749 research outputs found
The Hirsch spectrum: a novel tool for analysing scientific journals
No full textThis paper introduces the Hirsch spectrum (h-spectrum) for analyzing the academic reputation of a scientific journal. h-Spectrum is a novel tool based on the Hirsch (h) index. It is easy to construct: considering a specific journal in a specific interval of time, h-spectrum is defined as the distribution representing the h-indexes associated to the authors of the journal articles. This tool allows defining a reference profile of the typical author of a journal, compare different journals within the same scientific field, and provide a rough indication of prestige/reputation of a journal in the scientific community. h-Spectrum can be associated to every journal. Ten specific journals in the Quality Engineering/Quality Management field are analyzed so as to preliminarily investigate the h-spectrum characteristic
A Survey of Quality Engineering-ManagementJournals by Bibliometric Indicators
No full textThis paper analyses some of the most popular scientific journals in the Quality field from the point of view of three bibliometric indicators: the Hirsch (h) index for journals, the total number of citations and the h-spectrum. In particular, h-spectrum is a novel tool based on h, making it possible to (i) identify a reference profile of the typical authors of a journal; (ii) compare different journals; and (iii) provide a rough indication of their ‘bibliometric positioning' in the scientific community. Results of this analysis can be helpful for guiding potential authors and members of the scientific community in the Quality Engineering/Management area. A large amount of empirical data are presented and discusse
Proposals for evaluating the regularity of a scientist'sresearch output
No full textEvaluating the career of individual scientists according to their scientific output is a common bibliometric problem. Two aspects are classically taken into account: overall productivity and overall diffusion/impact, which can be measured by a plethora of indicators that consider publications and/or citations separately or synthesise these two quantities into a single number (e.g. h-index). A secondary aspect, which is sometimes mentioned in the rules of competitive examinations for research position/promotion, is time regularity of one researcher's scientific output. Despite the fact that it is sometimes invoked, a clear definition of regularity is still lacking. We define it as the ability of generating an active and stable research output over time, in terms of both publications/ quantity and citations/diffusion. The goal of this paper is introducing three analysis tools to perform qualitative/quantitative evaluations on the regularity of one scientist's output in a simple and organic way. These tools are respectively (1) the PY/CY diagram, (2) the publication/citation Ferrers diagram and (3) a simplified procedure for comparing the research output of several scientists according to their publication and citation temporal distributions (Borda's ranking). Description of these tools is supported by several examples
Analysis of the Hirsch index's operational properties
No full textThe h-index is a relatively recent bibliometric indicator for assessing the research output of scientists, based on the publications and the corresponding citations. Due to the original characteristics of easy calculation and immediate intuitive meaning, this indicator has become very popular in the scientific community. Also, it received some criticism essentially because of its ‘‘low" accuracy. The contribution of this paper is to provide a detailed analysis of the h-index, from the point of view of the indicator operational properties. This work can be helpful to better understand the peculiarities and limits of h and avoid its misuse. Finally, we suggest an additional indicator ðf Þ that complements h with the information related to the publication age, not compromising the original simplicity and immediacy of understandin
Hōrou Apollōnos Neilōou Hieroglyphika eklekta = Hori Apollinis Selecta hieroglyphica : imagines vero cum priuilegio.
No full textIncludes errata, p. 256, and index at end.The first 111 emblems consist of woodcut ill. with motto and explanation in both Latin and Greek. The 7 emblems not by Horus Apollo added at the end have Latin text only.Edited by Franceschini for use in schools; see his preface, p. 3-4. The translation of Horapollo's lost Coptic original text into Greek is attributed to "Philippus" on p. 5.Mode of access: Internet.Binding: old limp vellum. Brief title and author written on spine. Remains of two pairs of ties at foredge
Quality & Quantity journal: a bibliometric snapshot
No full textThis article analyzes the Quality & Quantity journal from the point of view of some bibliometric indicators: the Hirsch (h) and the g-index for journals, the total number of citations, the h- and the g-spectrum. Journal time evolution is also studied and discussed in detail. As a final point, an interesting issue about how to objectively evaluate the journal popularity in the professional world—rather than the scientific/academic—is presented and left ope
Afterlives of Chinese Communism: Political Concepts from Mao to Xi
No full textAfterlives of Chinese Communism comprises essays from over fifty world- renowned scholars in the China field, from various disciplines and continents. It provides an indispensable guide for understanding how the Mao era continues to shape Chinese politics today. Each chapter discusses a concept or practice from the Mao period, what it attempted to do, and what has become of it since. The authors respond to the legacy of Maoism from numerous perspectives to consider what lessons Chinese communism can offer today, and whether there is a future for the egalitarian politics that it once promised
A scalable preconditioning framework for stabilized contact mechanics with hydraulically active fractures
No full textA preconditioning framework for the coupled problem of frictional contact
mechanics and fluid flow in the fracture network is presented. The porous
medium is discretized using low-order continuous finite elements, with
cell-centered Lagrange multipliers and pressure unknowns used to impose the
constraints and solve the fluid flow in the fractures, respectively. This
formulation does not require any interpolation between different fields, but is
not uniformly inf-sup stable and requires a stabilization. For the resulting 3
x 3 block Jacobian matrix, we design scalable preconditioning strategies, based
on the physically-informed block partitioning of the unknowns and
state-of-the-art multigrid preconditioners. The key idea is to restrict the
system to a single-physics problem, approximately solve it by an inner
algebraic multigrid approach, and finally prolong it back to the fully-coupled
problem. Two different techniques are presented, analyzed and compared by
changing the ordering of the restrictions. Numerical results illustrate the
algorithmic scalability, the impact of the relative number of fracture-based
unknowns, and the performance on a real-world problem.Comment: 25 pages, 11 figures, 7 table
The 2016 classification criteria for primary Sjogren’s syndrome: what’s new?
No full textAbstract New 2016 ACR/EULAR classification criteria for primary Sjogren’s syndrome (SS) have been developed and endorsed by the ACR. The newly proposed criteria include simple-to-perform items. Two important points of the new criteria should be considered. Firstly, they indicate that either salivary gland biopsy or anti-Ro must be positive in order to corroborate the inflammatory and autoimmune nature of the disease. Secondly, the criteria recognize the systemic nature of SS, namely that patients without salivary or ocular glandular symptoms, but with extraglandular manifestations and B cell activation markers were also included in the SS classification. Additionally, the new criteria modified some technical points. The ocular staining score threshold was increased to 5 due to the higher specificity. The immunological profile includes only anti-Ro antibodies, while positivity for antinuclear antibodies and rheumatoid factor or isolated anti-La was excluded due to a lack of specificity. The 2016 ACR/EULAR criteria are suitable for early identification of SS, providing patients with the opportunity of enrollment in clinical trials for new specific treatment. Although validation has been successful, the real life application of these criteria will test their performance
Emilia Franceschini: la prima bibliotecaria all’Università di Firenze
No full textEmilia Franceschini’s first job was in her father's bookshop, where intellectuals used to meet. In 1918 she started working at the Library of the Branch of Medicine and Surgery of the Institute of Higher Practical and Advanced Studies, in Florence. She was the first woman to be mentioned among the staff of the Institution, which would become the University of Florence in 1924.Franceschini also devoted herself a great deal to translating, and published numerous cultural articles. In the library she mainly dealt with cataloguing of both modern and rare books and, in addition, she reorganised some archival fonds.Despite the fact that she earned recognition and respect for her work, she never succeeded in covering the role of ‘librarian’ at the University; even though a position was opened in 1923, because women were prevented from participating. In 1929 she contributed to set up the first National Exhibition of the History of Science, curating the exhibition of rare printed books and manuscripts of the Library.She died in 1933 at the age of 68.Emilia Franceschini svolse il suo primo lavoro nella libreria del padre, frequentata da intellettuali. Nel 1918 cominciò a lavorare per la Biblioteca della Sezione di medicina e chirurgia dell’Istituto di studi superiori pratici e di perfezionamento di Firenze. Fu la prima donna ad essere citata tra il personale dell’istituzione che diventerà nel 1924 Università di Firenze.Franceschini si dedicò molto anche all’attività di traduzione e pubblicò numerosi articoli di argomento culturale. In biblioteca si occupò principalmente di catalogazione di libri moderni e antichi e riordinò alcuni fondi archivistici.Nonostante i numerosi riconoscimenti e gli attestati di stima ottenuti per il suo lavoro, non riuscì mai a ricoprire il ruolo di ‘bibliotecaria’ dell'Università: quando, nel 1923, fu messo un posto a concorso, alle donne fu impedito di partecipare.Nel 1929 contribuì all’allestimento della prima Mostra nazionale di storia della scienza, curando l’esposizione di libri a stampa e manoscritti antichi della Biblioteca.Morì nel 1933 all’età di 68 anni
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