IRE Transactions on Bio-Medical Electronics

Issue 1 • Jan. 1961

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Displaying Results 1 - 23 of 23
  • [Front cover]

    Publication Year: 1961, Page(s): c1
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  • IRE Professional Group on Bio-Medical Electronics

    Publication Year: 1961, Page(s): c2
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  • [Table of contents]

    Publication Year: 1961, Page(s): 1
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  • An active low-pass filter for biological potential amplifiers

    Publication Year: 1961, Page(s):2 - 4
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (629 KB)

    An active RC filter with an m-derived low-pass response is described. With a cutoff of 45 cps and a sharp attenuation peak at 60 cps, it is particularly suitable for eliminating power-frequency interference from EKG, EEG, or other biological potential amplifiers. It is small in size and requires only one 12AX7 or its transistor equivalent for the active elements. Typical design data and performanc... View full abstract»

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  • A Three-Channel Electromyograph with Synchronized Slow-Motion Photography

    Publication Year: 1961, Page(s):4 - 6
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2139 KB)

    Muscle transplants are performed to strengthen knee extension in polio patients. The time of contraction of muscles in relationship to gait is under investigation. Relative activity is evaluated by electromyographic recording of muscle action potentials. Voltages are recorded from three pairs of flexible wire electrodes implanted in the working muscles. The electromyograph incorporates three comme... View full abstract»

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  • Signal Theory Applied to the Analysis of Electroencephalograms

    Publication Year: 1961, Page(s):7 - 12
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1459 KB)

    Considered as a special problem in signal analysis, the representation of electroencephalograms (EEG's) involves the problem of determining a unique number for each degree of freedom. A method of representation is usually chosen because of the convenience of making the empirical measurements. One particular method of representation is discussed with emphasis on the problem of making the desired me... View full abstract»

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  • A Rational Framework for Interpreting the Behavioral Effects of Atmospheric Ions

    Publication Year: 1961, Page(s):12 - 16
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1208 KB)

    Air ionization is a normal phenomenon in the vicinity of electrical equipment. These atmospheric ions apparently have a significant effect upon man's performance. In general, the behavioral observations of past studies indicate that negative ions normalize subjects under some stress and positive ions have debilitating effects. The experimental studies done to date, however, have been deficient in ... View full abstract»

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  • A Rapidly Responding Narrow-Band Infrared Gaseous CO2 Analyzer for Physiological Studies

    Publication Year: 1961, Page(s):16 - 24
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2618 KB)

    The rapid determination of CO2 in expired air is one of the more important measurements in respiratory physiology. Of the CO2 transducers currently employed, the condenser microphone and thermal conductivity types have several disadvantages. The former is sensitive to mechanical and acoustical vibrations. The latter is sensitive to other gases and lacks response time. In most cases the over-all re... View full abstract»

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  • Digital Printout System for Whole Body Scanner

    Publication Year: 1961, Page(s):24 - 28
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3692 KB)

    A scintillation scanner has been developed for large-area mapping of high-energy gamma emitting radioisotope distributions in a patient undergoing metabolic studies. An unusual method of operation uses a solenoid-operated electric typewriter as a digital plotter. A three-figure entry of the count observed at each position of the stepwise scan pattern is typed with a decimal point locator to allow ... View full abstract»

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  • An Analog Computer Model for the Study of Water and Electrolyte Flows in the Extracellular and Intracellular Fluids

    Publication Year: 1961, Page(s):29 - 33
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1054 KB)

    A model has been designed that considers water flow as well as electrolyte flow in the two-compartment system consisting of the extracellular and intracellular fluids. The electrolyte flows are assumed to depend only on the electrolyte concentrations, and the water flow is assumed to depend on the electrolyte concentrations as well as the relative and absolute quantities of water. The intake rates... View full abstract»

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  • The Center for Vital Studies-A New Laboratory for the Study of Bodily Functions in Man

    Publication Year: 1961, Page(s):33 - 45
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (7202 KB)

    A clinical laboratory for monitoring a variety of physiological variables has been developed and is described in the following paper. The facility was designed around a system of modular interchangeable functional units. From past experience, the flexibility provided by such a system is essential for efficient operation, because frequently it is necessary to change the physiological event being re... View full abstract»

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  • The Average Response Computer (ARC): A Digital Device for Computing Averages and Amplitude and Time Histograms of Electrophysiological Response

    Publication Year: 1961, Page(s):46 - 51
    Cited by:  Papers (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4771 KB)

    The Average Response Computer has proved a valuable tool for measuring statistics of neuroelectric activity, particularly of evoked responses. One of the most important aspects of the instrument is it ability to operate "on line," thus enabling the experimenter to observe and modify on the basis of the calculated results while the experiment is in progress. Although the ARC was designed to operate... View full abstract»

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  • An Electronic Coordinate Transformer for Electrocardiography

    Publication Year: 1961, Page(s):52 - 54
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (543 KB)

    A considerable variation exists in the orientation of the hearts of different subjects. These variations make the interpretations of electrocardiograms substantially more difficult. They can be eliminated by a transformation of the "coordinates" of the three components of the heart's dipole moment to a new frame of reference which is rotated with respect to the original one. An electronic instrume... View full abstract»

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  • A Preamplifer for an Electrocardiograph Monitoring System

    Publication Year: 1961, Page(s):55 - 58
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (896 KB)

    An approach to a simple, dependable ECG preamplifier designed primarily for use in the operating room is presented. The 60-cps interference is analyzed and a method of reducing this intereference by utilizing the isolation offered by transformer coupling is described. A prototype unit is constructed and tested, and operational characteristics of this unit are presented. View full abstract»

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  • Pulse Modulation in Physiological Systems, Phenomenological Aspects

    Publication Year: 1961, Page(s):59 - 67
    Cited by:  Papers (24)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1938 KB)

    In the development of a quantitative understanding of physiological reflex arcs it becomes apparent that the concept of pulse-frequency modulation is bound to play an important part. Not only does the discrete nature of these signals introduce some effects of itself, but possibly more significant in the total picture are the dynamical factors introduced by the modulator and demodulator. There is g... View full abstract»

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  • Isolated Flying Spot Detection of Radiodensity Dis-Continuities-Displaying the Internal Structural Pattern of a Complex Object

    Publication Year: 1961, Page(s):68 - 72
    Cited by:  Papers (62)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2740 KB)

    A system is described which monitors a point in space and displays discontinuities of radiodensity as the point is moved in a scanning fashion through a plane. A high degree of isolation of this point from other points in the plane is achieved by putting these changes in radiodensity of the moving point into an electrical form which allows them to be separated from all other discontinuities within... View full abstract»

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  • Physics and Physicians

    Publication Year: 1961, Page(s):73 - 75
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (864 KB)

    The physician of tomorrow will almost certainly have to be a more sophisticated physicist than his predecessors of today or of yesterday. The physician is, perhaps unconsciously and perhaps reluctantly, a physicist to a very significant degree. Students anticipating a career in medicine need to be told and sold this idea since it affects their interest in physics courses during premedical training... View full abstract»

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  • Abstracts of Current Bio-Medical Electronic Research Projects

    Publication Year: 1961, Page(s):76 - 77
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  • Announcements

    Publication Year: 1961, Page(s): 78
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  • PGBME Affiliates

    Publication Year: 1961, Page(s): 79
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  • Editorial Policy for IRE Transactions on Bio-Medical Electronics

    Publication Year: 1961, Page(s): 79-a
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  • Information for authors

    Publication Year: 1961, Page(s): 79a
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  • Institutional listings

    Publication Year: 1961, Page(s): 79b
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Aims & Scope

This Transactions ceased publication in 1962. The current retitled publication is Biomedical Engineering, IEEE Transactions on

Full Aims & Scope