维普中文期刊产品整合服务
3631篇 您的检索式:作者名="BAKER D"
    题名 作者 年代 出处 被引量
1国际胃袖状切除专家共识:基于>12000手术病例的最佳操作指南显示文摘腹腔镜胃袖状切除术(1aparoscopic sleeve gastrectomy,LSG)系相对较新的减重手术方式。因其操作相对简单、治疗肥胖合并疾病及减重效果明显,逐步得以广泛接受。目前美国代谢与减重手术协会将其推荐为肥胖症治疗的单独标准术式。2011年3月25~26日,苏远涛 徐安安 朱江帆 Diaz AA Arvidsson D Baker RS Basso N Bellanger D Boza C El Mourad H France M Gagner M Galvao-Neto M Higa KD Himpens J Hutchinson CM Jacobs M Jorgensen JO Jossart G Lakdawala M Nguyen NT Nocca D Prager G Pomp A Ramos AC Rosenthal RJ Shah S Vix M Wittgrove A Zundel N 2013中国微创外科杂志2013,13,9:12
2Silvicultural alternatives to conventional even-aged forest man-agement-what limits global adoption?显示文摘Background: The development of forestry as a scientific and management discipline over the last two centuries has mainly emphasized intensive management operations focused on increased commodity production, mostly wood. This 'conventional' forest management approach has typically favored production of even-aged, single-species stands. While alternative management regimes have generally received less attention, this has been changing over the last three decades, especially in countries with developed economies. Reasons for this change include a combination of new information and concerns about the ecological consequences of intensive forestry practices and a willingness on the part of many forest owners and society to embrace a wider set of management objectives. Alternative silvicultural approaches are characterized by a set of fundamental principles, including avoidance of clearcutting, an emphasis on structural diversity and small-scale variability, deployment of mixed species with natural regeneration,and avoidance of intensive site-preparation methods.Methods: Our compilation of the authors' experiences and perspectives from various parts of the world aims to initiate a larger discussion concerning the constraints to and the potential of adopting alternative silvicultural practices.Results: The results suggest that a wider adoption of alternative silvicultural practices is currently hindered by a suite of ecological, economic, logistical, informational, cultural, and historical constraints. Individual contexts display their own unique combinations and relative significance of these constraints, and accordingly, targeted efforts, such as regulations and incentives, may help to overcome specific challenges.Conclusions: In a broader context, we propose that less emphases on strict applications of principles and on stand structures might provide additional flexibility and facilitate the adoption of alternative silvicultural regimes in a broader set of circumstances. At the same time, the acceptance of alternative silvicultural systems as the 'preferred or default mode of management' wil necessitate and benefit from the continued development of the scientific basis and valuation of a variety of ecosystem goods and services. This publication is aimed to further the discussion in this context.Klaus J Puettmann Scott McG Wilson Susan C Baker Pablo J Donoso Lars Dr?ssler Girma Amente Brian D Harvey Thomas Knoke Yuanchang Lu Susanna Nocentini Francis E Putz Toshiya Yoshida Jürgen Bauhus 2015Forest Ecosystems2015,2,2:4
3Assessment of the Progress of the Back-Pain Patient显示文摘R MILLION W HALL K HAAVIK NILSEN R D BAKER M I V JAYSON 1982Spine1982,,3:2
4Effect of Vanadium Microalloying on the HAZ Microstructure and Properties of Low Carbon Steels显示文摘Four Steels,C-Mn-0.05V,C-Mn-0.11V,C-Mn-0.03Nb and C-Mn were subjected to heat treatment to simulate the microstructure of a coarse grained heat affected zone (CGHAZ) and an intercritically reheated coarse grained heat affected zone (ICCGHAZ).This involved reheating to 1350°C,rapid cooling (Δt 8/5 =24s) to room temperature and then reheating to either 750°C or 800°C.The toughness of the HAZs was assessed using both Charpy and CTOD tests.Microstructural features were characterised by optical,scanning` and transmission electron microscopy.Fractographic examinations of the Charpy and CTOD specimens were carried out to understand the micromechanism of fracture under different microstructural and test conditions.The CGHAZ toughness was similar for the steels except that Steel C-Mn-0.05V had a slightly lower ITT compared to the others.The toughness deteriorated in the ICCGHAZ for all the steels,again Steel C-Mn-0.05V had a superior toughness compared to the other three steels in both ICCGHAZ conditions.Raising the level of vanadium to 0.11% caused a decrease in ICCGHAZ toughness.Steel C-Mn-Nb exhibited a greater degradation of impact toughness after the intercritical cycles.The presence of M-A constituents was the dominant factor in determining the toughness of the ICCGHAZs.The size and area fraction of the M-A constituents were the smallest in Steel C-Mn-0.05V.Increasing vanadium level to 0.11% resulted in a greater area fraction of the M-A constituents,larger average and maximum sizes of M-A particles,and significantly more fields containing the M-A.The addition of 0.031% Nb produced the largest M-A particles and the greatest area fraction for the steels tested.Milbourn D Baker T N 2011Journal of Iron and Steel Research(International)2011,18,S1:2
5Subtype-selective antagonists of lysophosphatidic acid receptors inhibit platelet activation triggered by the lipid core of atherosclerotic plaques显示文摘ROTHER E BRANDL R BAKER D L 2003Circulation2003,108,6:2
6The natural history of spondylolysis and spondylolisthesis 显示文摘Fredrichson Be Baker D McHolick WJ 1984J Bone Joint Surg(Br)1984,66,5:1
7Two-step immobilized enzyme conversion of cephalospofin C to 7-aminocephalosporanic acid显示文摘Conlon H D Baqai J Baker K 1995Biotechnol Bioeng1995,46,:1
8Lidar-measured winds from space: a key component for weather and climate prediction 显示文摘BAKER W E EMMITT G D ROBERTSON F 1995Bulletin of the American Meteorological Society1995,76,6:1
9Methodology for assessing zinc bioavailability: efficacy estimates for zinc-methionine, zinc sulfate, and zinc oxide显示文摘Wedekind K J Hortin A E Baker D H 1992Journal of Animal Science1992,70,1:1
10Comparison of reaction mechanism of epoxy resins undergoing thermal and microwave cure from insitu measurements of microwave dieltric properxties and infrared spectroscopy显示文摘Marand E Baker K R Graybeal J D 1992Macromolecules1992,25,8:1
11Performance of growing and finishing cattle supplemented with a slow-release urea product and urea显示文摘TEDESCHI L O BAKER M J KETCHEN D J 2002Canadian Journal of Animal Science2002,82,:1
12Pseudorapidity and centrality dependence of the collective flow of charged particles in Au + Au colli- sions at √SNN = 130 GeV显示文摘Back B B Baker M D Barton D S 2002Phys Rev Lett2002,89,22:1
13Mycoplasma infections in growing cattle 显示文摘NICHOLAS R A J BAKER S AYLING R D 2000Cattle Practice2000,,8:1
141α-hydroxylat-edchole-calciferol compounds act additively with microbial phytaseto improve phosphorus,zinc andmanganese utilization inchicks fed soy-based diets显示文摘Biehl R R Baker D H Deluca H F 1995Journal of Nutrition1995,125,9:1
15Multiple mechanisms link-ed to platelet activation result in lysophosphatidic acid and sphingosine1-phosphate generation in blood显示文摘Sano T Baker D Virag T 2002J Biol Chem2002,,:1
16A review of soluble microbial products (SMP) in wastewater treatment systems 显示文摘Baker D J Stuckey D C 1999Water Research1999,33,14:1
17Calibration Precision of Capacitance and Neutron Soil Water Content Gauges in Arid Soils显示文摘WAUGH W J BAKER D A KASTENS M K 1996Arid Soil Research and Rehabilitation1996,10,:1
18High-resolution records of soil humification and paleoclimate change from variations in speleothem luminescence excitation and emission wavelengths 显示文摘Baker A Genty D Smart P 1998Geology1998,26,10:1
19Protein Structure Prediction and Structural Genomics显示文摘Baker D Sali A 2001Science2001,294,:1
20Inhibition of epidermal growth factor receptor-associated tyrosine phosphorylation in human carcinomas with CP-358774:dynamics of receptor inhibition in situ and antitumor effects in athymic mice显示文摘Pollack V A Savage D M Baker D A 1999Pharmacol Exp Ther1999,291,2:1
返回顶部 每页显示:
共182页 首页 上一页 第1页 下一页 末页 /182 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费