1,720,962 research outputs found
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
Management of technological innovations in health care: Analysis and comparison of some regional policies in Italy
No full textThe increasing availability of health technologies to the NHS raises questions about the sustainability and govern of innovative technologies' entry into clinical practice. The relevance of the issue has been recognized at local, regional and central level thus enabling initiatives and tools for managing selection, evaluation, procurement and reimbursement of health technologies. Health technology assessment (HTA) is a rapidly evolving process, embracing different types of assessments about the value of new and existing technologies. Increasingly organizations are undertaking HTA in Italy. The objective of this work is describing and analyzing some recent HTA regional experiences in five Italian Regions: Campania, Emilia Romagna, Friuli Venezia Giulia, Lombardy, Veneto. The comparison focuses on programs' structure, methods, future development and engagement of all stakeholders
Virological Investigation of Avian Influenza Virus on Postglacial Species of Phasianidae and Tetraonidae in the Italian Alps
Full text linkLand-based birds, belonging to Galliformes order are considered to be potential intermediaries in the emergence of new strains of
influenza A viruses (AIVs), but the viral circulation in these birds remains largely unknown. To gain insights into the circulation
of AIV in the wild Galliformes populations in Italian Alps, we conducted a virological survey on rock partridge (Alectoris graeca
saxatilis) belonging to Phasianidae family and on tetraonids including rock ptarmigan (Lagopusmutus helveticus) and black grouse
(Tetrao tetrix tetrix). In 2003 and 2004, during the hunting seasons, 79 wild Galliformes, categorised into age and sex classes,
were hunted in the Sondrio Province (Central Alps). Cloacal swabs were collected from 11 rock partridges and from 68 tetraonids
including 23 alpine rock ptarmigans and 45 black grouses.We tested cloacal swabs by a high sensitive reverse transcription- (RT-)
PCR detecting thematrix gene of AIV.No AIV was detected in the investigated samples, thus, suggesting the lack of AIV circulation
in these relict populations in the study period. In terms of threatened species conservation, during wildlife management activities,
it is very important to exclude the introduction of AIV-carrier birds in shared territories, a fact representing a health risk for these
populations
Cost of care and social consequences of very low birth weight infants without premature- related morbidities in Italy
No full textAim of this study was to estimate the cost that is borne by the Italian National Health Service, families, and social
security due to very low birth weight infants (VLBWIs) without prematurity-related morbidities up to the age of
18 months. We followed up on 150 VLBWIs and 145 comparable full-term infants (FTIs) who were born in one of 25
different neonatal intensive care units upon discharge from the hospital and at six and 18 months of age. The
average length of the primary hospitalisation of the VLBWIs was 59.7 days (SD 21.6 days), with a total cost of
€20,502 (SD €8409), compared with three days (SD 0.4 days) with a total cost of €907 (SD €304) for the FTIs. The
total societal cost of the VLBWIs for the first 18 months of life was €58,098 (SD €21,625), while the corresponding
figure for FTIs was €24,209 (SD €15,557). Among VLBWIs, both low birth weight and gestational age were correlated
with the length of hospitalisation after birth (r2 = 0.61 and r2 = 0.57, respectively; p values < 0.0005). Our findings
highlight that the existing DRGs and tariffs inadequately reflect the actual costs for Italian National Health Service
La gestione dell'innovazione tecnologica in sanità. Analisi e confronto di alcune politiche regionali in Italia
No full textThe increasing availability of health technologies in the NHS raises questions about the sustainability and government of innovative technologies’ entry into clinical practice. The relevance of the issue has been recognized at local, regional and central level thus enabling
initiatives and tools for managing the selection, evaluation, procurement and reimbursement of health technologies. Health technology assessment (HTA) is a rapidly evolving process, embracing different types of assessment about the value of new and existing technologies.
Increasingly, organizations are undertaking HTA in Italy. The objective of this work is to describe and analyse some recent HTA regional experiences in five Italian Regions: Campania, Emilia Romagna, Friuli Venezia Giulia, Lombardy, Veneto. The comparison focuses on programs’ structure, methods, future development and engagement of all stakeholder
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
- …
