Small-scale, cyclic, transverse motions of plasma threads are usually seen in solar prominences, which often interpreted as magnetohydrodynamic (MHD) waves. Here, we observed small-scale decayless oscillations a quiescent prominence, and they appear to be omnipresent. The oscillatory periods the emission intensity proxy for line-of-sight Doppler shift about half period displacement oscillations...

We investigate systematic uncertainties in determining the proÐles of the solar sound speed, density, and adiabatic index using helioseismological techniques. We Ðnd that rms uncertainties (averaged over the Sun) of D0.02%È0.04% are contributed to the sound-speed proÐle by each of three sources : (1) the choice of assumed reference model, (2) the width of the inversion kernel, and (3) the measu...

Abstract High-frequency wave phenomena present a great deal of interest as one the possible candidates to contribute energy input required heat corona part alternating current heating theory. However, resolution imaging instruments up until Solar Orbiter has made it impossible resolve necessary time and spatial scales. The paper reports on high-frequency transverse motions in small loop located...

Magnetic field modifies the properties of waves in a complex way. Significant advances has been made recently in our understanding of the physics of waves in solar active regions with the help of analytical theories, numerical simulations, as well as hi-resolution observations. In this contribution we review the current ideas in the field, with the emphasis on theoretical models of waves in sun...

With the recent advent of the Swedish 1-m Solar Telescope (SST), advanced image processing techniques, as well as numerical simulations that provide a more realistic view of the chromosphere, a comprehensive understanding of chromospheric jets such as spicules, mottles and fibrils is now within reach. In this paper, we briefly summarize results from a recent analysis of dynamic fibrils, short-l...

Recent findings from electrophysiology and multimodal neuroimaging have elucidated the relationship between patterns of cortical oscillations evident in EEG/MEG and the functional brain networks evident in the BOLD signal. Much of the existing literature emphasized how high-frequency cortical oscillations are thought to coordinate neural activity locally, while low-frequency oscillations play a...

The corticostriatal axis is the main input stage of the basal ganglia and is crucial for their role in motor behavior. Synchronized oscillations might mediate interactions between cortex and striatum during behavior, yet direct evidence remains sparse. Here, we show that, during motor behavior, low- and high-frequency oscillations jointly couple cortex and striatum via cross-frequency interacti...

The structure of the centromere-specific histone centromeric protein A (CENP-A) nucleosome has been a hot topic of debate for the past five years. Structures proposed include octamers, hexamers, homotypic and heterotypic tetramers. This controversy has led to the proposal that CENP-A nucleosomes undergo cell-cycle dependent transitions between the multiple states previously documented to exist ...

Spicules are plasma jets that observed in the dynamic interface region between visible solar surface and hot corona. At any given time, it is estimated about 3 million spicules present on Sun. We find an intriguing parallel simulated spicular forest a solar-like atmosphere numerous of polymeric fluids when both subjected to harmonic forcing. In radiative magnetohydrodynamic numerical simulation...

A class of theoretical models seeks to explain rhythmic single cell data by postulating that they are generated by intrinsic noise in biochemical systems whose deterministic models exhibit only damped oscillations. The main features of such noise-induced oscillations are quantified by the power spectrum which measures the dependence of the oscillatory signal's power with frequency. In this pape...