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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

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
 
Sezioni

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.

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.

News DIFA

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.
A new test of CPT invariance with light nuclei
A new result has been obtained by the ALICE Collaboration at the CERN Large Hadron Collider (LHC) on the equality of a fundamental property of nuclear matter and anti-matter, the mass. It has been experimentally confirmed on light nuclei to a precision improving the previous limits by factors between 10 and 100.
New type of Hill top inflation
A new model of cosmological inflation is proposed. It is based on the idea that an initial quantum state of the Universe is not pure but mixed and is described by a micorocanonical density matrix. The model predicts reasonable value of some observable quantities.
Low-temperature technique of very thin silicon ion implanted epitaxial detectors
A new technique of large-area thin ion implanted silicon detectors has been developed by the FAZIA Collaboration. Preliminary results of these detectors used as a first stage in a ΔE − E telescope are very encouraging, allowing charge identification in the range Z = 2–25, at low energy thresholds.
Charged-particle spectroscopy in organic semiconducting single crystals
Direct charged-particle detectors based on solution-grown Organic Semiconducting Single Crystals (OSSCs) are shown to be capable to detect charged particles. The good peak discrimination allow to estimate the µτ value, and to perform Time-of-Flight experiments on such kind of organic materials.
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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