Sistema de lubricación automático en el sector minero: una revisión sistemática entre los años 2011-2020

La presente revisión sistemática recopilo información sobre el sistema de lubricación automático. El objetivo del presente trabajo es conocer los principales beneficios de los sistemas de lubricación automático en las empresas del sector minero, a partir de análisis de artículos de investigación. A través de los distintos repositorios se recopilo información desde lo general hasta lo particular, agrupando 23 artículos académicos sobre el tema de estudio, seleccionando 19 artículos científicos, asimismo se investigaron artículos de 3 países, 1 investigación en España, 1 en Colombia y 17 artículos científicos de Perú, también se afirma que el 100% de los artículos fueron de los últimos 10 años. (2011 – 2020), en total se consultaron 9 repositorios académicos, de universidades internacionales y especializadas como: Alicia, Concytec, Doaj, Proquest, Renati – Sunedu, Scielo, Scopus Uned, UP Commons. Todos los datos informativos, fueron de gran utilidad para conocer que el sistema de lubricación automático, es una sustancia fluida que una vez aplicada entre dos o más partes mecánicas o movibles no se van desgastando y a su vez posibilita la creación de un contacto directo entre cada pieza para que puedan ser utilizadas o funcionen a temperaturas elevadas y/o presión

Posibles reformas al Proceso Civil en materia de incidentes

En la mayoría de las veces esas cuestiones constituyen un antecedente lógico y jurídico de la decisión, luego en estos eventos su examen y resolución debe ser anterior a la Sentencia; en otros casos la Ley permite que sean resuelías en la misma sentencia junto con el pronunciamiento sobre el fondo del litigio.In most of the times these issues constitute a logical and legal precedent of the decision, then in these events their examination and resolution must be prior to the Judgment; in other cases, the Law allows them to be resolved in the same sentence together with the ruling on the merits of the litigation

Frequency-Sliding Generalized Cross-Correlation: A Sub-band Time Delay Estimation Approach

The generalized cross correlation (GCC) is regarded as the most popular approach for estimating the time difference of arrival (TDOA) between the signals received at two sensors. Time delay estimates are obtained by maximizing the GCC output, where the direct-path delay is usually observed as a prominent peak. Moreover, GCCs play also an important role in steered response power (SRP) localization algorithms, where the SRP functional can be written as an accumulation of the GCCs computed from multiple sensor pairs. Unfortunately, the accuracy of TDOA estimates is affected by multiple factors, including noise, reverberation and signal bandwidth. In this paper, a sub-band approach for time delay estimation aimed at improving the performance of the conventional GCC is presented. The proposed method is based on the extraction of multiple GCCs corresponding to different frequency bands of the cross-power spectrum phase in a sliding-window fashion. The major contributions of this paper include: 1) a sub-band GCC representation of the cross-power spectrum phase that, despite having a reduced temporal resolution, provides a more suitable representation for estimating the true TDOA; 2) such matrix representation is shown to be rank one in the ideal noiseless case, a property that is exploited in more adverse scenarios to obtain a more robust and accurate GCC; 3) we propose a set of low-rank approximation alternatives for processing the sub-band GCC matrix, leading to better TDOA estimates and source localization performance. An extensive set of experiments is presented to demonstrate the validity of the proposed approach.Comment: Article accepted in IEEE/ACM Transactions on Audio, Speech, and Language Processin

Good practices in prevention and occupational health training for workers in the workplace: a systematic review

El artículo presenta los resultados de una investigación promovida por el Instituto Nacional de Seguridad e Higiene en el Trabajo (Ministerio de Trabajo e Inmigración, España) sobre evidencias científicas de buenas prácticas en materia de formación en prevención de riesgos laborales a trabajadores en las empresas. La investigación ha tomado como referencia para definir el concepto de buena práctica en prevención la de considerar como tal toda forma innovadora de actuación profesional capaz de aportar mejoras relevantes, en términos de efectividad o de pertinencia, y que es susceptible de ser transferida a un ámbito general. Mediante un diseño de investigación ecléctico, que bebe de la orientación metodológica de las revisiones sistemáticas pero que es además complementado con el valioso recurso del asesoramiento experto, se han recopilado, sintetizado y analizado un buen número de hallazgos bibliográficos que en unos casos vienen a confirmar mediante la experimentación didáctica, hipótesis o suposiciones previas que veníamos barajando desde hace años, mientras que en otros interpelan directamente al técnico de prevención y al formador de hoy a revisar algunos de sus planteamientos más tradicionales. Este trabajo es considerado como un paso previo para poder llegar a conseguir un Código de Buenas Prácticas que pueda servir como punto de referencia para la mejora de la actividad profesional en esta materia.This article presents the results of a research sponsored by the National Institute of Occupational Safety and Health at Work (Ministry of Labour and Immigration, Spain) on scientific evidence of good practices in training on the prevention of occupational hazards to workers in companies. To define the concept of good practices in prevention, this research has considered as such all innovative professional performance capable of providing significant improvements in terms of effectiveness or appropiateness that can be transferred to a general field. Through an eclectic research design, which draws on the methodological approach of systematic reviews but is also supplemented by the valuable resource of expert advice, has been compiled, synthesized and analyzed a number of bibliographic findings that in some cases serve to confirm teaching through experimentation, hypotheses or assumptions that we were considering since long ago, while others are of direct concern to the prevention and technical trainer today to review some of their more traditional approaches. This work is considered as a step to get to build a Code of Good Practices that can serve as a reference for the improvement of professional activity in this field

TRIBUNAL ARBITRAL DE INDUSTRIA COMERCIALIZADORA DE REDES INTELIGENTES LTDA - INTELRED LTDA VS. DESARROLLADORA DE ZONAS FRANCAS S.A.

512

TRIBUNAL ARBITRAL DE CORA S.A.S VS. MANSAROVAR ENERGY COLOMBIA LTD

519

El debate académico de competición como instrumento para el aprendizaje de cuestiones de derecho, ciencia política y criminología

Memoria ID-0032. Ayudas de la Universidad de Salamanca para la innovación docente, curso 2016-2017

Temas Socio-Jurídicos. Volumen 6 No. 19 Marzo 1988

De gran importancia para el desarrollo en la práctica, de los objetivos de modernización de la administración de justicia en nuestro departamento, el convenio suscrito por el instituto ser de Investigación Cámara de Comercio de Bucaramanga Universidad Autónoma de Bucaramanga, en el curso del evento, permitirá dotar al Tribunal Superior de Distrito Judicial de Bucaramanga, de los elementos tecnológicos de la computación y los programas informáticos, que le permitan impartir justicia, rápida, oportuna y eficaz. Presentamos los documentos que recogen la convergencia de voluntades de las entidades comprometidas, así como la intervención del Ministro de Justicia, testigo del acuerdo.Of great importance for the practical development of the objectives of modernizing the administration of justice in our department, the agreement signed by the Bucaramanga Chamber of Commerce Research Institute-Bucaramanga Autonomous University, during the event, It will allow equipping the Superior Court of the Judicial District of Bucaramanga with the technological elements of computing and computer programs that allow it to impart justice quickly, timely and efficiently. We present the documents that collect the convergence of wills of the entities involved, as well as the intervention of the Minister of Justice, witness of the agreement

Intermediate Molecular Phenotypes to Identify Genetic Markers of Anthracycline-Induced Cardiotoxicity Risk.

Cardiotoxicity due to anthracyclines (CDA) affects cancer patients, but we cannot predict who may suffer from this complication. CDA is a complex trait with a polygenic component that is mainly unidentified. We propose that levels of intermediate molecular phenotypes (IMPs) in the myocardium associated with histopathological damage could explain CDA susceptibility, so variants of genes encoding these IMPs could identify patients susceptible to this complication. Thus, a genetically heterogeneous cohort of mice (n = 165) generated by backcrossing were treated with doxorubicin and docetaxel. We quantified heart fibrosis using an Ariol slide scanner and intramyocardial levels of IMPs using multiplex bead arrays and QPCR. We identified quantitative trait loci linked to IMPs (ipQTLs) and cdaQTLs via linkage analysis. In three cancer patient cohorts, CDA was quantified using echocardiography or Cardiac Magnetic Resonance. CDA behaves as a complex trait in the mouse cohort. IMP levels in the myocardium were associated with CDA. ipQTLs integrated into genetic models with cdaQTLs account for more CDA phenotypic variation than that explained by cda-QTLs alone. Allelic forms of genes encoding IMPs associated with CDA in mice, including AKT1, MAPK14, MAPK8, STAT3, CAS3, and TP53, are genetic determinants of CDA in patients. Two genetic risk scores for pediatric patients (n = 71) and women with breast cancer (n = 420) were generated using machine-learning Least Absolute Shrinkage and Selection Operator (LASSO) regression. Thus, IMPs associated with heart damage identify genetic markers of CDA risk, thereby allowing more personalized patient management.J.P.L.’s lab is sponsored by Grant PID2020-118527RB-I00 funded by MCIN/AEI/10.13039/ 501100011039; Grant PDC2021-121735-I00 funded by MCIN/AEI/10.13039/501100011039 and by the “European Union Next Generation EU/PRTR”, the Regional Government of Castile and León (CSI144P20). J.P.L. and P.L.S. are supported by the Carlos III Health Institute (PIE14/00066). AGN laboratory and human patients’ studies are supported by an ISCIII project grant (PI18/01242). The Human Genotyping unit is a member of CeGen, PRB3, and is supported by grant PT17/0019 of the PE I + D + i 2013–2016, funded by ISCIII and ERDF. SCLl is supported by MINECO/FEDER research grants (RTI2018-094130-B-100). CH was supported by the Department of Defense (DoD) BCRP, No. BC190820; and the National Cancer Institute (NCI) at the National Institutes of Health (NIH), No. R01CA184476. Lawrence Berkeley National Laboratory (LBNL) is a multi-program national laboratory operated by the University of California for the DOE under contract DE AC02-05CH11231. The Proteomics Unit belongs to ProteoRed, PRB3-ISCIII, supported by grant PT17/0019/0023 of the PE I + D +i, 2017–2020, funded by ISCIII and FEDER. RCC is funded by fellowships from the Spanish Regional Government of Castile and León. NGS is a recipient of an FPU fellowship (MINECO/FEDER). hiPSC-CM studies were funded in part by the “la Caixa” Banking Foundation under the project code HR18-00304 and a Severo Ochoa CNIC Intramural Project (Exp. 12-2016 IGP) to J.J.S