cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
LHS 1140 b is a potentially habitable water world
Creators: name: Damiano, Mario
name: Bello-Arufe, Aaron
name: Yang, Jeehyun
name: Hu, Renyu
Publisher: name: arXiv
Year: 2024
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: LHS 1140 b is a small planet orbiting in the habitable zone of its M4.5V dwarf host. Recent mass and radius constraints have indicated that it has either a thick H$_2$-rich atmosphere or substantial water by mass. Here we present a transmission spectrum of LHS 1140 b between 1.7 and 5.2 $μ$m, obtained using the NIRSpec instrument on JWST. By combining spectral retrievals and self-consistent atmospheric models, we show that the transmission spectrum is inconsistent with H$_2$-rich atmospheres with varied size and metallicity, leaving a water world as the remaining scenario to explain the planet's low density. Specifically, a H$_2$-rich atmosphere would result in prominent spectral features of CH$_4$ or CO$_2$ on this planet, but they are not seen in the transmission spectrum. Instead, the data favors a high-mean-molecular-weight atmosphere (possibly N$_2$-dominated with H$_2$O and CO$_2$) with a modest confidence. Forming the planet by accreting C- and N-bearing ices could naturally give rise to a CO$_2$- or N$_2$-dominated atmosphere, and if the planet evolves to or has the climate-stabilizing mechanism to maintain a moderate-size CO$_2$/N$_2$-dominated atmosphere, the planet could have liquid-water oceans. Our models suggest CO$_2$ absorption features with an expected signal of 20 ppm at 4.2 $μ$m. As the existence of an atmosphere on TRAPPIST-1 planets is uncertain, LHS 1140 b may well present the best current opportunity to detect and characterize a habitable world.
description: 20 pages, 10 figures, 9 tables, accepted for publication in ApJL
The Real No-Boundary Wave Function in Lorentzian Quantum Cosmology
Creators: name: Dorronsoro, Juan Diaz
name: Halliwell, Jonathan J.
name: Hartle, James B.
name: Hertog, Thomas
name: Janssen, Oliver
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is shown that the standard no-boundary wave function has a natural expression in terms of a Lorentzian path integral with its contour defined by Picard-Lefschetz theory. The wave function is real, satisfies the Wheeler-DeWitt equation and predicts an ensemble of asymptotically classical, inflationary universes with nearly-Gaussian fluctuations and with a smooth semiclassical origin.
description: 1 + 10.5 + 2.5 pages, 2 figures. v2: minor changes and added references
Excitonic giant-dipole potentials in cuprous oxide
Creators: name: Kurz, Markus
name: Grünwald, Peter
name: Scheel, Stefan
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this work we predict the existence of a novel species of Wannier excitons when exposed to crossed electric and magnetic fields. In particular, we present a theory of giant-dipole excitons in $\textrm{Cu}_2\rm O$ in crossed fields. Within our theoretical approach we perform a pseudoseparation of the center-of-mass motion for the field-dressed excitonic species, thereby obtaining an effective single-particle Hamiltonian for the relative motion. For arbitrary gauge fields we exactly separate the gauge-dependent kinetic energy terms from the effective single-particle interaction potential. Depending on the applied field strengths and the specific field orientation, the potential for the relative motion of electron and hole exhibits an outer well at spatial separations up to several micrometers and depths up to $380\, μ\rm eV$, leading to possible permanent excitonic electric dipole moments of around three million Debye.
description: 11 pages, 6 figures, 1 table, only minor changes compared to the first version, accepted for publication in Phys. Rev. B (in print)
Determinant Diagrammatic Monte Carlo in the Thermodynamic Limit
Creators: name: Rossi, Riccardo
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We present a simple trick that allows to consider the sum of all connected Feynman diagrams at fixed position of interaction vertices for general fermionic models. With our approach one achieves superior performance compared to Diagrammatic Monte Carlo, while rendering the algorithmic part dramatically simpler. As we consider the sum of all connected diagrams at once, we allow for cancellations between diagrams with different signs, alleviating the sign problem. Moreover, the complexity of the calculation grows exponentially with the order of the expansion, which should be constrasted with the factorial growth of the standard diagrammatic technique. We illustrate the efficiency of the technique for the two-dimensional Fermi-Hubbard model.
description: 5 pages, 4 figures
title: Horst Michel - Leben und Werk für die gute Form
Creators: name: Bach, Anita
Publisher: name: Bauhaus-Universität Weimar
Year: 2007
Subjects: subject: Michel, Horst
subject: 720

description: Wissenschaftliches Kolloquium vom 27. bis 30. Juni 1989 in Weimar an der Hochschule für Architektur und Bauwesen zum Thema: ‚Produktivkraftentwicklung und Umweltgestaltung. Sozialer und wissenschaftlich-technischer Fortschritt in ihren Auswirkungen auf Architektur und industrielle Formgestaltung in unserer Zeit. Zum 100. Geburtstag von Hannes Meyer'
description: Produktivkraftentwicklung und Umweltgestaltung, sozialer und wissenschaftlich-technischer Fortschritt in ihren Wirkungen auf Architektur und industrielle Formgestaltung in unserer Zeit: 5. Internationales Bauhaus-Kolloquium Weimar 1989, vol. 36, 1990, no. 1-3, p. 129
description: Wissenschaftliche Zeitschrift der Hochschule für Architektur und Bauwesen Weimar, vol. 36, 1990, no. 1-3, p. 129
title: Design und moderne Medien
Creators: name: Hirdina, Heinz
Publisher: name: Bauhaus-Universität Weimar
Year: 2007
Subjects: subject: Design
subject: Neue Medien
subject: 720

description: Wissenschaftliches Kolloquium vom 27. bis 30. Juni 1989 in Weimar an der Hochschule für Architektur und Bauwesen zum Thema: ‚Produktivkraftentwicklung und Umweltgestaltung. Sozialer und wissenschaftlich-technischer Fortschritt in ihren Auswirkungen auf Architektur und industrielle Formgestaltung in unserer Zeit. Zum 100. Geburtstag von Hannes Meyer'
description: Produktivkraftentwicklung und Umweltgestaltung, sozialer und wissenschaftlich-technischer Fortschritt in ihren Wirkungen auf Architektur und industrielle Formgestaltung in unserer Zeit: 5. Internationales Bauhaus-Kolloquium Weimar 1989, vol. 36, 1990, no. 1-3, p. 131
description: Wissenschaftliche Zeitschrift der Hochschule für Architektur und Bauwesen Weimar, vol. 36, 1990, no. 1-3, p. 131
Strong density of definable types and closed ordered differential fields
Creators: name: Brouette, Quentin
name: Kovacsics, Pablo Cubides
name: Point, Francoise
Publisher: name: arXiv
Year: 2017
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03C64, 12H05

description: The following strong form of density of definable types is introduced for theories T admitting a fibered dimension function d: given a model M of T and a definable subset X of M^n, there is a definable type p in X, definable over a code for X and of the same d-dimension as X. Both o-minimal theories and the theory of closed ordered differential fields (CODF) are shown to have this property. As an application, we derive a new proof of elimination of imaginaries for CODF.
description: There was a mistake page 3, spotted by Anand Pillay, on the canonical base of a type. (It did not affect the results of the paper.)
How Is Collective Identity Possible in Democracies? Political Integration and the Leitkultur Debate in Germany
Creators: name: Bein, Simon
Publisher: name: Universität Regensburg
Year: 2022
Subjects: subject: Integration, Political Culture, Identity Politics, Citizenship, Systems Theory
subject: 320 Politik

description: The quest for a common collective identity has become a challenge for modern democracy: Liberal demands for greater inclusion and individual freedom, aspirations for a strong and solidaric political community, as well as nationalist or right-wing populist calls for exclusion and a preservation of hegemonic national identities are creating tensions that cannot be overlooked. This article therefore formulates the central question of how collective identity can be possible in a liberal democracy. Based on a case study on Germany, it will therefore be examined whether Leitkultur as a model of political integration can serve in generating a functional democratic collective identity. The necessary benchmarks guiding the analysis will be defined beforehand from a systems-theoretical perspective, balancing inclusion and exclusion within three crucial dimensions: normative basics, historic continuity, and affirmative bindings. The results show that a static definition of a German Leitkultur would in the long run neither achieve functional inclusion nor be able to generate the necessary cohesion of a political community, especially regarding the second and third identity dimensions.
High Resolution Magnetic Resonance Spectroscopy Using Solid-State Spins
Creators: name: Bucher, Dominik B.
name: Glenn, David R.
name: Lee, Junghyun
name: Lukin, Mikhail D.
name: Park, Hongkun
name: Walsworth, Ronald L.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We demonstrate a synchronized readout (SR) technique for spectrally selective detection of oscillating magnetic fields with sub-millihertz resolution, using coherent manipulation of solid state spins. The SR technique is implemented in a sensitive magnetometer (~50 picotesla/Hz^(1/2)) based on nitrogen vacancy (NV) centers in diamond, and used to detect nuclear magnetic resonance (NMR) signals from liquid-state samples. We obtain NMR spectral resolution ~3 Hz, which is nearly two orders of magnitude narrower than previously demonstrated with NV based techniques, using a sample volume of ~1 picoliter. This is the first application of NV-detected NMR to sense Boltzmann-polarized nuclear spin magnetization, and the first to observe chemical shifts and J-couplings.
A fresh look at the determination of |V_cb| from B-> D^* l nu
Creators: name: Bigi, Dante
name: Gambino, Paolo
name: Schacht, Stefan
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: We use recent Belle results on $\bar{B}^0\rightarrow D^{*+}l^-\barν_l$ decays to extract the CKM element $|V_{cb}|$ with two different but well-founded parameterizations of the form factors. We show that the CLN and BGL parameterizations lead to quite different results for $|V_{cb}|$ and provide a simple explanation of this unexpected behaviour. A long lasting discrepancy between the inclusive and exclusive determinations of $|V_{cb}|$ may have to be thoroughly reconsidered.
description: 6 pages. A few clarifications added. Matches published version
NFDI4Earth: Improving Research Data Management in the Earth System Sciences
Creators: name: Bernard, Lars
name: Henzen, Christin
name: Degbelo, Auriol
name: Nüst, Daniel
name: Seegert, Jörg
Publisher: name: Zenodo
Year: 2023
Subjects: NFDI4Earth
CoRDI

description: Poster for abstract at CoRDI 2023. Abstract DOI: https://doi.org/10.52825/cordi.v1i.288 The increasing availability of digital research products – typically encompassing data and software – in the Earth System Sciences (ESS) calls for new approaches to facilitate the management and reuse of these digital resources. NFDI4Earth addresses this gap and targets the harmonization of services related to digital research products in the ESS. In our initial phase, we aim to support researchers in 1) discovering and exploring relevant data and software sources, 2) exploratory spatial data analysis, 3) solving research data management problems and 4) creating and publishing information products. This abstract briefly presents concepts and the first results of the harmonization efforts within NFDI4Earth. It touches upon four points: the harmonization of resource descriptions, the harmonization of ESS-specific support for research data management (RDM), joint training activities for researchers in the ESS, and the harmonization of discovery and publishing workflows.
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/).
The effect of real and virtual photons in the di-lepton channel at the LHC
Creators: name: Accomando, Elena
name: Fiaschi, Juri
name: Hautmann, Francesco
name: Moretti, Stefano
name: Shepherd-Themistocleous, Claire H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a study of di-lepton production at the CERN Large Hadron Collider with a particular focus on the contribution resulting from both real and virtual photons in the initial state. We discuss the region of phase space in which the invariant mass of the lepton pair is of the order of several TeV, where searches for new physics phenomena yielding a di-lepton signature are presently carried out. We study both the yield and associated uncertainties for all possible topologies in photon-induced di-lepton production and compare these with what is expected in the standard Drell-Yan channel, where quark-antiquark pairs are responsible for the production of lepton pairs. We analyse the impact of these QED contributions on the expected Standard Model background and on searches for new physics. In this latter case, we use the production of an extra heavy $Z^\prime$-boson predicted by the Sequential Standard Model (SSM) as a benchmark process.
description: 9 pages, 5 figures
Dynamics of cosmological perturbations in modified Brans-Dicke cosmology with matter-scalar field interaction
Creators: name: Kofinas, Georgios
name: Lima, Nelson A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this work we focus on a novel completion of the well-known Brans-Dicke theory that introduces an interaction between the dark energy and dark matter sectors, known as complete Brans-Dicke (CBD) theory. We obtain viable cosmological accelerating solutions that fit Supernovae observations with great precision without any scalar potential $V(ϕ)$. We use these solutions to explore the impact of the CBD theory on the large scale structure by studying the dynamics of its linear perturbations. We observe a growing behavior of the lensing potential $Φ_{+}$ at late-times, while the growth rate is actually suppressed relatively to $Λ$CDM, which allows the CBD theory to provide a competitive fit to current RSD measurements of $fσ_{8}$. However, we also observe that the theory exhibits a pathological change of sign in the effective gravitational constant concerning the perturbations on sub-horizon scales that could pose a challenge to its validity.
description: 20 pages, 5 figues. Version 2 with minor revisions to match manuscript accepted by PRD
Because Data Shall Grow (and we With it)
Creators: name: Rakers, Julia
name: Miller, Bernhard
name: Mohrbacher, Julia
name: Nüst, Daniel
name: Schrade, Torsten
name: Seegert, Jörg
name: Vater, Christian
name: Wiljes, Cord
name: Simon, Holger
Publisher: name: Zenodo
Year: 2023
Subjects: CC-BY-US
Cultural Change
NFDI
Open Scholarship

description: Poster for conference abstract: https://doi.org/10.52825/cordi.v1i.278 Research data are a valuable asset of their own and individual researchers as well as the research community as a whole can benefit through data sharing practices and open science. These benefits include but are not limited to higher data quality or the more efficient use of time and financial resources. Despite these potential gains, data sharing is not widespread yet and processes of cultural change are needed to reap the benefits of data sharing. Against this background, the NFDI can function as a platform for discussion and provides a network that extends beyond individual research bubbles in the name of common interests and facilitate cultural change processes towards data sharing. A first collaborative workshop in April 2023 identified four central clusters of interest including 1. policies, strategies and funding; 2. communities, workshops and multipliers; 3. publications and 4. collaboration, communication and error cultures. Departing from this, we contemplate developing a vision on how to further encourage cultural change in the NFDI through a series of workshops. As a result, a vision of cultural change within and with the NFDI will be published by the end of 2023 to further guide the processes to facilitate cultural change. A first step could be to change the guiding metaphor for data: Not “Gold” or “Oil”, but “Humus” for healthy growth of a collaborative data ecosystem.
Gorenstein simplices and the associated finite abelian groups
Creators: name: Tsuchiya, Akiyoshi
Publisher: name: arXiv
Year: 2017
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 52B05, 52B20

description: It is known that a lattice simplex of dimension $d$ corresponds a finite abelian subgroup of $(\mathbb{R}/\mathbb{Z})^{d+1}$. Conversely, given a finite abelian subgroup of $(\mathbb{R}/\mathbb{Z})^{d+1}$ such that the sum of all entries of each element is an integer, we can obtain a lattice simplex of dimension $d$. In this paper, we discuss a characterization of Gorenstein simplices in terms of the associated finite abelian groups. In particular, we present complete characterizations of Gorenstein simplices whose normalized volume equals $p,p^2$ and $pq$, where $p$ and $q$ are prime numbers with $p \neq q$. Moreover, we compute the volume of the dual simplices of Gorenstein simplices.
description: 18 pages, to appear in European Journal of Combinatorics
Whisker growth on Sn thin film accelerated under gamma-ray irradiation
Creators: name: Killefer, Morgan
name: Borra, Vamsi
name: Al-Bayati, Ahmed
name: Georgiev, Daniel G.
name: Karpov, Victor G.
name: Parsai, I. Eshmael
name: Shvydka, Diana
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report on growth of tin (Sn) metal whiskers that is significantly accelerated under gamma-ray irradiation. The studied Sn thin film, evaporated on glass substrate, was subjected to a total of ~60 hours of irradiation over the course of 30 days. The irradiated sample demonstrated the enhanced development, in both whisker densities and lengths, resulting in an acceleration factor of ~50. This makes gamma-ray irradiation a candidate tool for accelerated testing of whisker propensity. We attribute the observed enhancement to electrostatic fields created by charged defects in the glass substrate under ionizing radiation of gamma-rays.
description: 8 pages, 4 figures
Improving temporal resolution of ultrafast electron diffraction by eliminating arrival time jitter induced by radiofrequency bunch compression cavities
Creators: name: Franssen, J. G. H.
name: Luiten, O. J.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: The temporal resolution of sub-relativistic ultrafast electron diffraction (UED) is generally limited by radio frequency (RF) phase and amplitude jitter of the RF lenses that are used to compress the electron pulses. We theoretically show how to circumvent this limitation by using a combination of several RF compression cavities. We show that if powered by the same RF source and with a proper choice of RF field strengths, RF phases and distances between the cavities, the combined arrival time jitter due to RF phase jitter of the cavities is cancelled at the compression point. We also show that the effect of RF amplitude jitter on the temporal resolution is negligible when passing through the cavity at a RF phase optimal for (de)compression. This will allow improvement of the temporal resolution in UED experiments to well below 100 fs.
Optical conductivity in multiferroic GaV$_4$S$_8$ and GeV$_4$S$_8$: Phonons and electronic transitions
Creators: name: Reschke, S.
name: Mayr, F.
name: Wang, Zhe
name: Lunkenheimer, P.
name: Li, W.
name: Szaller, D.
name: Bordács, S.
name: Kézsmárki, I.
name: Tsurkan, V.
name: Loidl, A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report on optical spectroscopy on the lacunar spinels GaV$_4$S$_8$ and GeV$_4$S$_8$ in the spectral range from 100 to 23000 cm$^{-1}$ and for temperatures from 5 to 300 K. These multiferroic spinel systems reveal Jahn-Teller driven ferroelectricity and complex magnetic order at low temperatures. We study the infrared-active phonon modes and the low-lying electronic excitations in the cubic high-temperature phase, as well as in the orbitally and in the magnetically ordered low-temperature phases. We compare the phonon modes in these two compounds, which undergo different symmetry-lowering Jahn-Teller transitions into ferroelectric and orbitally ordered phases, and exhibit different magnetic ground states. We follow the splitting of the phonon modes at the structural phase transition and detect additional splittings at the onset of antiferromagnetic order in GeV$_4$S$_8$. We observe electronic transitions within the $d$-derived bands of the V$_4$ clusters and document a significant influence of the structural and magnetic phase transitions on the narrow electronic band gaps.
description: 12 pages, 10 figures
Electromagnetic properties of terbium gallium garnet at millikelvin temperatures and single photon energy
Creators: name: Kostylev, Nikita
name: Goryachev, Maxim
name: Bushev, Pavel
name: Tobar, Michael E.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Electromagnetic properties of single crystal terbium gallium garnet (TGG) are characterised from room down to millikelvin temperatures using the whispering gallery mode method. Microwave spectroscopy is performed at low powers equivalent to a few photons in energy and conducted as functions of the magnetic field and temperature. A phase transition is detected close to the temperature of 3.5 K. This is observed for multiple whispering gallery modes causing an abrupt negative frequency shift and a change in transmission due to extra losses in the new phase caused by a change in complex magnetic susceptibility.
description: 5 pages, 6 figures
Physical Properties and Catalogue of EW-type Eclipsing Binaries Observed by LAMOST
Creators: name: Qian, S. -B.
name: He, J. -J.
name: Zhang, J.
name: Zhu, L. -Y.
name: Shi, X. -D.
name: Zhao, E. -G.
name: Zhou, X.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Numerous EWs were discovered by several deep photometric survey and there are about 40785 EW-type binary systems listed in the international variable star index (VSX) by March 13, 2017. 7938 of them were observed by LAMOST by November 30, 2016 and their spectral types were given. Stellar atmospheric parameters of 5363 EW-type binary stars were determined based on good spectroscopic observations. In the paper, those EWs were catalogued and their properties are analyzed. The distributions of the orbital period (P), the effect temperature (T), the gravitational acceleration (Log(g)), the metallicity ([Fe/H]) and the radial velocity (RV) are presented for those observed EW-type systems. It is shown that about 80.6\% sample stars have metallicity below zero indicating that EW-type systems are old stellar population. This is in agreement with the the conclusion that the EW binaries are formed from moderately close binaries through angular momentum loss via magnetic braking that takes a few hundred million to a few billion years. The unusual high metallicities of a few percent of EWs may be caused by contaminating of material from the evolution of unseen neutron stars and black holes in the systems. The correlations between the orbital period and the effect temperature, the gravitational acceleration and the metallicity are presented and their scatters are mainly caused by (i) the presence of the third bodies and (ii) the wrong determined periods sometimes. It is shown that some EW contain evolved component stars and the physical properties of EWs are mainly depending on their orbital periods. It is found that the extremely short-period EWs may be older than their long-period cousins because they have lower metallicities. This reveals that they have a longer timescale of pre-contact evolution and their formation and evolution are mainly driven by angular momentum loss via magnetic braking.
description: 20 pages, 16 figures; Accepted for publication in Research in Astronomy and Astrophysics (RAA)
Fluorophore signal detection and imaging enhancement in high refractive index nanowire biosensors
Creators: name: Anttu, Nicklas
Publisher: name: arXiv
Year: 2024
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: High refractive index semiconductor nanowires have recently been demonstrated experimentally as an efficient platform for enhancing the signal in fluorescence-based biosensors. Here, we study through modelling how a vertical GaP nanowire (i) enhances the excitation intensity at the position of the fluorophore attached to the nanowire sidewall, (ii) enhances the probability to collect photons emitted from the fluorophore by directing them preferentially into the numerical aperture of the collection objective, and (iii) through the Purcell effect increases the quantum yield of the fluorophore. With appropriate choice for the geometry of the nanowire, we can reach a larger than $10^2$ enhancement in signal compared to a corresponding conventional planar biosensor platform. We model also imaging-based detection. There, we find that thanks to waveguiding in the nanowire, we can beat the limitations set by the depth of view in conventional microscopy, enabling the use of a long nanowire to enhance the binding-area for fluorophores. As an example, we can focus to the top of a 4000 nm long nanowire and reach a 25 times sharper image from a fluorophore at the bottom of the nanowire, as compared to such a 4000 nm defocusing in a conventional planar biosensor platform.
Effect of relativistic acceleration on continuous variable quantum teleportation and dense coding
Creators: name: Grochowski, Piotr T.
name: Rajchel-Mieldzioć, Grzegorz
name: Kiałka, Filip
name: Dragan, Andrzej
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate how relativistic acceleration of the observers can affect the performance of the quantum teleportation and dense coding for continuous variable states of localized wavepackets. Such protocols are typically optimized for symmetric resources prepared in an inertial frame of reference. A mismatch of the sender's and the receiver's accelerations can introduce asymmetry to the shared entanglement, which has an effect on the efficiency of the protocol that goes beyond entanglement degradation due to acceleration. We show how these asymmetry losses can be reduced by an extra LOCC step in the protocols.
description: 11 pages, 11 figures
Quantum-phase-field concept of matter: Emergent gravity in the dynamic universe
Creators: name: Steinbach, Ingo
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: A monistic framework is set up where energy is the only fundamental substance. Different states of energy are ordered by a set of scalar qunatum-phase-fields. The dual elements of matter, mass and space, are described as volume- and gradient-energy contributions of the set of fields, respectively. Time and space are formulated as background-independent dynamic variables. The evolution equations of the body of the universe are derived from first principles of thermodynamics. Gravitational interaction emerges from quantum fluctuations in finite space. Application to a large number of fields predicts scale separation in space and repulsive action of masses distant beyond a marginal distance. The predicted marginal distance is compared to the size of the voids in the observable universe.
title: Kritische Anmerkungen zum bundesdeutschen Avantgardedesign der Gegenwart
Creators: name: Petsch, Joachim
Publisher: name: Bauhaus-Universität Weimar
Year: 2007
Subjects: subject: Design
subject: Moderne
subject: 720

description: Wissenschaftliches Kolloquium vom 27. bis 30. Juni 1989 in Weimar an der Hochschule für Architektur und Bauwesen zum Thema: ‚Produktivkraftentwicklung und Umweltgestaltung. Sozialer und wissenschaftlich-technischer Fortschritt in ihren Auswirkungen auf Architektur und industrielle Formgestaltung in unserer Zeit. Zum 100. Geburtstag von Hannes Meyer'
description: Produktivkraftentwicklung und Umweltgestaltung, sozialer und wissenschaftlich-technischer Fortschritt in ihren Wirkungen auf Architektur und industrielle Formgestaltung in unserer Zeit: 5. Internationales Bauhaus-Kolloquium Weimar 1989, vol. 36, 1990, no. 1-3, p. 133
description: Wissenschaftliche Zeitschrift der Hochschule für Architektur und Bauwesen Weimar, vol. 36, 1990, no. 1-3, p. 133
A new constraint on mean-field galactic dynamo theory
Creators: name: Chamandy, Luke
name: Singh, Nishant K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Appealing to an analytical result from mean-field theory, we show, using a generic galaxy model, that galactic dynamo action can be suppressed by small-scale magnetic fluctuations. This is caused by the magnetic analogue of the Rädler or $Ω\times J$ effect, where rotation-induced corrections to the mean-field turbulent transport result in what we interpret to be an effective reduction of the standard $α$ effect in the presence of small-scale magnetic fields.
description: 6 pages, 2 figures, 1 table, edited to match MNRAS version
title: Für eine ökologisch-ökonomische Produktion und Nutzung unserer geplanten Umwelt - 10 Thesen zum umweltschonenden Planen, zum energie- und kostensparenden Bauen und zum gesunden Wohnen
Creators: name: Minke, Gernot
Publisher: name: Bauhaus-Universität Weimar
Year: 2007
Subjects: subject: Wohnungsbau
subject: Umweltverträglichkeit
subject: 720

description: Wissenschaftliches Kolloquium vom 27. bis 30. Juni 1989 in Weimar an der Hochschule für Architektur und Bauwesen zum Thema: ‚Produktivkraftentwicklung und Umweltgestaltung. Sozialer und wissenschaftlich-technischer Fortschritt in ihren Auswirkungen auf Architektur und industrielle Formgestaltung in unserer Zeit. Zum 100. Geburtstag von Hannes Meyer'
description: Produktivkraftentwicklung und Umweltgestaltung, sozialer und wissenschaftlich-technischer Fortschritt in ihren Wirkungen auf Architektur und industrielle Formgestaltung in unserer Zeit: 5. Internationales Bauhaus-Kolloquium Weimar 1989, vol. 36, 1990, no. 1-3, p. 133
description: Wissenschaftliche Zeitschrift der Hochschule für Architektur und Bauwesen Weimar, vol. 36, 1990, no. 1-3, p. 133
Estimating the sensitivity of centrality measures w.r.t. measurement errors
Creators: name: Martin, Christoph
name: Niemeyer, Peter
Publisher: name: arXiv
Year: 2017
Subjects: subject: Social and Information Networks (cs.SI)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Most network studies rely on an observed network that differs from the underlying network which is obfuscated by measurement errors. It is well known that such errors can have a severe impact on the reliability of network metrics, especially on centrality measures: a more central node in the observed network might be less central in the underlying network. We introduce a metric for the reliability of centrality measures -- called sensitivity. Given two randomly chosen nodes, the sensitivity means the probability that the more central node in the observed network is also more central in the underlying network. The sensitivity concept relies on the underlying network which is usually not accessible. Therefore, we propose two methods to approximate the sensitivity. The iterative method, which simulates possible underlying networks for the estimation and the imputation method, which uses the sensitivity of the observed network for the estimation. Both methods rely on the observed network and assumptions about the underlying type of measurement error (e.g., the percentage of missing edges or nodes). Our experiments on real-world networks and random graphs show that the iterative method performs well in many cases. In contrast, the imputation method does not yield useful estimations for networks other than Erdős-Rényi graphs.
2004 02 01 IIA Kelly & Nelms Seeing Double
Creators: name: Kelly, Chris
name: Nelms, Chris
Publisher: name: figshare
Year: 2022
Subjects: subject: 150102 Auditing and Accountability
subject: FOS: Economics and business

description: It is startlingly easy for the same invoice to be input into an accounting system and paid more than once without ever being detected. Those who authorise invoices for payment are often members of management, who are not directly concerned with processing those invoices. After approving an invoice the line manager rightly assumes accounts payable will escort the approved invoice through the system, possibly unaware that accounts payable process hundreds or thousands of supplier invoices each day. Similarly, budget controls may not be sensitive to glitches at individual invoice level. This paper explores accounts payable traps and how to expose and remediate them using Microsoft Excel 2003 or higher. Publication Name: Internal Auditing and Business Risk Journal of the Institute of Internal Auditors UK
Existentially Closed Brouwerian Semilattices
Creators: name: Carai, Luca
name: Ghilardi, Silvio
Publisher: name: arXiv
Year: 2017
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03G25 (Primary), 03C10, 06D20 (Secondary)

description: The variety of Brouwerian semilattices is amalgamable and locally finite, hence by well-known results due to W. H. Wheeler, it has a model completion (whose models are the existentially closed structures). In this paper, we supply for such a model completion a finite and rather simple axiomatization.
description: 35 pages with 3 figures, revised sections 3 and 4, minor corrections in sections 1, 2 and 5, results unchanged
Kodaira-Spencer Anomalies with Stora-Zumino Method
Creators: name: Rovere, Davide
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Holomorphic diffeomorphism anomalies of $2\,n$-dimensional gravitational theories in Beltrami parametrisation (Kodaira-Spencer anomalies) are computed in the BRST framework, using an extension of the Stora-Zumino method. This method, which allows to compute anomalies in a very concise way, makes manifest the topological origin of anomalies. They have a clear geometric interpretation, since they are expressed in terms of Chern polynomials and Pontryagin invariants. The key ingredient is the formulation of the BRST transformations in terms of polyforms, whose total degree is the sum of the form degree and of the ghost number. This approach simplifies significantly the analysis available in literature and it allows to compute many other solutions. Namely, an anomaly, which was computed using different methods, is proved to be a consistent BRST anomaly, thereby supplementing a conclusion in a previous analysis.
description: Published version
A combinatorial proof of a formula of Biane and Chapuy
Creators: name: Chewi, Sinho
name: Anantharam, Venkat
Publisher: name: arXiv
Year: 2017
Subjects: subject: Combinatorics (math.CO)
subject: Discrete Mathematics (cs.DM)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 05C20, 05C50

description: Let $G$ be a simple strongly connected weighted directed graph. Let $\mathcal{G}$ denote the spanning tree graph of $G$. That is, the vertices of $\mathcal{G}$ consist of the directed rooted spanning trees on $G$, and the edges of $\mathcal{G}$ consist of pairs of trees $(t_i, t_j)$ such that $t_j$ can be obtained from $t_i$ by adding the edge from the root of $t_i$ to the root of $t_j$ and deleting the outgoing edge from the root of $t_j$. A formula for the ratio of the sum of the weights of the directed rooted spanning trees on $\mathcal{G}$ to the sum of the weights of the directed rooted spanning trees on $G$ was recently given by Biane and Chapuy. We provide an alternative proof of this formula, which is both simple and combinatorial. The proof involves working with the stochastic zeta function of an irreducible Markov chain. By generalizing the stochastic zeta function we also recover the general result of Biane and Chapuy which gives a formula for the determinant of the Schrödinger matrix on $\mathcal{G}$ corresponding to a given Schrödinger matrix on $G$, in terms of the minors of the latter matrix.
description: 12 pages
A unimodular Liouville hyperbolic souvlaki --- an appendix to [arXiv:1603.06712]
Creators: name: Pete, Gábor
name: Ray, Gourab
Publisher: name: arXiv
Year: 2017
Subjects: subject: Probability (math.PR)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: Carmesin, Federici, and Georgakopoulos [arXiv:1603.06712] constructed a transient hyperbolic graph that has no transient subtrees and that has the Liouville property for harmonic functions. We modify their construction to get a unimodular random graph with the same properties.
description: 4 pages. A new question from Itai Benjamini has been added
Coarse-Coded Symbol Memories and Their Properties
Creators: name: Rosenfeld, Ronald
name: Touretzky, David
Publisher: name: Carnegie Mellon University
Year: 2022
Subjects: subject: 80602 Computer-Human Interaction
subject: FOS: Psychology

description: Coarse-coded symbol memories have appeared in several neural network symbol processing models. They are static memories that use overlapping codes to store multiple items simultaneously.
A finite state projection algorithm for the stationary solution of the chemical master equation
Creators: name: Gupta, Ankit
name: Mikelson, Jan
name: Khammash, Mustafa
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Probability (math.PR)
subject: FOS: Biological sciences
subject: FOS: Mathematics
subject: 60J22, 60J27, 60H35, 65C40, 92E20

description: The chemical master equation (CME) is frequently used in systems biology to quantify the effects of stochastic fluctuations that arise due to biomolecular species with low copy numbers. The CME is a system of ordinary differential equations that describes the evolution of probability density for each population vector in the state-space of the stochastic reaction dynamics. For many examples of interest, this state-space is infinite, making it difficult to obtain exact solutions of the CME. To deal with this problem, the Finite State Projection (FSP) algorithm was developed by Munsky and Khammash (Jour. Chem. Phys. 2006), to provide approximate solutions to the CME by truncating the state-space. The FSP works well for finite time-periods but it cannot be used for estimating the stationary solutions of CMEs, which are often of interest in systems biology. The aim of this paper is to develop a version of FSP which we refer to as the stationary FSP (sFSP) that allows one to obtain accurate approximations of the stationary solutions of a CME by solving a finite linear-algebraic system that yields the stationary distribution of a continuous-time Markov chain over the truncated state-space. We derive bounds for the approximation error incurred by sFSP and we establish that under certain stability conditions, these errors can be made arbitrarily small by appropriately expanding the truncated state-space. We provide several examples to illustrate our sFSP method and demonstrate its efficiency in estimating the stationary distributions. In particular, we show that using a quantised tensor train (QTT) implementation of our sFSP method, problems admitting more than 100 million states can be efficiently solved.
description: 8 figures
Supplementary document for Optical Frequency Domain Reflectometry Shape Sensing Using an Extruded Optical Fiber Triplet for Intra-Arterial Guidance - 6163913.pdf
Creators: name: Francoeur, Jacynthe
name: Roberge, Anthony
name: Lorre, Pierre
name: Monet, Frédéric
name: Wright, Cory
name: Kadoury, Samuel
name: Kashyap, Raman
Publisher: name: Optica Publishing Group
Year: 2022
Subjects: Uncategorized

description: Additional data, presented in Figures and a Table, tu support elements from the manuscript.
title: Das Altersheim der Henry und Emma Budge-Stiftung in Frankfurt am Main - Intention und Realität
Creators: name: Kramer, Lore
Publisher: name: Bauhaus-Universität Weimar
Year: 2007
Subjects: subject: Kramer, Ferdinand
subject: Moser, Werner Max
subject: Stam, Mart
subject: Altenheim
subject: 720

description: Wissenschaftliches Kolloquium vom 27. bis 30. Juni 1989 in Weimar an der Hochschule für Architektur und Bauwesen zum Thema: ‚Produktivkraftentwicklung und Umweltgestaltung. Sozialer und wissenschaftlich-technischer Fortschritt in ihren Auswirkungen auf Architektur und industrielle Formgestaltung in unserer Zeit. Zum 100. Geburtstag von Hannes Meyer'
description: Produktivkraftentwicklung und Umweltgestaltung, sozialer und wissenschaftlich-technischer Fortschritt in ihren Wirkungen auf Architektur und industrielle Formgestaltung in unserer Zeit: 5. Internationales Bauhaus-Kolloquium Weimar 1989, vol. 36, 1990, no. 1-3, p. 138
description: Wissenschaftliche Zeitschrift der Hochschule für Architektur und Bauwesen Weimar, vol. 36, 1990, no. 1-3, p. 138
title: Interaction of the gas vesicle proteins GvpA, GvpC, GvpN, and GvpO of Halobacterium salinarum
Creators: name: Jost, Alisa
name: Pfeifer, Felicitas
Publisher: name: Frontiers Media S.A.
Year: 2022

description: The interactions of the four gas vesicle proteins GvpA, C, N, and O were investigated by split-GFP and pulldown assays. GvpA forms the ribs of the gas vesicle shell, whereas GvpC is attached to the exterior surface and stabilizes the gas vesicle structure. The AAA-ATPase GvpN as well as GvpO is found in much lower amounts. GvpN and GvpO formed homodimers and also the GvpN/GvpO heterodimer; both interacted with the C-terminal domain of GvpC when tested by split-GFP. When analyzed by pulldown assays, GvpN and GvpO also selected GvpA. The N-and C-terminal fragments of GvpC dimerized as Cterm/Cterm and Cterm/Nterm, but not as Nterm/Nterm. These interactions at both termini might lead to a network of GvpC molecules at the gas vesicle surface. However, a GvpA/GvpC interaction was not detectable, suggesting that the contact of both proteins is either mediated by another Gvp, or requires different structures that might form when GvpA is aggregated in the gas vesicle shell. Interactions of GvpA, C, N, and O were also studied with the accessory proteins GvpF through GvpM by split-GFP. GvpN bound GvpL only, whereas GvpO interacted with GvpF, I, and L, and the C-terminal domain of GvpC contacted GvpF, H, I, and L. GvpA/GvpA interactions were difficult to detect by split-GFP, but GvpA selected except for GvpI, K, and L all other accessory Gvp in pulldown assays. We will discuss the implications of these findings on gas-vesicle assembly.
Consecutive single-crystal-to-single-crystal isomerization of novel octamolybdate anions within a microporous hybrid framework with robust water sorption properties
Creators: name: Ruiz-Bilbao, Estibaliz
name: Iturrospe, Amaia
name: Reinoso, Santiago
name: Artetxe, Beñat
name: Beobide, Garikoitz
name: San Felices, Leire
name: Lezama, Luis
name: Gutiérrez-Zorrilla, Juan M.
name: Darwish, Shaza
name: SENSHARMA, DEBOBROTO
name: ZAWOROTKO, MICHAEL
Publisher: name: University of Limerick
Year: 2023
Subjects: classificationCode: 34
subject: Chemical sciences
subject: FOS: Chemical sciences

description: The 3D hybrid framework [{Cu(cyclam)}3(k-Mo8O27)]· 14H2O (1) (cyclam=1,4,8,11-tetraazacyclotetradecane) undergoes sequential single-crystal-to-single-crystal transformations upon heating to afford two different anhydrous phases (2 a and 3a). These transitions modify the framework dimensionality and enable the isomerization of k-octamolybdate (k-Mo8) anions into λ (2 a) and μ (3 a) forms through metal migration. Hydration of 3a involves condensation of one water molecule to the cluster to afford the γ-Mo8 isomer in 4, which dehydrates back into 3a through the 6a intermediate. In contrast, 2a reversibly hydrates to form 5, exhibiting the same Mo8 cluster as that of 1. It is remarkable that three of the Mo8 clusters (k, λ and μ) are new and that up to three different microporous phases can be isolated from 1 (2 a, 3a, and 6a). Water vapor sorption analyses show high recyclability and the highest uptake values for POM-based systems. The isotherms display an abrupt step at low humidity level desirable for humidity control devices or water harvesting in drylands.
title: Hommage Otto Lindig
Creators: name: Jakobson, Hans-Peter
Publisher: name: Bauhaus-Universität Weimar
Year: 2007
Subjects: subject: Lindig, Otto
subject: 720

description: Wissenschaftliches Kolloquium vom 27. bis 30. Juni 1989 in Weimar an der Hochschule für Architektur und Bauwesen zum Thema: ‚Produktivkraftentwicklung und Umweltgestaltung. Sozialer und wissenschaftlich-technischer Fortschritt in ihren Auswirkungen auf Architektur und industrielle Formgestaltung in unserer Zeit. Zum 100. Geburtstag von Hannes Meyer'
description: Produktivkraftentwicklung und Umweltgestaltung, sozialer und wissenschaftlich-technischer Fortschritt in ihren Wirkungen auf Architektur und industrielle Formgestaltung in unserer Zeit: 5. Internationales Bauhaus-Kolloquium Weimar 1989, vol. 36, 1990, no. 1-3, p. 141
description: Wissenschaftliche Zeitschrift der Hochschule für Architektur und Bauwesen Weimar, vol. 36, 1990, no. 1-3, p. 141