1,721,168 research outputs found
Celestino Schiaparelli: Librarian
No full text· The Schiaparelli Library was donated by Celestino Schiaparelli’s wife Maria to the Oriental School in 1920. It is an academic’s library, but also and above all a librarian’s library: Schiaparelli worked in fact aslibrarian at the Accademia dei Lincei for 27 years, and also obtained ministerial appointments and positions relating to libraries as an Arabist. Many of the obsessions characteristic of the profession are recognisable in his library, and rigorous attention is paid to sources that can help identify editions, especially those in Arabic. Commentsfrom authoritative scholars and reviews are also noted, especially for works in European languages. In fact, on Arabic volumes we often find the reference to the two volumes of Carl Brockelmann’s Geschichte der arabischen Litteratur, with volume and page number, as well as indications of the date of birth and death of the authors. All these
elements were noted, as well as the numbers and letters found on each volume, in order to verify whether an internal classifcation of the library as conceived by Schiaparelli himself is tenable. Our contribution, then, can be considered an attempt to show Schiaparelli’s ambition to build up his library as a collection which – following the Gessnerian aspiration towards a collection of all thebooks indispensable to an Arabist – brings indications and cross-references from one work to theother to its volumes, similar to actual catalogue cross-references. It is a library that speaks first and foremost to the librarian, and tells us about the librarian as well as the Arabist
Una biblioteca nella biblioteca. Singolarità e caratteristiche del Fondo Bertuccioli
No full textLa biblioteca del professore Giuliano Bertuccioli è stata donata al Dipartimento ISO dell’Università La Sapienza di Roma nel 2014 dal figlio Bruno unitamente a un prezioso archivio personale. La donazione è stata collocata nella sala principale della biblioteca ISO seguendo fedelmente l’ordinamento originario del materiale librario documentato da un centinaio di foto scattate in casa Bertuccioli prima che le operazioni di trasloco avessero inizio. Le monografie e tutte le opere in fotocopia rilegate sono stati suddivisi in 23 sezioni in base a una macrodivisione per argomento; a seguire sono stati posti i periodici (155 titoli), mentre l’archivio occupa una sezione a parte nello stesso armadio. La sigla di collocazione è BAI, acronimo di Bertuccioli Ambasciatore Italiano e le singole sezioni si succedono seguendo l’alfabeto.
Al momento attuale sono stati attribuiti circa 13.000 inventari, e possiamo ragionevolmente affermare che la catalogazione dell’intero fondo verrà terminata entro il 2022.
Se può essere accolta la definizione di biblioteca d'autore come “una raccolta libraria privata e personale che, per le sue caratteristiche interne, tramite i singoli documenti e nell'insieme della collezione, sia in grado di testimoniare l'attività intellettuale, la rete di relazioni, il contesto storico culturale del suo possessore”, in questo mio intervento vorrei dimostrare come la biblioteca del Professore sia ascrivibile a tutti gli effetti a questa categoria, fornendo anche esempi delle evidenze contenute nei volumi, siano esse dediche, appunti, osservazioni, fogli sciolti, ritagli, note relative all’acquisto.
Si tratta di una straordinaria testimonianza di come la biblioteca sia stata intesa sia come supporto alla propria attività di ricerca che come organismo vivente e in crescita con proprie relazioni interne costruite in decenni di studio, ma anche come punto di riferimento per gli studi di settore. Risulta altresì molto interessante il modo in cui questo fondo si sia integrato nella preesistente biblioteca dipartimentale, divenendone una parte fondamentale e caratterizzante, nonché fonte di conoscenze e riflessioni anche per i bibliotecari
Performance Analysis of a Microthruster for Satellite Applications
No full textScientific space missions require a very high accuracy of positioning and orientation of the satellites in order to meet their objectives. Such accuracy can be obtained through a set of positioning thrusters, which need to be able to generate very low forces with high precision. This result can be obtained using cold gas thrusters. A method for the design and the forecast of the expected performance of such thrusters will be presented
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
No full text“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
No full textWe 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
No full textWe 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
RB1 Germline Variant Predisposing to a Rare Ovarian Germ Cell Tumor: A Case Report
No full textMalignant ovarian germ cell tumors (MOGCTs) are neoplasms of the ovary, of which, due to their rarity and heterogeneity, few is reported about genetic background and development. Here, we report a 18-years old patient diagnosed with an ovarian mixed germ cell tumor, without any previous history of malignancies, who has been treated with surgery and chemotherapy and died 4 years later due to peritoneal metastasis complications. Patient's blood DNA was screened for a panel of 52 cancer-related genes in order to identify predisposing aberrations to this rare cancer. The analysis discovered the uncharacterized c.2393G>A variant in RB1, the retinoblastoma gene, leading both to a missense change and a splicing perturbation of the RB1 transcript. The variant was found to be hypomorphic, damaging the C-terminal domain with a partially impaired protein function. The variant is inherited from the unaffected mother. Due to an imprinting mechanism, the maternal allele is ~3-fold more expressed than the paternal one. The parent-of-origin effect combined with the hypomorphic impact of the variant determines a rescue of sufficient tumor-suppressor activity to prevent retinoblastoma development but can predispose to other cancers in the adult age. In order to understand the somatic events acting on the germline predisposition we used the NGS-liquid biopsy covering 77 cancer driver genes. Using this approach, we detected deleterious mutations in TP53, SMAD4, FGFR3, and MSH2, indicative of a dis-regulation of cell cycle and DNA repair mechanisms pathways. In conclusion, we have pinpointed for the first time that an RB1 leaky variant, not leading to retinoblastoma because of its maternal origin, can predispose in adults to a very rare form of ovarian cancer and that the somatic disruption of few genes contributes to the tumor progression and aggressiveness. © 2020 Gelli, Fallerini, Valentino, Giliberti, Castiglione, Laschi, Palmieri, Fabbiani, Tita, Mencarelli, Renieri and Ariani
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