检索结果-南通市图书馆

Various Aetiologies of Non-Traumatic Coccydynia Cause Pain in the Posterior Sacrococcygeal Leg of the Pelvic Tripod: A Burden on the Healthcare Sector

引用

Open Journal of Orthopedics 2024年第7期14卷 334-353页

作者： Kumar Satya Nandivada Venkata Kiran Nadavinamani Shivanand Raghavendra Oommen Elsy Biju Bharadwaja Nikhil Nandivada Nandivada Vaishnavi rizvi Usama Ahmed Krushi Orthopaedic Welfare Society Research Wing Visakhapatnam India

Introduction: Coccydynia, television disease, and coccygodynia are the different names given to this disabling disease, which can become chronic. It was described by Simson in 1859. Coccydynia means pain at the end of the vertebral column. Non-traumatic coccydynia is a diagnosis, which is never straightforward like traumatic coccydynia because the onset is unclear, and both the patient and the unaware clinician face many challenges in treating it on time and with accuracy. Coccyx was likened to a cuckoo bird’s beak as a curved bone of fused 3 to 5 vertebrae with remnant disc material in some rare cases, unfused segments, linear scoliosis or subluxations and deformities. Stress X-rays of the coccyx in the antero-posterior and lateral views in standing and sitting reveal the “Dynamic Instability” due to congenital coccygeal morphological, pathological and mechanical variations. Material and Methods: This is a complex study having retrograde data collected from online publications from various databases, like PubMed, Embase, and Cochrane Library and also antegrade data collected from 100 patients with their consent from patients in Adam and Eve Specialised Medical Centre-based at Abu Dhabi, UAE and data was processed in the research centre of Krushi Orthopaedic Welfare Society based in India between 2014-2024 following all guidelines of Helsinki and approved by the ethics board of Krushi Orthopaedic Welfare Society. Clinical Presentation: The coccyx is painful, with aches, spasms, and an inability to sit. This affects daily activities without any particular date of onset. The onset remains insidious for the non-traumatic variety of coccydynia. Aetiology and Patho Anatomy: Non-traumatic coccydynia can be caused by a myriad of reasons, like congenital morphological variations, acquired dynamic instabilities, and hidden trauma remaining quiescent to re-surface as a strain-induced pain. Radiological Presentations: Unless clarity is focused on these coccygeal views, the err

关键词： Coccydynia Coccygodynia Pelvic Floor Chordoma Pilonidal Sinus Fused Sacrococcygeal Segment Non-Traumatic Coccydynia Entrapment of Coccygeal Nerves Dural Syndrome

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

Optimal trajectory and heat load analysis of different shape lifting reentry vehicles for medium range application

引用

Defence Technology（防务技术） 2015年第4期11卷 350-361页

作者： S.Tauqeer ul Islam rizvi Lin-shu HE Da-jun XU School of Astronautics Beihang University

The objective of the paper is to compute the optimal burn-out conditions and control requirements that would result in maximum down-range/cross-range performance of a waverider type hypersonic boost-glide(HBG) vehicle within the medium and intermediate ranges,and compare its performance with the performances of wing-body and lifting-body vehicles vis-a-vis the g-load and the integrated heat load experienced by vehicles for the medium-sized launch vehicle under *** optimization studies were carried out by considering the heat rate and dynamic pressure *** trajectory optimization problem is modeled as a nonlinear,multiphase,constraint optimal control problem and is solved using a hp-adaptive pseudospectral *** modeling aspects of mass,aerodynamics and aerothermodynamics for the launch and glide vehicles have been *** was found that the optimal burn-out angles for waverider and wing-body configurations are approximately 5° and 14.8°,respectively,for maximum down-range performance under the constraint heat rate *** down-range and cross-range performance of HBG waverider configuration is nearly 1.3 and 2 times that of wing-body configuration *** integrated heat load experienced by the HBG waverider was found to be approximately an order of magnitude higher than that of a lifting-body configuration and 5 times that of a wing-body *** footprints and corresponding heat loads and control requirements for the three types of glide vehicles are discussed for the medium range launch vehicle under consideration.

关键词：再入飞行器载荷分析最佳轨迹翼身组合体形状最优控制问题控制要求运载火箭

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

Predictors of cerebrospinal fluid GeneXpert MTB/RIF positivity in patients with tuberculous meningitis:A prospective cohort study

引用

Asian Pacific Journal of Tropical Medicine 2024年第10期17卷 465-472页

作者： Priyanka Gupta Neeraj Kumar Ravindra Kumar Garg Hardeep Singh Malhotra Imran rizvi Rajesh Verma Praveen Kumar Sharma Ravi Uniyal Shweta Pandey Amita Jain Parul Jain Department of Neurology King George’s Medical UniversityLucknowIndia Department of Microbiology King George’s Medical UniversityLucknowIndia

Objective:To identify the clinical,laboratory,and radiological markers that could predict a positive GeneXpert result in patients suspected of tuberculous ***:In this prospective,observational study,patients with tuberculous meningitis were systematically *** clinical,laboratory[including cerebrospinal fluid(CSF)microscopy,culture,and GeneXpert],and neuroimaging factors were *** participants were administered anti-tuberculous treatment and corticosteroids.A six-month follow-up was done to evaluate the ***:Of the 116 patients studied,54(46.6%)tested positive for GeneXpert,while 62(53.4%)were *** cranial nerve involvement(OR 3.71,95%CI 1.052-13.09,P=0.04)and the presence of basal exudates on neuroimaging(OR 5.22,95%CI 2.03-13.42,P=0.001)emerged as independent predictive factors for a positive GeneXpert result.A positive CSF GeneXpert result(P=0.002)and drug resistance(P=0.004)were significantly linked to adverse ***,a high score on the Medical Research Council stageⅢ(OR 5.64,95%CI 1.18-26.87,P=0.03)and elevated CSF cell counts(OR 1.002,95%CI 1.00-1.001,P=0.03)were identified as independent predictors of poor ***:Third cranial nerve involvement and the presence of basal exudates were significant indicators of a positive GeneXpert *** stageⅢdisability and elevated CSF cell counts predicted poor outcomes.

关键词： Tuberculous meningitis Mycobacterium tuberculosis Cerebrospinal fluid Ziehl-Neelsen staining GeneXpert

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 Novel Action Transformer Network for Hybrid Multimodal Sign Language Recognition

引用

Computers, Materials & Continua 2023年第1期74卷 523-537页

作者： Sameena Javaid Safdar rizvi Department of Computer Sciences School of Engineering and Applied SciencesBahria UniversityKarachi CampusKarachiPakistan

Sign language fills the communication gap for people with hearing and speaking *** includes both visual modalities,manual gestures consisting of movements of hands,and non-manual gestures incorporating body movements including head,facial expressions,eyes,shoulder shrugging,*** both gestures have been detected;identifying separately may have better accuracy,butmuch communicational information is *** sign language mechanism is needed to detect manual and non-manual gestures to convey the appropriate detailed message to *** novel proposed system contributes as Sign LanguageAction Transformer Network(SLATN),localizing hand,body,and facial gestures in video *** we are expending a Transformer-style structural design as a“base network”to extract features from a spatiotemporal *** impulsively learns to track individual persons and their action context inmultiple ***,a“head network”emphasizes hand movement and facial expression simultaneously,which is often crucial to understanding sign language,using its attention mechanism for creating tight bounding boxes around classified *** model’s work is later compared with the traditional identification methods of activity *** not only works faster but achieves better accuracy as *** achieves overall 82.66%testing accuracy with a very considerable performance of computation with 94.13 Giga-Floating Point Operations per Second(G-FLOPS).Another contribution is a newly created dataset of Pakistan Sign Language forManual and Non-Manual(PkSLMNM)gestures.

关键词： Sign language gesture recognition manual signs non-manual signs action transformer network

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

精索内静脉-腹壁下静脉双flow-through超引流技术治疗精索静脉曲张应用解剖

引用

中华实验外科杂志 2024年第4期41卷 840-842页

作者： S M Mahamudul Hassan rizvi 王莉沙米·艾合买提柳辉陈熹张之涵汪迎晖陶圣祥武汉大学中南医院创伤与显微骨科武汉430062 武汉市第六医院综合科武汉430014 武汉大学中南医院综合超声医学科武汉430062

目的观察成人腹壁下血管穿过腹股沟区域时的直径、血流速度、血管位置、血管长度,为精索静脉曲张双flow-through超引流技术提供解剖依据。方法2023年7月至2023年11月在武汉大学中南医院对30例年龄在20~30岁之间的成年男性进行B超检查,... 详细信息

目的观察成人腹壁下血管穿过腹股沟区域时的直径、血流速度、血管位置、血管长度,为精索静脉曲张双flow-through超引流技术提供解剖依据。方法2023年7月至2023年11月在武汉大学中南医院对30例年龄在20~30岁之间的成年男性进行B超检查,测量腹壁下静脉,腹壁浅静脉直径、血流速度,计量资料以均数±标准差(±s)表示,并进行文献查阅,查出腹壁下血管在腹股沟区域的走行及精索静脉曲张时的静脉管径及流速。并且在两具人体标本上进行精索内静脉-腹壁下静脉双flow-through超引流模拟手术,总结经验,得出较好的手术方法。组间比较采用t检验。结果通过B超测得的腹壁下动脉直径[(2.3±0.2)mm]大于腹壁浅动脉[(1.4±0.2)mm,t=10.312,P0.05],腹壁下静脉流速[(1.77±0.23)cm/s]小于腹壁浅静脉流速[(3.03±0.58)cm/s,t=-6.017,P<0.01]。结论精索静脉曲张腹壁下静脉双flow-through超引流技术临床应用价值较高。

关键词：精索静脉曲张静脉分流术显微外科腹股沟血管

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

Reflectometric and interferometric fiber optic sensor's principles and applications

引用

Frontiers of Optoelectronics 2019年第2期12卷 215-226页

作者： Muhammad Noaman ZAHID Jianliang JIANG Saad rizvi School of Optics and Photonics Beijing Institute of TechnologyBeijing 100081China

Fiber optic sensors have been widely used and studied in recent times. This paper presents operating principles and applications of fiber optic sensors namely reflectometric and interferometric fiber optic sensors. Majority of optical fiber sensors fall under these two broad categories. Both interferometric and reflectometric fiber optic sensors are becoming popular for their ease of use, flexibility, long distance sensing, and potentially noise free detection. Also, these sensors can easily be used in various applications such as structural health monitoring, perimeter intrusion detection, temperature monitoring, and other numerous applications. This paper broadly classifies fiber optic sensors into two subtypes. The paper further highlights different sensors based on their sensing resolution, range, spatial advantages, and applications.

关键词： fiber optic reflectometric interferometric optical fiber sensors sensor applications

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

Development of a Bias Compensating Q-Learning Controller for a Multi-Zone HVAC Facility

引用

IEEE/CAA Journal of Automatica Sinica 2023年第8期10卷 1704-1715页

作者： Syed Ali Asad rizvi Amanda J.Pertzborn Zongli Lin IEEE the Department of Electrical and Computer Engineering Tennessee Technological UniversityCookevilleTN 38505 USA the Mechanical Systems and Controls Group in the Building Energy and Environment Division at the National Institute of Standards and Technology(NIST) GaithersburgMD 20899 USA the Charles L.Brown Department of Electrical and Computer Engineering University of VirginiaCharlottesvilleVA 22904-4743 USA

We present the development of a bias compensating reinforcement learning(RL)algorithm that optimizes thermal comfort(by minimizing tracking error)and control utilization(by penalizing setpoint deviations)in a multi-zone heating,ventilation,and air-conditioning(HVAC)lab facility subject to unmeasurable disturbances and unknown *** is shown that the presence of unmeasurable disturbance results in an inconsistent learning equation in traditional RL controllers leading to parameter estimation bias(even with integral action support),and in the extreme case,the divergence of the learning *** demonstrate this issue by applying the popular Q-learning algorithm to linear quadratic regulation(LQR)of a multi-zone HVAC environment and showing that,even with integral support,the algorithm exhibits bias issue during the learning phase when the HVAC disturbance is unmeasurable due to unknown heat gains,occupancy variations,light sources,and outside weather *** address this difficulty,we present a bias compensating learning equation that learns a lumped bias term as a result of disturbances(and possibly other sources)in conjunction with the optimal control *** results show that the proposed scheme not only recovers the bias-free optimal control parameters but it does so without explicitly learning the dynamic model or estimating the disturbances,demonstrating the effectiveness of the algorithm in addressing the above challenges.

关键词： HVAC control optimal tracking Q-learning reinforcement learning(RL)

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

Interaction properties of solitons for a couple of nonlinear evolution equations

引用

Chinese Physics B 2021年第1期30卷 185-190页

作者： Syed Tahir Raza rizvi Ishrat Bibi Muhammad Younis Ahmet Bekir Department of Mathematics COMSATS University IslamabadLahore CampusPakistan Punjab University College of Information Technology University of the PunjabLahorePakistan Neighbourhood of Akcaglan Imarli Street Number 28/426030EskisehirTurkey

We study one-and two-soliton solutions for the Cahn–Allen(CA) equation and the Brethorton equation. The CA equation has broad spectrum of applications especially in anti-phase boundary motion and it is used in phase-field *** the Brethorton equation is a model for dispersive wave systems, it is used to find the resonant nonlinear interaction among three linear modes. We use the Hirota bilinear method to obtain one-and two-soliton solutions to the CA equation and the Brethorton equation.

关键词： Hirota bilinear method soliton interaction evolution equations

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

Vedolizumab for ulcerative colitis: Real world outcomes from a multicenter observational cohort of Australia and Oxford

引用

World Journal of Gastroenterology 2020年第30期26卷 4428-4441页

作者： Samba Siva Reddy Pulusu Ashish Srinivasan Krupa Krishnaprasad Daniel Cheng Jakob Begun CharlotteKeung Daniel Van Langenberg Lena Thin Tamara Mogilevski Peter De Cruz Graham Radford-Smith Emma Flanagan Sally Bell Soleiman Kashkooli Miles Sparrow Simon Ghaly Peter Bampton Elise Sawyer Susan Connor Quart-ul-ain rizvi Jane M Andrews Gillian Mahy Paola Chivers Simon Travis Ian Craig Lawrance Centre for Inflammatory Bowel Diseases St John of God HospitalSubiaco 6008Western AustraliaAustralia Translational Gastroenterology Unit NIHR Oxford Biomedical Research CentreOxford University Hospitals NHS Foundation TrustJohn Radcliffe HospitalOxford OX39DUUnited Kingdom Inflammatory Bowel Disease Research Group Queensland institute of Medical ResearchHerston 4006QueenslandAustralia Department of Gastroenterology Mater HospitalBrisbane 4101QueenslandAustralia Department of Gastroenterology Mater HospitalSouth Brisbane 4101QueenslandAustralia of Gastroenterology Eastern HealthBox Hill 3128VictoriaAustralia Department of Gastroenterology Fiona Stanley HospitalMurdoch 6150Western AustraliaAustralia Department of Gastroenterology Austin HealthHeidelberg 3084VictoriaAustralia Department of Gastroenterology St Vincent’s HospitalFitzroy 3065VictoriaAustralia Department of Gastroenterology Northern HealthEpping 3076VictoriaAustralia Department of Gastroenterology The Alfred HospitalMelbourne 3004VictoriaAustralia Department of Gastroenterology St Vincent’s HospitalDarlinghurst 2010New South WalesAustralia Department of Gastroenterology Flinders Medical CentreBedford Park 5042South AustraliaAustralia Department of Gastroenterology Liverpool HospitalSydney 2170New South WalesAustralia Department of Gastroenterology Royal Adelaide Hospital&University of AdelaideAdelaide 5000South AustraliaAustralia Department of Gastroenterology Townsville HospitalDouglas 4814QueenslandAustralia Institute for Health Research University of Notre DameFremantle 6160Western AustraliaAustralia School of Medicine and Pharmacology University of Western AustraliaCrawley 6009Western AustraliaAustralia

BACKGROUND Vedolizumab(VDZ),a humanised monoclonal antibody that selectively inhibits alpha4-beta7 integrins is approved for use in adult moderate to severe ulcerative colitis(UC)*** To assess the efficacy and safety of VDZ in the real-world management of UC in a large multicenter cohort involving two countries and to identify predictors of achieving *** A retrospective review of Australian and Oxford,United Kingdom data for UC *** response at 3 mo,endoscopic remission at 6 mo and clinical remission at 3,6 and 12 mo were *** regression models and Kaplan Meier curves were performed to assess the time to remission,time to failure and the covariates influencing *** outcomes were *** Three hundred and three UC patients from 14 centres in Australia and United Kingdom,[60%n=182,anti-TNF naïve]were *** clinical response was 79%at 3 mo with more Australian patients achieving clinical response compared to Oxford(83%vs 70%P=0.01).Clinical remission for all patients was 56%,62%and 60%at 3,6 and 12 mo ***-TNF naive patients were more likely to achieve remission than exposed patients at all the time points(3 mo 66%vs 40%Pulti-variate analysis,anti-TNF naïve patients were 1.8(95%CI:1.3-2.3)times more likely to achieve remission than anti-TNF exposed(P<0.001).32 patients(11%)had colectomy by 12 *** VDZ was safe and effective with 60%of UC patients achieving clinical remission at 12 mo and prior anti-TNF exposure influenced this outcome.

关键词： Vedolizumab ulcerative colitis Outcomes

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 priori, de novo mathematical exploration of gene expression mechanism via regression viewpoint with briefly cataloged modeling antiquity

引用

International Journal of Biomathematics 2017年第1期10卷 99-113页

作者： Shaurya Jauhari S. A. M. rizvi Department of Computer ScienceJamia MiUia Islamia Jamia Nagar Okhla New Delhi Delhi 110025 India

Various algorithms have been devised to mathematically model the dynamic mecha- nism of the gene expression data. Gillespie＇s stochastic simulation （GSSA） has been exceptionally primal for chemical reaction synthesis with future ameliorations. Several other mathematical techniques such as differential equations, thermodynamic models and Boolean models have been implemented to optimally and effectively represent the gene functioning. We present a novel mathematical framework of gene expression, under~ taking the mathematical modeling of the transcription and translation phases, which is a detour from conventional modeling approaches. These subprocesses are inherent to every gene expression, which is implicitly an experimental outcome. As we foresee, there can be modeled a generality about some basal translation or transcription values that correspond to a particular assay.

关键词： Gene expression method of least squares microarray normal equations regression transcriptioni translation.

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

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：