A Closer Look at the Sleep/Wake Habits and Dark Triad Traits

A closer look at CMB constraints on WIMP dark matter

We use Cosmic Microwave Background data from the WMAP, SPT, BICEP, and QUaD experiments to obtain constraints on the dark matter particle mass mχ, and show that the combined data requires mχ > 7.6 GeV at the 95% confidence level for the χχ→ bb̄ channel assuming s−wave annihilation and a thermal cross section 〈σav〉 = 3× 10−26 cm3/s. We examine whether the bound on mχ is sensitive to σ8 measuremen...

Occupational niches and the Dark Triad traits

Dark Triad traits, infidelity and romantic revenge

Dark Triad traits (narcissism, Machiavellianism and psychopathy) are characterized by manipulation, emotional coldness, and a lack of empathy. The current studies investigated the influence of Dark Triad traits on heterosexual women’s infidelity and romantic revenge. For Study 1, women (N = 102) completed the Mach IV, NPI-16, Levenson Self-Report Psychopathy Scale, bespoke Infidelity Experience...

A Closer Look at Preduction

In a recent paper Jun Arima formalises the idea of preduc-tion { a non-monotonic schema providing a common basis for inductive and analogical reasoning. We examine some of the implications of this schema, as well as its connections with prototypes and conceptual spaces. A generalised version of his schema is motivated and developed to address diiculties with asymmetry and disjuncts.

A Closer Look at HMAC

Bellare, Canetti and Krawczyk [BCK96] show that cascading an ε-secure (fixed input length) PRF gives an O(εnq)-secure (variable input length) PRF when making at most q prefix-free queries of length n blocks. We observe that this translates to the same bound for NMAC (which is the cascade without the prefix-free requirement but an additional application of the PRF at the end), and give a matchin...