Results 71 to 80 of about 66,085 (162)

Development of highly selective ligands for separations of actinides from lanthanides in the nuclear fuel cycle [PDF]

open access: yes, 2011
This account summarizes recent work by us and others on the development of ligands for the separation of actinides from lanthanides contained in nuclear waste streams in the context of a future European strategy for nuclear waste management. The current
Harwood, Laurence   +2 more
core   +1 more source

Vegetable oil as fat replacer inhibits formation of heterocyclic amines and 2 polycyclic aromatic hydrocarbons in reduced fat pork patties [PDF]

open access: yes, 2017
Formation of heterocyclic amines (HCAs) and polycyclic aromatic hydrocarbons 9 (PAHs) was examined to evaluate the impact of using vegetable oil as fat 10 replacement on carcinogen formation in meat product.
Cheng, Qiaofen   +2 more
core   +1 more source

O-H...O, C-H...O and C-H...[pi]arene intermolecular interactions in (2S)-2-(1-oxo-1H-2,3-dihydroisoindol-2-yl)pentanoic acid and (2S)-3-methyl-2-(1-oxo-1H-2,3-dihydroisoindol-2-yl)butanoic acid [PDF]

open access: yes, 2000
In the first of the title compounds, (2S)-2-(1-oxo-1H-2,3-dihydroisoindol-2-yl)pentanoic acid, C₁₃H₁₅NO₃, prepared from L-norvaline, a hydrogen-bonded network is formed in the solid state through O-H...O=C, C-H...O=C and C-H...πarene intermolecular ...
Brady, Fiona, Gallagher, John F.
core   +1 more source

Nitrogenous compounds characterized in the deterrent skin extract of migratory adult sea lamprey from the Great Lakes region.

open access: yesPLoS ONE, 2019
The sea lamprey (Petromzons marinus) is a devastating invasive species that represents a significant impediment to restoration of the Laurentian Great Lakes.
Amila A Dissanayake   +2 more
doaj   +1 more source

Genes of different catabolic pathways are coordinately regulated by Dal81 in Saccharomyces cerevisiae [PDF]

open access: yes, 2015
Yeast can use a wide variety of nitrogen compounds. However, the ability to synthesize enzymes and permeases for catabolism of poor nitrogen sources is limited in the presence of a rich one.
Bermudez Moretti, Mariana   +2 more
core   +3 more sources

An update on the synthesis and reactivity of spiro-fused β-lactams [PDF]

open access: yes, 2018
Beta-Lactam ring-containing compounds play a pivotal role in drug design and synthetic chemistry. Spirocyclic beta-lactams, representing an important beta-lactam subclass, have recently attracted considerable interest with respect to new synthetic ...
D'hooghe, Matthias, Dao Thi, Hang
core   +1 more source

Flexible Enantioselectivity of Tryptophanase Attributable to Benzene Ring in Heterocyclic Moiety of D-Tryptophan

open access: yesLife, 2012
The invariance principle of enzyme enantioselectivity must be absolute because it is absolutely essential to the homochiral biological world. Most enzymes are strictly enantioselective, and tryptophanase is one of the enzymes with extreme absolute ...
Akihiko Shimada, Haruka Ozaki
doaj   +1 more source

Grain legumes and human health [PDF]

open access: yes, 2009
Since early civilisation in different continents, grain legumes have been a part of balanced diets together with cereals. In general the seeds from those two plant families give together a good source of essential amino acids and may have given an ...
Enneking, Dirk   +4 more
core   +1 more source

Pd(II)/N,N′-Disulfonyl bisimidazoline-catalyzed asymmetric arylation of isoquinoline-1,3,4-trione-derived ketimines

open access: yesGreen Synthesis and Catalysis
A palladium/chiral N,N′-disulfonyl bisimidazoline (Bim)-catalyzed asymmetric addition of arylboronic acids to isoquinoline-1,3,4-trione-derived ketimines is reported, leading to the generation of a series of functionalized isoquinoline-1,3(2H,4H)-diones ...
An-Qi Miao   +6 more
doaj   +1 more source

Novel "green" catalysts for controlled ring-opening polymerization of lactide [PDF]

open access: yes, 2010
Syntéza polylaktidu (PLA) polymerací za otevření kruhu cyklického monomeru (ROP) může být uskutečněna různými způsoby. Literatura uvádí více než 100 katalytických systémů, jejichž pomocí lze polylaktid a jiné biodegradabilní alifatické polyestery získat.
Surman, František
core  

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