Results 51 to 60 of about 207,495 (287)

Biomimetic Ketone Reduction by Disulfide Radical Anion

Molecules, 2021
The conversion of ribonucleosides to 2′-deoxyribonucleosides is catalyzed by ribonucleoside reductase enzymes in nature. One of the key steps in this complex radical mechanism is the reduction of the 3′-ketodeoxynucleotide by a pair of cysteine residues,
Sebastian Barata-Vallejo, Konrad Skotnicki, Carla Ferreri, Bronislaw Marciniak, Krzysztof Bobrowski, Chryssostomos Chatgilialoglu   +5 more
doaj   +1 more source

On the functional window of the avian compass

, 2017
The functional window is an experimentally observed property of the avian compass that refers to its selectivity around the geomagnetic field strength.
Ganguly, Swaroop, Kondabagil, Kiran, Poonia, Vishvendra Singh, Saha, Dipankar   +3 more
core   +1 more source

The magnetite-based receptors in the beak of birds and their role in avian navigation [PDF]

, 2012
Iron-rich structures have been described in the beak of homing pigeons, chickens and several species of migratory birds and interpreted as magnetoreceptors.
Wiltschko, Roswitha, Wiltschko, Wolfgang
core   +1 more source

Hydrogen-bond switching through a radical pair mechanism in a flavin-binding photoreceptor [PDF]

Proceedings of the National Academy of Sciences, 2006
BLUF (blue light sensing using FAD) domains constitute a recently discovered class of photoreceptor proteins found in bacteria and eukaryotic algae, where they control a range of physiological responses including photosynthesis gene expression, photophobia, and negative phototaxis.
Gauden, M.L., van Stokkum, I.H.M., Key, J.M., Luhrs, D.C., van Grondelle, R., Hegemann, P., Kennis, J.T.M.   +6 more
openaire   +2 more sources

Quantum dynamics of the avian compass

, 2014
The ability of migratory birds to orient relative to the Earth's magnetic field is believed to involve a coherent superposition of two spin states of a radical electron pair. However, the mechanism by which this coherence can be maintained in the face of
C. D. Treiber, G. Woodgate, K. Blum, M. A. Schlosshauer, R. Muheim, R. Muheim, Z. Walters, Zachary B. Walters   +7 more
core   +1 more source

Applications of the Conceptual Density Functional Theory Indices to Organic Chemistry Reactivity [PDF]

, 2016
Indexación: Web of ScienceTheoretical reactivity indices based on the conceptual Density Functional Theory (DFT) have become a powerful tool for the semiquantitative study of organic reactivity.
Domingo, Luis R., Pérez, Patricia, Ríos-Gutiérrez, Mar   +2 more
core   +2 more sources

Environment-induced anisotropy and sensitivity of the radical pair mechanism in the avian compass [PDF]

Physical Review E, 2015
7 pages, 6 figures.
Carrillo, Alejandro, Cornelio, Marcio F., de Oliveira, Marcos C.   +2 more
openaire   +3 more sources

Magnetosensitivity of tightly bound radical pairs in cryptochrome is enabled by the quantum Zeno effect

Nature Communications
The radical pair mechanism accounts for the magnetic field sensitivity of a large class of chemical reactions and is hypothesised to underpin numerous magnetosensitive traits in biology, including the avian compass.
Matt C. J. Denton, Luke D. Smith, Wenhao Xu, Jodeci Pugsley, Amelia Toghill, Daniel R. Kattnig   +5 more
doaj   +1 more source

Metal-Free Dihydrogen Oxidation by a Borenium Cation:A Combined Electrochemical/Frustrated Lewis Pair Approach [PDF]

, 2014
In order to use H2 as a clean source of electricity, prohibitively rare and expensive precious metal electrocatalysts, such as Pt, are often used to overcome the large oxidative voltage required to convert H2 into 2 H+ and 2 e−. Herein, we report a metal-
Bard, Chiu, Clark, Clark, Eisenberger, Erker, Farrell, Jutzi, Lawrence, Lawrence, Matsumoto, Matsumoto, Rablen, Stephan, Ueng, Welch   +15 more
core   +1 more source

Personalized Selumetinib Dosing in Pediatric Neurofibromatosis Type 1: Insights From a Pilot Therapeutic Drug Monitoring Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Objective To evaluate selumetinib exposure using therapeutic drug monitoring (TDM) in pediatric patients with neurofibromatosis type 1 (NF1) and plexiform neurofibromas (PN), assess interpatient pharmacokinetic variability, and explore the relationship between drug exposure, clinical response, and adverse effects.
Janka Kovács, Zoltán Köllő, Balázs Gellért Karvaly, Mahmoud Obeidat, Rita Nagy, Péter Hegyi, Brigitta Teutsch, Eszter Tuboly, Miklós Garami   +8 more
wiley   +1 more source