25.05.2026
Springer Science and Business Media LLC
The Relationship of Kinetic and Kinematic Variables With Countermovement Jump Performance in Elite Team Sport Athletes
Abstract
Background
The countermovement jump (CMJ) is widely used to assess neuromuscular performance in athletes; however, limited research has examined the integrated relationships between phase-specific kinetic and kinematic variables and performance outcomes in team-sport athletes. Therefore, the primary aim of this study was to investigate the associations between kinetic, kinematic, and performance variables during the CMJ. A secondary aim was to compare these variables between...
Pročitajte više...
22.05.2026
MDPI AG
Rainfall Erosivity Dynamics in a Tropical Basin: Integration of Rain Gauge Data and Satellite-Based Precipitation
This study evaluated the spatial and temporal variability of rainfall erosivity (R factor) and its implications for soil loss in the Velhas River Basin, Minas Gerais, Brazil. Rainfall erosivity was estimated from 49 rain gauge stations and CHIRPS precipitation data using empirical equations-based on monthly and annual precipitation totals. Soil loss was estimated using the RUSLE model for the years of minimum and maximum erosivity. Between 2014 and 2024, annual R values ranged from approximately...
Pročitajte više...
Felipe G. Rubira
,
Marcelo A. R. Pires
,
Guilherme d. S. Rios
,
Mariana Raniero
,
Fellipe S. Gomes
,
Velibor Spalevic
,
Victor H. F. d. Silva
,
Ronaldo L. Mincato
,
Joaquim E. B. Ayer
,
Pedro F. R. Grande
,
Derielsen B. Santana
,
Talyson d. M. Bolleli
Preuzmite dokument
2026
21.05.2026
ASME International
On the Equations of Motion for Constrained Systems and Their Stability
Abstract
This paper presents recent advances and reviews several notions on constrained systems that have evolved over the years. It questions several of the ‘received (conventional) views’ on both holonomic and non-holonomic systems and shows their erroneous nature in light of recent developments. By using simple illustrative examples, it draws attention to several key ideas that differ from conventional views on the behavior of constrained systems, and especially their stability....
Pročitajte više...
