Biomedical subjects

M McLean

Publications and source records attributed to M McLean.

114 records · Page 7Linked to original sources

PubMedDate not supplied

The utilization of a multi-layer prosthesis to treat recurrent antral carcinoma: a case report and review of the literature.

This paper reviews the use of an intracavitary mold in the radiotherapeutic management of recurrent sub-orbital carcinoma of the maxillary sinus. An overview of the clinical features of antral carcinomas and the concept of brachytherapy in the management of these lesions is presented. Brachytherapy is usually reserved for relatively accessible lesions. Post-surgical and radiation-induced trismus can be a complicating factor, as in the case presented, where the inter-incisal distance was less than three millimeters. To circumvent the problem, a multi-layer antral plug was utilized as a carrier for the radioactive sources, and its construction is described.

Adult↗

PubMedDate not supplied

Six actin gene subfamilies map to five chromosomes of Petunia hybrida.

The Mitchell variety of Petunia hybrida possesses a superfamily of actin genes which contains between 100 and 200 members that can be divided into at least six highly divergent subfamilies. The segregation of restriction fragment length polymorphisms among 96 plants from two backcrosses between the Violet 23 and Red 51 Petunia varieties and the Violet 23 x Red 51 hybrid was examined using gene-specific probes from six Petunia actin gene subfamilies. These data were compared with the genotypes of each plant at 11 marker loci which are distributed among the seven chromosomes of Petunia and which determine flower, pollen, and isozyme phenotypes. From these analyses, members of these six actin gene subfamilies were mapped to five locations on five Petunia chromosomes: the PAc9, PAc1, PAc4, and PAc2 subfamilies are on chromosomes I, II, III, and VII respectively; the PAc3 and PAc7 subfamilies are tightly linked on chromosome IV. All members of the PAc4 subfamily cosegregated as a cluster of genes. These data are discussed regarding gene amplification in plants.

Actins↗

PubMedDate not supplied

The impact of computerization on nursing: an interview study of users and facilitators.

When health care settings are computerized, nurses' jobs are affected. Hospitals must understand this important phenomenon in order to develop the best possible implementation strategies that consider the impact nurses may experience. The goals of this study were the following: 1) to explore the personal and job-related effects of computerization on nurses; 2) to determine the factors that helped these nurses cope during the computerization process; and 3) to derive recommendations that could assist hospitals implementing computerization in future. Twenty nurses were identified by their peers as knowledgeable informants for a research interview: 10 staff nurse users and 10 nurse educators or administrators serving as facilitators of the change. The confidential interviews were analyzed using a grounded theory approach with constant comparative analysis of the emerging categories. The investigators developed a visual model showing six themes that have the greatest effect on the nurses: 1) time frame, 2) choice of software, 3) communication, 4) the change process, 5) training, and 6) leadership. These themes were considered within a broad hospital context, in which budget, nurse involvement, policy practice issues, and other concurrent projects also influenced nursing. In addition, personal characteristics of each nurse affected how each nurse experienced the change to computerization. Recommendations from the respondents addressed a wide range of factors that may be useful to other hospitals planning to implement computerization in nursing.

Attitude to Computers↗

PubMedDate not supplied

Impact of computerization on nursing: automated order entry, care planning, and implications for recruitment.

Very few empirical studies have been completed which verify the actual benefits of automation for nursing. This article provides an overview of the results and implications of five research studies undertaken at a Canadian Hospital to ascertain the impact of computerization on selected aspects of nursing. These studies found that nurses perceived few positive benefits for direct care givers when order entry, results reporting and care planning were automated. This article will be of particular interest to nurse administrators who are embarking on automation within their hospitals.

Attitude of Health Personnel↗

PubMedDate not supplied

Child maltreatment: international perspectives.

The purpose of this literature review was to explore definitions, incidence, and management of child maltreatment across cultures. Articles written in the English language published from 1962 to 1991 were reviewed to answer the following questions: (1) What role does cross-cultural variability play in defining child maltreatment? (2) What is the incidence of maltreatment in developed and developing countries across continents? (3) What measures have been instituted by countries to prevent and manage child maltreatment? Cross-cultural information was found to be limited. Child rearing attitudes had an impact on the identification, prevention, and management of maltreatment across nations.

Attitude to Health↗

PubMedDate not supplied

Development and application of a computerized workload measurement tool for nurse educators.

This paper describes the development and application of a computerized workload measurement tool for use in hospital nursing education departments. The tool was developed in response to a need to gather information to facilitate resource allocation within the nursing education department in times of severe fiscal constraint. Software was developed based on a commercially available spreadsheet to keep track of the time and nature of nursing educator activity as well as its location. Analysis of the results showed that most of the nurse educators' time was spent on educational activities. The workload measurement system provided useful information for both individual educators and for the department in assessing, planning and allocating resources for educators.

Education, Nursing, Continuing↗