A PARADIGM FOR VIRUS-HOST COEVOLUTION: SEQUENTIAL COUNTER-ADAPTATIONS BETWEEN ENDOGENOUS AND EXOGENOUS RETROVIRUSES.

A paradigm for virus-host coevolution: sequential counter-adaptations between endogenous and exogenous retroviruses.

Endogenous retroviruses (ERVs) are remnants of ancient retroviral infections of the host germline transmitted vertically from generation to generation.It is hypothesized that some ERVs are used by the host as restriction factors to block the infection of pathogenic retroviruses.Indeed, some ERVs efficiently interfere with the replication sai of rel

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#picturesofchange: Physical self-representations in social media as a sign of change in sports- and movement culture

The mediatization of communicative action is a process that centrally moderates social change.Changes in communication (e.g., through new kinds of media) thus have momentous consequences for social forms and processes.As essential cultural signs, social bodies, their medial representation, and areas of society in which bodies play a role are interr

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Machine learning in petrophysics: Advantages and limitations

Machine learning provides a powerful alternative data-driven approach to accomplish many petrophysical tasks from subsurface data.It can assimilate information from large and rich data bases and infer relations, rules, and knowledge hidden in the data.When the physics behind data becomes extremely complex, inexplicit, or even unclear/unknown, machi

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An Efficient Motion Control System for Underwater Gliders

This paper describes an underwater glider motion control system intended to enhance locomotive efficiency by reducing the energy expended by vehicle guidance and control.In previous work, the authors obtained an approximate analytical expression for steady turning THE DEMI ROSE GOLD motion as a regular perturbation from wings level flight.Using thi

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