BackgroundTennis racket string tension may influence ball speed, directional control, and perceived comfort, yet evidence from real hitting tasks remains limited.ObjectiveThis study examined the effects of five string tensions on forehand and backhand performance and tested whether subjective comfort aligns with objectively optimal tension.MethodsTwenty-seven trained tennis players completed a re…
This study aims to explore the impact of transformational basketball coaching on athletes' technical-tactical performance and its efficiency ratio. A quantitative research design integrating questionnaire surveys and controlled experimental comparisons was adopted. A total of 306 basketball athletes and their coaches were recruited as the initial sample, with 286 valid samples ultimately retained…
Waking an athlete at 2 a.m. for anti-doping testing isn't just inconvenient. It's ignoring the science of sleep and performance. Lessons learned from the Tour de France.
worker-threads vs cluster: When to Use Which, With Reasoning Node.js is single-threaded. That's the first thing everyone learns. But at some point you realize okay, single-threaded is fine for most things. But what happens when your app needs to actually use more than one CPU core? Or what happens when one heavy task starts blocking everything else? That's where worker-threads and cluster both sh…
From ThreadPoolExecutor to httpx AsyncClient: True Async Refactoring Published on : 2026-06-06 Reading time : 6 min Tags : #python #async #performance #optimization The Problem: Fake Async The supabase-async library claimed to be async but actually wrapped synchronous calls with ThreadPoolExecutor: # ❌ Fake async (old code) class SupabaseAsync : def __init__ ( self ): self . _executor = ThreadPoo…
The essays collected in "Performing Space" are intent on moving forward the discussion about the relevance and significance of the interrelation between performance and space. Besides, in virtue of the fact that the contributors to the volume have different disciplinary or artistic backgrounds, this collection is aimed to initiate an interdisciplinary examination of performance and space, and to …
The server is on a Gbit link. ethtool confirms 1000 Mbps on the interface. And yet every SFTP transfer caps out somewhere around 800 KB/s. Not 80 MB/s — 800 kilobytes per second. Less than 1% of the theoretical capacity. The problem isn't bandwidth. It's a stack of bad defaults: a congestion control algorithm designed for year-2000 networks, microscopically small NIC ring buffers, and application…
