Results 51 to 60 of about 532,243 (387)

Trophic interactions of meso- and macrozooplankton and fish in the Iceland Sea as evaluated by fatty acid and stable isotope analysis [PDF]

open access: yes, 2012
A trophic study was carried out in August of 2007 and 2008 on the pelagic ecosystem in the Subarctic Iceland Sea. Carbon and nitrogen stable isotopes and fatty acid biomarkers were used to study trophic linkages and the trophic ecology of the most ...
Falk Petersen, Stig   +2 more
core   +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   +1 more source

Synthesis and Biological activity of 4-(4,6-Disubstituted-pyrimidin-2-yloxy)phenoxy Acetates

open access: yesMolecules, 2010
Ten novel 4-(4,6-dimethoxypyrimidin-2-yloxy)phenoxy acetates and 4-(4,6-dimethylpyrimidin-2-yloxy)phenoxy acetates were synthesized with hydroquinone, 2-methylsulfonyl-4,6-disubstituted-pyrimidine and chloroacetic ester as starting materials.
Xinhuan Teng   +3 more
doaj   +1 more source

Divergent Syntheses of Isoquinolines and Indolo[1,2-a]quinazolines by Copper-Catalyzed Cascade Annulation from 2-Haloaryloxime Acetates with Active Methylene Compounds and Indoles.

open access: yesJournal of Organic Chemistry, 2016
A convenient and reliable method for the direct construction of isoquinolines is described. A series of isoquinoline derivatives were synthesized, with high chemo- and regioselectivities, via the copper-catalyzed cascade reaction of 2-haloaryloxime ...
Huanfeng Jiang   +3 more
semanticscholar   +1 more source

C‐mannosylation promotes ADAMTS1 activation and secretion in human testicular germ cell tumor NEC8 cells

open access: yesFEBS Letters, EarlyView.
C‐mannosylation is a unique form of protein glycosylation. In this study, we demonstrated that ADAMTS1 is C‐mannosylated at Trp562 and Trp565 in human testicular germ cell tumor NEC8 cells. We found that C‐mannosylation of ADAMTS1 is essential for its secretion, processing, enzymatic activity, and ability to promote vasculogenic mimicry. These findings
Takato Kobayashi   +5 more
wiley   +1 more source

Silylation of Carbohydrate Syrups [PDF]

open access: yes, 1979
Introduction Carbohydrates are usually difficult to analyze in solutions. Gas chromatography provides a suitable means for analysis. However most carbohydrate compounds are not volatile enough for use by this method.
Gorwitz, Mark
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

Microbial exopolysaccharide production by polyextremophiles in the adaptation to multiple extremes

open access: yesFEBS Letters, EarlyView.
Polyextremophiles are microorganisms that endure multiple extreme conditions by various adaptation strategies that also include the production of exopolysaccharides (EPSs). This review provides an integrated perspective on EPS biosynthesis, function, and regulation in these organisms, emphasizing their critical role in survival and highlighting their ...
Tracey M Gloster, Ebru Toksoy Öner
wiley   +1 more source

Effect of dipole polarizability on positron binding by strongly polar molecules [PDF]

open access: yes, 2015
A model for positron binding to polar molecules is considered by combining the dipole potential outside the molecule with a strongly repulsive core of a given radius.
Gribakin, G. F., Swann, A. R.
core   +2 more sources

Reasoned opinion on the modification of the existing MRL for guazatine in citrus fruits

open access: yesEFSA Journal, 2014
In accordance with Article 6 of Regulation (EC) No 396/2005, the United Kingdom, hereafter referred to as the evaluating Member State (EMS), received an application from Exponent International Ltd., on behalf of ICA International Chemicals (PTY) Ltd., to
European Food Safety Authority
doaj   +1 more source

Home - About - Disclaimer - Privacy