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Articles by Ben Amar
Anxiety, self-confidence, and self-esteem in relation to competitive coping profiles: A multivariate analysis
ORIGINAL RESEARCH article Volume 17 - 2026 | doi: 10.3389/fpsyg.2026.1878214 Reviewed by ORIGINAL RESEARCH article Article metrics View details Abstract Abstract Objective: This study examined the relationships between self-esteem, competitive state anxiety, and coping strategies in Tunisian junior middle- and long-distance runners, with a focus on gender differences. Methods: A cross-sectional design was used with 156 athletes (76 males, 80 females; age: 18–19 years).
The associations between affective states and motivation in Tunisian cross country trained runners
ORIGINAL RESEARCH article Volume 17 - 2026 | doi: 10.3389/fpsyg.2026.1877487 Reviewed by ORIGINAL RESEARCH article Article metrics View details Abstract This study draws on Self-Determination Theory to examine the relationships between motivational regulations and pre-competition affective states in Tunisian adolescent competitive cross-country runners, with consideration of gender differences. A total of 116 athletes participated in the study (56% female; 44% male; M = 16.31 years).
Agricultural Productivity, Green energy, Governance quality and Environmental Degradation in BRICS Economies : Evidence from a PMG-ARDL Analysis
References: Addis, A., Assefa, A., & Teka, Z. (2023). Green energy and environmental degradation in BRICS. Energy Strategy Reviews, 50, 101253. https://doi.org/10.1016/j.esr.2023.101253 Alfaisal, F. M., Al-Zyoud, H., & Al-Ajlouni, M. I. (2025). Green energy, efficiency and sustainability. Renewable Energy, 225, 120432. Aydin, M., & Turan, Y. (2023). The impact of green energy consumption and energy efficiency on environmental sustainability: Evidence from emerging economies. Renewable Energy, 205, 1266–1277.
LIBER LAG 2024 - KBR: a new page - Re-use and Durability in Renovation
Published June 6, 2024 | Version v1 Presentation Open KBR: a new page - Re-use and Durability in Renovation
Corrigendum: The relationship between locus of control and pre-competitive anxiety in highly trained soccer players
Oussama Gaied Chortane1 Imen Ben Amar1* 1Higher Institute of Sport and Physical Education of Ksar Saïd, University of Manouba, Tunisia This article is a correction to: The relationship between locus of control and pre-competitive anxiety in highly trained soccer players Read original article The final, formatted version of the article will be published soon.
State-dependent importance sampling for estimating expectations of functionals of sums of independent random variables
Statistics and Computing, Feb 2023 This is a preview of a remote PDF: https://link.springer.com/content/pdf/10.1007/s11222-022-10202-2.pdf Ben Amar, Eya, Ben Rached, Nadhir, Haji-Ali, Abdul-Lateef, Tempone, Raúl. , Statistics and Computing, 2023, pp. 1-15, Volume 33, Issue 2, DOI: 10.1007/s11222-022-10202-2
Stochasticity and Drug Effects in Dynamical Model for Cancer Stem Cells
This is an early access version, the complete PDF, HTML, and XML versions will be available soon. Open AccessArticle by Ludovico Mori 1,† and Martine Ben Amar 1,2,*,† 1 Laboratoire de Physique de l’Ecole Normale Supérieure, Ecole Normale Supérieure, Université PSL, CNRS, 75005 Paris, France 2 Institut Universitaire de Cancérologie, Faculté de Médecine, Sorbonne Université, 91 Bd de l’Hôpital, 75013 Paris, France * Author to whom correspondence should be addressed.
Instability in dynamic fracture and the failure of the classical theory of cracks
Crack propagation is the main mode of materials failure. It has been a topic of intense research for decades because of its enormous practical importance and fundamental theoretical interest.
Morphogenesis of liquid crystal topological defects during the nematic-smectic A phase transition
When a drop of 8CB is placed on a water surface with a temperature in the isotropic range of 8CB, the LC drop spreads until achieving a uniform thickness. The drop is then cooled to the N phase in which the molecules are subjected to the antagonistic boundary conditions of hybrid alignment32. From top to bottom of the LC film, the director field must rotate by 90° from vertical to horizontal to satisfy these boundary conditions.
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