Emetophobia in public or having to witness someone else vomit, as the start of the emetophobia. They may also be afraid of hearing that someone is feeling like vomiting or that someone has vomited, usually in conjunction with the fears of seeing someone vomit or seeing vomit. There is a strong agreement in the scientific community that there is no specific cause of emetophobia. Some emetophobics report a traumatic experience with vomiting, always in childhood. Some suggest that sufferers are victims of childhood abuse – sexual or physical. While this is occasionally true, it seems to be no more prevalent than
Hurwitz zeta function function of the complex argument "s" ("vide supra"), leading in each case to the difficult study of the zeros of Riemann's zeta function. In particular, there will be no zeros with real part greater than or equal to 1. However, if 0<"q"<1 and "q"≠1/2, then there are zeros of Hurwitz's zeta function in the strip 1<Re("s")<1+ε for any positive real number ε. This was proved by Davenport and Heilbronn for rational or transcendental irrational "q", and by Cassels for algebraic irrational "q". The Hurwitz zeta function occurs in a number of striking identities at rational values. In particular, values in