Characteristic Model-Based Adaptive Control for a Class of MIMO Uncertain Nonaffine Nonlinear Systems Governed by Differential Equations by Duo-Qing Sun, Xiao-Ying Ma

“…The designed controller exhibits a simple structure that can effectively avoid the controller singularity problem. …”
Get full text

Group-Specific SVM With Bilevel Programming Methods for Parameter Optimization and Explainable AI in Urban Quality of Life Prediction by Gonzalo Rios-Vasquez, Hanns De La Fuente-Mella, Jose Ceroni-Diaz

“…The assessment of urban quality of life (UQoL) is a multidimensional challenge involving socioeconomic, environmental, and infrastructure-related variables that, due to changes in the behavior and structures of social issues, requires robust and effective analytical techniques. …”
Get full text

Mapping Cybersecurity in SMEs: The Role of Ownership and Firm Characteristics in the Silesian Region of Poland by Leoš Šafár, Marek Pekarčik, Patryk Morawiec, Paulina Rutecka, Monika Wieczorek-Kosmala

“…Unlike the majority of cybersecurity literature, our focus is on how ownership structure influences cybersecurity perception. We surveyed 200 SMEs at random within the respective region and utilized hierarchical and simple linear regression analyses to assess the relationships between these factors and financial performance. …”
Get full text

Certain chorioretinal parameters of the eye in congenital and acquired myopia and their relationship with anatomical and optical parameters by E. P. Tarutta, R. R. Khubieva, G. A. Markosyan

“…Correlation analysis was performed using Pearson’s linear correlation coefficient (r).Results. Structural changes in the sensory and vascular membranes of the eye were revealed in both myopic groups as compared to the control group. …”
Get full text

Study on the Dynamic Properties of Concrete under Freeze-Thaw Cycles and CT Fine View Damage by Liangting Wang, Zhishan Zheng, Zheng Xiahou, Xijian Chao, Ming Xia

“…The results showed the following. (1) The concrete specimens were divided into linear elastic stage, plastic stage, and damage stage under the freeze-thaw cycle, and the macroscopic mechanical parameters of the specimens were weakened with the increase of the number of freeze-thaw cycles. (2) Freeze-thaw intensified the expansion and penetration of the internal fracture of the specimens, and the CT scan results showed that the internal fracture parameters of the concrete specimens were increased with the increase of the number of freeze-thaw cycles, and the structural characteristics of the internal fracture show gradually complex expansion and evolution characteristics. (3) The degree of damage was defined at the fine level, which increased with the number of freeze-thaw cycles, establishing an intrinsic link between the fine deterioration of concrete specimens and the loss of macroscopic parameters under freeze-thaw cycles. …”
Get full text

Optimization and Decision-Making for a Service Contract on Machine Maintenance by Zeyu Luo, Zhixin Yang, Jinbiao Wu, Zhaotong Lian

“…The service provider of the machine must determine the optimal pricing structure and staffing levels, while the client selects an appropriate plan for the warranty duration. …”
Get full text

Integrating α-Discounting and Neutrosophic Decision Modeling in University Ideological and Political Education under Party-Building Leadership by Maosen Wang

“…The objective is to reconcile conflicting perspectives—such as party directives, academic values, and student attitudes—within a consistent and mathematically rigorous structure. The methodology allows for modeling imprecise, vague, or uncertain preferences using neutrosophic truth values (T, I, F), which are then incorporated into α-parameterized systems of linear and nonlinear equations. …”
Get full text

Homogenisation of Wasserstein gradient flows by Yuan Gao, Nung Kwan Yip

“…In particular, we show that the gradient-flow structure is preserved in the limit, which is expressed in terms of an effective energy and Wasserstein metric. …”
Get full text

Homogeneous difference schemes for the coupled problems of hydrodynamics and elasticity by I.P. Tsygvintsev, A.Yu. Krukovskiy, Yu.A. Poveshchenko, V.A. Gasilov, D.S. Boykov, S.B. Popov

“…For the displacement vectors at the irregular grids in which topological and geometrical structures are subjected to minimal reasonable restrictions, with regard to the finite-difference schemes of the elasticity theory problems, approximations of the vector analysis operators in plane and cylindrical geometries were constructed. …”
Get full text

Biomechanics over body composition: what matters most in the 40 by Emma Sterne, Chukwudum Okpalaoka, Pavan Patel, Alexa Fraga, Caitlin Kucharski, Pete Bommarito, Monique Mokha

“…Thus, this study aimed to develop a multiple linear regression model to estimate 40-yard run times of NFL draft eligible players undergoing a structured 6-week training program using running biomechanics (GCT, vGRF) and body composition (LMM, BF%) dependent variables.Methods This study was part of a larger investigation into performance monitoring of 75 American football players participating in a 6-week NFL draft preparation training camp. …”
Get full text

Prediction of uniaxial compressive strength of limestone from ball mill grinding characteristics using supervised machine learning techniques by Sahas V. Swamy, Bijay Mihir Kunar, Karra Ram Chandar, Mamdooh Alwetaishi, Shashikumar Krishnan, Sudhakar Reddy

“…Abstract Uniaxial Compressive Strength (UCS) is a fundamental parameter in rock engineering, governing the stability of foundations, slopes, and underground structures. Traditional UCS determination relies on laboratory tests, but these face challenges such as high-quality core sampling, sample preparation difficulties, high costs, and time constraints. …”
Get full text

Theoretical justification of the model of search for optimal solutions in complex resource management systems by Roman A. Khalturin, Roman O. Sudorgin, Nikita S. Akinshin

“…To develop a set of mathematical models for finding optimal solutions in complex resource management systems under uncertainty, required for designing resource allocation structures. Materials and methods. The study employs a combination of mathematical modeling, decision theory, and optimization techniques to address multicriteria problems in complex systems, particularly in resource allocation systems (RR systems) within transport complexes. …”
Get full text

Investments in ICT in the Telecommunications Sector: A Strategic Imperative for Organizational Changes in Response to Market Transformations by Mohammed Sahnouni, Mohammed Kadri

“…This study investigates the relationship between ICT investments and organizational change, based on a survey conducted in early 2025 among 79 employees in the telecommunications sector in Algeria, using a structured questionnaire. Data were analyzed using SPSS software, and simple linear regression was applied to examine the dependencies between ICT investments and organizational transformation variables. …”
Get full text

THE EFFECT OF ORGANIZATIONAL CULTURE, WORK EXPERIENCE, AND MOTIVATION ON EMPLOYEE PERFORMANCE OF PT TIGA SERANGKAI by Charolin Gradia Effendi, Mahathir Muhammad, Defia Riski Anggarini

“…Data were collected through structured questionnaires and analyzed using multiple linear regression analysis. …”
Get full text

Two-stage power system restoration model by Hong Yang, Zhen Tang, Wei Wang, Zhihang Xue

“…The second stage involved a load pick-up model, structured as a mixed-integer linear programming problem, aimed at restoring the load with the assistance of the ESS. …”
Get full text

Features of the Phase Transition in Ni50.9Мn29.43Gа19.67 Single Crystal by Y.B. Skirta, A.L. Sozinov, V.V. Nevdacha

“…The values of jumps of the above mentioned characteristics during martensitic transition depend on the crystallographic direction and ratio between structural domains and c-, and а-, b-axes along this direction.…”
Get full text

Investigating the Factors that Drive the Success of Halal Cloud Kitchen in Bangladesh by Rafiuddin Ahmed, Muhammad Intisar Alam, Maria Sultana, Mahafizur Rahman Jim

“…To achieve this, a structured survey questionnaire was designed and distributed through Google Forms. …”
Get full text

Effects of lifestyle modification counselling on weight and body composition among adults with overweight or obesity on antiretroviral therapy: a randomized controlled trial by Agete Tadewos Hirigo, Moges Derbe, Daniel Yilma, Ayalew Astatkie, Zelalem Debebe

“…The effect of lifestyle modification counselling on weight and body composition was evaluated through linear mixed effects model and multiple linear regression analysis. …”
Get full text

Multipolar Anisotropy in Anomalous Hall Effect from Spin-Group Symmetry Breaking by Zheng Liu, Mengjie Wei, Wenzhi Peng, Dazhi Hou, Yang Gao, Qian Niu

“…For the leading order contribution, i.e., the dipole, its isotropic part corresponds to the traditional view, and its anisotropic part can lead to the in-plane AHE where the magnetization lies within the measurement plane. Beyond the dipolar structure, the octupolar structure offers the leading order source of nonlinearity and hence introduces unique anisotropy where the dipolar structure cannot. …”
Get full text

Influence of the environmental challenges on the resilience of purse seine fisherman in Kutaraja oceanic fishing port, Banda Aceh by Jasnur Syahputra, Sugeng Hari Wisudo, Eko Sri Wiyono, Mustaruddin Mustaruddin

“…A quantitative approach was employed through a survey method, and data were collected from 100 purse seine fishermen using structured questionnaires. The data were analyzed using descriptive and inferential statistics with multiple linear regression models. …”
Get full text