1,721,030 research outputs found
Ci siamo resi conto che la vita va vissuta insieme, non accumulata da soli?
No full textIl mito occidentale che l’uomo è padrone della natura è crollato nel 2020 di fronte a un virus , con ripercussioni su molte attività delle persone. I grandi problemi ci sono sempre stati e sarebbe assurdo pensare che non ci saranno più, ma ciò che è successo indica che è necessario prepararsi strutturalmente alle emergenze, che l’economia è sicuramente importante ma non può essere il driver incondizionato di tutte le decisioni dell’organizzazione umana, che una conoscenza troppo specializzata su singoli aspetti rende spesso incapaci di effettuare il legame tra le parti e il quadro complessiv
Antropocene: l’assenza di pensiero strategico
No full textl riscaldamento globale riguarda tutta la comunità mondiale, quest’anno tutti gli Stati si sono riuniti a Glasgow (COP26) per affrontare il problema che è molto grave per tutti e soprattutto per le nuove generazioni. Spesso è utilizzato il termine geologico Antropocene per indicare l’impatto dell’azione umana sulla Terra. È necessario capire come si può inquadrare questa sfida per il genere umano dal punto di vista etico; se il termine Antropocene sia una modalità di comunicazione ad effetto o sia scientificamente fondato; come si sia giunti a doversi porre questa domanda; quali scenari si pongono davanti alla specie umana
Mosaici di produzione alessandrina in Italia: il contributo delle analisi archeometriche
No full textMosaici di produzione alessandrina in Italia: il contributo delle analisi archeometriche
No full textComplementary resources, appropriability and vertical interfirm relations in the Italian movie industry
No full textResource-based view research plays a prominent role in strategic management studies. In this paper we investigate the relativistic interpretation of the "scarcity" concept, the appropriability of complementary resources, the measurability of the contribution that a specific resource brings to the overall value of the firm. The theoretical issues have been made context specific trying to show (a) how a not-scarce complementary resource like movie theatres can help build value for the distributor, mainly through the creation of reputation for the subsequent TV broadcasting; (b) that this resource can be appropriated from different companies; (c) that companies can develop different kinds of interfirm relationships in order to control complementary resources; (d) that reliable and valid parameters can be provided to measure the value of resources and the related degree of control from the distributors. Supporting empirical evidence is provided and implications for managing complementary resources are discussed. © 1998 Kluwer Academic Publishers
Increasing the autonomy of planetary exploration robots
No full textMobile robots designed for planetary exploration are essential for advancing our
understanding of celestial bodies, enabling scientists to collect valuable data and
explore areas beyond the reach of human astronauts. These robots are equipped
with advanced sensors, cameras, scientific instruments, and communication systems,
allowing them to navigate autonomously, analyze the environment, and transmit
data back to Earth. This thesis focuses on increasing the degree of autonomy of
planetary exploration robots. The research objectives are divided into three main
topics:
• Terrain Awareness: This research leverages machine learning algorithms
to classify terrain types using proprioceptive data modulated by roverenvironment interactions. By selecting informative subsets of this data,
the aim is to improve terrain classification for both generalization and extrapolation, crucial for long-range navigation and safety
• Innovative Suspension Systems: a novel o↵-road tracked robot is introduced
in this study, and its suspension system is evaluated through analytical and
multibody models. By analyzing its performance on challenging terrains this
research contributes to improving the design of robotic systems for planetary
exploration.
• Path Planning: This work delves into reactive computing path planning,
focusing on the use of Harmonic Artificial Potential Fields (HAPF). The
aim is to enhance local and global planning while addressing typical reactive
computing limitations, such as local minima and sub-optimality.
By addressing these research objectives, this thesis seeks to advance the capabilities of mobile robots for planetary exploration, contributing to safer and more
ecient exploration of celestial bodies, such as Mars and the Moon
Glass coloring and recycling in late antiquity: A new case study from Aquileia (Italy)
No full textAquileia is widely cited as a major Roman glassworking center, but this assumption is based on scarce archaeological evidence and supported by only a few indicators of production, mainly found out of archaeological context. This article discusses problems relating to the glass industry in Aquileia, presenting a new group of indicators of production, excavated in 2014, that includes fragments of a melting chamber, cullet, mosaic tesserae, and one glassworking tool. This new discovery, interpreted as a fourth-century context of glass coloring and recycling, is the first evidence of colored glass working ever investigated stratigraphically at Aquileia, and it adds new data to the complex picture of the structure of the Late Antique glass industry in the Roman town. The authors analyzed 15 glass samples by ESEM-EDS, demonstrating that glasses were recycled both by mixing mosaic tesserae with colorless glass and by re-melting or softening mosaic tesserae
Editorial: Physiology of invertebrate sensing in extreme conditions and hostile environment
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