86,927 research outputs found
Quality Improvement in Hot Dip Galvanizing Line through hybrid Case-Based Reasoning System
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A user-centred framework for explainable artificial intelligence in human-robot interaction
No full textEffectiveness of Low-Level Laser Therapy during Tooth Movement: A Randomized Clinical Trial
No full textBiocontrol of Fusarium head blight: interactions between Trichoderma and mycotoxigenic Fusarium
No full textFusarium head blight (FHB) is a re-emerging wheat disease that causes extensive damage through direct losses in yield and quality due to the presence of damaged Fusarium kernels and their associated mycotoxins such as the trichothecene deoxynivalenol (DON). Biological control, including the treatment of crop residues with antagonists, in order to reduce pathogen inoculum of FHB, holds considerable promise. Ten Trichoderma isolates, previously selected for their ability to grow in the presence of DON, were preliminarily investigated as potential antagonists against Fusarium culmorum and F. graminearum mycotoxigenic strains in plate confrontation assays. The three Trichoderma isolates showing antibiosis and mycoparasitism were evaluated for their capacity to inhibit DON production by F graminearum and F culmorum on two natural substrates. The expression of some chitinase-encoding genes by the two best resulting Trichoderma strains, during interaction with F culmorum and F. graminearum, was monitored. All investigated genes from chitinase subgroups A, B and the new subgroup C responded to mycoparasitic conditions and were upregulated before contact and/or when in contact with the host. T. gamsil 6085, the best antagonist, was finally used in a competition test against F. culmorum and F. graminearum on natural substrates, using a qPCR approach to evaluate its effect on the pathogen's growth and DON production in haulms and rice. This test confirmed the ability of T. gamsil 6085 to antagonize the pathogens on rice. On wheat haulms, an extreme oligotrophic environment, T. gamsil 6085 seemed to develop very poorly and the growth of both the pathogens was unaffected by the presence of the antagonist
Toward Robots' Behavioral Transparency of Temporal Difference Reinforcement Learning with a Human Teacher
No full textThe high request for autonomous human-robot interaction (HRI), combined with the potential of machine learning (ML) techniques, allow us to deploy ML mechanisms in robot control. However, the use of ML can make robots' behavior unclear to the observer during the learning phase. Recently, transparency in HRI has been investigated to make such interactions more comprehensible. In this work, we propose a model to improve the transparency during reinforcement learning (RL) tasks for HRI scenarios: the model supports transparency by having the robot show nonverbal emotional-behavioral cues. Our model considered human feedback as the reward of the RL algorithm and it presents emotional-behavioral responses based on the progress of the robot learning. The model is managed only by the temporal-difference error. We tested the architecture in a teaching scenario with the iCub humanoid robot. The results highlight that when the robot expresses its emotional-behavioral response, the human teacher is able to understand its learning process better. Furthermore, people prefer to interact with an expressive robot as compared to a mechanical one. Movement-based signals proved to be more effective in revealing the internal state of the robot than facial expressions. In particular, gaze movements were effective in showing the robot's next intentions. In contrast, communicating uncertainty through robot movements sometimes led to action misinterpretation, highlighting the importance of balancing transparency and the legibility of the robot goal. We also found a reliable temporal window in which to register teachers' feedback that can be used by the robot as a reward
Canina bianca
No full textLa prima citazione di 'Gagnaccia bianca' è recente: è stata segnalata per la prima volta da Basso (1992) che l'ha identificata in Garfagnana.
Il successivo progetto di Recupero e Caratterizzazione del germoplasma viticolo della Garfagana (respnsabile scientifico Prof. Claudio D'Onofrio, Università di Pisa) ha permesso di verificare la 'Canina bianca' e 'Cagnaccia bianca' diffusi in Garfagnana sono sinonimi, come pure la 'Petognana bianca' diffusa nel medesimo areale (D'Onofrio et al., 2015).
Moreover, this variety do not match to the 'Canina bianca' identified in Sicilia e non è un sinonimo della 'Vernaccia di Oristano' come talvolta suggerito (D'Onofrio et al., 2015)
Lombardesca
No full textLa prima citazione della 'Lombardesca nera' è di Basso (1992) che l'ha identificata in Garfagnana (Lucca), mentre il sinonimo 'Corvara nera' è stato accertato più recentemente sempre in garfagnana (D'Onofrio et a., 2015).La Corvara/Lombardesca nera non corrisponde a nessuno dei genotipi caricati nei vari Vitis database e appare essere presente esclusivamente in Garfagnana (D'Onofrio et al., 2015).L’uva è dolce e ha elevata acidità totale. Appare essere un vitigno di 3° epoca
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