Now showing items 31-40 of 57
Metanephric rat-mouse chimeras to study cell lineage of the nephron
(John Wiley & Sons, Inc., 1999)
The nephron is derived from the ureteric bud and metanephric mesenchyme and develops into a complex epithelial structure with a wide variety of phenotypes along its length. This segmental variation in expression of molecules ...
Empirical validation of a two-state kinetic model for the B-Z transition of double-stranded poly[d(G-m 5 C)]
(Springer-Verlag; Society of Biological Inorganic Chemistry, 1999-12)
C)] in terms of the salt concentration, the absolute temperature, and the cooperativity index. The validity of the formula was tested using circular dichroism spectroscopy after variation of the type of salt (NaCl, MgCl 2 ...
Siloxane network formation from the Si 8 O 20 8− silicate species and dimethyldichlorosilane
(John Wiley & Sons, Ltd., 1999-04)
Organic-silica hybrids were synthesized from the Si 8 O 20 8− silicate anion by the reaction with an excess of dimethyldichlorosilane. The structure of the hybrids has been found to comprise the Si 8 O 20 8− structure ...
Synthesis and applications of TEOS/PDMS hybrid material by the sol–gel process
(John Wiley & Sons, Ltd., 1999-05)
An organically modified silicate, ormosil, was synthesized with an inorganic precursor, (tetraethoxysilane, TEOS) and an organic precursor [poly(dimethylsiloane), PDMS] through sol–gel chemistry. The bonding characteristics ...
Oral self-administration of ethanol, phencyclidine, methadone, pentobarbital and quinine in rhesus monkeys
(Springer-Verlag; Springer-Verlag Berlin Heidelberg, 1999-11)
Rationale: Simultaneous and sequential drug use among clinical populations is the norm, whereas the pattern of self-administration of multiple drugs among non-human primate populations has not been thoroughly explored. ...
The reaction of H 8 Si 8 O 12 with a chromium oxide surface: a model for stainless steel surface modification
(John Wiley & Sons, Ltd., 1999-04)
Many metal alloys are susceptible to corrosion, particularly after processing steps such as welding. Chemical vapor deposition (CVD) is an effective way to modify metal surfaces and impart specific physical and chemical ...
Reinforcing and discriminative stimulus effects of the neuroactive steroids pregnanolone and Co 8-7071 in rhesus monkeys
(Springer-Verlag; Springer-Verlag Berlin Heidelberg, 1999-07)
Rationale and Objectives : The present study was designed to assess possible abuse-related effects of the endogenous neuroactive steroid pregnanolone (3α-hydroxy-5β-pregnan-20-one) and the orally bioavailable, water-soluble ...
Systemic effects of E-2078, a stabilized dynorphin A(1–8) analog, in rhesus monkeys
(Springer-Verlag; Springer-Verlag Berlin Heidelberg, 1999-04)
Rationale : E-2078 ([ N -methyl-Tyr 1 , N -methyl-Arg 7 , d -Leu 8 ] dynorphin A(1–8) ethylamide) is a dynorphin A(1–8) analog with a reduced tendency to be biotransformed, when compared to the unmodified opioid peptide. ...
Distribution of Mahogany/Attractin mRNA in the rat central nervous system
(Wiley Periodicals, Inc., 1999-11-26)
M x –O y –Si z bonding models for silica-supported Ziegler–Natta catalysts
(John Wiley & Sons, Ltd., 1999-04)
Three reactants, polyhedral oligosilsesquioxanes (POSS) (c-C 6 H 11 ) 7 (Si 7 O 9 )(OH) 3 (1), butylethylmagnesium (2) and titanium tetrachloride TiCl 4 (3), react in three different ways according to the order of addition ...