Results 101 to 110 of about 1,529,309 (330)

Haloarchaea swim slowly for optimal chemotactic efficiency in low nutrient environments

Nature Communications, 2020
Brownian motion places the ultimate limit on microorganisms’ ability to navigate. Thornton et al. show that Haloarchaea have a strategy of slow swimming and infrequent reorientation that exploits the randomising nature of Brownian motion to achieve ...
Katie L. Thornton, Jaimi K. Butler, Seth J. Davis, Bonnie K. Baxter, Laurence G. Wilson   +4 more
doaj   +1 more source

Brownian Brownian Motion-1

, 2008
A classical model of Brownian motion consists of a heavy molecule submerged into a gas of light atoms in a closed container. In this work we study a 2D version of this model, where the molecule is a heavy disk of mass M and the gas is represented by just one point particle of mass m = 1, which interacts with the disk and the walls of the container via ...
Chernov, N., Dolgopyat, D.
openaire   +2 more sources

Fractional Brownian Motions [PDF]

Acta Physica Polonica B, 2020
Properties of different models of fractional Brownian motions are discussed in detail. We shall collect here several possible ways of introducing and defining various possible fBms, discuss their properties, find how they are similar, and how they differ.
openaire   +3 more sources

High‐Throughput MicroED for Probing Ion Channel Dynamics

Advanced Science, EarlyView.
High‐throughput MicroED offers a new approach for visualizing ion channel dynamics. This approach reveals NaK’s sodium binding modes and NaK2CNG’s potassium‐induced selectivity filter dilation and gating. By capturing these distinct structures, this work challenges traditional models of ion channel permeation and selectivity. Abstract Ion channels play
Marc J Gallenito, Max TB Clabbers, Jieye Lin, Johan Hattne, Tamir Gonen   +4 more
wiley   +1 more source

High‐Specificity Spatiotemporal Cholesterol Detection by Quadrature Phase‐Shifted Polarization Stimulated Raman Imaging

Angewandte Chemie, EarlyView.
Utilizing quadrature phase modulation, the phase‐shifted polarization SRS (QP2‐SRS) microscope enables simultaneous measurement of the ρ‐related χ1111(3)$\chi _{1111}^{( 3 )}$ and χ1221(3)$\chi _{1221}^{( 3 )}$ components. In cholesterol molecular measurements, QP2‐SRS leverages the structural differences between cholesterol and other biomolecules to ...
Yongqing Zhang, Xinyu Deng, Siming Wang, Wenyu Zhou, Zhengyan Wu, Xiaobin Tang, Hyeon Jeong Lee, Delong Zhang   +7 more
wiley   +2 more sources

Karhunen-Loève Expansion for the Second Order Detrended Brownian Motion

Abstract and Applied Analysis, 2014
Based on the norm in the Hilbert Space L2[0,1], the second order detrended Brownian motion is defined as the orthogonal component of projection of the standard Brownian motion into the space spanned by nonlinear function subspace.
Yongchun Zhou, Xiaohui Ai, Minghao Lv, Boping Tian   +3 more
doaj   +1 more source

Macroscopic Structural Transition of Nickel Dithiolate Capsule with Uniaxial Magnetic Anisotropy in Water

Advanced Science, EarlyView.
An amphiphilic open‐shell d/π‐conjugated nickel dithiolate salt forms a bilayer capsule exhibiting uniaxial magnetic anisotropy, driven by spin–spin interactions. The capsule, exceptionally stable in aqueous environments, undergoes temperature‐dependent structural transitions representing, to the knowledge, the first observation of such behavior for ...
Tomoko Fujino, Mafumi Hishida, Masatoshi Ito, Toshikazu Nakamura, Mizue Asada, Naoya Kurahashi, Hisao Kiuchi, Yoshihisa Harada, Koji Harano, Rie Makiura, Kanokwan Jumtee Takeno, So Yokomori, Hiroshi Oike, Hatsumi Mori   +13 more
wiley   +1 more source

MOF Coating Enhances the Ion Tolerance of Micromotors

Angewandte Chemie, EarlyView.
This work reported a novel method to significantly enhance the ion tolerance of EMNMs using a MOF coating via controllable heteroepitaxial growth, enabling effective motion in high‐salt environments and propulsion through biological tissues under 980 nm NIR light, with potential applications in targeted drug delivery.
Leyan Ou, Kunfeng Liu, Yifan Zhang, Wanyuan Li, Zixian Liang, Dapeng Lei, Hao Sun, Mojun Chen, Jizhuang Wang, Jinyao Tang, Dan Li   +10 more
wiley   +2 more sources

Hydrothermal analysis of magneto hydrodynamic nanofluid flow between two parallel by AGM

Case Studies in Thermal Engineering, 2019
In this paper, heat and mass transfer process of steady nanofluid flow between two parallel plates is investigated in existence of uniform magnetic field.
R. Derakhshan, Ahmadreza Shojaei, Kh Hosseinzadeh, M. Nimafar, D.D. Ganji   +4 more
doaj  

Circulating Tumor Cells Shed Shearosome Extracellular Vesicles in Capillary Bifurcations That Activate Endothelial and Immune Cells

Advanced Science, EarlyView.
Using microfluidic models of capillary networks, this study discovered that fluid shear stresses on circulating tumor cells transiting through capillary‐sized bifurcations shed a novel class of shear‐dependent large extracellular vesicle, “shearosomes”, whose proteome comprises of over 3000 distinct proteins.
Angelos Vrynas, Salime Bazban‐Shotorbani, Sara Arfan, Karishma Satia, Brian Cunningham, Gauhar Sagindykova, Mymuna Ashna, Aoyu Zhang, Diana Visan, Aisher Chen, Teige Matthews‐Palmer, Mathew Carter, Fiona Blackhall, Kathryn L. Simpson, Caroline Dive, Paul Huang, Sam H. Au   +16 more
wiley   +1 more source