Results 71 to 80 of about 135,807 (258)

A method for the rapid qualitative and quantitative analysis of 4,4-dimethyl sterols

open access: yesJournal of Lipid Research, 1973
A simple and relatively rapid technique has been developed for the separation of several 4,4-dimethyl steryl acetates, some of which contain sterically hindered nuclear double bonds.
G.F. Gibbons   +2 more
doaj  

\u3cem\u3eRhizobium etli\u3c/em\u3e CE3 Bacteroid Lipopolysaccharides Are Structurally Similar but Not Identical to Those Produced by Cultured CE3 Bacteria [PDF]

open access: yes, 2007
Rhizobium etli CE3 bacteroids were isolated from Phaseolus vulgaris root nodules. The lipopolysaccharide (LPS) from the bacteroids was purified and compared with the LPS from laboratory-cultured R.
Carlson, Russell W.   +4 more
core   +1 more source

Role of ethylene on various ripening pathways and on the development of sensory quality of Charentais cantaloupe melons [PDF]

open access: yes, 2002
Charentais melons (Cucumis melo L., var cantalupensis Naud.) in which ethylene biosynthesis has been suppressed by an antisense ACC oxidase gene have been used to better understand the role of ethylene in the regulation of the ripening process of ...
Ambid, Christian   +9 more
core   +1 more source

Tramesan, a novel polysaccharide from trametes versicolor. structural characterization and biological effects [PDF]

open access: yes, 2017
Mushrooms represent a formidable source of bioactive compounds. Some of these may be considered as biological response modifiers; these include compounds with a specific biological function: antibiotics (e.g.
Scarpari, Marzia   +14 more
core   +3 more sources

Robotic Lepidoptery: Structural Characterization of (mostly) Unexpected Palladium Complexes Obtained from High-Throughput Catalyst Screening [PDF]

open access: yes, 2009
In the course of a high-throughput search for optimal combinations of bidentate ligands with Pd(II) carboxylates to generate oxidation catalysts, we obtained and crystallographically characterized a number of crystalline products. While some combinations
Bercaw, John E.   +7 more
core   +1 more source

Conversion from acetate dialysate to citrate dialysate in a central delivery system for maintenance hemodialysis patients

open access: yesKidney Research and Clinical Practice, 2019
Background : The objective of this study was to compare the impact of citrate dialysate (CD) and standard acetate dialysate (AD) in hemodialysis by central delivery system (CDS) on heparin demand, and clinical parameters.
Eun ji Park   +6 more
doaj   +1 more source

The differential migration of sterol acetates on silica gels and its application to the fractionation of sterol mixtures*

open access: yesJournal of Lipid Research, 1962
The retention volumes of 12 sterol acetates relative to cholesteryl acetate were determined on four well-characterized silica gels of different body structure.
Peter D. Klein, Patricia A. Szczepanik
doaj  

Electroactive biofilms: new means for electrochemistry [PDF]

open access: yes, 2007
This work demonstrates that electrochemical reactions can be catalysed by the natural biofilms that form on electrode surfaces dipping into drinking water or compost.
A. Bergel   +46 more
core   +1 more source

Metal-containing ceramic nanocomposites synthesized from metal acetates and polysilazane

open access: yesOpen Ceramics, 2020
Metal-containing (Mn, Fe, Co, Cu, Zn and Ag) polysilazane precursors are synthesized via one-step chemical reaction of metal acetates with poly(vinyl)silazane (Durazane 1800) at room temperature under argon atmosphere.
Jun Wang   +8 more
doaj  

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