1,354,562 research outputs found
Caracterización del desarrollo embrionario de Triatoma infestans (vinchuca) y su relación con la susceptibilidad a insecticidas organofosforados
No full textFil: Picollo de Villar, María Inés. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina
Caracterización del desarrollo embrionario de Triatoma infestans (vinchuca) y su relación con la susceptibilidad a insecticidas organofosforados
No full textFil: Picollo de Villar, María Inés. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina
Piccolo - Its Historical Development, Construction, and Use in Solo, Chamber and Orchestral Music
No full textThe bachelor's thesis "Picollo. Its Historical Development, Construction and Use in Solo, Chamber and Orchestral Music." is concerned with a picollo, an instrument related to the flute. The first chapter introduces the history of both the flute and the picollo to the reader. It also includes the description of constructional changes of the instruments and their functions from the beginnings until the present day.
In the second chapter, the author focused only on the picollo, its construction and the materials it may be made of (metal, wood). The author also mentioned the significant international producers of picollos and attention was also paid to the maintenance of the instrument. The last chapter examines the possibilities of picollo's use as a solo instrument or as a member of a chamber, symphonic or operatic orchestra
La misura del colore per il monitoraggio di interventi di pulitura e consolidamento su dipinti: un caso studio
No full textTruth in a Logic of Formal Inconsistency: How classical can it get?
No full text10.1093/jigpal/jzy059Logic Journal of the IGPL285771-80
Is deflationism compatible with compositional and tarskian truth theories?
No full textWhat requirements must deflationary formal theories of truth satisfy? This chapter argues against the widely accepted view that compositional and Tarskian theories of truth are substantial or otherwise unacceptable to deflationists. First, two purposes that a formal truth theory can serve are distinguished: one descriptive, the other logical (i.e., to characterise the correctness of inferences involving ‘true’). The chapter argues that the most compelling arguments for the incompatibility of compositional and Tarskian theories concern descriptive theories only.
Second, two requirements that any deflationist truth theory intended to serve a logical purpose must satisfy are put forward. These requirements, it is argued, suggest that (i) many well-known compositional and Tarskian theories are acceptable from a deflationist standpoint (including CT); (ii) certain other popular theories of truth (including KF and FS) are not similarly acceptable; (iii) there are no conclusive reasons to impose a conservativeness requirement on deflationary theories of truth
Non-invasive differentiation between natural and synthetic ultramarine blue pigments by means of 250-900 nm FORS analysis
No full textA totally non-invasive procedure has been developed for differentiation of natural and synthetic
ultramarine blue pigments on the basis of collection of UV-visible spectra in diffuse reflectance mode,
followed by a chemometric treatment of the data using unsupervised pattern recognition methods. The
main spectral features of natural and synthetic paint samples, i.e. reflection maxima, inflection points
and reflection minima, could not be useful enough in the differentiation process; a threshold of 455 nm
in the comparison of reflectance maxima has been observed, with synthetic samples peaking lower than
this value and natural samples peaking higher, but it was not considered efficient in the differentiation,
according to the fact that reflection maxima could be subjected to a bathochromic shift as a
consequence of the addition of white pigments to blue paints. Chemometric analysis was therefore
used in order to exploit information contained in the whole spectrum. To obtain an efficient
classification, a proper data transformation was performed on the spectral data, using Z-score
standardised variables. Principal Component Analysis (PCA) and Hierarchical Cluster Analysis (HCA) were
the unsupervised pattern recognition methods used on the spectral data. Chemometric treatment was
firstly applied to analysis of standard ultramarine blue paints and powder pigments and showed a good
differentiation power, making it possible to distinguish between paints and raw lapis lazuli items and,
more interestingly, between natural and synthetic ultramarine blue paints. Afterwards, PCA and HCA
were applied to the analysis of blue paints on miniature painting artworks, again succeeding in the
differentiation. This procedure could be used to develop a simple and totally non-invasive method for
authenticating painted artworks
Considerations on light and colour for TV broadcasting
No full textIn a recent teaching experience within the Master in Lighting Design & LED Technology of Politecnico di Milano, the students had the opportunity to visit the production studios of Mediaset and to attend a lesson on the use of light in television spaces. The subject is undoubtedly fascinating, having its roots in the art of illumination of classical theatre, up to new approaches and technologies, such as automated mobile lights and LED light sources.
The approach to lighting for the TV differs (albeit with some significant overlap) from the more traditional architectural lighting; the organization of the workgroup, the design processes and the tools used, the objectives to be expressed with the light and the strategies to achieve them, the available technologies and above all, the colour control of the lighting envelope.
Lighting for television spaces (but also for movie industry) is based on the assumption that the final observer is not the human being as for the architectural sector, but the camera. The digital eye of the camera does not have the internal dynamics of the human visual system; it does not have the same automatic adaptation and correction mechanisms, although technology allows numerous operations to control the parameters related to colour. Based on this assumption, the indices commonly used for the human observer such as the CRI or TM-30 are also not adequate for an evaluation of the sources (or lighting systems) for television and cinema applications.
The purpose of this contribution is not to cover all the techniques for the lighting of television studios (extensive topic) entirely, but to collect a right amount of information relating to the operations on light and its chromaticities, such as correction and indices used for the colour temperature or the limits and possibilities given by the new technologies
Esperienze di gestione, monitoraggio e razionalizzazione di consumi di energia elettrica nell'Ateneo Genovese
No full text- …
