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Activity metabolism of the toad (Bufo americanus): Ecological consequences of ontogenetic change
(Springer: Journal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology, 1981-06)
Following metamorphosis, juvenile toads form dense, heliothermic aggregations on the margins of the ponds from which they emerge. After a period of growth and development, during which body mass increases ten-fold, the ...
Internal fertilization in an oviparous frog
(American Association for the Advancement of Science: Science, 1981-04)
Eleutherodactylus coqui, an oviparous frog, undergoes internal fertilization. If this mode of fertilization occurs in other species of anurans, interpretations of anuran reproductive strategies based on the assumption of ...
Two-stage spatial-filtering for diffraction pattern-analysis
(Optical Society of America, 1981-03)
The use of optical power spectrum analysis for feature detection and classification is often restricted by the superposition of the aperture spectrum. A spatial frequency filtering technique using a circular aperture and ...
Inhibition and inactivation of liver aldolase
(Elsevier: Archives of Biochemistry and Biophysics, 1981-02)
Substrate analogs xylulose 1,5-bisphosphate, glucitol 1,6-bisphosphate, alpha-2,5-anhydroglucitol 1,6-bisphosphate, alpha-, beta-methyl fructofuranoside 1,6-bisphosphate, ribulose 1,5-bisphosphate, ribulose 5-phosphate, ...