1,468 Hits in 2.8 sec

Dissecting gamma frequency activity during human memory processing

Michal T. Kucewicz, Brent M. Berry, Vaclav Kremen, Benjamin H. Brinkmann, Michael R. Sperling, Barbara C. Jobst, Robert E. Gross, Bradley Lega, Sameer A. Sheth, Joel M. Stein, Sandthitsu R. Das, Richard Gorniak (+4 others)
2017 Brain  
Previous studies have independently explored narrowband oscillations in the local field potential and broadband power increases.  ...  The words on each list were either sampled from specific categories (categorized free recall task) like vehicles, music instruments and vegetables, or they were sampled randomly (free recall task).  ...  The free recall tasks used lists of 12 words presented individually on a laptop computer screen for subsequent recall.  ... 
doi:10.1093/brain/awx043 pmid:28335018 fatcat:j4reouwtifalfn43lzoleqvkbm

High frequency oscillations in the intact brain

György Buzsáki, Fernando Lopes da Silva
2012 Progress in Neurobiology  
Prior to the journey on a linear track, the sequence of neuronal activity during SPW-Rs is similar to the sequence of the place-related firing while the rat traverses the track.  ...  Sequences that predict the place cell sequences on not-yet experienced tracks have been detected during both waking (Gupta et al., 2010) and sleep prior to the visits to the novel routes (Dragoi and  ... 
doi:10.1016/j.pneurobio.2012.02.004 pmid:22449727 pmcid:PMC4895831 fatcat:urp3dom6rjgyjkkthc26fxqtga

Daily Activity of the Housefly, Musca domestica , Is Influenced by Temperature Independent of 3′ UTR period Gene Splicing

Olga Bazalova, David Dolezel
2017 G3: Genes, Genomes, Genetics  
Circadian clocks orchestrate daily activity patterns and free running periods of locomotor activity under constant conditions.  ...  While the first often depends on temperature, the latter is temperaturecompensated over a physiologically relevant range.  ...  The values indicate the actual occurrence of a particular cis-motif presented as a fold change when 1 is the expected frequency of a particular motif in a random DNA sequence.  ... 
doi:10.1534/g3.117.042374 pmid:28620087 pmcid:PMC5555469 fatcat:am53ic4pfjfbzbynyg3mwpxdza

Stochastic homogenization of subdifferential inclusions via scale integration [article]

Marco Veneroni
2011 arXiv   pre-print
random fields, with p-growth.  ...  We study the stochastic homogenization of the system -div \sigma^\epsilon = f^\epsilon \sigma^\epsilon \in \partial \phi^\epsilon (\nabla u^\epsilon), where (\phi^\epsilon) is a sequence of convex stationary  ...  The expected value of a random variable f on Ω is defined as Remark 1.  ... 
arXiv:1107.2374v1 fatcat:ieisde5235bxnfg2ze7r73czjm

A Multi-Layered Study on Harmonic Oscillations in Mammalian Genomics and Proteomics

Nikolai Genov, Stefano Castellana, Felix Scholkmann, Daniele Capocefalo, Mauro Truglio, Jessica Rosati, Elisa Maria Turco, Tommaso Biagini, Annalucia Carbone, Tommaso Mazza, Angela Relógio, Gianluigi Mazzoccoli
2019 International Journal of Molecular Sciences  
regions of 8-h and 12-h oscillating genes that seemingly allow the link of the ultradian gene sets to a known circadian network.  ...  Time-course mRNA gene expression profiling in mouse liver showed two subsets of genes oscillating at the second (12-h) and third (8-h) harmonic of the prime (24-h) frequency.  ...  a series of simulations based on randomized protein-protein interaction networks.  ... 
doi:10.3390/ijms20184585 pmid:31533246 pmcid:PMC6770795 fatcat:vkzqa3lyjbd7zpfxhpc4r7stka

Nitric Oxide as stress inducer and synchronizer of p53 dynamics [article]

Gurumayum Reenaroy Devi, Md. Jahoor Alam, R.K. Brojen Singh
2014 arXiv   pre-print
In the single system study, we have found three distinct types of temporal behaviour of p53, namely, oscillation death, damped oscillation and sustain oscillation, depending on the amount of stress induced  ...  of \epsilon decreases as system size increases.  ...  Further, radiation drive [36] and damagedrive random signal [37] on p53 is incorporated in the system systematically with intrinsic noise which exhibit oscillation in the dynamics and argued that this  ... 
arXiv:1409.0528v1 fatcat:rm6qubxnkramldefzw3ehbbmjm

Explaining Thermodynamic-Like Behavior in Terms of Epsilon-Ergodicity*

Roman Frigg, Charlotte Werndl
2011 Philosophy of Science  
epsilon.  ...  We then argue that something close to Boltzmann's proposal is true: gases behave thermodynamic-like if they are epsilon-ergodic, that is, ergodic on the phase space except for a small region of measure  ...  ., a system of harmonic oscillators does not).  ... 
doi:10.1086/661567 fatcat:bi5yfjbuwzd3flposxmgpb3yxu

Stopping Time: The Genetics of Fly and Mouse Circadian Clocks

Ravi Allada, Patrick Emery, Joseph S. Takahashi, Michael Rosbash
2001 Annual Review of Neuroscience  
Future studies of pacemaker mechanisms and their control of physiology and behavior will likely continue to rely on forward genetics.  ...  Key Words circadian, bHLH-PAS, period, cryptochrome, casein kinase I epsilon s Abstract Forward genetic analyses in flies and mice have uncovered conserved transcriptional feedback loops at the heart of  ...  The random probability that one will find such a sequence in the vicinity of a cycling gene is therefore relatively high.  ... 
doi:10.1146/annurev.neuro.24.1.1091 pmid:11520929 fatcat:ustbf2hq3bd4rhikxy3eilqvne

Explaining Thermodynamic-Like Behaviour In Terms of Epsilon-Ergodicity [article]

Roman Frigg, Charlotte Werndl
2013 arXiv   pre-print
We then argue that something close to Boltzmann's proposal is true: gases behave thermodynamic-like if they are epsilon-ergodic, i.e., ergodic on the phase space except for a small region of measure epsilon  ...  This answer is promising because there is evidence that relevant systems are epsilon-ergodic.  ...  In fact, how a macrostate of a system changes is determined by how its microstate changes: the sequence of macrostates of the system is determined by the sequence of microstates.  ... 
arXiv:1310.1717v1 fatcat:7zrnyuqamjhznhp7zcq4lyj3du

Two mechanisms of spiral-pair-source creation in excitable media

Y. Biton, A. Rabinovitch, I. Aviram, D. Braunstein
2009 Physics Letters A  
One mode can be induced by a single wave and behaves as a "flip-flop" type of a limit cycle.  ...  The other mode is generated by a train of plane waves impinging on the GS, and is created at the focus of the converging wave-fragments.  ...  This is the end point in time of the transient sequence, when the basic wave shape has formed. Call this the "flip" position. From here on, one witnesses a periodic sequence, as explained below.  ... 
doi:10.1016/j.physleta.2009.03.030 fatcat:sfvdbloql5c6njz5snftb3qdqm

Processing of Rhythmic and Melodic Gestalts?An ERP Study

Christiane Neuhaus, Thomas R. Kn�sche
2006 Music Perception  
The enlarged P1 and P2 for random sequences might reflect stronger integration effort, as the predictability of tone progression was low.  ...  In the second experiment, melodies were contrasted to randomized sequences. Nonmusicians either had to detect the rhythmic pattern or to memorize short tone excerpts.  ...  Author Note We would like to thank Sofia Dahl and two anonymous reviewers for valuable comments on previous versions of the manuscript. We thank Ina Koch and Heike Böthel for careful EEG measurements.  ... 
doi:10.1525/mp.2006.24.2.209 fatcat:blyjwzoljbc6jpertwdafhd4wu

Functional Analysis of Casein Kinase 1 in a Minimal Circadian System

Gerben van Ooijen, Matthew Hindle, Sarah F. Martin, Martin Barrios-Llerena, Frédéric Sanchez, François-Yves Bouget, John S. O'Neill, Thierry Le Bihan, Andrew J. Millar, Ralph E Mistlberger
2013 PLoS ONE  
Label-free proteomic analyses upon overexpression as well as inhibition revealed CK1-responsive phosphorylation events on a set of target proteins, including highly conserved potentially clock-relevant  ...  Some evidence for timekeeping mechanism conserved from early unicellular life through to modern organisms was recently identified, but the components of this oscillator are currently unknown.  ...  In addition, this result implies that O. tauri CK1 acts on motifs similar to clock-relevant human CK1 homolog epsilon.  ... 
doi:10.1371/journal.pone.0070021 pmid:23936135 pmcid:PMC3723912 fatcat:j6spsh77njhuhh4qjmxeyaffeq

Enhanced superradiance in epsilon-near-zero plasmonic channels

Romain Fleury, Andrea Alù
2013 Physical Review B  
We describe the possibility of drastically boosting the spontaneous emission of a collection of two-level quantum emitters by embedding them in an epsilon-near-zero (ENZ) environment, consisting of a plasmonic  ...  This phenomenon relies on the combination of Purcell enhancement and Dicke superradiance effects, exploiting the large and uniform local density of states in ENZ channels, which is shown to significantly  ...  microscopy [3] , DNA sequencing [4] , low-threshold lasing [5] , single molecule detection [6] and surface enhanced Raman spectroscopy [7] .  ... 
doi:10.1103/physrevb.87.201101 fatcat:rc7c63p5dvaofmo5zsm5ncqx2u

The Cost of a True Random Bit—On the Electronic Cost Gain of ASIC Time-Domain-Based TRNGs

Netanel Klein, Eyal Harel, Itamar Levi
2021 Cryptography  
Random number generators are of paramount importance in numerous fields.  ...  Under certain well-defined adversarial settings, True Random Number Generators (TRNGs) are more secure than their computational (pseudo) random number generator counterparts.  ...  The source of randomness is a free-running ring oscillator.  ... 
doi:10.3390/cryptography5030025 fatcat:md6drffzv5cfpg2p3z4scofgje

Numerical experiments on the accuracy of the Chebyshev–Frobenius companion matrix method for finding the zeros of a truncated series of Chebyshev polynomials

John P. Boyd, Daniel H. Gally
2007 Journal of Computational and Applied Mathematics  
We show by experimenting with random polynomials, Wilkinson's notoriously ill-conditioned polynomial, and polynomials with high-order roots that the Chebyshev companion matrix method is remarkably accurate  ...  For a function f (x) that is smooth on the interval x ∈ [a, b] but otherwise arbitrary, the real-valued roots on the interval can always be found by the following two-part procedure.  ...  Polynomials with random coefficients For a first set of experiments, we created an ensemble of polynomials with random coefficients chosen from the uniform distribution on [−1, 1] and then averaged the  ... 
doi:10.1016/ fatcat:tgcn5uldcrgataepqtvp6je2re
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