Inferring human colonization history using a copying model.

Genome-wide scans of genetic variation can potentially provide detailed information on how modern humans colonized the world but require new methods of analysis.We introduce a statistical approach that uses Single Nucleotide Polymorphism (SNP) data to identify sharing of chromosomal segments between populations and uses the pattern of sharing to re

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Dyadic social interaction as an alternative reward to copyright

Individuals suffering from substance use disorders often show severely impaired social interaction, preferring drugs of abuse to the contact with others.Their impaired social interaction is doubly harmful for them as (1) therapy itself is based and dependent on social interaction and as (2) social interaction is not available to them as an "al

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