Search PubMed⌕ Search

Biomedical subjects

S Lees

Publications and source records attributed to S Lees.

54 records · Page 3Linked to original sources

Developing effective institutional managers in the 1980s--Part 1: a current analysis.

Two dominant themes are developed in this two part paper. One is that the organizational behaviour of nurse managers has its origins in the social defence system learned during early nursing; the other is that many of the assumptions which underpin current thinking on management training can do little either to help unlearn these early behaviours or to enable managers to be more innovative in their roles. In part one management training is examined in some detail from the three perspectives of the institution, the management trainers and the nurse managers, and in particular the widely differing assumptions and expectations which each have about the management training process. The social defence system of nursing is then analysed and tentative evidence is offered to illustrate how nurse managers transfer this system to managerial positions, with dysfunctional consequences. Although primarily concerned with nurse management training, there are implications for managers and management trainers in a much wider range of institutions and professions.

Administrative Personnel↗

Developing effective institutional managers in the 1980s--part 2: some new directions.

In the earlier paper (published in the March 1980 issue of the Journal of Advanced Nursing) two dominant themes were developed. One was that the organizational behaviour of nurse managers could be traced to the social defence system learned during early nursing, the other was that many of the assumptions which underpin much of the current thinking on nurse management training can do little either to help them unlearn these early behaviours or to prepare them to take more innovative action in their respective roles. Part 2 analyses some implications of this. The initial discussion examines the purpose of management training and what it is intended to achieve, which embraces the issues of the transfer of course learning back to the workplace and the greater involvement of line managers in the development of their staff. By redefining nursing in terms of open-system boundary management, some new directions are suggested which management trainers may find useful in clarifying and redefining their own task, as well as enabling nurse managers to be more innovative and effective within the constraints of their organizational situations. The implications go beyond just nursing and nurse management training. They are concerned with the wider range of institutions whose task is the throughput of people, and which tend to be managed by groups of professionals.

Administrative Personnel↗

Modification of etching patterns in bovine dental enamel.

It is presumed that the etching pattern is controlled by the residual organic content of dental enamel. Pretreatment with 1.ON NaOH sould remove the organic material and modify the etching pattern. SEM studies and other tests for physical and chemical properties show that the predicted modification of the etching pattern, when the tooth surface is pretreated with NaOH solution, occurs apparently without other changes or properties.

Acid Etching, Dental↗

Radioimmunoassay kits for thyroid hormones.

Characteristics of the T4 and T3 radioimmunoassay kits that are commercially available in the UK are described. Useful comparative data and criticism are given about many of these kits. Some unacceptable variation in accuracy is demonstrated.

Blood Proteins↗

Serum triiodothyronine determination in clinical use.

Two radioimmunassays for the determination of serum triiodothyronine (T3) were developed. The assay of T3 in unextracted serum had several advantages over the assay on extracted serum and was chosen for the routine determination of T3 in serum from 117 patients requiring assessment of their thyroid status. In 53 subjects considered retrospectively not to have thyroid dysfunction nor to have been on steroid contraceptives or therapy, the pooled mean serum T3 concentration was 1-92 (actual range 0-88-2-62) nmol/l. A significant inverse relationship was observed between the serum T3 level and the age of the subject. Serum total T3 levels discriminate clearly between hypo-,eu- and hyperthyroid patients and provide a rather more sensitive index of hyperthyroid function than total serum T4. In the face of normal serum T4 the T3 level was depressed in five patients with marked hypoproteinaemia and elevated in two patients taking heroin.

Age Factors↗

Dental enamel: detection of surface changes by ultrasound.

Evidence indicates that the tooth surface differs in structure from the enamel immediately beneath it, and particularly that the enamel rod type structure is minimal in the true natural surface. Furthermore, the rod ends appear to disappear with age after the eruption of the tooth. The thickness of the surface layer may be as much as 25 micrometers. Studies of caries incidence show a peak in the attack curve 2 to 4 years after eruption and a decline thereafter for all teeth. This information indicates that the mechanical structure of the tooth surface should be carefully studied. A highly useful means appears to be ultrasound since the specific acoustic impedance of highly mineralized tissue like enamel is strongly dependent on fraction volume mineralization and since non-destructive test techniques can be based on ultrasonics. An experimental demonstration of ultrasonic detection in vitro of tooth surface demineralization is given.

Collagen↗

Looking into teeth with ultrasound.

Ultrasound is readily conducted across a boundary when the specific acoustic impedances of the two media are about equal. The specific acoustic impedance of dental enamel is about that of aluminum. A longitudinal sonic pulse, less than 250 nanoseconds in duration, conducted to the tooth through an aluminum rod, has positively detected the enamel-dentin junction as well as the dentin-pulp interface.

Aluminum↗

Benefits of nurse teachers returning to clinical practice.

This article outlines an action research study developed to facilitate nurse teachers returning to clinical practice. The article explores how the teachers established partnerships with clinicians through which they were able to share the experience of returning to an area of nursing that they had previously only visited. It discusses four categories: expectations of self and others; entering someone else's world; more awareness of student needs; and teaching theory and practising nursing. These categories emerged following the analysis of journals, focus group interviews and individual interviews and led to a number of recommendations concerning the implications for other teachers wishing to return to clinical practice.

Attitude of Health Personnel↗