cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Fluorescent property of carbon dots extracted from cigarette smoke and the application in bio-imaging
Creators: name: Li, Yuzhao
name: Bai, Han
name: Zhang, Jin
name: Tang, Ju
name: Li, Yingfu
name: Zhang, Weizuo
name: Zhao, Zhexian
name: Xiao, Yiming
name: Lü, Yanfei
Publisher: name: arXiv
Year: 2022
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Cigarette smoke is one of the six major pollution sources in the room air. It contains large number of particles with size less than 10 nm. There exist carbon dots (CDs) in cigarette smoke which have strong fluorescence and with good bio-compatibility and low toxicity. CDs in cigarette smoke can be applied in bio-imaging which has great potential applications in the integration of cancer diagnosis and treatment. In this paper, CDs were extracted from cigarette smoke. Then, sodium borohydride was added to CDs aqueous solution for reduction and the reduced CDs (R-CDs) were used for biological cell imaging. The results indicate that the CDs with the particle size $<$10 nm in cigarette smoke are self-assembled by the polymerizated polycyclic aromatic hydrocarbons (PAHs) and ammonium nitrite which are disk nano-structure composed of $sp^2$/$sp^3$ carbon and oxygen/nitrogen groups or polymers. Sodium borohydride can reduce the carbonyl group on the surface of CDs to hydroxyl group and increase the ratio of the Na 1s ratio of the CDs from 1.86 to 7.42. The CDs can emit blue fluorescence under ultraviolet irradiation. After reduction, the R-CDS have the intensity of fluorescence 7.2 times than before and the fluorescence quantum yield increase from 6.13\% to 8.86\%. The photoluminescence (PL) wavelength of R-CDS have red-shift of 7 nm which was due to the increasing of Na element ratio. The onion epidermal cells labeled with R-CDs show that the CDs could pass through the cell wall into the cell and reach the nucleus. The cell wall and the nucleus could be clearly visualized. CDs also shows low toxicity to human bronchial epithelial cells (BEAS-2B) with good biological activity. The obtained results indicate that the CDs and R-CDs have good fluorescent property which could be used as bio-imaging agent.
description: 12 pages, 9 figures
Le politiche di austerità nella narrazione della stampa italiana
Creators: name: Giannatiempo, Marco
Publisher: name: Universita degli studi di Salerno
Year: 2016
Subjects: subject: SPS/04 SCIENZA POLITICA
subject: Austerità

description: 2013 - 2014
description: Policies of deficit and inflation rate reduction, commonly known as austerity policies, have been dominating the European economic debate for several years. The European Union’s constraints play an important role in determining the content of the economic policies implemented by member countries. Since 1979, Italy has made use of the EU institutions as a vincolo esterno (external constraint) in order to facilitate the liberalization of its economy: a goal that Italy, alone, had not the ability to pursue for many reasons. The aim of the research is to investigate the relationship between the austerity policies and the European constraints. This relationship has been observed through the views expressed by a number of individuals (politicians, journalists, academics, interest groups and others) and reported by the Italian press. The aim is to check whether the support for austerity policies is motivated by the necessity to fulfill the demands of the European institutions. The considered events are the financial crises of 1992 and 2011. The methodology is based on a content analysis of three newspaper articles: “Corriere della Sera”, “la Repubblica”, “l’Unità”. The hypothesis has a match in the empirical analysis: those who express favorable opinions to the European constraints are more oriented than those who do not show such views to support the austerity policies. Another element that determines austerity support positions is the interpretation of the economic situation in terms of emergency, but in this case the relationship is usually less intense. Data also show that there is a widespread consensus about austerity among the parties, the newspapers and the professional categories, but a strong split/gap resists regarding more specific aspects such as single economic measures and the distribution of rebalancing costs within society. [edited by Author]
A Polarimetric Study of 9 PG Quasars with the VLA
Creators: name: Baghel, Janhavi
name: Kharb, P.
name: S., Silpa
name: Ho, Luis C.
name: Harrison, C. M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present polarization images of 9 radio-loud (RL) quasars from the VLA B-array at 6 GHz. These quasars belong to the Palomar-Green (PG) "blazar" sample comprising 16 RL quasars and 8 BL Lac objects. Extensive polarization is detected in the cores, jets and lobes of all the quasars, with cores primarily displaying magnetic (B-) fields transverse to, and jets displaying fields aligned with the jet direction. Hotspots display either transverse B-fields signifying B- field compression at terminal shocks or more complex structures. The fractional polarization in the cores ranges from 1-10% and jets/lobes from 10-40%. Several of the quasars show distorted or hybrid FRI/FRII radio morphologies with indications of restarted AGN activity. We attribute this to the optical/UV selection criteria of the PG sample that remains unbiased at radio frequencies. The in-band spectral indices of the radio cores are relatively flat while they are steep in the hotspots. This is consistent with the polarization structures where the hotspots appear to be locations of jet bends or bow-shocks. We present global properties for the entire PG "blazar" sample. We find that jet powers correlate with accretion rates for the quasars; higher accretion rates result in more powerful radio jets. A correlation between the radio core fractional polarization and the 150 MHz total radio luminosity for the 9 quasars studied here may imply that more organized B-fields at the jet bases lead to higher core fractional polarization and to more powerful radio jets.
description: 24 pages, 21 figures, MNRAS accepted
Chiral nanophotonic waveguide interface based on spin-orbit coupling of light
Creators: name: Petersen, Jan
name: Volz, Jürgen
name: Rauschenbeutel, Arno
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Controlling the flow of light by means of nanophotonic waveguides has the potential of transforming integrated information processing much in the same way that conventional glass fibers have revolutionized global communication. Owing to the strong transverse confinement of the light, such waveguides give rise to a coupling between the internal spin of the guided photons and their orbital angular momentum. Here, we employ this spin-orbit coupling of light to break the mirror symmetry of the scattering of light by a single gold nanoparticle on the surface of a nanophotonic waveguide. We thereby realize a chiral waveguide coupler in which the handedness of the incident light determines the direction of propagation in the waveguide. Using this effect, we control the directionality of the scattering process and direct up to 94% of the incoupled light into a given direction. This enables novel ways for controlling and manipulating light in optical waveguides and nanophotonic structures as well as for the design of integrated optical sensors.
description: 7 pages, 5 figures
title: Χρονοπρογραμματισμός πραγματικού χρόνου : το περιοδικό μοντέλο
titleType: AlternativeTitle
Creators: name: Ασημής, Σταμάτιος Α.
Publisher: name: University of Thessaly
Year: 2010
Subjects: subject: ΠΡΑΓΜΑΤΙΚΟΣ ΧΡΟΝΟΣ ΕΠΕΞΕΡΓΑΣΙΑΣ ΔΕΔΟΜΕΝΩΝ
subject: ΑΛΓΟΡΙΘΜΟΙ

description: Τα συστήματα πραγματικού χρόνου αποτελούν ένα πεδίο στο οποίο έχει αφιερωθεί μεγάλο μέρος έρευνας και μελέτης, ειδικά τα τελευταία χρόνια. Το φάσμα εφαρμογών των συστημάτων αυτών είναι, επίσης, αρκετά ευρύ. Όπως δηλώνει και το όνομά τους, κύριο στοιχείο στα εν λόγω συστήματα είναι ο χρόνος και διαδραματίζει τον πρωταγωνιστικό ρόλο σε όλα τα ζητήματα τα οποία έχουν να κάνουν με τον σχεδίασμά, τον χρονοπρογραμματισμό και γενικότερα με την δόμηση των συστημάτων αυτών. Σε αυτήν τη μεταπτυχιακή εργασία μελετάμε την περίπτωση του Περιοδικού Μοντέλου επιδιώκοντας να επιβεβαιώσουμε μια Βέλτιστη Πολιτική Απόφασης Προτεραιότητας μεταξύ των δύο Χρηστών με την συνεχή εκτέλεση ενός αλγορίθμου που υπολογίζει τον Αναμενόμενου Αριθμού Επιτυχημένης εκτέλεσης των εργασιών των χρηστών δίνοντας τυχαίες τιμές στα αρχικά δεδομένα. Αρχικά, αναπτύσσουμε τις βασικές έννοιες των συστημάτων πραγματικού χρόνου καθώς και την κατηγοριοποίησή τους. Στο δεύτερο κεφάλαιο, παρουσιάζεται μια βιβλιογραφική - ερευνητική ανασκόπηση του συγκεκριμένου ερευνητικού πεδίου. Στη συνέχεια, αναπτύσσεται αναλυτικά ο αλγόριθμος που χρησιμοποιήθηκε για τους μαθηματικούς υπολογισμούς του μοντέλου. Τέλος, παρουσιάζονται, συγκρίνονται και αναλύονται τα αριθμητικά αποτελέσματα που προέκυψαν από την εκτέλεση του αλγορίθμου.
Visualization of ferroelectric domains in boracite using emission of terahertz radiation
Creators: name: Kinoshita, Y.
name: Kida, N.
name: Sotome, M.
name: Takeda, R.
name: Abe, N.
name: Saito, M.
name: Arima, T.
name: Okamoto, H.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report on the emission of terahertz radiation by irradiation of femtosecond laser pulses in non-centrosymmetric paraelectric and ferroelectric phases of Co$_3$B$_7$O$_{13}$I boracite. The Generation of the terahertz waves in both phases is caused by optical rectification via a second-order nonlinear optical effect. In the ferroelectric phase, we successfully visualized ferroelectric domains by analyzing the polarization state of the terahertz wave radiated from the crystal. In a large area of the crystal ($\sim$ 500 $\times$ 500 $μ$m$^2$), the observed polarization vector of the radiated terahertz wave was tilted from directions of spontaneous polarization, i.e., [100]$_{\rm cub}$, [010]$_{\rm cub}$, and [001]$_{\rm cub}$ in cubic setting, which can be explained by the presence of a ferroelectric 90$^\circ$ domain wall of the (101)$_{\rm cub}$ plane.
description: 19 pages including 4 figures
Probing the Evolution of Electron Spin Wavefunction of NV Center in diamond via Pressure Tuning
Creators: name: Ho, Kin On
name: Leung, Man Yin
name: Reddy, P.
name: Xie, Jianyu
name: Wong, King Cho
name: Jiang, Yaxin
name: Zhang, Wei
name: Yip, King Yau
name: Leung, Wai Kuen
name: Pang, Yiu Yung
name: Yu, King Yiu
name: Goh, Swee K.
name: Doherty, M. W.
name: Yang, Sen
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Understanding the profile of a qubit's wavefunction is key to its quantum applications. Unlike conducting systems, where a scanning tunneling microscope can be used to probe the electron distribution, there is no direct method for solid-state-defect based qubits in wide-bandgap semiconductors. In this work, we use pressure as a tuning method and a nuclear spin as an atomic scale probe to monitor the hyperfine structure of negatively charged nitrogen vacancy (NV) centers in diamonds under pressure. We present a detailed study on the nearest-neighbor $^{13}C$ hyperfine splitting in the optically detected magnetic resonance (ODMR) spectrum of NV centers at different pressures. By examining the $^{13}C$ hyperfine interaction upon pressurizing, we show that the NV hyperfine parameters have prominent changes, resulting in an increase in the NV electron spin density and rehybridization from $sp^3$ to $sp^2$ bonds. The $ab$ $initio$ calculations of strain dependence of the NV center's hyperfine levels are done independently. The theoretical results qualitatively agree well with experimental data without introducing any fitting parameters. Furthermore, this method can be adopted to probe the evolution of wavefunction in other defect systems. This potential capability could play an important role in developing magnetometry and quantum information processing using the defect centers.
Beam Energy Dependence of Clan Multiplicity at RHIC
Creators: name: Tang, Aihong
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In this paper, STAR's measurement of clan multiplicity is presented for AuAu collisions at $\sqrt{s_\mathrm{NN}}$ = 7.7, 11.5, 19.6, 27, 39, 62.4 and 200 GeV, for a variety of centrality classes. The mean number of particles per clan is found to decrease with decreasing centrality. Within the same centrality class, the mean number of particles per clan exhibits a reduction between 19.6 GeV and 62 GeV, with the minimum around 27 GeV. The structure is visible for most centralities, and most prominent for central collisions.
description: 6 pages, WWND 2014 conference proceeding
Basin circulation affecting sediment partitioning in a fine-grained carbonate-siliciclastic, subaqueous clinoform: the Upper Jurassic-Lower Cretaceous Vaca Muerta Formation, Neuquén Basin, Argentina
Creators: name: Paz, M.
name: Buatois, L. A.
name: Mángano, M. G.
name: Desjardins, P. R.
name: Rodríguez, M. N.
name: Ponce, J. J.
name: Minisini, D.
name: González Tomassini, F.
name: Pereira, E.
name: Carmona, N. B.
name: Fantín, M.
name: Vallejo, M. D.
Publisher: name: Geological Society of London
Year: 2022
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: Stratigraphic context of the Vaca Muerta Formation, example of facies distribution in a well, trace-fossil descriptions, and XRD and TOC geochemical data.
Signal processing on graphs: Transforms and tomograms
Creators: name: Mendes, R. Vilela
name: Mendes, Hugo C.
name: Araújo, Tanya
Publisher: name: arXiv
Year: 2014
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: Using projections on the (generalized) eigenvectors associated to matrices that characterize the topological structure, several authors have constructed generalizations of the Fourier transform on graphs. By exploring mappings of the spectrum of these matrices we show how to construct more general transforms, in particular wavelet-like transforms on graphs. For time-series, tomograms, a generalization of the Radon transforms to arbitrary pairs of non-commuting operators, are positive bilinear transforms with a rigorous probabilistic interpretation which provide a full characterization of the signals and are robust in the presence of noise. Here the notion of tomogram transform is also extended to signals on arbitrary graphs
description: 9 pages, 12 figures
PSTMonitor: Monitor Synthesis from Probabilistic Session Types
Creators: name: Burlò, Christian Bartolo
name: Francalanza, Adrian
name: Scalas, Alceste
name: Trubiani, Catia
name: Tuosto, Emilio
Publisher: name: arXiv
Year: 2022
Subjects: subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: We present PSTMonitor, a tool for the run-time verification of quantitative specifications of message-passing applications, based on probabilistic session types. The key element of PSTMonitor is the detection of executions that deviate from expected probabilistic behaviour. Besides presenting PSTMonitor and its operation, the paper analyses its feasibility in terms of the runtime overheads it induces.
description: SI: Special Issue on Selected Tool Papers of the 22nd and 23rd International Conference on Coordination Models and Languages, COORDINATION 2020 and 2021
Where you once belonged
Creators: name: Wilson, Noah Evan
Publisher: name: No Publisher Supplied
Year: 2024

description: George Harrison (“Harry”) Daley was a student at a prestigious music school, living the life he’d dreamed of and practiced for since childhood, until the sudden onset of hearing loss. Now, back home in Colorado, and having undergone radical changes in his sense of self and purpose, he is desperate to make meaning of his new circumstances. And so, he begins transcribing the final entries of the audio journal that he kept for nearly a decade, leading up to both his deafness, and his friend Jojo’s suicide attempt. The entries take him back to the end of his sophomore year, when he starts to experience the early signs of the genetic condition that left his father with profound deafness. After a failed performance, Harry decides to drop out and return to his hometown to follow his grandfather’s footsteps, seeking a spiritual life rather than one of music and ambition. Soon after he arrives, he meets Jojo Thomas, a fellow musician and seeker, and together, they travel across the western United States, growing close as they help each other navigate their own experiences with identity loss. Along their travels, they encounter fringe religious groups, off-grid communities, and a high-control cult, and the entries ultimately lead to the mysterious events surrounding Jojo’s suicide attempt. In the transcriptions of the past, Harry sets out to prove if it’s possible to reinvent himself before losing his hearing. Meanwhile, in the present, he navigates rebuilding a relationship with his father and the Deaf community in which he was raised, while learning how to support Jojo as he attempts to reinvent himself in the aftermath of his suicide attempt. Where You Once Belonged is a portrait of a brief and intimate friendship between two young men as they grapple with the questions: What happens when we lose parts of ourselves that we once thought essential to our identities? And, what happens when the stories we construct our identities around come into conflict with each other?
Spectral energy distributions of the BL Lac PKS 2155-304 from XMM-Newton
Creators: name: Bhagwan, Jai
name: Gupta, Alok C.
name: Papadakis, I. E.
name: Wiita, Paul J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We have used all 20 archival XMM-Newton observations of PKS 2155-304 with simultaneous X-ray and UV/optical data to study its long term flux and spectral variability. We find significant variations, in all bands, on time-scales of years with an rms amplitude of ~ 35-45 per cent, through the optical/UV variations are not correlated with those in the X-ray. We constructed SEDs that span more than three orders of magnitude in frequency and we first fitted them with a log-parabolic model; such models have been applied many times in the past for this, and other, blazars. These fits were poor, so we then examined combined power-law and log-parabolic fits that are improvements. These models indicate that the optical/UV and X-ray flux variations are mainly driven by model normalization variations, but the X-ray band flux is also affected by spectral variations, as parametrized with the model 'curvature' parameter, b. Overall, the energy at which the emitted power is maximum correlates positively with the total flux. As the spectrum shifts to higher frequencies, the spectral 'curvature' increase, in contrast to what is expected if a single log-parabolic model were an acceptable representation of the broad band SEDs. Our results suggest that the optical/UV and X-ray emissions in this source may arise from different lepton populations.
description: MNRAS in press (11 pages, 6 figures, 3 tables)
Polish device for FOCCoS/PFS slit system
Creators: name: de Oliveira, Antonio Cesar
name: de Oliveira, Ligia Souza
name: de Arruda, Marcio Vital
name: Marrara, Lucas Souza
name: Santos, Leandro Henrique dos
name: Ferreira, Décio
name: Santos, Jesulino Bispo dos
name: Vilaca, Rodrigo de Paiva
name: Rosa, Josimar Aparecido
name: Junior, Laerte Sodre
name: de Oliveira, Claudia Mendes
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The Fiber Optical Cable and Connector System, FOCCoS, for the Prime Focus Spectrograph, PFS, is responsible for transporting light from the Subaru Telescope focal plane to a set of four spectrographs. Each spectrograph will be fed by a convex curved slit with 616 optical fibers organized in a linear arrangement. The slit frontal surface is covered with a special dark composite, made with refractory oxide, which is able to sustain its properties with minimum quantities of abrasives during the polishing process; this stability is obtained This stability is obtained by the detachment of the refractory oxide nanoparticles, which then gently reinforce gently the polishing process and increase its the efficiency. The surface roughness measured in several samples after high performance polishing was about 0.01 microns. Furthermore, the time for obtaining a polished surface with this quality is about 10 times less than the time required for polishing a brass, glass or ceramic surface of the same size. In this paper, we describe the procedure developed for high quality polishing of this type of slit. The cylindrical polishing described here, uses cylindrical concave metal bases on which glass paper is based. The polishing process consists to use grid sequences of 30 microns, 12 microns, 9 microns, 5 microns, 3 microns, 1 micron and, finally, a colloidal silica on a chemical cloth. To obtain the maximum throughput, the surface of the fibers should be polished in such a way that they are optically flat and free from scratches. The optical fibers are inspected with a microscope at all stages of the polishing process to ensure high quality. The efficiency of the process may be improved by using a cylindrical concave composite base as a substrate suitable for diamond liquid solutions. Despite this process being completely by hand, the final result shows a very high quality.
Error estimates and blow-up analysis of a finite-element approximation for the parabolic-elliptic Keller-Segel system
Creators: name: Chen, Wenbin
name: Liu, Qianqian
name: Shen, Jie
Publisher: name: arXiv
Year: 2022
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: The Keller-Segel equations are widely used for describing chemotaxis in biology. Recently, a new fully discrete scheme for this model was proposed in [46], mass conservation, positivity and energy decay were proved for the proposed scheme, which are important properties of the original system. In this paper, we establish the error estimates of this scheme. Then, based on the error estimates, we derive the finite-time blowup of nonradial numerical solutions under some conditions on the mass and the moment of the initial data.
La leadership dell’Unione Europea nella politica climatica internazionale
Creators: name: Pasculli, Pietro
Publisher: name: Universita' degli Studi di Salerno
Year: 2022
Subjects: Clima-sicurezza
Leadership Unione Europea
Potere normativo e diplomatico

description: The negative effects of climate change and global warming may have, through direct and indirect effects, a profound impact on human and state security, often accelerating or exacerbating ongoing or latent vulnerabilities and instability. In this context, the European Union maintains a growing ambition both in addressing the security challenges resulting from climate change and in influencing the international environment, implemented over the last decade, an impressive collection of policy initiatives. The goal of the EU’s climate neutrality promoted by the European Green Deal (EGD) is not only an effort to transform the European economy but is to be regarded in all respects as a new foreign policy instrument that will also have consequences for relations between the EU and its partners. To meet these challenges, the EU should therefore strengthen its position of normative power by promoting cooperation on security and environmental issues in several areas.
Valley- and spin-filter in monolayer MoS$_2$
Creators: name: Majidi, Leyla
name: Zare, Moslem
name: Asgari, Reza
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We propose a valley- and spin-filter based on a normal/ferromagnetic/normal molybdenum disulfide (MoS$_2$) junction where the polarizations of the valley and the spin can be inverted by reversing the direction of the exchange field in the ferromagnetic region. By using a modified Dirac Hamiltonian and the scattering formalism, we find that the polarizations can be tuned by applying a gate voltage and changing the exchange field in the structure. We further demonstrate that the presence of a topological term ($β$) in the Hamiltonian results in an enhancement or a reduction of the charge conductance depending on the value of the exchange field.
description: 11 pages, 5 figures. arXiv admin note: text overlap with arXiv:1402.1840
Interpolation with the polynomial kernels
Creators: name: Elefante, Giacomo
name: Erb, Wolfgang
name: Marchetti, Francesco
name: Perracchione, Emma
name: Poggiali, Davide
name: Santin, Gabriele
Publisher: name: arXiv
Year: 2022
Subjects: subject: Numerical Analysis (math.NA)
subject: Machine Learning (cs.LG)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: The polynomial kernels are widely used in machine learning and they are one of the default choices to develop kernel-based classification and regression models. However, they are rarely used and considered in numerical analysis due to their lack of strict positive definiteness. In particular they do not enjoy the usual property of unisolvency for arbitrary point sets, which is one of the key properties used to build kernel-based interpolation methods. This paper is devoted to establish some initial results for the study of these kernels, and their related interpolation algorithms, in the context of approximation theory. We will first prove necessary and sufficient conditions on point sets which guarantee the existence and uniqueness of an interpolant. We will then study the Reproducing Kernel Hilbert Spaces (or native spaces) of these kernels and their norms, and provide inclusion relations between spaces corresponding to different kernel parameters. With these spaces at hand, it will be further possible to derive generic error estimates which apply to sufficiently smooth functions, thus escaping the native space. Finally, we will show how to employ an efficient stable algorithm to these kernels to obtain accurate interpolants, and we will test them in some numerical experiment. After this analysis several computational and theoretical aspects remain open, and we will outline possible further research directions in a concluding section. This work builds some bridges between kernel and polynomial interpolation, two topics to which the authors, to different extents, have been introduced under the supervision or through the work of Stefano De Marchi. For this reason, they wish to dedicate this work to him in the occasion of his 60th birthday.
Optical signature for distinguishing between Mott-Hubbard, intermediate and charge-transfer insulators
Creators: name: Bu, Xiangtian
name: Li, Yuanchang
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Determining the nature of band gaps in transition-metal compounds remains challenging. We present a first-principles study on electronic and optical properties of CoO using hybrid functional pseudopotentials. We show that optical absorption spectrum can provide a clear fingerprint to distinguish between Mott-Hubbard, intermediate and charge-transfer insulators. This discrimination is reflected by the qualitative difference in peak satellites due to unique interplay between $d$-$d$ and $p$-$d$ excitations, thus allowing identification from experimental data alone, unlike the existing methods that require additional theoretical interpretation. We conclude that the CoO is an intermediate, rather than a Mott-Hubbard insulator as is initially believed.
A simple proof of the completeness of APAL
Creators: name: Balbiani, Philippe
name: van Ditmarsch, Hans
Publisher: name: arXiv
Year: 2014
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: We provide a simple proof of the completeness of arbitrary public announcement logic APAL. The proof is an improvement over the proof found in the publication Knowable as Known after an Announcement.
Processi di qualità per una piattaforma Open Access Diamond
Creators: name: Galimberti, Paola
name: Filadoro, Rossella
name: Ferrante, Micol
Publisher: name: Zenodo
Year: 2023

description: Le riviste pubblicate sulla Milano University Press, la casa editrice dell'Università degli Studi di Milano, hanno aderito alla piattaforma OJS "Riviste Unimi" in periodi diversi a partire dal 2008.
I requisiti di qualità a cui rispondevano risultavano non omogenei perché modificati e aggiornati nel corso degli anni.
Tra il 2022 e il 2023 abbiamo elaborato delle strategie per rendere uniformi i requisiti della piattaforma, armonizzando il lavoro delle redazioni, che mantengono autonomia gestionale e organizzativa
A NEW APPROACH TO PREVENTING VICTIMOLOGICAL FRAUD IS RELEVANT
Creators: name: Isamiddinov, Sadirdin
Publisher: name: Zenodo
Year: 2023

description: In recent years, our country has placed special emphasis on strengthening property protection while bolstering the legal underpinnings of the economic framework. To this end, a series of targeted measures have been executed, resulting in a significant enhancement of this domain. Systematic efforts are now underway to amplify the efficacy of fraud prevention, as well as addressing crimes like theft, robbery, and intrusion, all the while advancing victimological prevention.
Writer Retrieval and Writer Identification in Greek Papyri
Creators: name: Christlein, Vincent
name: Marthot-Santaniello, Isabelle
name: Mayr, Martin
name: Nicolaou, Anguelos
name: Seuret, Mathias
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: The analysis of digitized historical manuscripts is typically addressed by paleographic experts. Writer identification refers to the classification of known writers while writer retrieval seeks to find the writer by means of image similarity in a dataset of images. While automatic writer identification/retrieval methods already provide promising results for many historical document types, papyri data is very challenging due to the fiber structures and severe artifacts. Thus, an important step for an improved writer identification is the preprocessing and feature sampling process. We investigate several methods and show that a good binarization is key to an improved writer identification in papyri writings. We focus mainly on writer retrieval using unsupervised feature methods based on traditional or self-supervised-based methods. It is, however, also comparable to the state of the art supervised deep learning-based method in the case of writer classification/re-identification.
Remote-excitation and remote-detection of single quantum dot using propagating surface plasmons on silver nanowire
Creators: name: Li, Qiang
name: Wei, Hong
name: Xu, Hong-Xing
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Using propagating surface plasmons (SPs) on silver nanowire (NW), we demonstrate that focused laser light at the end of silver nanowire can excite single quantum dot (QD) microns away from the excitation spot. The QD-NW interaction allows the excited QD convert part of its energy into propagating SPs which then can be detected at the remote sites. Simultaneous multi-QDs remote-excitation and detection are also realized. Furthermore, the tight confinement of propagating SPs around the NW surface enables selective excitation of QDs very close in space, which cannot be realized under conventional excitation condition. This remote excitation and detection approach may find applications in optical imaging and sensing of chemical and biological systems.
description: 10 pages, 4 figures, article
Plan Quality and Isotoxic Dose Escalation Investigation Using a 0.35T MR-Linac System in Ablative 5-Fraction Stereotactic Magnetic Resonance-Guided Radiation Therapy (MRgRT) for Primary Pancreatic Cancer
Creators: name: Hawranko, Robert
Publisher: name: VCU Libraries
Year: 2022

description: VCU Theses and Dissertations
Finding paths through narrow and wide trees
Creators: name: Binns, Stephen
name: Kjos-Hanssen, Bjørn
Publisher: name: arXiv
Year: 2014
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03D

description: We consider two axioms of second-order arithmetic. These axioms assert, in two different ways, that infinite but narrow binary trees always have infinite paths. We show that both axioms are strictly weaker than Weak König's Lemma, and incomparable in strength to the dual statement (WWKL) that wide binary trees have paths.
description: Contains an indication of an error in the published version, found by Laurent Bienvenu and Paul Shafer in 2012
Mehr als einfach Bücher. Mit xml und IIIF zu ungewöhnlichen Publikationen
Creators: name: Pellin, Elio
name: Stutzmann, Jan
Publisher: name: Zenodo
Year: 2023

description: Die Universitätsbibliothek Bern betreibt mit Bern Open Publishing Open-Access-Plattformen für begutachtete Zeitschriften (BOP Serials) und Bücher (BOP Books).Für Bern Open Publishing streben wir einen xml-first-Workflow an, für den wir den Herausgeber*inInnen verschiedene Möglichkeiten anbieten. Der xml-Workflow macht es möglich, die Nachnutzbarkeit, die Verbreitung sowie die Nachhaltigkeit der Publikationen zu verbessern. Neben Zeitschriften, Monografien oder Sammelbänden können auf den BOP-Plattformen auch nicht-alltägliche Publikationen erscheinen, die von den Forschenden gewünscht werden.
Anhand von zwei Publikationen in einem speziellen Format zeigen wir, wie ein solcher Workflow die Möglichkeit zur Nachnutzung und die Nachhaltigkeit verbessern kann.
Der Inkunabelkatalog, den wir auf BOP Books für das Zentrum Historische Bestände der UB Bern publizieren, soll die Sammlung der Historischen Drucke bis ins Jahr 1500 als Sammlung besser sichtbar machen. Die Inkunabeln der UB Bern sind zwar in swisscollections verzeichnet. Als Sammlung mit einer spezifischen Geschichte sind sie aber kaum erkennbar. Und nur bei volldigitalisierten Exemplaren sind Abbildungen eingebunden.Der Inkunabelkatolog auf BOP besteht aus einer wissenschaftlichen Einleitung und aus den kodikologischen Beschreibungen der frühen Drucke. Sie werden angereichert mit ausgewählten und hochaufgelösten Bildern, die über einen IIIF-Server angesteuert in hoher Auflösung angeschaut und nachgenutzt werden können.
Für den Katalogteil wurden die Marc 21-Dateien aus swisscollections/Alma in Jats-xml-Dateien konvertiert. Angezeigt wird der Katalog im html- Format.
In einem weiteren Katalog wird eine Sammlung von mongolischen Handschriften vollständig über den IIIf-Server zugänglich gemacht und mit den wissenschaftlichen Beschreibungen im Katalogteil auf BOP verbunden. Damit bietet BOP eine Alternative zu einer manuellen Vollkatalogisierung der Sammlung. Die bisher von den Forschenden als Findmittel erstellten Word-Dateien werden in xml-Dateien konvertiert und können so künftig mit überschaubarem Aufwand auch in anderer Form genutzt werden.
Linking the dust and chemical evolution: Taurus and Perseus -- New collisional rates for HCN, HNC, and their C, N, and H isotopologues
Creators: name: Navarro-Almaida, D.
name: Bop, C. T.
name: Lique, F.
name: Esplugues, G.
name: Rodríguez-Baras, M.
name: Kramer, C.
name: Romero, C. E.
name: Fuente, A.
name: Caselli, P.
name: Riviére-Marichalar, P.
name: Kirk, J. M.
name: Chacón-Tanarro, A.
name: Roueff, E.
name: Mroczkowski, T.
name: Bhandarkar, T.
name: Devlin, M.
name: Dicker, S.
name: Lowe, I.
name: Mason, B.
name: Sarazin, C. L.
name: Sievers, J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: HCN, HNC, and their isotopologues are ubiquitous molecules that can serve as chemical thermometers and evolutionary tracers to characterize star-forming regions. Despite their importance in carrying information that is vital to studies of the chemistry and evolution of star-forming regions, the collision rates of some of these molecules have not been available for rigorous studies in the past. We perform an up-to-date gas and dust chemical characterization of two different star-forming regions, TMC 1-C and NGC 1333-C7, using new collisional rates of HCN, HNC, and their isotopologues. We investigated the possible effects of the environment and stellar feedback in their chemistry and their evolution. With millimeter observations, we derived their column densities, the C and N isotopic fractions, the isomeric ratios, and the deuterium fractionation. The continuum data at 3 mm and 850 $μ$m allowed us to compute the emissivity spectral index and look for grain growth as an evolutionary tracer. The H$^{13}$CN/HN$^{13}$C ratio is anticorrelated with the deuterium fraction of HCN, thus it can readily serve as a proxy for the temperature. The spectral index $(β\sim 1.34-2.09)$ shows a tentative anticorrelation with the H$^{13}$CN/HN$^{13}$C ratio, suggesting grain growth in the evolved, hotter, and less deuterated sources. Unlike TMC 1-C, the south-to-north gradient in dust temperature and spectral index observed in NGC 1333-C7 suggests feedback from the main NGC 1333 cloud. With this up-to-date characterization of two star-forming regions, we found that the chemistry and the physical properties are tightly related. The dust temperature, deuterium fraction, and the spectral index are complementary evolutionary tracers. The large-scale environmental factors may dominate the chemistry and evolution in clustered star-forming regions.
description: 25 pages, 20 figures
Flux-free growth of large superconducting crystal of FeSe by traveling-solvent floating-zone technique
Creators: name: Ma, Mingwei
name: Yuan, Dongna
name: Wu, Yue
name: Zhou, Huaxue
name: Dong, Xiaoli
name: Zhou, Fang
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: A flux-free solution to the growth of large and composition homogeneous superconducting FeSe crystal is reported for the first time, which is based on the traveling-solvent floating-zone technique. The size of the crystal samples prepared by this approach is up to 15x6x2 mm3, being far bigger than previously reported in all dimensions, and the main phase of the crystals is of a single preferred orientation along the tetragonal (101) plane. X-ray diffraction analysis identifies the main phase to be the superconducting tetragonal \b{eta}-FeSe. The superconducting transition temperature (TC) is determined to be 9.4 K by AC magnetic susceptibility and electronic transport measurements. A nearly perfect diamagnetic shielding of -97% is observed, indicating a bulk superconductivity in the crystal sample.
description: 14 pages, 5 figures
Youth poverty after leaving parental home: does parental income matter?
Creators: name: Parisi, Lavinia
Publisher: name: Universita' degli Studi di Salerno
Year: 2007

description: Researchers have now started to look at youth poverty as distinct from child poverty. However none has focused on the intergenerational transmission of youth poverty in European countries. Using four countries for which there are data from the European Community Household Panel, this paper analyses the link between the poverty status of youth after they have left home and the economic status in the family of origin. We adopt a wider age range than in most studies on youth poverty, i.e. between 18 years old and 34. The sample is constitute by youth that have left home as part of a couple. The evidence shows that in Southern European countries there is a negative association between parental income and leaving home as part of a couple: the poorer the family of origin, the less likely is youth to leave home as a couple, so we use a sample selection model (Heckman Probit) to model the probability to be poor after leaving home, where the selection equation is the probability to leave home to live with a partner. We estimate the model separately for each country and also pooling the countries all together using some interactions. The main results show that there is no sample selection bias for any of the countries. The outcome is not different from the one obtained by fitting the Probit and selection models separately. There is a strong effect of the economic status of the family of origin on the probability to be poor in after they have left home, except for Greece. There are not great differences between Italy, Spain and Portugal, even if the intergenerational transmission of poverty seems to be stronger in Spain.
Fôlder Educativo: Sífilis e Tuberculose
Creators: name: Da Costa Xavier, Ana Beatriz
name: Da Rosa Ventura, Desirê
name: De Moura Lira, Ana Vitória
name: Da Silva Gama, Maria Eduarda
name: Da Silva, Millena Albuquerque
name: Da Silva, Ana Lúcia Abrahão
name: Rego, Vittória Thiengo Silveira Moreira
name: De Andrade, Delízia Pinheiro
name: De Assis, Caroline Nascimento
Publisher: name: Zenodo
Year: 2023
Subjects: Atenção Básica
Saúde Coletiva
Educação em Saúde
Tuberculose
Sífilis

description: Fôlder elaborado com instrumento de educação em saúde na Atenção Básica, produzido pelas graduandas de enfermagem da Escola de Enfermagem Aurora de Afonso Costa - Universidade Federal Fluminense.
Human body-sway steady-state responses to small amplitude tilts and translations of the support surface -- Effects of superposition of the two stimuli
Creators: name: Lippi, Vittorio
name: Maurer, Christoph
name: Mergner, Thomas
Publisher: name: arXiv
Year: 2022
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Applications (stat.AP)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences

description: Upright stance tested with a superposition of support surface tilt and translation. Steady state response is characterized by frequency response function. Interaction between two stimuli absent in most of the cases. Larger stimuli may create interaction. Simulations suggest that the observed effects can be due to joint stiffness modulation.
description: 10 pages, 7 figures
title: Αλλαγές στην ηθικοκοινωνική συμπεριφορά μαθητών γυμνασίου, μετά από πρόγραμμα παρέμβασης βασισμένο σε αρχές του fair play
titleType: AlternativeTitle
Creators: name: Νικολακάκη, Βασιλική
Publisher: name: University of Thessaly
Year: 2007
Subjects: subject: ΦΥΣΙΚΗ ΑΓΩΓΗ ΚΑΙ ΕΚΠΑΙΔΕΥΣΗ -- ΨΥΧΟΛΟΓΙΑ
subject: ΑΘΛΗΤΙΣΜΟΣ ΚΑΙ ΗΘΙΚΗ

description: Σκοπός της παρούσας έρευνας ήταν να εξετάσει την επίδραση ενός παρεμβατικού προγράμματος βασισμένο σε αρχές του fair play πάνω στην ηθικοκοινωνική συμπεριφορά μαθητών Α' γυμνασίου. Το πρόγραμμα αφορούσε δύο τμήματα με 28 μαθητές το καθένα και ήταν διάρκειας έξι εβδομάδων. Στοχευμένα, επιδιώχθηκε η καλλιέργεια της συνεργασίας, του σεβασμού σε κανόνες και σε συμπαίκτες καθώς επίσης και η αποδοχή της διαφορετικότητας. Για τη συλλογή των δεδομένων χρησιμοποιήθηκαν ως παρατηρητές οκτώ μαθητές οι οποίοι εκπαιδεύτηκαν στην παρατήρηση και καταγραφή συγκεκριμένων συμπεριφορών. Αφού εξασφαλίστηκε η αξιοπιστία τους (interater -intrarater reliability) κατέγραφαν σε ειδικό φύλλο παρατήρησης τη συμπεριφορά 8 «μαθητών στόχων». Η συλλογή δεδομένων αφορούσε τη συμπεριφορά των μαθητών στις εξής φάσεις: α) πριν την έναρξη της παρέμβασης, (δύο διαδοχικές μετρήσεις) β) κατά τη διάρκεια του παρεμβατικού προγράμματος (ενδιάμεση μέτρηση), γ) με τη λήξη του προγράμματος (δύο διαδοχικές μετρήσεις), και τέλος επτά εβδομάδες μετά τη λήξη του προγράμματος (μέτρηση διατήρησης). Οι εξαρτημένες μεταβλητές σχετίζονταν με τις παρακάτω κατηγορίες: α) «Δώσε τον καλύτερό σου εαυτό» στο μάθημα β) «βοηθητικές- ενθαρρυντικές συμπεριφορές» και γ) «βλαπτικές συμπεριφορές». Μετά την ανάλυση των συμπεριφορών κατ’ άτομο προέκυψε: Πριν την παρέμβαση, υψηλή συχνότητα αρνητικών συμπεριφορών στην κατηγορία «Δώσε τον καλύτερό σου εαυτό», υψηλή συχνότητα «βλαπτικών συμπεριφορών» και παντελής έλλειψη «βοηθητικών-ενθαρρυντικών συμπεριφορών». Με το τέλος της παρέμβασης, όλες οι προαναφερόμενες συμπεριφορές άλλαξαν θετικά. Η μέτρηση διατήρησης επτά εβδομάδες μετά την παρέμβαση, έδειξε πτώση όσων κατακτήθηκαν κατά το παρεμβατικό στάδιο. Παρ’ όλα όμως αυτά οι αρνητικές και βλαπτικές συμπεριφορές ήταν λιγότερες, οι δε βοηθητικές περισσότερες από αυτές που καταγράφηκαν πριν ξεκινήσει το παρεμβατικό πρόγραμμα. Συμπερασματικά, η καλλιέργεια ηθικοκοινωνικών αρχών μπορεί να αποτελεί παράλληλο και διαρκή στόχο σε κατάλληλα διαμορφωμένο περιβάλλον στο μάθημα της Φυσικής Αγωγής.
Imaging-spectroscopy of a band-split type II solar radio burst with the Murchison Widefield Array
Creators: name: Bhunia, Shilpi
name: Carley, Eoin P.
name: Oberoi, Divya
name: Gallagher, Peter T.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Type II solar radio bursts are caused by magnetohydrodynamics (MHD) shocks driven by solar eruptive events such as Coronal Mass Ejections (CMEs). Often both fundamental and harmonic bands of type II bursts are split into sub-bands, generally believed to be coming from upstream and downstream regions of the shock; however this explanation remains unconfirmed. Here we present combined results from imaging analysis of type II radio burst band-splitting and other fine structures, observed by the Murchison Widefield Array (MWA) and extreme ultraviolet observations from Solar Dynamics Observatory (SDO)/Atmospheric Imaging Assembly (AIA) on 2014-Sep-28. The MWA provides imaging-spectroscopy in the range of 80-300 MHz with a time resolution of 0.5 s and frequency resolution of 40 kHz. Our analysis shows that the burst was caused by a piston-driven shock with a driver speed of $\sim$112 km s$^{-1}$ and shock speed of $\sim$580 km s$^{-1}$. We provide rare evidence that band-splitting is caused by emission from multiple parts of the shock (as opposed to the upstream/downstream hypothesis). We also examine the small-scale motion of type II fine structure radio sources in MWA images. We suggest that this small-scale motion may arise due to radio propagation effects from coronal turbulence, and not because of the physical motion of the shock location. We present a novel technique that uses imaging spectroscopy to directly determine the effective length scale of turbulent density perturbations, which is found to be 1 - 2 Mm. The study of the systematic and small-scale motion of fine structures may therefore provide a measure of turbulence in different regions of the shock and corona.
description: 10 pages, 8 figures, Astronomy & Astrophysics journal (accepted)