[National University Hospital Medical Program Package--exchange of medical computer programs (author's transl)].
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The Environmental Protection Agency (EPA) has proposed national radionuclide air emission standards for a number of source categories. One of these standards applies to Nuclear Regulatory Commission Licensees and non-Department of Energy facilities having the potential to release radionuclides to the atmosphere. Approximately 6000 facilities are subject to the standard, which limits the effective whole-body dose commitment to the maximally exposed individual from radionuclide releases to the atmosphere. A computer program to assist the regulated community in determining compliance has been developed by the EPA's Office of Radiation Programs. The computer program COMPLY calculates the dose to an individual residing outside the facility. The program considers dose from inhalation, ingestion of contaminated food, air immersion, and ground deposition. It is based on models developed by the National Council on Radiation Protection and Measurements (NCRP). Compliance procedures provided in COMPLY are designed to reduce the burden on the regulated community. The approach begins with simple-to-use methods that are very conservative in determining compliance. The methods become progressively less conservative but more complicated at succeeding levels. Each higher level requires the input of site-specific information, but allows a more realistic estimate of dose. This paper describes the COMPLY program, and provides estimates of the work required and the degree of conservatism in the dose computed at each level.
The program MAPOS is a logically oriented computer program for computer-aided organic synthesis design suitable both for forward and retrosynthetic synthesis planning. It is based on the synthon model of organic chemistry, introduced by the authors. The fundamentals of the model as well as the basic algorithms are described. Examples of the use of the program are given.
This paper presents a useful program for the power spectra analysis of biomedical signals on a microcomputer. The frequency spectra to show the allocation of frequency were calculated from the acquired biomedical signal via a window algorithm and the real signal special handling. The frequency spectra became normalized power spectra through algorithm and could be displayed on a monitor or printer in the mode of histogram. We have got good results using this program to compute the power spectra of phrenic nerve discharges from the rabbit.
A computer program was evaluated as a tool for increasing the diagnostic acumen of medical housestaff and students in identifying acid-base disorders. The participants were randomized into two groups; group A (N = 20) was encouraged to use the software, and group B (N = 19) was denied access. Pre- and post-tests were administered to delineate the groups' ability to identify correctly an acid-base disorder from laboratory data (electrolytes and arterial blood gas). During 6 weeks, group A used the computer for a mean of 2.83 h (range 1 to 6). The mean +/- SE number of correct answers out of 20 questions, prior to use of the computer program, were 5.7 +/- 0.8 (95% confidence interval 3.9 to 7.5) for group A and 5.2 +/- 0.6 (95% confidence interval 3.9 to 6.5) for group B. These results were not statistically different. Correct responses increased significantly in group A to 10.3 +/- 0.9 (P < 0.0001, 95% confidence interval 8.4 to 12.2) but did not increase significantly in group B. The data suggest that this software program was effective in increasing the diagnostic capabilities of medical housestaff and students for identifying acid-base disorders.
A computer program was developed to maintain animal records for a nonhuman primate colony used in research. The program was designed for use with an existing laboratory notebook system. The computer program identifies each notebook entry containing information about each animal and keeps other information, including animal name, sex, species, projects to which the animal is assigned, location of the animal, dates and body weights. The program is interactive and easy to use. Information stored in the system is readily accessible to all investigators using the animals. In 17 months of use, 1382 master file entries were developed for 113 monkeys.
A computer program has been developed to assist the physician in managing patients with hypercalcemia. The program requests appropriate information, such as the patient's serum calcium concentration, age and x-ray results. Based on the abnormalities detected, the program asks additional questions needed to suggest the most helpful course of action for evaluating or treating the patient's hypercalcemia. As soon as the data have been entered, the program generates an evaluation note that includes diagnostic possibilities, suggestions for additional laboratory studies, therapeutic recommendations and references to the medical literature. The program can be used from any general purpose teletype-compatible terminal (including cathode ray tube displays) connected to the Bell Telephone System. The time required to enter the data and obtain the evaluation note is approximately 4 minutes with a teletypewriter, and less if a faster terminal is used. The cost for computer time is comparable to that of a laboratory test. Comparison of diagnoses produced by the program with those obtained from pathologic examination of from consulting endocrinolgists shows that the program is sufficiently accurate for clinical use. Finnally, the explanation of the pathophysiology contained in the evaluation note may be useful to the student.
A reliable numerical algorithm is described, together with a computer program written in FORTRAN IV and FORTRAN 77, for estimating a three-parameter variance function by approximate conditional likelihood. The function is sufficiently flexible to provide for a several thousand-fold relative change in variance and appears to be a good model for the severely heteroscedastic results obtained from immunoassays. The computer program is primarily intended for summarizing imprecision characteristics of immunoassays in the form of imprecision profiles, but the estimated variance functions have additional application whenever further parametric analysis of immunoassay results is undertaken (e.g., as a weighting function when immunoassay results are used in a least-squares regression analysis). The flexibility of the function implies useful application in any area where heteroscedasticity is particularly severe.
A computer program for implicit regression of the Hill equation. The fundamentals for the regression of implicit functions following the Gauss method are dealt with. Basing on these fundamentals a program for the regression of the Hill equation is described. The binding constant, the Hill coefficient and end extinction can be estimated. The mean errors of parameters were calculated in the linear model. The program was written in ALGOL 60 for the computer Robotron 300. The program is available on request.
A computer program for calculating required amounts of reagents for making up chemical solutions is presented. The program also maintains a custom list of available reagents. Use of the interactive mode guides the novice in entering the required information. The program is written in the BASIC programming language for IBM compatible microcomputers. It is available without cost from the author.
The computer program CASPER and its algorithms are described. The program is aimed at facilitating the determination of structures of oligosaccharides and regular polysaccharides, requiring as input either the one-dimensional 1H or 13C NMR spectrum or the 2D C,H-correlation NMR spectrum together with information on components and linkages. The databases, the method of simulating spectra, options of the program, and techniques for faster calculations are described as well as an example of a structural determination.
We present a computer program that is based on Karber's approximation of endpoint titers, written in GW-BASIC and provides an easy means for analyzing the results of dilution endpoint assays. The program provides estimates of standard error that are not possible from other statistical procedures for this type of data.
The computer program PEDINFUS permits the fast and simple definition of the individual nutrient amounts and infusion volumes in accordance with age, weight and possible metabolic complications for children up to 18 years. All components needed for total parenteral nutrition are taken into account. The conditions necessary for the optimal satisfaction of the individual needs of each patient by means of combined solutions have thus been created.
Easy Cloner is a computer program that manipulates DNA sequences as in cloning experiments and produces maps of the resulting plasmids. The program runs in the graphics mode of an IBM PC or compatible computer and is operated by using a mouse to point to the required actions. The program is available in the public domain.
A computer program for localizing visual field defects is presented. It is based on a decision tree which has been converted into a program written in Turbo-Pascal and can be run on any IBM-compatible computer. A question-and-answer routine guides the examiner to the localization of the defect.
An accurate, rapid calculation of Cardiac Output is of great importance during the treatment of critically ill patients. This paper describes a complete, self-contained mini-computer system, based on a Data General NOVA 1220 which can accurately sample data and compute the results in about 30 sec. The system uses the thermodilution method with a Swan-Ganz catheter to collect data and a weighted least-squares technique to compute the results.
A variety of small canned computer programs for survey research and demographic analysis appropriate for use in developing countries are reviewed in this article. The programs discussed are SPSS (Statistical Package for the Social Sciences); CENTS, CO-CENTS, CENTS-AID, CENTS-AIE II; MINI-TAB EDIT, FREQUENCIES, TABLES, REGRESSION, CLIENT RECORD, DATES, MULT, LIFE, and PREGNANCY HISTORY; FIVFIV and SINSIN; DCL (Demographic Computer Library); MINI-TAB Population Projection, Functional Population Projection, and Family Planning Target Projection. A description and evaluation for each program of uses, instruction manuals, computer requirements, and procedures for obtaining manuals and programs are provided. Such information is intended to facilitate and encourage the use of the computer by data processors in developing countries.
We have developed a computer program for Wiener filtering of evoked potential data. The basic algorithm involves computation of the difference berween the power spectrum of the sweep sum and the sum of power spectra of individual sweeps. Power spectra are computed by means of the discrete Fourier transform. The program is now being run on a LSI-11 computer in a neurophysiology research laboratory to analyze somatic evoked potential data from monkeys.