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Variations of instantaneous heart rate appears regularly oscillatory in deeper levels of anesthesia and less regular in lighter levels of anesthesia. It is impossible to observe this "rhythmic-to-non-rhythmic" phenomenon from raw…

Neurons and Cognition · Quantitative Biology 2015-02-11 Yu-Ting Lin

We aim to assess the effectiveness of feedback controlled resonant drift pacing as a method for low energy defibrillation. Antitachycardia pacing is the only low energy defibrillation approach to have gained clinical significance, but it is…

Tissues and Organs · Quantitative Biology 2009-11-13 S. W. Morgan , G. Plank , I. V. Biktasheva , V. N. Biktashev

Acquiring quantitative information on charge transfer (CT) dynamics at the nanoscale remains an important scientific challenge. In particular, CT processes in single molecules at surfaces needs to be investigated to be properly controlled…

Mesoscale and Nanoscale Physics · Physics 2017-06-20 Hatem Labidi , Henry Pinto , Jerzy Leszczynski , Damien Riedel

We compute the critical temperature $T_c$ for the deconfinement transition of pure QCD on coarse lattices, with $N_t = 2, 3, 4$, and lattice spacings from .33 fm to .15 fm. We employ a perturbatively improved gluon action designed to remove…

High Energy Physics - Lattice · Physics 2007-05-23 D. W. Bliss , K. Hornbostel , G. P. Lepage

Temperature-dependent inter-plane resistivity, $\rho _c(T)$, was used to characterise the normal state of the iron-arsenide superconductor Ba(Fe$_{1-x}$Co$_x$)$_2$As$_2$ over a broad doping range $0\leq x<0.50$. The data were compared with…

Superconductivity · Physics 2018-07-18 M. A. Tanatar , N. ~Ni , A. Thaler , S. L. Bud'ko , P. C. Canfield , R. Prozorov

The principal pacemaker of the circadian clock of the cyanobacterium S. elongatus is a protein phosphorylation cycle consisting of three proteins, KaiA, KaiB and KaiC. KaiC forms a homohexamer, with each monomer consisting of two domains,…

Biological Physics · Physics 2017-03-21 Joris Paijmans , David K Lubensky , Pieter Rein ten Wolde

To elucidate a novel pressure-temperature phase diagram of the quasi-one-dimensional mixed-stack charge-transfer (CT) complex TTF-CA, we study the quasi-one-dimensional spin-1 Blume-Emery-Griffith (BEG) model. In addition to the local…

Strongly Correlated Electrons · Physics 2009-11-10 Jun-ichiro Kishine , Tadeusz Luty , Kenji Yonemitsu

We study mutual information for Renyi entropy of arbitrary index n, in interacting quantum systems at finite-temperature critical points, using high-temperature expansion, quantum Monte Carlo simulations and scaling theory. We find that for…

Strongly Correlated Electrons · Physics 2011-04-01 Rajiv R. P. Singh , Matthew B. Hastings , Ann B. Kallin , Roger G. Melko

We present pump-probe measurements of an all-optical photonic crystal switch based on a nanocavity, resolving fast coherent temporal dynamics. The measurements demonstrate the importance of coherent effects typically neglected when…

Optics · Physics 2016-12-07 Pierre Colman , Per Lunnemann , Yi Yu , Jesper Mørk

We report a thermally activated metastability in a GaAs double quantum dot exhibiting real-time charge switching in diamond shaped regions of the charge stability diagram. Accidental charge traps and sensor back action are excluded as the…

Mesoscale and Nanoscale Physics · Physics 2015-09-08 D. E. F. Biesinger , C. P. Scheller , B. Braunecker , J. Zimmerman , A. C. Gossard , D. M. Zumbühl

Motivated by unexpected reports of a 26 K superconducting transition in elemental titanium at high pressure, we carry out an accurate ab-initio study of its properties to understand the rationale for this observation. The critical…

Superconductivity · Physics 2023-08-29 Antonio Sanna , Camilla Pellegrini , Simone di Cataldo , Giannni Profeta , Lilia Boeri

Ultrafast pump-probe measurements of plasmonic nanostructures probe the non-equilibrium behavior of excited carriers, which involves several competing effects obscured in typical empirical analyses. Here we present pump-probe measurements…

The automated classification of phonocardiogram (PCG) recordings represents a substantial advancement in cardiovascular diagnostics. This paper presents a systematic comparison of four distinct models for heart murmur detection: two…

We explore a prototype of an oscillatory neural network (ONN) based on vanadium dioxide switching devices. The model system under study represents two oscillators based on thermally coupled VO2 switches. Numerical simulation shows that the…

Neural and Evolutionary Computing · Computer Science 2020-01-07 Andrei Velichko , Maksim Belyaev , Vadim Putrolaynen , Valentin Perminov , Alexander Pergament

We calculate the operating parameters of a transition edge sensor that is mounted on a thin dielectric membrane with the assumption that the phononic heat transport in the membrane is ballistic. Our treatment uses the correct phonon modes…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 T. Kühn , I. J. Maasilta

We study the statistics of the kinetic (or equivalently potential) energy for $N$ non-interacting fermions in a $1d$ harmonic trap of frequency $\omega$, at finite temperature $T$. Remarkably, we find an exact solution for the full…

Statistical Mechanics · Physics 2018-09-27 Jacek Grela , Satya N. Majumdar , Gregory Schehr

The entrainment (or locking) phenomenon, by which an oscillator adapts its natural rhythm to an external periodic signal, is well-known in physics, chemistry, biology, etc.; however, controlling an stochastic nonlinear system with a…

Optics · Physics 2019-02-20 J Tiana-Alsina , C Quintero-Quiroz , M. C. Torrent , C Masoller

We report ^77Se-NMR measurements in the recent discovered K_0.8Fe_2Se_2 with the superconducting transition temperature T_c=32 K. The characteristic point of this system is that the high density of state is located in the vicinity of the…

The quest to govern the driving forces behind superconductivity and gain control over the superconducting transition temperature $T_{c}$ is as old as the phenomenon itself. Microscopically, this requires a proper understanding of the…

Superconductivity · Physics 2022-11-02 M. Kriener , M. S. Bahramy , Y. Tokura , Y. Taguchi

Fully symmetric A1g phonons are expected to play a dominant role in electron scattering in strong topological insulators (TIs), thus limiting the ballistic transport of future electronic devices. Here, we report on femtosecond time-resolved…

Mesoscale and Nanoscale Physics · Physics 2018-02-14 Jianbo Hu , Kyushiro Igarashi , Takao Sasagawa , Kazutaka G. Nakamura , Oleg V. Misochko