cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Non-d$^0$ Electric Dipole in FeO$_5$ bipyramid: a New Resource for Quantum Paraelectrics, Ferroelectrics and Multiferroics
Creators: name: Shen, Shi-Peng
name: Chai, Yi-Sheng
name: Cong, Jun-Zhuang
name: Sun, Pei-Jie
name: Lu, Jun
name: Yan, Li-Qin
name: Wang, Shou-Guo
name: Sun, Young
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Electric polarization in conventional ferroelectric oxides usually involves nonmagnetic transition-metal ions with an empty d shell (the d$^0$ rule). Here we unravel a new mechanism for local electric dipoles based on magnetic Fe$^{3+}$ (3d$^5$) ion violating the d$^0$ rule. The competition between the long-range Coulomb interaction and short-range Pauli repulsion in a FeO$_5$ bipyramid with proper lattice parameters would favor an off-center displacement of Fe$^{3+}$ that induces a local electric dipole. The manipulation of this kind of non-d$^0$ electric dipoles opens up a new route for generating unconventional dielectrics, ferroelectrics, and multiferroics. As a prototype example, we show that the non-d$^0$ electric dipoles in ferrimagnetic hexaferrites (Ba,Sr)Fe$_{12}$O$_{19}$ lead to a new family of magnetic quantum paraelectrics.
description: 19 pages, 4 figures
A Practical and Scalable Decoder for Topological Quantum Error Correction with Digital Annealer
Creators: name: Fujisaki, Jun
name: Oshima, Hirotaka
name: Sato, Shintaro
name: Fujii, Keisuke
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: 68U01

description: Quantum error correction is one of the most important milestones for realization of large-scale quantum computation. To achieve this, it is essential not only to integrate a large number of qubits with high fidelity, but also to build a scalable classical system that can perform error correction. Here, we propose an efficient and scalable decoder for quantum error correction using Fujitsu Digital Annealer (DA). Specifically, the error correction problem of stabilizer codes is mapped into an Ising-type optimization problem, so-called quadratic unconstrained binary optimization (QUBO) problem, which is solved by DA. In particular, we implement the proposed DA decoder for the surface code and perform detailed numerical experiments for various code distances to see its performance and scalability. We observe that computational scaling for the DA decoder has a lower order of polynomial than the decoding methods using simulated annealing (SA) and minimum-weight perfect matching (MWPM) algorithm under all tested conditions. It is also shown that the DA decoder has advantages over the Union-Find (UF) decoder from a variety of perspectives including hardware implementation. Furthermore, the threshold behavior of the logical error probability for the DA decoder is analyzed and the resultant threshold lies between 9.4% and 9.8%, which is very close to that obtained by the MWPM decoder. This result clearly shows the high potential of the DA decoder for quantum error correction.
description: 12 pages, 10 figures
Random Matrix Time Series
Creators: name: Teng, Peiyuan
name: Xu, Min
Publisher: name: arXiv
Year: 2022
Subjects: subject: Methodology (stat.ME)
subject: Statistics Theory (math.ST)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: In this paper, a time series model with coefficients that take values from random matrix ensembles is proposed. Formal definitions, theoretical solutions, and statistical properties are derived. Estimation and forecast methodologies for random matrix time series are discussed with examples. Random matrix differential equations and potential applications of the time series model are suggested at the end.
description: 15 pages
Advanced High-Insulation and High-Voltage Transformers Leveraging Wireless Power Transfer Technologies -Slides
Creators: Siqi Li
Publisher: name: IEEE
Year: 2024

PELS Webinar Slides

Abstract:Wireless power transfer (WPT) technology enables the separation of primary and secondary side structures, possessing inherent advantages in high-insulation application scenarios. In this webinar, we will present the design of two types of high-insulation transformers harnessing the potential of WPT technology. Firstly, we will introduce a high-efficiency medium-frequency split-planar transformer (MFSPT) designed specifically for medium-voltage modular converters (MMC). High electrical insulation is achieved with high efficiency, high power density, as well as excellent heat dissipation performance at the same time. Furthermore, we will introduce a high-frequency, high step-up, and high-insulation transformer operating in the MHz frequency range. This transformer serves as a critical component in high-voltage power supplies and is widely applied across diverse domains.
From Culture to Sequencing: Deciphering the Temperate Nature of Human Gut Bacteriophages
Creators: name: DAHLMAN, SOFIA ANNA MARIA
Publisher: name: Monash University
Year: 2023
Subjects: Microbial genetics
Microbiology not elsewhere classified

description: Bacteriophages are viruses that infect bacteria. Temperate phages are able to remain dormant within the bacterial host and may provide beneficial functions to the host. My thesis aims to identify active temperate phages within a collection of diverse gut bacteria in order to further understand how phages shape our gut microbiota. I found that many bacteria carry more than one temperate phages, most of which are novel and prevalent in the gut. Further, many of these harboured interesting genetic features for further investigation.
Pendidikan Karakter Kemandirian di Pesantren Raudhatul Muttaqien Kalasan Sleman
Creators: name: Azizah, Laili Nur
name: Murtadlo, Muhamad
Publisher: name: Zenodo
Year: 2017
Subjects: Pendidikan Karakter
Kemandirian
Pesantren

description: Tulisan hasil pembinaan Peneliti Muda
Optimized imaging using non-rigid registration
Creators: name: Berkels, Benjamin
name: Binev, Peter
name: Blom, Douglas A.
name: Dahmen, Wolfgang
name: Sharpley, Robert C.
name: Vogt, Thomas
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: The extraordinary improvements of modern imaging devices offer access to data with unprecedented information content. However, widely used image processing methodologies fall far short of exploiting the full breadth of information offered by numerous types of scanning probe, optical, and electron microscopies. In many applications, it is necessary to keep measurement intensities below a desired threshold. We propose a methodology for extracting an increased level of information by processing a series of data sets suffering, in particular, from high degree of spatial uncertainty caused by complex multiscale motion during the acquisition process. An important role is played by a nonrigid pixel-wise registration method that can cope with low signal-to-noise ratios. This is accompanied by formulating objective quality measures which replace human intervention and visual inspection in the processing chain. Scanning transmission electron microscopy of siliceous zeolite material exhibits the above-mentioned obstructions and therefore serves as orientation and a test of our procedures.
U(1)-symmetric Gaussian fermionic projected entangled paired states and their Gutzwiller projection
Creators: name: Li, Jheng-Wei
name: von Delft, Jan
name: Tu, Hong-Hao
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We develop a formalism for constructing particle-number-conserving Gaussian fermionic projected entangled pair states [U(1)-GfPEPS] and show that these states can describe ground states of band insulators and gapless fermions with band touching points. When using them as variational Ansätze for two Dirac fermion systems ($π$-flux model on the square lattice and $[0,π]$-flux model on the kagome lattice), we find that the U(1)-GfPEPS, even with a relatively small bond dimension, can accurately approximate the Dirac Fermi sea ground states. By applying Gutzwiller projectors on top of these U(1)-GfPEPS, we obtain PEPS representation of U(1)-Dirac spin liquid states for spin-1/2 systems. With state-of-the-art tensor network numerics, the critical exponent in the spin-spin correlation function of the Gutzwiller-projected $π$-flux state is estimated to be $η\approx 1.7$.
Embedding bordered Riemann surfaces in strongly pseudoconvex domains
Creators: name: Forstneric, Franc
Publisher: name: arXiv
Year: 2022
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 32E30, 32H02

description: We show that every bordered Riemann surface, $M$, with smooth boundary $bM$ admits a proper holomorphic map $M\to Ω$ into any bounded strongly pseudoconvex domain $Ω$ in $\mathbb C^n$, $n>1$, extending to a smooth map $f:\overline M\to\overline Ω$ which can be chosen an immersion if $n\ge 3$ and an embedding if $n\ge 4$. Furthermore, $f$ can be chosen to approximate a given holomorphic map $\overline M\to Ω$ on compacts in $M$ and interpolate it at finitely many given points in $M$.
description: In memory of Mihnea Coltoiu. To appear in Rev. Roumaine Math. Pures Appl. Research was supported by the European Union (ERC Advanced grant HPDR, 101053085) and grants P1-0291, J1-3005, and N1-0237 from ARRS, Republic of Slovenia
Cluster dynamics and cluster size distributions in systems of self-propelled particles
Creators: name: Peruani, Fernando
name: Schimansky-Geier, Lutz
name: Baer, Markus
Publisher: name: arXiv
Year: 2014
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Systems of self-propelled particles (SPP) interacting by a velocity alignment mechanism in the presence of noise exhibit a rich clustering dynamics. It can be argued that clusters are responsible for the distribution of (local) information in these systems. Here, we investigate the statistical properties of single clusters in SPP systems, like the asymmetric spreading of clusters with respect to their moving direction. In addition, we formulate a Smoluchowski-type kinetic model to describe the evolution of the cluster size distribution (CSD). This model predicts the emergence of steady-state CSDs in SPP systems. We test our theoretical predictions in simulations of SPP with nematic interactions and find that our simple kinetic model reproduces qualitatively the transition to aggregation observed in simulations.
Towards the ground state of molecules via diffusion Monte Carlo on neural networks
Creators: name: Ren, Weiluo
name: Fu, Weizhong
name: Wu, Xiaojie
name: Chen, Ji
Publisher: name: arXiv
Year: 2022
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Diffusion Monte Carlo (DMC) based on fixed-node approximation has enjoyed significant developments in the past decades and become one of the go-to methods when accurate ground state energy of molecules and materials is needed. The remaining bottleneck is the limitations of the inaccurate nodal structure, prohibiting more challenging electron correlation problems to be tackled with DMC. In this work, we apply the neural-network based trial wavefunction in fixed-node DMC, which allows accurate calculation of a broad range of atomic and molecular systems of different electronic characteristics. Our method is superior in both accuracy and efficiency compared to state-of-the-art neural network methods using variational Monte Carlo. Overall, this computational framework provides a new benchmark for accurate solution of correlated electronic wavefunction and also shed light on the chemical understanding of molecules.
Evaluating the Resilience of Variational Quantum Algorithms to Leakage Noise
Creators: name: Ding, Chen
name: Xu, Xiao-Yue
name: Zhang, Shuo
name: Bao, Wan-Su
name: Huang, He-Liang
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: As we are entering the era of constructing practical quantum computers, suppressing the inevitable noise to accomplish reliable computational tasks will be the primary goal. Leakage noise, as the amplitude population leaking outside the qubit subspace, is a particularly damaging source of error that error correction approaches cannot handle. However, the impact of this noise on the performance of variational quantum algorithms (VQAs), a type of near-term quantum algorithms that is naturally resistant to a variety of noises, is yet unknown. Here, {we consider a typical scenario with the widely used hardware-efficient ansatz and the emergence of leakage in two-qubit gates}, observing that leakage noise generally reduces the expressive power of VQAs. Furthermore, we benchmark the influence of leakage noise on VQAs in real-world learning tasks. Results show that, both for data fitting and data classification, leakage noise generally has a negative impact on the training process and final outcomes. Our findings give strong evidence that VQAs are vulnerable to leakage noise in most cases, implying that leakage noise must be effectively suppressed in order to achieve practical quantum computing applications, whether for near-term quantum algorithms and long-term error-correcting quantum computing.
description: Accepted by PRA
Update on the SBNAF Infrared Database
Creators: name: Szakáts, Róbert
name: Müller, Thomas G.
name: Alí-Lagoa, Víctor
name: Marton, Gábor
name: Farkas-Takács, Anikó
name: Bányai, Evelin
name: Kiss, Csaba
Publisher: name: Zenodo
Year: 2022
Subjects: database
asteroids
small solar system objects
infrared

description: One of the objectives of the Small Bodies: Near and Far (SBNAF) Horizon 2020 project was to create an easy-to-use database for ground-based, airborne, and space thermal infrared observations of small bodies. We collected published thermal IR measurements for our selected samples of Solar system targets including data from large missions (e.g. catalogues based on Akari, IRAS and WISE observations) and also data from smaller scale and individual reductions (e.g. the Herschel Space Observatory measurements of near-Earth and main belt asteroids). The main goal of this database is to help scientists working in the field of small body thermal emission modeling. The database has the option to include additional data of Solar System small bodies observed at thermal IR wavelengths either from space or with ground-based instruments. The database is online (link) and accessible since March 2019 (see Szakáts et al., 2020).
 Recently our database was used, e.g. to help determine the shape and spin properties of (208) Lacrimosa asteroid in the Koronis family, (Vokrouhlický et al., 2021), to model the thermophysical state of two Hilda asteroids (1162) Larissa and (1911) Schubart, (Chavez et al., 2021) and to model the thermal emission of large main belt asteroids (Ali-Lagoa et al., 2020).
 In a recent update we added 324 new flux densities for 23 resonant trans-Neptunian and scattered disk objects to the database from Farkas-Takács et al. 2020, and in total we have now 170461 records
 (see the Release Notes of February 2, 2021).
 In an upcoming update we are planning to extend the database with WISE W2 data, Uranus and Neptune satellite data, with flux densities from Herschel serendipitous asteroid observations, and disk-integrated thermal data of the Moon (Müller et al., 2021).
 The WISE W2 data will bring shorter wavelength flux densities to the database for selected asteroids. During the processing special attention will be given to those small bodies, mainly NEAs, for which the reflected light can cause discrepancies when calculating the colour correction factor.
 We will also include a large number of Herschel serendipitous asteroid observations (Szakáts et al., 2021). Right now the database consists of space-based observations, but it was not exclusively created for that type of data. We plan to expand the records with ground-based and airborne, photometric and spectroscopic data, too. In the era of JWST and with the upcoming new telescopes there is not only an opportunity to broaden our database, but there is also need from the scientific community to have a tool that can help both observation planning and the interpretation of new thermal emission data. The Small Body Infared Database can serve all these needs.
Momentum and pseudomomentum in a shallow water equation
Creators: name: Hanna, J. A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Mathematical Physics (math-ph)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: A basic shallow water system with variable topography is analyzed from the point of view of a Lagrangian derivation of momentum, energy, and pseudomomentum balances. A two-dimensional action and associated momentum equation are derived. The latter is further manipulated to derive additional equations for energy and pseudomomentum. This revealed structure emphasizes broken symmetries in space and a reference configuration, and preserved symmetry in time.
description: at the beach
Talent: Quality Test Results Compilation
Creators: name: ITI
Publisher: name: Zenodo
Year: 2017
Subjects: TALENT
2017
machine learning
industry
quality control
3D
metrology
defect detection
quality test

description: TALENT (Research in Machine Learning techniques applied for open issues within the Industrial Manufacturing sector) is a project funded by the Valencian Institute for Business Competitiveness (IVACE) and the European Union through the European Regional Development Fund (FEDER).

The general objective of this project is to advance in the design, implementation and industrialization of contact-free and occlusions-free automated inspection systems, introducing Machine Learning techniques. This will enable companies of the Valencia Region to increase product quality guarantees and thus strengthen their market position.

This document contains a compilation of the test reports that the quality team has been generating during the progress of the project
description: TALENT. Project funded by the Valencian Institute of Business Competitiveness (IVACE) and European Union through the European Regional Development Fund (ERDF), within the public grant program adressed to Technological Institutes of the Valencian Community for the development of non-economic R&D projects carried out in cooperation with companies during 2017 with 199.670,64€. File number: IMDEEA/2017/90
Young planets are key: HIP 67522 b and TOI-4562 b
Creators: name: HEITZMANN, Alexis
name: Marsden, Stephen
name: Zhou, George
name: Wright, Duncan
name: Petit, Pascal
name: Huang, Chelsea
name: Quinn, Samuel
Publisher: name: Zenodo
Year: 2022
Subjects: exoplanets
young exoplanets
young stars
stellar activity
obliquity
eccentricity
radial velocities
transits

description: A wealth of models to explain the early evolution of planetary systems have emerged following the discovery of nearly 5000 unexpectedly diverse exoplanets. Validating these theories requires knowledge of planetary properties at all stages of a system’s life and is best informed by giant planets, more accessible to current detections methods and excellent tracers of formation history. Currently, the early days (< 500 Myr) of planets orbiting Sun-like stars is greatly under sampled and it is essential to increase the pool of young giant planets. In this talk, we present HIP 67522 b and TOI 4562 b and show how these two young giant planets, discovered by the TESS mission, contribute to our understanding of early planet evolution. HIP 67522 b is the youngest Jupiter sized planet showing a well-aligned orbit with its star spin axis and TOI 4562 b is a 200 Myr old, long period and highly eccentric Jupiter like planet. By placing both planets in the broader context of young gas giants, including additional very recent discoveries, we will demonstrate the necessity to shift our focus to younger stars and the associated need to overcome the barrier imposed by stellar activity.
description: {"references": ["Heitzmann, A. et al. (2021), ApJ, 922, L1", "Heitzmann, A. et al. (2022), arXiv, 2208.10854"]}
Discovery prospects for heavy dark matter in KAGRA
Creators: name: Lee, Chun-Hao
name: Primulando, Reinard
name: Spinrath, Martin
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We discuss the discovery prospects for kg-scale dark matter with a Yukawa-like long-range interaction in Kamioka Gravitational Wave Detector (KAGRA). We consider the interaction range to be in the order of kilometers, thus the dark matter may interact with multiple KAGRA mirrors simultaneously. The induced signal strain is in many cases dominated by frequencies below about 130 Hz. Due to the geometry of the detector there is some strong directional sensitivity. It turns out that KAGRA would be able to constrain such kind of dark matter within a few years of operation. With our set of assumptions we expect that KAGRA could detect a few events per year for 10 kg dark matter, with a Yukawa interaction with a range of 10 km and an effective coupling constant around $10^6$.
description: 22 pages, 8 figures
Electric field induced localization phenomena in a ladder network with superlattice configuration: Effect of backbone environment
Creators: name: Dutta, Paramita
name: Maiti, Santanu K.
name: Karmakar, S. N.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Electric field induced localization properties of a tight-binding ladder network in presence of backbone sites are investigated. Based on Green's function formalism we numerically calculate two-terminal transport together with density of states for different arrangements of atomic sites in the ladder and its backbone. Our results lead to a possibility of getting multiple mobility edges which essentially plays a switching action between a completely opaque to fully or partly conducting region upon the variation of system Fermi energy, and thus, support in fabricating mesoscopic or DNA-based switching devices.
description: 9 pages, 6 figures
The "True" Widom Line for a Square-Well System
Creators: name: Brazhkin, V. V.
name: Fomin, Yu. D.
name: Ryzhov, V. N.
name: Tareyeva, E. E.
name: Tsiok, E. N.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In the present paper we propose the van der Waals-like model, which allows a purely analytical study of fluid properties including the equation of state, phase behavior and supercritical fluctuations. We take a square-well system as an example and calculate its liquid - gas transition line and supercritical fluctuations. Employing this model allows us to calculate not only the thermodynamic response functions (isothermal compressibility $β_T$, isobaric heat capacity $C_P$, density fluctuations $ζ_T$, and thermal expansion coefficient $α_T$), but also the correlation length in the fluid $ξ$. It is shown that the bunch of extrema widens rapidly upon departure from the critical point. It seems that the Widom line defined in this way cannot be considered as a real boundary that divides the supercritical region into the gaslike and liquidlike regions. As it has been shown recently, the new dynamic line on the phase diagram in the supercritical region, namely the Frenkel line, can be used for this purpose.
description: 6 pages, 4 figures
On astigmatic solutions of the wave and the Klein-Gordon-Fock equations with exponential fall--off
Creators: name: Fialkovsky, Ignat V.
name: Perel, Maria V.
name: Plachenov, Alexander B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Highly localized explicit solutions to multidimensional wave and Klein--Gordon--Fock equations are presented. Their Fourier transform is also found explicitly. Solutions depend on a set of parameters, and demonstrate astigmatic properties. Asymptotic analysis for large and moderate time shows that constructed solutions have Gaussian localisation near a point moving with the group speed.
description: 27 pages, 3 pictures
Маскированная артериальная гипертензия-распространенность,патофизиологические детерминанты и клиническое значение.2019.pdf
Creators: name: Doe, Jonn
Publisher: name: figshare
Year: 2020
Subjects: subject: Cardiology
subject: 110201 Cardiology (incl. Cardiovascular Diseases)
subject: FOS: Clinical medicine

description: Маскированная артериальная гипертензия-распространенность,патофизиологические детерминанты и клиническое значение.2019
В большинстве современных исследований маскированная артериальная гипертензия (МАГ) характеризуется как плохо диагностируемое, латентно протекающее клиническое состояние, предрасполагающее к субклиническому поражению органов-мишеней и увеличению риска сердечно-сосудистых осложнений.
К наиболее важным факторам риска (ФР) МАГ и её патофизиологическим детерминантам относят генетический полиморфизм, субклиническое неспецифическое воспаление, нарушения гемостаза, ожирение, метаболический синдром, водносолевой дисбаланс, дислипидемию, гиперурикемию. Определенное значение принадлежит латентной дисфункции обеспечивающих циркуляторный гомеостаз механизмов, выявление которой возможно по гемодинамическому ответу на предъявляемые воздействия: психоэмоциональные, гипоксические, гипокапнические, ортостатические. Агрессивность воздействия ФР и последствия их реализации оценивают по темпам развития сердечно-сосудистых событий и смертности, которые указывают на неблагоприятный прогноз “неуправляемой” МАГ. Максимальное ограничение влияний ФР и рациональная фармакотерапия позволяют существенно улучшить её клинические перспективы.
Cavity controlled spectral singularity
Creators: name: Reddy, K. Nireekshan
name: Gupta, S. Dutta
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We study theoretically a PT-symmetric saturable balanced gain-loss system in a ring cavity configuration. The saturable gain and loss are modeled by two-level medium with or without population inversion. We show that the specifics of the spectral singularity can be fully controlled by the cavity and the atomic detuning parameters. The theory is based on the mean-field approximation as in standard theory of optical bistability. Further, in the linear regime we demonstrate the regularization of the singularity in detuned systems, while larger input power levels are shown to be adequate to limit the infinite growth in absence of detuning
Open Science In Astronomy
Creators: name: Ainsworth, Rachael
Publisher: name: Zenodo
Year: 2018

description: My talk for EWASS 2018, Session 6: Software in Astronomy, Thursday, 5th April 9:00.

Making research results more accessible can contribute to better and more efficient science, however widespread adoption of open research practices has not yet been achieved. Funding agencies (such as the European Commission Horizon 2020) are increasingly requiring research products (such as data and publications) to be made openly available in order to make results more accessible, transparent and reproducible. Recent studies have also shown that open research practices are associated with benefits to the researcher such as increases in citations, media attention, potential collaborators, job and funding opportunities. In this talk I will discuss the different aspects of Open Science, the barriers we face to practicing openly, how to "open" up your research workflow using open and transparent data and software services in order to reap the benefits associated with open research practices, and highlight current open projects in Astronomy.

Both pdf and pptx formats are included as some slides contain gifs.
Monopoles, Strings and Gravitational Waves in Non-minimal Inflation
Creators: name: Maji, Rinku
name: Shafi, Qaisar
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss how in $SO(10)$ grand unification an observable number density of topologically stable intermediate mass ( $\sim 10^{14}$ GeV) monopoles survive inflation driven by a Coleman-Weinberg potential and non-minimal coupling of the inflaton field to gravity. The scalar spectral index $n_s$ is in excellent agreement with the current observations, and the tensor to scalar ratio $r\gtrsim 0.003$. The model also predicts the presence of intermediate scale topologically stable cosmic strings, and their gravitational wave spectrum reflects the amount of cosmic inflation experienced by the associated symmetry breaking. The discovery of these primordial monopoles and the stochastic gravitational wave background from the strings would provide important new insights regarding the symmetry breaking patterns in the early universe.
description: 21 pages, 10 figures, matches version published in JCAP
title: Latvia Report. Sustainable Governance Indicators 2022
Creators: name: Mangule, Indra
name: Auers, Daunis
name: Jahn, Detlef
Publisher: name: Bertelsmann Stiftung
Year: 2022
Subjects: Governance
Democracy
Regierungshandeln

description: Prior to the COVID-19 pandemic, economic growth in Latvia was persistently above the average EU rate, with the economy growing by an average of 3.3.% annually. The 2019 Global Competitiveness Index ranked Latvia 41st among 141 surveyed world economies. This growth created the fiscal space to shift focus to neglected policy challenges including social inequalities, income disparities, and poor health and education outcomes.
Direct interconnection of offshore airborne wind energy systems
Creators: name: Salari, Mahdi Ebrahimi
name: Coleman, Joseph
name: Dooly, Gerard
name: Toal, Daniel
Publisher: name: University of Limerick
Year: 2024
Subjects: classificationCode: 40
subject: Engineering

description: In this paper, direct interconnection of offshore pumping-mode AWE systems has been investigated. Direct interconnection is an approach to reduce the installation of power electronic sub systems in the field because of the high expenses of repair and maintenance for offshore systems. An offshore AWE park with three units has been modeled and simulation results and discussion are presented.
Revisiting semiconductor bulk hamiltonians using quantum computers
Creators: name: Pimenta, Raphael César de Souza
name: Bezerra, Anibal Thiago
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: With the advent of near-term quantum computers, the simulation of properties of solids using quantum algorithms becomes possible. By an adequate description of the system's Hamiltonian, variational methods enable to fetch the band structure and other fundamental properties as transition probabilities. Here, we use k$\cdot$p Hamiltonians to describe semiconductor structures of the III-V family and obtain their band structures using a state vector solver, a probabilistic simulator, and a real noisy-device simulator. The resulting band structures are in good agreement with the ones obtained by direct diagonalization of the Hamiltonian. Simulation times depend on the optimizer, circuit depth, and simulator used. Finally, with the optimized eigenstates, we convey the inter-band absorption probability, demonstrating the possibility of analyzing the fundamental properties of crystalline systems using quantum computers.
On determining the kinetic content of ellipsoidal configurations
Creators: name: Rodrigues, Hilario
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Determining the velocity field of structures such as galaxies, stars, and fluid planets is a relevant topic in astrophysics and astronomy. Depending on the shape of the astrophysical object, the internal velocity field may be obtained by means of analytical methods. Specifically, ellipsoidal configurations are the most simple and natural generalization of spherically symmetric mass distributions, when rotation is present. In this work one obtains closed analytical expressions of the velocity field and of the kinetic energy of uniform ellipsoidal configurations composed of compressible fluids. With this aim, the equation of continuity is solved allowing a description of the irrotational velocity field within the system. This permits obtaining analytical expressions of the kinetic energy for each specific mass distribution.
description: 8 pages, no figures. Monthly Notices of the Royal Astronomical Society Main Journal, 2014
Fractal free energy landscapes in structural glasses
Creators: name: Charbonneau, Patrick
name: Kurchan, Jorge
name: Parisi, Giorgio
name: Urbani, Pierfrancesco
name: Zamponi, Francesco
Publisher: name: arXiv
Year: 2014
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Glasses are amorphous solids whose constituent particles are caged by their neighbors and thus cannot flow. This sluggishness is often ascribed to the free energy landscape containing multiple minima (basins) separated by high barriers. Here we show, using theory and numerical simulation, that the landscape is much rougher than is classically assumed. Deep in the glass, it undergoes a "roughness transition" to fractal basins. This brings about isostaticity at jamming and marginality of glassy states near jamming. Critical exponents for the basin width, the weak force distribution, and the spatial spread of quasi-contacts at jamming can be analytically determined. Their value is found to be compatible with numerical observations. This advance therefore incorporates the jamming transition of granular materials into the framework of glass theory. Because temperature and pressure control which features of the landscape are experienced, glass mechanics and transport are expected to reflect the features of the topology we discuss here. Hitherto mysterious properties of low-temperature glasses could be explained by this approach.
description: 13 pages, 4 figures. This version was initially submitted to Nature Communications in December 2013. The (much improved) final version is available on the Nature Communications website (see DOI below). A detailed version of this work is available on arXiv:1310.2549
Agrypnus concoloris Vats and Kashyap 1992
Creators: name: Kotru, Akash
name: Chandran, Nithya
name: Dubey, Anil Kumar
name: Prosvirov, Alexander S.
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Elateridae
Agrypnus
Agrypnus concoloris

description: Agrypnus concoloris Vats and Kashyap, 1992
Agrypnus concoloris Vats and Kashyap, 1992: 120.
Type depository. Holotype (NPC-IARI).
Type locality. Rajasthan (Chittorgarh).
Distribution. India: Rajasthan (Chakraborty, Chakrabarti, 2000).
Literature. Vats and Kashyap (1992: 120): original description; Chakraborty and Chakrabarti (2000: 77): catalogue.
description: Published as part of Kotru, Akash, Chandran, Nithya, Dubey, Anil Kumar & Prosvirov, Alexander S., 2025, A catalogue of Indian Agrypninae Candèze, 1857 (Coleoptera: Elateridae), pp. 1-66 in Zootaxa 5614 (1) on page 15, DOI: 10.11646/zootaxa.5614.1.1, http://zenodo.org/record/15217075
On the Distribution of Partially Symmetric Codes for Automorphism Ensemble Decoding
Creators: name: Pillet, Charles
name: Bioglio, Valerio
name: Giard, Pascal
Publisher: name: arXiv
Year: 2022
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Automorphism Ensemble (AE) decoding has recently drawn attention as a possible alternative to list decoding of polar codes. In this letter, we investigate the distribution of Partially-Symmetric Reed-Muller (PS-RM) codes, a family of polar codes yielding good performances under AE decoding. We prove the existence of these codes for almost all code dimensions for code lengths $N\leq 256$. Moreover, we analyze the absorption group of this family of codes under SC decoding, proving that valuable permutations in AE decoding always exist. Finally, we experimentally show that PS-RM codes can outperform state-of-the-art polar-code-construction algorithms in terms of error-correction performance for short code lengths, while reducing decoding latency.
description: 6 pages, 4 figures, 4 sub-figures, to be presented at IEEE Information Theory Workshop 2023
Spreading dynamics in complex networks
Creators: name: Pei, Sen
name: Makse, Hernan A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Searching for influential spreaders in complex networks is an issue of great significance for applications across various domains, ranging from the epidemic control, innovation diffusion, viral marketing, social movement to idea propagation. In this paper, we first display some of the most important theoretical models that describe spreading processes, and then discuss the problem of locating both the individual and multiple influential spreaders respectively. Recent approaches in these two topics are presented. For the identification of privileged single spreaders, we summarize several widely used centralities, such as degree, betweenness centrality, PageRank, k-shell, etc. We investigate the empirical diffusion data in a large scale online social community -- LiveJournal. With this extensive dataset, we find that various measures can convey very distinct information of nodes. Of all the users in LiveJournal social network, only a small fraction of them involve in spreading. For the spreading processes in LiveJournal, while degree can locate nodes participating in information diffusion with higher probability, k-shell is more effective in finding nodes with large influence. Our results should provide useful information for designing efficient spreading strategies in reality.
description: 23 pages, 2 figures
CrowdAI / OpenSNP - height prediction challenge - leaderboard/overview
Creators: name: Naret, Olivier
Publisher: name: Zenodo
Year: 2020

description: The archive contains a snapshot of the leaderboard and the challenge overview of the platform crowdai.org corresponding to https://www.crowdai.org/challenges/opensnp-height-prediction/leaderboards and https://www.crowdai.org/challenges/opensnp-height-prediction
Scrambling and Entangling Spinning Particles
Creators: name: Hung, Ling-Yan
name: Ji, Kaixin
name: Wang, Tianheng
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper we revisit the gravitational eikonal amplitudes of two scattering spinning particles and inspect their scrambling power in the spin spaces that is quantified through the tripartite information. We found that in the non-relativistic limit and a special high-energy limit the leading contribution is a quantity that is universal and theory independent. The minimal coupling is singled out with minimal scrambling in a different high momenta limit. We also inspected the initial state dependence of entanglement generation and found that the spin coherent state with vanishing spin may not necessarily be the hardest to entangle. Interestingly, among a family of mixed states, the only P-rep state there known to be the best approximation of classical mixed states was singled out as one with minimal entanglement generated.
description: 24 pages + appendix, 4 figures
Results of water balance measurements in a sandy and silty-loam soil profile using lysimeters
Creators: name: TALL, A.
name: PAVELKOVÁ, D.
Publisher: name: Polish Academy of Sciences Committee on Agronomic Sciences Section of Land Reclamation and Environmental Engineering in Agriculture; Institute of Technology and Life Sciences
Year: 2020
Subjects: precipitation
lysimeter study
water balance
evapotranspiration

description: Journal of Water and Land Development - is a peer reviewed research journal published in English. Journal has been published continually since 1998. From 2013, the journal is published quarterly in the spring, summer, autumn, and winter. In 2011 and 2012 the journal was published twice a year, and between 1998 and 2010 it was published as a yearbook. . Papers may report the results of experiments, theoretical analyses, design of machines and mechanization systems, processes or processing methods, new materials, new measurements methods or new ideas in information technology.
 The Journal of Water and Land Development is the quarterly journal devoted to the publication of papers dealing with the following subjects: - development of water resources in small river basins: assessment of surface and ground water resources, drought and floods, the methods of assessment of man activity influence on water resources; - sustainable development of agricultural landscape: farm arrangement, wetlands protection, the role of forest and grassland; - protection of water resources quality: non-point contamination from agriculture, villages and farms, methods of surface and ground water pro-tection; - irrigation and drainage: management, maintenance and operation, water use, water-crop relations, the influence of drainage and irrigation on environment; - hydraulic structures for water management in small basins, earth structures, river conservation, etc.
 Journal Metrics
Cite Score 1.55 Index Copernicus Value 132.77 SCImago Journal Rank 0.401 Scource Normalized Impact per Paper 1.389
From spin-polarized interfaces to giant magnetoresistance in organic spin valves
Creators: name: Çakır, Deniz
name: Otálvaro, Diana M.
name: Brocks, Geert
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We calculate the spin-polarized electronic transport through a molecular bilayer spin valve from first principles, and establish the link between the magnetoresistance and the spin-dependent inter- actions at the metal-molecule interfaces. The magnetoresistance of a Fe|bilayer-C70|Fe spin valve attains a high value of 70% in the linear response regime, but it drops sharply as a function of the applied bias. The current polarization has a value of 80% in linear response, and also decreases as a function of bias. Both these trends can be modelled in terms of prominent spin-dependent Fe|C70 interface states close to the Fermi level, unfolding the potential of spinterface science to control and optimize spin currents.
description: 13 pages, 5 figures
Fire Modelling
Creators: name: STRESS S.C.A.R.L.
name: S.P.A., Rina Consulting
Publisher: name: Zenodo
Year: 2019
Subjects: re4 project
CDW materials
reuse
recycling
fire modelling
building refurbishment
prefabricated elements

description: This project deliverable describes the outcome of the Subtask 3.4.3, based on thermal
 and thermal-structural simulations, able to replicate the fire test described in
 the ISO 834, and performed on the structure named as Timber Façade and
 Sandwich Panel. The aim of the activity is to define their fire resistance.
A Federated Learning-enabled Smart Street Light Monitoring Application: Benefits and Future Challenges
Creators: name: Anand, Diya
name: Mavromatis, Ioannis
name: Carnelli, Pietro
name: Khan, Aftab
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Data-enabled cities are recently accelerated and enhanced with automated learning for improved Smart Cities applications. In the context of an Internet of Things (IoT) ecosystem, the data communication is frequently costly, inefficient, not scalable and lacks security. Federated Learning (FL) plays a pivotal role in providing privacy-preserving and communication efficient Machine Learning (ML) frameworks. In this paper we evaluate the feasibility of FL in the context of a Smart Cities Street Light Monitoring application. FL is evaluated against benchmarks of centralised and (fully) personalised machine learning techniques for the classification task of the lampposts operation. Incorporating FL in such a scenario shows minimal performance reduction in terms of the classification task, but huge improvements in the communication cost and the privacy preserving. These outcomes strengthen FL's viability and potential for IoT applications.
description: Accepted for publication at ACM MobiCom 2022 - (MORSE Workshop)
Elliptic and triangular flow of (multi-)strange hadrons and $ϕ$ mesons in BES-II energies at STAR
Creators: name: Liu, Like
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: In these proceedings, we present the measurements of elliptic ($v_2$) and triangular ($v_3$) flow of (multi-)strange hadrons and $ϕ$ mesons in 19.6 and 14.6 GeV Au+Au collisions from STAR. The number of constituent quark (NCQ) scaling of $v_2$ and $v_3$ holds well at $\sqrt{ s_{\mathrm{ NN }} } $ = 19.6 GeV, which indicates the collective flow is built up in the partonic stage. At these energies, the anti-particles show better NCQ scaling than the particles for both $v_2$ and $v_3$, which may be caused by the different contributions from the produced and transported quarks.
description: 4 pages, 4 figures, 20th International Conference on Strangeness in Quark Matter 2022
Grain Boundary Effects in Dealloying Metals: A Multi-Phase Field Study
Creators: name: Bieberdorf, Nathan
name: Asta, Mark D.
name: Capolungo, Laurent
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A multi-phase field model is employed to study the microstructural evolution of an alloy undergoing liquid dealloying. The model proposed extends upon the original approach of Geslin et al. to consider dealloying in the presence of grain boundaries. The model is implemented using a semi-implicit time stepping algorithm using spectral methods, which enables simulating large 2D and 3D domains over long time-scales while still maintaining a realistic interfacial thickness. The model is exercised to demonstrate a mechanism of coupled grain-boundary migration to maintain equilibrium contact angles with this topologically-complex solid-liquid interface during dealloying. This mechanism locally accelerates dealloying by dissolving the less noble alloy metal from (and rejecting the more noble metal into) the migrating grain boundary, thereby enhancing the diffusion-coupled-growth of the liquid channel into the precursor. The deeper corrosion channel at the migrating grain boundary asymmetrically disrupts the ligament connectivity of the final dealloyed structure, in qualitative agreement with published experimental observations. It is shown that these grain boundary migration-assisted corrosion channels form even for precursors with small amounts of the dissolving alloy species, below the so-called \textit{parting limit}