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Biomedical subjects

J Crisp

Publications and source records attributed to J Crisp.

32 records · Page 2Linked to original sources
PubMed1995

Making sense of the stories that people with Alzheimer's tell: a journey with my mother.

Confabulation or pseudo-reminiscence of the sort produced by people with Alzheimer's is reconsidered by applying existing theories about the structure of narrative and work on reminiscence, and the construction of a life story to the stories told by the author's mother. This approach provides the basis for going beyond a negative estimate of confabulatory stories based on their apparent confusion of past and present, truth and fantasy, to a more positive estimate of them as complying with the norms of narrative, and as being functional for their teller as a means both of interaction and of reconstructing an identity. It also allows for identification of certain predominant themes, which may help one to grasp the general sense of such stories.

Alzheimer Disease↗
PubMed1991

Filtering by movement in visual search.

Search for a target defined by a conjunction of movement and form (e.g., an X moving up in a display of intermingled Os moving up and stationary Xs) is parallel. This result is also found if (a) the moving Os and target X move in unpredictable directions so that the moving stimuli do not form a clear perceptual group or (b) the nontarget Xs also move but in a known, different direction from the Os and target X. In contrast, search is slow and serial if the target may be unpredictably among either moving or stationary stimuli. These results suggest that a component of the visual system operates as a movement filter that can direct attention to stimuli with a common movement characteristic. The filtering cue can be moving (vs. stationary), or movement in 1 particular direction. The results do not support the view that attention can only be directed to groups defined by common fate.

Adult↗
PubMed1988

Visual search for a conjunction of movement and form is parallel.

Treisman has proposed when a human subject performs a visual search, the search is parallel for targets defined by a single feature, and serial for targets defined by a conjunction of features. Here we report that this is not true for targets defined by a conjunction of the features movement and form. Detection of a moving X among randomly distributed moving Os and static Xs is parallel. Search is uninfluenced by the stationary stimuli despite their spatial intermingling with the moving items. Thus, attention can be restricted to a spatially dispersed perceptual group, defined by common movement. This contradicts previous conclusions from visual search experiments that attention can only be assigned to contiguous regions of visual space. The search process first segregates the array into moving and stationary items, and then examines the moving group for the target form. Cells in the middle temporal region (cortical area MT) have the properties required to perform these operations.

Color Perception↗
PubMed1985

A method to label cigarette smoke with 99mTc.

A method is described to label with 99mTc the particulate matter in the smoke from commercially obtained cigarettes. A solution of technetium heptasulfide is applied to the paper wrapper of the tobacco rod and then dried. Smoke from a cigarette treated in this way contains measurable amounts of 99mTc in the particulate phase. In contrast, no measurable radioactivity is found in the non-particulate (gaseous) phase of smoke. This method yields a gamma-emitting cigarette smoke which will permit future observation of particulate intake, deposition and clearance in experimental animals and man.

Isotope Labeling↗
PubMed1976

Random bone marrow biopsy in the staging of carcinoma of the prostate.

Random bone marrow biopsies were examined in 28 patients with proven carcinoma of the prostate. In 6 cases (28-5%) bony metastases were demonstrated and in 2 of these X-ray skeletal surveys were negative. It is suggested that bone marrow biopsy should be done in the staging of carcinoma of the prostate when other investigations are negative, especially when an occult primary is suspected, when radical treatment is contemplated and in clinical trials.

Adult↗
PubMedDate not supplied

Observations of the changes in standing height at the time of puberty.

In an investigation of the growth patterns of 76 children attending an orthodontic clinic, measurements of standing height were used to study the adolescent growth spurt. Growth curves were fitted to the data by a graphical method, and also by fitting a Preece-Baines model. Both methods produced similar values for age at peak height velocity (PHV), but the graphical method produced higher values for peak velocity. Compared to the results obtained by fitting Preece-Baines curves to a sample from the Harpenden data, the South-east Essex children appear to be attaining significantly higher peak velocities. There was, however, no real difference in the values for age at PHV.

Body Height↗
PubMedDate not supplied

The Delphi method?

Explore the source record for details and available documents.

Data Collection↗
PubMedDate not supplied

Australian nurse educators identify gaps in expert practice.

In Australia, nurses face a double-barreled challenge to their role. With the rapid adoption of new health care technologies coupled with increasing economic constraints, they find themselves "doing more with less." In this context of continuous change, it is useful to determine what expert nurse clinicians deem the most essential skills, attitudes and knowledge required for practice in complex technological environments. Separate panels of 28 educators and 43 cardiac nurse clinicians participated in a national Delphi study rating the importance to the nursing role of 107 items drawn from the international literature on expert practice and technology. Indicating the importance of each item in both the "real" and "ideal" worlds of practice, educators identified 58 items where they felt actual practice was substantially far from the ideal. For 16 of these items relating to empowerment of patients, nursing research, and technology policy, the educators rated clinical behavior below the median of the real world scale, indicating substandard performance of a role or inadequate assimilation of a concept. The implications for the definition of expert practice and for curricula development are discussed.

Delphi Technique↗
PubMedDate not supplied

It's all in a name. When is a 'Delphi study' not a Delphi study?

As nursing researchers we need to fully understand the origins of the methods we are using in research investigations. Without an in-depth understanding, we may find ourselves violating fundamental underpinning assumptions or conventions through ignorance, and the resulting studies are unlikely to stand up to tests of congruence and rigour. This paper is a discussion of some complexities encountered while exploring the literature on the Delphi technique, a research method we had believed to be straightforward. The Delphi method had been used extensively since its development in the 1950s, and its use in nursing research appears to be increasing. Our explorations revealed that, rather than a simple means of obtaining the judgments of experts, modifications and adaptations over the years have dramatically changed 'the' Delphi. Anyone wishing to use the method needs a sound knowledge of complex theoretical issues associated with its implementation.

Consultants↗
PubMedDate not supplied

Australian clinicians and educators identify gaps in specialist cardiac nursing practice.

Change is endemic in both the health care and higher education sectors in Australia. Consequently professional roles and educational pathways must also evolve and adapt, often catalysed by those in leadership positions. Two national Delphi panels, one of cardiac nurse educators and the other of cardiac nurses, were convened to answer the question 'What knowledge, skills and attitudes are required for an expert nurse practising in the highly technological cardiac care environment?' Respondents indicated on a Likert scale the importance of 107 items to the nurse's role in both the 'real' and 'ideal' worlds of practice. Overall there was very strong agreement between the two panels with results indicating that Australian nurses perform close to their ideal in many areas of practice. For 31 of the items, both panels identified that the reality of practice is quite far from their ideal. Both panels agree that 10 of the behaviours are carried out or valued very little in practice. Reasons why nurses are not carrying out these elements of the role to their satisfaction are discussed and remediation strategies suggested. The findings can inform both curriculum development and clinical practice. In the dynamic health care arena, the nursing profession continues to respond to community and professional needs, seeking to establish sound research-based practice and maintain a high quality of clinical care and nursing management. The development of competencies by the Confederation of Critical Care Nurses (1996) is a good example of professional groups taking the initiative both in defining the practice role and providing tools that assist educational bodies to develop programs appropriate for a practice based discipline. Specialty nursing practice is 'under the microscope' in Australia as the profession seeks the best methods to weight nursing activities, measure nursing outcomes and recruit, retain and justify the use of specialist practitioners.

Attitude of Health Personnel↗
PubMedDate not supplied

Journal reading practices of RNs in NSW public hospitals.

Eight hundred and ninety-seven registered nurses working in NSW public hospitals were surveyed on their use of professional journals. Fifty per cent of participants were found to be regular readers, 30% occasional and 20% infrequent readers. Journals were most likely to be read when they were available at ward or departmental level. Ten per cent of participants reported that they frequently incorporated research findings into their practice and 44% that they never did so. The implications of these findings for the development of nursing as a profession are discussed.

Adult↗