Results 41 to 50 of about 269,420 (275)

Quantum Information Processing in the Radical-Pair Mechanism: Haberkorn theory violates the Ozawa entropy bound

, 2017
Radical-ion-pair reactions, central for understanding the avian magnetic compass and spin transport in photosynthetic reaction centers, were recently shown to be a fruitful paradigm of the new synthesis of quantum information science with biological ...
Kominis, I. K., Mouloudakis, K.
core   +1 more source

Circadian system coordination: new perspectives beyond classical models

Frontiers in Physiology
BackgroundThis review examines novel interaction mechanisms contributing to the robustness of circadian rhythms, focusing on enhanced communication between the suprachiasmatic nucleus (SCN) and peripheral clocks. While classical models explain biological
Ovidiu Constantin Baltatu, Ovidiu Constantin Baltatu, Luciana Aparecida Campos, José Cipolla-Neto   +3 more
doaj   +1 more source

Quantum Genetics, Quantum Automata and Quantum Computation [PDF]

, 2004
The concepts of quantum automata and quantum computation are studied in the context of quantum genetics and genetic networks with nonlinear dynamics. In a previous publication (Baianu,1971a) the formal concept of quantum automaton was introduced and its ...
Baianu, Professor I. C.
core  

Colorectal cancer‐derived FGF19 is a metabolically active serum biomarker that exerts enteroendocrine effects on mouse liver

Molecular Oncology, EarlyView.
Meta‐transcriptome analysis identified FGF19 as a peptide enteroendocrine hormone associated with colorectal cancer prognosis. In vivo xenograft models showed release of FGF19 into the blood at levels that correlated with tumor volumes. Tumoral‐FGF19 altered murine liver metabolism through FGFR4, thereby reducing bile acid synthesis and increasing ...
Jordan M. Beardsley, Michael W. Rohr, Joseph A. Goode, Sai Preethi Nakkina, Jignesh G. Parikh, Deborah A. Altomare   +5 more
wiley   +1 more source

Unified analysis of terminal-time control in classical and quantum systems

, 2010
Many phenomena in physics, chemistry, and biology involve seeking an optimal control to maximize an objective for a classical or quantum system which is open and interacting with its environment.
A. Pechen, Agrachev A. A., Billingsley P., Brif C., Craig N. C., H. Rabitz, Isidori A., Koch K. H., Kolmogorov A. N., Landau L. D., Lenhart S., Morowitz H. J., Ohya M., Pechen A., Rice S. A., Rockafellar R. T., Rossini D., Sarkisov O. M., Scrimgeour K. G., Shulz M., Valentine F. A., von Neumann J., Wiseman H. M., Wu R. Dominy J. Ho T.-S. Rabitz H., Wu R. Hsieh M. A. Rabitz H.   +24 more
core   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Markov Chain-Like Quantum Biological Modeling of Mutations, Aging, and Evolution

Life, 2015
Recent evidence suggests that quantum mechanics is relevant in photosynthesis, magnetoreception, enzymatic catalytic reactions, olfactory reception, photoreception, genetics, electron-transfer in proteins, and evolution; to mention few.
Ivan B. Djordjevic
doaj   +1 more source

Quantum biology: introduction [PDF]

, 2014
Author(s): Fleming, GR; Scholes, GD | Abstract: Introduction Key features of quantum mechanics are the uncertainty principle, wave–particle duality, quantization of energies and the modification of classical probability laws. Biology is concerned with how natural systems function – from understanding how genetically coded information is replicated, to ...
Fleming, Graham R, Scholes, Gregory D
openaire   +3 more sources

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei, Fredrik Orädd, Konstantinos Magkakis, Magnus Andersson   +3 more
wiley   +1 more source

iPS cell generation-associated point mutations include many C > T substitutions via different cytosine modification mechanisms

Nature Communications
Genomic aberrations are a critical impediment for the safe medical use of iPSCs and their origin and developmental mechanisms remain unknown. Here we find through WGS analysis of human and mouse iPSC lines that genomic mutations are de novo events and ...
Ryoko Araki, Tomo Suga, Yuko Hoki, Kaori Imadome, Misato Sunayama, Satoshi Kamimura, Mayumi Fujita, Masumi Abe   +7 more
doaj   +1 more source