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3757篇 您的检索式:作者名="Weiner"
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1Size-symmetric competition in a shade-tolerant invasive plant显示文摘对拥挤的植物回答在轻费力的种类的看台广泛地被调查了,但是阴影容忍的种类可以不同地反应。在现在的学习,我们在 Alternanthera philoxeroides 的死亡,尺寸不平等,和生物资源分配上调查了密度的效果,阴影容忍的侵略的种。A 的茎碎片。philoxeroides 在低或高的密度被种(6 对 24 每壶种) 不到三个轻层次(10% , 34% ,并且百分之百完整的阳光) 。在 8 个星期以后,幸存是 31% 在有更高起始的密度的壶更低。高密度和低轻层次实质地减少了植物尺寸。吝啬的植物生物资源在高密度、低光的壶从 0.23g 到 4.41g 在低密度并且热点壶。在幸存者的尺寸不平等上没有密度或轻水平的强壮或重要的效果。大多数在响应光的分配和形态学的变化铺平并且拥挤由于植物尺寸和 allometric 生长,与真粘性的小证据。射击分配有小却重要的增加,在最佳的分配理论预言的方向,在低轻层次。我们的结果证明强烈竞争不必是尺寸不对称,并且建议到低轻层次的忍耐在 phenotypic 包含减小粘性。侵略 A 的回答。到拥挤的 philoxeroides 可以是侵略植物在建立是色泽的密切相关的个人的稠密的看台的成功的一个例子容忍,合作,并且与低粘性跟随一条相对固定的 allometric 轨道。Xiao-Yun PAN Jacob WEINER Bo LI 2013Journal of Systematics and Evolution2013,51,3:5
2Endoscopic and non-endoscopic approaches for the management of radiation-induced rectal bleeding显示文摘Pelvic radiation is a commonly utilized treatment for malignancy of the genitourinary and lower gastrointestinal tract. Radiation proctitis and the resultant clinical picture varies from asymptomatic to potentially life threatening. Similarly, treatment options also vary greatly, from medical therapy to surgical intervention. Commonly utilized medical therapy includes sucralfate enemas, antibiotics, 5-aminosalicylic acid derivatives, probiotics, antioxidants, short-chain fatty acids, formalin instillation and fractionated hyperbaric oxygen. More invasive treatments include endoscopic-based, focally ablative interventions such as dilation, heater and bipolar cautery, neodymium/yttrium aluminum garnet argon laser, radiofrequency ablation or argon plasma coagulation. Despite its relatively common frequency, there is a dearth of existing literature reporting headto-head comparisons of the various treatment options via a randomized controlled approach. The purpose of our review was to present the reader a consolidation of the existing evidence-based literature with the goal of highlighting the comparative effectiveness and risks of the various treatment approaches. Finally, we outline a pragmatic approach to the treatment of radiation proctitis. In light of the lack of randomized data, our goal is to pursue as least invasive an approach as possible, with escalation of care tailored to the severity of the patient's symptoms. For those cases that are clinicallyasymptomatic or only mildly symptomatic, observation or medical management can be considered. Once a patient fails such management or symptoms become more severe, invasive procedures such as endoscopically based focal ablation or surgical intervention can be considered. Although not all recommendations are supported by level I evidence, reported case series and single-institutional studies in the literature suggest that successful treatment with cessation of symptoms can be obtained in the majority of cases.Joseph Paul Weiner Andrew Thomas Wong David Schwartz Manuel Martinez Ayse Aytaman David Schreiber 2016World Journal of Gastroenterology2016,22,31:5
3肝破裂的外科治疗显示文摘肝脏创伤外科的历史起源于1870年,由Viktor第1次成功地进行了肝脏枪伤的外科手术。但是直到20世纪60年代人们才对肝脏外科和出血性休克的病理生理有了进一步的理论认识。尽管外科技术和理论有了很大的进展,实际上肝脏破裂的外科治疗问题仍然是个难题。本文回顾性分析已有资料的手术方式、发生率和死亡率,列出各种手术方式的优点和缺点,并和国际上同类文献比较,分析他们之间差异的原因,以此来探讨肝破裂治疗的新路。F.Safi Sandra Weiner B.Poch A.Schwarz H.-G.Beger 张林 2000德国医学2000,17,2:5
4Hypothetical model of dynamic biomarkers of the Alzheimer’s pathological cascade显示文摘Clifford R Jack David S Knopman William J Jagust Leslie M Shaw Paul S Aisen Michael W Weiner Ronald C Petersen John Q Trojanowski 2010Lancet Neurology2010,,1:4
5Microwave photonics connected with microresonator frequency combs显示文摘Microresonator 频率梳子(微梳子) 很为微波 photonic 应用正在答应同样极端协议的宽带来源。相反地,微波 photonic 技术也在 microcombs 的学习强烈地被采用揭示并且控制梳子形成动力学。在这份报纸,我们考察了与 microcombs 被连接的微波 photonic 技术和应用。基于 microcomb 的微波 photonics 的未来研究方向也被讨论。Xiaoxiao XUE Andrew M. WEINER 2016Frontiers of Optoelectronics2016,9,2:4
6Analysis of a Successful Immune Response against Hepatitis C Virus显示文摘Stewart Cooper Ann L Erickson Erin J Adams Joe Kansopon Amy J Weiner David Y Chien Michael Houghton Peter Parham Christopher M Walker 1999Immunity1999,,4:3
7考古学、考古科技和整合的考古学显示文摘采用各种科技方法已经成为考古研究中最活跃、最具突破性和成果最为丰硕的方面。科技考古又被视为学科交叉或多学科探索的领域,可以超越传统及单学科方法的局限,从不同物质遗存、特别是隐性材料来提炼各种信息。科技手段的应用以及这种学科交叉对考古研究的重要性已经成为学界的共识。但是,这种学科交叉也存在亟需改善的较大问题,即科技手段的应用与考古学的问题意识及科学阐释并没有很好结合起来,使得科技测试与考古分析成了缺乏互补和整合的两张皮。本文很好地讨论了考古学与科技手段的关系,提出了建立一种整合的考古学的重要性。虽然涉及的学科交叉越来越广,但考古学探究却因各分支学科和信息缺乏整合而受损。他呼吁,考古学家要了解科技方法的潜力,而科技专家也要知道考古学家探索的问题,合力整合显性和隐形材料的信息,为解决挑战性的课题提供比较可靠的结论。史蒂夫·韦纳(Steve Weiner) 吴双 陈淳 2015南方文物2015,0,3:3
8Rituximab: Mechanism of Action显示文摘George J. Weiner 2010Seminars in Hematology2010,,2:3
9Size-asymmetric root competition in deep,nutrient-poor soil显示文摘Aims There is much evidence that plant competition below ground is size symmetric,i.e.that competing plants share contested resources in proportion to their sizes.Several researchers have hypothesized that a patchy distribution of soil nutrients could result in size-asymmetric root competition.We tested this hypothesis.Methods In a greenhouse experiment,Triticum aestivum(wheat)individ-uals of different initial sizes were grown alone or with below-ground competition from one neighbour,in 1 m tall,narrow containers in a nitrogen-poor field soil with(i)no added nitro-gen,(ii)nitrogen fertilizer mixed into the upper 50 cm,and(iii)the same amount of fertilizer mixed into a 20-30 cm deep layer.We measured total leaf length throughout the experiment,and above-ground biomass and nitrogen concentration at harvest.We also measured root depth and frequency over time in a subset of containers.Important Findings Competing plants were half the size of non-competing plants,meaning that root competition was very strong.Root competition was size-asym-metric to some degree in all soil treatments.Neighbours larger than the target plant showed a greater per-unit-size effect on target growth than neighbours smaller than the target.Size variation increased over time for competing individuals,but decreased for non-competing pairs.Contrary to expectations,the presence of a high-nutrient patch reduced the strength and size asymmetry of competition temporarily.Size asym-metry in poor,deep soils may result from directionality in resource interception as roots compete for limited nutrients by growing deeper into soil layers that have not yet been exploited.Root competition can be size asymmetric,but not to the same degree as competition for light.Camilla Ruø Rasmussen Anne Nygaard Weisbach Kristian Thorup-Kristensen Jacob Weiner 2019Journal of Plant Ecology2019,12,1:2
10B7-1 and B7-2 costimulatory molecules activate differentially the Th1/Th2 developmental pathways: Application to autoimmune disease therapy显示文摘Vijay K Kuchroo Mercy Prabhu Das Julia A Brown Ann M Ranger Scott S Zamvil Raymond A Sobel Howard L Weiner Nasrin Nabavi Laurie H Glimcher 1995Cell1995,,5:2
11Intrapersonal and Interpersonal Theories of Motivation from an Attributional Perspective显示文摘Bernard Weiner 2000Educational Psychology Review2000,,1:2
12Persistent hepatitis C virus infection in a chimpanzee is associated with emergence of a cytotoxic T lymphocyte escape variant 显示文摘Weiner A Erickson AL Kansopon J 1995Proc Natl Acad Sci USA1995,92,7:2
13Randomized, Placebo-Controlled, Clinical Trial of Donepezil in Vascular Dementia: Differential Effects by Hippocampal Size显示文摘Gustavo C. Román Stephen Salloway Sandra E. Black Donald R. Royall Charles DeCarli Michael W. Weiner Margaret Moline Dinesh Kumar Rachel Schindler Holly Posner 2010Stroke2010,,6:2
14Species traits and shoot-root biomass allocation in 20 dry-grassland species显示文摘Aims A plant has a limited amount of resources at any time and it allo-cates them to different structures.in spite of the large number of previous studies on allocation patterns within single species,knowledge of general patterns in species allocation is still very limited.This is because each study was done in different condi-tions using different methodology,making generalization dif-ficult.We investigate intraspecific above-versus below-ground biomass allocation among individuals across a spectrum of dry-grassland plant species at two different developmental stages and ask whether allocation is age-and species specific,and whether differences among species can be explained by their life-history traits and phylogeny.Methods We collected data on above-and below-ground biomass of seedlings and adult plants of 20 species from a common garden experiment.We analysed data on shoot-root biomass allocation allometrically and studied the relationship between the allometric exponents(slopes on log-log scale),species life-history traits and phylogenetic distances.Important Findings We found isometric as well as allometric patterns of biomass alloca-tion in the studied species.Seedlings and adult individuals of more than half of the species differed in their above-versus below-ground biomass allometric exponents.Seedlings and adult individuals of the remaining species differed in their allometric coefficients(inter-cepts).Annual species generally allocated proportionally more to above-than below-ground biomass as seedlings than as adults,whereas perennial species showed the opposite pattern.Plant life-history traits,such as plant life span,age of first flowering,month in which the species begin flowering and specific leaf area were much more important in explaining differences in shoot-root allometry among species than were phylogenetic relationships.This suggests that allocation patterns vary greatly among closely related species but can be predicted based on species life-history traits.Iveta Husáková Jacob Weiner Zuzana Münzbergová 2018Journal of Plant Ecology2018,11,2:2
15Transbronchial needle aspiration guidance with CT fluoroscopy显示文摘White C S Weiner E A Patel P 2000Chest2000,118,4:1
16Empowerment, Marginalization, and 'Community-integrated' GIS 显示文摘Harris T Weiner D 1998Cartography and Geographic Information Systems1998,25,2:1
17Application of ductus venosus Doppler velocimetry for the detection of fetal aneuploidy in the first trimester of pregnancy显示文摘Murta CG Moron AF Avila MA Weiner CP 2002Fetal Diagn Ther2002,17,:1
18Oral tolerance to myelin basic protein and natrural recovery from experimental autoimmune encephalomyelitis are associated with downregulation of intlammatory cytokines and differential upregulation of transforming growth factor-β, Interleukin-4, and prostaglandin E expression in the brain显示文摘Khoury SJ Hancock MW Weiner HL 1992J Exp Med1992,176,:1
19Control of aragonite of calci te polymorphism by mollusk shell macromolecules显示文摘 ALBECK S WEINER S 1996Science1996,271,5245:1
20An overview of monoclonal antibody therapy of cancer显示文摘 1999Semin Oncol1999,26,412:1
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