cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Consistent dust and gas models for protoplanetary disks: II. Chemical networks and rates
Creators: name: Kamp, Inga
name: Thi, Wing-Fai
name: Woitke, Peter
name: Rab, Christian
name: Bouma, Sietske
name: Menard, Francois
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Aims. We define a small and large chemical network which can be used for the quantitative simultaneous analysis of molecular emission from the near-IR to the submm. We revise reactions of excited molecular hydrogen, which are not included in UMIST, to provide a homogeneous database for future applications. Methods. We use the thermo-chemical disk modeling code ProDiMo and a standard T Tauri disk model to evaluate the impact of various chemical networks, reaction rate databases and sets of adsorption energies on a large sample of chemical species and emerging line fluxes from the near-IR to the submm wavelength range. Results. We find large differences in the masses and radial distribution of ice reservoirs when considering freeze-out on bare or polar ice coated grains. Most strongly the ammonia ice mass and the location of the snow line (water) change. As a consequence molecules associated to the ice lines such as N2H+ change their emitting region; none of the line fluxes in the sample considered here changes by more than 25% except CO isotopologues, CN and N2H+ lines. The three-body reaction N+H2+M plays a key role in the formation of water in the outer disk. Besides that, differences between the UMIST 2006 and 2012 database change line fluxes in the sample considered here by less than a factor 2 (a subset of low excitation CO and fine structure lines stays even within 25%); exceptions are OH, CN, HCN, HCO+ and N2H+ lines. However, different networks such as OSU and KIDA 2011 lead to pronounced differences in the chemistry inside 100 au and thus affect emission lines from high excitation CO, OH and CN lines. H2 is easily excited at the disk surface and state-to-state reactions enhance the abundance of CH+ and to a lesser extent HCO+. For sub-mm lines of HCN, N2H+ and HCO+, a more complex larger network is recommended. ABBREVIATED
description: accepted for publication in A&A
Mean First Passage Time in Periodic Attractors
Creators: name: Priel, Avner
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: Dynamical Systems (math.DS)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The properties of the mean first passage time in a system characterized by multiple periodic attractors are studied. Using a transformation from a high dimensional space to 1D, the problem is reduced to a stochastic process along the path from the fixed point attractor to a saddle point located between two neighboring attractors. It is found that the time to switch between attractors depends on the effective size of the attractors, $τ$, the noise, $ε$, and the potential difference between the attractor and an adjacent saddle point as: $~T = {c \over τ} \exp({τ\over ε} Δ{\cal{U}})~$; the ratio between the sizes of the two attractors affects $Δ{\cal{U}}$. The result is obtained analytically for small $τ$ and confirmed by numerical simulations. Possible implications that may arise from the model and results are discussed.
description: 14 pages, 3 figures, submitted to journal of physics A
Simulation and Analysis of Quality of Service (QoS) Parameters of Voice over IP (VoIP) Traffic through Heterogeneous Networks
Creators: name: Miraz, Mahdi H.
name: Molvi, Suhail A.
name: Ganie, Muzafar A.
name: Ali, Maaruf
name: Hussein, AbdelRahman H.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Identifying those causes and parameters that affect the Quality of Service (QoS) of Voice-over-Internet Protocol (VoIP) through heterogeneous networks such as WiFi, WiMAX and between them are carried out using the OPNET simulation tool. Optimization of the network for both intra- and intersystem traffic to mitigate the deterioration of the QoS are discussed. The average value of the jitter of the VoIP traffic traversing through the WiFi-WiMAX network was observed to be higher than that of utilizing WiFi alone at some points in time. It is routinely surmised to be less than that of transiting across the WiFi network only and obviously higher than passing through the increased bandwidth network of WiMAX. Moreover, both the values of the packet end-to-end delay and the Mean Opinion Score (MOS) were considerably higher than expected. The consequences of this optimization, leading to a solution, which can ameliorate the QoS over these networks are analyzed and offered as the conclusion of this ongoing research.
description: Voice over Internet Protocol (VoIP); Quality of Service (QoS); Mean Opinion Score (MOS); simulation
IceProd Supercomputer Mode: How IceCube Production Runs on Firewalled Clusters
Creators: name: Schultz, David
Publisher: name: Zenodo
Year: 2019

description: For the past several years, IceCube has embraced a central, global overlay grid of HTCondor glideins to run jobs. With guaranteed network connectivity, the jobs themselves transferred data files, software, logs, and status messages. Then we were given access to a supercomputer, with no worker node internet access. As the push towards HPC increased, we had access to several of these machines, but no easy way to use them. So we went back to the basics of running production jobs, staging data in and out and running offline jobs on the local queue. But we made sure it still integrated directly with our dataset management and file metadata systems, to not lose everything we had gained in recent years.
Rocinha: Twenty-nine years of witnessing contrasts
Creators: Lima, Leandro
Publisher: name: Columbia University
Year: 2012
Subjects: Community development, Urban
Urban poor--Social conditions
Squatter settlements
City planning

description: I remember Rocinha twenty years ago. It was then the largest favela (shantytown) in Latin America, but its people had another reason to be proud: despite the power of drug lords and the government’s neglect, it was the only favela in Rio de Janeiro to develop as a “normal” neighborhood.
The settlers from Brazil’s northeastern region who came to live in Rocinha were known to be people who tried to improve their living conditions, even though they were in an unknown territory and had left their families behind.
Although I was born in Rio, both my parents come from the northeast of Brazil, like most friends my age who live here. We were brought up to start working at an early age and generate income as soon as possible. However, I have always wanted to do something in Rocinha, since I believe there are lots of people who want to turn this place into a benchmark for actions designed to improve the life of favela-dwellers. Even before I started college, I already planned to do something big in Rocinha but had no idea of what it could be. It was during my freshman year as a student of journalism that I had the idea to start a community communications class, and FavelaDaRocinha.com was born. After six months online, there were ten people working on the website. They undertook every activity of the mainstream, conventional media – photography, writing, editorial meetings, and contacts with politicians and other important people to produce material. At the beginning, our common goal was to gain experience, a normal thing for undergraduates, and over time these first collaborators used this experience to enter the professional world.
Today, fifteen people work on the website. Since Rocinha’s pacification, in November 2011, we have gained international recognition thanks to the live coverage of this operation on Twitter. We also became news ourselves in the media all over Brazil, and also internationally in outlets such as Al-Jazeera and BBC.
IceCube Real-time Processing in AWS
Creators: name: Schultz, David
name: Riedel, Benedikt
Publisher: name: Zenodo
Year: 2019

description: IceCube sends out real-time alerts for neutrino events to other multi-messenger observatories around the world, including LIGO/VIRGO and electromagnetic observatories. The typical case is to send out an initial alert within one minute, then run more expensive processing to refine the direction and energy estimates and send a follow-on message. This second message has averaged 40 to 60 minutes of delay over the last two years, but is essential for pointing telescopes that have a small field of view. Recently we have moved from a local compute cluster to bursting in Amazon's cloud to increase parallelization and decrease the follow-on message delay. This involved creating new distribution architectures for event data and collection of results, to scale beyond a few thousand workers. We will give an overview of the steps we took, how many machines we are able to scale to, and the improvement in follow-on message delay.
Additional file 1 of Diversity and composition of the Panax ginseng rhizosphere microbiome in various cultivation modesand ages
Creators: name: Tong, Ai-Zi
name: Liu, Wei
name: Liu, Qiang
name: Xia, Guang-Qing
name: Zhu, Jun-Yi
Publisher: name: figshare
Year: 2021
Subjects: subject: Microbiology
subject: FOS: Biological sciences

description: Additional file 1: Figure S1. Estimation of microbial communities by alpha diversity. A, Alpha diversity of fungal communities between NCK and LCK. B, Alpha diversity of fungal communities among LCK, L1, L2, L3, L4, and L5. Estimation of alpha diversity representing two biological replicates for the NCK samples, and three biological replicates for the each rhizospheric soil sample (*p < 0.05, **p < 0.01, ***p < 0.001).
Direct Dark Matter Detection with Velocity Distribution in the Eddington approach
Creators: name: Vergados, J. D.
name: Owen, D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Exotic dark matter together with the vacuum energy (associated with the cosmological constant) seem to dominate the Universe. Thus its direct detection is central to particle physics and cosmology. Supersymmetry provides a natural dark matter candidate, the lightest supersymmetric particle (LSP). One essential ingredient in obtaining the direct detection rates is the density and the velocity distribution of the LSP in our vicinity. In the present paper we study simultaneously density profiles and velocity distributions in the context of the Eddington approach. In such an approach, unlike the commonly assumed Maxwell-Boltzmann (M-B) distribution, the upper bound of the velocity arises naturally from the potential.
description: 21 LaTex pages, 27 figures
Symplectically knotted codimension-zero embeddings of domains in $R^4$
Creators: name: Gutt, Jean
name: Usher, Michael
Publisher: name: arXiv
Year: 2017
Subjects: subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: 53D22

description: We show that many toric domains $X$ in $R^4$ admit symplectic embeddings $ϕ$ into dilates of themselves which are knotted in the strong sense that there is no symplectomorphism of the target that takes $ϕ(X)$ to $X$. For instance $X$ can be taken equal to a polydisk $P(1,1)$, or to any convex toric domain that both is contained in $P(1,1)$ and properly contains a ball $B^4(1)$; by contrast a result of McDuff shows that $B^4(1)$ (or indeed any four-dimensional ellipsoid) cannot have this property. The embeddings are constructed based on recent advances on symplectic embeddings of ellipsoids, though in some cases a more elementary construction is possible. The fact that the embeddings are knotted is proven using filtered positive $S^1$-equivariant symplectic homology.
description: 52 pages, 4 figures
Further evidence that the transition of 4D dynamical triangulation is 1st order
Creators: name: de Bakker, Bas V.
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We confirm recent claims that, contrary to what was generally believed, the phase transition of the dynamical triangulation model of four-dimensional quantum gravity is of first order. We have looked at this at a volume of 64,000 four-simplices, where the evidence in the form of a double peak histogram of the action is quite clear.
description: 12 pages, LaTeX2e
From exact-WKB toward singular quantum perturbation theory II
Creators: name: Voros, André
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 34B24, 34E20, 34L40, 81Q15, 81Q20

description: Following earlier studies, several new features of singular perturbation theory for one-dimensional quantum anharmonic oscillators are computed by exact WKB analysis; former results are thus validated.
description: Latex 17 pages, 1 figure; conference "Algebraic Analysis of Differential Equations" in honor of Prof. T. Kawai, Kyoto (Japan), July 2005; proceedings to be published by Springer
Supplementary document for Interplay of gain and loss in arrays of nonlinear plasmonic nanoparticles: toward parametric downconversion and amplification - 6864195.pdf
Creators: name: Shah, Syed
name: Clark, Michael
name: Zyss, Joseph
name: Sukharev, Maxim
name: Piryatinski, Andrei
Publisher: name: Optica Publishing Group
Year: 2024
Subjects: Uncategorized

description: LaTeX Files
Promoting Renewable Energy in Longyearbyen: A Sustainable Means to Prevent Svalbard's Environmental Degradation
Creators: Buonsanti, Fabio
Publisher: name: Columbia University
Year: 2011
Subjects: Coal mines and mining
Wind power
Solar energy
Renewable energy sources
Sustainability
Power resources

description: This study aims to separately investigate: 1.The political reasons behind Norway‟s controversial decision to encourage a coal enterprise on Svalbard (an archipelago in the Arctic) and, 2.The current and future potential of wind and solar energy as untapped renewable sources, locally exploited through a hybrid wind-PV system. In doing so this preliminary study attempts to provide insights for the implementation of an alternative, sustainable strategy to keep a Norwegian year-round settlement at Longyearbyen, Svalbard, without any recourse to polluting mining operations. Such an eventuality, despite the need for further research, is promisingly described as feasible, environmentally advantageous and politically conceivable.
title: ADCO, Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Cart. 32 (G 136), 745 folios, f. 0820
Creators: name: de la Côte d'Or, Archives départementales
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: cartulaire

description: Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Archives départementales de la Côte-d'Or, Cart. 32 (G 136), 745 folios, f. 0820, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Archives départementales de la Côte-d'Or, Cart. 32 (G 136), 745 folios, f. 0820, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye Saint-Étienne de Dijon
description: Provenance: http://www.wikidata.org/entity/Q15945019
Graphene coated subwavelength wires: A theoretical investigation of emission and radiation properties
Creators: name: Cuevas, Mauro
Publisher: name: arXiv
Year: 2017
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: This work analyzes the emission and radiation properties of a single optical emitter embedded in a graphene-coated subwavelength wire. We discuss the modifications of the spontaneous emission rate and the radiation efficiency as a function of the position and orientation of the dipole inside the wire. Our results show that these quantities can be enhanced by several orders of magnitude when the emission frequency coincides with one of the resonance frequencies of the graphene-coated wire. In particular, high-order plasmon resonances are excited when the emitter is moved from the wire center. The modifications by varying the orientation of the dipole in the near field distribution and in the far field intensities are shown.
Additional file 5 of An updated tribal classification of Lamiaceae based on plastome phylogenomics
Creators: name: Zhao, Fei
name: Chen, Ya-Ping
name: Salmaki, Yasaman
name: Drew, Bryan T.
name: Wilson, Trevor C.
name: Scheen, Anne-Cathrine
name: Celep, Ferhat
name: Bräuchler, Christian
name: Bendiksby, Mika
name: Wang, Qiang
name: Min, Dao-Zhang
name: Peng, Hua
name: Olmstead, Richard G.
name: Li, Bo
name: Xiang, Chun-Lei
Publisher: name: figshare
Year: 2021
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences

description: Additional file 5: Figure S3. Phylograms inferred from ML analysis of concatenated nucleotide sequences of the 3rd codon positions (dataset CR3). A, phylogram showing branch lengths, where tip names are absent follow the same order as shown in B. Scale bar represents the mean number of nucleotide substitutions per site. B, maximum likelihood bootstrap support values and Bayesian inference posterior probabilities are shown above and below the branches, respectively.
Infrared Spectra and Visibilities as Probes of the Outer Atmospheres of Red Supergiant Stars
Creators: name: Tsuji, Takashi
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In the light of the recent results of the stellar interferometry, we examine the nature of the extra molecular layer outside the photosphere of red super- giant stars, so far studied mostly with the use of the infrared spectra. Although the visibility data are more direct probes of the spatial structure of the outer atmosphere, it is essential that they are analyzed in combination with the spectral data of a wide spectral coverage. In the case of the M2 supergiant mu Cephei, several sets of data, both spectra and visibilities, strongly suggested the presence of an extra-molecular layer, and its basic parameters are estimated to be: excitation temperature T_ex = 1600 K, column densities of CO and H2O N_col = 3.0d+20/cm2, and inner radius R_in = 2.0R*. The result shows reasonable agreement with the one based on the infrared spectra alone, and this may be because the infrared spectra already include some information on the spatial structure of the outer atmosphere. It is important, however, that the model inferred from the spectra is now fully supported with the recent visibility data. In the case of the M2 supergiant alpha Orionis, the infrared spectra and visibilities show a consistent picture in that its molecular layer is closer to the photosphere (R_in = 1.3R*) with higher gas temperature (T_ex = 2250 K) and lower gas column density (N_col = 1.0d+20/cm2), compared with that of mu Cephei. Some controversy on the interpretation of the mid infrared data of alpha Orionis can be reconciled.
description: 47 pages, 14 Postscript figures, to be published in the Astrophysical Journal
Supplementary Material with further experimental results from Bare carbon electrodes as simple and efficient sensors for the quantification of caffeine in commercial beverages
Creators: name: Redivo, Luca
name: Stredanský, Miroslav
name: Angelis, Elisabetta De
name: Navarini, Luciano
name: Resmini, Marina
name: Ľubomír Švorc
Publisher: name: The Royal Society
Year: 2018
Subjects: subject: 30199 Analytical Chemistry not elsewhere classified
subject: FOS: Chemical sciences

description: The files contains some more experimental results to support the findings stated in the main manuscript.
Antisolar differential rotation with surface lithium enrichment on the single K-giant V1192 Orionis
Creators: name: Kővári, Zs.
name: Strassmeier, K. G.
name: Carroll, T. A.
name: Oláh, K.
name: Kriskovics, L.
name: Kővári, E.
name: Kovács, O.
name: Vida, K.
name: Granzer, T.
name: Weber, M.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context: Stars with about 1$-$2 solar masses at the red giant branch (RGB) represent an intriguing period of stellar evolution, i.e. when the convective envelope interacts with the fast-rotating core. During these mixing episodes freshly synthesized lithium can come up to the stellar surface along with high angular momentum material. This high angular momentum may alter the surface rotation pattern. Aims: The single rapidly rotating K-giant V1192 Ori is revisited to determine its surface differential rotation, lithium abundance, and basic stellar properties such as a precise rotation period. The aim is to independently verify the antisolar differential rotation of the star and possibly find a connection to the surface lithium abundance. Methods: We applied time-series Doppler imaging to a new multi-epoch data set. Altogether we reconstructed 11 Doppler images from spectroscopic data collected with the STELLA robotic telescope between 2007--2016. We used our inversion code iMap to reconstruct all stellar surface maps. We extracted the differential rotation from these images by tracing systematic spot migration as a function of stellar latitude from consecutive image cross-correlations. Results: The position of V1192 Ori in the Hertzsprung-Russell diagram suggests that the star is in the helium core-burning phase just leaving the RGB bump. We measure $A({\rm Li})_{\rm NLTE}=1.27$, i.e. a value close to the anticipated transition value of 1.5 from Li-normal to Li-rich giants. Doppler images reveal extended dark areas arranged quasi-evenly along an equatorial belt. No cool polar spot is found during the investigated epoch. Spot displacements clearly suggest antisolar surface differential rotation with $α=-0.11\pm0.02$ shear coefficient. Conclusions: The surface Li enrichment and the peculiar surface rotation pattern may indicate a common origin.
description: Accepted for publication in Astronomy and Astrophysics
Perturbative study for domain-wall fermions in 4+1 dimensions
Creators: name: Aoki, S.
name: Hirose, H.
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We investigate a U(1) chiral gauge model in 4+1 dimensions formulated on the lattice via the domain-wall method. We calculate an effective action for smooth background gauge fields at a fermion one loop level. From this calculation we discuss properties of the resulting 4 dimensional theory, such as gauge invariance of 2 point functions, gauge anomalies and an anomaly in the fermion number current.
description: 39 pages incl. 9 figures, REVTeX+epsf, uuencoded Z-compressed .tar file
Supplementary document for A Multi-Harmonic NIR-UV Dual-Comb Spectrometer - 6892630.pdf
Creators: name: Chang, Kristina
name: Lesko, Daniel
name: Mashburn, Carter
name: Chang, Peter
name: Tsao, Eugene
name: Lind, Alexander
name: Diddams, Scott
Publisher: name: Optica Publishing Group
Year: 2024
Subjects: Uncategorized

description: Supplement 1
Quantum graphs as holonomic constraints
Creators: name: Dell'Antonio, Gianfausto
name: Tenuta, Lucattilio
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We consider the dynamics on a quantum graph as the limit of the dynamics generated by a one-particle Hamiltonian in R^2 with a potential having a deep strict minimum on the graph, when the width of the well shrinks to zero. For a generic graph we prove convergence outside the vertices to the free dynamics on the edges. For a simple model of a graph with two edges and one vertex, we prove convergence of the dynamics to the one generated by the Laplacian with Dirichlet boundary conditions in the vertex.
description: 28 pages, 3 figures
Log-rise of the Resistivity in the Holographic Kondo Model
Creators: name: Padhi, Bikash
name: Tiwari, Apoorv
name: Setty, Chandan
name: Phillips, Philip W.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study a single-channel Kondo effect using a recently developed holographic large-$N$ technique. In order to obtain resistivity of this model, we introduce a probe field. The gravity dual of a localized fermionic impurity in 1+1-dimensional host matter is constructed by embedding a localized 2-dimensional Anti-de Sitter (\ads{2})-brane in the bulk of \ads{3}. This helps us construct an impurity charge density which acts as a source to the bulk equation of motion of the probe gauge field. The functional form of the charge density is obtained independently by solving the equations of motion for the fields confined to the \ads{2}-brane. The asymptotic solution of the probe field is dictated by the impurity charge density, which in turn, affects the current-current correlation functions, and hence the resistivity. Our choice of parameters tunes the near-boundary impurity current to be marginal, resulting in a $\log T$ behavior in the UV resistivity, as is expected for the Kondo problem. The resistivity at the IR fixed point turns out to be zero, signaling a complete screening of the impurity.
description: v2: 15 pages, typos corrected, few more clarifications added
A representation formula for maps on supermanifolds
Creators: name: Hélein, Frédéric
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 58A50; 53Z05; 14A10

description: In this paper we analyze the notion of morphisms of rings of superfunctions which is the basic concept underlying the definition of supermanifolds as ringed spaces (i.e. following Berezin, Leites, Manin, etc.). We establish a representation formula for all morphisms from the algebra of functions on an ordinary manifolds to the superalgebra of functions on an open subset of R^{p|q}. We then derive two consequences of this result. The first one is that we can integrate the data associated with a morphism in order to get a (non unique) map defined on an ordinary space (and uniqueness can achieved by restriction to a scheme). The second one is a simple and intuitive recipe to compute pull-back images of a function on a manifold by a map defined on a superspace.
description: 23 pages
Optimal Trade Execution Under Endogenous Pressure to Liquidate: Theory and Numerical Solutions
Creators: name: Brunovský, Pavol
name: Černý, Aleš
name: Komadel, Ján
Publisher: name: arXiv
Year: 2017
Subjects: subject: Portfolio Management (q-fin.PM)
subject: Optimization and Control (math.OC)
subject: Mathematical Finance (q-fin.MF)
subject: FOS: Economics and business
subject: FOS: Mathematics
subject: 34A12, 49J15, 91G80

description: We study optimal liquidation of a trading position (so-called block order or meta-order) in a market with a linear temporary price impact (Kyle, 1985). We endogenize the pressure to liquidate by introducing a downward drift in the unaffected asset price while simultaneously ruling out short sales. In this setting the liquidation time horizon becomes a stopping time determined endogenously, as part of the optimal strategy. We find that the optimal liquidation strategy is consistent with the square-root law which states that the average price impact per share is proportional to the square root of the size of the meta-order (Bershova and Rakhlin, 2013; Farmer et al., 2013; Donier et al., 2015; Tóth et al., 2016). Mathematically, the Hamilton-Jacobi-Bellman equation of our optimization leads to a severely singular and numerically unstable ordinary differential equation initial value problem. We provide careful analysis of related singular mixed boundary value problems and devise a numerically stable computation strategy by re-introducing time dimension into an otherwise time-homogeneous task.
Gauge-independent Renormalization of the N2HDM
Creators: name: Krause, Marcel
name: Lopez-Val, David
name: Muhlleitner, Margarete
name: Santos, Rui
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The Next-to-Minimal 2-Higgs-Doublet Model (N2HDM) is an interesting benchmark model for a Higgs sector consisting of two complex doublet and one real singlet fields. Like the Next-to-Minimal Supersymmetric extension (NMSSM) it features light Higgs bosons that could have escaped discovery due to their singlet admixture. Thereby, the model allows for various different Higgs-to-Higgs decay modes. Contrary to the NMSSM, however, the model is not subject to supersymmetric relations restraining its allowed parameter space and its phenomenology. For the correct determination of the allowed parameter space, the correct interpretation of the LHC Higgs data and the possible distinction of beyond-the-Standard Model Higgs sectors higher order corrections to the Higgs boson observables are crucial. This requires not only their computation but also the development of a suitable renormalization scheme. In this paper we have worked out the renormalization of the complete N2HDM and provide a scheme for the gauge-independent renormalization of the mixing angles. We discuss the renormalization of the $\mathbb{Z}_2$ soft breaking parameter $m_{12}^2$ and the singlet vacuum expectation value $v_S$. Both enter the Higgs self-couplings relevant for Higgs-to-Higgs decays. We apply our renormalization scheme to different sample processes such as Higgs decays into $Z$ bosons and decays into a lighter Higgs pair. Our results show that the corrections may be sizeable and have to be taken into account for reliable predictions.
Gravitational self-interactions of a degenerate quantum scalar field
Creators: name: Chakrabarty, Sankha S.
name: Enomoto, Seishi
name: Han, Yaqi
name: Sikivie, Pierre
name: Todarello, Elisa M.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We develop a formalism to help calculate in quantum field theory the departures from the description of a system by classical field equations. We apply the formalism to a homogeneous condensate with attractive contact interactions and to a homogeneous self-gravitating condensate in critical expansion. In their classical descriptions, such condensates persist forever. We show that in their quantum description, parametric resonance causes quanta to jump in pairs out of the condensate into all modes with wavector less than some critical value. We calculate in each case the time scale over which the homogeneous condensate is depleted, and after which a classical description is invalid. We argue that the duration of classicality of inhomogeneous condensates is shorter than that of homogeneous condensates.
description: 39 pages, 3 figures. A more detailed discussion of the duration of classicality is given, correcting relatively inconsequential errors/misunderstandings in the original version of this paper
Microscopic mechanism of tunable band gap in potassium doped few-layer black phosphorus
Creators: name: Kim, Sun-Woo
name: Jung, Hyun
name: Kim, Hyun-Jung
name: Choi, Jin-Ho
name: Wei, Su-Huai
name: Cho, Jun-Hyung
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Tuning band gaps in two-dimensional (2D) materials is of great interest in the fundamental and practical aspects of contemporary material sciences. Recently, black phosphorus (BP) consisting of stacked layers of phosphorene was experimentally observed to show a widely tunable band gap by means of the deposition of potassium (K) atoms on the surface, thereby allowing great flexibility in design and optimization of electronic and optoelectronic devices. Here, based on the density-functional theory calculations, we demonstrates that the donated electrons from K dopants are mostly localized at the topmost BP layer and such a surface charging efficiently screens the K ion potential. It is found that, as the K doping increases, the extreme surface charging and its screening of K atoms shift the conduction bands down in energy, i.e., towards higher binding energy, because they have more charge near the surface, while it has little influence on the valence bands having more charge in the deeper layers. This result provides a different explanation for the observed tunable band gap compared to the previously proposed giant Stark effect where a vertical electric field from the positively ionized K overlayer to the negatively charged BP layers shifts the conduction band minimum $Γ_{\rm 1c}$ (valence band minimum $Γ_{\rm 8v}$) downwards (upwards). The present prediction of $Γ_{\rm 1c}$ and $Γ_{\rm 8v}$ as a function of the K doping reproduces well the widely tunable band gap, anisotropic Dirac semimetal state, and band-inverted semimetal state, as observed by angle-resolved photoemission spectroscopy experiment. Our findings shed new light on a route for tunable band gap engineering of 2D materials through the surface doping of alkali metals.
description: 7 pages, 5 figures
Translated article: Exposure or Stabilization: How Do Behavioral Therapists Plan the Outpatient Treatment of Patients with Post-Traumatic Stress Disorder?
Creators: name: Equit, Monika
name: Maurer, Stefanie
name: Michael, Tanja
name: Köllner, Volker
Publisher: name: Karger Publishers
Year: 2018
Subjects: Medicine

description: Background: According to national and international guidelines,trauma-focused treatments such as trauma-focused cognitive-behavioral therapies or eye movement desensitizationand reprocessing (EMDR) are first-choice methods in the treatmentof patients with post-traumatic stress disorder (PTSD).Meta-analyses consistently show highest effect sizes for thesetreatments. This results in clear implications for the treatmentof patients with PTSD. The present study aimed to assess theimplementation of a psychological treatment of PTSD patientsaccording to the therapy guidelines. Reports to the evaluatorfor the German health-care system in the process of applicationfor outpatient psychotherapy are analyzed. Patients andMethods: 1,053 reports were analyzed. Finally, 167 reportsmentioning a traumatic event, the diagnosis of a PTSD, or atrauma-focused treatment were included in the study. Results:74.3% of the treatment plans were rated as conforming to theguidelines (i.e., trauma-focused exposure for patients withPTSD diagnosis and no trauma-focused exposure for patientswithout PTSD diagnosis). In 70.3% of the reports to the evaluatorfor patients with PTSD, trauma-focused exposure was described.There were no indications that the diagnosis of a PTSDwas applied too often by established therapists. The overall validityof the diagnoses was high. Conclusion: For approximately30% of the patients with PTSD, outpatient psychotherapistsdid not mention trauma-focused exposure therapy in their reports,i.e. the treatment with the highest clinical evidence wasnot used. Further studies should be made to clarify the reasonsfor this.
Planetary Nebula Velocities in the Disk and Bulge of M31
Creators: name: Halliday, C.
name: Carter, D.
name: Bridges, T. J.
name: Jackson, Z. C.
name: Wilkinson, M. I.
name: Quinn, D. P.
name: Evans, N. W.
name: Douglas, N. G.
name: Merrett, H. R.
name: Merrifield, M. R.
name: Romanowsky, A. J.
name: Kuijken, K.
name: Irwin, M. J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present radial velocities for a sample of 723 planetary nebulae (PNe) in the disk and bulge of M31, measured using the WYFFOS fibre spectrograph on the William Herschel telescope. Velocities are determined using the [OIII] 5007 Angstrom emission line. Rotation and velocity dispersion are measured to a radius of 50 arcminutes (11.5 kpc), the first stellar rotation curve and velocity dispersion profile for M31 to such a radius. Our kinematics are consistent with rotational support at radii well beyond the bulge effective radius of 1.4kpc, although our data beyond a radius of 5kpc are limited. We present tentative evidence for kinematic substructure in the bulge of M31 to be studied fully in a later work. This paper is part of an ongoing project to constrain the total mass, mass distribution and velocity anisotropy of the disk, bulge and halo of M31.
description: 27 pages, accepted for publication in MNRAS
MPEC 2024-F40 : 2024 FA1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 FA1

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
The Coupled Cluster Method in Hamiltonian Lattice Field Theory
Creators: name: Schütte, D.
name: Weihong, Zheng
name: Hamer, C. J.
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: The coupled cluster or exp S form of the eigenvalue problem for lattice Hamiltonian QCD (without quarks) is investigated. A new construction prescription is given for the calculation of the relevant coupled cluster matrix elements with respect to an orthogonal and independent loop space basis. The method avoids the explicit introduction of gauge group coupling coefficients by mapping the eigenvalue problem onto a suitable set of character functions, which allows a simplified procedure. Using appropriate group theoretical methods, we show that it is possible to set up the eigenvalue problem for eigenstates having arbitrary lattice momentum and lattice angular momentum.
description: LaTeX, no figure
Additional file 4 of An updated tribal classification of Lamiaceae based on plastome phylogenomics
Creators: name: Zhao, Fei
name: Chen, Ya-Ping
name: Salmaki, Yasaman
name: Drew, Bryan T.
name: Wilson, Trevor C.
name: Scheen, Anne-Cathrine
name: Celep, Ferhat
name: Bräuchler, Christian
name: Bendiksby, Mika
name: Wang, Qiang
name: Min, Dao-Zhang
name: Peng, Hua
name: Olmstead, Richard G.
name: Li, Bo
name: Xiang, Chun-Lei
Publisher: name: figshare
Year: 2021
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences

description: Additional file 4: Figure S2. Phylograms inferred from ML analysis of concatenated nucleotide sequences of 79 protein-coding genes (dataset CR). A, phylogram showing branch lengths, where tips names are absent follow the same order as shown in B. Scale bar represents the mean number of nucleotide substitutions per site. B, maximum likelihood bootstrap support values and Bayesian inference posterior probabilities are shown above and below the branches, respectively.
Density-dependent hopping for ultracold atoms immersed in a Bose-Einstein-condensate vortex lattice
Creators: name: Chaviguri, R. H.
name: Comparin, T.
name: Di Liberto, M.
name: Caracanhas, M. A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Both mixtures of atomic Bose-Einstein condensates and systems with atoms trapped in optical lattices have been intensely explored theoretically, mainly due to the exceptional developments on the experimental side. We investigate the properties of ultracold atomic impurities (bosons) immersed in a vortex lattice of a second Bose-condensed species. In contrast to the static optical-lattice configuration, the vortex lattice presents intrinsic dynamics given by its Tkachenko modes. These excitations induce additional correlations between the impurities, which consist in a long-range attractive potential and in a density-dependent hopping, described here in the framework of an extended Bose-Hubbard model. We compute the quantum phase diagram of the impurity species through a Gutzwiller ansatz and through the mean-field approach, and separately identify the effects of the two additional terms, i.e., the shift and the deformation of the Mott insulator lobes. The long-range attraction, in particular, induces the existence of a triple point in the phase diagram, in agreement with previous quantum Monte Carlo calculations [Chaviguri \emph{et al.}, Phys. Rev. A \textbf{95}, 053639 (2017)].
description: 8 pages, 4 figures
Translated article: HCU-Q: Development of a Questionnaire Assessing Health Care Utilization
Creators: name: Weiss, Frauke Dorothee
name: Mewes, Ricarda
name: Rief, Winfried
name: Kleinstäuber, Maria
Publisher: name: Karger Publishers
Year: 2018
Subjects: Medicine

description: Background: Health care utilization induces costs forhealth care systems. Its assessment is essential forthe health-economic evaluation of therapies. The mostcommonlyused method of data collection – via questionnaires– is not conducted systematically. This studyaimed to develop and evaluate a self-report instrumentfor assessing health care utilization. Patients andMethods:The accuracy of questionnaire-derived dataon health care utilization compared to interview-deriveddata was analyzed in a general population sample ofN = 252 with elevated bother by somatoform symptomsaccording to the Patient Health Questionnaire-15 (Study1). The discrimination of the questionnaire betweengroups with different somatization scores was examinedin N = 254 patients with somatoform disorders (Study 2).Results: Agreement between questionnaire and interviewwas excellent (intraclass correlation coefficient≥ 0.75) (Study 1). Patients with high somatization scoreshad a significantly higher number of outpatient visitsthan patients with mild somatization (Study 2). A modifiedversion of the Health Care Utilization-Questionnaire(HCU-Q) was established. Discussion: High agreementbetween questionnaire and interview and a good differentiationbetween groups with different somatizationscores indicate the practicability of the HCU-Q. Conclusions:The HCU-Q allows a systematic assessmentof health care utilization. Further evaluation of the finalversion of the HCU-Q is needed.
Interactions, Mergers and the Fundamental Mass Relations of Galaxies
Creators: name: Tissera, Patricia B.
name: Castelli, Analia Smith
name: Scannapieco, Cecilia
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a study of the effects of mergers and interactions on the mass distribution of galactic systems in hierarchical clustering scenarios using the disc-bulge structural parameters and their dynamical properties to quantify them. We focus on the analysis of the Fundamental Mass Plane relation, finding that secular evolution phases contribute significantly to the determination of a plane with a slope in agreement to that of the observed luminosity relation. In these simulations, secular phases are responsible for the formation of compact stellar bulges with the correct structural parameter combination. We also test that the relations among these parameters agree with observations. Taking into account these results, the hierarchical growth of the structure predicts a bulge formation scenario for typical field spiral galaxies where secular evolution during dissipate mergers plays a fundamental role. Conversely, subsequent mergers can help to enlarge the bulges but do not seem to strongly modify their fundamental mass relations. Systems get to the local mass relations at different stages of evolution (i.e. different redshifts) so that their formation histories introduce a natural scatter in the relations. Our results suggest that the formation mechanisms of the bulge and disc components, satisfying their corresponding fundamental mass relations, might be coupled and that secular evolution could be the possible connecting process.
description: 11 pages, 7 figures, accepted for publication in A&A. Replaced by edited version
MPEC 2024-F41 : 2024 FB1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 FB1

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Condensation in a Disordered Infinite-Range Hopping Bose-Hubbard Model
Creators: name: Dorlas, T. C.
name: Pastur, L. A.
name: Zagrebnov, V. A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 82B10; 82B26

description: We study Bose-Einstein Condensation (BEC) in the Infinite-Range Hopping Bose-Hubbard model for repulsive on-site particle interaction in presence of ergodic random one-site potentials with different distributions. We show that the model is exactly soluble even if the on-site interaction is random. But in contrast to the non-random case, we observe here new phenomena: instead of enhancement of BEC for perfect bosons, for constant on-site repulsion and discrete distributions of the single-site potential there is suppression of BEC at some fractional densities. We show that this suppression appears with increasing disorder. On the other hand, the BEC suppression at integer densities may disappear, if disorder increases. For a continuous distribution we prove that the BEC critical temperature decreases for small on-site repulsion while the BEC is suppressed at integer values of density for large repulsion. Again, the threshold for this repulsion gets higher, when disorder increases.
Right-handed Neutrino Dark Matter in a U(1) Extension of the Standard Model
Creators: name: Cox, Peter
name: Han, Chengcheng
name: Yanagida, Tsutomu T.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider minimal $U(1)$ extensions of the Standard Model in which one of the right-handed neutrinos is charged under the new gauge symmetry and plays the role of dark matter. In particular, we perform a detailed phenomenological study for the case of a $U(1)_{(B-L)_3}$ flavoured $B-L$ symmetry. If perturbativity is required up to high-scales, we find an upper bound on the dark matter mass of $m_χ\lesssim2$ TeV, significantly stronger than that obtained in simplified models. Furthermore, if the $U(1)_{(B-L)_3}$ breaking scalar has significant mixing with the SM Higgs, there are already strong constraints from direct detection. On the other hand, there remains significant viable parameter space in the case of small mixing, which may be probed in the future via LHC $Z^\prime$ searches and indirect detection. We also comment on more general anomaly-free symmetries consistent with a TeV-scale RH neutrino dark matter candidate, and show that if two heavy RH neutrinos for leptogenesis are also required, one is naturally led to a single-parameter class of $U(1)$ symmetries.
description: 10 two-column pages, 2 figures; v2: version published in JCAP