cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Genome-wide association study of growth traits in meat pigeons
Creators: name: Hou, haobin
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 300301
subject: Animal growth and development
classificationCode: 300305
subject: Animal reproduction and breeding

description: 通过全基因组关联研究（GWAS）鉴定生长和屠宰性状的功能基因和分子标记，有助于阐明其潜在的分子机制，并为肉鸽的选择性育种提供理论依据。收集556只肉鸽在52周龄和80周龄的体重（BW）和体型（BS）表型数据。160,434高质量的单核苷酸多态性位点 （RAD-Seq）。 GWAS分析显示，MSTN、IGF2BP3和NCAPG/LCORL是影响肉鸽生长性状的重要候选基因。IGF2BP3和NCAPG/LCORL高度相关与BW和BS整体生长发育有关， 而MSTN与胸厚度和BW相关。
Vacuum stability in the Standard Model with vector-like fermions
Creators: name: Arsenault, Ash
name: Cingiloglu, Kivanc Y.
name: Frank, Mariana
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The discovery of Standard-Model like Higgs at 125 GeV may raise more questions than the answers it provides. In particular, the hierarchy problem remains unsolved, and the Standard Model Higgs quartic self-coupling becomes negative below the Planck scale, necessitating new physics beyond the Standard Model. In this work we investigate a popular scenario, extensions of the Standard Model with vector-like fermion fields, such as the ones present in models with extra dimensions or in Higgs composite models, using a model independent approach. Since fermions decrease the Higgs quartic coupling at high energies, only exacerbating the self-coupling problem, we introduce first an additional scalar, which by itself is enough to overcome the vacuum stability limit, and then explore the effects of vector-like fermions in singlet, doublet and triplet representations. For each model, we identify the allowed fermion masses and mixing angles with the third family fermions required to satisfy the vacuum stability condition, and compare different representations. Allowed fermion masses emerge at around 1 TeV, raising hope that these will be found at the LHC. We also examine corrections to oblique parameters S and T from additional scalar and vector-like quarks which also impose constraints on mixing and mass splitting of both sectors., but these restrictions are relatively weak compared to the vacuum stability.
description: 27 pages, 12 figures
Unidirectional Spin Hall Magnetoresistance in Antiferromagnetic Heterostructures
Creators: name: Cheng, Yang
name: Tang, Junyu
name: Michel, Justin J.
name: Chong, Su Kong
name: Yang, Fengyuan
name: Cheng, Ran
name: Wang, Kang L.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Unidirectional spin Hall magnetoresistance (USMR) has been widely reported in the heavy metal / ferromagnet (HM/FM) bilayer systems. We observe the USMR in the Pt/α-Fe2O3 bilayers where the α-Fe2O3 is an antiferromagnetic (AFM) insulator. Systematic field and temperature dependent measurements confirm the magnonic origin of the USMR. The appearance of AFM-USMR is driven by the imbalance of creation and annihilation of AFM magnons by spin orbit torque due to thermal random field. However, unlike its ferromagnetic counterpart, theoretical modeling reveals that the USMR in Pt/α-Fe2O3 is determined by the antiferromagtic magnon number, and with a non-monotonic field dependence. Our findings extend the generality of the USMR which pave the ways for the highly sensitive detection of AF spin state.
Homogeneous Solutions of Pluriclosed Flow on Closed Complex Surfaces
Creators: name: Boling, Jess
Publisher: name: arXiv
Year: 2014
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: Streets and Tian introduced a parabolic flow of pluriclosed metrics. We classify the long time behavior of homogeneous solutions of this flow on closed complex surfaces including minimal Hopf, Inoue, Kodaira, and non-Kahler, properly elliptic surfaces. We also construct expanding soliton solutions to the flow on the universal covers of these surfaces by taking blowdown limits of these homogeneous solutions.
description: 19 pages, feedback welcome, minor corrections and format changes
Production and ratio of $π$, K, p and $Λ$ in Pb + Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV
Creators: name: Zhang, S.
name: Han, L. X.
name: Ma, Y. G.
name: Chen, J. H.
name: Zhong, C.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The particle production and their ratios for $π$, $K$, $p$, and $Λ$ are studied in Pb + Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV based on a blast-wave model with thermal equilibrium mechanism. The transverse momentum spectra of the above mentioned particles at the kinetic freeze-out stage are discussed. The modification of the inverse slope of pion transverse momentum spectrum due to resonance decay has also been investigated. In addition, we found that the anti-particles to particles ratio as well as kaons to pions ratio agree with the data by the LHC-ALICE Collaboration reasonably well, while the $p/π$ ratio is overestimated by a factor of 1.5, similar to those from other thermal model calculations. It is found that the ratios of $p/π$ and $K/π$ are dominated by the radial flow but slightly affected by the baryon chemical potential. Our study thus constrains the parameters at the chemical and kinetic freeze-out stages within the framework of thermal model in Pb + Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV, and will help better understand the properties of the dense and hot matter created in high-energy heavy-ion collisions at freeze-out stage.
description: 9 pages, 5 figures and 1 table
Search for the Higgs boson pair production in the $b\bar{b}μ^+μ^-$ final state at the LHC
Creators: name: Guo, Botao
name: Sun, Xiaohu
name: Zhang, Licheng
name: Li, Zhe
name: Ban, Yong
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The Higgs boson pair production via gluon-gluon fusion and vector boson fusion in the $b\bar{b}μ^+μ^-$ final state at the LHC is studied to probe the Higgs self-coupling $κ_λ$ and the four-boson HHVV coupling $κ_{\rm{2V}}$ for the first time. A cut-based analysis and a machine learning analysis using boosted decision trees are performed with categorizations and optimizations depending on the variations of these couplings. The expected sensitivities are extracted with different integrated luminosities assumed up to the full HL-LHC runs. The expected upper limit at 95\% confidence level on the HH production is calculated as 47 (28) times the Standard Model cross-section using the cut-based method (boosted decision trees) for the gluon-gluon fusion production, and 928 for the vector boson fusion production, assuming an integrated luminosity of 3000 fb$^{-1}$. The expected constraints on the couplings at 95\% confidence level are calculated to be $-13.8< κ_λ< 19.1$ ($-10.0< κ_λ< 15.5$) and $-3.4< κ_{\rm{2V}}< 5.5$ using the cut-based method (boosted decision trees), respectively, assuming an integrated luminosity of 3000 fb$^{-1}$.
Farm Bill 2018: Guide to Proposed Changes to Supplemental Nutrition Assistance Program Work Requirements
Creators: name: Zaki, Mary
Publisher: name: Digital Repository at the University of Maryland
Year: 2018
Subjects: Supplemental Nutrition Assistance Program
Farm Bill
SNAP

description: This table highlights the differences between the U.S. Agricultural Act of 2014 and the proposed versions of the 2018 Farm Bill, noting the version being debated in the House of Representatives versus the Senate.
Cannibals in the thick disk II -- Radial-velocity monitoring of the young alpha-rich stars
Creators: name: Jofre, P.
name: Jorissen, A.
name: Aguilera-Gomez, C.
name: Van Eck, S.
name: Tayar, J.
name: Pinsonneault, M.
name: Zinn, J.
name: Goriely, S.
name: Van Winckel, H.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Determining ages of stars for reconstructing the history of the Milky Way remains one of the most difficult tasks in astrophysics. This involves knowing when it is possible to relate the stellar mass with its age and when it is not. The young $α-$rich (YAR) stars present such a case in which we are still not sure about their ages because they are relatively massive, implying young ages, but their abundances are $α-$enhanced, which implies old ages. We report the results from new observations from a long-term radial-velocity-monitoring campaign complemented with high-resolution spectroscopy, as well as new astrometry and seismology of a sample of 41 red giants from the third version of APOKASC, which includes YAR stars. The aim is to better characterize the YAR stars in terms of binarity, mass, abundance trends, and kinematic properties.The radial velocities of HERMES, APOGEE, and Gaia were combined to determine the binary fraction among YAR stars. In combination with their mass estimate, evolutionary status, chemical composition, and kinematic properties, it allowed us to better constrain the nature of these objects. We found that stars with $\mathrm{M} < 1 \mathrm{M}_\odot$ were all single, whereas stars with $\mathrm{M} > 1 \mathrm{M}_\odot$ could be either single or binary. This is in agreement with theoretical predictions of population synthesis models. Studying their [C/N], [C/Fe], and [N/Fe], trends with mass, it became clear that many YAR stars do not follow the APOKASC stars, favoring the scenario that most of them are the product of mass transfer. Abr.
description: Accepted in A&A
PdBI Cold Dust Imaging of Two Extremely Red H-[4.5]>4 Galaxies Discovered with SEDS and CANDELS
Creators: name: Caputi, Karina I.
name: Michalowski, Michal J.
name: Krips, Melanie
name: Geach, James E.
name: Ashby, Matthew L. N.
name: Huang, Jiasheng
name: Fazio, Giovanni G.
name: Koekemoer, Anton M.
name: Popping, Gergo
name: Spaans, Marco
name: Castellano, Marco
name: Dunlop, James S.
name: Fontana, Adriano
name: Santini, Paola
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We report Plateau de Bure Interferometer (PdBI) 1.1 mm continuum imaging towards two extremely red H-[4.5]>4 (AB) galaxies at z>3, which we have previously discovered making use of Spitzer SEDS and Hubble Space Telescope CANDELS ultra-deep images of the Ultra Deep Survey field. One of our objects is detected on the PdBI map with a 4.3 sigma significance, corresponding to Snu(1.1mm)=(0.78 +/- 0.18) mJy. By combining this detection with the Spitzer 8 and 24 micron photometry for this source, and SCUBA2 flux density upper limits, we infer that this galaxy is a composite active galactic nucleus/star-forming system. The infrared (IR)-derived star formation rate is SFR~(200 +/- 100) Msun/yr, which implies that this galaxy is a higher-redshift analogue of the ordinary ultra-luminous infrared galaxies (ULIRGs) more commonly found at z~2-3. In the field of the other target, we find a tentative 3.1 sigma detection on the PdBI 1.1 mm map, but 3.7 arcsec away of our target position, so it likely corresponds to a different object. In spite of the lower significance, the PdBI detection is supported by a close SCUBA2 3.3 sigma detection. No counterpart is found on either the deep SEDS or CANDELS maps, so, if real, the PdBI source could be similar in nature to the sub-millimetre source GN10. We conclude that the analysis of ultra-deep near- and mid-IR images offers an efficient, alternative route to discover new sites of powerful star formation activity at high redshifts.
description: 7 pages, 7 figures, 1 table. Updated to match version in press at ApJ
Synthesizing a $\hatσ_z$ spin-dependent force for optical, metastable, and ground state trapped-ion qubits
Creators: name: Băzăvan, O.
name: Saner, S.
name: Minder, M.
name: Hughes, A. C.
name: Sutherland, R. T.
name: Lucas, D. M.
name: Srinivas, R.
name: Ballance, C. J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: A single bichromatic field near-resonant to a qubit transition is typically used for $\hatσ_x$ or $\hatσ_y$ Mølmer-Sørensen type interactions in trapped ion systems. Using this field configuration, it is also possible to synthesize a $\hatσ_z$ spin-dependent force by merely adjusting the beat-note frequency. Here, we expand on previous work and present a comprehensive theoretical and experimental investigation of this scheme with a laser near-resonant to a quadrupole transition in $^{88}$Sr$^+$. Further, we characterise its robustness to optical phase and qubit frequency offsets, and demonstrate its versatility by entangling optical, metastable, and ground state qubits.
description: O. B\u{a}z\u{a}van and S. Saner contributed equally to this work
Arctic melt ponds and bifurcations in the climate system
Creators: name: Sudakov, Ivan
name: Vakulenko, Sergey A.
name: Golden, Kenneth M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences
subject: 80-xx, 86-xx

description: Understanding how sea ice melts is critical to climate projections. In the Arctic, melt ponds that develop on the surface of sea ice floes during the late spring and summer largely determine their albedo -- a key parameter in climate modeling. Here we explore the possibility of a conceptual sea ice climate model passing through a bifurcation point -- an irreversible critical threshold as the system warms, by incorporating geometric information about melt pond evolution. This study is based on a bifurcation analysis of the energy balance climate model with ice - albedo feedback as the key mechanism driving the system to bifurcation points.
Signatures of alpha clustering in light nuclei from relativistic nuclear collisions
Creators: name: Broniowski, Wojciech
name: Arriola, Enrique Ruiz
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We argue that relativistic nuclear collisions may provide experimental evidence of alpha clustering in light nuclei. A light alpha-clustered nucleus has a large intrinsic deformation. When collided against a heavy nucleus at very high energies, this deformation transforms into the deformation of the fireball in the transverse plane. The subsequent collective evolution of the fireball leads to harmonic flow reflecting the deformation of the initial shape, which can be measured with standard methods of relativistic heavy-ion collisions. We illustrate the feasibility of the idea by modeling the 12C-208Pb collisions and point out that very significant quantitative and qualitative differences between the alpha-clustered and uniform 12C nucleus occur in such quantities as the triangular flow, its event-by-event fluctuations, or the correlations of the elliptic and triangular flows. The proposal offers a possibility of studying low-energy nuclear phenomena with "snapshots" made with relativistic heavy-ion collisions.
description: 5 pages, 4 figures, shortened version with enhanced discussion, accepted to PRL
Hall-effect Controlled Gas Dynamics in Protoplanetary Disks: I. Wind Solutions at the Inner Disk
Creators: name: Bai, Xue-Ning
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The gas dynamics of protoplanetary disks (PPDs) is largely controlled by non-ideal magnetohydrodynamic (MHD) effects including Ohmic resistivity, the Hall effect and ambipolar diffusion. Among these the role of the Hall effect is the least explored and most poorly understood. We have included all three non-ideal MHD effects in a self-consistent manner to investigate the role of the Hall effect on PPD gas dynamics using local shearing-box simulations. In this first paper, we focus on the inner region of PPDs, where previous studies excluding the Hall effect have revealed that the inner disk up to ~10 AU is largely laminar, with accretion driven by a magnetocentrifugal wind. We confirm this basic picture and show that the Hall effect introduces modest modifications to the wind solutions, depending on the polarity of the large-scale poloidal magnetic field B_0 threading the disk. When B_0.Omega>0, the horizontal magnetic field is strongly amplified toward the disk interior, leading to a stronger disk wind (by ~50% or less in terms of the wind-driven accretion rate). The enhanced horizontal field also leads to much stronger large-scale Maxwell stress (magnetic braking) that contributes to a considerable fraction of the wind-driven accretion rate. When B_0.Omega<0, the horizontal magnetic field is reduced, leading to a weaker disk wind (by ~20%) and negligible magnetic braking. Moreover, we find that when B_0.Omega>0, the laminar region extends farther to ~15 AU before the magneto-rotational instability sets in, while for B_0.Omega<0, the laminar region extends only to ~3-5 AU for a typical PPD accretion rates. Scaling relations for the wind properties, especially the wind-driven accretion rate, are provided for aligned and anti-aligned field geometries. Issues with the symmetry of the wind solutions and grain abundance are also discussed.
description: 24 pages, 12 figures, resubmitted to ApJ
Using (1 + 1)D Quantum Cellular Automata for Exploring Collective Effects in Large Scale Quantum Neural Networks
Creators: name: Gillman, Edward
name: Carollo, Federico
name: Lesanovsky, Igor
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Central to the field of quantum machine learning is the design of quantum perceptrons and neural network architectures. A key question in this regard is the impact of quantum effects on the way in which such models process information. Here, we approach this question by establishing a connection between $(1+1)D$ quantum cellular automata, which implement a discrete nonequilibrium quantum many-body dynamics through the successive application of local quantum gates, and recurrent quantum neural networks, which process information by feeding it through perceptrons interconnecting adjacent layers. This relation allows the processing of information in quantum neural networks to be studied in terms of the properties of their equivalent cellular automaton dynamics. We exploit this by constructing a class of quantum gates (perceptrons) that allow for the introduction of quantum effects, such as those associated with a coherent Hamiltonian evolution, and establish a rigorous link to continuous-time Lindblad dynamics. We further analyse the universal properties of a specific quantum cellular automaton, and identify a change of critical behavior when quantum effects are varied, demonstrating that they can indeed affect the collective dynamical behavior underlying the processing of information in large-scale neural networks.
description: main text: 6 pages, 3 figures; supplemental materials: 10 pages, 4 figures; additional files: 3 data files, 1 example script for data loading
Fast quantum circuit cutting with randomized measurements
Creators: name: Lowe, Angus
name: Medvidović, Matija
name: Hayes, Anthony
name: O'Riordan, Lee J.
name: Bromley, Thomas R.
name: Arrazola, Juan Miguel
name: Killoran, Nathan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a new method to extend the size of a quantum computation beyond the number of physical qubits available on a single device. This is accomplished by randomly inserting measure-and-prepare channels to express the output state of a large circuit as a separable state across distinct devices. Our method employs randomized measurements, resulting in a sample overhead that is $\widetilde{O}(4^k / \varepsilon ^2)$, where $\varepsilon $ is the accuracy of the computation and $k$ the number of parallel wires that are "cut" to obtain smaller sub-circuits. We also show an information-theoretic lower bound of $Ω(2^k / \varepsilon ^2)$ for any comparable procedure. We use our techniques to show that circuits in the Quantum Approximate Optimization Algorithm (QAOA) with $p$ entangling layers can be simulated by circuits on a fraction of the original number of qubits with an overhead that is roughly $2^{O(pκ)}$, where $κ$ is the size of a known balanced vertex separator of the graph which encodes the optimization problem. We obtain numerical evidence of practical speedups using our method applied to the QAOA, compared to prior work. Finally, we investigate the practical feasibility of applying the circuit cutting procedure to large-scale QAOA problems on clustered graphs by using a $30$-qubit simulator to evaluate the variational energy of a $129$-qubit problem as well as carry out a $62$-qubit optimization.
description: 9 pages, 6 figures
Freely available and validated, Digital Calibration Certificates (DCC) starter kit for DCC implementation; containing step-by-step guidance for the creation, practical implementation and secure delivery of temperature and pressure DCCs
Creators: name: Baslev-Harder, David
name: Bošnjaković, Alen
name: Brown, Clifford
name: Hutzschenreuter, Daniel
name: Karkkainen, Anu
name: Keidel Anke
name: Lillepea, Lauri
name: Østergaard, Peter
name: Vahi, Jaanus
Publisher: name: Zenodo
Year: 2023
Subjects: Digital Calibration Certificate
metrology
calibration
capacity building
guideline
EMPIR

description: These documents produce a practical guidance for metrology institutes to be able to start working with Digital Calibration Certificates (DCCs). It is a starter kit for DCC implementation, containing step-by-step guidance for the creation, practical implementation and secure delivery of DCCs. The DCC starter kit will be focussed on the community of small and emerging National Metrology Institutes and Designated Institutes and will consider the large number of calibration certificate types issued and their wide range of applications. The applicability of the DCC starter kit has been validated by the project partners in EMPIR DCC2GO through application in the domain of temperature and pressure calibration.

The work is deliverable D2 of EMPIR project 21SCP01 (DCC2GO).
description: This project (21SCP01, DCC2GO) has received funding from the EMPIR programme co-financed by the Participating States and from the European Union's Horizon 2020 research and innovation programme.
Multicritical Phase Transitions in Multiply Rotating Black Holes
Creators: name: Wu, Jerry
name: Mann, Robert B.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that multi-critical points in which more than three phases coalesce are present in multiply rotating Kerr-AdS black holes in $d$-dimensions. We explicitly present a quadruple point for a triply rotating black hole in $d=8$ and a quintuple point for a quadruply rotating black hole in $d=10$. The maximal number of distinct phases $n$ is one larger than the maximal number of independent rotations, and we outline a method for obtaining the associated $n$-tuple point. Situations also exist where more than three phases merge at sub-maximal multi-critical points. Our results show that multi-critical points in black hole thermodynamics are more common than previously thought, with systems potentially supporting many phases as long as a sufficient number of thermodynamic variables are present.
description: Latex, 5 pages, 5 figures
Calculation of geometric phases in electric dipole searches with trapped spin-1/2 particles based on direct solution of the Schrödinger equation
Creators: name: Steyerl, A.
name: Kaufman, C.
name: Müller, G.
name: Malik, S. S.
name: Desai, A. M.
name: Golub, R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Pendlebury $\textit{et al.}$ [Phys. Rev. A $\textbf{70}$, 032102 (2004)] were the first to investigate the role of geometric phases in searches for an electric dipole moment (EDM) of elementary particles based on Ramsey-separated oscillatory field magnetic resonance with trapped ultracold neutrons and comagnetometer atoms. Their work was based on the Bloch equation and later work using the density matrix corroborated the results and extended the scope to describe the dynamics of spins in general fields and in bounded geometries. We solve the Schrödinger equation directly for cylindrical trap geometry and obtain a full description of EDM-relevant spin behavior in general fields, including the short-time transients and vertical spin oscillation in the entire range of particle velocities. We apply this method to general macroscopic fields and to the field of a microscopic magnetic dipole.
description: 11 pages, 4 figures
The Rise of GoodFATR: A Novel Accuracy Comparison Methodology for Indicator Extraction Tools
Creators: name: Caballero, Juan
name: Gomez, Gibran
name: Matic, Srdjan
name: Sánchez, Gustavo
name: Sebastián, Silvia
name: Villacañas, Arturo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: To adapt to a constantly evolving landscape of cyber threats, organizations actively need to collect Indicators of Compromise (IOCs), i.e., forensic artifacts that signal that a host or network might have been compromised. IOCs can be collected through open-source and commercial structured IOC feeds. But, they can also be extracted from a myriad of unstructured threat reports written in natural language and distributed using a wide array of sources such as blogs and social media. There exist multiple indicator extraction tools that can identify IOCs in natural language reports. But, it is hard to compare their accuracy due to the difficulty of building large ground truth datasets. This work presents a novel majority vote methodology for comparing the accuracy of indicator extraction tools, which does not require a manually-built ground truth. We implement our methodology into GoodFATR, an automated platform for collecting threat reports from a wealth of sources, extracting IOCs from the collected reports using multiple tools, and comparing their accuracy. GoodFATR supports 6 threat report sources: RSS, Twitter, Telegram, Malpedia, APTnotes, and ChainSmith. GoodFATR continuously monitors the sources, downloads new threat reports, extracts 41 indicator types from the collected reports, and filters non-malicious indicators to output the IOCs. We run GoodFATR over 15 months to collect 472,891 reports from the 6 sources; extract 978,151 indicators from the reports; and identify 618,217 IOCs. We analyze the collected data to identify the top IOC contributors and the IOC class distribution. We apply GoodFATR to compare the IOC extraction accuracy of 7 popular open-source tools with GoodFATR's own indicator extraction module.
Αναδρομική μελέτη του φαινομένου της πολυφαρμακίας σε ασθενείς βαρέως πάσχοντες με Covid-19
Creators: name: Ξεφτέρη, Τριανταφυλλιά Αναστάσιου
Publisher: name: Aristotle University of Thessaloniki
Year: 2024
Subjects: Πολυφαρμακία
Covid-19
Μονάδα εντατικής θεραπείας
Polypharmacy
Intensive care unit

description: Οι ασθενείς των μονάδων εντατικής θεραπείας (Μ.Ε.Θ) παρουσιάζουν μία ή περισσότερες ασθένειες για τις οποίες λαμβάνουν διαφορετικά φάρμακα. Η ταυτόχρονη παρακολούθησή τους από ιατρούς διαφόρων ειδικοτήτων έχει σαν αποτέλεσμα να αυξάνεται ο αριθμός των φαρμάκων της θεραπευτικής αγωγής τους. Η πολυφαρμακία παρουσιάζεται εντονότερα στην κατηγορία των αντιβιοτικών φαρμάκων. Οι αλληλοεπιδράσεις ανάμεσα στα φάρμακα που λαμβάνει ο ασθενής, αποτελούν τον πιο επικίνδυνο παράγοντα για πρόκληση σοβαρών παρενεργειών, οι οποίες μπορεί να είναι πολύ χειρότερες από τις νόσους που προσπαθούν να θεραπεύσουν. Η πολυφαρμακία για τους επιστήμονες υγείας αποτελεί επιτακτική ανάγκη για άρτια γνώση και συνεχής ενημέρωση για τα φαρμακευτικά σκευάσματα που χορηγούν καθώς και των αλληλεπιδράσεων μεταξύ διαφορετικών φαρμάκων, ώστε να επιτευχθεί η ιδανικότερη για κάθε ασθενή θεραπευτική στρατηγική. Η παρούσα μελέτη έλαβε χώρα στη Μονάδα Εντατικής Θεραπείας του Γενικού Νοσοκομείου Χαλκιδικής, προσπαθώντας να ερευνήσει αν υπάρχει πολυφαρμακία στους ασθενείς με Covid-19, καθώς και ποσοστό θνησιμότητας. Η έρευνα έγινε με 100 φακέλους ασθενών (μελέτη κοόρτης). Τα αποτελέσματα έδειξαν αυξημένη πολυφαρμακία καθώς και μεγάλο ποσοστό θνησιμότητας των ασθενών με Covid-19, που είχαν νοσηλευτεί στην Μονάδα Εντατικής Θεραπείας του ΓΝ Χαλκιδικής.
description: Intensive care unit (ICU) patients present with one or more illness for which they receive different medications. Their simultaneous monitoring by doctors of various specialties has the effect of increasing the number of drugs in their treatment. Polypharmacy is more pronounced in the category of antibiotic drugs. Interactions between the drugs that the patient is taking are the most dangerous factor in causing serious side effects or which can be much worse than the diseases they are trying to treat. Polypharmacy for health scientists is an imperative for thorough knowledge and continuous information about the pharmaceutical preparations they administer as well as the interactions between different drugs, in order to achieve the most ideal therapeutic strategy for each patient. The present study took place in the Intensive Care Unit of the Halkidiki General Hospital, trying to investigate whether there is polypharmacy in patients with Covid-19, as well as the mortality rate. The research was done with 100 patients files (cohort study). The results showed increased polypharmacy as well as a high mortality rate of patients with Covid- 19, who had been hospitalized in the ICU of the General Hospital of Halkidiki.
Priorities of Health Research in India
Creators: name: Koley, Moumita
Publisher: name: Zenodo
Year: 2023
Subjects: Disease Burden, Public Health, Publication, DALYS, India,

description: This presentation looks into whether India's research efforts address the country's health needs. It does so by investigating the degree of alignment between burden of diseases in India and knowledge production in health and biomedical sciences by Indian institutions. WHO data from Global Health Estimates on Disability-Adjusted Life Years (DALYs) is used as the indicator of disease burden, and number of publications in the Web of Science as the proxy measure of research efforts.
We find that the alignment between publications and DALYs of India is much lower than in High-Income Countries (HICs) and lower than in countries such as China or Brazil. This is due to some disease areas having little research in relation to their burden, while others receiving high attention in spite of low burden. For example, cardiovascular and respiratory diseases contribute to ~23% of the disease burden in India, but their publication share is ~6% of the total publications. In contrast, cancer diseases contribute to ~5 % of the burden, while their publication share is almost 25%. 
We discuss some of the major driving factors behind this misalignment such the market demand associated with the diseases prevalent in HICs, the academic prestige of certain disease areas, and funding opportunities in global health. We also explore where the misalignment is likely to be mainly due to weaknesses in healthcare delivery systems in India (e.g., in neonatal conditions), rather than lack of research.
Self-supervised learning with rotation-invariant kernels
Creators: name: Zheng, Léon
name: Puy, Gilles
name: Riccietti, Elisa
name: Pérez, Patrick
name: Gribonval, Rémi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: We introduce a regularization loss based on kernel mean embeddings with rotation-invariant kernels on the hypersphere (also known as dot-product kernels) for self-supervised learning of image representations. Besides being fully competitive with the state of the art, our method significantly reduces time and memory complexity for self-supervised training, making it implementable for very large embedding dimensions on existing devices and more easily adjustable than previous methods to settings with limited resources. Our work follows the major paradigm where the model learns to be invariant to some predefined image transformations (cropping, blurring, color jittering, etc.), while avoiding a degenerate solution by regularizing the embedding distribution. Our particular contribution is to propose a loss family promoting the embedding distribution to be close to the uniform distribution on the hypersphere, with respect to the maximum mean discrepancy pseudometric. We demonstrate that this family encompasses several regularizers of former methods, including uniformity-based and information-maximization methods, which are variants of our flexible regularization loss with different kernels. Beyond its practical consequences for state-of-the-art self-supervised learning with limited resources, the proposed generic regularization approach opens perspectives to leverage more widely the literature on kernel methods in order to improve self-supervised learning methods.
Learning to Grasp on the Moon from 3D Octree Observations with Deep Reinforcement Learning
Creators: name: Orsula, Andrej
name: Bøgh, Simon
name: Olivares-Mendez, Miguel
name: Martinez, Carol
Publisher: name: arXiv
Year: 2022
Subjects: subject: Robotics (cs.RO)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Extraterrestrial rovers with a general-purpose robotic arm have many potential applications in lunar and planetary exploration. Introducing autonomy into such systems is desirable for increasing the time that rovers can spend gathering scientific data and collecting samples. This work investigates the applicability of deep reinforcement learning for vision-based robotic grasping of objects on the Moon. A novel simulation environment with procedurally-generated datasets is created to train agents under challenging conditions in unstructured scenes with uneven terrain and harsh illumination. A model-free off-policy actor-critic algorithm is then employed for end-to-end learning of a policy that directly maps compact octree observations to continuous actions in Cartesian space. Experimental evaluation indicates that 3D data representations enable more effective learning of manipulation skills when compared to traditionally used image-based observations. Domain randomization improves the generalization of learned policies to novel scenes with previously unseen objects and different illumination conditions. To this end, we demonstrate zero-shot sim-to-real transfer by evaluating trained agents on a real robot in a Moon-analogue facility.
description: Accepted for publication at the 2022 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS) | The source code is available at https://github.com/AndrejOrsula/drl_grasping | The supplementary video is available at https://youtube.com/watch?v=FZSoOkK6VFc
Universal behavior of the Shannon and Rényi mutual information of quantum critical chains
Creators: name: Alcaraz, F. C.
name: Rajabpour, M. A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the Shannon and Rényi mutual information (MI) in the ground state (GS) of different critical quantum spin chains. Despite the apparent basis dependence of these quantities we show the existence of some particular basis (we will call them conformal basis) whose finite-size scaling function is related to the central charge $c$ of the underlying conformal field theory of the model. In particular, we verified that for large index $n$, the MI of a subsystem of size $\ell$ in a periodic chain with $L$ sites behaves as $\frac{c}{4}\frac{n}{n-1}\ln\Big{(}\frac{L}π\sin(\frac{π\ell}{L})\Big{)}$, when the ground-state wavefunction is expressed in these special conformal basis. This is in agreement with recent predictions. For generic local basis we will show that, although in some cases $b_n\ln\Big{(}\frac{L}π\sin(\frac{π\ell}{L})\Big{)}$ is a good fit to our numerical data, in general there is no direct relation between $b_n$ and the central charge of the system. We will support our findings with detailed numerical calculations for the transverse field Ising model, $Q=3,4$ quantum Potts chain, quantum Ashkin-Teller chain and the XXZ quantum chain. We will also present some additional results of the Shannon mutual information ($n=1$), for the parafermionic $Z_Q$ quantum chains with $Q=5,6,7$ and $8$.
description: 11 Pages, 12 figures, v2: a new figure added and some other minor additions
A substantial population of massive quiescent galaxies at z~4 from ZFOURGE
Creators: name: Straatman, Caroline M. S.
name: Labbé, Ivo
name: Spitler, Lee R.
name: Allen, Rebecca
name: Altieri, Bruno
name: Brammer, Gabriel B.
name: Dickinson, Mark
name: van Dokkum, Pieter
name: Inami, Hanae
name: Glazebrook, Karl
name: Kacprzak, Glenn G.
name: Kawinwanichakij, Lalit
name: Kelson, Daniel D.
name: McCarthy, Patrick J.
name: Mehrtens, Nicola
name: Monson, Andy
name: Murphy, David
name: Papovich, Casey
name: Persson, S. Eric
name: Quadri, Ryan
name: Rees, Glen
name: Tomczak, Adam
name: Tran, Kim-Vy H.
name: Tilvi, Vithal
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We report the likely identification of a substantial population of massive M~10^11M_Sun galaxies at z~4 with suppressed star formation rates (SFRs), selected on rest-frame optical to near-IR colors from the FourStar Galaxy Evolution Survey. The observed spectral energy distributions show pronounced breaks, sampled by a set of near-IR medium-bandwidth filters, resulting in tightly constrained photometric redshifts. Fitting stellar population models suggests large Balmer/4000AA breaks, relatively old stellar populations, large stellar masses and low SFRs, with a median specific SFR of 2.9+/-1.8 x 10^-11/yr. Ultradeep Herschel/PACS 100micron, 160micron and Spitzer/MIPS 24micron data reveal no dust-obscured SFR activity for 15/19 (79%) galaxies. Two far-IR detected galaxies are obscured QSOs. Stacking the far-IR undetected galaxies yields no detection, consistent with the SED fit, indicating independently that the average specific SFR is at least 10x smaller than of typical star-forming galaxies at z~4. Assuming all far-IR undetected galaxies are indeed quiescent, the volume density is 1.8+/-0.7 x 10^-5Mpc^-3 to a limit of log10M/M_Sun>10.6, which is 10x and 80x lower than at z = 2 and z = 0.1. They comprise a remarkably high fraction (~35%) of z~4 massive galaxies, suggesting that suppression of star formation was efficient even at very high redshift. Given the average stellar age of 0.8Gyr and stellar mass of 0.8x10^11M_Sun, the galaxies likely started forming stars before z =5, with SFRs well in excess of 100M_Sun/yr, far exceeding that of similarly abundant UV-bright galaxies at z>4. This suggests that most of the star-formation in the progenitors of quiescent z~4 galaxies was obscured by dust.
description: 8 pages, 4 figures, 1 table, accepted by ApjL
Crossovers in the dynamics of supercooled liquids probed by an amorphous wall
Creators: name: Hocky, Glen M
name: Berthier, Ludovic
name: Kob, Walter
name: Reichman, David R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study the relaxation dynamics of a binary Lennard-Jones liquid in the presence of an amorphous wall generated from equilibrium particle configurations. In qualitative agreement with the results presented in Nature Phys. {\bf 8}, 164 (2012) for a liquid of harmonic spheres, we find that our binary mixture shows a saturation of the dynamical length scale close to the mode-coupling temperature $T_c$. Furthermore we show that, due to the broken symmetry imposed by the wall, signatures of an additional change in dynamics become apparent at a temperature well above $T_c$. We provide evidence that this modification in the relaxation dynamics occurs at a recently proposed dynamical crossover temperature $T_s > T_c$, which is related to the breakdown of the Stokes-Einstein relation. We find that this dynamical crossover at $T_s$ is also observed for a system of harmonic spheres as well as a WCA liquid, showing that it may be a general feature of glass-forming systems.
description: 10 pages, 8 figures
Target density effects on charge tansfer of laser-accelerated carbon ions in dense plasma
Creators: name: Ren, Jieru
name: Ma, Bubo
name: Liu, Lirong
name: Wei, Wenqing
name: Chen, Benzheng
name: Zhang, Shizheng
name: Xu, Hao
name: Hu, Zhongmin
name: Li, Fangfang
name: Wang, Xing
name: Yin, Shuai
name: Feng, Jianhua
name: Zhou, Xianming
name: Gao, Yifang
name: Li, Yuan
name: Shi, Xiaohua
name: Li, Jianxing
name: Ren, Xueguang
name: Xu, Zhongfeng
name: Deng, Zhigang
name: Qi, Wei
name: Wang, Shaoyi
name: Fan, Quanping
name: Cui, Bo
name: Wang, Weiwu
name: Yuan, Zongqiang
name: Teng, Jian
name: Wu, Yuchi
name: Cao, Zhurong
name: Zhao, Zongqing
name: Gu, Yuqiu
name: Cao, Leifeng
name: Zhu, Shaoping
name: Cheng, Rui
name: Lei, Yu
name: Wang, Zhao
name: Zhou, Zexian
name: Xiao, Guoqing
name: Zhao, Hongwei
name: Hoffmann, Dieter H. H.
name: Zhou, Weimin
name: Zhao, Yongtao
Publisher: name: arXiv
Year: 2022
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We report on charge state measurements of laser-accelerated carbon ions in the energy range of several MeV penetrating a dense partially ionized plasma. The plasma was generated by irradiation of a foam target with laser-induced hohlraum radiation in the soft X-ray regime. We used the tri-cellulose acetate (C$_{9}$H$_{16}$O$_{8}$) foam of 2 mg/cm$^{-3}$ density, and $1$-mm interaction length as target material. This kind of plasma is advantageous for high-precision measurements, due to good uniformity and long lifetime compared to the ion pulse length and the interaction duration. The plasma parameters were diagnosed to be T$_{e}$=17 eV and n$_{e}$=4 $\times$ 10$^{20}$ cm$^{-3}$. The average charge states passing through the plasma were observed to be higher than those predicted by the commonly-used semiempirical formula. Through solving the rate equations, we attribute the enhancement to the target density effects which will increase the ionization rates on one hand and reduce the electron capture rates on the other hand. In previsous measurement with partially ionized plasma from gas discharge and z-pinch to laser direct irradiation, no target density effects were ever demonstrated. For the first time, we were able to experimentally prove that target density effects start to play a significant role in plasma near the critical density of Nd-Glass laser radiation. The finding is important for heavy ion beam driven high energy density physics and fast ignitions.
description: 7 pages, 4 figures, 35 conferences
A Cooperative Sequential Adsorption Model in Two Dimensions with Experimental Applications for Ionic Self-Assembly of Nanoparticles
Creators: name: Cook, L. Jonathan
name: Mazilu, D. A.
name: Mazilu, I.
name: Simpson, B. M.
name: Schwen, E. M.
name: Kim, V. O.
name: Seredinski, A. M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Self-assembly of nanoparticles is an important tool in nanotechnology, with numerous applications including thin films, electronics, and drug delivery. We study the deposition of ionic nanoparticles on a glass substrate both experimentally and theoretically. Our theoretical model consists of a stochastic cooperative adsorption and evaporation process on a two-dimensional lattice. By exploring the relationship between the initial concentration of nanoparticles in the colloidal solution and the density of particles deposited on the substrate, we relate the deposition rate of our theoretical model to the concentration.
description: 7 pages, 6 figures; v2: major revision
Seven-dimensional super Yang-Mills at negative coupling
Creators: name: Minahan, Joseph A.
name: Naseer, Usman
name: Thull, Charles
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the partition function for Euclidean $SU(N)$ super Yang-Mills on a squashed seven-sphere. We show that the localization locus of the partition function has instanton membrane solutions wrapping the six "fixed" three-spheres on the $\mathbb{S}^7$. The ADHM variables of these instantons are fields living on the membrane world volume. We compute their contribution by localizing the resulting three-dimensional supersymmetric field theory. In the round-sphere limit the individual instanton contributions are singular, but the singularities cancel when adding the contributions of all six three-spheres. The full partition function on the ${\mathbb S}^7$ is well-defined even when the square of the effective Yang-Mills coupling is negative. We show for an $SU(2)$ gauge theory in this regime that the bare negative tension of the instanton membranes is canceled off by contributions from the instanton partition function, indicating the existence of tensionless membranes. We provide evidence that this phase is distinct from the usual weakly coupled super Yang-Mills and, in fact, is gravitational.
description: 22 pages + 2 appendices, v3: minor revisions
Recent Developments in Bayesian Inference of Tokamak Plasma Equilibria and High-Dimensional Stochastic Quadratures
Creators: name: von Nessi, G. T.
name: Hole, M. J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences
subject: G.1.2; G.1.4
subject: 65Zxx,

description: We present recent results and technical breakthroughs for the Bayesian inference of tokamak equilibria using force-balance as a prior constraint. Issues surrounding model parameter representation and posterior analysis are discussed and addressed. These points motivate the recent advancements embodied in the Bayesian Equilibrium Analysis and Simulation Tool (BEAST) software being presently utilised to study equilibria on the Mega-Ampere Spherical Tokamak (MAST) experiment in the UK (von Nessi \emph{et. al.} 2012 \emph{J. Phys. A} \textbf{46} 185501). State-of-the-art results of using BEAST to study MAST equilbria are reviewed, with recent code advancements being systematically presented though out the manuscript.
description: 28 pages, 6 figures