1,721,537 research outputs found
“Cultura manageriale e identità lavorativa nei sistemi di istruzione. Un’introduzione
No full textThe article deals with the Managerial culture and work identity in education systems”. The first section contextualizes the adoption of neoliberal measures in the working logic of public administration. Foundations of New Public Management and their relevance for education systems are set – together with the idea that they are as relevant as not the only cause of transformation in educational professions and organizations. The second section focuses on the effects of managerial elements on professional practices, where neoliberal recipes are nested in prior organizational models. The third section pays attention to implications for educational professionals, in particular in respect to job fragmentation and individual responsibilization
A test on a Neuro-Fuzzy algorithm used to reduce continuous gravity records for the effect of meteorological parameters
No full textGravity measurements are utilized at active volcanoes to detect mass changes linked to magma transfer processes and thus to recognize forerunners to paroxysmal volcanic events. Continuous gravity measurements are now increasingly performed at sites very close to active craters, where there is the greatest chance to detect meaningful gravity changes. Unfortunately, especially when used against the adverse environmental conditions usually encountered at such places, gravimeters have been proved to be affected by meteorological parameters, mainly by changes in the atmospheric temperature. The pseudo-signal generated by these perturbations is often stronger than the signal generated by actual changes in the gravity field. Thus, the implementation of well-performing algorithms for reducing the gravity signal for the effect of meteorological parameters is vital to obtain sequences useful from the volcano surveillance standpoint. In the present paper, a Neuro-Fuzzy algorithm, which was already proved to accomplish the required task satisfactorily, is tested over a data set from three gravimeters which worked continuously for about 50 days at a site far away from active zones, where changes due to actual fluctuation of the gravity field are expected to be within a few microgal.
After accomplishing the reduction of the gravity series, residuals are within about 15μGal peak-to-peak, thus confirming the capabilities of the Neuro-Fuzzy algorithm under test of performing the required task satisfactorily.Published11partially_ope
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
Se le regole cambiano “a partita in corso”: Il reclutamento scolastico e le sue conseguenze sugli insegnanti
Full text linkIn Italia, il reclutamento scolastico è un ambito dell’azione politica particolarmente opaco e scarsamente strutturato. L’assenza di un piano di assunzioni organico e coerente contraddistingue l’intera storia italiana, e ha senza dubbio a che fare con l’esigenza di contenere i costi del personale. L’espletamento dei concorsi richiede cospicui investimenti e le spese fisse per i docenti di ruolo gravano sul bilancio ministeriale in misura maggiore rispetto a quelle per i precari (Gremigni 2013).
La “precarizzazione” strutturale del corpo docente italiano è dunque un processo istituzionale, deliberato, da cui derivano conseguenze materiali che, a loro volta, rivestono una forte valenza politica. La frammentarietà del reclutamento, nello specifico, ha prodotto nel tempo evidenti effetti in termini di mobilità territoriale e sociale. Quanto più precarie sono le forme di stabilizzazione in ruolo, tanto più aumenta la disponibilità a spostarsi al fine di accedere al servizio in maniera permanente (Causarano 2012). Inoltre, i criteri che regolano il passaggio dal precariato alla stabilità producono soggetti che, a prescindere dai loro comportamenti individuali, occupano strati differenti nella scala della collocazione economica e lavorativa, così come in quella del riconoscimento professionale e sociale
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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