1,721,544 research outputs found
H. E. Gatti, Albaceas
No full textH. E. Gatti, Albaceas. In: Revue internationale de droit comparé. Vol. 10 N°1, Janvier-mars 1958. pp. 202-204
H. E. Gatti, Albaceas
No full textH. E. Gatti, Albaceas. In: Revue internationale de droit comparé. Vol. 10 N°1, Janvier-mars 1958. pp. 202-204
H. E. Gatti, Reconociemento expreso de hijos naturales
No full textH. E. Gatti, Reconociemento expreso de hijos naturales. In: Revue internationale de droit comparé. Vol. 7 N°1, Janvier-mars 1955. pp. 237-238
H. E. Gatti, Reconociemento expreso de hijos naturales
No full textH. E. Gatti, Reconociemento expreso de hijos naturales. In: Revue internationale de droit comparé. Vol. 7 N°1, Janvier-mars 1955. pp. 237-238
Minimum-noise centroid-finding filters in the presence of coloured noise and time-domain constraints
No full textOptimization of time-of-flight measurements is often made more challenging by the aleatoriety of the observed detector current signal. In fact the shape of the current signal seen at the collecting electrode may vary depending upon different statistical physical effects, such as thermal diffusion of the charge cloud, angled trajectories of the ionizing particles, etc. As a result the risetime of the induced signal is slowed down and the current waveform shape tends to be Gaussian rather than delta-like. In these cases the pulse centroid rather than a threshold height should be used as a reference point for timing. In this paper we show that the minimum-noise centroid-finding filter for timing measurements, may be derived by means of assessed optimization techniques which permit to impose arbitrary time-domain constraints in the optimal-filter impulse response. Namely the centroid-finding peculiarity is obtained by constraining the impulse response to show a "constant-slope crossover" as large as the maximum signal width is. Such a "constant-slope crossover" may be seen as the counterpart of the well known "flat top" used for ballistic-deficit rejection in pulse-height measurements. In addition the finite-width constraint may be used in order to diminish the pileup effects in high-rate operation
Elaborazione dei segnali di interesse biomedico
No full textTra le innumerevoli applicazioni che le tecniche elettroniche di acquisizione ed elaborazione dei segnali incontrano in medicina e in fisiologia, si discutono qui alcuni esempi particolarmente adatti ad essere generalizzati e a fornire quindi metodologie utilizzabili in più situazioni differenti. Con riferimento alle mappe di potenziale cardiaco, si discute un sistema generale di acquisizione dati, trattando i problemi di aliasing, di filtraggio analogico e numerico, di conversione analogico numerica, di compressione dell’informazione.
Nel settore dei segnali strutturali si analizza in dettaglio il problema del riconoscimento delle spikes nervose. Si accenna anche all’impiego delle tecniche ultrasonore in ecografia
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
Indagini parassitologiche su cani e gatti in canile a Cernavod\u4d1(Romania)
No full textLa tesi tratta di ricerche parassitologiche su cani e gatti in canile a Cernavoda in Romania, Paese afflitto dal grande problema del randagismo, volte all'evidenziazione di leishmaniosi, demodicosi, dermatofitosi, Malassezia auricolare, parassitosi intestinali e identificazione di specie in causa nelle pulicosi e nelle infestazioni da zecche. Tali parassitosi necessitano di grande attenzione in quanto oggetto di possibili zoonosi
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