Dark Matter: Some Reflections on the Current Account Debate

Introduction: Some Reflections on the Federalism Debate

Some Reflections on Two Current Trends in Formal Argumentation

This paper discusses two recent developments in the formal study of argumentation-based inference: work on preference-based abstract argumentation and on classical (deductive) argumentation. It is first argued that general models of the use of preferences in argumentation cannot leave the structure of arguments and the nature of attack and defeat unspecified. Then it is claimed that classical a...

Some Practical Applications of Dark Matter Research

Two practical spin-offs from the development of cryogenic dark matter detectors are presented. One in materials research, the other in biology.

Some Comments on an MeV Cold Dark Matter Scenario

We discuss several aspects of astroparticle physics pertaining to a new model with MeV cold dark matter particles, which annihilate to electron-positron pairs in a manner yielding the correct CDM density required today, and explaining the enhanced electron-positron annihilation line from the center of the Galaxy. We note that the mass of the vector meson mediating the annihilations, should exce...

Guns, Crime, and Academics: Some Reflections on the Gun Control Debate

This comment on Thomas Marvell’s “The Impact of Banning Juvenile Gun Possession” analyzes Marvell’s empirical findings and their policy implications for gun control legislation. While Marvell’s article stresses the absence of any finding favorable to juvenile gun bans, this comment points out that the statistical results actually support the stronger finding that some of the juvenile gun bans a...