59,666 research outputs found
Market Value and Patent Citations: A First Look
No full textAs patent data become more available in machine-readable form, an increasing number of researchers have begun to use measures based on patents and their citations as indicators of technological output and information flow. This paper explores the economic meaning of these citation-based patent measures using the financial market valuation of the firms that own the patents. Using a new and comprehensive dataset containing over 4800 U. S. Manufacturing firms and their patenting activity for the past 30 years, we explore the contributions of R&D spending, patents, and citation-weighted patents to measures of Tobin's Q for the firms. We find that citation-weighted patent stocks are more highly correlated with market value than patent stocks themselves and that this fact is due mainly to the high valuation placed on firms that hold very highly cited patents.
Il brand licensing nelle PMI: il calzaturificio Giano Srl
No full textLa storia di Giano srl inizia nel lontano 1946, quando Umberto Intorbida decide di fondare una fabbrica di scarpe, che ai tempi si chiamava Calzaturificio “La Pina” in onore della figlia primogenita. L’impresa, che evolve profondamente in questi 75 anni di storia, vede una famiglia protagonista delle modifiche strategiche ed operative intervenute nel tempo, in particolare tre attori principali: Umberto Intorbida, il fondatore dell’azienda, Otello Paniccià, genero di Umberto, Enrico Paniccià, figlio di Otello e attuale amministratore delegato.
Di pari passo con il passaggio di testimone dalla prima alla terza generazione, l’azienda, da semplice laboratorio artigiano, diventa una realtà di successo, seppur di rimanendo di piccole dimensioni (22 dipendenti – 2019) fortemente legata al territorio (il distretto fermano-maceratese della calzatura e alla qualità, due tratti distintivi molto importanti
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
Studies of the cohesion mechanism of axenic dictyostelium discoideum cells
No full textThe cohesive behaviour of slime mould cells during axenic growth has been studied. Axenically-grown log phase Ax-2 cells cohere rapidly when shaken in phosphate buffer. After 3.5 days in stationary phase, cells become completely non cohesive however, stationary phase cells form mutual contacts with both log phase and aggregation-competent cells. Mixed cohesions of these 2 cell types is inhibited by both EDTA and a low-molecular-weight inhibitory factor present in stationary phase medium. The effect of this factor seems to be specific against contact sites B-mediated cohesion. Plasma membranes isolated from log phase Ax-2 cells inhibit cohesion of homologous cells completely, and partially inhibit cohesion of aggregation-competent cells. Evidence is presented which suggests that these inhibitory effects are directed against contact sites B, mediated by tyccp'o4eivo and non-specific for other species. A soluble extract obtained from log cell membranes with lithium diiodosalicylate (LIS), contains an active component which inhibits cohesion of log phase cells completely, and that of aggregation-competent cells only partially. The active material is sensitive to periodate, stable against heat and binds to Con A-Agarose, beads, suggesting it is a glycoprotein. Evidence is presented to suggest that the extractable inhibitory activity binds to the surface of intact log phase cells. A ligand(glycoprotein) -receptor (carbohydrate-binding protein) model is proposed for the cohesion mechanism of vegetative slime mould cells, and the evidence discussed in relation to known aspects of behaviour in these cells.</p
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
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