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487篇 您的检索式:作者名="Belcher"
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1浙西北天然次生林群落物种多样性研究显示文摘对浙西北地区天然次生林群落植物物种多样性特征进行了研究,测定了群落植物生长型构成以及各层次植物物种的重要值,采用多种测度方法计算了群落各层次植物物种的丰富度指数、均匀度指数和多样性指数。结果表明:(1)浙西北地区天然次生林群落各层次优势种比较明显,乔木树种以青冈为主,灌木树种以柃木和木占优势,草本植物则以箬竹为主;(2)该地区天然次生林群落植物物种比较丰富,乔木树种种数最多,草本植物稀少;就各层次而言,草本层物种数最多,乔木层和灌木层比较接近,各层次的均匀度指数的趋势是灌木层最高,草本层最低,乔木层居中;以多种指标计算各层次物种多样性指数结果均显示,灌木层多样性指数最高,草本层最低,尽管草本层具有最高的丰富度;(3)封育时间长、人为干扰轻的地区具有较高的物种多样性指标以及数量指标,有利于生物多样性的保护。周本智 傅懋毅 李正才 谢锦忠 Manuel Ruiz Perez Brian Belcher 杨校生 吴明 2005林业科学研究2005,18,4:31
2激光虹膜切除术显示文摘虹膜周边切除可有效地缓解瞳孔阻滞,已成为闭角型青光眼主要术式之一。应用激光技术切除虹膜,可避免切开眼球引起的一系列并发症。本文详细地叙述激光虹膜切除术,并介绍了各种激光,如氩激光、Nd:YAG、氩激光-Md:YAG联合、二极管、微微秒级Nd:YLF/Nd:YAG等虹膜切除的方法和优缺点。C.Davis Belcher JoelS.Schuman 李志辉 1993国外医学(眼科学分册)1993,17,5:7
3It is safe to use transdermal glyceryl trinitrate to lower blood pressure in patients with acute ischaemic stroke with carotid stenosis显示文摘Background There is concern that blood pressure(BP)lowering in acute stroke may compromise cerebral perfusion and worsen outcome in the presence of carotid stenosis.We assessed the effect of glyceryl trinitrate(GTN)in patients with carotid stenosis using data from the Efficacy of Nitric Oxide in Stroke(ENOS)Trial.Methods ENOS randomised 4011 patients with acute stroke and raised systolic BP(140-220 mm Hg)to transdermal GTN or no GTN within 48 hours of onset.Those on prestroke antihypertensives were also randomised to stop or continue their medication for 7 days.The primary outcome was the modified Rankin Scale(mRS)at day 90.Ipsilateral carotid stenosis was split:<30%;30-<50%;50-<70%;≥70%.Data are ORs with 95%CIs adjusted for baseline prognostic factors.results 2023(60.5%)ischaemic stroke participants had carotid imaging.As compared with<30%,≥70%ipsilateral stenosis was associated with an unfavourable shift in mRS(worse outcome)at 90 days(OR 1.88,95%CI 1.44 to 2.44,p<0.001).Those with≥70%stenosis who received GTN versus no GTN had a favourable shift in mRS(OR 0.56,95%CI 0.34 to 0.93,p=0.024).In those with 50-<70%stenosis,continuing versus stopping prestroke antihypertensives was associated with worse disability,mood,quality of life and cognition at 90 days.Clinical outcomes did not differ across bilateral stenosis groups.Conclusions Following ischaemic stroke,severe ipsilateral carotid stenosis is associated with worse functional outcome at 90 days.GTN appears safe in ipsilateral or bilateral carotid stenosis,and might improve outcome in severe ipsilateral carotid stenosis.Jason P Appleton Lisa J Woodhouse Andrew Belcher Daniel Bereczki Eivind Berge Valeria Caso Hui Meng Chang Hanne K Christensen Ronan Collins John Gommans Ann C Laska George Ntaios Serefnur Ozturk Gillian M Sare Szabolcs Szatmari Yongjun Wang Joanna M Wardlaw Nikola Sprigg Philip M Bath for the ENOS investigators 2019Stroke & Vascular Neurology2019,4,1:6
4广西田林县麻竹产业与农户收入变化显示文摘竹产业在地方经济发展和生态旅游中占有重要的地位。特别是对一些贫困地区而言,竹产业已成为许多地区脱贫致富的主要途径。退耕还林、荒山造林和异地安置脱贫等工程为竹产业的发展提供了机遇,同时林业改革政策的推动也给竹产业的发展造成了一定的外部环境。田林县麻竹林资源丰富,麻竹业发展潜力大,特别是麻竹笋加工业发展较快,是当地的支柱产业之一。主要论述从1995-2005年,三个五年期间,田林县农民收入的变化及麻竹产业产值增加的变化。同时随机挑选了85户农户进行收入调查,分析麻竹产业收入占总收入中的变化及麻竹产业对不同类型农户的影响程度。吴丹丹 杨校生 Brian Belcher 2008竹子研究汇刊2008,27,1:3
5全球促进燃料乙醇发展的21世纪高新技术展望显示文摘重点介绍了目前和未来将更进一步地增加收率和显著降低生产成本的乙醇加工先进技术(例如,通过酶和酵母菌)。傅其军 苏毅 Alan Belcher 2005广西轻工业2005,21,5:3
6Estrogenic actions in the brain: estrogen, phytoestrogen, and rapid intracellular signaling mechanisms显示文摘 Zsarnovszky A 2001J Pharmac Experi Thera2001,299,2:1
7J High resolution processing of hybrid strip-map/spotlight mode SAR显示文摘Belcher D P Baker C 0,,06:1
8First steps in harness ing the potential of biomineralization as a route to new high-performance compo site materials显示文摘 HANSMA P K STUCKY G D 1998Acta mater1998,46,3:1
9Struc-tural and microstructural characterization of the growth lines and prismatic microarchitecture in red abalone shell and the microstructures of abalone 'flat pearls”显示文摘Su Xiaowei Belcher A M Zaremba C M 0,,07:1
10First steps in harnessing the potential of biomineralization as a route to new high-performance composite materials 显示文摘Belcher A M Hansma P K Stucky G D 1998Acta Mater1998,46,:1
11Bisphenol A is released from polycarbonate drinking bottles and mimics the neurotoxic actions of estrogen in developing cerebellar neurons 显示文摘Le H H Carlson E M Chua J P Belcher S M 2008Toxicology Letters2008,176,2:1
12Increased physical activity and reduced adiposity in overweight Hispanic adolescents显示文摘BYRD-WILLIAMS C E BELCHER B R SPRUIJT-METZ D 2010Med Sci Sports Exe2010,42,3:1
13Flat pearls from biofabrication of ofganized composite on inorganit substrates 显示文摘Fritz M Belcher A M Radmacher M 1994Nature1994,371,:1
14Industrial packaging developments for the global meat market显示文摘BELCHER J N 2006Meat Science2006,74,1:1
15Plant competition in rela- tion to neighbor biomass : an intercontinental study with POA pratensis 显示文摘Reader R J Wilson S D Belcher J W 1994Ecology1994,75,6:1
16Neutrophil/ lymphocyte ratio and its association with survival after complete resection in non-small cell lung cancer显示文摘Sarraf KM Belcher E Raevsky E 2009J Thoac Cardiovas Surg2009,137,2:1
17One Thousand Consecutive Pancreaticoduodenectomies显示文摘John L. Cameron Taylor S. Riall JoAnn Coleman Kenneth A. Belcher 2006Annals of Surgery2006,,1:1
18Chapel Hill bisphenol A expert panel consensus statement:integration of mechanisms,effects in animals and potential to impact human health at current levels of exposure显示文摘vom Saal FS Akingbemi BT Belcher SM 2007Reprod Toxicol2007,24,2:1
19Serial measurement of galectin-3 in patients with chronic heart failure: results from the ProBNP Outpatient Tailored Chronic Heart Failure Therapy (PROTECT) study显示文摘Shweta R. Motiwala Jackie Szymonifka Arianna Belcher Rory B. Weiner Aaron L. Baggish Patrick Sluss Hanna K. Gaggin Anju Bhardwaj James L. Januzzi 2013European Journal of Heart Failure2013,,10:1
20Candesartan cilexetil:safety and tolerability in healthy volunteers and patients with hypertension显示文摘Belcher G Hübner R George M 1997J Hum Hypertens1997,11,2:1
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