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Sunday, May 10, 2020 | History

2 edition of Determination and regulation of polarity in the retina of Hyla regilla. found in the catalog.

Determination and regulation of polarity in the retina of Hyla regilla.

Richard Marshall Eakin

Determination and regulation of polarity in the retina of Hyla regilla.

by Richard Marshall Eakin

  • 145 Want to read
  • 27 Currently reading

Published by Univ. of California Press in Berkeley .
Written in English

    Subjects:
  • Polarity (Biology).,
  • Retina.

  • Edition Notes

    StatementBy Richard M. Eakin.
    SeriesUniversity of California publications in zoology,, v. 51, no. 10
    Classifications
    LC ClassificationsQL1 .C15 vol. 51, no. 10
    The Physical Object
    Pagination245-287 p.
    Number of Pages287
    ID Numbers
    Open LibraryOL192219M
    LC Control Numbera 48000004
    OCLC/WorldCa2998163

    Basic HPLC Theory and Definitions: Retention, Thermodynamics, Selectivity, Zone Spreading, Kinetics, and Resolution Torgny Fornstedt, Patrik Forssén, and Douglas Westerlund Liquid chromatography is a very important separation method used in practi-cally all chemistry fields. For many decades, it has played a key role in academicFile Size: 1MB. Full text of "Survey on neurobiology. Bibliography of genetic neurology" See other formats.

    electroretinogram testing were retrospectively reviewed. Microperimetry was considered positive if there were three or more contiguous scotoma points in the parafoveal region. Multifocal electroretinogram was used as gold standard and was considered positive if there was an increased R1/R2 ring ratio (>) or reduced R1 absolute amplitude . RETINA provides current information on diagnostic and therapeutic techniques in vitreoretinal disorders. Subscribe to this must have journal today!

    This banner text can have markup.. web; books; video; audio; software; images; Toggle navigation.   Retina physiology 1. Introduction Retina is a multilayered sensory tissue that lines the back of the eye. It contains millions of light receptors that captures light rays and convert them into electrical impulses. These impulses travel along the optic .


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Determination and regulation of polarity in the retina of Hyla regilla by Richard Marshall Eakin Download PDF EPUB FB2

Get this from a library. Determination and regulation of polarity in the retina of Hyla regilla. [Richard M Eakin]. Eakin, R.M.: Determination and regulation of polarity in the retina of Hyla regilla. Univ. of Calif. Publ. Zool. 51, (). Google Scholar. Chronology of neuron regulation. Exp. Zool.

(). () The Cell Cycle, Cell Lineage, and Neuronal Specificity. In: Reinert J., Holtzer H. (eds) Cell Cycle and Cell Cited by: An electron microscopical study of the third eye of the Western Fence Lizard, Sceloporus occidentalis, fixed with 1 per cent osmium tetroxide, pH –, for 16 to 20 hours at 0°C., revealed the following new facts.

The fibrillar system of the retinal photoreceptor consists of nine double fibrils Author: Richard M. Eakin and Jane A. Westfall. The ultrastructural differentiation of the adhesive disk of the Pacific treefrog, Hyla regilla, was studied by electron microscopy of embryos varying in age from mid-neurula to early larva.

Special attention was given to the development of the ergastoplasm and secretory granules—two cytostructures which are absent in the neurular anlage of the sucker but become prominent by the late tailbud by:   Eakin, R.

M.: Determination and regulation of polarity in the retina of Hyla Calif. Publ. Zool. 51, – (). Google ScholarCited by: An experimental study of the histological and functional differentiation of the epithelial hypophysis in Hyla regilla.

Burch. Univ. Calif. Berkeley Publ. Zool Determination and regulation of polarity in the retina of Hyla regilla. Eakin. Univ. Calif. Berkeley Publ. Zool [Regulation of amphibian melanophores] Golichenkova IF.

Usp Sovrem Biol. EAKIN RM: Determination and Regulation of Polarity in the Retina of Hyla Regilla. Unh, California Publ ZoolVertebrate eye development Saha, Servetnick, Grainger COWAN WM, HUNT RK: The Development of the Retinotectal Projection: An Overview.

In Bases of Neztral Development Edited by Edelman GM, Gall WE, Cowan by: Hypothalamic grafts from embryos, larvae, and adults, of the Pacific Treefrog, Hyla regilla, and the Tiger Salamander, Ambystoma tigrinum, homoplastically transplanted to young larvae previously hypophysectomized at the tailbud stage, evoked melanin dispersion and aggregation of reflecting pigment in host chromatophores.

To avoid contamination with adenohypophysial hormones hypothalamic tissue Cited by: The onset of chromatophore-stimulating activity by hypothalamic grafts from tailbud embryos of the Pacific Treefrog, Hyla regilla, occurred at post-tailbud stages 20 and 21 (Eakin's series).

Adenohypophysial grafts, on the other hand, evoked initial responses in the host melanophores at young larval stages 23 and Cited by: 7.

Finally, gene mutations may compromise the regulation of limb polarity and the identity of limb elements and bring about multiplications.

A mutation of the Gli3 gene in mice, for example, which allows ectopic Shh expression in the limb bud mesoderm results in polydactyly (Schimmang et al., ; Hui and Joyner, ).Cited by: Anatomy and Physiology of the Retina Retinal Microstructure The figure to the left below is a light micrograph illlustrating across section of the retina.

To the right are drawn in complete outline a few of thecells whose cell bodies only are visible in the micrograph. The micrograph anddrawing illustrate that the retina is organized both. Although retinal will overlap with etretinate to some extent, this will cause no problem since the normal concentration in blood specimens is too minimal to cause any interference in the determination of etretinate levels.

The actual retention times and analytic recoveries are summarized in Table II. This suggests that catecholamines might play a modulatory role in the regulation of the neural activity of pineal luminance neurons. 1. Early neurulae of the treefrog, Hyla regilla, were treated for 48 hours with actinomycin D (4–6 μg/ml) to inhibit the development of the oral sucker.

At the conclusion of the experiment (i.e. after 2 days) suckers in controls (late tailbud stage) were fully differentiated and functional paired disks composed of intensely pigmented, columnar, secretory cells; those in experimental Cited by: An ultrastructural examination of regions of neural folds in the neurulae of three amphibian species (Hyla regilla, Rana pipiens, and Xenopus laevis), using both transmission and scanning electron microscopy, revealed that, prior to fusion, there is formation of vesicles within cells lining the neural groove, development of extracellular vesicles, changes in the surface morphology of the cells Cited by: You can save articles, manage email alerts, and easy revisit frequent searches.

1. Illuminated and dark-adapted parietal eyes of 44 Western Fence Lizards, Sceloporus occidentalis, were studied cytochemically. Additionally, the eyes of 46 non-experimental animals were variously fixed and stained, many of them with 1% osmium tetroxide for electron microscopy.

Glycogen, demonstrated by the periodic acid Schiff (PAS) reaction, was more abundant in dark Cited by: The anterior and posterior presumptive epidermis of the early gastrula of Hyla regilla possess essentially the same degree of competence for neural plate formation.

The Photoreceptor Connecting Cilium A Model for the Transition Zone. A Model for the Transition Zone Eakin, R.M., and Westfall, J.A.,The development of photoreceptors in the stirnorgan of the treefrog, Hyla regilla, Embryologia – CrossRef Google M., and Adler, R.,Na +, K +-ATPase polarity in retinal photoreceptors Cited by: 7 different perspectives in mimicry system In the first half of this book, I have des cribed the structure of mim ic ry, its d iversity and typologies, given an overview of the semiotics of Author: Timo Maran.

Chapter 12 Evolutionary conservation biology Invited book chapter, Editors, I. Schlupp, A. Pilastro and J. Evans, The evolutionary ecology of the Livebearing Fishes”.Determination and regulation of polarity in the retina of Hyla regilla by Richard M.

Eakin (University of California publications in zoology, v. 51, no. 10) University of California Press, ii. Modulation of cell proliferation by retinal fiber input Article (PDF Available) in The Journal of Neuroscience 3(5) June with 39 Reads.