Results 31 to 40 of about 766,114 (261)

Role of CISS in the Radical Pair Model of Avian Magnetoreception

open access: yes, 2022
In this paper, we investigate the effect of chiral-induced spin selectivity (CISS) on the radical pair model of avian magnetoreception. We examine the impact of spin selectivity on the avian compass sensitivity. In this analysis, we also consider the dipolar and exchange interactions and observe their interplay with CISS.
Tiwari, Yash, Poonia, Vishvendra Singh
openaire   +2 more sources

Evaluation of Pre-operative Biopsy, Surgical Procedures and Oncologic Outcomes in Upper Tract Urothelial Carcinoma (UTUC)

open access: yesFrontiers in Surgery, 2021
Purpose: Discordance between pre-operative biopsy and final pathology for Upper Tract Urothelial Carcinoma (UTUC) is high and optimal management remains controversial. The aim of this study is to evaluate the accuracy of pre-operative biopsy, to identify
Florestan J. Koll   +9 more
doaj   +1 more source

Synthesis and Characterization of New Copolymer Based Cinnamyl Methacrylate Monomer: Determination of Monomer Reactivity Ratio and Statistical Sequence [PDF]

open access: yesMaterials Research, 2015
Radical-initiated copolymerization of Cinnamyl methacrylate (CMA) and Ethyl methacrylate (EMA) monomers were carried out at lower conversions (
Djahida Lerari
doaj   +1 more source

Genetic analysis of cryptochrome in insect magnetosensitivity

open access: yesFrontiers in Physiology, 2022
The earth’s magnetic field plays an important role in the spectacular migrations and navigational abilities of many higher animals, particularly birds. However, these organisms are not amenable to genetic analysis, unlike the model fruitfly, Drosophila ...
Charalambos P. Kyriacou, Ezio Rosato
doaj   +1 more source

Explicit stochastic modeling of termination chain length dependencies for all disparate radical pairs in single phase free radical induced grafting

open access: yesChemical Engineering Journal, 2022
In radical (co)polymerization and polymer recycling processes with branch and crosslinking formation easily more than two macroradical types exist, defining a variety of termination reaction possibilities. However, in many kinetic modeling studies the termination of each distinct radical pair is described by the same average (apparent) rate coefficient
Figueira, Freddy L.   +6 more
openaire   +2 more sources

Calculating Hyperfine Couplings in Large Ionic Crystals Containing Hundreds of QM Atoms: Subsystem DFT is the Key [PDF]

open access: yes, 2013
We present an application of the linear scaling Frozen Density Embedding (FDE) formulation of subsystem DFT to the calculation of isotropic hyperfine coupling constants (hfccs) of atoms belonging to a guanine radical cation embedded in a guanine ...
Close, David M.   +3 more
core   +1 more source

Weak magnetic fields modulate superoxide to control planarian regeneration

open access: yesFrontiers in Physics, 2023
Reactive oxygen species (ROS) signaling regulates cell behaviors and tissue growth in development, regeneration, and cancer. Commonly, ROS are modulated pharmacologically, which while effective comes with potential complications such as off-target ...
Luke J. Kinsey   +3 more
doaj   +1 more source

Magnetic properties of a helical spin chain with alternating isotropic and anisotropic spins: magnetization plateaus and finite entropy [PDF]

open access: yes, 2004
We study a model which could explain some of the unusual magnetic properties observed for the one-dimensional helical spin system Co(hfac)_2 NITPhOMe. One of the properties observed is that the magnetization shows plateaus near zero and near one-third of
Diptiman Sen   +3 more
core   +2 more sources

On the functional window of the avian compass

open access: yes, 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   +3 more
core   +1 more source

Electron spin relaxation can enhance the performance of a cryptochrome-based magnetic compass sensor

open access: yesNew Journal of Physics, 2016
The radical pair model of the avian magnetoreceptor relies on long-lived electron spin coherence. Dephasing, resulting from interactions of the spins with their fluctuating environment, is generally assumed to degrade the sensitivity of this compass to ...
Daniel R Kattnig   +3 more
doaj   +1 more source

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