A less-virulent poliovirus generated by altering codon usage suggests a new strategy for vaccine development. Figure 1: Development of an attenuated vaccine by two classical methods and the ...

More information: Luca Malagnini et al, Seismic attenuation and stress on the San Andreas Fault at Parkfield: are we critical yet?, Frontiers in Earth Science (2024). DOI: 10.3389/feart.

These are discussed separately below. Attenuation from a point source (left) where the intensity decreases according to the square of the distance from the source (note increasing cone area), and from ...

In this study, the effect of shoulder pads on impact force attenuation was quantified. Design Four different commercially available shoulder pads were tested for material properties. Hard and soft ...