cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Fluctuation-dissipation relations for thermodynamic distillation processes
Creators: name: Biswas, Tanmoy
name: Junior, A. de Oliveira
name: Horodecki, Michał
name: Korzekwa, Kamil
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The fluctuation-dissipation theorem is a fundamental result in statistical physics that establishes a connection between the response of a system subject to a perturbation and the fluctuations associated with observables in equilibrium. Here we derive its version within a resource-theoretic framework, where one investigates optimal quantum state transitions under thermodynamic constraints. More precisely, we first characterise optimal thermodynamic distillation processes, and then prove a relation between the amount of free energy dissipated in such processes and the free energy fluctuations of the initial state of the system. Our results apply to initial states given by either asymptotically many identical pure systems or arbitrary number of independent energy-incoherent systems, and allow not only for a state transformation, but also for the change of Hamiltonian. The fluctuation-dissipation relations we derive enable us to find the optimal performance of thermodynamic protocols such as work extraction, information erasure and thermodynamically-free communication, up to second-order asymptotics in the number $N$ of processed systems. We thus provide a first rigorous analysis of these thermodynamic protocols for quantum states with coherence between different energy eigenstates in the intermediate regime of large but finite $N$.
description: 31 pages, 7 figures. Published version
Lettre sur le nom de la planete Herschel, adressee à Messieurs les Auteurs du Journal des Savans
Creators: name: Lalande, Joseph Jérôme Le Français de
Publisher: name: [s.n.]
Year: 1788

description: par M. [Joseph Jérôme Le François] de la Lande
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire Febr. 2015 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis, und Original
Notizen über Louis Bochard
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1773
Subjects: Bochard, Louis

description: von Unbekannt
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire Febr. 2015 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis, Katalog "Neuzeitliche Handschriften" und Original
Conversion of electromagnetic and gravitational waves by a charged black hole
Creators: name: Hadj, Mohamed Ould El
name: Dolan, Sam R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In a strong electromagnetic field, gravitational waves are converted into electromagnetic waves of the same frequency, and vice versa. Here we calculate the scattering and conversion cross sections for a planar wave impinging upon a Reissner-Nordström black hole in vacuum, using the partial-wave expansion and numerical methods. We show that, at long wavelengths, the conversion cross section matches that computed by Feynman-diagram techniques. At short wavelengths, the essential features are captured by a geometric-optics approximation. We demonstrate that the converted flux can exceed the scattered flux at large scattering angles, for highly-charged black holes. In the short-wavelength regime, the conversion effect may be understood in terms of a phase that accumulates along a ray. We compute the scattering angle for which the converted and scattered fluxes are equal, as a function of charge-to-mass ratio. We show that this scattering angle approaches $90$ degrees in the extremal limit.
description: 20 pages, 7 figures. Added a proof that the angle for half-conversion is 90 degrees in the extremal case Q=M
Brief an [Johann III] Bernoulli
Creators: name: Lalande, Joseph Jérôme Le Français de
Publisher: name: [s.n.]
Year: 1769

description: Bl.89v+90r: Berechnungen
description: von [Joseph Jérôme Le François de] Lalande
description: Mit Oblate
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
Adversarial Detection Avoidance Attacks: Evaluating the robustness of perceptual hashing-based client-side scanning
Creators: name: Jain, Shubham
name: Cretu, Ana-Maria
name: de Montjoye, Yves-Alexandre
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: End-to-end encryption (E2EE) by messaging platforms enable people to securely and privately communicate with one another. Its widespread adoption however raised concerns that illegal content might now be shared undetected. Following the global pushback against key escrow systems, client-side scanning based on perceptual hashing has been recently proposed by tech companies, governments and researchers to detect illegal content in E2EE communications. We here propose the first framework to evaluate the robustness of perceptual hashing-based client-side scanning to detection avoidance attacks and show current systems to not be robust. More specifically, we propose three adversarial attacks--a general black-box attack and two white-box attacks for discrete cosine transform-based algorithms--against perceptual hashing algorithms. In a large-scale evaluation, we show perceptual hashing-based client-side scanning mechanisms to be highly vulnerable to detection avoidance attacks in a black-box setting, with more than 99.9% of images successfully attacked while preserving the content of the image. We furthermore show our attack to generate diverse perturbations, strongly suggesting that straightforward mitigation strategies would be ineffective. Finally, we show that the larger thresholds necessary to make the attack harder would probably require more than one billion images to be flagged and decrypted daily, raising strong privacy concerns. Taken together, our results shed serious doubts on the robustness of perceptual hashing-based client-side scanning mechanisms currently proposed by governments, organizations, and researchers around the world.
description: This is a revised version of the paper published at USENIX Security 2022. We now use a semi-automated procedure to remove duplicates from the ImageNet dataset
Brief an [Johann III] Bernoulli
Creators: name: Lalande, Joseph Jérôme Le Français de
Publisher: name: [s.n.]
Year: 1770

description: von [Joseph Jérôme Le François de] La Lande
description: Mit rotem Siegel
description: PS und Unterschrift autograph
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
Approximate decoherence free subspaces for distributed sensing
Creators: name: Hamann, Arne
name: Sekatski, Pavel
name: Dür, Wolfgang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider the sensing of scalar valued fields with specific spatial dependence using a network of sensors, e.g. multiple atoms located at different positions within a trap. We show how to harness the spatial correlations to sense only a specific signal, and be insensitive to others at different positions or with unequal spatial dependence by constructing a decoherence-free subspace for noise sources at fixed, known positions. This can be extended to noise sources lying on certain surfaces, where we encounter a connection to mirror charges and equipotential surfaces in classical electrostatics. For general situations, we introduce the notion of an approximate decoherence-free subspace, where noise for all sources within some volume is significantly suppressed, at the cost of reducing the signal strength in a controlled way. We show that one can use this approach to maintain Heisenberg-scaling over long times and for a large number of sensors, despite the presence of multiple noise sources in large volumes. We introduce an efficient formalism to construct internal states and sensor configurations, and apply it to several examples to demonstrate the usefulness and wide applicability of our approach.
description: 20 pages, 11 figures
Attenti al lupo nella nebulosa
Creators: Claudia Mignone
Publisher: name: Media Inaf
Year: 2024

Per celebrare Halloween, l’Eso ha pubblicato una nuova, dettagliatissima immagine di una nebulosa oscura dalla forma simile a quella di un lupo. Soprannominata per l’occasione Nebulosa del lupo oscuro, è stata immortalata dal telescopio italiano Vst, gestito dall'Istituto nazionale di astrofisica presso l'osservatorio Eso di Paranal, in Cile
Da Firenze allo spazio, con due ambasciatori
Creators: Rossella Spiga
Publisher: name: Media Inaf
Year: 2024

Sofia Randich e Pietro Ubertini, dell’Istituto nazionale di astrofisica, sono stati nominati oggi “Ambasciatori della Città di Firenze” per avere promosso lo svolgimento della 44ma assemblea generale del Comitato internazionale sullo spazio Cospar, che si terrà a Firenze dall’1 al 9 agosto 2026
Primi fotoni per il Vera Rubin
Creators: Valentina Guglielmo
Publisher: name: Media Inaf
Year: 2024

Giovedì 24 ottobre, in Cile, il Vera Rubin ha aperto per la prima volta gli occhi al cielo e ha preso la sua prima immagine con una posa di trenta secondi: un test sulla commissioning camera che ha confermato la capacità di puntamento e di messa a fuoco del telescopio. L’Istituto nazionale di astrofisica ha partecipato al traguardo con due inviati sul posto, Gabriele Rodeghiero e Luca Rosignoli
The Catcher in the Strewn Field
Creators: Marco Malaspina
Publisher: name: Media Inaf
Year: 2024

Calcolare l’area di dispersione dei frammenti di una meteorite anche senza reti di camere all-sky, adottando un semplice modello di frammentazione e partendo dall’orbita dell’asteroide. Dunque in anticipo, fino a 24 ore prima dell'impatto, così da potersi eventualmente recare sul posto ad attenderne la caduta: stando a uno studio guidato da Albino Carbognani dell’Inaf è possibile. Lo abbiamo intervistato
Brief an [Johann III] Bernoulli
Creators: name: Lalande, Joseph Jérôme Le Français de
Publisher: name: [s.n.]
Year: 1768

description: von [Joseph Jérôme Le François] Dela Lande
description: Unterschrift autograph
description: Mit Spuren von einer roten Oblate
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
Un oceano sotterraneo per Miranda
Creators: Giuseppe Fiasconaro
Publisher: name: Media Inaf
Year: 2024

Miranda, la più piccola delle lune principali di Urano, sotto la sua pelle ghiacciata potrebbe aver avuto – e forse avere ancora – un vasto oceano d’acqua liquida. A suggerirlo sono i risultati di simulazioni condotte, partendo dalle immagini di Voyager 2, da un team di scienziati guidati dalla Johns Hopkins University. Tutti i dettagli su The Planetary Science Journal
Realizing coherently convertible dual-type qubits with the same ion species
Creators: name: Yang, H. -X.
name: Ma, J. -Y.
name: Wu, Y. -K.
name: Wang, Y.
name: Cao, M. -M.
name: Guo, W. -X.
name: Huang, Y. -Y.
name: Feng, L.
name: Zhou, Z. -C.
name: Duan, L. -M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Trapped ions constitute one of the most promising systems for implementing quantum computing and networking. For large-scale ion-trap-based quantum computers and networks, it is critical to have two types of qubits, one for computation and storage, while the other for auxiliary operations like runtime qubit detection, sympathetic cooling, and repetitive entanglement generation through photon links. Dual-type qubits have previously been realized in hybrid systems using two ion species, which, however, introduces significant experimental challenges for laser setup, gate operations as well as the control of the fraction and positioning of each qubit type within an ion crystal. Here we solve these problems by implementing two coherently-convertible qubit types using the same ion species. We encode the qubits into two pairs of clock states of the 171Yb+ ions, and achieve fast and high-fidelity conversion between the two types using narrow-band lasers. We further demonstrate that operations on one qubit type, including sympathetic laser cooling, gates and qubit detection, have crosstalk errors less than 0.03% on the other type, well below the error threshold for fault-tolerant quantum computing. Our work showcases the feasibility and advantages of using coherently convertible dual-type qubits with the same ion species for future large-scale quantum computing and networking.
description: 9 pages, 7 figures
Antichi quasar solitari dalle origini oscure
Creators: Maura Sandri
Publisher: name: Media Inaf
Year: 2024

Un gruppo di astronomi ha analizzato le immagini di cinque antichi quasar riprese da Jwst tra agosto 2022 e giugno 2023. Alcuni di questi sembrano avere pochi vicini cosmici – sono quasar solitari, come li hanno definiti – e per questo stanno sollevando domande su come siano emersi per la prima volta più di 13 miliardi di anni fa. Tutti i dettagli su The Astrophysical Journal
One-loop matrix elements of effective superstring interactions: $α'$-expanding loop integrands
Creators: name: Edison, Alex
name: Guillen, Max
name: Johansson, Henrik
name: Schlotterer, Oliver
name: Teng, Fei
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In the low-energy effective action of string theories, non-abelian gauge interactions and supergravity are augmented by infinite towers of higher-mass-dimension operators. We propose a new method to construct one-loop matrix elements with insertions of operators $D^{2k} F^n$ and $D^{2k} R^n$ in the tree-level effective action of type-I and type-II superstrings. Inspired by ambitwistor string theories, our method is based on forward limits of moduli-space integrals using string tree-level amplitudes with two extra points, expanded in powers of the inverse string tension $α'$. Similar to one-loop ambitwistor computations, intermediate steps feature non-standard linearized Feynman propagators which eventually recombine to conventional quadratic propagators. With linearized propagators the loop integrand of the matrix elements obey one-loop versions of the monodromy and KLT relations. We express a variety of four- and five-point examples in terms of quadratic propagators and formulate a criterion on the underlying genus-one correlation functions that should make this recombination possible at all orders in $α'$. The ultraviolet divergences of the one-loop matrix elements are crosschecked against the non-separating degeneration of genus-one integrals in string amplitudes. Conversely, our results can be used as a constructive method to determine degenerations of elliptic multiple zeta values and modular graph forms at arbitrary weight.
description: 71 pages plus appendices and ancillary files; v2: matching published version; v3: Minor corrections in (4.29), (4.49), (4.50), (7.3) and (C.3)
Solid-state Janus nanoprecipitation enables amorphous-like heat conduction in crystalline Mg3Sb2-based thermoelectric materials
Creators: name: Shu, Rui
name: Han, Zhijia
name: Elsukova, Anna
name: Zhu, Yongbin
name: Qin, Peng
name: Jiang, Feng
name: Lu, Jun
name: Persson, Per O. Å.
name: Palisaitis, Justinas
name: Febvrier, Arnaud le
name: Zhang, Wenqing
name: Cojocaru-Mirédin, Oana
name: Yu, Yuan
name: Eklund, Per
name: Liu, Weishu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Solid-state precipitation can be used to tailor materials properties, ranging from ferromagnets and catalysts to mechanical strengthening and energy storage. Thermoelectric properties can be modified by precipitation to enhance phonon scattering while retaining charge-carrier transmission. Here, we uncover unconventional dual Janus-type nanoprecipitates in Mg3Sb1.5Bi0.5 formed by side-by-side Bi- and Ge-rich appendages, in contrast to separate nanoprecipitate formation. These Janus nanoprecipitates result from local co-melting of Bi and Ge during sintering, enabling an amorphous-like lattice thermal conductivity. A precipitate size effect on phonon scattering is observed due to the balance between alloy-disorder and nanoprecipitate scattering. The thermoelectric figure-of-merit ZT reaches 0.6 near room temperature and 1.6 at 773 K. The Janus nanoprecipitation can be introduced into other materials and may act as a general property-tailoring mechanism.
Torturando Ariel
Creators: Redazione Media Inaf
Publisher: name: Media Inaf
Year: 2024

Ha avuto inizio presso gli stabilimenti di Airbus, in Francia, la campagna di test meccanici del modello strutturale di Ariel, il telescopio spaziale dell‘Esa progettato per studiare le atmosfere di oltre mille pianeti extrasolari. L’obiettivo è quello di completare questa prima serie di test entro la fine dell’anno
Resto di supernova a dente di leone in 3D
Creators: Maura Sandri
Publisher: name: Media Inaf
Year: 2024

Grazie al Keck Cosmic Web Imager è stato possibile studiare nel dettaglio il resto di supernova associato a Sn 1181. Servendosi dello spettrografo, i ricercatori hanno potuto creare una mappa 3D dettagliata della nebulosa e dei suoi strani filamenti. Inoltre, hanno potuto dimostrare che il materiale dei filamenti viaggiava a circa mille chilometri al secondo. Tutti i dettagli su ApJ Letters
Future Physics Prospects with the CMS Detector at the High-Luminosity LHC
Creators: name: Henderson, Conor
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The High-Luminosity Large Hadron Collider is expected to deliver up to 3000 fb$^{-1}$ of proton-proton collisions at 14 TeV center-of-mass energy. We present prospects for selected heavy-ion, Standard Model and Higgs sector measurements with the CMS detector at the HL-LHC, and discuss potential sensitivity to several beyond-Standard Model new physics scenarios.
description: Contribution to the proceedings of DIS 2021, XXVIII International Workshop on Deep-Inelastic Scattering and Related Subjects; to be published in SciPost Physics Proceedings
Un mega idrocarburo nella nube del Toro
Creators: Giuseppe Fiasconaro
Publisher: name: Media Inaf
Year: 2024

È una delle più grandi molecole di idrocarburi policiclici aromatici che siano mai state rilevate nello spazio, la più grande usando osservazioni radioastronomiche. A scoprirla, all’interno della nube molecolare Tmc-1, è stato un team di ricercatori del Mit utilizzando il Green Bank Observatory. Parliamo dell’1-cianopirene: secondo gli scienziati, potrebbe essere responsabile del trasporto di parte del carbonio fornito dalle nubi molecolari ai giovani sistemi planetari
Exclusive emissions of rho-mesons and the unintegrated gluon distribution
Creators: name: Bolognino, Andrèe Dafne
name: Celiberto, Francesco Giovanni
name: Ivanov, Dmitry Yu.
name: Papa, Alessandro
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Exclusive emissions of vector mesons in forward directions of rapidity offer us a faultless chance to probe the proton structure at small-$x$. A high-energy factorization formula is established within BFKL, given as the convolution of an impact factor depicting the forward-meson emission and of an unintegrated gluon distribution (UGD) driving the gluon evolution at small-$x$. As a nonperturbative quantity, the UGD is not well known and several models for it exist. We present recent progresses on the study of the exclusive forward $ρ$-meson leptoproduction at HERA and EIC energies, showing how osbervables sensitive to different polarization states of the $ρ$-particle act as discriminators for the existing UGD models.
description: 8 pages, 1 figure, contribution to the proceedings of the XXVIII International Workshop on Deep Inelastic Scattering and Related Subjects (DIS2021), Stony Brook, New York, USA, 12-16 April, 2021, version accepted for publication on SciPost Physics Proceedings
Brief an [Johann III] Bernoulli
Creators: name: Lalande, Joseph Jérôme Le Français de
Publisher: name: [s.n.]
Year: 1770

description: von [Joseph Jérôme Le François] Dela Lande
description: Mit rotem Siegel
description: Textverlust am unteren Seitenrand, betrifft auch die Unterschrift, die nicht mehr komplett zu entziffern ist.
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
High-energy resummation in inclusive hadroproduction of Higgs plus jet
Creators: name: Celiberto, Francesco Giovanni
name: Ivanov, Dmitry Yu.
name: Mohammed, Mohammed. M. A.
name: Papa, Alessandro
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Using the standard Balitsky-Fadin-Kuraev-Lipatov (BFKL) approach, with partial inclusion of next-to-leading order effects, we propose the inclusive hadroproduction of a Higgs boson and of a jet, featuring large transverse momenta and well separated in rapidity, as a new channel to probe the BFKL dynamics. Predictions are presented for cross-sections and azimuthal angle correlations in different kinematics configurations for the final-state transverse momenta. We find that the large energy scales provided by the emission of a Higgs boson stabilize the BFKL series.
description: Submission to SciPost
Starship manda in orbita la competizione
Creators: Patrizia Caraveo
Publisher: name: Media Inaf
Year: 2024

Con i due lanci di Hera ed Europa Clipper e il successo del test del nuovo lanciatore Starship, il divario fra SpaceX e la concorrenza si fa sempre più ampio. Ne parla l’astrofisica Patrizia Caraveo in questo commento pubblicato la settimana scorsa sul Sole24Ore, che riprendiamo qui con il suo consenso
On the closedness and geometry of tensor network state sets
Creators: name: Barthel, Thomas
name: Lu, Jianfeng
name: Friesecke, Gero
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 15A69, 81V70, 15A21, 65K10, 14J81

description: Tensor network states (TNS) are a powerful approach for the study of strongly correlated quantum matter. The curse of dimensionality is addressed by parametrizing the many-body state in terms of a network of partially contracted tensors. These tensors form a substantially reduced set of effective degrees of freedom. In practical algorithms, functionals like energy expectation values or overlaps are optimized over certain sets of TNS. Concerning algorithmic stability, it is important whether the considered sets are closed because, otherwise, the algorithms may approach a boundary point that is outside the TNS set and tensor elements diverge. We discuss the closedness and geometries of TNS sets, and we propose regularizations for optimization problems on non-closed TNS sets. We show that sets of matrix product states (MPS) with open boundary conditions, tree tensor network states (TTNS), and the multiscale entanglement renormalization ansatz (MERA) are always closed, whereas sets of translation-invariant MPS with periodic boundary conditions (PBC), heterogeneous MPS with PBC, and projected entangled-pair states (PEPS) are generally not closed. The latter is done using explicit examples like the W state, states that we call two-domain states, and fine-grained versions thereof.
description: 23 pages, 10 figures; minor improvements, added references; published version; This article belongs to the themed collection "Mathematical Physics and Numerical Simulation of Many-Particle Systems", V. Bach and L. Delle Site (eds.), Letters in Mathematical Physics
Criticality Metrics for Automated Driving: A Review and Suitability Analysis of the State of the Art
Creators: name: Westhofen, Lukas
name: Neurohr, Christian
name: Koopmann, Tjark
name: Butz, Martin
name: Schütt, Barbara
name: Utesch, Fabian
name: Kramer, Birte
name: Gutenkunst, Christian
name: Böde, Eckard
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: The large-scale deployment of automated vehicles on public roads has the potential to vastly change the transportation modalities of today's society. Although this pursuit has been initiated decades ago, there still exist open challenges in reliably ensuring that such vehicles operate safely in open contexts. While functional safety is a well-established concept, the question of measuring the behavioral safety of a vehicle remains subject to research. One way to both objectively and computationally analyze traffic conflicts is the development and utilization of so-called criticality metrics. Contemporary approaches have leveraged the potential of criticality metrics in various applications related to automated driving, e.g. for computationally assessing the dynamic risk or filtering large data sets to build scenario catalogs. As a prerequisite to systematically choose adequate criticality metrics for such applications, we extensively review the state of the art of criticality metrics, their properties, and their applications in the context of automated driving. Based on this review, we propose a suitability analysis as a methodical tool to be used by practitioners. Both the proposed method and the state of the art review can then be harnessed to select well-suited measurement tools that cover an application's requirements, as demonstrated by an exemplary execution of the analysis. Ultimately, efficient, valid, and reliable measurements of an automated vehicle's safety performance are a key requirement for demonstrating its trustworthiness.
Plethysms of Chromatic and Tutte Symmetric Functions
Creators: name: Crew, Logan
name: Spirkl, Sophie
Publisher: name: arXiv
Year: 2021
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05E05, 05C15

description: Plethysm is a fundamental operation in symmetric function theory, derived directly from its connection with representation theory. However, it does not admit a simple combinatorial interpretation, and finding coefficients of Schur function plethysms is a major open question. In this paper, we introduce a graph-theoretic interpretation for any plethysm based on the chromatic symmetric function. We use this interpretation to give simple proofs of new and previously known plethystic identities, as well as chromatic symmetric function identities.
description: Final version of manuscript; published with Electronic Journal of Combinatorics
Un prototipo dorato per le onde gravitazionali
Creators: Valentina Guglielmo
Publisher: name: Media Inaf
Year: 2024

Pubblicate le prime immagini del prototipo in scala reale realizzato dalla Nasa di uno dei sei telescopi della missione dell'Esa Lisa. Si tratta di un osservatorio spaziale per onde gravitazionali costruito come un enorme interferometro laser a forma di triangolo equilatero, con sei piccoli telescopi disposti a coppie sui vertici
Improving hepatitis C screening in minority baby boomers in the primary care setting
Creators: name: Asiedu, Rita
Publisher: name: No Publisher Supplied
Year: 2020

description: Introduction: In the US, over 3.2 million people are living with Hepatitis C virus (HCV) infection with 75% of them born between 1945-1965 (baby boomers). The Center for Disease Control (CDC) and the US Preventive Services Task Force (USPSTF) has recommended a one-time HCV screening for baby boomers. However, few data exist on the implementation of this recommendation in primary care settings. Purpose: This study sought to determine whether provider educational intervention can improve HCV screening among minority baby boomers in the primary care setting.Method: A total of 56 charts of minority baby boomers were randomly reviewed before and after the intervention; the (CDC) and the USPSTF guidelines for HCV screening in baby boomers, prevalence rate and centers for Medicaid and Medicare reimbursement for HCV screening was presented in a power point for providers. Descriptive statistics and chi-square tests were used. Results: Participants ages ranged from 54-74 years old. The percentage of charts screened for HCV prior to the educational intervention was 0%. Out of these 28 charts reviewed after the intervention 17 were screened for antibody for HCV. There was an increase in HCV antibody screening among minority baby boomers after the educational intervention for providers (X2 = 23.73, p < 0.01). Screening increased by 60.7% among all minority baby boomers; Screening in African American males increased by 14.29%; 14.29% increase in African American females; 10.71% increase in Hispanic males and 21.43% increase in Hispanic Females respectively.Implications: Improve HCV screening among baby boomers in the primary care setting by increasing provider's knowledge on HCV screening guidelines. Increase HCV screening education in baby boomers to enable them to start HCV screening conversation with their providers
Moral-hazard-free insurance: mean-variance premium principle and rank-dependent utility theory
Creators: name: Xu, Zuo Quan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Risk Management (q-fin.RM)
subject: Optimization and Control (math.OC)
subject: Probability (math.PR)
subject: Mathematical Finance (q-fin.MF)
subject: FOS: Economics and business
subject: FOS: Mathematics
subject: 91G05,

description: This paper investigates a Pareto optimal insurance problem, where the insured maximizes her rank-dependent utility preference and the insurer is risk neutral and employs the mean-variance premium principle. To eliminate potential moral hazard issues, we only consider the so-called moral-hazard-free insurance contracts that obey the incentive compatibility constraint. The insurance problem is first formulated as a non-concave maximization problem involving Choquet expectation, then turned into a concave quantile optimization problem and finally solved by the calculus of variations method. The optimal contract is expressed by a second-order ordinary integro-differential equation with nonlocal operator. An effective numerical method is proposed to compute the optimal contract assuming the probability weighting function has a density. Also, we provide an example which is analytically solved.
Osservatori astronomici per una transizione verde
Creators: Rossella Spiga
Publisher: name: Media Inaf
Year: 2024

In che modo i sistemi energetici per gli osservatori astronomici possono diventare rinnovabili e inclusivi? Risponde a questa domanda uno studio, pubblicato su Nature Sustainability e guidato dall'Università di Oslo, che suggerisce un modello virtuoso di comunità energetica e contribuisce ad aprire la strada a uno sviluppo win-win dei nuovi progetti di infrastrutture astronomiche
Non si finisce mai di conoscere un buco nero
Creators: Valentina Guglielmo
Publisher: name: Media Inaf
Year: 2024

La prima scoperta di un buco nero triplo viene da una vecchia conoscenza: il buco nero V404 Cygni, a circa ottomila anni luce dalla Terra. Le due compagne sono stelle, la più vicina (e già nota) delle quali sta lentamente cedendo massa al buco nero e spiraleggiando sempre più vicino ad esso; la seconda, invece, nuova scoperta del sistema, impiega 70mila anni a compiere la sua orbita
Sensitive Data Toolkit for Researchers Part 1: Glossary of Terms for Sensitive Data used for Research Purposes
Creators: name: Sensitive Data Expert Group
Publisher: name: Zenodo
Year: 2020

description: The Sensitive Data Expert Group of the Portage Network has create a suite of tools for Canadian researchers. These tools have been created to help researchers understand how research data is involved in the research ethics process, and to address the evolution of research data management (RDM) practices such as data sharing and deposit in the context of existing research ethics frameworks. This tool, a Glossary of Terms for Sensitive Data used for Research Purposes, is intended to provide definitions for a number of common terms used in the discussion of the management of sensitive data in the Canadian context.
Brief an [Johann III] Bernoulli
Creators: name: Lalande, Joseph Jérôme Le Français de
Publisher: name: [s.n.]
Year: 1770

description: von [Joseph Jérôme Le François] Dela Lande
description: Mit Spuren von einer roten Oblate
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
Vecchia dentro, giovane fuori
Creators: Federica Loiacono
Publisher: name: Media Inaf
Year: 2024

Scoperta la più antica evidenza della modalità di crescita dall’interno verso l’esterno ("inside-out growth") in una galassia settecento milioni di anni dopo il Big Bang. A differenza delle zone centrali, caratterizzate da stelle più antiche, le regioni esterne della galassia sono ricche di stelle giovani e ospitano intensa attività di formazione stellare. La scoperta è stata realizzata con Webb dall’Università di Cambridge
Giganti ghiacciati
Creators: Rossella Spiga
Publisher: name: Media Inaf
Year: 2024

“Giganti ghiacciati. Sulle orme delle sonde Voyager alla scoperta di Urano e Nettuno”, di Luca Nardi e Fabio Nottebella, è tra i dieci libri da non perdere nel 2024 tra le pubblicazioni divulgative di scienze matematiche, fisiche a naturali, secondo la giuria del Premio nazionale di divulgazione scientifica Giancarlo Dosi. È edito da Dedalo (2023) e fa parte della collana ScienzaFacile. La  prefazione è a cura di Piero Bianucci
Towards Collaborative Simultaneous Localization and Mapping: a Survey of the Current Research Landscape
Creators: name: Lajoie, Pierre-Yves
name: Ramtoula, Benjamin
name: Wu, Fang
name: Beltrame, Giovanni
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Motivated by the tremendous progress we witnessed in recent years, this paper presents a survey of the scientific literature on the topic of Collaborative Simultaneous Localization and Mapping (C-SLAM), also known as multi-robot SLAM. With fleets of self-driving cars on the horizon and the rise of multi-robot systems in industrial applications, we believe that Collaborative SLAM will soon become a cornerstone of future robotic applications. In this survey, we introduce the basic concepts of C-SLAM and present a thorough literature review. We also outline the major challenges and limitations of C-SLAM in terms of robustness, communication, and resource management. We conclude by exploring the area's current trends and promising research avenues.
description: 44 pages, 3 figures
Concorso “A Gianni Rodari”, il tema è la Luna
Creators: Federica Duras
Publisher: name: Media Inaf
Year: 2024

Oggi, mercoledì 23 ottobre, l’Istituto nazionale di astrofisica dà il via alla quinta edizione del concorso di scrittura a tema astronomico – rivolto alle scuole primarie e secondarie di primo grado – ispirato a Gianni Rodari, grande autore e pedagogista
Un’amica per Betelgeuse
Creators: Giuseppe Fiasconaro
Publisher: name: Media Inaf
Year: 2024

Betelgeuse, la celebre supergigante rossa della costellazione di Orione, potrebbe avere una stella compagna di piccola massa. È quanto suggerisce un nuovo studio condotto da un team di scienziati del centro di astrofisica computazionale del Flatiron Institute, negli Usa. Lo studio che riporta i dettagli della ricerca è stato accettato per la pubblicazione su The Astrophysical Journal
Residual Tensor Train: A Quantum-inspired Approach for Learning Multiple Multilinear Correlations
Creators: name: Chen, Yiwei
name: Pan, Yu
name: Dong, Daoyi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: States of quantum many-body systems are defined in a high-dimensional Hilbert space, where rich and complex interactions among subsystems can be modelled. In machine learning, complex multiple multilinear correlations may also exist within input features. In this paper, we present a quantum-inspired multilinear model, named Residual Tensor Train (ResTT), to capture the multiple multilinear correlations of features, from low to high orders, within a single model. ResTT is able to build a robust decision boundary in a high-dimensional space for solving fitting and classification tasks. In particular, we prove that the fully-connected layer and the Volterra series can be taken as special cases of ResTT. Furthermore, we derive the rule for weight initialization that stabilizes the training of ResTT based on a mean-field analysis. We prove that such a rule is much more relaxed than that of TT, which means ResTT can easily address the vanishing and exploding gradient problem that exists in the existing TT models. Numerical experiments demonstrate that ResTT outperforms the state-of-the-art tensor network and benchmark deep learning models on MNIST and Fashion-MNIST datasets. Moreover, ResTT achieves better performance than other statistical methods on two practical examples with limited data which are known to have complex feature interactions.
description: 12 pages, 6 figures
A Hermitian TQFT from a non-semisimple category of quantum sl(2)-modules
Creators: name: Geer, Nathan
name: Lauda, Aaron D.
name: Patureau-Mirand, Bertrand
name: Sussan, Joshua
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Algebra (math.QA)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57K16, 17B37, 81R50, 18M15

description: We endow a non-semisimple category of modules of unrolled quantum sl(2) with a Hermitian structure. We also prove that the TQFT constructed in arXiv:1202.3553 using this category is Hermitian. This gives rise to projective representations of the mapping class group in the group of indefinite unitary matrices.
description: 18 pages
Concerns of primiparous mothers regarding infant care
Creators: name: Krauser, Sheila Ann
Publisher: name: University of Utah
Year: 2012
Subjects: subject: Childbirth
subject: Infants
subject: Psychology
subject: FOS: Psychology

description: The purpose of this study was to identify the areas of concerns primiparous post-partum women had in the care of their infants based upon the assumption that appropriate health instruction can be provided to mothers in meeting the needs of their children when these needs have been identified. The hypothesis tested, that there would be characteristic information needs relative to child care expressed by primiparous post-partum women, was supported.  Data collection was accomplished at the Naval Regional Medical Center, Long Beach, California, by having 25 primiparous post-partum women list their concerns and/or questions at two days post-delivery and again covering the period of time prior to the two-week well-baby visit. The responses were coded using Holley's seven hierarchy of human need categories and the total frequencies of references to each category tabulated. The data revealed 100 different types of questions asked.  The range for the number of questions asked in infant metabolic need category was from 1 to 12; the range for the number of questions asked in the infant sensory need category was from 1 to 7. The means of the infant metabolic and emotional need categories showed greater frequencies of occurrence, 7.08 and 6.36 respectively. The maternal activity need category 3 showed a statistically significant correlation with the subjects total categorical references while in the hospital There were fewer total categorical questions asked in the hospital by those subjects who were older, more educated and married longer with their husbands in the household and having read books on infant care than those subjects who had had previous experience babysitting and had more than three persons living in the present household. The opposite findings were obtained during the two-week well-baby visits. Speculations about these findings are discussed.
Giochi e sfide astronomiche sbarcano a Genova
Creators: Chiara Badia
Publisher: name: Media Inaf
Year: 2024

Dall’esplorazione dei raggi gamma alla creazione di una stella, l’Inaf porta al Festival della scienza di Genova un programma ricco di proposte per coinvolgere il pubblico in un viaggio affascinante attraverso i misteri dell’universo. Un’occasione per scoprire le ultime frontiere della ricerca astrofisica e vivere la scienza in prima persona
Construction of multifunctional supramolecular architecture via coordination-driven self-assembly
Creators: name: Ghosh, Koushik
Publisher: name: University of Utah
Year: 2012
Subjects: Coordination-driven
Multifunctional
Multivalency
Self-assembly
Supramolecule

description: Research conducted in the area of design and self-assembly of self-assembled supramolecular  structures has made much progress over the last three decades. In this broad area of research, construction of self-assembled metallasupramolecular structures based on transition metal-ligand interactions (coordination-driven self-assembly) has attracted considerable attention because of their potential applications as sensors, probes, photonic devices, catalysts and in  basic host guest chemistry. We plan to use coordination driven self-assembly and supramolecular chemistry in new, innovative directions that mimic the complex recognition, regulatory, multivalency, cooperativity and other properties of biological systems, by incorporating functional units, into these supramolecular structures and control their relative arrangements with respect to each other. This dissertation presents a new approach in the synthesis of multifunctional supramolecules. Based on this approach, a variety of novel molecular polygons and polyhedra with tremendous variations in shape, size and properties has been designed and synthesized. The ultimate goal of this research is the rapid assembly of nanoscale molecular devices for practical applications such as information storage, artificial receptors and drug-delivery agent. Short-termuses include chiral molecular recognition, applications in host-guest chemistry, and catalysis. These multifunctional supramolecular Pt(II)-based ensembles were also synthesized in high yields (90-95%). The macrocycleswere characterized by multinuclearNMRand ESI mass spectrometry.
Women's explanations for depression
Creators: name: Rhea, Martha H.
Publisher: name: University of Utah
Year: 2012
Subjects: subject: Psychology
subject: FOS: Psychology

description: This descriptive, exploratory study was designed to develop an understanding of women's spontaneous descriptions of depression and its causes.  Twenty-eight women participated with in-depth interviews.  Numerous theoretical perspectives have been offered as explanation of the high prevalence of depression in women.  This project captured the women's experience as lived and described, without tagging life as pathology. Women were asked to describe the life events and experiences that they called depression, rather than approaching depression from a preconceived theoretical perspective. Women's descriptions indicated experiences called depression ranged from mild to severe, from mood to clinical disorder.  Three approaches for dealing with depressive episodes were used by subjects.  Women generally were problem-solvers, medicators, or activators.  Through a phenomenological transformation process, four major conceptual categories were developed. Expectations and choices were predominant concerns expressed by the participants, which produced a category entitled, Finding Balance: The Juggling Act.""  Origins of influence for expectations and choices were the self, family and friends, religion, and society.  Confusion, satisfaction, conflict, and change were reactions experienced by women in balancing and juggling roles. The second category was ""What About Me?""  Women typically felt compelled to deny the self in order to meet the demands of others.  They demonstrated a commitment to being other-oriented.  Old lessons taught by mothers, grandmothers, and religious groups faded slowly for subjects.  Control of the self and personal destiny were not always held important by the women; external power sources were evident for some.  The role of motherhood left many depleted as self-interests were postponed.  ""The Process of Explaining"" described the process women utilized to devise explanations for depression. Search and construction were utilized by a majority of participants.  ""A Dream Gone Bad"" was a composite category of experiences described by a portion of the participants. Fantasized ideal relationships had not been realized. Role models also served as guides and influences.  These women were unable to experience a reality they imagined from observing role models.""
Extended Version of GTGraffiti: Spray Painting Graffiti Art from Human Painting Motions with a Cable Driven Parallel Robot
Creators: name: Chen, Gerry
name: Baek, Sereym
name: Florez, Juan-Diego
name: Qian, Wanli
name: Leigh, Sang-won
name: Hutchinson, Seth
name: Dellaert, Frank
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: We present GTGraffiti, a graffiti painting system from Georgia Tech that tackles challenges in art, hardware, and human-robot collaboration. The problem of painting graffiti in a human style is particularly challenging and requires a system-level approach because the robotics and art must be designed around each other. The robot must be highly dynamic over a large workspace while the artist must work within the robot's limitations. Our approach consists of three stages: artwork capture, robot hardware, and planning & control. We use motion capture to capture collaborator painting motions which are then composed and processed into a time-varying linear feedback controller for a cable-driven parallel robot (CDPR) to execute. In this work, we will describe the capturing process, the design and construction of a purpose-built CDPR, and the software for turning an artist's vision into control commands. Our work represents an important step towards faithfully recreating human graffiti artwork by demonstrating that we can reproduce artist motions up to 2m/s and 20m/s$^2$ within 9.3mm RMSE to paint artworks. Changes to the submitted manuscript are colored in blue.
description: Accompanying Details to ICRA 2022 Submission Number 2016
Comparative effects of immunoglobulins and immunoglobulin fragments on the immune response of rabbits
Creators: name: Beard, Michael Arthur
Publisher: name: University of Utah
Year: 2012
Subjects: Antibody
Physiochemical

description: Immunosuppression by passive transfer of antibody has been extensively studied and has resulted in at least one practical human application.  Human immunoglobulin G anti-Rho is now used widely in the prevention of Rh antibody production by Rh negative mothers.  Although considerable knowledge has accrued concerning the mechanisms involved, many aspects of the role of passive antibody are still uncertain.  The principal purpose of this was to determine if the low molecular weight subunit ( ? 160,000) of the IgM molecule is similar to the entire molecule (? 160,000 MW) of  IgG and IgM (1,000,000) in regards to its capacity to cause immunosuppression.  Rabbits immunized with human erythrocytes and injected with homologous immunoglobulins or their fractions were found to vary quantitatively in their ability to produce antibody.  Homologous anti-human erythrocyte IgG exhibited the greatest capability to cause immunosuppression.  Homologous, specific IgM appeared much less capable in suppression of antibody production.  Homologous IgM low molecular weight fragments had little or no effect on antibody production.