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Mathematics

W. T. Gowers • Oxford University Press eBooks (2002)

The aim of Mathematics: A Very Short Introduction is to explain, carefully but not technically, the differences between advanced, research-level mathematics, and the sort of mathematics we learn at school. It offers readers an insight into ...

OPENALEX DOI: https://doi.org/10.1093/actrade/9780192853615.001.0001

Mathematics and Reality

Stewart Shapiro • Philosophy of Science (1983)

The subject of this paper is the philosophical problem of accounting for the relationship between mathematics and non-mathematical reality. The first section, devoted to the importance of the problem, suggests that many of the reasons for e...

OPENALEX DOI: https://doi.org/10.1086/289138

Mathematical Ideas in Biology

John Maynard Smith • Cambridge University Press eBooks (1968)

This is a lucid introduction to some of the mathematical ideas which are useful to biologists. Professor Maynard Smith introduces the reader to the ways in which biological problems can be expressed mathematically, and shows how the mathema...

OPENALEX DOI: https://doi.org/10.1017/cbo9780511565144

Numerical Modal Analysis of Vibrations in a Three-Phase Linear Switched Reluctance Actuator

José Salvado, Maria do Rosário Calado, António Espírito Santo, Anna Guerman • Modelling and Simulation in Engineering (2017)

This paper addresses the problem of vibrations produced by switched reluctance actuators, focusing on the linear configuration of this type of machines, aiming at its characterization regarding the structural vibrations. The complexity of t...

DOAJ Open Access (DOAJ) DOI: 10.1155/2017/3258376

A compact model for the home healthcare routing and scheduling problem

Roberto Montemanni, Sara Ceschia, Andrea Schaerf • EURO Journal on Computational Optimization (2025)

Home healthcare has become more and more central in the last decades, due to the advantages it can bring to both healthcare institutions and patients. Planning activities in this context, however, presents significant challenges related to ...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.ejco.2024.100101

On practical ℎ-observer design for nonlinear non-autonomous dynamical systems with disturbances

Manel Alaya, Hanen Damak, Nizar Hadj Taieb, Mohamed Ali Hammami • Archives of Control Sciences (2024)

In this paper, a particular form of practical ℎ-observers for piecewise continuous Lipschitz, one-sided piecewise continuous Lipschitz systems and quasi-one-sided piecewise continuous Lipschitz systems is extended to nonlinear non-autonomou...

DOAJ Open Access (DOAJ) DOI: https://doi.org/10.24425/acs.2024.153106

The causal ordering of mathematics anxiety and mathematics achievement: a longitudinal panel analysis

Xin Ma, Jiangming Xu • Journal of Adolescence (2003)

Using data from the Longitudinal Study of American Youth (LSAY), we aimed to determine the causal ordering between mathematics anxiety and mathematics achievement. Results of structural equation modelling showed that, across the entire juni...

OPENALEX DOI: https://doi.org/10.1016/j.adolescence.2003.11.003

The Mathematics of Infectious Diseases

Herbert W. Hethcote • SIAM Review (2000)

Abstract. Many models for the spread of infectious diseases in populations have been analyzed mathematically and applied to specific diseases. Threshold theorems involving the basic reproduction number [Formula: see text], the contact numbe...

OPENALEX DOI: https://doi.org/10.1137/s0036144500371907

Refining the Galerkin method error estimation for parabolic type problem with a boundary condition

Mamatov Alisher, Narjigitov Xusanboy, Turdibayev Dilshod, Rakhmanov Jamshidbek • E3S Web of Conferences (2021)

The article considers a parabolic-type boundary value problem with a divergent principal part, when the boundary condition contains the time derivative of the required function: { ut−d/dxiai(x,t,u,∇u)+a(x,t,u,∇u)=0,a0ut+ai(x,t,u,∇u)cos(v,...

DOAJ Open Access (DOAJ) DOI: 10.1051/e3sconf/202130403019

Solar heat transport analysis of Falkner Skan Casson ternary hybrid nanoparticles over a permeable wedge

Khan Mohsin, Sheheryar Shah, Amra Al Kenany, Meshal Shutaywi et al. • Discover Nano (2026)

Abstract In the modern era, energy has become a vital concern across all sectors, while efficient energy generation remains a significant challenge for scientists and engineers. To overcome this issue, researchers have developed ternary hyb...

DOAJ Open Access (DOAJ) DOI: 10.1186/s11671-026-04821-1

New Insights into Cd<sup>2+</sup>/Fe<sup>3+</sup> Co-Doped BiOBr for Enhancing the Photocatalysis Efficiency of Dye Decomposition under Visible-Light

Hong Sheng, Wei Wang, Rong Dai, Jing Ning et al. • Nanomaterials (2021)

Uniform flowerlike microspheres Cd2+/Fe3+ co-doped BiOBr were prepared with the aid of the microwave hydrothermal process. The results indicate that the degradation performance of Bi1−xCdxOBr and Bi1−xFexOBr are 1.31 and 2.05 times that of ...

DOAJ Open Access (DOAJ) DOI: 10.3390/nano11020423

Further Results on a Curious Arithmetic Function

Long Chen, Kaimin Cheng, Tingting Wang • Journal of Mathematics (2020)

Let p be an odd prime number and n be a positive integer. Let vpn, N∗, and Q+ denote the p-adic valuation of the integer n, the set of positive integers, and the set of positive rational numbers, respectively. In this paper, we introduce an...

DOAJ Open Access (DOAJ) DOI: 10.1155/2020/1894162

Mathematics and Plausible Reasoning

George Pólya • CERN Document Server (European Organization for Nuclear Research) (1954)

This is a guide to the practical art of plausible reasoning, this book has relevance in every field of intellectual activity. Professor Polya, a world-famous mathematician from Stanford University, uses mathematics to show how hunches and g...

OPENALEX

The Effects of the Weak Allee Effect and Disease on the Dynamics of a Predator–Prey System: Stability and Bifurcation Properties

Yurong Dong, Hua Liu, Jianhua Ye, Gang Ma et al. • Axioms (2025)

In this paper, an eco-epidemiological model with a weak Allee effect and prey disease dynamics is discussed. Mathematical features such as non-negativity, boundedness of solutions, and local stability of the feasible equilibria are discusse...

DOAJ Open Access (DOAJ) DOI: 10.3390/axioms14070531

Analysis of amplitude domain characteristics in complex dynamic power signals and their impact on the error of electricity meter

LI Wenwen, YUAN Ruiming, ZHOU Hui, WANG Guoxing et al. • Diance yu yibiao (2026)

Aiming at the influence of the fast, large range and random change of dynamic load current on the electricity metering, this paper firstly establishes a non-stationary random process modulation model and bimodal modulation model for complex...

DOAJ Open Access (DOAJ) DOI: 10.19753/j.issn1001-1390.2026.01.020

Cooperation-Based Modeling of Sustainable Development: An Approach from Filippov’s Systems

Jorge A. Amador, Johan Manuel Redondo, Gerard Olivar‐Tost, Christian Erazo • Complexity (2021)

The concept of Sustainable Development has given rise to multiple interpretations. In this article, it is proposed that Sustainable Development should be interpreted as the capacity of territory, community, or landscape to conserve the noti...

DOAJ Open Access (DOAJ) DOI: 10.1155/2021/4249106