Chemical and isotopic compositions of Archean magmatic and metasedimentary rocks and minerals from the Podolia domain, Ukrainian Shield

Zircons from the oldest magmatic and metasedimentary rocks in the Podolia domain of the Ukrainian shield were studied and dated by the U-Pb method on a NORDSIM secondary-ion mass spectrometer. Age of zircon cores in enderbite gneisses sampled in the Kazachii Yar and Odessa quarries on the opposite banks of the Yuzhnyi Bug River reaches 3790 Ma. Cores of terrigenous zircons in quartzites from the Odessa quarry as well as in garnet gneisses from the Zaval'e graphite quarry have age within 3650-3750 Ma. Zircon rims record two metamorphic events around 2750-2850 Ma and 1900-2000 Ma. Extremely low U content in zircons of the second age group indicates conditions of the granulite facies metamorphism in Paleoproterozoic within the Podolia domain. Measured data on orthorocks (enderbite-gneiss) and metasedimentary rocks unambiguously suggest existence of the ancient Paleoarchean crust in the Podolia (Dniester-Bug) domain of the Ukrainian shield. They contribute in our knowledge of scales of formation and geochemical features of the primordial crust.

Pieter Bruegel the Elder’s Netherlandish Proverbs and Sixteenth Century Dutch Semiotics

"In 1559, Pieter Bruegel the Elder‘s depiction of {7f2015}Netherlandish Proverbs‖ illustrated his profound understanding of the Dutch love for proverbs, their contemporary values, and appreciation for moral lessons in art forms. Depicting gestures and poses that represented proverbial phrases enabled Bruegel‘s leap from didactic labels employed by other artists to his inscription-free success of {7f2015}Netherlandish Proverbs.‖ My examination reveals that Bruegel‘s employment of gestural imagery, indicating rhetorical phrases or proverbs, was reinforced by a history of scholarly curatorship for written proverb collections, humanist interest in proverbs, and use of Dutch vernacular to bolster protonational pride"

On Ukrainian Gas Transit and South Stream. There may be more than meets the eye. CEPS Commentaries, 21 March 2014

The EU relies to a considerable degree on imports to meet its demand for natural gas. Whereas Norwegian export pipelines are directly connected to the EU gas system, a major share of Russian gas flows through the Ukrainian territory before reaching consumers located other consumers located down in the supply chain (e.g. Slovakia, Hungary or Italy). But is the Ukrainian gas transit route still a risk? Will the construction of the South Stream pipeline further reduce the importance of Ukraine as a transit country? Or is there more at stake here than meets the eye?

What do the Maidan protests tell us about Ukraine? Diagnosis and prospects for Ukrainian politics. OSW Commentary No. 125, 22.01.2014

The outbreak of the protests in the Maidan in Kyiv, and also periodically in other Ukrainian cities, has come as a surprise to both the government and the opposition. These rallies have now been ongoing for several weeks and their most striking feature is their focus on citizenship and their apolitical nature and, by extension, a clear attempt to dissociate the protests from Ukraine’s political opposition. Neither Batkivshchyna, UDAR nor Svoboda have managed to take over full control of the demonstrations. On the one hand, this has been linked to the fact that the protesters have little confidence in opposition politicians and, on the other hand, to disputes over a joint strategy and to rivalry between the three parties. As a result, the citizen-led movement has managed to retain its independence from any political actors. As a consequence of the radicalisation and escalation of the protests following 19 January, the political opposition has lost a significant proportion of the control it had been in possession of until then. Maidan should also be seen as the first clear manifestation of a new generation of Ukrainians – raised in an independent Ukraine, well-educated and familiar with new social media, but nonetheless seeking to ground themselves in national tradition. After the initial shock and a series of failed attempts to quell the protests, the government has seemingly opted to wait out the unrest. At the same time, however, it has been creating administrative obstacles for both the political and the civil opposition, restricting their access to the media and severely limiting the legal possibility to organise demonstrations.