Search results for "Computer Science"

Systemic Review: Ozone: A Potential New Chemotherapy

2021

In the last sixty years, publications in reputed journals have shown the preclinical positive effect of ozone gas in cancer cells. However, the translation of these results into clinical practice is far away from success. A comprehensive approach is necessary for this, and oncologists and researchers need guidance from medical specialists with in-depth knowledge of ozone in medicine. In this article, we review the evidence around this question and suggest different potential research lines to those interested in this exciting field.

Synchronization index for quantifying nonlinear causal coupling between RR interval and systolic arterial pressure after myocardial infarction

2002

The analysis of nonlinear couplings among cardiovascular variability series can improve the knowledge of the cardioregulatory mechanism and help to understand how it can be affected by pathologies. In this study, the influences of acute myocardial infarction (AMI) on the causal relationships between the heart period and the arterial pressure were investigated by a nonlinear dynamic approach based on the corrected cross-conditional entropy. Whereas the global synchronization index did not differentiate the post-AMI patients from the young and old control groups, the causal indexes evidenced the impairment of the baroreflex control and showed an increase of the mechanical driving of the RR in…

JS-5 Application of Surgery for Elderly RCC Patients : How Far Should it Go?(JUA/UAA/AUA/EAU Joint Session 5)

2010

Biomechanical evaluation of a new treatment method for distal tibia fractures

2015

Distal tibial fractures are often the result of high-energy impacts combined with excessive soft tissue injury. Treatment options include either open reduction and internal fixation usually as a mi...

Snapshot Spectral Imaging

2018

This chapter describes an application of the spline-based wavelet frames to the spectral imaging. It presents a method that enables to convert a regular digital camera into a snapshot spectral imager by equipping the camera with a dispersive diffuser and with a compressed sensing-based algorithm for digital processing. The method relies on the assumption that typical images can be sparsely represented in the frame domain. The solution is found from the constrained \(l_{1}\) minimization of a functional by Bregman iterations. Results of optical experiments are reported. The chapter is based on the paper (Golub et al., Appl. Opt. 55, 432–443, (2016), [11]).

Foot Orthosis in Running

2019

Abstract Foot orthosis is a popular strategy for runners aiming to reduce the injury risk and improve performance in running. Companies of foot orthosis claim for a high number of benefits, however, the literature is controversy in many aspects and there are not systematic results because of the use of them. The aim of this chapter is, firstly, to introduce the reader about the concept of foot orthosis and its different definitions and types. Secondly, to show the most important scientific literature about its biomechanical and physiological effects during running. These biomechanical and physiological effects were divided into the following sections in order to be clear for the reader: kin…

PNPLA3 polymorphism influences liver fibrosis in unselected patients with type 2 diabetes

2011

Context: Recently, it has been shown that an allele in the adiponutrin (PNPLA3) gene was strongly associated with increased liver fat content (LFC) and liver fibrosis independent of visceral adiposity and insulin resistance. Objective: In this study, we set out to determine whether the PNPLA3 rs738409 polymorphism was associated with liver fibrosis in unselected patients with type 2 diabetes. Design, setting and participants: Two hundred and thirty-four patients with type 2 diabetes were included in this study. Main outcome measures: LFC was evaluated using 1H-MR spectroscopy; fibrosis was measured using the non-invasive FibroTest®. Results: Advanced liver fibrosis (stage F2 or above) was o…

Modelling cardiac mechanics of left ventricular noncompaction

2020

Left ventricular noncompaction (LVNC) can be defined as a cardiomyopathy characterised by a pattern of prominent trabecular structure and deep intertrabecular recesses, that is thought to be caused by an arrest of normal endomyocardial morphogenesis. Using patient-specific computational modelling, we assessed the cardiac mechanics of five patients with LVNC and compared myocardial stress and pump performance to those of healthy controls. Findings shown that patients with LVNC have impaired left ventricular (LV) function, making it possible that the lack of fibre shortening of noncompacted layer can determine poor heart function. Pronounced end-systolic wall stress on left ventricular wall o…

Postoperative Lens Position Preoperatively Determined by Scheimpflug Photography

1999

The position of the artificial lens has an important influence on refractive power calculation. We compared the position of the crystalline lens with that of the artificial lens after cataract surgery by means of Scheimpflug photography. A difference in position of approximately 0.8 mm in the anterior direction could be determined.

Tree Species Identification Using 3D Spectral Data and 3D Convolutional Neural Network

2018

In this study we apply 3D convolutional neural network (CNN) for tree species identification. Study includes the three most common Finnish tree species. Study uses a relatively large high-resolution spectral data set, which contains also a digital surface model for the trees. Data has been gathered using an unmanned aerial vehicle, a framing hyperspectral imager and a regular RGB camera. Achieved classification results are promising by with overall accuracy of 96.2 % for the classification of the validation data set. nonPeerReviewed