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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
61

VARIATION IN THREE SYMPATRIC SIBLING SPECIES OF WHIPTAIL LIZARDS

Wright, John W. (John William), 1936- January 1965 (has links)
No description available.
62

A genetic study of the variation in abdominal patterns in the fruit flies Drosophila arizonensis and Drosophila mojavensis

Truett, Mary Cassandra Schlentz, 1943- January 1966 (has links)
No description available.
63

Morphological variation in the Fringed myotis, Myotis thysanodes Miller (Vespertilionidae)

Wright, David Terry, 1937- January 1966 (has links)
No description available.
64

Pigmentation changes of Rana pipiens and Xenopus laevis during larval development and at metamorphosis

Collins, Sheila Joan, 1935- January 1961 (has links)
No description available.
65

Variation in a restricted population of the Valley pocket gopher (Thomomys bottae)

Dingman, Ross Evan, 1928- January 1966 (has links)
No description available.
66

Phenotypic selection in Impatiens pallida and Impatiens capensis

Brassard, Jonathan Thomas January 1989 (has links)
No description available.
67

Analyse de la variation intra- et inter-populationnelle : application de deux méthodes craniométriques sur des collections amérindiennes-canadiennes

Lettre, Josiane January 2009 (has links)
Mémoire numérisé par la Division de la gestion de documents et des archives de l'Université de Montréal
68

Variation and change in the vowel system of Tyneside English

Watts, Dominic James Landon January 1998 (has links)
This thesis presents a variationist account of phonological variation and change in the vowel system of Tyneside English. The distributions of the phonetic exponents of five vowel variables are assessed with respect to the social variables sex, age and social class. Using a corpus of conversational and word-list material, for which 32 speakers of Tyneside English were recorded, between 30 and 40 tokens per speaker of the variables (i), (u), (e), (o) and (3) were transcribed impressionistically and subclassified by following phonological context. The results of this analysis are significant on several counts. First, the speakers sampled appear to differentiate themselves within the speech community through the variable use of certain socially marked phonetic variants, which can be correlated with the sex, age and class variables. Secondly, the speakers style shift to a greater or lesser degree according to combinations of the three social factors, such that surface variability is reduced as a function of increased formality. Third, the overall pattern among the sample population seems to be one of increasing uniformity or convergence: it is speculated that social mobility among upper working- and lower-middle class groups may lead to accent levelling, whereby local speech forms are supplanted by supra-local or innovative intermediate ones. That is, the patterns observed here may be indicative of change in progress. Last, a comparison of the results for the (phonologically) paired variables (i u) and (e o) shows a strong tendency for Tyneside speakers to use these 'symmetrically', in that choice of variant in one variable predicts choice of variant in the other. It is suggested that the symmetry in the system is exploited by Tyneside speakers for the purposes of indicating social affiliation and identity, and is in this sense an extra sociolinguistic resource upon which speakers can draw. In addition, the variants of (3) are discussed with reference to the reported merger of this variable with (a); it is suggested that the apparent 'unmerging' of these two classes is unproblematic from a structural point of view, as the putative (3)—(o) merger appears never to have been completed.
69

Lactate dehydrogenase and phosphoglucose isomerase isozymes and allozymes of the brown trout (Salmo trutta L.)

Henry, T. January 1984 (has links)
No description available.
70

Estimation of causal components of phenotypic variance for pupa weight in tribolium.

Tanny, Rosalie Binnie January 1970 (has links)
No description available.

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