Gr. ἄφρων [adj.] ‘senseless’: a Reassessment

Memories of ADJ

In this guest column, I wish to present some informal and personal recollections of the exciting early days of ADJ. This time was very important to me personally, and I think was also signiicant for the eld of algebraic speciication. Because these recollections are so personal, they are also necessarily biased, and probably inaccurate in some respects; but perhaps this will just make the result...

A Reassessment

Features of constitutive gr/gr deletion in a Japanese population.

BACKGROUND The relationship between male infertility and gr/gr deletions that remove multiple genes of the Y chromosome varies among countries and populations. The aim of this study was to investigate the association between gr/gr deletions and spermatogenic phenotype in fertile and infertile Japanese men. METHODS The subjects were screened by sequence-tagged site (STS) analysis to detect gr/...

School shootings: Making sense of the senseless

Article history: School shootings have alter Received 4 December 2007 Received in revised form 17 December 2008 Accepted 20 January 2009 Available online 24 January 2009

On Gr-functors between Gr-categories

Each Gr-category (or categorical group) is Gr-equivalent to a Grcategory of type (Π, A, ξ), where Π is a group, A is a Π-module and ξ is a 3-cocycle of Π, with coefficients in A. In this paper, first we show that each Gr-functor induces one between Gr-categories of type (Π, C). Then we give results on the existence of Gr-functor and the classification of Gr-functors by cohomology groups H(Π, C)...