检索结果-南通市图书馆

Clinical and Ultrasound Concordance of Joint Damages in Rheumatoid Arthritis in a Resource-Limited Country

Open Journal of Radiology 2021年第3期11卷 126-137页

作者： Sonia B. M. G. Adjadohoun Miralda Kiki Maurice M. W. D. Akanni boris vidégla Perpétue Batcho Kofi-Mensa S. Savi de Tovè Patricia Yèkpè Ahouansou Zavier C. Zomalheto Olivier Biaou Vicentia Boco Medical Imaging Department Faculty of Health Sciences University of Abomey Calavi Cotonou Republic of Benin Regional and Teaching Hospital of Borgou/Medical Imaging Department Faculty of Medicine University of Parakou Parakou Republic of Benin Rheumatology Department Faculty of Health Sciences University of Abomey Calavi Cotonou Republic of Benin

Introduction: Rheumatoid arthritis (RA) is the most common chronic inflammatory rheumatism. The increasing use of bone and joint ultrasound as a tool to aid in the detection of unrefined synovitis in developed countries, has led us to study the performance of ultrasound in the diagnosis of RA in subjects consulting in rheumatology at Cotonou. Study Method: Descriptive cross-sectional study of patients with RA, selected on the basis of ACR/ EULAR 2010 criteria. A complete clinical examination with imaging including X-rays and ultrasounds of the hands and feet were performed in all patients who have given their consent. The data collected was analyzed using EPI data 3.1 and SPSS 24.0 software. The significance rate was defined with a p-value Results: All 53 patients included had lesions on ultrasound. Synovitis was found in 98.1% and bone erosions in 88.7%. There was no agreement in the wrists between clinical examination and ultrasound (k = -0.116), MCP (k = -0.097) and MTP (k = -0.031). Agreement was very low at the PPI level (k = 0.03). It was low at the different sites, between ultrasound and radiographic detection of lesions (k between 0.022 - 0.22). Age, positive immunologic RA factor and biological inflammatory syndrome were associated with ultrasound erosions (p = 0.0001) and only age was associated with active synovitis (p = 0.022). Conclusion: Bone and articular ultrasound is a good complementary alternative to clinical examination and radiography diagnostic in early diagnosis of RA in our developing countries, in the absence of MRI which remains a luxury.

关键词： Rheumatoid Arthritis Ultrasound Erosions Synovitis Cotonou

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Contribution of Imaging to the Diagnosis of Non-Traumatic Tendinopathies of the Thoracic Limb in a Resource-Constrained Country

引用

Open Journal of Radiology 2021年第4期11卷 204-217页

作者： Sonia B. M. G. Adjadohoun Sessi M. H. G. Kiki Maurice M. W. D. Akanni Houlda Tossa boris vidégla Dossou-Yovo Hilaire Kofi-Mensa S. Savi de Tovè Patricia Yèkpè̀ Ahouansou Zavier C. Zomalheto Olivier Biaou Vicentia Boco Department of Medical Imaging Faculty of Health Sciences University of Abomey-Calavi Cotonou Benin Department of Regional and Teaching Hospital of Borgou/Medical Imaging Faculty of Medicine University of Parakou Parakou Benin Department of Rheumatology Faculty of Health Sciences University of Abomey-Calavi Cotonou Benin

Introduction: Tendinopathy of the thoracic limb (TMT) is frequent, and is responsible for an important socio-professional handicap. Medical imaging, in particular, ultrasound has a major role in contributing to the diagnosis. As the use of ultrasound is recent in osteoarticular pathology, especially in Africa, we proposed to determine the contribution of imaging in the diagnosis of tendinopathy of the thoracic limbs in a country with limited resources. Patients and Method: A descriptive and analytical cross-sectional study of patients with tendinopathy of the thoracic limb who consulted the rheumatology department of the CNHU-HKM of Cotonou from August 6, 2019 to October 6, 2019. We evaluated the concordance of thoracic limb tendinopathy between imaging (radiography and ultrasound) and the clinic on the one hand and then between radiography and ultrasound on the other hand. The analysis of the collected data was carried out with the Epi-info software version 7.***.1.0. Then the concordance was evaluated by the kappa coefficient. Results: Fifty- two (52) patients with 104 joints were evaluated. The average age was 54.92 ± 3.40 years. Clinically, rotator cuff tendinopathy was the most frequent abarticular pathology (45.19%). The clinical-ultrasound agreement was strong (k = 0.7527) for the shoulders, very strong (k = 0.9360) for the elbows and moderate for the wrists (k = 0.6695). The clinical-radiographic agreement was weak (k = 0.2316) at the shoulder level and very weak (k = 0.2087) at the elbow level. The radio-ultrasound agreement was very low in the shoulders (k = 0.1522), elbows (k = 0.1859) and wrists (k = 0.0001). Conclusion: The contribution of imaging in the diagnosis of TMT remains certain even in a country with limited resources like ours. Ultrasound is a reliable examination for the diagnosis of non-traumatic tendinopathy of the thoracic limb with a good clinical-ultra- sound concordance a

关键词： Tendinopathy Thoracic Limb Radio-Clinical Concordance Clinical-Ultrasound Concordance Benin

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

天然气水合物储层性质对微波加热后储层温度的影响

引用

中国石油大学学报(自然科学版) 2025年

作者：樊燊王旱祥张辛刘延鑫孙秉宇葛家旺葛城才刘博 KHROUSTALEV boris 管冰中国石油大学(华东)海洋物探及勘探开发装备国家工程研究中心中国石油大学(华东)机电工程学院山东威马泵业股份有限公司

为了弥补降压法开采后期储层结冰、水合物二次生成等方面的不足,运用微波加热技术向储层进行能量补充。选用漏泄同轴天线作为微波加热装置,根据装置结构设计天然气水合物储层微波加热工艺方案,并且建立水合物储层微波加热仿真模型,通过... 详细信息

为了弥补降压法开采后期储层结冰、水合物二次生成等方面的不足,运用微波加热技术向储层进行能量补充。选用漏泄同轴天线作为微波加热装置,根据装置结构设计天然气水合物储层微波加热工艺方案,并且建立水合物储层微波加热仿真模型,通过试验验证仿真模型的准确性,并分析储层性质对微波加热后储层温度的影响规律。结果表明:储层微波加热工艺方案能够有效提升储层温度,储层初始温度为2℃,微波加热后储层最高温度为26.22℃,平均温度为5.19℃;储层温度随着损耗因子的增大而增大,随着介电常数的增大而减小;随着储层密度和比定压热容的增大,储层升温效果变差;随着储层导热系数的增大,储层温度分布更加均匀。

关键词：天然气水合物储层性质微波加热储层温度微波天线

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Surface-enhanced Raman scattering inside Au@Ag core/shell nanorods

引用

Nano Research 2016年第8期9卷 2303-2318页

作者： boris Khlebtsov Institute of Biochemistry and Physiology of Plants and Microorganisms Russian Academy of Sciences Saratov 410049 Russia Saratov National Research State University Saratov 410012 Russia

The design and synthesis of plasmonic nanoparticles with Raman-active molecules embedded inside them are of significant interest for sensing and imaging applications. However, direct synthesis of such nanostructures with controllable shape, size, and plasmonic properties remains extremely challenging. Here we report on the preparation of uniform Au@Ag core/sheU nanorods with controllable Ag shells of 1 to 25 nm in thickness. 1,4-Aminothiophenol （4-ATP） molecules, used as the Raman reporters, were located between the Au core and the Ag shell. Successful embedding of reporter molecules inside the core/shell nanoparticles was confirmed by the absence of selective oxidation of the amino groups, as measured by Raman spectroscopy. The dependence of Raman intensity on the location of the reporter molecules in the inside and outside of the nanorods was studied. The molecules in the interior showed strong and uniform Raman intensity, at least an order of magnitude higher than that of the molecules on the nanoparticle surface. In contrast to the usual surface-functionalized Raman tags, aggregation and clustering of nanoparticles with embedded molecules decreased the surface-enhanced Raman scattering （SERS） signal. The findings from this study provide the basis for a novel detection technique of low analyte concentration utilizing the high SERS response of molecules inside the core/shell metal nanostructures. As an example, we show robust SERS detection of thiram fungicide as low as 10-9 M in solutions.

关键词： surface-enhanced Ramanscattering (SERS) Au@Ag nanorods nanocuboids multipole plasmons

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

On approach for obtaining approximate solution to highly nonlinear oscillatory system with singularity

引用

Acta Mechanica Sinica 2020年第4期36卷 910-917页

作者： Zvonko Rakaric boris Stojic Department of Mechanics Faculty of Technical SciencesUniversity of Novi Sad21000 Novi SadSerbia Department of Mechanization and Design Engineering Faculty of Technical SciencesUniversity of Novi Sad21000 Novi SadSerbia

This paper deals with further investigations of recently introduced so-called low-frequency pendulum mechanism,which represents an extended form of classical *** equation of motion,which is in Eksergian’s form,is a singular and highly nonlinear second order differential *** is transformed by suitable choice of a new “coordinates”into classical form of nonlinear conservative oscillator containing only inertial and restoring force ***,due to the singularity of coefficient of governing equation that shows hyperbolic growth,Laurent series expansion was *** these,we derived a nonsingular nonlinear differential equation,for which there exists an exact solution in the form of a Jacobi elliptic *** using this exact solution,and after returning to the original coordinate,both explicit expression for approximate natural period and solution of motion of mechanism were *** between approximate solution and solution is obtained by numerical integration of exact equation shows noticeable *** of impact of mechanism parameters on period is given.

关键词： Pendulum mechanism Low frequency Singularity Laurent series Jacobi elliptic function

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

A Linear System Arising from a Polynomial Problem and Its Applications

引用

Chinese Annals of Mathematics,Series B 2007年第3期28卷 283-292页

作者： boris SHEKHTMAN Department of Mathematics University of South FloridaPHY1144202 E Fowler AvenueTampaFL 33620-5700USA.

A linear system arising from a polynomial problem in the approximation theory is studied, and the necessary and sufficient conditions for existence and uniqueness of its solutions are presented. Together with a class of determinant identities, the resulting theory is used to determine the unique solution to the polynomial problem. Some homogeneous polynomial identities as well as results on the structure of related polynomial ideals are just by-products.

关键词： Linear system Determinant identity Polynomial ideal in two variables

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

The Log Minimal Model Program for Horospherical Varieties Via Moment Polytopes

引用

Acta Mathematica Sinica,English Series 2018年第3期34卷 542-562页

作者： boris PASQUIER Institut Montpelliérain Alexander Grothendieck CNRS Univ. Montpellier Laboratoire de Mathématiques et Applications CNRS Université de Poitiers

In a previous work, we described the Minimal Model Program in the family of Q-Gorenstein projective horospherical varieties, by studying certain continuous changes of moment polytopes of polarized horospherical varieties. Here, we summarize the results of the previous work and we explain how to generalize them in order to describe the Log Minimal Model Program for pairs（X, Δ） when X is a projective horospherical variety.

关键词： Log minimal model program horospherical varieties moment polytopes

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Chances and challenges in China

引用

Protein & Cell 2016年第4期7卷 233-235页

作者： boris Tefsen Department of Biological Sciences Xi'an Jiaotong-Liverpool University Suzhou China

So there I was, 35 years old and at the crossroads of my scientific career. The current academic system in the Netherlands, like in many other places around the world （Powell, 2015）, is not designed to have scientists staying in a postdoc position forever. So, you are either deemed good enough to become a permanent staff member, or you have to leave academia at some point and try your luck in a pharmaceutical company or elsewhere. I had not succeeded in the former, but I also did not want to do the latter, so I took a less threaded path and headed to China.

关键词： Chances challenges China

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

The family of quantum droplets keeps expanding

引用

Frontiers of physics 2021年第2期16卷 9-12页

作者： boris A.Malomed Department of Physical Electronics School of Electrical EngineeringFaculty of Engineeringand Center for Light-Matter InteractionTel Aviv UniversityP.O.B.39040Tel AvivIsrael Instituto de Alta Investigacion Universidad de TarapacaCasilla 7DAricaChile

In the course of the past 25 years,several new quantum states of matter have been created in ultracold gases,starting from the celebrated Bose-Einstein condensates(BECs),which were first made in 1995,follow-ing the theoretical prediction published in 1924[1].This achievement was followed by the creation and detailed exploration of degenerate Fermi gases[2].

关键词： quantum gases expanding

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Existence of strong solutions in critical spaces for barotropic viscous fluids in larger spaces

引用

Science China Mathematics 2012年第1期55卷 309-336页

作者： HASPOT boris Karls Ruprecht Universitt Heidelberg Institut for Applied Mathematics Basque Center of Applied Mathematics Bizkaia Technology Park

This paper is dedicated to the study of viscous compressible barotropic fluids in dimension N *** address the question of well-posedness for large data having critical Besov *** result improves the analysis of Danchin and of the author inasmuch as we may take initial density in B N p p,1 with 1 p < +∞.Our result relies on a new a priori estimate for the velocity,where we introduce a new unknown called effective velocity to weaken one of the couplings between the density and the *** particular,our result is the first in which we obtain uniqueness without imposing hypothesis on the gradient of the density.

关键词： partial differential equation harmonic analysis fluid mechanics

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：