Humans have the ability to mentally travel forward and back in time. They can retrieve vivid memories of past events (episodic memories) and can imagine the future (planning). Although it has been suggested that this is a uniquely human ability, the evidence for subjective time travel in humans is typically based on verbal report and elaboration. Such evidence cannot be obtained from animals. H...

Humans evolved in populations structured in groups that extended beyond the nuclear family. Individuals interacted with each other within these groups and there was limited migration and sometimes conflicts between these groups. Suppose that during this evolution, individuals transmitted their behaviors or preferences to their (genetic or cultural) offspring, and that material outcomes resultin...

During man’s relatively brief existence on this planet, he has relied on the bounty of its flora and fauna for his existence. He has harvested wildlife for food, clothing, shelter, medicines, beasts of burden, pets, and companionship. Over most of this period, this harvesting and exploitation had little impact on those resources. Human population was very low, and most animal and plant populati...

Technically simple proofs are given of the HVZ theorem on the bottom of the essential spectrum of multiparticle systems and of Combes' result on completeness below the lowest three body threshold. The first proof is a variant of a proof of Enss and a decendent of Zhislin's original proof. Finally, we apply our methods to the bound state spectrum.

Emotional signals allow for the sharing of important information with conspecifics, for example to warn them of danger. Humans use a range of different cues to communicate to others how they feel, including facial, vocal, and gestural signals. Although much is known about facial expressions of emotion, less research has focused on affect in the voice. We compare British listeners to individuals...

I find introspection to be painful. Looking back, I recall doing little of it before age sixteen. Instead, I mainly did the things that I was instructed to do. I studied hard and performed well in courses and examinations, for no deeper reason than that this was what one was supposed to do. As an adult I have introspected when it has seemed constructive to do so, but I still try not to overdo i...

P. 3 Is there a zombie nation in our future? A continual humans vs. zombies battle would make for an entertaining school day, don't you think? AftE '*WI$r' p. 10 It might put you in a Wyrd funk Rice Players' Wyrd Sisters misfires on a number of dramatic levels. But that Hwel guy sure is good. SPORTS P. 14 Jazzing it up Go behind the scenes with former Rice basketballer Morris Almond, as he talk...

Based on the HVZ theorem and dilation analyticity of the pseudorelativistic no-pair Jansen-Hess operator, it is shown that for subcritical potential strength (Z ≤ 90) the singular continuous spectrum is absent. The bound is slightly higher (Z ≤ 102) for the Brown-Ravenhall operator whose eigenvalues λ are, by the virial theorem, confined to λ < 2m if Z ≤ 50.

Recently an aboriginal guide was showing a group of tourists around Alberta's renowned HeadSmashed-In Buffalo-Jump, a UNESCO World Heritage Site staffed by First Nations personnel. The guide graphically described how in ancient times the Jill Sullivan buffalo would be driven over the edge of a fifteen meter precipice, to land in a gory heap at the base of the cliff. A diorama showed men and wom...

Lice are small, wingless, minor ectoparasites of mammals and birds. More than 540&nbsp; blood-sucking lice (Phthiraptera: Anoplura) have been described with each host having its own type of louse, suggesting the cospeciation of the lice species with their host. Among these, two lice species from two different genera infest humans: Pediculus humanus and Phthirus pubis (pubic &ldquo;crab&rdquo; l...