1,721,081 research outputs found
Sant'Anselmo. Il filosofo
No full textIl contributo presenta la vita e introduce al pensiero di Sant'Anselmo
La Metafisica di Aristotele nel XX secolo (bibliografia ragionata). Radice, R.
No full textParticipation au volume de bibliographie analysée préparé par RADICE R
Politica (libri V-VIII)
No full textTraduzione dal greco del libri V-VIII della Politica di Aristotel
La "Metafisica" di Aristotele nel XX secolo. Bibliografia ragionata e sistematica
No full textSchede bibliografiche sui contributi del xx secolo riguardanti la Metafisica di Aristotel
Link-based survival additive models under mixed censoring to assess risks of hospital-acquired infections
Full text linkThe majority of methods available to model survival data only deal with right censoring. However, there are many applications where left, right and/or interval censoring simultaneously occur. A methodology that is capable of handling all types of censoring as well as flexibly estimating several types of covariate effects is presented. The baseline hazard is modelled through monotonic P-splines. The model’s parameters are estimated using an efficient and stable penalised likelihood algorithm. The proposed framework is evaluated in simulation, and illustrated using an original data example on time to first hospital infection or in-hospital death in cirrhotic patients. A peak of risk in the first week since hospitalisation is identified, together with a non-linear effect of Model for End-Stage Liver Disease (MELD) score. The GJRM R package, with an implementation of our approach, is freely available on CRAN
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
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