Rat Anti Drosophila DN-cadherin Heterohybridoma [EO-FY /9]

This article deals with the relations between Jews and Non-Jews, especially Greeks, in late and post-Ottoman Rhodes. In the first part, I show that an understanding of the dimension of cosmopolitan Ottoman port cities is necessary for inquiring into the societal dynamics of the post-imperial local context. Secondly, I describe the obstacles for a pluralistic and inter-confessional historiography based on the current trends pursued by Greek and Jewish authors. The economic aspect of the coexistence between Greeks and Jews being a recurrent, yet very generalized and superficial motive in those works, I inquire into relations of individuals in the capital and labour market of Rhodes. In this empirical section, I draw from archival sources to show that inter-communality was far from being an exceptional, a-normal occurrence in different professions, from moneylending to prostitution. Instead, it represented a persistent factor of cooperation, interdependence and occasional conflict. By downplaying any rigid narrative of confessional segregation and coherence, I argue that groupist' reading of the history of Rhodes in the twentieth century should be challenged by further efforts towards a polyphonic and inclusive narrative more focused on the social actors.

The organization of neuronal processes into a series of layers is a hallmark of many brain regions. Homophilic cell adhesion molecules of the cadherin family have been implicated in layer choice. How they contribute to the targeting of neurons to distinct layers remains unclear. Here we systematically explore the role of a classical cadherin, Drosophila N-cadherin (CadN), in the targeting of five classes of related neurons to a series of consecutive layers in the fly visual system. We show that CadN is required in lamina neurons at discrete developmental steps but not used in a layer-specific fashion. Local CadN expression patterns correlate with specific growth cone movements, and CadN expression on one growth cone in a specific layer is essential for the targeting of processes of another neuron to this layer. We propose that dynamic regulation of CadN enables this widely expressed protein to mediate specific local interactions during neural circuit assembly.