Cloaked dagger: tRNA slicing by an unlikely culprit

An unlikely culprit in prion diseases

Soluble prion protein makes mice unsteady. Li nd qu is t/A A A S version: the infectious, detergent-resistant, plaque-forming fibrillar PrP Sc seen in diseased brains of scrapie-infected sheep and mad cows. Instead, Jiyan Ma, Robert Wollmann (University of Chicago, Chicago, IL), and Susan Lindquist (MIT, Cambridge, MA) point the finger at cytosolic PrP. Minor misfolding events probably lead to ...

Listeria Meningitis: An Unlikely Pathogen in an Unlikely Host

Although a broad range of organisms must be considered in the diagnosis of infectious meningitis, viral and bacterial causes are most commonly observed. Streptococcus pneumoniae, Haemophilus influenzae, and Neisseria meningitidis are some of the more commonly isolated pathogens in bacterial meningitis. This illness typically presents with a well-documented set of signs and symptoms. The followi...

Electromagnetic Scattering by Approximately Cloaked Dielectric Cylinder

In cloaking, a body is hidden from detection by surrounding it by a coating consisting of an unusual anisotropic nonhomogeneous material. The permittivity and permeability of such a cloak are determined by the coordinate transformation of compressing a hidden 2D or cylindrical body into a line. Some components of the electrical parameters of the cloaking material (ε, μ) are required to have inf...

Galileo's Dagger.

Galileo found that fine lines on a balance scale dazzled his eyes and were unreadable. So he used a grid of fine wires instead and ran his dagger across it, counting the number of auditory clicks. This is the first known experiment on sensory substitution.

Aging: Cancer – an unlikely couple