113 research outputs found
How the largest Italian bank has survived the financial crisis: unicredit case study
This brief case study aims to analyze the story of UniCredit during the economic downturn of
the last decade, which had been the major difficulties and how the bank managed to overcome
them. The narration starts with the merger between the former Uni Credit and Capitalia in
2007 and finishes at the beginning of 2018, when the bank seemed to have found its direction
to exit the crisis. At the end of the case, a brief teaching note explores further some of the main
topics that arose during the story telling
Implemented to Be Shared: the WoPoss Annotation of Semantic Modality in a Latin Diachronic Corpus
The SNSF project A World of Possibilities [WoPoss] aims at tracking the evolution of modal meanings in the diachrony of the Latin language. Passages expressing modal notions of ‘necessity’, ‘possibility’ and ‘volition’ are annotated following a pipeline that combines both automatic and fine-grained manual annotation. Texts are first gathered from different online open access resources to create the initial dataset. Owing to the heterogeneity of formats and encodings, the files are regularized before the implementation of the automatic annotation of linguistic features. They are then uploaded to the annotation platform [INCEpTION] which has been previously customized for the fine-grained manual annotation [Bermúdez Sabel, in press]. This second type of annotation is carried out following the WoPoss guidelines [Dell’Oro, 2019] and it also involves checking the automatic annotation for curation. In a third stage the files are automatically enriched with metadata. In this paper, we focus on the first two phases of the workflow – i.e. the gathering and automatic annotation of the texts and the fine-grained manual annotation –, which have been the core tasks of the WoPoss team in the first year of the project (2019-2020)
How dendritic cells sense and respond to viral infections.
Abstract
The ability of dendritic cells (DCs) to sense viral pathogens and orchestrate a proper immune response makes them one of the key players in antiviral immunity. Different DC subsets have complementing functions during viral infections, some specialize in antigen presentation and cross-presentation and others in the production of cytokines with antiviral activity, such as type I interferons. In this review, we summarize the latest updates concerning the role of DCs in viral infections, with particular focus on the complex interplay between DC subsets and severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2). Despite being initiated by a vast array of immune receptors, DC-mediated antiviral responses often converge towards the same endpoint, that is the production of proinflammatory cytokines and the activation of an adaptive immune response. Nonetheless, the inherent migratory properties of DCs make them a double-edged sword and often viral recognition by DCs results in further viral dissemination. Here we illustrate these various aspects of the antiviral functions of DCs and also provide a brief overview of novel antiviral vaccination strategies based on DCs targeting
Visualisation of semantic shifts: the case of modal markers
Poster submission for DH2020. This poster discusses the adequacy of semantic maps for the representation of semantic shifts and how previous models can be enriched by using visual cues to add more information. The poster presents a visualisation proposal applied to the diachronic study of modal markers in Latin
New insights upon the reproductive biology of the sea cucumber Holothuria tubulosa (Echinodermata, Holothuroidea) in the Mediterranean: Implications for management and domestication
Holothuria tubulosa is one of the most common sea cucumber species inhabiting the Mediterranean Sea. Due to its commercial interest for the international market, it has been harvested without proper management causing the overexploitation of its stocks. Inadequate management is also caused by lack of information on basic biology and ecology not allowing the estimating of the species vulnerability and resilience to growing anthropogenic pressures. In this paper, we have investigated basic life-history traits of H. tubulosa (population structure and reproductive cycle) in a population of Central-Western Mediterranean (Sardinia, Italy). A macroscopic maturity scale
for both sexes was defined through an instrumental colorimetric analysis of the gonads and the ramification level of the gonad’s tubules, subsequently confirmed by histological analysis. The seasonal trend of the Gonado Somatic Index, the changes in color of the gonads and tubules ramification indicated that the spawning period of H. tubulosa was concentrated in summer with a peak in late August, closely related to the increase in water temperature.
A synchronous development of the gonads, with a unique and short reproductive event during the year, was also detected. In conclusion, this study provides new evidence on the biological and ecological features of H. tubulosa, essential data for developing a scientifically-based stock assessment as well as conservative management at a local scale. Finally, we provided basic information for the domestication of broodstock in a conservative hatchery
Bio-Ecological Features Update on Eleven Rare Cartilaginous Fish in the Central-Western Mediterranean Sea as a Contribution for Their Conservation
Cartilaginous fish are commonly recognized as key species in marine ecosystems for their fundamental ecological role as top predators. Nevertheless, effective management plans for cartilagi- nous fish are still missing, due to the lack of knowledge on their abundance, distribution or even life-history. In this regard, this paper aims at providing new information on the life-history traits, such as age, maturity, reproductive period, in addition to diet characteristics of eleven rare cartilagi- nous fish inhabiting the Central-Western Mediterranean Sea belonging to the orders Chimaeriformes (Chimaera monstrosa), Hexanchiformes (Heptranchias perlo and Hexanchus griseus), Myliobatiformes (Aetomylaeus bovinus and Myliobatis aquila), Rajiformes (Dipturus nidarosiensis and Leucoraja circu- laris), Squaliformes (Centrophorus uyato, Dalatias licha and Oxynotus centrina) and Torpediniformes (Tetronarce nobiliana), useful for their assessment and for future management actions. Particularly, the present paper provides for the first time the age estimation of D. nidarosienis and L. circularis which were both found capable of becoming older than ten years. In addition, the present study updates the sizes of first maturity of C. uyato and D. licha, which appeared to be capable of reproducing earlier than what was previously hypothesized, representing very valuable information for a better understanding of these rare species populations status and, eventually, their conservation. On the basis of the stomach content analysis, it was possible to identify five different predator groups
Periapical status in patients affected by osteoporosis: A retrospective clinical study
Objectives: To assess the periapical status in patients with osteoporosis (OP) treated with denosumab (D), bisphosphonates (BPs), or not on medication, and to understand if these conditions influence the prevalence and the progression of apical periodontitis (AP).Material and Methods: Seventy-six patients with OP alone or treated with D, or BPs, formed the study group (O), and those from 76 patients matched for age and sex, without diseases, and not taking medications, constituted the control (C) in this retrospective case-control study. The data from the complete clinical and radiographic examination, medical history, decayed, missing, and filled teeth (DMFT), and periapical index score (PAI) were recorded for each patient. Wilcoxon rank test, chi(2), and Student's t test were used as appropriate.Results: The prevalence of AP was similar in O and C. Furthermore, AP was significantly more frequent in root canal-treated teeth in O patients (p = .03).Conclusions: OP does not appear to be associated with the development of AP. Moreover, the increased prevalence of AP in root canal-treated teeth in O patients highlights a possible relationship between the healing dynamics of the disease post-therapy and the patients' medication. A larger sample is needed to confirm these findings
On the presence of the Endangered white skate Rostroraja alba in Sardinian waters
The white skate Rostroraja alba is assessed by the International Union for Conservation of Nature as Endangered globally and is now considered rare in the Mediterranean. This species has never been recorded in Sardinian seas (central western Mediterranean), but an empty eggcase was collected on a sandy bottom off the western Sardinia coasts during the MEDiterranean International Trawl Survey (MEDITS) program in 2019. A morphometric and morphological description of the Sardinian eggcase, after a comparison with measurements from other Mediterranean and Atlantic specimens, showed it to be clearly ascribable to Rostroraja alba
Single severe traumatic brain injury produces progressive pathology with ongoing contralateral white matter damage one year after injury
There is increasing recognition that traumatic brain injury (TBI) may initiate long-term neurodegenerative processes, particularly chronic traumatic encephalopathy. However, insight into the mechanisms transforming an initial biomechanical injury into a neurodegenerative process remain elusive, partly as a consequence of the paucity of informative pre-clinical models. This study shows the functional, whole brain imaging and neuropathological consequences at up to one year survival from single severe TBI by controlled cortical impact in mice. TBI mice displayed persistent sensorimotor and cognitive deficits. Longitudinal T2 weighted magnetic resonance imaging (MRI) showed progressive ipsilateral (il) cortical, hippocampal and striatal volume loss, with diffusion tensor imaging demonstrating decreased fractional anisotropy (FA) at up to one year in the il-corpus callosum (CC: − 30%) and external capsule (EC: − 21%). Parallel neuropathological studies indicated reduction in neuronal density, with evidence of microgliosis and astrogliosis in the il-cortex, with further evidence of microgliosis and astrogliosis in the il-thalamus. One year after TBI there was also a decrease in FA in the contralateral (cl) CC (− 17%) and EC (− 13%), corresponding to histopathological evidence of white matter loss (cl-CC: − 68%; cl-EC: − 30%) associated with ongoing microgliosis and astrogliosis.
These findings indicate that a single severe TBI induces bilateral, long-term and progressive neuropathology at up to one year after injury. These observations support this model as a suitable platform for exploring the mechanistic link between acute brain injury and late and persistent neurodegeneration
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