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Academic Articles & Research Papers
Showing 20 of 2,192 academic articles
Sri Suryanti, Toto Nusantara, I Nengah Parta, Santi Irawati • JTAM (Jurnal Teori dan Aplikasi Matematika)
(2023)
Mathematics education and teaching should not only include routine tasks; but tasks that need practice and memorization are mathematically more prosperous and more difficult because they promote problem-solving, investigation, and the disco...
DOAJ
Open Access (DOAJ)
DOI: 10.31764/jtam.v7i2.12864
Saritha Kodikara, Kim-Anh Lê Cao • Microbiome
(2025)
Abstract Background The microbiome is a complex ecosystem of interdependent taxa that has traditionally been studied through cross-sectional studies. However, longitudinal microbiome studies are becoming increasingly popular. These studies ...
DOAJ
Open Access (DOAJ)
DOI: 10.1186/s40168-025-02041-w
Bas van Geffen, Bart Jansen, Arnoud de Kroon, Rolf Morel • Journal of Graph Algorithms and Applications
(2020)
Many combinatorial problems can be solved in time $\mathcal{O}^*(c^{\mathrm{tw}})$ on graphs of treewidth $\mathrm{tw}$, for a problem-specific constant $c$. In several cases, matching upper and lower bounds on $c$ are known based on the St...
DOAJ
Open Access (DOAJ)
DOI: 10.7155/jgaa.00542
Yudong Li, Tianyu Zhang, Yujun Zhang • Journal of Applied Mathematics
(2014)
This paper deals with the control problem of the chaotic system subject to disturbance. The sliding mode surface is designed by singular system approach, and sufficient condition for convergence is given. Then, the adaptive sliding mode con...
DOAJ
Open Access (DOAJ)
DOI: 10.1155/2014/580105
Paul Dowling (1998)
Until the 1960s, maths was studied as an academic subject in a desire to have more mathematicians. The current trend, however, has moved away from viewing maths as a purely intellectual endeavour and towards developing a more mathematically...
OPENALEX
Darman Agung Sandakila, Gracetia Devita Hadi, Riska Gultom, Seni Samalele et al. • Aceh Journal of Animal Science
(2024)
The Black Soldier Fly (Hermetia illucens L.) or BSF is one of a group of insects that has a length of 15-20 mm originating from America. The larvae of the BSF has a high protein content (44.26%), which has great potential in treating wound ...
DOAJ
Open Access (DOAJ)
DOI: 10.13170/ajas.9.3.42024
Weike Lu, Feng Wang, Lan Liu, Guojing Hu et al. • Transport
(2021)
Planning for a bus-based regional evacuation is essential for emergency preparedness, especially for hurricane or flood prone urban environments with large numbers of transit-dependent or transit-captive populations. This paper develops an ...
DOAJ
Open Access (DOAJ)
DOI: 10.3846/transport.2020.13674
Rhomiy Handican, Wahyu Setyaningrum • Edumatika
(2021)
The widespread use of smartphones to play games and the lack of use as a medium for learning mathematics is the reason for the need for the development of smartphone-based edutainment learning media. The purpose of this research is to desig...
DOAJ
Open Access (DOAJ)
DOI: 10.32939/ejrpm.v4i1.607
Bed Raj Acharya • International Journal of Elementary Education
(2017)
This article explores the adversities faced by public school students in learning mathematics in their leaning context. The main purpose of this study was to explore the causes of learning difficulties in mathematics. The design of the stud...
OPENALEX
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DOI: https://doi.org/10.11648/j.ijeedu.20170602.11
Gary E. Meek, William M. Mendenhall, Richard L. Scheaffer, Dennis D. Wackerly • Technometrics
(1987)
This calculus-based book presents a blend of theory and application. It focuses on inference making as the goal of studying probability and statistics, and features an emphasis on real-life applications of the mathematically divided techniq...
OPENALEX
DOI: https://doi.org/10.1080/00401706.1987.10488256
Shewafera Wondimagegnhu Teklu, M. A. Abdelkawy, Waleed Adel • Complexity
(2026)
Misinformation spreads through communities in ways that resemble infectious diseases, but existing mathematical models often miss three real-world complexities: People remember past information (memory effects), some folks are more easily f...
DOAJ
Open Access (DOAJ)
DOI: 10.1155/cplx/8861194
Subhas Khajanchi, Kankan Sarkar, Jayanta Mondal, Kottakkaran Sooppy Nisar et al. • Results in Physics
(2021)
Mathematical modeling plays an important role to better understand the disease dynamics and designing strategies to manage quickly spreading infectious diseases in lack of an effective vaccine or specific antivirals. During this period, for...
DOAJ
Open Access (DOAJ)
DOI: 10.1016/j.rinp.2021.104285
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
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
Mete Özbaltan, Nicolas Berthier • Archives of Control Sciences
(2021)
We devise a tool-supported framework for achieving power-efficiency of data-flowhardware circuits. Our approach relies on formal control techniques, where the goal is to compute a strategy that can be used to drive a given model so that it ...
DOAJ
Open Access (DOAJ)
DOI: https://doi.org/10.24425/acs.2021.137426
Christian Greiffenhagen • British Journal of Sociology
(2014)
Sociology has been accused of neglecting the importance of material things in human life and the material aspects of social practices. Efforts to correct this have recently been made, with a growing concern to demonstrate the materiality of...
OPENALEX
Open Access
DOI: https://doi.org/10.1111/1468-4446.12037
Hao CHEN, Feng WANG, Weiming ZHANG, Nenghai YU • 网络与信息安全学报
(2022)
With the development of multimedia techniques, the demand for copyright protection of digital products has also gradually risen.Digital watermarking is an effective means to protect the copyright of digital products.It is generally made by ...
DOAJ
Open Access (DOAJ)
Oswaldo Jesús Martínez Padrón, María Luisa Oliveras • Revista Latinoamericana de Etnomatemática
(2015)
This paper narrates facts and consequences of a course focused on Interculturality and Ethnomathematics developed in a Venezuelan Pedagogical University. The reflection is centered on Ethnomathematics and the development of "curricular ethn...
DOAJ
Open Access (DOAJ)
Kathryn Crawford, Sue Gordon, Jackie Nicholas, Michael Prosser • Studies in Higher Education
(1998)
A Conceptions of Mathematics Questionnaire was developed, designed to provide an indicator of the nature of students' conceptions of the subject matter they were studying. The scales of the questionnaire were based upon a set of conceptions...
OPENALEX
DOI: https://doi.org/10.1080/03075079812331380512
Yongchao Duan, Rui Yang, Ming Zhao, Mingrui Qi et al. • Mathematics
(2025)
Segmentation of retinal vessels from fundus images is critical for diagnosing diseases such as diabetes and hypertension. However, the inherent challenges posed by the complex geometries of vessels and the highly imbalanced distribution of ...
DOAJ
Open Access (DOAJ)
DOI: 10.3390/math13091454