Search results for "ALTER"

Agri-Food Markets towards Sustainable Patterns

2020

In recent decades, the confluence of different global and domestic drivers has led to progressive and unpredictable changes in the functioning and structure of agri-food markets worldwide. Given the unsustainability of the current agri-food production, processing, distribution and consumption patterns, and the inadequate governance of the whole food system, the transition to sustainable agriculture and food systems has become crucial to effectively manage a global agri-food market able in supporting expected population growth and ensuring universal access to sufficient, safe, and nutritious food for all. Based on a critical review of the existing international literature, the paper seeks to…

Chemical Composition and Free Radical Scavenging Activity of the Essential Oil of Achillea ligustica Growing Wild in Lipari (Aeolian Islands, Sicily)

2013

In the present study the chemical composition of the essential oils from aerial parts and flowers of Achillea ligustica All., collected in Lipari (Aeolian Islands) was evaluated by GC and GC-MS. ( Z)-Chrysanthenyl acetate was the most abundant component of both oils (29.6% in A1 and 27.8% in F1), followed by viridiflorol (16.8% in A1 and 21.6% in F1), bornyl acetate (8.7% in A1 and 11.6% in F1) and 1,8-cineole (7.4% in A1 and 9.3% in F1). A comparison was made of the composition of the different populations studied so far. Futhermore, the free radical scavenging activity of the oil was determined by DPPH and ABTS methods.

Performance of Host-Races of the Fruit Fly,Tephritis conuraon a Derived Host Plant, the Cabbage ThistleCirsium oleraceum: Implications for the Origin…

2008

The thistle-infesting fruit fly Tephritis conura Loew (Diptera: Tephritidae) forms host races on the melancholy thistle, Cirsium hetewphyllum (L.) Hill (Asterales: Asteraceae) and the cabbage thistle, Cirsium olemceum (L.). Scop. Previous research indicates that the host shift occurred from C. hetewphyllum to C. oleraceum. In this paper we address whether the host shift involved physiological adaptations by studying oviposition acceptance and survival of the two host races on the derived host C. oleraceum. Performance differed significantly between host races. T. conura originating from C. oleraceum produced adults in 75% of all egg-laying trials in contrast to only 6.6% in T. conura origin…

The potential of HPP for minimizing pesticides and toxins in food products

2020

Abstract High-pressure (HP) treatment has emerged as a novel, additive-free food preservation technology. It has been scientifically and commercially proven that HP can produce microbially safe and stable products with improved quality characteristics such as enhanced flavor and color. Recent studies have focused on the effects of HP on health attributes and allergenic potential of foodstuff to develop the next generation of convenience foods. The contamination of produced food in various conditions along the production chain always is the point of concern. In this context, food safety is among the main health concerns worldwide on the occurrence of food contaminants such as heavy metals, h…

Dix ans d'archéologie forestière dans le Châtillonnais (Côte-d'Or) : enclos, habitats, parcellaires

2010

National audience; Ces recherches sur les ensembles de structures de pierre sous forêt sont mises en œuvre depuis dix ans et sont inté- grées depuis 2003 dans le P.C.R. ‘Vix et son Environnement', dirigé par C. Mordant, S. Wirth et B. Chaume. Les vestiges étudiés sont implantés dans deux milieux géographiques distincts mais contigus : le plateau calcaire recouvert par la forêt domaniale de Châtillon, et les rebords de la Digeanne et du Brevon qui entaillent ce plateau à l'est et au sud. La prospection présente ici des caractères particuliers liés au couvert forestier. Les relevés G.P.S. sont intégrés dans un S.I.G. et constituent la base de cette étude, dans un va et vient…

Il valore della formazione integrata tra scuola e lavoro

2021

La metodologia Alternanza Scuola Lavoro, caratteristica dei percorsi di apprendimento basati sul lavoro (Work–Based Learning), è inserita all’interno dei curricoli scolastici e di quelli di istruzione e formazione professionale, presenti sia nel modello educativo italiano sia nella maggior parte dei sistemi educativi europei. I presupposti teorici che l’hanno definita e promossa sono rintracciabili nei primi programmi di Work placements, sandwich courses e negotiated learning, nati dagli studi di John Dewey che concepiva l’istruzione scolastica come un laboratorio continuo di educazione alla vita. Tali programmi sono stati proposti intorno agli anni Settanta–Ottanta nelle università e negli…

The Landscape as a Silent Witness of a Fragile Memory in Paweł Pawlikowski’s 2013 Film Ida

2022

This article focuses on Paweł Pawlikowski’s 2013 film Ida, analysing how the formal and aesthetic aspects question silent witnesses about the difficult past using pictures as a useful testifier. In the context of Poland’s national memory, its current political discourse and the Polish-Jewish relations during World War II, Ida offers a significant contribution. The process of scrutinising this difficult past becomes a journey, a troublesome event when a remembrance must be constructed and experienced. The film journey offers a possibility to get back to this period of time and encourages us to pose certain questions: how do sites of memory remain with us through cinematographic or photograph…

Hydrogen fuel cell vehicle and a stand-alone renewable energy-based refuelling station

2007

The functional significance of colour polymorphism in the European common wall lizard (Podarcis muralis)

2021

Colour polymorphisms, the coexistence of two or more colour morphs of a species within a population, have long fascinated evolutionary biologists interested in the mechanisms generating and maintaining phenotypic variation in nature. The functional significance of colour polymorphisms (i.e. their adaptive value) is often linked to the selective mechanisms responsible for their maintenance over time. In lizards, the hypothesis that colour morphs may reflect alternative reproductive strategies involving differential sociosexual behaviour and/or alternative reproductive strategies has come to dominate the field. Wall lizards (family Lacertidae, genus Podarcis), with several geographically dist…

Alternative energy scenarios for small islands: A case study from Salina Island (Aeolian Islands, Southern Italy)

2012

Abstract The Aeolian archipelago is made up of seven main islands situated in the Tyrrhenian sea (Sicily Italy). They represent a suitable scenario for the development of a sustainable energy production system, that could easily be reproduced on other Mediterranean Islands. The fact that these islands depend on the mainland for energy supplies and the high cost of bringing fuel in tanker boats are factors that should strongly encourage the use of renewable energy source technologies. Taking into account the European Commission guidelines, this paper sets out to evaluate potential energy production using photovoltaic and small scale wind power, in order to verify their contribution to overal…