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On Combined Maximal Precedence–Exceedance Test with Application to HIV Clinical Trials

Sylvester Sebola, Niladri Chakraborty, Morné Rowan Sjölander • Mathematics (2026)

This paper proposes a combined maximal precedence–exceedance test (MPErs) that integrates maximal precedence and maximal exceedance statistics tests to provide sensitivity to both early and late distributional differences between two sample...

DOAJ Open Access (DOAJ) DOI: 10.3390/math14203658

Beyond airborne spread: a dual-route Wells-Riley extension for estimating norovirus infection risk in Ghanaian pediatric wards

Jennifer Belt Antwi, Nana Kena Frempong • Mathematics in Medical and Life Sciences (2026)

Background: The classic Wells–Riley model (CWRM) is a well-established framework for estimating airborne infection risk in shared indoor environments. This study extends the framework to simultaneously incorporate fecal–oral transmission, a...

DOAJ Open Access (DOAJ) DOI: 10.1080/29937574.2026.2714847

Mathematical Modeling of Leptospirosis With Misdiagnosis

Japheth Musingila Mwongela, Caroline Kanyiri, Virginia Kitetu • Journal of Applied Mathematics (2026)

Leptospirosis is a widespread zoonotic bacterial disease that continues to pose a major public health challenge, particularly in developing countries where it causes substantial morbidity, mortality, and economic losses. A key problem in co...

DOAJ Open Access (DOAJ) DOI: 10.1155/jama/5513951

Entropy Measures for Plithogenic Sets and Applications in Multi-Attribute Decision Making

Shio Gai Quek, Ganeshsree Selvachandran, Florentin Smarandache, J. Vimala et al. • Mathematics (2020)

Plithogenic set is an extension of the crisp set, fuzzy set, intuitionistic fuzzy set, and neutrosophic sets, whose elements are characterized by one or more attributes, and each attribute can assume many values. Each attribute has a corres...

DOAJ Open Access (DOAJ) DOI: 10.3390/math8060965

Optimality conditions in multiobjective programming models with semi-infinite constraints using generalized (h,φ)-G-type I functions

Tareq Saeed, Vinay Singh, Savin Treanţă, Solomon Lalmalsawma • Results in Control and Optimization (2024)

In this paper, we introduce a new class of generalized (h,φ)-G-type I vector-valued functions, by combining the notions of (h,φ)-differentiable functions, G-invex functions, and type I functions. By using these new concepts, we formulate an...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.rico.2024.100395

Extremes of Product of Gaussian Random Variables

Džiugas Chvoinikov, Svyatoslav Novikov, Jonas Šiaulys • Axioms (2026)

We investigate the asymptotic behavior of the product of Gaussian random variables, with a focus on tail probabilities. Although sums of normal variables are well understood through classical limit theorems, their products exhibit significa...

DOAJ Open Access (DOAJ) DOI: 10.3390/axioms15060425

The impact of preservation technology investments on lot-sizing and shipment strategies in a three-echelon food supply chain involving growing and deteriorating items

Makoena Sebatjane • Operations Research Perspectives (2022)

Food production systems are complex industrial operations that often involve multiple parties. This study proposes inventory management strategies for a multi-echelon perishable food supply chain with growing and deteriorating items. The up...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.orp.2022.100241

Modulation Instability and Abundant Exact Solitons to the Fractional Mathematical Physics Model Through Two Distinct Methods

Abdulaziz Khalid Alsharidi, Ahmet Bekir • Axioms (2025)

The paper consists of various types of wave solutions for the truncated M-fractional Bateman–Burgers equation, a significant mathematical physics equation. This model describes the nonlinear waves and solitons in different physical fields s...

DOAJ Open Access (DOAJ) DOI: 10.3390/axioms14080617

Optimization of cationic nanoparticles stabilized by poloxamer 188: A potential approach for improving the biological activity of Aloe perryi

Tahany Saleh Aldayel, Mohamed M. Badran, Abdullah H. Alomrani, Nora A. AlFaris et al. • Heliyon (2023)

Aloe perryi (AP) has gained considerable interest as a medicinal herb in various biological applications due to its rich phytochemical composition. However, the therapeutic benefits of AP could be potentiated by utilizing nanotechnology. Mo...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.heliyon.2023.e22691

On the Relationship between Jordan Algebras and Their Universal Enveloping Algebras

F. B. H. Jamjoom, A. H. Al Otaibi • International Journal of Mathematics and Mathematical Sciences (2020)

The relationship between JW-algebras (resp. JC-algebras) and their universal enveloping von Neumann algebras (resp. C∗-algebras) can be described as significant and influential. Examples of numerous relationships have been established. In t...

DOAJ Open Access (DOAJ) DOI: 10.1155/2020/6976084