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A courage of crows The natural history of the American crow


, : A courage of crows The natural history of the American crow. Unknown


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Wen, B.; Zhao, J.; Melnik, R.; Tian, Y., 2011: Body-centered tetragonal B2N2: a novel sp3 bonding boron nitride polymorph. A novel polymorph of boron nitride (BN) with a body-centered tetragonal structure (bct-BN) has been predicted using first-principles calculations. The structural, vibrational, and mechanical calculations indicated that bct-BN is mechanically stabl...

Yamaguchi, S.; Tsuchiya, H.; Kobayashi, S., 1994: Electroencephalographic activity associated with shifts of visuospatial attention. The neural processes underlying shifts of visuospatial attention were studied in normal adults by non-invasive recording of brain electrical activity. Event-related evoked potentials (ERPs) were recorded during target detection tasks with targets...

Venkateswararao, A.; Thomas, K.R.Justin.; Lee, C-Pei.; Li, C-Ting.; Ho, K-Chuan., 2014: Organic dyes containing carbazole as donor and π-linker: optical, electrochemical, and photovoltaic properties. A series of new metal free organic dyes containing carbazole as donor and π-linker have been synthesized and characterized as effective sensitizers for dye sensitized solar cells (DSSCs). The carbazole functionalized at C-2 and C-7 served as elec...

Gusdon, A.M.; Callio, J.; Distefano, G.; O'Doherty, R.M.; Goodpaster, B.H.; Coen, P.M.; Chu, C.T., 2017: Exercise increases mitochondrial complex I activity and DRP1 expression in the brains of aged mice. Exercise is known to have numerous beneficial effects. Recent studies indicate that exercise improves mitochondrial energetics not only in skeletal muscle but also in other tissues. While exercise elicits positive effects on memory, neurogenesis,...

Kato, Mutsuo, 1955: The structure of the comparatively stable or balanced population with special reference to the comparison between various biotically related insect populations. By correlation method or occurrence probability method, some habitats, where populations have respectively characteristic relative abundance between constituent species, are objectively derived from animal populations taken at random.

Johannsson, O., E.; Millard, E.S.ott; Ralph, K., M.; Myles, D., D.; Graham, D., M.; Taylor, W., D.; Giles, B., G.; Allen, R., E., 1998: The changing pelagia of Lake Ontario (1981 to 1995): A report of the DFO Long-Term Biomonitoring (Bioindex) Program. The Bioindex, or Long-Term Biological Monitoring Program on Lake Ontario commenced in 1981 as a prototype program for biological monitoring. The physical conditions, nutrient concentrations, and the biomass, composition and production of the lower...

Hogarth, M.B.; Marshall, P.; Lovat, L.B.; Palmer, A.J.; Frost, C.G.; Fletcher, A.E.; Nicholl, C.G.; Bulpitt, C.J., 1996: Nutritional supplementation in elderly medical in-patients: a double-blind placebo-controlled trial. The aim of this study was to assess the effect of vitamin and/or glucose energy supplementation in elderly medical patients on an intention-to-treat basis. One hundred and six elderly medical in-patients were entered into a double-bind placebo-con...

G.R., 1975: Buoys will be buoys. Science 188(4186): 345-345

Ramanathan, C.; Stowie, A.; Smale, L.; Nunez, A.A., 2011: Phase preference for the display of activity is associated with the phase of extra-suprachiasmatic nucleus oscillators within and between species. Many features of the suprachiasmatic nucleus (SCN) are the same in diurnal and nocturnal animals, suggesting that differences in phase preference are determined by mechanisms downstream from the SCN. Here, we examined this hypothesis by characteri...

Matella, N.J.; Braddock, R.J.; Gregory, J.F.; Goodrich, Rée.M., 2005: Capillary electrophoresis and high-performance liquid chromatography determination of polyglutamyl 5-methyltetrahydrofolate forms in citrus products. The 5-methyltetrahydrofolate (5mTHF) polyglutamates in citrus products were analyzed by capillary electrophoresis (CE) and high-performance liquid chromatography (HPLC). Folate species were purified from citrus products and concentrated from 2- to...