cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Density-functional theory calculations of hopping rates of surface diffusion
Creators: name: Ratsch, C.
name: Scheffler, M.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: Using density-functional theory we compute the energy barriers and attempt frequencies for surface diffusion of Ag on Ag(111) with different lattice constants, and on an Ag adsorbate monolayer on Pt(111). We find that the attempt frequency is of the order of 1 THz for all the systems studied. This is in contrast to the so-called compensation effect, and to recent experimental studies. Our analysis suggests that the applicability of simple (commonly used) scaling laws for the determination of diffusion and growth parameters is often not valid.
description: 4 pages, 1 figures, to be published in Phys. Rev. B (Nov. 15, 1998). Other related publications can be found at http://www.fhi-berlin.mpg.de/th/paper.html
Disorder from Disorder in a Strongly Frustrated Transverse Field Ising Chain
Creators: name: Priour, D. J.
name: Gelfand, M. P.
name: Sondhi, S. L.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study a one-dimensional chain of corner-sharing triangles with antiferromagnetic Ising interactions along its bonds. Classically, this system is highly frustrated with an extensive entropy at T = 0 and exponentially decaying spin correlations. We show that the introduction of a quantum dynmamics via a transverse magnetic field removes the entropy and opens a gap, but leaves the ground state disordered at all values of the transverse field, thereby providing an analog of the "disorder by disorder" scenario first proposed by Anderson and Fazekas in their search for resonating valence bond states. Our conclusion relies on exact diagonalization calculations as well as on the analysis of a 14th order series expansion about the large transverse field limit. This test suggests that the series method could be used to search for other instances of quantum disordered states in frustrated transverse field magnets in higher dimensions.
description: 8 pages, RevTex, 7 Figures
Additional file 3: of An intergenerational program based on psycho-motor activity promotes well-being and interaction between preschool children and older adults: results of a process and outcome evaluation study in Austria
Creators: name: Mosor, Erika
name: Waldherr, Karin
name: Kjeken, Ingvild
name: Omara, Maisa
name: Ritschl, Valentin
name: Pinter-Theiss, Veronika
name: Smolen, Josef
name: HĂźbel, Ursula
name: Stamm, Tanja
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Computational Biology

description: Interview questions for the pilot and the rollout phases. (DOCX 16 kb)
Soft X-ray AGN Luminosity Function from ROSAT Surveys II. Table of the binned Soft X-ray Luminosity Function
Creators: name: Miyaji, Takamitsu
name: Hasinger, Guenther
name: Schmidt, Maarten
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This is the second paper of our investigation of the 0.5-2 keV soft X-ray luminosity function (SXLF) of active galactic nuclei (AGN) using results from ROSAT surveys of various depth. The large dynamic range of the combined sample, from shallow large-area ROSAT All-Sky Survey (RASS)-based samples to the satellite's deepest pointed observation on the Lockman Hole, enabled us to trace the behavior of the SXLF. While the first paper (Miyaji, Hasinger, Schmidt 2000, hereafter paper I) emphasized the global behavior of the SXLF, cosmological evolution and contribution to the soft X-ray background, this paper presents actual numerical values for practical use of our results. To present the binned SXLF, we have used an improved estimator, which is free from biases associated with the conventional 1/Va estimator.
description: 8 pages, 2 figures, 6 ASCII Tables with a ReadMe file. To appear in A&A. Replaced for an insignificant minor fix
Microbial and chemical transformations of euphorbia factor L1 and the P-glycoprotein inhibitory activity in zebrafishes
Creators: name: Liu, Xin
name: Cheng, Zhihong
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Developmental Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology

description: Euphorbia factor L1 (EFL1, 1) is a natural tri-ester of 6,17-epoxylathyrol with cancer multidrug resistance (MDR) reversal activity. Several EFL1 derivatives (2–9) were prepared by chemical and microbial transformations and their ability to inhibit P-glycoprotein (P-gp) activity was estimated. Six de-acylated derivatives (2–7) were obtained through base-hydrolysis of 1, and the base-catalysed hydrolysis via KOH and NaOH yielded different hydrolysed products of 1. Two biotransformed products (8–9) were directly obtained via microbial transformation of 1, and 8 was also formed by microbial conversion of the hydrolysed product 3. The P-gp modulation of 1–9 was assessed by a zebrafish model. The substrate 1 and its biotransformed product 9 as the tri-esters of lathyranes possessed the highest P-gp inhibitory activity with IC50 values of 34.97 and 15.50 µM, respectively, through down-regulating P-gp expression at the protein level rather than at MDR1 mRNA level.
Teleotanais Lang 1956
Creators: name: Larsen, Kim
name: Sahoo, Gobardhan
name: Ansari, Zakir Ali
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Tanaidacea
Teleotanaidae
Teleotanais

description: Genus Teleotanais Lang, 1956
 Revised diagnosis. Female. With mottled dorsal pigmentation. Eye lobes and pigmented eyes present. First four pleonites each bearing pair of articulated, plumose midlateral setae, last pleonite bearing pair of simple midlateral setae. Antenna articles 2 and 3 without dorsodistal spiniform setae, article 3 with proximal, medial, and distal dorsal setae. Maxillule with palp bearing one or two distal setae. Maxillipedal endite not expanded, distally armed with single seta and two or three fine, pointed spine. Fixed finger of cheliped with raised inner ridge. Carpus of pereopods 2–3 without spiniform setae. Posterior pereopods with distal spiniform seta on merus, carpus, and propodus; dactylus plus unguis claw-shaped but these elements unfused. Basal articles of pleopods with single dorsal plumose seta. Uropods shorter than pleotelson; exopod with two articles, endopod with one or two articles.
 We believe that the presence of a maxillular palp with only one seta in T. warragamba, as recorded by Bamber (2008), is likely to be an artefact as it would otherwise be unique in the Tanaidacea.
 Species included: Teleotanais gerlachi Lang, 1956 (type species), T. indiaensis sp. nov., T. warragamba Bamber, 2008.
description: Published as part of Larsen, Kim, Sahoo, Gobardhan & Ansari, Zakir Ali, 2013, Description of a New Mangrove Root Dwelling Species of Teleotanais (Crustacea: Peracarida: Tanaidacea) from India, with a Key to Teleotanaidae, pp. 237-243 in Species Diversity 18 on pages 237-238, DOI: 10.12782/sd.18.2.237, http://zenodo.org/record/5737303
Inferring nonequilibrium thermodynamics from tilted equilibrium using information-geometric Legendre transform
Creators: name: Ohga, Naruo
name: Ito, Sosuke
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Nonstationary thermodynamic quantities depend on the full details of nonstationary probability distributions, making them difficult to measure directly in experiments and numerics. We propose a method to infer thermodynamic quantities in relaxation processes by measuring only a few observables, using additional information obtained from measurements in tilted equilibrium, i.e., equilibrium with external fields applied. Our method is applicable to arbitrary classical stochastic systems, possibly underdamped, that relax to equilibrium. The method allows us to compute the exact value of the minimum entropy production (EP) compatible with the nonstationary observations, giving a tight lower bound on the true EP. Under a certain additional condition, it also allows the inference of the EP rate, thermodynamic forces, and a constraint on relaxation paths. Our method uses a Legendre transform of EP at the level of probability distributions, which we develop based on a similar Legendre transform in information geometry.
description: 16 pages, 4 figures. This is the published version, with only minor updates from v4. This article has been fully revised with a new title in v3. The previous version is available in v2
Splitting fields of differential symbol algebras
Creators: name: Gupta, Parul
name: Kaur, Yashpreet
name: Singh, Anupam
Publisher: name: arXiv
Year: 2022
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 12H05, 16H05, 16W25

description: For $m\geq 2$, we study derivations on symbol algebras of degree $m$ over fields with characteristic not dividing $m$. A differential central simple algebra over a field $k$ is split by a finitely generated extension of $k$. For certain derivations on symbol algebras, we provide explicit construction of differential splitting fields and give bounds on their algebraic and transcendence degrees. We further analyze maximal subfields that split certain differential symbol algebras.
The beta function of the multichannel Kondo model
Creators: name: Fischer, Kurt
Publisher: name: arXiv
Year: 1998
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The beta function of the multichannel Kondo model is calculated exactly in the limit of large spin N and channel number M=gamma*N, with constant gamma. There are no corrections in any finite order of 1/N. One zero is found at a finite coupling strength, showing directly the Non--Fermi liquid behavior of the model. This renormalization group flow allows to introduce a variational principle for the entropy, to obtain the low temperature thermodynamics. Such in particular the low temperature thermodynamics of the non--crossing approximation to the Kondo model becomes accessible.
description: 4 pages
Additional file 1: of Evaluation of clinical efficacy of silver-needle warm acupuncture in treating adults with acute low back pain due to lumbosacral disc herniation: study protocol for a randomized controlled trial
Creators: name: Li, Tian
name: Wang, Siyao
name: Zhang, Shen
name: Shen, Xueyong
name: Song, Yanwen
name: Yang, Zhen
name: Huang, Zouqin
Publisher: name: figshare
Year: 2019
Subjects: Biochemistry
Cell Biology
Developmental Biology
Science Policy

description: SPIRIT checklist. (DOC 122 kb)
Nonuniform superconductivity and Josephson effect in conical ferromagnet
Creators: name: Meng, Hao
name: Samokhvalov, A. V.
name: Buzdin, A. I.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Using the Gorkov equations, we provide an exact solution for a one-dimensional model of superconductivity in the presence of a conical helicoidal exchange field. Due to the special type of symmetry of the system, the superconducting transition always occurs into a nonuniform superconducting phase (in contrast with the Fulde-Ferrell-Larkin-Ovchinnikov state, which appears only at low temperatures). We directly demonstrate that the uniform superconducting state in our model carries a current and thus does not correspond to the ground state. We study in the framework of the Bogoliubov-de Gennes approach the properties of the Josephson junction with a conical ferromagnet as a weak link. In our numerical calculations, we do not use any approximations (such as, e.g., a quasiclassical approach), and we show a realization of an anomalous $ϕ_{0}$ junction (with a spontaneous phase difference $ϕ_{0}$ in the ground state). The spontaneous phase difference $ϕ_{0}$ strongly increases at high values of the exchange field near the borderline with a half-metal, and it exists also in the half-metal regime.
description: published version
Teleotanais Lang 1956
Creators: name: Larsen, Kim
name: Sahoo, Gobardhan
name: Ansari, Zakir Ali
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Tanaidacea
Teleotanaidae
Teleotanais

description: Key to the genus Teleotanais
 1. Maxillipedal endites with two pointed spiniform setae. Uropodal endopod uniarticulate. Pleopodal endopod with two inner setae.............. T. warragamba (Australia)
– Maxillipedal endites with three pointed spiniform setae. Pleopodal endopod with one inner seta. Uropodal endopod biarticulate................................................... 2
 2. Cephalothorax shorter than pereonites 1–3 combined. Cheliped fixed finger with two ventral, one ventro-subdistal, and four inner setae............... T. indiaensis (India)
 – Cephalothorax as long as pereonites 1–3 combined. Cheliped fixed finger with one ventral, one ventro-subdistal, and three inner setae................ T. gerlachi (Brazil)
description: Published as part of Larsen, Kim, Sahoo, Gobardhan & Ansari, Zakir Ali, 2013, Description of a New Mangrove Root Dwelling Species of Teleotanais (Crustacea: Peracarida: Tanaidacea) from India, with a Key to Teleotanaidae, pp. 237-243 in Species Diversity 18 on page 242, DOI: 10.12782/sd.18.2.237, http://zenodo.org/record/5737303
Additional file 16: of Genome-wide association analysis of nutrient traits in the oyster Crassostrea gigas: genetic effect and interaction network
Creators: name: Meng, Jie
name: Song, Kai
name: Li, Chunyan
name: Liu, Sheng
name: Shi, Ruihui
name: Li, Busu
name: Wang, Ting
name: Li, Ao
name: Que, Huayong
name: Li, Li
name: Zhang, Guofan
Publisher: name: figshare
Year: 2019
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy
subject: Plasma Physics
subject: Hematology
subject: Virology

description: Figure S7 Pairwise LD analysis of the 100 kb-region on both sides of the leading SNP of amino acids. The upper panel shows the GWAS results of the 100 kb-region on both sides of the leading SNP of the trait, whereas, the panel below shows the pairwise LD analysis of the SNPs (P < 2 × 10− 4) included in the region. (DOCX 2658 kb)
Discovery of a young subfamily of the (221)~Eos asteroid family
Creators: name: Tsirvoulis, Georgios
Publisher: name: arXiv
Year: 2018
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: In this work we report the discovery of a young cluster of asteroids that originated by the breakup of an asteroid member of the (221)Eos family. By applying the Hierarchical clustering method to the catalog of proper elements we have identified 26 members of this new small group of asteroids. We have established that the statistical significance of this cluster is $>99\%$, therefore it corresponds to a real asteroid family, named the (633)Zelima cluster, after its lowest numbered member. The orbits of its members are dynamically stable, a fact that enabled us to use the backward integration method, in two variants to identify potential interlopers and estimate its age. Applying it first on the orbits of the nominal family members we identified three asteroids as interlopers. Then we applied it on a set of statistically equivalent clones of each member to determine the age of the cluster, with a result of $2.9\pm0.2$Myrs.
Dynamic mode decomposition as an analysis tool for time-dependent partial differential equations
Creators: name: Rot, Miha
name: Horvat, Martin
name: Kosec, Gregor
Publisher: name: arXiv
Year: 2022
Subjects: subject: Numerical Analysis (math.NA)
subject: Dynamical Systems (math.DS)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: The time-dependent fields obtained by solving partial differential equations in two and more dimensions quickly overwhelm the analytical capabilities of the human brain. A meaningful insight into the temporal behaviour can be obtained by using scalar reductions, which, however, come with a loss of spatial detail. Dynamic Mode Decomposition is a data-driven analysis method that solves this problem by identifying oscillating spatial structures and their corresponding frequencies. This paper presents the algorithm and provides a physical interpretation of the results by applying the decomposition method to a series of increasingly complex examples.
description: 6 pages, 8 figures
Parabolic optimal control problems with combinatorial switching constraints -- Part I: Convex relaxations
Creators: name: Buchheim, Christoph
name: Grütering, Alexandra
name: Meyer, Christian
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: We consider optimal control problems for partial differential equations where the controls take binary values but vary over the time horizon, they can thus be seen as dynamic switches. The switching patterns may be subject to combinatorial constraints such as, e.g., an upper bound on the total number of switchings or a lower bound on the time between two switchings. While such combinatorial constraints are often seen as an additional complication that is treated in a heuristic postprocessing, the core of our approach is to investigate the convex hull of all feasible switching patterns in order to define a tight convex relaxation of the control problem. The convex relaxation is built by cutting planes derived from finite-dimensional projections, which can be studied by means of polyhedral combinatorics. A numerical example for the case of a bounded number of switchings shows that our approach can significantly improve the dual bounds given by the straightforward continuous relaxation, which is obtained by relaxing binarity constraints.
A replica approach to the state-dependent synapses neural network
Creators: name: Bollé, D.
name: Shim, G. M.
name: Van Mol, B.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Quantitative Biology (q-bio)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: The replica method is applied to a neural network model with state-dependent synapses built from those patterns having a correlation with the state of the system greater than a certain threshold. Replica-symmetric and first-step replica-symmetry-breaking results are presented for the storage capacity at zero temperature as a function of this threshold value. A comparison is made with existing results based upon mean-field equations obtained by using a statistical method.
description: 9 pages, including 2 figures
The atmospheric circulation and climate of terrestrial planets orbiting Sun-like and M-dwarf stars over a broad range of planetary parameters
Creators: name: Komacek, Thaddeus D.
name: Abbot, Dorian S.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The recent detections of temperate terrestrial planets orbiting nearby stars and the promise of characterizing their atmospheres motivates a need to understand how the diversity of possible planetary parameters affects the climate of terrestrial planets. In this work, we investigate the atmospheric circulation and climate of terrestrial exoplanets orbiting both Sun-like and M-dwarf stars over a wide swath of possible planetary parameters, including the planetary rotation period, surface pressure, incident stellar flux, surface gravity, planetary radius, and cloud particle size. We do so using a general circulation model (GCM) that includes non-grey radiative transfer and the effects of clouds. The results from this suite of simulations generally show qualitatively similar dependencies of circulation and climate on planetary parameters as idealized GCMs, with quantitative differences due to the inclusion of additional model physics. Notably, we find that the effective cloud particle size is a key unknown parameter that can greatly affect the climate of terrestrial exoplanets. We confirm a transition between low and high dayside cloud coverage of synchronously rotating terrestrial planets with increasing rotation period. We determine that this cloud transition is due to eddy-driven convergence near the substellar point and should not be parameterization-dependent. Finally, we compute full-phase light curves from our simulations of planets orbiting M-dwarf stars, finding that changing incident stellar flux and rotation period affect observable properties of terrestrial exoplanets. Our GCM results can guide expectations for planetary climate over the broad range of possible terrestrial exoplanets that will be observed with future space telescopes.
description: 21 pages, 19 figures, 5 tables. Updated to reflect published version
On sets related to integer partitions with quasi-required elements and disallowed elements
Creators: name: Robles-Pérez, Aureliano M.
name: Rosales, José Carlos
Publisher: name: arXiv
Year: 2022
Subjects: subject: Number Theory (math.NT)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05A17, 11P81, 20M14

description: Given a set A of non-negative integers and a set B of positive integers,we are interested in computing all sets C (of positive integers) that are minimal in the family of sets K (of positive integers) such that (i) K contains no elements generated by non-negative integer linear combinations of elements in A and (ii) for any partition of an element in B there is at least one summand that belongs to K. To solve this question, we translate it into a numerical semigroups problem.
description: 17 pages; typos corrected
Lightweight Feature Fusion Network for Single Image Super-Resolution
Creators: name: Yang, Wenming
name: Wang, Wei
name: Zhang, Xuechen
name: Sun, Shuifa
name: Liao, Qingmin
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Single image super-resolution(SISR) has witnessed great progress as convolutional neural network(CNN) gets deeper and wider. However, enormous parameters hinder its application to real world problems. In this letter, We propose a lightweight feature fusion network (LFFN) that can fully explore multi-scale contextual information and greatly reduce network parameters while maximizing SISR results. LFFN is built on spindle blocks and a softmax feature fusion module (SFFM). Specifically, a spindle block is composed of a dimension extension unit, a feature exploration unit and a feature refinement unit. The dimension extension layer expands low dimension to high dimension and implicitly learns the feature maps which is suitable for the next unit. The feature exploration unit performs linear and nonlinear feature exploration aimed at different feature maps. The feature refinement layer is used to fuse and refine features. SFFM fuses the features from different modules in a self-adaptive learning manner with softmax function, making full use of hierarchical information with a small amount of parameter cost. Both qualitative and quantitative experiments on benchmark datasets show that LFFN achieves favorable performance against state-of-the-art methods with similar parameters.
description: Accepted by IEEE Signal Processing Letters (Volume:26, Issue:4, April 2019)
SUSY and the bi-vector
Creators: name: Orlando, Domenico
name: Reffert, Susanne
name: Sekiguchi, Yuta
name: Yoshida, Kentaroh
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this note we give an explicit formula for the preserved Killing spinors in deformed string theory backgrounds corresponding to integrable Yang--Baxter deformations realized via (sequences of) TsT transformations. The Killing spinors can be expressed only in terms of the bi-vector $Θ$ which encodes the deformation. This formula is applicable to deformed backgrounds related to $r$-matrices of various ranks, including those that do not satisfy the unimodularity condition and give rise to backgrounds in generalized supergravity. We conjecture that our formula also remains valid for integrable deformations which are not realized via TsT transformations and motivate this conjecture by explicit examples.
description: 20 pages
The X-Ray Structure of the Supernova Remnant 3C 400.2
Creators: name: Yoshita, Kumi
name: Tsunemi, Hiroshi
name: Miyata, Emi
name: Mori, Koji
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present here the results of an X-ray study of the supernova remnant 3C 400.2 (G53.6-2.2) using the ASCA data. 3C 400.2 has an unusual morphology at radio wavelengths, suggesting two SNRs superposed along the same line of sight, whereas its X-ray emission is known to be centrally peaked. We investigated the X-ray spectral variation across the remnant using the ASCA GIS and the ROSAT PSPC data. The X-ray spectra can be well fitted by thin thermal plasma models. However, there is no significant variation in the temperature and the ionization parameter across the remnant. We conclude that it is a single SNR rather than two overlapping SNRs. The centrally peaked X-ray morphology and the thin thermal emission with nearly cosmic abundances indicate that 3C 400.2 belongs to a class of ``mixed-morphology SNRs''. We found that the physical parameters of 3C 400.2 are similar to those of other mixed-morphology SNRs. The morphology of 3C 400.2 can be explained by a supernova explosion occurring near to the edge of an interstellar cloud.
description: 8 pages, 4 figures, to appear in PASJ vol. 53
A matrix for counting paths in acyclic colored digraphs
Creators: name: Bera, Sudip
Publisher: name: arXiv
Year: 2022
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05A19, 05A05, 05C30, 05C38

description: In this paper, we introduce a matrix $A_{Γ_{k, R}}$ associate with a $k$-colored acyclic digraph $Γ_{k, R}$ such that $\text{det}(A_{Γ_{k, R}})$ enumerates the paths in the digraph $Γ_{k, R}.$
description: 11 pages, 3 figures. Accepted manuscript for publication in Graphs and Combinatorics
Two-level System coupled to Phonons: Full Analytical Solution
Creators: name: Chenu, Aurélia
name: Shiau, Shiue-Yuan
name: Combescot, Monique
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose an analytical procedure to fully solve a two-level system coupled to phonons. Instead of using the common formulation in terms of linear and quadratic system-phonon couplings, we introduce different phonons depending on the system electronic level. We use this approach to recover known results for the linear-coupling limit in a simple way. More importantly, we derive results for the quadratic coupling induced by a phonon frequency change, a problem considered up to now as not analytically solvable.
description: 5 pp
Additional file 2: of An intergenerational program based on psycho-motor activity promotes well-being and interaction between preschool children and older adults: results of a process and outcome evaluation study in Austria
Creators: name: Mosor, Erika
name: Waldherr, Karin
name: Kjeken, Ingvild
name: Omara, Maisa
name: Ritschl, Valentin
name: Pinter-Theiss, Veronika
name: Smolen, Josef
name: HĂźbel, Ursula
name: Stamm, Tanja
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Interview questions for the needs assessment. (DOCX 14 kb)
Bose-Einstein statistics in thermalization and photoluminescence of quantum well excitons
Creators: name: Ivanov, A. L.
name: Littlewood, P. B.
name: Haug, H.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Quasi-equilibrium relaxational thermodynamics is developed to understand LA-phonon-assisted thermalization of Bose-Einstein distributed excitons in quantum wells. We study the quantum-statistical effects in the relaxational dynamics of the effective temperature of excitons $T = T(t)$. When $T$ is less than the degeneracy temperature $T_0$, well-developed Bose-Einstein statistics of quantum well excitons leads to nonexponential and density-dependent thermalization. At low bath temperatures $T_b \to 0$ the thermalization of quantum-statistically degenerate excitons effectively slows down and $T(t) \propto 1 / \ln t$. We also analyze the optical decay of Bose-Einstein distributed excitons in perfect quantum wells and show how nonclassical statistics influences the effective lifetime $τ_{opt}$. In particular, $τ_{opt}$ of a strongly degenerate gas of excitons is given by $2 τ_R$, where $τ_R$ is the intrinsic radiative lifetime of quasi-two-dimensional excitons. Kinetics of resonant photoluminescence of quantum well excitons during their thermalization is studied within the thermodynamic approach and taking into account Bose-Einstein statistics. We find density-dependent photoluminescence dynamics of statistically degenerate excitons. Numerical modeling of the thermalization and photoluminescence kinetics of quasi-two-dimensional excitons are given for GaAs/AlGaAs quantum wells.
description: 19 pages, 9 figures. Phys. Rev. B (accepted for publication)
Parabolic optimal control problems with combinatorial switching constraints -- Part II: Outer approximation algorithm
Creators: name: Buchheim, Christoph
name: Grütering, Alexandra
name: Meyer, Christian
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: We consider optimal control problems for partial differential equations where the controls take binary values but vary over the time horizon, they can thus be seen as dynamic switches. The switching patterns may be subject to combinatorial constraints such as, e.g., an upper bound on the total number of switchings or a lower bound on the time between two switchings. In a companion paper [arXiv:2203.07121], we describe the $L^p$-closure of the convex hull of feasible switching patterns as intersection of convex sets derived from finite-dimensional projections. In this paper, the resulting outer description is used for the construction of an outer approximation algorithm in function space, whose iterates are proven to converge strongly in $L^2$ to the global minimizer of the convexified optimal control problem. The linear-quadratic subproblems arising in each iteration of the outer approximation algorithm are solved by means of a semi-smooth Newton method. A numerical example in two spatial dimensions illustrates the efficiency of the overall algorithm.
description: arXiv admin note: substantial text overlap with arXiv:2203.07121
Peristedion Lacepede 1801
Creators: name: Ono, Makoto
name: Kawai, Toshio
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Scorpaeniformes
Peristediidae
Peristedion

description: Key to Japanese species of the genus Peristedion
 1. Rostral projection spatulate (Fig. 3B); anterior edge of fourth sensory pore of rostral projection posterior to anterior edge of premaxilla (Fig. 2B)........ P.liorhynchus
– Rostral projection triangular (Fig. 3A, C, D); anterior edge of fourth sensory pore of rostral projection anterior to anterior edge of premaxilla (Fig. 2A, C, D)....... 2
 2. Branches on filamentous barbel 13–20; total chin barbels 13–16; perifacial rim smooth and straight (Fig. 2A)...................................................................... P. orientale
– Branches on filamentous barbel 21–34; total chin barbels 17–26; perifacial rim prominent starting near anterior margin of lower jaw (Fig. 2C, D).......................... 3
 3. Rostral projection broadly triangular with straight margin on medial side at base (Fig. 2C); rostral projection width 12.1–13.3% HL......................... P. amblygenys
 – Rostral projection narrowly triangular with rounded margin on medial side at base (Fig. 2D); rostral projection width 8.6–12.3% HL.............................. P. nierstraszi
description: Published as part of Ono, Makoto & Kawai, Toshio, 2014, Review of Armored Searobins of the Genus Peristedion (Teleostei: Peristediidae) in Japanese Waters, pp. 117-131 in Species Diversity 19 on page 129, DOI: 10.12782/sd.19.2.117, http://zenodo.org/record/5737323
Additional file 1: of Phylogeographic analysis of the genus Platycephalus along the coastline of the northwestern Pacific inferred by mitochondrial DNA
Creators: name: Cheng, Jie
name: Wang, Zhiyang
name: Song, Na
name: Yanagimoto, Takashi
name: Gao, Tianxiang
Publisher: name: figshare
Year: 2019
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Environmental Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology

description: Table S1. Sample information and diversity metrics of the genus Platycephalus in the NWP. (DOCX 26 kb)
Magnetic force sensing using a self-assembled nanowire
Creators: name: Rossi, N.
name: Gross, B.
name: Dirnberger, F.
name: Bougeard, D.
name: Poggio, M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a scanning magnetic force sensor based on an individual magnet-tipped GaAs nanowire (NW) grown by molecular beam epitaxy. Its magnetic tip consists of a final segment of single-crystal MnAs formed by sequential crystallization of the liquid Ga catalyst droplet. We characterize the mechanical and magnetic properties of such NWs by measuring their flexural mechanical response in an applied magnetic field. Comparison with numerical simulations allows the identification of their equilibrium magnetization configurations, which in some cases include magnetic vortices. To determine a NW's performance as a magnetic scanning probe, we measure its response to the field profile of a lithographically patterned current-carrying wire. The NWs' tiny tips and their high force sensitivity make them promising for imaging weak magnetic field patterns on the nanometer-scale, as required for mapping mesoscopic transport and spin textures or in nanometer-scale magnetic resonance.
description: 8 pages, 5 figures
Additional file 2: of Evaluation of clinical efficacy of silver-needle warm acupuncture in treating adults with acute low back pain due to lumbosacral disc herniation: study protocol for a randomized controlled trial
Creators: name: Li, Tian
name: Wang, Siyao
name: Zhang, Shen
name: Shen, Xueyong
name: Song, Yanwen
name: Yang, Zhen
name: Huang, Zouqin
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Developmental Biology
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: Locations of selected eight core points in the treatment regimen. (DOCX 600 kb)
Ion Condensation onto Ribozyme is Site-Specific and Fold-Dependent
Creators: name: Hori, Naoto
name: Denesyuk, Natalia A.
name: Thirumalai, D.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Biomolecules (q-bio.BM)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: The highly charged RNA molecules, with each phosphate carrying a single negative charge, cannot fold into well-defined architectures with tertiary interactions, in the absence of ions. For ribozymes, divalent cations are known to be more efficient than monovalent ions in driving them to a compact state although Mg$^{2+}$ ions are needed for catalytic activities. Therefore, how ions interact with RNA is relevant in understanding RNA folding. It is often thought that most of the ions are territorially and non-specifically bound to the RNA, as predicted by the counterion condensation (CIC) theory. Here, we show using simulations of ${\it Azoarcus}$ ribozyme, based on an accurate coarse-grained Three Site Interaction (TIS) model, with explicit divalent and monovalent cations, that ion condensation is highly specific and depends on the nucleotide position. The regions with high coordination between the phosphate groups and the divalent cations are discernible even at very low Mg$^{2+}$ concentrations when the ribozyme does not form tertiary interactions. Surprisingly, these regions also contain the secondary structural elements that nucleate subsequently in the self-assembly of RNA, implying that ion condensation is determined by the architecture of the folded state. These results are in sharp contrast to interactions of ions (monovalent and divalent) with rigid charged rods in which ion condensation is uniform and position independent. The differences are explained in terms of the dramatic non-monotonic shape fluctuations in the ribozyme as it folds with increasing Mg$^{2+}$ or Ca$^{2+}$ concentration.
description: 22 pages including 9 figures, 5 SI figures, and 1 SI table
Additional file 1: of Fractional flow reserve-guided complete revascularization versus culprit-only revascularization in acute ST-segment elevation myocardial infarction and multi-vessel disease patients: a meta-analysis and systematic review
Creators: name: Wang, Li-Jie
name: Han, Shuo
name: Zhang, Xiao-Hong
name: Yuan-Zhe Jin
Publisher: name: figshare
Year: 2019
Subjects: Medicine
Developmental Biology

description: Figure S1. Risk of bias graph. (PDF 789 kb)
Spin-accumulation and Andreev-reflection in a mesoscopic ferromagnetic wire
Creators: name: Belzig, W.
name: Brataas, Arne
name: Nazarov, Yu. V.
name: Bauer, Gerrit E. W.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The electron transport though ferromagnetic metal-superconducting hybrid devices is considered in the non-equilibrium Green's function formalism in the quasiclassical approximation. Attention if focused on the limit in which the exchange splitting in the ferromagnet is much larger than the superconducting energy gap. Transport properties are then governed by an interplay between spin-accumulation close to the interface and Andreev reflection at the interface. We find that the resistance can either be enhanced or lowered in comparison to the normal case and can have a non-monotonic temperature and voltage dependence. In the non-linear voltage regime electron heating effects may govern the transport properties, leading to qualitative different behaviour than in the absence of heating effects. Recent experimental results on the effect of the superconductor on the conductance of the ferromagnet can be understood by our results for the energy-dependent interface resistance together with effects of spin- accumulation without invoking long range pairing correlations in the ferromagnet.
description: 15 pages, 12 figures included, submitted to PRB
Automorphic Forms on Unitary Groups
Creators: name: Eischen, Ellen
Publisher: name: arXiv
Year: 2022
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: This manuscript provides a more detailed treatment of the material from my lecture series at the 2022 Arizona Winter School on Automorphic Forms Beyond $GL_2$. The main focus of this manuscript is automorphic forms on unitary groups, with a view toward algebraicity results. I also discuss related aspects of automorphic $L$-functions in the setting of unitary groups.
description: A more detailed treatment of the material from my lecture series at the 2022 Arizona Winter School
Possible depletion of metals into dust grains in the core of the Centaurus cluster of galaxies
Creators: name: Lakhchaura, K.
name: Mernier, F.
name: Werner, N.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present azimuthally averaged metal abundance profiles from a full, comprehensive, and conservative re-analysis of the deep ($\sim$800 ks total net exposure) \textit{Chandra}/ACIS-S observation of the Centaurus cluster core (NGC\,4696). After carefully checking various sources of systematic uncertainties, including the choice of the spectral deprojection method, assumptions about the temperature structure of the gas, and uncertainties in the continuum modeling, we confirm the existence of a central drop in the abundances of the `reactive' elements Fe, Si, S, Mg, and Ca, within $r\lesssim$10 kpc. The same drops are also found when analyzing the \textit{XMM-Newton}/EPIC data ($\sim$150 ks). Adopting our most conservative approach, we find that, unlike the central drops seen for Fe, Si, S, Mg and Ca, the abundance of the `nonreactive' element Ar is fully consistent with showing no central drop. This is further confirmed by the significant ($>3σ$) central radial increase of the Ar/Fe ratio. Our results corroborate the previously proposed `dust depletion scenario' , in which central metal abundance drops are explained by the deposition of a significant fraction of centrally cooled reactive metals into dust grains present in the central regions of the Centaurus cluster. This is also supported by the previous findings that the extent of the metal abundance drops in NGC\,4696 broadly coincides with the infrared dust emission.
description: Accepted for publication in A&A; 12 pages, 5 figures, 2 tables
Observer Design for an Inertia Wheel Pendulum with Static Friction
Creators: name: Ecker, L.
name: Schlacher, K.
name: Schöberl, M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: A state observer design for the inertia wheel pendulum considering static friction of the actuated inertia disc is presented. The frictional force is modeled by the Stribeck effect, with two separate differential equations describing the sticking and non-sticking system, respectively. The transition between the two scenarios is in general determined by a static friction condition. Three proposed observers are designed for both the sticking and non-sticking model. Depending on the probability of the respective model given a current measurement, the more likely is selected for state estimation. The performance is demonstrated on a laboratory demonstrator, where the observers including the proposed probabilistic model selection are compared.
Helcogramma McCulloch and Waite 1918
Creators: name: Tashiro, Satokuni
name: Motomura, Hiroyuki
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Perciformes
Tripterygiidae
Helcogramma

description: Key to the species of Helcogramma in the Ryukyu Islands
 1a Lateral surface of body with three white (dusky in mature males) longitudinal stripes; orbital tentacles absent............................................................................... H. striata
 1b Lateral surface of body without longitudinal stripes; orbital tentacles present........................................................ 2
 2a Symphyseal mandibular pores 5 or more....................... 3
 2b Symphyseal mandibular pore 1........................................ 4
 3a Nape without scales; second dorsal-fin spines usually 13........................................................................... H. aquila
 3b Nape with scales; second dorsal-fin spines usually 15............................................................................... H. inclinata
 4a Pored lateral-line scales 28–39; no longitudinal row of reddish or dark blotches on middle of lateral surface of body; largest specimen of more than 50 mm SL.................................................................................. H. ishigakiensis
 4b Pored lateral-line scales 17–25; longitudinal row of reddish or dark blotches in middle of lateral surface of body (indistinct in mature males); largest specimen of less than 35 mm SL............................................................ 5
 5a Males with dermal prolongation on tip of snout; second dorsal-fin spines usually 15; anterior nostril tentacle unbranched.......................................... H. rhinoceros
 5b No dermal prolongation on tip of snout; second dorsalfin spins usually 14; anterior nostril tentacle branched.................................................................... H. fuscipectoris
description: Published as part of Tashiro, Satokuni & Motomura, Hiroyuki, 2014, The Validity of Helcogramma ishigakiensis (Aoyagi, 1954) and a Synopsis of Species of Helcogramma from the Ryukyu Islands, Southern Japan (Perciformes: Tripterygiidae), pp. 97-110 in Species Diversity 19 on page 109, DOI: 10.12782/sd.19.2.097, http://zenodo.org/record/5737457
Meshless method stencil evaluation with machine learning
Creators: name: Rot, Miha
name: Rashkovska, Aleksandra
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Numerical Analysis (math.NA)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Meshless methods are an active and modern branch of numerical analysis with many intriguing benefits. One of the main open research questions related to local meshless methods is how to select the best possible stencil - a collection of neighbouring nodes - to base the calculation on. In this paper, we describe the procedure for generating a labelled stencil dataset and use a variation of pointNet - a deep learning network based on point clouds - to create a classifier for the quality of the stencil. We exploit features of pointNet to implement a model that can be used to classify differently sized stencils and compare it against models dedicated to a single stencil size. The model is particularly good at detecting the best and the worst stencils with a respectable area under the curve (AUC) metric of around 0.90. There is much potential for further improvement and direct application in the meshless domain.
description: 6 pages, 7 figures
Evidence for Free Precession in the Pulsar B1642-03
Creators: name: Shabanova, T. V.
name: Lyne, A. G.
name: Urama, J. O.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present an analysis of the timing data of the pulsar B1642-03, collected over a span of 30 years between 1969 and 1999. During this interval, the timing residuals exhibit cyclical changes with amplitude varying from 15 ms to 80 ms and spacing of maxima varying from 3 years to 7 years. Interpretation of these observed cyclical changes in terms of free precession suggests a wobble angle of about 0.8 degrees.
description: 9 pages, 5 figures. Accepted for publication in ApJ