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...

In recent years, the notion that computers and robots will attain superhuman levels of intelligence in the next few decades, ushering in a new “posthuman” era in evolutionary history, has gained widespread attention among technology enthusiasts, thanks in part to books such as Ray Kurzweil’s The Singularity Is Near. This paper describes an introductory-level AI course designed to examine this i...

The foundation of Muslim consumer behavior is different from conventional consumers. This paper aims to find out how the consumption factor in an Islamic perspective and its differences a perspective. uses qualitative descriptive approach with literature study for data collection. Conventional consumers emphasize maximum satisfaction efforts fulfill needs desires without restrictions. In contra...

In this paper, we present two experiments with 3-year-olds, exploring their interpretation of sentences about desires. A mature concept of desire entails that desires may conflict with reality and that different people may have conflicting desires. While previous literature is suggestive, it remains unclear whether young children understand that (a) agents can have counterfactual desires about ...