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PubMed1984

Diffusion of innovation: computer technology in hospital pharmacy.

The diffusion of computer technology in hospital pharmacy departments was studied by surveying pharmacy directors in a randomly selected sample of 501 hospitals in the United States with at least 100 beds. Pharmacy directors were asked to indicate for which of 17 tasks a computer or memory typewriter was used in the pharmacy department. The time of first adopting computers in the department was compared with the predicted S adoption curve; adoption time was also correlated with characteristics of the hospital, pharmacy, and pharmacy director. Of the 417 respondents, 308 reported use of a memory typewriter or computer in the pharmacy. Fifty-one directors reported only memory-typewriter use, and 94 reported both computer and memory-typewriter use. Maintenance of patient census lists and patient billing were the most frequent uses of computers. The primary uses of memory typewriters were preparation of letters and labels. There was no significant difference in the actual and predicted S curves for time of adoption of computers. The number of months since first adopting computers was positively correlated with hospital bed size and the pharmacy director's number of years as a pharmacist, years in current position and with current employer, and number of subordinates; it was also positively correlated with number of pharmaceutical services and number of computer uses in the department. Computer technology is becoming more universally accepted in hospital pharmacy, and research on the diffusion of innovations suggests that acceptance will continue to increase.

Computers↗
PubMed2006

Neuromodulatory effect of bromazepam on motor learning: an electroencephalographic approach.

To investigate the effects of bromazepam on motor performance and electroencephalographic activity (qEEG) in healthy subjects, during the process of learning a typewriting task, with a focused attention demand. A randomized double-blind model was used to allocate subjects in one of the following conditions: placebo (n=13), bromazepam 3 mg (n=13) or bromazepam 6 mg (n=13). Forty minutes after treatment administration, subjects were submitted to the motor task. EEG activity was recorded simultaneously. The analyzed variables were: number of errors and execution time, which were extracted from each block of the typewriting task, and mean relative power values in the beta band (13-35 Hz), extracted from the qEEG. A significantly lower number of typing errors was observed in both bromazepam conditions (Br 3 mg and Br 6 mg) when compared to the placebo. There was no difference between the two bromazepam conditions. For the execution time variable, a better performance was observed in the Br 3 mg condition, but with no statistical significance. The highest degree of cortical activation during the task was observed in Br 3 mg and Br 6 mg when compared to placebo. The medication's anxiolytic effect intensifies the attentional focus over predictable events occurring in reduced perceptual fields. The qEEG's accentuated response in pre-motor and primary motor areas suggests a greater effort directed to the most relevant aspects of the task. In short, the doses employed (3 and 6 mg) seem to enhance the learning of motor tasks that involve focused attention, such as typewriting.

Adult↗
PubMed1989

[Script crossing in scanning electron microscopy].

A case of mixed script in which ball point-pen ink was contaminated with typewriting prompted a survey of the literature and a systematic SEM study of mixed script with various writing instruments or inks. Mixed scripts produced with the following instruments or inks were investigated: pencil, ink/India ink, ball-pint pen, felt-tip pen, copied script and typewriter. This investigation showed SEM to be the method of choice for visualizing overlying scripts produced by different writing instruments or inks.

Crime↗
PubMed1983

Chord keyboards.

Unlike the standard typewriter keyboard, keying on a chord keyboard is carried out by simultaneous patterned pressing of one or more keys. This results in fewer keys being needed on a chord keyboard when compared with a sequential keyboard, where keys are pressed one at a time. For example, five keys allow a total of 31 (2(5) - 1) different chord combinations to be generated. The feasibility of using a chord keyboard as a data entry input device was first seriously investigated in the mid-1950s by the Canadian Post Office. The trend towards research into chord keying reached a peak around 1960 when International Business Machines (IBM) studied two chord keyboards to rival the typewriter. It was not until the 1970s that chord keyboards became commercially available and within the last decade three chord keying devices have been marketed. The emphasis on the development of these recent keyboards has moved from task specific to more general purpose applications. This paper (based upon Martin (1980) the author's maiden name) reviews the chord keyboards which have been developed since the 1940s with special emphasis on the mail sorting application, and draws some conclusions concerning future developments.

Journal Article↗