Results 71 to 80 of about 188,382 (179)

Las matemáticas en preescolar

open access: yesEducar, 1984
Es el propósito del presente artículo estudiar la evolución de los conceptos básicos matemáticos en relación con la evolución madurativa del niño, con la finalidad de adecuar los contenidos matemáticos de la enseñanza para la etapa preescolar.
Maria Rosa Mira Castera
doaj   +1 more source

A Survey of Methods for Constructing 3D Urban Models From Point Clouds

open access: yesComputer Graphics Forum, EarlyView.
The survey outlines a general process for constructing 3D models from point clouds and categorizes the methods based on their use of templates, basic surface primitives, hybrid approaches, or linear primitives. Additionally, the survey reviews the datasets and benchmarks that are essential for testing and training the developed methods.
Chiara Romanengo   +5 more
wiley   +1 more source

Reactive Red 195‐loaded halloysite for cotton dyeing and printing: Adsorption, characterisation and comparison with conventional exhaustion dyeing

open access: yesColoration Technology, EarlyView.
Abstract Textile wet processing generates dye‐containing effluents that require effective recovery and valorisation strategies. Halloysite nanoclay was used to capture Reactive Red 195 from a model aqueous solution, and the resulting dye‐loaded solid (REDHA7) was subsequently applied once to cotton by exhaustion dyeing and pigment‐type printing ...
Marta Perez‐Cabezas   +4 more
wiley   +1 more source

Compromiso ontológico de la música occidental

open access: yesIdeas y Valores, 2013
La música occidental ha mantenido una relación cruzada y necesaria, más o menos comprometida, con la aritmética, la geometría y la física. En este artículo se hace un seguimiento histórico de este vínculo, intentando poner en evidencia algunas de las ...
Myriam Arroyave Montoya
doaj  

EFL Learners’ Receptive Vocabulary Size and the Common European Framework of Reference for Languages: Estimates Across Levels

open access: yesInternational Journal of Applied Linguistics, EarlyView.
ABSTRACT The Common European Framework of Reference for languages (CEFR) is widely used as a reference for language teaching and learning. However, providing vocabulary size (VS) estimates is beyond the CEFR's original aim. Previous research has also shown that learners’ receptive VS is related to overall proficiency and to the four language skills ...
Ferran Gesa
wiley   +1 more source

Coloquios y conferencias [PDF]

open access: yes, 1985
Gracias a las contribuciones de profesores del Departamento de Matemáticas y Estadística de la Universidad Nacional se pudieron realizar una serie de importantes eventos académicos en varias regiones del ...
Boletín de, Matemáticas
core  

An effective and efficient matheuristic for the electric vehicle routing problem with capacitated recharging stations

open access: yesInternational Transactions in Operational Research, EarlyView.
Abstract In this paper, we address the problem of routing a fleet of electric vehicles (EVs) to serve a set of customers, geographically distributed, within their time windows. We assume that EVs may also be recharged en route, and the amount of energy recharged at a recharging station (RS) is a decision variable itself, that is, partial recharges are ...
Maurizio Bruglieri   +3 more
wiley   +1 more source

A Microkrystite from the Australasian Tektite/Microtektite Strewn Field

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Microkrystites are glassy impact spherules. They contain primary crystallites carrying information on the physical and chemical conditions prevailing during vaporization, melting, and ejection in large impact cratering events. We report on the geochemistry and mineralogy down to nanometer scale of the first microkrystite (ODP1144A,14) from the
Matteo Del Rio   +4 more
wiley   +1 more source

Noticias y actividades del departamento [PDF]

open access: yes, 1981
Eventos Regionales El Departamento de Matemáticas de la Universidad Nacional continua prestando su apoyo a la realización de actividades matemáticas en las diferentes ciudades del país.
Boletín de, Matemáticas
core  

INCONSISTENCIAS MATEMÁTICAS Y CONCEPTUALES EN LAS FINANZAS: PEQUEÑA ANTOLOGÍA

open access: yesDictamen Libre, 2019
El lenguaje matemático cotidiano utilizado, para referirse a los fenómenos y las cosas que contabilizamos, requiere claridad conceptual y precisión para lograr expresar lo que se desea; la matemática se utiliza como herramienta auxiliar en muchas ...
CARLOS HUGO ANGARITA CALLE
doaj   +1 more source

Home - About - Disclaimer - Privacy