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  • Life and Medical Sciences
  • METEOROLOGY AND CLIMATOLOGY
  • 1980-1984
  • 1970-1974  (22)
  • 1960-1964  (5)
  • 1940-1944
  • 1973  (22)
  • 1960  (5)
Collection
Keywords
Publisher
Years
  • 1980-1984
  • 1970-1974  (22)
  • 1960-1964  (5)
  • 1940-1944
Year
  • 1
    Electronic Resource
    Electronic Resource
    Gross and microscopic morphology of the Glandula proctodealis (foam gland) of Coturnix c. japonica (Aves)Michigan Agricultural Experiment Station Journal Article 5948. (1973)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 141 (1973), S. 171-184 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The dorsal proctodeal wall of the Coturnix contains a gland which is especially well-developed in the sexually active male and which secretes a foamy exudate. This gland has not been recorded in any other genus of birds and appears to be unique to members of the genus Coturnix. On the basis of its location in the adult we have named this gland the proctodeal gland (glandula proctodealis). Structure of the gland does not conform to any curently defined category of glands because it is an aggregate of individual glandular units each of which opens independently into the proctodeal cavity but with the entire structure enclosed by a connective tissue capsule. We have thus characterized it as an aggregate gland. Observations on the arrangement and composition of the fibrous capsule and its intimate relationship to the perimysium of M. sphincter cloacae indicate that release of the secretion probably results from contraction of the cloacal musculature. Preliminary data suggest that development of glandular tissue in the female may be a function of age rather than of androgen sensitivity which characterizes the male gland. It is concluded that the chemical nature of the glandular secretion and its function in the sexually active bird, as based on presently available information, remains unknown.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1051410205
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  • 2
    Electronic Resource
    Electronic Resource
    Stereotaxic map of the muscle fibers in the indirect flight muscles of Drosophila melanogaster (1973)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 140 (1973), S. 153-158 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: It is possible to monitor the electrical activity of the motor neurons of Drosophila by recording the electrical activity of the muscle fibers. We have found that it is possible to specify the location of the subcuticular terminations and to describe the orientation within the thorax for the individual muscle fibers, because of the large size of the fibers and because the surface anatomy of Drosophila is known in detail. A map has been made to indicate the location of the muscle fibers with respect to superficial landmarks. The importance of the stereotaxic map for physiological studies is discussed.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1051400203
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  • 3
    Electronic Resource
    Electronic Resource
    The postembryonic developmental instars of Diaptomus siciloides LilljeborgThis study was supported by National Science Foundation grant 1257, and the North Dakota Institute for Regional Studies. This is contribution number 10, Journal Series of the North Dakota Institute for Regional Studies. (1960)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 107 (1960), S. 297-355 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Additional Material: 14 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1051070305
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  • 4
    Electronic Resource
    Electronic Resource
    Evidence for similar biochemical requirements for bioluminescence among the coelenterates (1973)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 81 (1973), S. 291-297 
    Details
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: We present evidence that the chemical requirements among all the bioluminescent coelenterates that have been examined are very similar or identical to those already described for Renilla by Cormier and associates. Components required for luminescence in Renilla were also found in a number of bioluminescent coelenterates examined such as Aequorea, Obelia, Cavernularia, Ptilosarcus, Stylatula, Acanthoptilum, Parazoanthus and Mnemiopsis. Depending on the organism these include one or more of the following: luciferyl sulfate, luciferase, and luciferin sulfokinase. These isolated components were found to be indistinguishable from those found in Renilla as evidenced by their reactivity in the Renilla bioluminescent system, by the spectral characteristics of the isolated luciferyl sulfates, by the molecular weights of the luciferases, and by the colors of the bioluminescence produced in vitro.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcp.1040810218
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  • 5
    Electronic Resource
    Electronic Resource
    A Calcium-sensitive lanthanum inhibition of amoeboid movement (1973)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 81 (1973), S. 365-369 
    Details
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The effects of lanthanum ions upon amoeboid movement and upon the redistribution of dense cytoplasmic inclusions following centrifugation were investigated in Amoeba discoides. Treatment with low lanthanum concentrations produced a characteristic inhibited condition in which locomotion ceased while saltatory movements continued. The resorting of stratified cytoplasm by local internal cytoplasmic flow was unaffected. This contrasted with p-hydroxymercuribenzoate treatment which inhibited both locomotion and saltatory movements. The inhibitory effects of lanthanum ions were antagonised by calcium ions but not by magnesium ions. It is reasoned that lanthanum competes for a peripheral binding site thereby disrupting a calcium-mediated regulatory mechanism of amoeboid movement.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcp.1040810309
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  • 6
    Electronic Resource
    Electronic Resource
    Isolation of temperature sensitive mammalian cells by selective detachment (1973)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 82 (1973), S. 325-331 
    Details
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Temperature sensitive cells have been isclated from Syrian and Chinese hamster cells using a method based on selective detachment from a glass substrate. The Syrian hamster isolates occurred at a high frequency (about 1 in 103) and reverted rapidly; polyoma virus transformation conferred on cells the ability to grow, perhaps abnormally, in agar suspension. A slightly modified isolation technique was applied to Chinese hamster cultures and resulted in the isolation of at least one mutant (from a starting population of 5 × 108 cells) with a spontaneous reversion rate of less than one in 6 × 107. Treatment of the mutant with ethyl methane sulphonate induced reversion. It was concluded that selective detachment provided a useful method for the isolation of conditional lethal mutants of mammalian cells.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcp.1040820302
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  • 7
    Electronic Resource
    Electronic Resource
    Does hyaluronidase initiate DNA synthesis? (1973)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 82 (1973), S. 511-512 
    Details
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcp.1040820319
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  • 8
    Electronic Resource
    Electronic Resource
    A low molecular weight factor in lung-conditioned medium stimulating granulocyte and monocyte colony formation in vitroThis work was supported by grants from the Carden Fellowship Fund of the Anti-Cancer Council of Victoria and the National Health and Medical Research Council, Canberra. (1973)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 81 (1973), S. 11-23 
    Details
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Medium conditioned by excised whole lungs from endotoxin-injected C57BL mice was highly active in stimulating hemopoietic colony formation, particularly of granulocytic type, in agar cultures of mouse bone marrow cells. The colony stimulating factor (CSF) in this material had an α1-α2 electrophoretic mobility, was eluted from calcium phosphate gel by 0.04 M phosphate buffer and had an unusually low apparent S20W of 1.9. Sequestered polymor-phonuclear neutrophils were excluded as a major source of this CSF. The high specific activity and ease of preparation of lung conditioned medium make it valuable both for the large scale production of CSF and as a source of an unusual type of CSF.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcp.1040810103
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  • 9
    Electronic Resource
    Electronic Resource
    Serum dependent growth of primary cultured differentiated fetal rat hepatocytes in arginine-deficient medium (1973)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 81 (1973), S. 113-123 
    Details
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Fetal rat hepatocytes in primary monolayer cultures multiply in arginine-deficient medium. Both the “recovery efficiency” and the final cell density of the cultured cells are proportional to the concentration (0-15%, v/v) of dialyzed fetal bovine serum in the medium. Stationary-phase cells divide again following addition of fresh serum to the culture. After two to three generations of growth, the chromosome number of these cells remains diploid [2N = 42].Cross-feeding (of a subpopulation of arginine-requiring liver-derived cells by parenchymal arginine-synthesizing cells) and cellular degradation of various serum proteins do not account for sources of arginine required for cell multiplication in this culture system. Because these cultured hepatocytes utilize ornithine for arginine biosynthesis, and because ornithine enhances the rate and the amount of cell multiplication, it is more likely that the multiplying cells are parenchymal arginine-synthesizing hepatocytes.At least two classes of serum factors are required for the growth of cultured fetal rat hepatocytes: one stimulates cell multiplication; the other is required for cellular survival and/or attachment to the culture dish. These factors have been partially separated by fractionation with ammonium sulfate; they are non-dialyzable, heat labile, and sensitive to changes in pH.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcp.1040810114
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  • 10
    Electronic Resource
    Electronic Resource
    Automatic monitoring of suspension cultures (1973)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 81 (1973), S. 285-290 
    Details
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: An apparatus is described for the continuous monitoring of the growth of suspension cultures of mammalian cells in normal conditions and following the administration of a drug.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcp.1040810217
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