Las operaciones de mantenimiento de paz de Australia en Timor Oriental y Papúa Nueva Guinea como herramientas de seguridad nacional de 1996 a 2009

La seguridad nacional, en este caso específico la seguridad nacional australiana, no está limitada su espacio físico del territorio sino que se expande a escenarios más amplios cómo sus vecinos inmediatos (Indonesia, Timor Oriental y Papúa Nueva Guinea) e incluso la región en la que se encuentra Australia. En esta perspectiva, las operaciones de mantenimiento de paz son herramientas de la política de seguridad australiana que se han establecido debido a la necesidad de responder a los nuevos desafíos en seguridad. En este trabajo se analizarán las Operaciones de Mantenimiento de Paz en Timor Oriental (1999) y Papúa Nueva Guinea (1997) como parte de la política de seguridad nacional de Australia.

Geochemical changes recorded in Lynch's Crater, Northeastern Australia, over the past 50 ka

There are many geochemical reconstructions of environmental change in the mid and high latitudes but relatively few in the tropical latitudes, despite their considerable potential for reconstructing environmental processes that cannot be identified using more traditional proxies. Here we present one reconstruction of environmental change for the tropics. This reconstruction covers the past 50 ka using a suite of geochemical data from the high-resolution sequence of Lynch's Crater in northeast Queensland, Australia, a region highly sensitive to El Niño-Southern Oscillation (ENSO) activity. The 23 major oxides and trace elements measured could be summarised by extracting three axes using principal components analysis (accounting for 72% of the variability). The data indicate that the greatest variability in the geochemical data accounted for erosional activity within the catchment that was associated with past changes in the frequency of ENSO activity (though this was less sensitive during wetter periods, probably as a result of buffering by high vegetation cover). The remaining variability was largely explained by elements that form complexes with organic compounds (e.g., humic acids) and those that are important nutrients for specific vegetation types (and therefore a measure of vegetation distribution). For more detailed reconstructions, further work is required to disentangle the complex controls of elements within sedimentary sequences.

Renewable energy education : Report from a field trip to Melbourne, Australia, and short visits to India and New Zealand During Nov/Dec 1992

During November and December 1992 I visited several groups involved with renewable energy, most of them dealing with education. These groups and their work are described briefly in this report. The groups in Melbourne, Australia have come a long way with education in this field and we have a lot to learn from them. Government funding is needed for large scale work, but useful work can still be done at the community level with much smaller budgets.