Now showing items 21-30 of 3317
Appetitive determinants of self-stimulation
(Elsevier, 1978-08)
Previous reports have pointed to a biologically meaningful relationship between brain-stimulated reward and appetitive motivation such as feeding. The present experiments further examined this relationship in chronically ...
Cysteine 265 Is in the Active Site of, But Is Not Essential for Catalysis by tRNA-Guanine Transglycosylase (TGT) from Escherichia coli
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1997-01)
Site-directed mutagenesis and X-ray absorption spectroscopy studies have previously shown that the tRNA-guanine transglycosylase (TGT) from Escherichia coli is a zinc metalloprotein and identified the enzymic ligands to ...
The distribution of Heterotrissocladius oliveri Saether (Diptera: Chironomidae) in Lake Michigan
(Kluwer Academic Publishers; Dr W. Junk Publishers ; Springer Science+Business Media, 1986-02)
Fifty one chironomid species were identified from 504 samples collected at depths ranging 8 to 267 m in Lake Michigan, U.S.A. Heterotrissocladius oliveri Saether occurred in 32% of these samples and had an average abundance ...
Optimal foraging and fitness in Columbian ground squirrels
(Springer-Verlag, 1990-01)
Optimal diets were determined for each of 109 individual Columbian ground squirrels ( Spermophilus columbianus ) at two sites in northwestern Montana. Body mass, daily activity time, and vegetation consumption rates for ...
Endangered species update, 2:9 (July 1985)
(University of Michigan, School of Natural Resources, 1985-07)
Length variation of CAG repeats in Sry across populations of Mus domesticus
(Springer-Verlag, 1995-03)
Endangered species update, 11:5 (March 1994)
(University of Michigan, School of Natural Resources, 1994-03)
Some factors influencing the distribution of mammals in Ohio
(University of Michigan Museum of Zoology, 1930)