cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Практика публичного толкования законодательства Правительствующим Сенатом во второй половине XIX в.
Creators: name: Яковлев, Антон
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2022

description: В статье анализируется практика толкования законодательства Правительствующим Сенатом после Судебной реформы 1864 г. На примере материалов губернской прессы дается оценка степени публичности процедур толкования и эффективности интерпретационной практики. На конкретном примере автор анализирует толкование статей Устава уголовного судопроизводства и Лесного устава. Автор доказывает важность обобщения опыта интерпретационной практики Правительствующего Сената для становления и развития современного открытого информационного пространства. В статье доказывается универсальность публичного толкования в качестве способа доведения до сведения заинтересованных субъектов воли законодателя. По мнению автора, изучение практики публичного толкования права, характерной для второй половины XIX в., представляет значительный интерес как для современной теории права, так и для юридической практики.
A bio-plausible model of neural ensemble formation to encode odor identity in the olfactory cortex
Creators: name: Eugster, Philipp
name: Loidl, Reinhard
name: Aceituno, Pau V.
name: Grewe, Benjamin
Publisher: name: G-Node
Year: 2023
Subjects: Computational Neuroscience
Learning, plasticity and memory

description: Bernstein Conference 2023 abstract. https://bernstein-conference.de
Phase diagram of a ferromagnetic semiconductor. The origin of superparamagnetism
Creators: name: Bogoslovskiy, N. A.
name: Petrov, P. V.
name: Averkiev, N. S.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study the theoretical model of a ferromagnetic semiconductor as a system of randomly distributed Ising spins with a long-range exchange interaction. Using the density-of-states approach, we analytically obtain the magnetic susceptibility and heat capacity over a wide range of temperatures and magnetic fields. It is shown that the finite system of spins in magnetic field less than a certain critical field is in a superparamagnetic state due to thermodynamic fluctuations. The complex phase structure of a ferromagnetic semiconductor is discussed.
title: Миссия права: материалы Международной научно-практической конференции
Creators: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2022

description: Сборник научных статей подготовлен на основе докладов участников Международной научно-практической конференции «Миссия права», проходившей 21 апреля 2021 года и Всероссийской научной конференции с международным участием «Миссия права», проходившей 15–19 апреля 2022 года. Обе конференции проходили в Великом Новгороде, Новгородском государственном университете имени Ярослава Мудрого, юридическом институте. Партнерами конференции выступили Витебский государственный университет имени П. М. Машерова, Гродненский государственный университет имени Янки Купалы.
Представленные материалы отражают широкий диапазон научных исследований по актуальным проблемам в области правовых отношений, в том числе теоретико-исторические и практические аспекты деятельности государств по развитию и модернизации законодательства, новые подходы к регулированию частно-правовых отношений, современные модели взаимодействия уголовно-правовой науки и правоприменения.
Предназначено для преподавателей и обучающихся юридических вузов, практикующих юристов, работников правоохранительных и судебных органов, а также всех интересующихся вопросами правового развития.
Maximizing the number of $x$-colorings of $4$-chromatic graphs
Creators: name: Erey, Aysel
Publisher: name: arXiv
Year: 2016
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: Let $\mathcal{C}_4(n)$ be the family of all connected $4$-chromatic graphs of order $n$. Given an integer $x\geq 4$, we consider the problem of finding the maximum number of $x$-colorings of a graph in $\mathcal{C}_4(n)$. It was conjectured that the maximum number of $x$-colorings is equal to $(x)_{\downarrow 4}(x-1)^{n-4}$ and the extremal graphs are those which have clique number $4$ and size $n+2$. In this article, we reduce this problem to a \textit{finite} family of graphs. We show that there exist a finite family $\mathcal{F}$ of connected $4$-chromatic graphs such that if the number of $x$-colorings of every graph $G$ in $\mathcal{F}$ is less than $(x)_{\downarrow 4}(x-1)^{|V(G)|-4}$ then the conjecture holds to be true.
description: 19 pages, 5 figures
Sonnenfleckenzeichnung Nr. 211.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 30.08.1981, 08:30, erstellt von Roberto Cortesi, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1981

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf dem Vordruck der Eidgenössischen Sternwarte Zürich. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Hadronic matter at the edge: A survey of some theoretical approaches to the physics of the QCD phase diagram
Creators: name: Ayala, Alejandro
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In the past few years a wealth of high quality data has made possible to test current theoretical ideas about the properties of hadrons subject to extreme conditions of density and temperature. The relativistic heavy-ion program carried out at the CERN-SPS and under development at the BNL-RHIC and CERN-LHC has provided results that probe the evolution of collisions of hadronic matter at high energies from the initially large density to the late dilute stages. In addition, QCD on the lattice has produced results complementing these findings with first principles calculations for observables in a regime where perturbative techniques cannot describe the nature of strongly coupled systems. This work aims to review some recent developments that make use of field theoretical methods to describe the physics of hadrons at finite temperature and density. I concentrate on two of the main topics that have been explored in the last few years: (1) The search for the structure of the phase diagram and (2) analytical signals linked to the chiral symmetry restoration/deconfinement.
description: 14 pages, 1 figure. More references added. arXiv admin note: text overlap with arXiv:0908.2709 by other authors
Matching preclusion for $n$-grid graphs
Creators: name: Ding, Qi
name: Zhang, Heping
name: Zhou, Hui
Publisher: name: arXiv
Year: 2016
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: A matching preclusion set of a graph is an edge set whose deletion results in a graph without perfect matching or almost perfect matching. The Cartesian product of $n$ paths is called an $n$-grid graph. In this paper, we study the matching preclusion problems for $n$-grid graphs and obtain the following results. If an $n$-grid graph has an even order, then it has the matching preclusion number $n$, and every optimal matching preclusion set is trivial. If the $n$-grid graph has an odd order, then it has the matching preclusion number $n+1$, and all the optimal matching preclusion sets are characterized.
description: 24 pages, 7 figures
Investigation and Modeling of Inhibitory Synaptic Currents in the Barn Owl's Nucleus Laminaris
Creators: name: Faghani, Zahra M.
name: Kempter, Richard
name: Carr, Catherine E.
name: Kuokkanen, Paula T.
Publisher: name: G-Node
Year: 2023
Subjects: Computational Neuroscience
Learning, plasticity and memory

description: Bernstein Conference 2023 abstract. https://bernstein-conference.de
The fate of alpha dynamos at large $Rm$
Creators: name: Cameron, Alexandre
name: Alexakis, Alexandros
Publisher: name: arXiv
Year: 2016
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: At the heart of today's solar magnetic field evolution models lies the alpha dynamo description. In this work, we investigate the fate of alpha-dynamos as the magnetic Reynolds number $Rm$ is increased. Using Floquet theory, we are able to precisely quantify mean field effects like the alpha and beta effect (i) by rigorously distinguishing dynamo modes that involve large scale components from the ones that only involve small scales, and by (ii) providing a way to investigate arbitrary large scale separations with minimal computational cost. We apply this framework to helical and non-helical flows as well as to random flows with short correlation time. Our results determine that the alpha-description is valid for $Rm$ smaller than a critical value $Rm_c$ at which small scale dynamo instability starts. When $Rm$ is above $Rm_c$ the dynamo ceases to follow the mean field description and the growth rate of the large scale modes becomes independent of the scale separation while the energy in the large scale modes is inversely proportional to the square of the scale separation. The results in this second regime do not depend on the presence of helicity. Thus alpha-type modeling for solar and stellar models needs to be reevaluated and new directions for mean field modeling are proposed.
Structural and functional network properties through spike-timing dependent inhibitory plasticity
Creators: name: Festa, Dylan
name: Cusseddu, Claudia
name: Gjorgjieva, Julijana
Publisher: name: G-Node
Year: 2023
Subjects: Computational Neuroscience
Learning, plasticity and memory

description: Bernstein Conference 2023 abstract. https://bernstein-conference.de
Limitations of probabilistic error cancellation for open dynamics beyond sampling overhead
Creators: name: Ma, Yue
name: Kim, M. S.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum simulation of dynamics is an important goal in the NISQ era, within which quantum error mitigation may be a viable path towards modifying or eliminating the effects of noise. Most studies on quantum error mitigation have been focused on the resource cost due to its exponential scaling in the circuit depth. Methods such as probabilistic error cancellation rely on discretizing the evolution into finite time steps and applying the mitigation layer after each time step, modifying only the noise part without any Hamiltonian-dependence. This may lead to Trotter-like errors in the simulation results even if the error mitigation is implemented ideally, which means that the number of samples is taken as infinite. Here we analyze the aforementioned errors which have been largely neglected before. We show that, they are determined by the commutating relations between the superoperators of the unitary part, the device noise part and the noise part of the open dynamics to be simulated. We include both digital quantum simulation and analog quantum simulation setups, and consider defining the ideal error mitigation map both by exactly inverting the noise channel and by approximating it to the first order in the time step. We take single-qubit toy models to numerically demonstrate our findings. Our results illustrate fundamental limitations of applying probabilistic error cancellation in a stepwise manner to continuous dynamics, thus motivating the investigations of truly time-continuous error cancellation methods.
description: 13 pages, 11 figures, including appendices
Sonnenfleckenzeichnung Nr. 290.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 10.12.1981, 09:15, erstellt von Sergio Cortesi, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1981

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 2.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
living-in.eu main results at the digiNEB.eu webinar
Creators: name: Ruseva, Gabriela
Publisher: name: Zenodo
Year: 2023
Subjects: new european bauhaus
digital
collaboration
digital toolkit
observatory
data spaces

description: The webinar "Harnessing the Potential of Smart Technologies and Local Digital Twins for the New European Bauhaus" explored the intersection of the New European Bauhaus movement, smart technologies, and local digital twins. During the webinar, renowned experts and innovators who delved into the forefront of the New European Bauhaus movement and brought practical examples, such as living-in.eu, the European way of digital transformation in cities and communities.
New Closed Virial Equation of State for Hard-Sphere Fluids
Creators: name: Tian, Jianxiang
name: Gui, Yuanxing
name: Mulero, Angel
Publisher: name: arXiv
Year: 2016
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: A new closed virial equation of state of hard-sphere fluids is proposed which reproduces the calculated or estimated values of the first sixteen virial coefficients at the same time as giving very good accuracy when compared with computer simulation data for the compressibility factor over the entire fluid range, and having a pole at the correct closest packing density.
description: 16 pages, 1 figure, 2 tables. arXiv admin note: text overlap with arXiv:1606.07180
The influence of calcium-mediated dendritic action potentials on clustering of the temporally correlated inputs on dendrites
Creators: name: Hashemi, Seyedehsima
name: Shafiee, Shirin
name: Tetzlaff, Christian
Publisher: name: G-Node
Year: 2023
Subjects: Computational Neuroscience
Learning, plasticity and memory

description: Bernstein Conference 2023 abstract. https://bernstein-conference.de
Sonnenfleckenzeichnung Nr. 234.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 01.10.1981, 07:30, erstellt von Sergio Cortesi, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1981

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Sonnenfleckenzeichnung Nr. 295.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 17.12.1981, 09:00, erstellt von Sergio Cortesi, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1981

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 2.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Precision Corrections to Fine Tuning in SUSY
Creators: name: Buckley, Matthew R.
name: Monteux, Angelo
name: Shih, David
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Requiring that the contributions of supersymmetric particles to the Higgs mass are not highly tuned places upper limits on the masses of superpartners -- in particular the higgsino, stop, and gluino. We revisit the details of the tuning calculation and introduce a number of improvements, including RGE resummation, two-loop effects, a proper treatment of UV vs. IR masses, and threshold corrections. This improved calculation more accurately connects the tuning measure with the physical masses of the superpartners at LHC-accessible energies. After these refinements, the tuning bound on the stop is now also sensitive to the masses of the 1st and 2nd generation squarks, which limits how far these can be decoupled in Effective SUSY scenarios. We find that, for a fixed level of tuning, our bounds can allow for heavier gluinos and stops than previously considered. Despite this, the natural region of supersymmetry is under pressure from the LHC constraints, with high messenger scales particularly disfavored.
description: 26 pages, 8 figures
Click-Evoked Contributions from Single Auditory Units to EEG in the Barn Owl
Creators: name: Kuokkanen, Paula T.
name: Kraemer, Ira
name: Köppl, Christine
name: Carr, Catherine E.
name: Kempter, Richard
Publisher: name: G-Node
Year: 2023
Subjects: Computational Neuroscience
Sensory processing and perception

description: Bernstein Conference 2023 abstract. https://bernstein-conference.de
title: Denkschrift über die Bildung einer deutschen Kriegsflotte; 1848
title: vom Marine-Ausschuß der Bundesversammlung als Manuskript veröffentlicht
titleType: Subtitle
Creators: name: Adalbert Preußen, Prinz, 1811-1873
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2018

description: In Fraktur
Sonnenfleckenzeichnung Nr. 278.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 27.11.1981, 08:30, erstellt von Sergio Cortesi, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1981

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Finding Optimal Pathways in Chemical Reaction Networks Using Ising Machines
Creators: name: Mizuno, Yuta
name: Komatsuzaki, Tamiki
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Finding optimal pathways in chemical reaction networks is essential for elucidating and designing chemical processes, with significant applications such as synthesis planning and metabolic pathway analysis. Such a chemical pathway-finding problem can be formulated as a constrained combinatorial optimization problem, aiming to find an optimal combination of chemical reactions connecting starting materials to target materials in a given network. Due to combinatorial explosion, the computation time required to find an optimal pathway increases exponentially with the network size. Ising machines, including quantum and simulated annealing devices, are promising novel computers dedicated to such hard combinatorial optimization. However, to the best of our knowledge, there has yet to be an attempt to apply Ising machines to chemical pathway-finding problems. In this article, we present the first Ising/quantum computing application for chemical pathway-finding problems. The Ising model, translated from a chemical pathway-finding problem, involves several types of penalty terms for violating constraints. It is not obvious how to set appropriate penalty strengths of different types. To address this challenge, we employ Bayesian optimization for parameter tuning. Furthermore, we introduce a novel technique that enhances tuning performance by grouping penalty terms according to the underlying problem structure. The performance evaluation and analysis of the proposed algorithm were conducted using a D-Wave Advantage system and simulated annealing. The benchmark results reveal challenges in finding exact optimal pathways. Concurrently, the results indicate the feasibility of finding approximate optimal pathways, provided that a certain degree of relative error in cost value is acceptable.
Kinetic stability and energetics of simulated glasses created by constant pressure cooling
Creators: name: Staley, Hannah
name: Flenner, Elijah
name: Szamel, Grzegorz
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We use computer simulations to study the cooling rate dependence of the stability and energetics of model glasses created at constant pressure conditions and compare the results with glasses formed at constant volume conditions. To examine the stability, we determine the time it takes for a glass cooled and reheated at constant pressure to transform back into a liquid, $t_{\mathrm{trans}}$, and calculate the stability ratio $S = t_{\mathrm{trans}}/τ_α$, where $τ_α$ is the equilibrium relaxation time of the liquid. We find that, for slow enough cooling rates, cooling and reheating at constant pressure results in a larger stability ratio $S$ than for cooling and reheating at constant volume. We also compare the energetics of glasses obtained by cooling while maintaining constant pressure with those of glasses created by cooling from the same state point while maintaining constant volume. We find that cooling at constant pressure results in glasses with lower average potential energy and average inherent structure energy. We note that in model simulations of the vapor deposition process glasses are created under constant pressure conditions, and thus they should be compared to glasses obtained by constant pressure cooling.
Equation of state for hard sphere fluids offering accurate virial coefficients
Creators: name: Tian, Jianxiang
name: Jiang, Hua
name: Gui, Yuanxing
name: Mulero, A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The asymptotic expansion method is extended by using currently available accurate values for the first ten virial coefficients for hard sphere fluids. It is then used to yield an equation of state for hard sphere fluids, which accurately represents the currently accepted values for the first sixteen virial coefficients and compressibility factor data in both the stable and the metastable regions of the phase diagram.
description: 24 pages, 1 figure, 4 tables
Input filtering via attenuation in visual cortical networks measured with single-cell stimulation
Creators: name: LaFosse, Paul K.
name: Zhou, Zhishang
name: Scott, Victoria M.
name: Deng, Yanting
name: Histed, Mark H.
Publisher: name: G-Node
Year: 2023
Subjects: Computational Neuroscience
Sensory processing and perception

description: Bernstein Conference 2023 abstract. https://bernstein-conference.de
Sonnenfleckenzeichnung Nr. 220.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 09.09.1981, 12:15, erstellt von Sergio Cortesi, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1981

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf dem Vordruck der Eidgenössischen Sternwarte Zürich. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Automated quantification of one-dimensional nanostructure alignment on surfaces
Creators: name: Dong, Jianjin
name: Goldthorpe, Irene A.
name: Abukhdeir, Nasser Mohieddin
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: A method for automated quantification of the alignment of one-dimensional nanostructures from microscopy imaging is presented. Nanostructure alignment metrics are formulated and shown to able to rigorously quantify the orientational order of nanostructures within a two-dimensional domain (surface). A complementary image processing method is also presented which enables robust processing of microscopy images where overlapping nanostructures might be present. Scanning electron microscopy (SEM) images of nanowire-covered surfaces are analyzed using the presented methods and it is shown that past single parameter alignment metrics are insufficient for highly aligned domains. Through the use of multiple parameter alignment metrics, automated quantitative analysis of SEM images is shown to be possible and the alignment characteristics of different samples are able to be rigorously compared using a similarity metric. The results of this work provide researchers in nanoscience and nanotechnology with a rigorous method for the determination of structure/property relationships where alignment of one-dimensional nanostructures is significant.
description: 14 pages, 6 figures, submitted to Nanotechnology
Information encoding in populations of strongly noise correlated sensory neurons.
Creators: name: Mahuas, Gabriel
name: Marre, Olivier
name: Mora, Thierry
name: Ferrari, Ulisse
Publisher: name: G-Node
Year: 2023
Subjects: Computational Neuroscience
Sensory processing and perception

description: Bernstein Conference 2023 abstract. https://bernstein-conference.de
SSLRec: A Self-Supervised Learning Framework for Recommendation
Creators: name: Ren, Xubin
name: Xia, Lianghao
name: Yang, Yuhao
name: Wei, Wei
name: Wang, Tianle
name: Cai, Xuheng
name: Huang, Chao
Publisher: name: arXiv
Year: 2023
Subjects: subject: Information Retrieval (cs.IR)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Self-supervised learning (SSL) has gained significant interest in recent years as a solution to address the challenges posed by sparse and noisy data in recommender systems. Despite the growing number of SSL algorithms designed to provide state-of-the-art performance in various recommendation scenarios (e.g., graph collaborative filtering, sequential recommendation, social recommendation, KG-enhanced recommendation), there is still a lack of unified frameworks that integrate recommendation algorithms across different domains. Such a framework could serve as the cornerstone for self-supervised recommendation algorithms, unifying the validation of existing methods and driving the design of new ones. To address this gap, we introduce SSLRec, a novel benchmark platform that provides a standardized, flexible, and comprehensive framework for evaluating various SSL-enhanced recommenders. The SSLRec framework features a modular architecture that allows users to easily evaluate state-of-the-art models and a complete set of data augmentation and self-supervised toolkits to help create SSL recommendation models with specific needs. Furthermore, SSLRec simplifies the process of training and evaluating different recommendation models with consistent and fair settings. Our SSLRec platform covers a comprehensive set of state-of-the-art SSL-enhanced recommendation models across different scenarios, enabling researchers to evaluate these cutting-edge models and drive further innovation in the field. Our implemented SSLRec framework is available at the source code repository https://github.com/HKUDS/SSLRec.
description: Published as a WSDM'24 full paper (oral presentation)
Nanosilver/DCOIT-containing surface coating effectively and constantly reduces microbial load in emergency room surfaces
Creators: name: Weber, Johannes
name: Henssler, Leopold
name: Zeman, Florian
name: Pfeifer, Christian
name: Alt, Volker
name: Nerlich, Michael
name: Huber, M.
name: Herbst, Tanja
name: Koller, M.
name: Schneider-Brachert, Wulf
name: Kerschbaum, Maximilian
name: Holzmann, T.
Publisher: name: Universität Regensburg
Year: 2023
Subjects: subject: Nanosilver, Antimicrobial surface, Surface coating, Infection prevention, Nosocomial infections, Emergency room
subject: 610 Medizin

description: Background Colonization of near-patient surfaces in hospitals plays an important role as a source of healthcare-associated infections. Routine disinfection methods only result in short-term elimination of pathogens. Aim To investigate the efficiency of a newly developed antimicrobial coating containing nanosilver in long-term reduction of bacterial burden in hospital surfaces to close the gap between routine disinfection cycles. Methods In this prospective, double-blinded trial, frequently touched surfaces of a routinely used treatment room in an emergency unit of a level-I hospital were treated with a surface coating (nanosilver/DCOIT-coated surface, NCS) containing nanosilver particles and another organic biocidal agent (4,5-dichloro-2-octyl-4-isothiazolin-3-one, DCOIT), whereas surfaces of another room were treated with a coating missing both the nanosilver- and DCOIT-containing ingredient and served as control. Bacterial contamination of the surfaces was examined using contact plates and liquid-based swabs daily for a total trial duration of 90 days. After incubation, total microbial counts and species were assessed. Findings In a total of 2880 antimicrobial samples, a significant reduction of the overall bacterial load was observed in the NCS room (median: 0.31 cfu/cm2; interquartile range: 0.00–1.13) compared with the control coated surfaces (0.69 cfu/cm2; 0.06–2.00; P < 0.001). The nanosilver- and DCOIT-containing surface coating reduced the relative risk of a critical bacterial load (defined as >5 cfu/cm2) by 60% (odds ratio 0.38, P < 0.001). No significant difference in species distribution was detected between NCS and control group. Conclusion Nanosilver-/DCOIT-containing surface coating has shown efficiency for sustainable reduction of bacterial load of frequently touched surfaces in a clinical setting.
Sonnenfleckenzeichnung Nr. 204.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 23.08.1981, 08:00, erstellt von Michele DeLorenzi, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1981

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf dem Vordruck der Eidgenössischen Sternwarte Zürich. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 2.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
A Second Higgs Doublet in the Early Universe: Baryogenesis and Gravitational Waves
Creators: name: Dorsch, G. C.
name: Huber, S. J.
name: Konstandin, T.
name: No, J. M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We show that simple Two Higgs Doublet models still provide a viable explanation for the matter-antimatter asymmetry of the Universe via electroweak baryogenesis, even after taking into account the recent order-of-magnitude improvement on the electron-EDM experimental bound by the ACME Collaboration. Moreover we show that, in the region of parameter space where baryogenesis is possible, the gravitational wave spectrum generated at the end of the electroweak phase transition is within the sensitivity reach of the future space-based interferometer LISA.
description: 20 pages, 4 figures
Mixing Property of Symmetrical Polygonal Billiards
Creators: name: Carmo, R. B. do
name: Lima, T. Araújo
Publisher: name: arXiv
Year: 2023
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: The present work consists of a numerical study of the dynamics of irrational polygonal billiards. Our contribution reinforces the hypothesis that these systems could be Strongly Mixing, although never demonstrably chaotic, and discuss the role of rotational symmetries on the billiards boundaries. We introduce a biparametric polygonal billiards family with only $C_n$ rotational symmetries. Initially, we calculate for some integers values of $n$ the filling of the phase space through the Relative Measure $r(\ell, θ; t)$ for a plane of parameters $\ell \times θ$. From the resulting phase diagram, we could identify the completely ergodic systems. The numerical evidence that symmetrical polygonal billiards can be Strongly Mixing is obtained by calculating the Position Autocorrelation Function, $\Cor_x(t)$, these figures of merit result in power law-type decays $t^{- σ}$. The Strongly Mixing property is indicated by $σ= 1$. For odd small values of $n$, the exponent $σ\simeq 1$ is obtained while $σ< 1$, weakly mixing cases, for small even values. Intermediate $n$ values present $σ\simeq 1$ independent of parity. For high values of symmetry parameter $n$, the biprametric family tends to be a circular billiard (integrable case). This range shows even less ergodic behavior when $n$ increases and $σ$ decreases.
description: 8 pages, 12 figures
Spielbücher, Prognostiken und Textamulette als 'manuscript agents'
Creators: name: Heiles, Marco
Publisher: name: RWTH Aachen University
Year: 2022
Subjects: 15. Jahrhundert
16. Jahrhundert
Agency
Amulett
Frühe Neuzeit
Frühneuhochdeutsche Literatur
Gebrauchsliteratur
Mittelalter
Prognostik
Spielbuch

description: Was ist historische Wissens- und Gebrauchsliteratur? Theoretische Grundlagen und Parameter der Korpusbildung, Wolfenbüttel, Germany, 29 Aug 2022 - 31 Aug 2022; 33 Folien (2022). doi:10.5281/zenodo.7515437
Photo-electrons unveil topological transitions in graphene-like systems
Creators: name: Gavensky, Lucila Peralta
name: Usaj, Gonzalo
name: Balseiro, C. A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The topological structure of the wavefunctions of particles in periodic potentials is characterized by the Berry curvature $Ω_{kn}$ whose integral on the Brillouin zone is a topological invariant known as the Chern number. The bulk-boundary correspondence states that these numbers define the number of edge or surface topologically protected states. It is then of primary interest to find experimental techniques able to measure the Berry curvature. However, up to now, there are no spectroscopic experiments that proved to be capable to obtain information on $Ω_{kn}$ to distinguish different topological structures of the $\it{bulk}$ wavefunctions of semiconducting materials. Based on experimental results of the dipolar matrix elements for graphene, here we show that ARPES experiments with the appropriate x-ray energies and polarization can unambiguously detect changes of the Chern numbers in dynamically driven graphene and graphene-like materials opening new routes towards the experimental study of topological properties of condensed matter systems.
Observational Constraints on Early Coupled Quintessence
Creators: name: Goh, Lisa W. K.
name: Bachs-Esteban, Joan
name: Gómez-Valent, Adrià
name: Pettorino, Valeria
name: Rubio, Javier
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate an Early Coupled Quintessence model where a light scalar mediates a fifth force stronger than gravity among dark matter particles and leads to the growth of perturbations prior to matter-radiation equality. Using cosmological data from the $\textit{Planck}$ Cosmic Microwave Background power spectra, the Pantheon+ Type 1a Supernovae, Baryon Acoustic Oscillations, and Big Bang Nucleosynthesis, we constrain the coupling strength $β$ and the redshift $z_{\rm OFF}$ at which the interaction becomes effectively inactive, finding a firm degeneracy between these two parameters which holds true regardless of when the scaling regime begins.
description: 12 pages, 10 figures
High-Order Topological Phase Diagram Revealed by Anomalous Nernst Effect in Janus ScClI Monolayer
Creators: name: Yang, Ning-Jing
name: Zhang, Jian-Min
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Higher-order topological properties of two-dimensional(2D) magnetic materials have recently been proposed. In 2D ferromagnetic Janus materials, we find that ScClI is a second-order topological insulator (SOTI). By means of a multi-orbital tight-binding model, we analyze the orbital contributions of higher-order topologies. Further, we give the complete high-order topological phase diagram of ScClI, based on the external field modulation of the magneto-valley coupling and energy levels. 2D ScClI has a pronounced valley polarization, which causes different insulating phases to exhibit completely different anomalous Nernst conductance. As a result, we use the matched anomalous Nernst effect to reveal the topological phase transition process of ScClI. We utilize the characteristics of valley electronics to link higher-order topological materials with the anomalous Nernst effect, which has potential implications for high-order topological insulators and valley electronics.
description: 6 pages, 3 pages
Boron Nitride Nanosheet Veiled Gold Nanoparticles for Surface Enhanced Raman Scattering
Creators: name: Cai, Qiran
name: Mateti, Srikanth
name: Watanabe, Kenji
name: Taniguchi, Takashi
name: Huang, Shaoming
name: Chen, Ying
name: Li, Lu Hua
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Atomically thin boron nitride (BN) nanosheets have many properties desirable for surface enhanced Raman spectroscopy (SERS). BN nanosheets have a strong surface adsorption capability towards airborne hydrocarbon and aromatic molecules. For maximized adsorption area and hence SERS sensitivity, atomically thin BN nanosheet covered gold nanoparticles have been prepared for the first time. When placed on top of metal nanoparticles, atomically thin BN nanosheets closely follow their contours so that the plasmonic hot spots are retained. Electrically insulating BN nanosheets also act as a barrier layer to eliminate metal-induced disturbance in SERS. Moreover, the SERS substrates veiled by BN nanosheets show an outstanding reusability in the long term. As the result, the sensitivity, reproducibility and reusability of SERS substrates can be greatly improved. We also demonstrate that large BN nanosheets produced by chemical vapor deposition can be used to scale up the proposed SERS substrate for practical application.
Sonnenfleckenzeichnung Nr. 268.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 17.11.1981, 09:00, erstellt von Sergio Cortesi, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1981

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Deliverable 4.6: Joint International Scientific Conference VISION and International Network of Young Scientists Conference
Creators: name: Gabelova, Alena
name: Kataki, Agapi
name: Bozena Smolkova
name: Siposova, Tatiana
name: Kohl, Yvonne
name: Earl, Julie
name: Dusinska, Maria
Publisher: name: Zenodo
Year: 2023
Subjects: Project management
Horizon 2020 projects

description: This deliverable D4.6 is dedicated to the Joint International Scientific Conference VISION and International Network of Young Scientists Conference (JISC&INYSC). The idea behind JISC&INYSC was to summarize the VISION project's achievements, deepen collaboration between senior scientists, and build future cooperation among early-stage researchers. This event enabled the exchange of ideas, knowledge, and know-how, thus contributing to the creation of sustainable international networking and strengthening the innovation process. Moreover, this event was an excellent opportunity mainly for early-stage researchers and Ph.D. students to present and discuss their results in front of an international audience and reputable scientists, leading to encouraging them in their further work and enhancing their personal and professional development. An integral part of the conference was the VISION final project meeting, which was held in a hybrid form, allowing Dr. Doru Irimie, PO, from Brussels, Dr. Yvonne Kohl, the partner from Germany, and Prof. Nuria Malats, VISION Scientific Advisory Board (SAB) member, to participate in the meeting. Moreover, the social program of the conference enabled the participants to get closer to Slovakia's history, traditions, and nature.
Locomotion shapes visually-evoked neural dynamics through modulation of collicular subpopulations
Creators: name: Nuttin, Bram
name: Kühn, Norma
name: Chrzanowska, Anna
name: Sans Dublanc, Arnau
name: Farrow, Karl
Publisher: name: G-Node
Year: 2023
Subjects: Computational Neuroscience
Sensory processing and perception

description: Bernstein Conference 2023 abstract. https://bernstein-conference.de
Sonnenfleckenzeichnung Nr. 261.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 09.11.1981, 08:00, erstellt von Sergio Cortesi, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1981

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Stabilization and helicity control of hybrid magnetic skyrmion
Creators: name: Akhir, Muzakkiy P. M.
name: Suprayoga, Edi
name: Cahaya, Adam B.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The hybrid skyrmion, a type of magnetic skyrmion with intermediate helicity between Bloch and Néel skyrmion, has gained more attraction. It is tolerant toward the skyrmion Hall effect and a potential candidate for quantum bits. We investigated the stabilization and helicity control of the hybrid skyrmion in a two-dimensional magnetic system using an analytical model and micromagnetic simulation. We look at the interplaying factors of the bulk ($D_b$) and interfacial ($D_i$) Dzyaloshinskii-Moriya (DM) interactions along with the dipolar interaction. We show that the hybrid skyrmion can stabilize through the interplay between interfacial DM and either bulk DM or dipolar interaction. We can also control the helicity of the hybrid skyrmion by tuning the ratio of $D_i/D_b$ when there is no dipolar interaction, or simply by adjusting the $D_i$ when the $D_b$ is absent. Our results suggest that hybrid skyrmions can exist within $0 < |D_i| < 0.4$ mJ/m$^2$ for Co-based magnetic systems.
description: 11 pages, 7 figures
System matrix compression using Chebyshev polynomials of first and second kind
Creators: name: Droigk, Christine
name: Maass, Marco
name: Mertins, Alfred
Publisher: name: International Journal on Magnetic Particle Imaging
Year: 2022

description: A common procedure for the reconstruction in Lissajous-type magnetic particle imaging is solving a linear system of equations which is based on the measurement of the so-called system matrix and the induced voltage signal of the unknown magnetic particle distribution. To speed up the reconstruction process and to reduce memory consumption, different compression techniques for the system matrix have been investigated. In this work, we propose a system matrix compression using the tensor product of Chebyshev polynomials of first and second kind. This method is motivated by recently published theoretical findings on the system function. For evaluation, simulated and real-world system matrices have been compressed with the proposed method and other state-of-the-art techniques. When using only one compression coefficient per row, the proposed compression outperforms the compared methods for all tested system matrices in terms of the normalized error metric and better reconstruction results. Int. J. Mag. Part. Imag. 8(2), 2022, Article ID: 2212003, DOI: 10.18416/IJMPI.2022.2212003
description: International Journal on Magnetic Particle Imaging, Vol 8 No 2 (2022)
Spinon Majorana fermions
Creators: name: Wang, Rui
name: Lu, Hong-Yan
name: Wang, Baigeng
name: Ting, C. S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A realization of Majorana fermions is proposed in the frustrated magnets via the topological proximity effect. Specifically, we consider a theoretical model, where a topological insulator is coupled to a frustrated magnetic material through the spin exchange interaction. Using the renormalization group-based self-consistent mean-field approach, and calculating the self-energy correction due to the topological insulator, we find that the spin texture and the spin-momentum locking of the Dirac cone will be inherited by the spinons in the nearby frustrated magnets. This leads to a particular topological state of matter that supports the Majorana excitations. Unlike the conventional realization in SC systems, these Majorana fermions are the combination of spinons and anti-spinons, rather than electrons and holes. They can participate in the transport of spinons, leading to nontrivial properties of the spin transport.
description: To appear in Phys. Rev. B