Exact out-of-equilibrium steady states in the semiclassical limit of the interacting Bose gas

We study the out-of-equilibrium properties of a classical integrable non-relativistic theory, with a time evolution initially prepared with a finite energy density in the thermodynamic limit. The theory considered here is the Non-Linear Schrodinger equation which describes the dynamics of the one-dimensional interacting Bose gas in the regime of high occupation numbers. The main emphasis is on the determination of the late-time Generalised Gibbs Ensemble (GGE), which can be efficiently semi-numerically computed on arbitrary initial states, completely solving the famous quench problem in the classical regime. We take advantage of known results in the quantum model and the semiclassical limit to achieve new exact results for the momenta of the density operator on arbitrary GGEs, which we successfully compare with ab-initio numerical simulations. Furthermore, we determine the whole probability distribution of the density operator (full counting statistics), whose exact expression is still out of reach in the quantum model.Comment: 42 pages, 9 figures, resubmission to SciPost Physic

Entanglement R\'enyi Entropies from Ballistic Fluctuation Theory: the free fermionic case

The large-scale behaviour of entanglement entropy in finite-density states, in and out of equilibrium, can be understood using the physical picture of particle pairs. However, the full theoretical origin of this picture is not fully established yet. In this work, we clarify this picture by investigating entanglement entropy using its connection with the large-deviation theory for thermodynamic and hydrodynamic fluctuations. We apply the universal framework of Ballistic Fluctuation Theory (BFT), based the Euler hydrodynamics of the model, to correlation functions of \emph{branch-point twist fields}, the starting point for computing R\'enyi entanglement entropies within the replica approach. Focusing on free fermionic systems in order to illustrate the ideas, we show that both the equilibrium behavior and the dynamics of R\'enyi entanglement entropies can be fully derived from the BFT. In particular, we emphasise that long-range correlations develop after quantum quenches, and accounting for these explain the structure of the entanglement growth. We further show that this growth is related to fluctuations of charge transport, generalising to quantum quenches the relation between charge fluctuations and entanglement observed earlier. The general ideas we introduce suggest that the large-scale behaviour of entanglement has its origin within hydrodynamic fluctuations.Comment: 53 pages, 2 figure

Individuazione e monitoraggio mediante l'uso delle fototrappole associato al radiotracking, di alcuni fitness-desiderata di fagiano e di istrice, importanti specie di interesse venatorio e conservazionistico

Le specie target di questo studio sono: - Specie di interesse venatorio: un gruppo di fagiane (N. 17) provenienti da cattura in Aziende Faunistica (AFV), monitorate mediante radiocollare VHF e tramite attività di video-fototrappolaggio durante il periodo della nidificazione; - Specie di interesse conservazionistico: un istrice “rilasciato” e monitorato con l'ausilio del radiocollare GPS con tecnologia GSM e tramite il video-fototrappolaggio delle tane. A questo scopo è stato ideato e realizzato un progetto con duplice azione di monitoraggio mediante l'utilizzo delle fototrappole ed uso del radiotracking

Individuazione e monitoraggio mediante l'uso delle fototrappole associato al radiotracking, di alcuni fitness-desiderata di fagiano e di istrice, importanti specie di interesse venatorio e conservazionistico

Le specie target di questo studio sono: - Specie di interesse venatorio: un gruppo di fagiane (N. 17) provenienti da cattura in Aziende Faunistica (AFV), monitorate mediante radiocollare VHF e tramite attività di video-fototrappolaggio durante il periodo della nidificazione; - Specie di interesse conservazionistico: un istrice “rilasciato” e monitorato con l'ausilio del radiocollare GPS con tecnologia GSM e tramite il video-fototrappolaggio delle tane. A questo scopo è stato ideato e realizzato un progetto con duplice azione di monitoraggio mediante l'utilizzo delle fototrappole ed uso del radiotracking

Giustizia sociale, stato, diritti = Social justice, the state, rights. WP C.S.D.L.E. "Massimo D'Antona" .IT - 120/2011

No abstract

MatFuse: Controllable Material Generation with Diffusion Models

Creating high quality and realistic materials in computer graphics is a challenging and time-consuming task, which requires great expertise. In this paper, we present MatFuse, a novel unified approach that harnesses the generative power of diffusion models (DM) to simplify the creation of SVBRDF maps. Our DM-based pipeline integrates multiple sources of conditioning, such as color palettes, sketches, and pictures, enabling fine-grained control and flexibility in material synthesis. This design allows for the combination of diverse information sources (e.g., sketch + image embedding), enhancing creative possibilities in line with the principle of compositionality. We demonstrate the generative capabilities of the proposed method under various conditioning settings; on the SVBRDF estimation task, we show that our method yields performance comparable to state-of-the-art approaches, both qualitatively and quantitatively

Investigation on the compressive strength and durability properties of alkali-activated slag mortar: Effect of superabsorbent polymer dosage and water content

This paper presents the properties of alkali-activated slag (AAS) mortar additivated with a superabsorbent polymer (SAP) to improve its mechanical and durability properties. The effect of different dosages of SAP (0.0–0.3% with respect to the blast furnace slag weight) and different extra water additions on setting time, autogenous shrinkage, compressive strength, water permeability, frost resistance, heat of hydration, and porosity is presented and discussed. The results highlight the beneficial effect of adding SAP on the mechanical and durability properties of the proposed mixtures. Only at higher percentages of SAP and additional water occur performance drops due to excessive macro-porosity of the system. It is interesting to point out that, in contrast, shrinkage always decreases as the percentages of SAP addition and additional water increase, although it cannot be completely eliminated. Experimental evidence also highlights that significant benefits can be gained from using this material in harsh environments

Digital image correlation applied to lime-based mortars: Shrinkage tests for durability evaluations in restoration works.

Repair mortars applied to architectural heritage buildings for preservation, maintenance, restoration, and strengthening must be carefully studied regarding the many different compatibility issues. In the case of repair interventions, two closely related aspects are especially important: the mortar composition, and the method of its application, which can strongly influence the shrinkage phenomena during the setting and hardening phases. The aim of present experimental research is to set-up a procedure by Digital Imaging Correlation (DIC) technique to deepen shrinkage phenomena in lime-based mortars, thus comparing many different materials, wrongly considered to be similar in behaviour. The technique enable not only shrinkage measurement accuracy higher than standard tests, but also to understand its mechanisms of evolution over time, by evaluating locally strain stress before micro-crack appearing. The interpretation of a large number of test results represents a significant contribution to the development of operational tools to address material selection in specific contexts

Functional and anatomic response of the retina and the choroid to intravitreal bevacizumab for macular edema.

Purpose: This study evaluated the rate of change of best corrected visual acuity (BCVA), central retinal sensitivity, and retinal and choroidal thickness in patients with macular edema after intravitreal bevacizumab. Methods: This was a prospective, nonrandomized, interventional study. Thirty-four consecutive eyes (34 patients) with macular edema were included in the study. Choroidal neovascularization was present in 21 cases, stage 1 retinal angiomatous proliferation in 6 cases, branch retinal vein occlusion in 4 cases, and diabetic edema in 3 cases. Evaluation of BCVA (Early Treatment Diabetic Retinopathy Study [ETDRS] logarithm of the minimum angle of resolution [LogMAR]), central retinochoroidal thickness (RCT) at standardized A-scan, combined optical coherence tomography/microperimetric assessment of central retinal thickness (RT), central scotoma, and fixation behavior was performed during 12 months after treatment. Choroidal thickness was considered as the difference between RCT and RT. All patients received two initial intravitreal bevacizumab injections (1.25 mg/0.05 mL) at a 1-month interval. Results: BCVA and RT during follow-up were significantly better than at baseline. BCVA was improved of 0.32 +/- 0.3 LogMAR (P < 0.001) at month 1,0.18 +/- 0.4 LogMAR (P = 0.05) at month 6, and 0.14 +/- 0.2 (P = 0.09) at month 12. RT was reduced by 172.9 +/- 192.8 mu m (P < 0.001) at month 1,157.7 +/- 134.2 mu m (P = 0.003) at month 6, and 164.3 +/- 122.3 (P = 0.002) at month 12. Mean retinal sensitivity significantly increased during the first month; it decreased afterward, but an improvement if compared with baseline was present at each visit during follow-up. In 23.5% of cases, a choroidal thinning was present during follow-up, and in this group visual acuity at baseline and final visual improvement were significantly greater if compared with patients showing a choroidal thickening. Conclusion: Intravitreal bevacizumab for macular edema determines significant functional and anatomic improvement at the 12-month follow-up. Visual acuity at baseline and following treatment could be influenced by the choroidal involvement

Ranking the in vivo toxicity of nanomaterials in Drosophila melanogaster

In this work, we propose a quantitative assessment of nanoparticles toxicity in vivo. We show a quantitative ranking of several types of nanoparticles (AuNPs, AgNPs, cadmium-based QDs, cadmium-free QDs, and iron oxide NPs, with different coating and/or surface chemistries), providing a categorization of their toxicity outcomes. This strategy may offer an innovative high-throughput screening tool of nanomaterials, of potential and broad interest to the nanoscience community