A5091864130- Cryospheric studies and observations
- Astro and Planetary Science
- Nuclear Physics and Applications
- Species Distribution and Climate Change
- Geology and Paleoclimatology Research
- Complex Systems and Time Series Analysis
- Plant Water Relations and Carbon Dynamics
- Atmospheric and Environmental Gas Dynamics
- Solar and Space Plasma Dynamics
- Plant and animal studies
- Climate variability and models
- Isotope Analysis in Ecology
- Tree-ring climate responses
- Meteorological Phenomena and Simulations
- Complex Network Analysis Techniques
- Archaeology and ancient environmental studies
- Planetary Science and Exploration
- Fire effects on ecosystems
- Hydrology and Watershed Management Studies
- Maritime and Coastal Archaeology
- Seismic Waves and Analysis
- Geomagnetism and Paleomagnetism Studies
- Geochemistry and Geologic Mapping
- Radiation Therapy and Dosimetry
- Radiation Detection and Scintillator Technologies
Institute of Geosciences and Earth Resources
2017-2024
University of Palermo
2024
National Research Council
2017-2023
IMT School for Advanced Studies Lucca
2014-2017
Istituto Nazionale di Fisica Nucleare
2013-2015
Istituto Nazionale di Fisica Nucleare, Sezione di Torino
2015
University of Turin
2008-2014
National Institute for Astrophysics
2006-2011
Abstract Recent findings showed that users on Facebook tend to select information adhere their system of beliefs and form polarized groups – i.e., echo chambers. Such a tendency dominates cascades might affect public debates social relevant issues. In this work we explore the structural evolution communities interest by accounting for emotions engagement. Focusing pages reporting scientific conspiracy content, characterize size two fitting daily resolution data with three growth models i.e....
Abstract Plants emission of Volatile Organic Compounds (VOCs) is involved in a wide class ecological functions, as VOCs play crucial role plants interactions with biotic and abiotic factors. Accordingly, they vary widely across species underpin differences strategy. In this paper, spontaneously emitted by 109 plant (belonging to 56 different families) have been qualitatively quantitatively analysed order provide an alternative classification species. particular, using bipartite networks...
We consider a dynamical model of distress propagation on complex networks, which we apply to the study financial contagion in networks banks connected each other by direct exposures. The that is an extension DebtRank algorithm, recently introduced literature. mechanics very simple: When bank suffers loss, propagates its creditors, who turn suffer losses, and so on. original assumes losses are propagated linearly between banks. Here relax this assumption introduce one-parameter family...
Fire plays a crucial role in shaping ecosystem functions at multiple spatial and temporal scales. While traditional studies on fire regimes focus central tendencies of attributes, such as average frequency, size, seasonality, recent research highlights the importance pyrodiversity critical ecological factor. Pyrodiversity reflects variability attributes across space time is generally thought to increase biodiversity. Although many authors have extensively studied effects functioning, much...
Abstract. This experimental work addresses the need for high-resolution, long and homogeneous climatic time series that facilitate study of climate variability over scales decades to millennia. We present a high-resolution record foraminiferal δ18O from Central-Mediterranean sediment core covers last two The was analyzed using advanced spectral methods shows highly significant oscillatory components with periods roughly 600, 350, 200, 125 11 years. Over millennium, our data show several...
The dynamics of carbon dioxide fluxes in the high-altitude Alpine Critical Zone is only partially understood. complex geomorphology induces significant spatial heterogeneity, and a strong interannual variability present often-extreme climatic environmental conditions ecosystems. To explore relative importance temporal CO2 fluxes, we analysed set in-situ measurements obtained during summers from 2018 to 2021 four sampling plots, characterised by soils with different underlying bedrock within...
Mountain ecosystems are highly sensitive to the impacts of climate change. Nevertheless, our knowledge critical biogeochemical processes—key understanding how these cope shifting environmental conditions—remains limited.This study examines and compares carbon dioxide (CO2) turbulent flux measurements, obtained through eddy covariance (EC) method at two Italian high-altitude sites: Torgnon Nivolet in Western Alps. These sites, part ICOS (Integrated Carbon Observatory...
Fire is a natural phenomenon that modulates form, function, diversity and distribution of plant species affecting ecosystem dynamics. Global warming land use change are altering fire regimens potentially threating functioning persistence. However, pyrogeographical studies aiming to understand differences across usually not considering the role played functional traits. Here, based on recent pyroregionalization in Italy using data from Italian National Forest Inventory trait values public...
The calculation algorithm of a modern treatment planning system for ion-beam radiotherapy should ideally be able to deal with different ion species (e.g. protons and carbon ions), provide relative biological effectiveness (RBE) evaluations describe beam lines. In this work we propose new approach irradiation outcomes computations, the beamlet superposition (BS) model, which satisfies these requirements.
We introduce a georeferenced dataset of Net Ecosystem Exchange (NEE), Respiration (ER) and meteo-climatic variables (air soil temperature, air relative humidity, volumetric water content, pressure, solar irradiance) collected at the Nivolet Plain in Gran Paradiso National Park (GPNP), western Italian Alps, from 2017 to 2023. NEE ER are derived by measuring temporal variation CO
Abstract. The spatial and temporal variability of air temperature, precipitation, actual evapotranspiration (AET) their related water balance components, as well responses to anthropogenic climate change, provide fundamental information for an effective management resources a proactive involvement users stakeholders, in order develop apply adaptation mitigation strategies at the local level. In this study, using interdisciplinary research approach tailored needs, we evaluate past, present...
Abstract. The dating of the cores we drilled from Gallipoli terrace in Gulf Taranto (Ionian Sea), previously obtained by tephroanalysis, is checked applying a method to objectively recognize volcanic events. This automatic statistical procedure allows identifying pulse-like features series and evaluating quantitatively confidence level at which significant peaks are detected. We applied it 2000-years-long pyroxenes GT89-3 core, on based. confirms performed detecting high originally used...
Abstract. A high-resolution, well-dated foraminiferal δ18O record from a shallow-water core drilled the Gallipoli Terrace in Gulf of Taranto (Ionian Sea), previously measured over last two millennia, has been extended to cover 707 BC–AD 1979. Spectral analysis this series, performed using singular-spectrum (SSA) and other classical advanced methods, strengthens results obtained analysing shorter profile, detecting same highly significant oscillations about 600, 380, 170, 130 11 years,...
Abstract. The analysis of two historical time series temperature and precipitation in Northeast China, spanning, respectively, 1870–2004 1841–2004, performed by continuous wavelet transform other classical advanced spectral methods, is presented here. Both variables show a particular trend oscillations about 85, 60, 35 20 years that are highly significant, with phase opposition at the centennial scale 20-year scale. four relative to single seasons shows cycle typical summer monsoon season,...
The present work applies several advanced spectral methods to the analysis of macroeconomic fluctuations in three countries European Union: Italy, Netherlands, and United Kingdom. We focus here particular on singular-spectrum (SSA), which provides valuable spatial frequency information multivariate data that goes far beyond a pure time domain. discussed are well established geosciences life sciences, but not yet widespread quantitative economics. In particular, they enable one identify...
Mountain ecosystems are particularly sensitive to the effects of climate change and require a detailed understanding how their components respond varying environmental conditions. However, knowledge crucial biogeochemical variables, such as carbon dioxide (CO2) fluxes in Critical Zone high-altitude grassland Alpine tundra, is still patchy. In this framework, two methods typically adopted measure CO2 exchanges between atmosphere underlying ecosystem: eddy covariance accumulation chambers....
Abstract Despite the common misconception of nearly static organisms, plants do interact continuously with environment and each other. It is fair to assume that during their evolution they developed particular features overcome similar problems exploit possibilities from environment. In this paper we introduce various quantitative measures based on recent advancements in complex network theory allow measure effective similarities species. By using approach similarity fruit-typology...
The radiometric and tephro-analysis dating of shallow-water Ionian Sea cores is summarized.The 2-kyr series volcanic pyroxene grains provides information on the activity Campanian area for period that precedes detailed documentation eruptions.