Now showing items 41-50 of 116
Synthese und Charakterisierung eines steifen Dendrimers mit hohem Molekulargewicht Stiff Dendritic Macromolecules, 2. Mitteilung. Diese Arbeit wurde von der National Science Foundation (Grant DMR-9212054), dem NSF Young Investigator Program und der 3M Compagny (Award Program for Untenured Faculty) gefÖrdert. -1. Mitteilung: [7].
(WILEY-VCH Verlag GmbH, 1993-02)
No Abstract.
Axial selectivity of 1,2-nucleophilic additions to 2-(Alkylidene)cyclohexanones: Is it higher than that of 2-cyclohexenones?
(Elsevier, 1993-04-23)
2-(Alkylidene)cyclohexanones embedded in steroid systems underwent 1,2-addition of both small and sterically demanding nucleophiles to yield exclusively the axial adducts, supporting the suggestion that 2-(alkylidene)cyc ...
The preparation of (Z)-2-lithio-ortho-styryllithium via an ortho-directed lithiation
(Elsevier, 1993-11-30)
Lithiation of (Z)-2-lithiostyrene with t-butyllithium/TMEDA pentane led directly to (Z)-2-lithio-ortho-styryllithium. Subsequent treatment of this dilithio compound with difunctional electrophiles allowed the preparation ...
Potentiometric detection in ion chromatography using multi-ionophore membrane electrodes
(Elsevier, 1993-10-01)
The incorporation of ionophores selective for ammonium, potassium, sodium and calcium ions in an appropriate proportion into a plasticized poly(vinyl chloride) membrane provides a potentiometric membrane sensor with similar ...
Purification and Characterization of a Mannose-Specific Lectin from Shallot (Allium ascalonicum) Bulbs
(Elsevier, 1993-11)
A new mannose-binding lectin was isolated from shallot (Allium ascalonicum) bulbs by affinity chromatography on an immobilized D-mannose column. The lectin (A. ascojonicum agglutinin, AAA) appeared homogeneous by polyacrylamide ...
Cultured Ehrlich Ascites Tumor Cells Show Increased N-Linked [alpha]2,6-Sialytransferase Activity
(Elsevier, 1993-06)
Ehrlich ascites tumor cells (EAT cells) are routinely grown in the peritoneal cavity of mice. These cells, EAT-wt, grow in suspension and exhibit a high level of [alpha]-2,3-O-linked sialyltransferase activity with ...
Localization of the ~12 kDa Mr discrepancy in gel migration of the mouse glucocorticoid receptor to the major phosphorylated cyanogen bromide fragment in the transactivating domain
(Elsevier, 1993-12)
The intact wild-type mouse glucocorticoid receptor has a theoretical molecular weight of ~86 kDa based on amino acid sequence, but on SDS-polyacrylamide gel electrophoresis it migrates as a protein of ~98 kDa. It is not ...