GUNS AND KNIVES

Weiss Knives

The sharpening of microtome knives.

The regular production of a satisfactory edge on a microtome knife for the cutting of sections as thin as 2 u, which are free from scores and other blemishes, is a serious technical problem in histological laboratories. Eyen when a good edge is produced on a knife, its life is generally limited because contact with any hard material in the specimen may damage the delicate edge, causing it to sc...

Guns, Privacy, and Crime

We investigate the impact of an information shock – the public exposure of the names and addresses of holders of handgun carry permits – on criminals’ propensity to commit crimes. In December 2008, a Memphis, TN newspaper published a searchable online database of names, zip codes, and ages of Tennessee handgun carry permit holders. Once news of the database publication spread, an intense and ac...

Blueprints , Swiss Army knives , and other metaphors

combat battle. Moreover, it is often delayed in its onset. These observations have led McGaugh and other neuroscientists to speculate that perhaps a post-trauma drug could be given to trauma victims that would block the action of stress hormones, which might attenuate (or even prevent) the development of PTSD. Early work reveals the promise in this original idea. As a result, ethical issues hav...

A Comparison of Knives for Bread Slicing

Vertical partitioning is a crucial step in physical database design in row-oriented databases. A number of vertical partitioning algorithms have been proposed over the last three decades for a variety of niche scenarios. In principle, the underlying problem remains the same: decompose a table into one or more vertical partitions. However, it is not clear how good different vertical partitioning...