122,065 research outputs found
n-Compartment mathematical model for transient evaluation of fluid curtains in mitigating chlorine releases
No full textA simple n-compartment mathematical model is developed to study the effectiveness of fluid curtains and transient behaviour in mitigating the effects of an accidental chlorine release. The model is obtained considering chemical and physical absorption effectiveness of the toxic cloud by a reacting liquid curtain. The characteristics of the curtain and the evolution were deeply studied by means of replicated wind tunnel experimental runs, according to different operating parameters. An analytical solution of the model is presented. A fairly good agreement was verified between the model predictions and the original experimental results here presented
Autoimmune paraneoplastic cerebellar degeneration: immunohistological localization of antibody-binding sites
No full textSera from 3 patients with breast or ovarian tumors and paraneoplastic cerebellar degeneration (PCD) contained anti-Purkinje cell antibodies (PCAbs) which also bind to other neurons on frozen sections of adult rodent brain. PCAbs tested on new-born rodent (rabbit, rat, mouse) brain tissue detected only oligodendrocyte-like cells (ODLC) in the white matter and allowed us to speculate on the nature of the antigenic structure in the neuronal cytoplasm. All these PCAbs appear histochemically identical and recognize antigens which belong to so-called "Yo" proteins. © 1994
Riabilitazione protesica totale in paziente allergico al metil-metacrilato: caso clinico.
No full textA Multi-Language Comparison of Influences on Author Verification using Character N-Grams
No full textWe create a new multi-language corpus for author verification based on Wikipedia talkpages, and evaluate the influence that differences in topic and time have on character n-gram author profiles. Topic alignment between two texts is found to increase author verification precision, and an authors writing style is found to change over time, but not more significantly after 3 years than after 1 year.Information ArchitectureWISElectrical Engineering, Mathematics and Computer Scienc
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
L'occlusione nelle riabilitazioni protesiche implantologiche: revisione della letteratura e concetti attuali
No full textInserendo degli impianti all'interno dell'osso mascellare, si crea un sistema biologico impianto-osso, che reagisce alle forze occlusali in modo differente da come reagisce un dente naturale sul quale è ancora presente il legamento parodontale. Pertanto, una riabilitazione implantoprotesica va progettata in modo che essa non comporti un sovraccarico occlusale, in quanto quest'ultimo è spesso una delle cause riconosciute di perdita di osso periimplantare, di fallimento dell'impianto e/o del complesso impianto-protesi. Il sovraccarico occlusale generato da progetti occlusali incongrui, oppure da cantilever estesi. o da interferenze nei movimenti eccentrici della mandibola, o parafunzioni, può influire negativamente sulla longevità dell'impianto o della sua componentistica. Pertanto, sia in fase progettuale, che nel corso delle fasi operative, è fondamentale, ai fini del successo riabilitativo, creare una distribuzione ottimale del carico e gestire l'occlusione nelle situazioni complesse. A tal fine, a supporto del clinico, è fondamentale l'utilizzo dell'elettromiografia dedicata allo studio dei parametri funzionali neuromuscolari dell'apparato stomatognatico. Scopo del presente lavoro è quello di analizzare i vari aspetti dell'occlusione riferita alle riabilitazioni protesiche su impianti ed il ruolo dell'elettromiografia quale esame strumentale fondamentale per stabilire la presenza o meno di un equilbrio neuromuscolare dei muscoli masticatori
The vanishing author in computer-generated works: a critical analysis of recent Australian case law
No full textAbstract
The use of software is ubiquitous in the creation of many copyright works, yet the requirement in copyright law that every work have a human author who engages in independent intellectual effort means that its use may prevent copyright subsistence. Several recent Australian cases have refocused attention on authorship as an essential criterion of copyright subsistence, and these cases suggest that much computer-produced output may be authorless and thus lack copyright protection. This article, the first in a two-part series, analyses how each case deals with the question of authorship of computer-produced works and why the use of software diminishes copyright protection for a significant number of computer-generated works. The article critiques the application of conventional notions of human authorship developed in the pre-computer age to modern productions and suggests alternative approaches to authorship that satisfy both the major objectives of copyright policy and the need to adapt to the computer age. The article argues that, without a broader judicial approach to authorship of computer-generated works, Parliament must remedy the lacuna in protection for these ‘authorless’ works. Possible solutions for reform are suggested. In a forthcoming article, the author comprehensively examines those reform proposals
Diffusive author(s), cohesive author: Analysis of S/N (1994)
No full textThis study indicates the ways in which various aspects of the author(s) are brought forth in Dumb type’s performance art, the S/N production. Previous research has suggested a non-hierarchical organization of Dumb type and the absence of a “privileged author” in Dumb type’s collaborative work, S/N. However, the results that I have investigated from member’s interviews on the creative process of S/N along with my analysis of the recorded images of S/N, indicate a different aspect of the author(s). First, S/N was created through, so to speak, the collective ideas of the members of Dumb type. Further, S/N has at least nine quotations from previous performances, installations, and printed writings, besides the work-in-progress technique. Explicating one of the “author functions” as given by Michel Foucault, each text has plural subjects of the author. However, it has been revealed from members’ interviews that Teiji Furuhashi had a decision-making role in selecting the members’ ideas within the performance. Since then, S/N has had plural subjects of creation; however, Furuhashi is one of the subjects of creation along with the “privileged author.” S/N has plural authors (diffusive authors) yet at the same time, it has a “privileged author,” Teiji Furuhashi (cohesive author)
Electrical Correlation of Double-Diffused Metal–Oxide–Semiconductor Transistors Exposed to Gamma Photons, Protons, and Hot Carriers
No full textDouble-diffused metaloxidesemiconductor n-channel power transistor devices were subjected to a high electric-field stress, gamma photons 60Co, and 10-MeV proton radiation, and were comparatively analyzed. The direct-current currentvoltage and high-frequency capacitancevoltage techniques were used to characterize the two different regions under the gate oxide in this kind of devices. The SiSiO2 interfaces at the channel side and at the drain side are characterized after thermal annealing. The correlation of the interface states with the trapped charge is a good quantitative tool to compare the effects from different degradation mechanisms. It is shown that, under given conditions, each kind of stress exhibits its own signature in the interface states versus the oxide charge plot.Fil: Palumbo, Félix Roberto Mario. Comisión Nacional de Energía Atómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Faigon, Adrián Néstor. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires; ArgentinaFil: Curro, Giuseppe. No especifíca
Radiofrequency-Assisted Liver Resection in Patients With Hepatocellular Carcinoma and Cirrhosis: Preliminary Results
No full text- …
