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Accuracy of endoscopic ultrasound-guided tissue acquisition in the evaluation of lymph nodes enlargement in the absence of on-site pathologist

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World journal of Gastroenterology 2017年第31期23卷 5755-5763页

作者： Yung Ka Chin julio Iglesias-Garcia daniel de la Iglesia jose larino-Noia Ihab Abdulkader-Nallib Hector lázare Susana Rebolledo Olmedo j Enrique dominguez-Munoz department of Gastroenterology and Hepatology University Hospital of Santiago de Compostela Health Research Institute of Santiago de Compostela (IdIS) University Hospital of Santiago de Compostela department of Pathology University Hospital of Santiago de Compostela

To evaluate factors that influence the diagnostic accuracy of endoscopic ultrasound (EUS)-guided tissue acquisition for lymph node enlargement in the absence of an on-site pathologist. METHOdSA retrospective analysis of patients who underwent EUS-guided tissue acquisition for the pathological diagnosis of lymph node enlargement between April 2012 and june 2015 is reported. Tissue acquisition was performed with both cytology and biopsy needles of different calibers. The variables evaluated were lymph node location and size, number of passes and type of needle used. Final diagnosis was based on surgical histopathology or, in non-operated cases, on EUS-guided tissue acquisition and imaging assessment with a minimum clinical follow-up of 6 mo. RESUlTSduring the study period, 168 lymph nodes with a median size of 20.3 mm (range 12.5-27) were sampled from 152 patients. Ninety lymph nodes (53.6%) were located at mediastinum, and 105 (62.5%) were acquired with biopsy needles. The final diagnosis was benign/reactive origin in 87 cases (51.8%), malignant in 65 cases (38.7%), and lymphoma in 16 cases (9.5%). The sensitivity, specificity, positive predictive value and negative predictive value for the detection of malignancy were 74.1%, 100%, 100% and 80.6%, respectively. The overall accuracy was 87.5% (95%CI: 81.7-91.7). No variables were independently associated with a correct final diagnosis according to the multivariate analysis. CONClUSIONEUS-guided tissue acquisition is a highly accurate technique for assessing lymph node enlargement. None of the variables evaluated were associated with diagnostic accuracy.

关键词： lymph node Endoscopic ultrasound Fine-needle aspiration Fine-needle biopsy Accuracy

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The total cross sections of the ^(11)B(α,n)^(14N) and the ^(10)B(α,n)^(13)N reactions between 2 and 6 MeV

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Nuclear Science and Techniques 2017年第8期28卷 111-116页

作者： R. M. Prior M. C. Spraker R. H. France S. Stave M. W. Ahmed H. j. Karwowski j. M. Mueller l. S. Myers H. R. Weller University of North Georgia Dahlonega GA 30597 USA Georgia College & State University MilledgevilleGA 31061 USA duke University Durham NC 27708 USA Triangle Universities Nuclear laboratory DurhamNC 27708 USA University of North Carolina Chapel Hill NC 27599 USA Present Address: Bluffton University Bluffton OH 45817USA

There is considerable interest in potential aneutronic fusion reactors. One possible reaction is^(11)B(p,a)***, the emitted alpha particles are energetic enough to generate neutrons by interacting with boron inside the reactor through the ^(11)B(α,n)^(14N) and ^(10)B(α,n)^(13)N *** aid in evaluating neutron production within this potential aneutronic reactor, the total cross sections were measured for the ^(11)B(α,n)^(14N) reaction between 2 and 6 MeV and for the ^(10)B(α,n)^(13)N reaction between 2 and 4.8 MeV. The results are presented and compared with previously reported results.

关键词：聚变反应堆 MeV 总截面核反应堆中子反应器 α粒子电子

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Schottky s/d MOSFETs with high-K gate dielectrics and metal gate electrodes

Schottky s/d MOSFETs with high-K gate dielectrics and metal ...

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2004 7th International Conference on Solid-State and Integrated Circuits Technology（ICSICT 2004）

作者： S.j.lee dSH Chan C.H.Tung jagar Singh Albert Chin d.l.Kwong Silicon Nano device lab Dept.of ECENational University of SingaporeSingapore119260 Institute of Microelectronics Singapore 117685 dept.of Electronics Engineering National Chiao Tung UniversityHsinchuTaiwan 300China dept.Electrical & Computer Eng. Univ.of TexasAustinTX 78712USA

Bulk Schottky silicide source/drain n- and p-MOS transistors(SSdTs) with EOT=2.0～2.5nm HfO gate dielectric and HfN/TaN metal gate have been successfully demonstrated using a low temperature process.P-SSdTs with PtSi silicide show excellent electrical performance of I/I～10-10 and subthreshold slop of 66 mV/dec.N-SSdTs with YbSi silicide have also demonstrated a very promising characteristic with a recorded high I/I radio of～10 and subthreshold slope of 75mV/*** the best of our knowledge,these are the best SSdTs data reported so *** implant free low temperature process relaxes the thermal budget of high-K dielectric and metal gate materials. Our results are expected to be further improved when using ultra-thin-body(UTB) SOI structures,showing great potential of this low temperature process SSdTs for future sub-tenth micron CMOS technology.

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振动分析的矩阵计算机方法

振动分析的矩阵计算机方法

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作者： d.j.·哈托(d.j. Hatter)

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Quantitative modelling of viscoelasticity of isotropic fibrous composites with viscoelastic matrices

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Theoretical & Applied Mechanics letters 2011年第5期1卷 69-72页

作者： david j.Cottenden Michelle l.Oyen department of Engineering University of CambridgeTrumpington StreetCambridge CB2 1PZUK

despite the wide usage of isotropic fibrous composites with a viscoelastic polymer matrix,no analytic model for their mechanical behaviour is *** paper develops such a model for time-dependent Young’s modulus,showing that for typical constituents the time constants of composites are up to about 6% greater than the matrix shear time *** is strongly suppressed for stiff fibres even at modest fibre volume *** with known results for particle and oriented fibre composites confirms isotropic fibrous composites as between the two in terms of viscoelastic behaviour,but more similar to the latter.

关键词： isotropic fibrous composites viscoelasticity matrix

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dIFFERENTIAl OPERATORS OF INFINITE ORdER IN THE SPACE OF RAPIdlY dECREASING SEQUENCES

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Acta Mathematica Scientia 2016年第2期36卷 325-333页

作者： M.MAldONAdO j.PRAdA M.j.SENOSIAIN department of Mathematics Salamanca University

We consider the space of rapidly decreasing sequences s and the derivative operator d defined on it. The object of this article is to study the equivalence of a differential operator of infinite order; that is φ（d） =^∞∑k=0φkd^k.φk constant numbers an a power of ***, meaning, is there a isomorphism X （from s onto s） such that Xφ（d） = d^nX？. We prove that if φ（d） is equivalent to dn, then φ（d） is of finite order, in fact a polynomial of degree n. The question of the equivalence of two differential operators of finite order in the space s is addressed too and solved completely when n = 1.

关键词： Ordinary differential operators sequence spaces operators on function spaces

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dEVElOPMENT OF CONSTITUTE EQUATIONS FOR Ti-6Al-4V AllOY UNdER HOT-WORKING CONdITION

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Acta Metallurgica Sinica(English letters) 2000年第1期13卷 263-269页

作者： l. X. li and d. S. Peng (department of Materials Science and Engineering, Central SouthUniversity of Technology, Changsha 410083, China)

The deformaton behavior of Ti - 6Al - 4V alloy under hot - working condition has been studied by compression testing in the temperature range 750 - 950℃ and strain rate range 0.05 - 15s -1. The flow stress decreases with the increase of temperature and with the decrease of strain rate. After a steep initial strain hardening, a flow softening occurs. This softening is mainly ascribed to the temperature rise and dynamic *** a simple extension, a classical sinushyperbolic constitutive equation can be used to describe the flow behavior of Ti - 6Al - 4V alloy. flow stress is described as a function of strain, strain rate and temperature. The parameters Q, n andaare the same at differ- ent deformation conditions, and A is a funciton of strain.

关键词： Ti-6Al-4V alloy flow stress constituteive equation

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Mohamed El Naschie’s Revision of Albert Einstein’s E=m_(0)c^(2):A definite Resolution of the Mystery of the Missing dark Energy of the Cosmos

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International journal of Modern Nonlinear Theory and Application 2013年第1期2卷 55-59页

作者： j.H.He l.Marek-Crnjac Nantong Textile Institute National Engineering Laboratory for Modern SilkCollege of Textile and ClothingSoochow UniversitySuzhouChina Technical School Center of Maribor MariborSlovenia

The Egyptian engineering scientist and theoretical physicist Mohamed El Naschie has found a definite resolution to the missing dark energy of the cosmos based on a revision of the theory of Relativity. Einstein’s equation of special relativity E = m0c2, where m0 is the controversial rest mass and c is the velocity of light developed in smooth 4d space-time was transferred by El Naschie to a rugged Calabi-Yau and K3 fuzzy Kahler manifold. The result is an accurate, effective quantum gravity energy-mass relation which correctly predicts that 95.4915028% of the energy in the cosmos is the missing hypothetical dark energy. The agreement with WMAP and supernova measurements is astounding. different theories are used by El Naschie to check the calculations and all lead to the same quantitative result. Thus the theories of varying speed of light, scale relativity, E-infinity theory, M-theory, Heterotic super strings, quantum field in curved space-time, Veneziano’s dual resonance model and Nash’s Euclidean embedding all reinforce, without any reservation, the above mentioned theoretical result of El Naschie which in turn is in total agreement with the most sophisticated cosmological measurement. Incidentally these experimental measurements and analysis were awarded the 2011 Nobel Prize in Physics to Adam Riess, Brian Schmidt, and Saul Perlmutter.

关键词： dark Matter Homology of Fuzzy Kahler Betti Numbers Heterotic Strings New Special Relativity Theory

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双螺旋

双螺旋

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作者： j.d.·沃森(j.d. Watson)

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RECONdITIONING MARINE SEISMIC dATA FOR INTERACTIVE INTERPRETATION

RECONDITIONING MARINE SEISMIC DATA FOR INTERACTIVE INTERPRET...

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Beijing(89) International Symposium on Exploration Geophysics

作者： Kurppenbach,j.A. Carter,M.d. Mobley,S.l. lawrence,E. Matthews,R.H. Energy Analysts Inc. Energy Analysts Inc. Energy Analysts Inc. TlC data Processing Center Inc TlC data Processing Center Inc

＜正＞The historical interpretation approach is based upon time and *** the modern interpretive workstation,the full range of the seismic attributes can be examined in varying color and spa- tial *** of traditional seismic data displayed using conventional methods are shown be- fore and after workstation manipulation with striking results.

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