Results 21 to 30 of about 887,867 (297)

Cytochromes P450, Oxygen, and Evolution [PDF]

The Scientific World JOURNAL, 2001
The role of the cytochrome P450 superfamily of heme-thiolate enzymes in oxidative metabolism is discussed in the context of evolutionary development. Concordances between the rise in atmospheric oxygen content, elaboration of the P450 phylogenetic tree and the accepted timescale for the emergence of animal phyla are described. The unique ability of the
David F.V. Lewis, Grainné Sheridan
openaire   +3 more sources

Evolution of Neutron-Star, Carbon-Oxygen White-Dwarf Binaries [PDF]

, 2000
At least one, but more likely two or more, eccentric neutron-star, carbon-oxygen white-dwarf binaries with an unrecycled pulsar have been observed.
Braun H., Brown G. E., C.‐H. Lee, G. E. Brown, H. A. Bethe, Habets G. M. B. H., Habets G. M. B. H., Lorimer D. R., Phinney E. S., Portegies Zwart S. F., S. F. Portegies Zwart, Shima E., Tauris T. M., van den Heuvel E. P. J., van den Heuvel E. P. J., van den Heuvel E. P. J., van Paradijs J., van Paradijs J., Wellstein S., Wijers R. A. M. J., Zuiderwijk E.   +20 more
core   +2 more sources

Full evolution of low-mass white dwarfs with helium and oxygen cores [PDF]

, 2007
We study the full evolution of low-mass white dwarfs with helium and oxygen cores. We revisit the age dichotomy observed in many white dwarf companions to millisecond pulsar on the basis of white dwarf configurations derived from binary evolution ...
Althaus, Leandro Gabriel, Chen, X., Han, Z., Panei, Jorge Alejandro   +3 more
core   +3 more sources

UV-B induced alteration of oxygen evolving reactions in pea thylakoid membranes as affected by scavengers of reactive oxygen species

Biologia Plantarum, 2014
The effect of UV-B irradiation at temperatures of 22 and 4 °C on flash induced oxygen yields, photochemical activity, and energy transfer in pea thylakoid membranes in the absence and presence of scavengers of reactive oxygen species (ROS) was studied ...
D. Lazarova, D. Stanoeva, A. Popova, D. Vasilev, M. Velitchkova   +4 more
doaj   +1 more source

A Molecular Tetrahedral Cobalt–Seleno-Based Complex as an Efficient Electrocatalyst for Water Splitting

Molecules, 2021
The cobalt–seleno-based coordination complex, [Co{(SePiPr2)2N}2], is reported with respect to its catalytic activity in oxygen evolution and hydrogen evolution reactions (OER and HER, respectively) in alkaline solutions.
Ibrahim Munkaila Abdullahi, Jahangir Masud, Polydoros-Chrisovalantis Ioannou, Eleftherios Ferentinos, Panayotis Kyritsis, Manashi Nath   +5 more
doaj   +1 more source

Recent development of hydrogen evolution, oxygen evolution and oxygen reduction reaction [PDF]

SCIENTIA SINICA Chimica, 2018
In the 21st century, human beings have to face two serious problems, energy crisis and environmental pollution. Therefore, seeking cheap, durable and efficient overall water splitting electrocatalysts which can be comparable to those of state-of-the-art noble metal catalysts is our ultimate goal.
Yaxiao Guo, Changshuai Shang, Jing Li, Erkang Wang   +3 more
openaire   +1 more source

Abundance evolution of intermediate mass elements (C to Zn) in the Milky Way halo and disk [PDF]

, 2000
We present a comprehensive study of the evolution of the abundances of intermediate mass elements, from C to Zn, in the Milky Way halo and in the local disk. We use a consistent model to describe the evolution of those two galactic subsystems.
Goswami, Aruna, Prantzos, Nikos
core   +2 more sources

Simple method for isolation of oxygen evolving photosystem 2 core complex free of cytochrome f contamination

Biologia Plantarum, 2010
This communication presents a simple method for isolation of oxygen evolving photosystem 2 (PS 2) core complex by solubilisation of PS 2 membranes with the nonionic detergent octyl-β-D-thioglucopyranoside (OTG).
R. K. Mishra
doaj   +1 more source

Co3O4 Nanocrystals on Graphene as a Synergistic Catalyst for Oxygen Reduction Reaction

, 2011
Catalysts for oxygen reduction and evolution reactions are at the heart of key renewable energy technologies including fuel cells and water splitting.
AA Gewirth, AJ Bard, AJ Bard, AJ Esswein, C Nethravathi, CWB Bezerra, D Long, DG Nocera, F Bidault, FA Cotton, G Chen, H Meng, H Wang, H Wang, Hailiang Wang, HL Wang, Hongjie Dai, JG Zhou, JG Zhou, Jian Wang, Jigang Zhou, JS Spendelow, K Gong, KJJ Mayrhofer, L Qu, L-S Zhang, M De Koninck, M Lefevre, M Piana, M Winter, MW Kanan, NS Lewis, R Bashyam, R Liu, S Escribano, S Trasatti, TC Rojas, Tom Regier, TS Olson, UA Paulus, V Mehta, W Jin, Y Dong, Y Gorlin, Y Li, Yanguang Li, Yongye Liang, YY Liang   +47 more
core   +1 more source

Insights Into Highly Improved Solar-Driven Photocatalytic Oxygen Evolution Over Integrated Ag3PO4/MoS2 Heterostructures

Frontiers in Chemistry, 2018
Oxygen evolution has been considered as the rate-determining step in photocatalytic water splitting due to its sluggish four-electron half-reaction rate, the development of oxygen-evolving photocatalysts with well-defined morphologies and superior ...
Xingkai Cui, Xiaofei Yang, Xiaofei Yang, Xiaofei Yang, Xiaozhai Xian, Lin Tian, Hua Tang, Qinqin Liu   +7 more
doaj   +1 more source