cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Large anomalous Hall effect and unusual domain switching in an orthorhombic antiferromagnetic material NbMnP
Creators: name: Kotegawa, Hisashi
name: Kuwata, Yoshiki
name: Huyen, Vu Thi Ngoc
name: Arai, Yuki
name: Tou, Hideki
name: Matsuda, Masaaki
name: Takeda, Keiki
name: Sugawara, Hitoshi
name: Suzuki, Michi-To
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Specific antiferromagnetic (AF) spin configurations generate large anomalous Hall effects (AHEs) even at zero magnetic field through nonvanishing Berry curvature in momentum space. In addition to restrictions on AF structures, suitable control of AF domains is essential to observe this effect without cancellations among its domains; therefore, compatible materials remain limited. Here we show that an orthorhombic noncollinear AF material, NbMnP, acquired AF structure-based AHE and controllability of the AF domains. Theoretical calculations indicated that a large Hall conductivity of $\sim230$ $Ω^{-1}$cm$^{-1}$ originated from the AF structure of NbMnP. Symmetry considerations explained the production of a small net magnetization, whose anisotropy enabled the generation and cancellation of the Hall responses using magnetic fields in different directions. Finally, asymmetric hysteresis in NbMnP shows potential for development of controllability of responses in AF materials.
description: 13 pages, 7 figures, including supplementary information
Impact of Background Oxygen Pressure on the Pulsed-Laser Deposition of ZnO Nanolayers and on Their Corresponding Performance as Electron Acceptors in PbS Quantum-Dot Solar Cells
Creators: name: Lopez, R.
name: Liu, H.
name: Starr, H.E.
name: Dong, Q.
name: Hara, Y.
name: Dempsey, J.L.
Publisher: name: American Chemical Society
Year: 2019

description: ZnO films are commonly employed as n-type semiconductors in heterojunctions with PbS colloidal quantum-dot (CQDs) films because of their outstanding optical transparency and electron acceptor properties, yet studies of the impact of ZnO film microstructure, composition, and defect qualities on the solar-cell performance are quite limited. Here we report on the fabrication of ZnO films via pulsed-laser deposition and use these films to investigate how different morphologies affect the PbS CQD solar-cell performance. By modification of the background gas O2 pressures during the ZnO deposition process, the device performance approaching a 7.8% energy conversion efficiency is achieved with an O2 pressure of 100 mTorr. Higher or lower O2 pressures led to significantly lower device efficiency. We employ various materials and device characterizations to highlight the differences in the physical properties introduced by the fabrication oxygen pressure. In particular, we have found that the differences in the type and density of ZnO oxygen defects are the key factors behind the dispersion in solar-cell performances.
New H-band Stellar Spectral Libraries for the SDSS-III/APOGEE survey
Creators: name: Zamora, O.
name: Garcia-Hernandez, D. A.
name: Prieto, C. Allende
name: Carrera, R.
name: Koesterke, L.
name: Edvardsson, B.
name: Castelli, F.
name: Plez, B.
name: Bizyaev, D.
name: Cunha, K.
name: Perez, A. E. Garcia
name: Gustafsson, B.
name: Holtzman, J. A.
name: Lawler, J. E.
name: Majewski, S. R.
name: Manchado, A.
name: Meszaros, Sz.
name: Shane, N.
name: Shetrone, M.
name: Smith, V. V.
name: Zasowski, G.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The Sloan Digital Sky Survey--III (SDSS--III) Apache Point Observatory Galactic Evolution Experiment (APOGEE) has obtained high resolution (R $\sim$ 22,500), high signal-to-noise ratio ($>$ 100) spectra in the H$-$band ($\sim$1.5$-$1.7 $μ$m) for about 146,000 stars in the Milky Way galaxy. We have computed spectral libraries with effective temperature ($T\rm{_{eff}}$) ranging from 3500 to 8000 K for the automated chemical analy\-sis of the survey data. The libraries, used to derive stellar parameters and abundances from the APOGEE spectra in the SDSS--III data release 12 (DR12), are based on ATLAS9 model atmospheres and the ASS$ε$T spectral synthesis code. We present a second set of libraries based on MARCS model atmospheres and the spectral synthesis code Turbospectrum. The ATLAS9/ASS$ε$T ($T\rm{_{eff}}$ = 3500$-$8000 K) and MARCS/Turbospectrum ($T\rm{_{eff}}$ = 3500$-$5500 K) grids cover a wide range of metallicity ($-$2.5 $\leq$ [M/H] $\leq$ $+$0.5 dex), surface gravity (0 $\leq$ log $g$ $\leq$ 5 dex), microturbulence (0.5 $\leq$ $ξ$ $\leq$ 8 km~s$^{-1}$), carbon ($-$1 $\leq$ [C/M] $\leq$ $+$1 dex), nitrogen ($-$1 $\leq$ [N/M] $\leq$ $+$1 dex), and $α$-element ($-$1 $\leq$ [$α$/M] $\leq$ $+$1 dex) variations, having thus seven dimensions. We compare the ATLAS9/ASS$ε$T and MARCS/Turbospectrum libraries and apply both of them to the analysis of the observed H$-$band spectra of the Sun and the K2 giant Arcturus, as well as to a selected sample of well-known giant stars observed at very high-resolution. The new APOGEE libraries are publicly available and can be employed for chemical studies in the H$-$band using other high-resolution spectrographs.
description: 45 pages, 11 figures; accepted for publication in the Astronomical Journal
title:  Lo spazio minimo e il miracolo
Creators: name: Fimiani  ,  Mariapaola
Publisher: name: Roma TrE-Press
Year: 2014

description: Le riflessioni sulle attuali forme della comunicazione confermano che la mentalità del nostro tempo è sempre più segnata da un diffuso miracolismo, dalla percezione che il mondo ridotto a una continua fluenza di "minimi" è sostanzialmente la scena del miracolo.
description: B@belonline vol. 16/17 Pensare Altrimenti
402. IgG4-RD and malignancy: Causal relationship or co-occurrence?
Creators: name: Gözde Kübra Yardımcı1,2,
Publisher: name: Zenodo
Year: 2022
Subjects: Vasculitis
ANCA
Abstracts
Giant Cell Arthritis
MPA
GPA
EGPA
Takayasu
IgA vasculitis

description: Background/ Objectives: IgG4-related disease (IgG4-RD) is a systemic immune-mediated disease with tumefactive lesions [1]. IgG4-RD sometimes presents with malignancy-like symptoms and may be mistaken for cancer or can be seen together with cancer. However, the data is scarce. In this study, we aimed to evaluate malignancies in a single-centre cohort of IgG4-RD. Methods: IgG4-RD patients who were referred to our vasculitis centre between Jan 2014 and Jun 2021 and fulfilled the Comprehensive Diagnostic Criteria for IgG4-RD were included in this study [2]. HUVAC database and hospital records were retrospectively evaluated for IgG4-RD patients’ age, gender, organ involvements, treatment details and malignancy history. Results: 97 IgG4-RD patients were assessed for malignancy. Six patients had been diagnosed as having malignancy, and the overall malignancy rate was %6.2. The figure shows the types of cancer and the temporal relationship between cancer and IgG4-RD diagnosis. Three patients have been diagnosed with IgG4-RD and malignancy simultaneously, and in the remainder, the diagnosis of cancer preceded the IgG4-RD by 1, 2, 9 and 23 years. No cases of malignancy were observed after the IgG4-RD diagnosis. Among IgG4-RD patients with a history of cancer four patients (66%) were smokers of former smokers. Conclusions: IgG4-RD could be related to different types of malignancies. But, the exact mechanism or causal relationship is still unknown. Development of synchronous cancer and IgG4RD at the same anatomic region might be associated with local auto-immunity, chronic local inflammation and cell-cycle dysregulation. Four of our patients having cancer history before IgG4RD diagnosis can be co-incidence or support the idea of IgG4-RD can arise in patients with a history of malignancy. A better understanding of the pathophysiologic relationship between cancer and IgG4-RD will provide better management of these patients. Disclosures: Professor Karadag: Received funding supprot Abbvie, Novartis, Roche, Viela-Bio, R-Pharm outside this study. Received consultancy fees and/or speaker fees from Abbvie, Abdi İbrahim, Amgen, Celltrion, Gilead, Farmanova, Lilly, Pfizer, Roche, UCB.
Development of high frequency and wide bandwidth Johnson noise thermometry
Creators: name: Crossno, Jesse
name: Liu, Xiaomeng
name: Ohki, Thomas A.
name: Kim, Philip
name: Fong, Kin Chung
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We develop a high frequency, wide bandwidth radiometer operating at room temperature, which augments the traditional technique of Johnson noise thermometry for nanoscale thermal transport studies. Employing low noise amplifiers and an analog multiplier operating at 2~GHz, auto- and cross-correlated Johnson noise measurements are performed in the temperature range of 3 to 300~K, achieving a sensitivity of 5.5~mK (110 ppm) in 1 second of integration time. This setup allows us to measure the thermal conductance of a boron nitride encapsulated monolayer graphene device over a wide temperature range. Our data shows a high power law (T$^{\sim4}$) deviation from the Wiedemann-Franz law above T$\sim$100~K.
description: 4 pages, 4 figures
Das Vaterunser und die Heiligung des göttlichen Namens im Judentum
Creators: name: Lenzen, Verena
Publisher: name: Internationale katholische Zeitschrift Communio
Year: 2022

description: Internationale katholische Zeitschrift Communio, Bd. 45 Nr. 1 (2016): Internationale katholische Zeitschrift Communio, Band 45, Heft 1
The Mass of Kepler-93b and The Composition of Terrestrial Planets
Creators: name: Dressing, Courtney D.
name: Charbonneau, David
name: Dumusque, Xavier
name: Gettel, Sara
name: Pepe, Francesco
name: Cameron, Andrew Collier
name: Latham, David W.
name: Molinari, Emilio
name: Udry, Stephane
name: Affer, Laura
name: Bonomo, Aldo S.
name: Buchhave, Lars A.
name: Cosentino, Rosario
name: Figueira, Pedro
name: Fiorenzano, Aldo F. M.
name: Harutyunyan, Avet
name: Haywood, Raphaelle D.
name: Johnson, John Asher
name: Lopez-Morales, Mercedes
name: Lovis, Christophe
name: Malavolta, Luca
name: Mayor, Michel
name: Micela, Giusi
name: Motalebi, Fatemeh
name: Nascimbeni, Valerio
name: Phillips, David F.
name: Piotto, Giampaolo
name: Pollacco, Don
name: Queloz, Didier
name: Rice, Ken
name: Sasselov, Dimitar
name: Segransan, Damien
name: Sozzetti, Alessandro
name: Szentgyorgyi, Andrew
name: Watson, Chris
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Kepler-93b is a 1.478 +/- 0.019 Earth radius planet with a 4.7 day period around a bright (V=10.2), astroseismically-characterized host star with a mass of 0.911+/-0.033 solar masses and a radius of 0.919+/-0.011 solar radii. Based on 86 radial velocity observations obtained with the HARPS-N spectrograph on the Telescopio Nazionale Galileo and 32 archival Keck/HIRES observations, we present a precise mass estimate of 4.02+/-0.68 Earth masses. The corresponding high density of 6.88+/-1.18 g/cc is consistent with a rocky composition of primarily iron and magnesium silicate. We compare Kepler-93b to other dense planets with well-constrained parameters and find that between 1-6 Earth masses, all dense planets including the Earth and Venus are well-described by the same fixed ratio of iron to magnesium silicate. There are as of yet no examples of such planets with masses > 6 Earth masses: All known planets in this mass regime have lower densities requiring significant fractions of volatiles or H/He gas. We also constrain the mass and period of the outer companion in the Kepler-93 system from the long-term radial velocity trend and archival adaptive optics images. As the sample of dense planets with well-constrained masses and radii continues to grow, we will be able to test whether the fixed compositional model found for the seven dense planets considered in this paper extends to the full population of 1-6 Earth mass planets.
description: 8 pages, 4 figures. Accepted for publication in ApJ
Emergent topological excitations in a two-dimensional quantum spin system
Creators: name: Shao, Hui
name: Guo, Wenan
name: Sandvik, Anders W.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the mechanism of decay of a topological (winding-number) excitation due to finite-size effects in a two-dimensional valence-bond solid state, realized in an $S=1/2$ spin model ($J$-$Q$ model) and studied using projector Monte Carlo simulations in the valence bond basis. A topological excitation with winding number $|W|>0$ contains domain walls, which are unstable due to the emergence of long valence bonds in the wave function, unlike in effective descriptions with the quantum dimer model. We find that the life time of the winding number in imaginary time diverges as a power of the system length $L$. The energy can be computed within this time (i.e., it converges toward a "quasi-eigenvalue" before the winding number decays) and agrees for large $L$ with the domain-wall energy computed in an open lattice with boundary modifications enforcing a domain wall. Constructing a simplified two-state model and using the imaginary-time behavior from the simulations as input, we find that the real-time decay rate out of the initial winding sector is exponentially small in $L$. Thus, the winding number rapidly becomes a well-defined conserved quantum number for large systems, supporting the conclusions reached by computing the energy quasi-eigenvalues. Including Heisenberg exchange interactions which brings the system to a quantum-critical point separating the valence-bond solid from an antiferromagnetic ground state (the putative "deconfined" quantum-critical point), we can also converge the domain wall energy here and find that it decays as a power-law of the system size. Thus, the winding number is an emergent quantum number also at the critical point, with all winding number sectors becoming degenerate in the thermodynamic limit. This supports the description of the critical point in terms of a U(1) gauge-field theory.
description: 10 pages, 9 figures
Dynamic cosmography of the local Universe: Laniakea and five more watershed superclusters
Creators: name: Dupuy, Alexandra
name: Courtois, Hélène M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: This article delivers the dynamical cosmography of the Local Universe within z=0.1 (1 giga light-years). We exploit the gravitational velocity field computed using the CosmicFlows-4 catalog of galaxy distances to delineate superclusters as watersheds, publishing for the first time their size, shape, main streams of matter and the location of their central attractor. Laniakea, our home supercluster's size is confirmed to be 2 $\times 10^6$ (Mpc $h^{-1}$)$^3$. Five more known superclusters are now dynamically defined in the same way: Apus, Hercules, Lepus, Perseus-Pisces and Shapley. Also, the central repellers of the Bootes and Sculptor voids are found and the Dipole and Cold Spot repellers now appear as a single gigantic entity. Interestingly the observed superclusters are an order of magnitude larger than the theoretical ones predicted by cosmological $Λ$CDM simulations.
description: 8 pages, 4 figures, 1 table, accepted in A&A (AA/2023/46802)
Parity-violating and anisotropic correlations in pseudoscalar inflation
Creators: name: Bartolo, Nicola
name: Matarrese, Sabino
name: Peloso, Marco
name: Shiraishi, Maresuke
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A pseudo-scalar inflaton field can have interesting phenomenological signatures associated with parity violation. The existing analyses of these signatures typically assume statistical isotropy. In the present work we instead investigate the possibility that a pseudo-scalar inflaton is coupled to a vector field carrying a small but non-negligible vacuum expectation value (vev) coherent over our Hubble patch. We show that, in such case, correlators involving the primordial curvature perturbations and gravitational waves violate both statistical isotropy and parity symmetry. We compute the Cosmic Microwave Background (CMB) temperature anisotropies (T) and polarization (E/B) generated by these primordial modes. The CMB two-point correlation functions present distinct signals of broken rotational and parity invariance. Specifically, we find non-vanishing TT, TE, EE and BB correlators between $\ell_1$ and $\ell_2 = \ell_1 \pm 1$ multipoles, and non-vanishing TB and EB correlators between $\ell_1$ and $\ell_2 = \ell_1 \pm 2$ multipoles. Such signatures are specific of the models under consideration and they cannot be generated if one of parity and isotropy is preserved. As a specific example we consider the simple case in which the vector field has just an "electric" background component decaying in the standard way as $a^{-2}$. In this case a strong scale-dependent quadrupolar modulation of the primordial power spectra is generated and we find that almost noiseless data of the large-scale temperature and E-mode polarization anisotropies (like, e.g., the ones provided by WMAP or $Planck$) should be able to constrain the quadrupolar amplitude coefficients $g_{2M}$ of the primordial scalar power spectrum (normalized at the pivot scale comparable to the present horizon size $k_0^{-1} = 14~{\rm Gpc}$) down to $g_{2M} = 30$ (68%CL).
description: 21 pages, 2 figures, 2 tables. Accepted for publication in JCAP
title:  Emozioni e differenza
Creators: name: Forcina  ,  Marisa
Publisher: name: Roma TrE-Press
Year: 2014

description: Il ricordo dei colloqui avuti con Francesca Brezzi diventa uno spunto di riflessione per meditare sull'importanza dell'emotività nella sfera pubblica dell'agire sociale.
description: B@belonline vol. 16/17 Pensare Altrimenti
Alfred Delps Vaterunser
Creators: name: Delp, Alfred
name: Knop, Julia
Publisher: name: Internationale katholische Zeitschrift Communio
Year: 2022

description: Internationale katholische Zeitschrift Communio, Bd. 45 Nr. 1 (2016): Internationale katholische Zeitschrift Communio, Band 45, Heft 1
Spin Glass Field Theory with Replica Fourier Transforms
Creators: name: Pimentel, I. R.
name: De Dominicis, C.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We develop a field theory for spin glasses using Replica Fourier Transforms (RFT). We present the formalism for the case of replica symmetry and the case of replica symmetry breaking on an ultrametric tree, with the number of replicas $n$ and the number of replica symmetry breaking steps $R$ generic integers. We show how the RFT applied to the two-replica fields allows to construct a new basis which block-diagonalizes the four-replica mass-matrix, into the replicon, anomalous and longitudinal modes. The eigenvalues are given in terms of the mass RFT and the propagators in the RFT space are obtained by inversion of the block-diagonal matrix. The formalism allows to express any $i$-replica vertex in the new RFT basis and hence enables to perform a standard perturbation expansion. We apply the formalism to calculate the contribution of the Gaussian fluctuations around the Parisi solution for the free-energy of an Ising spin glass.
description: 39 pages, 3 figures
Inferring Local Structure from Pairwise Correlations
Creators: name: Rahman, Mahajabin
name: Nemenman, Ilya
Publisher: name: arXiv
Year: 2023
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Machine Learning (cs.LG)
subject: Other Statistics (stat.OT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: To construct models of large, multivariate complex systems, such as those in biology, one needs to constrain which variables are allowed to interact. This can be viewed as detecting "local" structures among the variables. In the context of a simple toy model of 2D natural and synthetic images, we show that pairwise correlations between the variables -- even when severely undersampled -- provide enough information to recover local relations, including the dimensionality of the data, and to reconstruct arrangement of pixels in fully scrambled images. This proves to be successful even though higher order interaction structures are present in our data. We build intuition behind the success, which we hope might contribute to modeling complex, multivariate systems and to explaining the success of modern attention-based machine learning approaches.
description: 6 pages, 5 figures
1FGL J1417.7-4407: A likely gamma-ray bright binary with a massive neutron star and a giant secondary
Creators: name: Strader, Jay
name: Chomiuk, Laura
name: Cheung, C. C.
name: Sand, David J.
name: Donato, Davide
name: Corbet, Robin
name: Koeppe, Dana
name: Edwards, Philip G.
name: Stevens, Jamie
name: Petrov, Leonid
name: Salinas, Ricardo
name: Peacock, Mark
name: Finzell, Thomas
name: Reichart, Daniel
name: Haislip, Joshua
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present multiwavelength observations of the persistent Fermi-LAT unidentified gamma-ray source 1FGL J1417.7-4407, showing it is likely to be associated with a newly discovered X-ray binary containing a massive neutron star (nearly 2 M_sun) and a ~ 0.35 M_sun giant secondary with a 5.4 day period. SOAR optical spectroscopy at a range of orbital phases reveals variable double-peaked H-alpha emission, consistent with the presence of an accretion disk. The lack of radio emission and evidence for a disk suggests the gamma-ray emission is unlikely to originate in a pulsar magnetosphere, but could instead be associated with a pulsar wind, relativistic jet, or could be due to synchrotron self-Compton at the disk--magnetosphere boundary. Assuming a wind or jet, the high ratio of gamma-ray to X-ray luminosity (~ 20) suggests efficient production of gamma-rays, perhaps due to the giant companion. The system appears to be a low-mass X-ray binary that has not yet completed the pulsar recycling process. This system is a good candidate to monitor for a future transition between accretion-powered and rotational-powered states, but in the context of a giant secondary.
description: ApJL in press
Multi-source Education Knowledge Graph Construction and Fusion for College Curricula
Creators: name: Li, Zeju
name: Cheng, Linya
name: Zhang, Chunhong
name: Zhu, Xinning
name: Zhao, Hui
Publisher: name: arXiv
Year: 2023
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Computers and Society (cs.CY)
subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: The field of education has undergone a significant transformation due to the rapid advancements in Artificial Intelligence (AI). Among the various AI technologies, Knowledge Graphs (KGs) using Natural Language Processing (NLP) have emerged as powerful visualization tools for integrating multifaceted information. In the context of university education, the availability of numerous specialized courses and complicated learning resources often leads to inferior learning outcomes for students. In this paper, we propose an automated framework for knowledge extraction, visual KG construction, and graph fusion, tailored for the major of Electronic Information. Furthermore, we perform data analysis to investigate the correlation degree and relationship between courses, rank hot knowledge concepts, and explore the intersection of courses. Our objective is to enhance the learning efficiency of students and to explore new educational paradigms enabled by AI. The proposed framework is expected to enable students to better understand and appreciate the intricacies of their field of study by providing them with a comprehensive understanding of the relationships between the various concepts and courses.
description: accepted by ICALT2023
Fête patronale de la saint Marcel, annonce par le cantonnier municipal du début de la "distribution de la viande de saint Marcel" à l'hôtel de ville de de Barjols
Creators: name: Musée National Des Arts Et Traditions Populaires (Paris)
name: Centre D'ethnologie Française
Publisher: name: École des Hautes Études en Sciences Sociales; Institut  interdisciplinaire d'anthropologie du contemporain (Paris); Laboratoire d'anthropologie et d'histoire de l'institution de la culture (Paris)
Year: 2024

Abstract
title: Detecting Portable Electronic Devices Onboard Commercial Aircraft
Creators: name: Woods, Randy
Publisher: name: Old Dominion University
publisherIdentifier: https://ror.org/04zjtrb98
publisherIdentifierScheme: ROR
Year: 2008

description: The need to detect unauthorized usage of intentionally transmitting portable electronic devices (PEDs) onboard commercial aircraft is growing while still allowing passengers to use selected unintentionally transmitting devices, such as laptop computers and CD players, during non-critical stages of flight. This thesis presents the development and testing of an installed system for detecting PEDs over multiple frequency bands. Additionally, the advantages of a fixed versus mobile system are discussed.

Data is presented to cover the frequency range of 20 MHz to 6.5 GHz with special attention given to the cellular and PCS telephone bands, Bluetooth, and the family radio service (FRS) bands. These four bands were chosen due to their wide spread usage by the general flying public.

To determine the most effective installation, two physically different cable designs and three different leaky-coaxial cables from two different manufacturers were investigated using both a semi-anechoic and reverberation chamber at NASA Langley Research Center. The data obtained from reverberation and semi-anechoic chambers is then analyzed and correlated with data collected onboard a commercial aircraft to determine the dominant mode of coupling inside the passenger cabin of the aircraft. As a final check of the system feasibility, several PEDs' transmission signatures were recorded and compared with the expected levels to ensure system feasibility.
title:  La passione del pensare. Soggetti saperi istituzioni
Creators: name: Giardini ,  Federica
Publisher: name: Roma TrE-Press
Year: 2014

description: Nell'articolo si mettono in luce i limiti degli organi istituzionali di fronte a soggetti e forme di sapere che resistono alla logica identitaria.
description: B@belonline vol. 16/17 Pensare Altrimenti
Tracking the Stellar Longitudes of Starspots in Short-Period Kepler Binaries
Creators: name: Balaji, Bhaskaran
name: Croll, Bryce
name: Levine, Alan M.
name: Rappaport, Saul
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report on a new method for tracking the phases of the orbital modulations in very short-period, near-contact, and contact binary systems systems in order to follow starspots. We apply this technique to Kepler light curves for 414 binary systems that were identified as having anticorrelated O-C curves for the midtimes of the primary and secondary eclipses, or in the case of non-eclipsing systems, their light-curve minima. This phase tracking approach extracts more information about starspot and binary system behavior than may be easily obtained from the O-C curves. We confirm the hypothesis of Tran et al. (2013) that we can successfully follow the rotational motions of spots on the surfaces of the stars in these binaries. In ~34% of the systems, the spot rotation is retrograde as viewed in the frame rotating with the orbital motion, while ~13% show significant prograde spot rotation. The remaining systems show either little spot rotation or erratic behavior, or sometimes include intervals of both types of behavior. We discuss the possibility that the relative motions of spots are related to differential rotation of the stars. It is clear from this study that the motions of the starspots in at least 50% of these short-period binaries are not exactly synchronized with the orbits.
description: 16 pages, 14 figures, 2 tables; submitted to MNRAS
Das Fest der Menschwerdung
Creators: name: Wahle, Stephan
name: Bauer, Dorothee
Publisher: name: Internationale katholische Zeitschrift Communio
Year: 2022

description: Internationale katholische Zeitschrift Communio, Bd. 44 Nr. 6 (2015): Internationale katholische Zeitschrift Communio, Band 44, Heft 6
Dye-Sensitized Nonstoichiometric Strontium Titanate Core-Shell Photocathodes for Photoelectrosynthesis Applications
Creators: name: Alibabaei, L.
name: Moot, T.
name: Reilly, C.E.
name: Brennaman, M.K.
name: Lopez, R.
name: Dillon, R.J.
name: Nayak, A.
name: Brogan, S.
name: Meyer, T.J.
Publisher: name: American Chemical Society
Year: 2021

description: A core-shell approach that utilizes a high-surface-area conducting core and an outer semiconductor shell is exploited here to prepare p-type dye-sensitized solar energy cells that operate with a minimal applied bias. Photocathodes were prepared by coating thin films of nanocrystalline indium tin oxide with a 0.8 nm Al2O3 seeding layer, followed by the chemical growth of nonstoichiometric strontium titanate. Films were annealed and sensitized with either a porphyrin chromophore or a chromophore-catalyst molecular assembly consisting of the porphyrin covalently tethered to the ruthenium complex. The sensitized photoelectrodes produced cathodic photocurrents of up to -315 μA/cm2 under simulated sunlight (AM1.5G, 100 mW/cm2) in aqueous media, pH 5. The photocurrent was increased by the addition of regenerative hole donors to the system, consistent with slow interfacial recombination kinetics, an important property of p-type dye-sensitized electrodes.
Planck, LHC, and $α$-attractors
Creators: name: Kallosh, Renata
name: Linde, Andrei
Publisher: name: arXiv
Year: 2015
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We describe a simple class of cosmological models called $α$ attractors, which provide an excellent fit to the latest Planck data. These theories are most naturally formulated in the context of supergravity with logarithmic Kahler potentials. We develop generalized versions of these models which can describe not only inflation but also dark energy and supersymmetry breaking.
description: 8 pages, 4 figures, the version to appear in Phys. Rev. D
398. Ocular Manifestations in a Giant Cell Arteritis Cohort
Creators: name: Mansfield-Smith1, Sonja
Publisher: name: Zenodo
Year: 2022
Subjects: Vasculitis
ANCA
Abstracts
Giant Cell Arthritis
MPA
GPA
EGPA
Takayasu
IgA vasculitis

description: Background/Aims: The ophthalmic features of giant cell arteritis involve a spectrum of severity from transient symptoms to bilateral visual loss from anterior ischaemic optic neuropathy or less commonly central retinal or cilioretinal artery occlusion. Data of reported ocular involvement is varied with a range of 10-70%. The variation may be related to the speciality of the unit reporting the data. We run an interdisciplinary service in a tertiary academic unit and report a complete picture of the frequency and nature of ocular involvement in GCA. Methods: The records of 350 consecutive patients diagnosed objectively on the basis of biopsy or imaging were reviewed. In our centre, the hospital pathway mandates all individuals with suspected GCA with visual symptoms to have a formal ophthalmology assessment including visual acuity, pupil exam and full dilated fundus assessment. We recorded the common signs and symptoms using a structured form which included ophthalmologic symptoms and examination findings along with symptoms commonly associated with GCA - scalp tenderness, headache, jaw claudication, shoulder girdle stiffness, anorexia, night sweats, weight loss, and fever. Results: From January 2012 to September 2021, 350 individuals were diagnosed with GCA by biopsy, ultrasonography or positron emission tomography. The mean age was 74 ± 7.7 years. 235 (67%) of patients were females. 101 (29%) presenting with GCA had visual symptoms and or signs. 42 of them had mono-ocular and 5 had binocular loss of vision. A summary of the key visual symptoms and signs are shown in table 1. 6 individuals with visual symptoms did not have any symptoms commonly associated with GCA. Conclusions: We report the frequency of visual involvement in one of the largest cohorts of individuals with GCA. 29% have ocular symptoms. Partial or total field loss occurred in 13% of cases. 2% of patients may be presenting with visual symptoms as the only sign of GCA. Rarely, permanent visual loss may occur without any other manifestation of GCA.
 Disclosures: None
Supersymmetric transparent optical intersections
Creators: name: Longhi, Stefano
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Supersymmetric (SUSY) optical structures provide a versatile platform to manipulate the scattering and localization properties of light, with potential applications to mode conversion, spatial multiplexing and invisible devices. Here we show that SUSY can be exploited to realize broadband transparent intersections between guiding structures in optical networks for both continuous and discretized light. These include transparent crossing of high-contrast-index waveguides and directional couplers, as well as crossing of guiding channels in coupled resonator lattices.
description: 5 pages, 5 figures, revised version to appear in Optics Letters
Percolation Model of Insider Threats to Assess the Optimum Number of Rules
Creators: name: Kepner, Jeremy
name: Gadepally, Vijay
name: Michaleas, Pete
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computers and Society (cs.CY)
subject: Cryptography and Security (cs.CR)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Rules, regulations, and policies are the basis of civilized society and are used to coordinate the activities of individuals who have a variety of goals and purposes. History has taught that over-regulation (too many rules) makes it difficult to compete and under-regulation (too few rules) can lead to crisis. This implies an optimal number of rules that avoids these two extremes. Rules create boundaries that define the latitude an individual has to perform their activities. This paper creates a Toy Model of a work environment and examines it with respect to the latitude provided to a normal individual and the latitude provided to an insider threat. Simulations with the Toy Model illustrate four regimes with respect to an insider threat: under-regulated, possibly optimal, tipping-point, and over-regulated. These regimes depend up the number of rules (N) and the minimum latitude (Lmin) required by a normal individual to carry out their activities. The Toy Model is then mapped onto the standard 1D Percolation Model from theoretical physics and the same behavior is observed. This allows the Toy Model to be generalized to a wide array of more complex models that have been well studied by the theoretical physics community and also show the same behavior. Finally, by estimating N and Lmin it should be possible to determine the regime of any particular environment.
description: 6 pages, 5 figures, submitted to IEEE HST
An extremely metal poor star complex in the reionization era: Approaching Population III stars with JWST
Creators: name: Vanzella, E.
name: Loiacono, F.
name: Bergamini, P.
name: Mestric, U.
name: Castellano, M.
name: Rosati, P.
name: Meneghetti, M.
name: Grillo, C.
name: Calura, F.
name: Mignoli, M.
name: Bradac, M.
name: Adamo, A.
name: Rihtarsic, G.
name: Dickinson, M.
name: Gronke, M.
name: Zanella, A.
name: Annibali, F.
name: Willott, C.
name: Messa, M.
name: Sani, E.
name: Acebron, A.
name: Bolamperti, A.
name: Comastri, A.
name: Gilli, R.
name: Caputi, K. I.
name: Ricotti, M.
name: Gruppioni, C.
name: Ravindranath, S.
name: Mercurio, A.
name: Strait, V.
name: Martis, N.
name: Pascale, R.
name: Caminha, G. B.
name: Annunziatella, M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present JWST/NIRSpec integral field spectroscopy (IFS) of a lensed Population III candidate stellar complex (dubbed Lensed And Pristine 1, LAP1), with a lensing-corrected stellar mass ~<10^4 Msun, absolute luminosity M_UV > -11.2 (m_UV > 35.6), confirmed at redshift 6.639 +/- 0.004. The system is strongly amplified (μ>~ 100) by straddling a critical line of the Hubble Frontier Field galaxy cluster MACS J0416. Despite the stellar continuum is currently not detected in the Hubble and JWST/NIRCam and NIRISS imaging, arclet-like shapes of Lyman and Balmer lines, Lya, Hg, Hb and Ha are detected with NIRSpec IFS with signal-to-noise ratios SNR=5-13 and large equivalent widths (>300-2000A), along with a remarkably weak [OIII]4959-5007 at SNR ~ 4. LAP1 shows a large ionizing photon production efficiency, log(ξ_{ion}[erg~Hz^{-1}])>26. From the metallicity indexes R23 = ([OIII]4959-5007 + [OII]3727) / Hb ~< 0.74 and R3 = ([OIII]5007 / Hb) = 0.55 +/- 0.14, we derive an oxygen abundance 12+log(O/H) ~< 6.3. Intriguingly, the Ha emission is also measured in mirrored sub-components where no [OIII] is detected, providing even more stringent upper limits on the metallicity if in-situ star formation is ongoing in this region (12+log(O/H) < 6, or Z < 0.002 Zsun). The formal stellar mass limit of the sub-components would correspond to ~10^{3} Msun or M_UV fainter than -10. Alternatively, such a metal-free pure line emitting region could be the first case of a fluorescing HI gas region, induced by transverse escaping ionizing radiation from a nearby star-complex. The presence of large equivalent-width hydrogen lines and the deficiency of metal lines in such a small region, make LAP1 the most metal poor star-forming region currently known in the reionization era and a promising site that may host isolated, pristine stars.
description: 15 pages, 10 figures, 1 table. Submitted to A&A. Comments welcome
Spin-polarized lasing in a highly photoexcited semiconductor microcavity
Creators: name: Hsu, Feng-kuo
name: Xie, Wei
name: Lee, Yi-Shan
name: Lin, Sheng-Di
name: Lai, Chih-Wei
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We demonstrate room-temperature spin-polarized ultrafast ($\sim$10 ps) lasing in a highly optically excited GaAs microcavity. This microcavity is embedded with InGaAs multiple quantum wells in which the spin relaxation time is less than 10 ps. The laser radiation remains highly circularly polarized even when excited by nonresonant elliptically polarized light. The lasing energy is not locked to the bare cavity resonance, and shifts $\sim$10 meV as a function of the photoexcited density. Such spin-polarized lasing is attributed to a spin-dependent stimulated process of correlated electron-hole pairs. These pairs are formed near the Fermi edge in a high-density electron-hole plasma coupled to the cavity light field.
description: 15 pages, 10 figures
Impedance spectroscopy study of SrTiO3 pulse laser deposited photoelectrodes
Creators: name: Lopez, R.
name: Alibabaei, L.
name: Brogan, S.
name: Call, R.W.
Publisher: name: Elsevier B.V.
Year: 2018

description: Strontium titanate (STO) is an oxide that has found application in several technological areas and is a candidate electrode for photoelectrochemical cells (PECs). In this study, STO thin films were prepared via pulsed laser deposition to function as PEC electrodes. Effects of post-deposition annealing in a reducing environment on the photocatalytic activity of these electrodes are characterized by measurements of optical and electrochemical properties of the films. These observations are used to obtain insight into how the crystal and electronic properties of these electrodes are affected by the annealing process. Low annealing temperatures produce non-crystalline STO films that exhibit low photocatalytic activity. Annealing at 500 °C and higher allowed the formation of crystalline STO, which showed substantially higher ultraviolet-driven photocurrent densities. Electrochemical impedance spectroscopy reveals large decreases in charge transfer resistance that is associated with improved performance of these films. Oxygen evolution at these electrodes was confirmed with a rotating ring-disk electrode setup. Porous versions of the STO films were investigated to evaluate the effect larger surface area can have in enhancing the water oxidation performance.
Cusp singularities in the distribution of orientations of asymmetrically-pivoted hard discs on a lattice
Creators: name: Saryal, Sushant
name: Dhar, Deepak
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study a system of equal-sized circular discs each with an asymmetrically placed pivot at a fixed distance from the center. The pivots are fixed at the vertices of a regular triangular lattice. The discs can rotate freely about the pivots, with the constraint that no discs can overlap with each other. Our Monte Carlo simulations show that the one-point probability distribution of orientations shows multiple cusp-like singularities. We determine the exact positions and qualitative behavior of these singularities. In addition to these geometrical singularities, we also find that the system shows order-disorder transitions, with a disordered phase at large lattice spacings, a phase with spontaneously broken orientational lattice symmetry at small lattice spacings, and an intervening Berezinskii-Kosterlitz-Thouless phase in between.
description: 8 pages, 8 figures
Line Roughness in Lamellae-Forming Block Copolymer Films
Creators: name: Wan, L.
name: Ruiz, R.
name: Albrecht, T.R.
name: Lopez, R.
Publisher: name: American Chemical Society
Year: 2017

description: We study the line roughness in poly(styrene-b-methyl methacrylate) symmetric block copolymer thin films and propose a phenomenological model to fit and describe the observed line edge, width, and placement roughness. Owing to the layering structure of symmetric block copolymers, we build from the model used to describe the thermal fluctuations in bilayer membranes and add a term for the bulk composition fluctuations in a phase segregated system. We use the peristaltic and undulatory modes of bilayer membranes to describe the width and placement roughness, respectively. We also include the correlations between adjacent domains to capture the cross-talk between alternating domains. We find that the model reproduces most of the main features observed in the power spectral density of our block copolymer films, providing a baseline to understand the physical properties that influence line roughness in a system relevant to nanolithography.
The Elusive Gluon
Creators: name: Chala, Mikael
name: Juknevich, Jose
name: Perez, Gilad
name: Santiago, Jose
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We study the phenomenology of vector resonances in the context of natural composite Higgs models. A mild hierarchy between the fermionic partners and the vector resonances can be expected in these models based on the following arguments. Both direct and indirect (electroweak and flavor precision) constraints on fermionic partners are milder than the ones on spin one resonances. Also the naturalness pressure coming from the top partners is stronger than that induced by the gauge partners. This observation implies that the search strategy for vector resonances at the LHC needs to be modified. In particular, we point out the importance of heavy gluon decays (or other vector resonances) to top partner pairs that were overlooked in previous experimental searches at the LHC. These searches focused on simplified benchmark models in which the only new particle beyond the Standard Model was the heavy gluon. It turns out that, when kinematically allowed, such heavy-heavy decays make the heavy gluon elusive, and the bounds on its mass can be up to 2 TeV milder than in the simpler models considered so far for the LHC14. We discuss the origin of this difference and prospects for dedicated searches.
description: 32 pages, 12 figures. v2: References added, matches published version
Material informatics driven design and experimental validation of lead titanate as an aqueous solar photocathode
Creators: name: Moot, T.
name: Zemaitis, M.
name: Isayev, O.
name: Cahoon, J.F.
name: Lopez, R.
name: Tropsha, A.
name: Call, R.W.
name: McCullough, S.M.
Publisher: name: Elsevier Ltd
Year: 2016

description: Materials informatics is a rapidly emerging data- and knowledge-driven approach for the identification of novel materials for a range of applications, including solar energy conversion. Despite significant experimental effort, the development of highly efficient, stable, and cost-effective photovoltaic materials remains a challenging scientific problem. The quest for precisely defined semiconductor properties revolves around an immensely broad landscape of structural parameters. Here, we have resolved this challenge by applying material informatics to design a novel photocathode material for dye-sensitized solar cells (DSSCs). By conducting a virtual screening of 50,000 known inorganic compounds, we have identified lead titanate (PbTiO3), a perovskite, as the most promising photocathode material. Notably, lead titanate is significantly different from the traditional base elements or crystal structures used for photocathodes. The fabricated PbTiO3 DSSC devices exhibited the best performance in aqueous solution, showing remarkably high fill factors compared to typical photocathode systems. The results highlight the pivotal role materials informatics can play in streamlining the experimental development of materials with the desired properties.