Biomedical subjects
Publications and source records attributed to P Finkel.
Recently we showed that the quasistatic response of nonlinear mesoscopic elastic solids to stress can be explained by invoking the formation of dislocation-based incipient kink bands. In this Letter, using resonant ultrasound spectroscopy, we confirm that the dynamical behavior of these nonlinear elastic systems is due to the interaction of dislocations with the ultrasound waves, thus resolving a long-standing mystery.
The molecular glass former trimethylheptane was studied by calorimetric, dielectric, ultrasonic, neutron scattering, Brillouin scattering, and depolarized light-scattering techniques. The molecular structure appears to be nearly spherical optically as indicated by the low depolarization ratio and dielectric susceptibility values. A preliminary mode-coupling theory (MCT) analysis of the light-scattering and neutron-scattering data indicates that T(C) greater, similar150 K, at least 25 K above T(G). The susceptibility minima were analyzed with the MCT interpolation equation, and disagreement between the light and neutron results was observed despite the apparent isotropy of the molecules.
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The concept of "rehabilitation" contains physical, psychosocial, and vocational elements. An exploratory study was developed by ESRD Network 18 regarding patient rehabilitation experiences in Southern California. A questionnaire was developed, and data collected from 248 randomly selected work-eligible ESRD patients in the network. Results showed relatively few significant differences between employed and unemployed ESRD patients in terms of demographics, and on many aspects of physical function, psychosocial adaptation, and vocational rehabilitation potential. However, unemployed patients reported lower energy levels, less stamina for working, greater benefits for not working, and problems with vocational rehabilitation programs. Unemployed patients also had more negative attitudes about achieving life goals and former job experiences. To help patients overcome barriers to rehabilitation, facility staff can focus on management of ESRD complications, assisting patients with support groups, connecting patients to rehabilitation resources early, and encouraging employed patients to continue working as long as possible.
Compared Halstead-Reitan Battery scores of hospitalized male schizophrenics with scores of normals and brain-damaged Ss to determine performance patterns that differentiate the groups. Schizophrenics performed less well than normals on the Categories, TPT-Memory, and TPT-Location subtests and better than brain-damaged Ss on all subtests except Categories. In general, the effects of medication produced nonsignificant results.
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