1,721,119 research outputs found
Strategie e strumenti per la valorizzazione sostenibile delle produzioni agroalimentari di qualità
No full textORTO GIARDINO PARCO RIUSO E GESTIONE DEI VUOTI URBANI
No full textAsistemico, non organico, frammentato: il panorama urbano contemporaneo rivela l’erosione profonda dei suoi spazi e del suo tessuto di relazioni: le sue parti non sono più pensate come luogo, ma come area di transito. Vie e spazi urbani perdono lo status di segno teso a sostenere relazioni varie per scala e tenore. Un tema ulteriore è l'eterogeneità del tessuto sociale contemporaneo cui consegue il maturare di una pratica urbana che, divergendo da più note e consuete routines, causa uno scollamento tra i tempi della città e i tempi della società. Nasce perciò l’esigenza di un nuovo modo di pensare la città, il cui riferimento sia la persona, non più come costumer, ma come cives, come parte di un insieme coeso, la civitas, fondata su un’identità condivisa.
È importante notare come i desideri che una società reca in sé, siano, non di rado, latenti, tali da non consentire una stima a priori. Essi emergono solo quando la proposta di scenari, aperti a nuovi modi d'uso, li rivela. È la risposta a far emergere la domanda. Se non si può, pertanto, esperire un esame preventivo dei desiderata, si può definire una strategia che riconosca nei vuoti una risorsa per dar vita a nuove iniziative volte a far emergere i desiderata latenti.
La proposta qui presentata vuole sostituirsi ad un’idea del vuoto urbano come mero spazio residuale, concependolo come ambito in cui riunire urbs, civitas e polis, come luogo di condivisione e di formazione di una comunità, data dal lavorare insieme, dal prendere parte ad uno sforzo comune, continuativo e non consueto.
Si ritiene che le figure su cui fondare il recupero dei vuoti siano il giardino, l’orto ed il parco.
La figura del giardino si adatta al recupero di vuoti che si aprono entro o ai margini di tessuti urbani definiti e si configura come sistema verde di minute dimensioni, poco strutturato, teso ad individuare punti in cui le persone possano riunirsi, luogo aperto ad una varietà di minimi e spontanei episodi; L’orto, considerata la figura principe dello spazio pubblico autogestito, è adatto a vuoti di medie dimensioni in cui suolo ed aria non siano fortemente degradati;
Il parco si ritiene la figura più idonea con cui conformare il recupero dei margini di estesi sistemi lineari, promuovendo la creazione di un bordo teso a mediare ambiti diversi.
La previsione del tipo di scenario urbano, dipende da un esame del vuoto, teso a valutare in primis l’estensione, la posizione, il nesso con il tessuto urbano, la natura del suolo.
Ampio è il novero di figure da riunire così da sostenere tale forma di recupero: reti di utenti, portatori di una proposta di nuovi usi; investitori; l’Università e le scuole, al fine di elevare il recupero di un vuoto e la sua gestione a momento educativo.
Non secondario è il ruolo di enti aventi un ruolo nel governo di un’area urbana, cui è deputato lo studio di forme di governance entro cui far maturare un’ipotesi condivisa di riuso e gestione di un vuoto urbano.
Il fine è così innescare una diversità di contenuto il cui esito sia uno scambio intenso e costante. Tali prototipi di spazio urbano, favoriscono poi un recupero temporaneo dei vuoti, che consenta una rapida risposta ad un esteso desiderio latente di nuovi spazi di relazione, che consenta di adeguare un luogo al mutare dei desideri che la civitas reca in sè, che restituisca ai residenti scenari vividi, nel tempo che serve ad individuare forme di recupero permanente
Consumer perception of sustainability attributes in organic and local food
No full textBackground: Although sustainable food consumption is gaining growing importance on the international agenda, research on this subject is still quite fragmented and most studies analyse single aspects of sustainable food consumption with particular reference to environmental sustainability. In addition, the literature highlights the need to take account of the strong heterogeneity of consumers in studying sustainable behaviour. Identifying consumer segments with common profiles, needs and values is essential for developing effective communication strategies to promote sustainability in food consumption. Methods: Consumer segmentation based on the perception of the sustainability attributes of organic and local products was realized using descriptive data collected through a consumer online survey in southern Italy (Campania). K-means cluster analysis was performed to identify different consumer segments based on consumer perception of sustainable attributes in organic and local food. Results: Results confirm the support of consumers for organic and local food as sustainable alternative in food choices even if occasional buying behaviour of these products still predominates. In addition, our results show that an egoistic approach prevails among consumers, who seem to attach more value to attributes related to quality and health than to environmental, social and economic sustainability. Segmentation proves the existence of three consumer segments that differ significantly in terms of perception of sustainability attributes: a large segment of individuals who seem more egocentric oriented, an environmental sustainability oriented segment and a small segment that includes sustainability oriented consumers. Conclusion: The existence of different levels of sensitivity to sustainability attributes in organic and local food among the identified segments could be duly considered by policy makers and other institutions in promoting sustainable consumption patterns. Consumers in the first cluster could be educated about the social and environmental benefits of organic and local consumption, beyond health and quality aspects, by promoting communication strategies aimed at creating a sense of belonging and self-identity in the change process towards sustainability. Consumers in the second cluster could be more informed about the additional social and economic benefits of organic and local consumption that goes beyond the still perceived environmental benefits. The strategic focus should be on attracting interest on the sense of belonging to the local community, in order to further promoting the short supply chain as models based on community building relationships and processes that hold people to place and share responsibility. Finally, it is worth mentioning that the increasing demand for more sustainable food products needs to be coupled with the development and adoption of innovations. In this regards, several patents have been registered for biopesti-cides/insecticides and bioactive agricultural products. However, more scientific evidence of higher yields and other benefits and enabling measures that support farmers are required to broaden adoption of innovation for sustainable agro-food production
Do consumers care about nutrition and health claims? Some evidence from Italy
Full text linkThis study investigates Italian consumer knowledge and use of nutrition and health claims (NHCs). Six specific claims are examined on the basis of a web survey carried out on a sample of 504 consumers. Our results show that there is little attention to NHCs and their use is not widespread; objective knowledge of the selected claims is fairly scant, generating misinterpretation and confusion about their real meaning. K-means cluster analysis allowed us to identify three segments of consumers, characterized by different levels in attention and use frequency of NHCs, with a specific profile in terms of motivation and nutritional knowledge. Our results suggest the advisability of policy interventions and communication efforts which target the three segments with a view to achieving greater attention to NHCs. In conclusion, to boost knowledge concerning the actual meaning of the claims and their relation with a healthy diet, especially to reach non-users, information should be provided both simply and clearly, avoiding the use of complex scientific terminology
Un'iscrizione araba in una vetrata nella chiesa della SS. Annunziata a Firenze
No full textLo studio tratta di una vetrata con un'iscrizione in arabo presente nella chiesa della SS. Annunziata a Firenze. Pur con ripetizioni e incongruenze, l'iscrizione sembra evocare il tipico repertorio presente in alcuni metalli mamelucchi
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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