Results 81 to 90 of about 232,020 (293)

Retrospective Grid Cells in the Medial Entorhinal Cortex Encode Past Paths During Spatial Navigation

Advanced Science, EarlyView.
Retrospective grid cells are identified in the medial entorhinal cortex, with spatial firing patterns that become most grid‐like when activity is projected onto recently traversed locations. Their coding loses spatial precision in darkness and is disrupted during assisted movement, indicating that entorhinal representations incorporate recent path ...
Ruojin Liu, Xin Yuan, Zilong He, Hong Jin, Jiayi Tian, Cong Chen, Yuanjing Liu, Xiang Zhang, Shidan Wen, Emilio Kropff, Chenglin Miao   +10 more
wiley   +1 more source

Heating of coronal loops by phase-mixing.

, 1997
A simple, self similar solution for the heating of coronal loops is presented. It is shown that the Heyvaerts-Priest model gives a good description of phase mixing in a certain class of coronal loops.
Hood, A. W., Ireland, J., Gonzalez-Delgado, D.   +2 more
core   +1 more source

Mass Flows in Expanding Coronal Loops

The Astrophysical Journal
An expansion of the cross-sectional area directly impacts the mass flow along a coronal loop and significantly alters the radiative and hydrodynamic evolution of that loop as a result.
Jeffrey W. Reep, Roger B. Scott, Sherry Chhabra, John Unverferth, Kalman J. Knizhnik   +4 more
doaj   +1 more source

Resonances of coronal loops

The Astrophysical Journal, 1984
We study the transmission of energy into coronal loops by Alfven waves. A three-layer model is studied analytically. The three-layer model has a constant Alfven speed (v/sub A/) in the coronal part of the loop, but v/sub A/ varies exponentially with distance in the chromospheres and transition region and the two ends of the loop.
openaire   +1 more source

Determination of the True Shape of Coronal Loops

Solar Physics, 2008
Using line of sight velocity measurements from the SUMER and CDS instruments aboard SOHO, in conjunction with a simple geometrical model, we reconstructed the true, 3D shape and the velocity of plasma flow along coronal loops. The projection of the loop on the sky and the position of the footpoints define a family of curves.
Alissandrakis, C. E., Gontikakis, C., Dara, H. C.   +2 more
openaire   +2 more sources

Longitudinal Awake Mouse Brain Imaging Using Functional Ultrasound and Functional Ultrasound Localization Microscopy

Advanced Science, EarlyView.
Awake longitudinal multimodal ultrasound imaging integrates functional ultrasound (fUS), ultrasound localization microscopy (ULM), and functional ULM (fULM) to characterize cerebrovascular function, microvascular architecture, and flow dynamics within the same animals over time.
Zhe Huang, Yike Wang, Matthew R. Lowerison, Yue Xu, Murong Yi, Bing‐Ze Lin, YiRang Shin, Nathiya Vaithiyalingam Chandra Sekaran, Daniel A. Llano, Pengfei Song   +9 more
wiley   +1 more source

Neonatal Sevoflurane Exposure Induces Long‐Term Cognitive Impairment via Epigenetically Mediated MMP9 Activation and Perineuronal Net Disruption in the Hippocampal CA2

Advanced Science, EarlyView.
Hippocampal CA2 perineuronal nets ensheathing excitatory pyramidal neurons are selectively vulnerable to repeated neonatal sevoflurane exposure. Epigenetic upregulation of MMP9 via reduced H3K27me3 disrupts PNN integrity, impairs BDNF–TrkB signaling, and causes synaptic protein loss and dendritic spine deficits, leading to persistent social and spatial
Lirong Liang, Jiachen Wang, Taozhi Wang, Yanling Li, Youyi Zhao, Guanghui Hao, Peiqin Gong, Ruling Chen, Yilin Fang, Shengxi Wu, Haopeng Zhang, Hui Zhang   +11 more
wiley   +1 more source

Huntingtin Aggregate‐Responsive Autophagy Gene Circuit Mitigates Disease Pathology in R6/2 Mice

Advanced Science, EarlyView.
CD98‐mediated receptor‐mediated transcytosis enables LIP‐CD98 nanocarriers to cross the blood–brain barrier and deliver ARAA to neurons. mHTT aggregates activate the 11G–NarX sensor, initiating Auto‐P and Trans‐P signaling through the VP48–NarL relay.
Jie Zhu, Xi‐xiu Xie, Lei Li, Chen Tian, Hao‐tian Wang, Xiao‐jie Wang, Xiao‐lin Yu, Gui‐feng Zhang, Rui‐tian Liu   +8 more
wiley   +1 more source

Polarisation of decayless kink oscillations of solar coronal loops. [PDF]

Nat Commun, 2023
Zhong S, Nakariakov VM, Kolotkov DY, Chitta LP, Antolin P, Verbeeck C, Berghmans D.   +6 more
europepmc   +1 more source

Targeted Mechanogenetics to Modulate Specific Deep Neural Circuits

Advanced Science, EarlyView.
This study introduces mechanogenetics, a nanobubble‐enhanced sonogenetic strategy for selective modulation of feeding‐related neural circuits in the mouse lateral hypothalamus. Mechanogenetic stimulation modulates feeding behavior through glutamatergic projections from the lateral hypothalamus to the ventral tegmental area, highlighting its potential ...
Xuandi Hou, Jianing Jing, Zhuohan Shi, Lei Sun   +3 more
wiley   +1 more source