PubMed Health⌕ Search

Biomedical subjects

M Howell

Publications and source records attributed to M Howell.

34 records · Page 2Linked to original sources
PubMed1986

The non-ionic dimers: a new class of contrast agents.

Non-ionic dimers are a new class of iodinated radiological contrast agents. Some physico-chemical and pharmacological properties of three representative compounds are presented. Non-ionic dimers are iso-osmolar with plasma at all iodine concentrations unless diluted with saline and in terms of chemotoxicity they appear to be closely comparable with the established non-ionic monomeric agents. It is shown that the data lend support to the theory that it is the degree of steric hindrance of the hydrophobic iodine atoms by side-chains which determines this chemotoxicity. Areas in which agents of this type may find applications are indicated.

Chemical Phenomena↗
PubMedDate not supplied

Autonomic and cardiovascular responses of preschool children to television programs.

This exploratory study examined the heart rates (HR) and skin temperatures (ST) of 18 preschool children while they viewed two clips of everyday children's television (TV) programming. The measurements were made in a day care setting, in a naturalistic environment designed to mimic the real world of children's TV viewing. The purpose of the study was to determine whether cardiovascular and autonomic arousal to TV programming might occur in some children. Since a large body of psychosocial literature addresses the affects of TV violence on children, HR and ST were examined during exposure to scenes from Mr. Roger's Neighborhood and G.I. Joe cartoons. The Mr. Roger's clip was slow, rhythmic, prosocial, and nonviolent, while the G.I. Joe clip was fast-paced, staccato, colorful, and full of verbal and action violence. The study found a significant effect of exposure to the cartoon violence on HR, with HR increasing. ST decreased, but not significantly, and there was a significant effect of time on the ST, due possibly to habituation. This finding has relevance to nursing assessment, intervention, and education of parents and children, since TV viewing is a pervasive cultural phenomenon. The possibility of excessive or inappropriate autonomic and cardiovascular responsiveness in some children to TV must be considered.

Body Temperature↗
PubMedDate not supplied

Confidentiality during staff reports at the bedside.

This paper describes a small-scale qualitative study in an acute elderly care setting using the bedside approach to nursing hand-over reporting. The aim of the study was to examine the attitudes of staff and patients while conducting bedside reporting instead of a more traditional approach to report-giving. The main focus was to examine attitudes to confidentiality, the outcome of which concludes that the nursing staff perceived less maintenance of confidentiality than patients believed they had experienced.

Confidentiality↗
PubMedDate not supplied

Staff knowledge of inhaler technique improved by survey.

This paper looks at a small project that examines nurses' knowledge of inhaler technique and related issues using a range of inhalers. It identified a lack of knowledge in a specific group of hospital nurses in the range of inhalers available, user techniques and the care and management of such devices. This resulted in individual tuition for nurses on inhaler technique and relevant information being made available.

Clinical Competence↗