Multiple gauge theories predict the presence of cosmic strings with different mass densities G?/c2. We derive an equation governing perturbations a rotating black hole pierced by straight, infinitely long string along its axis rotation and calculate quasinormal-mode frequencies such hole. then carry out parameter estimation on first detected gravitational-wave event, GW150914, hypothesizing tha...

BACKGROUND Subdural migration of epidural catheters is well known and documented. Subdural placement of intrathecal catheters has not been recognized. Two cases of sudural placement of intrathecal catheters are presented. OBJECTIVE The possibility of subdural migration of epidural catheters and its manifestations has been well documented. The following 2 cases demonstrate that intrathecal cat...

With the notions of partial morphism and relation to be understood with respect to a class M of monomorphisms in a nitely complete category C, we give suucient conditions for the graph functor P ar(C) ! Rel(C) to admit a right adjoint. Only under an additional condition is this right adjoint given by the naturally constructed \pierced power objects".

BACKGROUND The shells of molluscs survive well in many sedimentary contexts and yield information about the diet of prehistoric humans. They also yield evidence of symbolic behaviours through their use as beads for body adornments. Researchers often analyse the location of perforations in shells to make judgements about their use as symbolic objects (e.g., beads), the assumption being that hole...

RATIONALE Storage trials were conducted for 2 to 3 months using a hydrocarbon and carbon dioxide gas mixture with known carbon isotopic composition to simulate typical hold times for gas samples prior to isotopic analysis. A range of containers (both pierced and unpierced) was periodically sampled to test for δ(13)C isotopic fractionation. METHODS Seventeen containers were tested for free-gas...

A case is reported of an uneventful continuous extradural block in spite of unrecognized dural perforation. Although the perforation was recognized later during the block, the dura was probably pierced during the insertion of the catheter and only later the terminal hole came to lie in the subarachnoid space. Consequently both extradural and subarachnoid spread of the injected local anaesthetic...

Abstract The new serious consideration to masonry and non-metallic structures evidenced their direct prospective be, even in the present days, advanced architectural engineering solutions. In paper, a form finding for cement based tessellated pierced vault is studied. multi-body rope approach (MRA) was used define compression-only optimal shapes. Successively, thrust network analysis (TNA) impl...