cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
War Diary of 1st Battalion Canadian Scottish Regiment, Vol. 41, January 1, 1943 to January 31, 1943
Creators: name: Canada. Canadian Army. Canadian Scottish Regiment (Princess Mary's)
Publisher: name: University of Victoria Libraries
Year: 2020
Subjects: subject: Canada. Canadian Army
valueUri: http://id.worldcat.org/fast/531187
subject: Canada. Canadian Army. Canadian Scottish Regiment (Princess Mary's)
subject: World War (1939-1945)
valueUri: http://id.worldcat.org/fast/1180924
subject: War diaries
valueUri: http://id.worldcat.org/fast/1745536

description: The war diaries are official records kept by the Battalions during a one month period. They contain the daily orders, correspondence, newsletters, and an intelligence log detailing troop activities, locations, and weather conditions. The war diaries detail the activities and movement of the 1st Battalion from training in Canada and England to active duty on the Western Front and their return to Victoria in January 1946. This diary was kept while at Angmering and Monk's Gate Common, England. It has entries about having a move order and prepping to move to Wiston Park but the move being cancelled last minute, the pipe band being broadcast over the BBC that will be transmitted to Canada, prepping to move to Monk's Gate Common near Horsham, concerns about security of information as the local civilians were all aware of the battalion's move, moving to Monk's Gate and having to clean up the camp, an air raid warning but no enemy planes sighted, the pipe band playing in Horsham and being a great help in winning over the towns-people wherever the regiment goes, and lectures in German tactics, among other activities and information. Includes appendices covering orders, strength returns (daily & weekly), training syllabi, administrative memos, exercises, sniper concentration, and movement orders.
CONCERTO at APEX -- On-sky performance in continuum
Creators: name: Hu, W.
name: Beelen, A.
name: Lagache, G.
name: Fasano, A.
name: Lundgren, A.
name: Ade, P.
name: Aravena, M.
name: Barria, E.
name: Benoit, A.
name: Bethermin, M.
name: Bounmy, J.
name: Bourrion, O.
name: Bres, G.
name: De Breuck, C.
name: Calvo, M.
name: Catalano, A.
name: Desert, F. -X.
name: Dubois, C.
name: Duran, C. A
name: Fenouillet, T.
name: Garcia, J.
name: Garde, G.
name: Goupy, J.
name: Hoarau, C.
name: Lambert, J. -C.
name: Lellouch, E.
name: Levy-Bertrand, F.
name: Macias-Perez, J.
name: Marpaud, J.
name: Monfardini, A.
name: Pisano, G.
name: Ponthieu, N.
name: Prieur, L.
name: Quinatoa, D.
name: Roni, S.
name: Roudier, S.
name: Tourres, D.
name: Tucker, C.
name: Van Cuyck, M.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the data-processing algorithms and the performance of CONCERTO (CarbON CII line in post-rEionisation and ReionisaTiOn epoch) in continuum by analysing the data from the commissioning and scientific observations. The beam pattern is characterized by an effective FWHM of 31.9 $\pm$ 0.6" and 34.4 $\pm$ 1.0" for high-frequency (HF) and low-frequency (LF) bands. The main beam is slightly elongated with a mean eccentricity of 0.46. Two error beams of $\sim$65" and $\sim$130" are characterized, enabling the estimate of a main beam efficiency of $\sim$0.52. The field of view is accurately reconstructed and presents coherent distortions between the HF and LF arrays. LEKID parameters were robustly determined for 80% of the read tones. Cross-talks between LEKIDs are the first cause of flagging, followed by an excess of eccentricity for $\sim$10% of the LEKIDs, all located in a given region of the field of view. On the 44 scans of Uranus selected for the absolute photometric calibration, 72.5% and 78.2% of the LEKIDs are selected as valid detectors with a probability >70%. By comparing Uranus measurements with a model, we obtain calibration factors of 19.5$\pm$0.6 [Hz/Jy] and 25.6$\pm$0.9 [Hz/Jy] for HF and LF. The point-source continuum measurement uncertainties are 3.0% and 3.4% for HF and LF bands. The RMS of CONCERTO maps is verified to evolve as proportional to the inverse square root of integration time. The measured NEFDs for HF and LF are 115$\pm$2 mJy/beam$\cdot$s$^{1/2}$ and 95$\pm$1 mJy/beam$\cdot$s$^{1/2}$, obtained using CONCERTO data on the COSMOS field for a mean precipitable water vapour and elevation of 0.81 mm and 55.7 deg. CONCERTO demonstrates unique capabilities in fast dual-band spectral mapping with a $\sim$18.5' instantaneous field-of-view. CONCERTO's performance in continuum is perfectly in line with expectations.
description: 23pages, 22 figures
Lattice gas automaton modelling of a vortex flow meter: Strouhal-Reynolds number dependence
Creators: name: Juknevicius, Vaidas
name: Armaitis, Jogundas
Publisher: name: arXiv
Year: 2017
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Motivated by recent experimental and computational results concerning the three-dimensional structure of vortices behind a vortex shedding flow meter [M. Reik et al., Forsch. Ingenieurwes. 74, 77 (2010)], we study the Strouhal-Reynolds number dependence in the vortex street in two dimensions behind a trapezoid-shaped object by employing two types of Frisch-Hasslacher-Pomeau (FHP) models. Our geometry is intended to reproduce the operation of the vortex shedding flow meter in a two-dimensional setting, thus preventing the formation of three-dimensional vortex structure. In particular, we check if the anomalous Reynolds-Strouhal number dependence reported for three dimensions can also be found in our two-dimensional simulation. As we find that the Strouhal number is nearly independent of the Reynolds number in this particular setup, our results provide support for the hypothesis that three-dimensional flow structures are responsible for that dependence, thus hinting at the importance of the pipe diameter to the accurate operation of industrial vortex flow meters.
In-in formalism for the entropy of quantum fields in curved spacetimes
Creators: name: Colas, Thomas
name: Grain, Julien
name: Kaplanek, Greg
name: Vennin, Vincent
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We show how to compute the purity and entanglement entropy for quantum fields in a systematic perturbative expansion. To that end, we generalize the in-in formalism to non-unitary dynamics (i.e. accounting for the presence of an environment) and to the calculation of quantum information measures, which are not observables in the usual sense. This allows us to reduce the problem to one involving standard correlation functions, and to organize their computation in a diagrammatic expansion for which we construct the corresponding Feynman rules. As an illustration, we apply the formalism to a cosmological setting inspired by the effective field theory of inflation. We find that at late times, non-linear loop corrections share the same time behavior as the linear contribution, and only yield a slight redressing of the purity. In particular, when the environment is heavy compared to the Hubble scale, the phenomenon of recoherence previously encountered is robust to the class of non-linear extensions considered. Bridging the gap between perturbative quantum field theory and open quantum systems paves the way to a better understanding of renormalization and resummation in open effective field theories. It also enables a more systematic exploration of quantum information properties in field theoretic settings.
description: 43 pages without appendices (66 pages in total), 14 figures, matches published version in JCAP
The amplitude of the cross-covariance function of solar oscillations as a diagnostic tool for wave attenuation and geometrical spreading
Creators: name: Nagashima, Kaori
name: Fournier, Damien
name: Birch, Aaron C.
name: Gizon, Laurent
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context. In time-distance helioseismology, wave travel times are measured from the two-point cross-covariance function of solar oscillations and are used to image the solar convection zone in three dimensions. There is, however, also information in the amplitude of the cross-covariance function, for example about seismic wave attenuation. Aims. Here we develop a convenient procedure to measure the amplitude of the cross-covariance function of solar oscillations. Methods. In this procedure, the amplitude of the cross-covariance function is linearly related to the cross-covariance function and can be measured even for high levels of noise. Results. As an example application, we measure the amplitude perturbations of the seismic waves that propagate through the sunspot in active region NOAA 9787. We can recover the amplitude variations due to the scattering and attenuation of the waves by the sunspot and associated finite-wavelength effects. Conclusions. The proposed definition of cross-covariance amplitude is robust to noise, can be used to relate measured amplitudes to 3D perturbations in the solar interior under the Born approximation, and will provide independent information from the travel times.
description: accepted for publication in A&A
A note on robustness of coherence for multipartite quantum states
Creators: name: Mukhopadhyay, Chiranjib
name: Sharma, Udit Kamal
name: Chakrabarty, Indranil
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this brief report, we prove that robustness of coherence (ROC), in contrast to many popular quantitative measures of quantum coherence derived from the resource theoretic framework of coherence, may be sub-additive for a specific class of multipartite quantum states. We investigate how the sub-additivity is affected by admixture with other classes of states for which ROC is super-additive. We show that pairs of quantum states may have different orderings with respect to relative entropy of coherence, $l_{1}$-norm of coherence and ROC and numerically study the difference in ordering for coherence measures chosen pairwise.
description: 4 pages + 3 figures, comments welcome
Bayesian Learning of Consumer Preferences for Residential Demand Response
Creators: name: Goubko, Mikhail V.
name: Kuznetsov, Sergey O.
name: Neznanov, Alexey A.
name: Ignatov, Dmitry I.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Machine Learning (cs.LG)
subject: Systems and Control (eess.SY)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: I.2.6
subject: 68T05 Learning and adaptive systems

description: In coming years residential consumers will face real-time electricity tariffs with energy prices varying day to day, and effective energy saving will require automation - a recommender system, which learns consumer's preferences from her actions. A consumer chooses a scenario of home appliance use to balance her comfort level and the energy bill. We propose a Bayesian learning algorithm to estimate the comfort level function from the history of appliance use. In numeric experiments with datasets generated from a simulation model of a consumer interacting with small home appliances the algorithm outperforms popular regression analysis tools. Our approach can be extended to control an air heating and conditioning system, which is responsible for up to half of a household's energy bill.
Dynamics of trapped atoms around an optical nanofiber probed through polarimetry
Creators: name: Solano, Pablo
name: Fatemi, Fredrik K.
name: Orozco, Luis A.
name: Rolston, S. L.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The evanescent field outside an optical nanofiber (ONF) can create optical traps for neutral atoms. We present a non-destructive method to characterize such trapping potentials. An off-resonance linearly polarized probe beam that propagates through the ONF experiences a slow axis of polarization produced by trapped atoms on opposite sides along the ONF. The transverse atomic motion is imprinted onto the probe polarization through the changing atomic index of of refraction. By applying a transient impulse, we measure a time-dependent polarization rotation of the probe beam that provides both a rapid and non-destructive measurement of the optical trapping frequencies.
Wiener filter reloaded: fast signal reconstruction without preconditioning
Creators: name: Ramanah, Doogesh Kodi
name: Lavaux, Guilhem
name: Wandelt, Benjamin D.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a high performance solution to the Wiener filtering problem via a formulation that is dual to the recently developed messenger technique. This new dual messenger algorithm, like its predecessor, efficiently calculates the Wiener filter solution of large and complex data sets without preconditioning and can account for inhomogeneous noise distributions and arbitrary mask geometries. We demonstrate the capabilities of this scheme in signal reconstruction by applying it on a simulated cosmic microwave background (CMB) temperature data set. The performance of this new method is compared to that of the standard messenger algorithm and the preconditioned conjugate gradient (PCG) approach, using a series of well-known convergence diagnostics and their processing times, for the particular problem under consideration. This variant of the messenger algorithm matches the performance of the PCG method in terms of the effectiveness of reconstruction of the input angular power spectrum and converges smoothly to the final solution. The dual messenger algorithm outperforms the standard messenger and PCG methods in terms of execution time, as it runs to completion around 2 and 3-4 times faster than the respective methods, for the specific problem considered.
description: 13 pages, 10 figures. Accepted for publication in MNRAS main journal
Reproducible Computational Workflows with Continuous Analysis

Creators: name: Beaulieu-Jones, Brett
name: Greene, Casey
Publisher: name: F1000Research
Year: 2016

description: Reproducing experiments is vital to science. Being able to replicate, validate and extend previous work also speeds new research projects. Reproducing computational biology experiments, which are scripted, should be straightforward. But reproducing such work remains challenging and time consuming. In the ideal world we would be able to quickly and easily rewind to the precise computing environment where results were generated. We would then be able to reproduce the original analysis or perform new analyses. We introduce a process termed "continuous analysis" which provides inherent reproducibility to computational research at a minimal cost to the researcher. Continuous analysis combines Docker, a container service similar to virtual machines, with continuous integration, a popular software development technique, to automatically re-run computational analysis whenever relevant changes are made to the source code. This allows results to be reproduced quickly, accurately and without needing to contact the original authors. Continuous analysis also provides an audit trail for analyses that use data with sharing restrictions. This allows reviewers, editors, and readers to verify reproducibility without manually downloading and rerunning any code.

The video for this keynote presentation at BOSC 2016 can be viewed here.
Comment on: Multipartite entanglement in four-qubit graph state
Creators: name: Haddadi, Saeed
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: 81P40

description: The following comment is based on an article by M. Jafarpour and L. Assadi [Eur. Phys. J. D 70, 62 (2016), doi:10.1140/epjd/e2016-60555-5] which with an exploitation of Scott measure (or generalized Meyer-Wallach measure) the entanglement quantity of four-qubit graph states has been calculated. We are to reveal that the Scott measure (Q_m) nominates limits for m which would prevent us from calculating Q_3 in four-qubit system. Incidentally in a counterexample we will confirm as it was recently concluded in the mentioned article, the Q_2 quantity is not necessarily always greater than Q_3.
description: 2 pages, 1 figures
Active modulation of electromagnetically induced transparency analogue in terahertz hybrid metal-graphene metamaterials
Creators: name: Xiao, Shuyuan
name: Wang, Tao
name: Liu, Tingting
name: Yan, Xicheng
name: Li, Zhong
name: Xu, Chen
Publisher: name: arXiv
Year: 2017
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Metamaterial analogues of electromagnetically induced transparency (EIT) have been intensively studied and widely employed for slow light and enhanced nonlinear effects. In particular, the active modulation of the EIT analogue and well-controlled group delay in metamaterials have shown great prospects in optical communication networks. Previous studies have focused on the optical control of the EIT analogue by integrating the photoactive materials into the unit cell, however, the response time is limited by the recovery time of the excited carriers in these bulk materials. Graphene has recently emerged as an exceptional optoelectronic material. It shows an ultrafast relaxation time on the order of picosecond and its conductivity can be tuned via manipulating the Fermi energy. Here we integrate a monolayer graphene into metal-based terahertz (THz) metamaterials, and realize a complete modulation in the resonance strength of the EIT analogue at the accessible Fermi energy. The physical mechanism lies in the active tuning the damping rate of the dark mode resonator through the recombination effect of the conductive graphene. Note that the monolayer morphology in our work is easier to fabricate and manipulate than isolated fashion. This work presents a novel modulation strategy of the EIT analogue in the hybrid metamaterials, and pave the way towards designing very compact slow light devices to meet future demand of ultrafast optical signal processing.
Significant Dzyaloshinskii-Moriya Interaction at Graphene-Ferromagnet Interfaces due to Rashba-effect
Creators: name: Yang, Hongxin
name: Chen, Gong
name: Cotta, Alexandre A. C.
name: N'Diaye, Alpha T.
name: Nikolaev, Sergey A.
name: Soares, Edmar A.
name: Macedo, Waldemar A. A.
name: Schmid, Andreas K.
name: Fert, Albert
name: Chshiev, Mairbek
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The possibility of utilizing the rich spin-dependent properties of graphene has attracted great attention in pursuit of spintronics advances. The promise of high-speed and low-energy consumption devices motivates a search for layered structures that stabilize chiral spin textures such as topologically protected skyrmions. Here we demonstrate that chiral spin textures are induced at graphene/ferromagnetic metal interfaces. This is unexpected because graphene is a weak spin-orbit coupling material and is generally not expected to induce sufficient Dzyaloshinskii-Moriya interaction to affect magnetic chirality. We demonstrate that graphene induces a new type of Dzyaloshinskii-Moriya interaction due to a Rashba effect. First-principles calculations and experiments using spin-polarized electron microscopy show that this graphene-induced Dzyaloshinskii-Moriya interaction can have similar magnitude as at interfaces with heavy metals. This work paves a new path towards two-dimensional material based spin orbitronics.
description: 21 pages, 4 figures
Spatially resolved electronic structure of twisted graphene
Creators: name: Yao, Qirong
name: van Bremen, Rik
name: Slotman, Guus J.
name: Zhang, Lijie
name: Haartsen, Sebastiaan
name: Sotthewes, Kai
name: Bampoulis, Pantelis
name: de Boeij, Paul L.
name: van Houselt, Arie
name: Yuan, Shengjun
name: Zandvliet, Harold J. W.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have used scanning tunneling microscopy and spectroscopy to resolve the spatial variation of the density of states of twisted graphene layers on top of a highly oriented pyrolytic graphite substrate. Owing to the twist a moire pattern develops with a periodicity that is substantially larger than the periodicity of a single layer graphene. The twisted graphene layer has electronic properties that are distinctly different from that of a single layer graphene due to the nonzero interlayer coupling. For small twist angles (about 1-3.5 degree) the integrated differential conductivity spectrum exhibits two well-defined Van Hove singularities. Spatial maps of the differential conductivity that are recorded at energies near the Fermi level exhibit a honeycomb structure that is comprised of two inequivalent hexagonal sub-lattices. For energies |E-E_F|>0.3 eV the hexagonal structure in the differential conductivity maps vanishes. We have performed tight-binding calculations of the twisted graphene system using the propagation method, in which a third graphene layer is added to mimic the substrate. This third layer lowers the symmetry and explains the development of the two hexagonal sub-lattices in the moire pattern. Our experimental results are in excellent agreement with the tight-binding calculations.
description: To appear in Phys. Rev. B
Using deep neural networks for detecting spurious oscillations in discontinuous Galerkin solutions of convection-dominated convection-diffusion equations
Creators: name: Frerichs-Mihov, Derk
name: Henning, Linus
name: John, Volker
Publisher: name: Weierstrass Institute
Year: 2022
Subjects: subject: Convection-diffusion equations
subject: discontinuous Galerkin methods
subject: spurious oscillations
subject: deep neural networks
subject: slope limiter
subject: 65N30
subject: 68T07

description: Standard discontinuous Galerkin (DG) finite element solutions to convection-dominated con- vection-diffusion equations usually possess sharp layers but also exhibit large spurious oscillations. Slope limiters are known as a post-processing technique to reduce these unphysical values. This paper studies the application of deep neural networks for detecting mesh cells on which slope limiters should be applied. The networks are trained with data obtained from simulations of a standard benchmark problem with linear finite elements. It is investigated how they perform when applied to discrete solutions obtained with higher order finite elements and to solutions for a different benchmark problem.
Revealing topological Dirac fermions at the surface of strained HgTe thin films via Quantum Hall transport spectroscopy
Creators: name: Thomas, C.
name: Crauste, O.
name: Haas, B.
name: Jouneau, P. H.
name: Bäuerle, C.
name: Lévy, L. P.
name: Orignac, E.
name: Carpentier, D.
name: Ballet, P.
name: Meunier, T.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We demonstrate evidences of electronic transport via topological Dirac surface states in a thin film of strained HgTe. At high perpendicular magnetic fields, we show that the electron transport reaches the quantum Hall regime with vanishing resistance. Furthermore, quantum Hall transport spectroscopy reveals energy splittings of relativistic Landau levels specific to coupled Dirac surface states. This study provides new insights in the quantum Hall effect of topological insulator (TI) slabs, in the cross-over regime between two- and three-dimensional TIs, and in the relevance of thin TI films to explore novel circuit functionalities in spintronics and quantum nanoelectronics.
The ACS Survey of Galactic Globular Clusters XIV: Bayesian Single-Population Analysis of 69 Globular Clusters
Creators: name: Wagner-Kaiser, R.
name: Sarajedini, A.
name: von Hippel, T.
name: Stenning, D. C.
name: van Dyk, D. A.
name: Jeffery, E.
name: Robinson, E.
name: Stein, N.
name: Anderson, J.
name: Jefferys, W. H.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We use Hubble Space Telescope (HST) imaging from the ACS Treasury Survey to determine fits for single population isochrones of 69 Galactic globular clusters. Using robust Bayesian analysis techniques, we simultaneously determine ages, distances, absorptions, and helium values for each cluster under the scenario of a "single" stellar population on model grids with solar ratio heavy element abundances. The set of cluster parameters is determined in a consistent and reproducible manner for all clusters using the Bayesian analysis suite BASE-9. Our results are used to re-visit the age-metallicity relation. We find correlations with helium and several other parameters such as metallicity, binary fraction, and proxies for cluster mass. The helium abundances of the clusters are also considered in the context of CNO abundances and the multiple population scenario.
description: Accepted: MNRAS 20 pages, 13 figures, 5 tables
Cloud structure and young star distribution in the Dragonfish complex
Creators: name: Sanchez, Nestor
name: Nespoli, Elisa
name: Gonzalez, Marta
name: Climent, Juan B.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: One way to shed some light on the star formation process this process is to analyse the relationship between the spatial distributions of gas and newly formed stars. In order to obtain robust results, it is necessary for this comparison to be made using quantitative and consistent descriptors applied to the same star-forming region. Here, we use fractal analysis to characterise and compare in a self-consistent way the structure of the cloud and the distribution of young stellar objects (YSO) in the Dragonfish star-forming complex. We used different emission maps of the Dragonfish Nebula and photometric information from the AllWISE catalogue to select a total of 1082 YSOs in the region, for some of which we derived physical properties from their spectral energy distributions (SEDs). For both datasets (cloud images and YSOs), the three-dimensional fractal dimension (Df) was calculated using previously developed and calibrated algorithms. The fractal dimension of the Dragonfish Nebula (Df = 2.6-2.7) agrees very well with values previously obtained for the Orion, Ophiuchus, and Perseus clouds. On the other hand, YSOs exhibit on average a significantly smaller value (Df = 1.9-2.0) that indicates a much more clumpy structure than the material from which they formed. This is a clear and direct evidence that the clustering degree of the newly born stars is significantly higher than that of the parent cloud from which they formed, but the physical mechanism behind this behaviour is still not clear. Additionally, younger Class I and Class II sources have smaller values (Df = 1.7 +/- 0.1) than more evolved Transition Disk objects (Df = 2.2 +/- 0.1), evidencing a certain evolutionary effect where an initially clumpy structure tends to gradually disappear over time.
description: 10 pages, 9 figures, 4 tables, submitted to A&A
Search for new phenomena in dijet events using 37 fb$^{-1}$ of $pp$ collision data collected at $\sqrt{s}=$13 TeV with the ATLAS detector
Creators: name: ATLAS Collaboration
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Dijet events are studied in the proton--proton collision dataset recorded at $\sqrt{s}=$13 TeV with the ATLAS detector at the Large Hadron Collider in 2015 and 2016, corresponding to integrated luminosities of 3.5 fb$^{-1}$ and 33.5 fb$^{-1}$ respectively. Invariant mass and angular distributions are compared to background predictions and no significant deviation is observed. For resonance searches, a new method for fitting the background component of the invariant mass distribution is employed. The dataset is then used to set upper limits at a 95% confidence level on a range of new physics scenarios. Excited quarks with masses below 6.0 TeV are excluded, and limits are set on quantum black holes, heavy W' bosons, W* bosons, and a range of masses and couplings in a Z' dark matter mediator model. Model-independent limits on signals with a Gaussian shape are also set, using a new approach allowing factorization of physics and detector effects. From the angular distributions, a scale of new physics in contact interaction models is excluded for scenarios with either constructive or destructive interference. These results represent a substantial improvement over those obtained previously with lower integrated luminosity.
description: 42 pages in total, author list starting page 26, 6 figures, 2 tables. Submitted to PRD. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/EXOT-2016-21/
RELATIONSHIP OF TYPES OF PAPILLARY PATTERNS OF FINGERS AND TOES IN THE ASPECT OF THE POSSIBILITY OF ESTABLISHING LIMBS BELONGING TO ONE CORPSE DURING FORENSIC MEDICAL EXAMINATION OF FRAGMENTED CORDS
Creators: name: Ismailov, R.A.
name: Roziev, Sh.I.
Publisher: name: Zenodo
Year: 2024

description: The article is devoted to solving an urgent problem of forensic medicine - the search for diagnostic markers of the common origin of biological objects, which is important in the practice of forensic medical examination of corpses fragmented during an explosion.
Single and double linear and nonlinear flatband chains: spectra and modes
Creators: name: Zegadlo, Krzysztof B.
name: Dror, Nir
name: Hung, Nguyen Viet
name: Trippenbach, Marek
name: Malomed, Boris A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We report results of systematic analysis of various modes in the flatband lattice, based on the diamond-chain model with the on-site cubic nonlinearity, and its double version with the linear on-site mixing between the two lattice fields. In the single-chain system, a full analysis is presented, first, for the single nonlinear cell, making it possible to find all stationary states, viz., antisymmetric, symmetric, and asymmetric ones, including an exactly investigated symmetry-breaking bifurcation of the subcritical type. In the nonlinear infinite single-component chain, compact localized states (CLSs) are found in an exact form too, as an extension of known compact eigenstates of the linear diamond chain. Their stability is studied by means of analytical and numerical methods, revealing a nontrivial stability boundary. In addition to the CLSs, various species of extended states and exponentially localized lattice solitons of symmetric and asymmetric types are studied too, by means of numerical calculations and variational approximation. As a result, existence and stability areas are identified for these modes. Finally, the linear version of the double diamond chain is solved in an exact form, producing two split flatbands in the system's spectrum.
description: Phys. Rev E, in press
Mass transfer in asymptotic-giant-branch binary systems
Creators: name: Chen, Z.
name: Frank, A.
name: Blackman, E. G.
name: Nordhaus, J.
name: Carroll-Nellenback, J.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Binary stars can interact via mass transfer when one member (the primary) ascends onto a giant branch. The amount of gas ejected by the binary and the amount of gas accreted by the secondary over the lifetime of the primary influence the subsequent binary phenomenology. Some of the gas ejected by the binary will remain gravitationally bound and its distribution will be closely related to the formation of planetary nebulae. We investigate the nature of mass transfer in binary systems containing an AGB star by adding radiative transfer to the AstroBEAR AMR Hydro/MHD code.
description: 10 figures, 2 pages, revised for IAU323 proceedings
The Lyman-limit photon mean free path at the end of late reionisation in the Sherwood-Relics simulations
Creators: name: Feron, Jennifer
name: Conaboy, Luke
name: Bolton, James S.
name: Chapman, Emma
name: Haehnelt, Martin G.
name: Keating, Laura C.
name: Kulkarni, Girish
name: Puchwein, Ewald
Publisher: name: arXiv
Year: 2024
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Recent evidence supporting reionisation ending at redshift z<6 includes the rapid redshift evolution of the mean free path for Lyman-limit photons through the intergalactic medium at 510 discovered with JWST.
description: 17 pages, 14 figures, accepted to MNRAS
Chern-Simons, Wess-Zumino and other cocycles from Kashiwara-Vergne and associators
Creators: name: Alekseev, Anton
name: Naef, Florian
name: Xu, Xiaomeng
name: Zhu, Chenchang
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Descent equations play an important role in the theory of characteristic classes and find applications in theoretical physics, e.g. in the Chern-Simons field theory and in the theory of anomalies. The second Chern class (the first Pontrjagin class) is defined as $p= \langle F, F\rangle$ where $F$ is the curvature 2-form and $\langle \cdot, \cdot\rangle$ is an invariant scalar product on the corresponding Lie algebra $\mathfrak{g}$. The descent for $p$ gives rise to an element $ω=ω_3 + ω_2 + ω_1 + ω_0$ of mixed degree. The 3-form part $ω_3$ is the Chern-Simons form. The 2-form part $ω_2$ is known as the Wess-Zumino action in physics. The 1-form component $ω_1$ is related to the canonical central extension of the loop group $LG$. In this paper, we give a new interpretation of the low degree components $ω_1$ and $ω_0$. Our main tool is the universal differential calculus on free Lie algebras due to Kontsevich. We establish a correspondence between solutions of the first Kashiwara-Vergne equation in Lie theory and universal solutions of the descent equation for the second Chern class $p$. In more detail, we define a 1-cocycle $C$ which maps automorphisms of the free Lie algebra to one forms. A solution of the Kashiwara-Vergne equation $F$ is mapped to $ω_1=C(F)$. Furthermore, the component $ω_0$ is related to the associator corresponding to $F$. It is surprising that while $F$ and $Φ$ satisfy the highly non-linear twist and pentagon equations, the elements $ω_1$ and $ω_0$ solve the linear descent equation.
Potenziale von Lernfabriken für die berufliche Lehrkräftebildung – Konzepte und Erprobungen in Baden-Württemberg
Creators: name: Windelband, Lars
name: Faßhauer, Uwe
name: Anselmann, Sebastian
Publisher: name: wbv Media GmbH & Co. KG (wbv Media)
Year: 2022
Subjects: Lernfabriken
Digitalisierung
Lehrkräftebildung
Hochschulausbildung
digitaler Lernraum

description: Der Anspruch, ein berufliches Lernen in komplexen und vernetzten Systemen wie einer Lernfabrik zu ermöglichen, führt zu einer neuen didaktischen Herausforderung für die beruflichen Schulen in Deutschland. Die Herausforderung besteht darin, eine komplexe und digitalisierte Arbeitswelt realitätsnah abzubilden und trotzdem lernhaltige, problem- und berufsbezogene Aufgaben generieren zu können. Bisher haben sich nur wenige Hochschulen mit der Implementierung der Lernfabriken in die berufliche Lehrkräftebildung beschäftigt. Der Beitrag beschreibt die Potentiale von Lernfabriken für die berufliche Lehrkräftebildung und zeigt den Stand der Umsetzung der beruflichen Lernfabriken in Baden-Württemberg auf.
Efficient Type Checking for Path Polymorphism
Creators: name: Edi, Juan
name: Viso, Andrés
name: Bonelli, Eduardo
Publisher: name: arXiv
Year: 2017
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: A type system combining type application, constants as types, union types (associative, commutative and idempotent) and recursive types has recently been proposed for statically typing path polymorphism, the ability to define functions that can operate uniformly over recursively specified applicative data structures. A typical pattern such functions resort to is $x\,y$ which decomposes a compound, in other words any applicative tree structure, into its parts. We study type-checking for this type system in two stages. First we propose algorithms for checking type equivalence and subtyping based on coinductive characterizations of those relations. We then formulate a syntax-directed presentation and prove its equivalence with the original one. This yields a type-checking algorithm which unfortunately has exponential time complexity in the worst case. A second algorithm is then proposed, based on automata techniques, which yields a polynomial-time type-checking algorithm.
Controlling uncertainty in aptamer selection
Creators: name: Spill, Fabian
name: Weinstein, Zohar B.
name: Shemirani, Atena Irani
name: Ho, Nga
name: Desai, Darash
name: Zaman, Muhammad H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: The search for high-affinity aptamers for targets such as proteins, small molecules, or cancer cells remains a formidable endeavor. Systematic Evolution of Ligands by EXponential Enrichment (SELEX) offers an iterative process to discover these aptamers through evolutionary selection of high-affinity candidates from a highly diverse random pool. This randomness dictates an unknown population distribution of fitness parameters, encoded by the binding affinities, toward SELEX targets. Adding to this uncertainty, repeating SELEX under identical conditions may lead to variable outcomes. These uncertainties pose a challenge when tuning selection pressures to isolate high-affinity ligands. Here, we present a novel stochastic hybrid model that describes the evolutionary selection of aptamers in order to explore the impact of these unknowns. To our surprise, we find that even single copies of high-affinity ligands in a pool of billions can strongly influence population dynamics, yet their survival is highly dependent on chance. We perform Monte Carlo simulations to explore the impact of environmental parameters, such as the target concentration, on selection efficiency in SELEX and identify new strategies to control these uncertainties to ultimately improve the outcome and speed of this time- and resource-intensive process.
description: 6 pages, 8 figures, supporting information on the journal webpage
Puncture black hole initial data: a single domain Galerkin-Collocation method for trumpet and wormhole data sets
Creators: name: Clemente, P. C. M.
name: de Oliveira, H. P.
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present a single domain Galerkin-Collocation method to calculate puncture initial data sets for single and binary, either in the trumpet or wormhole geometries. The combination of aspects belonging to the Galerkin and the Collocation methods together with the adoption of spherical coordinates in all cases show to be very effective. We have proposed a unified expression for the conformal factor to describe trumpet and spinning black holes. In particular, for the spinning trumpet black holes, we have exhibited the deformation of the limit surface due to the spin from a sphere to an oblate spheroid. We have also revisited the energy content in the trumpet and wormhole puncture data sets. The algorithm can be extended to describe binary black holes.
description: 9 figures
Thermal Disk Winds in X-ray Binaries: Realistic Heating and Cooling Rates Give Rise to Slow, but Massive Outflows
Creators: name: Higginbottom, Nick
name: Proga, Daniel
name: Knigge, Christian
name: Long, Knox S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: A number of X-ray binaries exhibit clear evidence for the presence of disk winds in the high/soft state. A promising driving mechanism for these outflows is mass loss driven by the thermal expansion of X-ray heated material in the outer disk atmosphere. Higginbottom \& Proga recently demonstrated that the properties of thermally-driven winds depend critically on the shape of the thermal equilibrium curve, since this determines the thermal stability of the irradiated material. For a given spectral energy distribution, the thermal equilibrium curve depends on exact balance between the various heating and cooling mechanisms at work. Most previous work on thermally-driven disk winds relied an analytical approximation to these rates. Here, we use the photoionization code \textsc{cloudy} to generate realistic heating and cooling rates which we then use in a 2.5D hydrodynamic model computed in ZEUS to simulate thermal winds in a typical black-hole X-ray binary. We find that these heating and cooling rates produce a significantly more complex thermal equilibrium curve, with dramatically different stability properties. The resulting flow, calculated in the optically thin limit, is qualitatively different from flows calculated using approximate analytical rates. Specifically, our thermal disk wind is much denser and slower, with a mass-loss rate that is a factor of two higher and characteristic velocities that are a factor of three lower. The low velocity of the flow -- $v_{max} \simeq 200$~km~s$^{-1}$ -- may be difficult to reconcile with observations. However, the high mass-loss rate -- 15$\times$ the accretion rate -- is promising, since it has the potential to destabilize the disk. Thermally-driven disk winds may therefore provide a mechanism for state changes.
description: 10 Page, 8 figures, Accepted for publication in ApJ
Investigation of the rotational spectrum of CH$_3$$^{17}$OH and its tentative detection toward Sagittarius B2(N)
Creators: name: Müller, Holger S. P.
name: Ilyushin, Vadim V.
name: Belloche, Arnaud
name: Lewen, Frank
name: Schlemmer, Stephan
Publisher: name: arXiv
Year: 2024
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Methanol is an abundant molecule in space. The column density of CH$_3^{18}$OH is in some star-forming regions so high that the search for CH$_3^{17}$OH is promising. But only very few transition frequencies of CH$_3^{17}$OH with a microwave accuracy have been published thus far. We recorded the rotational spectrum of CH$_3^{17}$OH between 38 and 1095 GHz employing a methanol sample enriched in $^{17}$O to 20\%. A torsion-rotation Hamiltonian model based on the rho-axis method was employed to fit the data, as in our previous studies. We searched for rotational transitions of CH$_3^{17}$OH in the imaging spectral line survey ReMoCA obtained with the Atacama Large Millimeter/submillimeter Array (ALMA) toward the high-mass star-forming region Sgr B2(N). The observed spectra were modeled under the assumption of local thermodynamic equilibrium (LTE). The assignments cover $0 \le J \le 45$, $K_a \le 16$, and mainly the $v_ t = 0$ and 1 torsional states. The Hamiltonian model describes our data well. The model was applied to derive a line list for radio-astronomical observations. We report a tentative detection of CH$_3^{17}$OH along with secure detections of the more abundant isotopologs of methanol toward Sgr B2(N2b). The derived column densities yield isotopic ratios $^{12}$C/$^{13}$C = 25, $^{16}$O/$^{18}$O = 240, and $^{18}$O/$^{17}$O = 3.3, which are consistent with values found earlier for other molecules in Sgr B2. The agreement between the $^{18}$O/$^{17}$O isotopic ratio that we obtained for methanol and the $^{18}$O/$^{17}$O ratios reported in the past for other molecules in Sgr B2(N) strongly supports our tentative interstellar identification of CH$_3^{17}$OH. The accuracy of the derived line list is sufficient for further radio astronomical searches for this methanol isotopolog toward other star-forming regions.
description: 16 pages, including tables, figures, references and appendices. Abstract slightly shortened. Astronomy and Astrophysics, accepted for publication
Dark sectors and enhanced $h\to τμ$ transitions
Creators: name: Galon, Iftah
name: Zupan, Jure
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: LHC searches with $τ$ leptons in the final state are always inclusive in missing-energy sources. A signal in the flavor-violating Higgs decay search, $h\toτμ$, could therefore equally well be due to a flavor conserving decay, but with an extended decay topology with additional invisible particles. We demonstrate this with the three-body decay $h\toτμφ$, where $φ$ is a flavorful mediator decaying to a dark-sector. This scenario can give thermal relic dark matter that carries lepton flavor charges, a realistic structure of the charged lepton masses, and explain the anomalous magnetic moment of the muon, $(g-2)μ$, while simultaneously obey all indirect constraints from flavor-changing neutral currents. Another potentially observable consequence is the broadening of the collinear mass distributions in the $h\to τμ$ searches.
description: 22 pages, 5 figures
title: Band 4: Politische Demokratie
title: zwischen gefühligem Populismus und ethischem Humanismus, zwischen Schwarmintelligenz und Hackschutzordnung, zwischen Systemerhalt und Disruption, zwischen Land und Stadt; Wesen und Reform der Mitte
titleType: Subtitle
Creators: name: Montenbruck, Axel
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: Demokratie
subject: Politik
subject: 300 Sozialwissenschaften::320 Politikwissenschaft::321 Staatsformen und Regierungssysteme
subject: 300 Sozialwissenschaften::340 Recht::340 Recht

description: Den großen Rahmen umspannt die Schriftenreihe mit dem Titel „Natur und Recht, Politik, Ethik“. Die ersten beiden Bände beschäftigen sich mit der Natur-Ethik. Der dritte Band ist der Erklärung des Unrechts und dem Umgang mit ihm gewidmet. Nun folgt der vierte, der die Politik zu Gegenstand erhebt. Wie die anderen, so soll auch dieses Buch einzeln zu lesen sein. Eine gemeinsame Leitidee bildet das universelle Prinzip der Selbstorganisation aller Systeme. Sie eröffnet den Weg zur politischen Selbstorganisation in der Form der Demokratie. Die politische Demokratie wiederum bietet ein erlebbares Beispiel für die Selbstorganisation. Die drei Fragen nach Wesen, Wert und Reformen der Demokratie springen vor allem dann in den Blick, wenn die Demokratie sich, wie gegenwärtig, in einer inneren Krise befindet.