1,721,062 research outputs found
Covid-19 vaccine uptake: the role of civic capital to overcome the free rider problem
No full textVaccination rates are likely to reflect the expected benefits and drawbacks for individuals. As a larger share of the population gets vaccinated, individuals have more incentives to free ride and benefit from the positive externalities of a high vaccination rate, while not being affected by the potential harms of receiving vaccination. Using Covid-19 vaccination data at the municipality level in the Italian region of Lombardy, we show that communities with a higher level of civic capital were able to overcome this collective action problem. An indirect measure of the willingness to contribute to a public good (i.e. the share of residents paying the TV licence) proves to be particularly useful to predict the success of vaccination campaigns
D. Hameline, J. Houssaye, P. Kœppelin, P. Mayol, J. Milet, J. Piveteau, A. Rey-Herne : Le sujet de l'éducation. Présentation de D. Dubarle, Édition Beauchesne, Paris, 1979
No full textVœltzel René. D. Hameline, J. Houssaye, P. Kœppelin, P. Mayol, J. Milet, J. Piveteau, A. Rey-Herne : Le sujet de l'éducation. Présentation de D. Dubarle, Édition Beauchesne, Paris, 1979. In: Revue d'histoire et de philosophie religieuses, 60e année n°1, Janvier-mars 1980. pp. 110-111
D. Hameline, J. Houssaye, P. Kœppelin, P. Mayol, J. Milet, J. Piveteau, A. Rey-Herne : Le sujet de l'éducation. Présentation de D. Dubarle, Édition Beauchesne, Paris, 1979
No full textVœltzel René. D. Hameline, J. Houssaye, P. Kœppelin, P. Mayol, J. Milet, J. Piveteau, A. Rey-Herne : Le sujet de l'éducation. Présentation de D. Dubarle, Édition Beauchesne, Paris, 1979. In: Revue d'histoire et de philosophie religieuses, 60e année n°1, Janvier-mars 1980. pp. 110-111
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
Illes de loest, nord i est de Mallorca
No full textEls illots tenen una gran importància ambiental doncs es tracta d'ecosistemes molt especialitzats. Les espècies que hi viuen han de poder suportar condicions molt hostils com per exemple la influència marina, uns recursos alimentaris molt pobres o inclemències atmosfèriques.
Això ha determinat que siguin laboratoris de biodiversitat. En aquest sentit, cal destacar que hi ha espècies endèmiques exclusives d'un únic illot com la lletrera de l'illa Margalides, la camomil·la des Vedrà o la rotgeta de Cabrera. També existeixen invertebrats com caragols o escarabats que, per la seva dificultat per colonitzar nous indrets, han quedat acantonats en aquests territoris evolucionant de manera independent i generant tàxons adaptats a aquestes dures condicions de vida.
Els illots, també són els reductes on han quedat confinades moltes colònies d'aus marines molt amenaçades, com seria el cas del virot petit (Puffinus mauretanicus) i el virot gros (Calonectris diomedea). Altres espècies importants i que solen romandre a aquests hàbitats són les nonetes i la gavina roja. El falcó marí (Falco eleonorae) hi cria també habitualment als penya-segats dels illots de Mallorca, Cabrera, Dragonera i Pitiüses
Epistemic Network on Twitter. A new way to learn
No full textIntroduction: Surgical training results in a combination of surgical knowledge, a careful evaluation of the patients in order to choose the right operative indication and manual skills to perform the procedure, learning also how to manage any post-operative complication. Unfortunately, the level of surgical training is extremely variable being influenced by loco-regional, cultural, age-related, demographic and regulatory matters. The aim of the present study is to show the results of a recent tweetchat about surgical training. Methods: On 19 September 2018, a tweetchat about #SurgicalTraining was launched involving all the followers and the member of the recently born #SoMe4Surgery community. The tweetchat was based on ten questions (Table 1). Four of them have multiple choices while the others were open questions. Results: Between the 13th and the 23rd September 2018, there were 138 users and 837 tweets with a potential reach people of 4,603,607. There was a general agreement on the heavy impact of a dedicated mentor on the preparation of any surgical trainee. Nevertheless, exchange programs and fellowship remain among the best and fastest way of improving surgical skills. In this context, surgical societies play a leading role during the surgical training. In fact, in addition to the previously discussed opportunities, attending international conferences with dedicated trainee sessions can help to socialize with colleagues and acquiring non-technical skills. Conclusion: The professional use of social media can help to fill the gap in surgical training opening new horizons and showing the difficulties present in the world of surgery
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
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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