Over the past two decades, non-governmental organisations (NGOs) have increased in number, size and scope and established themselves in pivotal positions in social, economic and political landscapes across the globe. Their role in the development world specifically has been transformed. Originally situated on the periphery of the development community and often directly opposed to its mainstrea...

Evaluation of ECMWF ERA-40 temperature and wind in the lower tropical stratosphere since 1988 from past long-duration balloon measurements T. Christensen, B. M. Knudsen, J.-P. Pommereau, G. Letrenne, A. Hertzog, F. Vial, J. Ovarlez, and M. Piot Danish Meteorological Institute, Copenhagen, Denmark Service d’Aéronomie, IPSL/CNRS, Verrières-Le-Buisson, France Centre National d’Études Spatiales, To...

Using subfragments of the simian virus 40 (SV40) core origin, we demonstrate that two alternative modules exist for the assembly of T-antigen (T-ag) double hexamers. Pentanucleotides 1 and 3 and the early palindrome (EP) constitute one assembly unit, while pentanucleotides 2 and 4 and the AT-rich region constitute a second, relatively weak, assembly unit. Related studies indicate that on the un...

Suppose intruders are in a dark polygonal room and they can move arbitrarily fast, trying to avoid detection. A boundary 1-searcher can move along the polygon boundary, equipped with a flash light that she can direct in any direction. A polygon is searchable if there is a schedule for the searcher in order to detect the intruders no matter how they move. We identify three simple forbidden patte...