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597篇 您的检索式:作者名="PLANK J"
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1Preoperative immunonutrition in patients undergoing liver resection:A prospective randomized trial显示文摘BACKGROUND Preoperative supplementation with immunonutrients, including arginine and n-3 fatty acids, has been shown in a number of systematic reviews to reduce infectious complications in patients who have undergone gastrointestinal surgery. Limited information, however, is available on the benefits of nutritional supplementation enriched with arginine and n-3 fatty acids in patients undergoing liver resection.AIM To evaluate the effects of preoperative nutritional supplementation enriched with arginine and n-3 fatty acids on inflammatory and immunologic markers and clinical outcome in patients undergoing liver resection.METHODS Thirty-four patients undergoing liver resection were randomized to either five days of preoperative Impact? [1020 kcal/d, immunonutrition(IMN) group], or standard care [no supplementation, standard care(STD) group]. Nutritional status was measured at study entry by subjective global assessment(SGA).Functional assessments(grip strength, fatigue and performance status) were carried out at study entry, on the day prior to surgery, and on postoperative day(POD) 7 and 30. Inflammatory and immune markers were measured at study entry, on the day prior to surgery, and POD 1, 3, 5, 7, 10 and 30. Postoperative complications were recorded prospectively until POD30.RESULTS A total of 32 patients(17 IMN and 15 STD) were analysed. All except four patients were SGA class A. The plasma ratio of(eicosapentaenoic acid plus docosahexaenoic acid) to arachidonic acid was higher in IMN patients on the day prior to surgery and POD 1, 3, 5 and 7(P < 0.05). Plasma interleukin(IL)-6 concentrations were elevated in the IMN group(P = 0.017 for POD7). No treatment effect was detected for functional measures, immune response(white cell count and total lymphocytes) or markers of inflammation(C-reactive protein,tumour necrosis factor-α, IL-8, IL-10). There were 10 patients with infectious complications in the IMN group and 4 in the STD group(P = 0.087). Median hospital stay was 9(range 4–49) d in the IMN group and 8(3-34) d in the STD group(P = 0.476).CONCLUSION In well-nourished patients undergoing elective liver resection, this study failed to show any benefit of preoperative immunonutrition.Kylie Russell Han-Guang Zhang Lyn K GillANDers Adam SJR Bartlett Helena L Fisk Philip C Calder Peter J Swan Lindsay D Plank 2019World Journal of Hepatology2019,11,3:3
2超高强混凝土中各组分与聚羧酸系超塑化剂之间的相互作用(英文)显示文摘超高强混凝土(ultra-high strength concrete,UHSC)的水灰比小于0.25,含有大量的硅灰等微细组分,这有利于颗粒的最优紧密堆积。硅灰的表面化学效应以及较大的表面积使其成为UHSC中最难被分散的组分。由甲基丙烯酸、甲基丙烯酸酯及甲代烯丙基磺酸合成的聚羧酸系超塑化剂能使水泥颗粒被有效润湿,然而烯丙醚-马来酸酐合成的聚羧酸系超塑化剂可以很好地分散硅灰。这2种不同的聚羧酸系超塑化剂的复合可以使其拥有不同的分子结构,从而赋予超高强混凝土很好的流动性。当只加入1种聚羧酸系超塑化剂时其掺量为1%(质量分数,下同),而当加入这种复合聚羧酸系超塑化剂时掺量为0.5%就足够了。这2种类型的聚羧酸系超塑化剂的协同效应是由于它们的选择性吸附:甲基丙烯酸盐基的聚羧酸系超塑化剂主要吸附在水泥颗粒表面,而烯丙醚基聚羧酸系超塑化剂主要吸附在硅灰颗粒表面。实验表明:小分子量的有机酸阴离子(如:柠檬酸盐、葡萄糖酸盐及酒石酸盐中的阴离子)与聚羧酸系超塑化剂之间具有潜在的协同作用。只需加入0.1%的这些阴离子即可显著提高烯丙醚基聚羧酸系超塑化剂的作用效果。这些阴离子可以起到一种辅助作用,它们同时吸附在水泥颗粒表面以及硅灰颗粒表面。水泥颗粒的表面首先由这些阴离子所占据,而硅灰颗粒表面吸附了烯丙醚基聚羧酸系超塑化剂和这些阴离子。这些阴离子起到了一种很强的静电分散效应,使烯丙醚基聚羧酸系超塑化剂的空间位阻效应得到加强。虽然聚羧酸系超塑化剂阴离子具有缓凝作用,但是使用这种复合聚羧酸系仍能制备出高早强混凝土。SCHROFL C GRUBER M PLANK J 2010硅酸盐学报2010,38,9:3
3水分和二氧化碳引起的水泥陈化对混凝土和砂浆中化学掺合料性能的影响(英文)显示文摘本工作旨在深入研究水泥的陈化对水泥与化学外加剂相互作用的影响。将Portland水泥分别暴露于35℃和相对湿度为90%的环境中1和3d。选取3种高效减水剂(萘系减水剂NSF、聚羧酸减水剂PCE和干酪素)、1种保水剂(MHEC,甲基纤维素)及两种促凝剂(甲酸钙和无定形氧化铝),研究了水泥与化学外加剂的相互作用。结果表明:水泥的陈化显著改变了新拌浆体的流动性、保水性与凝结行为。由于暴露过程中水泥表面部分水化,水泥的比表面积以及表面电荷均发生变化,进而影响了水泥与化学外加剂的相互作用。具体表现在以下3个方面:1)与新鲜水泥相比,减水剂在陈化水泥中的减水效果减弱,干酪素的分散能力略微降低,而PCE和PNS的分散能力均显著下降,尤其是PNS下降最大;2)陈化水泥呈现较好的保水能力和更高的需水量,因此,为了达到相同的保水效果,其所需的保水剂掺量较新鲜水泥低;3)在陈化水泥中,甲酸钙和无定形氧化铝的促凝效果显著下降,在水泥陈化3d后,这些促凝剂甚至可能延缓水泥水化。E DUBINA J PLANK 2014硅酸盐学报2014,42,2:2
4Grain Scale Separation of Casein Proteins from Whole Casein on a Source 30Q Anion-exchange Resin Column Utilizing Fast Protein Liquid Chromatography (FPLC)显示文摘PLANK J ANDRES P R 2008Protein Expression and Purification2008,60,:1
5A tutorial on Reed-Solomon coding for fault-tolerance in RAID-like systems 显示文摘PLANK J S 1997Software Practice & Experience1997,27,9:1
6High-temperature-resisting and salt-resisting spacer fluid contains fluid loss additive, suspension stabilizer, fluidity regulator, barite powder or iron ore powder, and pure water显示文摘Dugonjic-Bilic F Plank J 2011Journal of Applied Polymer Science2011,121,3:1
7Plasma N-terminal pro-brain natri- uretic peptide in type 1 diabetic patients with and without diabetic ne- phropathy显示文摘Siebenhofer A Ng LL Plank J 2003Diabet Med2003,20,7:1
8Study on the Interaction of Na-montmorillonite clay with polycarboxylates显示文摘NG S PLANK J 2012ACI Special Publication2012,,:1
9Three-dimensional analysis of reinforced concrete beam-column structures in fire显示文摘Huang Z Burgess I W Plank R J 2009Journal of Structural Engineering ASCE2009,135,10:1
10A generalized steel/reinforced concrete beam column element model for fire conditions 显示文摘CAI J BURGESS I PLANK R J 2003Engineering Structures2003,25,6:1
11Modeling membrane action of concrete slabs in composite buildings in fire Ⅱ: validations 显示文摘Huang Zhaohui Burgess I W Plank R J 2003Journal of Structural Engineering2003,129,8:1
12Modification of the molar anionic charge density of acetone-formaldehyde-sulfite dispersant to improve adsorption behavior and effectiveness in the presence of cement fluid loss polymer 显示文摘Plank J Fatima D B Nils Recalde L 2009Journal of Applied Polymer Science2009,111,4:1
13A double-blind,randomized,dose-response study investigating the pharmacodynamic and pharmacokinetic properties of the long-acting insulin analog detemir显示文摘PLANK J BODENLENZ M SINNER F 2005Diabetes Care2005,28,5:1
14A double blind, randomized, dose response study investigating the pharmacodynamic and pharmaco?kinetic properties of the long acting insulin analog detemir显示文摘Plank J Bodenlenz M Sinner F 2005Diabetes Care2005,28,5:1
15Plasma N-terminal pro-brain natriuretic peptide in Type 1 diabetic patients with and without diabetic nephropathy 显示文摘Siebenhofer A Ng LL Plank J 2003Diabet Med2003,20,:1
16Nonlinear analysis of reinforced concrete slabs subjected to fire 显示文摘HUANG Z H BURGESS I W PLANK R J 1999ACI Structure Journal1999,96,1:1
17Synthesis and performance of methacrylic ester based polycarboxylate super- plasticizers possessing hydroxy terminated poly (ethylene glycol) side chains显示文摘Plank J P5llmann K Zouaoui N 2008Cem Concr Res2008,38,10:1
18Managing Data Storage in the Network显示文摘Plank J S Bassi A Beck M T 2001IEEE Internet Computing2001,5,5:1
19Plasma N-Terminal Pro-brain natriuretic peptide in type l diabetic patients with and without diabetic nephropathy显示文摘Siebenhofer A Ng LL Plank J 2003Diabet Med2003,3,20:1
20Impact of molecular structure on zeta potential and adsorbed conformation of a-allyl-to- methoxy-polyethylene glycol-maleic anhydride superplas- ticizers 显示文摘Plank J Sachsenhauser B 2006Journal of Advanced Concrete Technology2006,4,2:1
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