Lorentz-Abraham-Dirac and Landau-Lifshitz equations of motion and the solution to a relativistic electron in a counterpropagating laser beam

Beginning with a critical examination of the Lorentz-Abraham (LA) classical equation of motion for an extended charge and the closely related Lorentz-Abraham-Dirac (LAD) equation of motion for a mass-renormalized point-charge, the Landau-Lifshitz (LL) approximate solution to the LAD equation of motion is determined for an electron subject to a coun

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Injection and sexual risk among people who use or inject drugs in Kampala, Uganda: An exploratory qualitative study.

BackgroundCountries in Sub-Saharan Africa (SSA) have seen rapid increases in injection drug use since 2008.In Uganda, the Global Sate of Harm report and studies conducted by Makerere University Crane Surveys have estimated HIV prevalence among people who inject drugs (PWID) at approximately 17%.The objective of the research was to document injectio

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