The Israeli National Medical Library's new minicomputerized on-line integrated system (MAIMON).
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An in-house library system based on a dedicated mini-computer has been in operation in the Israel National Medical Library since the summer of 1979. The integrated system, called MAIMON, features on-line access to bibliographic and circulation records. It replaces manual procedures in cataloging, searching, lending, and reservations. The system provides previously unavailable statistics on items in heavy use and demand, items to be removed from the active collection, and who uses what in the library. It is designed to be user cordial and to save users' time. The system has been very favorably accepted by patrons, and frees professional librarians from time-consuming clerical routine tasks. The system is evaluated in terms of performance, convenience, and cost. (+info)
A programable calculator system for the estimation of nutritional intake of hospital patients.
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The estimation of nutritional intake of hospital patients is made laborious because of the multiplicity of proprietary feeding products. A programable calculator-based system to estimate intake from oral, enteral, and intravenous sources is described. The system is portable, accurate, and rapid and can be used easily by nondietary personnel. A retrospective study using the system found that actual nutritional intake was 20% or more below the prescribed intake for over half of 14 patients under the care of a Nutritional Support Team. It is suggested that frequent and rapid assessment of actual daily nutritional intakes using a system such as this can improve nutritional care and allow more efficient utilization of Nutritional Support Service personnel. (+info)
An automated statis perimeter/adaptometer using light emitting diodes.
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An automated static perimeter/adaptometer is described which measures thresholds with lights of 2 wavelengths. The instrument uses light-emitting diodes to produce the stimuli and is controlled by a small computer, making it very suitable for clinical testing of large numbers of patients. The use of 2 LEDs with different peak emission wavelengths (530 and 660 nm) permits an assessment of the relative state of rod and cone mechanisms in a particular region of the retina either during dark adaptation or when the eye is fully dark adapted. (+info)
Rapid digital filtering.
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Image filtering with the larger, and potentially most valuable, digital filters is very time-consuming, thus precluding use of these filters in routine clinical applications. A recently developed algorithm for spatial-domain filtering is described, and its speed is compared with those of conventional methods with and without an array processor. Using the new Chebyshev method, a 64 by 64 pixel image can be filtered on a standard 16-bit minicomputer with filters of size 3 by 3 to 23 by 23 in 1.4-9.2 sec. The conventional spatial-domain algorithm requires 3.8-71 sec. With an array processor, filtering is accomplished in 0.19-0.54 sec. Filtering in the frequency domain requires 34 sec without an array processor and 0.12 sec with one. Thus with this new Chebyshev algorithm, clinically practical digital filtering can be performed with large filters even without an array processor. (+info)
Digital filtering in nuclear medicine.
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Digital filtering is a powerful mathematical technique in computer analysis of nuclear medicine studies. The basic concepts of object-domain and frequency-domain filtering are presented in simple, largely nonmathematical terms. Computational methods are described using both the Fourier transform and convolution techniques. The frequency response is described and used to represent the behavior of several classes of filters. These concepts are illustrated with examples drawn from a variety of important applications in nuclear medicine. (+info)
Automation of internal library operations in academic health sciences libraries: a state of the art report.
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A survey of automated records management in the United States and Canada was developed to identify existing on-line library systems and technical expertise. Follow-up interviews were conducted with ten libraries. Tables compare the features and availability of four main frame and four minicomputer systems. Results showed: a trend toward vendor-supplied systems; little coordination of efforts among schools; current system developments generally on a universitywide basis; and the importance of having the cooperation of campus computer facilities to the success of automation efforts. (+info)
Practical use of a word processor in a histopathology laboratory.
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Some of the facilities available with a commercially purchased word processing program, linked to a DEC PDP 11/23 computer are described, together with an account of the practical histopathological use. The system is based on a share of the computer with a Clinical Chemistry Department. Development was time-consuming and required the constant availability of the Department of Physics. However, once working, considerable saving in secretarial time has resulted and a number of projects have been started which would not have been contemplated without the use of the word processor and its linked computer. (+info)
Use of functional maps in renal scintigraphy to detect segmental arterial lesions.
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Renography using a gamma camera, a minicomputer, [123I]orthoiodohippurate ([123I]OIH), and a canine model was employed to evaluate computer-generated maps of regional renal function. Renograms were obtained before and after ligations of the right renal arterial branch in four dogs, with subsequent angiographic and histologic confirmation of the lesions. Postoperative time-activity curves were normal. Washout and persistence index in three of four right kidneys showed regional abnormality. Functional renal mapping may provide a clinical technique for evaluating human renal vascular hypertension. (+info)