Very atypical agreement indeed

Low-cost intradermal rabies vaccination is indeed very promising.

TO THE EDITOR—We read with great interest the recent article by Wieten et al in Clinical Infectious Diseases [1] and, being involved in ongoing research strictly related to this topic, we wish to bring our contribution to their reflections. First, we fully agree that a lower-dose, abbreviated intradermal preand postexposure vaccination schedule may constitute a valid, shorter, and cheaper alter...

Very Cold Indeed: The Nanokelvin Physics of Bose-Einstein Condensation

As atoms get colder, they start to behave more like waves and less like particles. Cool a cloud of identical atoms so cold that the wave of each atom starts to overlap with the wave of its neighbor atom, and all of a sudden you wind up with a sort of quantum identity crisis known as Bose-Einstein condensation. How do we get something that cold? And what is the nature of the strange goop that re...

Very Simple and Efficient Byzantine Agreement

We present a very simple, cryptographic, binary Byzantine-agreement protocol that, with n ≥ 3t + 1 ≥ 3 players, at most t of which are malicious, halts in expected 9 rounds. 1998 ACM Subject Classification C2.2 Network Protocols, F.0 General

Difficile indeed.

Sperm Biology: Size Indeed Matters

Although sperm are typically thought to be small, tadpole-like cells produced in vast quantities, sperm size, form and number all vary tremendously across species. Sperm form ranges from amoeboid or discoid to multiflagellate elongated structures [1]. Even within the more familiar uniflagellate spermatozoa, length varies by several orders of magnitude, from the tiny 28μm long porcupine sperm to...