Now showing items 11-20 of 533
Renewed interest in the polyphosphoinositides
(Elsevier, 1984-02)
The significance of the enhanced cellular phosphatidate and phosphatidylinositol turnover which occurs in response to specific extracellular messengers has been the subject of much interest and speculation. Until recently, ...
On the dynamic order of structured Escherichia coli growth models
(Wiley Subscription Services, Inc., A Wiley Company, 1987-04-20)
Reliable dynamic descriptions of cellular growth are important for many practical applications including bioreactor design and control. A chemically structured growth model of Escherichia coli has been formulated and ...
Root turnover and productivity of coniferous forests
(Martinus Nijhoff/Dr. W. Junk Publishers; Martinus Nijhoff/Dr W. Junk Publishers ; Springer Science+Business Media, 1983-02)
Fine roots and mycorrhizae have recently been shown to produce a major portion of the organic matter entering decomposition. Roots and mycorrhizae constitute 63 to 70% of total net primary production in Douglas-fir and ...
The effects of feeding on heart activity in the terrestrial slug, Limax maximus : central and peripheral control
(Springer-Verlag, 1985-07)
The role of the central nervous system (CNS) in the modulation of heart activity induced by feeding was investigated in the terrestrial slug, Limax maximus . Intact slugs and semi-intact preparations were used to examine ...
Sensitization to stress: The enduring effects of prior stress on amphetamine-induced rotational behavior
(Elsevier, 1985-09-16)
In rats with a unilateral 6-OHDA lesion of the substantia nigra exposure to footshock or immobilization stress produced a long-lasting enhancement in the rotational behavior evoked by a subsequent injection of amphetamine. ...
Purification and properties of an oxygen-evolving reaction center complex from photosystem II membranes : A simple procedure utilizing a non-ionic detergent and elevated ionic strength
(Elsevier, 1986-03-03)
A method is reported for the isolation of a highly resolved oxygen-evolving photosystem II reaction center preparation. This preparation can be separated from the more complex photosystem II membranes isolated by the ...
Lead activates calmodulin sensitive processes
(Elsevier, 1983-09-05)
The effect of lead on two calcium sensitive processes was determined. Micromolar concentrations of lead successfully replaced calcium in the activation of calmodulin-sensitive phosphodiesterase and in the promotion of ...
Linkage of the structural gene for uroporphyrinogen I synthase to markers on mouse chromosome 9 in a cross between feral and inbred mice
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1982-08)
The Ups locus has been mapped to mouse chromosome 9 in a three-point cross. The observed gene order is centromere- Ups -15- Mpi-1 -22- Mod-1 . Ups is unlinked to Lv , which encodes the previous enzyme in the heme biosynthesis ...
Mesh size and collection characteristics of 50-cm diameter conical plankton nets
(Kluwer Academic Publishers; Dr. W. Junk Publishers ; Springer Science+Business Media, 1985-03)
This paper compares collection characteristics of #2-(363 µm), #10-(156 µm), and #20-(76 µm) mesh conical plankton nets: dimensions were 50-cm diameter by 1.6-m long. The #2-mesh net severely underestimated the abundances ...