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This paper introduces JitterBugs, a class of inline interception mechanisms that covertly transmit data by perturbing the timing of input events likely to affect externally observable network traffic. JitterBugs positioned at input devices deep within the trusted environment (e.g., hidden in cables or connectors) can leak sensitive data without compromising(More)
We have investigated the expression of TLR2 and Dectin-1 in retinal microglia and their involvement in Candida albicans phagocytosis using a cytometric approach. The expression of both receptors has been demonstrated in CD11b(+) retinal cells. Phagocytosis of pHrodo-labelled C. albicans yeasts by microglial CD11b(+) cells of C57BL/6 mice was inhibited both(More)
A recent national survey suggests that the HIPAA privacy rule has not only failed to preserve patient privacy adequately, but also has had a negative impact on clinical research. Our work suggests that researchers revisit the possibilities of homomorphic encryption and apply the techniques to secure aggregation of medical telemetry. A primary goal is to(More)
Retinal abnormality and visual disturbances occur in thiamine-responsive megaloblastic anaemia (TRMA), an autosomal recessive disorder caused by mutations in the human thiamine transporter-1 (hTHTR-1). Human retinal pigment epithelial cells play a pivotal role in supplying thiamine to the highly metabolically active retina but nothing is known about the(More)
This document describes the details and results of a spectrum occupancy measurement campaign which took place in Bogota (Colombia) from March to December 2012. The study includes the analysis of occupation of all frequency bands ranging from 54 MHz to 6 GHz. Measurements are sorted according to different bands and services so as to provide a clear vision(More)
The synthesis of 9,9'-[1,2-ethanediylbis(oxymethylene)]bis-2-amino-1,9-dihydro-6H-purin-6-one, a minor impurity of acyclovir, is described. Starting with commercial N-(9-acetyl-6-oxo-1H-purin-2-yl)acetamide, the process uses an acid catalysed phase transfer catalysis (PTC) process to produce the selective alkylation at the 9 position of the guanine ring.
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