Results 51 to 60 of about 1,566,640 (302)

Biomechanical comparison of the track start and the modified one-handed track start in competitive swimming: an intervention study [PDF]

, 2008
This study compared the conventional track and a new one-handed track start in elite age group swimmers to determine if the new technique had biomechanical implications on dive performance.
Galbraith, H, Graham-Smith, P, Hencken, C, Scurr, J, Wood, L   +4 more
core   +1 more source

The Reliability and Validity of Isometric Midthigh Pull Measures Obtained from a Portable Isometric Dynamometer

International Journal of Strength and Conditioning
The purpose of this investigation was to establish the reliability and concurrent validity of measures of peak and early force production obtained from a portable isometric dynamometer (PID).
Danny Lum, Lachlan P. James, Luke Stutter, Scott Talpey   +3 more
doaj   +1 more source

Cuts force telescope closures at Kitt Peak [PDF]

Nature, 1999
WASHINGTON The Kitt Peak National Observatory in Arizona plans to close two of its five remaining night-time telescopes, but critics say the move won't solve the observatory's fundamental problems.
openaire   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Protein mechanical unfolding: importance of non-native interactions

, 2009
Mechanical unfolding of the fourth domain of Distyostelium discoideum filamin (DDFLN4) was studied by all-atom molecular dynamics simulations, using the GROMOS96 force field 43a1 and the simple point charge explicit water solvent.
Berendsen H. J. C., Chin-Kun Hu, Hoang Zung, Mai Suan Li, Maksim Kouza   +4 more
core   +1 more source

Exploratory investigation of impact loads during the forward handspring vault [PDF]

, 2015
The purpose of this study was to examine kinematic and kinetic differences in low and high intensity hand support impact loads during a forward handspring vault.
Penitente, Gabriella, Sands, William
core   +2 more sources

NanoScale Quantitative Mechanical Property Mapping Using Peak Force Tapping Atomic Force Microscopy [PDF]

Microscopy and Microanalysis, 2010
Extended abstract of a paper presented at Microscopy and Microanalysis 2010 in Portland, Oregon, USA, August 1 – August 5, 2010.
SC Minne, Y Hu, S Hu, B Pittenger, C Su
openaire   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Quantifying the onset of the concentric phase of the force–time record during jumping [PDF]

, 2009
Thirteen college students performed a drop jump from height equal to their peak vertical jump, single leg jumps from the left and right legs, and a counter movement jump.
Ebben, William, Garceau, Luke, Jensen, R.L., Leissring, S.K., Petushek, Erich   +4 more
core   +2 more sources

Influence of Hydrodynamic Interactions on Mechanical Unfolding of Proteins

, 2007
We incorporate hydrodynamic interactions in a structure-based model of ubiquitin and demonstrate that the hydrodynamic coupling may reduce the peak force when stretching the protein at constant speed, especially at larger speeds.
Abe H, Anselle G C, Cichocki B, Cieplak M, Cieplak M, Dhont J K G, Dickinson E, Durlofsky L, Ermak D L, Felderhof B U, Hoang T X, Irbäck A, Kim S, Ladd A J C, Larson R G, Lemak A, Lorentz H A, Lu H, Makarov D, Marek Cieplak, Mazo R M, Mazur P, Nägele G, P Szymczak, Phung T N, Rotne J, Rzehak R, Schlierf M, Sułkowska J I, Szymczak P, Takada S, Tanaka H, Tanaka H, Tsai J, Veitshans T, Wojtaszczyk P, Yamakawa H   +36 more
core   +1 more source