76 research outputs found
Analogue gravity and radial fluid flows: the case of AdS and its deformations
No full textFAPESP - FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULOCAPES - COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL E NÍVEL SUPERIORAn analogue model for the AdS(2) spacetime has been recently introduced by Mosna et al. [Phys. Rev. D 94, 104065 (2016)] by considering sound waves propagating on a fluid with an ill-defined velocity profile at its source/sink. The wave propagation is then uniquely defined only when one imposes an extra boundary condition at the source/sink (which corresponds to the spatial infinity of AdS(2)). Here we show that, once this velocity profile is smoothed out at the source/sink, the need for extra boundary conditions disappears. This, in turn, corresponds to deformations of the AdS(2) spacetime near its spatial infinity. We also examine how this regularization of the velocity profile picks up a specific boundary condition for the idealized system, so that both models agree in the long wavelength limit.971017FAPESP - FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULOCAPES - COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL E NÍVEL SUPERIORFAPESP - FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULOCAPES - COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL E NÍVEL SUPERIOR2013/09357-92016/07057-61490213/201
Environmental benefits of pet food obtained as a result of the valorisation of meat fraction derived from packaged food waste
No full textThe 2030 Agenda of the United Nations includes the objective of setting up sustainable production patterns by pursuing several Sustainable Development Goals. Among them, the “Responsible production and consumption” is a key topic in the food production and is strictly connected with the “Climate action”; the crucial point, however, is how to jointly act on all these aspects and apply them in practice. The waste yearly produced in the food chain represent both an ethical, economic and environmental issue. In particular, as far as the recovery of packaged food waste from retailers is concerned, the valorisation of the wasted meat is an extremely relevant issue. Pet food industries could be interested in valorising this waste fraction to replace meat coming from slaughters in their product recipes. This article evaluates the environmental impact of valorising meat fraction from packaged food waste to produce two different recipes of high quality pet food, called Natura and Pâté. A life cycle assessment of the current scenario (traditional pet food production and landfilling of packaged food waste) and of a new one (pet food production using meat fraction from packaged food waste) is carried out applying the ReCiPe 2016 method of impact assessment. Real data have been taken from retailers and pet food manufacturer. The production of pet food using the meat fraction from packaged food waste generates on average lower environmental impacts if compared to the traditional process, in terms of GWP (-56.40%), water consumption (–22.62%), land use (-87.50%) and fossil resource scarcity (-21.78%). Benefits are interesting even if considering the production of Pâté (-14.66%), for which the traditional production process makes use of some slaughter by-products. The proposed industrial process is demonstrated to be sustainable from an environmental point of view and appears to be in line with Sustainable Development Goals (SDGs) 2, 12 and 13
DEM Simulation of the evolution of unstable rock faces: an alternative approach to modelling and back-analysis
No full textThe evolution of unstable rock slopes is a process characterised by a succession of discrete events, each one giving rise to a new configuration of the rock face. If these events are put in a wider time frame, they can be seen as a local step contributing to the overall process. The advances in recognition systems, such as laser scanning or georadar techniques, allow to build numerical models of higher and higher precision, where the topographic and geostructural configurations may be precisely reconstructed. These improved capabilities open the possibility for defining highly representative numerical models that can be used for back analysis purposes or the design of risk mitigation works. One possible drawback of such approaches is that they superimpose structural and topographic data, whose compatibility is not independent on the mechanical behaviour of the rock mass. In fact, the initial geometry is depending on the (usually complex) rock slope history, which has a two-fold relationship with the whole set structural and mechanical features of the rock mass.
In order to investigate this point, a series of Distinct Element analyses of an unstable rock face located in Bolzano province is performed. The model is characterised by a very simple geometry, and slope evolution is studied by adopting the strength reduction technique. Structural and mechanical information is obtained from an extensive in situ survey. The aim of the simulations is to show how a model based on the available geomechanical information can be used to reproduce the main topographic features of the rock slope, and to perform a back analysis of a selected case history
Mycophenolate mofetil is a valid alternative to cyclosporin in patients treated with allogeneic hemopoietic stem cell transplant
No full textAnalogue gravity and radial fluid flows: The case of AdS and its deformations
No full textAn analogue model for the spacetime has been recently
introduced by Mosna, Pitelli and Richartz [Phys. Rev. D 94, 104065 (2016)] by
considering sound waves propagating on a fluid with an ill-defined velocity
profile at its source/sink. The wave propagation is then uniquely defined only
when one imposes an extra boundary condition at the source/sink (which
corresponds to the spatial infinity of ). Here we show that, once
this velocity profile is smoothed out at the source/sink, the need for extra
boundary conditions disappears. This, in turn, corresponds to deformations of
the spacetime near its spatial infinity. We also examine how
this regularization of the velocity profile picks up a specific boundary
condition for the idealized system, so that both models agree in the long
wavelength limit.Comment: 6 pages, 3 figures. To appear in Phys Rev
Remission of severe antiphospholipid syndrome associated with non-Hodgkin's B-cell lymphoma after combined therapy with rutiximab and chemotherapy
No full textClinical benefit in patients suffering from resistant sclerodermic chronic GvHD after allogeneic hemopoietic stem cell transplantation and treated with synthetic PGI-2
No full textCorrigendum to “Venetoclax in combination with hypomethylating agents in previously untreated patients with acute myeloid leukemia ineligible for intensive treatment: a real-life multicenter experience” [Leukemia Res. 114 (March 2022) 106803](S0145212622000297)(10.1016/j.leukres.2022.106803)
No full textThe authors regret “Rosaria Sancettai is entered as co-author instead of Renato Bassan”. The authors would like to apologise for any inconvenience caused
Remote and terrestrial ground monitoring techniques integration for hazard assessment in mountain areas
No full textIn high mountain regions the choice of appropriate sites for infrastructure such as roads, railways, cable cars or hydropower dams is often very limited. In parallel, the increasing demand for supply infrastructure in the Alps induces a continuous transformation of the territory. The new role played by the precautionary monitoring in the risk governance becomes fundamental and may overcome the modeling of future events, which represented so far the predominant approach to these sort of issues. Furthermore the consequence of considering methodologies alternative to those more exclusive allow to reduce costs and increasing the frequency of measurements, updating continuously the cognitive framework of existing hazard condition in most susceptible territories. The scale factor of the observed area and the multiple purpose of such regional ordinary surveys make it convenient to adopt Radar Satellite-based systems, but they need to be integrated with terrestrial systems for validation and eventual early warning purposes. Significant progress over the past decade in Remote Sensing (RS), Proximal Sensing and integration-based sensor networks systems now provide technologies, that allow to implement monitoring systems for ordinary surveys of extensive areas or regions, which are affected by active natural processes and slope instability. The Interreg project SloMove aims to provide solutions for such challenges and focuses on using remote sensing monitoring techniques for the monitoring of mass movements in two test sites, in South Tyrol (Italy) and in Grisons Canton (Switzerland). The topics faced in this project concern mass movements and slope deformation monitoring techniques, focusing mainly on the integration of multi-temporal interferometry, new generation of terrestrial technologies for differ- ential digital terrain model elaboration provided by laser scanner (TLS), and GNSS-based topographic surveys, which are used not only for validation purpose, but also for adding value and information to the whole monitoring survey. The test sites are currently observed by an original integrated methodology specifically developed within the aim of the project. The integrated monitoring design includes reference targets for the different monitoring systems placed together on the same point or rigid foundation, to facilitate the comparison of the data and, in the operational use, to be able to switch consistently from one to the other system. The principal goal of the project is to define a shared procedure to select scalable technologies, best practices and institutional action plans more adequate to deal with different sort of hazard related to ground displacement, in densely populated mountain areas containing recreational and critical infrastructures
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