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The development of hydrogels for protein delivery requires protein-hydrogel interactions that cause minimal disruption of the protein's biological activity. Biological activity can be influenced by factors such as orientation and…

软凝聚态物质 · 物理学 2018-08-14 Shohini Sen-Britain , Wesley Hicks , Robert Hard , Joseph A. Gardella

The development of kinetic energy functional (KEF) is known as one of the most difficult subjects in the electronic density functional theory (DFT). In particular, the sound description of chemical bonds using a KEF is a matter of great…

化学物理 · 物理学 2025-03-03 Hideaki Takahashi

\emph{In vitro} experiments in which tumour cells are seeded in a gelatinous medium, or hydrogel, show how mechanical interactions between tumour cells and the tissue in which they are embedded, together with local levels of an…

组织与器官 · 定量生物学 2022-06-13 Gopikrishnan C. Remesan , Jennifer A Flegg , Helen M Byrne

A significant hallmark of hypertrophic cardiomyopathy (HCM) is fiber disarray, which is associated with various cardiac events such as heart failure. Quantifying fiber disarray remains critical for understanding the disease s complex…

组织与器官 · 定量生物学 2025-07-04 Mohammad Mehri , Kenneth S. Campbell , Lik Chuan Lee , Jonathan F. Wenk

Hydrogen embrittlement (HE) poses a significant challenge in the mechanical integrity of iron and its alloys. This study explores the influence of hydrogen atoms on two distinct grain boundaries (GBs), $\Sigma37$ and $\Sigma3$, in…

材料科学 · 物理学 2024-07-04 Aynour Khosravi , Jun Song , Normand Mousseau

Mechanical stretching of secondary structures is studied through molecular dynamics simulations of a Go-like model. Force vs. displacement curves are studied as a function of the stiffness and velocity of the pulling device. The succession…

软凝聚态物质 · 物理学 2007-05-23 Marek Cieplak , Trinh Xuan Hoang , Mark O. Robbins

In earlier work, we have developed a Kinetic Field Theory (KFT) for cosmological structure formation and showed that the non-linear density-fluctuation power spectrum known from numerical simulations can be reproduced quite well even if…

宇宙学与河外天体物理 · 物理学 2017-09-13 Matthias Bartelmann , Felix Fabis , Elena Kozlikin , Robert Lilow , Johannes Dombrowski , Julius Mildenberger

We review and compare the reconstruction methods of the inclusive deep inelastic scattering variables used at HERA. We introduce a new prescription, the $\Sigma$ method, which allows to measure the structure function of the proton…

高能物理 - 实验 · 物理学 2009-10-22 Ursula Bassler , Gregorio Bernardi

In the diffusion-collision model, the unfolding rates are given by the likelihood of secondary structural cluster dissociation. In this work, we introduce an unfolding rate calculation for proteins whose secondary structural elements are…

软凝聚态物质 · 物理学 2009-11-07 Chris Beck , Xavier Siemens

There is ample observational evidence that the star formation rate (SFR) surface density, Sigma_SFR, is closely correlated with the surface density of molecular hydrogen, Sigma_H2. This empirical relation holds both for galaxy-wide averages…

宇宙学与河外天体物理 · 物理学 2015-06-04 Robert Feldmann , Nickolay Y. Gnedin , Andrey V. Kravtsov

Modeling hydrogen embrittlement (HE) is a long-standing engineering challenge, which has experienced significant developments in recent years. Yet, there is a gap in modeling the effect of the kinetics of hydrogen segregation at…

材料科学 · 物理学 2026-04-08 Abdelrahman Hussein , Yann Charles , Jukka Kömi , Vahid Javaheri

We used by in-situ high energy X-ray diffraction to inestigate the deformation behavior of Grade 2 commercially pure titanium that was hydrogen charged to form hydrides. The results showed that the peak broadening in the diffraction…

材料科学 · 物理学 2022-01-26 Qing Tan , Zhiran Yan , Runguang Li , Yang Ren , Yandong Wang , Baptiste Gault , Stoichko Antonov

The kagome Hubbard model (KHM) is a paradigmatic example of a frustrated two-dimensional model. While its strongly correlated regime, described by a Heisenberg model, is of topical interest due to its enigmatic prospective spin-liquid…

强关联电子 · 物理学 2021-11-04 Josef Kaufmann , Klaus Steiner , Richard T. Scalettar , Karsten Held , Oleg Janson

We studied the effects of epidermal growth factor receptor (EGFR) density on tumor growth dynamics, both on the sub- and the multi-cellular level using our previously developed model. This algorithm simulates the growth of a brain tumor…

细胞行为 · 定量生物学 2007-05-23 Chaitanya A. Athale , Thomas S. Deisboeck

Elastic network models (ENM) and constraint-based, topological rigidity analysis are two distinct, coarse-grained approaches to study conformational flexibility of macromolecules. In the two decades since their introduction, both have…

生物大分子 · 定量生物学 2018-02-27 Dominik Budday , Sigrid Leyendecker , Henry van den Bedem

Destructive mechanical breakdowns and fractures are ubiquitous events in driven physical matter; living tissues, by contrast, can rupture repeatedly while restoring integrity. Here we study rupture repair interplay in regenerating Hydra…

生物物理 · 物理学 2026-03-03 Oded Agam , Erez Braun

Protein function often involves changes between different conformations. Central questions are how these conformational changes are coupled to the binding or catalytic processes during which they occur, and how they affect the catalytic…

生物大分子 · 定量生物学 2012-05-11 Thomas R. Weikl , David D. Boehr

Kidney branching morphogenesis has been studied extensively, but the mechanism that defines the branch points is still elusive. Here we obtained a 2D movie of kidney branching morphogenesis in culture to test different models of branching…

组织与器官 · 定量生物学 2013-07-02 Srivathsan Adivarahan , Denis Menshykau , Odysse Michos , Dagmar Iber

A reliable prediction of 3D protein structures from sequence data remains a big challenge due to both theoretical and computational difficulties. We have previously shown that our kinetostatic compliance method (KCM) implemented into the…

计算工程、金融与科学 · 计算机科学 2017-12-27 Pouya Tavousi , Morad Behandish , Horea T. Ilies , Kazem Kazerounian

This study clarifies the hydrogen embrittlement (HE) behavior in a 1.5 GPa ferrite-martensite dual-phase (DP) steel. Hydrogen pre-charging (3.8 mass ppm diffusible hydrogen), followed by slow strain tensile testing (10-4 s-1), resulted in a…

材料科学 · 物理学 2025-09-15 Rama Srinivas Varanasi , Motomichi Koyama , Shuya Chiba , Saya Ajito , Eiji Akiyama
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