cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
ARPES observation of isotropic superconducting gaps in isovalent Ru-substituted Ba(Fe$_{0.75}$Ru$_{0.25}$)$_2$As$_2$
Creators: name: Xu, N.
name: Richard, P.
name: Wang, X. -P.
name: Shi, X.
name: van Roekeghem, A.
name: Qian, T.
name: Ieki, E.
name: Nakayama, K.
name: Sato, T.
name: Rienks, E.
name: Thirupathaiah, S.
name: Xing, J.
name: Wen, H. -H.
name: Shi, M.
name: Takahashi, T.
name: Ding, H.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We used high-energy resolution angle-resolved photoemission spectroscopy to extract the momentum dependence of the superconducting gap of Ru-substituted Ba(Fe$_{0.75}$Ru$_{0.25}$)$_2$As$_2$ ($T_c = 15$ K). Despite a strong out-of-plane warping of the Fermi surface, the magnitude of the superconducting gap observed experimentally is nearly isotropic and independent of the out-of-plane momentum. More precisely, we respectively observed 5.7 meV and 4.5 meV superconducting gaps on the inner and outer $Γ$-centered hole Fermi surface pockets, whereas a 4.8 meV gap is recorded on the M-centered electron Fermi surface pockets. Our results are consistent with the $J_1-J_2$ model with a dominant antiferromagnetic exchange interaction between the next-nearest Fe neighbors.
description: 5 pages, 4 figures
On black holes with scalar hairs
Creators: name: Gao, Changjun
name: Qiu, Jianhui
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: By using the Taylor series method and the solution-generating method, we construct exact black hole solutions with minimally coupled scalar field. We find that the black hole solutions can have many hairs except for the physical mass. These hairs come from the scalar potential. Unlike the mass, there is no symmetry corresponding to these hairs, thus they are not conserved and one cannot understand them as Noether charges. They arise as coupling constants. Although there are many hairs, the black hole has only one horizon. The scalar potential becomes negative for sufficient large $ϕ$ (or in the vicinity of black hole singularity). Therefore, the no-scalar-hair theorem does not apply to our solutions since the latter does not obey the dominant energy condition. Although the scalar potential becomes negative for sufficient large $ϕ$, the black holes are stable to both odd parity perturbations and scalar perturbations. As for even parity perturbations, we find there remains parameter space for the stability of the black holes. Finally, the black hole thermodynamics are developed.
description: 12 pages, 4 figures
Recent Advances in Modelling Geodetic Time Series and Applications for Earth Science and Environmental Monitoring
Creators: name: He, Xiaoxing
name: Montillet, Jean-Philippe
name: Li, Zhao
name: Kermarrec, Gaël
name: Fernandes, Rui
name: Zhou, Feng
Publisher: name: Basel : MDPI
Year: 2022
Subjects: subject: climate change
subject: environment
subject: geodetic time series analysis
subject: GNSS
subject: stochastic noise modelling
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Geodesy is the science of accurately measuring the topography of the earth (geometric shape and size), its orientation in space, and its gravity field. With the advances in our knowledge and technology, this scientific field has extended to the understanding of geodynamical phenomena such as crustal motion, tides, and polar motion. This Special Issue is dedicated to the recent advances in modelling geodetic time series recorded using various instruments. Due to the stochastic noise properties inherent in each of the time series, careful modelling is necessary in order to extract accurate geophysical information with realistic associated uncertainties (statistically sufficient). The analyzed data have been recorded with various space missions or ground-based instruments. It is impossible to be comprehensive in the vast and dynamic field that is Geodesy, particularly so-called “Environmental Geodesy”, which intends to understand the Earth’s geodynamics by monitoring any changes in our environment. This field has gained much attention in the past two decades due to the need by the international community to understand how climate change modifies our environment. Therefore, this Special Issue collects some articles which emphasize the recent development of specific algorithms or methodologies to study particular natural phenomena related to the geodynamics of the earth’s crust and climate change.
Higgs Couplings and Naturalness
Creators: name: Farina, Marco
name: Perelstein, Maxim
name: Lorier, Nicolas Rey-Le
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Many extensions of the Standard Model postulate the existence of new weakly coupled particles, the top partners, at or below the TeV scale. The role of the top partners is to cancel the quadratic divergence in the Higgs mass parameter due to top loops. We point out the generic correlation between naturalness (the degree of fine-tuning required to obtain the observed electroweak scale), and the size of top partner loop contributions to Higgs couplings to photons and gluons. If the fine-tuning is required to be at or below a certain level, a model-independent lower bound on the deviations of these Higgs couplings from the Standard Model can be placed (assuming no cancellations between contributions from various sources). Conversely, if a precise measurement of the Higgs couplings shows no deviation from the Standard Model, a certain amount of fine-tuning would be required. We quantify this connection, and argue that a measurement of the Higgs couplings at the per-cent level would provide a serious and robust test of naturalness.
description: 17 pages, 6 figures. v2: minor clarifications and references added
Country-wide Retrieval of Forest Structure From Optical and SAR Satellite Imagery With Deep Ensembles
Creators: name: Becker, Alexander
name: Russo, Stefania
name: Puliti, Stefano
name: Lang, Nico
name: Schindler, Konrad
name: Wegner, Jan Dirk
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Monitoring and managing Earth's forests in an informed manner is an important requirement for addressing challenges like biodiversity loss and climate change. While traditional in situ or aerial campaigns for forest assessments provide accurate data for analysis at regional level, scaling them to entire countries and beyond with high temporal resolution is hardly possible. In this work, we propose a method based on deep ensembles that densely estimates forest structure variables at country-scale with 10-meter resolution, using freely available satellite imagery as input. Our method jointly transforms Sentinel-2 optical images and Sentinel-1 synthetic-aperture radar images into maps of five different forest structure variables: 95th height percentile, mean height, density, Gini coefficient, and fractional cover. We train and test our model on reference data from 41 airborne laser scanning missions across Norway and demonstrate that it is able to generalize to unseen test regions, achieving normalized mean absolute errors between 11% and 15%, depending on the variable. Our work is also the first to propose a variant of so-called Bayesian deep learning to densely predict multiple forest structure variables with well-calibrated uncertainty estimates from satellite imagery. The uncertainty information increases the trustworthiness of the model and its suitability for downstream tasks that require reliable confidence estimates as a basis for decision making. We present an extensive set of experiments to validate the accuracy of the predicted maps as well as the quality of the predicted uncertainties. To demonstrate scalability, we provide Norway-wide maps for the five forest structure variables.
Seedling development and juvenile growth of two yellow passion fruit genotypes as influenced by poultry manure rates
Creators: name: Ndukwe, Okorie
name: Ezeoke, Amarachi
name: Orji, Chidiebere
name: Umeokafor, Chinelo
name: Aba, Simon
name: Baiyeri, Paul
Publisher: name: Plovdiv [u.a.] : [Verlag nicht ermittelbar]
Year: 2022
Subjects: subject: dry matter partitioning
subject: fertilizer
subject: nursery
subject: Passiflora edulis
subject: vine
subject: Dewey Decimal Classification::600 | Technik::630 | Landwirtschaft, Veterinärmedizin
subject: Dewey Decimal Classification::600 | Technik::640 | Hauswirtschaft und Familienleben

description: Yellow passion fruit, consumed mainly as juice in many parts of the world, is an emerging fruit crop in south-eastern Nigeria. Farmers need vigorous seedlings for optimum performance in the field. For such, a study was conducted to evaluate the effect of poultry manure (PM) rates on seedling development and juvenile growth of yellow passion fruit. Two yellow passion fruit genotypes (‘KPF-4’ and ‘Conventional’) received five poultry manure rates (0, 10, 20, 30 and 40 t/ha). The experiment was laid out as a split plot in completely randomized design and replicated thrice. The result revealed that the early seedling growth performance of the two genotypes did not statistically (P>0.05) vary. On the other hand, there was a progressive increase in the growth parameters with increasing rate of PM. Specifically, the application of 20 t/ha PM produced tallest seedlings, broadest stems and highest number of leaves in the first five weeks after PM application. However, most vigorous vines (vine length, number of leaves, fresh weights of leaves, shoots, roots) and highest accumulation of dry matter were produced by KPF-4 vines grown with 40 t/ha PM although these did not vary significantly with values recorded with 20 t/ha PM application. In view of the economics of fertilizer use, it was recommended to apply poultry manure at 20 t/ha during nursery in the study area.
El sitio de Bredá
Creators: name: Russo, Antonella
Publisher: name: Zenodo
Year: 2021
Subjects: Calderón
El sitio de Bredá
Métrica dramática
Segmentación dramática
Bibliografía

description: Calderón Digital: base de datos, argumentos y motivos del teatro de Calderón (dir. Fausta Antonucci). Ficha dedicada a El sitio de Bredá, con datos bibliográficos primarios y secundarios, fecha probable de composición, cómputo de las formas métricas, análisis de las coordenadas espacio-temporales, adscripción genérica y sinopsis argumental detallada, con indicación de los principales motivos (diegéticos y simbólicos) y propuesta de segmentación articulada según los cambios de forma métrica, de espacio y tiempo dramáticos.
Die Tafel von Brigetio und das Aufhören der Militärdiplome
Creators: name: Kraft, Konrad
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2018

description: -
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 28, Nr. 3/4 (1944-1950)
Additional file 4 of Incidence and risk factors for cholelithiasis after bariatric surgery: a systematic review and meta-analysis
Creators: name: Dai, Yu
name: Luo, Bujiangcun
name: Li, Weizheng
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology
subject: Science Policy
subject: Hematology

description: Additional file 4. PRISMA checklist.
Ein Bronzeschöpfgefäß aus Levitzow, Kr. Malchin (Mecklenburg)
Creators: name: Hundt, Hans-Jürgen
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2018

description: -
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 28, Nr. 3/4 (1944-1950)
GEO-FPT: a model of the galaxy bispectrum at mildly non-linear scales
Creators: name: Novell-Masot, Sergi
name: Gualdi, Davide
name: Gil-Marín, Héctor
name: Verde, Licia
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present GEO-FPT (Geometric Fitted Perturbation Theory), a new model for the galaxy bispectrum anisotropic signal in redshift space, with functional form rooted in perturbation theory. It also models the dependence of the bispectrum with the geometric properties of the triangles in Fourier space, and has a broader regime of validity than state-of-the-art theoretical models based on perturbation theory. We calibrate the free parameters of this model using high-resolution dark matter simulations and perform stringent tests to show that GEO-FPT describes the galaxy bispectrum accurately up to scales of $k\simeq0.12 h{\rm Mpc}^{-1}$ for different cosmological models, as well as for biased tracers of the dark matter field, considering a survey volume of $100$ (Gpc $h^{-1})^3$. In particular, a joint analysis of the power spectrum and bispectrum anisotropic signals, taking into account their full covariance matrix, reveals that the relevant physical quantities -- the BAO peak position (along and across the line-of-sight), and the growth of structure parameters times the amplitude of dark matter fluctuations, $fσ_8$-- are recovered in an unbiased way, with an accuracy better than $0.4\%$ and $2\%$ respectively (which is our $2σ$ statistical limit of the systematic error estimate). In addition, the bispectrum signal breaks the $fσ_8$ degeneracy without detectable bias: $f$ and $σ_8$ are recovered with better than $2.7\%$ and $3.8\%$ accuracy respectively (which is our $2σ$ statistical limit of the systematic error estimate). GEO-FPT boosts the applicability of the bispectrum signal of galaxy surveys beyond the current limitation of $k\lesssim 0.08\,h$ Mpc$^{-1}$ % and makes the bispectrum a key statistic to unlock the information content from the mildly non-linear regime in the on-going and forthcoming galaxy redshift surveys.
description: 37 pages, 14 figures. To be submitted to JCAP, comments welcome
C. H. V. Sutherland, Anglo-Saxon Gold Coinage in the Light of the Crondall Hoard
Creators: name: Werner, Joachim
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2018

description: Rezension zu: C. H. V. Sutherland, Anglo-Saxon Gold Coinage in the Light of the Crondall Hoard. Oxford University Press 1948. 106 S., 5 Taf.
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 28, Nr. 3/4 (1944-1950)
Contextuality and Wigner negativity are equivalent for continuous-variable quantum measurements
Creators: name: Booth, Robert I.
name: Chabaud, Ulysse
name: Emeriau, Pierre-Emmanuel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Quantum computers will provide considerable speedups with respect to their classical counterparts. However, the identification of the innately quantum features that enable these speedups is challenging. In the continuous-variable setting - a promising paradigm for the realisation of universal, scalable, and fault-tolerant quantum computing - contextuality and Wigner negativity have been perceived as two such distinct resources. Here we show that they are in fact equivalent for the standard models of continuous-variable quantum computing. While our results provide a unifying picture of continuous-variable resources for quantum speedup, they also pave the way towards practical demonstrations of continuous-variable contextuality, and shed light on the significance of negative probabilities in phase-space descriptions of quantum mechanics.
description: v2: accepted for publication in PRL; 11 pages + 8 pages of appendices; 1 figure
Precessing binary black holes as engines of electromagnetic helicity
Creators: name: Sanchis-Gual, Nicolas
name: del Rio, Adrian
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We show that binary black hole mergers with precessing evolution can potentially excite photons from the quantum vacuum in such a way that total helicity is not preserved in the process. Helicity violation is allowed by quantum fluctuations that spoil the electric-magnetic duality symmetry of the classical Maxwell theory without charges. We show here that precessing binary black hole systems in astrophysics generate a flux of circularly polarized gravitational waves which, in turn, provides the required helical background that triggers this quantum effect. Solving the fully non-linear Einstein's equations with numerical relativity we explore the parameter space of binary systems and extract the detailed dependence of the quantum effect with the spins of the two black holes. We also introduce a set of diagrammatic techniques that allows us to predict when a binary black hole merger can or cannot emit circularly polarized gravitational radiation, based on mirror-symmetry considerations. This framework allows to understand and to interpret correctly the numerical results, and to predict the outcomes in potentially interesting astrophysical systems.
description: Minor update
All-optically induced ultrafast photocurrents: Beyond the instantaneous coherent response
Creators: name: Priyadarshi, Shekhar
name: Pierz, Klaus
name: Bieler, Mark
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: It is demonstrated that the non-instantaneous response of the optically induced coherent polarization tremendously influences the real-space shift of electronic charges in semiconductors. The possibility to coherently control this real-space shift with temporally non-overlapping excitation pulses allows for the observation of a new type of shift current, which only exists for certain polarization-shaped excitation pulses and vanishes in the continuous-wave limit. In contrast to previously studied shift currents, the new current requires a phase mismatch between two orthogonal transition dipole moments and leads, within a nonlinear second-order description, to a tensor which is antisymmetric with respect to the order of the two exciting electric field amplitudes. These observations, which can even be made at room temperature and are expected to occur in a variety of semiconductor crystal classes, contribute to a better understanding of light-matter interaction involving degenerate bands. Thus, they are expected to prove important for future studies of coherent and nonlinear optical effects in semiconductors.
Gravitational Redshift Induces Quantum Interference
Creators: name: Bruschi, David Edward
name: Schell, Andreas Wolfgang
Publisher: name: Berlin : Wiley-VCH
Year: 2022
Subjects: subject: gravitational redshift
subject: quantum field theory
subject: quantum interference
subject: quantum optics
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Quantum field theory in curved spacetime is used to show that gravitational redshift induces a unitary transformation on the quantum state of propagating photons. It is found that the transformation is a mode-mixing operation, and a protocol that exploits gravity to induce a Hong–Ou–Mandel-like interference effect on the state of two photons is devised. It is discussed how the results of this work can provide a demonstration of quantum field theory in curved spacetime.
Improved astrometry for the Bohannan & Epps catalogue
Creators: name: Howarth, Ian D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Aims: Accurate astrometry is required to reliably cross-match 20th-century catalogues against 21st-century surveys. The present work aims to provide such astrometry for the 625 entries of the Bohannan & Epps (BE74) catalogue of H$α$ emission-line stars. Methods: BE74 targets have been individually identified in digital images and, in most cases, unambiguously matched to entries in the UCAC4 astrometric catalogue. Results: Sub-arcsecond astrometry is now available for almost all BE74 stars. Several identification errors in the literature illustrate the perils of relying solely on positional coincidences using poorer-quality astrometry.
description: 3 pages, 1 figure. Accepted in A&A
Onset of Bloch oscillations in the almost-strong-field regime
Creators: name: Reislöhner, Jan
name: Kim, Doyeong
name: Babushkin, Ihar
name: Pfeiffer, Adrian N.
Publisher: name: [London] : Nature Publishing Group UK
Year: 2022
Subjects: subject: harmonic analysis
subject: nonlinearity
subject: optical method
subject: oscillation
subject: crystal
subject: Dewey Decimal Classification::500 | Naturwissenschaften

description: In the field of high-order harmonic generation from solids, the electron motion typically exceeds the edge of the first Brillouin zone. In conventional nonlinear optics, on the other hand, the excursion of band electrons is negligible. Here, we investigate the transition from conventional nonlinear optics to the regime where the crystal electrons begin to explore the first Brillouin zone. It is found that the nonlinear optical response changes abruptly already before intraband currents due to ionization become dominant. This is observed by an interference structure in the third-order harmonic generation of few-cycle pulses in a non-collinear geometry. Although approaching Keldysh parameter γ = 1, this is not a strong-field effect in the original sense, because the iterative series still converges and reproduces the interference structure. The change of the nonlinear interband response is attributed to Bloch motion of the reversible (or transient or virtual) population, similar to the Bloch motion of the irreversible (or real) population which affects the intraband currents that have been observed in high-order harmonic generation.
Microscopic dynamics and an effective Landau-Zener transition in the quasi-adiabatic preparation of spatially ordered states of Rydberg excitations
Creators: name: Tzortzakakis, A. F.
name: Petrosyan, D.
name: Fleischhauer, M.
name: Mølmer, K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We examine the adiabatic preparation of spatially-ordered Rydberg excitations of atoms in finite one-dimensional lattices by frequency-chirped laser pulses, as realized in a number of recent experiments simulating quantum Ising model. Our aims are to unravel the microscopic mechanism of the phase transition from the unexcited state of atoms to the antiferromagnetic-like state of Rydberg excitations by traversing an extended gapless phase, and to estimate the preparation fidelity of the target state in a moderately sized system amenable to detailed numerical analysis. We find that, in the basis of the bare atomic states, the system climbs the ladder of Rydberg excitations predominantly along the strongest-amplitude paths towards the final ordered state. We show that, despite its complexity, the interacting many-body system can be described as an effective two-level system involving a pair of lowest-energy instantaneous collective eigenstates of the time-dependent Hamiltonian. The final preparation fidelity of the target state can then be well approximated by the Landau-Zener formula, while the nonadiabatic population leakage during the passage can be estimated using a perturbative approach applied to the instantaneous collective eigenstates.
description: close to the published version
Additional file 5 of Incidence and risk factors for cholelithiasis after bariatric surgery: a systematic review and meta-analysis
Creators: name: Dai, Yu
name: Luo, Bujiangcun
name: Li, Weizheng
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology
subject: Science Policy
subject: Hematology

description: Additional file 5. publication bias test. (a) DM; (b) Dyslipidemia; (c) Gender; (d) Hypertension; (e) Surgical procedure.
Enhanced pseudoelasticity of an Fe-Mn-Si-based shape memory alloy by applying microstructural engineering through recrystallization and precipitation
Creators: name: Khodaverdi, Hesamodin
name: Mohri, Maryam
name: Ghafoori, Elyas
name: Ghorabaei, Amir Sabet
name: Nili-Ahmadabadi, Mahmoud
Publisher: name: Rio de Janeiro : Elsevier
Year: 2022
Subjects: subject: Fe-17Mn-5Si-10Cr-4Ni-1(V-C) (wt.%)
subject: Fe-based shape memory alloy (SMA)
subject: Grain refinement
subject: Residual strain
subject: Superelasticity
subject: Dewey Decimal Classification::600 | Technik::670 | Industrielle und handwerkliche Fertigung

description: The aim of this work is to provide a novel understanding of pseudoelasticity mechanisms in an FeMnSi-based shape memory alloy and to utilize the identified parameters to control and enhance the mechanical behavior of the alloy. The alloy was processed by employing caliber rolling to an equivalent strain of 0.25 at room temperature. Various heat treatments from 530 to 1000 °C were applied to study the microstructural evolution and pseudoelasticity behavior during short-term post-deformation annealing (PDA) and aging. A minimum residual strain of 2.85% was achieved after 4% loading in tension by annealing the cold-worked sample at 925 °C for 50 min followed by aging at 750 °C for 6 h; this is the lowest ever reported residual strain for this alloy. Moreover, the absorbed energy increased from 17 to 22 J/cm3, indicating a 30% enhancement compared with the as-received aged sample. These improvements in pseudoelasticity and absorbed energy make this alloy more suitable for seismic damping application by providing more recentering after energy dissipation. The improvements are mainly attributed to grain refinement, which stimulates a uniform distribution of precipitates inside the austenite grains after PDA and aging. Additionally, grain refinement modifies the morphology and size of precipitates, resulting in an increased number of stacking faults and a high volume fraction of ϵ-martensite, and diminishes the probability of the intersection of ϵ-martensite laths with each other and subsequent α′-martensite formation.
title: Where is the Realism in the State’s ‘Hotchpotch’ Programme?
Creators: name: Sirr, Lorcan
Publisher: name: Technological University Dublin
Year: 2016

description: The publication of the new programme for government brought fewsurprises. It astonished nobody that two of its most significant components were ending the housing shortage and homelessness, and boosting jobs and rural development. The document weighs in at a hefty 155 pages, which averages out at 2.67 pages per government member and supporter. It seems as though every idea from every corner, no matter how unrealistic, was included to garner support. There were positives. It broadly identifies many pertinent issues, including the need for political leadership, tackling homelessness and promoting tenants’ rights. It aims to review building standards and says it will set targets for delivery (although it does not assign responsibility). It will maintain tax reliefs for landlords who accept social tenants.
Buckling-induced quadratic nonlinearity in silicon phonon waveguide structures
Creators: name: Kurosu, Megumi
name: Hatanaka, Daiki
name: Okamoto, Hajime
name: Yamaguchi, Hiroshi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: We fabricated and characterized a single-crystal silicon phonon waveguide structure with lead zirconate titanate (PZT) piezoelectric transducers. The compressive stress in a silicon-on-insulator wafer causes a membrane waveguide to buckle, leading to the quadratic nonlinearity. The PZT transducer integrated in an on-chip configuration enables us to excite high-intensity mechanical vibration, which allows the characterization of nonlinear behavior. We observed a softening nonlinear response as a function of the drive power and demonstrated the mode shift and frequency conversion. This is the first report of the nonlinear behavior caused by the quadratic nonlinearity in a buckled phonon waveguide structure. This study provides a method to control the sign and the order of nonlinearity in a phonon waveguide by utilizing the internal stress, which allows the precise manipulation of elastic waves in phononic integrated circuits.
Seeding Layer Approach for the Synthesis of Co-ZIF-90 Thin Films of Optical Quality
Creators: name: Keppler, Nils Christian
name: Fricke, Johanna
name: Schaate, Andreas
name: Hannebauer, Adrian
name: Hindricks, Karen Deli Josephine
name: Zailskas, Saskia
name: Behrens, Peter
Publisher: name: Washington, DC : ACS Publ.
Year: 2022
Subjects: subject: Chemical stability
subject: Cobalt compounds
subject: Deposition
subject: Film preparation
subject: Refractive index
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: The growth of zeolitic imidazolate framework (ZIF) thin films is an interesting topic, since ZIFs have a high thermal and chemical stability compared to many other MOFs. A variety of functionalities can be introduced via the imidazole linker molecule. Here, we report on a new approach for the preparation of thin films of a novel ZIF material: Co-ZIF-90. The preparation of thin films is possible on silicon or glass when ZIF-8 seeding layers are deposited first. The resulting constructions are effectively MOF-on-MOF layer systems. The synthesis procedure has been optimized with regard to obtaining high-quality thin films of Co-ZIF-90 on ZIF-8 for optical applications. Notably, the preparation of Co-ZIF-90 thin films is possible only by using a mixture of two different cobalt precursor salts (acetate and nitrate). The thin films are characterized in detail. With regard to the use as an optical material, UV-vis absorption spectra of the MOF-on-MOF constructs were measured and the refractive index of Co-ZIF-90 was determined using ellipsometry. Furthermore, the refractive index of the Co-ZIF-90 film can be modulated reversibly by the adsorption and desorption of water via the gas phase. The kinetics of this fast process are on the time scale of 1 s. In addition to the preparation of thin films, we obtained Co-ZIF-90 as a powder sample and basically characterized the powder. The approach to use an easy-to-crystallize ZIF-8 film as a seeding layer for the growth of films of other ZIFs may be extended as a general concept for the deposition of crystalline ZIF layers in such cases, where a direct deposition is difficult or not possible.
Additional file 1 of Gut microbiota modulates bleomycin-induced acute lung injury response in mice
Creators: name: Yoon, Young me
name: Hrusch, Cara L.
name: Fei, Na
name: Barrón, Gabriel M.
name: Mills, Kathleen A. M.
name: Hollinger, Maile K.
name: Velez, Tania E.
name: Leone, Vanessa A.
name: Chang, Eugene B.
name: Sperling, Anne I.
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Physiology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer

description: Additional file 1: Fig S1. Intratracheal LPS-induced ALI responses in mice housed in the two facilities. Fig S2. 16S rRNA sequencing of conventionalized ex-GF mice on D7 after BLM challenge. Fig S3. Full list of taxa resolved from fecal samples from donor and recipient mice in the Facility B-to-A FMT experiment. Fig S4. Unchanged lung injury outcome in Fac A microbiome recipients is not due to the lack of colonization of additional species. Fig S5. Examples of flow cytometry gating strategies and frequencies of spleen neutrophils in naive animals. Fig S6. Hematoxylin and eosin (H&E) staining of a mouse lung section on day 3 post-BLM challenge. Table S1. Frequencies of innate and adaptive immune cell populations in the lungs from unperturbed 15–17 weeks old animals raised in the respective housing facilities. Table S2. List of antibodies used for flow cytometry analysis.
Collisionally Stable Gas of Bosonic Dipolar Ground State Molecules
Creators: name: Bigagli, Niccolò
name: Warner, Claire
name: Yuan, Weijun
name: Zhang, Siwei
name: Stevenson, Ian
name: Karman, Tijs
name: Will, Sebastian
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Stable ultracold ensembles of dipolar molecules hold great promise for many-body quantum physics, but high inelastic loss rates have been a long-standing challenge. Recently, it was shown that gases of fermionic molecules can be effectively stabilized through external fields. However, many quantum applications will benefit from molecular ensembles with bosonic statistics. Here, we stabilize a bosonic gas of strongly dipolar NaCs molecules against inelastic losses via microwave shielding, decreasing losses by more than a factor of 200 and reaching lifetimes on the scale of 1 second. We also measure high elastic scattering rates, a result of strong dipolar interactions, and observe the anisotropic nature of dipolar collisions. Finally, we demonstrate evaporative cooling of a bosonic molecular gas to a temperature of 36(5) nK, increasing its phase-space density by a factor of 20. This work is a critical step towards the creation of a Bose-Einstein condensate of dipolar molecules.
description: 14 pages, 11 figures
Inversion of Different Cultivated Soil Types’ Salinity Using Hyperspectral Data and Machine Learning
Creators: name: Jia, Pingping
name: Zhang, Junhua
name: He, Wei
name: Yuan, Ding
name: Hu, Yi
name: Zamanian, Kazem
name: Jia, Keli
name: Zhao, Xiaoning
Publisher: name: Basel : MDPI
Year: 2022
Subjects: subject: Hetao Plain
subject: salinization
subject: soil degradation
subject: soil electrical conductivity
subject: soil quality
subject: variable projection importance
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Soil salinization is one of the main causes of global desertification and soil degradation. Although previous studies have investigated the hyperspectral inversion of soil salinity using machine learning, only a few have been based on soil types. Moreover, agricultural fields can be improved based on the accurate estimation of the soil salinity, according to the soil type. We collected field data relating to six salinized soils, Haplic Solonchaks (HSK), Stagnic Solonchaks (SSK), Calcic Sonlonchaks (CSK), Fluvic Solonchaks (FSK), Haplic Sonlontzs (HSN), and Takyr Solonetzs (TSN), in the Hetao Plain of the upper reaches of the Yellow River, and measured the in situ hyperspectral, pH, and electrical conductivity (EC) values of a total of 231 soil samples. The two-dimensional spectral index, topographic factors, climate factors, and soil texture were considered. Several models were used for the inversion of the saline soil types: partial least squares regression (PLSR), random forest (RF), extremely randomized trees (ERT), and ridge regression (RR). The spectral curves of the six salinized soil types were similar, but their reflectance sizes were different. The degree of salinization did not change according to the spectral reflectance of the soil types, and the related properties were inconsistent. The Pearson’s correlation coefficient (PCC) between the two-dimensional spectral index and the EC was much greater than that between the reflectance and EC in the original band. In the two-dimensional index, the PCC of the HSK-NDI was the largest (0.97), whereas in the original band, the PCC of the SSK400 nm was the largest (0.70). The two-dimensional spectral index (NDI, RI, and DI) and the characteristic bands were the most selected variables in the six salinized soil types, based on the variable projection importance analysis (VIP). The best inversion model for the HSK and FSK was the RF, whereas the best inversion model for the CSK, SSK, HSN, and TSN was the ERT, and the CSK-ERT had the best performance (R2 = 0.99, RMSE = 0.18, and RPIQ = 6.38). This study provides a reference for distinguishing various salinization types using hyperspectral reflectance and provides a foundation for the accurate monitoring of salinized soil via multispectral remote sensing.
The Linear-Time-Invariance Notion of the Koopman Analysis-Part 1: The Architecture, Practical Rendering on the Prism Wake, and Fluid-Structure Association
Creators: name: Li, Cruz Y.
name: Chen, Zengshun
name: Tse, Tim K. T.
name: Weerasuriya, Asiri Umenga
name: Zhang, Xuelin
name: Fu, Yunfei
name: Lin, Xisheng
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: This work proposes a Linear-Time-Invariance (LTI) notion to the Koopman analysis, finding an invariant subspace on which Koopman modes are consistent and physically meaningful. It also develops the Koopman-LTI architecture -- a systematic procedure to associate fluid excitation and structure surface pressure by matching Koopman eigen tuples, solving a longstanding problem for fluid-structure interactions. The architecture is data-driven and modular, accommodating all types of data and Koopman algorithms. Through a pedagogical demonstration on a prism wake and the rudimentary Dynamic Mode Decomposition algorithm, results show a near-exact linearization of nonlinear turbulence, with mean and rms errors of O-12 and O-9, respectively. The DMD also approximated the Koopman modes with O-8 error. The LTI reduced the subcritical prism wake during shear layer transition II into only six dominant excitation-response Koopman modal duplets. The upstream and crosswind walls constitute a dynamically unified interface dominated by only two mechanisms. The downstream wall remains a distinct interface and is dominated by four other mechanisms. The complete revelation of the prism wake essentially comes down to understanding the six mechanisms, which Part 2 (Li et al., 2022) will address by investigating the physical interpretations of the duplets' in-synch, phenomenological features. Finally, the current analysis also revealed w's trivial role in this convection-dominated free-shear flow, Reynolds stresses' spectral description of cascading eddies, vortices' sensitivity to dilation and indifference to distortion, and structure responses' origin in vortex activities.
description: 15 figures, 63 pages
A vertical inertial sensor with interferometric readout
Creators: name: Kranzhoff, S.L.
name: Lehmann, J.
name: Kirchhoff, R.
name: Carlassara, M.
name: Cooper, S.J.
name: Koch, P.
name: Leavey, S.
name: Lück, H.
name: Mow-Lowry, C.M.
name: Wöhler, J.
name: Von Wrangel, J.
name: Wu, D.S.
Publisher: name: Bristol : IOP Publ.
Year: 2022
Subjects: subject: active seismic isolation
subject: gravitational wave detection
subject: homodyne detection
subject: inertial sensing
subject: interferometry
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: High precision interferometers such as gravitational-wave detectors require complex seismic isolation systems in order to decouple the experiment from unwanted ground motion. Improved inertial sensors for active isolation potentially enhance the sensitivity of existing and future gravitational-wave detectors, especially below 30 Hz, and thereby increase the range of detectable astrophysical signals. This paper presents a vertical inertial sensor which senses the relative motion between an inertial test mass suspended by a blade spring and a seismically isolated platform. An interferometric readout was used which introduces low sensing noise, and preserves a large dynamic range due to fringe-counting. The expected sensitivity is comparable to other state-of-the-art interferometric inertial sensors and reaches values of 10 − 10 m ( H z 1 / 2 ) − 1 at 100 mHz and 10 − 12 m ( H z 1 / 2 ) − 1 at 1 Hz. The potential sensitivity improvement compared to commercial L-4C geophones is shown to be about two orders of magnitude at 10 mHz and 100 mHz and one order of magnitude at 1 Hz. The noise performance is expected to be limited by thermal noise of the inertial test mass suspension below 10 Hz. Further performance limitations of the sensor, such as tilt-to-vertical coupling from a non-perfect levelling of the test mass and nonlinearities in the interferometric readout, are also quantified and discussed.
Controlling the group velocity of colliding atomic Bose-Einstein condensates with Feshbach resonances
Creators: name: Mathew, Ranchu
name: Tiesinga, Eite
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report on a proposal to change the group velocity of a small Bose Einstein Condensate (BEC) upon collision with another BEC in analogy to slowing of light passing through dispersive media. We make use of ultracold collisions near a magnetic Feshbach resonance, which gives rise to a sharp variation in scattering length with collision energy and thereby changes the group velocity. A generalized Gross-Pitaveskii equation is derived for a small BEC moving through a larger stationary BEC. We denote the two condensates by laser and medium BEC, respectively, to highlight the analogy to a laser pulse travelling through a medium. We derive an expression for the group velocity in a homogeneous medium as well as for the difference in distance, $δ$, covered by the laser BEC in the presence and absence of a finite-sized medium BEC with a Thomas-Fermi density distribution. For a medium and laser of the same isotopic species, the shift $δ$ has an upper bound of twice the Thomas-Fermi radius of the medium. For typical narrow Feshbach resonances and a medium with number density $10^{15}$ cm$^{-3}$ up to 85% of the upper bound can be achieved, making the effect experimentally observable. We also derive constraints on the experimental realization of our proposal.
description: 5 pages, 3 figures
Analyzing Highly Correlated Chemical Toxicants Associated with Time to Pregnancy Using Discrete Survival Frailty Modeling Via Elastic Net
Creators: name: Saha, Abhisek
name: Sundaram, Rajeshwari
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applications (stat.AP)
subject: Computation (stat.CO)
subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Understanding the association between mixtures of environmental toxicants and time-to-pregnancy (TTP) is an important scientific question as sufficient evidence has emerged about the impact of individual toxicants on reproductive health and that individuals are exposed to a whole host of toxicants rather than an individual toxicant. Assessing mixtures of chemicals effects on TTP poses significant statistical challenges, namely (i) TTP being a discrete survival outcome, typically subject to left truncation and right censoring, (ii) chemical exposures being strongly correlated, (iii) accounting for some chemicals that bind to lipids, (iv) non-linear effects of some chemicals, and (v) high percentage concentration below the limit of detection (LOD) for some chemicals. We propose a discrete frailty modeling framework (named Discnet) that allows selection of correlated exposures while addressing the issues mentioned above. Discnet is shown to have better and stable FN and FP rates compared to alternative methods in various simulation settings. We did a detailed analysis of the LIFE Study, pertaining to polychlorinated biphenyls and time-to-pregnancy and found that older females, female exposure to cotinine (smoking), DDT conferred a delay in getting pregnant, which was consistent across prior sensitivity analyses to account for LOD as well as non-linear associations.
Einige Bemerkungen zu süddeutschem Hallstattglas
Creators: name: Dehn, Wolfgang
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2018

description: -
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 29, Nr. 1/2 (1951)
Lensing power spectrum of the Cosmic Microwave Background with deep polarization experiments
Creators: name: Legrand, Louis
name: Carron, Julien
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Precise reconstruction of the cosmic microwave background lensing potential can be achieved with deep polarization surveys by iteratively removing lensing-induced $B$ modes. We introduce a lensing spectrum estimator and its likelihood for such optimal iterative reconstruction. Our modelling share similarities to the state-of-the-art likelihoods for quadratic estimator-based (QE) lensing reconstruction. In particular, we generalize the $N_L^{(0)}$ and $N_L^{(1)}$ lensing biases, and design a realization-dependent spectrum debiaser, making this estimator robust to uncertainties in the data modelling. We demonstrate unbiased recovery of the cosmology using map-based reconstructions, focussing on lensing-only cosmological constraints and neutrino mass measurement in combination with CMB spectra and acoustic oscillation data. We find this spectrum estimator is essentially optimal and with a diagonal covariance matrix. For a CMB-S4 survey, this likelihood can double the constraints on the lensing amplitude compared to the QE on a wide range of scales, while at the same time keeping numerical cost under control and being robust to errors.
description: 10 pages, 7 figures, submitted to PRD