1,721,133 research outputs found
Verbovisuali : ricerche di confine fra linguaggio verbale e arte visiva
No full textIl volume indaga i complessi rapporti tra linguaggio verbale e arte visiva, tra parola e immagine nella seconda metà del Novecento. Più nel dettaglio, il volume inizia con l'analisi di tre aree di ricerca a confronto (poesia concreta, poesia visiva e arte concettuale) per proseguire con l'analisi dei movimenti artistici (Lettrismo e Internazionale situazionista) e con l'indagine sul rapporto tra parola e comportamento in Fluxus. Seguono i capitoli The whole word: l'uso della parola in quattro recenti interventi di arte pubblica e "Tutto ciò a cui rinuncio diventa linguaggio...". Parola e immagine nelle ricerche attuali. Chiude il volume l'appendice dedicata alla biblioteca dell'Archivio di Nuova Scrittura di Paolo Della Grazia (attualmente presso il Mart di Rovereto), al fondo archivistico dell'Archivio di Nuova Scrittura di Paolo Della Grazia e alle opere e libri d'artista dalla collezione ANS del Mart
Nuove scritture : ricerche verbovisuali delle seconde avanguardie tra attualità e tradizione
No full textAnalyzing late Ventricular Potential using an improved alignment technique for signal averaging to increase detection reliability
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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
Low energy atmospheric muon neutrinos in MACRO
No full textWe present the measurement of two event samples induced by atmospheric v(mu) of average energy (E) over bar(v) similar to 4 GeV. In the first sample, a neutrino interacts inside the MACRO detector producing an upward-going muon leaving the apparatus. The ratio of the number of observed to expected events is 0.57 +/- 0.05(stat) +/- 0.06(syst) +/- 0.14(theor) with an angular distribution similar to that expected from the Bartol atmospheric neutrino flux. The second is a mixed sample of internally produced downward-going muons and externally produced upward-going muons stopping inside the detector. These two subsamples are selected by topological criteria; the lack of timing information makes it impossible to distinguish stopping from downgoing muons. The ratio of the number of observed to expected events is 0.71 +/- 0.05(stat) +/- 0.07(syst) +/- 0.18(theor). The observed deficits in each subsample is in agreement with neutrino oscillations, although the significance is reduced by the large theoretical errors. However, the ratio of the two samples causes a large cancellation of theoretical and of some systematic errors. With the ratio, we rule out the no-oscillation hypothesis at 95% c.l. Furthermore, the ratio tests the pathlength dependence of possible oscillations. The data of both samples and their ratio favor maximal mixing and Delta m(2) similar to 10(-3)-10(-2) eV(2). These parameters are in agreement with our results from upward throughgoing muons, induced by v(mu) of much higher energies. (C) 2000 Elsevier Science B.V. All rights reserved
Muon Astronomy With the Macro Detector
No full textWe have analyzed a sample of 1.8 x 10(6) muons with E(mu) greater-than-or-similar-to 1.3 TeV collected by the first and second supermodules of the MACRO detector at Gran Sasso during the period 1989 February to 1991 February. We have searched for an excess of muons of celestial origin over cosmic-ray background. Our search for steady sources in solid angle bins of DELTAOMEGA almost-equal-to 3.0-degrees x 3.0-degrees in the declination range -5-degrees less-than-or-equal-to delta less-than-or-equal-to 90-degrees was negative; the upper limit with 95% C.L. to the muon flux at mid-latitudes (delta approximately 45-degrees) is J(mu)steady less-than-or-similar-to 2 x 10(-12) cm-2 s-1. In addition, we have searched for muon excesses modulated by the orbital period of selected X-ray sources, including Cyg X-3, Cyg X-1, Her X-1, 4U 0115+63, and 4U 1907+09. For Cyg X-3 we obtained an upper limit with 95% C.L. of J(mu)mod less-than-or-equal-to 8.8 x 10(-13) cm-2 s-1. Further, we have no evidence of any bursting activity from Cyg X-3, during our search period, which includes the radio outburst of 1991 January
Time course of swelling-induced action potential variations and volume in guinea-pig ventricular myocytes
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