An American horseback tour operator was allegedly killed by her ex-boyfriend while working on a Caribbean island, according to authorities and reports. Karen Johannsen, 66, was violently struck in the ...

Crystal structures of the Lac repressor, with and without isopropylthiogalactoside (IPTG), and the repressor bound to operator have provided a model for how the binding of the inducer reduces the ...

Social media brand fails happen when companies lose sight of their audience, rush content without proper review or attempt to capitalize on trending topics without understanding the context. The ...

Individual aseismic areas move as rigid plates on the surface of a sphere. Application of the Mercator projection to slip vectors shows that the paving stone theory of world tectonics is correct and ...