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PubMed · 542043

A computer-aided interactive procedure to improve nurse-training programmes.

A R Shah
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Abstract

Nurses represent the largest single resource in terms of numbers of staff employed as well as the revenue cost within the National Health Service. As trainee nurses constitute about 30% of the nursing staff and in some cases provide more than 60% of the bedside care, the effective design of nurse training programmes must receive considerable analytic attention. A computer-aided interactive procedure is described which enables senior nursing administrators to evaluate and improve, from service point of view, a given nurse training programme.

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A R Shah. A computer-aided interactive procedure to improve nurse-training programmes.. https://doi.org/10.3109/14639237909017758

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Effects of chamber depth on the motion pattern of human spermatozoa in semen or in capacitating medium.

The computer-aided sperm analysis system (CASA) permits precise calculation of the trajectory characteristics of human spermatozoa. Comparison between different chamber depths (10, 20 and 100 microns) revealed variations in the results, which were more evident as the magnitude of the spermatozoon flagellar beat increased. In seminal spermatozoa, the reduced amplitude of movement, linked to the relatively short flagellum and high viscosity of seminal plasma, indicates that the 10 microns-deep chamber can be used for motion analysis without involving extensive modifications. On the other hand, analysis of quicker movement, such as in capacitated spermatozoa, revealed large variations; in particular the proportion of non-progressive hyperactivated spermatozoa was higher in the 20 microns than in the 10 microns chamber (17.9 +/- 14% and 6.9 +/- 4.5% respectively, P < 0.01). In fact the distribution of non-progressive and progressive hyperactivated spermatozoa is depth-dependent. It is therefore necessary to use a chamber of at least 20 microns in depth for sperm analysis in capacitated medium.

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