Finding of the Metric Operator for a Quasi-Hermitian Model by Ebru Ergun

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On the approximation by trigonometric polynomials in weighted Lorentz spaces by Vakhtang Kokilashvili, Yunus E. Yildirir

“…We obtain estimates of structural characteristics of 2π-periodic functions by the best trigonometric approximations in weighted Lorentz spaces, and show that the order of generalized modulus of smoothness depends not only on the rate of the best approximation, but also on the metric of the spaces. …”
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Schauder-Tychonoff Fixed-Point Theorem in Theory of Superconductivity by Mariusz Gil, Stanisław Wędrychowicz

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On Solutions of Fractional Order Boundary Value Problems with Integral Boundary Conditions in Banach Spaces by Hussein A. H. Salem, Mieczysław Cichoń

“…We stress on single and multivalued problems for which the nonlinear term is assumed only to be Pettis integrable and depends on the fractional derivative of an unknown function. …”
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On composition operators in QK type spaces by Marko Kotilainen

“…With a different choice of p, q, K, the Banach space QK(p,q) coincides with many well-known analytic function spaces. Boundedness and compactness of the composition operator Cφ from α-Bloch space Bα into QK(p,q) are characterized by a condition depending only on analytic mapping φ:𝔻→𝔻. …”
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Sharp Inequalities for the Haar System and Fourier Multipliers by Adam Osȩkowski

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Fractional integrals and hypersingular integrals in variable order Hölder spaces on homogeneous spaces by Natasha Samko, Stefan Samko, Boris Vakulov

“…We consider non-standard Hölder spaces Hλ(⋅)(X) of functions f on a metric measure space (X, d, μ), whose Hölder exponent λ(x) is variable, depending on x ∈ X. …”
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Manipulating Resistance Exercise Variables to Improve Jumps, Sprints, and Changes of Direction in Soccer: What We Know and What We Don’t Know by Sandro Bartolomei, Marco Beato, Giuseppe Coratella

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Cardiovascular Diseases, Vital Organ Fibrosis, and Chronic Inflammation Associated with High-Intensity and/or High-Volume Exercise Training: Double-Edged Sword Effects of Vigorous... by Pierre A. Guertin

“…In conclusion, high-intensity training (HIT) and/or high-volume training (HVT) should not be recommended for middle-age and elderly people who have had cancer therapies or not in order to avoid an exacerbation of the consequences of aging or long-term cancer treatment effects on vital organ structures and functions.…”
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Sensory Processing Sensitivity and Its Relation to Exercise Behavior and Preferred Exercise Intensity by Benjamin Lee Webb

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Spine Kinematics Behavior During the Handstand Posture: A Biplanar Radiographic Analysis by Camille Eyssartier, Pierre Billard, Patricia Thoreux, Christophe Sauret

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Impact of Exercise Modalities on Upper Extremity Spasticity in an Adult with Quadriplegic Cerebral Palsy: A Case Report by Juntack Oh, Michele Aquino

“…While exercise is known to enhance fitness and motor function in individuals with CP, its specific efficacy in reducing upper extremity spasticity remains insufficiently studied. …”
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Strength Proxies Explain Balance Task Performance by Proximity to Peak Height Velocity in Young Acrobatic Gymnasts by Ignacio Gómez-Dolader, Alejandro Martínez-Cruces, Pureza Leal-del-Ojo, Luis Arturo Gómez-Landero

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Early Specialization and Progress of Finalist Swimmers in World Championships and Olympic Games by Inmaculada Yustres Amores, Jesús Santos del Cerro, Víctor Rodrigo Carranza, Francisco Hermosilla-Perona

“…Explanatory models of the z scores were estimated from age depending on the events’ distances and strokes. Quadratic regression models were developed to capture the behavior of the variable time with parabolic functions, and the significance of the global model and the predictor variables (age) were also evaluated. …”
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Psychometric Characteristics of Smartphone-Based Gait Analyses in Chronic Health Conditions: A Systematic Review by Tobias Bea, Helmi Chaabene, Constantin Wilhelm Freitag, Lutz Schega

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Sensory Modality in Students Enrolled in a Specialized Training Program for Security Forces and Its Impact on Karate Performance Indicators by Ivan Uher, Ján Pivovarník, Mária Majherová

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Effect of Post-Activation Performance Enhancement in Combat Sports: A Systematic Review and Meta-Analysis—Part I: General Performance Indicators by Artur Terbalyan, Karol Skotniczny, Michał Krzysztofik, Jakub Chycki, Vadim Kasparov, Robert Roczniok

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Optimizing Recovery Strategies in Elite Speedskating: A Comparative Analysis of Different Modalities by Tomasz Kowalski, Kinga Rębiś, Jadwiga Malczewska-Lenczowska, Andrzej Klusiewicz, Michał Starczewski, Sebastian Klich, Przemysław Kasiak

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The Effects of Reverse Nordic Exercise Training on Measures of Physical Fitness in Youth Karate Athletes by Raja Bouguezzi, Senda Sammoud, Yassine Negra, Younés Hachana, Helmi Chaabene

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Reliability of Muscle Oxygen Saturation for Evaluating Exercise Intensity and Knee Joint Load Indicators by Aldo A. Vasquez-Bonilla, Rodrigo Yáñez-Sepúlveda, Matías Monsalves-Álvarez, Marcelo Tuesta, Daniel Duclos-Bastías, Guillermo Cortés-Roco, Jorge Olivares-Arancibia, Eduardo Guzmán-Muñoz, José Francisco López-Gil

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