Results 51 to 60 of about 191,305 (291)

Spin density wave dislocation in chromium probed by coherent x-ray diffraction [PDF]

, 2009
We report on the study of a magnetic dislocation in pure chromium. Coherent x-ray diffraction profiles obtained on the incommensurate Spin Density Wave (SDW) reflection are consistent with the presence of a dislocation of the magnetic order, embedded at ...
A.G. Khachaturyan, A.W. Overhauser, B. Hennion, C. Giles, C.H. Chen, C.Y. Young, D. Bolloc’h Le, D. Bolloc’h Le, D. Feinberg, D. Feinberg, D. Gibbs, D. Le Bolloc’h, D. Mannix, E. Fawcett, F. Livet, F. Livet, F. Livet, I.K. Robinson, I.K. Robinson, J. Friedel, J.L. Fry, J.P. Hill, J.P. Pouget, J.P. Pouget, K. Chesnel, L. Paolasini, L.P. Gor’kov, M. Blume, M. Kleiber, N.P. Ong, N.P. Ong, P.A. Lee, P.C. Camargo de, P.J. Metaxas, R. Pynn, R.S. Fishman, R.S. Fishman, S. B. Wilkins, S. Ravy, S. Ravy, S. Ravy, S.K. Burke, V. L.R. Jacques, W.B. Cowan, X.W. Jiang, Y. Tsunoda   +45 more
core   +4 more sources

Evolution of geometrically necessary dislocation density from computational dislocation dynamics

IOP Conference Series: Materials Science and Engineering, 2009
This paper presents a method for calculating GND densities in dislocation dynamics simulations. Evolution of suitably defined averages of GND density as well as maps showing the spatial nonuniform distribution of GNDs are analyzed under uniaxial loading.
P J Guruprasad, A A Benzerga
openaire   +1 more source

Aggressive prostate cancer is associated with pericyte dysfunction

Molecular Oncology, EarlyView.
Tumor‐produced TGF‐β drives pericyte dysfunction in prostate cancer. This dysfunction is characterized by downregulation of some canonical pericyte markers (i.e., DES, CSPG4, and ACTA2) while maintaining the expression of others (i.e., PDGFRB, NOTCH3, and RGS5).
Anabel Martinez‐Romero, Ane Martinez‐Larrinaga, Joaquim Grego‐Bessa, Saioa Garcia‐Longarte, Hielke van Splunder, Ianire Astobiza, Amaia Ercilla, Laura Bozal‐Basterra, Isabel Mendizabal, Pilar Villacampa, Arkaitz Carracedo, Mariona Graupera   +11 more
wiley   +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

Influence of dislocation density on internal quantum efficiency of GaN-based semiconductors

AIP Advances, 2017
By considering the effects of stress fields coming from lattice distortion as well as charge fields coming from line charges at edge dislocation cores on radiative recombination of exciton, a model of carriers’ radiative and non-radiative recombination ...
Jiadong Yu, Zhibiao Hao, Linsen Li, Lai Wang, Yi Luo, Jian Wang, Changzheng Sun, Yanjun Han, Bing Xiong, Hongtao Li   +9 more
doaj   +1 more source

Novel methods for dislocation density estimation in highly compacted tangles

Journal of Materials Research and Technology, 2020
Dislocation lines are usually observed in thin foil images obtained by transmission electron microscopy (TEM). Based on conventional methods involving stereological relationship and line counting, dislocation densities have been calculated in distinct ...
Sergio Neves Monteiro, Luiz Paulo Brandão, Talita Gama de Sousa, Fabio da Costa Garcia Filho   +3 more
doaj   +1 more source

Microstructure versus Size: Mechanical Properties of Electroplated Single Crystalline Cu Nanopillars [PDF]

, 2010
We report results of uniaxial compression experiments on single-crystalline Cu nanopillars with nonzero initial dislocation densities produced without focused ion beam (FIB).
Burek, Michael J., Greer, Julia R., Jennings, Andrew T.   +2 more
core   +1 more source

Transcriptional network analysis of PTEN‐protein‐deficient prostate tumors reveals robust stromal reprogramming and signs of senescent paracrine communication

Molecular Oncology, EarlyView.
Combining PTEN protein assessment and transcriptomic profiling of prostate tumors, we uncovered a network enriched in senescence and extracellular matrix (ECM) programs associated with PTEN loss and conserved in a mouse model. We show that PTEN‐deficient cells trigger paracrine remodeling of the surrounding stroma and this information could help ...
Ivana Rondon‐Lorefice, Jose I. Lopez, Aitziber Ugalde‐Olano, Maite Zufiaurre, Ianire Astobiza, Natalia Martin‐Martin, Laura Bozal‐Basterra, Saioa Garcia‐Longarte, Amaia Zabala‐Letona, Sofia Rey, Aida Santos‐Martin, Miguel Unda, Ana Loizaga‐Iriarte, Mariona Graupera, Paolo Nuciforo, Arkaitz Carracedo, Isabel Mendizabal   +16 more
wiley   +1 more source

Quantifying internal strains, stresses, and dislocation density in additively manufactured AlSi10Mg during loading-unloading-reloading deformation

Materials & Design, 2021
The plastic deformation of the AlSi10Mg alloy manufactured via laser powder bed fusion (LPBF) is incompatible at the microscale, which causes residual strains/stresses and dislocation pile-ups at the Al/Si interfaces and grain boundaries. Hence, it is of
X.X. Zhang, H. Andrä, S. Harjo, W. Gong, T. Kawasaki, A. Lutz, M. Lahres   +6 more
doaj   +1 more source

LINC01116, a hypoxia‐lncRNA marker of pathological lymphangiogenesis and poor prognosis in lung adenocarcinoma

Molecular Oncology, EarlyView.
The LINC01116 long noncoding RNA is induced by hypoxia and associated with poor prognosis and high recurrence rates in two cohorts of lung adenocarcinoma patients. Here, we demonstrate that besides its expression in cancer cells, LINC01116 is markedly expressed in lymphatic endothelial cells of the tumor stroma in which it participates in hypoxia ...
Marine Gautier‐Isola, Rafael Lopes Goncalves, Marin Truchi, Caroline Lacoux, Célia Scribe, Hugo Cadis, Laetitia Guardini, Sophie Bekisz, Marius Ilié, Paul Hofman, Georges Vassaux, Bernard Mari, Roger Rezzonico   +12 more
wiley   +1 more source