Listar DMat-Artículos, capítulos... por título
Mostrando ítems 76-95 de 132
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Matemática informal y sentido numérico en escolares de priemr ciclo de E. Primaria
(2012)Presentamos un avance de los resultados de una investigación sobre el sentido númerico en alumnos y alumnas de primero y segundo de Educación Primaria de la provincia de Córdoba. Se utilizó un test estandarizado y ... -
Mathematical practical sessions with manipulatives: Trainee teachers’ perceptions of their utility
(Education Association of South Africa, 2019)This study presents the perceptions of trainee teachers regarding the realisation of practical mathematical sessions to expand on the concepts that are taught in primary education using manipulatives. For a 4-month period, ... -
Mathematics in the Spanish press: a case study of the 18th century journal Semanario de Salamanca
(Springer, 2023)Old mathematics books and textbooks have always been sources of relevant information for researchers working on the history of mathematics and mathematics education. However, helpful information about this field can also ... -
MC64-ClustalWP2: A Highly-Parallel Hybrid Strategy to Align Multiple Sequences in Many-Core Architectures
(PLOS, 2014)We have developed the MC64-ClustalWP2 as a new implementation of the Clustal W algorithm, integrating a novel parallelization strategy and significantly increasing the performance when aligning long sequences in architectures ... -
MC64-Cluster: Many-Core CPU Cluster Architecture and Performance Analysis in B-Tree Searches
(2017)The MC64-Cluster computer platform was designed, based on many-core CPU microprocessors: Tile64. MC64-Cluster architecture was outlined in terms of both hardware and software, including commands available to manage jobs ... -
MC64: A web platform to test bioinformatics algorithms in a many-core architecture
(Springer Berlin / Heidelberg, 2011)New analytical methodologies, like the so-called "next-generation sequencing" (NGS), allow the sequencing of full genomes with high speed and reduced price. Yet, such technologies generate huge amounts of data that demand ... -
Measuring attitude towards mathematics using Likert scale surveys: The weighted average
(Public Library Of Science (PLOS), 2020)In the research on mathematics education, numerous Likert-type instruments estimating attitudes toward mathematics are sometimes composed of factors with a high correlation, which can make it difficult to assign the ... -
Mejora de la calidad proteica de dietas maiz-altramuz con aminoácidos sintéticos
(Universidad de Córdoba, Servicio de Publicaciones, 1990)Two experiments involving 696 broiler type chickens from 14 to 28 days of age were carried out to assess the optimun level for lysine, methionine and tryptophan to be added to diets maize-sweet lupin seed meal made ... -
Methodology for the Automatic Inventory of Olive Groves at the Plot and Polygon Level
(MDPI, 2022)The aim of this study was to develop and validate a methodology to carry out olive grove inventories based on open data sources and automatic photogrammetric and satellite image analysis techniques. To do so, tools and ... -
Multilayer models for hydrostatic Herschel-Bulkley viscoplastic flows
(Elsevier, 2023)Starting from Navier-Stokes’ equation we derive two shallow water multilayer models for yield stress fluids, depending on the asymptotic analysis. One of them takes into account the normal stress contributions, making ... -
Multilayer Shallow Model for Dry Granular Flows with a Weakly Non-hydrostatic Pressure
(Springer, 2023)The multilayer model proposed in this paper is a generalization of the multilayer non- hydrostatic model for shallow granular flows (Fernández-Nieto et al in Commun Math Sci 16(5):1169–1202, 2018. https://doi.org/10.43 ... -
New Bounds for Three Outer-Independent Domination-Related Parameters in Cactus Graphs
(MDPI, 2024)Let G be a nontrivial connected graph. For a set D _ V(G), we define D = V(G) n D. The set D is a total outer-independent dominating set of G if jN(v) \ Dj _ 1 for every vertex v 2 V(G) and D is an independent set of G. ... -
New examples of static spacetimes admitting a unique standard decomposition
(SpringerLink, 2019)In this paper we introduce a new general approach for the study of spacetimes admitting a standard static splitting. This approach allows us to give an alternative proof for the uniqueness of splitting in the spatially ... -
Non-hydrostatic layer-averaged approximation of Euler system with enhanced dispersion properties
(Springer, 2023)A new family of non-hydrostatic layer-averaged models for the non-stationary Euler equations is presented in this work, with improved dispersion relations. They are a generalisation of the layer-averaged models introduced ... -
Números negativos en los siglos XVIII y XIX: fenomenología y representaciones
(Universidad de Almería, Servicio de Publicaciones, 2009)In this article is displayed a categorisation on the phenomena and the representations used to introduce the negative numbers in mathematics books published in Spain during the XVIIIth and XIXth centuries. Through a content ... -
On complete trapped submanifolds in globally hyperbolic spacetimes
(IOP Publishing, 2023)The aim of this manuscript is to obtain rigidity and non-existence results for parabolic spacelike submanifolds with causal mean curvature vector field in orthogonally splitted spacetimes, and in particular, in globally ... -
On the concept of infinitesimal position vector fields in Galilean spacetimes
(World Scientific, 2022)We introduce two different ways to establish the concept of infinitesimal position vector field between “infinitesimally nearby” observers in a Galilean spacetime as well as show their mathematical equivalence. We also use ... -
On the connectedness of a random closed set of a Euclidean space
(Elsevier, 2022)Our aim is to obtain a suitable characterization of certain topological properties of a random closed set through its capacity functional. The main technique mixes two different fields: on the one hand, the abstract ... -
On the symmetries of a Kaehler manifold
(Springer, 2023)The natural symmetries of Riemannian manifolds are described by the symmetries of its Riemann curvature tensor. In that sense, the most symmetric manifolds are the constant sectional curvature ones. Its natural generalizations ... -
Optimization Problems in Spanish Differential Calculus Books Published in the 18th Century
(MDPI, 2022)History of mathematics and mathematics education research allows us to know, among other issues: the influence that certain textbooks have had on the teaching of school mathematics, in academic or professional training, ...