Université de Fribourg

Observation of strongly heterogeneous dynamics at the depinning transition in a colloidal glass

Şenbil, Nesrin ; Gruber, Markus ; Zhang, Chi ; Fuchs, Matthias ; Scheffold, Frank

In: Physical Review Letters, 2019, vol. 122, no. 10, p. 108002

We study experimentally the origin of heterogeneous dynamics in strongly driven glass-forming systems. Thereto, we apply a well-defined force with a laser line trap on individual colloidal polystyrene probe particles seeded in an emulsion glass composed of droplets of the same size. Fluid and glass states can be probed. We monitor the trajectories of the probe and measure displacements and...

Consortium of Swiss Academic Libraries

Force production capacity and functional reflex activity in young and elderly men

Granacher, Urs ; Gruber, Markus ; Gollhofer, Albert

In: Aging Clinical and Experimental Research, 2010, vol. 22, no. 5-6, p. 374-382

Université de Fribourg

Short-term pressure induced suppression of the short latency response - a new methodology for investigating stretch reflexes

Leukel, Christian ; Lundbye-Jensen, Jesper ; Gruber, Markus ; Zuur, Abraham T. ; Gollhofer, Albert ; Taube, Wolfgang

In: Journal of Applied Physiology, 2009///doi:10.1152/japplphysiol.00301.2009

During experiments involving ischemic nerve block we noticed that the short latency response (SLR) of evoked stretches in m. soleus decreased immediately following inflation of a pneumatic cuff surrounding the lower leg. The present study aimed to investigate this short-term effect of pressure application in more detail. 58 healthy subjects were divided into 7 protocols. Unilateral stretches were...