Results 91 to 100 of about 2,773,244 (210)

Coherent vibrations of submicron spherical gold shells in a photonic crystal

open access: yes, 2007
Coherent acoustic radial oscillations of thin spherical gold shells of submicron diameter excited by an ultrashort optical pulse are observed in the form of pronounced modulations of the transient reflectivity on a subnanosecond time scale.
A. van Blaaderen   +8 more
core   +1 more source

Gold(I)-catalyzed domino cyclization for the synthesis of polyaromatic heterocycles

open access: yesBeilstein Journal of Organic Chemistry, 2013
Gold(I) complexes have emerged as powerful and useful catalysts for the formation of new C–C, C–O and C–N bonds. Taking advantage of the specificity of [IPrAuNCMe][SbF6] complexes to favor the 5-exo-dig cyclization over the 6-endo-dig pathway, we report ...
Mathieu Morin   +2 more
doaj   +1 more source

Depletion of β1,6-N-acetylglucosaminyltransferase reduces E-selectin binding capacity and migratory potential of human gastrointestinal adenocarcinoma cells

open access: yesNeoplasia: An International Journal for Oncology Research
The commonly altered glycosylation of tumor cells is a hallmark of tumor progression and metastasis formation. One prominent example is the interaction of sialylated glycans at the tumor cell surface with endothelial (E)-selectin as an early event of an ...
Lisa Staffeldt   +8 more
doaj   +1 more source

Synthesis and characterization of amphiphilic triazole ligand and its complex for potential application in phosphorescent temperature sensor materials [PDF]

open access: yes, 2015
Phosphorescent materials have attracted much attention due to their promising applications in sensors, display, and optical imaging. Extensive studies have reported on trinuclear gold (I) complexes such as imidazolate, pyrazolate and carbeniete ; however,
Endud, Salasiah   +3 more
core  

Temporal expression normalisation in natural language texts [PDF]

open access: yes, 2012
Automatic annotation of temporal expressions is a research challenge of great interest in the field of information extraction. In this report, I describe a novel rule-based architecture, built on top of a pre-existing system, which is able to normalise ...
Filannino, Michele
core   +1 more source

Preliminary Biological Assessments of Some Algae Basis Biomaterials

open access: yesJournal of Marine Science and Engineering
Four types of algae—Porphyra umbilicalis, Undaria pinnatifida, Cystoseira barbata, and Chlorella sp.—were used to obtain crude bioproducts enriched in polysaccharides (four bioproducts) and to create formulations enriched with gold cations (four ...
Toader Marian   +6 more
doaj   +1 more source

Crystal structures of seven mixed-valence gold compounds of the form [(R1R2R3PE)2AuI]+[AuIIIX4]− (R = tert-butyl or isopropyl, E = S or Se, and X = Cl or Br)

open access: yesActa Crystallographica Section E: Crystallographic Communications
During our studies of the oxidation of gold(I) complexes of trialkylphosphane chalcogenides, general formula R1R2R3PEAuX, (R = tert-butyl or isopropyl, E = S or Se, X = Cl or Br) with PhICl2 or elemental bromine, we have isolated a set of seven mixed ...
Daniel Upmann   +3 more
doaj   +1 more source

X-ray Crystal Structures and the Facile Oxidative (Au−C) Cleavage of the Dimethylaurate(I) and Tetramethylaurate(III) Homologues [PDF]

open access: yes, 1999
Dimethylaurate(I) has been prepared as the crystalline tetrabutylammonium salt for comparison with the known tetramethylaurate(III) analogue. The linear structure of dimethylaurate(I) and the square-planar structure of tetramethylaurate(III) have both ...
Kochi, Jay K.   +2 more
core   +1 more source

International Reserves Crises, Monetary Integration and the Payments System during the International Gold Standard [PDF]

open access: yes
I model an international payments system with a financial center and periphery to reproduce various aspects of the International Gold Standard. This period was characterized by frequent crises associated with scarce stocks of reserves, high short-term ...
Paula Hernandez-Verme
core  

A Myth of "the Keynesian before Keynes:" Low Interest Rate Policy in the Early 1930s in Japan [PDF]

open access: yes
Departing from the gold standard was the necessary condition for early recovery from the Great Depression in 1930s (Eichengreen and Sachs[1985]). Then, was it the sufficient condition for an independent monetary policy?
Masato Shizume
core  

Home - About - Disclaimer - Privacy