Now showing items 21-30 of 148
Maximizing the adoption of fixed number portability within the EU: An empirical analysis
Number portability (NP) is considered by the European Commission as a key measure for promoting competition within the telecom sector especially regarding network access infrastructure. However, NP requires several ...
Broadband penetration and broadband competition: evidence and analysis in the EU market
Purpose – To examine broadband competition and broadband penetration in a set of countries that employ the same regulation framework. To define the policy and strategy required to promote broadband in weak markets that ...
(Kluwer Law International, 2006)
The S1YZ• Metalloradical EPR Signal of Photosystem II Contains Two Distinct Components That Advance Respectively to the Multiline and g = 4.1 Conformations of S2
(American Chemical Society, 2007)
The S2 state of the oxygen-evolving complex (OEC) of photosystem II is heterogeneous, exhibiting two main EPR spectral forms, the multiline and the g = 4.1 signal. It is not clearly established whether this heterogeneity ...
The reduced S−1 and S−2 oxidation states of the O2 -evolving complex of photosystem II: An EPR microwave power saturation study
(Springer Netherlands, 2009-12)
Progressive microwave power saturation (P1/2) measurements have been performed on the tyrosine D radical (YD •) of photosystem II (PSII) in order to examine its relaxation enhancement by the oxygen-evolving complex (OEC) ...
Near-IR Irradiation of the S2 State of the Water Oxidizing Complex of Photosystem II at Liquid Helium Temperatures Produces the Metalloradical Intermediate Attributed to S1YZ•
(American Chemical Society, 2003)
Near-IR (NIR) excitation at liquid He temperatures of photosystem II (PSII) membranes from the cyanobacterium Synechococcus vulcanus or from spinach poised in the S2 state results in the production of a g = 2.035 EPR ...
Monitoring Mobility in the Early Steps of Unfolding: The Case of Oxidized Cytochrome b5 in the Presence of 2 M Guanidinium Chloride
(American Chemical Society, 2000)
A Model-Free analysis of the 15N relaxation properties of oxidized cytochrome b5, a heme-containing electron-transfer protein, has been performed in 2 M guanidinium chloride (GdmCl), i.e., just before the heme is released ...
The S1YZ˙ metalloradical intermediate in photosystem II: an X- and W-band EPR study
(Royal Society of Chemistry, 2004)
Visible light illumination at liquid He temperatures of photosystem II (PSII) membranes poised in the S1-state, results in the production of a metalloradical signal with resonances at g = 2.035 and g [similar] 2.0 at ...
Solution structure of the B form of oxidized rat microsomal cytochrome b5 and backbone dynamics via 15N rotating-frame NMR-relaxation measurements: biological implications
Cytochrome b5 in solution has two isomers (A and B) differing by a 1808 rotation of the protoporphyrin IX plane around the axis defined by the a and g meso protons. Homonuclear and heteronuclear NMR spectroscopy has ...
An Investigation of the Tidally‐Driven Period Changes in Detached Binary Systems through O‐C Time‐Series Analysis
(American Institute of Physics, 2005)
Detached binary systems are subjected to a variety of physical mechanisms which are able to change their period in a continuous way and in broad band of timescales. Assuming that these changes should be detectable in O‐C ...