Search results for "36"

Valoración del alumnado sobre el uso de clickers y vídeo tutoriales en la educación superior

2019

La puesta en marcha de los grados y postgrados en las universidades españolas ha venido acompañada de una revisión de las metodologías docentes utilizadas y la incorporación en muchos casos de Tecnologías de la Información y la Comunicación (TIC). Tecnologías como las Herramientas de Respuesta de Audiencia (HRA), los Clickers, y los vídeos (mUVies) se utilizaron en una asignatura cuantitativa de un grado ofertado por la Universitat de València (UV), en un intento de paliar la baja carga lectiva de la misma y dotar al alumnado de material de apoyo dentro y fuera del aula. El trabajo que se presenta examina la percepción que el alumnado tuvo del uso de dichas TIC en su proceso de aprendizaje …

Embeddings of graph braid and surface groups in right-angled Artin groups and braid groups

2003

We prove by explicit construction that graph braid groups and most surface groups can be embedded in a natural way in right-angled Artin groups, and we point out some consequences of these embedding results. We also show that every right-angled Artin group can be embedded in a pure surface braid group. On the other hand, by generalising to right-angled Artin groups a result of Lyndon for free groups, we show that the Euler characteristic -1 surface group (given by the relation x^2y^2=z^2) never embeds in a right-angled Artin group.

VALUTAZIONE DEL GRASSO EPICARDICO MEDIANTE TC

2021

Quantificazione del grasso epicardico mediante TC del cuore: associazione con i fattori di rischio cardiovascolare e con l'aterosclerosi coronarica

2014

Come effettuare il calcolo del volume del grasso epicardico mediante software semiautomatico in pazienti sottoposti a TC del cuore

2014

Sensorineural Hearing Loss: Pathophysiology, Diagnosis and Treatment [Chapter 5. Neuroradiology of the Hearing System]

2019

Hearing loss is one of the most frequent indications for CT and MR examinations of the auditory system. Such a symptomatology is becoming increasingly common in today’s society and is extremely disturbing for patients. Causes may involve the auditory pathway at any level. In most cases, neuroradiological examinations represents a mandatory step, within a multidisciplinary workup, towards final diagnosis, therapeutic plan and subsequent follow-ups. This chapter will introduce this critical topic starting from an imaging-based exposition of the anatomy and function of the auditory system. The chapter will include some hints on the choice of the best imaging examination to perform on each pati…

Intrabiliary rupture of hepatic hydatid cyst: MRI findings

2016

Learning objectives Background Findings and procedure details Conclusion Personal information References

Long-term evolution of hepatocellular adenomas at MRI follow-up

2021

Background Hepatocellular adenomas (HCAs) are rare benign liver tumors. Guidelines recommend continued surveillance of patients diagnosed with HCAs, but these guidelines are mainly based on small studies or expert opinion. Purpose To analyze the long-term evolution of HCAs, including solitary and multiple lesions, and to identify predictive features of progression with MRI. Materials and Methods In a retrospective study, patients diagnosed with pathologically proven solitary or multiple HCAs between January 2004 and December 2015 were included; β-catenin-mutated HCAs and HCAs with foci of malignancy were considered to be at risk for progression. MRI examinations were analyzed, and tumor evo…

HPLC Determination of Polyphenols from Calendula officinalis L. Flowers

2017

Abstract Romanian spontaneous flora provides a lot of resources for the determination of different chemical compounds. This study uses flower samples from Calendula officinalis L. extracted through maceration. The chemical compounds determined were: (+)-catechin, caffeic acid, chlorogenic acid, cinnamic acid, ferulic acid, gallic acid, rutin, resveratrol and quercetin. They were analyzed by using an optimized HPLC method. (+)-Catechin, caffeic acid, chlorogenic acid and quercetin could not be identified in the analyzed samples. The greatest amount of phenolic compound found was rutin and the smallest quantity was determined for ferulic acid. The quantified compounds have proven to have bene…

WATCHING PEOPLE: ALGORITHMS TO STUDY HUMAN MOTION AND ACTIVITIES

2020

Nowadays human motion analysis is one of the most active research topics in Computer Vision and it is receiving an increasing attention from both the industrial and scientific communities. The growing interest in human motion analysis is motivated by the increasing number of promising applications, ranging from surveillance, human–computer interaction, virtual reality to healthcare, sports, computer games and video conferencing, just to name a few. The aim of this thesis is to give an overview of the various tasks involved in visual motion analysis of the human body and to present the issues and possible solutions related to it. In this thesis, visual motion analysis is categorized into thr…