0000000000963719

AUTHOR

G. Gatti

showing 3 related works from this author

Light-Induced Renormalization of the Dirac Quasiparticles in the Nodal-Line Semimetal ZrSiSe

2020

In nodal-line semimetals linearly dispersing states form Dirac loops in the reciprocal space, with high degree of electron-hole symmetry and almost-vanishing density of states near the Fermi level. The result is reduced electronic screening and enhanced correlations between Dirac quasiparticles. Here we investigate the electronic structure of ZrSiSe, by combining time- and angle-resolved photoelectron spectroscopy with ab initio density functional theory (DFT) complemented by an extended Hubbard model (DFT +U +V). We show that electronic correlations are reduced on an ultrashort timescale by optical excitation of high-energy electrons-hole pairs, which transiently screen the Coulomb interac…

General PhysicsHubbard modelDirac (software)General Physics and AstronomyFOS: Physical sciencesElectronic structurespin01 natural sciencesMathematical SciencesSettore FIS/03 - Fisica Della Materiasymbols.namesakeCondensed Matter - Strongly Correlated ElectronsEngineeringTDDFT0103 physical sciences010306 general physicsElectronic band structurePhysicsCondensed Matter - Materials ScienceCondensed matter physicsStrongly Correlated Electrons (cond-mat.str-el)Fermi levelMaterials Science (cond-mat.mtrl-sci)dynamicsARPESPhysical SciencesQuasiparticleDensity of statessymbols1st-principlesDensity functional theory
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Characteristics of the colorectal cancers diagnosed in the early 2000s in Italy. Figures from the IMPATTO study on colorectal cancer screening

2015

The impact of organized screening programmes on colorectal cancer (CRC) can be observed at a population level only several years after the implementation of screening. We compared CRC characteristics by diagnostic modality (screen-detected, non-screen-detected) as an early outcome to monitor screening programme effectiveness. Data on CRCs diagnosed in Italy from 2000 to 2008 were collected by several cancer registries. Linkage with screening datasets made it possible to divide the cases by geographic area, implementation of screening, and modality of diagnosis (screen-detected, non-screen-detected).We compared the main characteristics of the different subgroups of CRCs through multivariate …

Colorectal cancer; Colorectal cancer screening; Italy; Epidemiology; Public Health Environmental and Occupational HealthItalyEpidemiologyPublic Health Environmental and Occupational HealthSettore MED/42 - Igiene Generale E ApplicataColorectal cancerColorectal cancer screening
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Incidence trends of colorectal cancer in the early 2000s in Italy. Figures from the IMPATTO study on colorectal cancer screening

2015

We utilised the IMPATTO study's archives to describe the 2000-2008 colorectal cancer (CRC) incidence rate trends in Italy, once screening programmes based on the faecal immunochemical test were implemented in different areas. Data on CRCs diagnosed in Italy from 2000 to 2008 in subjects aged 40-79 years were collected by 23 cancer registries. Incidence rate trends were evaluated as a whole and by macro-area (North-Centre and South-Islands), presence of a screening programme, sex, ten-year age class, anatomic site, stage at diagnosis, and pattern of diagnosis (screen-detected, non-screen-detected). The annual percent change (APC) of incidence rate trends, with 95% confidence intervals (95%CI…

Colorectal cancer; Fecal immunochemical test; Incidence rates; Italy; Screening; Epidemiology; Public Health Environmental and Occupational HealthItalyFecal immunochemical testEpidemiologyEnvironmental and Occupational HealthScreeningPublic Health Environmental and Occupational HealthSocio-culturaleIncidence ratesPublic HealthIncidence rateSettore MED/42 - Igiene Generale E ApplicataColorectal cancer
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