Results 121 to 130 of about 11,204,396 (257)

Thermal structure of a protostellar envelope

, 2015
A numerical hydrodynamical model for the evolution of spherically symmetric collapsing clouds, designed for the calculation of the thermal structure of these objects in both the prestellar and protostellar stages of their evolution, is presented ...
Fateeva, A. M., Pavlyuchenkov, Ya. N., Vorobyov, E. I., Zhilkin, A. G.   +3 more
core   +1 more source

Intermediate Resistive State in Wafer‐Scale Vertical MoS2 Memristors Through Lateral Silver Filament Growth for Artificial Synapse Applications

Advanced Functional Materials, EarlyView.
In MOCVD MoS2 memristors, a current compliance‐regulated Ag filament mechanism is revealed. The filament ruptures spontaneously during volatile switching, while subsequent growth proceeds vertically through the MoS2 layers and then laterally along the van der Waals gaps during nonvolatile switching.
Yuan Fa, Milan Buttberg, Ke Ran, Rana Walied Ahmad, Dennis Braun, Lukas Völkel, Jimin Lee, Sofía Cruces, Bart Macco, Bárbara Canto, Holger Lerch, Thorsten Wahlbrink, Holger Kalisch, Michael Heuken, Andrei Vescan, Joachim Mayer, Zhenxing Wang, Ilia Valov, Stephan Menzel, Max C. Lemme   +19 more
wiley   +1 more source

A Cytosine Methytransferase Modulates the Cell Envelope Stress Response in the Cholera Pathogen

PLoS Genetics, 2015
DNA methylation is a key epigenetic regulator in all domains of life, yet the effects of most bacterial DNA methyltransferases on cellular processes are largely undefined. Here, we used diverse techniques, including bisulfite sequencing, transcriptomics,
Michael C. Chao, Shijia Zhu, S. Kimura, B. Davis, E. Schadt, Gang Fang, M. Waldor   +6 more
semanticscholar   +1 more source

Nano‐ and Micro‐Sized Solid Materials Used as Antiviral Agents

Advanced Functional Materials, EarlyView.
Due to the rise of viral infections in humans and possible viral outbreaks, the use of nano‐ or micro‐sized materials as antiviral agents is rapidly increasing. This review explores their antiviral properties against RNA and DNA viruses, either as a prevention or a treatment tool, by delving into their mechanisms of action and how to properly assess ...
Orfeas‐Evangelos Plastiras, Imelda Raczkiewicz, Peggy Bouquet, Jean‐Philippe Dacquin, Jeremy Dhainaut, Anne Goffard, Christophe Volkringer   +6 more
wiley   +1 more source

Pattern formation of reaction-diffusion system having self-determined flow in the amoeboid organism of Physarum plasmodium

, 1998
The amoeboid organism, the plasmodium of Physarum polycephalum, behaves on the basis of spatio-temporal pattern formation by local contraction-oscillators.
A. B. Rovinsky, A. B. Rovinsky, A. C. Newell, A. Grebecki, A. J. Perumpanani, A. Takamatsu, D. A. Pavlov, D. A. Smith, E. F. Keller, E. F. Keller, G. F. Oster, H. T. Moon, H. T. Moon, Hiroyasu Yamada, J. T. Stuart, K. Matsumoto, K. Nozaki, K. Nozaki, K. Takahashi, L. R. Keefe, L. R. Keefe, M. Ishigami, M. Menzinger, M. Mimura, Masami Ito, N. Kamiya, N. Kamiya, S. Ei, S. Ogihara, T. Höfer, T. Nakagaki, T. Ueda, T. Ueda, Toshiyuki Nakagaki, V. A. Teplov, W. Naib-Majani, W. van Saarloos, Y. Kuramoto, Y. Miyake, Y. Miyake, Y. Miyake, Y. Yoshimoto, Y. Yoshimoto, Y. Yoshimoto, Z. Baranowski   +44 more
core   +1 more source

Pathophysiological Implications of Cell Envelope Structure in Mycobacterium tuberculosis and Related Taxa

, 2015
Mycobacterium tuberculosis has a cell envelope incorporating a peptidoglycan-linked arabinogalactan esterified by long-chain mycolic acids. A range of “free” lipids are associated with the “bound” mycolic acids, producing an effective envelope outer ...
H. H. Wu, V. Nataraj, H. Donoghue, M. Ridell, Motoko Watanabe, Luke J. Alderwick, A. Bhatt, G. Besra   +7 more
semanticscholar   +1 more source

MagPiezo: A Magnetogenetic Platform for Remote Activation of Endogenous Piezo1 Channels in Endothelial Cells

Advanced Functional Materials, EarlyView.
MagPiezo enables wireless activation of endogenous Piezo1 channels without genetic modification using 19 nm magnetic nanoparticles and low‐intensity magnetic fields. It generates torque forces at the piconewton scale to trigger mechanotransduction in endothelial cells, standing as a novel platform to interrogate and manipulate Piezo1 activity in vitro.
Susel Del Sol‐Fernández, Mariarosaria De Simone, Yilian Fernández‐Afonso, Daniel Garcia‐Gonzalez, Pablo Martínez‐Vicente, Thomas van Zanten, Raluca M. Fratila, Maria Moros   +7 more
wiley   +1 more source

Fine-Tuning of the Cpx Envelope Stress Response Is Required for Cell Wall Homeostasis in Escherichia coli

mBio, 2016
The envelope of Gram-negative bacteria is an essential compartment that constitutes a protective and permeability barrier between the cell and its environment.
Antoine Delhaye, Jean-François Collet, Géraldine Laloux   +2 more
doaj   +1 more source

Archaeal viruses at the cell envelope: entry and egress

Frontiers in Microbiology, 2015
The cell envelope represents the main line of host defense that viruses encounter on their way from one cell to another. The cytoplasmic membrane in general is a physical barrier that needs to be crossed both upon viral entry and exit. Therefore, viruses
E. Quemin, Tessa E. F. Quax
semanticscholar   +1 more source

Dual‐Site Ru Single‐Atoms and RuP Nanoclusters on N, P, and B Co‐Doped Porous Carbon for Efficient Alkaline HER and AEM Water Electrolysis

Advanced Functional Materials, EarlyView.
Ru single atoms and RuP nanoclusters are co‐anchored in N, P, and B co‐doped porous carbon nanospheres via in situ carbonization/phosphidation of a boronate polymer precursor. RuP activates water, while nearby Ru single atoms accelerate H2 formation through H* transfer. The catalyst delivers low overpotential and high durability in alkaline HER and AEM
Xiaohong Wang, Juguo Dai, Dongxu Li, Jianghua Wu, Hucheng Fu, Yiting Xu, Xueqiang Qi, Qian Xue, Yanbin Shen, Xiaoqing Pan, Conghui Yuan, Shuifen Xie, Andreu Cabot, Lizong Dai   +13 more
wiley   +1 more source