1,721,159 research outputs found
Politiche della sosta e città - Editoriale
No full textIl numero di TeMA su “Politiche della sosta e città”, fornisce elementi di riflessione ed approfondimento sul ruolo del governo della sosta per la mobilità sostenibile nelle aree urbane, illustrando metodi,strategie, strumenti ed interventi da implementare attraverso lo studio della recente bibliografia e l’analisi di best pratices nazionali e internazionali. In particolare si propongono diversi articoli tecnico scientifici sul tema della sosta nelle tre sezioni Ricerche, Sperimentazioni e Contributi e suggerisce letture, siti web, eventi ed approfondimenti sul caso Napoli nella sezione Osservatori
Politiche della sosta e qualità dell’ambiente urbano
Full text linkDai numerosi Documenti dell’Unione Europea emerge con chiarezza che se la mobilità rappresenta indiscutibilmente un elemento propulsore dello sviluppo urbano, le politiche per la mobilità, e in particolare per la mobilità urbana, necessitano di un deciso ri-orientamento al fine di mitigarne i rilevanti costi ambientali. Ad oggi, il dibattito scientifico e le numerose iniziative promosse in sede europea per la definizione di forme di trasporto urbano sostenibile sembrano convergere su un punto: per accrescere la sostenibilità della mobilità urbana è indispensabile ridurre il numero complessivo di auto e incoraggiare l’utilizzo del trasporto pubblico.
In tale contesto, qual è il ruolo della sosta, che rappresenta indiscutibilmente una delle componenti chiave di una mobilità urbana prevalentemente affidata all’auto privata? Le scelte in materia di sosta costituiscono, di fatto, un elemento chiave per ridurre la dipendenza dall’auto privata all’interno delle città, oltreché rappresentare un rilevante punto di congiunzione tra politiche di trasporto e politiche di uso del suolo. “Regolando la fornitura di parcheggi disponibili, l’uso dell’auto privata può essere scoraggiato, rafforzando allo stesso tempo l’uso di modalità di trasporto alternative”. In altre parole, la drastica limitazione dell’offerta di sosta costituisce uno dei principali strumenti per liberare le città dal traffico veicolare: “sapendo che a destinazione il parcheggio non è disponibile, si sceglieranno modi alternativi per raggiungerle”. La sosta viene dunque oggi riconosciuta da un lato quale problema cruciale, soprattutto nelle aree centrali delle grandi città in grado, in molti casi, di ridurne significativamente l’attrattività, dall’altro quale fattore strategico per un complessivo ripensamento della mobilità in ambito urbano, quale il metodo più diffusamente e agevolmente accettato per limitare l’uso dell’auto.
A fronte di tali considerazioni, questo contributo esplora il complesso rapporto tra politiche della sosta, politiche della mobilità e politiche mirate all’innalzamento della qualità urbana evidenziando, da un lato, la crescente centralità che le politiche per la mobilità hanno assunto ai fini del miglioramento della qualità urbana, dall’altro, la perdurante incoerenza tra politiche della sosta e politiche della mobilità. Infine, sulla base di alcune esperienze innovative in ambito internazionale e dei principali orientamenti che provengono dalla letteratura scientifica, il contributo delinea alcuni indirizzi per ri-orientare le politiche della sosta in ambito urbano, ponendo l’accento su tre esigenze chiave: una più stretta coerenza tra politiche della sosta e politiche per la mobilità; una più efficace gestione della domanda di sosta -specie in alcune aree urbane e per alcune tipologie di sosta- in alternativa a politiche di incremento dell’offerta; una maggiore attenzione all’integrazione tra politiche della mobilità e scelte di assetto del territorio, che condizionano in molti casi in misura rilevante la domanda di sosta
Preterm delivery risk in migrants in Italy. An observational prospective study
No full textBACKGROUND:
Various studies have ascertained different birth outcomes between resident and migrant populations in western countries. Considering preterm delivery (<37 complete weeks of gestation) as a perinatal risk condition, we assessed its rate in migrant and native Italian women who delivered in the main public hospital in Brescia (Italy).
METHODS:
All migrant puerperas and a random sample of native puerperas hospitalized during the period February to May 2005 were included in the study after informed consent and filled in a self-administered multilanguage questionnaire enquiring about sociodemographic and obstetric data. Additional information including last menstrual period was obtained from personal obstetric records.
RESULTS:
As many as 471 puerperas entered the study: 366 Italian and 105 migrant women coming from eastern Europe (41.9%), Asia (20%), South America (10.5%), and Africa (27.6%). Of the migrant population, 67 of 105 (63.8%) were at their first delivery in Italy (median interval from arrival: 3.8 y). Gestational age at delivery was assessed for 456 of 471 women (103 migrants and 353 Italians). A total of 36 (7.9%) preterm deliveries were registered: 22 (6.2%) in Italian and 14 (13.6%) in migrant puerperas (p value = 0.015). The highest preterm delivery rate was observed in African women (20.7%), while women from eastern Europe had a similar rate to Italians. In univariate analysis, factors associated to preterm delivery were parity and length of permanence in Italy. We could not demonstrate any correlation with smoking or with a delayed access to antenatal care (first obstetric evaluation after 12 complete weeks of gestation). In multivariate analysis, African origin was the only independent risk factor for preterm delivery [odds ratio (OR) = 3.54; p = 0.018].
CONCLUSIONS:
In our setting, preterm delivery occurred more frequently in migrant women, particularly of African origin, and it is not associated to delayed access to antenatal care
Preterm delivery risk in native and migrant women : the experience of an Italian Hospital.
No full text
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
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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