1,721,008 research outputs found
La divisione del lavoro intellettuale. (Teoria e previsione dello spreco di laureati e diplomati in Italia, attraverso il modello CRS/2)
No full textSecolarizzazione di massa, separazione tra sistemi produttivo e formativo, disoccupazione intellettuale e divisione sociale del lavoro sono i temi di base di questa ricerca promossa dalla Comunità di Ricerca Sociale di Milano. Una ricerca che, negli intenti degli autori, non si limita a fornire un quadro della situazione presente o passata del mercato del lavoro in Italia, ma si propone di formulare ipotesi per il futuro, offrendo anche, in chiave problematica, strumenti per controllare il loro grado di attendibilità.
Di qui la decisione di costruire un modello econometrico (CRS/2) che, oltre a rendere possibile un approccio globale al fenomeno studiato, permette di simulare politiche pubbliche alternative finalizzate a un migliore utilizzo della forza lavoro intellettuale.
Tre sono gli scenari previsti dal modello: una situazione di “status quo”, in cui i due sub sistemi formativo e produttivo continuano a ‘funzionare’ spontaneamente; e i due scenari riformatori, nell’ambito dei quali su valuta l’efficacia di alcune strategie di intervento in due ipotetiche, differenti situazioni di sviluppo del Paese.
Individuato il nodo del problema nel vigente assetto della divisione del lavoro, che privilegia il lavoro intellettuale tradizionale a scapito del lavoro tecnico-scientifico e produttivo, si indica uno sbocco della situazione nella possibilità di redistribuire i lavori produttivi e nel superamento della divisione tra lavori “manuali” e “intellettuali”
Investigation on the presence of aromatic hydrocarbons, policyclic aromatic hidrocarbons, persistent organochloride compounds, phthalates and the breathable fraction of atmospheric particulate in the air of Rieti urban area
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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
Pre-Operative CT-Based Planning Integrated With Intra-Operative Navigation in Reverse Shoulder Arthroplasty: Data Acquisition and Analysis Protocol, and Preliminary Results of Navigated Versus Conventional Surgery
Full text linkReverse total shoulder arthroplasty (RSA) successfully restores shoulder function in different conditions. Glenoid baseplate fixation and positioning seem to be the most important factors influencing RSA survival. When scapular anatomy is distorted (eccentric osteoarthrirtis, rotator cuff arthropathy), optimal baseplate positioning and secure screw purchase can be challenging. The aim of this study was to evaluate whether CT-based pre-operative planning, integrated with intra-operative navigation could improve glenoid baseplate fixation and positioning by increasing screw length, reducing number of screws required to obtain fixation and increasing the use of augmented baseplate to gain the desired positioning. Twenty patients who underwent navigated RSA were compared retrospectively with 20 patients operated on with a conventional technique. All the procedures were performed by the same surgeon, using the same implant. Mean screw length was significantly longer in the navigation group (35.5 ± 4.4 mm vs 29.9 ± 3.6 mm; p =.001). Significant higher rate of optimal fixation using 2 screws only (17 vs 3 cases, p =.019) and higher rate of augmented baseplate usage (13 vs 4 cases, p =.009) was also present in the navigation group. Pre-operative CT-based planning integrated with intra-operative navigation can improve glenoid component positioning and fixation, possibly leading to an improvement of RSA survival. © The Author(s) 2020
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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