Neurotropic alphaviruses can propagate without capsid

Neurotropic alphaviruses can propagate without capsid

Alphaviruses are a group of enveloped viruses transmitted by mosquitoes. Many alphaviruses are neurotropic, being able to produce encephalitis in humans and animals. Among alphaviruses, both Semliki Forest (SFV) and Sindbis virus (SIN) have been extensively studied as models of viral pathogenicity. In mice, SFV and SIN can infect neurons in the central nervous system and virulent strains induce...

How fast can cracks propagate?

We have performed atomic simulations of crack propagation along a weak interface joining two harmonic crystals. The simulations show that a mode II shear dominated crack can accelerate to the Rayleigh wave speed and then nucleate an intersonic daughter that travels at the longitudinal wave speed. This contradicts the general belief that a crack can travel no faster than the Rayleigh speed.

Fast Multiplication Without Carry-Propagate Addition

Can Neural Activity Propagate by Endogenous Electrical Field?

It is widely accepted that synaptic transmissions and gap junctions are the major governing mechanisms for signal traveling in the neural system. Yet, a group of neural waves, either physiological or pathological, share the same speed of ∼0.1 m/s without synaptic transmission or gap junctions, and this speed is not consistent with axonal conduction or ionic diffusion. The only explanation left ...

PICC Counting: Who Needs Joins When You Can Propagate Efficiently?

Counting is a common task in many data mining applications, including market basket data analysis, scientific inquiry, and other high dimensional data management applications. Given a single table, obtaining the instance counts of the entries in the table is relatively cheap. In situations where the attributes of interest are distributed across different tables, however, the problem of computin...