Eph:ephrin signaling plays an important role in embryonic development as well as tissue homeostasis in the adult. At the cellular level, this transduction pathway is best known for its role in the control of cell adhesion and repulsion, cell migration and morphogenesis. Yet, a number of publications have also implicated Eph:ephrin signaling in the control of adult and embryonic neurogenesis. As...

In birds each hemisphere receives visual input from the contralateral eye. Since birds have no corpus callosum, avian brains are often seen as 'natural split brains'. How do birds cope with situations, when both hemispheres are brought into conflict? If under such conditions one hemisphere completely determines the response, this is called meta-control. This phenomenon has recently been demonst...

Situations in which conflicting constraints clash can potentially provide linguists with insights into the architecture of grammar. This paper deals with such a case. When predicative modifiers of morphologically rich languages head relative clauses, they are involved in two, sometimes conflicting, agreement relationships. Different languages adopt different strategies in order to resolve situa...