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相关论文: Unfolding Rates for the Diffusion-Collision Model

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Molecular simulations have provided valuable insight into the microscopic mechanisms underlying homogeneous ice nucleation. While empirical models have been used extensively to study this phenomenon, simulations based on first-principles…

We compute profile likelihoods for a stochastic model of diffusive transport motivated by experimental observations of heat conduction in layered skin tissues. This process is modelled as a random walk in a layered one-dimensional material,…

Predicting protein secondary structures such as alpha helices, beta sheets, and coils from amino acid sequences is essential for understanding protein function. This work presents a transformer-based model that applies attention mechanisms…

人工智能 · 计算机科学 2025-12-10 Manzi Kevin Maxime

A kinetic model for the nucleation mechanism of protein folding is proposed. A protein is modeled as a heteropolymer consisting of hydrophobic and hydrophilic beads with equal constant bond lengths and bond angles. The total energy of the…

生物物理 · 物理学 2007-05-23 Yuri S. Djikaev

The concept of a protein diffusing in its free energy folding landscape has been fruitful for both theory and experiment. Yet the choice of the reaction coordinate (RC) introduces an undesirable degree of arbitrariness into the problem. We…

生物物理 · 物理学 2015-05-19 Michael Hinczewski , Yann von Hansen , Joachim Dzubiella , Roland R. Netz

We concider, the blow-up solutions for a coupled reaction diffusion system with gradient terms. The main purpose is to understand whether the gradient terms effect the blow-up properties. We derive the upper and lower blow-up rate estimates…

偏微分方程分析 · 数学 2012-11-29 Maan A. Rasheed , Miroslav Chlebik

Finite mixture models are fitted to spherical data. Kent distributions are used for the components of the mixture because they allow considerable flexibility. Previous work on such mixtures has used an approximate maximum likelihood…

In the past years, the folding kinetics of many small single-domain proteins has been characterized by mutational Phi-value analysis. In this article, a simple, essentially parameter-free model is introduced which derives folding routes…

生物大分子 · 定量生物学 2007-05-23 Thomas R. Weikl

We present a statistical mechanics treatment of the stability of globular proteins which takes explicitly into account the coupling between the protein and water degrees of freedom. This allows us to describe both the cold and the warm…

凝聚态物理 · 物理学 2009-10-30 Alex Hansen , Mogens H. Jensen , Kim Sneppen , Giovanni Zocchi

We refine a protein model that reproduces fundamental aspects of protein thermodynamics. The model exhibits two transitions, hot and cold unfolding. The number of relevant parameters is reduced to three: 1) binding energy of folding…

凝聚态物理 · 物理学 2007-05-23 Audun Bakk , Johan S. Hoye , Alex Hansen , Kim Sneppen

In this study, the additional heat capacity which appear during the water dissociation of the proteins that are one of the soft materials, have been considered by the statistical mechanical methods. For this purpose, taking the electric…

统计力学 · 物理学 2007-05-23 G. Oylumluoglu , F. Buyukkilic , D. Demirhan

A typical protein structure is a compact packing of connected alpha-helices and/or beta-strands. We have developed a method for generating the ensemble of compact structures a given set of helices and strands can form. The method is tested…

统计力学 · 物理学 2009-11-07 Eldon Emberly , Ned Wingreen , Chao Tang

The viscosity dependence of the folding rates for four sequences (the native state of three sequences is a beta-sheet, while the fourth forms an alpha-helix) is calculated for off-lattice models of proteins. Assuming that the dynamics is…

软凝聚态物质 · 物理学 2009-10-30 D. K. Klimov , D. Thirumalai

The microscopic approach of fission rates and neutron emission rates in compound nuclei have been applied to $^{258}$No and $^{286}$Cn. The microscopic framework is based on the finite-temperature Skyrme-Hartree-Fock+BCS calculations, in…

核理论 · 物理学 2017-10-25 Yi Zhu , Junchen Pei

The behavior of proteins near interfaces is relevant for biological and medical purposes. Previous results in bulk show that, when the protein concentration increases, the proteins unfold and, at higher concentrations, aggregate. Here, we…

软凝聚态物质 · 物理学 2021-01-19 David March , Valentino Bianco , Giancarlo Franzese

Demixing of binary fluids subjected to slow temperature ramps shows repeated waves of nucleation which arise as a consequence of the competition between generation of supersaturation by the temperature ramp and relaxation of supersaturation…

统计力学 · 物理学 2012-10-16 Izabella J. Benczik , Jürgen Vollmer

Two-state cooperativity is an important characteristic in protein folding. It is defined by a depletion of states lying energetically between folded and unfolded conformations. While there are different ways to test for two-state…

生物大分子 · 定量生物学 2015-05-28 Tristan Bereau , Markus Deserno , Michael Bachmann

The temperature-dependent diffusion coefficients of interstitial helium atom in $\alpha$-Ti are predicted using the transition state theory. The microscopic parameters in the pre-factor and activation energy of the impurity diffusion…

材料科学 · 物理学 2015-06-16 Yong Lu , Fawei Zheng , Ping Zhang

We study the identified particle ratios produced at mid-rapidity in heavy ion collisions, along with their correlations with the collision energy. We employ our earlier proposed Unified Statistical Thermal Freeze-out Model (USTFM), which…

高能物理 - 唯象学 · 物理学 2015-11-18 Inam-ul Bashir , Saeed Uddin

The formation of clusters in supercooled liquids close to the glass transition temperature is described by rate equations in which the coefficients are determined on physical grounds rather than in terms of thermodynamic quantities such as…

无序系统与神经网络 · 物理学 2007-05-23 V. Halpern