Results 51 to 60 of about 29,355 (269)

Temporal and Cell‐Specific Regulation of Synaptic Homeostasis by the Chromatin Remodeler Chd1

Advanced Science, EarlyView.
Chd1, the Drosophila homologue of mammalian CHD2 ‐ a gene linked to autism, epilepsy, and intellectual disability, is required for synaptic homeostatic plasticity. Chd1 in glia is necessary for the rapid induction of synaptic homeostasis, whereas Chd1 in motoneurons, muscle, and glia is critical for long‐term maintenance.
Danielle T. Morency, Tao Cui, Yimei Cai, Chloe Lok, Rachel E. Nokku, Ruoxian Huang, Grace L. Chu, Yumeng Xie, Saleem W. Abu‐Tayeh, Kaikai He, Chengjie Qiu, Junyi Wang, Paxton M. Paganelli, Ting Wang, Gabrielle Williams, Sreejith Nair, Huadong Pei, Dion K. Dickman, Stefano Vicini, Tingting Wang   +19 more
wiley   +1 more source

Particle Flow Simulation of the Mechanical Properties and Fracture Behavior of Multi-Mineral Rock Models with Different Fractal Dimensions

Fractal and Fractional
To study the effects of rock models with different fractal dimensions on their mechanical properties and fracture behavior, three representative numerical rock models, including the digital texture model, the Voronoi polygon model, and the Weibull ...
Run Shi, Huaiguang Xiao
doaj   +1 more source

Optimisation of fractal spaceframes under gentle compressive load

, 2013
The principle of hierarchical design is a prominent theme in many natural systems where mechanical efficiency is of importance. Here we establish the properties of a particular hierarchical structure, showing that high mechanical efficiency is found in ...
Farr, Robert, Mao, Yong, Rayneau-Kirkhope, Daniel   +2 more
core   +1 more source

Star Formation from Galaxies to Globules [PDF]

, 2002
The empirical laws of star formation suggest that galactic-scale gravity is involved, but they do not identify the actual triggering mechanisms for clusters in the final stages.
Aalto S., Battinelli P., Battinelli P., Battinelli P., Battinelli P., Bruce G. Elmegreen, Buat V., Comeron F., Coppin K. E. K., Crovisier J., de Geus E. J., Deul E. R., Dickey J. M., Doroshkevich A. G., Dutrey A., Elmegreen B. G., Elmegreen B. G., Elphick C., Falgarone E., Feitzinger J. V., Gallagher J. S., Gerritsen J. P. E., Goldreich P., Goudis C., Green D. A., Guiderdoni B., Heithausen A., Huttemeister S., Inoue A. K., Kimura T., Kuno N., Larson R. B., Larson R. B., Lazarian A., Lequeux J., Lubow S. H., Madore B. F., Mao R. Q., Marx-Zimmer M., Motte F., Padoan P., Sancisi R., Semelin B., Sleath J. P., Stutzki J., Tenjes P., Vader J. P., Yamaguchi R., Yamaguchi R., Yamaguchi R., Zielinsky M.   +50 more
core   +2 more sources

Time‐Resolved SAXS Reveals Distinct Millisecond Metal‐Induced Conformational Dynamics of Monomeric α‐Synuclein

Advanced Science, EarlyView.
Time‐resolved SAXS reveals how physiologically relevant metal ions shape the earliest conformational responses of monomeric α‐synuclein. Fe3+ induces rapid compaction, Cu2+ generates heterogeneous and partially folded ensembles, while Mn2+ and Zn2+ cause only modest changes.
Rebecca Sternke‐Hoffmann, Miriam Dos Santos Pinto, Xue Wang, Jinghui Luo   +3 more
wiley   +1 more source

Sub‐Unit‐Cell Logic Governs Transport in TPMS Architectures

Advanced Science, EarlyView.
ABSTRACT Next‐generation energy, thermal, and chemical systems require architectures capable of highly efficient transport across multiple length scales. Triply periodic minimal surfaces (TPMS), first conceptualized in 1865, offer inherently scalable geometries with exceptional transport potential, yet mechanistic links between topology and performance
Haozhang Zhong, Yipei He, Jiaxuan Wang, Chenyi Qian, Gerd E Schröder‐Turk, Raj Das, Junye Shi, Qi Tang, Zheda Ning, Wenjue Yi, Chuanwei Li, Jiangping Chen, Zeyao Chen, Binbin Yu, Jian LU, Jianfeng Gu, Ma Qian   +16 more
wiley   +1 more source

Numerical Simulation of Rockfill Materials Based on Fractal Theory

Applied Sciences, 2021
With the use of the particle flow code in two dimensions, a fractal model is established with the number of particles of different particle fractions used as the statistics to study the fractal characteristics of particle size distribution.
Hongxing Han, Yun Ma, Wei He, Weifang Yang, Xudong Fu   +4 more
doaj   +1 more source

Electric charging of dust aggregates and its effect on dust coagulation in protoplanetary disks

, 2009
Mutual sticking of dust aggregates is the first step toward planetesimal formation in protoplanetary disks. In spite that the electric charging of dust particles is well recognized in some contexts, it has been largely ignored in the current modeling of ...
Blum, Chapman, Dominik, Dominik, Glassgold, Igea, Inutsuka, Israelachvili, Jackson, Konopka, Lin, Sano, Sano, Satoshi Okuzumi, Suyama, Tanaka, Turner, Umebayashi, Umebayashi, Umebayashi, Umebayashi, Wada, Wolk   +22 more
core   +1 more source

Modelling a Coupled Thermoelectromechanical Behaviour of Contact Elements via Fractal Surfaces [PDF]

, 2016
A three-dimensional coupled thermoelectromechanical model for electrical connectors is here proposed to evaluate local stress and temperature distributions around the contact area of electric connectors under different applied loads.
GUARNIERI, MASSIMO, MAZZUCCO, GIANLUCA, MORO, FEDERICO   +2 more
core   +3 more sources

Bioinspired Hierarchical Architecture with Water Transport Channels for Strong Adhesion at the Sweating Interface

Advanced Science, EarlyView.
To address adhesion failure in sweaty epidermal electronics, this study proposes a cross‐species, multi‐scale biomimetic interface. By modeling staged wet adhesion, it integrates self‐regulating liquid bridges with directional drainage. This design ensures stable, high‐performance flexible sensing in complex physiological environments, offering a ...
Jieliang Zhao, Yu Xiang, Heng Wang, Huiqing Xu, Zhong Liu, Lulu Liang, Fengwen Jiang, Xuemei Chen, Wenzhong Wang, Chenqing Liu, Guodong Liu, Shaoze Yan, Xu Hou   +12 more
wiley   +1 more source