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  • ASTROPHYSICS  (41)
  • Humans
  • Lunar and Planetary Science and Exploration
  • Life and Medical Sciences
  • 1970-1974  (61)
  • 1974  (61)
Collection
Keywords
Publisher
Years
  • 1970-1974  (61)
Year
  • 1
    Electronic Resource
    Electronic Resource
    Glycolytic enzyme activity in developing red and white muscle (1974)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 83 (1974), S. 251-257 
    Details
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The activities of the constant proportion enzymes of the Embden-Meyerhof chain (triose phosphate isomerase (TIM), glyceraldehyde-3-phosphate dehydrogenase (GAPDH), phosphoglycerate kinase (PGK), phosphoglycerate mutase (PGM) and enolase (ENOL)), and the activity of lactic dehydrogenase (LDH) were studied in developing red (trapezius) and white (longissimus) muscles of the pig from a fetal stage to 24 weeks postnatal. Both muscles were differentiated by two weeks postnatal in the sense that they had reached the adult level of enzyme activity. Enzyme activities were two- to three-fold greater in the longissimus than in the trapezius. Enzyme activity ratios based on GAPDH were not consistent in the fetal and day 1 samples but were consistent during later stages of growth. Ratios of enzyme activity based on activity at 105 days gestation revealed that TIM, PGK and PGM are grouped and follow the same pattern, but GAPDH and ENOL are quite different from each other and from the pattern shown by TIM, PGK and PGM. The constant proportion concept in developing muscle is therefore questioned.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcp.1040830211
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Cell cycle dependent modulations of the surface membrane of normal and SV40 virus transformed 3T3 cells (1974)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 84 (1974), S. 343-348 
    Details
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Agglutinability with Concanavalin was studied as function of cell cycle transition in normal and SV40 virus transformed 3T3 cells. In synchronized cultures of normal cells, agglutinbility was high during mitosis and disappeared rapidly. Agglutinability of transformed cells remained high in G1 phase but diminished gradually upon entering S phase and reached minimum in G1 phase. Decreased agglutinability a the end of the cell cycle was also observed in synchronous SV3T3 cultures by a combined technique of haemadsorption and density gradient centrifugation. In normal 3T3 cells, similar variations in agglutin ability during interphase could not be observed.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcp.1040840303
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    Paper (German National Licenses)
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  • 3
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    An investigation of the cosmic radiation in the vicinity of the moon on the Luna 10, 11, and 12 artificial lunar satellites (1974)
    In:  CASI
    Details
    Publication Date: 2006-01-11
    Description: Research on the primary cosmic radiation and solar cosmic rays from the Luna 10, 11, and 12 artificial lunar satellites is reviewed. Data on the vertical distribution of cosmic rays above the moon's surface are presented, and the albedo for the primary radiation is determined. The fluxes of electrons with energies from 30 to 300 keV were registered in the solar cosmic rays. Rapid variations of the electron flux were observed. The angular distributions of 0.5-10 MeV protons moving together with the corpuscular streams responsible for Forbush decreases were investigated.
    Keywords: ASTROPHYSICS
    Type: Interplanet. Medium and Phys. of the Magnetosphere (NASA-TT-F-784); p 151-173
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    Estimates of the Venus atmosphere optical characteristics with application to the problem of photographing its clouds and surface (1974)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Optical parameters investigated and solved for included: (1) cloud layer albedo and cloud cover optical thickness; (2) planetary surface self-radiation influence; (3) light flux distribution as function of atmospheric height; (4) upper estimate of the observed contrasts; (5) surface optical parameters; and (6) contrast decrease with altitude.
    Keywords: ASTROPHYSICS
    Type: Space Iconics (NASA-TT-F-798); p 121-135
    Format: text
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    NASA TECHNICAL REPORTS
  • 5
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    Applicability of the diffusion approximation (1974)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Several methods using an approximate form of the scattering indicatrix are discussed for simplifying the calculation of radiation transport in planetary atmospheres.
    Keywords: ASTROPHYSICS
    Type: Space Iconics (NASA-TT-F-798); p 75-84
    Format: text
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    NASA TECHNICAL REPORTS
  • 6
    Electronic Resource
    Electronic Resource
    Postembryonic development of the cervicothoracic muscles of Euborellia annulipes (Lucas) (Dermaptera: Labiduridae)Based on a dissertation submitted by the senior author in partial fulfillment of the requirements for the doctoral degree at the University of Illinois. (1974)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 143 (1974), S. 457-473 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The cervicothoracic muscles of nymphal and adult Euborellia annulipes (Lucas) are described, the former for the first time. In the adult, eight new muscles are identified, while the nymphs possess a further seven muscles that disappear at maturation or before. Otherwise the same muscles occur in nymphs as in adults, though some nymphal muscles are less clearly separated from one another than their adult homologs. The attachment sites of certain muscles show a number of slight differences between nymphs and adults. The work emphasizes the necessity of taking the immature musculature into account in assessing the muscular pattern represented in an insect order.
    Additional Material: 12 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1051430408
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  • 7
    Electronic Resource
    Electronic Resource
    Special cutaneous receptor organs of fish. VII. Ampullary organs of mormyrids (1974)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 143 (1974), S. 365-383 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Ampullary receptor organs of African mormyrids consist of a cavity beneath the epidermis. The wall of the cavity contains embedded receptor cells and two types of supporting cells. A canal extends from the cavity to an opening at the surface. The lumen of the canal and the ampulla are filled with a jelly-like material and dense cylinders apparently secreted by two types of supporting cells. Flattened cells of the canal wall are joined by occluding junctions. Synapses between receptor cells and the afferent nerve fiber are characterized by a presynaptic dense body, but presynaptic vesicles were not observed. Degenerating receptor cells are occasionally seen among normal receptor cells in the base of the organ.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1051430402
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  • 8
    Electronic Resource
    Electronic Resource
    Survival of skin allografts following embryonic limb bud transplants in the turtle, Chelydra serpentina (1974)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 144 (1974), S. 463-468 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Allografts of skin were observed in Chelydra serpentina. The response to these grafts was modified by a previous transplantation of a limb bud at an early embryonic stage. When the same donor was used for all transplants, the first skin graft was accepted by the host. A second skin graft, however, was rejected at about the rate of a simple first set allograft of skin. The animals were conditioned by the embryonic limb graft; this embryonic graft can be undergoing rejection at the same time a first set skin graft from the same donor was being accepted. The tolerance induced by the embryonic graft was sepcific for its donor.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1051440407
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  • 9
    Electronic Resource
    Electronic Resource
    Postembryonic development of the cervicothoracic skeleton of Euborellia annulipes (Lucas) (Dermaptera: Labiduridae)Based on a dissertation submitted by the senior author in partial fulfillment of the requirements for the doctoral degree at the University of Illinois. (1974)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 144 (1974), S. 255-268 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The nymphal and adult cervicothoracic skeleton of Euborellia annulipes (Lucas) is described and discussed.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1051440302
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  • 10
    Electronic Resource
    Electronic Resource
    Incidence and progress of rejection of embryonic limb bud transplants in the turtle, Chelydra serpentina (1974)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 144 (1974), S. 453-461 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Allografts of embryonic limb buds were grafted orthotopically on embryos of Chelydra serpentina. Donors were from a different geographic area, the same geographic area, or siblings. The initial indication of rejection was excessive sloughing of epidermis. This was followed by loss of muscle, claws and bone.Early histological changes involved an infiltration of mononuclear or rejection cells primarily associated with small blood vessels of the connective tissue. Subsequently, muscle and bone were lost and they were replaced by connective tissue. Epidermis and nerves persisted. The skeletal cartilages were isolated from immunological activity.Although the incidence of rejection was essentially the same in sibling and non-sibling combinations, the initial external signs of rejection occurred earliest when donor and host were from different geographic areas but not later than two years after hatching. The first signs of rejection in sibling allografts occurred not later than three years after hatching. Animals that survived these periods without rejection did not show subsequent rejection.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1051440406
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