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Full-Text Articles in Life Sciences

Transcriptomics Of Learning, Pablo Iturralde Jul 2018

Transcriptomics Of Learning, Pablo Iturralde

Theses

Learning is a basic and important component of behavior yet we have very little empirical information about the interaction between mechanisms of learning and evolution. In our work, we are testing hypotheses about the neurogenetic mechanisms through which animal learning abilities evolve. We are able to test this directly by using experimentally evolved populations of flies, which differ in learning ability. These populations were previously evolved within the lab by creating worlds with different patterns of change following theoretically predicted effects on which enhanced learning will evolve. How has evolution acted to modulate genes and gene expression in the brain …


The Heart Of The Madder: An Important Prehistoric Pigment And Its Botanical And Cultural Roots, Michelle Laberge May 2018

The Heart Of The Madder: An Important Prehistoric Pigment And Its Botanical And Cultural Roots, Michelle Laberge

Theses and Dissertations

In recent years, an interest in natural botanical dye sources has prompted new research into the cultivation and processing of prehistoric dye plants. Advances in chemical analyses of ancient European textiles have provided more information about dye plants such as woad (Isatis tinctoria) weld (Reseda luteola) and madder (Rubia tinctorum), which were important sources of color in early textile production. Evidence of madder dye has been reported in the archaeological record of the European Bronze and Iron Ages in textiles preserved in the Hallstatt salt mines, Scandinavian bog sites and other elite European burials but the picture of madder usage …