In contrast to our closest cousin, the chimpanzee, humans appear at first to lack cues of impending ovulation that would mark the fertile period in which a female can become pregnant. Consequently, that ovulation is ‘‘concealed’’ in women has long been the consensus among scientists studying human mating. A recent series of studies shows, however, that there are discernible cues of fertility in...

Malicious Web sites are a cornerstone of Internet criminal activities. The dangers of these sites have created a demand for safeguards that protect end-users from visiting them. This article explores how to detect malicious Web sites from the lexical and host-based features of their URLs. We show that this problem lends itself naturally to modern algorithms for online learning. Online algorithm...

People, across a wide range of personal and professional domains, need to detect change accurately. Previous research has documented systematic shortcomings in doing so, in particular, a pattern of overand underreaction to indications of change, resulting from a tendency to overweight signals of change at the expense of the environment that produces the signals. This investigation considers whe...

Interviewees sometimes deliberately omit reporting some information. Such omission lies differ from other because all the information interviewees present may be entirely truthful. Truth tellers and lie carried out a mission. reported entire mission truthfully. Lie were also truthful but left one element of In truth tellers' statements, only parts that asked to recall analysed. Interviews via C...