Dissociation extraction

Triplet exciton dissociation and electron extraction in graphene-templated pentacene observed with ultrafast spectroscopy.

We compare the ultrafast dynamics of singlet fission and charge generation in pentacene films grown on glass and graphene. Pentacene grown on graphene is interesting because it forms large crystals with the long axis of the molecules "lying-down" (parallel to the surface). At low excitation fluence, spectra for pentacene on graphene contain triplet absorptions at 507 and 545 nm and no bleaching...

Evidence of Double Dissociation in Auditory Agnosia: Implications for Rehabilition

Atrial dissociation.

Atrial dissociation is characterized by two sets of independent P waves on the electrocardiogram and two atrial beats independent of each other. One atrium is under the control of the dominant pacemaker (sinus node) which also controls the ventricles, while the other atrium or part of the other atrium is under the control ofan ectopic pacemaker, resulting in unilateral ectopic atrial rhythm, be...

Scapulothoracic dissociation.

Dr Lavelle is from the Department of Orthopedics, SUNY Upstate Medical University, East Syracuse, and Dr Uhl is from the Division of Orthopedic Surgery, Albany Medical College, Albany, New York. Drs Lavelle and Uhl have no relevant fi nancial relationships to disclose. Correspondence should be addressed to: Richard Uhl, MD, Division of Orthopedic Surgery, Albany Medical College, 1367 Washington...

Scapulothoracic Dissociation

The scapula is a somewhat mobile structure which, although fixed to the thoracic cage both by muscular and skeletal attachments, can change position with regards to the underlying chest wall [1]. The Scapulothoracic position is maintained by both muscles (serratus, rhomboids etc) and the clavicle which itself attaches laterally to the scapula (acromioclavicular joint) and medially to the chest ...