Results 61 to 70 of about 45,387 (211)
A Note on Celestial Mechanics in Kerr Spacetime
, 2014 The Hamilton-Jacobi equation for test particles in the Kerr geometry is separable. Using action-angle variables, we establish several relations between various physical quantities that characterize bound timelike geodesic orbits around a spinning black ...
Tiec, Alexandre Le
core +2 more sources
Journal of Gastroenterology and Hepatology, EarlyView.ABSTRACT Hepatocellular carcinoma (HCC) is the most common type of primary liver cancer, accounting for up to 80% of all cases. Most patients present at an advanced stage and are unsuitable for curative treatments. In the past 5 years, immunotherapy combination has superseded tyrosine kinase inhibitors (TKI) as the standard first‐line therapy for ...
Landon L. Chan +2 more
wiley +1 more source
Simulation of the Motion of Stars Escaping from the Galactic Center
Open Astronomy, 2015 Motions of stars escaping from the Galactic center are simulated. It is shown that the Galactic bar reduces the initial velocity needed to escape from the Galaxy.
Shirokova K. S.
doaj +1 more source
An Invitation to Singular Symplectic Geometry [PDF]
, 2017 In this paper we analyze in detail a collection of motivating examples to consider $b^m$-symplectic forms and folded-type symplectic structures. In particular, we provide models in Celestial Mechanics for every $b^m$-symplectic structure.
Braddell, Roisin +4 more
core +3 more sources
Journal for the Scientific Study of Religion, EarlyView.ABSTRACT Building on scholarship that conceptualizes race and religion as co‐constitutive forces within a “race‐religion constellation,” this article explores how this entanglement—profoundly infused and structured by secularity—is lived and negotiated in everyday life.
Deniz Aktaş
wiley +1 more source
The Analogia Entis for Reformed Theology: Retrieving Calvin's Implicit Metaphysics
Modern Theology, EarlyView.Abstract The famous controversy between Emil Brunner and Karl Barth which led to Barth's ‘No!’ was driven by disagreements over how to read John Calvin: Barth and Brunner never agreed on whether Calvin had a doctrine of the analogy of being. This article rekindles the debate.
Silvianne Aspray
wiley +1 more source
Collisional Velocities and Rates in Resonant Planetesimal Belts
, 2007 We consider a belt of small bodies around a star, captured in one of the external or 1:1 mean-motion resonances with a massive perturber. The objects in the belt collide with each other.
A. Campo Bagatin +39 more
core +2 more sources
Nations and Nationalism, EarlyView.ABSTRACT The Russian Military Historical Society (RMHS) was founded in 2012 on President Vladimir Putin's orders. Since Russia's invasion of Ukraine in February 2022, the society's members have not only published propaganda to support the ‘special military operation’ but have discussed the need for a proper ‘state ideology’.
Kati Parppei
wiley +1 more source
Non-Integrability of a weakly integrable Hamiltonian system
, 2003 The geometric approach to mechanics based on the Jacobi metric allows to easily construct natural mechanical systems which are integrable (actually separable) at a fixed value of the energy.
Pucacco, Giuseppe, Rosquist, Kjell
core +1 more source
Global surfaces of section for Reeb flows in dimension three and beyond
, 2020 We survey some recent developments in the quest for global surfaces of section for Reeb flows in dimension three using methods from Symplectic Topology.
Hryniewicz, Umberto L. +1 more
core +1 more source