Invadopodia, actin-based protrusions of invasive carcinoma cells that focally activate extracellular matrix-degrading proteases, are essential for the migration and intravasation of tumor cells during dissemination from the primary tumor. We have previously shown that cortactin phosphorylation at tyrosine residues, in particular tyrosine 421, promotes actin polymerization at newly-forming invad...

María Mercedes Di Virgilio y Mariano Perelman (coordinadores). Buenos Aires: Biblos, 2019, 421 pp. ISBN: 978-987-691-587-8

[This corrects the article on p. 421 in vol. 10, PMID: 27616987.].

[This corrects the article on p. 421 in vol. 7, PMID: 26604822.].

We present long-term observations of several VHE (E > 100 GeV) blazars with VERITAS, together with contemporaneous Swift and RXTE Xray data. The observed targets include Mrk 421, Mrk 501, 1ES 2344+514. Strong flux and spectral variability is seen in Mrk 421 on nightly time-scales between January and June 2008, revealing a highly correlated X-ray to GeV/TeV connection. Modest Xray variability is...

The detection of gamma rays of energy greater than 300 GeV from the BL Lacertae object Mrk 501 demonstrates that extragalactic TeV emission is not unique to Mrk 421. During 66 hr of observations between 1995 March and July we measured an average flux of 8.1H 1.4 3 10 cm s above 300 GeV, a flux that is only 20% of the average Mrk 421 flux. The new gamma-ray source has not been reported by the Co...

It is well known that the flat radio spectrum a common property in spectral energy distribution of blazars. Although one-zone leptonic models are generally successful explaining multi-wave band emission, they problematic reproducing spectrum. In study Mrk 421, suggest order to avoid overproducing flux, minimum electron Lorentz factor should be larger than few hundred at least, even considering ...

Guido Bürk, Dieter Kunert, Jochen Meister, Maya von Stauffenberg (Hrsg.) Pädiatrische Psychosomatik. Ein Praxishandbuch. Stuttgart: Kohlhammer Verlag, 2022, 421 Seiten, 59,00 Euro, ISBN 9783170365551