Results 41 to 50 of about 256,217 (299)

Single-File Diffusion of Externally Driven Particles

, 2012
We study 1-D diffusion of $N$ hard-core interacting Brownian particles driven by the space- and time-dependent external force. We give the exact solution of the $N$-particle Smoluchowski diffusion equation.
A. L. Hodgkin, Artem Ryabov, H. Risken, J. Kärger, Petr Chvosta, W. van Gool   +5 more
core   +1 more source

Energetics of Forced Thermal Ratchet [PDF]

, 1998
Molecular motors are known to have the high efficiency of energy transformation in the presence of thermal fluctuation. Motivated by the surprising fact, recent studies of thermal ratchet models are showing how and when work should be extracted from ...
A. Ajdari, A. Ajdari, A. R. Doering, C. W. Gardiner, F. Jülicher, Fumiko Takagi, Hideki Kamegawa, K. Sekimoto, K. Sekimoto, M. Büttiker, M. O. Magnasco, R. C. Woledge, R. D. Vale, R. Landauer, R. P. Feynman, T. Hondou, T. Hondou, Tsuyoshi Hondou   +17 more
core   +3 more sources

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Transformation of dynamical fluctuation into coherent energy

, 1998
Studies of noise-induced motions are showing that coherent energy can be extracted from some kinds of noise in a periodic ratchet. Recently, energetics of Langevin dynamics is formulated by Sekimoto [J.Phys.Soc.Jpn, 66 1234 (1997)], which can be ...
Büttiker M., Feynman R. P., Gardiner C. W., Grossmann S., Hondou T., Hondou T., Hondou T., Jülicher F., Jülicher F., Schuster H. G., Sekimoto K., Vale R. D., Woledge R. C.   +12 more
core   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Methods of intelligent protection from asymmetrical conditions in electric networks [PDF]

E3S Web of Conferences, 2020
Possible cases of non-fulfilment of the requirements of the necessary sensitivity and the selectivity of the existing protection against incomplete-phase and asymmetric modes in the electrical network under conditions of uncertainty of the initial data ...
Guliyev H.B, Tomin N.V., Ibrahimov F.Sh
doaj   +1 more source

Comparison of the Electronic Structures and Energetics of Ferroelectric LiNbO3 and LiTaO3

, 1995
This paper explains the origin of the ferroelectric instability in LiNbO3 and LiTaO3 and compares the electronic structures and energetics of the two materials.Comment: 31 pages, 11 Postscript ...
A. C. Nunes, A. Dhar, A. F. Penna, A. F. Penna, A. F. Penna, A. Glass, A. Jayaraman, A. S. Barker, A. S. Barker, A. V. Postnikov, A. V. Postnikov, B. T. Matthias, C. A. Azzini, C. Prieto, C. Raptis, D. J. Singh, D. P. Birnie III, D. P. Birnie III, D. P. Birnie III, D. Redfield, D. Singh, E. J. Samuelson, F. C. Marton, G. A. Samara, G. Cheng, G. L. Catchen, H. Boysen, H. J. Bakker, H. J. Bakker, I. Inbar, I. Tomeno, I. Tomeno, Iris Inbar, J. L. Servion, J. P. Sokoloff, J. Toulouse, K. J. Kingma, L. Hedin, L. Stixrude, L. Stixrude, M. E. Lines, M. E. Lines, M. E. Lines, M. J. Mehl, M. R. Chowdhury, M. Zhang, O. Hanske-Petitpierre, O. K. Andersen, P. DiAntonio, P. J. Edwardson, R. Comes, R. D. King-Smith, R. D. Shannon, R. E. Cohen, R. E. Cohen, R. E. Cohen, R. E. Cohen, R. E. Cohen, R. E. Cohen, R. E. Cohen, R. G. Gordon, S. C. Abrahams, S. C. Abrahams, S. C. Abrahams, S. C. Abrahams, S. Wei, T. P. Dougherty, W. D. Johnston, W. E. Pickett, W. Y. Ching, W. Zhong, W. Zhong, Y. Okamoto, Y. Tezuka, Z. Gong   +74 more
core   +1 more source

Concerted [4 + 2] and Stepwise (2 + 2) Cycloadditions of Tetrafluoroethylene with Butadiene: DFT and DLPNO-UCCSD(T) Explorations. [PDF]

, 2020
Tetrafluoroethylene and butadiene form the 2 + 2 cycloadduct under kinetic control, but the Diels-Alder cycloadduct is formed under thermodynamic control. Borden and Getty showed that the preference for 2 + 2 cycloaddition is due to the necessity for syn-
Houk, KN, Liu, Peng, Mackey, Joel L, Pemberton, Ryan P, Svatunek, Dennis   +4 more
core  

Linking neurogenesis, oligodendrogenesis, and myelination defects to neurodevelopmental disruption in primary mitochondrial disorders

FEBS Letters, EarlyView.
Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas, Porter L. Tomsick, Alicia M. Pickrell, Paul D. Morton   +3 more
wiley   +1 more source

The Carnot Cycle for Small Systems: Irreversibility and the Cost of Operations

, 2000
We employ the recently developed framework of the energetics of stochastic processes (called `stochastic energetics'), to re-analyze the Carnot cycle in detail, taking account of fluctuations, without taking the thermodynamic limit.
B. Alberts, E. Fermi, Fumiko Takagi, H. A. Kramers, H. Sakaguchi, I. Der’enyi, J. M. R. Parrondo, J. R. Cray, K. Sekimoto, K. Sekimoto, K. Sekimoto, Ken Sekimoto, L. D. Landau, M. Büttiker, M. Matsuo, M. O. Magnasco, R. D. Vale, S. Sasa, T. Kasuga, T. Kasuga, T. Kasuga, Tsuyoshi Hondou   +21 more
core   +1 more source