We marvel at the social complexity of insects, marked by anatomically and behaviorally distinguishable castes, division of labor and specialization—but how do such systems evolve? Insect societies are composed of individuals, each…
Research finds center-based child care typically benefits children of low socio-economic status (SES) but few studies have examined if it also reduces inequalities in developmental disadvantage.
Está situado en el municipio de Flores, en el departamento de Petén, en el territorio actual de la República de Guatemala, y forma parte del Parque Nacional Tikal, que fue declarado Patrimonio de la Humanidad por la Unesco en 1979. [2…
Steel Structures in General - Free download as PDF File (.pdf), Text File (.txt) or read online for free. This document provides requirements and standards for steel structure work on a construction project.
Honey bee colonies exhibit a wide range of variation in their behaviour, depending on their genetic origin and environmental factors. The Coloss Genotype-Environment Interactions Experiment gave us the opportunity to investigate the…
Methanosphaera stadtmanae has the most restricted energy metabolism of all methanogenic archaea. This human intestinal inhabitant can generate methane only by reduction of methanol with H2 and is dependent on acetate as a carbon source.