The intermittent nature of player physical output in professional football matches: An analysis of sequences of peak intensity and associated fatigue responses

2020 ◽  
pp. 1-10
Author(s):  
Jan Schimpchen ◽  
Sudarshan Gopaladesikan ◽  
Tim Meyer
Keyword(s):  
Professional Football ◽  
Peak Intensity ◽  
Physical Output

Resolution Attainable With the Present Day STEM

1973 ◽  
Vol 31 ◽  
pp. 230-231 ◽  
Author(s):  
J. S. Wall ◽  
J. P. Langmore ◽  
H. Isaacson ◽  
A. V. Crewe
Keyword(s):  
Spherical Aberration ◽  
Focal Length ◽  
Incident Beam ◽  
Scanning Transmission Electron Microscope ◽  
Aperture Size ◽  
Magnetic Lens ◽  
Peak Intensity ◽  
Transmission Electron ◽  
Scanning Transmission ◽  
Half Angle

The scanning transmission electron microscope (STEM) constructed by the authors employs a field emission gun and a 1.15 mm focal length magnetic lens to produce a probe on the specimen. The aperture size is chosen to allow one wavelength of spherical aberration at the edge of the objective aperture. Under these conditions the profile of the focused spot is expected to be similar to an Airy intensity distribution with the first zero at the same point but with a peak intensity 80 per cent of that which would be obtained If the lens had no aberration. This condition is attained when the half angle that the incident beam subtends at the specimen, 𝛂 = (4𝛌/Cs)¼

An Analysis of Dissociation of Molecules in a High Resolution Electron Microscope

1973 ◽  
Vol 31 ◽  
pp. 486-487
Author(s):  
Mihir Parikh
Keyword(s):  
Electron Microscope ◽  
High Resolution ◽  
Cross Sections ◽  
Resolving Power ◽  
Peak Intensity ◽  
Molecular Film ◽  
Resolution Electron ◽  
Dissociation Cross Section ◽  
High Resolution Electron Microscope ◽  
The Stability

It is well known that the resolution of bio-molecules in a high resolution electron microscope depends not just on the physical resolving power of the instrument, but also on the stability of these molecules under the electron beam. Experimentally, the damage to the bio-molecules is commo ly monitored by the decrease in the intensity of the diffraction pattern, or more quantitatively by the decrease in the peaks of an energy loss spectrum. In the latter case the exposure, EC, to decrease the peak intensity from IO to I’O can be related to the molecular dissociation cross-section, σD, by EC = ℓn(IO /I’O) /ℓD. Qu ntitative data on damage cross-sections are just being reported, However, the microscopist needs to know the explicit dependence of damage on: (1) the molecular properties, (2) the density and characteristics of the molecular film and that of the support film, if any, (3) the temperature of the molecular film and (4) certain characteristics of the electron microscope used

Insolvencies in Professional Football: A German Sonderweg?

2019 ◽  
Vol 14 (1) ◽  
pp. 54-68 ◽  
Author(s):  
Stefan Szymanski ◽  
Daniel Weimar
Keyword(s):  
Professional Football

Concussion in Professional Football: Injuries Involving 7 or More Days Out—Part 5

Neurosurgery ◽  
2004 ◽  
Vol 55 (5) ◽  
pp. 1100-1119 ◽  
Author(s):  
Elliot J. Pellman ◽  
David C. Viano ◽  
Ira R. Casson ◽  
Cynthia Arfken ◽  
John Powell
Keyword(s):  
Professional Football

Post-match recovery of eccentric knee flexor strength in male professional football players

2021 ◽  
Vol 47 ◽  
pp. 140-146
Author(s):  
César Augusto Bueno ◽  
João Breno de Araujo Ribeiro-Alvares ◽  
Gabriel dos Santos Oliveira ◽  
Rafael Grazioli ◽  
Filipe Veeck ◽  
...  
Keyword(s):  
Football Players ◽  
Professional Football ◽  
Knee Flexor ◽  
Flexor Strength

Lunate and Perilunate Dislocations in Professional Football Players

1994 ◽  
Vol 22 (6) ◽  
pp. 841-845 ◽  
Author(s):  
David J. Raab ◽  
David A. Fischer ◽  
Donald C. Quick
Keyword(s):  
Football Players ◽  
Professional Football
Sign in / Sign up

Export Citation Format

Share Document