Phosphoenolpyruvate carboxylase (PEPC) plays a crucial role in the assimilation of CO2 during symbiotic N2 fixation in legume root nodules. In this study, an alfalfa PEPC gene (PEPC-7), whose transcripts are found at elevated levels in nodules relative to either leaves or roots, has been isolated and characterized. The intron/exon structure of this gene is identical to that of most other plant ...

We apply a symmetry-based, statistical method for kine­ matic analysis of mesoscale fault-zone structures to resolve the trans­ port directions for the Rosario fault zone and Lopez StructuralCom­ plex in the San Juan Islands. Both moderately dipping fault zones accommodated large amounts of Late Cretaceous slip ( > 30 km), but the transport direction of nappes overlying these fault zones is con...

in past, the relationship between traditional learning theories and neurophysiological theories wasn’t a close relationship. recently, new findings in neurological sciences showed relatively simple neuron mechanisms for somewhat complicated learning events, for example observational learning, one of which is mirror neurons. these neurons show that how the brain registers the activity observed a...

We challenge Cook et al.'s claim about the vagueness of the notion of action understanding in relation with mirror neurons. We show the multidimensional nature of action understanding and provide a definition of motor-based action understanding, shedding new light on the various components of action understanding and on their relationship. Finally, we propose an alternative perspective on the o...