Naively, one would expect longer papers to have larger impact (i.e., to be cited more). I tested this expectation by selecting all (∼ 30, 000) refereed papers from A&A, AJ, ApJ and MNRAS published between 2000 and 2004. These particular years were chosen so papers analyzed would not be too “fresh”, but at the same time length of each article could be obtained via ADS. I find that indeed longer ...

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In Analytic SSA, an approximate upper bound to the logdet term in Eq. 4 is computed (Hara et al., 2012). Without re-deriving this bound entirely, we present its final steps, which we use to obtain the bounds for KSSA and NLSSA.

During the 1990s, bioethicists raised questions about certain clinical trials conducted in developing countries. These inquiries led to revisions in the Declaration of Helsinki and recommendations from the US National Bioethics Advisory Commission. This article raises doubts about the original questions and subsequent recommendations. It is possible that impractical solutions have been proposed...

A contradictory result recently reported for canonical quantization in the temporal ' gauge, and claimed to render the validity of the quantization procedure itself doubtful, is shown to be incorrect and the result of the application of a nonexistent hermiticity property with respect to the unphysical degrees of freedom of the gauge field.

In this article, we prove that the commensurability class of a closed, orientable, hyperbolic 3–manifold is determined by the surface subgroups of its fundamental group. Moreover, we prove that there can be only finitely many closed, orientable, hyperbolic 3–manifolds that have the same set of surfaces.