Results 111 to 120 of about 421,782 (322)

Affective domain and mathematics achievement of Colombian students under multiple correspondence analysis

open access: yesFrontiers in Education
The literature review indicates that age is a variable related to the students' affect toward mathematics in such a way that the older they are, the less affection they feel for mathematics.
Raúl Prada Núñez   +3 more
doaj   +1 more source

Zonal Functions on $SO(p,q)$ Groups [PDF]

open access: yesarXiv, 2003
Explicit expressions for zonal spherical functions of $SO(p,q)$ matrix groups are obtained using a generalized hypergeometric series of two variables.
arxiv  

A mathematical model of epidemics with screening and variable infectivity

open access: yesMathematical and Computer Modelling, 1995
Two models for the dynamics of an epidemic of S-I-R type are described in which the active population is randomly screened. Infectivity is not required to be constant in one of them. The positive screened individuals move into the class of ''removed'' together with the immune. Global existence and uniqueness results are established.
Mi-Young Kim, Fabio A. Milner
openaire   +2 more sources

Environmentally Stable and Highly Crystalline MXenes for Multispectral Electromagnetic Shielding up to Millimeter Waves

open access: yesAdvanced Functional Materials, EarlyView.
This study presents excellent EMI shielding effectiveness of highly crystalline HC‐Ti3C2Tx MXene, characterized by high electrical conductivity, outstanding environmental stability, and facile processability, across a multispectral frequency range from 100 kHz to 110 GHz. It is revealed that increasing the thickness and electrical conductivity of MXene
Aamir Iqbal   +13 more
wiley   +1 more source

Longitudinal PLS-SEM analysis of the performance and participation of students in mathematics

open access: yesAIMS Mathematics
The mathematics performance of Australian high-school students in Year 9 and their participation in mathematics subjects in Year 12 has plummeted in the last 20 years.
Ali Rashash R. Alzahrani
doaj   +1 more source

Associated functions on $SO(p,q)$ Groups [PDF]

open access: yesarXiv, 2003
Explicit expressions for associated spherical functions of $SO(p,q)$ matrix groups are obtained using a generalized hypergeometric series of two variables.
arxiv  

Direct Ink Writing of Conductive Hydrogels

open access: yesAdvanced Functional Materials, EarlyView.
This review examines the use of direct ink writing (DIW) for fabricating conductive hydrogels with customizable 3D structures. It outlines the rheological requirements for successful DIW, followed by an exploration of the materials and ink formulations used to impart electronic and/or ionic conductivity to hydrogels while maintaining printability ...
Monica Ho   +6 more
wiley   +1 more source

On analytic solutions to NSE in 3-D torus [PDF]

open access: yesarXiv, 2003
We consider NSE with $H^1$-initial conditions on the 3-dimensional torus and prove that there exists a solution that is analytic in all variables.
arxiv  

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