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Habitat relationships and habitat variability of the wood warblers (Parulidae)
(1981)
Based on 13 structural variables, the habitat structure of 16 species of wood warblers breeding in north-central Minnesota can be divided into three general habitat types: open country, shrub-forest edge, and mature forest. ...
Allelopathic effects of Polygonum aviculare L.
(1981)
Therefore, allelopathy appeared to be the dominant component of the interference, with competition probably accentuating its effects. Polygonum aviculare was inhibitory to Gossypium barbadense L. and Sorghum bicolor (L.) ...
In vitro interactions of immune lymphocytes and Cryptococcus neoformans.
(1981)
CBA/J mice immunized subcutaneously with heat-killed Cryptococcus neoformans-complete Freund's adjuvant (HKC-CFA) emulsions developed delayed-type hypersensitivity (DTH) responses to cryptococcal culture filtrate (CneF) ...
The effects of diet and carcinogen on the natural killer cell activity of sprague dawley rats.
(1981)
This study was conducted to determine if dietary fat and/or administration of 7,12 dimethylbenz((alpha))anthracene (DMBA) to Sprague Dawley rats affected the natural killer cell activity of these animals.
Studies in the dinoflagellate genera, Peridinium and Peridiniopsis.
(1981)
Photoheterotrophy occurs in Peridinium willei, P. limbatum, P. inconspicuum, and Peridiniopsis polonicum. All species tested exhibited photoheterotrophy except P. volzii. Growth of all species was strongly depressed by ...
Blastomyces dermatitidis :
(1981)
A hybridoma cell line was isolated which produced monoclonal antibody to one protein component of a yeast-phase cytoplasmic antigen of B.dermatitidis. The IgM antibody product was characterized by immunodiffusion, ...
Immunomodulation by Blastomyces dermatitidis :
(1981)
We have previously shown that Merthiolate-killed Blastomyces dermatitidis yeast cells greatly enhance the cell-mediated immune response in C57BL/6J mice. Therefore, the use of this fungus as an immunopotentiator against ...
Reproductive studies in the genus Callirhoe (Malvaceae)/
(1981)
Callirhoe involucrata (Torr.) Gray (Malvaceae) is protandrous; however, the temporal separation of the sexual phases is incomplete and the occurrence of a self pollination is possible. Unexpected results were obtained ...