815 research outputs found
Pseudo-differential Operators with Semi-Quasielliptic Symbols Over p-adic Fields
In this article, we study pseudo-differential equations involving
semi-quasielliptic symbols over p-adics. We determine the function spaces where
such equations have solutions. We introduce the space of infinitely
pseudo-differentiable functions with respect to a semi-quasielliptic operator.
By using these spaces we show the existence of a regularization effect for
certain parabolic equations over p-adics.Comment: Accepted in Journal of Mathemaatical Analysis and its Application
Using network science to analyze football passing networks: dynamics, space, time and the multilayer nature of the game
From the diversity of applications of Network Science, in this Opinion Paper
we are concerned about its potential to analyze one of the most extended group
sports: Football (soccer in U.S. terminology). As we will see, Network Science
allows addressing different aspects of the team organization and performance
not captured by classical analyses based on the performance of individual
players. The reason behind relies on the complex nature of the game, which,
paraphrasing the foundational paradigm of complexity sciences "can not be
analyzed by looking at its components (i.e., players) individually but, on the
contrary, considering the system as a whole" or, in the classical words of
after-match interviews "it's not just me, it's the team".Comment: 7 pages, 1 figur
Neuroplasticity and Healthy Lifestyle: How Can We Understand This Relationship?
Our brain has this extraordinary ability to experience functional and structural changes before environmental stimuli, cognitive demand, or our experience itself. Exercise, diet, an appropriate sleep pattern, and reading habits are among those activities proposed to induce effects on cerebral architecture—an active lifestyle seems to induce changes in the brain function that favour welfare and better quality of life. This special issue is intended to extend the knowledge about the relationship between neuroplasticity and a healthy lifestyleFil: Begega, Azucena. Universidad de Oviedo; EspañaFil: Santín, Luis J.. Universidad de Málaga; EspañaFil: Galeano, Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Bioquímicas de Buenos Aires. Fundación Instituto Leloir. Instituto de Investigaciones Bioquímicas de Buenos Aires; ArgentinaFil: Cutuli, Debora. Universita Di Roma; ItaliaFil: Sampedro Piquero, Patricia. Universidad Autonoma de Madrid. Facultad de Psicología. Departamento de Psicología Biológica y de la Salud; Españ
COMBUSTION MODEL FOR SPARK IGNITION ENGINES OPERATING ON GASOLINE-ETHANOL BLENDS
This article presents a phenomenological combustion model using turbulent flame propagation theory developed by Keck and coworkers, 1974. The model was adapted to work with gasoline-ethanol blends, following correlations presented by Bayraktar,2005. New sub-models were introduced for intake valve velocity and combustion efficiency. These allow simulating the effect of compression ratio, spark timing and fuel change. Results show good agreement with the ones in the original work as well as with experimental results in a Cooperative Fuels Research (CFR) engine
Consórcio entre gramíneas e leguminosas para produção de silagens, fenos e pré-secados.
Orientado por: Dr. Marco Antonio Previdelli Orrico Junior e Co-orientadora: Dra. Marciana Retor
Trilobites from Vargas Peña (Llandovery) of Itaugúa, eastern Paraguay : advances in trolobites research
Fil: Tortello, Franco. División Paleontología Invertebrados, Museo de La Plata, Paseo del Bosque s/n, 1900 La Plata, ArgentinaFil: Clarkson, E.N.K.. Grant Institute, School of Geosciences, University of Edinburgh,West Mains Road, Edinburgh EH9 3JW, United KingdomFil: Uriz, Norberto J.. División Geología, Museo de La Plata, Paseo del Bosque s/n, 1900 La Plata, ArgentinaFil: Alfaro, Marta. División Geología, Museo de La Plata, Paseo del Bosque s/n, 1900 La Plata, ArgentinaFil: Galeano Inchausti, Julio César. Ministerio de Obras Públicas y Comunicaciones, Subsecretaría de Minas y Energía, República del Paragua
Bases for the digital transformation of the productive sector: an exploratory study of key competencies in Peru
The main objective of this research is to determine the basis of the key competencies necessary to achieve the digital transformation of public and private organizations in Peru. With this objective in mind, the conceptual framework involves the definition of a digital transformation in organizations and their impact on those organizations. Secondly, the article presented the results of the exploratory fieldwork conducted through in-depth interviews with ten executives from different productive sectors and analyzed them through content analysis. From this exploratory study, it concludes that all the experts interviewed agree on: i) the urgency of initiating a digital transformation process in small, medium, and large companies; ii) the need for training in digital transformation for company employees in all functional lines, giving priority to the commercial area; and iii) investment in the implementation process starting with cybersecurity and big data due to the impact on the operational and commercial results of the companies.El objetivo principal de esta investigaci?n es determinar las bases de las competencias clave necesarias para lograr la transformaci?n digital de las organizaciones p?blicas y privadas en el Per?. Con este objetivo en mente, el marco conceptual implica la definici?n de la transformaci?n digital en las organizaciones y su impacto en las mismas. En segundo lugar, el art?culo presenta los resultados del trabajo de campo exploratorio realizado a trav?s de entrevistas en profundidad a diez ejecutivos de diferentes sectores productivos y los analiza a trav?s del an?lisis de contenido. De este estudio exploratorio se concluye que todos los expertos entrevistados coinciden en: i) la urgencia de iniciar un proceso de transformaci?n digital en las peque?as, medianas y grandes empresas; ii) la necesidad de formaci?n en transformaci?n digital para los empleados de las empresas en todas las l?neas funcionales, priorizando el ?rea comercial; y iii) la inversi?n en el proceso de implantaci?n a partir de la ciberseguridad y el big data por el impacto en los resultados operativos y comerciales de las empresas
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