ADOPTION OF TECHNOLOGICAL INNOVATIONS BY SPORTS SPECTATORS

In the paper "Adoption of technological innovations by sports spectators" we make a brief analysis of the importance of technology in sports and in the fans' experience, and in the last part a technology used by both athletes and fans is presented, which is revolutionizing the sports field. Just as it happens in any other field, in the case of professional sports, modern technology has produced important changes. And if we think about everyday life, instead of going up the stairs, you use the elevator, instead of writing on paper, you use your computer or laptop at the office, the phone, you pay with a card when you go to the table. Technology becomes part of our lives once we come into contact with it, so it is normal to see the world of professional sports very interested in new technologies. We already see many of these technologies in tennis, where the ball can be tracked with amazing precision, in football, where we have the replay and detailed analysis of any movement made by the players on the field. Others are there, but not so well know

SPORT FANS USAGE OF FITNESS APPS

We spend more time at home, but above all, health is a priority. And because exercise is part of a balanced lifestyle, here are mobile sports apps to help you exercise and exercise at home. When the weather outside is not friendly to be able to exercise outdoors or when it is recommended to stay indoors for a long period, as was the case in past years, to prevent the spread of the COVID-19 virus, we must not give up to physical exercises, but we have to find alternative solutions. Here's the best alternative for outdoor exercise: mobile sports apps that help you exercise at home. In the paper "Sport fans usage of fitness Apps" we have presented a brief history of the appearance of fitness applications, a summary of the advantages and disadvantages of these applications and a short description of two studies carried out in this field of sports application

Diagnosis System for Hepatocellular Carcinoma Based on Fractal Dimension of Morphometric Elements Integrated in an Artificial Neural Network

Background and Aims. Hepatocellular carcinoma (HCC) remains a leading cause of death by cancer worldwide. Computerized diagnosis systems relying on novel imaging markers gained significant importance in recent years. Our aim was to integrate a novel morphometric measurement—the fractal dimension (FD)—into an artificial neural network (ANN) designed to diagnose HCC. Material and Methods. The study included 21 HCC and 28 liver metastases (LM) patients scheduled for surgery. We performed hematoxylin staining for cell nuclei and CD31/34 immunostaining for vascular elements. We captured digital images and used an in-house application to segment elements of interest; FDs were calculated and fed to an ANN which classified them as malignant or benign, further identifying HCC and LM cases. Results. User intervention corrected segmentation errors and fractal dimensions were calculated. ANNs correctly classified 947/1050 HCC images (90.2%), 1021/1050 normal tissue images (97.23%), 1215/1400 LM (86.78%), and 1372/1400 normal tissues (98%). We obtained excellent interobserver agreement between human operators and the system. Conclusion. We successfully implemented FD as a morphometric marker in a decision system, an ensemble of ANNs designed to differentiate histological images of normal parenchyma from malignancy and classify HCCs and LMs