90,130 research outputs found
Gladiopycnodontidae Taverne & Capasso 2013
No full textFamily Gladiopycnodontidae fam. nov. urn:lsid:zoobank.org:act: 66 F 04581 - AFC 7-47 B 5- A 6 E 8-7 FB 0935ADD81 Diagnosis Small Coccodontoidea superfam. nov.. Snout elongated and forming a rostrum outpacing anteriorly the lower jaw level. Anterior tip of the rostrum formed by the long and broad prefrontal only. Premaxilla long, broad, toothless and sutured all along its dorsal margin with the prefrontal. Pectoral fin lost and replaced by a strong spine articulated with the cleithrum. Body entirely covered with small flake-like scales or with scutes.Published as part of Taverne, Louis & Capasso, Luigi, 2013, Gladiopycnodontidae, a new family of pycnodontiform fishes from the Late Cretaceous of Lebanon, with the description of three genera, pp. 1-30 in European Journal of Taxonomy 57 on page 4, DOI: 10.5852/ejt.2013.57, http://zenodo.org/record/382296
The representation of segmental information: an fMRI investigation of the consonant-vowel distinction
No full textRecent studies suggest that consonants and vowels are represented
separately in cognitive/neural space. Much of the evidence
comes from research on dysgraphia (for review, see Miceli & Capasso,
submitted). In the first place, letter substitution errors preserve
the consonant/vowel (CV) status of the target (e.g., cinema fi cirema
or cinoma, but not cintma). Second, there are reports of selective
impairment for consonants or vowels. Additional evidence comes
from disorders of phonology, demonstrating the dissociability between
consonants and vowels (Caramazza, Chialant, Capasso, &
Miceli, 2000). However, while neuropsychological observations
clearly support the C/V distinction, the anatomical correlates of such
distinction are still unknown. We investigated this issue by means of
an event-related fMRI experiment, with a grapheme verification
task
Inhibitory effects of quercetin and other flavonoids on electrically-induced contractions of guinea pig isolated ileum.
No full textQuercetin and other flavonoids inhibited electrically-induced contractions of guinea pig isolated ileum
Effects of the herbal formulation ColiMil on upper gastrointestinal transit in mice in vivo
No full textThe effects of levamisole and D-penicillamine on some inflammatory models in vivo and on PG production in vitro.
No full text
Gladiopycnodontidae, a new family of pycnodontiform fi shes from the Late Cretaceous of Lebanon, with the description of three genera
No full textThe osteology of Gladiopycnodus karami gen. et sp. nov., of Monocerichthys scheuchzeri gen. et sp. nov. and of Rostropycnodus gayeti gen. et sp. nov., three new fossil fishes from the marine Cenomanian (Late Cretaceous) of Lebanon, is studied in detail. Some of their cranial characters and the presence of a postcoelomic bone clearly refer these fishes to the order Pycnodontiformes. However, they differ from all other described Pycnodontiformes by two important characters. Their snout is elongated as a rostrum, formed by the enlarged prefrontal and the toothless premaxilla, with this premaxilla sutured by its upper margin to the lower margin of the prefrontal. Their pectoral fin is replaced by a strong spine articulated with the cleithrum. These two apomorphies justify the erection of a new family, the Gladiopycnodontidae. The skull of Monocerichthys scheuchzeri sp. nov. does not differ greatly from a classical pycnodontiform skull and this species seems to be the more primitive member of this new family. Gladiopycnodus karami gen. et sp. nov. and Rostropycnodus gayeti gen. et sp. nov. are much more specialized. They share some apomorphies not present in Monocerichthys scheuchzeri gen. et sp. nov., i. e., an extremely long rostrum and an elongated first anal pterygiophore that sustains with the postcoelomic bone a strong and long anal spine. Gladiopycnodontidae fam. nov. and Coccodontidae share a series of apomorphies that justify the erection of a new superfamily, Coccodontoidea, grouping these two families
Big Tech corporations and AI: A Social License to Operate and Multi-Stakeholder Partnerships in the Digital Age
No full textThe pervasiveness of AI-empowered technologies across multiple sectors has led to drastic changes concerning traditional social practices and how we relate to one another. Moreover, market-driven Big Tech corporations are now entering public domains, and concerns have been raised that they may even influence public agenda and research. Therefore, this chapter focuses on assessing and evaluating what kind of business model is desirable to incentivise the AI for Social Good (AI4SG) factors. In particular, the chapter explores the implications of this discourse for SDG #17 (global partnership) and how this goal may encourage Big Tech corporations to strengthen multi-stakeholder partnerships that promote effective public-private and civil society partnerships and the meaningful co-presence of non-market and market values. In doing so, the chapter proposes an analysis of the sociological notion of "social license to operate" (SLO) elaborated in the mining and extractive industry literature and introduces it into the discourse on sustainable digital business models and responsible management of risks in the digital age. This serves to explore how such a social license can be adopted as a practice by digital business models to foster trust, collaboration and coordination among different actors - AI researchers and initiatives, institutions and civil society at large - for the support of SDGs interrelated targets and goals
Interface of graphane with copper : a van der Waals density-functional study
No full textVarious forms of hydrogenated graphene have been produced to date by several groups, while the synthesis of pure graphane has not been achieved yet. The study of the interface between graphane, in all its possible hydrogenation configurations, and catalyst metal surfaces can be pivotal to assess the feasibility of direct CVD growth methods for this material. We investigated the adhesion of graphane to a Cu(111) surface by adopting the vdW-DF2-C09 exchange-correlation functional, which is able to describe dispersion forces. The results are further compared with the PBE and the LDA exchange-correlation functionals. We calculated the most stable geometrical configurations of the slab/graphane interface and evaluated how graphane's geometrical parameters are modified. We show that dispersion forces play an important role in the slab/graphane adhesion. Band structure calculations demonstrated that in the presence of the interaction with copper, the band gap of graphane is not only preserved, but also enlarged, and this increase can be attributed to the electronic charge accumulated at the interface. We calculated a substantial energy barrier at the interface, suggesting that CVD graphane films might act as reliable and stable insulating thin coatings, or also be used to form compound layers in conjunction with metals and semiconductors
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