Results 101 to 110 of about 50,029 (292)

Type-dependent irreversible stochastic spin models for genetic regulatory networks at the level of promotion-inhibition circuitry

, 2015
We describe an approach to model genetic regulatory networks at the level of promotion-inhibition circuitry through a class of stochastic spin models that includes spatial and temporal density fluctuations in a natural way. The formalism can be viewed as
de Oliveira, Mário J., Mendonça, J. Ricardo G.   +1 more
core   +1 more source

Low‐Loss Far‐Infrared Surface Phonon Polaritons in Suspended SrTiO3 Nanomembranes

Advanced Functional Materials, EarlyView.
The low‐loss, highly confined, and thickness‐tunable surface phonon polaritons are demonstrated in the far‐infrared regime within transferable freestanding SrTiO3 membranes, achieving high figures of merit comparable to the previous record values from the vdW materials.
Konnor Koons, Hans A. Bechtel, Javier Taboada‐Gutiérrez, Reza Ghanbari, Yueyin Wang, Stephanie N. Gilbert Corder, Alexey B. Kuzmenko, Ruijuan Xu, Yin Liu   +8 more
wiley   +1 more source

Nonlinear time series analysis of nodulation factor induced calcium oscillations: evidence for deterministic chaos?

PLoS ONE, 2009
Legume plants form beneficial symbiotic interactions with nitrogen fixing bacteria (called rhizobia), with the rhizobia being accommodated in unique structures on the roots of the host plant.
Saul Hazledine, Jongho Sun, Derin Wysham, J Allan Downie, Giles E D Oldroyd, Richard J Morris   +5 more
doaj   +1 more source

Microbiome–host co-oscillation patterns in remodeling of colonic homeostasis during adaptation to a high-grain diet in a sheep model

Animal Microbiome, 2020
Background Ruminant gastrointestinal tract homeostasis deploys interactive microbiome–host metabolic communication and signaling axes to underpin the fitness of the host.
Limei Lin, Yue Wang, Lei Xu, Junhua Liu, Weiyun Zhu, Shengyong Mao   +5 more
doaj   +1 more source

Stochastic Binary Modeling of Cells in Continuous Time as an Alternative to Biochemical Reaction Equations

, 2011
We have developed a coarse-grained formulation for modeling the dynamic behavior of cells quantitatively, based on stochasticity and heterogeneity, rather than on biochemical reactions.
Akira, Shizuo, Kumagai, Yutaro, Standley, Daron M, Teraguchi, Shunsuke, Vandenbon, Alexis   +4 more
core   +1 more source

Tunable Thermoshrinkable Hydrogels for 4D Fabrication of Cell‐Seeded Channels

Advanced Functional Materials, EarlyView.
A thermoresponsive polymer with methacrylate groups for photo‐cross‐linking, based on polyethylene glycol, N‐isopropylacrylamide, and 2‐hydroxyethyl acrylate is synthetized to yield hydrogels that shrink upon temperature increase. The new polymer enables the fabrication of cell‐laden perfusable channels with diameters below 200 µm by combining ...
Greta Di Marco, Marc Falandt, Myriam Neumann, Martina Viola, Thibault Sampon, Marta G. Valverde, Anne Metje van Genderen, Silvia M. Mihaila, Cornelus F. van Nostrum, Bas G. P. van Ravensteijn, Riccardo Levato, Rosalinde Masereeuw, Tina Vermonden   +12 more
wiley   +1 more source

Investigation of Ultrasound-Mediated Intracellular Ca²⁺ Oscillations in HIT-T15 Pancreatic β-Cell Line

Cells, 2020
In glucose-stimulated insulin secretion (GSIS) of pancreatic β-cells, the rise of free cytosolic Ca2+ concentration through voltage-gated calcium channels (VGCCs) triggers the exocytosis of insulin-containing granules.
Chi Woo Yoon, Nan Sook Lee, Kweon Mo Koo, Sunho Moon, Kyosuk Goo, Hayong Jung, Changhan Yoon, Hae Gyun Lim, K. Kirk Shung   +8 more
doaj   +1 more source

Soft and Stiff 3D Microstructures by Step‐Growth Photopolymerization Using a Single Photoresin and Multi‐Photon Laser Printing

Advanced Functional Materials, EarlyView.
An additive and initiator‐free photoresin based on a prepolymer decorated with photoreactive step‐growth units as crosslinkers allows for the fabrication of 3D microstructures with strongly disparate mechanical properties ranging from stiff to soft. Abstract Manufacturing three‐dimensional (3D) microstructures with multi‐material properties via two ...
Tugce Nur Eren, Jiajie Liang, Jonathan Ludwig Günter Schneider, Martin Wegener, Jens Bauer, Katharina Ehrmann, Florian Feist, Christopher Barner‐Kowollik   +7 more
wiley   +1 more source

Oscillation arrest in the mouse somitogenesis clock presumably takes place via an infinite period bifurcation

, 2011
In this work we address the question of how oscillations are arrested in the mouse somitogenesis clock when the determination front reaches presomitic cells.
Santillán, Moisés, Zavala-López, Eder
core  

Design Principles of Pancreatic Islets: Glucose-dependent Coordination of Hormone Pulses

, 2015
Pancreatic islets are functional units involved in glucose homeostasis. The multicellular system comprises three main cell types; $\beta$ and $\alpha$ cells reciprocally decrease and increase blood glucose by producing insulin and glucagon pulses, while ...
Hara, Manami, Hoang, Danh-Tai, Jo, Junghyo   +2 more
core   +3 more sources