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  • Cell & Developmental Biology  (125)
  • LUNAR AND PLANETARY EXPLORATION
  • 1935-1939  (126)
  • 1938  (126)
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  • 1935-1939  (126)
Year
  • 1
    Electronic Resource
    Electronic Resource
    The degradation of energy in the metabolism of yeast cells (1938)
    Philadelphia : Wiley-Blackwell
    Journal of Cellular and Comparative Physiology 12 (1938), S. 183-211 
    Details
    ISSN: 0095-9898
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Additional Material: 12 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcp.1030120205
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  • 2
    Electronic Resource
    Electronic Resource
    Respiratory inhibition by carbon dioxide stimulation in the lungs of young ducks (1938)
    Philadelphia : Wiley-Blackwell
    Journal of Cellular and Comparative Physiology 11 (1938), S. 325-331 
    Details
    ISSN: 0095-9898
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcp.1030110216
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  • 3
    Electronic Resource
    Electronic Resource
    Electrical potential differences across the wall of kidney tubules of Necturus (1938)
    Philadelphia : Wiley-Blackwell
    Journal of Cellular and Comparative Physiology 11 (1938), S. 425-431 
    Details
    ISSN: 0095-9898
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcp.1030110308
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  • 4
    Electronic Resource
    Electronic Resource
    The aortic diverticula of the Odonata (1938)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 63 (1938), S. 229-261 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Although thoracic diverticula of the aorta ending dorsally in pulsatile organs were discovered by Brocher as early as 1917 no detailed account of their structure was published. The condition of these structures in the adult was not investigated and their development through larval instars was not followed. Brocher's later papers announced the discovery of similar organs in the orders Orthoptera, Coleoptera and Lepidoptera. In 1931 E. Meyer described in some detail pulsatile organs in the Ephemerida. In general these accounts are either superficial or of doubtful interpretation.The present paper deals with the Odonata and stresses the Anisoptera. Anax junius has been studied as the type both anatomically and histologically in all stages of larva and imago except the first four instars. Other types have been compared with Anax, and some of the other orders mentioned have been checked for presence and nature of these organs.Aortic diverticula and pulsatile organs occur in all Odonata both larval and adult. These are derived from the same origins and their histology is that of the membranes involved in aortic and body walls. Through inference from morphology and from physiological examination it appears that pulsatile organs (1) supplement heart action, perhaps substituting for it during emergence. (2) assist in the functioning of the ostia and ostial glands, and (3) may even be important in production and distribution of hormones.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1050630204
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  • 5
    Electronic Resource
    Electronic Resource
    The segmental excretory glands of Artemia salina linn., var. principalis simon. (the brine shrimp) (1938)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 62 (1938), S. 263-297 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Artemia salina, a very widely distributed species in North America, Europe and Asia, breeds freely and rapidly under laboratory conditions, living in all salinities from fresh water to almost saturated brine. Its soft exoskeleton permits of easy sectioning.The morphology and embryology of the segmentally arranged excretory glands - the antennal, mandibular and maxillary glands, are described. The antennal gland, consisting of extracellular end sac and intracellular excretory duct, is located in the second antenna and opens to the exterior on the lateroposterior face of the protopodite. It attains its maximum development by the sixth instar, degenerating by the tenth. The vestigial mandibular gland consists only of an end sac surrounding a schizocoele, and a rudimentary duct. The large maxillary gland in the adult consists of an end sac, an excretory duct of three circular coils, and a terminal duct opening to the exterior. The maxillary gland develops from a mass of mesenchyme cells in the maxillary segment of the nauplius, becoming fully differentiated by the sixth instar.The vestigial second maxilla has two bristles. It serves only as a terminus for the maxillary gland. A pair of small ganglia are accepted as internal evidence for the presence of a maxillular segment.The presence of three pair of schizocoeles in three consecutive segments is interpreted as evidence of homology with the Annelid coelome, with the possibility of further homologizing the excretory ducts with the segmental nephridia.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1050620206
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  • 6
    Electronic Resource
    Electronic Resource
    Response of the oyster heart to electrical stimulation, and effect of calcium and potassium on its threshold of inhibitionI wish to express my appreciation to Dr. S. O. Mast for help in preparing this paper for publication, and to the Biological Laboratory, Cold Spring Harbor, Long Island, N. Y., where part of this work was carried out, for providing laboratory facilities. (1938)
    Philadelphia : Wiley-Blackwell
    Journal of Cellular and Comparative Physiology 12 (1938), S. 237-246 
    Details
    ISSN: 0095-9898
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcp.1030120208
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  • 7
    Electronic Resource
    Electronic Resource
    Adaptations for viviparity in embryos and ovary of Anableps Anableps (1938)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 62 (1938), S. 323-349 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: In the Anablepidae, a family of viviparous Cyprinodont fishes, the mature eggs are fertilized in the ovarian follicles. The embryos are retained in the modified ovarian follicles until birth and are born when about 44 mm. in length. The embryos develop expanded yolk sacs which reach a maximal diameter of about 10. mm. The vitelline veins on the surface of the yolk sac develop rows of bead-like swellings, yolk sac bulbs, which serve to facilitate absorption of materials from the fluid of the follicle cavity. There is an extensive system of follicular villi upon the internal lining of the follicular capsule, the apparent function of which is to increase the vascular surface of the internal lining of the follicular capsule and to facilitate the interchange of materials between the blood of parent and fluid of the follicular cavity. The follicular villi and the yolk sac bulbs develop at the same time. These two adaptations for viviparity are apparently unique in this family of fishes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1050620208
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  • 8
    Electronic Resource
    Electronic Resource
    Histological and cytological changes in the ovary of Cymatogaster aggregatus during gestationThis investigation was supported by a grant-in-aid from Northwestern University. Part of the collecting was done at the Oceanographic Laboratory of the University of Washington at Friday Harbor and the writer is indebted to the staff of the laboratory for many courtesies. (1938)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 62 (1938), S. 351-373 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Viviparity in the teleost fishes is most highly developed in the family Embiotocidae. In Cymatogaster aggregatus, a member of this family, the males are sexually mature at birth. Females born in June and July are inseminated soon after birth and carry the spermatozoa in the ovarian cavity until December when eggs are fertilized. Embryos are retained in the ovarian cavity till the following spring when they are born.The cells of the epithelium lining the ovarian cavity develop internal fluid reservoirs which reach their maximal stage in early gestation when there is an extensive sloughing of epithelial cells. The epithelium returns to its original condition in late gestation and later the cells undergo multiplication. The stroma becomes swollen and contains a large amount of fluid during early gestation and shrinks as the embryos become larger. Many of the eggs, failing to reach maturity at the time of fertilization, degenerate. Degeneration also takes place in numerous smaller ovocytes during gestation but some of them survive to grow during the next season.The cyclical changes in the ovarian tissue of Cymatogaster aggregatus are parallel to those which occur in the ovaries of the Goodeidae and the Jenynsiidae, two other families in which viviparity has been highly developed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1050620209
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  • 9
    Electronic Resource
    Electronic Resource
    The absorption of colloidal carbon from the body cavity of Ammocoetes. A study of the structure and function of the larval kidneys and blood forming tissuesContribution no. 249 from the zoological laboratories, indiana university. (1938)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 63 (1938), S. 163-179 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Colloidal carbon injected into the coelom of the larval lamprey, Ammocoetes, is taken up directly by the pronephric tubules. Due to the absence of nephrostomes the mesonephric tubules do not function in a similar way. The tubules of neither show any intracellular deposition of carbon. The reticular elements which support both these kidneys exhibit pronounced phagocytic and hemocytopoietic activity. Carbon in either a free or included form reaches all the other organs both as a result of direct invasion or secondary distribution by the vascular system. The liver is the only organ whose vascular endothelium exhibits cytopoietic properties. To the diffuse spleen as a site of blood cell formation thus should be added the reticular tissue of the pronephros and mesonephros and the vascular endothelium of the liver. Playing a minor role in a similar way are the intestinal mucosa exclusive of that in the typhlosole and the spongy tissue dorsal to the neural tube.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1050630108
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  • 10
    Electronic Resource
    Electronic Resource
    The histogenesis of muscle in the regenerating fore limb of larval Amblystoma punctatumThesis presented to the faculty of Princeton University in partial fulfillment of the requirements for the degree of doctor of philosophy. (1938)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 62 (1938), S. 17-47 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The regeneration of muscle in larval Amblystoma punctatum is preceded by an extensive dedifferentiation of the old muscles of the limb stump. The process of muscle dedifferentiation consists in a separation of muscle nuclei, surrounded by a small amount of cytoplasm, from the injured ends of the muscle fibers. The dedifferentiation of the cut muscles of the limb stump progresses proximad as far as the origin of the muscles on the humerus and results in a complete transformation of these muscles into undifferentiated cells which appear to contribute to the formation of the regeneration blastema. Shoulder muscles, which were attached to the humerus, also undergo a partial dedifferentiation when their points of insertion on the humerus are destroyed by the degeneration of the perichondrium. These muscles never dedifferentiate, however, for more than one-fourth their original length. The process of dedifferentiation in the shoulder muscles is similar to that found in the cut muscles of the limb stump.The regeneration of the injured muscles occurs in two ways. The shoulder muscles reconstitute themselves by means of terminal and lateral sarcoplasmic buds formed near the distal regions of the muscle fibers. The muscles of the limb proper, distal to the shoulder, differentiate out of local aggregations of blastema cells. No myoblasts were observed.The regeneration blastema arose chiefly from dedifferentiated cells of muscle, nerve connective tissue sheath, perichondrium and cartilage.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1050620104
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