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Habitat, Diurnal, And Tidal Effects On The Behavior Of Glaucous- Winged Gulls (Larus Glaucescens), Dean Pearson
Habitat, Diurnal, And Tidal Effects On The Behavior Of Glaucous- Winged Gulls (Larus Glaucescens), Dean Pearson
Loma Linda University Electronic Theses, Dissertations & Projects
The objectives of this study were to determine the effects of habitat, time of day and tide on the behavior of Glaucous-winged gulls nesting on Protection Island, Jefferson County, Washington. During the period of March - June, 1991, more gulls were present in the colony and their rates of behavior were greater during the morning and evening hours than during midday.
Though gull numbers and their rates of behavior in the colony tended to increase with tidal cycle, a plateau in these numbers and rates consistently occurred between +0.3m to +1.2m above mean tide.
More intrusion and courtship-related activity occurred …
Modulation Of Rat Hepatic S9-Dependent Mutagenesis, Dna Binding, And Metabolism Of Aflatoxin B1 And Benzo[A]Pyrene By Four Chinese Medicinal Herbs, Brian Yuen Yau Wong
Modulation Of Rat Hepatic S9-Dependent Mutagenesis, Dna Binding, And Metabolism Of Aflatoxin B1 And Benzo[A]Pyrene By Four Chinese Medicinal Herbs, Brian Yuen Yau Wong
Loma Linda University Electronic Theses, Dissertations & Projects
Extracts of the herbs Oldenlandia diffusa (OD) and Scutellaria barbata (SB) have been used in traditional Chinese medicine for treating liver, lung and rectal tumors while extracts of Astragalus membranaceus (AM) and Ligustrum lucidum (LL) are often used as adjuncts in cancer therapy. In this study, we determined the effects of aqueous extracts of these four herbs on aflatoxin B1 (AFB1) benzo[a]pyrene (BaP), benzo[a]pyrene 7,8-dihydrodiol (BaP 7,8-DHD) and benzo[a]pyrene 7,8-dihydrodiol-9,10-epoxide (BPDE)-induced mutagenesis, mediated by enzymes in rat hepatic 9000 x g supernatant (S9), in Salmonella typhimurium TA100. We also studied the effects of these four herbs on …