A bizarre case report of self-harm by ingested lock trapped in oropharynx

The present case report deals with a highly and yet unreported case of self-harm in which a medium sized lock was ingested with convulsive movements of the face and neck which ultimately got trapped in oropharyngeal region. The lock managed to ‘sink’ and settled down in that region so that the patient did not feel any gross pain once it was swallowed. There was history of mental illness reported by the attendants of the patient that remained unverified since no treatment card or the name of drug(s) was shown to the treating team of doctors. Therefore, it remained speculative whether the attempt to swallow lock was as a result of psychiatric illness or was supplemented by other social factor notable the influence of “Tantrik”. Tantriks are special breed of spiritual healers who resorted to unscientific method of healing. At times they use unethical practices. There are reports in which tantrik have provoked their unsuspecting victims to highly complex maneuvers leading to self-harm. The present case, it is believed falls in this category

Crash helmet – the harbinger of death: a case report

In one of the rarest form of freak accident, a young woman surrendered to her death in a manner that belie the reality only to be played back in a slow motion sequence. History is replete of instances in which death struck individuals in otherwise innocent forms. In this case – elaborated below – a helmet tucked under the crook of an elbow became the undoing causing the woman to topple backward in a slow-motion, the head striking the hard surface of the road and precipitating her death later in a hospital

Causality in Non-Commutative Quantum Field Theories

We study causality in non-commutative quantum field theory with a space-space non-commutativity. We employ the S-operator approach of Bogoliubov-Shirkov(BS). We generalize the BS criterion of causality to the noncommutative theory. The criterion to test causality leads to a nonzero difference between T*-product and T-product as a condition of causality violation for a spacelike separation. We discuss two examples; one in a scalar theory and one in the Yukawa theory. In particular, in the context of a non-commutative Yukawa theory, with the interaction Lagrangian $\bar{\psi}(x)\star\psi(x)\star\phi(x)$, is observed to be causality violating even in case of space-space noncommutativity for which \theta^{0i}=0. \Comment: 18 pages, LaTeX; A few changes in sections 3.2,3.3 and

Possible Detection of Causality Violation in a Non-local Scalar Model

We consider the possibility that there may be causality violation detectable at higher energies. We take a scalar nonlocal theory containing a mass scale $\Lambda$ as a model example and make a preliminary study of how the causality violation can be observed. We show how to formulate an observable whose detection would signal causality violation. We study the range of energies (relative to $\Lambda$) and couplings to which the observable can be used.Comment: Latex, 30 page