The problem of demonstrating entanglement is central to quantum information processing applications. Resorting to standard entanglement witnesses requires one to perfectly trust the implementation of the measurements to be performed on the entangled state, which may be an unjustified assumption. Inspired by the recent work of F. Buscemi [Phys. Rev. Lett. 108, 200401 (2012)], we introduce the co...

Dimension witnesses allow one to test the dimension of an unknown physical system in a device-independent manner, that is, without placing assumptions about the functioning of the devices used in the experiment. Here we present simple and general dimension witnesses for quantum systems of arbitrary Hilbert space dimension. Our approach is deeply connected to the problem of quantum state discrim...

In England and Wales, in accordance with the adversarial principle of orality, witnesses in criminal proceedings are generally required to give evidence ‘live’ in open court. It is, nevertheless, now widely accepted that this obligation can place onerous demands on witnesses and militates against receipt of the best evidence potentially available in some cases. For victims of rape, the process ...

A study and cataloguing of Fernán Ruiz de Sevilla’s L a coronación Nuestra Señora (ID 0116, 15th century). Its two witnesses (ms PN6 incunabulum Cancionero Ramón Llavia , 86*RL) offer abundant divergences. This helps to shed light on the process transmission this poem suggests hypotheses regarding affiliation its sources.

Lee Elder Jehovah’s Witnesses read with interest the case study by Sniecinski et al. (1) concerning advances in treating patients who refuse certain products made from blood. Some Jehovah’s Witnesses fit this profile. Accordingly, we are grateful to medical science for advances facilitating safe perioperative care for patients with this preference. Sniecinski et al. (1) report the cases of two ...

Jehovah's Witnesses' (JWs) refusal of blood transfusions has recently gained support in the medical community because of the growing popularity of "no-blood" treatment. Many physicians, particularly so-called "sympathetic doctors", are establishing a close relationship with this religious organization. On the other hand, it is little known that this blood doctrine is being strongly criticized b...

Nuclear copies of mitochondrial DNA (mtDNA) have contaminated PCR-based mitochondrial studies of over 64 different animal species. Since the last review of these nuclear mitochondrial pseudogenes (Numts) in animals, Numts have been found in 53 of the species studied. The recent evidence suggests that Numts are not equally abundant in all species, for example they are more common in plants than ...