Search results for "11"

Greening a university campus: trends of energy consumption and possible sustainable paths

2014

Recent years have seen an increasing public interest in issues related to energy saving and environmental pollution reduction of public buildings, such as those in university campuses, that should set an example of sustainable development. University campuses are usually characterized by the daily presence of a high number of people working and living in a relatively limited area. They are sites of a wide spread of functions, ranging from teaching to laboratory activities, from housing and food preparation to local transportation. All these activities require remarkable amount of energy that, actually, are not always utilized with the best possible efficiency. This calls for a deep reconsid…

Requalification of the Tobacco Factory in Palermo with destination to social finalities

2016

From the Sixties and for many years later the construction of new buildings, both public and residential, has made our cities more and more large, with a great squandering of ground, pollution and reduction of the green areas. A necessary trend reversal has implied a growing interest towards the rehabilitation and requalification of the brownfields. These, both inside the urban fabric and in suburban areas, offer complexes of buildings with great potentiality for a sustainable reuse both from the social point of view and from the environmental one. The large dimensions, the great spans and the materials usually used make these buildings suitable to a recovery which makes possible a rehabili…

Preliminary Evaluation of Plasmix Compound from Plastics Packaging Waste for Reuse in Bituminous Pavements

2021

Finding an appropriate technical solution for reusing waste plastics is crucial for creating a circular plastic economy. Although mechanical recycling is the best option for recycling post-consumer plastics, some heterogeneous mixed plastics cannot be recycled to produce secondary material due to their very low properties. In this case, alternative routes should be considered in order to limit their disposal as much as possible. Therefore, in order to solve the environmental problems in the landfills of plastic waste recycling, and to improve the mechanical performance of bitumen for road pavement, the reuse of these post-consumer plastic wastes are preliminarily evaluated for the modificat…

MUV: A Game to Encourage Sustainable Mobility Habits

2019

This working paper investigates the question of changing people mobility towards more sustainable habits involving them in an engaging gameplay. The work is performed within MUV H2020 research and innovation action. The game design, definition and features have been co-created through the involvement of different citizens and stakeholders in six European neighbourhoods. The paper discusses the game design as resulting from co-creation and co-design experiences with each neighbourhood communities involved in initial phases. The paper argues that the local co-design activities have influenced the game definition, together with the community engagement approach. The MUV gameplay approach resul…

ON SOME BEHAVIOURAL DECISION FOR POSTEMBRYONIC DEVELOPMENT AND FOR RESOURCE COMPETITION OBSERVED IN EULOPHID ECTOPARASITES (HYMENOPTERA: CHALCIDOIDEA…

2000

Physiological and autonomic stress responses after prolonged sleep restriction and subsequent recovery sleep in healthy young men

2018

Purpose Sleep restriction is increasingly common and associated with the development of health problems. We investigated how the neuroendocrine stress systems respond to prolonged sleep restriction and subsequent recovery sleep in healthy young men. Methods After two baseline (BL) nights of 8 h time in bed (TIB), TIB was restricted to 4 h per night for five nights (sleep restriction, SR, n = 15), followed by three recovery nights (REC) of 8 h TIB, representing a busy workweek and a recovery weekend. The control group (n = 8) had 8 h TIB throughout the experiment. A variety of autonomic cardiovascular parameters, together with salivary neuropeptide Y (NPY) and cortisol levels, were assessed.…

E se il punteruolo affamasse Steinernema carpocapsae?

2023

Rhynchophorus ferrugineus (Olivier 1790) (Coleoptera: Curculionidae), phytophagus of palms, has been used as a model to deepen the knowledge of the host-entomopathogen relationship. The effects of Steinernema carpocapsae (Nematoda: Steinernematidae) on the growth and immunoactivity of R. ferrugineus larvae were compared with another model insect Galleria mellonella L. (Lepidoptera: Pyralidae). Although S. carpocapsae had a negative effect on the weight and mortality of R. ferrugineus, it was not able to replicate in the hemolymph with the same rates found for the moth. In vivo and in vitro effects of S. carpocapsae on the phagocytic responsesof the hemocytes of R. ferrugineus and G. mellone…

Lotta alla mosca delle olive in olivicoltura integrata e biologica

2012

Bactrocera oleae, fitofago chiave dell’agroecosistema olivo, è presente in Italia in tutti gli areali interessati dalla coltura, tranne in alcune aree caratterizzate da maggiore altitudine dove il fattore termico non consente lo sviluppo della specie. Il dittero è fortemente legato alle temperature che del resto condizionano anche la fenologia dell’olivo; in effetti il numero di generazioni che la mosca può completare nell’anno varia da 1 fino a 4-5 in zone con temperature medie annue elevate (zone costiere e/o meridionali). La pericolosità della specie è pertanto legata al numero di generazioni e all’andamento climatico che, a seconda dell’annata e della zona, possono variare sensibilmente…

The Lotus japonicus ROP3 Is Involved in the Establishment of the Nitrogen-Fixing Symbiosis but Not of the Arbuscular Mycorrhizal Symbiosis

2021

Legumes form root mutualistic symbioses with some soil microbes promoting their growth, rhizobia, and arbuscular mycorrhizal fungi (AMF). A conserved set of plant proteins rules the transduction of symbiotic signals from rhizobia and AMF in a so-called common symbiotic signaling pathway (CSSP). Despite considerable efforts and advances over the past 20 years, there are still key elements to be discovered about the establishment of these root symbioses. Rhizobia and AMF root colonization are possible after a deep cell reorganization. In the interaction between the model legume Lotus japonicus and Mesorhizobium loti, this reorganization has been shown to be dependent on a SCAR/Wave-like signa…

Solvability of the divergence equation implies John via Poincaré inequality

2014

Abstract Let Ω ⊂ R 2 be a bounded simply connected domain. We show that, for a fixed (every) p ∈ ( 1 , ∞ ) , the divergence equation div v = f is solvable in W 0 1 , p ( Ω ) 2 for every f ∈ L 0 p ( Ω ) , if and only if Ω is a John domain, if and only if the weighted Poincare inequality ∫ Ω | u ( x ) − u Ω | q d x ≤ C ∫ Ω | ∇ u ( x ) | q  dist  ( x , ∂ Ω ) q d x holds for some (every) q ∈ [ 1 , ∞ ) . This gives a positive answer to a question raised by Russ (2013) in the case of bounded simply connected domains. In higher dimensions similar results are proved under some additional assumptions on the domain in question.