cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Species delimitation and molecular phylogeny of the grasshopper subfamily Gomphocerinae (Orthoptera: Acrididae) from Algeria based on mitochondrial and nuclear DNA markers
Creators: name: Hafayed, Rachida
name: Moussi, Abdelhamid
name: Chang, Huihui
name: Huang, Yuan
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified

description: Gomphocerinae grasshoppers (Orthoptera: Acrididae) are generally characterised by their polymorphism and cryptic diversity, which can be confusing when relying on morphological identification alone. DNA taxonomy serves as a powerful molecular tool for species identification and biodiversity assessment. In the context of zoogeography and the biodiversity conservation of animal resources in ecosystems, DNA barcoding data for Algerian Gomphocerinae fauna remains limited in global databases, despite their agroeconomic and environmental importance. Therefore, in this study, we collected various species of this subfamily from the Biskra region in Algeria and conducted DNA barcoding analysis, employing different molecular species delimitation methods (the automatic barcode gap discovery, assemble species by automatic partitioning, single-threshold general mixed Yule coalescent model, Bayesian Poisson tree process and multi-rate Poisson tree process methods), as well as phylogenetic analyses (maximum-likelihood and Bayesian inference) based on two molecular markers (COI and ITS). The results of the 163 newly generated sequences demonstrated that DNA barcoding technology is highly efficient and valuable for species identification in the subfamily Gomphocerinae, showing strong congruence with morphological evidence for 12 species, including eight species that were sequenced for the first time. This study also reported a new record of the genus Stenohippus Uvarov, 1926 in Algeria, comprising two species. Additionally, taxonomic revision allowed the species Dociostaurus biskrensis Moussi & Petit, 2014, to be transferred to the genus Stenohippus. Molecular tree analyses revealed the phylogenetic positions of the newly sequenced species within the subfamily Gomphocerinae and provided insights into their evolutionary relationships. These new data serve as a starting point for future research in other geographical areas, enabling a better understanding of the biodiversity of this insect group in Algeria.
A Defective Graphene Phase Predicted to be a Room Temperature Ferromagnetic Semiconductor
Creators: name: Pisani, L.
name: Montanari, B.
name: Harrison, N. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Theoretical calculations, based on hybrid exchange density functional theory, are used to show that in graphene a periodic array of defects generates a ferromagnetic ground state at room temperature for unexpectedly large defect separations. This is demonstrated for defects that consist of a carbon vacancy in which two of the dangling bonds are saturated with H atoms. The magnetic coupling mechanism is analysed and found to be due to an instability in the $π$ electron system with respect to a long-range spin polarisation characterised by alternation in the spin direction between adjacent carbon atoms. The disruption of the $π$-bonding opens a semiconducting gap at the Fermi edge. The size of the energy gap and the magnetic coupling strength are strong functions of the defect separation and can thus be controlled by varying the defect concentration. The position of the semiconducting energy gap and the electron effective mass are strongly spin-dependent and this is expected to result in a spin asymmetry in the transport properties of the system. A defective graphene sheet is therefore a very promising material with an in-built mechanism for tailoring the properties of the spintronic devices of the future.
description: 9 pages, 4 figures
Selected Methods for Field-Controlled Reconfiguration of Soft-Matter Electrical Contacts
Creators: name: Wissman, James P.
Publisher: name: Carnegie Mellon University
Year: 2017
Subjects: subject: Mechanical Engineering
subject: FOS: Mechanical engineering

description: Just as conventional mechatronic systems rely on switches and relays, machines that are soft and elastically deformable will require compliant materials that can support field-controlled reconfiguration. In this dissertation, I present several novel approaches to shape programmability that primarily rely on condensed soft matter and are stimulated by electric or magnetic fields. I begin with electric-field-driven methods for achieving shape programmability of elastomer-based systems. These include dielectric elastomer actuators and electrostatic beams that undergo extreme stretch. Classical theories in elasticity and electrostatics are used to examine the mechanical responses and instabilities of these soft, hyperelastic systems. Such modeling techniques are also used to examine another switching mode based on the snap through behavior of a buckled ferromagnetic beam under magnetic load. I will then discuss a unique approach to shape programmability that is based on electrochemistry and exploits the coalescence and separation of anchored liquid metal drops. In this case, electrical signals under 10V are utilized to manipulate surface energies and transition between bi-stable states. Experiments and Surface Evolver simulations show that oxidation and reduction on opposing poles of the coalesced drops create an interfacial tension gradient that eventually leads to limit-point instability. Theory derived from bipolar electrochemistry and vertical electrical sounding predicts droplet motion and separation based on geometry and bath conductivity, facilitating the optimization of reconfigurable devices using this phenomenon. I conclude with the application of the bi-stable droplets to a simple toggle switch capable of changing circuit conductivity by over three orders of magnitude.
Segment-based SVMs for Time Series Analysis
Creators: name: Nguyen, Minh Hoai
Publisher: name: Carnegie Mellon University
Year: 2012
Subjects: subject: 80101 Adaptive Agents and Intelligent Robotics
subject: FOS: Computer and information sciences

description: Enabling computers to understand human and animal behavior has the potential to revolutionize many areas that benefit society such as clinical diagnosis, human-computer interaction, and social robotics. Critical to the understanding of human and animal behavior, and any temporally-varying phenomenon in general, is the capability to segment, classify, and cluster time series data. This thesis proposes segment-based Support Vector Machines (Seg-SVMs), a framework for supervised, weakly-supervised, and unsupervised time series analysis. Seg-SVMs outperform state-of-the-art approaches by combining three powerful ideas: energy-based structure prediction, bag-of-words representation, and maximum-margin learning. Energy-based structure prediction provides a principled mechanism for concurrent top-down recognition and bottom-up temporal localization. Bag-of-words representation provides segment-based features that tolerate misalignment errors and are computationally efficient. Maximum-margin learning, such as SVM and Structure Output SVM, has a convex learning formulation; it produces classifiers that are discriminative and less prone to over-fitting. In this thesis, we show how Seg-SVMs outperform state-of-the-art approaches for segmenting, classifying, and clustering human and animal behavior in video and accelerometer data of varying complexity. We illustrate these benefits in the problems of facial event detection, sequence labeling of human actions, and temporal clustering of animal behavior. In addition, the Seg-SVMs framework naturally provides solutions to two novel problems: early detection of human actions and weakly-supervised discovery of discriminative events.
Tidally induced morphology of M33 in hydrodynamical simulations of its recent interaction with M31
Creators: name: Semczuk, Marcin
name: Lokas, Ewa L.
name: Salomon, Jean-Baptiste
name: Athanassoula, E.
name: D'Onghia, Elena
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a hydrodynamical model of M33 and its recent interaction with M31. This scenario was previously proposed in the literature in order to explain the distorted gaseous and stellar disks of M33, as well as the increased star formation rate in both objects around 2 Gyr ago. We used an orbit integration scheme to find which estimate of the transverse velocity of M31 more favors the interaction scenario and then tried to reproduce it in our simulations. M33 was modeled as a stellar and gaseous disk embedded in a live dark-matter halo, while M31 was approximated only with a live dark halo. In the simulations the two galaxies passed each other with a pericenter distance of 37 kpc. Tides excited a two-armed spiral structure in the M33 disk, which is found to be the predominant spiral signal in the observed galaxy and has been long known as a feature easily induced by tidal interactions. We found that the gaseous warp produced by the interaction did not resemble enough the observed one and we performed an additional simulation including the hot gas halo of M31 to show that this feature can be properly reproduced by tidal forces and ram pressure stripping acting simultaneously on the gaseous disk. In addition to the spiral arms, tidal forces produced the stellar stream similar to the observed one and triggered a star formation burst at similar radii as it is observed.
description: 22 pages, 17 figures, accepted for publication in ApJ
Additional file 1: of Mural cell-derived laminin-α5 plays a detrimental role in ischemic stroke
Creators: name: Nirwane, Abhijit
name: Johnson, Jessica
name: Nguyen, Benjamin
name: Miner, Jeffrey
name: Yao, Yao
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Medicine
subject: Molecular Biology
subject: Neuroscience
subject: Pharmacology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Hematology

description: Table S1. Modified Neurologic Severity Scores (mNSS) system. Figure S1. Angioarchitecture is unaltered in α5-PKO mice under homeostatic conditions. Figure S2. Spatial distribution of infarct area in control and α5-PKO mice at day 1 after ischemic injury. Figure S3. Comparison of gender-specific effects in control and α5-PKO mice after ischemic stroke. Figure S4. α5-PKO mice show reduced neuronal death in both penumbra and ischemic core after ischemic stroke. Figure S5. α5-PKO mice have reduced inflammatory cell infiltration after ischemic stroke. Figure S6. α5-PKO mice have reduced brain water content after ischemic stroke. (DOCX 2830 kb)
Finite size effects on spin-torque driven ferromagnetic resonance in spin-valves with a Co/Ni synthetic free layer
Creators: name: Chen, W.
name: de Loubens, G.
name: Beaujour, J-M. L.
name: Kent, A. D.
name: Sun, J. Z.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Spin-torque driven ferromagnetic resonance (ST-FMR) is used to study magnetic excitations in Co/Ni synthetic layers confined in nanojunctions. Field swept ST-FMR measurements were conducted with a magnetic field applied perpendicular to the layer surface. The resonance lines were measured under low amplitude excitation in a linear response regime. The resulting resonance fields were compared with those obtained using conventional rf field driven FMR on extended films with the same Co/Ni layer structure. A lower resonance field is found in confined structures. The effect of both dipolar fields acting on the Co/Ni layer emanating from other magnetic layers in the device and finite size effects on the spin wave spectrum are discussed.
description: 3 pages, 3 figures
Participation in a mobile app survey to collect expenditure data as part of a large-scale probability household panel: coverage and participation rates and biases
Creators: name: Jäckle, Annette
name: Burton, Jonathan
name: Couper, Mick P.
name: Lessof, Carli
Publisher: name: European Survey Research Association
Year: 2019
Subjects: mobile app, scanning, finances

description: This paper examines non-response in a mobile app study designed to collect expenditure data. We invited 2,383 members of the nationally representative Understanding Society Innovation Panel in Great Britain to download an app to record their spending on goods and services: participants were asked to scan receipts or report spending directly in the app every day for a month. We examine participation at different stages of the process. We further use data from the prior wave of the panel to examine the prevalence of potential barriers to participation, including access, ability and willingness to use different mobile technologies, and biases in the types of people who participate, considering socio-demographic characteristics, financial position and financial behaviours. While the participation rate was low, drop out was also low: over 80% of participants remained in the study for the full month. The main barriers to participation were access to, and frequency of use of mobile devices, willingness to download an app for a survey, and general cooperativeness with the survey. While there were strong biases in who participated in terms of socio-demographic characteristics (with women, younger, and more educated sample members being more likely to participate), and in terms of financial behaviours (with respondents who already use mobile devices to monitor their finances being more likely to participate), we found no biases in correlates of spending.
description: Survey Research Methods, Vol 13, No 1 (2019)
Ising Spin Glass in a Transverse Magnetic Field
Creators: name: Boechat, Beatriz
name: Santos, Raimundo R. dos
name: Continentino, M. A.
Publisher: name: arXiv
Year: 1993
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We study the three-dimensional quantum Ising spin glass in a transverse magnetic field following the evolution of the bond probability distribution under Renormalisation Group transformations. The phase diagram (critical temperature $T_c$ {\em vs} transverse field $Γ$) we obtain shows a finite slope near $T=0$, in contrast with the infinite slope for the pure case. Our results compare very well with the experimental data recently obtained for the dipolar Ising spin glass LiHo$_{0.167}$Y$_{0.833}$F$_4$, in a transverse field. This indicates that this system is more apropriately described by a model with short range interactions than by an equivalent Sherrington-Kirkpatrick model in a transverse field.
description: 7 pages, RevTeX3, Nota Cientifica PUC-Rio 23/91
Concerning the Double Scaling Limit in the $O(N)$ Vector Model in Four-Dimensions
Creators: name: Schnitzer, Howard J.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The 1/N expansion for the O(N) vector model in four dimensions is reconsidered. It is emphasized that the effective potential for this model becomes everywhere complex just at the critical point, which signals an unstable vacuum. Thus a critical O(N) vector model cannot be consistently defined in the 1/N expansion for four-dimensions, which makes the existence of a double-scaling limit for this theory doubtful.
description: 6, BRX-TH-333
Charakterisierung, Modellentwicklung und Simulation von mehrschichtigen Brenngaselektroden in Festoxid-Brennstoffzellen
Creators: name: Dierickx, Sebastian
Publisher: name: KIT Scientific Publishing
Year: 2019
Subjects: SOFC
Cermet Anode
Elektrochemische Impedanzspektroskopie
Kettenleitermodell
Schwefelvergiftung
Cermet anode
Electrochemical impedance spectroscopy
Transmission line model
Sulfur poisoning

description: Essentiell für die Kommerzialisierung der Festoxid-Brennstoffzelle ist eine Leistungsoptimierung der Brenngaselektrode, die aus zwei porösen Schichten mit unterschiedlichen Mikrostruktur- und Materialeigenschaften aufgebaut ist. In dieser Arbeit wird ein Ersatzschaltbild-basiertes Modell zur Prädiktion des dynamischen Verhaltens mehrschichtiger Elektroden vorgestellt, das alle Verlustprozesse in den Elektrodenschichten abbildet und den Einfluss des Elektrodendesigns berücksichtigt.
Non-conservative mass transfer in stellar evolution and the case of V404 Cyg/GS 2023+338
Creators: name: Ziółkowski, Janusz
name: Zdziarski, Andrzej A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We consider donor evolution and mass transfer in the microquasar V404 Cyg/GS 2023+338. Based on X-ray observations of its two outbursts, its average mass accretion rate is substantially lower than our model mass-loss rate from its low-mass giant donor. A likely solution to this discrepancy is that a large fraction of the mass flowing from the donor leaves the binary in the form of outflows from the accretion disc around the accretor. The outflow can be parameterizes by the fractions of the mass and angular momentum leaving the system. We calculate the latter as a function of the radius of the accretion disc from which the outflow takes place. We then perform detailed evolutionary calculations for V404 Cyg. Given our estimated average accretion rate, $>$70 per cent of the mass lost from the donor has to leave the binary. The allowed solutions for the actual donor mass loss rate are parameterized by our two outflow parameters. Our results are in agreement with the observed outflows from the outer disc as well as with the variable near-Eddington accretion observed during the outbursts, compatible with outflows from the vicinity of the black hole. We then calculate the expected rate of the orbital period change. Its future measurements can constrain the presence of an outflow in V404 Cyg and its parameters.
description: MNRAS, in press, 7 pages
Open Science Practices for Teams (Prepare)
Creators: name: Stall, Shelley
name: Specht, Alison
name: O'Brien, Margaret
name: Machicao, Jeaneth
name: Corrêa, Pedro Luiz Pizzigatti
name: David, Romain
name: Edmunds, Rorie
name: Miyairi, Nobuko
name: Murayama, Yasuhiro
name: Santos, Solange
name: Wyborn, Lesley
name: Vellenich, Danton Ferreira
name: Vrouwenvelder, Kristina
name: Mabile, Laurence
Publisher: name: Zenodo
Year: 2023
Subjects: Open Science
Trust
Transparency
Responsibility
Communication
Sharing

description: Improve your team’s open practices. Codify these practices in your team’s Code of Open Science Practice. 

How to encourage open behaviors with your research team such as collaboration, transparency, and working openly.

Which responsibilities and tasks to assign for open science. 

How to establish consistent communication that facilitates common understanding and flexibility. 

What and how to share your digital objects openly.

__________________________

This guideline in: English, French, Japanese (link pending), Portuguese, Spanish 

Your Journey to Open Science in: English, French, Japanese, Portuguese, Spanish

List of all available checklists: 

For researchers:

Digital Presence Checklist

Data Documentation and Citation Checklist

Software Documentation and Citation Checklist

For research teams:

Open Science Practices for Teams (Prepare)

Open Science Resources and Guidance for Teams (Equip)

Digital Objects Preservation Checklist for Teams (Preserve)

This work is part of the Building New Tools for Data Sharing and Re-use through a Transnational Investigation of the Socioeconomic Impacts of Protected Areas (PARSEC) project with funding provided by the Belmont Forum through the National Science Foundation, NSF, Grant 1929464, (US), Agence Nationale de la Recherche, ANR (France), Fundação de Amparo à Pesquisa do Estado de São Paulo, FAPESP (Brazil), and Japan Science and Technology Agency, JST (Japan).

Version 2 includes minor text updates adding clarification, updated links, and funder logos.
Inhalation Capsule Doser – Conserving Test Article in Small Scale Inhalation Exposures
Creators: name: Moore, Simon
name: Goodway, Roger
name: Hardy, Colin
name: Coombs, Derek
name: Allen, Andrew
name: Cracknell, Stuart
name: Paul, Graham
name: Somers, Graham
name: Smith, Alison
name: Taylor, Anthony
name: Sparrow, Susan
name: Hassall, David
Publisher: name: F1000 Research Limited
Year: 2019

description: GSK and Covance (formerly HLS) have collaborated to identify methods of aerosol generation that minimise test article usage for small scale screening studies in rodents. Following a review of available powder generators, the HLS capsule doser was selected for further evaluation and refinement. Capsules containing 0.1 or 1.0 mg of undiluted test article or 40% lactose powder blend were prepared. Using blended or undiluted 1 mg formulation capsules, generated aerosol concentrations (AC) of 8.08 and 26.0 μg/L respectively. Replicate trials using capsule containing 0.1 mg of undiluted test article gave mean AC of 0.698 and 0.628 μg/L. AC were consistent (%CV <12%) throughout generation periods. The analytical mass median aerodynamic diameters (MMAD) were between 2.3 and 2.5 μm and consistent with commercially available powder generators. The gravimetric MMAD was 3.1 μm for the blended test article reflecting the presence of larger lactose particles.

Chemical analysis of representative 0.1 and 1 mg fill capsules indicated that achieved mean mass of dispensed test article was in good agreement with the nominal fill weights (<1% from target), however, greater variability was evident for the blended and 0.1 mg capsules (<9%).

The generation efficiencies for the capsule doser (mass aerosol concentration/(mass ejected/system airflow)were lower (6-20%) than those typically achieved using commercially available powder generators (40%). However, overall projected compound usage for studies up to 10 days, at comparable AC, was significantly lower due to the elimination of the generator dead space losses associated with these devices. For example, to achieve a target dose of 0.3 mg/kg/day, the capsule doser would require only 40 mg compared with >1g for either a Rotating Brush Generator (RBG) or Wright Dust Feed Generator (WDF).

The HLS capsule doser provides consistent AC and reduced compound usage compared with other commercially available technologies.

Subsequently, it was re-engineered to decrease usage still further to conduct small scale rodent studies and has been successful in doing so.
Response Theory for Equilibrium and Non-Equilibrium Statistical Mechanics: Causality and Generalized Kramers-Kronig relations
Creators: name: Lucarini, Valerio
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mathematical Physics (math-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We consider the general response theory proposed by Ruelle for describing the impact of small perturbations to the non-equilibrium steady states resulting from Axiom A dynamical systems. We show that the causality of the response functions allows for writing a set of Kramers-Kronig relations for the corresponding susceptibilities at all orders of nonlinearity. Nonetheless, only a special class of observable susceptibilities obey Kramers-Kronig relations. Specific results are provided for arbitrary order harmonic response, which allows for a very comprehensive Kramers-Kronig analysis and the establishment of sum rules connecting the asymptotic behavior of the susceptibility to the short-time response of the system. These results generalize previous findings on optical Hamiltonian systems and simple mechanical models, and shed light on the general impact of considering the principle of causality for testing self-consistency: the described dispersion relations constitute unavoidable benchmarks for any experimental and model generated dataset. In order to connect the response theory for equilibrium and non equilibrium systems, we rewrite the classical results by Kubo so that response functions formally identical to those proposed by Ruelle, apart from the measure involved in the phase space integration, are obtained. We briefly discuss how these results, taking into account the chaotic hypothesis, might be relevant for climate research. In particular, whereas the fluctuation-dissipation theorem does not work for non-equilibrium systems, because of the non-equivalence between internal and external fluctuations, Kramers-Kronig relations might be more robust tools for the definition of a self-consistent theory of climate change.
description: 22 pages
Hopf algebras of dimension 16
Creators: name: Garcia, Gaston Andres
name: Vay, Cristian
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Algebra (math.QA)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 16w30

description: We complete the classification of Hopf algebras of dimension 16 over an algebraically closed field of characteristic zero. We show that a non-semisimple Hopf algebra of dimension 16, has either the Chevalley property or its dual is pointed.
description: 23 pages
Emergence of oscillatory behaviors for excitable systems with noise and mean-field interaction, a slow-fast dynamics approach
Creators: name: Lucon, Eric
name: Poquet, Christophe
Publisher: name: arXiv
Year: 2018
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: Dynamical Systems (math.DS)
subject: Probability (math.PR)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 60K35, 35K55, 35Q84, 37N25, 82C26, 82C31, 92B20

description: We consider the long-time dynamics of a general class of nonlinear Fokker-Planck equations, describing the large population behavior of mean-field interacting units. The main motivation of this work concerns the case where the individual dynamics is excitable, i.e. when each isolated dynamics rests in a stable state, whereas a sufficiently strong perturbation induces a large excursion in the phase space. We address the question of the emergence of oscillatory behaviors induced by noise and interaction in such systems. We tackle this problem by considering this model as a slow-fast system (the mean value of the process giving the slow dynamics) in the regime of small individual dynamics and by proving the existence of a positively stable invariant manifold, whose slow dynamics is at first order the dynamics of a single individual averaged with a Gaussian kernel. We consider applications of this result to Stuart-Landau, FitzHugh-Nagumo and Cucker-Smale oscillators.
description: 53 pages, 8 figures. V2: some references and application to the Cucker-Smale model added
Secondary Structure Models of Nucleic Acid Folding Kinetics
Creators: name: Sauerwine, Benjamin Adair
Publisher: name: Carnegie Mellon University
Year: 2011
Subjects: subject: 20399 Classical Physics not elsewhere classified
subject: FOS: Physical sciences

description: This thesis examines nucleic acid folding processes using secondary structure models, which have the advantage that they may simulate behavior at long timescales. First, it verifies that Kinetic Monte Carlo can reproduce known behavior of biological riboswitches. Motivated by the results of that study, a new and general method for determining the effective barrier between local free energy minima is introduced. Finally, a general rate model is developed that greatly improves simulated agreement with measured dynamic properties by considering the energy of intermediates outside the state space of secondary structure.
Addendum to ``Integrability of Open Spin Chains with Quantum Algebra Symmetry''
Creators: name: Mezincescu, Luca
name: Nepomechie, Rafael I.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that the quantum-algebra-invariant open spin chains associated with the affine Lie algebras $A^{(1)}_n$ for $n>1$ are integrable. The argument, which applies to a large class of other quantum-algebra-invariant chains, does not require that the corresponding $R$ matrix have crossing symmetry.
description: 4 pages, plain tex, UMTG-167
Analytical solution for the Fermi-sea energy of two-dimensional electrons in a magnetic field: lattice path-integral approach and quantum interference
Creators: name: Nori, Franco
name: Lin, Yeong-Lieh
Publisher: name: arXiv
Year: 1993
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We derive an exact solution for the total kinetic energy of noninteracting spinless electrons at half-filling in two-dimensional bipartite lattices. We employ a conceptually novel approach that maps this problem exactly into a Feynman-Vdovichenko lattice walker. The problem is then reduced to the analytic study of the sum of magnetic phase factors on closed paths. We compare our results with the ones obtained through numerical calculations.
description: 5 pages, RevTex
Entanglement Features of Random Hamiltonian Dynamics
Creators: name: You, Yi-Zhuang
name: Gu, Yingfei
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We introduce the concept of entanglement features of unitary gates, as a collection of exponentiated entanglement entropies over all bipartitions of input and output channels. We obtained the general formula for time-dependent $n$th-Renyi entanglement features for unitary gates generated by random Hamiltonian. In particular, we propose an Ising formulation for the 2nd-Renyi entanglement features of random Hamiltonian dynamics, which admits a holographic tensor network interpretation. As a general description of entanglement properties, we show that the entanglement features can be applied to several dynamical measures of thermalization, including the out-of-time-order correlation and the entanglement growth after a quantum quench. We also analyze the Yoshida-Kitaev probabilistic protocol for random Hamiltonian dynamics.
description: 15 pages, 10 figures
Model-Independent Bottom Baryon Mass Predictions in the 1/N Expansion
Creators: name: Jenkins, Elizabeth
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Recent discoveries of the Xi_b, Sigma_b and Sigma_b^* baryons at the Tevatron are in good agreement with model-independent mass predictions made a decade ago based on a combined expansion in 1/N_c, 1/m_Q and SU(3) flavor symmetry breaking. Using the new experimental data as input, mass predictions for the undiscovered bottom baryons Xi_b^\prime, Xi_b^*, Omega_b and Omega_b^* and for many unmeasured bottom baryon mass splittings are updated. The observed ground state charm baryons exhibit the mass hierarchy previously predicted by the 1/N_c, 1/m_Q and SU(3) flavor breaking expansion.
description: 15 pages
Magnetic resonance as a local probe for kagomé magnetism in Barlowite Cu$_4$(OH)$_6$FBr
Creators: name: Ranjith, K. M.
name: Klein, C.
name: Tsirlin, A. A.
name: Rosner, H.
name: Krellner, C.
name: Baenitz, M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Temperature- and field- dependent $^1$H-, $^{19}$F-, and $^{79,81}$Br- NMR measurements together with zero - field $^{79,81}$Br-NQR measurements on polycrystalline samples of barlowite, Cu$_4$(OH)$_6$FBr are conducted to study the magnetism and possible structural distortions on a microscopic level. The temperature dependence of the $^{79,81}$Br- NMR spin-lattice relaxation rates 1/$T_1$ indicate a phase transition at $T_{\rm N}\simeq$15 K which is of magnetic origin, but with an unusually weak slowing down of fluctuations below $T_{\rm N}$. Moreover, 1/$T_1T$ scales linear with the bulk susceptibility which indicates persisting spin fluctuations down to 2 K. Quadupolare resonance (NQR) studies reveal a pair of zero-field NQR- lines associated with the two isotopes of Br with the nuclear spins of $I$ = 3/2. Quadrupole coupling constants of $ν_Q\simeq$ 28.5~MHz and 24.7~MHz for $^{79}$Br- and $^{81}$Br- nuclei are determined from Br-NMR and the asymmetry parameter of the electric field gradient was estimated to $η\simeq 0.2$. The Br-NQR lines are consistent with our findings from Br-NMR and they are relatively broad, even above $T_{\rm N}$. This broadening and the relative large $η$ value suggests a symmetry reduction at the Br- site reflecting the presence of a local distortion in the lattice. Our density-functional calculations show that the displacements of Cu2 atoms located between the kagome planes do not account for this relatively large $η$. On the other hand, full structural relaxation, including the deformation of kagome planes, leads to a better agreement with the experiment.
title: ÐÑÐ¾ÐµÐºÑ Ð±Ð»Ð°Ð³Ð¾ÑÑÑÑÐ¾Ð¹ÑÑÐ²Ð° ÑÐµÑÑÐ¸ÑÐ¾ÑÐ¸Ð¸ ÐºÐ¾ÑÑÐµÐ´Ð¶Ð½Ð¾Ð³Ð¾ Ð¿Ð¾ÑÐµÐ»ÐºÐ° "ÐÑÐ¾ÑÑÐ¾ÐºÐ²Ð°ÑÐ¸Ð½Ð¾"
title: Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ°Ñ ÑÐ°Ð±Ð¾ÑÐ°
titleType: Subtitle
Creators: name: ÐÑÑÐ°Ð¼Ð°Ð½Ð¾Ð²Ð°, ÐÐ°ÑÑÑ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2016
Subjects: ÐÐ¸Ð»ÑÐµ Ð·Ð´Ð°Ð½Ð¸Ñ Ð¼Ð°Ð»Ð¾ÑÑÐ°Ð¶Ð½ÑÐµ
Ð ÐµÐ»ÑÐµÑ Ð·ÐµÐ¼Ð½Ð¾Ð¹ Ð¿Ð¾Ð²ÐµÑÑ Ð½Ð¾ÑÑÐ¸
ÐÐ¾Ð´Ð¾ÑÑÐ¾ÐºÐ¸
ÐÑÐµÐ½Ð°Ð¶
ÐºÐ¾ÑÑÐµÐ´Ð¶Ð½ÑÐ¹ Ð¿Ð¾ÑÐµÐ»Ð¾Ðº
Ð´ÑÐµÐ½Ð°Ð¶Ð½Ð°Ñ ÑÐ¸ÑÑÐµÐ¼Ñ
low-rise residential buildings
provision of relief
storm sewer systems
drainage arrangement
cottage settlement

description: ÐÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¿Ð¾ Ð±Ð»Ð°Ð³Ð¾ÑÑÑÑÐ¾Ð¹ÑÑÐ²Ñ ÑÐµÑÑÐ¸ÑÐ¾ÑÐ¸Ð¸ ÐºÐ¾ÑÑÐµÐ´Ð¶Ð½Ð¾Ð³Ð¾ Ð¿Ð¾ÑÐµÐ»ÐºÐ° Ð·Ð°ÑÑÐ°Ð³Ð¸Ð²Ð°ÐµÑ ÑÐ»ÐµÐ´ÑÑÑÐ¸Ðµ Ð°ÑÐ¿ÐµÐºÑÑ: 1) Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ñ ÑÐµÐ»ÑÐµÑÐ° ÑÐµÑÑÐ¸ÑÐ¾ÑÐ¸Ð¸ ÐºÐ¾ÑÑÐµÐ´Ð¶Ð½Ð¾Ð³Ð¾ Ð¿Ð¾ÑÐµÐ»ÐºÐ°; 2)Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ñ Ð»Ð¸Ð²Ð½ÐµÐ²Ð¾Ð¹ ÐºÐ°Ð½Ð°Ð»Ð¸Ð·Ð°ÑÐ¸Ð¸ ÐºÐ¾ÑÑÐµÐ´Ð¶Ð½Ð¾Ð³Ð¾ Ð¿Ð¾ÑÐµÐ»ÐºÐ°; 3) Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ñ Ð´ÑÐµÐ½Ð°Ð¶Ð½Ð¾Ð¹ ÑÐ¸ÑÑÐµÐ¼Ñ ÐºÐ¾ÑÑÐµÐ´Ð¶Ð½Ð¾Ð³Ð¾ Ð¿Ð¾ÑÐµÐ»ÐºÐ°; 4) ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ðµ Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¸ ÑÐµÑÑÐ¸ÑÐ¾ÑÐ¸Ð¸ Ð´Ð²ÑÑ ÑÑÐ°ÑÑÐºÐ¾Ð² Ñ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÐ¼ ÑÐµÐ»ÑÐµÑÐ¾Ð¼. ÐÑÐµ ÑÐµÑÑÐµÐ¶Ð¸ Ð²ÑÐ¿Ð¾Ð»Ð½ÑÐ»Ð¸ÑÑ Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ ÑÐ¸ÑÑÐµÐ¼Ñ Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ð³Ð¾ Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ (Ð¡ÐÐÐ ) AutoCAD 2014 ÐºÐ¾Ð¼Ð¿Ð°Ð½Ð¸Ð¸ Autodesk.
description: Graduate qualification work on urban landscaping of the cottage settlement includes following aspects: 1) the provision of cottage settlement's relief; 2) the provision of cottage settlement's storm sewer system; 3) the provision of cottage settlement's drainage arrangement; 4) the compare topography arrangement of two plots with different relief. All drawings were made with the help of computer-aided design (CAD) AutoCAD 2014 company Autodesk.
Open Science Resources and Guidance for Teams (Equip)
Creators: name: Stall, Shelley
name: Specht, Alison
name: O'Brien, Margaret
name: Machicao, Jeaneth
name: Corrêa, Pedro Luiz Pizzigatti
name: David, Romain
name: Edmunds, Rorie
name: Miyairi, Nobuko
name: Murayama, Yasuhiro
name: Santos, Solange
name: Wyborn, Lesley
name: Vellenich, Danton Ferreira
name: Vrouwenvelder, Kristina
name: Mabile, Laurence
Publisher: name: Zenodo
Year: 2023
Subjects: Open Science
Common Resources
Milestones
Preservation
Experience Feedback
Credit
Recognition

description: Streamline your team’s research needs with resources that ensure they are as efficient, collaborative and open as possible.

How to establish common team resources and digital object registry.

How to manage and track your team’s digital objects.

How to ensure equitable team contributions to research outputs and provide appropriate credit.

__________________________

This guideline in: English, French, Japanese (link pending), Portuguese, Spanish 

Your Journey to Open Science in: English, French, Japanese, Portuguese, Spanish

List of all available checklists: 

For researchers:

Digital Presence Checklist

Data Documentation and Citation Checklist

Software Documentation and Citation Checklist

For research teams:

Open Science Practices for Teams (Prepare)

Open Science Resources and Guidance for Teams (Equip)

Digital Objects Preservation Checklist for Teams (Preserve)

This work is part of the Building New Tools for Data Sharing and Re-use through a Transnational Investigation of the Socioeconomic Impacts of Protected Areas (PARSEC) project with funding provided by the Belmont Forum through the National Science Foundation, NSF, Grant 1929464, (US), Agence Nationale de la Recherche, ANR (France), Fundação de Amparo à Pesquisa do Estado de São Paulo, FAPESP (Brazil), and Japan Science and Technology Agency, JST (Japan).

Version 2 includes minor text updates adding clarification, updated links, and funder logos.
Conformally Exact Results for SL(2,R)\times SO(1,1)^{d-2}/SO(1,1) Coset Models
Creators: name: Sfetsos, Konstadinos
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Using the conformal invariance of the $SL(2,R)\otimes SO(1,1)^{d-2}/SO(1,1)$ coset models we calculate the conformally exact metric and dilaton, to all orders in the $1/k$ expansion. We consider both vector and axial gauging. We find that these cosets represent two different space--time geometries: ($2d$ black hole)$\otimes \IR^{d-2}$ for the vector gauging and ($3d$ black string)$\otimes \IR^{d-3}$ for the axial one. In particular for $d=3$ and for the axial gauging one obtains the exact metric and dilaton of the charged black string model introduced by Horne and Horowitz. If the value of $k$ is finite we find two curvature singularities which degenerate to one in the semi--classical $k\to \infty$ limit. We also calculate the reflection and transmission coefficients for the scattering of a tachyon wave and using the Bogoliubov transformation we find the Hawking temperature.
description: USC-92/HEP-S1, 21 pages
Horndeski dark matter and beyond
Creators: name: Diez-Tejedor, Alberto
name: Flores, Francisco
name: Niz, Gustavo
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Starting from the Gleyzes-Langlois-Piazza-Vernizzi action, we derive the most general effective theory that is invariant under internal shifts and a $\mathbb{Z}_2$ mirror symmetry in the scalar sector. Contrary to what one may think, this model presents a dark matter tracker previous to the dark energy domination. We show that, in an empty universe and to linear order in perturbations, the scalar mode clusters in exactly the same way as standard nonrelativistic cold dark matter. This also holds for the subsector of the theory where the speed of propagation of gravitational waves equals that of light, in agreement with the recent multimessenger observation. However, the inclusion of standard model particles introduces nontrivial couplings of the gravitational scalar mode to baryons, modifying their clustering properties. We argue that no arrangement of the parameters of the model can reduce the extra scalar to precisely behave as cold dark matter.
description: 11 pages, no figures. To appear in Phys. Rev. D
title: A Description and Analysis of the Timing of Virginia's Weakfish Fishery
Creators: name: Hill, Bruce William
Publisher: name: Old Dominion University
publisherIdentifier: https://ror.org/04zjtrb98
publisherIdentifierScheme: ROR
Year: 1984

description: The seasonality of Virginia's weakfish fishery is quantitatively defined by providing a mean time of catch and variance of catch for the years 1960 - 1981. On the average. the central half of the population is available for harvest from mid-May through September in all of Virginia's waters and the mean date of harvest is July 20th • The 22 year average variance of catch for Virginia's waters is 3.97. In Virginia's Chesapeake Bay tributaries the mean date of harvest is July 17th and the 22 year average variance of catch is 2.50. There is evidence for an inverse relationship between the mean date of harvest and variance of catch for both Chesapeake Bay tributaries and all of Virginia's waters. In Virginia's waters only. the variance of catch is proportional to the magnitude of harvest. The average semi-annual price per pound does not appear to be related to the mean day of catch.
Declaración UNIR para un uso ético de la Inteligencia Artificial en Educación Superior
Creators: name: Burgos, Daniel
Publisher: name: Proeduca
Year: 2023
Subjects: artificial intelligence
higher education
ethics

description: Esta declaración tiene como objetivo sentar unas bases de consenso que guíen a todos los actores que forman parte del grupo (profesores, estudiantes, personal de gestión, junta de gobierno, investigadores, etc.) en el uso, aplicación, e incluso desarrollo de soluciones basadas en IA. Inicialmente, se proporciona una definición de IA de manera general, así como sus aplicaciones más actuales. A continuación, se comentan varias aplicaciones interesantes (pero también de riesgo) de la misma. Por último, se esboza el papel de UNIR a la hora de tratar de convertirse en un modelo de referencia para la aplicación de normativas mundiales sobre IA o cualquier otra tecnología que genere un reto social, a través de su ecosistema centrado en los estudiantes.
Suppression of the horizon effect in pairing correlation functions of $t$-$J$ chains after a quantum quench
Creators: name: Kühn, A. D.
name: Cevolani, L.
name: Manmana, S. R.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the time evolution of density, spin, and pairing correlation functions in one-dimensional $t$-$J$ models following a quantum quench using the time-dependent density matrix renormalization group (tDMRG). While density and spin correlation functions show the typical light-cone behavior over a wide range of parameters, in pairing correlation functions it is strongly suppressed. This is supported by time-dependent BCS theory, where the light-cone in the pairing correlation functions is found to be at least two orders of magnitude weaker than in the density correlator. These findings indicate that in global quantum quenches not all observables are affected by the excitations equally.
description: 12 pages, 19 figures
IN03062 Jētavanārāma Slab Inscription 2 of Mahinda IV
Creators: name: Wickremasinghe, Don Martino de Zilva
Publisher: name: Zenodo
Year: 2019
Subjects: IN03062
Epigraphia Zeylanica
Jētavanārāma
Mahinda IV

description: IN03062 Jētavanārāma Slab Inscription 2 of Mahinda IV - Transcript and Translation Source: Wickremasinghe, Don Martino de Zilva. (1904-12). ‘No. 20. Jētavanārāma Slab-Inscription (No. 2) of Mahinda IV (circa 1026-1042 A.D.),’ Epigraphia Zeylanica 1, pp. 230-241.
A Blaschke-type condition and its application to complex Jacobi matrices
Creators: name: Borichev, A.
name: Golinskii, L.
name: Kupin, S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 30C15, 47B36

description: We obtain a Blaschke-type necessary conditions on zeros of analytic functions on the unit disk with different types of exponential growth at the boundary. These conditions are used to prove Lieb-Thirring-type inequalities for the eigenvalues of complex Jacobi matrices.
description: a detailed preliminary version; a shorter version is available upon request
Using spectrum allocations to address indigenous policy obligations: the case of New Zealand
Creators: name: Howell, Bronwyn
name: Tang, Xin
Publisher: name: Open Access Te Herenga Waka-Victoria University of Wellington
Year: 2022
Subjects: classificationCode: 460608
subject: Mobile computing
classificationCode: 440701
subject: Communications and media policy

description: Radio spectrum is fundamental to the operation of wireless communications services. In order to allocate radio spectrum for different services, spectrum is regulated via national laws, coordinated by an international body, the International Telecommunications Union (ITU). For the most part, national (state) governments undertake the legal definition and allocation of spectrum. The most common method of allocation is auction, where competing parties bid for the rights to use specific bundles of spectrum, ensuring that the spectrum goes to the users and uses where it is most commercially valuable (Crandall, 1998). Alternatively it is 'gifted' to winners of a 'beauty contest' using predetermined government-specified criteria in order to meet other policy objectives (Prat & Valletti, 2000). Sometimes, spectrum can be reserved for particular government policies or other redistributive agendas (Howell & Potgieter, 2022). In February 2022, the New Zealand Government announced that a yet-to-be-formed 'Māori Spectrum Entity' would “receive an ongoing allocation of 20 percent of future national commercial spectrum allocations, at no cost.” This is in addition to the 25 percent of spectrum designated for 5G technology (mid-band, 3.4-3.8GHz) under the Māori Spectrum Working Group agreement. The policy is novel as it creates a perpetual obligation rather than simply a one-off transfer. The Māori people are the indigenous people in New Zealand. The 1840 Treaty of Waitangi signed between the British Crown and Māori tribal leaders granted the tribes “exclusive and undisturbed possession of their lands and estates, forests, fisheries and other properties.” (Te Ara, 2022). Māori tribal leaders have asserted that since they exercised control over the air above their lands in 1840, they are entitled to a share of the spectrum within it. This controversial claim was supported by a Waitangi Tribunal (special court) hearing (Wai 776, 1999). Further support for the policy derives from New Zealand’s obligations as a signatory to the United Nations Declaration on the Rights of Indigenous Peoples. In this paper, we use comparative policy analysis to examine perpetual allocation of spectrum at no cost to tribal interests while at the same time selling spectrum at positive cost to industry parties, against the espoused objectives of both industry and other policies. While wealth and control is transferred from the Crown to the tribal entity, meeting various legal treaty obligations, it is not clear that the tribal entity faces the same incentives as the firms paying positive sums to deploy the spectrum in the most socially-useful manner. That is, meeting legal obligations may abrogate economic ones.