30 research outputs found
An adaptive sensorimotor representation for reaching in the inferior parietal lobule of behaving monkeys
No full textPrimates use visual guidance in order to interact with their environment. For several decades, the inferior parietal lobule (IPL) has been known to contain neurons that respond to visual stimulation and motor behavior. While the neural activity during the reaching behavior has been shown in area 7a of IPL, reach related neural responses have never been tested in the dorsal prelunate area (DP) of IPL, which is adjacent to area 7a. Furthermore, neural response prior to the reaching movement has not been assessed in DP and area 7a. The first aim was to investigate the tuning properties of single neurons in DP and area 7a. The second aim was to assess the influence of eye position signal on reaching behavior. Third, the temporal evolution of sensorimotor transformation in area 7a and DP neurons was investigated by comparing neural signals throughout the reaching task. Lastly, cortical plasticity was tested using Fresnel prisms, which displaced the visual field by 12º in one of four directions: contralateral, ipsilateral, upwards, or downwards. Foveal and peripheral reaching tasks and reaching under perceptually distorted conditions were used. Neurons in area 7a and DP were observed to have differential tuning properties during the planning phase and the initiation of the reach, in addition to being selective for eye position and retinal visual stimulation. The response properties of the neurons in areas 7a and DP changed as the trial progressed in time. Differential preparatory and reach responses were observed during foveal and peripheral reaching. This implies that both eye position and retinal signals modulated the reach related responses. Alterations in spatial tuning of the neurons during all phases of the task were observed upon insertion of the Fresnel prisms imply that neural plasticity occurs as the cortex swiftly adapts to the mismatch between sensory input and motor output. The spatial tuning of the neurons did not merely compensate for the eye position shift implying that signals other than eye position affect the neural response during reaching. These combined results strongly support the claim that crucial aspects of sensorimotor transformation occur in areas 7a and DP.Ph.D.Includes bibliographical referencesIncludes vitaby Anushree Karni
An approach to Enhance the software and services of Health care centre
No full textIn this paper we are suggesting software applications based on Internet protocol infrastructure for healthcare center in UK. For suggesting software applications we are considering a case study. And in this case study a company named XYZ is any arbitrary UK healthcare center for which we will suggest software’s after studying its environment and operations. Implementing these new software applications will enhance its previous system working processes. Manual work will also be reduced. Our objective is to provide professional commercial software applications based on IP (Internet Protocol) infrastructure. Implementing our approach will provide more effective and efficient services at lower cost. Keywords: e-business, healthcare centre, ROI (return on investment), Equipment Management System, Content management systems (CMS
Smart ambulance traffic management system (SATMS)—a support for wearable and implantable medical devices
No full text
Commitment of Traders Report: Angular-Based Graph Representation (Agriculture Contracts)
No full textWeb Technology Systems Integration Using SOA and Web Services
No full textThis chapter presents an overview of service-oriented architecture and web technologies with the objective of presenting challenging issues concerned with various aspects of integrating heterogeneous web applications. </jats:p
Analysis of Issues in SDN Security and Solutions
No full textThe chapter surveys the analysis of all the security aspects of software-defined network and determines the areas that are prone to security attacks in the given software-defined network architecture. If the fundamental network topology information is poisoned, all the dependent network services will become immediately affected, causing catastrophic problems like host location hijacking attack, link fabrication attack, denial of service attack, man in the middle attack. These attacks affect the following features of SDN: availability, performance, integrity, and security. The flexibility in the programmability of control plane has both acted as a bane as well as a boon to SDN. Like the ARP poisoning in the legacy networks, there are several other vulnerabilities in the SDN architecture as well. </jats:p
Selected topics in interventional radiology: a compendium of student honors papers on the Interventional radiology elective
No full textThis book is a collaborative effort with medical students from the Rutgers/Robert Wood Johnson Medical School, previously Robert Wood Johnson Medical School. The students contributed chapters written as honors papers,while on their Interventional Radiology elective. This publication is not meant to completely cover the ever expanding realm of interventional radiology but includes topics of interest to the students while on their elective. It has been rewarding to work with these amazing students, many of whom have elected to practice diagnostic and interventional radiology. This work was supported by a small grant from the Rutgers Library to create affordable books. As it is self published please overlook minor flaws.
The newest area of interventional radiology, interventional oncology, will be covered in subsequent chapters as they are written. As with other dynamic fields of medicine some material becomes outdated soon after it is written. As this is an electronic publication we will strive to update chapters as required.Central venous access in interventional radiology / Daniel Haddad, Mary-Katherine Lynch
Image -guided percutaneous needle biopsy / Ross Cadman
Image -guided percutaneous
abscess drainage of abdominal and pelvic abscess / Zaeem Billah, Dhaval Mehta
Interventional radiology approaches for the treatment of refractory ascites / Travis R. Quinoa
Radial artery access in interventional radiology / Lauren A. Huntress
Segmental arterial mediolysis / Julian Sison
Hemodialysis vascular access, complications, and interventional treatment / Pierre Saad
Non-operative management of splenic injury / Ulyana Trytko
Management of splenic artery aneurysm with coil embolization / Henal Patel
The use of arterial embolization in pelvic trauma / Henal Patel, Rima Patel
Management of massive hemoptysis with bronchial artery embolization / Shreya Amin
Minimally invasive approach
to treating renal angiomyolipoma / Adam Zybulewski
Pulmonary arteriovenous malformations / Ripal Patel, Michael Chevinsky
Radiologic and endoscopic percutaneous gastrostomy: a review of the literature / Fernando D. Arias
Treatment of benign bile duct strictures by balloon dilitation and stent placement / Jason Feinman
Transjugular liver biopsy / Oluwatoyin Dada
Point shear/wave liver elastography / Eric Wei
Renal artery stenosis: medical management vs. percutaneous revascularization / Adjoa Boateng, Gregg Khodorov
Minimally invasive treatment of intrahepatic cholangiocarcinoma / Jaclyn N. Portelli Tremont
Vena cava filters
and the treatment of pulmonary embolism / Anushree Doshi
Interventional treatment of pulmonary embolism / Matthew Deek
Percutaneous access for nephrostomy and nephro-lithotomy / Prasann Vachhani
Portal vein embolization and hepatic hypertrophy / Kristin Maletsky
THe role of interventional radiology in upper GI and colonic hemorrhage
contemporary management and outcomes / Slavamir Sokalaw
Small intestinal bleeding / Oren Johnson
Gastrointestinal hemorrhage aorto-enteric fistula / Hansol Kim
Management of non-variceal upper gastrointestinal bleeding in patients with liver cirrhosis / Vikram Rajpurohit
Transjugular intrahepatic portosystemic shunt / Na Eun Kim
Review and analysis of balloon-occluded retrograde transvenous obliteration (BRTO ) vs. transjugular intrahepatic porto-systemic shunt (TIPS) procedures as a treatment for gastric varices / Iqra Farooqi , Kiersten Frenchu
The value of multi-detector helical CT (MDCT) scans in evaluating acute gastro-intestinal bleeding"September 2020
Combined stent-retriever and aspiration intra-arterial thrombectomy performance for fragmentable blood clots: A proof-of-concept computational study
No full textMechanical thrombectomy (MT) treatment of acute ischemic stroke (AIS) patients typically involves use of stent retrievers or aspiration catheters alone or in combination. For in silico trials of AIS patients, it is crucial to incorporate the possibility of thrombus fragmentation during the intervention. This study focuses on two aspects of the thrombectomy simulation: i) Thrombus fragmentation on the basis of a failure model calibrated with experimental tests on clot analogs; ii) the combined stent-retriever and aspiration catheter MT procedure is modeled by adding both the proximal balloon guide catheter and the distal access catheter. The adopted failure criterion is based on maximum principal stress threshold value. If elements of the thrombus exceed this criterion during the retrieval simulation, then they are deleted from the calculation. Comparison with in-vitro tests indicates that the simulation correctly reproduces the procedures predicting thrombus fragmentation in the case of red blood cells rich thrombi, whereas non-fragmentation is predicted for fibrin-rich thrombi. Modeling of balloon guide catheter prevents clot fragments' embolization to further distal territories during MT procedure.Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Biomechatronics & Human-Machine ControlMedical Instruments & Bio-Inspired Technolog
