Biomedical subjects

I Pierce

Publications and source records attributed to I Pierce.

3 recordsLinked to original sources

PubMed2000

Wavelet operators for nonlinear optical pulse propagation.

A method that uses discrete wavelet transforms for the solution of evolution equations that describe optical pulse propagation in nonlinear media is presented. The theory of orthogonal wavelet transforms is outlined and applied to the representation of optical pulses. Wavelet transform representations of propagation operators are presented and applied to the nonlinear Schrödinger equation, yielding results that are indistinguishable from traditional Fourier-based simulations. The compression properties of wavelet representations of optical pulses permit significant improvement in execution speed compared with that of the split-step Fourier method.

Journal Article↗

PubMed1985

Hereditary sideroblastic anaemia and ataxia: an X linked recessive disorder.

We report two families in which a non-progressive spinocerebellar syndrome and a sideroblastic anaemia are segregating together in an X linked recessive fashion. Four males in two generations of one family and a fifth male from an unrelated family had both conditions. Both the sideroblastic anaemia and the spinocerebellar syndrome differ from those which have previously been reported to be inherited in an X linked recessive manner. The association of these two clinically distinct disorders in two unrelated families suggests that they are either two closely linked loci which have undergone simultaneous mutation or pleiotropic effects of an altered allele at a single locus. All the heterozygous women had normal neurological examinations and normal haematocrits and red cell indices. Some had ring sideroblasts on bone marrow examination, a dimorphic peripheral blood smear, and raised serum free erythrocyte protoporphyrin, suggesting that a proportion of heterozygotes can be detected by appropriate haematological studies.

Anemia, Sideroblastic↗

PubMed1983

Networking: a method of retaining nursing staff.

Nursing administrators are well aware of the negative impact of nursing turnover on the quality of nursing care and the productivity of a nursing department. They are equally aware of the high cost of continually recruiting and orienting new nursing staff. Yet finding a solution to the problem of turnover has proved very difficult. This article proposes the use of networking as a method of retaining nursing staff. A conceptual design is offered that focuses on communication and collaboration. This networking plan relies on aspects of the nursing process--assessment, planning, implementation, and evaluation--to reach its goal: retention of high-quality nursing staff.

Career Choice↗