cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Acutiserolis Brandt 1988
Creators: name: Poore, Gary
name: Storey, Melissa
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Isopoda
Serolidae
Acutiserolis

description: Acutiserolis sp. Figs 1g, h; 2 d Material examined. E of South Island, New Zealand (45.0170°S, 177.4617°E to 45.0095°S, 177.4532°E), 2039– 1995 m, 6 May 2003 (NIWA stn TAN0307/98), NIWA 31205 (male, 31 mm). Remarks. A single male collected at a much lower latitude than A. spinosa is similar to the Ross Sea specimens. Key features of the coxal plates, middorsal and pleotelson sculpture, and armature of coxal ventral plates 2 and 3 and pleonal sternites are for all practical purposes indistinguishable. However, the spine on the head is considerably longer than in A. spinosa, reaching to the posterior margin of pereonite 3. Coxal plate 6 exceeds the pleotelson by slightly more than its length, further than in A. spinosa. Pleonal epimera 2 and 3 are similarly longer. While the male pereopod 2 propodus of the two species has similar numbers of robust palmar setae, the propodus of the New Zealand specimen is more elongated than in A. spinosa (fig. 2d). In the absence of a larger sample and specimens from intermediate localities we are reluctant to describe this as a new species.
description: Published as part of Poore, Gary & Storey, Melissa, 2009, Brucerolis gen. n., and Acutiserolis Brandt, 1988, deep-water southern genera of isopods (Crustacea, Isopoda, Serolidae), pp. 143-160 in ZooKeys 18 (18) on page 151, DOI: 10.3897/zookeys.18.129, http://zenodo.org/record/576499
Intermittency and rough-pipe turbulence
Creators: name: Mehrafarin, Mohammad
name: Pourtolami, Nima
Publisher: name: arXiv
Year: 2008
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Recently, by analyzing the measurement data of Nikuradze, it has been proposed (N. Goldenfeld, Phys. Rev. Lett. {\bf{96}}, 044503, 2006) that the friction factor, $f$, of rough pipe flow obeys a scaling law in the turbulent regime. Here, we provide a phenomenological scaling argument to explain this law and demonstrate how intermittency modifies the scaling form, thereby relating $f$ to the intermittency exponent, $η$. By statistically analyzing the measurement data of $f$, we infer a satisfactory estimate for $η$ ($\approx 0.02$), the inclusion of which is shown to improve the data-collapse curve. This provides empirical evidence for intermittency other than the direct measurement of velocity fluctuations.
description: To appear in Phys. Rev. E, Rapid Communications
Real versus complex beta-deformation of the N=4 planar super Yang-Mills theory
Creators: name: Elmetti, Federico
name: Mauri, Andrea
name: Penati, Silvia
name: Santambrogio, Alberto
name: Zanon, Daniela
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This is a sequel of our paper hep-th/0606125 in which we have studied the {\cal N}=1 SU(N) SYM theory obtained as a marginal deformation of the {\cal N}=4 theory, with a complex deformation parameter βand in the planar limit. There we have addressed the issue of conformal invariance imposing the theory to be finite and we have found that finiteness requires reality of the deformation parameter β. In this paper we relax the finiteness request and look for a theory that in the planar limit has vanishing beta functions. We perform explicit calculations up to five loop order: we find that the conditions of beta function vanishing can be achieved with a complex deformation parameter, but the theory is not finite and the result depends on the arbitrary choice of the subtraction procedure. Therefore, while the finiteness condition leads to a scheme independent result, so that the conformal invariant theory with a real deformation is physically well defined, the condition of vanishing beta function leads to a result which is scheme dependent and therefore of unclear significance. In order to show that these findings are not an artefact of dimensional regularization, we confirm our results within the differential renormalization approach.
description: 18 pages, 7 figures; v2: one reference added; v3: JHEP published version
Cold Nuclear Matter In Holographic QCD
Creators: name: Rozali, Moshe
name: Shieh, Hsien-Hang
name: Van Raamsdonk, Mark
name: Wu, Jackson
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the Sakai-Sugimoto model of holographic QCD at zero temperature and finite chemical potential. We find that as the baryon chemical potential is increased above a critical value, there is a phase transition to a nuclear matter phase characterized by a condensate of instantons on the probe D-branes in the string theory dual. As a result of electrostatic interactions between the instantons, this condensate expands towards the UV when the chemical potential is increased, giving a holographic version of the expansion of the Fermi surface. We argue based on properties of instantons that the nuclear matter phase is necessarily inhomogeneous to arbitrarily high density. This suggests an explanation of the "chiral density wave" instability of the quark Fermi surface in large N_c QCD at asymptotically large chemical potential. We study properties of the nuclear matter phase as a function of chemical potential beyond the transition and argue in particular that the model can be used to make a semi-quantitative prediction of the binding energy per nucleon for nuclear matter in ordinary QCD.
description: 31 pages, LaTeX, 1 figure, v2: some formulae corrected, qualitative results unchanged
Towards an understanding of heavy baryon spectroscopy
Creators: name: Valcarce, A.
name: Garcilazo, H.
name: Vijande, J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The recent observation at CDF and D0 of $Σ_b$, $Σ^*_b$ and $Ξ_b$ baryons opens the door to the advent of new states in the bottom baryon sector. The states measured provide sufficient constraints to fix the parameters of phenomenological models. One may therefore consistently predict the full bottom baryon spectra. For this purpose we have solved exactly the three-quark problem by means of the Faddeev method in momentum space. We consider our guidance may help experimentalists in the search for new bottom baryons and their findings will help in constraining further the phenomenological models. We identify particular states whose masses may allow to discriminate between the dynamics for the light-quark pairs predicted by different phenomenological models. Within the same framework we also present results for charmed, doubly charmed, and doubly bottom baryons. Our results provide a restricted possible assignment of quantum numbers to recently reported charmed baryon states. Some of them are perfectly described by $D-$wave excitations with $J^P=5/2^+$, as the $Λ_c (2880)$, $Ξ_c(3055)$, and $Ξ_c(3123)$.
description: Accepted for publication in Eur. Phys. J. A
Symmetry projection to coupled-cluster singles and doubles wave function through the Monte Carlo method
Creators: name: Mizusaki, Takahiro
name: Schuck, Peter
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A new method for calculating the symmetry-projected energy of coupled-cluster singles and doubles (CCSD) wave function through the Monte Carlo method is proposed. We present benchmark calculations in considering the three-level Lipkin model which is a simple and minimal model with two phases: spherical and deformed ones. It is demonstrated that this new method gives good ground state energy and low-lying spectra.
description: 6 pages, 4 figures, submitted to PRC
Design study for third harmonic flat-topping of the Triumf 520 MeV cyclotron
Creators: name: Michelson, David George
Publisher: name: University of British Columbia
Year: 2010

description: The accelerating voltage in the 520 MeV/200 uA H-cyclotron at TRIUMF is developed in a resonant cavity and consequently has a sinusoidal time dependence. It is possible to "flat-top" the accelerating voltage waveform by superimposing a third harmonic waveform of the appropriate relative amplitude and phase on the fundamental waveform. This increases the phase acceptance of the cyclotron by reducing the spread in energy gain per turn normally associated with the spread in phase of the ion beam with respect to the peak of the RF waveform. Slight adjustments to the shape of the waveform can introduce longitudinal bunching mechanisms which tend to compensate for several second order effects that normally limit the cyclotron's performance during high current or high energy resolution modes of operation. The relative simplicity of TRIUMF's dee geometry suggests that both the fundamental and third harmonic modes could be excited in the same rather than in separate accelerator RF cavities. Implementing such a system will require the development of new cavity coupling and tuning mechanisms for the existing radio frequency cavity and a new radio frequency control system. Because access to the cyclotron is severely restricted by scheduled beam production and high residual radioactivity in the cyclotron vacuum tank, a test cavity built fromcomponents identical to those used in the cyclotron RF cavity was adapted for initial development and testing of third harmonic cavity tuning and control systems at operational dee voltages (100 kilovolts at 23 MHz, 11 kilovolts at 69 MHz) and under hard vacuum (10⁻⁷ Torr). This thesis describes: a. the scope and technical objectives of the third harmonic flat-topping project at TRIUMF including required improvements to the fundamental RF system; b. the design and initial development of cavity tuning and coupling mechanisms for the RF test cavity; c. the demonstration of a flat-topped accelerating voltage in the test cavity at operational voltage levels while under vacuum; and, d. the design and initial development of a prototype version of the new radio frequency control system. The results obtained show that under realistic conditions of vacuum and RF input power, it is possible to simultaneously excite the fundamental and third harmonic modes in an RF cavity with mechanical construction and operational characteristics similar to those of the cyclotron RF cavity.
Intercomparison of micro- and nanodosimetry Monte Carlo simulations: an approach to assess the influence of different cross-sections for low-energy electrons on the dispersion of results
Creators: name: Villagrasa, Carmen
name: Rabus, Hans
name: Baiocco, Giorgio
name: Perrot, Yann
name: Parisi, Alessio
name: Struelens, Lara
name: Qiu, Rui
name: Beuve, Michael
name: Poignant, Floriane
name: Pietrzak, Marcin
name: Nettelbeck, Heidi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Medical Physics (physics.med-ph)
subject: Computational Physics (physics.comp-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: An intercomparison of microdosimetric and nanodosimetric quantities simulated Monte Carlo codes is in progress with the goal of assessing the uncertainty contribution to simulated results due to the uncertainties of the electron interaction cross-sections used in the codes. In the first stage of the intercomparison, significant discrepancies were found for nanodosimetric quantities as well as for microdosimetric simulations of a radiation source placed at the surface of a spherical water scoring volume. This paper reports insight gained from further analysis, including additional results for the microdosimetry case where the observed discrepancies in the simulated distributions could be traced back to the difference between track-structure and condensed-history approaches. Furthermore, detailed investigations into the sensitivity of nanodosimetric distributions to alterations in inelastic electron scattering cross-sections are presented which were conducted in the lead up to the definition of an approach to be used in the second stage of the intercomparison to come. The suitability of simulation results for assessing the sought uncertainty contributions from cross-sections is discussed and a proposed framework is described.
description: 23 pages, 7 figures, 5 tables plus 3 supplementary figures
The Language of Filmic Audio Description:
a Corpus-Based Analysis of Adjectives
Creators: name: Arma, Saveria
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2011

description: Audio description is a recent technique that allows primarily blind and low-sighted people to gain adequate access to audiovisual products such as movies, theatre performances, sport matches, museums, archives, web resources and sculpture works.
An additional audio track
describes the visual elements that would otherwise remain inaccessible to the visually impaired, such as settings, costumes, atmospheres and written titles.
Though very recent, audio description has rapidly expanded worldwide and is widely used in English-speaking countries, where it is applied to most audiovisual fields and in particular to cinema, theatre and television.
At the same time, audio description has attracted more and more attention from an academic perspective, for its being a technique that ‘translates’ the visual into verbal and ‘manipulates’ the original product in such a way to carefully select only those elements that are pertinent to the comprehension and might be described in the relatively short pauses between dialogues.
From a linguistic perspective, so far most researchers have focused on more qualitative than quantitative investigations and have therefore analyzed case studies to apply, verify and discuss the existing guidelines.

This research work is therefore conceived as an original attempt to bridge the gap between the various disciplines and to suggest how they can contribute to the comprehension of the language of audio description through a corpus-oriented approach. Since audio description is very scarcely developed in Italy both from a practical and an academic perspective, this work also aims at raising awareness about the importance of AD as a tool for audiovisual accessibility and as a matter of academic interest.
In particular, this research works focuses on the use of the adjectival function from both a grammatical and a semantic perspective. The corpus-based analysis has been conducted on a corpus of 69 English AD film scripts by means of corpus analysis tools (AntConc and CQP in particular) and has
combined both quantitative and qualitative information, based on the convergence of different disciplines, from Narratology to Film Studies, from Linguistics to Visual Literacy Theories.
A hyperfunctional NCX3-proteolytic fragment generated by Abeta1-42 delays caspase-12 activation and neuronal death in mice
Creators: name: D'Avanzo, Carla
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2011

description: Abeta1-42, the peptide involved in the pathogenesis of Alzheimer’s disease, causes a dysregulation of intracellular Ca2+ homeostasis. However, all the mechanisms involved in this process remain unknown. Here, we reported that A1-42 induced an increase in NCX currents (INCX) in the reverse mode of operation that was completely prevented by silencing or knocking-out the ncx3 gene. Moreover, a calpain-dependent cleavage of NCX3 was essential for the Abeta1-42-dependent INCX increase. Indeed, the removal of the calpain recognition-site abolished the Abeta1-42-stimulatory effect on INCX. Consistently, the N-terminal proteolytic fragment of NCX3 generated INCX comparable to those recorded after Abeta1-42 exposure.
On the other hand, Abeta1-42 exposure increased Ca2+ refilling into endoplasmic reticulum (ER), an event that was prevented in neurons silenced or knocked-out for NCX3. This latter finding suggested that NCX3 was involved in ER Ca2+-refilling stimulated by Abeta1-42. Finally, NCX3 silencing caused an earlier activation of Abeta1-42-induced caspase-12. Indeed, in NCX3 silenced neurons, Abeta1-42 exposure hastened caspase-dependent apoptosis, thus reinforcing neuronal cell death. Altogether, these results suggested that the NCX3 hyperfunctional proteolytic fragment, produced by Abeta1-42-induced calpain activation, contributed to neuronal Ca2+-refilling into ER. This event exerted a neuroprotective effect during Abeta1-42 insult by delaying caspase-12 activation, apoptosis, and neuronal death.
Direct Numerical Simulations of Liquids on Microstructured Surfaces: Analysing the Fluid Dynamics on Packing
Creators: name: Bonart, Henning
name: Repke, Jens-Uwe
Publisher: name: Technische Universität Berlin
Year: 2018
Subjects: subject: 621 Angewandte Physik
subject: packing
subject: Cahn-Hilliard-Navier-Stokes
subject: liquid film
subject: CHNS
subject: microstructured surface

description: Structured high performance packing for packing columns have macrostructures, e.g., corrugated or folded sheets, and in many cases microstructures or surface topographies with geometrical dimensions in the same order of magnitude as the film thicknesses. For an optimal design of microstructured surfaces and for the development of novel methodologies to predict the mass transfer, a reliable description of the influence of these microstructures is crucial. To research the influence of these microstructures on the liquid film in detail, and later on optimize the geometry, Direct Numerical Simulations applying the Cahn-Hilliard-Navier-Stokes (CHNS) equations were performed for this study. The model and the implementation were validated against analytical solutions for undisturbed laminar film flows. The influence of two single microstructures (triangle and rectangle) on the gas-liquid interface and the velocity in the liquid were systematically investigated. Thereby, it was observed, that small microstructures in comparison to the film thickness have no influence on the gasliquid interface. In contrast, higher structures could increase the interfacial area. The results indicate, that systematic studies on a wide range of geometries, phase properties and gas velocities can give valuable information on the path to optimal microstructures.
Influence of Liquid Density and Surface Tension on the Pinning of Sliding Droplets on a Triangular Microstructure
Creators: name: Bonart, Henning
name: Jung, Johannes
name: Kahle, Christian
name: Repke, Jens-Uwe
Publisher: name: Technische Universität Berlin
Year: 2019
Subjects: subject: 600 Technik, Technologie
subject: Cahn‐Hilliard‐Navier‐Stokes
subject: contact line dynamics
subject: drop phenomena
subject: phase field modeling
subject: pinning droplets

description: Sliding droplets are crucial in many industrial applications. Examples are coating and separation processes involving multiple phases and liquid films. Often one can observe how a sliding droplet halts midstream on a solid surface. Wetting defects such as topographic structures can lead to a pinning of sliding droplets. In order to assess the influence of liquid density and surface tension on the pinning, direct numerical simulations are performed. After the model and its discretization are introduced, the solution is validated. Simulation results of gravity‐driven droplets on inclined surfaces with structures in the size of the droplets are presented and the observed requirements for pinning a sliding droplet to a surface are discussed.
Computer-aided rolling of parts with variable rectangular cross-section
Creators: name: Sepehri, Nariman
Publisher: name: University of British Columbia
Year: 2010

description: A computer-aided process planning scheme for flat rolling of symmetric parts with variable rectangular cross-section is proposed. As a starting point, El-Kalay and Sparling's formula for spread was found to be suitable for this application and thus was used in developing the method. Two distinct criteria were considered in the analysis, namely: kinematic and dynamic constraints. In order to control the precision of the rolled parts, provisions were made for specifying the tolerances of the finishing passes in the form of convexity constraints. Numerical formulation was used and the resulting non-linear equations were solved by an iterative method. Based on the process constraints and the numerical solution, a computer algorithm was then developed to determine the number of rolling passes required, as well as the dynamic variation of the roll gap as a function of the rolled length. Preliminary laboratory experiments were then conducted to verify the validity of the predicted results and the applicability of the spread formula in determining the process behaviour. These experiments led to the modification of the spread formula. Using the modified formula it was found that a good agreement existed between the predicted results and those of the experiments. Operating aspects were also considered. It was proposed that a control system based on the rolled length would be both simple and suitable. It was then concluded that for rectangular parts with moderate variation in shape and reasonable complexity, where formed-die rolling and die-forging are also applicable, this method has considerable advantages as it replaces the forging hardware with the rolling software.
Signatures of reionization on Lyman alpha emitters
Creators: name: Dayal, Pratika
name: Ferrara, Andrea
name: Gallerani, Simona
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We use a semi-analytic model of Lyman alpha emitters (LAEs) to constrain the reionization history. By considering two physically motivated scenarios in which reionization ends either early (ERM, z_i ~ 7) or late (LRM, z_i ~ 6), we fix the global value of the IGM neutral fraction (e.g. chi_{HI}=3 times 10^{-4}, 0.15 at z=6.56 for the ERM and LRM, respectively) leaving only the star formation efficiency and the effective escape fraction of Lya photons as free parameters. The ERM fits the observed LAE luminosity function (LF) at z=5.7 and 6.56 requiring no redshift evolution or mass dependence of the star formation efficiency, and LAE star formation rates (SFR) of 3-103 solar masses/year, contributing approximately 8% of the cosmic SFR density at z=5.7. The LRM requires a physically uncomfortable drop of approximately 4.5 times in the SFR of the emitters from z=6.5 to 5.7. Thus, the data seem to imply that the Universe was already highly ionized at z=6.56. The mass-dependent Lya transmissivity is between 0.36-0.51 (ERM) and less than 0.26 (LRM) at z=6.56. The LF data at z=4.5 imply an extra Lya line damping factor of approximately 0.25 possibly due to dust; the presence of a (clumpy) dust component with E(B-V) ~ 0.28 is also required to reproduce the observed large Lya equivalent widths at the same redshift. Additional useful information can be extracted from the line profile (weighted) skewness, found to be S_W=10-17 Angstrom for the two reionization models, which shows an interesting L_alpha-chi_{HI} anti-correlation, holding under the model assumptions. The shortcomings of the model and strategies to overcome them are discussed.
description: 15 pages, 10 figures, Accepted to MNRAS
Reverse Engineering and Testing of Rich Internet Applications
Creators: name: Amalfitano, Domenico
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2011

description: The World Wide Web experiences a continuous and constant evolution, where new initiatives, standards, approaches and technologies are continuously proposed for developing more effective and higher quality Web applications.
To satisfy the growing request of the market for Web applications, new technologies, frameworks, tools and environments that allow to develop Web and mobile applications with the least effort and in very short time have been introduced in the last years.
These new technologies have made possible the dawn of a new generation of Web applications, named Rich Internet Applications (RIAs), that offer greater usability and interactivity than traditional ones. This evolution has been accompanied by some drawbacks that are mostly due to the lack of applying well-known software engineering practices and approaches. As a consequence, new research questions and challenges have emerged in the field of web and mobile applications maintenance and testing.
The research activity described in this thesis has addressed some of these topics with the specific aim of proposing new and effective solutions to the problems of modelling, reverse engineering, comprehending, re-documenting and testing existing RIAs.
Due to the growing relevance of mobile applications in the renewed Web scenarios, the problem of testing mobile applications developed for the Android operating system has been addressed too, in an attempt of exploring and proposing new techniques of testing automation for these type of applications.
Superpixel-guided Discriminative Low-rank Representation of Hyperspectral Images for Classification
Creators: name: Yang, Shujun
name: Hou, Junhui
name: Jia, Yuheng
name: Mei, Shaohui
name: Du, Qian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: In this paper, we propose a novel classification scheme for the remotely sensed hyperspectral image (HSI), namely SP-DLRR, by comprehensively exploring its unique characteristics, including the local spatial information and low-rankness. SP-DLRR is mainly composed of two modules, i.e., the classification-guided superpixel segmentation and the discriminative low-rank representation, which are iteratively conducted. Specifically, by utilizing the local spatial information and incorporating the predictions from a typical classifier, the first module segments pixels of an input HSI (or its restoration generated by the second module) into superpixels. According to the resulting superpixels, the pixels of the input HSI are then grouped into clusters and fed into our novel discriminative low-rank representation model with an effective numerical solution. Such a model is capable of increasing the intra-class similarity by suppressing the spectral variations locally while promoting the inter-class discriminability globally, leading to a restored HSI with more discriminative pixels. Experimental results on three benchmark datasets demonstrate the significant superiority of SP-DLRR over state-of-the-art methods, especially for the case with an extremely limited number of training pixels.
Interplay of magnetism and dimerization in pressurized Kitaev material $β$-Li$_2$IrO$_3$
Creators: name: Shen, Bin
name: Jesche, Anton
name: Seidler, Maximilian L.
name: Freund, Friedrich
name: Gegenwart, Philipp
name: Tsirlin, Alexander A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present magnetization measurements on polycrystalline $β$-Li$_2$IrO$_3$ under hydrostatic pressures up to 3~GPa and construct the temperature-pressure phase diagram of this material. Our data confirm that magnetic order breaks down in a first-order phase transition at $p_{\rm{c}}$ $\approx$ 1.4~GPa and additionally reveal a step-like feature -- magnetic signature of structural dimerization -- that appears at $p_{\rm{c}}$ and shifts to higher temperatures upon further compression. Following the structural study by L. S. I. Veiga et al. [Phys. Rev. B 100, 064104 (2019)], we suggest that a partially dimerized phase with a mixture of magnetic and non-magnetic Ir$^{4+}$ sites develops above $p_{\rm{c}}$. This phase is thermodynamically stable between 1.7 and 2.7~GPa according to our ab initio calculations. It confines the magnetic Ir$^{4+}$ sites to weakly coupled tetramers with a singlet ground state and no long-range magnetic order. Our results rule out the formation of a pressure-induced spin-liquid phase in $β$-Li$_2$IrO$_3$ and reveal peculiarities of the magnetism collapse transition in a Kitaev material. We also show that a compressive strain imposed by the pressure treatment of $β$-Li$_2$IrO$_3$ enhances signatures of the 100~K magnetic anomaly at ambient pressure.
description: 10 pages, 10 figures
La sottrazione internazionale dei minori nel Regolamento (CE) n. 2201/2003: aspetti problematici
Creators: name: Balato, Francesco
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2013

description: Il tema della ricerca compendiata nel presente lavoro si colloca nel contesto delle relazioni endofamiliari con caratteri di transnazionalità concernenti l’affidamento dei figli minori ad uno o ad entrambi i genitori all’indomani della crisi della compagine familiare.
Si verifica sovente nella prassi che uno dei genitori (spesso il non affidatario), vanifichi la custodia legale dell’altro, mediante la sottrazione del minore ed il successivo trasferimento dello stesso in Stati diversi da quello in cui il minore risiedeva con il legittimo affidatario.
In detti casi, ed in presenza, come riferito, di elementi che attestino la transnazionalità del rapporto, soccorre il diritto internazionale privato, con la normativa interna ed internazionale all’uopo predisposta.
In questa materia la disciplina internazionalprivatistica non si colloca in atti normativi interni, bensì in strumenti di tipo internazionale. Vengono in rilievo non soltanto gli importanti strumenti convenzionali adottati in seno alla conferenza permanente dell’Aja di diritto internazionale privato (si pensi, ad es. alle convenzioni dell’Aja del 1902, la successiva del 1961, nonché le più recenti convenzioni di Lussemburgo del 1980 e ancora dell’Aja firmate entrambe nello stesso anno); ma altresì il penetrante contributo del sempre più pervasivo diritto comunitario.
Peraltro, il diritto di famiglia e la circolazione europea delle decisioni in materia matrimoniale o relative alla responsabilità genitoriale sono stati investiti dalla recente e incisiva regolamentazione comunitaria, che, stante la diretta applicabilità nei singoli ordinamenti destinatari, si pone quale punto di riferimento privilegiato per l’interprete e per i giudici in particolare, chiamati a risolvere controversie in materia di famiglia e dal respiro sovranazionale.
Food chains Hygiene: monitoring of retail products and characterization of isolated microbial species (virulence factors, ability to form biofilm, antibiotic resistance)
Creators: name: Cicotti, Flavia
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2013

description: Hygienistic food monitoring can be performed at various supply chain levels; the thesis “Food chains Hygiene: monitoring of retail products and characterization of isolated microbial species (virulence factors, ability to form biofilm, antibiotic resistance)” focused attention on the final phase of this distribution chain. Different types of meat and vegetables samples were investigated on microbiological basis. Samples were collected in Naples city (Italy).

According to the the CE Regulation 2073/2005, the following microbiological protocols were assessed: total bacterial count, Escherichia coli, Salmonella spp. .

The microbiological monitoring was additionally performed to evaluate: Sulphite-reducing Clostridia, Clostridium difficile, Listeria spp and L. monocytogenes, Staphylococcus spp. and S. aureus, Campylobacter spp., E. coli O157: H7, Clostridium perfringens, Enterococcus spp., Aeromonas spp ..

In addition, virulence factors studies were realized. The statistical study involved the verification of positivities registered and the frequency distributions analysis. These evaluations provided useful input to the risk assessment associated with production chains.
Topology Optimization for Large-Scale Additive Manufacturing: Generating designs tailored to the deposition nozzle size
Creators: name: Fernández, Eduardo
name: Ayas, Can
name: Langelaar, Matthijs
name: Duysinx, Pierre
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computational Geometry (cs.CG)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Additive Manufacturing (AM) processes intended for large scale components deposit large volumes of material to shorten process duration. This reduces the resolution of the AM process, which is typically defined by the size of the deposition nozzle. If the resolution limitation is not considered when designing for Large-Scale Additive Manufacturing (LSAM), difficulties can arise in the manufacturing process, which may require the adaptation of the deposition parameters. This work incorporates the nozzle size constraint into Topology Optimization (TO) in order to generate optimized designs suitable to the process resolution. This article proposes and compares two methods, which are based on existing TO techniques that enable control of minimum and maximum member size, and of minimum cavity size. The first method requires the minimum and maximum member size to be equal to the deposition nozzle size, thus design features of uniform width are obtained in the optimized design. The second method defines the size of the solid members sufficiently small for the resulting structure to resemble a structural skeleton, which can be interpreted as the deposition path. Through filtering and projection techniques, the thin structures are thickened according to the chosen nozzle size. Thus, a topology tailored to the size of the deposition nozzle is obtained along with a deposition proposal. The methods are demonstrated and assessed using 2D and 3D benchmark problems.
Supplementary Material for 'Corrected Bell and Noncontextuality Inequalities for Realistic Experiments' from Corrected Bell and non-contextuality inequalities for realistic experiments
Creators: name: Vallée, Kim
name: Emeriau, Pierre-Emmanuel
name: Bourdoncle, Boris
name: Sohbi, Adel
name: Mansfield, Shane
name: Markham, Damian
Publisher: name: The Royal Society
Year: 2023
Subjects: classificationCode: 510803
subject: Quantum information, computation and communication
classificationCode: 510899
subject: Quantum physics not elsewhere classified

description: Contextuality is a feature of quantum correlations. It is crucial from a foundational perspective as a non-classical phenomenon, and from an applied perspective as a resource for quantum advantage. It is commonly defined in terms of hidden variables, for which it forces a contradiction with the assumptions of parameter-independence and determinism. The former can be justified by the empirical property of non-signalling or non-disturbance, and the latter by the empirical property of measurement sharpness. However, in realistic experiments neither empirical property holds exactly, which leads to possible objections to contextuality as a form of non-classicality, and potential vulnerabilities for supposed quantum advantages. We introduce measures to quantify both properties, and introduce quantified relaxations of the corresponding assumptions. We prove the continuity of a known measure of contextuality, the contextual fraction, which ensures its robustness to noise. We then bound the extent to which these relaxations can account for contextuality, via corrections terms to the contextual fraction (or to any non-contextuality inequality), culminating in a notion of genuine contextuality, which is robust to experimental imperfections. We then show that ourThis article is part of the theme issue ‘Quantum contextuality, causality and freedom of choice’.
Understanding the different scaling behavior in various shell models proposed for turbulent thermal convection
Creators: name: Ching, Emily S. C.
name: Guo, H.
name: Cheng, W. C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Different scaling behavior has been reported in various shell models proposed for turbulent thermal convection. In this paper, we show that buoyancy is not always relevant to the statistical properties of these shell models even though there is an explicit coupling between velocity and temperature in the equations of motion. When buoyancy is relevant (irrelevant) to the statistical properties, the scaling behavior is Bolgiano-Obukhov (Kolmogorov) plus intermittency corrections. We show that the intermittency corrections of temperature could be solely attributed to fluctuations in the entropy transfer rate when buoyancy is relevant but due to fluctuations in both energy and entropy transfer rates when buoyancy is irrelevant. This difference can be used as a criterion to distinguish whether temperature is behaving as an active or a passive scalar.
description: accepted for publication in Physica D with the following DOI link: http://dx.doi.org/10.1016/j.physd.2008.01.001
Identifying the outflow driving sources in Orion-KL
Creators: name: Beuther, H.
name: Nissen, H. D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The enigmatic outflows of the Orion-KL region have raised discussions about their potential driving sources for several decades. Here, we present C18O(2-1) observations combined from the Submillimeter Array and the IRAM30m telescope. The molecular gas is associated on large scales with the famous northwest-southeast high-velocity outflow whereas the high-velocity gas on small spatial scales traces back to the recently identified submm source SMA1. Therefore, we infer that SMA1 may host the driving source of this outflow. Based on the previously published thermal and maser SiO data, source I is the prime candidate to drive the northeast-southwest low-velocity outflow. The source SMA1 is peculiar because it is only detected in several submm wavelength bands but neither in the infrared nor cm regime. We discuss that it may be a very young intermediate- to high-mass protostar. The estimated outflow masses are high whereas the dynamical time-scale of the outflow is short of the order 10^3yrs.
description: 4 pages, 3 figures, Astrophysical Journal Letters in press, a high-resolution version is available at http://www.mpia.de/homes/beuther/papers.html
title: Heterogeneity-aware scheduling and data partitioning for system performance acceleration
Creators: name: Yu, Teng
Publisher: name: University of St Andrews
Year: 2020

description: Over the past decade, heterogeneous processors and accelerators have become increasingly prevalent in modern computing systems. Compared with previous homogeneous parallel machines, the hardware heterogeneity in modern systems provides new opportunities and challenges for performance acceleration. Classic operating systems optimisation problems such as task scheduling, and application-specific optimisation techniques such as the adaptive data partitioning of parallel algorithms, are both required to work together to address hardware heterogeneity. Significant effort has been invested in this problem, but either focuses on a specific type of heterogeneous systems or algorithm, or a high-level framework without insight into the difference in heterogeneity between different types of system. A general software framework is required, which can not only be adapted to multiple types of systems and workloads, but is also equipped with the techniques to address a variety of hardware heterogeneity. This thesis presents approaches to design general heterogeneity-aware software frameworks for system performance acceleration. It covers a wide variety of systems, including an OS scheduler targeting on-chip asymmetric multi-core processors (AMPs) on mobile devices, a hierarchical many-core supercomputer and multi-FPGA systems for high performance computing (HPC) centers. Considering heterogeneity from on-chip AMPs, such as thread criticality, core sensitivity, and relative fairness, it suggests a collaborative based approach to co-design the task selector and core allocator on OS scheduler. Considering the typical sources of heterogeneity in HPC systems, such as the memory hierarchy, bandwidth limitations and asymmetric physical connection, it proposes an application-specific automatic data partitioning method for a modern supercomputer, and a topological-ranking heuristic based schedule for a multi-FPGA based reconfigurable cluster. Experiments on both a full system simulator (GEM5) and real systems (Sunway Taihulight Supercomputer and Xilinx Multi-FPGA based clusters) demonstrate the significant advantages of the suggested approaches compared against the state-of-the-art on variety of workloads.
Modeling of the morphology and of the heat transfer in open-cell foams
Creators: name: Contento, Gaetano
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2013

description: High porosity open-cell foams are nowadays widely used in a large number of systems. Their thermo-mechanical characteristics are very useful when the efficiency in the heat removing is necessary and so they are used from the power electronic systems to the solar concentration or thermo-chemical applications. The mentioned applications generally imply high temperatures and then, the radiative heat transfer plays a significant role in the heat transfer process that, therefore, must be suitably accounted for.
The aim of this work is to improve existing models and develop accurate and user friendly new radiative heat transfer models. It has required a refined morphological modeling of inherently disordered reticulated material, too.
The morphology of the actual open-cell foams has been reviewed. Useful correlations among the principal morphological parameters of the foams have been proposed according to the basic unit geometry assumed. Also some new correlations for the prediction of the interfacial surface area per unit volume as a function of the windows diameter and the porosity have been derived.
The morphological models herein proposed are compared with experimental data found in the literature and with the existing correlations which are considered and discussed in the thesis. The results are good, particularly, when reference is made to the dependence of the struts cross-section on the porosity.
Finally, the radiation heat transfer in open cells foams has been modeled: first by a simplified analytical-numerical method based on a cubic cell, that modified an analytical model taken from the literature; then by an analytical-numerical based on a tetrakaidecahedric cell. The configuration factors have been evaluated both by numerical ray-tracing Monte Carlo method and analytically with a suitable spherical approximation of the tetrakaidecahedron. The models agree well with the experimental results, and work better than a model found in literature and based on a simple cubic representation of the foam unit cell.
Equilibrium current in a Weyl-semimetal - superconductor heterostructure
Creators: name: Madsen, Kevin A.
name: Brouwer, Piet W.
name: Breitkreiz, Maxim
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A heterostructure consisting of a magnetic Weyl semimetal and a conventional superconductor exhibits an equilibrium current parallel to the superconductor interface and perpendicular to the magnetization. Analyzing a minimal model, which as a function of parameters may be in a trivial magnetic insulator phase, a Weyl semimetal phase, or a three-dimensional weak Chern insulator phase, we find that the equilibrium current is sensitive to the presence of surface states, such as the topological Fermi-arc states of the Weyl semimetal or the chiral surface states of the weak Chern insulator. While there is a nonzero equilibrium current in all three phases, the appearance of the surface states in the topological regime leads to a reversal of the direction of the current, compared to the current direction for the trivial magnetic insulator phase. We discuss the interpretation of the surface-state contribution to the equilibrium current as a real-space realization of the superconductivity-enabled equilibrium chiral magnetic effect of a single chirality, predicted to occur in bulk Weyl superconductors.
description: 14 pages, 4 figures
Periodic orbit bifurcations as an ionization mechanism: The bichromatically driven hydrogen atom
Creators: name: Huang, S.
name: Chandre, C.
name: Uzer, T.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We investigate the multiphoton ionization of hydrogen driven by a strong bichromatic microwave field. In a regime where classical and quantum simulations agree, periodic orbit analysis captures the mechanism: Through the linear stability of periodic orbits we match qualitatively the variation of experimental ionization rates with control parameters such as the amplitudes of the two modes of the field or their relative phases. Moreover, we discuss an empirical formula which reproduces quantum simulations to a high degree of accuracy. This quantitative agreement shows the mechanism by which short periodic orbits organize the dynamics in multiphoton ionization. We also analyze the effect of longer pulse durations. Finally we compare our results with those based on the peak amplitude rule. Both qualitative and quantitative analyses are implemented for different mode locked fields. In parameter space, the localization of the period doubling and halving allows one to predict the set of parameters (amplitudes and phase lag) where ionization occurs.
Stratégie Nationale de Prévention et de Lutte contre l'Obésité en Tunisie. Exemple de Recherche-Action
Creators: name: El Ati, Jalila
Publisher: name: Zenodo
Year: 2017
Subjects: Tunisia, obesity, overweight, prevention, strategy, intervention, Bizerte, nutrition policy

description: This poster was presented on the joint INNTA (National Institute of Nutrition of Tunisia) & IRD (French National Research Institute for Sustainable Development) NUTRIPASS UNit, at the "Cité des Sciences", Tunis, Tunisia on October 2017 17-18 for the event celebrating the 60 years of the IRD in Tunisia.

Full list of authors is :

* Comité Stratégique de Pilotage: F. Allani, L. Alouane, H. Aounallah-Skhiri, A. Ben Said, F. Ben Slama, F. Delpeuch, J. El Ati, A. Ghattas, M. Hsairi, R. Laribi, M. Nabli, H. Triki, B. Zouari.

* Comité Transsectorielde la Stratégie: A. Abid, H. Amara, T. Annabi Attia, A. Arbi, Z. Atallah, S. Bellagha, A. Ben Denthaye, T. Ben Jazia, I. BessaadNagara, N. Boudrigua, M. Bouktif, A. Boussaid, K; Chebbi, A. Cherif, I. Dakhli, J. Danguir, H. DebbabiHamza, D. Dogui, H. Dridi, H. Driss Gouiaa, M. Echeikh, H. ElAfrite, B. El Ghak, E. Elloumi, L. Gam, L. Gnaoui, M. Kefi, A. Khouaja, M. Mokdad, R. Mokni, F. Mosbah, N. Mraihi, J. Slimi, S. Smaili, H. Thraya, S. Trabelsi, A. Zarrouk, S. Zelfel, H. Zneidi-Hajji.

* Comité Stratégique Local (Bizerte): I. Blanco, M. Bockri, S. Essoussi, H. Gaddacha, Jabari, L. Mahjoub, S. Mrabet, A. Ouadhour, S. Toumi.

** Equipe du projet Obe-Maghreb:: C. Béji, A. Bour, F. Delpeuch, A. Derouiche, J. El Ati, A. Gartner, M.Holdsworth, Y. Kameli, E. Landais, P. Traissac
Loop-Cluster Simulation of the $t$-$J$ Model on the Honeycomb Lattice
Creators: name: Jiang, F. -J.
name: Kämpfer, F.
name: Nyfeler, M.
name: Wiese, U. -J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Inspired by the lattice structure of the unhydrated variant of the superconducting material Na$_x$CoO$_2 \cdot$yH$_2$O at $ x = {1/3}$, we study the $t$-$J$ model on a honeycomb lattice by using an efficient loop-cluster algorithm. The low-energy physics of the undoped system and of the single hole sector is described by a systematic low-energy effective field theory. The staggered magnetization per spin $\widetilde{\cal M}_s = 0.2688(3)$, the spin stiffness $ρ_s = 0.102(2) J$, the spin wave velocity $c= 1.297(16) J a$, and the kinetic mass $M'$ of a hole are obtained by fitting the numerical Monte Carlo data to the effective theory predictions.
description: 8 pages, 10 figures, 2 tables