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    题名 作者 年代 出处 被引量
1POLYNOMIAL INVERSE INTEGRATING FACTORS显示文摘Let (P, Q) be a C1 vector field defined in an open subset U IR2. We call inverse integrating factor a C1 solution V(x, y) of the equation . In previous works it has been shown that this function plays an important role in the problem of the center and in the determination of limit cycles. In this paper we obtain necessary conditions for a polynomial vector field (P, Q) to have a polynomial inverse integrating factor.J.Chavarriga, H.Giacomini & J.Gine (Departament de Matematica, Universitat de Lleida. Av. Jaume Ⅱ, 69, 25001 Lleida,Spain Laboratoire de Mathematiques et Physique Theorique C.N.R.S. UPRES A6083. Faculte des Sciences et Techniques. Universite de Tours. P 2000Annals of Differential Equations2000,16,4:8
2ON THE EXISTENCE OF ZERO POINTS OF A CONTINUOUS FUNCTION显示文摘A sufficient condition is given to assert that a continuous mapping between Rm and Rn has a zero. The constructive proof of the result is based upon continuation methods and supplies the existence of a path leading to the zero point.J.M. SorianoDepartamento de Andlisis Matematico, Facultad de Matemdticas, Universidad de Sevilla, Aptdo. 1160, Sevilla 41080, Spain 2002Acta Mathematica Scientia2002,22,2:7
3Acute chylous ascites mimicking acute appendicitis in a patient with pancreatitis显示文摘We report a case of acute chylous peritonitis mimicking acute appendicitis in a man with acute on chronic pancreatitis. Pancreatitis, both acute and chronic, causing the development of acute chylous ascites and peritonitis has rarely been reported in the English literature. This is the fourth published case of acute chylous ascites mimicking acute appendicitis in the literature.Emily K Smith Edmund Ek Daniel Croagh Lavinia A Spain Stephen Farrell 2009World Journal of Gastroenterology2009,15,38:7
4PROCESSES OF EPHEMERAL GULLY EROSION显示文摘The formation of ephemeral gullies can significantly increase soil loss from agricultural lands and severely impact farm productivity. Erosion prediction technology and conservation management techniques would be greatly improved if the contribution from ephemeral gullies could be more accurately quantified. Field research in Mississippi, U.S.A. and Spain has revealed three categories of ephemeral gullies. Classic ephemeral gullies formed by concentrated flow erosion from runoff occurring within the same field. Drainage ephemeral gullies formed by concentrated flow erosion from runoff originating from areas upstream of where the gully occurs. Discontinuity ephemeral gullies formed in areas where management practices have created a sudden change in slope, such as field boundaries adjacent to roads.Despite the large differences in climate, watershed size, hydrology, and geography, the ephemeral gullies observed in Spain were morphologically similar to those in Mississippi. Using an experimental flume,ephemeral gully erosion proceeded primarily through bed incision, gully widening, and bank steepening,and total sediment load depended upon whether the flow was detachment- or transport-limited.Javier Casali(Department of Projects and Rural Engineering, Public University of Navarra, 31006 Pamplona, Navarra, Spain) SeaN J. Bennett(National Sedimentation Laboratory, USDA-ARS, P.O. Box 1157, Oxford, MS 38655, USA)Kerry M. Robinson(Plant Science and 2000International Journal of Sediment Research2000,15,1:4
5INTEGRABILITY VIA INVARIANT ALGEBRAIC CURVES FOR PLANAR POLYNOMIALDIFFERENTIAL SYSTEMS显示文摘We present an introduction to the Darboux integrability theory of planar complex and real polynomial differential systems containing some improvements to the classical theory.Colin Christopher (School of Mathematics and Statistics, University of Plymouth, Plymouth, Devon PL4 SAA, UNITED KINGDOM) Jaume Llibre (Dopartament de Matematiques, Universitat Autonoma de Barcelona, 08193-Bellaterra, Barcelona, SPAIN) 2000Annals of Differential Equations2000,16,1:4
6取代喹啉的^(13)CNMR研究显示文摘报道了14种新的取代喹啉的13CNMR谱.应用13CNMR等谱确定了这14种新化合物的分子结构,并对全部谱峰进行了归属,初步探讨了分子结构对13CNMR化学位移的影响.谭成权 PedroJ.Campos(DepartamentodeQuimica UniversidaddeLaRioja 26001-Logrono Spain) MiguelA.Rodriguez(DepartamentodeQuimica UniversidaddeLaRioja 26001-Logrono Spain) 胡皆汉 1997波谱学杂志1997,14,4:3
7Comparative Analysis of the Safety and Efficacy of Transcatheter Arterial Chemoembolization and Yttrium-90 Radioembolization in Patients with Unresectable Hepatocellular Carcinoma显示文摘Craig Lance Gordon McLennan Nancy Obuchowski Grace Cheah Abraham Levitin Mark Sands James Spain Shyam Srinivas Sankaran Shrikanthan Federico N. Aucejo Richard Kim K.V. Narayanan Menon 2011Journal of Vascular and Interventional Radiology2011,,12:3
8Effects of adaptation on biodegradation rates in sediment/water cores from estuarine and freshwater environments显示文摘Spain JC 1980Applied Environmental Microbiology1980,40,:2
9基于TAFE模式的中澳合作办学问题与对策研究显示文摘TAFE是世界三大职业教育体系之一,在TAFE模式下的中澳合作办学过程中,两国学历资格认证存在差异、质量评价标准不一、课程体系不同等问题是合作难点。文章从完善学历资格框架、建立中外合作办学质量监管认证制度、构建中澳合作办学课程体系、打造中澳融合双师型的国际化师资队伍、建立与国际接轨的教学管理体系等方面提出具体对策,为中澳合作办学院校提供借鉴。邵李津 Leonard Spain 2019教育评论2019,,6:2
10西班牙结核病人的治疗完成和病死率现状显示文摘目的:确定结核病人的完成治疗情况,并分析中断治疗和病死的相关因素。方法:在 SEPAR 结核病和呼吸道感染工作组成员工作的地区,对 1999 年 6 月 1 日至2000 年5 月 31 日期间开始接受治疗的结核病人进行前瞻性队列分析。利用 logistic 回归对与中断治疗和病死相关的诸因素进行了研究,并计算各因素的比数比(OR)及其 95%CI。结果:本项研究涉及 76 家医院 142 名医生提供的1515 例病例信息。82%的病人完成了全部治疗,14%中断治疗,5%死亡,0.5%治疗失败,8.7%由于迁出或其它原因中断了治疗。与中断治疗有关的变量是静脉吸毒(IVDU)(OR=6.00,95%CI:2.59-13.89和移民(OR=8.57,95%CI:3.78-19.45);性别、年龄、无家可归、监禁、DOT或住院治疗与中断治疗无关。病人病死率的预报因素有酗酒(OR=6.38,95%CI:2.09-19.48);HIV 感染(OR=7.08,95%CI:2.08-29.15)和年龄大于 64 岁(OR=10,95%CI:2.9-34.07),性别、吸毒、无家可归、DOT 和住院治疗与病人的病死率无关。结论:在发达国家应对吸毒和移民病人采用 DOT,另外,需要对酗酒、HIV 感染、年龄大于64 岁者实施严格监督以降低其病死率。J.A.Caylà J.A.Caminero R.Rey N.Lara X.Vallès H.Galdós-Tangüis Working Group on Completion of Tuberculosis Treatment in Spain 姜世闻 2004结核与肺部疾病杂志2004,7,2:2
11巴塞罗那波夫拉努卡太克斯工厂改造体育文化设施项目显示文摘Barcelona,Spain 2003世界建筑2003,,12:2
12Evolution in the Management of Hepatic Trauma: A 25-Year Perspective显示文摘J. David Richardson Glen A. Franklin James K. Lukan Eddy H. Carrillo David A. Spain Frank B. Miller Mark A. Wilson Hiram C. Polk Lewis M. Flint 2000Annals of Surgery2000,,3:2
13Truncated BRCA2 is cytoplasmic: implications for cancer-linked mutations显示文摘 Jarson CJ Shihabuddin LS 1999Proc Natl Acad Sci USA1999,96,13:1
14Impairment of endotheliumdependent dilation response after resuscitation from hemorrhagic shock involved postreceptor mechanisms显示文摘 Garrison RN Spain DA 2004Shock2004,21,2:1
15Successful incorporation of SHI Guidelines into a phased outcome clinical pathway显示文摘Mcilvoy L Spain D A Raque G 2001Neurosci nurs2001,33,2:1
16Influence of environmental conditions and some soJ chemical properties on the carbon and nitrogen contents some tropical Australian rainforest soils显示文摘Spain A V 1990Australian Journal Soil Research1990,28,:1
17Thickness of reti-nal nerve fiber layer correlates with disease duration in parallelwith corticospinal tract dysfunction in untreated multiple scle-rosis显示文摘Spain RI Maltenfort M Sergott RC 2009J Rehabil Res Dev2009,46,5:1
18Identification of 15 new psoriasis susceptibility loci highlights the role of in- nate immunity显示文摘Tsoi LC Spain SL Knight J 2012Nat Genet2012,44,12:1
19Subclinical hypocalcemia, plasma biochemical parameters, lipid metabolism, postpartum disease, and fertility in postparturient dairy cows显示文摘CHAMBERLIN W G MIDDLETON J R SPAIN J N 2013J Dairy Sci2013,96,11:1
20Biodegradation of nitro-aromatic compounds显示文摘Spain J C 1995Annu Rev Micmbiol1995,,:1
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