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Direttore

Nicola Semprini Cesari

tel: +39 051 2095254

Responsabile Amministrativo

Maria Giovanna Piazza

tel: +39 051 2095257

Portineria sede di via Irnerio

via Irnerio, 46

40126 - Bologna - Italia

tel: +39 051 2091004

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Portineria DIFA - Sede principale

Dipartimento di Fisica e Astronomia

viale Berti Pichat, 6/2

40127 - Bologna - Italia

tel: +39 051 20 9 5162

fax: +39 051 252774

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Lunedì-venerdì: ore 7:30-18:30

Portineria DIFA-Settore Astronomia: Navile

via Piero Gobetti 93/2

40129 - Bologna

tel: +39 051 2095809

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Sezioni

UniBO wins the national phase of the International Physicists Tournament

The UniBO team wins the national selection of the prestigious International Physicists Tournament and is heading for the international finals in Moscow

All-flavor Search for a Diffuse Flux of Cosmic Neutrinos with Nine Years of ANTARES Data

Results of the search for an all-flavor diffuse neutrino signal with 9-years of the ANTARES neutrino telescope data,obtained by two young UniBO and INFN-BO researchers, Luigi Fusco and Federico Versari, highlighted on the web page of the AAS journals.

News DIFA

Assessment of the possible contribution of space ties on-board GNSS satellites to the terrestrial reference frame
The progress of Earth-System Studies and the reliability of services for civil applications critically depend on the quality of the underlying Terrestrial Reference Frame. For the first time, the authors critically evaluated the performance of an innovative approach for the computation of the frame.
Inauguration of Cuore: the cold giant detector that studies neutrinos
On October 23 2017 the CUORE experiment (Cryogenic Underground Observatory for Rare Events) has been inaugurated at the Italian National Institute for Nuclear Physics Gran Sasso National Laboratories in Italy. CUORE is one of the most promising efforts to determine whether neutrinos are “Majorana particles” – identical to their own antiparticles. CUORE could also help us home in on the masses hierarchy of the three types, or “flavors,” of neutrinos. Physics results, based on two months of data taking, recently submitted to the journal Physical Review Letters, set the most precise limits yet on where scientists might find a theorized process, known as neutrinoless double beta decay.
Shedding a new light on the growth of cosmic magnetic fields
Two new numerical works explored how magnetic fields observed in the largest cosmic structures might have originated.
Identification of a T cell gene expression clock obtained by exploiting a MZ twin design
The authors identify a multivariate signature able to estimate human chronological age from the expression profile of 125 genes, combining Data Analysis tools and a unique experimental design involving monozygotic twins of ages ranging whole adult lifespan.
Direct imaging of defect formation in strained organic flexible electronics by Scanning Kelvin Probe Microscopy
The development of flexible electronics depends crucially on the understanding of how strain affects electronic material properties at the nano-scale. A group of DIFA researchers develops a Scanning Probe Microscopy technique to investigate the formation electronic defects during strain.
Ocean warming and acidification synergistically increase coral mortality
An experiment performed at CO2 vents in the Mediterranean Sea shows, for the first time in the field, the synergistic adverse effect of seawater warming and acidification on coral mortality. An acidified and warmer ocean will likely reduce the environmental and socioeconomic benefits of ecosystems reliant on calcifying organisms.
Quality Matters: Systematic Analysis of Radiofrequency Electromagnetic Field Exposure
The authors analyze 20 years of publications on the effect of electromagnetic radiofrequency fields (mobile phones and wi-fi): quantifying the goodness of the experiments by 5 indices, the positive results observed show an inverse association with the quality of the experimental protocol applied.
Textile Organic Electrochemical Transistors as a Platform for Wearable Biosensors
The development of wearable biosensors is receiving a great deal of attention in view of noninvasive and continuous monitoring of physiological parameters (physical, chemical and biological) in healthcare applications. This paper describes the development of a fully textile, wearable biosensor based on an organic electrochemical transistor (OECT) entirely made of conductive polymer (PEDOT:PSS).
Nanostructured Surfaces Investigated by Quantitative Morphological Studies
The Authors investigated and quantitatively analyzed at the nano-scale the morphology of different surfaces by atomic force microscopy. A detailed knowledge of surface morphology is mandatory for a complete study on the performances of devices, such as solar cells and light-emitting diodes.
Sea-Level Change in the Northern Mediterranean Sea from Long-Period Tide Gauge Time Series
The analysis of centennial (from the last decades of the 19th century till 2012) tide gauge time series in the Northern Mediterranean shows consistent long-period linear trends of sea-level rise ranging between +1,2 and +1,3 mm/yr with associated errors varying from 0,2 to 0,5 mm/yr.
Electrically Controlled “Sponge Effect” of PEDOT:PSS Governs Membrane Potential and Cellular Growth
We found that the redox state of PEDOT:PSS (poly(3,4-ethylenedioxythiophene) poly-(styrenesulfonate)) is able to influence the electrophysiological properties of the plasma membrane through a “sponge-like” effect on ions, with effects on cell adhesion and proliferation.
Gas-phase synthesis of Mg-Ti nanoparticles for solid-state hydrogen storage
Understanding and tuning hydrogen – materials interaction at the nanoscale is a crucial step in the development of hydrogen storage and sensor systems. Here we report on a novel nanomaterials with remarkable hydrogen sorption kinetics.
Direct X-ray photoconversion in flexible organic thin film devices operated below 1V
Innovative materials for X-rays detection are needed to overcome the stiffness and growth complexity in large-area of traditional ones. Here is reported the first highly sensitive thin, flexible organic direct X-ray detector, operated below 1V. We also propose a model describing the X-rays signal observed.
The cosmological lithium problem: a hint from n_TOF
A puzzling discrepancy between the observed primordial lithium abundance in the universe and its theoretical prediction, known as the cosmological lithium problem, is about to be reduced, thanks to new measurements. At the neutron time-of-flight facility n_TOF at CERN, the key reaction cross-sections have been measured for the first time.
A stochastic model of randomly accelerated walkers for human mobility
Recent studies of human mobility associate displacements patterns to scale-free superdiffusive random walks (Lévy flights). We show, on the basis of a data set describing the trajectories of 780,000 private vehicles in Italy, that the Lévy flight model cannot explain the behaviour of travel times and speeds.
Relative frequencies of seismic main shocks after strong shocks in Italy
We estimate the probability that strong seismic shocks, widely felt by the population but not dangerous in itself (4.0≤Mw<5.0), are followed by main shocks (Mw≥5.0) potentially able to threat the health and the properties of the persons living in the epicentral area
Measurements on top-antitop production at ATLAS
New measurements of the differential cross-section of top-quark pair production using data collected by ATLAS experiment have been published recently on two papers. The results of these analyses will be used to improve the modeling of the system and as new constraints in the determination of parton distribution functions.
New limits on neutrinoless double beta decay
The measurements performed in the first year on a tower of the CUORE experiment, in the INFN Laboratories of Gran Sasso, made it possible to reduce the upper limit on the probability of the 130Te decay with production of two electrons and the absence of neutrinos.
ANTARES and IceCube joint search opens a new dimension in Neutrino Astronomy
A combined analysis for the search for cosmic neutrino point-sources over the whole Southern Sky has been performed by the two complementary neutrino telescope. Although no excess has been observed, it has been shown that the combination of both data samples improves the sensitivity for point-sources up to a factor two.
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Contatti

Direttore

Nicola Semprini Cesari

tel: +39 051 2095254

Responsabile Amministrativo

Maria Giovanna Piazza

tel: +39 051 2095257

Portineria sede di via Irnerio

via Irnerio, 46

40126 - Bologna - Italia

tel: +39 051 2091004

Orari di apertura
Lunedì-venerdì: ore 7:30-19:00

Portineria DIFA - Sede principale

Dipartimento di Fisica e Astronomia

viale Berti Pichat, 6/2

40127 - Bologna - Italia

tel: +39 051 20 9 5162

fax: +39 051 252774

Orari di apertura
Lunedì-venerdì: ore 7:30-18:30

Portineria DIFA-Settore Astronomia: Navile

via Piero Gobetti 93/2

40129 - Bologna

tel: +39 051 2095809

Orari di apertura
Lunedì-venerdì: ore 8:30-18:30