Results 61 to 70 of about 503,610 (344)

Discrepancies of non-$\Q$-Gorenstein varieties

open access: yes, 2011
We give an example of a non $\Q$-Gorenstein variety which is canonical but not klt, and whose canonical divisor has an irrational valuation. We also give an example of an irrational jumping number and we prove that there are no accumulation points for ...
Urbinati, Stefano
core   +1 more source

Scavenging by Jumping Spiders (Araneae: Salticidae) [PDF]

open access: yes, 2017
Jumping spiders are usually considered obligate predators where ingestion is preceded by visual or tactile stimuli which elicit hunting behavior.
Wolff, Robert J
core   +3 more sources

Prospects of Electric Field Control in Perpendicular Magnetic Tunnel Junctions and Emerging 2D Spintronics for Ultralow Energy Memory and Logic Devices

open access: yesAdvanced Functional Materials, EarlyView.
Electric control of magnetic tunnel junctions offers a path to drastically reduce the energy requirements of the device. Electric field control of magnetization can be realized in a multitude of ways. These mechanisms can be integrated into existing spintronic devices to further reduce the operational energy.
Will Echtenkamp   +7 more
wiley   +1 more source

EFFECT OF POST ACTIVATION POTENTIAL AND PASSIVE STRETCHING MODEL WARM-UP ON JUMPING PERFORMANCE [PDF]

open access: yesSportif Bakış Spor ve Eğitim Bilimleri Dergisi, 2017
The purpose of this study was to investigate the effect of different warm-up protocols (post activation potential model warm-up (PAP) and static stretching model warm-up) on jumping performance in male athletes.
Halit Harmancı   +5 more
doaj  

Sports Physiology in Adolescent Track-and-Field Athletes: A Narrative Review

open access: yesOpen Access Journal of Sports Medicine, 2023
Pantelis T Nikolaidis,1 Valentine D Son’kin2 1School of Health and Caring Sciences, University of West Attica, Athens, Greece; 2Russian State University of Physical Education, Sport, Youth and Tourism (SCOLIPE), Moscow, RussiaCorrespondence: Pantelis T ...
Nikolaidis PT, Son’kin VD
doaj  

THE DEVELOPMENT OF FORCE IN SPEED REGIME IN THE TRAINING OF FOOTBALL PLAYERS THROUGH THE PLIOMETRIC METHOD [PDF]

open access: yesAnnals of the “Ştefan cel Mare” University: Physical Education and Sport Section - The Science and Art of Movement, 2020
The pliometric become known very quickly by coaches and players according as the exercises had straight target the combination of force and speeds movement to produce power. The pliometric training become essential for jumping, carrying and blowing up
Grosu Bogdan-Marius
doaj  

Double Helical Plasmonic Antennas

open access: yesAdvanced Functional Materials, EarlyView.
Plasmonic double helical antennas funnel circularly polarized light to the nanoscale, offering strong chiroptical interaction and directional light emission. Extending a single helix design tool, this study combines numerical modeling with experimental validation, revealing large, broadband dissymmetry factors in the visible range.
Aleksei Tsarapkin   +7 more
wiley   +1 more source

Behaviors of Shelter Dogs During Harnessing and Leash Walks: Prevalence, Demographics, and Length of Stay

open access: yesAnimals
Length of stay is an important metric for animal shelters, and studies have identified physical characteristics of dogs, and some behaviors, that predict length of stay.
Betty McGuire   +3 more
doaj   +1 more source

Do Stretch-Shortening Cycles Really Occur in the Medial Gastrocnemius? A Detailed Bilateral Analysis of the Muscle-Tendon Interaction During Jumping

open access: yesFrontiers in Physiology, 2019
The effect of stretch-shortening cycles (SSCs) is often studied in laboratory settings, yet it remains unclear whether highly active muscle SSCs actually occur during in vivo movement.
Jeroen Aeles   +2 more
doaj   +1 more source

Methodology for Determining the Speed‑Power Capabilities of Basketball Players

open access: yesPhysical Education Theory and Methodology, 2022
The study objective is to develop a methodology for determining the jump height and jumping endurance in basketball players of various gaming functions using modern nanotechnology and microprocessor systems, in particular smartphones, personal computers,
Viktor Koryahin   +3 more
doaj   +1 more source

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