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This letter restudies the Nosé-Hoover oscillator. Some new averagely conservative regions are found, each of which is filled with different sequences of nested tori with various knot types. Especially, the dynamical behaviors near the border of "chaotic region" and conservative regions are studied showing that there exist more complicated and thinner invariant tori around the boundaries of conservative regions bounded by tori. Our results suggest an infinite number of island chains in a "chaotic sea" for the Nosé-Hoover oscillator.
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http://dx.doi.org/10.1063/1.4937167 | DOI Listing |
Nat Commun
September 2025
Centre for Genomics and Oncological Research (GENYO), Avenue de la Ilustración 114, 18016, Granada, Spain.
Circadian oscillations of gene transcripts rely on a negative feedback loop executed by the activating BMAL1-CLOCK heterodimer and its negative regulators PER and CRY. Although circadian rhythms and CLOCK protein are mostly absent during embryogenesis, the lack of BMAL1 during prenatal development causes an early aging phenotype during adulthood, suggesting that BMAL1 performs an unknown non-circadian function during organism development that is fundamental for healthy adult life. Here, we show that BMAL1 interacts with TRIM28 and facilitates H3K9me3-mediated repression of transposable elements in naïve pluripotent cells, and that the loss of BMAL1 function induces a widespread transcriptional activation of MERVL elements, 3D genome reorganization and the acquisition of totipotency-associated molecular and cellular features.
View Article and Find Full Text PDFJ Neurosci
September 2025
Psychiatry, University of Minnesota, Minneapolis, Minnesota 55455
Deep brain stimulation (DBS) is an emerging treatment for otherwise treatment-refractory psychiatric disorders. It can produce remarkable clinical results in expert hands, but has not fared as well in controlled, multisite trials. That difficulty with scaling up arises in part because DBS' mechanisms are poorly understood, meaning that it is difficult to objectively identify patients likely to respond and/or to customize stimulation to match individual patients' needs.
View Article and Find Full Text PDFRespir Care
September 2025
Dr. Thomasian and Prof. Wunsch are affiliated with Department of Anesthesiology, Weill Cornell Medicine, New York, New York, USA.
Negative-pressure ventilation (NPV) is a form of noninvasive respiratory support in which an external subatmospheric pressure is applied to the thorax to facilitate lung expansion. Although largely supplanted by positive-pressure ventilation (PPV) in modern-day practice, NPV has garnered renewed interest as a potential noninvasive adjunct or alternative to PPV. Appropriate patient selection would be key, particularly in the ICU setting, where NPV is generally contraindicated in patients with severe upper airway obstruction, high oxygenation requirements, or absent airway reflexes.
View Article and Find Full Text PDFAnn N Y Acad Sci
September 2025
University of Toronto, Toronto, Ontario, Canada.
Neural oscillations in beta (13-30 Hz) and gamma (>30 Hz) frequency bands index a variety of sensorimotor and cognitive processes. To compare two rehabilitation regimens for chronic stroke patients with a hemiparetic hand, we randomly assigned them to either music-supported therapy or physiotherapy for 10 weeks. Previously, we reported the music group's improved motor speed, mood, well-being, and rhythm perception.
View Article and Find Full Text PDFMath Biosci
September 2025
Department of Mathematics, Western University, London, Ontario, N6A 5B7, Canada. Electronic address:
Pine wilt disease (PWD) is mainly spread by Monochamus alternatus (in short, M. alternatus). Woodpecker, as the natural predator of M.
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