351
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Webster DB, Webster M. Neonatal sound deprivation affects brain stem auditory nuclei. ARCHIVES OF OTOLARYNGOLOGY (CHICAGO, ILL. : 1960) 1977; 103:392-6. [PMID: 880104 DOI: 10.1001/archotol.1977.00780240050006] [Citation(s) in RCA: 230] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
CBA/J mice deprived of airborne sound stimulation during postnatal development have smaller globular cells in the ventral cochlear nucleus and smaller neurons in the medial nucleus of the trapezoid body than do normal control mice. The sound deprivation in these mice is similar to that experienced by persons with pure congenital conductive hearing losses. Even more profound central neural changes were found in auditory nuclei in the brain stem of a congenitally sensorineural deaf human.
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352
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353
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Webster M. Breast conservation in mammary carcinoma. West J Med 1977. [DOI: 10.1136/bmj.1.6064.841-d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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354
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Webster M. Kangaroo rat cochlea: qualitatively and quantitatively unique features. TRANSACTIONS. SECTION ON OTOLARYNGOLOGY. AMERICAN ACADEMY OF OPHTHALMOLOGY AND OTOLARYNGOLOGY 1977; 84:223-32. [PMID: 898499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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355
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Webster M, Mudd K, Taylor D. The crystal and molecular structure of tetraphenylarsonium methyltetrachlorostannate(IV) showing marked variation in anion geometry. Inorganica Chim Acta 1976. [DOI: 10.1016/s0020-1693(00)94121-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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356
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Hanlon J, Panvini R, Waters J, Webster M, Morris TW. Study of diffraction dissociation in 19- and 28-GeV/cpdinteractions. Int J Clin Exp Med 1975. [DOI: 10.1103/physrevd.12.673] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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357
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Webster DB, Webster M. Auditory systems of Heteromyidae: functional morphology and evolution of the middle ear. J Morphol 1975; 146:343-76. [PMID: 1142444 DOI: 10.1002/jmor.1051460304] [Citation(s) in RCA: 88] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Middle ears (515) from 26 species of the rodent family Heteromyidae - genera Dipodomys, Microdipodops, Perognathus, and Liomys - were studied both grossly and histologically, for qualitative and quantitative comparisons. Middle ear modifications characteristic of each genus are qualitatively described. Quantitative comparisons are made among the 26 species in the study. Some correlations between middle ear size and other measurements are discussed. The middle ear is an acoustical transformer that for best efficiency must match the impedance of the cochlea to the impedance of the air in the external auditory meatus. It accomplishes this by a pressure increase and a velocity decrease through the combined effects of the lever and areal ratios; however, because the important consideration is a matching of two impedances rather than an absolute pressure increase, the pressure transformer ratio is a less informative measure of the middle ear's efficiency than is the impedance transform ratio. The impedance transformer mechanism is explained (from a morphological point of view), and equations are presented. Dipodomys, Microdipodops, and Perognathus have a theoretical transmission (at the resonant frequency) of 94-100% of the incident acoustical energy; Liomys, 78-80%. The areal ratio of stapes footplate to 2/3 tympanic membrane is remarkably constant among the species, varying only from 0.04 to 0.07: in Dipodomys and Microdipodops this small ratio is due to the very large tympanic membrane; in Perognathus and Liomys it is due to the extremely small stapes footplate. The lever ratio of incus to malleus varies from 0.28 to 0.33 in Dipodpmys and Microdipodops, from 0.37 to 0.46 in Perognathus, and from 0.55 to 0.60 in Liomys. In addition, the middle ear volumes and the morphology of tympanic membrane, ossicles, ligaments, and muscles, all combine to minimize both mass and stiffness. All these data suggest middle ear mechanisms which are very efficient over a broad frequency range. The middle ear modifications found in heteromyids are adaptive in predator avoidance, especially in areas of little natural cover; nevertheless, contrary to expectations, there is no firm relationship between habitat and the extent of these modifications in the 26 species. However, environment did apparently plan an important role in the evolution of the family, and this is discussed.
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358
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Peterson AJ, Webster M. Oestrogen concentration in the peripheral plasma of maturing pullets. Br Poult Sci 1974; 15:569-72. [PMID: 4441917 DOI: 10.1080/00071667408416147] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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359
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Webster M. A simple structure-building technique. J Appl Crystallogr 1974. [DOI: 10.1107/s0021889874009964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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360
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Bilton M, Gilson T, Webster M. The vibrational spectra of some chain type silicate minerals. ACTA ACUST UNITED AC 1972. [DOI: 10.1016/0584-8539(72)80185-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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361
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Collins PH, Webster M. The crystal and molecular structure of the 1:1 compound formed between phosphorus pentachloride and tellurium tetrachloride, Cl9PTe. ACTA ACUST UNITED AC 1972. [DOI: 10.1107/s0567740872004078] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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362
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Webster DB, Webster M. Kangaroo rat auditory thresholds before and after middle ear reduction. BRAIN, BEHAVIOR AND EVOLUTION 1972; 5:41-53. [PMID: 5072747 DOI: 10.1159/000123736] [Citation(s) in RCA: 32] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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363
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Bilton MS, Webster M. Crystal structure of germanium tetrachloride–trimethylamine, GeCl4, -NMe3. ACTA ACUST UNITED AC 1972. [DOI: 10.1039/dt9720000722] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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364
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365
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Webster DB, Webster M. Adaptive value of hearing and vision in kangaroo rat predator avoidance. BRAIN, BEHAVIOR AND EVOLUTION 1971; 4:310-22. [PMID: 5165734 DOI: 10.1159/000125441] [Citation(s) in RCA: 51] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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366
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Webster M, Keats S. Crystal structure of arsenic trichloride–trimethylamine, AsCl3,NMe3. ACTA ACUST UNITED AC 1971. [DOI: 10.1039/j19710000836] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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367
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Macdonald JM, Webster M, Drapanas T. Role of bradykinin and serotonin in the dumping syndrome. REVIEW OF SURGERY 1970; 27:296-7. [PMID: 5505849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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368
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Deveney MJ, Webster M. Some adducts of bidentate N-ligands with arsenic trichloride and tribromide. ACTA ACUST UNITED AC 1970. [DOI: 10.1039/j19700001643] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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369
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370
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371
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Bain VA, Killean RCG, Webster M. The crystal and molecular structure of tetrafluorobispyridinesilicon(IV). ACTA ACUST UNITED AC 1969. [DOI: 10.1107/s0567740869001890] [Citation(s) in RCA: 54] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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372
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Webster M, Blayden HE. Crystal structure and vibrational spectrum of tetrachlorotin(IV)–bisacetonitrile. ACTA ACUST UNITED AC 1969. [DOI: 10.1039/j19690002443] [Citation(s) in RCA: 38] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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373
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Beattie IR, Milne M, Webster M, Blayden HE, Jones PJ, Killean RCG, Lawrence JL. Structure of the 1:2 adducts of tellurium-, selenium-, and tin-(IV) tetrachlorides and tin(IV) tetrabromide with pyridine. ACTA ACUST UNITED AC 1969. [DOI: 10.1039/j19690000482] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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374
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Beattie IR, Jones PJ, Webster M. Conductance in acetonitrile of antimony pentachloride and tellurium tetrachloride and of dichloro(dimethyl)silane in the presence of 2,2′-bipyridyl. ACTA ACUST UNITED AC 1969. [DOI: 10.1039/j19690000218] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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375
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Webster M, Deveney MJ. Reaction of 1,10-phenanthroline with some five-valent phosphorus, arsenic, and antimony halides. ACTA ACUST UNITED AC 1968. [DOI: 10.1039/j19680002166] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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376
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Barlow CG, Nixon JF, Webster M. The chemistry of phosphorus–fluorine compounds. Part IX. Preparation and spectroscopic studies of fluorophosphine–molydbenum carbonyl complexes. ACTA ACUST UNITED AC 1968. [DOI: 10.1039/j19680002216] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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377
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Deveney M, Webster M. Compounds of 1,10-phenanthroline with some pentavalent phosphorus, arsenic and antimony chlorides. ACTA ACUST UNITED AC 1967. [DOI: 10.1016/0020-1650(67)80050-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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378
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Chien CY, Lach J, Sandweiss J, Taft HD, Yeh N, Oren Y, Webster M. Hyperon and Antihyperon Production inp¯−pCollisions at 7 BeV/c. ACTA ACUST UNITED AC 1966. [DOI: 10.1103/physrev.152.1171] [Citation(s) in RCA: 45] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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379
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Breattie IR, Webster M. 672. The stereochemistry of some addition compounds of silicon tetrahalides. ACTA ACUST UNITED AC 1965. [DOI: 10.1039/jr9650003672] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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380
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Beattie IR, Livingston K, Webster M. 1358. The stereochemistry of some addition compounds of the PCl4 + ion. ACTA ACUST UNITED AC 1965. [DOI: 10.1039/jr9650007421] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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381
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Beattie IR, Gilson T, Webster M, McQuillan GP. 39. The stereochemistry of addition compounds of silicon tetrahalides, studied by their spectra in the cæsium bromide region. ACTA ACUST UNITED AC 1964. [DOI: 10.1039/jr9640000238] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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382
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Baltay C, Sandweiss J, Sanford J, Brown H, Webster M, Yamamoto S. The separated beam at the AGS - performance with antiprotons and π+ mesons. ACTA ACUST UNITED AC 1963. [DOI: 10.1016/0029-554x(63)90386-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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383
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Beattie IR, McQuillan GP, Rule L, Webster M. 285. The infrared spectra of certain addition compounds of germanium and tin tetrachlorides in the cœsium bromide region. ACTA ACUST UNITED AC 1963. [DOI: 10.1039/jr9630001514] [Citation(s) in RCA: 55] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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384
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Bowie JH, Bullock E, Johnson AW, Cavell RG, Clark HC, Goldstein IJ, Whelan WJ, Mann FG, Loudon JD, Tennant G, Buu-Hoï NP, Jacquignon P, Rose A, Sabathier JF, Sinh MP, Gillard RD, Wilkinson G, Moodie RB, Wale PD, Whaite TJ, van der Merwe KJ, Enslin PR, Pachler K, Birch AJ, Farrar KR, Thomson SJ, Wishlade JL, Casanova J, Schuster RE, Werner ND, Chaudhry MT, Stephens R, Fray GI, Beattie IR, Webster M, Irving H, Kiwan AM. Notes. ACTA ACUST UNITED AC 1963. [DOI: 10.1039/jr9630004260] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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385
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Beattie IR, Webster M. 6. The infrared spectra of phosphorus and antimony pentachlorides and their ionization in acetonitrile. ACTA ACUST UNITED AC 1963. [DOI: 10.1039/jr9630000038] [Citation(s) in RCA: 49] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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386
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Beattie IR, Webster M. 336. The interaction of phosphorus pentachloride with tertiary amines. ACTA ACUST UNITED AC 1961. [DOI: 10.1039/jr9610001730] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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