AAPG1992,76,11:1
18Enzymatic properties of the ferredoxin-dependent nitrite reductase from Chlamydomonas reinhardtii. Evidence for hydroxylamine as a late intermediate in ammonia production显示文摘Masakazu Hirasawa Jatindra N. Tripathy Frederik Sommer Ramasamy Somasundaram Jung-Sung Chung Matthew Nestander Mahima Kruthiventi Masoud Zabet-Moghaddam Michael K. Johnson Sabeeha S. Merchant James P. Allen David B. Knaff 2010Photosynthesis Research2010,,2:1
19Epidural and Intrathecal Analgesia Is Effective in Treating Refractory Cancer Pain显示文摘Allen W. Burton Arun Rajagopal Hemant N. Shah Tito Mendoza Charles Cleeland Samuel J. Hassenbusch James F. Arens 2004Pain Medicine2004,,:1
20Long-term survival after traumatic brain injury:a population-based analysis显示文摘Allen WB Cynthia L James F 2004Neurorehabilitation2004,19,:1
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