Results 61 to 70 of about 1,849 (261)

Adaptive Network Stabilization Despite Profound Structural Reorganization in Human Organotypic Cultures

Advanced Science, EarlyView.
Adult human organotypic cortical slices undergo marked neuronal loss, laminar disruption, and glial activation, yet their network activity progressively stabilizes after a variable period. Electrophysiology, longitudinal calcium imaging, and quantitative histology show that structurally remodeled human circuits show adaptive capacity resulting in ...
Estilla Zsófia Tóth, Rebeka Stelcz, Réka Bod, Ábel Petik, Eszter Juhász, Kinga Tóth, Liza Szalai, Nour Essam, Fanni Somogyi, Beatrix Kovács, Amirmahdi Mojtahedzadeh, Attila György Bagó, Loránd Erőss, Péter Orbay, Johanna Petra Szabó, Dániel Fabó, Boglárka Hajnal, Bence Rácz, Daniel Hillier, István Ulbert, Lucia Wittner   +20 more
wiley   +1 more source

Lie symmetry and conserved quantities for time-delayed fractional mechanical systems based on fractional factor

Journal of Applied Science and Engineering
This paper develops a fractional factor to generalize Lie symmetry analysis to time-delayed fractional mechanical systems. Firstly, the fractional Hamilton’s principle are formulated incorporating non-potential forces and delayed coordinates.
Linli Wang, Yuheng Xiong, Chunjian Xue, Jingli Fu, Zuoxu Wang   +4 more
doaj   +1 more source

Vibration Suppression Control of a Flexible Gantry Crane System with Varying Rope Length

Journal of Control Science and Engineering, 2019
The paper presents a control approach to a flexible gantry crane system. From Hamilton’s extended principle the equations of motion that characterized coupled transverse-transverse motions with varying rope length of the gantry is obtained. The equations
Tung Lam Nguyen, Trong Hieu Do, Hong Quang Nguyen   +2 more
doaj   +1 more source

Printing‐Assisted Integration of Thermal, Fluidic and Electrical Components in Implants for Focal Brain Cooling

Advanced Science, EarlyView.
Extrusion‐based 3D printing of silicones and discrete electronic components are combined to create cortical implants for rodents that integrate thermal neuromodulation and electrical recording. Linked to an autonomous auxiliary driver unit, the system enables rapid, stable and localized hypothermia alongside ECoG recording.
Spencer Ryan Moore, Naomi King, Aruã Clayton Da Silva, Clare Howarth, Jason Berwick, Thomas E. Paterson, Ivan R. Minev   +6 more
wiley   +1 more source

Astrocytes Coordinate Neurovascular Coupling During Prolonged Sensory Demand via AQP4/TRPA1/BEST1/D‐Serine Signaling

Advanced Science, EarlyView.
Neuronal activation leads to astrocytic transient volume changes, activating transient receptor potential ankyrin 1 (TRPA1) channels, leading to Ca2+ influx. Activation of TRPA1 causes the release of D‐serine through BEST1. Finally, the augmented extracellular levels of D‐serine boost neuronal activity by binding GluN1‐containing NMDARs, leading to CBV
Kayoung Han, Minwoo Wendy Jang, Taeyoung Park, Ki Jung Kim, Victor James Drew, Sunpil Kim, Tai Young Kim, Mingu Gordon Park, Myeongju Kim, Seung Won Chung, Minah Suh, C. Justin Lee   +11 more
wiley   +1 more source

Triple‐Coupling Regulation Enables Dendrite‐Free Subzero Aqueous Zn‐Ion Batteries

Advanced Science, EarlyView.
A formamide‐ethanol deep eutectic electrolyte enables triple‐coupling regulation of solvation structure, interfacial chemistry, and crystallographic Zn deposition. The reconstructed Zn2+ solvation reduces water activity and suppresses side reactions, while a robust hybrid SEI stabilizes the interface.
Mengyang Dong, Zhibao Yang, Lina Pan, Jie Qu, Shangshu Qian, Jessica Hamilton, Bernt Johannessen, Yuhui Tian, Chao Xing   +8 more
wiley   +1 more source

A Hypothalamic Oxytocinergic–Sympathetic Axis Couples Anxiety Dysregulation With Impaired Tendon–Bone Repair

Advanced Science, EarlyView.
RCI is associated with functional suppression of oxytocinergic neurons in the PVN. Reduced PVNOXT neuronal activity contributes to altered sympathetic regulation involving the IML–sympathetic chain pathway, accompanied by changes in norepinephrine signaling at the BTI.
Liyang Wan, Tingmo Huang, Liyue Zeng, Ruixue Du, Hengshuo Zhang, Shen Liu, Tao Zhang, Jianzhong Hu, Hongbin Lu   +8 more
wiley   +1 more source

Dynamics of 1D mass–spring system with a negative stiffness spring realized by magnets: Theoretical and experimental study

Theoretical and Applied Mechanics Letters, 2017
Realization of negative stiffness (NS) in damping low frequency acoustic and mechanical vibration is relevant in engineering applications. In this work, assemblage of two repelling magnets was used to produce negative magnetic spring (NMS). A mass–spring
Akintoye Olumide Oyelade, Ziwei Wang, Gengkai Hu   +2 more
doaj   +1 more source

Determining the Relationship Between Composition, Structure, and Device Properties of GexSe1‐x‐Based Selector‐Only Memory

Advanced Electronic Materials, EarlyView.
Composition‐dependent structural evolution in GeXSe1‐X selector‐only memory (SOM) is correlated with device switching behavior. Increasing Ge strengthens network rigidity, suppresses atomic motion, and stabilizes threshold switching, while narrowing the memory window. The revealed structure–property relationship provides a guideline for compositionally
Tien Anh Nguyen, Changdeok Han, Dipannita Ghosh, Suyong Chae, Moongyu Choi, Sanghyun Ban, Myoungsub Kim, Sangmin Yoo, Seung Hwan Lee, Sieun Chae   +9 more
wiley   +1 more source

Vibration analysis of a rotating closed section composite Timoshenko beam by using differential transform method

Journal of Applied and Computational Mechanics, 2015
This study introduces the Differential Transform Method (DTM) to analyse the free vibration response of a rotating, closed section, composite, Timoshenko beam which features material coupling between flapwise bending and torsional vibrations due to ply ...
Saeed Talebi, Hamed Uosofvand, Alireza Ariaei   +2 more
doaj   +1 more source