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  • Other Sources  (2,857)
  • BIOSCIENCES  (1,698)
  • PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR  (1,158)
  • Cell & Developmental Biology
  • Deutschland
  • 1970-1974  (2,857)
Collection
Source
Keywords
Years
Year
  • 1
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    Phänologie und Reife des Körnermaises in der Bundesrepublik Deutschland in Abhängigkeit von Witterung und Klima (1974)
    In:  Diss. Weihenstephan.
    Details
    Publication Date: 1974
    Description: Analyse des Klimas und der Witterung in Bezug zu den Maiserträgen des Versuchsfeldes KATASTER-BESCHREIBUNG: KATASTER-DETAIL:
    Keywords: Deutschland ; 1956-74 ; Ertrag ; Klima ; Korrelationsmethode ; Mais ; Niederschlag ; Temperatur
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    BIBLIOGRAPHY INKA BB
  • 2
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    Space and man (1974)
    In:  CASI
    Details
    Publication Date: 2006-01-11
    Description: The effects of man's entry into space on changes in economics and technology, politics and law, science, philosophy, and art are considered. A single world economy, extracting from the natural resources of the moon and other cosmic bodies raw materials and energy, will avoid terrestrial limitations and improve society by eliminating the inequalities of economic and social status. However, a spacecraft for interplanetary travel require thermonuclear engines that achieve an escape velocity of 0.1 times the speed of light in order to allow an astronaut stellar expedition corresponding to the active life of a single generation.
    Keywords: BIOSCIENCES
    Type: Inhabited Space, Pt. 2 (NASA-TT-F-820); p 128-134
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  • 3
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    Detection of life in space (1974)
    In:  CASI
    Details
    Publication Date: 2006-01-11
    Description: The selection of spacecraft experiments and equipment to detect extraterrestrial life outside earth centers on observations of chemical compounds similar to amino acids and proteins, on signs of metabolism in the form of nutrient absorption, and life form impressions in fossiles or signs of civilization.
    Keywords: BIOSCIENCES
    Type: Inhabited Space, Pt. 2 (NASA-TT-F-820; p 42-52
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  • 4
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    Space psychology (1974)
    In:  CASI
    Details
    Publication Date: 2006-01-11
    Description: Psychological selection of astronauts considers mental responses and adaptation to the following space flight stress factors: (1) confinement in a small space; (2) changes in three dimensional orientation; (3) effects of altered gravity and weightlessness; (4) decrease in afferent nerve pulses; (5) a sensation of novelty and danger; and (6) a sense of separation from earth.
    Keywords: BIOSCIENCES
    Type: Inhabited Space, Pt. 2 (NASA-TT-F-820); p 29-41
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  • 5
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    Life in space (1974)
    In:  CASI
    Details
    Publication Date: 2006-01-11
    Description: Biotechnological aspects of manned space flight are reviewed and the basic biological problems of training and sustaining man in interplanetary flights are elaborated.
    Keywords: BIOSCIENCES
    Type: Inhabited Space, Pt. 2 (NASA-TT-F-820); p 17-28
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  • 6
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    Proton-deuteron double scattering (1974)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: A simple but accurate form for the proton-deuteron elastic double scattering amplitude, which includes both projectile and target recoil motion and is applicable at all momentum transfer, is derived by taking advantage of the restricted range of Fermi momentum allowed by the deuteron wave function. This amplitude can be directly compared to approximations which have neglected target recoil or are limited to small momentum transfer; the target recoil and large momentum transfer effects are evaluated explicitly within the context of a Gaussian model.
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Physical Review C - Nuclear Physics; vol. 10
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  • 7
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    Characterization of charge states of energetic ions in solids from associated K X-ray production (1974)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: The strong projectile-charge-state dependence of K X-ray production in gases establishes a charge-state scale for ions penetrating solids. Si K X-ray cross sections in gaseous SiH4 were compared to those in solid Si for 40-MeV O (6+ to 8+) and 86-MeV Ar (6+ to 16+) projectiles. For Ar an effective charge of 11 plus or minus one is found compared to an emergent charge of 14.8 plus or minus 0.5. The result is discussed in terms of alternate models for steady-state excitation in solids.
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Physical Review Letters; 33; Sept. 23
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  • 8
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    Alterations in left ventricular volumes induced by Valsalva manoeuvre (1974)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Five patients were studied with left ventriculography during different phases of the Valsalva manoeuvre. Small doses of contrast medium allowed adequate repetitive visualization of the left ventricle for volume calculation. During strain phase, the volume of the left ventricle decreased by nearly 50 per cent in each case, and stroke volume and cardiac output also dropped strikingly. Release of straining was attended by a sharp rebound of left ventricular volume to control levels, with a transient surge of increased cardiac output 42 per cent above that of the resting state.
    Keywords: BIOSCIENCES
    Type: British Heart Journal; 36; July 197
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  • 9
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    Spin projection of single-determinant wavefunctions (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: The components of the one- and two-particle density matrices resulting from spin projection of a single-determinant wave function are rederived by the method of expansion in terms of the natural orbitals of charge density, and the results are found to diverge from those given by Harriman and Sando for the two-particle case. The theory is generalized to include molecules with unequal numbers of electrons and basis orbitals and is applied to a number of organic molecules and ions. The correctness and internal consistency of the results argue in favor of the modification described.
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Journal of Chemical Physics; 61; Aug. 1
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  • 10
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    Apollo space crew cardiovascular evaluations (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Cardiovascular responses associated with pre- and postflight orthostatic tolerance evaluations of Apollo crewmen are presented with a brief historical survey and a discussion of their implications for future manned space flight. Heart rates were increased while systolic and pulse pressures were decreased during the immediate postflight orthostatic evaluation. A postflight elevation in resting heart rate was a less frequent finding.
    Keywords: BIOSCIENCES
    Type: Aerospace Medicine; 45; Aug. 197
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  • 11
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    Recovery of medically important microorganisms from Apollo astronauts (1974)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Microbiological samples were obtained from the crewmembers of the Apollo 13, 14, 15, 16, and 17 spaceflights. These specimens were analyzed for the presence of medically important microorganisms with Staphylococcus aureus, Pseudomonas aeruginosa, Tricophyton mentagrophytes, Tricophyton rubrum, and Candida albicans being discussed in detail. Preflight isolation of crewmembers was found to coincide with a complete absence of inflight disease events and is recommended for future spaceflights. No autoinfection response (microbial shock) occurred after any of the reported spaceflights.
    Keywords: BIOSCIENCES
    Type: Aerospace Medicine; 45; Aug. 197
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  • 12
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    New interferometric observations of Ar I in the photographic region (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Optical Society of America; vol. 64
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  • 13
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    Alteration of pituitary-adrenal dynamics induced by a water deprivation regimen (1974)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Experiments are described which were designed to assess the degree of adaptation that occurs in rats chronically exposed to the stress of a water-deprivation regimen and to determine if that adaptation represents a normalization of the hypothalamic-pituitary-adrenal axis. There were no significant differences in mean corticosterone concentrations among control nondeprived rats 1, 4, and 8 weeks after the start of the experiment. The water-deprived rats, however, had significantly elevated plasma steroids 1 and 4 weeks after the onset of deprivation as compared to controls, but not after 8 weeks. Thus, there was a significant decrease in mean plasma corticosterone levels during water deprivation from 1 week to 8 weeks.
    Keywords: BIOSCIENCES
    Type: Physiology and Behavior; 12; 1974
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  • 14
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    Relative cross section and depolarization of NOCl (1974)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: A standard photon counting technique and an argon-ion laser with 4545, 4579, 4727, 4765, 4880, 4965, 5017 and 5145-A lasing lines, providing a measurable Raman spectrum from NOCl, were used in the measurement of the Raman scattering cross section of NOCl at a Raman shift of 334.4 plus or minus 1.6/cm in relation to the N2 Raman cross section. A polarization analyzer and a quartz wedge were placed in front of the entrance slit of the double monochromator for depolarization measurements. Diagrams are plotted to show the scattering cross section and depolarization measurement results.
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Applied Physics Letters; 25; Aug. 15
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  • 15
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    Addendum to 'Autoionization states in He and H/-/ by the stabilization method' (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: The positions of the resonances calculated by the stabilization method can be improved by inclusion of the shift as given by Hazi and Fels. It is also indicated that the phase shifts calculated by the Harris method at incident energies corresponding to the stabilized roots give the positions and the widths of the resonances reasonably well.
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Physical Review A - General Physics; vol. 10
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  • 16
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    Differential cross sections for electron impact ionization of helium (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Physical Review A - General Physics; vol. 10
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  • 17
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    Effects of simulated weightlessness on responses of untrained men to +Gz acceleration (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: This study documents bedrest-induced metabolic and physiologic changes in six untrained men exposed, following a two-week period of simulated weightlessness, to possible +Gz acceleration profiles anticipated for Space Shuttle vehicle travel. All subjects demonstrated decreased +Gz tolerance following simulated weightlessness. While only one of six subjects could not tolerate the +Gz profile in the control phase of the study, three of the six could not complete the postbed-rest study. The use of an inflated standard Air Force cutaway G-suit improved +Gz tolerance in all subjects, but two of six subjects still failed to complete the profile. These findings are discussed in reference to the selection of untrained humans for Space Shuttle vehicle travel.
    Keywords: BIOSCIENCES
    Type: Journal of Applied Physiology; 36; June 197
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  • 18
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    Electron avalanche in liquid xenon (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Measurements in liquid Xe are reported of the characteristic function that describes the avalanche, the first Townsend coefficient. An electron avalanche occurs when the drifting electrons attain sufficient kinetic energy from the electric field to cause additional ionization. Data on the avalanche were obtained by studying the pulses in a liquid-filled proportional chamber as a function of applied voltage and anode diameter. The results of the investigation show that the avalanche of free electrons in purified liquid Xe is adequately described by the same formalism used for the avalanche of electrons in gases.
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Physical Review A - General Physics; vol. 9
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  • 19
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    Dipole and quadrupole integrals for the C I, N I, and O I sequences (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: The Coulomb approximation tables of Oertel and Shomo, together with binding-energy values obtained by a screening approximation, have been used to produce values of the dipole and quadrupole radial integrals needed in obtaining transition probabilities for ions of six, seven, and eight electrons. Some comparisons with more rigorously calculated values show that the present values are quite accurate, especially for ions of higher atomic number.
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: vol. 27; Mar. 197
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  • 20
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    Quadrupole moment of CO, N2, and NO/+/ (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Evaluation of quadrupole moments obtained for CO, N2, and NO(+) with multiconfiguration self-consistent-field wave functions chosen by the optimized valence configuration (OVC) approach of Wahl and Das (1972). The quadrupole moments thus obtained are compared with both experimental and Hartree-Fock values. The Hartree-Fock results are found to be not very accurate for N2, especially if vibrational averages over vibrational levels greater than 1 or 2 are to be taken. The agreement between the OVC quadrupole moment and the experimental values is found to be best for CO.
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Journal of Chemical Physics; 60; Apr. 1
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  • 21
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    Crystallization of dense neutron matter (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: The equation of state for cold neutron matter at high density is studied in the t-matrix formulation, and it is shown that energetically it is convenient to have neutrons in a crystalline configuration rather than in a liquid state for values of the density exceeding 1600 Tg/cu cm. The study of the mechanical properties indicates that the system is stable against shearing stresses. A solid core in the deep interior of heavy neutron stars appears to offer the most plausible explanation of speed-ups observed in the Vela pulsar.
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Physical Review D - Particles and Fields; vol. 9
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  • 22
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    /p, t/ reactions on odd-A nuclei and the weak-coupling core-excitation model (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Physics Letters; 49B; Apr. 1
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  • 23
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    Reinvestigation of rotational-line intensity factors in diatomic spectra (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: The theory of the intensity factors of rotational lines in diatomic molecular spectra is reviewed with an emphasis on removing obscurities and resolving ambiguities that exist. For example, a unified intensity-factor sum rule is derived that is valid for all spin-allowed and spin-forbidden dipole transitions. Further, it is shown that the electronic transition moments can always be chosen to be real and that a few simple rules ensure the application of consistent phase factors.
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: vol. 27; Jan. 197
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  • 24
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    Rigorous precision p-wave positron-hydrogen scattering calculation (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Rigorous lower-bound p-wave positron-hydrogen phase shifts are calculated below the positronium pickup threshold. The wave function is expanded in terms of the two linearly independent D functions each multiplied by an associated Hilleraas-type radial function with two parameters. Adiabatic and nonadiabatic corrections have been included. The results are found to be larger than Armstead's (1968) in all cases near the upper edge of his estimated uncertainty.
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Physical Review A - General Physics; vol. 9
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  • 25
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    Angular distributions and polarization fractions of helium resonance radiation /n 1P-1 1S/ in the extreme ultraviolet (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Angular intensity distributions of helium resonance photons, experimentally determined for the first time with respect to the exciting electron beam, are presented. The angular intensity distributions were measured at selected electron-impact energies from 25 to 150 eV. The results obtained are slightly higher than theoretical data for electron impact energies from 80 to 150 eV.
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Physical Review A - General Physics; vol. 9
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  • 26
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    Annihilation during positron-hydrogen collisions (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Using the precision s- and p-wave elastic-scattering wave functions obtained previously, we have calculated the annihilation rate for positrons colliding with hydrogen atoms below the positronium-formation threshold. The s-wave results agree well with those of Humberston, while the p-wave results, which are new, contribute about 20% of the total at the higher energies.
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Physical Review A - General Physics; vol. 9
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  • 27
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    Photoionization from excited states of helium (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Physical Review A - General Physics; vol. 9
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  • 28
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    Determination of left ventricular size and shape (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Significant advances have occurred over the past 15 years in the ability to measure ventricular dimensions. Angiocardiography still remains the most reliable method for overall determination of chamber size and shape and serves as a standard for calibration or comparison for newer methods. Improvements in the use of radiographic methods over the next few years are anticipated with more extensive use of multiplane studies associated with repeated injections of improved contrast materials that produce fewer physiological effects or with substances that adhere to the endocardial surfaces. It is also anticipated that existing methods for automatically obtaining dimensional information from X rays will be continued and improved.
    Keywords: BIOSCIENCES
    Type: Circulation Research; 34; Jan. 197
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  • 29
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    Serotonin and pituitary-adrenal function (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: An investigation is conducted to evaluate the response of the pituitary-adrenal system to a stress stimulus in the rat. In the investigation brain serotonin synthesis was inhibited with p-chlorophenylalanine. In other tests the concentration of serotonin was enhanced with precursors such as tryptophan or 5-hydroxytryptophan. On the basis of the results obtained in the study it is speculated that in some disease states there is a defect in serotonergic neuronal processes which impairs pituitary-adrenal feedback mechanisms.
    Keywords: BIOSCIENCES
    Type: Nature; 248; Mar. 29
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  • 30
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    Crossed beam study of the reaction O/+/ + N2 yields NO/+/ + N (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: The kinematics of the reaction O(+)(4 S) + N2 yields NO(+) + N were studied using crossed molecular beams. Product angular and energy distributions were measured for the initial relative translational energy range from 1.5 to 15.8 eV. The products are formed in their ground electronic states. The product distributions are described, with some deviations, by the spectator stripping model. No evidence was found for a persistent complex or for a second mechanism. A scattering chamber study of 0 deg lab was made of the related reactions 15N(+) + 14NO yields 15N14N(+), 15NO(+), 14NO(+). The results obtained are discussed in terms of possible surface hopping effects.
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Journal of Chemical Physics; 60; Mar. 1
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  • 31
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    Measurement of microwave fine structure in OH infrared transitions using frequency mixing with metal to metal infrared diodes (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Journal of Chemical Physics; 60; Feb. 15
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  • 32
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    Life span and fine structural changes in oxygen-poisoned drosophila melanogaster (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Keywords: BIOSCIENCES
    Type: Aerospace Medicine; 45; Mar. 197
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  • 33
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    High-density Stark profiles of two neutral helium lines and their forbidden components (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Measured and calculated profiles are compared for two neutral helium lines, He I (4471 and 6678 A), and their forbidden components at high electron densities. Calculations were done at the measured plasma conditions and are compared directly with the experimental profiles. Good agreement is found between theory and experiment.
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Physical Review A - General Physics; vol. 9
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  • 34
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    Autoionization states in He and H/-/ by the stabilization method (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: The stabilization method for positions and widths of resonances has been applied up to now only to model problems or to problems for which definitive calculations are not possible. The method is now applied to autoionization states in He and H(-), where accurate calculations are available. It is concluded that reasonably accurate results can be obtained by this method.
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Physical Review A - General Physics; vol. 9
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  • 35
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    Irregular bilayer structure in vesicles prepared from Halobacterium cutirubrum lipids (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Fluorescent probes were used to study the structure of the cell envelope of Halobacterium cutirubrum, and, in particular, to explore the effect of the heterogeneity of the lipids in this organism on the structure of the bilayers. The fluorescence polarization of perylene was followed in vesicles of unfractionated lipids and polar lipids as a function of temperature in 3.4 M solutions of NaCl, NaNO3, and KSCN, and it was found that vesicles of unfractionated lipids were more perturbed by chaotropic agents than polar lipids. The dependence of the relaxation times of perylene on temperature was studied in cell envelopes and in vesicles prepared from polar lipids, unfractionated lipids, and mixtures of polar and neutral lipids.
    Keywords: BIOSCIENCES
    Type: Biochimica et Biophysica Acta; 356; 1974
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  • 36
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    Human radiation tolerance (1974)
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    Publication Date: 2011-08-16
    Description: The acute radiation syndrome in man is clinically bounded by death at high dose levels and by the prodromal syndrome of untoward physiological effects at minimal levels of clinically effective exposure. As in lower animals, man experiences principally three acute modes of death from radiation exposure (Bond et al., 1965). These are known collectively as the lethal radiation syndromes: central nervous system death, gastrointestinal death, and hematopoietic death. The effect of multiple exposure on lethality, the effect of multiple exposure on hematopoietic recovery, and quantitative aspects of cell and tissue repair are discussed.
    Keywords: BIOSCIENCES
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  • 37
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    Ultrastructural response of rat lung to 90 days' exposure to oxygen at 450 mm Hg (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Young Sprague-Dawley rats were exposed to 100% oxygen at 450 mm Hg in constant environment capsules for 90 days. Lung tissue examined by electron microscopy revealed a number of changes, many similar to those observed after exposure to oxygen at 760 mm Hg for shorter periods of time. Alterations in vesicle size and number and in mitochondrial matrix and cristae appear in both the endothelial and epithelial cells. Blebbing and rarefication of cytoplasm occur in both cell layers of the alveolo-capillary wall. Also seen are fluid in the basement membrane, platelets in the capillaries, and alveolar fluid and debris. All of these alterations occur at 1 atm exposure. However, after exposure to 450 mm Hg the changes are not as widespread nor as destructive as they are at the higher pressure.
    Keywords: BIOSCIENCES
    Type: Aerospace Medicine; 45; Sept
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  • 38
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    Microbial detection method based on sensing molecular hydrogen (1974)
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    Publication Date: 2011-08-16
    Description: An approach involving the measurement of hydrogen evolution by test organisms was used to detect and enumerate various members of the Enterobacteriaceae group. The experimental setup for measuring hydrogen evolution consisted of a test tube containing two electrodes plus broth and organisms. The test tube was kept in a water bath at a temperature of 35 C. It is pointed out that the hydrogen-sensing method, coupled with the pressure transducer technique reported by Wilkins (1974) could be used in various experiments in which gas production by microorganisms is being measured.
    Keywords: BIOSCIENCES
    Type: Applied Microbiology; 27; May 1974
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  • 39
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    Treatment of the external epicondylitis of the humerus with a magnetic field (1974)
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    Publication Date: 2011-08-16
    Description: The therapeutic effect of a constant and varying magnetic field on epicondylitis of the humerus is studied on ninety patients. Good results are obtained from the treatment (recovery of 80%, considerable improvement in 14.5%). The method is recommended for clinical application.
    Keywords: BIOSCIENCES
    Type: Studies in Geomagnetism, Aeronomy and Solar Phys. (NASA-TT-F-15862); p 191-197
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  • 40
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    Effect of magnetic bracelets on the coagulation and anticoagulation systems of the blood of patients with hypertension (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: The data which have been obtained on the influence of magnetic bracelets on the coagulation and anticoagulation systems of the blood indicate that the wearing of magnetic bracelets results in a decrease in the coagulation activity of the blood and an increase in the activity of the anticoagulation system. These changes must be viewed as favorable for patients with cardiovascular pathology.
    Keywords: BIOSCIENCES
    Type: Studies in Geomagnetism, Aeronomy and Solar Phys. (NASA-TT-F-15862); p 167-190
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  • 41
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    Changes in the fibrinogen-fibrin system following a 20-hour exposure of rabbits to a magnetic field (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Prolonged exposure of animals to a constant magnetic field resulted in a sharp increase in the amount of fibrinogen. The addition of EACA to the plasma of experimental rabbits as well as protamine sulfate caused an additional increase in the amount of fibrinogen. A 20-hour exposure was accompanied by phenomena of paralysis of the pelvic limbs and death of some of the animals.
    Keywords: BIOSCIENCES
    Type: Studies in Geomagnetism, Aeronomy and Solar Phys. (NASA-TT-F-15862); p 163-166
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  • 42
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    Influence of a constant magnetic field on the fibrinogen-fibrin system (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: The effect of a constant magnetic field with a strength of 2500 oersteds on the fibrinogen-fibrin system was studied in the organism of healthy rabbits with exposure times of 1 and 5 hours. The results obtained indicate disruptions in the stage of conversion of fibrinogen to fibrin and an increase in the amount of fibrinogen.
    Keywords: BIOSCIENCES
    Type: Studies in Geomagnetism, Aeronomy and Solar Phys. (NASA-TT-F-15862); p 157-161
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  • 43
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    Influence of a constant magnetic field on thrombocytes (1974)
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    Publication Date: 2011-08-16
    Description: In an experiment on white mice it was found that a constant electromagnetic field with strength of 250-275 oersteds is biologically active at an exposure of 55 minutes. Qualitative and morphological changes in thrombocytes 1-3 days following exposure reduced their numbers, prolonged blood coagulation time and increased the number of leucocytes.
    Keywords: BIOSCIENCES
    Type: Studies in Geomagnetism, Aeronomy and Solar Phys. (NASA-TT-F-15862); p 141-147
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  • 44
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    The protective effect of a constant magnetic field (1974)
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    Publication Date: 2011-08-16
    Description: The protective effect of a constant magnetic field sharply reduced spontaneous lysis of E. coli cells when subjected to ultraviolet radiation. A protective effect of a CMF was found in a study of tissue cultures of normally growing cells (kidney epithelium) and cancer cells (cells from a cancer of the larynx). The protective effect of a CMF is also seen in a combined exposure of tissue cultures to X-rays and CMF energy (strength of the CMF was 2000 oersteds with a gradient of 500 oersteds/cm). The data obtained are of interest to experimental oncology (development of new methods of treating malignant tumors).
    Keywords: BIOSCIENCES
    Type: Studies in Geomagnetism, Aeronomy and Solar Phys. (NASA-TT-F-15862); p 148-156
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  • 45
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    Method of magnetobiological indication in clinical laboratory practice (1974)
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    Publication Date: 2011-08-16
    Description: Data are presented on the use of the method of magnetobiological indication for defining the immunobiological state of patients with very serious diseases. It has been found that the enzymes of a patient react more sensitively to the energy from a magnetic field. It is important that the magnetoreactivity of the enzymes, like the cell forms of the blood in the patients, have a certain relationship to the clinical-nosological forms and the dynamics of the illness of the subject.
    Keywords: BIOSCIENCES
    Type: Studies in Geomagnetism, Aeronomy and Solar Phys. (NASA-TT-F-15862); p 129-140
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  • 46
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    Influence of a constant and variable magnetic field on the coagulation of human blood in vitro and in vivo (1974)
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    Publication Date: 2011-08-16
    Description: The influence of constant and varying magnetic fields on the coagulation of the blood was studied in experiments performed in vitro and vivo. In the in vitro tests it was found that a constant magnetic field with a strength of 100 or 200 oersteds influences the coagulation of the blood, retarding it in some cases and speeding up the coagulation time in others. In the in vivo studies, both retarding and accelerating effects were likewise observed with respect to the coagulation of the blood, but the nature of the change was a function of the background. A normalizing effect of the magnetic field on the coagulation of the blood was observed.
    Keywords: BIOSCIENCES
    Type: Studies in Geomagnetism, Aeronomy and Solar Phys. (NASA-TT-F-15862); p 124-128
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  • 47
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    Change in fibrinolytic activity under the influence of a constant magnetic field (1974)
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    Publication Date: 2011-08-16
    Description: The fibrinolytic activity of plasma changes under the influence of a constant magnetic field (CMF) with a strength of 250 or 2500 oersteds. CMF shows a tendency toward normalization of fibrinolytic processes in the presence of pathological disturbances in fibrinolysis activation.
    Keywords: BIOSCIENCES
    Type: Studies in Geomagnetism, Aeronomy and Solar Phys. (NASA-TT-F-15862); p 117-123
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  • 48
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    Change in blood coagulation indices as a function of the incubation period of plasma in a constant magnetic field (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: The influence of a constant magnetic field (CMF) with a strength of 250 and 2500 oersteds on the recalcification reaction and the tolerance of plasma to heparin was studied as a function of the exposure time of the plasma to the CMF. The maximum and reliable change in the activation of the coagulatory system of the blood was observed after a 20-hour incubation of the plasma in a CMF. As the exposure time increased, the recalcification reaction changed insigificantly; the difference between the mean arithmetic of the experiment and control values was not statistically reliable. The tolerance of the plasma to heparin as a function of the exposure time to the CMF of the plasma was considerably modified, an was statistically reliable.
    Keywords: BIOSCIENCES
    Type: Studies in Geomagnetism, aeronomy and Solar Phys. (NASA-TT-F-15862); p 109-116
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  • 49
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    Repeated action of a constant magnetic field on the blood coagulation system in artificially produced anemia (1974)
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    Publication Date: 2011-08-16
    Description: Changes are discussed in the coagulatory system of the blood in rabbits under the influence of a constant magnetic field of an intensity of 2500 oersteds against the background of artificially induced anemia. Reversibility of the changes produced and the presence of the adaptational effect are noted. Taking all this into consideration, the changes involving the coagulatory system of the blood which arise under the influence of a constant magnetic field may be considered to have a nerve-reflex nature.
    Keywords: BIOSCIENCES
    Type: Studies in Geomagnetism, Aeronomy and Solar Phys. (NASA-TT-F-15862); p 97-108
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  • 50
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    The influence of a constant magnetic field on the coagulatory system of the blood in an experiment (1974)
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    Publication Date: 2011-08-16
    Description: The influence of a constant magnetic field with a strength of 2500 oersteds on the coagulatory system of the blood in rabbits was studied; the animals were subjected to this field for one and five hours. The magnetic field acts on the coagulatory system of the blood after only one hour exposure. Repeated 5-hour exposures cause activation of the anticoagulatory system in the blood and causes distinctive effects on the subsequent changes in the coagulatory system of the blood. It is quite likely that in this instance the adaptational properties of the organism make themselves felt.
    Keywords: BIOSCIENCES
    Type: Studies in Geomagnetism, Aeronomy and Solar Phys. (NASA-TT-F-15862); p 82-96
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  • 51
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    Effect of a magnetic field of extremely low intensity on the coagulatory system of the blood (1974)
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    Publication Date: 2011-08-16
    Description: The influence of a magnetic field of 10,000 gamma on the conditions of the coagulatory system of rabbits was studied. The results from a number of experiments indicate that the action of a very weak magnetic field produces an increase in the coagulatory activity of the blood.
    Keywords: BIOSCIENCES
    Type: Studies in Geomagnetism, Aeronomy and Solar Phys. (NASA-TT-F-15862); p 73-81
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  • 52
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    Reactions of the nervous system to magnetic fields (1974)
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    Publication Date: 2011-08-16
    Description: This magnetobiological survey considers sensory, nervous, stress and genetic effects of magnetic fields on man and animals. It is shown that the nervous system plays an important role in the reactions of the organism to magnetic fields; the final biological effect is a function of the strength of the magnetic fields, the gradient, direction of the lines of force, duration and location of the action, and the functional status of the organism.
    Keywords: BIOSCIENCES
    Type: Studies in Geomagnetism, Aeronomy and Solar Phys. (NASA-TT-F-15862); p 59-72
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  • 53
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    Results of comparison of the dynamics of the epidemic process with changes in the planetary index of magnetic disturbance (1974)
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    Publication Date: 2011-08-16
    Description: Possible pathways for the action of factors related to solar activity and its magnetic effects on the epidemic process are discussed.
    Keywords: BIOSCIENCES
    Type: Studies in Geomagnetism, Aeronomy and Solar Phys. (NASA-TT-F-15862); p 31-38
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  • 54
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    Statistical evaluation of the significance of the influence of abrupt changes in solar activity on the dynamics of the epidemic process (1974)
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    Publication Date: 2011-08-16
    Description: Statistical evaluations of the significance of the relationship of abrupt changes in solar activity and discontinuities in the multi-year pattern of an epidemic process are reported. They reliably (with probability of more than 99.9%) show the real nature of this relationship and its great specific weight (about half) in the formation of discontinuities in the multi-year pattern of the processes in question.
    Keywords: BIOSCIENCES
    Type: Studies in Geomagnetism, Aeronomy and Solar Phys. (NASA-TT-F-15862); p 49-58
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  • 55
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    The problem of the periodicity of the epidemic process (1974)
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    Publication Date: 2011-08-16
    Description: An analysis of data from epidemics makes it possible to determine their principal causes, governed by environmental factors (solar activity, etc.) The results of an analysis of the periodicity of the epidemic process in the case of diphtheria are presented which was conducted with the aid of autocorrelation and spectral methods of analysis. Numerical data (annual figures) are used on the dynamics of diphtheria in 50 regions (points) with a total duration of 2,777 years.
    Keywords: BIOSCIENCES
    Type: Studies in Geomagnetism, Aeronomy and Solar Phys. (NASA-TT-F-15862); p 39-48
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  • 56
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    The influence of weather on fibrinolysis and fibrinogenolysis (1974)
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    Publication Date: 2011-08-16
    Description: Analysis of fibrinolysis and fibrinogenolysis indices by month showed an increase in the activity of these processes from winter to summer (1967-1968). At all seasons of the year, fibrinolysis and fibrinogenolysis increase during weather of the cyclonic type with passage of fronts and sharp fluctuations in meteorological factors in the atmosphere.
    Keywords: BIOSCIENCES
    Type: Studies in Geomagnetism, Aeronomy and Solar Phys. (NASA-TT-F-15862); p 24-30
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  • 57
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    Fibrinolysis and fibrinogenolysis on magnetically-active days (1974)
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    Publication Date: 2011-08-16
    Description: On magnetically-active days, activation of fibrinolysis and fibrinogenolysis is observed. The increase in fibrinolysis and fibrinogenolysis begins on the day of the onset of a magnetic storm, reaching a maximum in 24 hours. Activation is higher on days with magnetic storms with a sudden onset and a C index of 1.5-2.0.
    Keywords: BIOSCIENCES
    Type: Studies in Geomagnetism, Aeronomy and Solar Phys. (NASA-TT-F-15862); p 16-20
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  • 58
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    Influence of synoptic processes on fibrinolysis and fibrinogenolysis in healthy persons (1974)
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    Publication Date: 2011-08-16
    Description: It is shown that on days with frontal activity in the atmosphere the levels of fibrinolysis and fibrinogenolysis are increased. The reactions of fibrinolysis and fibrinogenolysis to the passage of warm and cold fronts varies with the season of the year.
    Keywords: BIOSCIENCES
    Type: Studies in Geomagnetism, Aeronomy and Solar Phys. (NASA-TT-F-15862); p 20-23
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  • 59
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    Influence of solar activity on fibrinolysis and fibrinogenolysis (1974)
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    Publication Date: 2011-08-16
    Description: During periods of high solar activity fibrinolysis and fibrinogenolysis are increased. A direct correlative relationship is established between the indices of fibrinolysis, fibrinogenolysis and solar flares which were recorded two days before the blood was collected for analysis.
    Keywords: BIOSCIENCES
    Type: Studies in Geomagnetism, Aeronomy and Solar Phys. (NASA-TT-F-15862); p 12-15
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  • 60
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    Notes on the concept of normal values employed in clinical practice (1974)
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    Publication Date: 2011-08-16
    Description: The question of the considerable variations in various blood parameters under the influence of changes in environmental factors is discussed. Recommendations are given that so-called normal values should be given special attention. Fibrinolytic and fibrinogenolytic activity studies on the blood in healthy human beings revealed significant differences for individual months and even on specific days. Changes in the activity of fibrinolysis and fibrinogenolysis show a correlation with changes in the meteorological conditions, seasonal variations and changes in solar activity.
    Keywords: BIOSCIENCES
    Type: Studies in Geomagnetism, Aeronomy and Solar Phys. (NASA-TT-F-15862); p 9-11
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  • 61
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    Heliobiology, its development, successes and tasks (1974)
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    Publication Date: 2011-08-16
    Description: Heliobiology studies the influence of changes in solar activity on life. Considered are the influence of periodic solar activity on the development and growth of epidemics, mortality from various diseases, the functional activity of the nervous system, the development of psychic disturbances, the details of the development of microorganisms and many other phenomena in the living world.
    Keywords: BIOSCIENCES
    Type: Studies in Geomagnetism, Aeronomy and Solar Phys. (NASA-TT-F-15862); p 1-8
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  • 62
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    Rhythmic variation in heart rate and respiration rate during space flight - Apollo 15 (1974)
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    Publication Date: 2011-08-16
    Description: As part of the operational biomedical monitoring for Apollo manned missions, ECG and respiration rate are telemetered at selected intervals to mission control. The data were collected as part of this monitoring program. These data were evaluated for circadian and ultradian rhythmicity because of their uniqueness. The ability to detect and quantitate biorhythms in living systems during space flight is an important aspect of evaluating hypotheses concerning the underlying mechanisms of these phenomena. Circadian variation in heart rate during space flight is demonstrated here. In analyzing generated time series data it has been found that period discrimination is much better than the theoretical limit.
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  • 63
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    Hydrocortisone and ACTH levels in manned spaceflight (1974)
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    Publication Date: 2011-08-16
    Description: The plasma hydrocortisone, plasma ACTH, and urinary hydrocortisone values were recorded for each man of the crews of Apollo flights eight through fifteen, 30, 14, and 5 days before flight, immediately after spaceflight recovery, and on future days until the return of most variables to preflight values. The plasma and urinary preflight hydrocortisone values were significantly higher than the postflight values. This result is discussed in terms of three possible explanations: (1) the adrenal-cortical function is suppressed during spaceflight; (2) the activity in flight may amount to stressful exercise, which tests have shown can cause a decrease in plasma adrenocortical hormones; and (3) the in-flight work-rest cycles may be such as to affect the circadian periodicity of the pituitary-adrenal function.
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  • 64
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    Fine structure of tannin accumulations in callus cultures of Pinus elliotti /slash pine/ (1974)
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    Publication Date: 2011-08-16
    Keywords: BIOSCIENCES
    Type: Canadian Journal of Botany; 52; 3, 19; 1974
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  • 65
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    Absorption cross sections of stratospheric molecules (1974)
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    Publication Date: 2011-08-16
    Description: Two classes of molecular species must be considered in a calculation of photochemical rates in the stratosphere. The first class consists of molecular oxygen and ozone, while the second class contains the remainder of the minor constituents. If accurate values of the transmitted fluxes are required at large optical depths, the cross sections for molecular oxygen and ozone must be known to within a few per cent at least. On the other hand, the photochemical rates for the minor species are given simply by the relevant cross sections. A review of published cross sections is presented, giving attention to molecular oxygen, ozone, nitric oxide, nitrogen dioxide, nitrous oxide, nitric acid, ammonia, water vapor, hydrogen peroxide, carbon monoxide, carbon dioxide, and sulfur dioxide.
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Canadian Journal of Chemistry; 52; 8, 19; 1974
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  • 66
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    Auditory and visual evoked potentials during hyperoxia (1974)
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    Publication Date: 2011-08-16
    Description: Experimental study of the auditory and visual averaged evoked potentials (AEPs) recorded during hyperoxia, and investigation of the effect of hyperoxia on the so-called contingent negative variation (CNV). No effect of hyperoxia was found on the auditory AEP, the visual AEP, or the CNV. Comparisons with previous studies are discussed.
    Keywords: BIOSCIENCES
    Type: Electroencephalography and Clinical Neurophysiology; 37; Oct. 197
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  • 67
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    Extreme ultraviolet spectra of highly ionized oxygen and fluorine (1974)
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    Publication Date: 2011-08-16
    Description: The foil-excitation method has been used to study the extreme ultraviolet spectra of highly ionized oxygen and fluorine. Several previously unreported lines in heliumlike fluorine are reported and other newly reported lines in heliumlike oxygen have been measured to higher accuracy. Included in the measurements are certain heliumlike oxygen transitions of significance in interpretation of solar-flare spectral observations. The wavelength determinations are usually in good agreement with calculated results which includes relativistic corrections, but discrepancies arise when nonrelativistic calculations are used. A comparison of the present results and those recently obtained by theta-pinch and laser-induced plasma sources is made for both heliumlike and lithiumlike ions; a few discrepancies occur, with results in most cases in better agreement with relativistically corrected calculations. Certain unidentified lines in the spectra may be attributable to radiative transitions between quartet states of lithiumlike ions.
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Physical Review A - General Physics; vol. 10
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  • 68
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    Intensity anomalies in the extreme VUV spectrum of Al/+3/ obtained in a laser-produced plasma (1974)
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    Publication Date: 2011-08-16
    Description: The results of experiments performed to check the possibility of stimulated emission in the extreme vacuum ultraviolet (VUV) by an Al(+3) laser-generated plasma are reported. It is concluded that the spectral line intensity anomalies previously observed are not due to population inversion.
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Applied Physics Letters; 25; July 1
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  • 69
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    Phase relationships between circadian rhythms and the environment in humans during hypokinesis (1974)
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    Publication Date: 2011-08-16
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  • 70
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    VUV dissociative excitation cross sections of H2O, NH3, and CH4 by electron impact (1974)
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    Publication Date: 2011-08-16
    Description: Absolute excitation functions for excited fragments resulting from electron bombardment of H2O, NH3, and CH4 by low-energy electrons (0 to 300 eV) have been measured in the vacuum ultraviolet (1100 to 1950 A). The predominant emission for each molecule was the H Lyman-alpha line, while the O I, N I, C I, and C II emissions were at least an order of magnitude weaker. Absolute cross sections at 100 eV are given along with the appearance potential of the various processes and the possible dissociative-excitation channels through which such processes proceed.
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Journal of Chemical Physics; 60; June 15
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  • 71
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    The action of ultrasounds on Bezostaia 1 winter wheat grown in sand pots treated with Knop solution (1974)
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    Publication Date: 2011-08-16
    Description: The results of 3 years of research are presented concerning the increase in length and weight of the aerial biomass as compared with the underground biomass, as well as the productivity indexes of Bezostaia 1 winter wheat. The experiment involved two varieties, each of them with nine repetitions. Sterile sifted sand treated several times with a Knop solution during the vegetative period was used as a seed bed. The seeds were kept in water for 2 hours before treatment. Biometric and statistical measurements showed significant responses in the treated varieties.
    Keywords: BIOSCIENCES
    Type: the 4th Natl. Conf. on Acoustics, Vol. 2, B (NASA-TT-F-15663); p 244-249
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  • 72
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    New experimental contributions to understanding the effect of ultrasonic irradiation on tomatoes (1974)
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    Details
    Publication Date: 2011-08-16
    Description: Irradiation of Aurora 100 tomatoes by a hydrodynamic ultrasonic generator with a frequency of 25 kHz per sec intensifies seed germination and the growth of the plants, causing precosity and increasing the output by 15.63 to 37.65%. The most effective radiation time (between 20 and 40 min) intensifies the phenophases. It causes some increase in output and changes in the chemical compositions of the fruits.
    Keywords: BIOSCIENCES
    Type: The 4th Natl. Conf. on Acoustics, Vol. 2, B (NASA-TT-F-15663); p 238-242
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  • 73
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    Absolute rotational Raman cross sections for N2, O2, and CO2 (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Optical Society of America; vol. 64
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  • 74
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    Echocardiography of the aortic valve. I - Studies of normal aortic valve, aortic stenosis, aortic regurgitation, and mixed aortic valve disease (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Keywords: BIOSCIENCES
    Type: British Heart Journal; 36; Apr. 197
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  • 75
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    Effect of bioisolation and the intestinal flora of mice upon evaluation of an Apollo diet (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Keywords: BIOSCIENCES
    Type: Aerospace Medicine; 45; May 1974
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  • 76
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    A relaxation theory of plasma-broadened He II lines (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: The relaxation theory of plasma line broadening developed by Smith and Hooper (1967) and extended by Smith (1968) is extended further to cover a case of a positively charged radiator. Differences in the theory, arising from its application to a charged radiator, are discussed in detail.
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Journal of Quantitative Spectroscopy and Radiative Transfer; 14; June 197
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  • 77
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    Excitation of metastable argon and helium atoms by electron impact (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Using a time-of-flight method, the excitation of argon and helium metastables by electron impact is investigated in the energy range from threshold to about 50 eV. The secondary-electron yields of the metastable detector used are reviewed in detail. The effect of metastable recoil is also discussed. Comparisons with data from other investigators are presented.
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Physical Review A - General Physics; vol. 9
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  • 78
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    Relaxation and frequency shifts in the ground state of Rb-85 (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Results are presented on the relaxation and frequency shifts measured for the 0-0 transition of the ground state of Rb-85 at 3.03 GHz in various physical environments. These results include data on spin-exchange, buffer-gas, and wall interactions.
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Physical Review A - General Physics; vol. 9
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  • 79
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    Effects of curvilinear motion in large-amplitude bending of C3 (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: The geometry of the bending of a linear triatomic molecule is analyzed, and an expression for the average rotational constant is derived. A harmonic oscillator model of C3 is fitted to the observed rotational constant within 0.6%. The bond distance between atoms at zero bending is 1.287 A according to this model; this is noticeably larger than the average internuclear distance of 1.277 A for the vibrational ground state. The first order perturbation solutions for the vibrational energy levels, taking into account the effect of a quartic perturbation potential, closely match observed levels. For a square well potential model of C3, the effect of curvilinear motion in bending is similar to that found for the harmonic oscillator model, though the decreases in energy are about twice as large. In both models, the average energy decrease is relatively constant at approximately 10% over a wide range of vibrational quantum number.
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Journal of Chemical Physics; 60; Feb. 1
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  • 80
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    Argon charge states due to impact of H+ and He+ ions (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Charge states of argon produced by bombardment with 100-keV to 1-MeV H+ and He+ projectiles were studied by examining high-resolution L-shell X-ray satellite spectra. Large differences appear in charge-state populations determined from X-ray data and Auger-electron data.-
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Physical Review Letters; 32; Mar. 18
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  • 81
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    Three-body Coulomb systems using generalized angular-momentum S states (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: An expansion of the three-body Coulomb potential in generalized angular-momentum eigenfunctions developed earlier by one of the authors is used to compute energy eigenvalues and eigenfunctions of bound S states of three-body Coulomb systems. The results for He, H(-), e(-)e(+)e(-), and pmu(-)p are compared with the results of other computational approaches.
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Physical Review A - General Physics; vol. 9
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  • 82
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    Free-free absorption of infrared radiation in collisions of electrons with neutral rare-gas atoms (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: A relationship between the inverse bremsstrahlung absorption cross section and the electron neutral momentum transfer cross section has been utilized to determine the infrared free-free continuum absorption coefficient for the negative ions of helium, neon, argon, krypton, and xenon. The values of the momentum transfer cross section for this calculation have been obtained from experimental measurements. Analytical expressions for the absorption coefficient have also been developed. From the results of this calculation, it is possible to determine the absorption coefficient per unit electron density per neutral atom for temperatures in the range from 2500 to 25,000 K. The results are compared with those from tabulations of previous calculations and those computed from theoretical values of the phase shifts for the elastic scattering of electrons by neutral atoms.
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Astronomy and Astrophysics; 30; 2, Ja; Jan. 197
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  • 83
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    Absorption coefficients for hydrogen. III - Calculated pressure-induced H2-H vibrational absorption in the fundamental region (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Journal of Quantitative Spectroscopy and Radiative Transfer; 14; Feb. 197
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  • 84
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    Theory of pressure-induced vibrational and rotational absorption of diatomic molecules colliding with atoms at high temperatures (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Journal of Quantitative Spectroscopy and Radiative Transfer; 14; Jan. 197
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  • 85
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    Angiotensinase activity of dipeptidyl aminopeptidase I /cathepsin C/ of rat liver (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Keywords: BIOSCIENCES
    Type: Journal of Biological Chemistry; 249; Jan. 10
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  • 86
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    Measurement of the relative cross sections for simultaneous ionization and excitation of the He/+/ n = 4 levels (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Physical Review A - General Physics; vol. 9
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  • 87
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    Projectile charge-state dependence of K X-ray production by 1-4-MeV/amu heavy ions in gases (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Physical Review A - General Physics; vol. 9
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  • 88
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    Role of gravity in preparative electrophoresis (1974)
    In:  Other Sources
    Details
    Publication Date: 2019-01-25
    Description: Electrophoresis has contributed significantly to the methodology of biological sciences, and shows the potential for large scale fractionation of a wide range of medically important substances, including living cells. Gravity plays an important role in the electrophoretic process, and hence the importance of the NASA effort to develop a zero-gravity separation facility as part of its shuttle program. The current state of art in electrophoresis is reviewed with particular emphasis on the role of gravity and the possible use of istachophoresis. This technique utilizes a discontinuous buffer system, and appears to be the only high resolution electrophoretic technique currently available for separation of living cells.
    Keywords: BIOSCIENCES
    Type: Proc. of the 3d Space Processing Symp. on Skylab Results, Vol. 2; p 729-253
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  • 89
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    Radiative transitions involving the (2p2)(3 Pe) metastable autodetaching of H(-) (1974)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The absorption coefficient for the free-bound transition H (ls) + e(-)+ h omega yields H(-)(2 sq p,(3)P(e)) is calculated (together with the differential emission rate for the inverse process) using ls - 2s - 2p close coupling continuum wave functions and a Hylleraas bound state wave function. A maximum in the absorption and emission spectra is found to occur at a photon wavelength of 1219.5 A, which is 2 A closer to the Lyman alpha line than predicted by the calculations of Drake, and is in closer agreement with the stellar absorption feature identified by Heap and Stecher. The free-bound absorption process appears to be a significant source of continuous ultraviolet opacity.
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: NASA-TM-X-70570 , X-602-74-13
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  • 90
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    Method of laminating structural members (1974)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: A laminate is obtained by providing a lightweight core material, such as a honeycombed plastic or metal, within the cavity defined by an annular mold cavity frame. Face sheets, which are to be bonded to the core material, are provided on opposite sides of the frame and extend over the frame, thus sealing the core material in the cavity. An adhesive is provided between the core material and the face sheets and the combined thickness of the core material and adhesive is a close fit within the opposed face sheets. A gas tight seal, such as an O-ring gasket, is provided between the frame and the face sheet members to form a gas tight cavity between the face sheet members and the frame. External heat and pressure are used to bond the face sheets to the core material. Gas pressure is introduced into the sealed cavity to minimize out-gasing of the adhesive.
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
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  • 91
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    Quantitative values of blood flow through the human forearm, hand, and finger as functions of temperature (1974)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: A literature search was made to obtain values of human forearm, hand and finger blood flow as functions of environmental temperature. The sources used include both government and laboratory reports and the research presented in the open literature. An attempt was made to review many of the more quantitative noninvasive determinations and to collate the results in such a way as to yield blood flow values for each body segment as continuous functions of temperature. A brief review of the various ways used to measure blood flow is included along with an abstract of each work from which data was taken.
    Keywords: BIOSCIENCES
    Type: NASA-TM-X-62342
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  • 92
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    Circadian, endocrine, and metabolic effects of prolonged bedrest: Two 56-day bedrest studies (1974)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Two bedrest studies of 56 days each have been conducted to evaluate the effects of prolonged bedrest on circadian synchrony and endocrine and metabolic function. Measurements included the pituitary-adrenal, thyroid, parathyroid, insulin-glucose-growth hormones, catecholamine excretion, body temperature, and heart rate. The results indicated that a rigorous regimen of exercise did not prevent the endocrine and metabolic effects of prolonged bedrest. Changes in circadian, endocrine, and metabolic functions in bedrest appear to be due to changes in hydrostatic pressure and lack of postural cues rather than to inactivity, confinement, or the bleeding schedule. Prolonged bedrest, particularly beyond 24 days, resulted in rhythm desynchronization in spite of well regulated light/dark cycles, temperature, humidity, activity, and meal times and meal composition and in increased lability of all endocrine parameter measured. It also resulted in an apparent insensitivity of the glucose response to insulin, of cortisol secretion to ACTH, and of growth hormone secretion to hypoglycemia.
    Keywords: BIOSCIENCES
    Type: NASA-TM-X-3051 , A-5339
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  • 93
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    Enzyme activity in terrestrial soil in relation to exploration of the Martian surface (1974)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Sensitive tests for the detection of extracellular enzyme activity in Martian soil was investigated using simulated Martian soil. Enzyme action at solid-liquid water interfaces and at low humidity were studied, and a kinetic scheme was devised and tested based on the growth of microorganisms and the oxidation of ammonium nitrite.
    Keywords: BIOSCIENCES
    Type: NASA-CR-138587
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  • 94
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    Photoelectron angular distributions as a probe of anisotropic electron-ion interactions (1974)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Expressions are given for atomic photoelectron angular distributions in LS coupling in which the role of anisotropic final state electron-ion interactions emerges explicitly. Calculations of photoelectron angular distributions for atomic sulfur are presented in which these anisotropic interactions produce pronounced deviations from the predictions of the Cooper-Zare model. Such effects are expected to be a general feature of photoelectron angular distributions for most open shell atoms.
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: NASA-CR-137076
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  • 95
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    Bone mineral measurement from Apollo experiment M-078 (1974)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Loss of mineral from bone during periods of immobilization, recumbency, or weightlessness is examined. This report describes the instrumentation, technique, and bone mineral changes observed preflight and postflight for the Apollo 14, 15, and 16 missions. The bone mineral changes documented during the Apollo Program are reviewed, and their relevance to future missions is discussed.
    Keywords: BIOSCIENCES
    Type: NASA-TM-X-58110 , JSC-08680
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  • 96
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    Nonstationary homogeneous nucleation (1974)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The theory of homogeneous condensation is reviewed and equations describing this process are presented. Numerical computer solutions to transient problems in nucleation (relaxation to steady state) are presented and compared to a prior computation.
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: NASA-CR-136830 , JPL-TM-33-666
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  • 97
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    Test results on the Viking gas chromatograph-mass spectrometer experiment (1974)
    In:  Other Sources
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    Publication Date: 2019-06-27
    Description: The gas chromatograph-mass spectrometer instrument to be utilized in the Viking 1975 Molecular Analysis experiment has undergone preliminary testing in its flight configured version. A synthetic mixture of 24 components as well as a sample of the Murchison meteorite has been used for this purpose. The resulting data not only allowed the identification of most of the organic compounds known to be present, but also revealed the identity of a few unexpected ones. Thus, the sensitivity and reliability of the instrument and data system are satisfactorily demonstrated.
    Keywords: BIOSCIENCES
    Type: Origin of Life; 5; July-Oct
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  • 98
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    Intrathoracic and venous pressure relationships during responses to changes in body position (1974)
    In:  Other Sources
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    Publication Date: 2019-06-27
    Description: Simultaneous end-expiratory pressures, referred to midthoracic level, in the superior and abdominal venae cavae, pericardial space, and right and left heart, were recorded without thoracotomy in three anesthetized dogs during sudden changes from supine to vertical head-up or head-down body positions. Intrathoracic and dependent great vein pressures referred to midchest level (sixth thoracic vertebra) decreased and showed simple hydrostatic gradients in either vertical position. However, a discontinuity in the large vein hydrostatic gradient occurred just distal to the superior margin of the thorax in either body position and was resumed again above this level. It is concluded that, just as the cerebrospinal fluid and intraperitoneal pressures minimize the effects of gravitational and inertial forces on the cerebral and visceral circulations, the pericardial and pleural pressures have a similar role for the heart proper.
    Keywords: BIOSCIENCES
    Type: Journal of Applied Physiology; 37; Aug. 197
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  • 99
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    Measurement of integrated intensities of acetylene bands at 3.04, 7.53 and 13.7 microns (1974)
    In:  Other Sources
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    Publication Date: 2019-06-27
    Description: Integrated intensities of acetylene bands at 3.04, 7.53, and 13.7 microns measured at 300 K at a spectral resolution of 0.6 slit widths per cm, using the technique described by Penner (1959), are presented. Comparisons with other published measurements suggest that the presented intensity values are reasonably well determined.
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Journal of Quantitative Spectroscopy and Radiative Transfer; 14; Sept
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  • 100
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    Collision-broadened line widths of tetrahedral molecules. I - Theoretical formulation (1974)
    In:  Other Sources
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    Publication Date: 2019-06-27
    Keywords: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
    Type: Journal of Quantitative Spectroscopy and Radiative Transfer; 14; Oct. 197
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