Results 31 to 40 of about 514,152 (162)

Unveiling the “Gray Zone”: Characterizing Young People's Moderate STEM Identities

open access: yesJournal of Research in Science Teaching, Volume 63, Issue 7, Page 691-711, September 2026.
ABSTRACT Understanding how students identify with STEM (Science, Technology, Engineering, Mathematics) is crucial for fostering broader and more equitable participation within these fields. While existing research has focused on students who either strongly identify with STEM or disengage from it, this study explores the moderate STEM identities of ...
Carme Grimalt‐Álvaro   +2 more
wiley   +1 more source

Alternativas de Aprendizagem da Matemática no Ensino Fundamental [PDF]

open access: yes, 2014
Trabalho apresentado no 31º SEURS - Seminário de Extensão Universitária da Região Sul, realizado em Florianópolis, SC, no período de 04 a 07 de agosto de 2013 - Universidade Federal de Santa Catarina.O presente trabalho relata o desenvolvimento de ...
Rachelli, Janice, Coelho, Sergio Junior
core  

High Relative Accuracy Computations With Covariance Matrices of Order Statistics

open access: yesMathematical Methods in the Applied Sciences, Volume 49, Issue 11, Page 11794-11810, 30 July 2026.
ABSTRACT In many statistical applications, numerical computations with covariance matrices need to be performed. The error made when performing such numerical computations increases with the condition number of the covariance matrix, which is related to the number of variables and the strength of the correlation between the variables. In a recent work,
Juan Baz   +3 more
wiley   +1 more source

Analysis and reliability of separable systems

open access: yesOperations Research Perspectives, 2021
The operation of a system, such as a vehicle, communication network or automatic process, heavily depends on the correct operation of its components.
Héctor Cancela   +3 more
doaj   +1 more source

Inference on a Stochastic Bass Model for New Product Adoption

open access: yesApplied Stochastic Models in Business and Industry, Volume 42, Issue 4, July/August 2026.
ABSTRACT This paper investigates stochastic versions of the classical Bass diffusion model, with a focus on the development and comparison of parameter estimation procedures. Two stochastic processes that generalize the classical Bass model, which is commonly used to describe sales dynamics in emerging markets, are considered.
Giuseppina Albano   +3 more
wiley   +1 more source

Workshop inclusão matemática [PDF]

open access: yes, 2014
Trabalho apresentado no 31º SEURS - Seminário de Extensão Universitária da Região Sul, realizado em Florianópolis, SC, no período de 04 a 07 de agosto de 2013 - Universidade Federal de Santa Catarina.Através do projeto Soluções Acessíveis no IFRS ...
Mello, Kelen   +2 more
core  

Identificación de una Bifurcación de Hopf con o sin Parámetros

open access: yesRevista de Ciencias, 2017
En este trabajo se presenta los lineamientos teóricos que identifica la existencia de una bifurcación genérica de Hopf, con o sin parámetros, a través de un punto o una línea de puntos de equilibrio para un sistema dinámico continúo.
Christian Camilo Cortés García
doaj   +1 more source

Modeling Patterns of Population Exposure With a Multiscale Framework Utilizing LOTOS‐EUROS Chemical Transport Model, Mobility Surveys and Particulate Toxicity

open access: yesGeoHealth, Volume 10, Issue 7, July 2026.
Abstract The present study proposes a high‐resolution, multi‐component framework to estimate human exposure to air pollution in tropical urban environments, addressing complex topography and limited historical mobility and exposure data. This framework is applied to the city of Medellín in the Aburrá Valley in Colombia. To assess population exposure to
Valeria Solórzano‐Araque   +8 more
wiley   +1 more source

A matemática na educação infantil - 3ª edição [PDF]

open access: yes, 2014
Trabalho apresentado no 31º SEURS - Seminário de Extensão Universitária da Região Sul, realizado em Florianópolis, SC, no período de 04 a 07 de agosto de 2013 - Universidade Federal de Santa Catarina.Este trabalho é fruto da terceira edição de um projeto
Menestrina, Tatiana   +5 more
core  

Mangrove expansion in a large river delta is dependent on foreshore geomorphology

open access: yesJournal of Applied Ecology, Volume 63, Issue 7, July 2026.
Our findings provide guidance for large‐scale mangrove restoration, particularly in tropical river deltas, by identifying sites where (1) mangroves can potentially expand in the future, and (2) conditions are favourable for active mangrove seedling planting. The presence of a mudflat in front of existing mangroves is not sufficient.
Maria‐Esther Espinoza‐Celi   +7 more
wiley   +1 more source

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