Minor Keywords of Political Theory: Migration as a Critical Standpoint. A collaborative project of collective writing

Coordinated and Edited by: N De Genova, M Tazzioli Co-Authored by: Claudia Aradau, Brenna Bhandar, Manuela Bojadzijev, Josue David Cisneros, N De Genova, Julia Eckert, Elena Fontanari, Tanya Golash-Boza, Jef Huysmans, Shahram Khosravi, Clara Lecadet, Patrisia Macías-Rojas, Federica Mazzara, Anne McNevin, Peter Nyers, Stephan Scheel, Nandita Sharma, Maurice Stierl, Vicki Squire, M Tazzioli, Huub van Baar and William Walter

Harmful Elements in Estuarine and Coastal Systems

Estuaries and coastal zones are dynamic transitional systems which provide many economic and ecological benefits to humans, but also are an ideal habitat for other organisms as well. These areas are becoming contaminated by various anthropogenic activities due to a quick economic growth and urbanization. This chapter explores the sources, chemical speciation, sediment accumulation and removal mechanisms of the harmful elements in estuarine and coastal seawaters. It also describes the effects of toxic elements on aquatic flora and fauna. Finally, the toxic element pollution of the Venice Lagoon, a transitional water body located in the northeastern part of Italy, is discussed as a case study, by presenting the procedures adopted to measure the extent of the pollution, the impacts on organisms and the restoration activities

Position Sensitive Single Wire Proportional Counter with Electrodes for Increasing Electric Field Strength

A position sensitive single wire proportional counter (PS-SWPC) with supplemental electrodes is studied for developing a focal plane detector of a magnetic spectrograph. These electrodes increase the electric field at the position away from the anode wire in the counter in order to accelerate the drift velocity of electrons generated by the incident radiation. Characteristics of electron drift and detection efficiency for filling gas mixtures (Ar-CH4 and Ne-CH4) are investigated. As a result, we obtained sufficient time characteristics for PS-SWPC