Public relations: prescription for an ailing public image.
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Nursing Homes↗
Biomedical subjects
J D Pincus
Publications and source records attributed to J D Pincus.
Communication: key contributor to effectiveness--the research.
This field study of 327 professional nurses at an east coast teaching hospital investigated the effects of nurses' satisfaction with different facets of organizational communication on their job satisfaction and job performance. The author found that certain aspects of communication (e.g., communication with supervisor, communication climate, personal feedback, and communication with top-level executives) are influential contributors to nurses' job satisfaction and, to a lesser extent, to nurses' job performance. The author suggests a number of ways nurse executives can increase the communication effectiveness of their nursing staffs.
Adult↗
An invariant for certain operator algebras.
It is shown that the so-called principal function invariant, which is associated in a unitarily invariant way to operators with trace class self commutator TT(*) - T(*)T, is invariant under trace class perturbations of T and is an extension of the index of T-z to the whole plane. The connection of the principal function, under additional hypothesis, with the determination of the maximal ideal space of the C(*) algebra generated by T is discussed, and it is shown that the principal function, even when it takes noninteger values, plays a role in establishing the existence of invariant subspaces for T and in determining the point spectrum of T.
Journal Article↗
The spectrum of seminormal operators.
With every pair of bounded self-adjoint operators {U,V} on Hilbert space such that VU - UV = (1/pii)C, where C is trace class, there is associated a certain function of two complex variables called the determining function of the pair. It was previously shown how the determining function can be obtained as the solution of a certain Riemann-Hilbert problem canonically associated with the pair, and how the complete spectral multiplicity theory for both U and V can be obtained from the determining function. We now show, under the condition that C is semidefinite, that the determining function method leads to a simple characterization of the spectrum of the seminormal operator T = U + iV.
Journal Article↗