1,721,161 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
Concertare per pianificare: le aree destinate ad usi produttivi nel Ptp di Venezia
No full textVolume a cura d
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
Spontaneous pregnancy and unexplained infertility: a gift with many whys
No full textThe
dualism between the so‐called “Psychogenic hypothesis”
and the hypothesis of “Psychological consequences
of infertility” has been solved with the proposal of
an interactive and bidirectional relationship between
infertility and psychosocial diseases.[1] Infertility itself
can cause severe stress on both partners and start a
vicious cycle resulting in the decreasing likelihood of
pregnancy and even of treatment success. The infertility
treatment could be responsible for a major impairment
of the sex life because it frequently digs into the intimacy
of the coupl
Scaling blockchains without giving up decentralization and security: A solution to the blockchain scalability trilemma
No full textPublic blockchains should be able to scale with respect to the number of nodes and to the transactions workload. The blockchain scalability trilemma has been informally conjectured. This is related to scalability, security and decentralization, stating that any improvement in one of these aspects should negatively impact on at least one of the other two. In fact, despite the large research and experimental effort, all known approaches turn out to be tradeoffs. We theoretically describe a new blockchain architecture that scales to arbitrarily high workload provided that a corresponding proportional increment of nodes is provisioned. We show that, under reasonable assumptions, our approach does not require tradeoffs on security or decentralization. To the best of our knowledge, this is the first result that disprove the trilemma considering the scalability of all architectural elements of a blockchain and not only the consensus protocol. While our result is currently only theoretic, we believe that our approach may stimulate significant practical contributions
Administration of micronized palmitoylethanolamide (PEA)-transpolydatin in the treatment of chronic pelvic pain in women affected by endometriosis. preliminary results [Utilizzo della Palmitoiletanolamide micronizzata (PEA)-transpolidatina nel trattamento del dolore pelvico cronico in donne affette da endometriosi. Risultati preliminari]
No full textAim. Aim of the study was to evaluate the effectiveness of micronized palmitoylethanolamide (PEA)-transpolydatin in the treatment of chronic pelvic pain in women affected by endometriosis. Methods. Twenty-four patients with suspected endometriosis affected by severe pelvic pain were enrolled. All patients received two tablets a day of PEA 400 mg and 40 mg polydatin for 90 days consecutively. A Visual Analogic Scale was used for the assessment of the severity of global pain, dysmenorrhea, dyspareunia, dysuria and dischezia. A second questionnaire was submitted to patients to assess the quality of life. The compilation of a diary lead us to evaluate the monthly assumption of any painkillers. Patients were evaluated at the begin of the treatment and then monthly until the end of the study (90 days). The statistical analysis was performed by using the ANOVA for the analysis of variance. Results. Statistically significant results were found in relation to pelvic pain, dysmenorrhea and dyspareunia compared to the initial evaluation of patients. Results related to dysuria and dischezia were not statistically significant (P>0.05). The decrease in pelvic pain leads to an improvement of the quality of life of patients. A decreased assumption of non-steroidal anti-inflammatory drugs (NSAIDs) was also observed. Conclusion. PEA could be considered an effective supplement to conventional analgesic therapies in the management of pelvic pain related to endometriosis
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
- …
