Buscar
Mostrando ítems 1-10 de 152
Saddle points and rare collisions under scaling approach in a Fermi accelerator with two nonlinear terms
(2013-04-01)
Rare collisions of a classical particle bouncing between two walls are studied. The dynamics is described by a two-dimensional, nonlinear and area-preserving mapping in the variables velocity and time at the instant that ...
Saddle points and rare collisions under scaling approach in a Fermi accelerator with two nonlinear terms
(2013-04-01)
Rare collisions of a classical particle bouncing between two walls are studied. The dynamics is described by a two-dimensional, nonlinear and area-preserving mapping in the variables velocity and time at the instant that ...
Total ionization cross sections in particle and antiparticle collisions with rare gases
(ELSEVIER SCIENCE BV, 2017-10)
In this contribution we analyze the total ionization cross sectionsby impact of electrons, positrons, protons and antiprotons in Ne,Ar, Kr and Xe. We compare theoretical results using the continuumdistorted wave eikonal ...
Synchronous collision malignant melanoma and adenocarcinoma of the rectum
(SPRINGER, 2010)
Collision tumors consist of two independent but coexisting tumors. This uncommon situation might be easily mistaken for a composite tumor where one histogenetic event originates from two apparently distinct neoplasms. ...
Collision tumour of large-cell neuroendocrine carcinoma and adenocarcinoma in the stomach: A case report.
(Cancer Intelligence, 2016-01)
Concurrence of adenocarcinoma and large-cell neuroendocrine carcinoma of the stomach is a rare condition. Here, we report a case of gastric collision tumour with large-cell neuroendocrine carcinoma and adenocarcinoma. A ...