cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Integrability of the superstring in AdS(3) x S(2) x S(2) x T(3)
Creators: name: Wulff, Linus
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Type II supergravity admits an AdS(3) x S(2) x S(2) x T(3) solution with fluxes depending on several free parameters. We determine the constraints on these parameters imposed by the requirement of (classical) integrability of the superstring sigma model. To do this we analyze the low-energy effective action for the spinning GKP string. The absence of particle production in the tree-level S-matrix of bosonic excitations is shown to imply the vanishing of two of the four parameters in the NSNS three-form flux. This reduces the supergravity background to either the one-parameter AdS(3) x S(2) x S(2) x T(3) background preserving eight supersymmetries, or a non-supersymmetric branch, which differs only by flipping a sign in the RR flux. We show that both these branches can be obtained from AdS(3) x S(3) x S(3) x S(1) by T-dualities on the (Hopf) circle fibers of the three-spheres and therefore the integrability of the string in these backgrounds follows.
description: 11 pages, 1 figure; v3: Minor clarifications, matches published version
DÜŞÜK HAPI 0552 733 14 31 DÜŞÜK HAPI CANLI SİPARİŞ HATTICytotec dusuk ilaci kadinlarda rahim kaslarinin acilmasini saglayan bir ilactir rahimkaslari acildiginda rahimde bulunan gebelik ilerleyerek dusuk islemigerceklesmektedir. Tüm Türkiye’ye kargo vardır
Creators: name: sipariş 0552 733 14 31, düşük hapı
name: sipariş 0543 529 72 06, düşük hapı
name: 0543 529 72 06 siparişi, düşük ilacı
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 320704
subject: Medical parasitology
classificationCode: 320207
subject: Emergency medicine
classificationCode: 320507
subject: Metabolic medicine

description: DÜŞÜK HAPI 0552 733 14 31 DÜŞÜK HAPI CANLI SİPARİŞ HATTI
Cytotec dusuk ilaci kadinlarda rahim kaslarinin acilmasini saglayan bir ilactir rahim
kaslari acildiginda rahimde bulunan gebelik ilerleyerek dusuk islemi
gerceklesmektedir. Tüm Türkiye’ye kargo vardır
Kinetic approach to relativistic dissipation
Creators: name: Gabbana, A.
name: Mendoza, M.
name: Succi, S.
name: Tripiccione, R.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Despite a long record of intense efforts, the basic mechanisms by which dissipation emerges from the microscopic dynamics of a relativistic fluid still elude a complete understanding. In particular, no unique pathway from kinetic theory to hydrodynamics has been identified as yet, with different approaches leading to different values of the transport coefficients. In this Letter, we approach the problem by matching data from lattice kinetic simulations with analytical predictions. Our numerical results provide neat evidence in favour of the Chapman-Enskog procedure, as suggested by recently theoretical analyses, along with qualitative hints at the basic reasons why the Chapman-Enskog expansion might be better suited than Grad's method to capture the emergence of dissipative effects in relativistic fluids.
DÜŞÜK HAPI 0552 733 14 31 DÜŞÜK HAPI CANLI SİPARİŞ HATTICytotec dusuk ilaci kadinlarda rahim kaslarinin acilmasini saglayan bir ilactir rahimkaslari acildiginda rahimde bulunan gebelik ilerleyerek dusuk islemigerceklesmektedir. Tüm Türkiye’ye kargo vardır
Creators: name: sipariş 0552 733 14 31, düşük hapı
name: 0543 529 72 06, düşük hapı
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 320704
subject: Medical parasitology
classificationCode: 320207
subject: Emergency medicine
classificationCode: 320507
subject: Metabolic medicine

description: DÜŞÜK HAPI 0552 733 14 31 DÜŞÜK HAPI CANLI SİPARİŞ HATTI
Cytotec dusuk ilaci kadinlarda rahim kaslarinin acilmasini saglayan bir ilactir rahim
kaslari acildiginda rahimde bulunan gebelik ilerleyerek dusuk islemi
gerceklesmektedir. Tüm Türkiye’ye kargo vardır
A Novel/Old Modification of the First Zagreb Index
Creators: name: Ali, Akbar
name: Trinajstić, Nenad
Publisher: name: arXiv
Year: 2017
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: In the paper [I. Gutman, N. Trinajstić, Chem. Phys. Lett. 17 (1972), 535], it was shown that total $π$-electron energy ($E$) of a molecule $M$ depends on the quantity $\sum_{v\in V(G)}d_{v}^{2}$ (nowadays known as the "first Zagreb index"), where $G$ is the graph corresponding to $M$, $V(G)$ is the vertex set of $G$ and $d_{v}$ is degree of the vertex $v$. In the same paper, the graph invariant $\sum_{v\in V(G)}d_{v}τ_{v}$ (where $τ_{v}$ is the connection number of $v$, that is the number of vertices at distance 2 from $v$) was also proved to influence $E$, but this invariant was never restudied explicitly. We call it "modified first Zagreb connection index" and denote it by $ZC_{1}^{*}$. In this paper, we characterize the extremal elements with respect to the graph invariant $ZC_{1}^{*}$ among the collection of all $n$-vertex chemical trees.
description: 12 Pages
A note on deformations of regular embeddings
Creators: name: Ciliberto, C.
name: Flamini, F.
name: Galati, C.
name: Knutsen, A. L.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: In this paper we give a description of the first order deformation space of a regular embedding of reduced algebraic schemes. We compare our result with results of Ran (in particular [Ran, Prop. 1.3]).
description: Added errata corrige. To appear in Rend. Circ. Mat. Palermo, II. Ser
Collapsing scenario for the k-essence emergent generalised Vaidya spacetime in the context of massive gravity's rainbow
Creators: name: Ray, Saibal
name: Panda, Arijit
name: Majumder, Bivash
name: Islam, Md. Rabiul
name: Manna, Goutam
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: In this paper, we study the collapsing scenario for the k-essence emergent Vaidya spacetime in the context of massive gravity's rainbow. For this study, we consider that the background metric is Vaidya spacetime in massive gravity's rainbow. We show that the k-essence emergent gravity metric resembles closely to the new type of generalized Vaidya massive gravity metric with the rainbow deformations for null fluid collapse where we consider the k-essence scalar field as a function solely of the advanced or the retarded time. The k-essence emergent Vaidya massive gravity rainbow mass function is also different. This new type k-essence emergent Vaidya massive gravity rainbow metric has satisfied the required energy conditions. The existence of the locally naked central singularity, the strength and the strongness of the singularities for the rainbow deformations of the k-essence emergent Vaidya massive gravity metric are the interesting outcomes of the present work.
description: 20 pages, 5 figures, to be published in Chinese Physics C
Nonperturbative Evolution of Parton Quasi-Distributions
Creators: name: Radyushkin, Anatoly
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Using our formalism of parton virtuality distribution functions (VDFs) we establish a connection between the transverse momentum dependent distributions (TMDs) ${\cal F} (x, k_\perp^2)$ and quasi-distributions $Q(y,P_z)$ introduced recently by X. Ji for lattice QCD extraction of parton distributions $f(x)$. We build models for PQDs from the VDF-based models for soft TMDs, and analyze the $P_z$ dependence of the resulting PQDs. We observe a strong nonperturbative evolution of PQDs for small and moderately large values of $P_z$ reflecting the transverse momentum dependence of TMDs. Thus, the study of PQDs on the lattice in the domain of strong nonperturbative effects opens a new perspective for investigation of the 3-dimensional hadron structure.
description: Version to appear in Physics Letters B
Information négative sur la caremère (cornemuse à bouche)
Creators: name: Musée National Des Arts Et Traditions Populaires (Paris)
name: Centre D'ethnologie Française
Publisher: name: École des Hautes Études en Sciences Sociales; Institut  interdisciplinaire d'anthropologie du contemporain (Paris); Laboratoire d'anthropologie et d'histoire de l'institution de la culture (Paris)
Year: 2022

Abstract
Towards the computational analysis of a peripheral literary tradition: The case of Alsatian theater
Creators: name: Ruiz Fabo, Pablo
Publisher: name: Zenodo
Year: 2024
Subjects: Alsatian theater
Computational Literary Studies

description: Dialect theater in Alsatian (a set of Germanic varieties spoken in Alsace, Eastern France) is a rich tradition that, unlike the major European dramatic traditions, has not been explored so far using computational means. Our project, called MeThaL (Towards a Macroanalysis of Theater in Alsatian) is creating the first large publicly available corpus of Alsatian theater encoded in TEI. In this session we first present our corpus development method to go from paper or digitized sources to TEI-encoded plays. Then we present our work on character analysis and emotion analysis on the material.
Regressing Relative Fine-Grained Change for Sub-Groups in Unreliable Heterogeneous Data Through Deep Multi-Task Metric Learning
Creators: name: Mahony, Niall O'
name: Campbell, Sean
name: Krpalkova, Lenka
name: Walsh, Joseph
name: Riordan, Daniel
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Fine-Grained Change Detection and Regression Analysis are essential in many applications of ArtificialIntelligence. In practice, this task is often challenging owing to the lack of reliable ground truth information andcomplexity arising from interactions between the many underlying factors affecting a system. Therefore,developing a framework which can represent the relatedness and reliability of multiple sources of informationbecomes critical. In this paper, we investigate how techniques in multi-task metric learning can be applied for theregression of fine-grained change in real data.The key idea is that if we incorporate the incremental change in a metric of interest between specific instancesof an individual object as one of the tasks in a multi-task metric learning framework, then interpreting thatdimension will allow the user to be alerted to fine-grained change invariant to what the overall metric isgeneralised to be. The techniques investigated are specifically tailored for handling heterogeneous data sources,i.e. the input data for each of the tasks might contain missing values, the scale and resolution of the values is notconsistent across tasks and the data contains non-independent and identically distributed (non-IID) instances. Wepresent the results of our initial experimental implementations of this idea and discuss related research in thisdomain which may offer direction for further research.
Information négative sur les appellations gasconnes d'une flûte" et sur la boha
Creators: name: Musée National Des Arts Et Traditions Populaires (Paris)
name: Centre D'ethnologie Française
Publisher: name: École des Hautes Études en Sciences Sociales; Institut  interdisciplinaire d'anthropologie du contemporain (Paris); Laboratoire d'anthropologie et d'histoire de l'institution de la culture (Paris)
Year: 2022

Abstract
Stability Analysis of a Class of Discontinuous Discrete-Time Systems
Creators: name: Ferrante, Francesco
name: Valmorbida, Giorgio
Publisher: name: arXiv
Year: 2022
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The stability analysis of a class of discontinuous discrete-time systems is studied in this paper. The system under study is modeled as a feedback interconnection of a linear system and a set-valued nonlinearity. An equivalent representation, based on a constrained optimization problem, is proposed to represent the set-valued nonlinearity via a collection of linear and quadratic constraints. Relying on this description and on the use of a generalized quadratic set-valued Lyapunov functions, sufficient conditions in the form of linear matrix inequalities for global exponential stability are obtained. Numerical examples corroborate the theoretical findings.
description: Matches the published version
Viscosity of a sheared correlated (near-critical) model fluid in confinement
Creators: name: Rohwer, Christian M.
name: Gambassi, Andrea
name: Krüger, Matthias
Publisher: name: arXiv
Year: 2017
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Second-order phase transitions are characterized by a divergence of the spatial correlation length of the order parameter fluctuations. For confined systems, this is known to lead to remarkable equilibrium physical phenomena, including finite-size effects and critical Casimir forces. We explore here some non-equilibrium aspects of these effects in the stationary state resulting from the action of external forces: by analyzing a model of a correlated fluid under shear, spatially confined by two parallel plates, we study the resulting viscosity within the setting of (Gaussian) Landau-Ginzburg theory. Specifically, we introduce a model in which the hydrodynamic velocity field (obeying the Stokes equation) is coupled to an order parameter with dissipative dynamics. The well-known Green-Kubo relation for bulk systems is generalized for confined systems. This is shown to result in a non-local Stokes equation for the fluid flow, due to the correlated fluctuations. The resulting effective shear viscosity shows universal as well as non-universal contributions, which we study in detail. In particular, the deviation from the bulk behavior is universal, depending on the ratio of the correlation length and the film thickness $L$. In addition, at the critical point the viscosity is proportional to $\ell/L$, where $\ell$ is a dynamic length scale. These findings are expected to be experimentally observable, especially for systems where the bulk viscosity is affected by critical fluctuations.
description: 16 pages, 10 figures. Title modified and minor typos fixed from previous version
Theoretical study of HfF$^+$ cation to search for the T,P-odd interactions
Creators: name: Skripnikov, L. V.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The combined all-electron and two-step approach is applied to calculate the molecular parameters which are required to interpret the ongoing experiment to search for the effects of manifestation of the T,P-odd fundamental interactions in the HfF$^+$ cation by Cornell/Ye group [Science 342, 1220 (2013); J. Mol. Spectrosc. 300, 12 (2014)]. The effective electric field that is required to interpret the experiment in terms of the electron electric dipole moment is found to be 22.5 GV/cm. In Ref. [Phys. Rev. D 89, 056006 (2014)] it was shown that another source of T,P-odd interaction, the scalar-pseudoscalar nucleus-electron interaction with the dimensionless strength constant $k_{T,P}$ can dominate over the direct contribution from the electron EDM within the standard model and some of its extensions. Therefore, for the comprehensive and correct interpretation of the HfF$^+$ experiment one should also know the molecular parameter $W_{T,P}$ the value of which is reported here to be 20.1 kHz.
Functional structure of mathematical physics
Creators: name: Khripkov, Alexander Ivanovich
Publisher: name: Zenodo
Year: 2023
Subjects: number theory, nuclear functions, functional synthesis, phase limits, functional structures, nuclear reorientations, nuclear transitions.

description: Mathematical analysis of the functional process of "expansion" of the Hydrogen atom made it possible to establish a certain dependence of the contour periodic polar limits formed due to the reduction in the charge number. As a result of comparisons with the mathematical data of the actual numerical values of protons and neutrons of all isotopes of chemical elements, the regularity of the relationship between the polar limits of "compression" and "expansion" under the conditions of atomic circuits was contours. These data revealed and expanded the Mössbauer effect, replacing the external impact of elastic resonance with natural internal functional transitions, proton - neutron, neutron - proton, from parent to daughter nuclei. As a result, the functional sequence of these transitions revealed a discrepancy between the orders of chemical elements, between the periodic table of Mendeleev, and the sequence order of the composition of the functional structure of the charge of Hydrogen. Based on these data, the functional structures of each proton and neutron of a separate isotope of the chemical symbol were compiled. Thus, a reorientation process was established - a functional process that determines the polar structure of a charge unit, consisting simultaneously of positive and negative values, located in different compositions of numerical nucleons. This is cold synthesis - the synthesis of the internal functional structure, which is in variable conditions of functional interactions between the limits of the processes of "compression" and "expansion", the internal and external content of the contour of the unit of nucleon limits.
$P-$state Positronium for Precision Physics: an Ultrafine Splitting at $α^6$
Creators: name: Lamm, Henry
Publisher: name: arXiv
Year: 2017
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: An "ultrafine" splitting in positronium between the $L=1$ spin-singlet state and the spin-average of the spin-triplet states is shown to arise only at order $α^6$. The QED prediction for $n=2$ states is $Δ_{2,P}=(683/172800)mα^6=73.7(1.2)$ kHz. This represents the smallest leading-order QED splitting known. Current experimental efforts could observe this splitting, and its observation can constrain new ultralight interactions, such as axions or $Z'$.
description: 4 pages, no figures
Causal Relativistic Hydrodynamics of Conformal Fermi-Dirac Gases
Creators: name: Aguilar, Milton
name: Calzetta, Esteban
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper we address the derivation of causal relativistic hydrodynamics, formulated within the framework of Divergence Type Theories (DTTs), from kinetic theory for spinless particles obeying Fermi-Dirac statistics. The approach leads to expressions for the particle current and energy momentum tensor that are formally divergent, but may be given meaning through a process of regularization and renormalization. We demonstrate the procedure through an analysis of the stability of an homogeneous anisotropic configuration. In the DTT framework, as in kinetic theory, these configurations are stable. By contrast, hydrodynamics as derived from the Grad approximation would predict that highly anisotropic configurations are unstable.
description: Accepted for publication in Phys. Rev. D
Additional file 1 of Context modulates evidence accumulation in split-second handball penalty decisions
Creators: name: Weinberg, Henrietta
name: Müller, Florian
name: Cañal-Bruland, Rouwen
Publisher: name: figshare
Year: 2025
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Statistics
subject: FOS: Mathematics
subject: Science Policy

description: Additional file1 (PDF 538 kb)
title: 3D geological model of the Napier-Hastings urban area [explanatory text]
Creators: name: Begg, John G.
name: Jones, Katie E.
name: Lee, Julie M.
name: Tschritter, Conny
Publisher: name: GNS Science
Year: 2022

description: he 3D geological model of the Napier-Hastings urban area is a component of the GNS Science Geological Map 7 product (GNSGM7) and accompanies a geological map of the Napier-Hastings urban area (Lee et al. 2020), a geomorphological map (Begg et al., in prep.) and a general geological text (Lee et al., in prep.). The 3D geological model provides a generalised conceptual framework for understanding the subsurface geological materials beneath the Heretaunga Plains, with a focus on the near-surface deposits. The major features of this 3D geological model include: Representation of the partly fault-bound sedimentary basin in the Napier-Hastings area. Basal contacts of the Early to Middle Pleistocene, Maraekakaho Formation and Heretaunga Formation. Thickness of the Early to Middle Pleistocene, Maraekakaho Formation and Heretaunga Formation. Delineation of Holocene-age geological units. The 3D geological model dataset is published in electronic form only with this accompanying report. This report provides a description of the modelled geological units, the data sources used for the modelling and an inventory of the available derivative products. (The authors)
Hybrid-space density matrix renormalization group study of the doped two-dimensional Hubbard model
Creators: name: Ehlers, G.
name: White, S. R.
name: Noack, R. M.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The performance of the density matrix renormalization group (DMRG) is strongly influenced by the choice of the local basis of the underlying physical lattice. We demonstrate that, for the two-dimensional Hubbard model, the hybrid real-momentum space formulation of the DMRG is computationally more efficient than the standard real-space formulation. In particular, we show that the computational cost for fixed bond dimension of the hybrid-space DMRG is approximately independent of the width of the lattice, in contrast to the real-space DMRG, for which it is proportional to the width squared. We apply the hybrid-space algorithm to calculate the ground state of the doped two-dimensional Hubbard model on cylinders of width four and six sites; at $n=0.875$ filling, the ground state exhibits a striped charge-density distribution with a wavelength of eight sites for both $U/t=4.0$ and $U/t=8.0$. We find that the strength of the charge ordering depends on $U/t$ and on the boundary conditions.Furthermore, we investigate the magnetic ordering as well as the decay of the static spin, charge, and pair-field correlation functions.
description: 16 pages, 14 figures
Urban retail dynamics: insights from percolation theory and spatial interaction modelling
Creators: name: Piovani, Duccio
name: Molinero, Carlos
name: Wilson, Alan
Publisher: name: arXiv
Year: 2017
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: The study of the properties and structure of a city's road network has for many years been the focus of much work, as has the mathematical modelling of the location of its retail activity and of the emergence of clustering in retail centres. Despite these two phenomena strongly depending on one another and their fundamental importance in understanding cities, little work has been done in order to compare their evolution and their local and global properties. The contribution of this paper aims to highlight the strong relationship that retail dynamics have with the hierarchical structure of the underlying road network. We achieve this by comparing the results of the entropy maximising retail model with a percolation analysis of the road network in the city of London. We interpret the great agreement in the hierarchical spatial organisation outlined by these two approaches as new evidence of the interdependence of these two crucial dimensions of a city's life.
description: 11 pages, 5 figures
Velocity Segregation and Systematic Biases In Velocity Dispersion Estimates With the SPT-GMOS Spectroscopic Survey
Creators: name: Bayliss, Matthew. B.
name: Zengo, Kyle
name: Ruel, Jonathan
name: Benson, Bradford A.
name: Bleem, Lindsey E.
name: Bocquet, Sebastian
name: Bulbul, Esra
name: Brodwin, Mark
name: Capasso, Raffaella
name: Chiu, I-non
name: McDonald, Michael
name: Rapetti, David
name: Saro, Alex
name: Stalder, Brian
name: Stark, Antony A.
name: Strazzullo, Veronica
name: Stubbs, Christopher W.
name: Zenteno, Alfredo
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The velocity distribution of galaxies in clusters is not universal; rather, galaxies are segregated according to their spectral type and relative luminosity. We examine the velocity distributions of different populations of galaxies within 89 Sunyaev Zel'dovich (SZ) selected galaxy clusters spanning $ 0.28 < z < 1.08$. Our sample is primarily draw from the SPT-GMOS spectroscopic survey, supplemented by additional published spectroscopy, resulting in a final spectroscopic sample of 4148 galaxy spectra---2868 cluster members. The velocity dispersion of star-forming cluster galaxies is $17\pm4$% greater than that of passive cluster galaxies, and the velocity dispersion of bright ($m < m^{*}-0.5$) cluster galaxies is $11\pm4$% lower than the velocity dispersion of our total member population. We find good agreement with simulations regarding the shape of the relationship between the measured velocity dispersion and the fraction of passive vs. star-forming galaxies used to measure it, but we find a small offset between this relationship as measured in data and simulations in which suggests that our dispersions are systematically low by as much as 3\% relative to simulations. We argue that this offset could be interpreted as a measurement of the effective velocity bias that describes the ratio of our observed velocity dispersions and the intrinsic velocity dispersion of dark matter particles in a published simulation result. Measuring velocity bias in this way suggests that large spectroscopic surveys can improve dispersion-based mass-observable scaling relations for cosmology even in the face of velocity biases, by quantifying and ultimately calibrating them out.
description: Accepted to ApJ; 21 pages, 11 figures, 5 tables
Gaia 1 and 2. A pair of new Galactic star clusters
Creators: name: Koposov, S. E.
name: Belokurov, V.
name: Torrealba, G.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the results of the very first search for faint Milky Way satellites in the Gaia data. Using stellar positions only, we are able to re-discover objects detected in much deeper data as recently as the last couple of years. While we do not identify new prominent ultra-faint dwarf galaxies, we report the discovery of two new star clusters, Gaia 1 and Gaia 2. Gaia 1 is particularly curious, as it is a massive (2.2$\times$10$^4$ M$_\odot$), large ($\sim$9 pc) and nearby (4.6 kpc) cluster, situated 10' away from the brightest star on the sky, Sirius! Even though this satellite is detected at significance in excess of 10, it was missed by previous sky surveys. We conclude that Gaia possesses powerful and unique capabilities for satellite detection thanks to its unrivalled angular resolution and highly efficient object classification.
description: 9 pages, accepted to MNRAS
К ВОССТАНОВЛЕНИЮ ВИДОВОЙ САМОСТОЯТЕЛЬНОСТИ НЕКОТОРЫХ ХВОЙНЫХ РОССИЙСКОГО ДАЛЬНЕГО ВОСТОКА
Creators: name: УРУСОВ, В.М.
name: ВАРЧЕНКО, Л.И.
name: МИЛОРАДОВ, Д.Е.
Publisher: name: ИП Мироманова Ирина Витальевна
Year: 2023
Subjects: ТАКСОНЫ НЕГИБРИДНОЙ И ГИБРИДНОЙ ПРИРОДЫ
СИНГАМЕОНЫ
МЕЖСЕКЦИОННЫЕ СЛОЖНЫЕ ГИБРИДЫ
ГИБРИДЫ ВНУТРИ ВИДОВЫХ РЯДОВ
ГЕОЛОГИЧЕСКИЙ ВОЗРАСТ И АРЕАЛЫ
СТВОЛОВЫЕ ДРЕВЕСИНА
ПРЕВЫШЕНИЕ РОСТА НАД БЛИЖАЙШИМИ ГОМОЛОГАМИ

description: В последние годы мы занимались уточнением систематики и биологии хвойных российского Дальнего Востока (РДВ), уточняя положения монографии 2007 г. Пересмотрены таксономия, распространение и биология гибридных и негибридных видов с возвращением видового статуса, пропущенным ранними исследованиями или незаслуженно забытым 7 таксонам. Данная публикация предваряет полную сводку голосеменных РДВ 2021 г., ещё не публиковавшуюся. В ней уже будет 48 видов хвойных, включая приводимые и здесь. Причём число гибридов существенно пополнится из-за переосмысления критических в таксономии признаков, например, листовых следов и семенных и кроющих чешуй.
$Λ$ is Coming: Parametrizing Freezing Fields
Creators: name: Linder, Eric V.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We explore freezing dark energy, where the evolution of the field approaches that of a cosmological constant at late times. We propose two general, two parameter forms to describe the class of freezing field models, in analogy to ones for thawing fields, here based on the physics of the flow parameter or the calibrated $w$-$w'$ phase space. Observables such as distances and Hubble parameters are fit to within 0.1%, and the dark energy equation of state generally to within better than 1%, of the exact numerical solutions.
description: 5 pages, 2 figures; v2 minor changes to match published version
Special education for exceptional children in Texas
Creators: name: Robinson, Hoyt Ellsworth, 1901-
Publisher: name: The University of Texas at Austin
Year: 1948
Subjects: subject: Special education
subject: Texas
subject: Children with disabilities
subject: State-wide surveys
subject: Special education--Texas
subject: Children with disabilities--Education--Texas

description: The purpose of this study of special education for exceptional children in Texas is to determine the status and needs and then formulate a simple, workable plan whereby any school having handicapped children might organize for and have definite directions for providing the necessary special education. ... The problems to be attempted in this study are to determine by a state-wide survey the number, type, and location of such children, to ascertain the current services available to the handicapped in Texas, to determine the college training and salaries of the special teachers assigned to the work, to determine an adequate, wholesome foundation for special education, to formulate a plan for organizing and administering the program, and to prepare specific suggestions for classroom help for such handicapped children
Entanglement-Enhanced Quantum Metrology in Colored Noise by Quantum Zeno Effect
Creators: name: Long, Xinyue
name: He, Wan-Ting
name: Zhang, Na-Na
name: Tang, Kai
name: Lin, Zidong
name: Liu, Hongfeng
name: Nie, Xinfang
name: Feng, Guanru
name: Li, Jun
name: Xin, Tao
name: Ai, Qing
name: Lu, Dawei
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: In open quantum systems, the precision of metrology inevitably suffers from the noise. {In Markovian open quantum dynamics, the precision can not be improved by using entangled probes although the measurement time is effectively shortened.} However, it was predicted over one decade ago that in a non-Markovian one, the error can be significantly reduced by the quantum Zeno effect (QZE) [Chin, Huelga, and Plenio, Phys. Rev. Lett. \textbf{109}, 233601 (2012)]. In this work, we apply a recently-developed quantum simulation approach to experimentally verify that entangled probes can improve the precision of metrology by the QZE. Up to $n=7$ qubits, we demonstrate that the precision has been improved by a factor of $n^{1/4}$, which is consistent with the theoretical prediction. Our quantum simulation approach may provide an intriguing platform for experimental verification of various quantum metrology schemes.
description: 6 pages, 4 figures
Extremal Quantile Regression: An Overview
Creators: name: Chernozhukov, Victor
name: Fernández-Val, Iván
name: Kaji, Tetsuya
Publisher: name: arXiv
Year: 2016
Subjects: subject: Methodology (stat.ME)
subject: Econometrics (econ.EM)
subject: FOS: Computer and information sciences
subject: FOS: Economics and business

description: Extremal quantile regression, i.e. quantile regression applied to the tails of the conditional distribution, counts with an increasing number of economic and financial applications such as value-at-risk, production frontiers, determinants of low infant birth weights, and auction models. This chapter provides an overview of recent developments in the theory and empirics of extremal quantile regression. The advances in the theory have relied on the use of extreme value approximations to the law of the Koenker and Bassett (1978) quantile regression estimator. Extreme value laws not only have been shown to provide more accurate approximations than Gaussian laws at the tails, but also have served as the basis to develop bias corrected estimators and inference methods using simulation and suitable variations of bootstrap and subsampling. The applicability of these methods is illustrated with two empirical examples on conditional value-at-risk and financial contagion.
description: 32 pages, 4 tables, 7 figures, forthcoming in the Handbook of Quantile Regression
Tunable high-harmonic generation by chromatic focusing of few-cycle laser pulses
Creators: name: Holgado, Warein
name: Hernández-García, Carlos
name: Alonso, Benjamín
name: Miranda, Miguel
name: Silva, Francisco
name: Varela, Óscar
name: Hernández-Toro, Juan
name: Plaja, Luis
name: Crespo, Helder
name: Sola, Íñigo J.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: In this work we study the impact of chromatic focusing of few-cycle laser pulses on high-order harmonic generation (HHG) through analysis of the emitted extreme ultraviolet (XUV) radiation. Chromatic focusing is usually avoided in the few-cycle regime, as the pulse spatio-temporal structure may be highly distorted by the spatiotemporal aberrations. Here, however, we demonstrate it as an additional control parameter to modify the generated XUV radiation. We present experiments where few-cycle pulses are focused by a singlet lens in a Kr gas jet. The chromatic distribution of focal lengths allows us to tune HHG spectra by changing the relative singlet-target distance. Interestingly, we also show that the degree of chromatic aberration needed to this control does not degrade substantially the harmonic conversion efficiency, still allowing for the generation of supercontinua with the chirped-pulse scheme, demonstrated previously for achromatic focussing. We back up our experiments with theoretical simulations reproducing the experimental HHG results depending on diverse parameters (input pulse spectral phase, pulse duration, focus position) and proving that, under the considered parameters, the attosecond pulse train remains very similar to the achromatic case, even showing cases of isolated attosecond pulse generation for near single-cycle driving pulses.
description: 8 pages, 7 figures
Structure distribution and turbulence in self-consistently supernova-driven ISM of multiphase magnetized galactic discs
Creators: name: Iffrig, Olivier
name: Hennebelle, Patrick
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Galaxy evolution and star formation are two multi-scale problems tightly linked to each other. To understand the interstellar cycle, which triggers galaxy evolution, it is necessary to describe simultaneously the large-scale evolution widely induced by the feedback processes and the details of the gas dynamics that controls the star formation process through gravitational collapse. We perform a set of three-dimensional high-resolution numerical simulations of a turbulent, self-gravitating and magnetized interstellar medium within a $1\ \mathrm{kpc}$ stratified box with supernova feedback correlated with star-forming regions. In particular, we focus on the role played by the magnetic field and the feedback on the galactic vertical structure, the star formation rate (SFR) and the flow dynamics. For this purpose we vary their respective intensities. We extract properties of the dense clouds arising from the turbulent motions and compute power spectra of various quantities. Using a distribution of supernovae sufficiently correlated with the dense gas, we find that supernova explosions can reproduce the observed SFR, particularly if the magnetic field is on the order of a few $μG$. The vertical structure, which results from a dynamical and an energy equilibrium is well reproduced by a simple analytical model, which allows us to estimate the coupling between the gas and the supernovae. We found the coupling to be rather low and on the order of 1.5$\%$. Strong magnetic fields may help to increase this coupling by a factor of about 2-3. To characterize the flow we compute the power spectra of various quantities in 3D but also in 2D in order to account for the stratification of the galactic disc.
description: To be published in A&A
Gas near a wall: a shortened mean free path, reduced viscosity, and the manifestation of a turbulent Knudsen layer in the Navier-Stokes solution of a shear flow
Creators: name: Abramov, Rafail V.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: For the gas near a solid planar wall, we propose a scaling formula for the mean free path of a molecule as a function of the distance from the wall, under the assumption of a uniform distribution of the incident directions of the molecular free flight. We subsequently impose the same scaling onto the viscosity of the gas near the wall, and compute the Navier-Stokes solution of the velocity of a shear flow parallel to the wall. This solution exhibits the Knudsen velocity boundary layer in agreement with the corresponding Direct Simulation Monte Carlo computations for argon and nitrogen. We also find that the proposed mean free path and viscosity scaling sets the second derivative of the velocity to infinity at the wall boundary of the flow domain, which suggests that the gas flow is formally turbulent within the Knudsen boundary layer near the wall.
description: 12 pages, 3 figures
Notes on worldvolume supersymmetries for D-branes on AdS_5 X S^5 background
Creators: name: Park, Jaemo
name: Shin, Hyeonjoon
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We revisit the 1/2-BPS D-branes on the AdS$_5\times$S$^5$ background. Based only on the classification of 1/2-BPS D-branes obtained by the covariant open string description, we consider various purely static configurations of D-branes without any worldvolume flux on the AdS$_5\times$S$^5$ background. Under the covariant $κ$ symmetry fixing condition, we investigate which part the spacetime supersymmetries is preserved on the D-brane worldvolume and obtain the associated worldvolume supersymmetry transformation rules to leading order in the worldvolume fluctuating fields. It is shown that, for purely static configurations without any worldvolume flux, only the AdS type D-branes, in which the AdS radial direction is one of worldvolume coordinates, are 1/2-BPS.
description: 32 pages, reference added
Appendix
Creators: name: jang, jinsun
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 320208
subject: Endocrinology

description: Genetic Insights into Sulfonylurea Responsiveness in Type 2 Diabetes: A Mechanism-Oriented Functional Genomics Study in Korean and UK Biobank Cohortsappendix file
Design and Evaluation of IPFS: A Storage Layer for the Decentralized Web
Creators: name: Trautwein, Dennis
name: Raman, Aravindh
name: Tyson, Gareth
name: Castro, Ignacio
name: Scott, Will
name: Schubotz, Moritz
name: Gipp, Bela
name: Psaras, Yiannis
Publisher: name: arXiv
Year: 2022
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences
subject: C.2.2; C.2.1

description: Recent years have witnessed growing consolidation of web operations. For example, the majority of web traffic now originates from a few organizations, and even micro-websites often choose to host on large pre-existing cloud infrastructures. In response to this, the "Decentralized Web" attempts to distribute ownership and operation of web services more evenly. This paper describes the design and implementation of the largest and most widely used Decentralized Web platform - the InterPlanetary File System (IPFS) - an open-source, content-addressable peer-to-peer network that provides distributed data storage and delivery. IPFS has millions of daily content retrievals and already underpins dozens of third-party applications. This paper evaluates the performance of IPFS by introducing a set of measurement methodologies that allow us to uncover the characteristics of peers in the IPFS network. We reveal presence in more than 2700 Autonomous Systems and 152 countries, the majority of which operate outside large central cloud providers like Amazon or Azure. We further evaluate IPFS performance, showing that both publication and retrieval delays are acceptable for a wide range of use cases. Finally, we share our datasets, experiences and lessons learned.
description: 14 pages, 11 figures
Present Status and Future Tests of the Higgsino-Singlino Sector in the NMSSM
Creators: name: Ellwanger, Ulrich
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The light higgsino-singlino scenario of the NMSSM allows to combine a naturally small $μ$ parameter with a good dark matter relic density. Given the new constraints on spin-dependent and spin-independent direct detection cross sections in 2016 we study first which regions in the plane of chargino- and LSP-masses below 300 GeV remain viable. Subsequently we investigate the impact of searches for charginos and neutralinos at the LHC, and find that the limits from run I do not rule out any additional region in this plane. Only the HL-LHC at 3000 fb$^{-1}$ will test parts of this plane corresponding to higgsino-like charginos heavier than 150 GeV and relatively light singlinos, but notably the most natural regions with lighter charginos seem to remain unexplored.
description: 16 pages, 2 figures, added discussion on the remaining fine-tuning
Mass-Imbalanced Ionic Hubbard Chain
Creators: name: Sekania, Michael
name: Baeriswyl, Dionys
name: Jibuti, Luka
name: Japaridze, George I.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A repulsive Hubbard model with both spin-asymmetric hopping (${t_\uparrow\neq t_\downarrow}$) and a staggered potential (of strength $Δ$) is studied in one dimension. The model is a compound of the mass-imbalanced (${t_\uparrow\neq t_\downarrow}$, ${Δ=0}$) and ionic (${t_\uparrow = t_\downarrow}$, ${Δ>0}$) Hubbard models, and may be realized by cold atoms in engineered optical lattices. We use mostly mean-field theory to determine the phases and phase transitions in the ground state for a half-filled band (one particle per site). We find that a period-two modulation of the particle (or charge) density and an alternating spin density coexist for arbitrary Hubbard interaction strength, ${U\geqslant 0}$. The amplitude of the charge modulation is largest at ${U=0}$, decreases with increasing $U$ and tends to zero for ${U\rightarrow\infty}$. The amplitude for spin alternation increases with $U$ and tends to saturation for ${U\rightarrow\infty}$. Charge order dominates below a critical value $U_c$, whereas magnetic order dominates above. The mean-field Hamiltonian has two gap parameters, $Δ_\uparrow$ and $Δ_\downarrow$, which have to be determined self-consistently. For ${UU_c}$ they have different signs, and for ${U=U_c}$ one gap parameter jumps from a positive to a negative value. The weakly first-order phase transition at $U_c$ can be interpreted in terms of an avoided criticality (or metallicity). The system is reluctant to restore a symmetry that has been broken explicitly.
description: 14 pages, 8 figures
Search for LBVs in the Local Volume galaxies: study of four stars in NGC 4449
Creators: name: Solovyeva, Y.
name: Vinokurov, A.
name: Sarkisyan, A.
name: Kostenkov, A.
name: Atapin, K.
name: Fabrika, S.
name: Oparin, D.
name: Valeev, A.
name: Bizyaev, D.
name: Nedialkov, P.
name: Spiridonova, O.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We continue to search for LBV stars in galaxies outside the Local Group. In this work, we have investigated four luminous stars in NGC 4449. Multiple spectral observations carried out for J122810.94+440540.6, J122811.70+440550.9, and J122809.72+440514.8 revealed the emission features in their spectra that are characteristic of LBVs. Photometry showed noticeable brightness changes of J122809.72+440514.8 ($ΔI=0.69\pm0.13^m$) and J122817.83+440630.8 ($ΔR=2.15\pm0.13^m$), while the variability of J122810.94+440540.6 and J122811.70+440550.9 does not exceed $0.3^m$ regardless of the filter. We have obtained estimates of the interstellar reddening, photosphere temperatures, and bolometric luminosities $\log(\text{L}_\text{Bol}/\text{L}_{\odot}) \approx 5.24-6.42$. Using the CMFGEN code, we have modelled the spectrum of the cold state of J122809.72+440514.8 ($T_{\text{eff}}=9300\,$K) and have obtained possible value of the mass loss rate $\dot{M} = 5.2\times10^{-3}\,M_{\odot}\,yr^{-1}$. Based on the observational properties, J122809.72+440514.8 and J122817.83+440630.8 were classified as LBVs, while the other two stars were classified as LBV candidates or B[e]-supergiants candidates