Transizione sostenibile: le nuove prospettive del periurbano. Un modello di formazione online per il territorio

Transizione sostenibile: le nuove prospettive del periurbano. Un modello di formazione online per il territorio- Indice #10- Parte 1. Sviluppo sostenibile e Formazione #20- Parte 2. L'esperienza di Transizione Sostenibile #48- Parte 3. La formazione online #80- Parte 4. Considerazioni sul modello sperimentato #9

Da margine a centro. Verso un modello di governance per Corona Verde

Da margine a centro. Verso un modello di governance per Corona Verde- Indice #6- Parte 1. Obiettivi e presupposti teorici #12- Parte 2. Le analisi e il confronto con gli stakeholders #26- Parte 3. Dalle analisi ai modelli di governance #50- Parte 4. Le proposte operative #5

Systems thinking : an approach for understanding 'eco-agri-food systems'

The TEEBAgriFood ‘Scientific and Economic Foundations’ report addresses the core theoretical issues and controversies underpinning the evaluation of the nexus between the agri-food sector, biodiversity and ecosystem services and externalities including human health impacts from agriculture on a global scale. It argues the need for a ‘systems thinking‘ approach, draws out issues related to health, nutrition, equity and livelihoods, presents a Framework for evaluation and describes how it can be applied, and identifies theories and pathways for transformational change

Profound Depletion of HIV-1 Transcription in Patients Initiating Antiretroviral Therapy during Acute Infection

Early intervention resulted in profound depletion of PBMC expressing HIV-1 RNA. This is contrary to chronically infected patients who predominantly showed continuous UsRNA expression on cART. Thus, antiretroviral treatment initiated during the acute phase of infection prevented establishment or expansion of long-lived transcriptionally active viral cellular reservoirs in peripheral blood

The diversity and evolution of pollination systems in large plant clades: Apocynaceae as a case study

Background and Aims Large clades of angiosperms are often characterized by diverse interactions with pollinators, but how these pollination systems are structured phylogenetically and biogeographically is still uncertain for most families. Apocynaceae is a clade of >5300 species with a worldwide distribution. A database representing >10 % of species in the family was used to explore the diversity of pollinators and evolutionary shifts in pollination systems across major clades and regions. Methods The database was compiled from published and unpublished reports. Plants were categorized into broad pollination systems and then subdivided to include bimodal systems. These were mapped against the five major divisions of the family, and against the smaller clades. Finally, pollination systems were mapped onto a phylogenetic reconstruction that included those species for which sequence data are available, and transition rates between pollination systems were calculated. Key Results Most Apocynaceae are insect pollinated with few records of bird pollination. Almost three-quarters of species are pollinated by a single higher taxon (e.g. flies or moths); 7 % have bimodal pollination systems, whilst the remaining approx. 20 % are insect generalists. The less phenotypically specialized flowers of the Rauvolfioids are pollinated by a more restricted set of pollinators than are more complex flowers within the Apocynoids + Periplocoideae + Secamonoideae + Asclepiadoideae (APSA) clade. Certain combinations of bimodal pollination systems are more common than others. Some pollination systems are missing from particular regions, whilst others are over-represented. Conclusions Within Apocynaceae, interactions with pollinators are highly structured both phylogenetically and biogeographically. Variation in transition rates between pollination systems suggest constraints on their evolution, whereas regional differences point to environmental effects such as filtering of certain pollinators from habitats. This is the most extensive analysis of its type so far attempted and gives important insights into the diversity and evolution of pollination systems in large clades

Systems thinking: an approach for understanding ‘eco-agri-food systems’

Chapter 2 makes the case for using systems thinking as a guiding perspective for TEEBAgriFood’s development of a comprehensive Evaluation Framework for the eco-agri-food system. Many dimensions of the eco-agri-food system create complex analytical and policy challenges. Systems thinking allows better understanding and forecasting the outcomes of policy decisions by illuminating how the components of a system are interconnected with one another and how the drivers of change are determined and impacted by feedback loops, delays and non-linear relationships. To establish the building blocks of a theory of change, systems thinking empowers us to move beyond technical analysis and decisiontool toward more integrated approaches that can aid in the forming of a common ground for cultural changes