Synthesis of molybdenum oxide nanoparticles by nanosecond laser ablation

Phothermal therapy (PTT) is one of the most promising techniques to treat cancer. Finding the ideal PTT agent nanomaterial has remained a challenge and has brought the interest of several researchers. In this work, we report the synthesis of molybdenum oxide (MoOx) nanoparticles (NPs), which exhibit absorption in the biological optical window ~840 nm, by using the laser ablation of solids in liquids (LASL) technique with nanosecond (ns) pulses. A Nd:YAG laser was used to synthesize the NPs in deionized (DI) water, free of surfactants or additives, which were optically characterized by absorption spectroscopy and TEM-EDX microscopy. Semi spherical NPs with a suitable average size and shape for potential use as PTT agents were obtained by laser ablation and ablation + fragmentation. The calculated band gap is 3.1 eV, which corresponds to MoO3. Micro-Raman spectroscopy studies determined that these NPs are composed of amorphous molybdenum oxide hydrates (MoO3 · xH2O)

Application of the “Footprint Family” for the environmental evaluation of public buildings in Spain. case study: educational center

Within the commitments of the 2030 Agenda, the socio-economic objectives for a sustainable development of society as a whole, stand out, which propose minimizing the impact produced by all the activities of the Public Administration on the environment. Therefore, the creation and retrofitting of its infrastructures, needed for its operation and the services it provides, has a great impact. The goal of this work focuses on a methodological adaptation for the environmental evaluation of the works promoted by public organizations, quantifying and locating the sources of impact with the purpose of taking the measures to minimize them. For this, the footprint family, ecological, carbon, and water, are proposed as indicators, characterized by the simplicity of their message and the ease of their implementation in the construction sector, by controlling project costs. A case study is presented, the construction of an early childhood education center in the city of Madrid, for which the data needed for the calculation are presented and analyzed. The results reflect interesting information in terms of footprints, on the elements that must be controlled and improved in the project design, such as concrete and steel.Dentro de los compromisos de la Agenda 2030, destacan los objetivos socioeconómicos para un desarrollo sostenible del conjunto de la sociedad, que plantean minimizar el impacto producido por la Administración Pública sobre el medio ambiente en todas sus actividades. Por ello, la creación y reforma de sus infraestructuras, necesarias para su funcionamiento y los servicios que presta, supone un gran impacto. El objetivo del presente trabajo se centra en una adaptación metodológica para evaluación ambiental de las obras promovidas por entes públicos, cuantificando y localizando los focos de impacto para poder tomar las medidas que los minimicen. Para ello, se proponen como indicadores la familia de las huellas, ecológica, de carbono e hídrica, caracterizadas por la simpleza del mensaje y la facilidad para implantarse en el sector de la construcción, a través del control de costes de los proyectos. En concreto, se presenta un estudio de caso, la construcción de un centro de educación infantil en la ciudad de Madrid, para cuyo análisis se exponen y analizan los datos necesarios. Los resultados reflejan información interesante, en términos de huellas, sobre los elementos que deben ser controlados y mejorados en el diseño del proyecto, tales como el hormigón y acero

Applications of data science in policing: VeriPol as an investigation support tool

Data Science is an interdisciplinary field involving the development of processes and systems to extract knowledge and understanding from data in different formats and from different sources. Considering the large amount of data generated and managed by public safety agencies, Data Science applications in the police sector are numerous. More important are the advantages that the different applications of Data Science could provide the police on issues such as the optimization of resources, the increase of efficiency and effectiveness, the modernization and its exemplariness when compared with other institutions. In this paper we present different potential applications fields of Data Science for the police. In addition, we focus on the case of VeriPol, a tool for automatic detection of false violent robbery reports, currently under development by the Spanish National Police. In particular, we illustrate a detailed analysis of the results of a recent pilot study aimed at assessing the effectiveness of the tool

Characterization of nanostructured SnO2 films deposited by reactive DC-magnetron sputtering

Nanostructured tin oxide thin films were deposited on silicon and glass slides substrates by reactive DC-Magnetron sputtering using a tin target in a mixture of argon and oxygen gases. The substrate temperature was varied in the range from 53 to 243 oC, keeping the other deposition parameters constant. The tin oxide films were characterized by: Scanning Electron Microscopy, Energy Dispersive Spectrometry, X Ray Diffraction, microRaman spectroscopy and UV-VIS spectroscopy. It was found that the substrate temperature has an effect mainly on the structural, morphological and optical properties of the thin films. At 53 and 90 oC the tetragonal crystalline phase was obtained while a mixture of crystalline phases (o-SnO2 and t-SnO2) was obtained at 148, 185 and 243 oC

Systematic review: analysis of osteopathic therapy in rotator cuff tendinitis

ilustraciones, diagramaLa presente revisión sistemática de la literatura se enfoca en el análisis de la eficacia de la terapia osteopática en el tratamiento de la tendinitis del manguito rotador. Se llevó a cabo una búsqueda exhaustiva de estudios en bases de datos reconocidas, como Pubmed, Cochrane Library, Lilacs y el International Journal of Osteopathic Medicine, lo que condujo a la identificación de 10 estudios que cumplían con los criterios de inclusión establecidos. Para evaluar el riesgo de sesgo en los estudios seleccionados, se utilizaron diversas herramientas como, Cochrane Risk of Bias (ROB), Risk of Bias Assessment Tool (ROBIS) y las herramientas JBI (Joanna Briggs Institute). La calidad de la evidencia obtenida se evaluó mediante la herramienta GRADE Pro y los resultados se presentan a través de una síntesis narrativa. Los hallazgos de esta revisión revelaron evidencia de calidad que varía entre baja y moderada. Los resultados sugieren que la osteopatía puede contribuir a la disminución del dolor y a la mejoría del rango de movilidad en pacientes que padecen tendinitis del manguito rotador. Estos efectos se observaron comparándolos con diversos tratamientos convencionales disponibles para esta afección. La revisión da indicios alentadores sobre la utilidad de la osteopatía en el manejo de la tendinitis del manguito rotador, aunque se subraya la necesidad de continuar investigando para conocer sus efectos y ventajas potenciales. Palabras claves: manguito rotador, osteopatía, terapia manual, quiropraxia, manipulación musculoesquelética. (Texto tomado de la fuenyte)The present systematic review of the literature focuses on the analysis of the efficacy of osteopathic therapy in the treatment of rotator cuff tendinitis. A comprehensive search for studies was conducted in recognised databases, such as Pubmed, Cochrane Library, Lilacs and the International Journal of Osteopathic Medicine, which led to the identification of 10 studies that met the established inclusion criteria. To assess the risk of bias in the selected studies, we used various tools such as Cochrane Risk of Bias (ROB), Risk of Bias Assessment Tool (ROBIS) and JBI tools (Joanna Briggs Institute). The quality of the evidence obtained was assessed using the GRADE Pro tool and the results are presented through a narrative synthesis. The findings of this review revealed quality evidence ranging from low to moderate. The results suggest that osteopathy may contribute to decreased pain and improved range of motion in patients suffering from rotator cuff tendinitis. These effects were seen in comparison with various conventional treatments available for this condition. However, the review gives encouraging indications about the usefulness of osteopathy in the management of rotator cuff tendonitis, although it underlines the need for further research to know its effects and potential advantages.MaestríaMagíster en Medicina Alternativarevisión sistemática: Cochrane Risk of Bias (ROB), Risk of Bias Assessment Tool (ROBIS) y las herramientas JBI (Joanna Briggs Institute). GRADE pr

Structural performance of steel-concrete sandwich beams with carbon nanofiber reinforcement

Cementitious materials such as concrete are typically characterised as quasi-brittle with low tensile strength and low strain capacity, which hence affect the long-term durability of the structure. One of the most important issues in designing and maintaining massive concrete structures like offshore and nuclear power plants is concrete cracking, which is due to the low tensile strength of concrete. This can destroy the structural aesthetic and lead to deterioration of the structure. The addition of fibers to concrete has been proven to be a good mean to control its crack behaviour and maintain its ductility in tension. Further, since the discovery of carbon nanotubes/fibers (CNT/CNF), they have been also considered as efficient fibers for construction materials such as concrete. This study presents the structural performance of steel-concrete (SC) elements with a fiber reinforced concrete (FRC) core using both single and hybrid fibers (i.e. consisting of two types of fibers). For this study carbon nanofibers, and steel fibers which are conventionally used in practice, are used for the FRC. Static tests were conducted on eight SC beams with different concrete types. The paper reports on the experimental results obtained from four-point flexural loading of the SC beams. The study shows considerable improvement for both the strength and ductility of the tested specimens. The research laid the groundwork for additional in-depth studies on using carbon nanofiber reinforced concrete within structural members

Relación entre la inserción laboral de personas con discapacidad y la imagen corporativa de la Heladería Holanda S.R.L. de Cajamarca desde la percepción de los clientes, en el segundo semestre de 2019

El presente trabajo de investigación propuso como objetivo determinar la relación que existe entre la inclusión laboral de personas con discapacidad y la imagen corporativa de la Heladería Holanda S.R.L. de Cajamarca en el segundo semestre de 2019. Se diseñó una investigación no experimental, cuantitativa, correlacional y transversal. Se practicó la técnica de la encuesta usando como instrumento un cuestionario para cada variable, que fueron aplicados en una muestra de 240 clientes, escogidos en un muestreo probabilístico simple. Los datos obtenidos fueron procesados en el programa Microsoft Excel 2016 a fin de obtener las tablas de frecuencia y luego fueron procesados en el software IBM-SPSS V-24 con el fin de obtener los valores estadísticos necesarios para establecer la correlación entre las variables de estudio, usando para ese fin el coeficiente r de Pearson. Los resultados mostraron un valor r=.478 y el valor de significancia fue 0.001, que es menor al valor de la significancia escogido (p<0,01). Se acepta la hipótesis alterna HG1; es decir, con 99% de confianza, existe una correlación positiva moderada significativa entre el nivel de inclusión laboral de personas discapacitadas y la imagen corporativa de la Heladería Holanda S.R.L. de Cajamarca en el segundo semestre de 2019.This research work proposed as objective to determine if there is a relationship between the labor inclusion of people with disabilities and the corporate image of Heladería Holanda S.R.L. of Cajamarca in the second semester of 2019. A non-experimental research, quantitative, correlational and cross-sectional study. It is practiced the technique of the survey, using a questionnaire as an instrument for each variable, which were applied in a sample of 240 customers, chosen in a simple probabilistic sampling. The data obtained was processed in the Microsoft Excel 2016 program in order to obtain the frequency tables and then processed in the IBM-SPSS V-24 software, in order to obtain the statistical values necessary to establish the correlation between the study variables, using for this purpose the Pearson's r coefficient. The results showed an r = .478 value and the significance value was 0.001, which is less than the chosen significance value (p <0.01). The alternative hypothesis HG1 is accepted; that is, with 99% confidence, there is a significant moderate positive correlation between the level of job inclusion of disabled people and the corporate image of Heladería Holanda S.R.L. of Cajamarca in the second semester of 2019

Live lecture screencast recording: a proposal to simplify the tasks associated with content production for video-teaching

Se trata de un resumen (Abstract) de la contribución. El acuerdo de transferencia de copyright del trabajo completo es incompatible con el depósito del mismo en RIUMA.Se describe la implementación inicial de un método simplificado de grabación en directo de sesiones de clase en asignaturas de las Escuelas de Ingeniería de la Universidad de Málaga. La simplificación se logra al incorporar en la actividad diaria del aula ciertas características típicas de la grabación en diferido de mini videos docentes. En una configuración mínima se graba únicamente el audio y el video en pantalla de la clase, evitando los desafíos técnicos y las dificultades que implica la grabación de otros elementos como la pizarra. Esto implica el uso de anotaciones en pantalla en tiempo real para reemplazar completamente las anotaciones en la pizarra.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech. I Plan Propio Integral de Docencia. Universidad de Málaga. Universidad de Málaga. Vicerectorado de Personal Docente e Investigador, Proyectos de Innovación Educativa (PIE 17-018

Gravity or turbulence? -III. Evidence of pure thermal Jeans fragmentation at ~0.1 pc scale

We combine previously published interferometric and single-dish data of relatively nearby massive dense cores that are actively forming stars to test whether their `fragmentation level' is controlled by turbulent or thermal support. We find no clear correlation between the fragmentation level and velocity dispersion, nor between the observed number of fragments and the number of fragments expected when the gravitationally unstable mass is calculated including various prescriptions for `turbulent support'. On the other hand, the best correlation is found for the case of pure thermal Jeans fragmentation, for which we infer a core formation efficiency around 13 per cent, consistent with previous works. We conclude that the dominant factor determining the fragmentation level of star-forming massive dense cores at 0.1 pc scale seems to be thermal Jeans fragmentation.Comment: accepted in MNRA

Decentralized ellipsoidal state estimation for linear model predictive control of an irrigation canal

A centralized linear MPC is used to stabilize an irrigation system whose operation is represented by an integrator-delay model. Since not all the state variables can be measured, a decentralized ellipsoidal estimation strategy is proposed. This approach keeps the quality of a centralized estimation and reduces significantly the computation time for the systems considered. An adaptation of Test Canal 1, developed by the ASCE Task Committee on Canal Automation Algorithms, is used as a case study to show the performance of the proposed methodology.Fil: Rodriguez Aguilar, Leandro Pedro Faustino. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan; ArgentinaFil: Maestre, J. M.. Universidad de Sevilla. Escuela Técnica Superior de Ingeniería; EspañaFil: Camacho, E. F.. Universidad de Sevilla. Escuela Técnica Superior de Ingeniería; EspañaFil: Sanchez, Mabel Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentin