Self-organization in dissipative structures: a thermodynamic theory for the emergence of prebiotic cells and their epigenetic evolution.

This paper presents a discussion on self-organization processes in dissipative structures, in order to highlight the general conditions for raising complexity and generate order. In particular, some concepts were introduced from non-equilibrium thermodynamics and from the Molecular Anamorphic Evolution Theory, especially concerning processes of matter randomization. Once a theoretical thermodynamics-based framework for understanding self-organizing systems had been presented, a spontaneous transition from macrostates richer in microstates to macrostates poorer in microstates was explained, as an attempt to point out the probable existing conditions at the formation of prebiotic structures. Closed systems, constrained by a lipid bilayer and with an internal water environment, were presented as cases of self-organization towards living systems. It was then highlighted that the origin of life depends on epigenetic and autopoietic processes, since metabolism plays a more relevant role than replication in making novelties emerge.

The greenhouse gas balance of the Province of Siena.

There is a profound debate over how to assign greenhouse gas (GHG) responsibilities; therefore, we have decided to follow IPCC guidelines, as they offer the only standardized method. We have identified each type of greenhouse emission and its level of absorption. We have studied the province and its districts and municipalities. We have determined that the energy sector is that with the highest level of emissions, even if the per capita emissions of the Province of Siena are very low. This is caused by a very low level of industrialization and the presence of a local geothermal production of energy. In order to highlight this aspect, we have considered scenarios both with and without geothermal production. Our research was then focused on single districts (groups of homogenous municipalities) and municipalities, where we found great differences among the greenhouse emissions of the areas. We have constructed a map of the greenhouse emissions of the whole province. It has been interesting to note that there are 14 municipalities with net negative emissions, seven with low positive emissions, 12 with medium positive emissions and three with elevated positive emissions. These latter correspond to the main city and to two of the most industrialized municipalities.

Emergy accounting of the Province of Siena: towards a thermodynamic geography for regional studies.

This research is part of the SPIn-Eco project for the Province of Siena, Italy, and applies an environmental accounting method to a region with reference to its population, human activities, natural cycles, infrastructures and other settings. This study asserts that the consumption of resources due to the human economy is a source of great concern because of the load it places on the biosphere. Environmental resources locally used, whether directly or indirectly, from both renewable energy fluxes and storage of materials and energies, are investigated. In this paper emergy analysis is presented and applied to the Province of Siena and to each of its municipalities, in order to evaluate the main flows of energy and materials that supply the territorial system, including human subsystems, with reference to their actual environmental cost. Therefore, the behaviour of the whole system and the interactions between natural and human agents were studied; in other words, the attitudes of the territorial systems toward resource use as revealed by their patterns of emergy consumption were observed. Once expressed in units of the same form of energy through the emergy evaluation, categories of resource consumption and systems of varying scales and organization are compared. Furthermore, indexes of environmental performance based on emergy are calculated. Flows of energy and materials are assessed, and their intensities, which vary throughout the area of the Province, are then visualized on maps.