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We theoretically analyse the dynamics of a suspended graphene membrane which is in tunnel contact with grounded metallic electrodes and subjected to ac-electrostatic potential induced by a gate electrode. It is shown that for such system…

介观与纳米尺度物理 · 物理学 2015-06-12 Axel M. Eriksson , Marina V. Voinova , Leonid Y. Gorelik

To study information processing in the brain, neuroscientists manipulate experimental stimuli while recording participant brain activity. They can then use encoding models to find out which brain "zone" (e.g. which region of interest,…

神经元与认知 · 定量生物学 2022-02-22 Mariya Toneva , Jennifer Williams , Anand Bollu , Christoph Dann , Leila Wehbe

Nanophotonics provides the ability to rapidly and precisely reconfigure light beams on a compact platform. Infrared nanophotonic devices are widely used in data communications to overcome traditional bandwidth limitations of electrical…

Low-intensity Transcranial Ultrasonic Stimulation (TUS) is a non-invasive brain stimulation technique enabling cortical and deep brain targeting with unprecedented spatial accuracy. Given the high rate of adoption by new users with varying…

In the brain, the membrane potential of many neurons oscillates in a subthreshold damped fashion and fire when excited by an input frequency that nearly equals their eigen frequency. In this work, we investigate theoretically the artificial…

应用物理 · 物理学 2018-10-17 Md. Ali Azam , Dhritiman Bhattacharya , Damien Querlioz , Jayasimha Atulasimha

Electroencephalography (EEG) foundation models hold significant promise for universal Brain-Computer Interfaces (BCIs). However, existing approaches often rely on end-to-end fine-tuning and exhibit limited efficacy under frozen-probing…

机器学习 · 计算机科学 2026-03-20 Jiquan Wang , Sha Zhao , Yangxuan Zhou , Yiming Kang , Shijian Li , Gang Pan

Magnetization dynamics in nanomagnets has attracted broad interest since it was predicted that a dc-current flowing through a thin magnetic layer can create spin-wave excitations. These excitations are due to spin-momentum transfer, a…

介观与纳米尺度物理 · 物理学 2012-06-25 F. Macià , A. D. Kent , F. C. Hoppensteadt

In view of ever-changing conditions both in the external world and in intrinsic brain states, maintaining the robustness of computations poses a challenge, adequate solutions to which we are only beginning to understand. At the level of…

神经元与认知 · 定量生物学 2022-03-29 Nelson Niemeyer , Jan-Hendrik Schleimer , Susanne Schreiber

The electrical generation and detection of elastic waves are the foundation for acousto-electronic and acousto-optic systems. For surface-acoustic-wave devices, micro-/nano-electromechanical systems, and phononic crystals, tailoring the…

介观与纳米尺度物理 · 物理学 2018-05-14 Lu Zheng , Hui Dong , Xiaoyu Wu , Yen-Lin Huang , Wenbo Wang , Weida Wu , Zheng Wang , Keji Lai

In 2016, the Global Burden of Disease reported that neurological disorders were the principal cause of disability-adjusted life years (DALYs) and the second leading cause of deaths. Research in the last decade has pushed neuroscience to…

应用物理 · 物理学 2019-10-08 Renata Saha , Kai Wu , Diqing Su , Jian-Ping Wang

We study the statistical physics of a surprising phenomenon arising in large networks of excitable elements in response to noise: while at low noise, solutions remain in the vicinity of the resting state and large-noise solutions show…

适应与自组织系统 · 物理学 2020-04-01 Jonathan D. Touboul , Charlotte Piette , Laurent Venance , G. Bard Ermentrout

Current scientific consensus holds that sound is transmitted, solely mechanically, from the tympanum to the cochlea via ossicles. However this theory does not explain the hearing extreme quality regarding high frequencies in mammals. So, we…

We propose an ultrasound approach which provides, with one single examination and one single device, access to three bone biomarkers: anatomy, tissue quality and blood flow. It unlocks ultrasound imaging inside bone by accounting for…

Living cells employ excitable reaction-diffusion waves for internal cellular functions, in which curvature-inducing proteins are often involved. However, the role of their mechanochemical coupling is not well understood. Here, we report the…

软凝聚态物质 · 物理学 2022-08-09 Naoki Tamemoto , Hiroshi Noguchi

Neuromorphic computing promises to transform AI systems by enabling them to perceive, respond to, and adapt swiftly and accurately to dynamic data and user interactions. However, traditional silicon-based and hybrid electronic technologies…

光学 · 物理学 2025-07-09 Robert Otupiri , Ripalta Stabile

Neurons and networks in the cerebral cortex must operate reliably despite multiple sources of noise. To evaluate the impact of both input and output noise, we determine the robustness of single-neuron stimulus selective responses, as well…

神经元与认知 · 定量生物学 2018-01-24 Ran Rubin , L. F. Abbott , Haim Sompolinsky

The ongoing activity of neurons generates a spatially- and time-varying field of extracellular voltage ($V_e$). This $V_e$ field reflects population-level neural activity, but does it modulate neural dynamics and the function of neural…

神经元与认知 · 定量生物学 2015-08-10 Joshua H. Goldwyn , John Rinzel

We have implemented field models and performed a detailed numerical dosimetry inside our extremely-low-frequency electromagnetic bioreactor which has been successfully used in $\textit{in vitro}$ Biotechnology and Tissue Engineering…

其他定量生物学 · 定量生物学 2019-08-06 Maria Evelina Mognaschi , Paolo Di Barba , Giovanni Magenes , Andrea Lenzi , Fabio Naro , Lorenzo Fassina

To address existing challenges with intravascular mechanical thrombectomy devices, a novel ultrasound-enhanced aspiration approach is being developed to mechanically degrade clots using cavitation. This method employs standing waves within…

医学物理 · 物理学 2024-05-27 Li Gong , Alex R. Wright , Kullervo Hynynen , David E. Goertz

This work is devoted to establishing the mechanisms of elastic oscillation influence on nucleation processes in metal melts. The method of physical modeling with low-temperature metallic alloys (Wood and Rose) and transparent organic media…

材料科学 · 物理学 2026-02-10 A. S. Nuradinov , O. V. Chistyakov , K. A. Sirenko , I. A. Nuradinov , D. O. Derecha