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Recent research on migrant settlement shows that women play an important role in consolidating migrant households and facilitating permanent settlement in migrant sites. Other studies demonstrate that government policies and legislation also determine the contours of migrant communities. A case study of a Maya migrant community in Cancun, Mexico, shows that state policies and the economic systems associated with an international tourist industry restrict the actual process of settlement to men and women who enter into a marriage contract, replicate the model of the 'nuclear family,' and demonstrate good citizenship. This case suggests that the global economy and state policies play a key role in reifying gender relations in migrant communities. [Reprinted by permission of Sage Publications Inc., copyright 2008.]

Recent research on migrant settlement shows that women play an important role in consolidating migrant households and facilitating permanent settlement in migrant sites. Other studies demonstrate that government policies and legislation also determine the contours of migrant communities. A case study of a Maya migrant community in Cancún, Mexico, shows that state policies and the economic systems associated with an international tourist industry restrict the actual process of settlement to men and women who enter into a marriage contract, replicate the model of the "nuclear family," and demonstrate good citizenship. This case suggests that the global economy and state policies play a key role in reifying gender relations in migrant communities.

I. Tanarro et al. -- 16 pags., 18 figs., app. ; We present a proof of concept on the coupling of radio astronomical receivers and spectrometers with chemical reactors and the performances of the resulting setup for spectroscopy and chemical simulations in laboratory astrophysics. Several experiments including cold plasma generation and UV photochemistry were performed in a 40 cm long gas cell placed in the beam path of the Aries 40 m radio telescope receivers operating in the 41–49 GHz frequency range interfaced with fast Fourier transform spectrometers providing 2 GHz bandwidth and 38 kHz resolution. The impedance matching of the cell windows has been studied using di erent materials. The choice of the material and its thickness was critical to obtain a sensitivity identical to that of standard radio astronomical observations. Spectroscopic signals arising from very low partial pressures of CH3OH, CH3CH2OH, HCOOH, OCS, CS, SO2 (<103 mbar) were detected in a few seconds. Fast data acquisition was achieved allowing for kinetic measurements in fragmentation experiments using electron impact or UV irradiation. Time evolution of chemical reactions involving OCS, O2 and CS2 was also observed demonstrating that reactive species, such as CS, can be maintained with high abundance in the gas phase during these experiments ; The research leading to these results has received funding from the European Research Council under the European Union's Seventh Framework Programme (FP/2007-2013)/ERC-SyG-2013 Grant Agreement No. 610256 NANOCOSMOS and from spanish MINECO CSD2009-00038 (ASTROMOL) under the Consolider-Ingenio Program. We also thank spanish MINECO for funding under grants AYA2012-32032, AYA2016-75066-C2-1-P, FIS2013-48087-C2-1-P, FIS2016-77726-C3-1-P, FIS2016-77578-R, MAT2014- 54231-C4-1-P. ; Peer reviewed