An Ecological Look at GMOs

An Inside Look at Botnets

The continued growth and diversification of the Internet has been accompanied by an increasing prevalence of attacks and intrusions [40]. It can be argued, however, that a significant change in motivation for malicious activity has taken place over the past several years: from vandalism and recognition in the hacker community, to attacks and intrusions for financial gain. This shift has been ma...

An Open-Eyed Look at Sleep

average person who reaches the age 0 as spent around 20 years of his life sleeping. statement is only a somewhat dramatic way o ^minding us that we spend about 8 hours in eve y ~4 in the comfortable state of suspended animati VVe call sleep. Indeed, if we could eliminate the r'eed for sleep, we would all add many years o Active life. Unfortunately, as any parent wi s,eepless infant will testify...

An historical look at embryo transfer.

An Empirical Look at Software Patents

U.S. legal changes have made it easier to obtain patents on inventions that use software. Software patents have grown rapidly and now comprise 15 percent of all patents. They are acquired primarily by large manufacturing firms in industries known for strategic patenting; only 5 percent belong to software publishers. The very large increase in software patent propensity over time is not adequate...

An Extrinsic Look at the Riemannian Hessian

Let f be a real-valued function on a Riemannian submanifold of a Euclidean space, and let f̄ be a local extension of f . We show that the Riemannian Hessian of f can be conveniently obtained from the Euclidean gradient and Hessian of f̄ by means of two manifoldspecific objects: the orthogonal projector onto the tangent space and the Weingarten map. Expressions for the Weingarten map are provided ...