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In this work we monitor the catalytic mechanism of P-glycoprotein (Pgp) using single-molecule fluorescence resonance energy transfer (FRET). Pgp, a member of the ATP binding cassette family of transport proteins, is found in the plasma…

生物大分子 · 定量生物学 2015-05-27 Stefan Ernst , Brandy Verhalen , Nawid Zarrabi , Stephan Wilkens , Michael Boersch

The SARS-CoV-2 pandemic has added new urgency to the study of viral mechanisms of infection. But while vaccines offer a measure of protection against this specific outbreak, a new era of pandemics has been predicted. In addition to this,…

生物物理 · 物理学 2022-10-25 Betony Adams , Ilya Sinayskiy , Rienk van Grondelle , Francesco Petruccione

We study the influence of a linear energy bias on a non-equilibrium excitation on a chain of molecules coupled to local phonons (a tilted Holstein model) using both a random-walk rate kernel theory and a nonperturbative, massively…

量子物理 · 物理学 2022-07-29 R. Kevin Kessing , Pei-Yun Yang , Salvatore R. Manmana , Jianshu Cao

Integrated Sensing and Communication (ISAC) is considered a key technology in 6G networks. An accurate sensing channel model is crucial for the design and sensing performance evaluation of ISAC systems. The widely used Geometry-Based…

信号处理 · 电气工程与系统科学 2025-04-15 Yuxiang Zhang , Jianhua Zhang , Jiwei Zhang , Yuanpeng Pei , Yameng Liu , Lei Tian , Tao Jiang , Guangyi Liu

The goal of item response theoretic (IRT) models is to provide estimates of latent traits from binary observed indicators and at the same time to learn the item response functions (IRFs) that map from latent trait to observed response.…

机器学习 · 统计学 2020-12-23 JBrandon Duck-Mayr , Roman Garnett , Jacob M. Montgomery

We present a theoretical analysis that associates the resonances of extraordinary acoustic Raman (EAR) spectroscopy [Wheaton et al., Nat Photon 9, 68 (2015)] with the collective modes of proteins. The theory uses the anisotropic elastic…

生物物理 · 物理学 2016-09-28 Timothy DeWolf , Reuven Gordon

Clinical trials screening KRAS G12D protein for 30 pancreatic ductal adenocarcinoma (PDAC) patients and 30 healthy donors were conducted utilizing an AlGaN/GaN high electron mobility transistor (HEMT) biosensor. All resistance change ratios…

Local patterns of excitation and inhibition that can generate neural waves are studied as a computational mechanism underlying the organization of neuronal tunings. Sparse coding algorithms based on networks of excitatory and inhibitory…

神经元与认知 · 定量生物学 2022-05-30 Leon Lufkin , Ashish Puri , Ganlin Song , Xinyi Zhong , John Lafferty

The integration of emotional intelligence in machines is an important step in advancing human-computer interaction. This demands the development of reliable end-to-end emotion recognition systems. However, the scarcity of public affective…

人机交互 · 计算机科学 2023-06-07 Alireza F. Nia , Vanessa Tang , Gonzalo Maso Talou , Mark Billinghurst

Nonlinear effects in protein dynamics are expected to play role in function, particularly of allosteric nature, by facilitating energy transfer between vibrational modes. A recently proposed method focusing on the non-Gaussian shape of the…

生物大分子 · 定量生物学 2022-03-23 B. Kav , M. Ozturk , A. Kabakcioglu

This paper describes a framework for the development of an integrative cognitive system based on probabilistic generative models (PGMs) called Neuro-SERKET. Neuro-SERKET is an extension of SERKET, which can compose elemental PGMs developed…

The excitability property of spiking neurons describes their capability to output an action potential as a real-time response to an input synaptic excitation current and is central to the event-based neuromorphic computing paradigm. The…

统计力学 · 物理学 2025-11-18 Léopold Van Brandt , Grégoire Brandsteert , Denis Flandre

In the study of neural network interpretability, there is growing evidence to suggest that relevant features are encoded across many neurons in a distributed fashion. Making sense of these distributed representations without knowledge of…

机器学习 · 计算机科学 2025-01-28 Kyle Reing , Greg Ver Steeg , Aram Galstyan

We show that individual vibrational modes in single-molecule junctions with asymmetric molecule-lead coupling can be selectively excited by applying an external bias voltage. Thereby, a non-statistical distribution of vibrational energy can…

介观与纳米尺度物理 · 物理学 2017-09-13 R. Volkovich , R. Härtle , M. Thoss , U. Peskin

Glioblastoma (GBM) is a highly aggressive primary brain tumor with limited therapeutic options and poor prognosis. The methylation status of the O6-methylguanine-DNA methyltransferase (MGMT) gene promoter is a critical molecular biomarker…

机器学习 · 计算机科学 2026-01-13 Hasan M Jamil

Graphene nanoribbons (GNRs) have attracted considerable interest as their atomically tunable structure makes them promising candidates for future electronic devices. However, obtaining detailed information about the length of GNRs has been…

Neural ray tracing (RT) has emerged as a promising paradigm for channel modeling by combining physical propagation principles with neural networks. It enables high modeling accuracy and efficiency. However, current neural RT methods face…

机器学习 · 计算机科学 2025-06-24 Kejia Bian , Meixia Tao , Shu Sun , Jun Yu

This paper proposes a neuronal circuitry layout and synaptic plasticity principles that allow the (pyramidal) neuron to act as a "combinatorial switch". Namely, the neuron learns to be more prone to generate spikes given those combinations…

生物物理 · 物理学 2017-05-09 Marat M. Rvachev

We investigate the origin of purported "spin accumulation" signals observed in local "three-terminal" (3T) measurements of ferromagnet/insulator/n-Si tunnel junctions using inelastic electron tunneling spectroscopy (IETS). Voltage bias and…

材料科学 · 物理学 2014-10-02 Holly N. Tinkey , Pengke Li , Ian Appelbaum

Scattering of electrons by localized spins is the ultimate process enabling electrical detection and control of the magnetic state of a spin-doped material. At the molecular scale, this scattering is mediated by the electronic orbitals…