Results 141 to 150 of about 94,561 (298)

From Stability to Chaos: A Complete Classification of the Damped Klein‐Gordon Dynamics

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT We investigate the transition between stability and chaos in the damped Klein‐Gordon equation, a fundamental model for wave propagation and energy dissipation. Using semigroup methods and spectral criteria, we derive explicit thresholds that determine when the system exhibits asymptotic stability and when it displays strong chaotic dynamics ...
Carlos Lizama, Marina Murillo‐Arcila, Julio Puerta‐Fernández   +2 more
wiley   +1 more source

MoCo + ROVir: Synergy Between Respiratory Motion Compensation and Cardiac Receive Region Focusing for Cardiac MRI

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To improve cardiac motion representation and reduce artifacts for cardiac‐ and respiratory‐resolved imaging through a synergistic combination of retrospective cardiac phased array RF focusing and rigid respiratory motion compensation (MoCo).
Zheyuan Hu, Hsu‐Lei Lee, Tianle Cao, Takegawa Yoshida, Lingceng Ma, J. Paul Finn, Kim‐Lien Nguyen, Anthony G. Christodoulou   +7 more
wiley   +1 more source

Effects of Caffeine on Voluntary Force Estimation During Isometric Exercises. [PDF]

Sports (Basel)
Jiménez-Ormeño E, Giráldez-Costas V, Lara-López B, Menchén-Rubio M, Ruiz-Moreno C.   +4 more
europepmc   +1 more source

Effects of isometric handgrip training in patients with cardiovascular disease: rationale and design of the ISOPRESS network

, 2018
Breno Quintella Farah, Lauro C. Vianna, Sérgio Luiz Cahú Rodrigues, Marília de Almeida Correia, André L. Teixeira, Flávio MD de Andrade, Rodrigo Pinto Pedrosa, Sérgio Rodrigues Moreira, Mauro Virgílio Gomes de Barros, Nelson Wolosker, Gabriel Grizzo Cucato, Raphael Mendes Ritti‐Dias   +11 more
openalex   +1 more source

Feasibility of High‐Density Surface Electromyography for the Detection of Neuromuscular Disorders in Children

Muscle &Nerve, EarlyView.
ABSTRACT Introduction/Aims Diagnosing neuromuscular disorders in children is challenging. Concentric needle electromyography (CNEMG) is the standard for electrophysiological assessments but has limitations in pediatric populations. High‐density surface electromyography (HDsEMG) provides a noninvasive technique with superior spatial resolution, enabling
Eduardo Martinez‐Valdes, Ignacio Contreras‐Hernandez, Ragul Selvamoorthy, Francesco Negro, Andrew Lawley   +4 more
wiley   +1 more source

The effect of exercise training modalities on the morphological and mechanical properties of the achilles tendon: a systematic review and network meta-analysis. [PDF]

Front Sports Act Living
Fu B, Qian Y, Wang Y, Fang J, Gu Y, Zhang X.   +5 more
europepmc   +1 more source

Post Activation Potentiation Is Greater in Human Triceps Brachii Versus Triceps Surae Muscles

Muscle &Nerve, EarlyView.
ABSTRACT Introduction/Aims Voluntary muscle contractions result in a temporary increase in twitch force, a phenomenon termed post activation potentiation (PAP). In rodents and other species, PAP is observed predominantly or exclusively in fast twitch muscles. However, it has been suggested that in humans, PAP occurs more or less independently of muscle
William S. Zoughaib, Madison J. Fry, Ahaan Singhal, Richard L. Hoffman, Andrew R. Coggan   +4 more
wiley   +1 more source

Isometric muscle strength profile of lower limbs for children and adolescents between 7 and 15 years of age. [PDF]

PeerJ
Bustos-Moyano O, Guzmán-Muñoz E, Valdes-Badilla P, Frugone-Zaror D, Miño-Cornejo F, Araya-Quintanilla F, Mendez-Rebolledo G.   +6 more
europepmc   +1 more source

Relationship Between Firing Rate and Recruitment Threshold of Motoneurons in Voluntary Isometric Contractions

, 2010
Carlo J. De Luca, Emily C. Hostage
openalex   +2 more sources

Failure of anti-hypertensive drugs to control blood pressure rise with isometric exercise in hypertension [PDF]

, 1981
J. A. O’Hare, D Murnaghan
openalex   +1 more source