47,124 research outputs found
Letter from G. E. Cheek to S. B. Simons
No full textLetter from G. E. Cheek to S. B. Simons, concerning picnic
Letter from G. E. Cheek, Principal and Jeanes Supervisor of Negro Schools, to S. B. Simmons. Letter from S. B. Simmons to G. E. Cheek
No full textLetter from G. E. Cheek, Principal and Jeanes Supervisor of Negro Schools, to S. B. Simmons, concerning picnic. Letter from S. B. Simmons to G. E. Cheek, concerning invitations to picnic
Letter from D. M Jarnigan and G. E. Cheek to County Commissioners. Flyer for Vocational Picnic
No full textLetter from D. M Jarnigan and G. E. Cheek to County Commissioners announcing Vocational Picnic. Flyer for vocational picnic
FIG. 1 in Gymnosiphon mayottensis Cheek, sp. nov. (Burmanniaceae) a new species from Mayotte, Comoro Islands
No full textFIG. 1. — Gymnosiphon mayottensis Cheek, sp. nov.: A, habit; A', detail showing base of stem and roots; B, branch of inflorescence with flower buds and detail of bract; C, dissection of large flower bud from B; D, open flower; E, perianth and stigmas (from photo); F, stamen and pair of lateral outer perianth lobes from bud dissected in C; G, stigmatic filament looped over lateral perianth lobe in bud dissected in C; H, fruit (dried). All drawn from S. Traclet 665 (MAO03189), liquid preserved, unless otherwise indicated. Drawn by Andrew Brown. Scale bars: A, 1 cm; A', B, C, D, H, 2 mm; E, F, G, 1 mm.Published as part of Cheek, Martin & Traclet, Sébastien, 2020, Gymnosiphon mayottensis Cheek, sp. nov. (Burmanniaceae) a new species from Mayotte, Comoro Islands, pp. 179-188 in Adansonia 42 (8) on page 183, DOI: 10.5252/adansonia2020v42a8, http://zenodo.org/record/387745
Letter from S. B. Simmons to G. E. Cheek
No full textLetter from S. B. Simmons to G. E. Cheek, concerning establishment of Farm Colony
Letter from S. B. Simmons to G. E. Cheek
No full textLetter from S. B. Simmons to G. E. Cheek, concerning previous letter
Letter from S. B. Simmons to G. E. Cheek
No full textLetter from S. B. Simmons to G. E. Cheek, sending in program
Long-term growth in vitro of isolated, fully differentiated neurones from the central nervous system of an adult insect
No full textA method is described for the isolation and growth in vitro of fully differentiated neurones from the thoracic ganglia of adult cockroaches. The presence of insect blood in the culture system is shown to promote growth. The morphology of the growing neurones and the plasticity of the branching processes are described and growth rates are measured. Using a fluorescent Ca2+ indicator dye, changes of intracellular calcium levels in the growing neurones in response to K+ depolarization have been measured. The results, indicating the presence of voltage-dependent Ca2+ channels on neuronal processes in vitro, show that neurones can be maintained in a functional state for several weeks by this technique. Such preparations could prove useful for studying a variety of physiological and pharmacological properties of neurones, including the mechanisms controlling growth, synapse formation and neuronal interactions with other cell types. <br/
Letter from S. B. Simmons to G. E. Cheek, Warren County Training School
No full textLetter from S. B. Simmons to G. E. Cheek, Warren County Training School, concerning supplies for picnic
A giant keratoacanthoma of the cheek
No full textKeratoacanthoma (KA) is a cutaneous tumor arising on sun-exposed skin and characterized by self-limiting growth and involution. We reported a case of a 92-year-old man presented a 4.5x3.5 cm nodular lesion with a central keratin-filled crater on his left cheek. We performed surgical excision and histopathological examination revealed a keratoacanthoma with perineural invasion. A close follow-up was carried out. (www.actabiomedica.it).
© Mattioli 1885
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