cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Numerical Investigations on Hatching Process Strategies for Powder Bed Based Additive Manufacturing using an Electron Beam
Creators: name: Markl, Matthias
name: Ammer, Regina
name: Rüde, Ulrich
name: Körner, Carolin
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Computer and information sciences

description: This paper investigates in hatching process strategies for additive manufacturing using an electron beam by numerical simulations. The underlying physical model and the corresponding three dimensional thermal free surface lattice Boltzmann method of the simulation software are briefly presented. The simulation software has already been validated on the basis of experiments up to 1.2 kW beam power by hatching a cuboid with a basic process strategy, whereby the results are classified into `porous', `good' and `uneven', depending on their relative density and top surface smoothness. In this paper we study the limitations of this basic process strategy in terms of higher beam powers and scan velocities to exploit the future potential of high power electron beam guns up to 10 kW. Subsequently, we introduce modified process strategies, which circumvent these restrictions, to build the part as fast as possible under the restriction of a fully dense part with a smooth top surface. These process strategies are suitable to reduce the build time and costs, maximize the beam power usage and therefore use the potential of high power electron beam guns.
Ubique: A New Model for Untangling Inter-task Data Dependence in Complex HPC Workflows
Creators: name: Jae-Seung Yeom
name: Ahn, Dong H.
name: Lumsden, Ian
name: Luettgau, Jakob
name: Caino-Lores, Silvina
name: Taufer, Michela
Publisher: name: Zenodo
Year: 2022
Subjects: poster-presentation

description: Exploiting task parallelism is getting increasingly difficult for diverse and complex scientific workflows running on High Performance Computing (HPC) systems. We argue that the difficulty rises from a void in the spectrum of existing data-transfer models for resolving inter-task data dependence within a workflow and propose a novel model, Ubique, to fill that gap.
 The Ubique model combines the best from in-transit and in situ models in order for loosely coupled producer and consumer tasks to run concurrently and to resolve their data dependencies efficiently with little or no modifications to their codes, striking a balance between transparent optimization, productivity, and performance. Our preliminary evaluation suggests that Ubique can significantly outperform the parallel file system (PFS)-based model while offering transparent data transfer and synchronization which are the features lacking in many traditional models.
Deliverable: 2.3: I-NERGY Components, Services and Architecture (first version)
Creators: name: Fiorentino, Giampaolo
name: Lombardo, Leandro
name: Eze, Chijioke
name: Karakolis, Vangelis
name: Mouzakitis, Spiros
name: Pelekis, Sotiris
name: Korbakis, George
name: Lampropoulos, George
name: Fortuna, Carolina
name: Emehel, Charles
Publisher: name: Zenodo
Year: 2022

description: This document is organized as follows. Chapter 2 reports the approach for collecting, analysing and leveraging existing architecture efforts. Chapter 3 presents the needs and main requirement of I-NERGY platform. Chapter 4 describes the relevant architecture models and puts them into the context of I-NERGY and WP2 efforts, and Chapter 5 discusses established data space Architectures and their possible integration with I-NERGY. Subsequently, Chapter 6 builds upon these chapters to converge the discussed efforts into a first version of the I-NERGY Conceptual Architecture.
Conditional convex orders and measurable martingale couplings
Creators: name: Leskelä, Lasse
name: Vihola, Matti
Publisher: name: arXiv
Year: 2014
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60E15

description: Strassen's classical martingale coupling theorem states that two real-valued random variables are ordered in the convex (resp.\ increasing convex) stochastic order if and only if they admit a martingale (resp.\ submartingale) coupling. By analyzing topological properties of spaces of probability measures equipped with a Wasserstein metric and applying a measurable selection theorem, we prove a conditional version of this result for real-valued random variables conditioned on a random element taking values in a general measurable space. We also provide an analogue of the conditional martingale coupling theorem in the language of probability kernels and illustrate how this result can be applied in the analysis of pseudo-marginal Markov chain Monte Carlo algorithms. We also illustrate how our results imply the existence of a measurable minimiser in the context of martingale optimal transport.
description: 21 pages
Invariant Functionals on the Speh representation
Creators: name: Gourevitch, Dmitry
name: Sahi, Siddhartha
name: Sayag, Eitan
Publisher: name: arXiv
Year: 2014
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 20G05, 20G20, 22E45, 46T30

description: We study Sp(2n,R)-invariant functionals on the spaces of smooth vectors in Speh representations of GL(2n,R). For even n we give expressions for such invariant functionals using an explicit realization of the space of smooth vectors in the Speh representations. Furthermore, we show that the functional we construct is, up to a constant, the unique functional on the Speh representation which is invariant under the Siegel parabolic subgroup of Sp(2n,R). For odd n we show that the Speh representations do not admit an invariant functional with respect to the subgroup U(n) of Sp(2n,R) consisting of unitary matrices. Our construction, combined with the argument in [GOSS12], gives a purely local and explicit construction of Klyachko models for all unitary representations of GL(2n,R).
description: 14 pages. v4: minor corrections in Theorem 2.2, Lemma 2.9 and section 6
Strong variation of spin-orbit torques with relative spin relaxation rates in ferrimagnets
Creators: name: Zhu, Lijun
name: Ralph, Daniel C
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Spin-orbit torques (SOTs) have been widely understood as an interfacial transfer of spin that is independent of the bulk properties of the magnetic layer. Here, we report that SOTs acting on ferrimagnetic FexTb1-x layers decrease and vanish upon approaching the magnetic compensation point because the rate of spin transfer to the magnetization becomes slower than the rate of spin relaxation into the crystal lattice due to spin-orbit scattering. These results indicate that the relative rates of competing spin relaxation processes within magnetic layers play a critical role in determining the strength of SOTs, which provides a unified understanding for the diverse and even seemingly puzzling SOT phenomena in ferromagnetic and compensated systems. Our work indicates that spin-orbit scattering within the magnet should be minimized for efficient SOT devices. We also find that the interfacial spin-mixing conductance of interfaces of ferrimagnetic alloys (such as FexTb1-x) is as large as that of 3d ferromagnets and insensitive to the degree of magnetic compensation.
Detection of container zones by AI-based classification of image
Creators: name: Yang, Yuxin
name: LE, Vu Nam Anh
name: Ntshaykolo, Rémy
Publisher: name: figshare
Year: 2022
Subjects: Logistics
Transportation, logistics and supply chains not elsewhere classified

description: In the maritime industry, containers are crucial elements; therefore, management of containers is an important requirement in the world. A model to track movement of containers is a real demand which can examine positions of container zones and analyze situation of containers. In this research, based on some methods, satellite photos can be predicted if it is a zone of container and the target is to find the method with the highest accuracy and the shortest running time.
Massless scattering at special kinematics as Jacobi polynomials
Creators: name: Kalousios, Chrysostomos
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the scattering equations recently proposed by Cachazo, He and Yuan in the special kinematics where their solutions can be identified with the zeros of the Jacobi polynomials. This allows for a non-trivial two parameter family of kinematics. We present explicit and compact formulae for the n-gluon and n-graviton partial scattering amplitudes for our special kinematics in terms of Jacobi polynomials. We also provide alternative expressions in terms of gamma functions. We give an interpretation of the common reduced determinant appearing in the amplitudes as the product of the squares of the eigenfrequencies of small oscillations of a system whose equilibrium is the solutions of the scattering equations.
description: 9 pages; v2: clarifications and references added, published version; v3: a factor of (n-3)! in equation 11 and in the final expression of the gluon amplitude was corrected
Estimates of Population Highly Annoyed from Transportation Noise in the United States: An Unfair Share of the Burden by Race and Ethnicity
Creators: name: Huang, Ching-Hsuan
name: Seto, Edmund
Publisher: name: arXiv
Year: 2023
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Transportation is one of the most pervasive sources of community noise. In this study, we used a spatially-resolved model of transportation-related noise with established transportation noise exposure-response functions to estimate the population highly annoyed (HA) due to aviation, road, and railway traffic sources in the United States. Additionally, we employed the use of the Fair Share Ratio to assess race/ethnicity disparities in traffic noise exposures. Our results estimate that in 2020, 7.8 million (2.4%) individuals were highly annoyed by aviation noise, while 5.2 million (1.6%) and 7.9 million (2.4%) people were highly annoyed by rail and roadway noise, respectively, across the US. The Fair Share Ratio revealed that Non-Hispanic Asian, Black, NHPI, and Other, and Hispanic populations were disproportionally highly annoyed by transportation noise nationwide. Notably, Hispanic populations experienced the greatest share of high annoyance from aviation noise (1.69 times their population share). Non-Hispanic Black populations experienced the greatest share of high annoyance from railway noise (1.48 times their population share). Non-Hispanic Asian populations experienced the greatest share of high annoyance from roadway noise (1.51 times their population share). Analyses at the state and Urban Area levels further highlighted varying disparities in transportation noise exposure and annoyance across different race ethnicity groups, but still suggested that Non-Hispanic White populations were less annoyed by all sources of transportation noise compared to non-White populations. Our findings indicate widespread presence of transportation noise annoyance across the US and emphasize the need for targeted source-specific noise mitigation strategies and policies to minimize the disproportionate impact of transportation noise in the US.
description: Added references. Revised the Introduction and Discussion sections. A detailed description of methodology was added to the supplementary materials
Pinharanda Gomes, História da Filosofia Portuguesa. 3. A Filosofia Arabigo-Portuguesa, ≪Filosofia & Ensaios≫, Guimarães Editores, Lisboa 1991, 496 pp., 185X120.
Creators: name: Coutinho, Jorge
Publisher: name: Theologica
Year: 1994

description: Theologica, v. 29 n. 2 (1994): Santuários marianos | Braga e Viana do Castelo
On Bailey pairs for $\mathcal N=2$ supersymmetric gauge theories on $S_b^3/\mathbb{Z}_r$
Creators: name: Gahramanov, Ilmar
name: Keskin, Batuhan
name: Kosva, Dilara
name: Mullahasanoglu, Mustafa
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We study Bailey pairs construction for hyperbolic hypergeometric integral identities acquired via the duality of lens partitions functions for the three-dimensional $\mathcal N=2$ supersymmetric gauge theories on $S_b^3/\mathbb{Z}_r$. The novel Bailey pairs are constructed for the star-triangle relation, the star-star relation and the pentagon identity. The first two of them are integrability conditions for the Ising-type integrable lattice models. The last one corresponds to the representation of the basic $2-3$ Pachner move for triangulated 3-manifolds.
description: 26 pages, v2: minor corrections, v3: minor corrections and comments added
Additional file 7 of Lactobacillus reuteri tryptophan metabolism promotes host susceptibility to CNS autoimmunity
Creators: name: Montgomery, Theresa L.
name: Eckstrom, Korin
name: Lile, Katarina H.
name: Caldwell, Sydney
name: Heney, Eamonn R.
name: Lahue, Karolyn G.
name: D’Alessandro, Angelo
name: Wargo, Matthew J.
name: Krementsov, Dimitry N.
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Physiology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer

description: Additional file 7: Figure S7. The abundance of p-cresol sulfate and p-cresol glucuronide correlate with disease severity. Serum was collected from mice fed a low or high tryptophan diet colonized with either the B6 or B6+L. reuteri microbiome following a 30-day EAE course and analyzed via UPLC-MS/MS as outlined in (Fig. 4A and B). Data were analyzed for all four experimental groups: B6 or B6+L. reuteri colonized mice randomized to a low 0.02% or 0.8% high tryptophan diet. (A) Top 25 metabolites correlating with disease severity as measured by cumulative disease score (CDS), the sum of all daily scores over a 30-day disease course. (B) X-Y scatter plot of p-cresol sulfate and p-cresol glucuronide abundance and CDS using linear regression, with the P value indicating significant deviation from a non-zero slope (i.e. significant correlation). A zero value was entered for p-cresol glucuronide abundance in low-tryptophan-fed mice when below the limit of detection. Statistical analysis is provided in Table S31.
title: Urbane Datenplattformen und Resilienz der Städte: Status quo in Deutschland und Empfehlungen für kommunale Akteure
Creators: name: Leštáková, Michaela
name: Wright-Contreras, Lucía
name: Schiermeyer, Leonie
name: Haselhorst Associates GmbH
name: LOEWE-Zentrum EmergenCITY
Publisher: name: UNSPECIFIED
Year: 2023

description: Digitalisierung in Städten ist ein globaler Trend. Auch in der Bundesrepublik Deutschland streben viele Städte an, sogenannte Smart Cities zu werden. Um dieses Ziel zu erreichen, werden in Städten zunehmend Daten zu verschiedenen Themenbereichen gesammelt – mit der Absicht, den Informationsaustausch zwischen Behörden, Bürgerinnen und Bürgern und anderen städtischen Akteuren einfacher, effizienter und transparenter zu gestalten. Zu diesem Zweck werden häufig sogenannte urbane Datenplattformen eingesetzt. In diesem Praxisdossier wird die Rolle von urbanen Datenplattformen im Kontext von Resilienz und Smart Cities untersucht. In Kooperation zwischen dem LOEWE-Zentrum emergenCITY und Haselhorst Associates wurden zu diesem Zweck zwei Forschungsfragen definiert: 1) Können urbane Datenplattformen dazu beitragen, die Resilienz der Stadt zu erhöhen? (Resilienz durch IKT) und 2) Sind die existierenden urbanen Datenplattformen in sich resilient? (Resilienz für IKT). Zur Beantwortung dieser Fragen wurden über 400 deutsche Städte hinsichtlich des Vorhandenseins oder der geplanten Einführung einer städtischen Datenplattform untersucht. Ergänzt wurden die Ergebnisse durch eine Analyse der Smart-Cities-Modellprojekte. Basierend auf der Analyse werden 6 Empfehlungen für kommunale Akteure formuliert.
Signatures of a spinning supermassive black hole binary on the mas-scale jet of the quasar S5 1928+738 based on 25 years of VLBI data
Creators: name: Kun, E.
name: Britzen, S.
name: Frey, S.
name: Gabányi, K. É.
name: Gergely, L. Á.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In a previous work, we have identified the spin of the dominant black hole of a binary from its jet properties. Analysing Very Long Baseline Array (VLBA) observations of the quasar S5~1928+738, taken at $15$-GHz during $43$ epochs between $1995.96$ and $2013.06$, we showed that the inclination angle variation of the inner ($<2$~mas) jet symmetry axis naturally decomposes into a periodic and a monotonic contribution. The former emerges due to the Keplerian orbital evolution, while the latter is interpreted as the signature of the spin-orbit precession of the jet emitting black hole. In this paper, we revisit the analysis of the quasar S5~1928+738 by including new $15$-GHz VLBA observations extending over $29$ additional epochs, between $2013.34$ and $2020.89$. The extended data set confirms our previous findings which are further supported by the flux density variation of the jet. By applying an enhanced jet precession model that can handle arbitrary spin orientations $κ$ with respect to the orbital angular momentum of a binary supermassive black hole system, we estimate the binary mass ratio as $ν=0.21\pm0.04$ for $κ=0$ (i.e. when the spin direction is perpendicular to the orbital plane) and as $ν=0.32\pm0.07$ for $κ=π/2$ (i.e. when the spin lies in the orbital plane). We estimate more precisely the spin precession velocity, halving its uncertainty from $(-0.05\pm0.02)^\circ\,\mathrm{yr}^{-1}$ to $(-0.04\pm0.01)^\circ\,\mathrm{yr}^{-1}$.
description: 13 pages, 5 figures, 7 tables. Accepted to appear in MNRAS
Escape from a black hole with spherical warp drive
Creators: name: Eroshenko, Yury N.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, a class of the warp drive (WD) type metrics is proposed in the form of spherical and plane waves or shells. In particular, these metrics can describe the passage of spherical WD through the horizon of a black hole from the inside out. In this metrics, non-singular evolution of physical fields is possible, which is demonstrated by examples of scalar, vector and fermion fields. The passage of a warp-wave through the fields is accompanied by soliton-like configurations (kinks). The limiting case of Planck-scale WD can lead to the evaporation of singularities inside black holes with the escape of particles and information into outer space, and the EPR=WD conjecture can also be proposed.
description: 7 pages, 2 figures, misprints corrected
Additional file 1 of Anticipatory postural adjustments in older versus young adults: a systematic review and meta-analysis
Creators: name: Duarte, Manuela Brito
name: da Silva Almeida, Gizele Cristina
name: Costa, Kelly Helorany Alves
name: Garcez, Daniela Rosa
name: de Athayde Costa e Silva, Anselmo
name: da Silva Souza, Givago
name: de Melo-Neto, João Simão
name: Callegari, Bianca
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: Additional file 1: Supplementary Table S1. Prism Checklist.
Challenges and Solution for Artificial Intelligence in Cybersecurity of the USA
Creators: name: Soni, Vishal Dineshkumar
Publisher: name: figshare
Year: 2020
Subjects: Computer Engineering

description: The development of Information Technology can make a computer to act and think like humans. AI is an exceptional aspect of information technology that requires the event of a machine that reacts and works as a mind of the human. The artificial intelligence' key features include the human senses' analogy. The system is capable of recognizing touch and speeches as features that are placed within the system for running the normal life situation's potential activities without the assistance of humans. Artificial intelligence, however, is the intelligence' agents' study that takes the environment's condition and achieves its goal successfully. The majority of the systems in the computing World are built for serving the purposes as per the situation's nature with the unique features' application from the human's aspects' natural existing. Artificial intelligence is generally an associate of the humans that apply problem-solving techniques and learning for understanding activities' high levels in operation of the human-inspired elements, decision-making, and emotional cycle. As opposed to human intelligence, artificial intelligence is machine-based intelligence. This research paper is aimed at evaluating the current challenges related to artificial intelligence for cybersecurity in the United States. The research paper will propose the innovative solution for Artificial Intelligence in cybersecurity of the USA.
Additional file 6 of Lactobacillus reuteri tryptophan metabolism promotes host susceptibility to CNS autoimmunity
Creators: name: Montgomery, Theresa L.
name: Eckstrom, Korin
name: Lile, Katarina H.
name: Caldwell, Sydney
name: Heney, Eamonn R.
name: Lahue, Karolyn G.
name: D’Alessandro, Angelo
name: Wargo, Matthew J.
name: Krementsov, Dimitry N.
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Physiology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer

description: Additional file 6: Figure S6. Microbiome and dietary signatures in pooled analysis of serum metabolomic data. Serum was collected from mice fed a low or high tryptophan diet colonized with either the B6 or B6+L. reuteri microbiome following a 30-day EAE course and analyzed via UPLC-MS/MS as outlined in (Fig. 4A and B). Data were analyzed for all four experimental groups: B6 or B6+L. reuteri colonized mice randomized to a low 0.02% or 0.8% high tryptophan diet. (A) Partial least squares-discriminant analysis (PLS-DA) of total metabolites. (B) Top 10 metabolites as variables of importance in the PLS-DA projection (VIP) along component 1 responsible for segregating samples by diet. (C) Top 10 metabolites as variables of importance in the PLS-DA projection (VIP) along component 2 responsible for segregating samples by microbiome. Statistical analysis is provided in Table S24.
Optimal Downlink Power Allocation in Cellular Networks
Creators: name: Abdelhadi, Ahmed
name: Khawar, Awais
name: Clancy, T. Charles
Publisher: name: arXiv
Year: 2014
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: In this paper, we introduce a novel approach for power allocation in cellular networks. In our model, we use sigmoidal-like utility functions to represent different users' modulation schemes. Each utility function is a representation of the probability of successfully transmitted packets per unit of power consumed by a user, when using a certain modulation scheme. We consider power allocation with utility proportional fairness policy, where the fairness among users is in utility percentage i.e. percentage of successfully transmitted packets of the corresponding modulation scheme. We formulate our network utility maximization problem as a product of utilities of all users and prove that our power allocation optimization problem is convex and therefore the optimal solution is tractable. We present a distributed algorithm to allocate base station (BS) powers optimally with priority given to users running lower modulation schemes while ensuring non-zero power allocation to users running higher modulation schemes. Our algorithm prevents fluctuation in the power allocation process and is capable of traffic and modulation dependent pricing i.e. charges different price per unit power from different users depending in part on their modulation scheme and total power available at the BS. This is used to flatten traffic and decrease the service price for users.
description: ELSEVIER Physical Communication July 2015
Additional file 1 of An examination of health care utilization during the COVID-19 pandemic among women with early-stage hormone receptor-positive breast cancer
Creators: name: Paladino, Andrew J.
name: Pebley, Kinsey
name: Kocak, Mehmet
name: Krukowski, Rebecca A.
name: Waters, Teresa M.
name: Vidal, Gregory
name: Schwartzberg, Lee S.
name: Curry, Andrea N.
name: Graetz, Ilana
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Cancer

description: Supplementary Material 1
Additional file 4 of Lactobacillus reuteri tryptophan metabolism promotes host susceptibility to CNS autoimmunity
Creators: name: Montgomery, Theresa L.
name: Eckstrom, Korin
name: Lile, Katarina H.
name: Caldwell, Sydney
name: Heney, Eamonn R.
name: Lahue, Karolyn G.
name: D’Alessandro, Angelo
name: Wargo, Matthew J.
name: Krementsov, Dimitry N.
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Physiology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer

description: Additional file 4: Figure S4. Tryptophan availability rewires L. reuteri metabolic output in monoculture. (A) Partial least-squares discriminate analysis (PLS-DA) and (B) hierarchical clustering by Euclidean distance using Ward’s linkage represented as a heatmap of total metabolites from basal BHI medium and L. reuteri monocultures with or without 1mM tryptophan supplementation. Heatmap reflects top 25 differentially abundant metabolites between L. reuteri monocultures with or without 1mM tryptophan and analyzed by t-test at a threshold of p≤0.05 to generate a subset of metabolites most influenced by L. reuteri tryptophan metabolism. The resulting list was analyzed in all four experimental groups (including media alone controls) by one-way ANOVA at p≤0.05 and represented as a heatmap.
Time-resolved transmission spectroscopy of the ultra-hot Jupiter WASP-189 b
Creators: name: Prinoth, Bibiana
name: Hoeijmakers, H. Jens
name: Pelletier, Stefan
name: Kitzmann, Daniel
name: Morris, Brett M.
name: Seifahrt, Andreas
name: Kasper, David
name: Korhonen, Heidi H.
name: Burheim, Madeleine
name: Bean, Jacob L.
name: Benneke, Björn
name: Borsato, Nicholas W.
name: Brady, Madison
name: Grimm, Simon L.
name: Luque, Rafael
name: Stürmer, Julian
name: Thorsbro, Brian
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Ultra-hot Jupiters are tidally locked with their host stars dividing their atmospheres into a hot dayside and a colder nightside. As the planet moves through transit, different regions of the atmosphere rotate into view revealing different chemical regimes. High-resolution spectrographs can observe asymmetries and velocity shifts, and offer the possibility for time-resolved spectroscopy. In this study, we search for other atoms and molecules in the planet`s transmission spectrum and investigate asymmetric signals. We analyse and combine eight transits of the ultra-hot Jupiter WASP-189 b taken with the HARPS, HARPS-N, ESPRESSO and MAROON-X high-resolution spectrographs. Using the cross-correlation technique, we search for neutral and ionised atoms, and oxides and compare the obtained signals to model predictions. We report significant detections for H, Na, Mg, Ca, Ca+, Ti, Ti+, TiO, V, Cr, Mn, Fe, Fe+, Ni, Sr, Sr+, and Ba+. Of these, Sr, Sr+, and Ba+ are detected for the first time in the transmission spectrum of WASP-189 b. In addition, we robustly confirm the detection of titanium oxide based on observations with HARPS and HARPS-N using the follow-up observations performed with MAROON-X and ESPRESSO. By fitting the orbital traces of the detected species by means of time-resolved spectroscopy using a Bayesian framework, we infer posterior distributions for orbital parameters as well as lineshapes. Our results indicate that different species must originate from different regions of the atmosphere to be able to explain the observed time dependence of the signals. Throughout the course of the transit, most signal strengths are expected to increase due to the larger atmospheric scale height at the hotter trailing terminator. For some species, however, the signals are instead observed to weaken due to ionisation for atoms and their ions, or the dissociation of molecules on the dayside.
description: 38 pages, 34 figures, published in A&A on October 24, 2023
Impurity and vortex States in the bilayer high-temperature superconductor $\mathrm{La}_3\mathrm{Ni}_2\mathrm{O}_7$
Creators: name: Huang, Junkang
name: Wang, Z. D.
name: Zhou, Tao
Publisher: name: arXiv
Year: 2023
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We perform a theoretical examination of the local electronic structure in the recently discovered bilayer high-temperature superconductor ${\mathrm{La}_3\mathrm{Ni}_2\mathrm{O}_7}$. Our method begins with a bilayer two-orbital tight-binding model, incorporating various pairing interaction channels. We determine superconducting order parameters by self-consistently solving the real-space Bogoliubov-de Gennes (BdG) equations, revealing a robust and stable extended s-wave pairing symmetry. We investigate the single impurity effect using both self-consistent BdG equations and non-self-consistent T-matrix methods, uncovering low-energy in-gap states that can be explained with the T-matrix approach. Additionally, we analyze magnetic vortex states using a self-consistent BdG technique, which shows a peak-hump structure in the local density of states at the vortex center. Our results provide identifiable features that can be used to determine the pairing symmetry of the superconducting ${\mathrm{La}_3\mathrm{Ni}_2\mathrm{O}_7}$ material.
description: 8 pages. 8 figures. including the Supplemental material
3D particle-in-cell simulations of negative and positive streamers in C4F7N-CO2 mixtures
Creators: name: Guo, Baohong
name: Ebert, Ute
name: Teunissen, Jannis
Publisher: name: arXiv
Year: 2023
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We investigate negative and positive streamers in C4F7N-CO2 mixtures through simulations. These mixtures are considered to be more environmentally friendly than the insulating gas SF6 that is widely used in high voltage technology. Simulations are performed using a 3D particle-in-cell model. Negative streamers can propagate when the background field is close to the critical field. We relate this to their short conductive channels, due to rapid electron attachment, which limits their field enhancement. Positive streamers also require a background field close to the critical field, and in addition a source of free electrons ahead of them. In our simulations these electrons are provided through an artificial stochastic background ionization process as no efficient photoionization process is known for these gases. In 3D, we can only simulate the early inception stage of positive discharges, due to the extremely high electric fields and electron densities that occur. Qualitative 2D Cartesian simulations show that the growth of these discharges is highly irregular, resulting from incoming negative streamers that connect to existing channels. The inclusion of a stochastic background ionization process also has an interesting effect on negative discharges: new streamers can be generated behind previous ones, thereby forming a chain of negative streamers.
Additional file 3 of Lactobacillus reuteri tryptophan metabolism promotes host susceptibility to CNS autoimmunity
Creators: name: Montgomery, Theresa L.
name: Eckstrom, Korin
name: Lile, Katarina H.
name: Caldwell, Sydney
name: Heney, Eamonn R.
name: Lahue, Karolyn G.
name: D’Alessandro, Angelo
name: Wargo, Matthew J.
name: Krementsov, Dimitry N.
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Physiology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer

description: Additional file 3: Figure S3. Representative locus housing D-lactate dehydrogenase (fldH) and the adjacent aromatic amino acid aminotransferase (araT) in L. reuteri isolates and reference taxa. Each araT (red) and fldH (green) locus in all Lactobacillus isolates were compared to representative references genomes using the compare region viewer in PATRIC. The L. reuteri locus wherein araT and fldH are structured as a pseudo-operon that is conserved in closely related reference taxa is depicted as a schematic.
Soren Kierkegaard, Temor e Tremor, ≪Filosofia & Ensaios≫, Guimarães Editores, Lisboa 1990, 168 pp., 185X120.
Creators: name: Coutinho, Jorge
Publisher: name: Theologica
Year: 1994

description: Theologica, v. 29 n. 2 (1994): Santuários marianos | Braga e Viana do Castelo
Additional file 1 of Patient perceptions and experiences of medication review: qualitative study in general practice
Creators: name: McCahon, Deborah
name: Duncan, Polly
name: Payne, Rupert
name: Horwood, Jeremy
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1.
Towards an astronomical foundation model for stars with a Transformer-based model
Creators: name: Leung, Henry W.
name: Bovy, Jo
Publisher: name: arXiv
Year: 2023
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Rapid strides are currently being made in the field of artificial intelligence using Transformer-based models like Large Language Models (LLMs). The potential of these methods for creating a single, large, versatile model in astronomy has not yet been explored. In this work, we propose a framework for data-driven astronomy that uses the same core techniques and architecture as used by LLMs. Using a variety of observations and labels of stars as an example, we build a Transformer-based model and train it in a self-supervised manner with cross-survey data sets to perform a variety of inference tasks. In particular, we demonstrate that a $\textit{single}$ model can perform both discriminative and generative tasks even if the model was not trained or fine-tuned to do any specific task. For example, on the discriminative task of deriving stellar parameters from Gaia XP spectra, we achieve an accuracy of 47 K in $T_\mathrm{eff}$, 0.11 dex in $\log{g}$, and 0.07 dex in $[\mathrm{M/H}]$, outperforming an expert $\texttt{XGBoost}$ model in the same setting. But the same model can also generate XP spectra from stellar parameters, inpaint unobserved spectral regions, extract empirical stellar loci, and even determine the interstellar extinction curve. Our framework demonstrates that building and training a $\textit{single}$ foundation model without fine-tuning using data and parameters from multiple surveys to predict unmeasured observations and parameters is well within reach. Such "Large Astronomy Models" trained on large quantities of observational data will play a large role in the analysis of current and future large surveys.
Rest-Frame Near-Infrared Radial Light Profiles up to z=3 from JWST/NIRCam: Wavelength Dependence of the Sérsic Index
Creators: name: Martorano, Marco
name: van der Wel, Arjen
name: Bell, Eric F.
name: Franx, Marijn
name: Whitaker, Katherine E.
name: Nersesian, Angelos
name: Price, Sedona H.
name: Baes, Maarten
name: Suess, Katherine A.
name: Nelson, Erica J.
name: Miller, Tim B.
name: Bezanson, Rachel
name: Brammer, Gabriel
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We examine the wavelength dependence of radial light profiles based on Sérsic index $n$ measurements of 1067 galaxies with M$_*\geq$ 10$^{9.5}$M$_\odot$ and in the redshift range $0.5 < z < 3$. The sample and rest-frame optical light profiles are drawn from CANDELS$+$3D-HST; rest-frame near-infrared light profiles are inferred from CEERS JWST/NIRCam imaging. $n$ shows only weak dependence on wavelength, regardless of redshift, galaxy mass and type: on average, star-forming galaxies have $n = 1-1.5$ and quiescent galaxies have $n = 3-4$ in the rest-frame optical and near-infrared. The strong correlation at all wavelengths between $n$ and star-formation activity implies a physical connection between the radial stellar mass profile and star-formation activity. The main caveat is that the current sample is too small to discern trends for the most massive galaxies (M$_* > 10^{11}M_\odot$).
description: 15 pages, 7 figures, Submitted to ApJ. Comments welcome
First simultaneous measurement of sextupolar and octupolar resonance driving terms in a circular accelerator from turn-by-turn beam position monitors data
Creators: name: Franchi, A.
name: Farvacque, L.
name: Ewald, F.
name: Bec, G. Le
name: Scheidt, K. B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: Beam lifetime in storage rings and colliders is affected by, among other effects, lattice nonlinearities. Their control are of great benefit to the dynamic aperture of an accelerator, whose enlargement leads in general to more efficient injection and longer lifetime. This article describes a procedure to evaluate and correct unwanted nonlinearities by using turn-by-turn beam position monitor data, which is an evolution of previous works on the resonance driving terms (RDTs). Effective sextupole magnetic errors and tilts at the ESRF electron storage ring are evaluated and corrected (when possible) by using this technique. For the first time, also octupolar RDTs could be measured and used to define an octupolar model for the main quadrupoles. Most of the deviations from the model observed in the sextupolar RDTs of the ESRF storage ring turned out to be generated by focusing errors rather than by sextupole errors. These results could be achieved thanks to new analytical formulas describing the harmonic content of the nonlinear betatron motion to the second order. For the first time, RDTs have been also used for beam-based calibration of individual sextupole magnets. They also proved to be a powerful tool in predicting faulty magnets and in validating magnetic models. This technique provides also a figure of merit for a self-assessment of the reliability of the data analysis.
The gamma-ray burst arising from neutrino pair annihilation in the static and spherically symmetric black-hole-like wormholes
Creators: name: Shi, Yuxuan
name: Cheng, Hongbo
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We look into the neutrino-antineutrino pair ($ν+\barν\longrightarrow e^{-}+e^{+}$) annihilation in the Damour-Solodukhin wormhole spacetime whose metric component involves a shift in contrast to the similar black hole. The deep analysis of the surface temperature of the accretion disk of static, spherically symmetric black-hole-like wormholes from R. Kh. Karimov et.al. reveals that the accretion disks of the wormholes are hotter than that of comparable black holes, indicating that the wormholes accretion disk can release neutrinos. Further we investigate the energy deposition rate from the neutrino pair annihilation around the Damour-Solodukhin wormhole thought as a mimicker of Schwarzschild black hole. By comparison made between the black-hole-like wormhole and the similar black hole, we demonstrate that the wormhole's accretion disk drawing the annihilation can become a source of gamma-ray burst although the more significant deviation from the similar black hole reduces the emitted power slightly. The ratio of energy deposition per unit time from the annihilation surrounding the accretion disk of the Damour-Solodukhin wormhole over the emitting power of black hole might alter noticeably depending on how slightly the metrics of the wormhole differ from the black hole spacetime.
description: 12 pages, 8 figures
Additional file 2 of Lactobacillus reuteri tryptophan metabolism promotes host susceptibility to CNS autoimmunity
Creators: name: Montgomery, Theresa L.
name: Eckstrom, Korin
name: Lile, Katarina H.
name: Caldwell, Sydney
name: Heney, Eamonn R.
name: Lahue, Karolyn G.
name: D’Alessandro, Angelo
name: Wargo, Matthew J.
name: Krementsov, Dimitry N.
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Physiology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer

description: Additional file 2: Figure S2. Expression levels of putative aromatic amino acid aminotransferase (ArAT) loci identified in the L. reuteri genome. (A) Pathway schematic of bacterial and abbreviated mammalian tryptophan metabolism from Fig. 2A. Enzymes with genomic evidence in Lactobacillus isolates are boxed in orange (ArAT), blue (FldH) and yellow (AmiE). (B) Heatmap of bacterial tryptophan specific enzymes with genomic evidence in Lactobacillus isolates. Enzymes are listed along the left in corresponding colors to the pathway in (A) with isolates and representative strains of the same species along the top and warmer colors indicating increasing copy number. (C) Expression level of araT loci in L. reuteri following 4 or 24hrs (D) of monoculture with 0 or 1mM tryptophan supplementation in brain heart infusion (BHI) medium as measured by qRT-PCR. Data is organized top to bottom corresponding to the heatmap in (B). Cultures were performed in triplicate and expression levels are normalized to a pan-Eubacterial primer set against the 16S rRNA gene. Primer sets are available in Table S35.
An Optimal Resource Allocation with Joint Carrier Aggregation in 4G-LTE
Creators: name: Abdelhadi, Ahmed
name: Clancy, T. Charles
Publisher: name: arXiv
Year: 2014
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: In this paper, we introduce a novel approach for optimal resource allocation from multiple carriers for users with elastic and inelastic traffic in fourth generation long term evolution (4G-LTE) system. In our model, we use logarithmic and sigmoidal-like utility functions to represent the user applications running on different user equipments (UE)s. We use utility proportional fairness policy, where the fairness among users is in utility percentage of the application running on the mobile station. Our objective is to allocate the resources to the users optimally from multiple carriers. In addition, every user subscribing for the mobile service is guaranteed to have a minimum quality-of-service (QoS) with a priority criterion. Our rate allocation algorithm selects the carrier or multiple carriers that provide the minimum price for the needed resources. We prove that the novel resource allocation optimization problem with joint carrier aggregation is convex and therefore the optimal solution is tractable. We present a distributed algorithm to allocate the resources optimally from multiple evolved NodeBs (eNodeB)s. Finally, we present simulation results for the performance of our rate allocation algorithm.
description: Computing, Networking and Communications (ICNC), 2015 International Conference on
Additional file 1 of Lactobacillus reuteri tryptophan metabolism promotes host susceptibility to CNS autoimmunity
Creators: name: Montgomery, Theresa L.
name: Eckstrom, Korin
name: Lile, Katarina H.
name: Caldwell, Sydney
name: Heney, Eamonn R.
name: Lahue, Karolyn G.
name: D’Alessandro, Angelo
name: Wargo, Matthew J.
name: Krementsov, Dimitry N.
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Physiology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer

description: Additional file 1: Figure S1. Full radial phylogenetic trees of Lactobacillus isolates and nearest subspecies neighbors. Extended taxonomic data comparing duplicate isolate draft genomes for L. reuteri (A-B), L. murinus (C-D) and L. johnsonii (E-F). Nearest phylogenetic neighbors, including subspecies neighbors, of each Lactobacillus draft genome determined by average amino acid identify (AAI) percent shared genomic content are represented as phylogenetic trees. Color gradients denote percent conserved average nucleotide identity (ANI) between each isolate and respective nearest subspecies phylogenetic neighbors.
Groupoid algebras as Cuntz-Pimsner algebras
Creators: name: Rennie, Adam
name: Robertson, David
name: Sims, Aidan
Publisher: name: arXiv
Year: 2014
Subjects: subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 46L05

description: We show that if $G$ is a second countable locally compact Hausdorff étale groupoid carrying a suitable cocycle $c:G\to\mathbb{Z}$, then the reduced $C^*$-algebra of $G$ can be realised naturally as the Cuntz-Pimsner algebra of a correspondence over the reduced $C^*$-algebra of the kernel $G_0$ of $c$. If the full and reduced $C^*$-algebras of $G_0$ coincide, we deduce that the full and reduced $C^*$-algebras of $G$ coincide. We obtain a six-term exact sequence describing the $K$-theory of $C^*_r(G)$ in terms of that of $C^*_r(G_0)$.
description: 5 pages. V2: James Fletcher discovered an error Lemma 9. No other results are affected. In this version, statements (2) and (3), and the proof, of Lemma 9 have been corrected. Remark 10 has been added to give details of the error. An erratum will appear in Math Scand, referring to this version of the arXiv posting for details