Intersecting Diasporas

Diasporas and Technology Transfer

Nearly two decades ago, an important concern of development thinking and international public policy centered on the movement of individuals with high human capital from low income countries to higher income countries — a phenomenon know as ‘reverse technology transfer’ or the ‘brain drain’. Subsequently the issue dropped out of sight, edged out by the immediacy of the problems confronting deve...

Digital Diasporas Atlas Exploration and Cartography of Diasporas in Digital Networks

We will present the digital methodological chain and the tools we developed for building the Digital Diasporas Atlas which aims at mapping and analyzing the occupation of the web by diasporas. Such a chain is composed of four intertwined steps: 1) equipped web exploration and corpus building; 2) data enrichment (location, languages, textmining); 3) network visualization-manipulation and graph i...

e-Diasporas Atlas Exploration and Cartography of Diasporas in Digital Networks

Historically, the emergence of e-diasporas occurred in tandem with the diffusion of the Internet and the development of multiple online public services. At the end of the 1990s, a number of institutions joined forces with the new “e”-technologies (eadministration, e-democracy, e-education, e-healthcare, e-culture, e-tourism), which gave rise to the first presence on the Web of associations run ...

Trading Diasporas' Role in Trade and Diplomacy

Intersecting Designs

We prove the intersection conjecture for designs: For any complete graph Kr there is a finite set of positive integers M(r) such that for every n > n0(r), if Kn has a Kr-decomposition (namely a 2-(n, r, 1) design exists) then there are two Kr-decompositions of Kn having exactly q copies of Kr in common for every q belonging to the set {0, 1, . . . , ( n 2 ) / ( r 2 ) }\{ ( n 2 ) / ( r 2 ) −m | ...