40 research outputs found
Pinofuranoxins A and B, Bioactive Trisubstituted Furanones Produced by the Invasive Pathogen Diplodia sapinea
Two new bioactive trisubstituted furanones, named pinofuranoxins A and B (1 and 2), were isolated from Diplodia sapinea, a worldwide conifer pathogen causing severe disease. Pinofuranoxins A and B were characterized essentially by NMR and HRESIMS spectra, and their relative and absolute configurations were assigned by NOESY experiments and computational analyses of electronic circular dichroism spectra. They induced necrotic lesions on Hedera helix L., Phaseolus vulgaris L., and Quercus ilex L. Compound 1 completely inhibited the growth of Athelia rolfsii and Phytophthora cambivora, while 2 showed antioomycetes activity against P. cambivora. In the Artemia salina assay both toxins showed activity inducing larval mortality
Cohort Profile: A European Multidisciplinary Network for the Fight against HIV Drug Resistance (EuResist Network)
: The EuResist cohort was established in 2006 with the purpose of developing a clinical decision-support tool predicting the most effective antiretroviral therapy (ART) for persons living with HIV (PLWH), based on their clinical and virological data. Further to continuous extensive data collection from several European countries, the EuResist cohort later widened its activity to the more general area of antiretroviral treatment resistance with a focus on virus evolution. The EuResist cohort has retrospectively enrolled PLWH, both treatment-naïve and treatment-experienced, under clinical follow-up from 1998, in nine national cohorts across Europe and beyond, and this article is an overview of its achievement. A clinically oriented treatment-response prediction system was released and made available online in 2008. Clinical and virological data have been collected from more than one hundred thousand PLWH, allowing for a number of studies on the response to treatment, selection and spread of resistance-associated mutations and the circulation of viral subtypes. Drawing from its interdisciplinary vocation, EuResist will continue to investigate clinical response to antiretroviral treatment against HIV and monitor the development and circulation of HIV drug resistance in clinical settings, along with the development of novel drugs and the introduction of new treatment strategies. The support of artificial intelligence in these activities is essential
Da Baco a Farfalla: storia di una metamorfosi
Nel corso degli anni, di necessità in necessità, nella biblioteca dell’Istituto Zooprofilattico
Sperimentale dell’Abruzzo e del Molise “G.Caporale”(IZSAM) sono
state create e gestite attività per soddisfare bisogni conoscitivi e formativi impellenti
legati all’evoluzione del contesto (società digitale e della conoscenza) e dei
compiti istituzionali.
Dalla conservazione fisica di libri e riviste a quella virtuale, dalla catalogazione
home made all’esperienza SBN e ACNP, dall’indicizzazione e spoglio dei periodici
all’indicizzazione delle risorse; dalle cartoline postali per le richieste di articoli
scientifici all’universo NILDE: una manciata di anni per copernicane rivoluzioni
della galassia Biblioteca.
Allo stesso tempo l’aumento e la differenziazione degli utenti, conseguenza
della pervasività e diffusione della rete hanno determinato la comparsa di nuovi
scenari e candidato la Biblioteca a protagonista di molteplici variegati fronti:
formazione,
produzione di ricerca scientifica,
valutazione della ricerca scientifica,
creazione di repository istituzionale,
informazione normativa e giornalistica. La Biblioteca dell’IZSAM ha fatto scelte coraggiose, come l’accesso aperto:la rivista
open access Veterinaria Italiana, corredata di impact factor; il repository istituzionale
- vetrina e archivio (a breve auto implementato); la fornitura degli articoli
direttamente ai ricercatori.
I risultati conseguiti riguardano due aspetti essenziali:
−− il rafforzamento del valore sociale in termini di diffusione della conoscenza,
di formazione e informazione degli utenti, di raccolta e conservazione
della documentazione scientifica, di interlocutore privilegiato aperto al
territorio locale soprattutto per le tematiche sanitarie;
−− l’incremento del valore economico, vale a dire l’utile realizzato sugli investimenti
di funzionamento (abbonamenti alle banche dati, gold road, personale),
in termini di produzione e pubblicazione di risultati della ricerca scientifica,
valutazione della produzione scientifica, realizzazione di risparmi
attraverso la partecipazione a consorzi, contributo dato alla presentazione o
rendicontazione di progetti di ricerca, twinning, opportunità di incontro tra
ricercatori, ritorno d’immagine e “fiducia” per l’intera organizzazione.During the past years, so to address the different needs of our users, the library
of the dell’Istituto Zooprofilattico Sperimentale dell’Abruzzo e del Molise
“G.Caporale”(IZSAM) has fostered several activities to support the pressing
scientific and educational necessities arising from both the emergence of the socalled
information society – data-driven societies, which are dependant of the
use of information and communication technologies, and the evolution of the
institutional role of the library itself.
The past decade has been characterised by radical changes in the library science
and management. We went from the physical to the digital archiving of books
and journals, from an artisanal archiving procedure to the with SBN and ACNP,
from the use of indexing paper-based publications to online indexing and search
engines, from postcards sent to request scientific articles to the NILDE universe
At the same time, our users grew in number and became a heterogeneous
group, assigning to the library a leading role in a all new set of scenarios prompted
by the information-revolution:
education;
scientific research production;
scientific research evaluation;
creation of an institutional repository;
circulation of news, both media-oriented and governance-related.
The IZASAM library made brave decisions, like fostering an open access policy
with respect to the scientific, peer-reviewed journal Veterinaria Italiana, which is
indexed in some of the major scientific repositories and has an impact factor; as
well as with the creation of an institutional repository – an (auto-implemented)
archive, and the supporting of the IZASAM research staff by providing them
directly with the research articles and books that they may need.The obtained results concerns two pivotal aspects:
the strengthening of the social value of the library; re: the sharing of
information and knowledge, the fostering users’ education, the collection
and archiving of scientific publications, and the crucial role that the
library acquired in its territory for the sharing of scientific information
concerning health-related topics;
the growing of the economic value; i.e. the profit made on the investments
made to improve the library’s activities (subscription to repositories, gold
road, and staff), along with the production and publication of scientific
research, evaluation of the scientific output, the participation in consortia,
the collaboration in research projects, i.e. focusing on the budgeting and
circulation of news relevant to the considered research projects, twinning,
as well as organisation of networking opportunities for the IZASAM
researchers; and eventually the support to the reputation of the whole
IZASAM and of the public trust in it
AI-based Data Preparation and Data Analytics in Healthcare: The Case of Diabetes
The Associazione Medici Diabetologi (AMD) collects and manages one of the
largest worldwide-available collections of diabetic patient records, also known
as the AMD database. This paper presents the initial results of an ongoing
project whose focus is the application of Artificial Intelligence and Machine
Learning techniques for conceptualizing, cleaning, and analyzing such an
important and valuable dataset, with the goal of providing predictive insights
to better support diabetologists in their diagnostic and therapeutic choices.Comment: The work has been presented at the conference Ital-IA 2022
(https://www.ital-ia2022.it/
Su alcuni punti nodali della questione ucraina (XIX-XXI secolo)
The chapter analyses the \u201cUkrainian Question\u201d, through examples of old and new analyses on Ukrainian identity, starting from an essay written by the British historian A.J. Toynbee in 1916, when the result of the WW1 and the future of Ukraine was still uncertain. Toynbee\u2019s assumptions are compared with interpretations given by various authors from 19th up to 21st centuries, showing that the crux of the matter is still debated by conteporary analysts. In conclusion, it is expressed the hope that the new presidency could take significant steps in order to consolidate the Ukrainian sovereignity in a peaceful perspective of democratic development
Management of Germ Cell Tumors During the Outbreak of the Novel Coronavirus Disease-19 Pandemic:A Survey of International Expertise Centers
BACKGROUND: The coronavirus disease 2019 (COVID-19) pandemic has become a public health emergency affecting frail populations, including patients with cancer. This poses the question of whether cancer treatments can be postponed or modified without compromising their efficacy, especially for highly curable cancers such as germ cell tumors (GCTs). MATERIALS AND METHODS: To depict the state-of-the-art management of GCTs during the COVID-19 pandemic, a survey including 26 questions was circulated by e-mail among the physicians belonging to three cooperative groups: (a) Italian Germ Cell Cancer Group; (b) European Reference Network-Rare Adult Solid Cancers, Domain G3 (rare male genitourinary cancers); and (c) Genitourinary Medical Oncologists of Canada. Percentages of agreement between Italian respondents (I) versus Canadian respondents (C), I versus European respondents (E), and E versus C were compared by using Fisher's exact tests for dichotomous answers and chi square test for trends for the questions with three or more options. RESULTS: Fifty-three GCT experts responded to the survey: 20 Italian, 6 in other European countries, and 27 from Canada. Telemedicine was broadly used; there was high consensus to interrupt chemotherapy in COVID-19-positive patients (I = 75%, C = 55%, and E = 83.3%) and for use of granulocyte colony-stimulating factor primary prophylaxis for neutropenia (I = 65%, C = 62.9%, and E = 50%). The main differences emerged regarding the management of stage I and stage IIA disease, likely because of cultural and geographical differences. CONCLUSION: Our study highlights the common efforts of GCT experts in Europe and Canada to maintain high standards of treatment for patients with GCT with few changes in their management during the COVID-19 pandemic. IMPLICATIONS FOR PRACTICE: Despite the chaos, disruptions, and fears fomented by the COVID-19 illness, oncology care teams in Italy, other European countries, and Canada are delivering the enormous promise of curative management strategies for patients with testicular cancer and other germ cell tumors. At the same time, these teams are applying safe and innovative solutions and sharing best practices to minimize frequency and intensity of patient contacts with thinly stretched health care capacity
A machine-learning based bio-psycho-social model for the prediction of non-obstructive and obstructive coronary artery disease
Background: Mechanisms of myocardial ischemia in obstructive and non-obstructive coronary artery disease (CAD), and the interplay between clinical, functional, biological and psycho-social features, are still far to be fully elucidated. Objectives: To develop a machine-learning (ML) model for the supervised prediction of obstructive versus non-obstructive CAD. Methods: From the EVA study, we analysed adults hospitalized for IHD undergoing conventional coronary angiography (CCA). Non-obstructive CAD was defined by a stenosis < 50% in one or more vessels. Baseline clinical and psycho-socio-cultural characteristics were used for computing a Rockwood and Mitnitski frailty index, and a gender score according to GENESIS-PRAXY methodology. Serum concentration of inflammatory cytokines was measured with a multiplex flow cytometry assay. Through an XGBoost classifier combined with an explainable artificial intelligence tool (SHAP), we identified the most influential features in discriminating obstructive versus non-obstructive CAD. Results: Among the overall EVA cohort (n = 509), 311 individuals (mean age 67 ± 11 years, 38% females; 67% obstructive CAD) with complete data were analysed. The ML-based model (83% accuracy and 87% precision) showed that while obstructive CAD was associated with higher frailty index, older age and a cytokine signature characterized by IL-1β, IL-12p70 and IL-33, non-obstructive CAD was associated with a higher gender score (i.e., social characteristics traditionally ascribed to women) and with a cytokine signature characterized by IL-18, IL-8, IL-23. Conclusions: Integrating clinical, biological, and psycho-social features, we have optimized a sex- and gender-unbiased model that discriminates obstructive and non-obstructive CAD. Further mechanistic studies will shed light on the biological plausibility of these associations. Clinical trial registration: NCT02737982
Proceedings of LOAIT '07 : II Workshop on Legal Ontologies and Artificial Intelligence Techniques
Proceedings of the 2nd Workshop on Legal Ontologies and Artificial Intelligence Techniques June 4th, 2007, Stanford Universit
Quantum-centric Supercomputing for Materials Science: A Perspective on Challenges and Future Directions
Computational models are an essential tool for the design, characterization,
and discovery of novel materials. Hard computational tasks in materials science
stretch the limits of existing high-performance supercomputing centers,
consuming much of their simulation, analysis, and data resources. Quantum
computing, on the other hand, is an emerging technology with the potential to
accelerate many of the computational tasks needed for materials science. In
order to do that, the quantum technology must interact with conventional
high-performance computing in several ways: approximate results validation,
identification of hard problems, and synergies in quantum-centric
supercomputing. In this paper, we provide a perspective on how quantum-centric
supercomputing can help address critical computational problems in materials
science, the challenges to face in order to solve representative use cases, and
new suggested directions.Comment: 60 pages, 14 figures; comments welcom
