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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.
1

Biological factors affecting cattle lice

Gojmerac, Walter L. January 1955 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1955. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 29-30).
2

COMPARATIVE ANTIGENIC ANALYSIS OF THE CATTLE LICE HAEMATOPINUS EURYSTERNUS, H. QUADRIPERTUSUS AND LINOGNATHUS VITULI

Zaugg, Jerry Lynn January 1978 (has links)
No description available.
3

Biology and control of the head louse, Pediculus humanus capitis (Anoplura: pediculidae), in a semi-arid urban area

Lang, James Delmer January 1975 (has links)
No description available.
4

Studies into the insecticidal activity and mode of action of monoterpenoid constituents of essential oils against the human louse, Pediculus humanus

Priestley, Caroline Mary January 2002 (has links)
The incidence of head lice, Pediculus humanus capitis, in the West is increasing, with insecticide resistance the likely cause. Previous studies have explored the utility of essential oils, and some of their constituent monoterpenoids, in the treatment of head lice. This investigation examines the relative short-term toxicity of a range of different monoterpenoid structures on adult clothing lice, Pediculus humanus cmporis, and their eggs; a structure-activity series was generated for the adults, and partially for eggs. The most effective monoterpenoid against adult lice was (+)-terpinen-4-ol, with monocyclic compounds containing a single 0-atom having the highest activities. Furthermore, there appear to be important differences between the relative potencies of monoterpenoids on lice and eggs, as nerolidol was particularly effective against eggs but completely ineffective against adult lice. To investigate the insecticidal mechanism of action of monterpenoids, various pediculicidal structures were screened for activity on an insect ionotropic GABA receptor, composed of the Drosophila melanogaster subunit RDLac, expressed in Xenopus oocytes. Thymol, eugenol and carvacrol potentiated GABA responses at this receptor, and possessed agonist activity at high concentrations. This is the first documentation of monoterpenoid bioactivity at an isolated insect receptor known to be representative of an in vivo insecticidal target. Thymol also had potentiating and agonist effects on human al(33y2s GABAA receptors expressed in Xenopus oocytes, and 50 (AM thymol induced a leftwards shift of the GABA dose-response curve. Further work on this receptor examined the interaction of thymol with previously characterised modulator binding sites. The results of functional studies suggest that thymol does not share a binding site with benzodiazepines, barbiturates, steroids, propofo1,13-carbolines or loreclezole. The direct involvement of insect GABA receptors in monoterpenoid insecticidal activity remains to be confirmed, as does the location of the thymol binding site on insect and mammalian ionotropic GABA receptors.
5

Studies on the biological and control of human lice

Maunder, John W. January 1984 (has links)
No description available.
6

Modelling populations of Bovicola bovis on cattle

Bryars, Simon January 2001 (has links)
No description available.
7

Comparative studies of ectoparasite communities of birds

Walther, Bruno Andreas January 1997 (has links)
No description available.
8

Systematic study of the genus Craspedolepta Enderlein, 1921 (Homoptera: Psyllidae) in North America.

Joumet, Alan R. P. January 1973 (has links)
No description available.
9

Taxonomy, phylogeny and host relationships of the Trichodectidae (Phthiraptera: Ischnocera)

Lyal, Christopher Henry Coutts January 1983 (has links)
No description available.
10

Anemia and weight loss in louse infested range cattle

Collins, Richard C., 1941- January 1966 (has links)
No description available.

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