An assisted navigation method for telepresence robots

Telepresence robots have emerged as a new means of interaction in remote environments. However, the use of such robots is still limited due to safety and usability issues when operating in human-like environments. This work addresses these issues by enhancing the robot navigation through a collaborative control method that assists the user to negotiate obstacles. The method has been implemented in a commercial telepresence robot and a user study has been conducted in order to test the suitability of our approach.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Análisis bibliométrico de la producción científica peruana en cardiología y medicina cardiovascular

Objective. To determine the characteristics and trend of the articles published on cardiology and cardiovascular medicine in the Peruvian context, and to understand how it has changed over the years. Materials and methods. A bibliometric study of original articles published up to 2020 by Peruvian authors in journals indexed under the category “Cardiac & Cardiovascular Systems” in Web of Science (WOS) was performed. The articles were included according to the selection criteria in the Rayyan web application and the bibliometric analysis was performed using the Bibliometrix package in the R programming language and VOSviewer. Results. A total of 159 published articles were included, and an increase in the number of publications since 2015 was observed. The most cited article was a clinical trial by Fitchett et al. and published in 2016. Miranda JJ was the Peruvian author with the highest number of published articles followed by Hernández AV and Málaga G. The institutional affiliation with the highest number of original articles was Universidad Peruana Cayetano Heredia. Regarding the terms or keywords, it was found that most of the published studies had terms related to epidemiology, while in the most recent articles, the terms were related to outcomes or specific interventions that are used in clinical studies. Conclusions. In the last five years, there has been an increase in the scientific production on cardiology and cardiovascular medicine by authors with Peruvian institutional affiliation, with a greater production from the Universidad Peruana Cayetano Heredia. The journal with the highest number of publications by authors with Peruvian institutional affiliation on cardiology and cardiovascular medicine was Circulation, where two of the most cited articles with Peruvian institutional affiliation were also found.Objetivo. Determinar las características y la tendencia de los artículos publicados sobre cardiología y medicina cardiovascular en el contexto peruano, y comprender cómo ha cambiado a lo largo de los años. Materiales y métodos. Se realizó un estudio bibliométrico de artículos originales publicados hasta el año 2020 por autores peruanos en revistas indexadas bajo la categoría «Cardiac & Cardiovascular Systems» en Web of Science (WOS). Se incluyeron los artículos según los criterios de selección en el aplicativo web Rayyan y se realizó el análisis bibliométrico mediante el paquete Bibliometrix en el lenguaje de programación R y VOSviewer. Resultados. Se incluyeron 159 artículos publicados, y se observó un incremento del número de publicaciones desde 2015. El artículo más citado fue un ensayo clínico realizado por Fitchett et al. y publicado en 2016. Miranda JJ fue el autor peruano con mayor número artículos publicados seguido de Hernández AV y Málaga G. La filiación institucional con mayor número de artículos originales fue la Universidad Peruana Cayetano Heredia. En cuanto a los términos o palabras clave, se encontró que la mayor cantidad de estudios publicados contaban con términos relacionados con la epidemiología, mientras que en los artículos más recientes, los términos se relacionaron con desenlaces o intervenciones específicas que son utilizados en estudios clínicos. Conclusiones. Se encontró un incremento en los últimos cinco años en la producción científica sobre cardiología y medicina cardiovascular de autores con filiación institucional peruana, con una mayor producción de la Universidad Peruana Cayetano Heredia. La revista con mayores publicaciones de autores con filiación institucional peruana sobre cardiología y medicina cardiovascular fue Circulation, donde también se encontraron dos de los artículos con filiación institucional peruana más citados

Developing novel technologies and services for intelligent low voltage electricity grids: cost–benefit analysis and policy implications

The paper presents a set of prototype smart grid technologies and services and validates the economic viability of the proposed solution using cost–benefit analysis (CBA). The study considered the EU-funded project called RESOLVD and implemented the technologies and services in a real-life pilot. the technologies and services on the EU-funded H2020. The paper focuses on the analysis of technological solutions which enhance the operational efficiency and the hosting capacity of low-voltage electricity distribution grids. The solutions provided better integration of a hybrid battery storage system, with the grid interfacing power electronics, smart gateways for the interconnection of assets at the grid edge, and sensors enhancing infrastructure observability and control. The result from the CBA indicates the economic viability of the project, high scalability, and replicability. The economic benefits were realized with the breakeven value of eight secondary substations (SS) and 16 feeders. The scenario test on the DSO’s willingness to pay for the software as a service (SaaS) revealed that the payback period can further be reduced by almost half with a higher internal rate of return (IRR) and net present value (NPV). Both the CBA and scenario tests showed RESOLVD solution can become more economically viable when deployed in largescale. Moreover, the CBA results provide evidence to the energy policy by allowing DSOs to consider both CAPEX and OPEX for better investment decisions. Further, the paper proposes an alternative business approach that shifts from grid reinforcement to service provision. The paper also discusses the research implications on energy policy and business.Peer ReviewedObjectius de Desenvolupament Sostenible::9 - Indústria, Innovació i InfraestructuraObjectius de Desenvolupament Sostenible::11 - Ciutats i Comunitats SosteniblesPostprint (published version

Estudio preliminar sobre la utilidad del color para clasificar los zumos de naranja según su elaboración

En este trabajo se caracteriza el color de los zumos de naranja comerciales y se explora la utilidad de las coordenadas cromáticas CIELAB para clasificarlos según el proceso de elaboración. 41 muestras de zumos comerciales 15 de ellos procedentes de zumo a base de concentrado (ZC) y 26 procedentes de naranjas exprimidas (ZE) fueron analizadas por espectrorradiometría. Se observaron diferencias significativas en todos los parámetros colorimétricos (p<0, 05) excepto para la coordenada L*. Los zumos procedentes de concentrado (ZC) presentaron un valor medio de croma de 63, 78±2, 36 y de tono 83, 42±2, 10, mientras que los zumos procedentes de naranjas exprimidas (ZE) presentaron mayores valores de croma (C* ab=73, 11±2, 62) y menores de tono (hab=80, 87º±1, 68º). Con el objetivo de determinar qué variables permiten clasificar los zumos según su proceso de fabricación, se realizó un análisis discriminante. Las mejores predicciones se obtuvieron para los modelos que incluían las variables L* y C* ab. La aplicación de las funciones discriminantes obtenidas a un set de 25 muestras de test, produjo un porcentaje de acierto del 100%.In this study the colour of commercial orange juices has been characterized and the utility of CIELAB colour coordinates to classify them according to their processing has been investigated. 41 samples of commercial orange juices, 15 from concentrate (ZC) and 26 from squeezed oranges (ZE) were analyzed by spectroradiometry. Significant differences were obtained in all colorimetric parameters (p<0.05) except for the coordinate L* . Juices made from concentrate (ZC) showed an average value for chrome of 63.7±2.36 and for hue 83.42±2.10, while squeezed orange juices (ZE) showed higher chrome values (C* ab=73.11±2.62) and lower hue values (hab=80.87º±1.68º). Discriminant analysis was performed with the aim of selecting the variables which allows the classification of the juices according to their manufacturing process. The best predictions were obtained for the models which included L* and C* ab variables. The application of the discriminant functions to a set of 25 juices, resulted in a 100% of correct classifications.Junta de Andalucía P08-AGR-0378

Late myocardial reperfusion in ST-elevation myocardial infarction: Protocol for a systematic review and meta-analysis

Introduction ST-segment elevation myocardial infarction (STEMI) is the most severe clinical form of acute myocardial infarction, for which the current treatment consists of effective and timely myocardial reperfusion (within 12 hours of symptom onset). However, between 10% and 15% of patients with STEMI arrive at hospital facilities 12 hours after the onset of symptoms (late presentation). Therefore, the objective of the present study will be to determine if late revascularisation (12-72 hours after the onset of symptoms) affects the indicators of cardiovascular mortality, reinfarction, recurrent infarction, hospitalisation for heart failure and post infarction angina compared with no late revascularisation in patients with STEMI. Methods and analysis A systematic literature search of PubMed, The Cochrane Library, Embase, Cumulative Index to Nursing and Allied Health Literature (CINAHL), Web of Science, Scopus and Global Health will be conducted. Publications in English, Portuguese or Spanish that report the clinical results of primary percutaneous revascularisation (primary PCI) in adult patients with STEMI 12-72 hours after the onset of symptoms will be included. Studies with participants with a diagnosis other than STEMI or patients with STEMI of >12 hours complicated by heart failure, cardiogenic shock or ventricular arrhythmias, and studies of combined interventions (pharmacoinvasive strategy) were excluded. Two independent authors will identify the relevant publications, and discrepancies will be adjudicated by a third author. Data extraction will be performed by two independent authors and verified by a third author. Risk of bias of studies will be assessed using the Cochrane risk of bias' tool (RoB 2) or Risk Of Bias In Non-randomised Studies - of Interventions (ROBINS-I) tool. If appropriate, a meta-analysis will be performed in order to examine the effect of late revascularisation in clinical outcomes of interest. Ethics and discussion This study will use published data only, thus, ethical approval will not be required. The results will be disseminated through peer-reviewed publication and conference presentations. PROSPERO registration number CRD42021283429.Revisión por pare

Utilidad del color para clasificar los zumos de naranja según su elaboración

En este trabajo se caracteriza el color de los zumos de naranja comerciales y se explora la utilidad de las coordenadas cromáticas para diferenciarlos según su proceso de elaboración. Se concluye que es posible la discriminación de los zumos elaborados a base de concentrado de los procedentes de naranjas exprimidas, a partir de los parámetros L* y C*ab.Consejería de Innovación, Ciencia y Empresa (Junta de Andalucía): proyecto P08- AGR-0378

Integration of embedded data processing algorithms inside PAMELA devices

PAMELA (Phased Array Monitoring for Enhanced Life Assessment) SHMTM System is an integrated embedded ultrasonic guided waves based system consisting of several electronic devices and one system manager controller. The data collected by all PAMELA devices in the system must be transmitted to the controller, who will be responsible for carrying out the advanced signal processing to obtain SHM maps. PAMELA devices consist of hardware based on a Virtex 5 FPGA with a PowerPC 440 running an embedded Linux distribution. Therefore, PAMELA devices, in addition to the capability of performing tests and transmitting the collected data to the controller, have the capability of perform local data processing or pre-processing (reduction, normalization, pattern recognition, feature extraction, etc.). Local data processing decreases the data traffic over the network and allows CPU load of the external computer to be reduced. Even it is possible that PAMELA devices are running autonomously performing scheduled tests, and only communicates with the controller in case of detection of structural damages or when programmed. Each PAMELA device integrates a software management application (SMA) that allows to the developer downloading his own algorithm code and adding the new data processing algorithm to the device. The development of the SMA is done in a virtual machine with an Ubuntu Linux distribution including all necessary software tools to perform the entire cycle of development. Eclipse IDE (Integrated Development Environment) is used to develop the SMA project and to write the code of each data processing algorithm. This paper presents the developed software architecture and describes the necessary steps to add new data processing algorithms to SMA in order to increase the processing capabilities of PAMELA devices.An example of basic damage index estimation using delay and sum algorithm is provided

Late Holocene archaeobotanical evolution of the Canale di Imbocco (Roman imperial port of Portus, Central Italy)

The Roman port of Portus was the most important in the Mediterranean during the imperial period (27 BC–476 AD). It wasmade up of an outer port or Claudius basin and an inner hexagon or Trajan's port, joined by the Canale di Imbocco. The archaeobotanical record obtained in a continuos sediment core taken in this channel ismade up of 19 types of plant macroremains, with a predominance of fibers of the seagrass Posidonia oceanica L., replaced by fluvial sediments in the upper part of the core. Seeds, fruits and thorns of aquatic species frommarine or brackish waters, halophyte species, edible species, freshwater riparian vegetation and remains of charcoal and wood also appear regularly. According to the inferred palaeoenviromental evolution of this core, Portus was an area of fluvial-marine interaction during the Roman Empire, with brackish water conditions interrupted by stormy periods deduced from the record of P. oceanica. The archaeobotanical and sedimentary evolution points to a restriction of marine contributions and a final implantation of a fluvial environment. In this evolution, a specific interval with abundant charcoal and caryopses of Triticum could correspond to a fire, which was followed by a possible period of greater construction activity linked with large fragments of wood.This paper was jointly supported by the following projects: a) project DGYCIT CTM2006-06722/MAR; b) DGYCIT project CGL2006-01412; c) “From the Atlantic to the Mediterranean (DEATLANTIR): Research in the infrastructures of Portus-Ostia Antica: the Lanterna wharf” (Programme of Archeology Projects Abroad, Ministry of Culture and Sports); d) From the Atlantic to the Tyrrhenian. Hispanic ports and their commercial relations with Ostia Antica (DEATLANTIR II - HAR2017-89154-P - (National R&D Plan)); and e) FEDER project 2014-2020 UHU-1260298. Other funds come from the research groups HUM-132, RNM-238 and RNM-293 (P.A.I.D.I). It is a contribution to the Center for Research in Historical, Cultural and Natural Heritage of the University of Huelva. The archaeobotanical record is deposited in the Laboratory of Paleontology and Applied Ecology of the University of Huelva

Sediments as Sentinels of Pollution Episodes in the Middle Estuary of the Tinto River (SW Spain)

Estuaries are excellent environments for identifying pollution episodes that have affected river basins, as their sediments are the final destination of some of the pollutants. This paper studies the geochemical evolution of five elements (As, Co, Cu, Pb, Zn) in a core extracted from the middle estuary of the Tinto River (SW Spain). The results are based on facies interpretation, ICP atomic emission spectrometry analysis, the application of a regional background to obtain the geoaccumulation index and dating. The main objective of this communication is the detection of natural or anthropogenic pollution episodes in the middle estuary of the Tinto River (SW Spain). Four pollution episodes have been detected: (1) ~5.8 cal. kyr BP, probably caused by natural acid rock drainage processes derived from the oxidation of the Iberian Pyritic Belt deposits found in its drainage basin; (2) 4.7–4.5 kyr BP, coming from the first mining activities and characterized by a significant increase in the concentrations of the five elements analyzed; (3) 1850–1960 interval, coinciding with intensive mining and characterized by increasing values of As and, to a lesser extent, Pb (intensive mining); and (4) the second half of the 20th century, with high element concentrations from mining and industrial effluents. All episodes show an increase in their geochemical classes deduced from the geoaccumulation index. This communication can serve as an example for assessing the impact of different types of pollution in estuarine environments.This study was mainly financed by the Palos de la Frontera Council. It was also carried out through the following projects: (a) DGYCIT project CTM2006-06722/MAR; (b) DGYCIT project CGL2006-01412; (c) Roman cities of the Baetica, CORPVS VRBIVM BAETICARVM (I) (CUB) (Andalusian Government); (d) From the Atlantic to the Tyrrhenian, the Hispanic ports and their commercial relations with Ostia Antica, DEATLANTIR II—HAR2017-89154-P (Plan Nacional de I + D + i); and (e) FEDER 2014–2020 project UHU-1260298. Other funds have come from the Andalusian Government (groups HUM-132, RNM-238, and RNM-293). It is a contribution to the Research Center in Historical, Cultural and Natural Heritage (CIPHCN) of the University of Huelva