Results 61 to 70 of about 36,700 (277)

Activation of Cryptochrome 4 from Atlantic Herring

Biology
Marine fish migrate long distances up to hundreds or even thousands of kilometers for various reasons that include seasonal dependencies, feeding, or reproduction. The ability to perceive the geomagnetic field, called magnetoreception, is one of the many
Anders Frederiksen, Mandus Aldag, Ilia A. Solov’yov, Luca Gerhards   +3 more
doaj   +1 more source

Monte-Carlo wavefunction approach for the spin dynamics of recombining radicals

New Journal of Physics, 2020
We adapt the Monte-Carlo wavefunction (MCWF) approach to treat the open-system spin dynamics of radical pairs subject to spin-selective recombination reactions.
Robert H Keens, Daniel R Kattnig
doaj   +1 more source

COCKROACHES USE RADICAL PAIR MECHANISM TO DETECT MAGNETISM [PDF]

Journal of Experimental Biology, 2009
![Figure][1] Restricted to our own suite of five senses, it is sometimes hard to imagine what the world is like for creatures that detect phenomena beyond our own capabilities. How many birds and insects negotiate the world by sensing the magnetic field that bathes our planet is a ...
openaire   +1 more source

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

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

Avian ultraviolet/violet cones identified as probable magnetoreceptors

, 2011
Background: The Radical-Pair-Model postulates that the reception of magnetic compass directions in birds is based on spin-chemical reactions in specialized photopigments in the eye, with cryptochromes discussed as candidate molecules.
Gross, J., Peichl, Leo, Fleissner, Gerta, Bischof, H., Fleissner, G., Groß, Julia Christina, Wiltschko, Roswitha, Denzau, Susanne, Fleissner, Ge., Christine Niessner, Wiltschko, Wolfgang (Prof. Dr.), Denzau, S., Peichl Leo, Wiltschko Roswitha, Wiltschko, R., Bischof Hans-Joachim, Peichl, L., Bischof, H. J., Wiltschko, Wolfgang, Fleissner Gerta, Wiltschko, W., Leo Peichl, Gross Julia Christina, Wolfgang Wiltschko, Nießner Christine, Denzau Susanne, Nießner, Christine, Susanne Denzau, Roswitha Wiltschko, Gerta Fleissner, Julia Christina Gross, Niessner, C., Hans-Joachim Bischof, Wiltschko Wolfgang, Bischof, Hans-Joachim   +34 more
core   +1 more source

Efficacy and Safety Analysis of Roxarestat in Regulating Renal Anemia in Patients on Maintenance Hemodialysis

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Objective To compare the efficacy and safety of roxarestat versus recombinant human erythropoietin (rhEPO) in the management of renal anemia in patients undergoing maintenance hemodialysis. Methods This was a prospective, open‐label, randomized controlled trial.
Lingling Chen, Junjie Zhu, Qiaonan Ge
wiley   +1 more source

Therapeutic Apheresis for Intravenous Methylprednisolone‐Refractory Neuromyelitis Optica Spectrum Disorder: Clinical and Radiological Outcomes in a Single‐Center Case Series

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Neuromyelitis optica spectrum disorder (NMOSD) is a relapsing autoimmune disease of the central nervous system. High‐dose intravenous methylprednisolone (IVMP) is the standard first‐line therapy for acute attacks, although some patients remain refractory.
Wataru Horiguchi, Daisuke Katagiri, Takeyuki Watadani, Shunichi Matsuda, Hiroshi Kaneko, Noritoshi Arai   +5 more
wiley   +1 more source

Essential elements of radical pair magnetosensitivity in Drosophila

, 2023
Many animals use Earth’s magnetic field (also known as the geomagnetic field) for navigation 1. The favoured mechanism for magnetosensitivity involves a blue-light-activated electron-transfer reaction between flavin adenine dinucleotide (FAD) and a chain
Fedele, Giorgio, Baines, Richard A.; id_orcid, Munro, Anna L., Patel, Sanjai, Bradlaugh, Adam A., Rosato, Ezio, Kyriacou, Charalambos P., Hansen, Celia Napier, Jones, Alex R., Hares, John M.   +9 more
core   +3 more sources

Numerical tests of magnetoreception models assisted with behavioral experiments on American cockroaches

Scientific Reports, 2021
Many animals display sensitivity to external magnetic field, but it is only in the simplest organisms that the sensing mechanism is understood. Here we report on behavioural experiments where American cockroaches (Periplaneta americana) were subjected to
Kai Sheng Lee, Rainer Dumke, Tomasz Paterek   +2 more
doaj   +1 more source