Results 41 to 50 of about 1,303,705 (298)

Sub-Alfvenic Non-Ideal MHD Turbulence Simulations with Ambipolar Diffusion: II. Comparison with Observation, Clump Properties, and Scaling to Physical Units

, 2010
Ambipolar diffusion is important in redistributing magnetic flux and in damping Alfven waves in molecular clouds. The importance of ambipolar diffusion on a length scale $\ell$ is governed by the ambipolar diffusion Reynolds number, $\rad=\ell/\lad ...
Ballesteros-Paredes, Ballesteros-Paredes, Barranco, Bastian, Bergin, Burgers, Caselli, Christopher F. McKee, Crutcher, Fatuzzo, Gammie, Goodman, Heiles, Hennebelle, Heyer, Heyer, Iroshnikov, Jackson, Klessen, Klessen, Krumholz, Larson, Li, Li, Li, Mac Low, Mac Low, Matzner, Mestel, Mouschovias, Myers, Nakamura, Nakano, Onishi, Ostriker, Padoan, Padoan, Padoan, Padoan, Padoan, Pak Shing Li, Plume, Richard I. Klein, Spitzer, Tassis, Tassis, Troland, Tóth, Vázquez-Semadeni, Vázquez-Semadeni, Vázquez-Semadeni, Vázquez-Semadeni, Wakelam, Williams, Williams, Zweibel, Zweibel   +56 more
core   +2 more sources

Onsager reciprocity in premelting solids [PDF]

, 2009
The diffusive motion of foreign particles dispersed in a premelting solid is analyzed within the framework of irreversible thermodynamics. We determine the mass diffusion coefficient, thermal diffusion coefficient and Soret coefficient of the particles ...
Peppin, S. S. L., Spannuth, M. J., Wettlaufer, J. S.   +2 more
core   +2 more sources

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Reduced-Order Modeling of Diffusive Effects on the Dynamics of Bubbles [PDF]

, 2003
The Rayleigh-Plesset equation and its extensions have been used extensively to model spherical bubble dynamics, yet radial diffusion equations must be solved to correctly capture damping effects due to mass and thermal diffusion.
Brennen, C. E., Colonius, T., Preston, A.   +2 more
core  

Diffusion in a multi-component Lattice Boltzmann Equation model

, 1996
Diffusion phenomena in a multiple component lattice Boltzmann Equation (LBE) model are discussed in detail. The mass fluxes associated with different mechanical driving forces are obtained using a Chapman-Enskog analysis.
A. K. Gunstensen, C. Appert, D. H. Rothman, D. O. Martínez, E. G. Flekko/y, E. G. Flekko/y, Gary Doolen, H. Chen, P. L. Bhatnagar, R. B. Bird, R. Benzi, R. Holme, S. Chapman, S. Hou, S. Wolfram, U. Frisch, X. Shan, X. Shan, X. Shan, Xiaowen Shan, Y. H. Qian   +20 more
core   +2 more sources

A Mass-transfer Particle-tracking Method for Simulating Transport with Discontinuous Diffusion Coefficients

, 2020
The problem of a spatially discontinuous diffusion coefficient ($D(\boldsymbol x)$) is one that may be encountered in hydrogeologic systems due to natural geological features or as a consequence of numerical discretization of flow properties.
Bolster, Diogo, Engdahl, Nicholas B., Pankavich, Stephen D., Schmidt, Michael J.   +3 more
core   +1 more source

Adaptaquin is selectively toxic to glioma stem cells through disruption of iron and cholesterol metabolism

Molecular Oncology, EarlyView.
Adaptaquin selectively kills glioma stem cells while sparing differentiated brain cells. Transcriptomic and proteomic analyses show Adaptaquin disrupts iron and cholesterol homeostasis, with iron chelation amplifying cytotoxicity via cholesterol depletion, mitochondrial dysfunction, and elevated reactive oxygen species.
Adrien M. Vaquié, Davod R. Shah, Eliane E. S. Brechbühl, Michael McNicholas, Zhaoyang Xu, John H. Stockley, Laura Morcom, Diana Gold Diaz, Gemma C. Girdler, Rachel V. Seear, Gabriel Balmus, Rajiv R. Ratan, Harry Bulstrode, James A. Nathan, Manav Pathania, Kevin M. Brindle, David H. Rowitch   +16 more
wiley   +1 more source

Contact Melting of Metals Explained via the Theory of Quasi-Liquid Layer

Applied Sciences, 2020
It has been shown that the contact melting rate for metals is determined by the fact that at least one of them has a quasi-liquid layer on the surface.
Alexey V. Melkikh
doaj   +1 more source

Magnetically Regulated Star Formation in Turbulent Clouds

, 2004
We investigate numerically the combined effects of supersonic turbulence, strong magnetic fields and ambipolar diffusion on cloud evolution leading to star formation.
Fumitaka Nakamura, Larson R. B., Zhi-Yun Li   +2 more
core   +1 more source

Class IIa HDACs forced degradation allows resensitization of oxaliplatin‐resistant FBXW7‐mutated colorectal cancer

Molecular Oncology, EarlyView.
HDAC4 is degraded by the E3 ligase FBXW7. In colorectal cancer, FBXW7 mutations prevent HDAC4 degradation, leading to oxaliplatin resistance. Forced degradation of HDAC4 using a PROTAC compound restores drug sensitivity by resetting the super‐enhancer landscape, reprogramming the epigenetic state of FBXW7‐mutated cells to resemble oxaliplatin ...
Vanessa Tolotto, Nicolò Gualandi, Ylenia Cortolezzis, Raffaella Picco, Monica Colitti, Francesca D'Este, Mariachiara Gani, Wayne W. Hancock, Giovanni Terrosu, Cristina Degrassi, Francesca Agostini, Claudio Brancolini, Luigi E. Xodo, Eros Di Giorgio   +13 more
wiley   +1 more source