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Numerical Solution of the Spinless Salpeter Equation by a Semianalytical Matrix Method (a Mathematica 4.0 routine) [PDF]
, 2000 In quantum theory, the so-called "spinless Salpeter equation," the relativistic generalization of the nonrelativistic Schroedinger equation, is used to describe both bound states of scalar particles and the spin-averaged spectra of bound states of ...
Lucha, Wolfgang, Schoberl, F. F.
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Politics &Policy, Volume 54, Issue 2, April 2026.ABSTRACT This study employs advocacy coalition framework (ACF) theory to analyze debates over U.S. space policies designed to avoid dangerous collisions between objects in Earth orbit. For decades, the Department of Defense prioritized national security in its development of space traffic coordination (STC) systems like the Space Surveillance Network ...
Jeffrey S. Lantis
wiley +1 more source
Instantaneous Bethe-Salpeter Look at the Lightest Pseudoscalar Mesons
, 2018 Within our description of Goldstone-type pseudoscalar mesons as almost massless bound states of quark and antiquark by a three-dimensional bound-state equation of Bethe-Salpeter origin, taking into account the pointwise behaviour of the full light-quark ...
Lucha, Wolfgang, Schoberl, Franz F.
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Exact Solutions of Bethe-Salpeter Equations with Instantaneous Interactions [PDF]
, 2013 The Bethe-Salpeter approach allows for quantum-field-theoretic descriptions of relativistic bound states; its inherent complexity, however, usually prevents to find its exact solutions.
Lucha, Wolfgang, Schoberl, Franz F.
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When survival becomes politics: Necessity activism and identity work under precarity
Political Psychology, Volume 47, Issue 2, April 2026.Abstract Collective action is essential for tackling social, institutional, and environmental challenges, often fueled by shared identities, common norms, and a belief in the possibility of change. However, the impact of participating in collective action on individual identities, and how this knowledge can shape future efforts to maintain engagement ...
Lucia Garcia‐Lorenzo +2 more
wiley +1 more source
19S: la lucha por una reconstrucción justa, digna y segura
Runa, 2020 En este artículo se presenta la etnografía del proceso político ocurrido en el marco de la emergencia humanitaria y la movilización social, mediado por el sismo ocurrido el 19 de septiembre de 2017 en México.
Víctor Hugo Villanueva Gutiérrez
doaj +1 more source
Energy bounds for the spinless Salpeter equation: harmonic oscillator [PDF]
, 2000 We study the eigenvalues E_{n\ell} of the Salpeter Hamiltonian H = \beta\sqrt(m^2 + p^2) + vr^2, v>0, \beta > 0, in three dimensions. By using geometrical arguments we show that, for suitable values of P, here provided, the simple semi-classical formula ...
Franz F Schöberl +8 more
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The Journal of Latin American and Caribbean Anthropology, Volume 31, Issue 1, March 2026.ABSTRACT Pastoralism worldwide faces a complex landscape of increased pressures and exclusion. Beyond ecological and economic challenges, pastoralists suffer eroding cultural identity, limited generational renewal, and political marginalization. Yet pastoral livelihoods are increasingly recognized as stewards of sustainable futures and amongst the best
Greta Semplici, Pablo Manzano
wiley +1 more source
Valoración mediante resonancia magnética del hidrops endolinfático en la enfermedad de Ménière
Revista Argentina de RadiologíaEl laberinto membranoso es una estructura ubicada dentro de la cápsula ótica, que está formado por un conjunto de vesículas y conductos que contienen endolinfa y que conforman un sistema cerrado de circulación de líquido, separado de la perilinfa que lo ...
Romina Goñi +4 more
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