Results 61 to 70 of about 4,190,654 (336)

Real‐World Performance of CSF Kappa Free Light Chains in the 2024 McDonald Criteria

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Kappa free light chains (KFLCs) in the cerebrospinal fluid (CSF) have a similar performance to CSF‐restricted oligoclonal bands (OCB) for multiple sclerosis (MS) diagnosis. To help with implementation, we set out to resolve several remaining uncertainties: (1) performance in a real‐world cohort and the 2024 McDonald criteria; (2 ...
Maya M. Leibowitz   +11 more
wiley   +1 more source

Introduction of Volume IX Issue 1

open access: yesWOW Stories, 2021
An introduction to WOW Stories Volume IX, Issue 1. This issue presents readers with a range of articles that demonstrate how, through engagement with global literature, students and teachers draw upon personal experiences and beliefs, implement ...
Tracy L. Smiles
doaj  

Comparison and Effect of Persistent Character and Mathematical Process Skills on Fractional Computing Operation Materials in Elementary School

open access: yesJournal of Innovation in Educational and Cultural Research, 2023
To be able to understand a mathematical problem and be able to express thoughts and arguments, and provide solutions to a problem, students need to have persistent character and mathematical processing skills. This study aims to find out whether there is
Kamid Kamid   +6 more
doaj   +1 more source

Toward a Semiotic Framework for Using Technology in Mathematics Education: The Case of Learning 3D Geometry [PDF]

open access: yes, 2004
This paper proposes and examines a semiotic framework to inform the use of technology in mathematics education. Semiotics asserts that all cognition is irreducibly triadic, of the nature of a sign, fallible, and thoroughly immersed in a continuing ...
Nason, Rodney, Yeh, Andy
core   +1 more source

C. S. Peirce and the Square Root of Minus One: Quaternions and a Complex Approach to Classes of Signs and Categorical Degeneration [PDF]

open access: yes, 2017
The beginning for C. S. Peirce was the reduction of the traditional categories in a list composed of a fundamental triad: quality, respect and representation.
Venancio, Rafael Duarte Oliveira
core   +1 more source

A Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
Block Diagram of the Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller. ABSTRACT This article introduces a discrete‐time robust adaptive one‐sample‐ahead preview super‐twisting sliding mode controller. A stability analysis of the controller by Lyapunov criteria is developed to demonstrate its robustness in handling both ...
Guilherme Vieira Hollweg   +5 more
wiley   +1 more source

An Improved Complex-Valued Recurrent Neural Network Model for Time-Varying Complex-Valued Sylvester Equation

open access: yesIEEE Access, 2019
Complex-valued time-varying Sylvester equation (CVTVSE) has been successfully applied into mathematics and control domain. However, the computation load of solving CVTVSE will rise significantly with the increase of sampling rate, and it is a challenging
Lei Ding   +5 more
doaj   +1 more source

ERRORS ANALYSIS OF STUDENTS IN SOLVING VOLUME OF THE SOLID OF REVOLUTION PROBLEM IN TERM OF CRITICAL THINKING ASPECTS

open access: yesKalamatika, 2020
Students of mathematics education need to have a good understanding in solving integral calculus problems, but often have difficulty in understanding the subject material.
Betty Kusumaningrum   +2 more
doaj   +1 more source

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

open access: yesAdvanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat   +6 more
wiley   +1 more source

The Exponential Function Meaning on Mathematical Modeling Activities: A Semiotic Approach

open access: yesREDIMAT, 2018
In this article we present a reflection on the meaning attribution to the mathematical object exponential function that emerges from two mathematical modelling activities.
Karina Alessandra Pessoa da Silva   +1 more
doaj   +1 more source

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