Now showing items 11-20 of 405
Boron-modified polysilylcarbodi-imides as precursors for Si–B–C–N ceramics: Synthesis, plastic-forming and high-temperature behavior
(John Wiley & Sons, Ltd., 1998-10)
The synthesis, by two different reaction pathways, of boron-modified polysilylcarbodi-imides of general type {B[C 2 H 4 Si(R)NCN] 3 } n (R 14=singly bonded organic ligand) and the plastic-forming and the thermal behavior ...
cDNA and derived amino acid sequence of rabbit nasal cytochrome P450NMb (P450IIG1), a unique isozyme possibly involved in olfaction
(Elsevier, 1991-02-15)
Olfactory-specific cytochrome P450NMb was previously purified to electrophoretic homogeneity from microsomes of rabbit nasal mucosa in this laboratory. In the present study, a cDNA library made from poly(A)+ RNA from rabbit ...
Actin polymerization in cellular oxidant injury
(Elsevier, 1991-08-01)
Microfilaments undergo an ATP-dependent disruption into shortened bundles following cellular exposure to oxidants. This phenomenon does not require a net change in the amount of polymerized actin. However, increased amounts ...
Thermodynamics of iron sulfides I. Heat capacity and thermodynamic properties of Fe9S10 at temperatures from 5 K to 740 K
(Elsevier, 1991-03)
Measurements of the heat capacity of Fe9S10 over the temperature range 5 K to 740 K reveal a first-order structural transition at 495 K and two higher-order transitions with maxima at 534 K and 591 K. The last two are of ...
Hormonal regulation of steroidogenic enzyme gene expression in Leydig cells
(Elsevier, 1992-12)
In normal mouse Leydig cells, steady state levels of mRNA of CYP11A, 3[beta]-hydroxysteroid dehydrogenase [Delta]5- > [Delta]4-isomerase (3[beta]HSD), and CYP17 are differentially regulated. There is high basal expression ...
Poly(organophosphazene)s and the sol–gel technique
(John Wiley & Sons, Ltd., 1999-05)
We report a survey of the utilization of phosphazene materials in combination with metal alkoxide precursors to form ceramics through the sol–gel technique. Silicon, titanium, zirconium and aluminum three-dimensional oxide ...
Pyrolytic conversion of precursors prepared in Ti(NMe 2 ) 4 –diamine systems
(John Wiley & Sons, Ltd., 1998-10)
Precursors possessing Ti–N bonds were prepared by the reactions between Ti(NMe 2 ) 4 and each of three diamines H 2 NCH 2 CH 2 NH 2 , Me(H)NCH 2 CH 2 N(H)Me, HN(CH 2 CH 2 ) 2 NH (Ti(NMe 2 ) 4 :diamine 14= 141:2), and were ...
Immunohistochemical localization of the mu opioid receptors
(Elsevier, 1994-11-10)
Using antibodies generated to the C-terminal 63 amino acids of the cloned rat mu receptor, the present study examines the distribution of the mu receptor-like immunoreactivity (li) in perfused rat brain sections. Generally, ...
Effects of serum and insulin-like growth factors on human neuroblastoma cell growth
(Elsevier, 1993-10-20)
Insulin-like growth factors (IGF-I and IGF-II) are mitogenic polypeptides expressed in both developing and adult tissues. To examine the effects of IGFs on neuronal growth, we used SH-SY5Y neuroblastoma cells as an in vitro ...