1,721,171 research outputs found
Analisi della flora di un tratto della ex linea ferroviaria Bologna-Verona, un importante corridoio ecologico nella pianura emiliana centro-orientale = The flora of a part of the abandoned old railway Bologna -Verona, an important ecological corridor in the Emilian north-eastern Po plain
No full textViene descritta la flora del tratto ferroviario abbandonato della linea Bologna-Verona (Italia settentrionale). Il tratto indagato si trova tra la stazione
disabilitata di Tavernelle Emilia (provincia di Bologna) e Camposanto (provincia di Modena). Presenta caratteristiche ecologiche eterogenee perché
la sua struttura non si limita alla sola ferrovia, ma contiene anche ampie scarpate e un corridoio longitudinale tra la vecchia ferrovia e quella
attuale. L’area analizzata è stata divisa in 10 aree campione sequenziate. Sono state complessivamente rinvenute 348 specie vegetali. Il numero
di specie per segmento campione evidenzia la relazione tra complessità strutturale e ricchezza in specie: il numero di specie più elevato è stato
riscontrato sulla lunga rampa che dalla ex stazione di Bolognina porta la ferrovia in prossimità del fiume Panaro. Lo spettro delle forme biologiche
è caratterizzato dall’elevato numero di Terofite, sintomo di ambienti disturbati e fortemente dinamici. L’elevato numero di Fanerofite indica che la
comunità vegetale tende a una struttura più stabile. La forte presenza di specie mediterranee e termofile, maggiore rispetto al territorio circostante,
sottolinea che nell’area esaminata prevalgono habitat soleggiati e aridi. In Appendice la lista completa delle specie e sottospecie rinvenute con i segmenti in cui sono state rilevate.The flora of the old abandoned Bologna-Verona railway (Northern Italy) is described. This part lies between Tavernelle Emilia (Bologna province)
and Camposanto (Modena Province). It has heterogeneous ecological features because its structure is not limited to the railway only, but also
contains high slopes and a longitudinal corridor between the old railway and the current one. The analyzed area was divided into 10 sequenced
sample areas. 348 plant species were sampled. The number of species per sample area highlights the relationship between structural complexity
and species richness: the highest species number was found on the ramp that leads the railway near to the Panaro River. The life forms diversity is
characterized by the high number of Therophytes, as a sign of soil disturbed recently. The high number of Phanerophytes may be explained by an
incoming more stable vegetation structure. The high prevalence of Mediterranean and thermophilous species, which is greater than in surroundings,
underlines that sunny and arid habitats are prevailing in the area examined.
The Appendix contains the complete list of species and subspecies sampled, together with the indication of the sample area where they were found
Notula 1445. Centaurea arrigonii Greuter in NEPI C., PERUZZI L., SCOPPOLA A. (eds.), Notulae alla checklist della flora vascolare italiana: 5.
No full textUn nuovo punto di vista! Ridurre il sessismo benevolo sfruttando inattese asimmetrie spaziali.
No full textLo spazio è la cornice entro cui le persone vivono, interagiscono, ma anche rappresentano le loro esperienze. L’orientamento e l’inquadratura sono elementi chiave delle rappresentazioni visive dei target sociali e vengono sistematicamente sfruttati per comunicare e promuovere una visione stereotipica della società, e in particolare di uomini e donne. Due specifiche asimmetrie spaziali vengono qui prese in esame ed applicate alle differenze stereotipiche tra uomini e donne: lo Spatial Agency Bias (un’asimmetria orizzontale che vede rappresentate le donne con un profilo rivolto verso sinistra piuttosto che verso destra; Chatterjee, 2002) e il Face-ism (un bias che vede rappresentate le donne con un focus sulla figura intera piuttosto che sul volto; Archer, Iritani, Kimes, & Barrios, 1983).
Con la presente ricerca proponiamo una strategia di utilizzo di rappresentazioni spaziali contro-stereotipiche per promuovere una visione meno sessista delle donne. Nello Studio 1 mostriamo come l’apprendimento di una rappresentazione spaziale contro-stereotipica di uomini e donne riduca il sessismo benevolo dei partecipanti. Nello Studio 2 mostriamo che la presentazione di donne in primo piano (piuttosto che a figura intera) riduce il pregiudizio che impedisce l’accesso delle donne alla politica. Le implicazioni sociali delle rappresentazioni spaziali contro-stereotipiche sono discusse alla luce dei risultati emersi nei due studi
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
Metaphors we group by. The role metaphors in social communication.
No full textMetaphors are a powerful tool of communication and thought, but their use in social communication is currently understudied. Four studies investigate with different methods and in relation to various social targets whether metaphors are strategically used to persuade, to sustain a specific worldview and to perpetuate social stereotypes. The first study experimentally confirms that metaphors are a) preferred and b) more frequently used when the goal of the communication is to persuade (vs. inform) other people about a specific issue. The second archival study shows that in Italian newspaper articles different types of metaphors are used to describe Italian vs. Immigrant criminals, specifically that Italian aggressors are described in terms of explosion (e.g., The aggressor’s violence exploded against the victim), whereas Immigrant aggressors are described as beasts (e.g., The immigrant was a beast who attacked its prey). In the third study clinically cases were presented either with a metaphor (e.g., the matchstick girl was anorexic) or with a literal correspondent (e.g., the skinny girl was anorexic) to lay people or people trained in clinical psychology. Results show that metaphors (vs. literal correspondents) exacerbate negative stereotypes of the targets among lay people (but not among clinical psychologists). Finally, Study 3 test and confirm the strategic use of metaphors in intergroup context, showing that metaphors are specifically preferred to communicate negative (vs. positive) characteristics of outgroup (vs. ingroup) members. Together the presented set of studies presents preliminary evidence for a critical role of metaphor use in social communication
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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