The problem of this research is to discover viewer response to the television series, "Roots," as revealed through newspapers and magazines published from December, 1976, to June 20, 1977. Thirty-seven articles and 134 interviewee responses were analyzed. The responses with the highest frequency of occurrence in the sample provided eight major categories (listed in the order of highest to lowest frequency of response): inaccuracy/oversimplification, increased awareness, future race relations, white guilt, black anger, future prime time television programming, black pride, and sadness. The predominant appeal of "Roots" was to the emotions of the viewers. Despite the criticism of inaccuracy and/or oversimplification, "Roots" was a timely presentation relating to a current social concern with justice and heritage.

Digitized by Kansas Correctional Industries

No description available.

No description available.

This thesis is concerned with an analysis of swimming of oomycete zoospores, particularly in relation to the hypothesis that electrotaxis mediated host root colonisation. A correlation was found between the electrotactic behaviour of zoospores of <I>Phytophthora palmivora </I>and <I>Pythium aphanidermatum</I> and their localisation relative to anodic or cathodic regions of the majority of non-host roots. Cathodotropic <I>P. aphanidermatum </I>zoospores were found to be attracted to the cathode generated at the wound site on monocotyledonous and dicotyledonous plant roots studied. Zoospores of <I>P. aphanidermatum</I> were also found to become gradually less attracted to these wound sites as they dissipated over time. Anodotropic <I>P. palmivora </I>zoospores were found to be repelled by the cathodic wound sites on roots of all plants investigated, with the exception of <I>Petunia hybrida. </I>In addition to this zoospores of <I>P. aphanidermatum</I> were found not exhibit chemotaxis or encystment in gradients of the wound-specific metabolite acetosyringone. This suggests that electrotaxis and chemotaxis both operate in directing zoospore accumulation around roots. This reduction of the conductivity of the bathing medium by the addition of different concentrations of sodium chloride salts did not appear to affect the accumulation of both zoospore species around roots of rye grass. The results of this study supports the hypothesis that zoospores use electrotaxis as one means to locate new plant hosts in the rhizosphere. However, chemotaxis may still augment the regulation of zoospore colonisation and encystment.

Thesis (doctoral)--Universität Leipzig, 1874. / Cover title. Includes bibliographical references.

Thesis (doctoral)--Universität Leipzig, 1874. / Cover title. Includes bibliographical references.

Thesis (Ph. D.)--University of Michigan, 1920. / "Reprinted from the American journal of botany, vol. VII, November, 1920." Includes bibliographical references (p. 404-406).

Thesis (Ph. D.)--University of Nebraska, 1925. / Cover title. Published also without thesis note. By Frank C. Jean and John E. Weaver. Bibliography: p. 66.

Thesis (Ph. D.)--University of Michigan, 1920. / "Reprinted from the American journal of botany, vol. VII, November, 1920." Includes bibliographical references (p. 404-406).