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The monotypic delesseriaceous genus Opephyllum was created by Schmitz in Schmitz and Hauptfleisch for O. martensii, represented by a single collection from Zamboanga on the southwestern tip of Mindanao in the southern Philippines. As the type specimen or collection is no longer in existence, we are ...
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Long-term studies on the reproductive fitness of fish under controlled exposure conditions are necessary to address some of the controversy surrounding the field-based studies of pulp and paper effluent effects. This study undertook effluent exposures of 2+ age rainbow trout that were approximately ...
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N. ulvacea (Berkeley ex Kuetz.) PT Cleve, a marine colonial blade-forming diatom originally discovered in Scotland, was collected at North Rustico, Prince Edward Island, Canada, during the winter of 1971. It formed dense stands of Porphyra-like fronds, ranging up to 60 mm long .times. 20 mm wide. Th...
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Reports on a plan by a coalition of landowners in the rural municipality of South Stukely in the Eastern Townships of Quebec, to establish a nature conservancy on their private lands that would incorporate an energy corridor right-of-way. Objective of biological conservation; Roadblocks that have pr...
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Explores aspects of floral development in Philodendron grandifolium and Philodendron megalophyllum. Initiation of pistillate and staminate flowers; Morphology of the mature flowers; Function of the presence of calcium oxalate crystals; Observations of the homeotic shift between carpels and staminode...
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The present study demonstrates alterations in the regulation of matrix metalloproteinase-2 (MMP-2) expression in response to insulin like growth factor-1 (IGF-1) in a H-ras transformed cell line, C3, which is capable of metastasis formation. These changes in MMP-2 expression in response to IGF-1 tre...
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Expression of individual superoxide dismutase (SOD) transgenes improves environmental stress tolerance and biomass production in alfalfa (Medicago sativa L.). The objective of this study was to test the hypothesis that synergy exists between transgenic SOD stress-tolerance mechanisms, specifically t...
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Haemolymph from larvae of Simulium venustum Say collected in Canada was tested for the presence of 49 amino acids and other ninhydrin-positive compounds. The concentrations found are listed and discussed. In connection with the possible control of S. venustum by parasitic Mermithids, it is pointed o...
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Several salt compounds were tested in vitro as inhibitors of Erwinia carotovora subsp. atroseptica (van Hall) Dye (Eca) and Erwinia carotovora subsp. carotovora (Jones) Bergey, Harrison, Breed, Hammer & Huntoon (Ecc), causal agents of bacterial soft rot of potato. All compounds were mixed with p...
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Osmotic minipumps are often used as an alternative to repetitive injections for prolonged drug delivery in adult rats. The appropriateness of using this technology for sustained drug delivery in newborn rats, however, has not been validated. Our objective was to determine if implantation of osmotic ...