cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Auditory enrichment for arousal reduction in non-vocal learning species
Creators: name: Mott, Richard Owen
Publisher: name: University of Glasgow
Year: 2023

description: Passively listening to music and other auditory enrichments has been repeatedly demonstrated to be effective at reducing physiological arousal in a wide range of non-human species. Although statistically significant arousal reduction has been demonstrated, the size of this effect in most studies is generally small. To strengthen the previously demonstrated arousal-reducing effects of auditory enrichment, the aims of this thesis are: To understand what specific aspects of auditory enrichment have the greatest influence on arousal in dogs and horses. To determine if dogs have the auditory perceptive abilities that justify any assumptions of musical appreciation. To establish if a positive association with specific music can influence how that music can manipulate arousal in dogs. Classical music with the pitch and tempo altered; music based on the owner’s voice; and a range of metronome beats where trialled. Heartrate variability was the primary measure of effect and methods of measurement were validated in both dogs and horses prior to these studies. To test perception, a two-choice go/go selection paradigm was used. Changing the pitch or tempo of music made no difference to the arousal of dogs or horses. Bespoke music based on the owners’ voices had an equivalent effect on arousal in dogs as classical music and white noise. Limited testing of perception in dogs failed to demonstrate any ability to discriminate between different tempos, but the results of forming a positive association were suggestive of an increase in effect. An incidental finding was that auditory enrichment was more effective at reducing arousal when used in a noisy environment than when used in a quiet environment. Auditory enrichment has been demonstrated to have an arousal-reducing effect, however, the arousal-reducing effects of auditory enrichment in nonvocal learners may be stemming from simple mechanisms such as acoustic masking and/or the formation of positive associations.
Playing Games in the Baire Space
Creators: name: Brütsch, Benedikt
name: Thomas, Wolfgang
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: We solve a generalized version of Church's Synthesis Problem where a play is given by a sequence of natural numbers rather than a sequence of bits; so a play is an element of the Baire space rather than of the Cantor space. Two players Input and Output choose natural numbers in alternation to generate a play. We present a natural model of automata ("N-memory automata") equipped with the parity acceptance condition, and we introduce also the corresponding model of "N-memory transducers". We show that solvability of games specified by N-memory automata (i.e., existence of a winning strategy for player Output) is decidable, and that in this case an N-memory transducer can be constructed that implements a winning strategy for player Output.
description: In Proceedings Cassting'16/SynCoP'16, arXiv:1608.00177
Comparing Citizens’ and Employees’ Evaluation of the Roles of Civil Service Reform Program in Building Good Governance in Public Institutions: The Case of Addis Ababa City Government
Creators: name: Getachew, Bizuneh
Publisher: name: African Journal of Leadership and Development
Year: 2020

description: This article comparatively assesses citizens’ and employees’ evaluation of the role of the civil service reform program in building good governance in public institutions of the City Government of Addis Ababa. Both qualitative and quantitative research approaches were followed to generate primary and secondary data through questionnaires, focus group discussion interviews, and document reviews. Primary data were collected through fieldwork from 212 respondents. The result reveals that most public servants believe that civil service reform programs have improved good governance in public sector service delivery. However, the greater majority of surveyed customers believe they have not seen much improvement in public service delivery in the city. The data collected from both categories of respondents indicate that the contribution of the reform in improving accountability, the responsiveness of civil servants, establishing an effective relationship with stakeholders and improving public participation was very limited. Therefore, it is recommended that the city government needs to devise strategies aligned with the existing reforms and follow up on proper implementations of the reforms. In addition, creating proper mechanisms to ensure accountability, transparency, public participation, and effective service delivery could be paramount.
description: African Journal of Leadership and Development, Vol. 5 No. 2 (2020): Public Sector Reform
Orbital selective spin excitations and their impact on superconductivity of LiFe1-xCoxAs
Creators: name: Li, Yu
name: Yin, Zhiping
name: Wang, Xiancheng
name: Tam, David W.
name: Abernathy, D. L.
name: Podlesnyak, A.
name: Zhang, Chenglin
name: Wang, Meng
name: Xing, Lingyi
name: Jin, Changqing
name: Haule, Kristjan
name: Kotliar, Gabriel
name: Maier, Thomas A.
name: Dai, Pengcheng
Publisher: name: arXiv
Year: 2016
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We use neutron scattering to study spin excitations in single crystals of LiFe$_{0.88}$Co$_{0.12}$As, which is located near the boundary of the superconducting phase of LiFe$_{1-x}$Co$_{x}$As and exhibits non-Fermi-liquid behavior indicative of a quantum critical point. By comparing spin excitations of LiFe$_{0.88}$Co$_{0.12}$As with a combined density functional theory (DFT) and dynamical mean field theory (DMFT) calculation, we conclude that wave-vector correlated low energy spin excitations are mostly from the $d_{xy}$ orbitals, while high-energy spin excitations arise from the $d_{yz}$ and $d_{xz}$ orbitals. Unlike most iron pnictides, the strong orbital selective spin excitations in LiFeAs family cannot be described by anisotropic Heisenberg Hamiltonian. While the evolution of low-energy spin excitations of LiFe$_{1-x}$Co$_x$As are consistent with electron-hole Fermi surface nesting condition for the $d_{xy}$ orbital, the reduced superconductivity in LiFe$_{0.88}$Co$_{0.12}$As suggests that Fermi surface nesting conditions for the $d_{yz}$ and $d_{xz}$ orbitals are also important for superconductivity in iron pnictides.
description: 14 pages, 10 figures,Accepted for publication in PRL
Heavy-tailed random walks on complexes of half-lines
Creators: name: Menshikov, Mikhail V.
name: Petritis, Dimitri
name: Wade, Andrew R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60J05 (Primary), 60J10, 60G50 (Secondary)

description: We study a random walk on a complex of finitely many half-lines joined at a common origin; jumps are heavy-tailed and of two types, either one-sided (towards the origin) or two-sided (symmetric). Transmission between half-lines via the origin is governed by an irreducible Markov transition matrix, with associated stationary distribution $μ_k$. If $χ_k$ is $1$ for one-sided half-lines $k$ and $1/2$ for two-sided half-lines, and $α_k$ is the tail exponent of the jumps on half-line $k$, we show that the recurrence classification for the case where all $α_k χ_k \in (0,1)$ is determined by the sign of $\sum_k μ_k \cot ( χ_k πα_k )$. In the case of two half-lines, the model fits naturally on $\mathbb{R}$ and is a version of the oscillating random walk of Kemperman. In that case, the cotangent criterion for recurrence becomes linear in $α_1$ and $α_2$; our general setting exhibits the essential non-linearity in the cotangent criterion. For the general model, we also show existence and non-existence of polynomial moments of return times. Our moments results are sharp (and new) for several cases of the oscillating random walk; they are apparently even new for the case of a homogeneous random walk on $\mathbb{R}$ with symmetric increments of tail exponent $α\in (1,2)$.
description: 35 pages, 2 figures
Limits for the graphene on ferroelectric domain wall p-n-junction rectifier for different regimes of current
Creators: name: Strikha, Maksym V.
name: Morozovska, Anna N.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Here we present the theory of the conductivity of pn junction (pnJ) in graphene channel, placed on ferroelectric substrate, caused by ferroelectric domain wall (FDW) for the case of arbitrary current regime: from ballistic to diffusive one. We calculated the ratio of the pnJ conductions for opposite polarities of voltages, applied to source and drain electrodes of the channel,G+/G- as the function of the graphene channel length L, electron mean free path λ and ferroelectric substrate permittivity. We have demonstrated, that the small values of G+/G-(0.1 and smaller), which correspond to efficient graphene pnJ based rectifier, can be obtained for the ferroelectrics with high and for the ratios of L/λ~1 or smaller. However, for ferroelectrics with extremely high permittivity(relaxor or PbZrxTi1-xO3 with composition x near the morphotropic phase boundary x=0.52) the ratio G+/G- can be essentially smaller then unity for the case of a pronounced diffusive regime of current as well. This makes the ferroelectric substrates with high permittivity excellent candidates for the fabrication of new generation of rectifiers based on the graphene pnJ. Temperature effect on ratio was studied within Landau-Ginzburg-Devonshire approach. We have demonstrated that rectifying properties of the graphene pnJ become better in the vicinity of Curie temperature. However, for the temperatures higher than Curie temperature the rectifying effect vanishes due to the ferroelectric polarization disappearance.
description: 14 pages, 4 figures
Corrugation of relativistic magnetized shock waves
Creators: name: Lemoine, M.
name: Ramos, O.
name: Gremillet, L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: As a shock front interacts with turbulence, it develops corrugation which induces outgoing wave modes in the downstream plasma. For a fast shock wave, the incoming wave modes can either be fast magnetosonic waves originating from downstream, outrunning the shock, or eigenmodes of the upstream plasma drifting through the shock. Using linear perturbation theory in relativistic MHD, this paper provides a general analysis of the corrugation of relativistic magnetized fast shock waves resulting from their interaction with small amplitude disturbances. Transfer functions characterizing the linear response for each of the outgoing modes are calculated as a function of the magnetization of the upstream medium and as a function of the nature of the incoming wave. Interestingly, if the latter is an eigenmode of the upstream plasma, we find that there exists a resonance at which the (linear) response of the shock becomes large or even diverges. This result may have profound consequences on the phenomenology of astrophysical relativistic magnetized shock waves.
description: 14 pages, 9 figures; to appear in ApJ
Two-Buffer Simulation Games
Creators: name: Hutagalung, Milka
name: Hundeshagen, Norbert
name: Kuske, Dietrich
name: Lange, Martin
name: Lozes, Etienne
Publisher: name: arXiv
Year: 2016
Subjects: subject: Formal Languages and Automata Theory (cs.FL)
subject: Computer Science and Game Theory (cs.GT)
subject: FOS: Computer and information sciences

description: We consider simulation games played between Spoiler and Duplicator on two Buchi automata in which the choices made by Spoiler can be buffered by Duplicator in two different buffers before she executes them on her structure. Previous work on such games using a single buffer has shown that they are useful to approximate language inclusion problems. We study the decidability and complexity and show that games with two buffers can be used to approximate corresponding problems on finite transducers, i.e. the inclusion problem for rational relations over infinite words.
description: In Proceedings Cassting'16/SynCoP'16, arXiv:1608.00177
Data Mining Graphene: Correlative Analysis of Structure and Electronic Degrees of Freedom in Graphenic Monolayers with Defects
Creators: name: Ziatdinov, Maxim
name: Fujii, Shintaro
name: Kiguchi, Manabu
name: Enoki, Toshiaki
name: Jesse, Stephen
name: Kalinin, Sergei
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The link between changes in the material crystal structure and its mechanical, electronic, magnetic, and optical functionalities - known as the structure-property relationship - is the cornerstone of the contemporary materials science research. The recent advances in scanning transmission electron and scanning probe microscopies (STEM and SPM) have opened an unprecedented path towards examining the materials structure-property relationships on the single-impurity and atomic-configuration levels. Lacking, however, are the statistics-based approaches for cross-correlation of structure and property variables obtained in different information channels of the STEM and SPM experiments. Here we have designed an approach based on a combination of sliding window fast Fourier transform, Pearson correlation matrix, and linear and kernel canonical correlation, to study a relationship between lattice distortions and electron scattering from SPM data on graphene with defects. Our analysis revealed that the strength of coupling to strain is altered between different scattering channels, which can explain coexistence of several quasiparticle interference patterns in nanoscale regions of interest. In addition, the application of kernel functions allowed us to extract a non-linear component of the relationship between the lattice strain and scattering intensity in graphene. The outlined approach can be further utilized towards analyzing correlations in various multi-modal imaging techniques where the information of interest is spatially distributed and generally has a complex multidimensional nature.
Coherent light in intense spatio-spectral twin beams
Creators: name: Perina, Jan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Intense spatio-spectral twin beams generated in the regime with pump depletion are analyzed applying a suggested quantum model that treats the signal, idler and pump fields in the same way. The model assumes the signal and idler fields in the form of the generalized superposition of signal and noise and reveals nonzero signal coherent components in both fields, contrary to the models developed earlier. The influence of coherent components on the properties of intense twin beams is elucidated. The interference pattern formed in the process of sum-frequency generation and that of the Hong-Ou-Mandel interferometer are shown to be able to experimentally confirm the presence of coherent components.
description: 17 pages, 29 figures
A Web-based Tool for Identifying Strategic Intervention Points in Complex Systems
Creators: name: Moschoyiannis, Sotiris
name: Elia, Nicholas
name: Penn, Alexandra S.
name: Lloyd, David J. B.
name: Knight, Chris
Publisher: name: arXiv
Year: 2016
Subjects: subject: Systems and Control (eess.SY)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Steering a complex system towards a desired outcome is a challenging task. The lack of clarity on the system's exact architecture and the often scarce scientific data upon which to base the operationalisation of the dynamic rules that underpin the interactions between participant entities are two contributing factors. We describe an analytical approach that builds on Fuzzy Cognitive Mapping (FCM) to address the latter and represent the system as a complex network. We apply results from network controllability to address the former and determine minimal control configurations - subsets of factors, or system levers, which comprise points for strategic intervention in steering the system. We have implemented the combination of these techniques in an analytical tool that runs in the browser, and generates all minimal control configurations of a complex network. We demonstrate our approach by reporting on our experience of working alongside industrial, local-government, and NGO stakeholders in the Humber region, UK. Our results are applied to the decision-making process involved in the transition of the region to a bio-based economy.
description: In Proceedings Cassting'16/SynCoP'16, arXiv:1608.00177
Impact of Schwarzschild black hole's gravity upon the Rossby wave instability
Creators: name: Casse, F.
name: Varniere, P.
name: Meliani, Z.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In an early work the Rossby Wave Instability (RWI) has been proposed to explain variability thought to originate in the close vicinity of black-holes but this was done in the pseudo-Newtonian approach. Here we present the first general relativistic hydrodynamics simulations of this instability not only proving its theorized existence in a full general relativistic (GR) environment but also studying the effect of the strong gravity on the instability. To that end we performed a set of simulations increasingly closer to the black hole with our new GR version of the MPI-AMRVAC code.This allows us to study the minute changes in the behaviour of the instability.We found that the pseudo-Newtonian approach gives adequate results provided that time shifting induced by the black hole gravity is taken into account. Hence, to view the disc as a distant observer would a full GR ray-tracing post treatment of the simulations is a must.
description: 10 pages, 11 figures, MNRAS accepted
Advances in solving the two-fermion homogeneous Bethe-Salpeter equation in Minkowski space
Creators: name: de Paula, W.
name: Frederico, T.
name: Salmè, G.
name: Viviani, M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Actual solutions of the Bethe-Salpeter equation for a two-fermion bound system are becoming available directly in Minkowski space, by virtue of a novel technique, based on the so-called Nakanishi integral representation of the Bethe-Salpeter amplitude and improved by expressing the relevant momenta through light-front components, i.e. $k^\pm=k^0 \pm k^3$. We solve a crucial problem that widens the applicability of the method to real situations by providing an analytically exact treatment of the singularities plaguing the two-fermion problem in Minkowski space, irrespective of the complexity of the irreducible Bethe-Salpeter kernel. This paves the way for feasible numerical investigations of relativistic composite systems, with any spin degrees of freedom. We present a thorough comparison with existing numerical results, evaluated in both Minkowski and Euclidean space, fully corroborating our analytical treatment, as well as fresh light-front amplitudes illustrating the potentiality of non perturbative calculations performed directly in Minkowski space.
description: 5 pages, 2 figures
Thematic Spotlight on...Food Security and Climate Change
Creators: name: Apdini, Titis
Publisher: name: Zenodo
Year: 2023
Subjects: food security
climate change
agriculture
Mozambique
Kenya
Madagascar
land-use change
land grabbing
food vs fuel

description: What is food security and what is its link to climate change? With food security once again high on the political agenda, the definition of food security may seem obvious. While sometimes contested, food security is generally defined as existing "when all people, at all times, have physical and economic access to sufficient, safe and nutritious food that meets their dietary needs and food preferences for an active and healthy life” (FAO, 2008). Food security and climate change are intimately linked, as food security can be negatively affected by climate change while richer diets are often associated with higher emissions (Poore & Nemecek, 2018). Future food production will have to deal with high temperatures, drought, increased salinity, damage from extreme events and disruption in supply chains, therefore, having an effect on food security. As a consequence, mitigation of emissions from agriculture and adaptation to climate change will be needed. While food security is negatively affected by climate change, food security scholars also consider how a growing global population with increasing demands for richer diets can be fed while mitigating climate change (Clark et al., 2020). They study the effects of various diets on climate change as well as a range of other measures such as reducing food waste and changing trade policies. Energy production tied to land use can also impact food security and climate change. During the 2008 food price crisis, scientists, policymakers, and civil society hotly debated the so-called ‘’food vs fuel’’ issue (Rosegrant & Msangi, 2014). Today, the connections between energy production, land use and food security are understood to be more nuanced than the simple use of food crops for energy as impacts are affected by markets, geopolitics and land acquisitions (Rosegrant & Msangi, 2014). This thematic piece brings together the key insights and publications of 3 FACCE-JPI projects on the theme of food security and climate change across a diverse set of contexts, namely connecting food production and nutrition for healthier and more sustainable diets, the impact of diets on land-use change and climate change and the impact of large-scale agricultural investments in Mozambique, Kenya and Madagascar on food security.
NaFe$_{0.56}$Cu$_{0.44}$As: A pnictide insulating phase induced by on-site Coulomb interaction
Creators: name: Matt, C. E.
name: Xu, N.
name: Lv, B. Q.
name: Ma, Junzhang
name: Bisti, F.
name: Park, J.
name: Shang, T.
name: Cao, Chongde
name: Song, Yu
name: Nevidomskyy, Andriy H.
name: Dai, Pengcheng
name: Patthey, L.
name: Plumb, N. C.
name: Radovic, M.
name: Mesot, J.
name: Shi, Ming
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In the studies of iron-pnictides, a key question is whether their bad-metal state from which the superconductivity emerges lies in close proximity with a magnetically ordered insulating phase. Recently it was found that at low temperatures, the heavily Cu-doped NaFe$_{1-x}$Cu$_x$As ($x > 0.3$) iron-pnictide is an insulator with long-range antiferromagnetic order, similar to the parent compound of cuprates but distinct from all other iron-pnictides. Using angle-resolved photoemission spectroscopy, we determined the momentum-resolved electronic structure of NaFe$_{1-x}$Cu$_x$As ($x = 0.44$) and identified that its ground state is a narrow-gap insulator. Combining the experimental results with density functional theory (DFT) and DFT+U calculations, our analysis reveals that the on-site Coulombic (Hubbard) and Hund's coupling energies play crucial roles in formation of the band gap about the chemical potential. We propose that at finite temperatures charge carriers are thermally excited from the Cu-As-like valence band into the conduction band, which is of Fe $3d$-like character. With increasing temperature, the number of electrons in the conduction band becomes larger and the hopping energy between Fe sites increases, and finally the long-range antiferromagnetic order is destroyed at $T > T_\mathrm{N}$. Our study provides a basis for investigating the evolution of the electronic structure of a Mott insulator transforming into a bad metallic phase, and eventually forming a superconducting state in iron-pnictidesa superconducting state in iron-pnictides.
Internetwork magnetic field as revealed by 2D inversions
Creators: name: Danilovic, S.
name: van Noort, M.
name: Rempel, M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Properties of magnetic field in the internetwork regions are still fairly unknown due to rather weak spectropolarimetric signals. We address the matter by using the 2D inversion code that is able to retrieve the information on smallest spatial scales, up to the diffraction limit, while being less susceptible to noise than most of the previous methods used. Performance of the code and the impact of the various effects on the retrieved field distribution is tested first on the realistic MHD simulations. The best inversion scenario is then applied to the real Hinode/SP data. Tests on simulations show: (1) the best choice of node position ensures a decent retrieval of all parameters, (2) code performs well for different configurations of magnetic field, (3) slightly different noise level or slightly different defocus included in the spatial PSF produces no significant effect on the results and (4) temporal integration shifts the field distribution to the stronger, more horizontally inclined field. Although the contribution of the weak field is slightly overestimated due to noise, the 2D inversions are able to recover well the overall distribution of the magnetic field strength. Application of the 2D inversion code on the Hinode/SP internetwork observations reveals a monotonic field strength distribution. The mean field strength at optical depth unity is $\sim 130$~G. At the higher layers, field strength drops as the field becomes more horizontal. Regarding the distribution of the field inclination, tests show that we cannot directly retrieve it with the observations/tools at hand, however the obtained distributions are consistent with those expected from simulations with a quasi-isotropic field inclination after accounting for observational effects.
description: accepted in A&A
Parametric, Probabilistic, Timed Resource Discovery System
Creators: name: Coti, Camille
Publisher: name: arXiv
Year: 2016
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: This paper presents a fully distributed resource discovery and reservation system. Verification of such a system is important to ensure the execution of distributed applications on a set of resources in appropriate conditions. A semi-formal model for his system is presented using probabilistic timed automata. This model is timed, parametric and probabilistic, making it a challenge to the parameter synthesis community.
description: In Proceedings Cassting'16/SynCoP'16, arXiv:1608.00177
Hardware Decoders for Polar Codes: An Overview
Creators: name: Giard, Pascal
name: Sarkis, Gabi
name: Balatsoukas-Stimming, Alexios
name: Fan, YouZhe
name: Tsui, Chi-ying
name: Burg, Andreas
name: Thibeault, Claude
name: Gross, Warren J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Polar codes are an exciting new class of error correcting codes that achieve the symmetric capacity of memoryless channels. Many decoding algorithms were developed and implemented, addressing various application requirements: from error-correction performance rivaling that of LDPC codes to very high throughput or low-complexity decoders. In this work, we review the state of the art in polar decoders implementing the successive-cancellation, belief propagation, and list decoding algorithms, illustrating their advantages.
description: 4 pages, 3 figures, presented at IEEE ISCAS 2016
WASP-92b, WASP-93b and WASP-118b: Three new transiting close-in giant planets
Creators: name: Hay, K. L.
name: Collier-Cameron, A.
name: Doyle, A. P.
name: Hébrard, G.
name: Skillen, I.
name: Anderson, D. R.
name: Barros, S. C. C.
name: Brown, D. J. A.
name: Bouchy, F.
name: Busuttil, R.
name: Delorme, P.
name: Delrez, L.
name: Demangeon, O.
name: Díaz, R. F.
name: Gillon, M.
name: Gonzàlez, E.
name: Hellier, C.
name: Holmes, S.
name: Jarvis, J. F.
name: Jehin, E.
name: Joshi, Y. C.
name: Kolb, U.
name: Lendl, M.
name: Maxted, P. F. L.
name: McCormac, J.
name: Miller, G. R. M.
name: Mortier, A.
name: Pollacco, D.
name: Queloz, D.
name: Ségransan, D.
name: Simpson, E. K.
name: Smalley, B.
name: Southworth, J.
name: Triaud, A. H. M. J.
name: Turner, O. D.
name: Udry, S.
name: Vanhuysse, M.
name: West, R. G.
name: Wilson, P. A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present the discovery of three new transiting giant planets, first detected with the WASP telescopes, and establish their planetary nature with follow up spectroscopy and ground-based photometric lightcurves. WASP-92 is an F7 star, with a moderately inflated planet orbiting with a period of 2.17 days, which has $R_p = 1.461 \pm 0.077 R_{\rm J}$ and $M_p = 0.805 \pm 0.068 M_{\rm J}$. WASP-93b orbits its F4 host star every 2.73 days and has $R_p = 1.597 \pm 0.077 R_{\rm J}$ and $M_p = 1.47 \pm 0.029 M_{\rm J}$. WASP-118b also has a hot host star (F6) and is moderately inflated, where $R_p = 1.440 \pm 0.036 R_{\rm J}$ and $M_p = 0.513 \pm 0.041 M_{\rm J}$ and the planet has an orbital period of 4.05 days. They are bright targets (V = 13.18, 10.97 and 11.07 respectively) ideal for further characterisation work, particularly WASP-118b, which is being observed by K2 as part of campaign 8. WASP-93b is expected to be tidally migrating outwards, which is divergent from the tidal behaviour of the majority of hot Jupiters discovered.
description: 14 pages, 10 figures; submitted to MNRAS
Meta-model based generation of domain-specific modeling tools
Creators: name: Lybecait, Michael
Publisher: name: TU Dortmund
Year: 2019
Subjects: subject: Domain-specific modeling tools
subject: Meta-modeling
subject: Code generation
subject: DSL
subject: 004
subject: Domänenspezifische Programmiersprache
subject: Codegenerierung
subject: Metamodell

description: Today software development often depends on the communication between different shareholders with various professional backgrounds. Domain specific languages (DSL) aim to close the semantic gap between these shareholders by providing a common method for communication. When using meta-tooling suites or language workbenches it is quiet easy to create DSLs for small scenarios or even for single use. But with the more frequent use of DSLs the need for domain-specific tooling has also risen. This dissertation deals with the challenges of creating domain-specific modeling tools using high-level specification languages via code generation. It focuses on three important elements of domain-specific tool generation such as: specification languages, the tool generation process and the generation of domain-specific APIs, for amplifying the development of plug-ins for the generated tool, which are the main contributions of this dissertation. The first main contribution focuses on the formalization of the specification languages. It is illustrated by detailing the three specification languages of the meta-tooling suite. The second main contribution introduces the product generation process, which is used to create domain-specific modeling tools from the high-level domain specific languages, defined in the first contribution. The approach is illustrated by the [ product generation process]{} (), which defines the necessary steps to produce a standalone modeling tool in the meta-tooling suite. The third main contribution of this dissertation is the generation of a domain-specific API based on the same high-level descriptions used for the product generation. It uses information present at generation time to create specific operations that are useful for transformations on graph-models (such as typed successor/predecessor or containment relationships). Therefore the API generation of any product is generated during the execution of the . The API makes it easy to develop any extensions for the product due to its domain-specific nature and the ability to resemble user actions in the generated editors.
Weighted Branching Simulation Distance for Parametric Weighted Kripke Structures
Creators: name: Foshammer, Louise
name: Larsen, Kim Guldstrand
name: Mariegaard, Anders
Publisher: name: arXiv
Year: 2016
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: This paper concerns branching simulation for weighted Kripke structures with parametric weights. Concretely, we consider a weighted extension of branching simulation where a single transitions can be matched by a sequence of transitions while preserving the branching behavior. We relax this notion to allow for a small degree of deviation in the matching of weights, inducing a directed distance on states. The distance between two states can be used directly to relate properties of the states within a sub-fragment of weighted CTL. The problem of relating systems thus changes to minimizing the distance which, in the general parametric case, corresponds to finding suitable parameter valuations such that one system can approximately simulate another. Although the distance considers a potentially infinite set of transition sequences we demonstrate that there exists an upper bound on the length of relevant sequences, thereby establishing the computability of the distance.
description: In Proceedings Cassting'16/SynCoP'16, arXiv:1608.00177
An investigation of the low-DeltaV near-Earth asteroids (341843) 2008 EV5 and (52381) 1993 HA. Two suitable targets for the ARM and MarcoPolo-M5 space missions
Creators: name: Perna, D.
name: Popescu, M.
name: Monteiro, F.
name: Lantz, C.
name: Lazzaro, D.
name: Merlin, F.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The Asteroid Redirect Mission (ARM) under development by NASA is being planned to collect a multi-meter boulder from a near-Earth asteroid (NEA), and to bring it to the cis-lunar space in the mid-2020's for future study and exploitation by a crewed mission. The MarcoPolo-M5 project is being proposed in 2016 for the M5 mission opportunity by ESA, to bring back to Earth a sample from a very primitive D-type NEA. We aim to further characterize the physical properties of two optimal targets for sample return space missions, the low-DeltaV NEAs (341843) 2008 EV5 and (52381) 1993 HA. 2008 EV5 is the baseline target of ARM, but only one spectrum of this object exists in the literature. 1993 HA is a very favourable target for a space mission based on its dynamical properties: here we intend to assess if it is a suitable target for MarcoPolo-M5. We obtained visible spectroscopy of 2008 EV5 with the FORS2 instrument at ESO-VLT, at different rotational phases. We also obtained visible and near-infrared spectroscopy of 1993 HA, using the EFOSC2 and SOfI instruments at ESO-NTT. Visible photometry of 1993 HA was carried out within the IMPACTON project at the Observatorio Astronomico do Sertao de Itaparica (Brazil). Our new observations are in agreement with the C-type classification of 2008 EV5. We obtained five visible spectra which do not show any variability within the limits of noise, suggesting a homogeneous surface. We obtained the first ever spectroscopic dataset for 1993 HA, finding a featureless, red-sloped behaviour typical of D-types. We found that the synodic rotation period of 1993 HA is 4.107+-0.002 h. The derived lightcurve also suggests an elongated shape (axis ratio a/b>=1.71). At this stage 1993 HA does indeed seem to be the most favourable target for MarcoPolo-M5, though future observations are necessary to study it further.
description: Accepted for publication in A&A
title: Incidence and predictors of left atrial appendage thrombus on transesophageal echocardiography before elective cardioversion
Creators: name: Wegner, Felix K.
name: Radke, Robert Matthias
name: Ellermann, Christian
name: Wolfes, Julian
name: Fischer, Alicia Jeanette
name: Baumgartner, Helmut
name: Eckardt, Lars
name: Diller, Gerhard-Paul
name: Orwat, Stefan
Publisher: name: University of Muenster, Institutional Repository MIAMI
Year: 2023
Subjects: subject: 610 Medicine and health

description: Guidelines recommend transesophageal echocardiography (TEE) before cardioversion in thrombogenic arrhythmias when the requirement of ≥ 3 weeks of anticoagulation is not met. Current data to support this approach, especially with direct oral anticoagulants (DOAC), are scarce. We analyzed consecutive elective pre-cardioversion TEE in a high-volume electrophysiology center for the occurrence of left atrial appendage (LAA) thrombi or reduced LAA flow velocity. Possible predictors were recorded and compared in a multivariate logistic regression analysis. Consecutive pre-cardioversion TEE in 512 patients (148 female, median age 69 years) were included. In all patients, indication for TEE was either intake of anticoagulation < 3 weeks before cardioversion or uncertain adherence to the prescribed anticoagulation regimen. Of the 512 TEE, 19 (3.7%) depicted a LAA thrombus. An additional 41 patients (8.0%) showed either a reduced LAA flow velocity (≤ 20 cm/s), LAA sludge, or both. In a multivariate logistic regression analysis, QRS width on admission 12-lead ECG emerged as a possible predictor of LAA thrombus and reduced LAA flow (p = 0.008). Noteworthy, a high CHA2DS2-VASc score was not associated with an increased risk of reduced LAA emptying velocity and LAA thrombi were even found in patients with a CHA2DS2-VASc score of 0 (n = 1) and 1 (n = 1). The presence of LAA thrombus before an elective cardioversion is a rare event in the age of direct oral anticoagulants. However, LAA thrombi occurred even in supposed low-risk individuals according to the CHA2DS2-VASc score. QRS width may aid in identifying patients at risk of reduced LAA flow velocity.
description: Finanziert über die DEAL-Vereinbarung mit Wiley 2019-2022.
Top Secrets: Long-Lived ALPs in Top Production
Creators: name: Rygaard, Lovisa
name: Niedziela, Jeremi
name: Schäfer, Ruth
name: Bruggisser, Sebastian
name: Alimena, Juliette
name: Westhoff, Susanne
name: Blekman, Freya
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2023
Subjects: top, coupling
particle, long-lived
top, production
quark, pair
decay, length
CERN LHC Coll
axion-like particles
sensitivity
missing-energy
tracking detector
trigger
background
gap
TeV

description: We investigate the discovery potential for long-lived particles produced in association with a top-antitop quark pair at the (High-Luminosity) LHC. Compared to inclusive searches for a displaced vertex, top-associated signals offer new trigger options and an extra handle to suppress background. We design a search strategy for a displaced di-muon vertex in the tracking detectors, in association with a reconstructed top-antitop pair.For axion-like particles with masses above the di-muon threshold, we find that the (High-Luminosity) LHC can probe effective top-quark couplings as small as $|c_{tt}|/f_a = 0.03~(0.002)/$TeV and proper decay lengths as long as $10(400)$ m, assuming a cross section of $1\,$fb, with data corresponding to an integrated luminosity of 150 fb$^{-1}$ (3 ab$^{-1}$). Our predictions suggest that searches for top-associated displaced di-muons will explore new terrain in the current sensitivity gap between searches for prompt di-muons and missing energy.
Technical specification for single point of access and process model (NFDI4Earth Deliverable D1.3.12)
Creators: name: Sadeghi, Farzaneh
name: Keßler, Carsten
name: Eid, Yomna
name: Pebesma, Edzer
name: Teuscher, Balthasar
name: Werner, Martin
name: Purr, Christopher
name: Sadikni, Remon
Publisher: name: Zenodo
Year: 2023
Subjects: NFDI
NFDI4Earth
NFDI4Earth Deliverable
EduTrain
NFDI4Earth Task Area 1
NFDI4Earth 2Participate

description: This deliverable is a specification that outlines the process for managing the life cycle of education and training materials and services, including submitting, reviewing, publishing, revising, versioning, and using them, through a single point of access for the NFDI4Earth project. It starts by introducing the input used to develop the specification, including a comparison of learning management systems and their capabilities. The second part of the specification describes the process model for the life cycle of the open educational resources to be hosted on the platform, including the initial implementation and the long-term vision for the platform. The report also includes an initial version of the metadata specification to make the resources findable and integrate them into the NFDI4Earth knowledge graph.
description: This work has been funded by the German Research Foundation (DFG) through the project NFDI4Earth (DFG project no.460036893, https://www.nfdi4earth.de/) within the German National Research Data Infrastructure (NFDI, https://www.nfdi.de/).
Public Sector Reform for Dynamic Governance: Evidence from Selected Regional bureaus of Oromia Regional State, Ethiopia
Creators: name: Daba, Nigussie
Publisher: name: African Journal of Leadership and Development
Year: 2020

description: The general objective of this study was to assess the role of the public sector reform programs in creating dynamic governance in bureau-level sectors of Oromia Regional State. In this survey study, sectors at the regional administration-level were selected using purposive sampling technique. About 170 civil servants and middle level public managers were selected from the sectors using simple random sampling technique. The analysis of the study was descriptive that combined both qualitative and quantitative data. The study shows a clear dominance of roles that are in line both with a Weberian self-understanding and a managerial (NPM) self-understanding indicating a certain hybridization of these two reform paradigms called Neo-Weberian model. The study identified that public managers and civil servants in the region perceive low level of autonomy (except in policy implementation) in power of promoting, hiring and firing of employees, restructuring organization, and developing and selecting policy options. This study also indicated poor implementation of the managerial reform programs in the regional state. Considering the human resource capacities of civil service organizations of the regional state, public sector reforms can bring incremental benefit and evolutionary transformation instead of dramatic and radical change for foreseeable future to come, in which it will be difficult to expect the dynamic governance to be a reality. Finally this paper recommends due attention for the implementation of Balanced Scorecard in the public sectors.
description: African Journal of Leadership and Development, Vol. 5 No. 2 (2020): Public Sector Reform
The capacity for airport precinct cooling using recycled stormwater irrigation
Creators: name: QIAN, JINGMING
Publisher: name: Monash University
Year: 2023
Subjects: classificationCode: 410199
subject: Climate change impacts and adaptation not elsewhere classified

description: On the basis of systematic comparison of traditional outdoor thermal environment simulation models, a model expanded to include bio-swales (a kind of common surface in the buffer area of airports) is selected in this paper for function module simulation, and a calibration mode for characteristic parameters of the surface thermal environment is established. The model is verified by field trials at Adelaide International Airport, and then applied to the study to define irrigation strategies and comprehensive benefits in the buffer area.
What is a graphon?
Creators: name: Glasscock, Daniel
Publisher: name: arXiv
Year: 2016
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: Graphons, short for graph functions, are limiting objects for sequences of large, finite graphs with respect to the so-called cut metric. In this expository piece, we define graphons, motivate them, and discuss how they complete the space of finite graphs. We conclude by stating three theorems that connect the finite world of graphs with the continuous world of graphons.
description: 3 pages
title: Multifrequency atomic force microscopy for the in-plane and out-of-plane nanomechanical characterization of graphitic surfaces
Creators: name: Eichhorn, Anna Lisa
Publisher: name: UNSPECIFIED
Year: 2023

description: Graphene is considered as one of the most promising materials for numerous applications such as electronics, photonics, membranes, sensors, heat dissipators, lubricants and many more [1, 2]. In addition to its outstanding electronic properties, in particular, the extraordinary mechanical properties of graphene have become the focus of scientific attention. For example, it has been shown that defect-free graphene has an enormously high Young’s modulus of about 1 TPa [3]. However, little research has been done on the local influence of defects on the nanomechanical properties of graphene. Several challenges come to mind as possible reasons, such as (i) imaging graphene with atomic resolution, (ii) simultaneous analysis of sample properties parallel and perpendicular to the sample plane, (iii) preparation of adsorbate-free graphene samples, and (iv) targeted introduction of defects. To overcome the aforementioned challenges, first, an atomic force microscopy-based method was developed within this work that enables imaging of graphene in air under ambient conditions with atomic resolution. In addition, the method was designed to allow quantification of interaction forces, both, perpendicular and parallel to the graphene surface. This is particularly important to access the complete set of elastic constants of graphene. An important finding of this work is that different adsorbate types could be observed on the graphene surface shortly after the preparation of graphene samples. Therefore, a detailed analysis of the adsorbates was performed using the developed multifrequency atomic force microscopy method. Furthermore, the extent to which oxygen-plasma treatment can be used to remove adsorbates from a graphene sample stored under laboratory air conditions was examined. Adsorbate removal is a basic requirement for the targeted introduction of defects, as well as for the investigation of their influence on the local nanomechanical properties. The effect of oxygen-plasma treatment on different graphene-/graphite-samples was additionally investigated by Raman spectroscopy.
MPEC 2023-R191 : 2023 RA8
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 RA8

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.