Recursos rítmicos utilizados por Tigran Hamasyan en la obra Out of the Grid

Tigran Hamasyan is an Armenian Pianist whose music comes from a wide variety of sources that includes styles such as jazz, classical music, Armenian folk, rock, among others. Due to this richness, his music applies various complex musical resources. In this work we will focus on his rhythmic approach to music by analyzing his work “Out of the Grid”...Tigran Hamasyan es un pianista de origen armenio cuya música se nutre de una gran variedad de fuentes que abarcan estilos como jazz, música clásica, folklore armenio, rock entre otros. Su propuesta musical, al ser muy rica en influencias utiliza una amplia gama de recursos musicales..

Comparación vocal e instrumental de los solos ejecutados por Paul Desmond, Al Jarreau y María João sobre la obra Take Five

In this project, we will focus on analyzing three very important interpreters in the musical field, especially in improvisation. Parts of each solo will be transcribed, and the most relevant sections will be taken into account as tools for their respective explanation. In the first place, we will have a brief review of saxophonist Paul Desmond and vocalists Al Jarreau and María João. We will start with the exploration of each phrase, section, dynamics, articulations, etc., with the intention of studying in greater depth the rhythmic and melodic densities...En este proyecto, nos centraremos en analizar a tres intérpretes muy importantes en el campo musical, especialmente en la improvisación. Se transcribirán partes de cada solo y se tomarán en cuenta las secciones más relevantes como herramientas para su respectiva explicación. En primer lugar, tendremos una pequeña reseña del saxofonista Paul Desmond y los vocalistas Al Jarreau y María João. Partiremos con la exploración de cada frase, sección, dinámicas, articulaciones etc., con la intención de estudiar de manera más profunda las densidades rítmicas y melódicas..

Evaluation of demineralized lignin and lignin-phenolic resin blends to produce biocoke suitable for blast furnace operation

Metallurgical coke makers could reduce carbon emissions and material costs by introducing waste lignin in coke oven charges. Two approaches have been studied here to increase the use of lignin in the preparation of metallurgical coke: lignin demineralization with H2SO4 and lignin blending with a low rank coal using phenolic resin as binder. The biocoke obtained after carbonization at 1000 °C from the hydrochar of demineralized lignin (350 °C, 6 h, biomass/water = 0.5 wt/wt) had much higher reactivity than the coke obtained from the low rank coking coal, proving that demineralization of lignin prior hydrothermal conversion is not a valid route for biocoke making. In the other approach, it was found that blends containing 70 wt% low rank coal, 24 wt% torrefied lignin (before or after demineralization) and 6 wt% phenolic resin produced biocokes with suitable mechanical strength for handling but higher reactivity than the coke obtained from the low rank coking coal alone. The microporous surface areas of the biocokes studied did not correlate with their reactivity values

Funciones de estimación de la biomasa aérea de varias especies del matorral mediterráneo del centro de la península Ibérica

Se calculan las funciones adecuadas para evaluar la biomasa aérea de 17 especies típicas del matorral mediterráneo del centro de la península Ibérica. Se usan y discuten diferentes métodos existentes en la literatura. La relación entre el peso y un parámetro estructural sencillo para estas especies -cobertura, altura, biovolumen aparente- suele ser alométrica -expresable como una potencia de alguno de estos parámetros-. La función de alometria calculada directamente, sin transformaciones previas de los datos originales, se ha revelado como la de mayor utilidad en el caso considerado.A set of functions for the estimation of aerial biomass have been calculated on data from 17 Mediterranean shrub species. Together with the methods here used, those applied in the relevant literature are discussed. Simple structural parameters like cover, height and biovolume proved to scale allometrically with weight. Models based on raw untransformated data rendered the best results

GESTIÓN FINANCIERA DE EMPRESAS EN CRISIS "LA REALIDAD PERUANA"

Nuestra investigación: Gestión financiera de empresas en crisis "La Realidad Peruana", en primer lugar estudia y analiza las variables externas que gravitaron en la crisis de los diversos sectores productivos de nuestra economía; tales como: las políticas económicas implementadas por los gobernantes de tumo, la corrupción a nivel político e institucional, el terrorismo, los desastres naturales que devastaron nuestro país, etc. Asimismo, también consideramos los efectos de las crisis financieras internacionales ocurridas en México, Asia, Rusia, Brasil, Argentina y por último la globalización económica internacional en la economía peruana. También analizarnos un conjunto de variables de origen internas que han sido los agentes que causaron crisis financiera en las empresas nacionales, tales como: los sistemas productivos ineficientes, la inversiones improductivas, la falta de competitividad, la resistencia al cambio de las personas que laboran en las empresas, alta morosidad del sistema financiero provocada por la recesión económica, endeudamiento con el costo financiero elevado, estrategias implementadas inadecuadas, constitución y organización en mayor porcentaje de tipo familiar La tesis central de nuestra investigación es la elaboración de un Plan Estratégico para gestionar empresas en crisis, considerando la trilogía básica del gestor: la supervivencia, crecimiento y utilidad, pasando por una etapa de diagnóstico que considere el acuerdo concursa) entre el que va a gestionar la empresa en crisis y los acreedores, los mismos que deben ser identificados plenamente en esa etapa. Por último, consideramos también importante analizar y evaluar el sistema peruano de reestructuración patrimonial, que tiene más de nueve años de vigencia y por el cual han pasado empresas de todos los sectores económicos; de diferentes tamaños, distinto número de trabajadores, variados ni veles de endeudamiento y variadas razones para ingresar al sistema y a sean éstos por problemas coyunturales o estructurales

Critical success factors modelling in operational management and the recovery of overdue portfolio of the Babahoyo GAD in The Municipal Market May 4

This paper aims to study the situation of the recovery of the overdue portfolio of the Babahoyo Municipal Decentralized Autonomous Government (MDAG) in the municipal market 4 de Mayo . The problem consists in the difficulties arose in tax collection by the municipal government´s employees to this market. In the present investigation neutrosophic cognitive maps are applied to assess the relationship between every pair of causes of this problem. For the evaluation, we count on five experts’ criteria. Because there exist some pairs of causes whose relationship are unknown, neutrosophic cognitive maps are used instead of the fuzzy ones, where symbol I denotes indeterminate relationships among them. Additionally, the Ishikawa Diagram is applied, which is a simple graphical way to represent the causes and effects of problems

Efficient multilayer shallow-water simulation system based on GPUs

The computational simulation of shallow stratified fluids is a very active research topic because these types of systems are very common in a variety of natural environments. The simulation of such systems can be modelled using multilayer shallow-water equations but do impose important computational requisites especially when applied to large domains. General Purpose Computing on Graphics Processing Units (GPGPU) has become a vivid research field due to the arrival of massively parallel hardware platforms (based on graphics cards) and adequate pro- gramming frameworks which have allowed important speed-up factors with respect to not only sequential but also parallel CPU based simulation systems. In this work we present a proposal for the simulation of shallow stratified fluids with an arbitrary number of layers using GPUs. The designed system does fully adapt to the many-core architecture of modern GPUs and several experiments have been carried out to illustrate its scalability and behavior on different GPU models. We propose a new elaborated 3D computational scheme for an underlying 2D mathematical model. This scheme allowed implementing a system capable of handling an arbitrary number of layers. The system adds no overhead when used for two-layer scenarios, compared to an existing 2D system specifically designed for just two layers. Our proposal is aimed at creating a GPU-based computational scheme suitable for the simulation of multilayer large-scale real-world scenarios.P11-FQM8179P11-RNM7069MTM2012-38383-C02-0

Variables in the health research process: importance, classification and presentation in research protocols

La planeación adecuada de una investigación en ciencias de la salud es necesaria para determinar la información que debe ser recolectada y que permitirá lograr los objetivos del estudio. Esta información conforma el grupo de variables que permiten, a su vez, realizar una aproximación a priori a la metodología de análisis de los datos. Este artículo académico busca aclarar la terminología empleada al hablar de variables y mostrar una forma sencilla de su presentación en un protocolo o proyecto de investigación.[ Castro-Jiménez MA, DÍaz-MartÍnez LA. Las variables en el proceso de investigación en salud: importancia, clasificación y forma de presentación en protocolos de investigación. MedUNAB2009; 12: 151-156 ].Proper planning of an investigation in the health sciences is necessary to determine the information that must be collected and that will allow to achieve the objectives of the study. This information makes up the group of variables that allow, in turn, to make an a priori approach to the data analysis methodology. This academic article seeks to clarify the terminology used when talking about variables and show a simple way of presenting them in a protocol or research project. [Castro-Jiménez MA, DÍaz-MartÍnez LA. Variables in the health research process: importance, classification, and form of presentation in research protocols. MedUNAB2009; 12: 151-156]

An MPI-CUDA implementation of an improved Roe method for two-layer shallow water systems

The numerical solution of two-layer shallow water systems is required to simulate accurately stratified fluids, which are ubiquitous in nature: they appear in atmospheric flows, ocean currents, oil spills, . . . Moreover, the implementation of the numerical schemes to solve these models in realistic scenarios imposes huge demands of computing power. In this paper, we tackle the acceleration of these simulations in triangular meshes by exploiting the combined power of several CUDA-enabled GPUs in a GPU cluster. For that purpose, an improvement of a path conservative Roe type finite volume scheme which is specially suitable for GPU implementation is presented, and a distributed implementation of this scheme which uses CUDA and MPI to exploit the potential of a GPU cluster is developed. This implementation overlaps MPI communication with CPU-GPU memory transfers and GPU computation to increase efficiency. Several numerical experiments performed on a cluster of modern CUDA-enabled GPUs show the efficiency of the distributed solver

Characterization of 3d printing filaments applied in restoration of sensitive archaeological objects using rapid prototyping

[EN] Purpose The purpose of this paper is to characterize three-dimensional (3D) printing filaments commonly used in fused deposition modeling (FDM) to determine their viability for restoration and conservation treatments. Design/methodology/approach Eight current filaments for FDM from six polymeric materials have been characterized to determine their suitability for restoration and conservation treatments. For testing these filaments, specimens are printed with acrylonitrile-butadiene-styrene; polylactic acid; polylactic acid with CaCO3 (E.P.); polyethylene terephthalate glycol; polypropylene; and high-impact polystyrene. Suitability of a filament was verified using the Oddy test by detecting the action of volatile pollutants released from the filaments. The morphological and color changes were observed after allowing them to degrade under the exposure of UV radiation. The samples were then analyzed using Fourier-transform infrared spectroscopy. In addition, gas chromatography-mass spectroscopy technique was applied to complete the characterization of the printed filaments. Findings Materials investigated are suitable for restoration purposes ensuring long-term stability. Rapid prototyping using FDM is appropriate for restoring sensitive archaeological objects allowing reconstruction of parts and decreasing risk while manipulating delicate artifacts. Originality/value Rapid prototyping using FDM was chosen for the restoration of a fragile and sensitive archaeological glass bowl from Manises Ceramic Museum.This work is supported by the Spanish Ministry of Economy, Industry and Competitiveness and the European Regional Development Fund (ERDF), in the context of the research project "Desarrollo de un Sistema Integrado de Restauracion, Recomposicion, Restitucion y Representacion de Fragmentos Arqueologicos": HAR2015-69408-R (MINECO-FEDER).Aura-Castro, E.; Díaz-Marín, C.; Mas-Barberà, X.; Sánchez López, M.; Vendrell Vidal, E. (2021). Characterization of 3d printing filaments applied in restoration of sensitive archaeological objects using rapid prototyping. Rapid Prototyping Journal. 27(4):645-657. https://doi.org/10.1108/RPJ-06-2019-0153S64565727