614 research outputs found
I TRAI-s e gli strumenti di valutazione del rischio estremismo
No full textIl contributo approfondisce la costruzione e l'utilizzo dei TRA-Is - Terrorism Risk Assessment Instruments attraverso un'analisi della valutazione del rischio estremismo in considerazione delle minacce emergenti
La radicalizzazione e gli ecosistemi digitali comunicativi: una prospettiva sociologica
No full textIl capitolo approfondisce la prospettiva sociologica relativa ai processi di radicalizzazione e alle forme di estremismo attuali ed emergenti, con particolare attenzione al ruolo degli ecosistemi comunicativi digitali e alle loro caratteristiche
Conclusioni
No full textIl contributo propone alcune riflessioni conclusive e linee di indirizzo per lo studio e il futuro approfondimento delle dinamiche di radicalizzazione in considerazione delle minacce emergenti e del ruolo delle nuove tecnologie
Chiral transition and deconfinement in N_f = 2 QCD
No full textThe transition is studied by means of a disorder parameter detecting
condensation of magnetic monopoles in the vacuum. The deconfining transition is
found to coincide with the chiral transition and the susceptibility \rho,
related to the disorder parameter, is consistent with a first order phase
transition
Progress in understanding colour confinement
No full textNew results from lattice are presented,which demonstrate that monopoles condense in the vacuum of confined phase of QCD, which is thus a dual superconductor. Monopoles defined by different abelian projections appear to be physically equivalent
The Other Side of Resilience to Terrorism A Portrait of a Resilient-Healthy City
No full textThis timely treatise introduces an innovative prevention/preparedness model for cities to address and counter terrorist threats and events. It offers theoretical background, mixed-method research, and tools for creating a resilience-based response to terrorism, as opposed to the security-based frameworks commonly in use worldwide. The extended example of Milan as a “resilient-healthy” city pinpoints sociological, political, and economic factors that contribute to terror risk, and outlines how law enforcement and emergency management professionals can adopt more proactive measures. From these observations and findings, the author also makes recommendations for the professional training and city planning sectors to address preparedness issues, and for community inclusion programs to deter criminal activities in at-risk youth.
Features of the coverage:
- Summary of sociological theories of terrorism
- The Resilience D model for assessing and managing urban terrorist activity
- Findings on resilience and vulnerabilities of terror groups
- Photo-illustrated analysis of neighborhoods in Milan, describing areas of risk and resilience
- Virtual ethnography with perspectives from native residents, recent immigrants, and security experts
- Proposals for coordinated communications between resource agencie
Towards glueball masses of large-N SU(N) pure-gauge theories without topological freezing
No full textA disorder parameter for dual superconductivity in gauge theories.
No full textDual superconductivity in the confining phase of gauge theories is discussed in terms of a disorder parameter which vanishes in normal phase and is different from zero in the superconducting phase
Beyond the Visible and Below the Peel: How UV-B Radiation Influences the Phenolic Profile in the Pulp of Peach Fruit. A Biochemical and Molecular Study
No full textIn the last decades, UV-B radiation has attracted attention due to its potential to increase nutraceutical values of fruit and vegetables, especially by inducing the accumulation of phenolics in a structure-dependent way. However, most current studies have investigated the UV-B-driven changes only in the peel or focusing on individual phenolic classes. Adopting an “-omics” approach, this work aimed to deepen the knowledge about the effects of UV-B radiation on the phenolic profile in the pulp of peach fruit. Based on these considerations, melting flesh yellow peaches (Prunus persica L., cv. Fairtime) were subjected to either a 10- or 60-min UV-B treatment (1.39 and 8.33 kJ m–2, respectively), and sampled at different time points from the exposure. A UHPLC-ESI/QTOF-MS analysis coupled with a phenolics-specific database for the annotation of compounds and a multivariate discriminant analysis revealed a marked effect of UV-B radiation on the phenolic profiles of peach pulp. Particularly, a general, transient increase was observed after 24 h from the irradiation, especially for flavanols, flavonols, and flavones. Such behavior diverges from what was observed in the peel, where an overall increase of phenolics was observed after 36 h from the irradiation. Concerning the flavonols in the pulp, UV-B exposure stimulated a specific accumulation of isorhamnetin and kaempferol derivatives, with variations imposed by the different sugar moiety bound. Anthocyanins, which were the second most abundant flavonoid group after flavonols, displayed a general decrease after 36 h that was not attributable to specific molecules. The UV-B treatments also increased the glycoside/aglycone ratio of flavonols and anthocyanins after 24 h, by increasing the glycoside concentration of both, flavonols and anthocyanins, and decreasing the aglycone concentration of anthocyanins. In support of the biochemical results, targeted gene expression analysis by RT-qPCR revealed an UV-B-induced activation of many genes involved in the flavonoid pathway, e.g., CHS, F3H, F3′H, DFR, as well as some MYB transcription factors and few genes involved in the UV-B perception. Generally, all the flavonoid-related and MYB genes showed a transient UV-B dose-dependent activation after 6 h from the irradiation, similarly to what was observed in the peel
Monopole condensation and color confinement
No full textNew evidence is discussed of monopole condensation in the vacuum of SU(2) and SU(3) gauge theories. Monopoles defined by different abelian projections do condense in the transition to the confined phase and show the same behavior. For SU(2) critical indices are determined by finite size scaling analysis and the results agree with the 3d Ising Model, as expected
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