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NMDA receptors are ion channels activated by the neurotransmitter glutamate in the mammalian brain and are important in synaptic function and plasticity, but are also found in extrasynaptic locations and influence neuronal excitability.…

神经元与认知 · 定量生物学 2017-12-13 Christian Scheppach

Neuronal networking supports complex brain functions, with neurotransmitters facilitating communication through chemical synapses. The release probability of neurotransmitters varies and is influenced by pre-synaptic neuronal activity.…

神经元与认知 · 定量生物学 2024-06-12 Zihan Liu , Flavia Nathaline Chanentia , Patteera Supvithayanong , Chi Chung Alan Fung

We construct a fast, transferable, general purpose, machine-learning interatomic potential suitable for large-scale simulations of $N_2$. The potential is trained only on high quality quantum chemical molecule-molecule interactions, no…

计算物理 · 物理学 2024-05-10 Marcin Kirsz , Ciprian G. Pruteanu , Peter I. C. Cooke , Graeme J. Ackland

This paper presents an extension of the BrainScaleS accelerated analog neuromorphic hardware model. The scalable neuromorphic architecture is extended by the support for multi-compartment models and non-linear dendrites. These features are…

神经与进化计算 · 计算机科学 2017-03-22 Johannes Schemmel , Laura Kriener , Paul Müller , Karlheinz Meier

The in silico exploration of chemical, physical and biological systems requires accurate and efficient energy functions to follow their nuclear dynamics at a molecular and atomistic level. Recently, machine learning tools gained a lot of…

化学物理 · 物理学 2020-08-26 Silvan Käser , Oliver T. Unke , Markus Meuwly

Non-adiabatic molecular dynamics (NAMD) simulations have become an indispensable tool for investigating excited-state dynamics in solids. In this work, we propose a general framework, N$^2$AMD which employs an E(3)-equivariant deep neural…

Uncompetitive antagonists of the N-methyl D-aspartate receptor (NMDAR) have demonstrated therapeutic benefit in the treatment of neurological diseases such as Parkinson's and Alzheimer's, but some also cause dissociative effects that have…

DNA is an astonishing material that can be used as a molecular building block to construct periodic arrays and devices with nanoscale accuracy and precision. Here, we present simple bead-spring model of DNA nanostars having three, four and…

软凝聚态物质 · 物理学 2021-10-22 Supriyo Naskar , Dhiraj Bhatia , Shiang-Tai Lin , Prabal K. Maiti

Stacking excessive layers in DNN results in highly underdetermined system when training samples are limited, which is very common in medical applications. In this regard, we present a framework capable of deriving an efficient…

机器学习 · 计算机科学 2025-03-04 Seunghun Baek , Injun Choi , Mustafa Dere , Minjeong Kim , Guorong Wu , Won Hwa Kim

In this paper, we explore osmotic transport by means of molecular dynamics (MD) simulations. We first consider osmosis through a membrane, and investigate the reflection coefficient of an imperfectly semi-permeable membrane, in the dilute…

介观与纳米尺度物理 · 物理学 2017-05-18 Hiroaki Yoshida , Sophie Marbach , Lydéric Bocquet

Neuron-level interpretation in large language models (LLMs) is fundamentally challenged by widespread polysemanticity, where individual neurons respond to multiple distinct semantic concepts. Existing single-pass interpretation methods…

计算与语言 · 计算机科学 2026-01-08 Weiqi Liu , Yongliang Miao , Haiyan Zhao , Yanguang Liu , Mengnan Du

Vibrational energy transfer of the amide I mode of N-methylacetamide (NMA) is studied theoretically using the vibrational configuration interaction method. A quartic force field of NMA is constructed at the B3LYP/6-31G+(d) level of theory…

生物大分子 · 定量生物学 2009-11-13 Hiroshi Fujisaki , Kiyoshi Yagi , Kimihiko Hirao , John E. Straub

We study dynamical optical response of a nematic liquid crystal cell that undergoes the splay-bend transition after applying the voltage across the cell. We formulate a simplified model that takes into account both the flexoelectric…

材料科学 · 物理学 2007-05-23 Peizhi Xu , Vladimir Chigrinov , Alexei D. Kiselev

Various neuroimaging studies suffer from small sample size problem which often limit their reliability. Meta-analysis addresses this challenge by aggregating findings from different studies to identify consistent patterns of brain activity.…

机器学习 · 计算机科学 2025-11-27 Seunghun Baek , Jaejin Lee , Jaeyoon Sim , Minjae Jeong , Won Hwa Kim

A mediation analysis approach is proposed for multiple exposures, multiple mediators, and a continuous scalar outcome under the linear structural equation modeling framework. It assumes that there exist orthogonal components that…

统计方法学 · 统计学 2022-09-12 Yi Zhao

Here, we propose a platform based on ultra-cold fermionic molecules trapped in optical lattices to simulate nonadiabatic effects, as they appear in certain molecular dynamical problems. The idea consists of a judicious choice of two…

量子气体 · 物理学 2025-09-25 Javier Argüello-Luengo , Alejandro González-Tudela , J. Ignacio Cirac

Recent advance in nanotechnology has led to rapid advances in nanofluidics, which has been established as a reliable means for a wide variety of applications, including molecular separation, detection, crystallization and biosynthesis.…

定量方法 · 定量生物学 2015-03-03 Jin Kyoung Park , Kelin Xia , Guo-Wei We

Molecular design requires systematic and broadly applicable methods to extract structure-property relationships. The focus of this study is on learning thermodynamic properties from molecular-liquid simulations. The methodology relies on an…

材料科学 · 物理学 2023-07-04 Bernadette Mohr , Diego van der Mast , Tristan Bereau

We describe N-body networks, a neural network architecture for learning the behavior and properties of complex many body physical systems. Our specific application is to learn atomic potential energy surfaces for use in molecular dynamics…

机器学习 · 计算机科学 2018-03-06 Risi Kondor

In drug discovery, molecular dynamics (MD) simulation for protein-ligand binding provides a powerful tool for predicting binding affinities, estimating transport properties, and exploring pocket sites. There has been a long history of…

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