2,664 research outputs found
Communication Complexity Protocol for Q-trits
Consider a function where its entries are distributed among many parties.
Suppose each party is allowed to transmit only a limited amount of information
to a net. One can use a classical protocol to guess the value of the global
function. Is there a quantum protocol improving the results of all classical
protocols? Brukner et. al. showed the deep connection between such problems and
the theory of Bell's inequalities. Here we generalize the theory to trits.
There the best classical protocol fails whereas the quantum protocol yields the
correct answer.Comment: 8 page
OFFICE AUTOMATION: A MANAGEMENT BY CONSTRAINTS APPROACH
Information Systems Working Papers Serie
A comment on BCC crystalization in higher dimensions
The result that near the melting point three-dimensional crystals have an
octahedronic structure is generalized to higher flat non compact dimensions
Molecular Exploration of the First-Century Tomb of the Shroud in Akeldama, Jerusalem
The Tomb of the Shroud is a first-century C. E. tomb discovered in Akeldama, Jerusalem, Israel that had been illegally entered and looted. The investigation of this tomb by an interdisciplinary team of researchers began in 2000. More than twenty stone ossuaries for collecting human bones were found, along with textiles from a burial shroud, hair and skeletal remains. The research presented here focuses on genetic analysis of the bioarchaeological remains from the tomb using mitochondrial DNA to examine familial relationships of the individuals within the tomb and molecular screening for the presence of disease. There are three mitochondrial haplotypes shared between a number of the remains analyzed suggesting a possible family tomb. There were two pathogens genetically detected within the collection of osteological samples, these were Mycobacterium tuberculosis and Mycobacterium leprae. The Tomb of the Shroud is one of very few examples of a preserved shrouded human burial and the only example of a plaster sealed loculus with remains genetically confirmed to have belonged to a shrouded male individual that suffered from tuberculosis and leprosy dating to the first-century C.E. This is the earliest case of leprosy with a confirmed date in which M. leprae DNA was detected
Non-Local Effects of Multi-Trace Deformations in the AdS/CFT Correspondence
The AdS/CFT correspondence relates deformations of the CFT by "multi-trace
operators" to "non-local string theories". The deformed theories seem to have
non-local interactions in the compact directions of space-time; in the gravity
approximation the deformed theories involve modified boundary conditions on the
fields which are explicitly non-local in the compact directions. In this note
we exhibit a particular non-local property of the resulting space-time theory.
We show that in the usual backgrounds appearing in the AdS/CFT correspondence,
the commutator of two bulk scalar fields at points with a large enough distance
between them in the compact directions and a small enough time-like distance
between them in AdS vanishes, but this is not always true in the deformed
theories. We discuss how this is consistent with causality.Comment: 24 pages, 6 figures, 2 appendices. v2: added reference
Monitoring Astronauts’ Status through Non-Invasive Positive Pressure Ventilation
Many hospitalized patients with respiratory failure are treated with non-invasive positive pressure ventilation (NiPPV). In many cases non-invasive ventilation can be used to successfully treat patients and subsequently avoid endotracheal intubation. Recent literature and clinical practice have shown that in patients who are protecting their airway, and in whom the pH is not dangerously low, the use of non-invasive positive pressure ventilation can be effective (1). Additional studies argue that NiPPV in more severely ill patients (pH \u3c 7.2) with chronic obstructive pulmonary disease (COPD) is no worse than endotracheal intubation (2,3) with regard to mortality, lengths of stay and readmission rates. Furthermore, better outcome was confirmed for patients who succeeded NiPPV and avoided endotracheal intubation. Thus, the non-invasive mode of ventilation can assist patients in ventilating equally or more effectively, and in many cases can be used to avoid the more invasive endotracheal intubation. Many studies have evaluated treatment failures of NiPPV. Failure rates range from 30-80% depending on the cause of respiratory failure and underlying medical condition(s) of patient population (4). Other studies have looked at factors which predict NiPPV failure, such as physiologic scoring (age, severity of underlying illness) and presence of acute respiratory distress syndrome (ARDS) or community acquired pneumonia (CAP) (5). Having an objective and real time means of early identification of patients that will fail NiPPV would greatly benefit patients by helping physicians intervene early with endotracheal intubation when indicated
- …