Small is big: The microfossil perspective on human-plant interaction

Small is big: the microfossil perspective on human-plant interaction.

T he archaeological record contains only scattered and incomplete clues to the scope and complexity of past human behavior, and archaeologists must develop every possible source of useful information. Although much overused of late, the truism that absence of evidence is not evidence of absence holds particular force in archaeology and nowhere more than in the prehistory of human–plant interact...

How big is small?

Document on Standards for Acquisition, Measurement and reporting of Intravascular Ultrasound Studies clearly defines lesion and reference segment borders. Proximal or distal reference sites are defined as the site with the largest lumen proximal or distal to a stenosis but within the same segment (usually within 10 mm of the stenosis but with no major intervening branches), which may not be the...

The Distributed Cognition Perspective on Human Interaction

W hat comes to mind when a social or cognitive scientist thinks about " human interaction " ? The answer surely depends on the scientist's field of study and most of us learn images of interaction implicitly as part of being socialized into a scientific community. In some corners of artificial intelligence, the prototypical interaction is a sequence of turns in which strings of characters or sy...

Big on Small Things

Big impacts by small RNAs in plant development.

The identification and study of small RNAs, including microRNAs and trans-acting small interfering RNAs, have added a layer of complexity to the many pathways that regulate plant development. These molecules, which function as negative regulators of gene expression, are now known to have greatly expanded roles in a variety of developmental processes affecting all major plant structures, includi...