308 research outputs found

    Aerospace Medicine and Biology: A continuing bibliography with indexes, supplement 144

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    This bibliography lists 257 reports, articles, and other documents introduced into the NASA scientific and technical information system in July 1975

    Index to NASA Tech Briefs, January - June 1966

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    Index to NASA technological innovations for January-June 196

    Aerospace medicine and biology: A cumulative index to the continuing bibliography of the 1973 issues

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    A cumulative index to the abstracts contained in Supplements 112 through 123 of Aerospace Medicine and Biology A Continuing Bibliography is presented. It includes three indexes: subject, personal author, and corporate source

    USSR Space Life Sciences Digest, issue 21

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    This is the twenty-first issue of NASA's USSR Space Life Sciences Digest. It contains abstracts of 37 papers published in Russian language periodicals or books or presented at conferences and of a Soviet monograph on animal ontogeny in weightlessness. Selected abstracts are illustrated with figures and tables from the original. A book review of a work on adaptation to stress is also included. The abstracts in this issue have been identified as relevant to 25 areas of space biology and medicine. These areas are: adaptation, biological rhythms, body fluids, botany, cardiovascular and respiratory systems, cytology, developmental biology, endocrinology, enzymology, equipment and instrumentation, exobiology, gravitational biology, habitability and environmental effects, hematology, human performance, life support systems, mathematical modeling, metabolism, microbiology, musculoskeletal system, neurophysiology, operational medicine, perception, psychology, and reproductive system

    Aerospace Medicine and Biology: A continuing bibliography with indexes, supplement 140

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    This bibliography lists 306 reports, articles, and other documents introduced into the NASA scientific and technical information system in March 1975

    Aerospace Medicine and Biology: A cumulative index to a continuing bibliography

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    This publication is a cumulative index to the abstracts contained in Supplements 138 through 149 of AEROSPACE MEDICINE AND BIOLOGY: A CONTINUING BIBLIOGRAPHY. It includes three indexes -- subject, personal author, and corporate source

    Sergei Chakhotin – His Contributions to Social Psychology and Biophysics

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    This book is a biographical critique of the life and the scientific and public contributions of Sergei Chakhotin, an outstanding biophysicist, tireless innovator, an expert in crowd psychology and political propaganda. He was the first to use focused ultraviolet radiation to alter a living cell and developed a series of unique methods and tools for microscopic operations on test objects. Chakhotin found himself in the midst of political, military and social events in Europe during his life. While watching the emergence of totalitarian regimes, Chakhotin studied the problems of social psychology focusing upon human instinct and conditioned reflexes, particularly with regard to the behaviour of masses, and to elucidate the mechanism of transformating a large segment of the population such that it could be governed by leaders by means of political propaganda. Sergei Chakhotin concluded that freedom, peace, and clemency should be an integral part of human nature, those responses are fixed deeply in every human being. The achievement of this goal is possible in accordance with the Pavlov’s theory through the formation of a reasonable form of corresponding conditioned reflexes, propaganda, and especially education

    Design and Optimization Methodology of Sub-dermal Electroencephalography Dry Spike-Array Electrode

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    Monitoring bio-electric events is a common procedure, which provides medical data required in clinical and research applications. Electrophysiological measurements are applied in diagnosis as well as evaluation of the performance of different body organs and systems, e. g. the heart, muscles and the nervous system. Furthermore, it is staple feature in operation rooms and extensive care units. The performance of the recording system is affected by the tools and instrumentation used and the bio-electrode is a key-player in electrophysiology, hence, the improvements in the electrode recording technique will be directly reflected in the system?s performance in terms of the signal quality, recording duration as well as patient comfort. In this thesis, a design methodology for micro-spike array dry bio-electrodes is introduced. The purpose of this methodology is to meet the design specifications for portable long-term EEG recording and optimize the electrical performance of the electrodes by maximizing the electrode-skin contact surface area, while fulfilling design constraints including mechanical, physiological and economical limitations. This was followed by proposing a low cost fabrication technique to implement the electrodes. The proposed electrode design has a potential impact in enhancing the performance of the current recording systems, and also suits portable monitoring and long term recording devices. The design process was aided by using a software design and optimization tool, which was specifically created for this application. The application conditions added challenges to the electrode design in order to meet the required performance requirements. On the other hand, the required design specifications are not fulfilled in the current electrode technologies which are designed and customized only for short term clinical recordings. The electrode theory of application was verified using an experimental setup for an electrochemical cell, but the overall performance including measuring the electrode impedance is awaiting a clinical trial

    Communications Biophysics

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    COntains reports on six research projects.National Institutes of Health (Grant 2 P01 MH-04737-06)National Institutes of Health (Grant 5 ROl NB-05462-02)Joint Services Electronics Programs (U. S. Army, U. S. Navy, and U. S. Air Force) under Contract DA 36-039-AMC-03200(E)National Science Foundation (Grant GK-835)National Aeronautics and Space Administration (Grant NsG-496
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