Martin Nowak is Head of the Program in Theoretical Biology at the Institute for Advanced Study in Princeton. He will move to Harvard University later this year. Nowak’s work initiated the field of virus dynamics — the mathematical description of how viruses spread within infected individuals. This led to a quantitative understanding of HIV infection (see ‘Virus dynamics’, by Martin Nowak and Ro...

From: Serial Murder and the Psychology of Violent Crimes.explained by labels such as serial murder, serial rape, or serial arson. Anatomy of a Mass Murder: Psychological Profile of Martin Bryant and the. INTRODUCTION The misdeeds of serial killers have long fascinated the. -psychology.comsupport-filesfemale-psychopathic-killers.pdf.The online version of The Psychology of Serial Killer Investiga...

Background: Sand production is an important factor affecting reservoir exploitation. Excessive sand production affects the oil well life, causes the damage to the oil recovery device and brings serious hidden danger in the process of safety production. Objective: This paper presents a sand content computation model for the crude oil, which uses the power of sand production and Parseval theorem,...

Saltation is an important geological process and the primary source of atmospheric mineral dust aerosols. Unfortunately, no studies to date have been able to precisely reproduce the saltation process because of the simplified theoretical models used. For example, sand particles in most of the existing wind sand movement models are considered to be spherical, the effects of the sand shape on the...

Two years before WADS began, my father Martin Demaine and my six-year-old self designed and made puzzles as the Erik and Dad Puzzle Company, which distributed to toy stores across Canada. So began our journey into the interactions between algorithms and the arts. More and more, we find that our mathematical research and artistic projects converge, with the artistic side inspiring the mathematic...

In general, not much is known about the arithmetic of K3 surfaces. Once the geometric Picard number, which is the rank of the Neron-Séveri group over an algebraic closure of the base field, is high enough, more structure is known and more can be said. However, until recently not a single K3 surface was known to have geometric Picard number one. We give explicit examples of such surfaces over th...

where v ranges over all places of Q and Qv is the completion of Q at v, denote its TateShafarevich group. As usual, L(E/Q, s) is the complex L-function of E over Q. Since E is now known to be modular, Kolyvagin’s work [11] shows that X(E/Q) is finite if L(E/Q, s) has a zero at s = 1 of order ≤ 1, and that gE/Q is equal to the order of the zero of L(E/Q, s) at s = 1. His proof relies heavily on ...