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...

Rhetoric about spirituality and the human search for spiritual answers has been part of history for many years, and spiritual care has been part of nursing history since ancient times (Narayanasamy 1999c). Humans have a profound need to understand their spirits (Freeman 1998), which is the core of human existence and the most elusive and mysterious constituent of our human nature (Macquarrie 19...

In this paper it is studied that there are statistically relevant differences in the brain activity intensity between subjects with an alleged higher development of Spatial Intelligence and those subjects without this alleged higher development. We will analyze their performance on a Spatial Intelligence task of identification, attention and recognition of virtual tridimensional geometric patte...

Humans have a strong sense of who should be punished, when, and how. Many features of these intuitions are consistent with a simple adaptive model: Punishment evolved as a mechanism to teach social partners how to behave in future interactions. Yet, it is clear that punishment as practiced in modern contexts transcends any biologically evolved mechanism; it also depends on cultural institutions...