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The paper analyses the entry strategies of software firms that adopt the Open Source production model. A new definition of business model is proposed. Empirical evidence, based on an exploratory survey taken on 146 Italian software firms * , shows that firms adapted to an environment dominated by incumbent standards by combining Open Source and proprietary(More)
This paper contributes to the literature on Open Source (OS) by providing empirical evidence on the incentives of firms that engage in the field. Data collected by a survey on 146 Italian companies supplying OS solutions (<i>Open Source firms</i>) show that (surprisingly) intrinsic, community-based incentives do play a role but are not, in general, put into(More)
PURPOSE To develop a reliable technique for diffusion imaging of the human spinal cord at 1.5 Tesla and to assess potential differences in diffusion anisotropy in cross-sectional images. MATERIALS AND METHODS A single-shot echo-planar imaging sequence with double spin-echo diffusion preparation was optimized regarding cerebrospinal fluid artifacts,(More)
Innovation in the software sector is a widely debated issue. Which are the most important dimensions to assess innovation in this field? Can we measure innovative processes carried out by software companies and what kind of innovation do they develop? Are FOSS solutions more innovative than proprietary ones? These are the research questions we endeavor to(More)
OBJECTIVES The aim of this study was to quantify the influence of image resolution on the apparent transverse relaxivity (R2*) of the magnetic resonance (MR) signal in human renal tissue in vivo and in phantom measurements. MATERIALS AND METHODS This prospective study included 17 healthy volunteers (age, 32 ± 8 years, 6 women). Parametrical R2* maps were(More)
  • Juliana Giacomazzi, Simone Selistre, Juliana Duarte, Jorge Pinto Ribeiro, Paulo JC Vieira, Gabriel de Souza Macedo +5 others
  • 2012
Adrenocortical carcinomas (ACCs) are among the most common childhood cancers occurring in infants affected with the Li-Fraumeni and Li- Fraumeni-like (LFS/LFL) syndromes, which are caused by dominant germline mutations in the TP53 gene. In Brazil, a particular mutation, occurring in the tetramerisation domain of the gene, p.R337H, is exceedingly common due(More)