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贮藏器官中淀粉的含量和结构由什么控制

国外畜牧学（草原与牧草） 1996年第1期 27-31页

作者： Alison m.smith Kay Denyer Cathie R.martin 柏正强

高等植物的成熟淀粉贮藏器官,如块茎、豆类的胚及禾谷类的胚乳中,淀粉含量占干重的50％～80％。这些淀粉合成的调节很复杂,人们对其所知甚少。最近,由于可能通过遗传改变产生新的淀粉,引起了越来越多的人们对淀粉合成过程的兴趣。

关键词：植物贮藏器官淀粉结构控制

Pancreaticopleuralfistula:etiology,treatmentandlong-termfollow-up

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Hepatobiliary & Pancreatic Diseases International 2012年第2期11卷 215-219页

作者： Keith J Roberts maria Sheridan Gareth morris-Stiff Andrew m.smith Department of Pancreatic Surgery St James University HospitalLeedsUK

BACKGROUND:Pancreaticopleural fistula(PPF) are *** multidisciplinary treatment is required due to nutritional compromise and *** is the first description of long-term follow-up of patients with ***:Eleven patients with PPF treated at a specialist unit were ***,investigation,treatment and outcomes were ***:Pancreatitis was the etiology of the PPF in 9 patients,and in the remaining 2 the PPF developed following distal ***-sectional imaging demonstrated the site of duct disruption in 10 cases,with endoscopic retrograde cholangiopancreatography identifying the final *** of pancreatic exocrine secretion and percutaneous drainage formed the mainstay of *** cases resolved following pancreatic duct stent insertion and three patients required surgical treatment for established *** were no *** all cases that resolved there has been no recurrence of PPF over a median follow-up of 50 months(range 15-62).CONCLUSIONS:PPF is an uncommon event complicating pancreatitis or pancreatectomy;pancreatic duct disruption is the common link.A step-up approach consisting of minimally invasive techniques treats the majority with surgery needed for refractory sepsis.

关键词： pancreatic disease pancreatitis pancreatic pseudocyst

PHOSPHORUS REmOVAL USING STEEL SLAG

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Acta metallurgica Sinica(English Letters) 2006年第6期19卷 449-454页

作者： R.W. smith metallurgical and materials Department Nevada University of Reno NV89503 Nevada USA

Steel slag is a byproduct produced in large amounts in the steel-making process. It is an important resource that can be effectively utilized. An experiment was described in which steel slag was tested as an adsorbent for the removal of phosphorus from waste water. Phosphorus removal depended on the amount of steel slag added, the pH value, the contact time, and the initial concentration. Under laboratory conditions when the added slag was 7.5g/L, the contact time 2h, and the pH value was equivalent to 6.5, over 99% of the phosphorus was removed; the experimental data on steel slag adsorption of phosphorus in the water fitted the Freundlich isotherm model. Steel slag was found to be very effective in adsorbing phosphorus.

关键词： steel slag waste water phosphorus removal

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返璞归真:瓦格纳主义前的瓦格纳

歌剧 2024年第9期 80-89页

作者：司马勤李正欣(编译) 不详

应该说我也算得上有些年纪了,所以我还记得多年前指挥家罗杰·诺林顿(Roger Norrington)提出了一个在当年算得上激进的概念:他参考了考古研究以还原古乐器,并按时间顺序演奏贝多芬的全套交响曲。

关键词：瓦格纳贝多芬返璞归真考古研究时间顺序交响曲古乐器指挥家

The pleiotropic effects of tissue plasminogen activator in the brain:implications for stroke recovery

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Neural Regeneration Research 2016年第9期11卷 1401-1402页

作者： Julia A.Grummisch Nafisa m.Jadavji Patrice D.smith Department of Neuroscience Carleton University

Tissue plasminogen activator （tPA） use in the treatment of isch- emic stroke： tPA is a serine protease that catalyzes the breakdown of blood dots. Because of its thrombolytic properties, tPA is used to treat specific types of stroke, including ischemia, but is contra- indicated for treatment of hemorrhagic stroke or head trauma. Although a life saving and powerful ＇dot buster＇, tPA has a short therapeutic window. When administered outside of this prescribed timeframe, research suggests that tPA can produce neurotoxic ef- fects in the brain, due in part to activation of several signalling pro- cesses associated with cell apoptosis, degradation of the extracel- lular matrix, and increase in the permeability of the neurovascular unit （Yepes et al., 2009）. Concerted research has been dedicated to- ward understanding the mechanisms mediating the impact of tPA on the brain, using both in vivo and in vitro animal models.

关键词： The pleiotropic effects of tissue plasminogen activator in the brain PA

modelling the daily risk of Ebola in the presence and absence of a potential vaccine

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Infectious Disease modelling 2020年第1期5卷 905-917页

作者： Stéphanie m.C.Abo Robert smith Department of Applied mathematics The University of WaterlooWaterlooCanada Department of mathematics and Faculty of medicine The University of Ottawa150 Louis-Pasteur PvtOttawaONK1N6N5Canada

Ebola virus d one of the deadliest viral diseases,with a mortality rate around 90%d damages the immune system and organs,with symptoms including episodic fever,chills,malaise and *** Recombinant Vesicular Stomatitis Virus-based candidate vaccine(rVSV-ZEBOV)has demonstrated clinical efficacy against Ebola in ring-vaccination clinical *** order to evaluate the potential effect of this candidate vaccine,we developed risk equations for the daily risk of Ebola infection both currently and after *** risk equations account for the basic transmission probability of Ebola and the lowered risk due to various protection protocols:vaccination,hazmat suits,reduced contact with the infected living and dead *** space was sampled using Latin Hypercube Sampling,a statistical method for generating a near-random sample of parameter *** found that at a high transmission rate of Ebola(i.e.,if the transmission rate is greater than 90%),a large fraction of the population must be vaccinated(>80%)to achieve a 50%decrease in the daily risk of *** a vaccine is introduced,it must have at least 50%efficacy,and almost everyone in the affected areas must receive it to effectively control outbreaks of *** results indicate that a low-efficacy Ebola vaccine runs the risk of having vaccinated people be overconfident in a weak vaccine and hence the possibility that the vaccine could make the situation worse,unless the population can be sufficiently educated about the necessity for high vaccine uptake.

关键词： Ebola virus disease mathematical model Risk equations Latin hypercube sampling Eradication

COmPLEXITY OF SYSTEm mAINTAINABILITY ANALYSIS BASED ON THE INTERPRETIVE STRUCTURAL mODELING mETHODOLOGY： TRANSDISCIPLINARY APPROACH

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Journal of Systems Science and Systems Engineering 2016年第2期25卷 254-268页

作者： A. Ertas m.W. smith D. Tate W.D. Lawson T.B. Baturalp Department of mechanical Engineering Texas Tech University Lubbock TX USA 79410 Department of Industrial Design Xi 'an Jiaotong-Liverpool University Suzhou 215123 Jiangsu China Department of Civil Engineering Texas Tech University Lubbock TX USA 79410

This paper outlines a diagnostic approach to quantify the maintainability of a Commercial off-the-Shelf （COTS）-based system by analyzing the complexity of the deployment of the system components. Interpretive Structural modeling （ISm） is used to demonstrate how ISm supports in identifying and understanding interdependencies among COTS components and how they affect the complexity of the maintenance of the COTS Based System （CBS）. Through ISm analysis we have determined which components in the CBS contribute most significantly to the complexity of the system. With the ISm, architects, system integrators, and system maintainers can isolate the COTS products that cause the most complexity, and therefore cause the most effort to maintain, and take precautions to only change those products when necessary or during major maintenance efforts. The analysis also clearly shows the components that can be easily replaced or upgraded with very little impact on the rest of the system.

关键词： COTS Based System maintainability complexity Interpretive Structural modeling

GDNF-Enhanced Axonal Regeneration and myelination Following Spinal Cord Injury is mediated by Primary Effects on Neurons

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神经损伤与功能重建 2009年第4期4卷 268-281页

作者： LIQUN ZHANG ZHENGWEN mA GEORGE m. smith XUEJUN WEN YELENA PRESSmAN PATRICK m. WOOD AND XIAO-mING XU Kentucky Spinal Cord Injury Research Center Departments of Neurological Surgery and Ana-tomical Sciences and NeurobiologyUniversity of Louisville School of Medicine Louisville Kentueky Department of Orthopedics The First Affiliated Hospital of Fujian Medical University Fuzhou Fujian People＇s Republic of China Spinal Cord and Brain Injury Research Center Department of Physiology University of Kentucky Chandler Medical Center Lexington Kentucky Clemson-mUSC Joint Bioengi- neering Program Charleston South Carolina The miami Project to Cure Paralysis Departments of Neurological Surgery University of Miami School of Medicine MiamiFlorida Spinal Cord and Brain Injury Research Group Stark Neurosciences Research Institute and Department of Neurological Surgery Indiana University School of Medicine Indianapolis Indiana

我们先前研究表明胶质细胞源性神经营养因子(GDNF)联合施万细胞移植能促进脊髓损伤后轴突再生和髓鞘形成。然而,GDNF介导这一过程的细胞靶点尚不清楚。在此,我们报道了GDNF可增加在体再生轴突的数目和直径,并促进体外背根神经节神经元... 详细信息

我们先前研究表明胶质细胞源性神经营养因子(GDNF)联合施万细胞移植能促进脊髓损伤后轴突再生和髓鞘形成。然而,GDNF介导这一过程的细胞靶点尚不清楚。在此,我们报道了GDNF可增加在体再生轴突的数目和直径,并促进体外背根神经节神经元的轴突向外生长,提示GDNF对神经元有直接作用。在施万细胞-背根神经节神经元共培养下,GDNF显著增加施万细胞生成的髓鞘数目;GDNF处理对孤立培养的施万细胞增殖无作用,但可促进已与神经轴突有突触联系的施万细胞增殖;GDNF可增加孤立施万细胞中分子量为140kDa的神经细胞黏附分子(NCAm)的表达,但对黏附分子L1表达或神经营养因子NGF、NT3及BDNF分泌没有影响。总之,这些结果支持假设:GDNF提高轴突再生和施万细胞髓鞘形成主要是通过GDNF对神经元的直接作用介导的,并且提示GDNF联合施万细胞移植可能是促进脊髓损伤后轴突再生和髓鞘形成的有效策略之一。

关键词： GDNF 轴突髓鞘形成再生施万细胞脊髓损伤

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