cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Distinguishing the albedo of exoplanets from stellar activity
Creators: name: Serrano, L. M.
name: Barros, S. C. C.
name: Oshagh, M.
name: Santos, N. C.
name: Faria, J. P.
name: Demangeon, O.
name: Sousa, S. G.
name: Lendl, M.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Light curves show the flux variation from the target star and its orbiting planets as a function of time. In addition to the transit features created by the planets, the flux also includes the reflected light component of each planet, which depends on the planetary albedo. This signal is typically referred to as phase curve and could be easily identified if there were no additional noise. As well as instrumental noise, stellar activity, such as spots, can create a modulation in the data, which may be very difficult to distinguish from the planetary signal. We analyze the limitations imposed by the stellar activity on the detection of the planetary albedo, considering the limitations imposed by the predicted level of instrumental noise and the short duration of the observations planned in the context of the CHEOPS mission. As initial condition, we have assumed that each star is characterized by just one orbiting planet. We built mock light curves that included a realistic stellar activity pattern, the reflected light component of the planet and an instrumental noise level, which we have chosen to be at the same level as predicted for CHEOPS. We then fit these light curves to try to recover the reflected light component, assuming the activity patterns can be modeled with a Gaussian process.We estimate that at least one full stellar rotation is necessary to obtain a reliable detection of the planetary albedo. This result is independent of the level of noise, but it depends on the limitation of the Gaussian process to describe the stellar activity when the light curve time-span is shorter than the stellar rotation. Finally, in presence of typical CHEOPS gaps in the simulations, we confirm that it is still possible to obtain a reliable albedo.
description: Accepted for publication in A&A, 14 pages, 12 figures
เทคนิคการปรับปรุงไดเร็กติวิตี้ของสายส่งเชื่อมต่อคู่ขนานไมโครสตริป (Directivity Enhancement of Microstrip Parallel Coupled Lines Techniques)
Creators: name: สมชาติ โสนะแสง
Publisher: name: Nakhon Phanom University
Year: 2021
Subjects: directivity
parallel coupled lines
microstrip

description: Journal of Engineering Technology Access, 1, 1, 12-31
The A_f condition and relative conormal spaces for functions with non-vanishing derivative
Creators: name: Gaffney, Terence
name: Rangachev, Antoni
Publisher: name: arXiv
Year: 2018
Subjects: subject: Algebraic Geometry (math.AG)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics

description: We introduce a join construction as a way of completing the description of the relative conormal space of an analytic function on a complex analytic space that has a non-vanishing derivative at the origin. Then we show how to obtain a numerical criterion for Thom's A_f condition.
description: 11 pages; the exposition of the paper is improved based on the referees' comments
Electron-induced extended-fine-structure measurements of thin-film growth and reaction
Creators: name: Idzerda, Y. U.
name: Williams, Ellen D.
name: Einstein, Theodore L.
name: Park, R. L.
Publisher: name: American Physical Society
Year: 1987

description: The application of two electron-beam-induced extended-fine-structure (EFS) techniques (surface extended energy-loss fine structure (SEELFS) and extended appearance-potential fine structure (EAPFS)) to the study of thin films has been demonstrated by measurements on three well-characterized compositional phases of titanium deposited on Si(111).
Quantum stability of self-organized atomic insulator-like states in optical resonators
Creators: name: Larson, Jonas
name: Fernandez-Vidal, Sonia
name: Morigi, Giovanna
name: Lewenstein, Maciej
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate a paradigm example of cavity quantum electrodynamics with many body systems: an ultracold atomic gas inside a pumped optical resonator. In particular, we study the stability of atomic insulator-like states, confined by the mechanical potential emerging from the cavity field spatial mode structure. As in open space, when the optical potential is sufficiently deep, the atomic gas is in the Mott-like state. Inside the cavity, however, the potential depends on the atomic distribution, which determines the refractive index of the medium, thus altering the intracavity field amplitude. We derive the effective Bose-Hubbard model describing the physics of the system in one dimension and study the crossover between the superfluid -- Mott insulator quantum states. We determine the regions of parameters where the atomic insulator states are stable, and predict the existence of overlapping stability regions corresponding to competing insulator-like states. Bistable behavior, controlled by the pump intensity, is encountered in the vicinity of the shifted cavity resonance.
description: 13 pages, 6 figures. Replaced with revised version. Accepted for publication in New J. Phys., special issue "Quantum correlations in tailord matter"
Additional file 1: of Jugular vs femoral vein for central venous catheterization in pediatric cardiac surgery (PRECiSE): study protocol for a randomized controlled trial
Creators: name: Silvetti, Simona
name: Aloisio, Tommaso
name: Cazzaniga, Anna
name: Ranucci, Marco
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Marine Biology
subject: Science Policy

description: Standard Protocol Items: Recommendation for Interventional Trials (SPIRIT) 2013 Checklist. (PDF 69 kb)
title: The JCMT Nearby Galaxies Legacy Survey – V. The CO(J= 3–2) distribution and molecular outflow in NGC 4631
Creators: name: Irwin, JA
name: Wilson, CD
name: Wiegert, T
name: Bendo, GJ
name: Warren, BE
name: Wang, QD
name: Israel, FP
name: Serjeant, S
name: Knapen, JH
name: Brinks, E
name: Tilanus, RPJ
name: Van Der Werf, P
name: Muhle, S
Publisher: name: University of Massachusetts Amherst
Year: 2011
Subjects: subject: * ISM: bubbles; * ISM: molecules; * ISM: structure; * galaxies: haloes; * galaxies: individual: NGC 4631; * galaxies: ISM
subject: Astrophysics and Astronomy

description: This is the pre-published version harvested from ArXiv. The published version is located at http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2966.2010.17510.x/abstract
description: We have made the first map of CO(J= 3–2) emission covering the disc of the edge-on galaxy, NGC 4631, which is known for its spectacular gaseous halo. The strongest emission, which we model with a Gaussian ring, occurs within a radius of 5 kpc. Weaker disc emission is detected out to radii of 12 kpc, the most extensive molecular component yet seen in this galaxy. From comparisons with infrared data, we find that CO(J= 3–2) emission more closely follows the hot dust component, rather than the cold dust, consistent with it being a good tracer of star formation. The first maps of R3−2/1−0, H2 mass surface density and star formation efficiency (SFE) have been made for the inner 2.4 kpc radius region. Only 20 per cent of the star formation occurs in this region and excitation conditions are typical of galaxy discs, rather than of central starbursts. The SFE suggests long gas consumption time-scales (>109 yr). The velocity field is dominated by a steeply rising rotation curve in the region of the central molecular ring followed by a flatter curve in the disc. A very steep gradient in the rotation curve is observed at the nucleus, providing the first evidence for a central concentration of mass: Mdyn= 5 × 107 M⊙ within a radius of 282 pc. The velocity field shows anomalous features indicating the presence of molecular outflows; one of them is associated with a previously observed CO(J= 1–0) expanding shell. Consistent with these outflows is the presence of a thick (z up to 1.4 kpc) CO(J= 3–2) disc. We suggest that the interaction between NGC 4631 and its companion(s) has agitated the disc and also initiated star formation which was likely higher in the past than it is now. These may be necessary conditions for seeing prominent haloes.
Planckian Birth of the Quantum de Sitter Universe
Creators: name: Ambjorn, J.
name: Gorlich, A.
name: Jurkiewicz, J.
name: Loll, R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We show that the quantum universe emerging from a nonperturbative, Lorentzian sum-over-geometries can be described with high accuracy by a four-dimensional de Sitter spacetime. By a scaling analysis involving Newton's constant, we establish that the linear size of the quantum universes under study is in between 17 and 28 Planck lengths. Somewhat surprisingly, the measured quantum fluctuations around the de Sitter universe in this regime are to good approximation still describable semiclassically. The numerical evidence presented comes from a regularization of quantum gravity in terms of causal dynamical triangulations.
description: Article unchanged. Line added in acknowledgment
Reconstructing the Pleiades with Gaia EDR3
Creators: name: Heyl, Jeremy
name: Caiazzo, Ilaria
name: Richer, Harvey
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We search through an eight-million cubic-parsec volume surrounding the Pleiades star cluster and the Sun to identify both the current and past members of the Pleiades cluster within the Gaia EDR3 dataset. We find nearly 1,300 current cluster members and 289 former cluster candidates. Many of these candidates lie well in front or behind the cluster from our point of view, so formerly they were considered cluster members, but their parallaxes put them more than 10 pc from the centre of the cluster today. Over the past 100 Myr we estimate that the cluster has lost twenty percent of its mass including two massive white dwarf stars and the $α^2$ Canum Venaticorum-type variable star, 41 Tau. All three white dwarfs associated with the cluster are massive ($1.01-1.06~\textrm{M}_\odot$) and have progenitors with main-sequence masses of about six solar masses. Although we did not associate any giant stars with the cluster, the cooling time of the oldest white dwarf of 60~Myr gives a firm lower limit on the age of the cluster.
description: 13 pages, 14 figures
Theoretical progress on cusp effect and Kl4 decays
Creators: name: Gasser, J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The cusp effect in K \to 3πand data on K_e4 decays allow one to extract experimental information on the elastic ππscattering amplitude near threshold, and to confront the outcome of the analyses with predictions made in the framework of QCD. In my talk I pointed out that these predictions concern an isospin symmetric world, while experiments are carried out in the real world, where isospin breaking effects -- generated by electromagnetic interactions and by the mass difference of the up and down quarks -- are always present. I discussed the corrections required to account for these, so that a meaningful comparison with the predictions becomes possible. In particular, I pointed out that there is a spectacular isospin breaking effect in K_e4 decays, overlooked so far. Once it is taken into account, the previous discrepancy between NA48/2 data on K_e4 decays and the prediction of ππscattering lengths disappears.
description: Plenary talk given at the International Conference KAON'07, Laboratori Nazionali di Frascati, Italy, May 21-25, 2007. To appear in the proceedings. 10 pages, 3 figures
Precise measurements of torque in von Karman swirling flow driven by a bladed disk
Creators: name: Mukherjee, Aryesh
name: Lukaschuk, Sergei
name: Burnishev, Yuri
name: Falkovich, Gregory
name: Steinberg, Victor
Publisher: name: arXiv
Year: 2018
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Scrupulous measurements and detailed data analysis of the torque in a swirling turbulent flow driven by counter-rotating bladed disks reveals an apparent breaking of the law of similarity. Potentially, such breakdown could arise from several possible factors, including dependence on dimensionless numbers other that $Re$ or velocity coupling to other fields such as temperature. However, careful redesign and calibration of the experiment showed that this unexpected result was due to background errorscaused by minute misalignments which lead to a noisy and irreproducible torque signal at low rotation speeds and prevented correct background subtraction normally ascribed to frictional losses. An important lesson to be learnt is that multiple minute misalignments can nonlinearly couple to the torque signal and provide a dc offset that cannot be removed by averaging. That offset can cause the observed divergence of the friction coefficient C_f from its constant value observed in the turbulent regime. To minimize the friction and misalignments, we significantly modified the experimental setup and carried out the experiment with one bladed disk where the disk, torque meter and motor shaft axes can be aligned with significantly smaller error, close to the torque meter resolution. As a result we made precise measurements with high resolution and sensitivity of the small torques produced for low rotation speeds for several water-glycerin solutions of different viscosities and confirmed the similarity law in a wide range of Re in particular in low viscosity fluids.
description: 26 pages, 17 figures and Supplemental Material
Entangling identical bosons in optical tweezers via exchange interaction
Creators: name: Babcock, Nathan S.
name: Stock, Rene
name: Raizen, Mark G.
name: Sanders, Barry C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We first devise a scheme to perform a universal entangling gate via controlled collisions between pairs of atomic qubits trapped with optical tweezers. Second, we present a modification to this scheme to allow the preparation of atomic Bell pairs via selective excitation, suitable for quantum information processing applications that do not require universality. Both these schemes are enabled by the inherent symmetries of identical composite particles, as originally proposed by Hayes et al. Our scheme provides a technique for producing weighted graph states, entangled resources for quantum communication, and a promising approach to performing a "loophole free" Bell test in a single laboratory.
description: 9 pages, 3 figures
BLACK FEMINISM: BLACK WOMEN PAVING THEIR OWN WAY TO EQUALITY
Creators: name: Mulligan, Charly
Publisher: name: Maryland Shared Open Access Repository
Year: 2017

description: This portfolio is a collection of three essays written throughout graduate coursework within a concentration entitled "Identity, Oppressive Systems, and the Fight for Social Change." The essays examine black feminists' voices within social equality discourses from the 1970s through the 1990s, and set out to show how these voices stretched the boundaries of racial and gender equality discourses. By incorporating subjective methodologies and epistemologies, black feminists asserted their emotive experiences as proof of the uniqueness of intersectional oppression, forcing black men and white women and to confront black women's reality living under a racist patriarchal society. Furthermore, the papers show a comprehensive history of black feminist theory, crafted by black women such as Audre Lorde, bell hooks, Patricia Hill Collins, Joan Morgan. The portfolio, composed in chronological order, is meant to show how black feminist theory changed over time and how black feminist voices expanded social equality discourses to become more inclusive.
"Twist-Controlled" force amplification \& Spinning tension transition in yarn
Creators: name: Seguin, Antoine
name: Crassous, Jérôme
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Combining experiments and numerical simulations with a mechanical/statistical model of twisted yarns, we discuss the spinning transition between a cohesion-less assembly of fibers into a yarn. We show that this transition is continuous but very sharp due to a giant amplification of frictional forces which scales as $\exp θ^2$, where $θ$ is the twist angle. We demonstrate that this transition is controlled solely by a non-dimensional number ${\mathcal{H}}$ involving twist, friction coefficient, and geometric lengths. A critical value of this number ${\mathcal{H}} \simeq 30$ can be linked to a locking of the fibers together as the tensile strength is reached. This critical value imposes that yarns must be very slender structures with a given pitch. It also induces the existence of an optimal yarn radius. Predictions of our theory are successfully compared to yarns made from natural cotton fibers.
Theoretical progress on pi pi scattering lengths and phases
Creators: name: Colangelo, Gilberto
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: pi pi scattering at low energy is sensitive to the structure of the QCD vacuum. I review the calculations of the pi pi scattering lengths and phases, and group them in three cathegories: 1. those based on very general theoretical constraints (like dispersion relations and crossing symmetry) and phenomenology, 2. those which in addition make explicit use of chiral symmetry, 3. the first-principle ones, done with lattice QCD. I then compare these to the experimental results. Thanks to recent progress in all these and in the experimental determination of the scattering lengths we are improving substantially our knowledge of the QCD vacuum.
description: 11 pages, talk given at the KAON International Conference, May 21-25 2007 Laboratori Nazionali di Frascati dell'INFN, Rome, Italy
Angular momentum branching ratios for electron-induced ionization: Atomic and model calculations
Creators: name: Mehl, M. J.
name: Einstein, Theodore L.
Publisher: name: American Physical Society
Year: 1987

description: We present calculations of the matrix elements for electron-induced ionization of core electrons of atoms. We use both self-consistent atomic potentials for accuracy and model potentials to gain physical insight. We pay particular attention to the angular momentum distribution of the two final-state electrons, especially when one of them lies near what would be the Fermi energy in a solid (i.e., as in an absorption fine-structure experiment). For nodeless core wave functions, in the dominant channel both final-state electrons have angular momentum one greater than that of the initial core state. For sufficiently deeply bound states, this first approximate selection rule holds until the incident electron energy exceeds the ionization threshold by at least 500 eV, i.e., over the experimentally relevant range. It is also possible to determine the angular momentum distribution of the final-state electron. The EXAFS-like electron tends to have angular momentum one greater than that of the initial core state, even in some cases where the first approximate selection rule does not hold. (EXAFS is extended x-ray-absorption fine structure.) The strongest trend is that the dipole component in a partial-wave expansion of the Coulomb interaction dominates the matrix element. In these studies, careful treatment of not just the core state but also the unbound states is crucial; we show that the conventional orthogonalized plane-wave approximation is inadequate, giving incorrect ordering of the channels. For model potentials with an adjustable screening length, low-lying bound resonances are found to play an important role.
Additional file 1: of Recruitment maneuver does not provide any mortality benefit over lung protective strategy ventilation in adult patients with acute respiratory distress syndrome: a meta-analysis and systematic review of the randomized controlled trials
Creators: name: Sulagna Bhattacharjee
name: Soni, Kapil
name: Souvik Maitra
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: Appendix. (DOCX 63Â kb)
Phase diagram and critical properties of a two-dimensional lattice-gas model of oxygen ordering in YBa2Cu3Oz
Creators: name: Bartelt, N. C.
name: Einstein, Theodore L.
name: Wille, L. T.
Publisher: name: American Physical Society
Year: 1989

description: Using transfer-matrix finite-size scaling, we investigate a square lattice-gas model for the oxygen ordering in YBa2Cu3Oz, which reproduces the experimentally observed orthorhombic and double-cell ordered phases. Contrary to the results of cluster-variational methods of calculation, the phase boundary between the (disordered) tetragonal and double-cell phases is continuous, as is the boundary between the orthorhombic and double-cell phases. Critical properties of the model can be understood by drawing an analogy with the Ashkin-Teller model; numerical results are consistent with this picture. At low temperature and low oxygen concentration, there is complicated behavior, possibly indicative of a second orthorhombic phase.
BEYOND THE HOMEFRONT IN THE SHENANDOAH VALLEY: SOUTHERN WHITE WOMEN, THE CIVIL WAR, AND EXPANDING GENDER ROLES
Creators: name: Murphy, Daphne Karina
Publisher: name: Maryland Shared Open Access Repository
Year: 2016

description: In my paper I am exploring how the experiences of women during the American Civil War influenced social change. I explore how the war aided in changing the roles and perceptions of women after the war as compared to before. Through researching both primary sources and secondary sources I hope to prove that the experiences of women on the home-front during the war influenced how their lives changed and how and why those changes continued after the war. I used secondary sources to explore the differences in social roles and expectations of women before and after the war. I used primary sources to provide examples of experiences of women as written in their diaries, or as reported by newspapers. I used this material as evidence for how the experience of women during the Civil War effected the lives of women during and after the war, and accelerated the advancement of women in society.
Unique continuation for many-body Schrödinger operators and the Hohenberg-Kohn theorem
Creators: name: Garrigue, Louis
Publisher: name: arXiv
Year: 2018
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We prove the strong unique continuation property for many-body Schrödinger operators with an external potential and an interaction potential both in $L^p_{\rm loc}(\mathbb{R}^d)$, where $p > \max(2d/3,2)$, independently of the number of particles. With the same assumptions, we obtain the Hohenberg-Kohn theorem, which is one of the most fundamental results in Density Functional Theory.
description: This is a corrected version of the published article
Effect of antibiotic drug use on outcome and therapy-related toxicity in patients with glioblastoma—A retrospective cohort study
Creators: name: Götz, Linda
name: Ansafi, Tananeh
name: Gerken, Michael
name: Klinkhammer-Schalke, Monika
name: Fischl, Anna
name: Riemenschneider, Markus J.
name: Proescholdt, Martin A.
name: Bumes, Elisabeth
name: Kölbl, Oliver
name: Schmidt, Nils Ole
name: Linker, Ralf A.
name: Hau, Peter
name: Haedenkamp, Tareq M.
Publisher: name: Universität Regensburg
Year: 2024
Subjects: subject: antibiotics, glioblastoma, intestinal microbiome, survival, therapy-related toxicity
subject: 610 Medizin

description: Background. Glioblastoma (GB) is the most frequent malignant brain tumor and has a dismal prognosis. In other
cancers, antibiotic use has been associated with severity of chemotherapy-induced toxicity and outcome. We investigated
if these mechanisms are also involved in GB.
Methods. We selected a cohort of 78 GB patients who received combined radiochemotherapy. We investigated
if exposure to prediagnostic antibiotic use is associated with clinical side effects and laboratory changes during
adjuvant therapy as well as overall survival (OS) and progression-free survival (PFS) using chi-square test, binary
logistic regression, Kaplan–Meyer analysis, and multivariable Cox regression.
Results. Seventeen patients (21.8%) received at least one course of prediagnostic antibiotics and 61 (78.2%) received
no antibiotics. We found a higher incidence of loss of appetite (23.5% vs. 4.9%; P = .018) and myelosuppression
(41.2% vs. 18.0%; P = .045) in the antibiotic group. Multivariable logistic regression analysis revealed antibiotics
to be a predictor for nausea (OR = 6.94, 95% CI: 1.09–44.30; P = .041) and myelosuppression (OR = 9.75, 95% CI:
1.55–61.18; P = .015). Furthermore, lymphocytopenia was more frequent in the antibiotic group (90.0% vs. 56.1%,
P = .033). There were no significant differences in OS (P = .404) and PFS (P = .844). Multivariable Cox regression
showed a trend toward shorter survival time (P = .089) in the antibiotic group.
Conclusions. Our study suggests that antibiotic use affects symptoms and lab values in GB patients. Larger
prospective studies are required to investigate if prediagnostic antibiotic use could be a prognostic factor in GB
patients.
THE CATACOMBS AND THE SYNCRETISM WITHIN
Creators: name: Muscar, Melanie L.
Publisher: name: Maryland Shared Open Access Repository
Year: 2017

description: This capstone examines the phenomenon of employing religious syncretism in the art of the Roman catacombs as a means to promote the Christian faith during the first through mid-fourth centuries CE. Christianity, like many other religions, appropriated from the common stock of significant Greco-Roman symbols used in many regions throughout the Roman Empire. In its initial onset, Christian appropriation of such symbols and imagery was a means to move Romans away from worshipping other deities and toward Christianity. By changing the narratives of well-known Roman stories, teachings and interpretations were delivered in such a way that Christianity was appealing to the masses and so more easily moved throughout the Roman Empire garnering support. I argue that archaeological research of the catacombs was skewed with a Christian bias that created a problematic and contentious resource for scholarship. Syncretism was refuted as a plausible explanation because of the dogma of the Church and as such, the influence of Roman-derived imagery was ignored, deemed insignificant, or altogether denounced by Christian scholars, especially before the mid-twentieth century. This capstone argues that syncretism, both visual and religious, served as a viable tool not only to assist in the recruitment of Christian followers, but also for early believers to evade persecution from the non-Christian Roman society.
Learning Implicit Brain MRI Manifolds with Deep Learning
Creators: name: Bermudez, Camilo
name: Plassard, Andrew J.
name: Davis, Larry T.
name: Newton, Allen T.
name: Resnick, Susan M
name: Landman, Bennett A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: An important task in image processing and neuroimaging is to extract quantitative information from the acquired images in order to make observations about the presence of disease or markers of development in populations. Having a lowdimensional manifold of an image allows for easier statistical comparisons between groups and the synthesis of group representatives. Previous studies have sought to identify the best mapping of brain MRI to a low-dimensional manifold, but have been limited by assumptions of explicit similarity measures. In this work, we use deep learning techniques to investigate implicit manifolds of normal brains and generate new, high-quality images. We explore implicit manifolds by addressing the problems of image synthesis and image denoising as important tools in manifold learning. First, we propose the unsupervised synthesis of T1-weighted brain MRI using a Generative Adversarial Network (GAN) by learning from 528 examples of 2D axial slices of brain MRI. Synthesized images were first shown to be unique by performing a crosscorrelation with the training set. Real and synthesized images were then assessed in a blinded manner by two imaging experts providing an image quality score of 1-5. The quality score of the synthetic image showed substantial overlap with that of the real images. Moreover, we use an autoencoder with skip connections for image denoising, showing that the proposed method results in higher PSNR than FSL SUSAN after denoising. This work shows the power of artificial networks to synthesize realistic imaging data, which can be used to improve image processing techniques and provide a quantitative framework to structural changes in the brain.
description: SPIE Medical Imaging 2018
Manifest colour-kinematics duality and double-copy in the string-based formalism
Creators: name: Ahmadiniaz, Naser
name: Balli, Filippo Maria
name: Corradini, Olindo
name: Lopez-Arcos, Cristhiam
name: Velez, Alexander Quintero
name: Schubert, Christian
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The relation for the gravity polarisation tensor as the tensor product of two gluon polarisation vectors has been well-known for a long time, but a version of this relation for multi-particle fields is presently still not known. Here we show that in order for this to happen we first have to ensure that the multi-particle polarisations satisfy colour-kinematics duality. In previous work it has been show that this arises naturally from the Bern-Kosower formalism for one-loop gluon amplitudes, and here we show that the tensor product for multi-particle fields arise naturally in the Bern-Dunbar-Shimada formalism for one-loop gravity amplitudes. This allows us to formulate a new prescription for double-copy gravity Berends-Giele currents, and to obtain both the colour-dressed Yang-Mills Berends-Giele currents in the Bern-Carrasco-Johansson gauge and the gravitational Berends-Giele currents explicitly. An attractive feature of our formalism is that it never becomes necessary to determine gauge transformation terms. Our double-copy prescription can also be applied to other cases, and to make this point we derive the double-copy perturbiners for $α'$-deformed gravity and the bi-adjoint scalar model.
description: 22 pages, 1 figure
Nearly tri-bimaximal mixing in the S_3 flavour symmetry
Creators: name: Mondragón, A.
name: Mondragón, M.
name: Peinado, E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present an analysis of the theoretical neutrino mixing matrix, V_{PMNS}^{th}, previously derived in the framework of the minimal S_3-invariant extension of the Standard Model. All entries in the neutrino mixing matrix, V_{PMNS}^{th}, the mixing angles and the Majorana phases are given as exact, explicit analytical functions of the mass ratios of the charged leptons and neutrinos, and one Dirac phase, in excellent agreement with the the latest experimental data. Here, it will be shown that all entries in V_{PMNS}^{th} are numerically very close to the tri-bimaximal form of the neutrino mixing matrix, so that V_{PMNS}^{th} may be written as V^{tri}+ΔV_{PMNS}^{tri}. The small correction ΔV_{PMNS}^{tri} is expressed as a sum of two terms: first, a small correction term proportional to m_{e}/m_μ depending only on the charged lepton mass ratios and, second, a Cabbibo-like, small term, δt_{12}, which is a function of both the charged lepton and the neutrino mass ratios.
description: 6 pages, Talk given at XI Mexican Workshop on Particles and Fields, Tuxtla Gutierrez, Chiapas, Mexico, 7-12 Nov 2007. To be published in AIP conference proceedings
Regularity of fractional maximal functions through Fourier multipliers
Creators: name: Beltran, David
name: Ramos, João Pedro
name: Saari, Olli
Publisher: name: arXiv
Year: 2018
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 42B15, 42B25, 46E35

description: We prove endpoint bounds for derivatives of fractional maximal functions with either smooth convolution kernel or lacunary set of radii in dimensions $n \geq 2$. We also show that the spherical fractional maximal function maps $L^{p}$ into a first order Sobolev space in dimensions $n \geq 5$.
description: final version, to appear in Journal of Functional Analysis
Habitable Planet Formation in Extreme Planetary Systems: Systems with Multiple Stars and/or Multiple Planets
Creators: name: Haghighipour, Nader
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Understanding the formation and dynamical evolution of habitable planets in extrasolar planetary systems is a challenging task. In this respect, systems with multiple giant planets and/or multiple stars present special complications. The formation of habitable planets in these environments is strongly affected by the dynamics of their giant planets and/or their stellar companions. These objects have profound effects on the structure of the disk of planetesimals and protoplanetary objects in which terrestrial-class planets are formed. To what extent the current theories of planet formation can be applied to such "extreme" planetary systems depends on the dynamical characteristics of their planets and/or their binary stars. In this paper, I present the results of a study of the possibility of the existence of Earth-like objects in systems with multiple giant planets (namely Upsilon Andromedae, 47 UMa, GJ 876, and 55 Cnc) and discuss the dynamics of the newly discovered Neptune-size object in 55 Cnc system. I will also review habitable planet formation in binary systems and present the results of a systematic search of the parameter-space for which Earth-like objects can form and maintain long-term stable orbits in the habitable zones of binary stars.
description: 6 pages, 5 figures, to appear in the Proceedings of the 249th IAU Meeting: "Exoplanets: Detection, Formation and Dynamics" (Suzhou, China)
Disordering of the (3x1) reconstruction on Si(113) and the chiral three-state Potts model
Creators: name: Yang, Y.-N.
name: Williams, Ellen D.
name: Park, R. L.
name: Bartelt, N. C.
name: Einstein, Theodore L.
Publisher: name: American Physical Society
Year: 1990

description: We have used high-resolution low-energy electron diffraction to study the disordering of the (3x1) reconstruction on Si(113). We find that the reconstruction disorders via a continuous transition at approximately 850 K. Above the transition temperature the positions of the superlattice diffraction beams shift away from their commensurate positions. The shift is proportional to the broadening of the beams, as expected from basic scaling arguments for a system in the chiral three-state Potts-model universality class.
title: The interplay between star formation and the nuclear environment of our Galaxy: deep X-ray observations of the Galactic centre Arches and Quintuplet clusters
Creators: name: Wang, QD
name: Dong, H
name: Lang, C
Publisher: name: University of Massachusetts Amherst
Year: 2006
Subjects: subject: * stars: formation; * stars: winds
subject: outflows; * stars: Wolf–Rayet; * ISM: clouds; * Galaxy: centre; * X-rays: ISM
subject: Astrophysics and Astronomy

description: This is the pre-published version harvested from ArXiv. The published version is located at http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2966.2006.10656.x/abstract
description: The Galactic centre (GC) provides a unique laboratory for a detailed examination of the interplay between massive star formation and the nuclear environment of our Galaxy. Here, we present a 100-ks Chandra Advanced CCD Imaging Spectrometer (ACIS) observation of the Arches and Quintuplet star clusters. We also report on a complementary mapping of the dense molecular gas near the Arches cluster made with the Owens Valley Millimeter Array. We present a catalogue of 244 point-like X-ray sources detected in the observation. Their number–flux relation indicates an overpopulation of relatively bright X-ray sources, which are apparently associated with the clusters. The sources in the core of the Arches and Quintuplet clusters are most likely extreme colliding wind massive star binaries. The diffuse X-ray emission from the core of the Arches cluster has a spectrum showing a 6.7-keV emission line and a surface intensity profile declining steeply with radius, indicating an origin in a cluster wind. In the outer regions near the Arches cluster, the overall diffuse X-ray enhancement demonstrates a bow shock morphology and is prominent in the Fe Kα 6.4-keV line emission with an equivalent width of ∼1.4 keV. Much of this enhancement may result from an ongoing collision between the cluster and the adjacent molecular cloud, which have a relative velocity ≳120 km−1. The older and less-compact Quintuplet cluster contains much weaker X-ray sources and diffuse emission, probably originating from low-mass stellar objects as well as a cluster wind. However, the overall population of these objects, constrained by the observed total diffuse X-ray luminosities, is substantially smaller than expected for both clusters, if they have normal Miller & Scalo initial mass functions. This deficiency of low-mass objects may be a manifestation of the unique star formation environment of the GC, where high-velocity cloud–cloud and cloud–cluster collisions are frequent.
Additional file 2: of How do clients in Australia experience Consumer Directed Care?
Creators: name: Gill, Liz
name: Bradley, Sandra
name: Cameron, Ian
name: Ratcliffe, Julie
Publisher: name: figshare
Year: 2018
Subjects: subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: CDC Codes and Categories. (PDF 283 kb)
Pair correlations in sandpile model: a check of logarithmic conformal field theory
Creators: name: Poghosyan, V. S.
name: Grigorev, S. Y.
name: Priezzhev, V. B.
name: Ruelle, P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We compute the correlations of two height variables in the two-dimensional Abelian sandpile model. We extend the known result for two minimal heights to the case when one of the heights is bigger than one. We find that the most dominant correlation log r/r^4 exactly fits the prediction obtained within the logarithmic conformal approach.
description: 5 pages
title: ADCO, Cartulaire de Cîteaux pour les possessions de Chaugey et Maison-Dieu (Fin XVe siècle), Cart. 181 (11 H 754), 165 folios, f. 0044
Creators: name: de la Côte d'Or, Archives départementales
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2017
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: cartulaire
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Cartulaire de Cîteaux pour les possessions de Chaugey et Maison-Dieu (Fin XVe siècle), Archives départementales de la Côte-d'Or, Cart. 181 (11 H 754), 165 folios, f. 0044, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de Cîteaux pour les possessions de Chaugey et Maison-Dieu (Fin XVe siècle), Archives départementales de la Côte-d'Or, Cart. 181 (11 H 754), 165 folios, f. 0044, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: abbaye de Cîteaux
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: http://www.wikidata.org/entity/Q843261
Annual modulations of the angular recoil-flux/energy distributions of WIMP-scattered target nuclei observed at an underground laboratory
Creators: name: Shan, Chung-Lin
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In this article, we compare the target and WIMP-mass dependent "annual modulations" of the angular distributions of the recoil flux and energy of WIMP-scattered target nuclei observed at different underground laboratories. For readers' reference, simulation plots with different WIMP masses and frequently used target nuclei for all functionable underground laboratories can be found and downloaded on our online (interactive) demonstration webpage (http://www.tir.tw/phys/hep/dm/amidas-2d/).
description: 9 pages, 7 figures, to be compacted for the proceedings of the 17th International Conference on Topics in Astroparticle and Underground Physics (TAUP 2021), August 26 - September 3, Valencia, Spain
The standard fair sampling assumption is not necessary to test local realism
Creators: name: Berry, Dominic W.
name: Jeong, Hyunseok
name: Stobinska, Magdalena
name: Ralph, Timothy C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Almost all Bell-inequality experiments to date have used postselection, and therefore relied on the fair sampling assumption for their interpretation. The standard form of the fair sampling assumption is that the loss is independent of the measurement settings, so the ensemble of detected systems provides a fair statistical sample of the total ensemble. This is often assumed to be needed to interpret Bell inequality experiments as ruling out hidden-variable theories. Here we show that it is not necessary; the loss can depend on measurement settings, provided the detection efficiency factorises as a function of the measurement settings and any hidden variable. This condition implies that Tsirelson's bound must be satisfied for entangled states. On the other hand, we show that it is possible for Tsirelson's bound to be violated while the CHSH-Bell inequality still holds for unentangled states, and present an experimentally feasible example.
description: 12 pages, includes experimental proposal
UMBC researchers receive a Fast Grant to study antivirals’ effectiveness against COVID-19
Creators: name: Hansen, Sarah
Publisher: name: UMBC News
Year: 2020
Subjects: Katherine Seley-Radtke
UMBC Chemistry & Biochemistry Department
Chuck Bieberich
UMBC Biological Sciences Department

description: Photographer: Michael Radtke, Marlayna Demond
Terrace-width distributions on vicinal Si(111)
Creators: name: Wang, X.-S.
name: Goldberg, J. L.
name: Bartelt, N. C.
name: Einstein, Theodore L.
name: Williams, Ellen D.
Publisher: name: American Physical Society
Year: 1991

description: Using scanning tunneling microscopy, we have quantitatively characterized the configurations of steps on vicinal Si(111) surfaces misoriented by 1.2 degrees and 2.3 degrees towards the (1- 1- 2) direction. The measured terrace-width distributions are strongly peaked, consistent with predictions for thermally wandering steps. However, the distributions are much narrower than predicted for the simple terrace-step-kink model, indicating that the steps interact with energetic short-range repulsions. The magnitude of this energetic repulsion is gauged from a Gaussian fit to the data. The width of the distribution scales with step density as expected for repulsions which decay as the inverse square of step separation.
Monodromy and Log Geometry
Creators: name: Achinger, Piotr
name: Ogus, Arthur
Publisher: name: arXiv
Year: 2018
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14D05, 14A20

description: A now classical construction due to Kato and Nakayama attaches a topological space (the "Betti realization") to a log scheme over $\mathbf{C}$. We show that in the case of a log smooth degeneration over the standard log disc, this construction allows one to recover the topology of the germ of the family from the log special fiber alone. We go on to give combinatorial formulas for the monodromy and the $d^2$ differentials acting on the nearby cycle complex in terms of the log structures. We also provide variants of these results for the Kummer etale topology. In the case of curves, these data are essentially equivalent to those encoded by the dual graph of a semistable degeneration, including the monodromy pairing and the Picard-Lefschetz formula.
description: 76 pages, 1 figure
Defining Art  in the Age of Post-Human Creativity and its Impacts  on the Definition of Heritage.
Creators: name: Gladden-Obidzinska, Bogna J.
Publisher: name: Zenodo
Year: 2025
Subjects: subject: Cultural heritage
subject: Art
subject: Art/history
subject: Principle of sustainability
subject: Aesthetics
subject: Anesthetics
subject: Evaluation

description: The presentation "Defining Art in the Age of Post-Human Creativity and its Impacts on the Definition of Heritage" explores the evolving definitions of art and its impact on heritage protection. It traces the historical transformations of art from antiquity through the modern era, highlighting different paradigms such as craftsmanship, scientific foresight, and radical creativity. The document also discusses various attempts to define art in the 20th century, referencing the Disjunctive Definition of Art and theories like Institutional, Intentional-Historical, and Cluster Theory.

In the 21st century, digital forms such as NFTs, VR, and AI-generated art further challenge traditional notions of art. The presentation examines key heritage protection frameworks, including the Venice Charter (1964), UNESCO Paris Conventions (1972, 2003), and the Nara Document (1994), emphasizing the shift from material preservation to non-material and digital heritage.

Finally, the presentation proposes a redefined concept of heritage based on autonomy, sustainability, and flexibility, advocating for an adaptable approach to preservation that includes future value and self-sufficiency from inception.
1H NMR,13C NMR and HRMS date of Tetraphenylmethane and Tetrakis(4-bromophenyl)methane
Creators: name: liu, xiongli
Publisher: name: figshare
Year: 2022
Subjects: subject: NMR Spectroscopy
subject: Organic Chemistry
subject: FOS: Chemical sciences

description: The upload file related to the 1H NMR,13C NMR and HRMS of Tetraphenylmethane and Tetrakis(4-bromophenyl)methane.