cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Quantitative measurements of the thermopower of Andreev interferometers
Creators: name: Dikin, D. A.
name: Jung, S.
name: Chandrasekhar, V.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Using a new second derivative technique and thermometers which enable us to determine the local electron temperature in a mesoscopic metallic sample, we have obtained quantitative measurements of the low temperature field and temperature dependent thermopower of Andreev interferometers. As in previous experiments, the thermopower is found to oscillate as a function of magnetic field. The temperature dependence of the thermopower is nonmonotonic, with a minimum at a temperature of $\simeq0.5$ K. These results are discussed from the perspective of Andreev reflection at the normal-metal/superconductor interface.
description: 6 pages, 4 figures
A dictionary and grammatical outline of Chakali
Creators: name: Brindle, Jonathan
Publisher: name: Freie Universität Berlin
Year: 2017
Subjects: subject: dictionary
subject: grammatical outline
subject: Chakali
subject: 400 Sprache::410 Linguistik::410 Linguistik

description: This book is the first comprehensive monograph dedicated to Chakali, a Southwestern Grusi language spoken by less than 3500 people in northwest Ghana. The dictionary offers a consistent description of word meaning and provides the basis for future research in the linguistic area. It is also designed to provide an inventory of correspondence with English usage in a reversal index. The concepts used in the dictionary are explained in a grammar outline, which is of interest to specialists in Gur and Grusi linguistics, as well as any language researchers working in this part of the world.
Toric Bruhat interval polytopes
Creators: name: Lee, Eunjeong
name: Masuda, Mikiya
name: Park, Seonjeong
Publisher: name: arXiv
Year: 2019
Subjects: subject: Combinatorics (math.CO)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: Primary: 14M25, 14M15, secondary: 05A05

description: For two elements $v$ and $w$ of the symmetric group $\mathfrak{S}_n$ with $v\leq w$ in Bruhat order, the Bruhat interval polytope $Q_{v,w}$ is the convex hull of the points $(z(1),\ldots,z(n))\in \mathbb{R}^n$ with $v\leq z\leq w$. It is known that the Bruhat interval polytope $Q_{v,w}$ is the moment map image of the Richardson variety $X^{v^{-1}}_{w^{-1}}$. We say that $Q_{v,w}$ is \emph{toric} if the corresponding Richardson variety $X_{w^{-1}}^{v^{-1}}$ is a toric variety. We show that when $Q_{v,w}$ is toric, its combinatorial type is determined by the poset structure of the Bruhat interval $[v,w]$ while this is not true unless $Q_{v,w}$ is toric. We are concerned with the problem of when $Q_{v,w}$ is (combinatorially equivalent to) a cube because $Q_{v,w}$ is a cube if and only if $X_{w^{-1}}^{v^{-1}}$ is a smooth toric variety. We show that a Bruhat interval polytope $Q_{v,w}$ is a cube if and only if $Q_{v,w}$ is toric and the Bruhat interval $[v,w]$ is a Boolean algebra. We also give several sufficient conditions on $v$ and $w$ for $Q_{v,w}$ to be a cube.
description: 30 pages, 10 figures
Intermediate phase in the spiral antiferromagnet Ba_2CuGe_2O_7
Creators: name: Chovan, J.
name: Papanicolaou, N.
name: Komineas, S.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The magnetic compound Ba_2CuGe_2O_7 has recently been shown to be an essentially two-dimensional spiral antiferromagnet that exhibits an incommensurate-to-commensurate phase transition when a magnetic field applied along the c-axis exceeds a certain critical value H_c. The T=0 dynamics is described here in terms of a continuum field theory in the form of a nonlinear sigma model. We are thus in a position to carry out a complete calculation of the low-energy magnon spectrum for any strength of the applied field throughout the phase transition. In particular, our spin-wave analysis reveals field-induced instabilities at two distinct critical fields H_1 and H_2 such that H_1 < H_c < H_2. Hence we predict the existence of an intermediate phase whose detailed nature is also studied to some extent in the present paper.
description: 15 pages, 11 figures, 2 tables
Correlated Trapped Bosons and the Many-Body Efimov Effect
Creators: name: Sørensen, O.
name: Fedorov, D. V.
name: Jensen, A. S.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We study two-body correlations in systems of identical bosons. We use a Faddeev type of decomposition of the wave function where all pairs of particles are treated equally. We focus on a new multi-particle Efimov effect at large scattering length, where infinitely many loosely bound many-body states appear. A confining external trap only allows a finite number of such spatially extended negative energy states inside the trap. The stability of a Bose condensate is determined by the decay into these model independent intermediate states which in turn decay into dimers.
description: 4 pages (RevTeX4), 3 latex-figures, submitted to Phys. Rev. Lett
Anoplocheylus Berlese 1910
Creators: name: Navaei-Bonab, R.
name: Bagheri, M.
name: Ueckermann, E. A.
name: Zarei, E.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Pseudocheylidae
Anoplocheylus

description: GENUS Anoplocheylus BERLESE, 1910
  Type species- Anoplocheylus europaeus Berlese, 1910
Diagnosis — Peritremes in soft cuticle connecting gnathosoma and idiosoma, completely or partly chambered; legs with pretarsi stalked, annulated, bearing a pliable empodium without claws (Figure 1a) (Ueckermann and Khanjani 2004).
description: Published as part of Navaei-Bonab, R., Bagheri, M., Ueckermann, E. A. & Zarei, E., 2011, Description Of A New Species Of Anoplocheylus Berlese, 1910 (Acari: Trombidiformes: Pseudocheylidae) From Iran, pp. 419-423 in Acarologia 51 (4) on page 421, DOI: 10.1051/acarologia/20112024, http://zenodo.org/record/5402808
Statistics and dynamics of blockings with a point vortex model
Creators: name: Hirt, Mirjam
name: Schielicke, Lisa
name: Müller, Annette
name: Névir, Peter
Publisher: name: Freie Universität Berlin
Year: 2018
Subjects: subject: Atmospheric blocking
subject: point vortices
subject: kinematic vorticity number
subject: stability analysis
subject: instantaneous blocking index
subject: circulation
subject: vortex identification
subject: vortex pattern recognition
subject: 500 Naturwissenschaften und Mathematik::550 Geowissenschaften, Geologie::551 Geologie, Hydrologie, Meteorologie

description: We investigate a reduced point vortex model for statistical and dynamical analyses of atmospheric blocking phenomena. Thereby, we consider High-over-low and Omega blocking as relative equilibria of two and three point vortices. Under certain conditions, such point vortex systems move westward opposing the mean westerly flow and hence can become stationary. Based on the kinematic vorticity number, two novel, independent methods, the contour and the trapezoid method, are introduced in order to identify the vortices that form the blocking pattern, their local positions and circulation magnitudes. While the contour method takes into account the observed stationarity of blocking, the trapezoid method minimizes the total circulation of the vortex system following point vortex theory. Using an instantaneous blocking index, a total number of 347 blocking periods were identified in NCEP-NCAR Reanalysis data for the Euro-Atlantic region during the time period 1990–2012. This procedure provides the basis to corroborate the applicability of the point vortex model to atmospheric blocking in a statistical framework. The calculated translation speed of point vortex systems associated with the atmospheric blocking appears to match the zonal mean velocity reasonably well. This model explains the stationary behaviour of blocking patterns. A comparison between the theoretical and a statistical model further reveals that the circulation of the blocking high follows the principles of the point vortex model to a large extent. However, the low-pressure systems behave more variable. Moreover, the stability of point vortex equilibria is analysed regarding the relative distances by considering linear stability analysis and simulations. This reveals that the point vortex blocking model corresponds to an unstable saddle point. Furthermore, we take viscosity and a Brownian motion into account to simulate the influence of the smaller, subgrid-scale disturbances. As a result, a clustering near the equilibrium state emerges indicating the persistence of the atmospheric blocking pattern.
Assessment of Climate Change Impacts on Barley Production in Rain-Fed Areas in Northern Egypt
Creators: name: Rabia, Ahmed Harb
name: Yacout, Dalia
name: Gomaa, Heba A.
name: Shaheen, Sarah Fekry
Publisher: name: figshare
Year: 2019
Subjects: subject: 70101 Agricultural Land Management
subject: FOS: Other agricultural sciences
subject: 70105 Agricultural Systems Analysis and Modelling
subject: 70199 Agriculture, Land and Farm Management not elsewhere classified
subject: 70301 Agro-ecosystem Function and Prediction
subject: FOS: Agriculture, forestry and fisheries

description: Conference Paper
Defect Structures in the Growth Kinetics of the Swift-Hohenberg Model
Creators: name: Qian, Hai
name: Mazenko, Gene F.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The growth of striped order resulting from a quench of the two-dimensional Swift-Hohenberg model is studied in the regime of a small control parameter and quenches to zero temperature. We introduce an algorithm for finding and identifying the disordering defects (dislocations, disclinations and grain boundaries) at a given time. We can track their trajectories separately. We find that the coarsening of the defects and lowering of the effective free energy in the system are governed by a growth law $L(t)\approx t^{x}$ with an exponent x near 1/3. We obtain scaling for the correlations of the nematic order parameter with the same growth law. The scaling for the order parameter structure factor is governed, as found by others, by a growth law with an exponent smaller than x and near to 1/4. By comparing two systems with different sizes, we clarify the finite size effect. We find that the system has a very low density of disclinations compared to that for dislocations and fraction of points in grain boundaries. We also measure the speed distributions of the defects at different times and find that they all have power-law tails and the average speed decreases as a power law.
description: 13 pages, 19 figures, accepted by Physical Review E
Supplementary Material from Skewed temperature dependence affects range and abundance in a warming world
Creators: name: Hurford, Amy
name: Cobbold, Christina A.
name: Molnár, Péter K.
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: 60102 Bioinformatics
subject: FOS: Computer and information sciences
subject: 10202 Biological Mathematics
subject: FOS: Mathematics

description: Population growth metrics such as R0 are usually asymmetric functions of temperature, with cold-skewed curves arising when the positive effects of a temperature increase outweigh the negative effects, and warm-skewed curves arising in the opposite case. Classically, cold-skewed curves are interpreted as more beneficial to a species under climate warming, because cold-skewness implies increased population growth over a larger proportion of the species' fundamental thermal niche than warm-skewness. However, inference based on the shape of the fitness curve alone, and without considering the synergistic effects of net reproduction, density and dispersal may yield an incomplete understanding of climate change impacts. We formulate a moving-habitat integrodifference equation model to evaluate how fitness curve skewness affects species’ range size and abundance during climate warming. In contrast to classic interpretations, we find that climate warming adversely affects populations with cold-skewed fitness curves, positively affects populations with warm-skewed curves and has relatively little or mixed effects on populations with symmetric curves. Our results highlight the synergistic effects of fitness curve skewness, spatially heterogeneous densities and dispersal in climate change impact analyses, and that the common approach of mapping changes only in R0 may be misleading.
MOESM5 of Molecular analysis of inherited cardiomyopathy using next generation semiconductor sequencing technologies
Creators: name: Lu, Chaoxia
name: Wu, Wei
name: Liu, Fang
name: Yang, Kunqi
name: Li, Jiacheng
name: Liu, Yaping
name: Wang, Rongrong
name: Si, Nuo
name: Gao, Peng
name: Liu, Yongtai
name: Zhang, Shuyang
name: Zhang, Xue
Publisher: name: figshare
Year: 2018
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer

description: Additional file 5: Table S4. Variants of uncertain significance or benign identified by cardiomyopathy NGS panels in this study.
He I $λ$ 10830 Å in the transmission spectrum of HD 209458 b
Creators: name: Alonso-Floriano, F. J.
name: Snellen, I. A. G.
name: Czesla, S.
name: Bauer, F. F.
name: Salz, M.
name: Lampón, M.
name: Lara, L. M.
name: Nagel, E.
name: López-Puertas, M.
name: Nortmann, L.
name: Sánchez-López, A.
name: Sanz-Forcada, J.
name: Caballero, J. A.
name: Reiners, A.
name: Ribas, I.
name: Quirrenbach, A.
name: Amado, P. J.
name: Aceituno, J.
name: Anglada-Escudé, G.
name: Béjar, V. J. S.
name: Brinkmöller, M.
name: Hatzes, A. P.
name: Henning, Th.
name: Kaminski, A.
name: Kürster, M.
name: Labarga, F.
name: Montes, D.
name: Pallé, E.
name: Schmitt, J. H. M. M.
name: Osorio, M. R. Zapatero
Publisher: name: arXiv
Year: 2019
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Context: Recently, the He I triplet at 10830 Å has been rediscovered as an excellent probe of the extended and possibly evaporating atmospheres of close-in transiting planets. This has already resulted in detections of this triplet in the atmospheres of a handful of planets, both from space and from the ground. However, while a strong signal is expected for the hot Jupiter HD 209458 b, only upper limits have been obtained so far. Aims: Our goal is to measure the helium excess absorption from HD 209458 b and assess the extended atmosphere of the planet and possible evaporation. Methods: We obtained new high-resolution spectral transit time-series of HD 209458 b using CARMENES at the 3.5 m Calar Alto telescope, targeting the He I triplet at 10830 Å at a spectral resolving power of 80 400. The observed spectra were corrected for stellar absorption lines using out of transit data, for telluric absorption using the molecfit software, and for the sky emission lines using simultaneous sky measurements through a second fibre. Results: We detect He I absorption at a level of 0.91 $\pm$ 0.10 % (9 $σ$) at mid-transit. The absorption follows the radial velocity change of the planet during transit, unambiguously identifying the planet as the source of the absorption. The core of the absorption exhibits a net blueshift of 1.8 $\pm$ 1.3 km s$^{-1}$. Possible low-level excess absorption is seen further blueward from the main absorption near the centre of the transit, which could be caused by an extended tail. However, this needs to be confirmed. Conclusions: Our results further support a close relationship between the strength of planetary absorption in the helium triplet lines and the level of ionising, stellar X-ray and extreme-UV irradiation.
Additives That Prevent Or Reverse Cathode Aging In Drift Chambers With Helium-Isobutane Gas
Creators: name: Boyarski, Adam
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Noise and Malter breakdown have been studied at high rates in a test chamber having the same cell structure and gas as in the BaBar drift chamber. The chamber was first damaged by exposing it to a high source level at an elevated high voltage, until its operating current at normal voltages was below 0.5nA/cm. Additives such as water or alcohol allowed the damaged chamber to operate at 25 nA/cm, but when the additive was removed the operating point reverted to the original low value. However with 0.02% to 0.05% oxygen or 5% carbon dioxide the chamber could operate at more than 25 nA/cm, and continued to operate at this level even after the additive was removed. This shows for the first time that running with an O2 or CO2 additive at high ionisation levels can cure a damaged chamber from breakdown problems.
description: There were typos: 0.2%-0.5% oxygen should be 0.02%-0.05% oxygen. Values in the Table were OK
Streaming Scene Maps for Co-Robotic Exploration in Bandwidth Limited Environments
Creators: name: Girdhar, Yogesh
name: Cai, Levi
name: Jamieson, Stewart
name: McGuire, Nathan
name: Flaspohler, Genevieve
name: Suman, Stefano
name: Claus, Brian
Publisher: name: arXiv
Year: 2019
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: This paper proposes a bandwidth tunable technique for real-time probabilistic scene modeling and mapping to enable co-robotic exploration in communication constrained environments such as the deep sea. The parameters of the system enable the user to characterize the scene complexity represented by the map, which in turn determines the bandwidth requirements. The approach is demonstrated using an underwater robot that learns an unsupervised scene model of the environment and then uses this scene model to communicate the spatial distribution of various high-level semantic scene constructs to a human operator. Preliminary experiments in an artificially constructed tank environment as well as simulated missions over a 10m$\times$10m coral reef using real data show the tunability of the maps to different bandwidth constraints and science interests. To our knowledge this is the first paper to quantify how the free parameters of the unsupervised scene model impact both the scientific utility of and bandwidth required to communicate the resulting scene model.
description: 8 pages, 6 figures, accepted for presentation in IEEE Int. Conf. on Robotics and Automation, ICRA '19, Montreal, Canada, May 2019
Mesoplophora Berlese 1904
Creators: name: Niedbała, Wojciech
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Mesoplophoridae
Mesoplophora

description: Mesoplophora Berlese, 1904
 Mesoplophora: Aoki 1980c, Subías 2004 Phthiracarulus Berlese, 1920: Hammen 1959
 Type species: Mesoplophora michaeliana Berlese, 1904
Diagnosis — Small species. Distance between genital and anal plates equal to half the length of anal plates; nine to 10 pairs of “ventral” setae; two to four pairs of anal setae; seven pairs of genital setae, formula 6+1 or 5+2; setation of palps: 0-2-0-3- 12+1.
description: Published as part of Niedbała, Wojciech, 2017, Ptyctimous mites (Acari, Oribatida) of Tanzania, pp. 957-1072 in Acarologia 57 (4) on page 962, DOI: 10.24349/acarologia/20174217, http://zenodo.org/record/5402635
Growing Scale-Free Networks with Small World Behavior
Creators: name: Klemm, Konstantin
name: Eguiluz, Victor M.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: In the context of growing networks, we introduce a simple dynamical model that unifies the generic features of real networks: scale-free distribution of degree and the small world effect. While the average shortest path length increases logartihmically as in random networks, the clustering coefficient assumes a large value independent of system size. We derive expressions for the clustering coefficient in two limiting cases: random (C ~ (ln N)^2 / N) and highly clustered (C = 5/6) scale-free networks.
description: 4 pages, 4 figures
On Properties of Expansion-free Dynamical Stars
Creators: name: Sherif, Abbas
name: Goswami, Rituparno
name: Maharaj, Sunil D.
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the geometrical and dynamical features of expansion-free dynamical stars in general relativity. Such stars can exist only if particular physical and geometric conditions are satisfied. Firstly, for trapping to exist in an expansion-free dynamical star, the star must accelerate and radiate simultaneously. If either are zero, then the shear \(Sigma\) must be zero through out the star, in which case the star is static (\(Θ=Σ=0\)). Secondly, we prove that with nonzero acceleration and radiation expansion-free dynamical stars must be conformally flat.
description: 6 pages
Mesoplophora (Mesoplophora) invisistata Niedbala 1983
Creators: name: Niedbała, Wojciech
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Mesoplophoridae
Mesoplophora
Mesoplophora invisistata

description: Mesoplophora (Mesoplophora) invisistata Niedbała, 1983
 (Fig. 2 A-F)
 Mesoplophora (Mesoplophora) invisistata: Niedbała 2001.
 Diagnosis — Measurements of holotype: prodorsum: length 267, width 183, height 126; notogaster: length 364, width 303, height 222. Species of medium size; colour yellow. Prodorsum with pointed rostrum; lateral carinae present; sensilli (ss) long with 8 thin spines; other setae smooth, interlamellar (in) setae longer than lamellar (le) and rostral (ro) setae; exobothridial (ex) setae equal to diameter of bothridia. Notogaster with 8 pairs of strong, rough setae, c 1-3 remote from anterior margin, setae e 1 and e 2 thicker than other setae. Ventral region with 9 pairs of ventral setae unequal in length; 7 pairs of genital setae with formula: 5+2; 2 pairs of anal setae present.
Localities in Tanzania: Nguru Mts. Species new for TAN.
Distribution — It is pantropical; oriental and afrotropical species.
description: Published as part of Niedbała, Wojciech, 2017, Ptyctimous mites (Acari, Oribatida) of Tanzania, pp. 957-1072 in Acarologia 57 (4) on page 962, DOI: 10.24349/acarologia/20174217, http://zenodo.org/record/5402635
Granular Gases - the early stage
Creators: name: Brilliantov, Nikolai V.
name: Poeschel, Thorsten
Publisher: name: arXiv
Year: 2002
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigate the evolution of the velocity distribution function of a granular gas composed of viscoelastic particles in the homogeneous cooling state, i.e. before clustering occurs. The deviation of the velocity distribution function from the Maxwellian distribution is quantified by a Sonine polynomials expansion. The first non-vanishing Sonine coefficient a_2(t), reveals a complex time dependence which allows to assign the granular gas the property of an age. We discuss the possibility to measure the age of a granular gas.
description: 12 pages, 3 figures
Mesoplophora (Mesoplophora) rostrata Mahunka 1988
Creators: name: Niedbała, Wojciech
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Mesoplophoridae
Mesoplophora
Mesoplophora rostrata

description: Mesoplophora (Mesoplophora) rostrata Mahunka, 1988
 (Fig. 3 A-G)
description: Published as part of Niedbała, Wojciech, 2017, Ptyctimous mites (Acari, Oribatida) of Tanzania, pp. 957-1072 in Acarologia 57 (4) on page 962, DOI: 10.24349/acarologia/20174217, http://zenodo.org/record/5402635
Equivariant Hirzebruch classes and Molien series of quotient singularities
Creators: name: Donten-Bury, Maria
name: Weber, Andrzej
Publisher: name: Freie Universität Berlin
Year: 2018
Subjects: subject: Hirzebruch class
subject: McKay correspondence
subject: 500 Naturwissenschaften und Mathematik::510 Mathematik::510 Mathematik

description: We study properties of the Hirzebruch class of quotient singularities ℂ n /G, where G is a finite matrix group. The main result states that the Hirzebruch class coincides with the Molien series of G under suitable substitution of variables. The Hirzebruch class of a crepant resolution can be described specializing the orbifold elliptic genus constructed by Borisov and Libgober. It is equal to the combination of Molien series of centralizers of elements of G. This is an incarnation of the McKay correspondence. The results are illustrated with several examples, in particular of 4-dimensional symplectic quotient singularities.
Spin Seebeck effect in paramagnets and antiferromagnets at elevated temperatures
Creators: name: Yamamoto, Yutaka
name: Ichioka, Masanori
name: Adachi, Hiroto
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We develop a theory of the spin Seebeck effect (SSE) in paramagnets as well as in antiferromagnets at elevated temperatures where the classical limit of the fluctuation-dissipation theorem is applicable. Employing dissipative stochastic models that are valid at these temperatures, we calculate the SSE signal, and we find that both the paramagnetic SSE and the antiferromagnetic SSE are expressed by a single equation that is proportional to the external magnetic field times the spin susceptibility of the magnet. The present result suggests the appearance of a cusp structure at the Neel temperature in the antiferromagnetic SSE signal.
description: 10 pages, 4 figures
A classification algorithm for selective dynamical downscaling of precipitation extremes
Creators: name: Meredith, Edmund P.
name: Rust, Henning W.
name: Ulbrich, Uwe
Publisher: name: Freie Universität Berlin
Year: 2018
Subjects: subject: climate data
subject: classification algorithm
subject: downscaling framework
subject: 500 Naturwissenschaften und Mathematik::550 Geowissenschaften, Geologie::551 Geologie, Hydrologie, Meteorologie

description: High-resolution climate data O(1km) at the catchment scale can be of great value to both hydrological modellers and end users, in particular for the study of extreme precipitation. While dynamical downscaling with convection-permitting models is a valuable approach for producing quality high-resolution O(1km) data, its added value can often not be realized due to the prohibitive computational expense. Here we present a novel and flexible classification algorithm for discriminating between days with an elevated potential for extreme precipitation over a catchment and days without, so that dynamical downscaling to convection-permitting resolution can be selectively performed on high-risk days only, drastically reducing total computational expense compared to continuous simulations; the classification method can be applied to climate model data or reanalyses. Using observed precipitation and the corresponding synoptic-scale circulation patterns from reanalysis, characteristic extremal circulation patterns are identified for the catchment via a clustering algorithm. These extremal patterns serve as references against which days can be classified as potentially extreme, subject to additional tests of relevant meteorological predictors in the vicinity of the catchment. Applying the classification algorithm to reanalysis, the set of potential extreme days (PEDs) contains well below 10% of all days, though it includes essentially all extreme days; applying the algorithm to reanalysis-driven regional climate simulations over Europe (12km resolution) shows similar performance, and the subsequently dynamically downscaled simulations (2km resolution) well reproduce the observed precipitation statistics of the PEDs from the training period. Additional tests on continuous 12km resolution historical and future (RCP8.5) climate simulations, downscaled in 2km resolution time slices, show the algorithm again reducing the number of days to simulate by over 90% and performing consistently across climate regimes. The downscaling framework we propose represents a computationally inexpensive means of producing high-resolution climate data, focused on extreme precipitation, at the catchment scale, while still retaining the advantages of convection-permitting dynamical downscaling.
Enhancing Responsible Conduct of Science in Egypt
Creators: name: Rabia, Ahmed Harb
name: Yacout, Dalia
name: Shaheen, Sarah Fekry
Publisher: name: figshare
Year: 2019
Subjects: subject: 40104 Climate Change Processes
subject: FOS: Earth and related environmental sciences
subject: 130306 Educational Technology and Computing
subject: FOS: Educational sciences
subject: Education
subject: 130103 Higher Education
subject: 130303 Education Assessment and Evaluation

description: Within the last few years many studies arouse the issue of scientific ethics violation and misbehavior of responsible conduct of science (RCS) among researchers worldwide. In Egypt, both the academic and research communities suffer as well from RCS problems. Lack of awareness about RCS and wrong practices are one of the major challenges facing the development of the national research community. This study aimed to evaluate the current knowledge about different RCS topics among Egyptian scholars and researchers in order to recommend improvement options to enhance and foster RCS practices in Egypt. Through the project we assessed the current knowledge level of RCS, the need for teaching RCS, identified most required topics, reviewed current teaching methods of RCS and suggested preferable teaching techniques. Data about RCS in Egypt was collected from an online survey, feedbacks and interviews. Total number of participants were280Egyptian graduated student, staff member and researcher who participated in RCS workshops or studied RCS materials at different universities across Egypt. According to the gathered information, the most required topics to be taught are: preventing plagiarism, avoiding fabrication and falsification, recognizing responsible authorship and understanding International Standards of publication. It is highly recommended to teach RCS by active learning techniques, through expert instructors in active learning teaching and who obtains the proper RCS knowledge. Furthermore, developing the current courses which introduce RCS is a must.
Step Repulsion Mediates Wandering on a Si(001) Vicinal Face
Creators: name: Sato, M.
name: Uwaha, M.
name: Saito, Y.
name: Hirose, Y.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: With a Si(001) vicinal surface in mind, we study step wandering instability on a vicinal surface with an anisotropic surface diffusion whose orientation dependence alternates on each consecutive terrace. In a conserved system step wandering takes place with step-up adatom drift. Repulsive interaction between steps is found indispensable for the instability. Monte Carlo simulation with a strong repulsive step interaction confirms the result of linear stability analysis, and further shows that in-phase step wandering produces straight grooves. Grooves widen as their amplitudes increase in proportion to the square root of time.
description: 4 pages, 5 figures, REVTEX4
Further Evidence for the Decay K+ to pi+ neutrino-antineutrino
Creators: name: E787 Collaboration
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Additional evidence for the rare kaon decay K+ to pi+ neutrino-antineutrino has been found in a new data set with comparable sensitivity to the previously reported result. One new event was observed in the pion momentum region examined, 211
description: 10 pages, 2 figures
Radiative decays of $h_{c}$ to the light mesons $η^{(\prime)}$: A perturbative QCD calculation
Creators: name: Fan, Chao-Jie
name: He, Jun-Kang
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the radiative decays $h_{c}\rightarrowγη^{(\prime)}$ in the framework of perturbative QCD and evaluate analytically the one-loop integrals with the light quark masses kept. Interestingly, the branching ratios $\mathcal{B}(h_{c}\rightarrowγη^{(\prime)})$ are insensitive to both the light quark masses and the shapes of $η^{(\prime)}$ distribution amplitudes. And it is noticed that the contribution of the gluonic content of $η^{(\prime)}$ is almost equal to that of the quark-antiquark content of $η^{(\prime)}$ in the radiative decays $h_{c} \rightarrow γη^{(\prime)}$. By employing the ratio $R_{h_{c}}=\mathcal{B}(h_{c}\rightarrowγη)/\mathcal{B}(h_{c}\rightarrowγη^{\prime})$, we extract the mixing angle $ϕ=33.8^{\circ}\pm2.5^{\circ}$, which is in clear disagreement with the Feldmann-Kroll-Stech result $ϕ=39.0^{\circ}\pm1.6^{\circ}$ extracted from the ratio $R_{J/ψ}$ with nonperturbative matrix elements $\langle 0\mid G^{a}_{μν}\tilde{G}^{a,μν}\midη^{(\prime)}\rangle$, but in consistent with $ϕ=33.5^{\circ}\pm0.9^{\circ}$ extracted from the asymptotic limit of the $γ^{\ast}γ-η^{\prime}$ transition form factor and $ϕ=33.9^{\circ}\pm0.6^{\circ}$ extracted from $R_{J/ψ}$ in perturbative QCD. We also briefly discuss possible reasons for the difference in the determinations of the mixing angle.
description: 14 pages, 6 figures and 5 tables
Field induced transitions in a kagome antiferromagnet
Creators: name: Zhitomirsky, M. E.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The thermal order by disorder effect in magnetic field is studied for a classical Heisenberg antiferromagnet on the kagome lattice. Using analytical arguments we predict a unique H-T phase diagram for this strongly frustrated magnet: states with a coplanar and a uniaxial triatic order parameters respectively at low and high magnetic fields and an incompressible collinear spin-liquid state at a one-third of the saturation field. We also present the Monte Carlo data which confirm existence of these phases.
description: 4 pages, 2 figures, accepted version
Gaeolaelaps aculeifer
Creators: name: Mahjoori, M.
name: Hajizadeh, J.
name: M. R
name: I, Northern
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Mesostigmata
Laelapidae
Gaeolaelaps
Gaeolaelaps aculeifer

description: Gaeolaelaps aculeifer (CANESTRINI, 1884)
M a t e r i a l e x a m i n e d: Adult, Iran, Guilan province, collected from olive soil: Rostamabad, 170m, 36°53´54.00´´N, 49°29´26.00´´E, July 2013; Roodbar, 237m, 36°49´26.86´´N, 49°25´25.42´´E, July 2013; August 2013; October 2013. Collected by M. Mahjoori.
D i s t r i b u t i o n: Canada, England Germany, Iran, Italy, Netherlands, North American and Sweden, (HUGHES 1976; BALOOCH SHAHRYARI et al. 2012).
description: Published as part of Mahjoori, M., Hajizadeh, J., M. R & I, Northern, 2014, Mites of the family Laelapidae (Acari: Mesostigmata) associated with olive orchards in Guilan Province Iran, pp. 1599-1606 in Linzer biologische Beiträge 46 (2) on page 1601, DOI: 10.5281/zenodo.5311378
Artificial neural network regression models: Predicting GDP growth
Creators: name: Jahn, Malte
Publisher: name: figshare
Year: 2019
Subjects: subject: Economics
subject: 140303 Economic Models and Forecasting
subject: FOS: Economics and business

description: check http://www.hwwi.org/fileadmin/hwwi/Publikationen/Publikationen_PDFs_2018/HWWI_ResearchPaper_185.pdf
La sociedad 2.0 y el espejismo de las redes sociales en la modernidad líquida
Creators: name: Canaza-Choque, Franklin Américo
Publisher: name: figshare
Year: 2021
Subjects: subject: 80709 Social and Community Informatics
subject: FOS: Media and communications
subject: 80503 Networking and Communications
subject: FOS: Computer and information sciences

description: A finales de los 90 del pasado siglo, quizás nadie imaginó que Internet absorbería con el tiempo espacios sociales, políticos, económicos y culturales. Cuando el término de Web 2.0 se asentó en el universo digital y en la sociedad, las condiciones de privacidad, espacio y tiempo se vieron agotados por el mismo avance que este representaría años después. Y entonces, comenzaron a surgir alteraciones en el planeta, eclosionaron nuevos lazos de identidad, de relaciones superfluas, se crearon comunidades y movimientos virtuales en el que los desamparados empezaron por buscar espacios de reconocimiento y seguridad ante las amenazas del mundo exterior. El propósito del artículo es analizar los efectos que Internet ha provocado en los habitantes del globo y, en particular, sobre las anomalías que se esconden y emergen detrás de la red social más poderosa del planeta, Facebook. En este trayecto, el estudio se deriva del modelo cualitativo hermenéutico – interpretativo, de la investigación teórica y del razonamiento teórico de los sociólogos Zygmunt Bauman y Manuel Castells. Los resultados muestran que en este matiz de la modernidad líquida, tras el desamparo, las sociedades se muestran vulnerables a las secuelas de las redes sociales, es así que el gigante azul, Facebook, comienza por adueñarse ya recrear una comunidad ideal en el ciberespacio, acogiendo a miles de usuarios, en el que sentirse solos, ya no es una posibilidad. Sin embargo, entre las rarezas del ecosistema líquido, está en que el ideal, el sueño en sí, termine para muchos being una pesadilla.
Mesoplophora (Parplophora) pulchra Sellnick 1928
Creators: name: Niedbała, Wojciech
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Mesoplophoridae
Mesoplophora
Mesoplophora pulchra

description: Mesoplophora (Parplophora) pulchra Sellnick, 1928
 (Fig. 4 A-C)
 Diagnosis — Measurements of the specimens from sample TAN-014: Prodorsum: length 182, width and height 144, setae: ss 73, in 68, le and ro 63, ex 10; notogaster: length 242, width 202, height 156, setae: c 1 and e 1 73, c 3 43; genital plate 56×28, anal plate 33×35, distance between genital and anal plates 20.
 Small-sized species; colour yellow. Prodorsum with pointed rostrum; sensilli long, filiform with head slightly fusiform; other setae simple; interlamellar setae the longest but thinner than lamellar and rostral setae; exobothridial setae the finest, shorter than diameter of bothridia. Setae of notogaster, except setae c 2 and c 3 covered with some spines; setae c 2 the thinnest and more remote from anterior border than setae c 1 and c 3. Ventral region; formula of epimeral region: 3-1-3-1; 10 pairs of ventral setae present; 7 pairs of genital setae with formulae: 5: 2 and 3 pairs of anal setae present. Chaetome of legs: I: 0-3-3(1)-4(1)-16(3), II: 0-4-3(1)- 3(1)-13(1), III: 2-2-2(1)-2(1)-10, IV: 2-2-0-8; tarsi monodactylous.
Locality in Tanzania: Uluguru Mts. Species new to TAN and Afrotropical Region.
 Remark — All characters of the specimen from TAN-014 are the same as in the description. I found only setae c 3 of notogaster finest and shortest than other notogastral setae.
Distribution — Western Palaearctic, distributed in Central Europe, Maghreb countries, Anatolian and Iranian areas. It is surprising to find this Western Palaearctic species in Tanzania.
description: Published as part of Niedbała, Wojciech, 2017, Ptyctimous mites (Acari, Oribatida) of Tanzania, pp. 957-1072 in Acarologia 57 (4) on page 965, DOI: 10.24349/acarologia/20174217, http://zenodo.org/record/5402635
From an Fe2P3 complex to FeP nanoparticles as efficient electrocatalysts for water-splitting
Creators: name: Yao, Shenglai
name: Forstner, Viktoria
name: Menezes, Prashanth W.
name: Panda, Chakadola
name: Mebs, Stefan
name: Zolnhofer, Eva M.
name: Miehlich, Matthias E.
name: Szilvási, Tibor
name: Kumar, Nanjundan Ashok
name: Haumann, Michael
name: Meyer, Karsten
name: Grützmacher, Hansjörg
name: Driess, Matthias
Publisher: name: Freie Universität Berlin
Year: 2018
Subjects: subject: hydrogen production from water-splitting
subject: electrochemical catalysts
subject: 500 Natural sciences and mathematics::530 Physics::539 Modern physics

description: In large-scale, hydrogen production from water-splitting represents the most promising solution for a clean, recyclable, and low-cost energy source. The realization of viable technological solutions requires suitable efficient electrochemical catalysts with low overpotentials and long-term stability for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) based on cheap and nontoxic materials. Herein, we present a unique molecular approach to monodispersed, ultra-small, and superiorly active iron phosphide (FeP) electrocatalysts for bifunctional OER, HER, and overall water-splitting. They result from transformation of a molecular iron phosphide precursor, containing a [Fe2P3] core with mixed-valence FeIIFeIII sites bridged by an asymmetric cyclo-P(2+1)3− ligand. The as-synthesized FeP nanoparticles act as long-lasting electrocatalysts for OER and HER with low overpotential and high current densities that render them one of the best-performing electrocatalysts hitherto known. The fabricated alkaline electrolyzer delivered low cell voltage with durability over weeks, representing an attractive catalyst for large-scale water-splitting technologies.
On-the-fly machine learning force field generation: Application to melting points
Creators: name: Jinnouchi, Ryosuke
name: Karsai, Ferenc
name: Kresse, Georg
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: An efficient and robust on-the-fly machine learning force field method is developed and integrated into an electronic-structure code. This method realizes automatic generation of machine learning force fields on the basis of Bayesian inference during molecular dynamics simulations, where the first principles calculations are only executed, when new configurations out of already sampled datasets appear. The developed method is applied to the calculation of melting points of Al, Si, Ge, Sn and MgO. The applications indicate that more than 99 \% of the first principles calculations are bypassed during the force field generation. This allows the machine to quickly construct first principles datasets over wide phase spaces. Furthermore, with the help of the generated machine learning force fields, simulations are accelerated by a factor of thousand compared with first principles calculations. Accuracies of the melting points calculated by the force fields are examined by thermodynamic perturbation theory, and the examination indicates that the machine learning force fields can quantitatively reproduce the first principles melting points.
description: 15 pages, 7 figures and 2 tables
Second-order topological insulators and superconductors with an order-two crystalline symmetry
Creators: name: Geier, Max
name: Trifunivoc, Luka
name: Hoskam, Max
name: Brouwer, Piet W.
Publisher: name: Freie Universität Berlin
Year: 2018
Subjects: subject: Topological insulators
subject: Topological phases of matter
subject: Topological superconductors
subject: 500 Naturwissenschaften und Mathematik::530 Physik::530 Physik

description: Second-order topological insulators and superconductors have a gapped excitation spectrum in bulk and along boundaries, but protected zero modes at corners of a two-dimensional crystal or protected gapless modes at hinges of a three-dimensional crystal. A second-order topological phase can be induced by the presence of a bulk crystalline symmetry. Building on Shiozaki and Sato's complete classification of bulk crystalline phases with an order-two crystalline symmetry [Phys. Rev. B 90, 165114 (2014)], such as mirror reflection, twofold rotation, or inversion symmetry, we classify all corresponding second-order topological insulators and superconductors. The classification also includes antiunitary symmetries and antisymmetries.
HWWI_ResearchPaper_185.pdf
Creators: name: Jahn, Malte
Publisher: name: figshare
Year: 2019
Subjects: subject: Economics
subject: 140303 Economic Models and Forecasting
subject: FOS: Economics and business

description: check http://www.hwwi.org/fileadmin/hwwi/Publikationen/Publikationen_PDFs_2018/HWWI_ResearchPaper_185.pdf
`Tight Binding' methods in quantum transport through molecules and small devices: From the coherent to the decoherent description
Creators: name: Pastawski, Horacio M.
name: Medina, Ernesto
Publisher: name: arXiv
Year: 2001
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We discuss the steady-state electronic transport in solid-state and molecular devices in the quantum regime. The decimation technique allows a comprehensive description of the electronic structure. Such a method is used, in conjunction with the generalizations of Landauer's tunneling formalism, to describe a wide range of transport regimes. We analize mesoscopic and semiclassical metallic transport, the metal-insulator transition, and the resonant tunneling regime. The effects of decoherence on transport is discussed in terms of the D'Amato-Pastawski model. A brief presentation of the time dependent phenomena is also included.
description: 25 pages 20 figures
Scaling properties of granular materials
Creators: name: Poeschel, Thorsten
name: Saluena, Clara
name: Schwager, Thomas
Publisher: name: arXiv
Year: 2002
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Given an assembly of viscoelastic spheres with certain material properties, we raise the question how the macroscopic properties of the assembly will change if all lengths of the system, i.e. radii, container size etc., are scaled by a constant. The result leads to a method to scale down experiments to lab-size.
description: 4 pages, 2 figures
$γ$-ray Strength Function for Barium Isotopes
Creators: name: Utsunomiya, H.
name: Renstrøm, T.
name: Tveten, G. M.
name: Goriely, S.
name: Ari-izumi, T.
name: Ingeberg, V. W.
name: Kheswa, B. V.
name: Lui, Y. -W.
name: Miyamoto, S.
name: Hilaire, S.
name: Péru, S.
name: Koning, A. J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Photoneutron cross sections were measured for $^{137}$Ba and $^{138}$Ba at energies below two-neutron threshold using quasi-monochromatic $γ$-ray beams produced in laser Compton-scattering at the NewSUBARU synchrotron radiation facility. The photoneutron data are used to constrain the $γ$-ray strength function on the basis of the Hartree-Fock-Bogolyubov plus quasi-particle random phase approximation using the Gogny D1M interaction. Supplementing the experimentally constrained $γ$-ray strength function with the zero-limit E1 and M1 contributions which are unique to the deexcitation mode, we discuss radiative neutron capture cross sections relevant to the s-process nucleosynthesis of barium isotopes in the vicinity of the neutron magic number 82.
description: arXiv admin note: substantial text overlap with arXiv:1811.00291, arXiv:1804.07654
Euphthiracaroidea Jacot 1930
Creators: name: Niedbała, Wojciech
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Oribatida

description: Euphthiracaroidea Jacot, 1930  Diagnosis — Body considerably compressed laterally, genitoaggenital and anoadanal regions narrow, V-shaped.
description: Published as part of Niedbała, Wojciech, 2017, Ptyctimous mites (Acari, Oribatida) of Tanzania, pp. 957-1072 in Acarologia 57 (4) on page 965, DOI: 10.24349/acarologia/20174217, http://zenodo.org/record/5402635