Now showing items 1-10 of 1342
A note on the direction of energy movement in wavenumber of a two-layer model
(Elsevier, 1986-12)
An equation on the constrained direction of energy movement in wavenumber is derived for the two-layer, f-plane, quasi-geostrophic system.
Stress induced grooming in the rat -- An endorphin mediated syndrome
(Elsevier, 1979-07)
Exposure of adult male Sprague--Dawley rats to a non-traumatic noise-light stress procedure subsequently increased grooming behavior in a novel environment. The grooming syndrome was marginally facilitated by adrenalectomy ...
A VIP-like peptide co-occurs with substance P and enkephalin in cholinergic preganglionic terminals of the avian ciliary ganglion
(Elsevier, 1987-07-09)
Using single-label and double-label immunohistochemical techniques, many of the substance P-enkephalin containing preganglionic terminals of the avian ciliary ganglion were found to also contain a VIP-like peptide. Since ...
The effect of limbic damage on the retention and performance of a runway response
(Elsevier, 1966-07)
Rats were trained to run a linear runway while hungry for food. Then they were tested for retention, continued performance levels, and extinction after recovery from bilateral damage of the hippocampus, the septal area, ...
The temporal structure of motivation: III. Identification and ecological significance of ultradian rhythms of intracranial reinforcement
(Elsevier, 1980-10)
Adult male Sprague-Dawley rats were stereotactically implanted with intracranial electrodes aimed at the anterior medial forebrain bundle, and trained to self-administer intracranial stimulation. Following 3 weeks of ...
Effectiveness factor calculations for immobilized enzyme catalysts
(Wiley Subscription Services, Inc., A Wiley Company, 1973-09)
The steady state, nonlinear diffusion equations which describe reactions in constrained enzyme solutions are of great interest in many biological and engineering applications. As in other types of nonlinear differential ...
Rapid protein release from Escherichia coli by chemical permeabilization under fermentation conditions
(Wiley Subscription Services, Inc., A Wiley Company, 1992-03-25)
Overall protein release greater than 75% in less than 1 h can be attained by exposing exponentially growing Escherichia coli cells to 0.4 M guanidine plus 0.5% Triton X-100 at 37°C in medium. Cell growth stops immediately ...
Effect of Neuropeptide Y on Natural Killer Activity of Normal Human Lymphocytes
(Elsevier, 1993-03)
The in vitro effect of neuropeptide Y (NPY) on natural killer (NK) cell activities of normal lymphocytes was investigated. NPY at 10-9 to 10-12M concentrations produced significant suppression of NK activity against K 562 ...
Toward sustainable development: Implications for population aging and the wellbeing of elderly women in developing countries
(Kluwer Academic Publishers-Human Sciences Press; Human Sciences Press, Inc. ; Springer Science+Business Media, 1996-11)
Attaining sustainable development has significant implications for population age structure, family structure and the wellbeing of elderly women. If one of the primary goals of sustainable development is reducing fertility ...