178,937 research outputs found
Itinerario delle pitture, sculture, ed architetture più rare di molte città d'Italia /
No full textSignatures: A-R⁸ S¹⁰.Mode of access: Internet.Copy 2 bound with: De' precetti della pittura libri IV. Vicenza : Nella stamperia Turra, 1781 (c.2)Binding, c.1: modern boards; gilt red leather label on spine; original sprinkled paper wrappers bound in
Addressing R&D Investment Decisions: a Critical Review and Comparison of R&D Project Selection Methods
No full textA large number of methodologies for R&D project selection have been developed and reported in literature over the last few decades, and it has become a very popular research topic since the 1960s. The aim of this paper is to classify and characterize the determining aspects behind the research and development project selection process. The authors have identified the key issues for the comparison of the existing techniques used to evaluate alternative projects and portfolios of R&D projects. This paper discusses the strengths, weaknesses, limitations and practicality of the methods with the aim of providing a set of guidelines to help managers to choose the project evaluation and selection model appropriate for their specific problems. It concludes with the suggestion about some integrated models (hybrid approach) and the latest solutions which could fill the gaps in existing selection methods
Energy calibration and observation of the Higgs boson in the diphoton decay with the ATLAS experiment
No full textATLAS is one of the four main experiments at the LHC proton-proton accelerator at CERN. This thesis describes two correlated topics: the observation for the Higgs boson in the diphoton channel and the Monte Carlo calibration of electrons and photons. The Higgs boson is a particle predicted by the Standard Model to explain the mechanism for electroweak symmetry breaking, giving masses to the particles. A particle compatible with the SM Higgs boson has been discovered by the ATLAS and CMS experiments in 2012. If this new boson is the Higgs boson, all fundamental parameters of the SM are known and, for the first time, it is possible to overconstrain the SM at the electroweak scale and to evaluate its validity. The proton-proton collision datasets used for the diphoton analysis correspond to integrated luminosities of 4.8 fb-1 collected at sqrt(s) = 7 TeV and 13.0 fb-1 collected at sqrt(s) = 8 TeV. The results, for the first time, establish the observation in the diphoton channel alone. The observation has a local significance of 6.1 standard deviations with a measured mass of 126.6 +/- 0.3 (stat) +/- 0.7 (syst) GeV. The fitted number of signal events is found to be 1.80 +/- 0.30 (stat) +0.21 -0.15 (syst) +0.20 -0.14 (theory) times the value predicted by the Standard Model. Two energy calibrations of electromagnetic particles are presented, a simpler method already used by all the ATLAS analyses and a new method based on a multivariate technique. Single particle Monte Carlo simulations have been used for the optimization. Electrons, unconverted photons and converted photons have been optimized separately. To improve the calibration of converted photons a dedicated correction has been developed. The MVA calibration was developed to introduce more input variables. The improvement is visible in all the energy ranges and in all the pseudorapidity regions and for all the particle hypotheses. The improvement on the Higgs invariant mass resolution in the diphoton channel is about 4%
Addressing R&D investment decisions: a critical review and comparison of R&D project selection methods
No full textA large number of methodologies for R&D project selection have been developed and reported in literature over the last few decades, and it has become a very popular research topic since the 1960s. The aim of this paper is to classify and characterize the determining aspects behind the research and development project selection process. The authors have identified the key issues for the comparison of the existing techniques used to evaluate alternative projects and portfolios of R&D projects. This paper discusses the strengths, weaknesses, limitations and practicality of the methods with the aim of providing a set of guidelines to help managers to choose the project evaluation and selection model appropriate for their specific problems. It concludes with the suggestion about some integrated models (hybrid approach) and the latest solutions which could fill the gaps in existing selection methods
FIG. 1 in Biology of a tropical intertidal population of Cerithium atratum (Born, 1778) (Mollusca, Gastropoda)
No full textFIG. 1. Cerithium atratum. Schematic shell indicating the measurements taken for growth and morphometric analyses.Published as part of Denadai, M. R., Amaral, A. C. Z. & Turra, A., 2004, Biology of a tropical intertidal population of Cerithium atratum (Born, 1778) (Mollusca, Gastropoda), pp. 1695-1710 in Journal of Natural History 38 (13) on page 1698, DOI: 10.1080/0022293031000156330, http://zenodo.org/record/467598
Along- and across-shore components of the spatial distribution of the clam Tivela mactroides (Born, 1778) (Bivalvia, Veneridae)
No full textDenadai, Márcia R., Amaral, A. Cecília Z., Turra, Alexander (2005): Along- and across-shore components of the spatial distribution of the clam Tivela mactroides (Born, 1778) (Bivalvia, Veneridae). Journal of Natural History 39 (36): 3275-3295, DOI: 10.1080/00222930500126156, URL: http://dx.doi.org/10.1080/0022293050012615
Spatial distribution of the ghost crab Ocypode quadrata in low-energy tide-dominated sandy beaches
No full textTurra, A., Gonçalves, M. A. O., Denadai, M. R. (2005): Spatial distribution of the ghost crab Ocypode quadrata in low-energy tide-dominated sandy beaches. Journal of Natural History 39 (23): 2163-2177, DOI: 10.1080/00222930500060165, URL: http://dx.doi.org/10.1080/0022293050006016
Linee evolutive del Risk Management; approcci, metodi e ambiti applicativi
No full textLa crescente complessità e dinamicità
dei contesti in cui operano le
i m p rese ha portato nella più re c e nte
fase di sviluppo della società
m o d e rna ad un inesorabile incremento
del livello di rischio in tutte
le aree di gestione ed in tutte le attività
aziendali. Per questo motivo si
è aff e rmata sempre più la disciplina
e la pratica del Risk Management
(RM) in settori di attività ed in contesti
anche molto diversificati: dal
n u c l e a re, alla supply chain, al contesto
sanitario, ecc. Il percorso evolutivo
del RM è pertanto avvenuto
lungo direttrici di sviluppo distinte
(e quasi indipendenti), che hanno
a dottato prospettive specifiche e, supp
o r t a t e da matrici culturali anche
assai diff e renti, hanno dato luogo
ad approcci e metodi particolari.
In questo articolo si intende forn i re
un contributo all’identificazione e
caratterizzazione di tali dire t t r i c i
di sviluppo, così come emergono da
un’ampia analisi della letteratura
accademica e manageriale, condotta
nelle banche dati economicoaziendalistiche,
ingegneristiche e
mediche, con riferimento agli ultimi
quarant’anni.
Tale tassonomia può costituire un
riferimento integrato alla disciplina
del RM; può consentire a chi si
a p p roccia all’argomento di individ
u a re la direttrice di sviluppo più
consona al proprio contesto applicativo,
ed infine potrebbe favorire
una sorta di “fertilizzazione incrociata”
tra esperti di specifici filoni
del RM
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
Identification and characterization of potato protease inhibitors able to inhibit pathogenicity and growth of Botrytis cinerea
No full text- …
