Results 21 to 30 of about 716,366 (200)
Discrete Spectra of Semirelativistic Hamiltonians [PDF]
, 2002 We review various attempts to localize the discrete spectra of semirelativistic Hamiltonians of the form H = \beta \sqrt{m^2 + p^2} + V(r) (w.l.o.g. in three spatial dimensions) as entering, for instance, in the spinless Salpeter equation.
Abramowitz M. +9 more
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Oncología, 2022 Introducción: El leiomiosarcoma de ovario, es una neoplasia extremadamente rara, forma parte del subgrupo de tumores de músculo liso que constituye menos del 1% en cuanto a tumores de ovario; dentro del mismo se encuentran clasificados el carcinosarcoma,
Blas Luciano Méndez Orellana +2 more
doaj +1 more source
Quality of Variational Trial States
, 1999 Besides perturbation theory (which clearly requires the knowledge of the exact unperturbed solution), variational techniques represent the main tool for any investigation of the eigenvalue problem of some semibounded operator H in quantum theory.
Franz F. Schöberl +15 more
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Respuesta al Tratamiento Neoadyuvante en pacientes con Cáncer de Mama en SOLCA-Guayaquil.
Oncología, 2017 Introducción: La quimioterapia neoadyuvante es ampliamente aceptada como tratamiento de elección en cáncer de mama localmente avanzado. El objetivo de la presente comunicación corta es conocer la tasa de respuesta completa patológica (pRC) luego de ...
Katherine García Matamoros +5 more
doaj +1 more source
Oncología, 2022 Introducción: El cáncer en el año 2020 provoco 1,4 millones de muertes, el 47% en personas menores de 65 años de edad, la neutropenia febril en el paciente oncológico aumenta los casos de infecciones graves, incrementando la morbimortalidad cuando no se
Carlos Soliz Poveda +4 more
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Doubly heavy spin--1/2 baryon spectrum in QCD [PDF]
, 2012 We calculate the mass and residue of the heavy spin--1/2 baryons containing two heavy b or c quarks in the framework of QCD sum rules. We use the most general form of the interpolating current in its symmetric and anti-symmetric forms with respect to the
Albuquerque +27 more
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Various illustrative brief glances at the flavour-cryptoexotic tetraquark states [PDF]
EPJ Web of ConferencesConstituting the largest subset of multiquark states so far observed by experiment, tetraquark mesons carrying overall quark flavour quantum numbers identical to those of the (conventional) quark–antiquark mesons necessitate their particularly deliberate
Lucha Wolfgang
doaj +1 more source
The Spinless Relativistic Woods-Saxon Problem [PDF]
, 2014 Motivated by the observation of a recent renewal of rather strong interest in the description of bound states by (semi-) relativistic equations of motion, we revisit, for the example of the Woods-Saxon interactions, the eigenvalue problem posed by the ...
Lucha, Wolfgang, Schoberl, Franz F.
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Un extraño viene a comer a mi mesa: la asistencia financiera y los leveraged buy outs
Thēmis, 2023 El siguiente trabajo desarrolla la asistencia financiera y los leveraged buyouts o compras apalancadas, a la luz del artículo 106 de la Ley General de Sociedades.
Adrian Tuesta Pasamar
doaj +1 more source
, 2007 A popular three-dimensional reduction of the Bethe-Salpeter formalism for the description of bound states in quantum field theory is the Salpeter equation, derived by assuming both instantaneous interactions and free propagation of all bound-state ...
A. Weinstein +14 more
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