1,721,094 research outputs found
Late Oligocene through Early Pleistocene calcareous nannofossils from Western Equatorial Indian Ocean (Leg 115)
No full textLate Pleistocene and Holocene calcareous nannofossil biochronology and paleoceonography across the Arctic Basin
No full textGli istituti scolastici italiani tra rendicontazione e valutazione. Il bilancio sociale come strumento di integrazione tra le due dimensioni?
Full text linkAttualmente nella letteratura economico-aziendale a livello nazionale ed internazionale i contributi
su accountability, valutazione della performance e rendicontazione sociale degli istituti scolastici
sono relativamente pochi. Questo articolo mira a indagare i temi sopra citati focalizzando
l’attenzione sul Bilancio Sociale nel contesto italiano. In particolare, esso punta a contribuire
alla letteratura analizzando le interdipendenze tra il bilancio sociale e gli altri documenti della
programmazione e (auto)valutazione della scuola, nonché comprendere se esso sia in grado di
concludere adeguatamente il ciclo della performance degli istituti scolastici in Italia. L’articolo
riferisce di una ricerca di tipo qualitativo basata non solo sull’analisi della letteratura e della
normativa vigente, ma anche sullo studio documentale di 31 bilanci sociali di istituti scolastici
italiani secondo la strategia di content analysis
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
The Basal Complex stratigraphy of the Helminthoid Monte Cassio Flysch: a key to Eoalpine tectonics of the Northern Apennines
No full textMiddle Miocene Quantitative Calcareous Nannofossil Biostratigraphy in the Mediterranean Region
No full textA revision of the stratigraphy and geology of the south-western part of the Crotone Basin (South Italy)
No full textThe Crotone Basin, located on a stack of nappes piled up during the late Paleogene-Neogene, formed in the late Neogene to Quaternary as a forearc basin of the Ionian arc-trench system. The process of slab rollback caused rapid trench migration, resulting in an extensional- transtensional regime persisting most of the time in the forearc area. The late Neogene tectonic evolution was strongly influenced by a NW-directed fault system, interpreted as basement wrench faults leading to partitioning of the basin into separate sub-basins subject to differential subsidence and mutual displacements. Major sequences identified in the area are regarded as tectono-strati- graphic sequences (TSS). The first of them was laid down in the late Serravallian (?) – Tortonian – early Messinian, during the basin opening stage and is bounded at the top by an erosional unconfor- mity, which may be correlated with the well-known intra-Messinian event of the Mediterranean Salinity Crisis. The second TSS, of mid- dle to late Messinian age, is characterized by strongly syntectonic deposits mostly derived from cannibalization of the lower Messinian succession, first infilling extensional troughs, then involved in an episode of sinistral transpression along the NW-trending fault sys- tem, which generated local overthrusts, sealed by a late Messinian erosional unconformity. The Messinian tectonics probably reflects the interplay between the processes linked to the kinematics of the Calabria block and those triggered by the Salinity Crisis. The ero- sional unconformity is overlain by widespread coarse fluvial con- glomerates, which are the first onlapping term of the third TSS, rep- resented by uppermost Messinian to lower Zanclean deposits, laid down in an extensional-transtensional regime. This TSS was closed by an important late Zanclean episode of dextral transpression along the NW-trending fault system, leading to inversion of the former basins, and limited SW-verging thrusts on fault-restraining bends. The unconformity sealing the structures has a clear expression in the northern, marginal part of the Crotone Basin and correlates down- basin with a conformable surface. The fourth TSS is characterized by a long-lasting phase dominated by extension-transtension, lead- ing to high subsidence rate during the latest Zanclean to Early Plei- stocene, and accommodating a thick succession of slope mudstones including clusters of diatomaceous bands mostly in the D. tamalis and D. brouweri Zones. In the northern part of the Crotone Basin two phases of drowning separated by an uplift pulse at ca. 2.55 Ma can be recognized, the second of which was a dramatic collapse, between 2.3 and 2.1 Ma. The fifth TSS is bounded at the base by an unconformity at the transition between «large» and «small» Gephy- rocapsa Zones, i.e. at around 1.1-1.2 Ma, correlating basinwards with a conformable surface. The unconformity is erosional and locally angular in the marginal part of the basin, where it seals struc- tures generated by a contractional event documented also elsewhere in the Calabria block. This event, which is accompanied by a strike- slip component, is inferred to be coeval to the Lower Pleistocene important transpressional episode along the Pollino shear system, which led to release of the Calabria block from the southern Apennines. The fifth TSS is characterized by resumed dextral transten- sion in the Middle Pleistocene along right-stepping NW-trending faults. This episode generated minor pull-apart sub-basins, showing spectacular growth structures in their infilling successions, which developed with shoaling trend up to inferred Marine Isotope Stages 9-8. The onset of shoaling trend was diachronous, being remarkably younger in the southern sub-basin. In the late Middle Pleistocene to Recent times extensional tectonics was dominating, accompanied by local gravity gliding towards the Ionian Sea, arguably triggered by increase in topographic gradient following hinterland uplift, and implying the activation of a linked, thin-skinned extensional and contractional NE- to NNE-directed fault system, with detachment surface possibly soling into Messinian evaporitic-mudstone deposits. It is concluded that the geologic evolution of the investigated forearc area was characterized by an alternation of long-lived stages of extension-transtension expressed by prolonged subsidence preceded by uplift pulses, and short-lived episodes of contraction-transpres- sion. Major drowning episodes in the forearc area are thought to be coeval to the main phases of spreading in the Tyrrhenian basin
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