Results 61 to 70 of about 1,314,344 (348)

Analytical evaluation of atomic form factors: application to Rayleigh scattering

, 2014
Atomic form factors are widely used for the characterization of targets and specimens, from crystallography to biology. By using recent mathematical results, here we derive an analytical expression for the atomic form factor within the independent ...
Abramowitz M., Bransden B. H., Cowan R. D., F. Fratini, Fratini F., Giacovazzo C., J. P. Santos, K. Jänkälä, L. Safari, P. Amaro, Williams D. B., Wilson A. J. C.   +11 more
core   +1 more source

From ballistic transport to tunneling in electromigrated ferromagnetic breakjunctions [PDF]

, 2005
We fabricate ferromagnetic nanowires with constrictions whose cross section can be reduced gradually from 100 nm to the atomic scale and eventually to the tunneling regime by means of electromigration.
Bolotin, Kirill I., Kuemmeth, F., Pasupathy, Abhay N., Ralph, D. C.   +3 more
core   +2 more sources

AAA+ protein unfoldases—the Moirai of the proteome

FEBS Letters, EarlyView.
AAA+ unfoldases are essential molecular motors that power protein degradation and disaggregation. This review integrates recent cryo‐electron microscopy (cryo‐EM) structures and single‐molecule biophysical data to reconcile competing models of substrate translocation.
Stavros Azinas, Marta Carroni
wiley   +1 more source

Dilepton photoproduction on a deuteron target

Physics Letters B, 2019
We investigate the sensitivity of the cross section for lepton pair production off a deuteron target, γd→l+l−d, to the deuteron charge radius. We show that for small momentum transfers the Bethe-Heitler process dominates, and that it is sensitive to the ...
Carl E. Carlson, Vladyslav Pauk, Marc Vanderhaeghen   +2 more
doaj   +1 more source

Experimental investigation of high-energy photon splitting in atomic fields [PDF]

, 2001
The new data analysis of the experiment, where the photon splitting in the atomic fields has been observed for the first time, is presented. This experiment was performed at the tagged photon beam of the ROKK-1M facility at the VEPP-4M collider.
A. G. Shamov, A. I. Milstein, A. I. Naumenkov, A. L. Maslennikov, A. M. Milov, A.L. Maslennikov, A. I. Milstein, D. N. Shatilov, E. A. Simonov, G. E. Pospelov, G. Ya. Kezerashvili, I. Ya. Protopopov, L. V. Romanov, N. Yu. Muchnoi, P. Papatzacos, R. N. Lee, R. M. Dzhilkibaev, R. N. Lee, S. G. Klimenko, S. V. Peleganchuk, Sh. Zh. Akhmadaliev, Sh. Zh. Akhmadaliev, V. M. Malyshev, V. M. Strakhovenko, V. S. Panin, V. N. Baier, V. V. Anashin, W. K. Roberts, Yu. A. Tikhonov   +28 more
core   +2 more sources

Subtype‐specific enhancer RNAs define transcriptional regulators and prognosis in breast cancers

Molecular Oncology, EarlyView.
This study employed machine learning methodologies to perform the subtype‐specific classification of RNA‐seq data sets, which are mapped on enhancers from TCGA‐derived breast cancer patients. Their integration with gene expression (referred to as ProxCReAM eRNAs) and chromatin accessibility profiles has the potential to identify lineage‐specific and ...
Aamena Y. Patel, Peyman Zarrineh, Nathnael T. Tuffa, Jigar H. Sheth, Sumitra Mohan, Mudassar Iqbal, Sankari Nagarajan   +6 more
wiley   +1 more source

Testing quantum correlations in a confined atomic cloud by scattering fast atoms

, 1998
We suggest measuring one-particle density matrix of a trapped ultracold atomic cloud by scattering fast atoms in a pure momentum state off the cloud. The lowest-order probability of the inelastic process, resulting in a pair of outcoming fast atoms for ...
A. B. Kuklov, A.I. Safonov, A.K. Setty, A.S. Parkins, B. V. Svistunov, C.C. Bradley, C.N. Yang, D.G. Fried, D.O. Edwards, E.A. Burt, E.W. Hagley, H. Steck, J. Stenger, K.B. Davis, L. Deng, M.H. Anderson, M.R. Andrews, P.C. Hohenberg, P.E. Sokol, V.U. Nayak, W. Kohn, Y. Castin, Yu. Kagan, Yu. Kagan   +23 more
core   +1 more source

EDNRB‐dependent endothelin signaling reduces proliferation and promotes proneural‐to‐mesenchymal transition in gliomas

Molecular Oncology, EarlyView.
Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau, Leonor Garcia, Hugo Arnold, Antonija Hanžek, Maialen Arrieta, Laurent R Gauthier, Christine Granotier‐Beckers, François D Boussin, Amaury Herbet, Marie Hautière, Valentin Asei‐Ceschino, Clémentin Jacques, Laura Brard, Thomas Harnois, Valérie Coronas, Bruno Constantin, Aurélien Chatelier, Jean Chemin, Serge Urbach, Martial Seveno, Szimonetta Hideg, Chantal Ripoll, Kasandra Aguilar‐Cázarez, Min Zheng, Guo‐Hao Huang, Sheng‐Qing Lv, Lei Zhang, Philippe Rondard, Laurent Prezeau, Jean‐Philippe Pin, Hugues Duffau, Luc Bauchet, Valérie Rigau, Franck Denat, Charles Truillet, Didier Boquet, Jean‐Philippe Hugnot   +36 more
wiley   +1 more source

Integral measurement of the 12C(n, p)12B reaction up to 10 GeV [PDF]

, 2016
The integral measurement of the 12C(n, p)12B reaction was performed at the neutron time-offlight facility n TOF at CERN. The total number of 12B nuclei produced per neutron pulse of the n TOF beam was determined using the activation technique in ...
Altstadt, Sebastian G., Bosnar, D., Colonna, Nicola, Cortés Giraldo, Miguel Antonio, Mengoni, A., Praena Rodríguez, Javier, Quesada Molina, José Manuel, Ventura, A., Zugec, P.   +8 more
core   +1 more source

CCDC80 suppresses high‐grade serous ovarian cancer migration via negative regulation of B7‐H3

Molecular Oncology, EarlyView.
PAX8 is a lineage‐specific master regulator of transcription in high‐grade serous ovarian cancer (HGSC) progression. We show for the first time that PAX8 facilitates proliferation and metastasis by repressing the cell autonomous tumor suppressor CCDC80 and inducing B7‐H3 expression.
Aya Saleh, Nitzan Medina‐Itzhaki, Milena Chekov, Eden Gal‐Swisa, Roba Gabesh‐Wahabi, Inbar Savyon, Inna Naroditsky, Hilary A. Kenny, Basem Fares, Lina Korsensky, Einav Girsh, Liron Berger, Ruth Perets   +12 more
wiley   +1 more source