Search results for " Rob"
showing 10 items of 689 documents
Synthesizing on a reconfigurable chip an autonomous robot image processing system
2003
This paper deals with the implementation, in a high density reconfigurable device, of an entire log-polar image processing system. The log-polar vision reduces the amount of data to be stored and processed, simplifying several vision algorithms and making it possible the implementation of a complete processing system on a single chip. This image processing system is specially appropriated for autonomous robotic navigation, since these platforms have typically power consumption, size and weight restrictions. Furthermore, the image processing algorithms involved are time consuming and many times they have also real-time restrictions. A reconfigurable approach on a single chip combines hardwar…
Ciona robusta hemocyte populational dynamics and PO-dependent cytotoxic activity
2020
Hemocyte populations from the ascidian Ciona robusta, separated through a Percoll discontinuous density gradient, are further characterized by May-Grünwald-Giemsa staining and a cytochemical reaction for phenoloxidase. Variability in cell density, acidophilic property and phenoloxidase activity suggest multiple hemocyte type populations, cell lineages and morphotypes that may be involved in distinct cellular responses. Therefore, unilocular refractile granulocytes, typical of this ascidian species, enriched in a fraction separated from the hemolymph show in vitro phenoloxidase-dependent cytotoxic activity against mammalian erythrocytes and a tumor cell lineage, in addition the properties li…
Representaciones de la infancia en Cuerda de presas: trazos de identidad
2014
Los sucesos de la guerra civil española y de la inmediata posguerra constituyen de un tiempo a esta parte un foco de interés para las artes, especialmente para la literatura. El conjunto de relatos allí enmarcados se convierte en un fenómeno de interés para la crítica especializada que, desde distintas perspectivas vertebradas principalmente en torno a los debates acerca de la memoria, cuestiona y aborda la representación de estos acontecimientos históricos, herida aún abierta en la sociedad española. Una forma discursiva que circula todavía por los márgenes es la historieta, y Cuerda de presas es un libro de historietas que reúne once relatos sobre la guerra civil española. En las siguient…
Robots that look like humans: A brief look into humanoid robotics
2018
This article provides a brief overview of the technology of humanoid robots. First, historical development and hardware progress are presented mainly on human-size full-body biped humanoid robots, together with progress in pattern generation of biped locomotion. Then, «whole-body motion» – coordinating leg and arm movements to fully leverage humanoids’ high degrees of freedom – is presented, followed by its applications in fields such as device evaluation and large-scale assembly. Upper-body humanoids with a mobile base, which are mainly utilized for research on human-robot interaction and cognitive robotics, are also introduced before addressing current issues and perspectives.
CAPTCHA un tās alternatīvas Tjūringa testa realizācijai tīmekļa lapās
2016
Tehnoloģiju attīstības rezultātā liela daļa no tīmekļa lietotāju skaita ir roboti. To spējas pieaug un veiktās darbības vairumā gadījumu var atstāt negatīvu ietekmi, tāpēc aizsardzības nolūkos tiek veidots arvien sarežģītāks CAPTCHA mehānisms. Šādas tendences rezultātā tiek zaudēts viens no reversā Tjuringa testa pamatnosacījumiem– tam jābūt cilvēkam viegli risināmam. Maģistra darba “CAPTCHA un tās alternatīvas Tjūringa testa realizācijai tīmekļa lapās” ietvaros tika apzināti CAPTCHA veidi, šo drošības uzdevumu risināšanas mehānismi un noskaidroti robotu darbības principi. Veikta anketēšana un iegūto rezultātu salīdzināšana ar robotu sniegumu. Tika apkopoti arī iespējamie alternatīvie risin…
The contributions of Hilbert and Dehn to non-Archimedean geometries and their impact on the Italian school
2007
In this paper we investigate the contribution of Dehn to the development of non- Archimedean geometries. We will see that it is possible to construct some models of non- Archimedean geometries to prove the independence of the continuity axiom and we will study the interrelations between Archimede’s axiom and Legendre‘s theorems. Some of these interrelations were studied also by Bonola who was one of the very few italian scholars to really appreciate Dehn’s work. We will see that, if Archimede’s axiom does not hold, the hypothesis on the existence and the number of parallel lines through a point is not related to the hypothesis on the sum of the inner angles a triangle. Hilbert himself retur…
Some models of geometries after Hilbert’s Grundlagen
2010
Sono descritti alcuni dei principali modelli di geometrie non desarguesiane e non archimedee Abstract: We investigate the contribution of Max Dehn to the development of non-Archimedean geometries and the contribution of his student Ruth Moufang to the development of non-Desarguesian geometries.
Defense versus Opulence? An Appraisal of the Malthus-Ricardo 1815 Controversy on the Corn Laws
2015
This article proposes a rational reconstruction of the arguments of Malthus and Ricardo in their 1815 essays, Grounds of an Opinion and An Essay on Profits, whereby a policy of free corn trade was repudiated and endorsed, respectively. Malthus envisaged defense and (trade-induced) opulence as two mutually alternative options and, if required to make a choice, he had no hesitation in choosing the former. By contrast, Ricardo excluded any such trade-off, arguing that even in the case of war or poor domestic harvest, foreign agricultural countries would be seriously damaged if they opted for restrictions on their corn exports to Great Britain.
Le trame dell’ambizione nell’opera di Federico De Roberto
2013
Il saggio esamina il rilievo che l'ambizione assume nei romanzi di De Roberto che non solo è un tema ricorrente del romanzo ottocentesco, ma qui acquista il valore di un elemento costruttivo dell’intreccio. In De Roberto l'ambizione si presenta come parte o effetto del più ampio tema dell’egoismo che, riflettendo una condizione storica precisa, restituisce il senso di una modernità dominata dall’individualismo e dalla dialettica darwiniana della lotta per la conservazione della specie.
Cambio rotta con il poliziesco
2010
About “Spasimo” by Federico De Roberto.