cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Enhancing Time-Resolved THz Systems Through the Integration of Optical Fibers
Creators: name: Couture, Nicolas
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2023
Subjects: Terahertz
Spectroscopy
Optical fiber
Single-pulse THz spectroscopy
Nonlinear optics
Time-resolved

description: Time-resolved terahertz (THz) spectroscopy is an emerging optical characterization technique with the potential of becoming standard practice in fundamental research and in industry. These systems have the ability to be extremely broadband and can retrieve the phase and amplitude information of a THz pulse transmitted through a material, allowing the complex dielectric function of the material to be extracted. Although these systems are already extremely impactful, they nonetheless have their shortcomings. Namely, the data acquisition time required for a single measurement hinders their practicality in an industrial setting or retrieving interesting dynamics within a sample that are occurring on faster timescales. Moreover, broadband THz systems carry a significant financial burden as they rely on ultrafast near-infrared (NIR) sources delivering sub-100 fs pulses, limiting their accessibility. In this work, we address these issues plaguing time-resolved THz systems with the implementation of optical fibers. We begin by describing the physical processes governing ultrashort pulse propagation in fiber and the generation and detection of THz pulses via nonlinear effects in semiconductor crystals. We then design and demonstrate a THz detection scheme able to resolve each of the generated THz pulses at a repetition rate of 50 kHz. This includes using fiber to generate a chirped NIR supercontinuum, imprinting THz waveforms onto the NIR spectrum and thereby enabling single-shot THz detection; and using fiber to achieve photonic time-stretch, a technique allowing us to detect each of the THz-encoded NIR pulses with high-speed electronics at a rate determined by the repetition rate of the laser. The resulting system is then used to track carrier dynamics in a semiconductor as they are dynamically accumulating and recombining. We then combine nonlinear propagation in optical fiber with a time-resolved THz system allowing us to achieve broadband THz generation and detection. We describe two systems relying on this general scheme: The first system relies on a compact and cost-effective laser source and a standard fiber to generate and detect a THz spectrum extending up to 6 THz, alleviating the financial strain imposed by systems relying on sophisticated laser sources without sacrificing performance. The other system relies on an amplified laser source and gas-filled hollow-core photonic crystal fiber (PCF) to generate a tunable spectrum up to 20 THz. Finally, we investigate the generation of a supercontinuum spanning more than two octaves inside a highly nonlinear solid-core PCF. For the first time, we explore both the spectral intensity and polarization structure of such a broad optical spectrum approaching the mid-infrared region.
title: Fathers Stepping Up? A Cross-National Comparison of Fathers’ Domestic Labor and Parents’ Satisfaction with the Division of Domestic Labor During the COVID-19 Pandemic (accepted)
Creators: name: Petts, Richard
name: André, Stéfanie
name: Carlson, Daniel
name: Chung, Heejung
name: Milkie, Melissa
name: Remery, Chantal
name: Scheibling, Casey
name: Shafer, Kevin
name: Yerkes, Mara
Publisher: name: Taylor & Francis
Year: 2023

description: The COVID-19 pandemic disrupted work and family life around the world. For parents, this upending meant a potential re-negotiation of the “status quo” in the gendered division of labor. A comparative lens provides extended understandings of changes in fathers’ domestic work based in socio-cultural context—in assessing the size and consequences of change in domestic labor in relation to the type of work-care regime. Using novel harmonized data from four countries (the United States, Canada, the United Kingdom, and the Netherlands) and a work-care regime framework, this study examines cross-national changes in fathers’ shares of domestic labor during the early months of the pandemic and whether these changes are associated with parents’ satisfaction with the division of labor. Results indicate that fathers’ shares of housework and childcare increased early in the pandemic in all countries, with fathers’ increased shares of housework being particularly pronounced in the US. Results also show an association between fathers’ increased shares of domestic labor and mothers’ increased satisfaction with the division of domestic labor in the US, Canada, and the UK. Such comparative work promises to be generative for understanding the pandemic’s imprint on gender relations far into the future.
description: Author's Accepted Manuscript
Urnen aus einem Gräberfeld der frühen Eisenzeit in der Gemarkung Gölenkamp, Kr. Grafschaft Bentheim
Creators: name: Peters, Hans-Günter
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: -
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 39 (1970): Nachrichten aus Niedersachsens Urgeschichte
Letter from Wayne J. Pond to Avery Russell, October 28, 1988
Creators: name: Pond, Wayne Johnston
name: National Humanities Center (U.S.)
Publisher: name: Columbia University
Year: 2018
Subjects: Radio programs
Civil rights

description: Letter sent from National Humanities Center along with copy of audiocassette recording of Carnegie Corporation-sponsored program "From Protest to Power: Recent History of Civil Rights in the United States," including fact sheet with technical details on the program.
High temperature limit in static backgrounds
Creators: name: Brandt, F. T.
name: Siqueira, J. B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We prove that the hard thermal loop contribution to static thermal amplitudes can be obtained by setting all the external four-momenta to zero before performing the Matsubara sums and loop integrals. At the one-loop order we do an iterative procedure for all the 1PI one-loop diagrams and at the two-loop order we consider the self-energy. Our approach is sufficiently general to the extent that it includes theories with any kind of interaction vertices, such as gravity in the weak field approximation, for $d$ space-time dimensions. This result is valid whenever the external fields are all bosonic.
description: 15 pages, 11 figures. To be published in Physical Review D
Eine eiserne Tüllenaxt von Altmerdingsen, Kr. Burgdorf
Creators: name: Nowothnig, Walter
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: -
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 39 (1970): Nachrichten aus Niedersachsens Urgeschichte
Is a tabletop search for Planck scale signals feasible?
Creators: name: Bekenstein, Jacob D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum gravity theory is untested experimentally. Could it be tested with tabletop experiments? While the common feeling is pessimistic, a detailed inquiry shows it possible to sidestep the onerous requirement of localization of a probe on Planck length scale. I suggest a tabletop experiment which, given state of the art ultrahigh vacuum and cryogenic technology, could already be sensitive enough to detect Planck scale signals. The experiment combines a single photon's degree of freedom with one of a macroscopic probe to test Wheeler's conception of "quantum foam", the assertion that on length scales of the order Planck's, spacetime is no longer a smooth manifold. The scheme makes few assumptions beyond energy and momentum conservations, and is not based on a specific quantum gravity scheme.
description: 9 pages, two jpg figures, RevTeX, added references, effects of dispersion shown negligible, quantum black hole argument tightened, more noise sources analyzed, summary section added. To appear in Physical Review D
A LIBERDADE QUE NAUFRAGA
Creators: name: Santana, José Cláudio Pavão
Publisher: name: Zenodo - Cadernos da Pena do Pavao
Year: 2023

description: Ano 08 – n. 41/2020
Democracia em afogamento
Não estranhem a foto. Ela não traduz beleza. Ela traduz um sentimento, uma sensação das mais angustiantes. Ela fala de liberdade naufragando.
Todos os dias vejo juristas, jovens e velhos, falarem de pandemia, pós-pandemia. Envolvem o jurídico no tema como se o amanhã pudesse significar o alvorecer de algo novo. Não! Não haverá o novo quando o velho já se instalou no homem.
Ein Grabfund der römischen Kaiserzeit von Homfeld-Bruchmühlen, Kr. Grafschaft Hoya
Creators: name: Nowothnig, Walter
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: -
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 39 (1970): Nachrichten aus Niedersachsens Urgeschichte
Neue Untersuchungen auf dem sächsischen Urnenfriedhof von Issendorf, Kr. Stade
Creators: name: Janssen, Walter
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: -
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 39 (1970): Nachrichten aus Niedersachsens Urgeschichte
Funde aus dem Kreis Lüchow-Dannenberg
Creators: name: Pudelko, Alfred
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: -
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 39 (1970): Nachrichten aus Niedersachsens Urgeschichte
Untersuchungen auf dem Hügelgrabfeld der nachchristlichen Eisenzeit im „Ole Hai" im Elm, Gemarkungen Lelm und Räbke, Kr. Helmstedt
Creators: name: Niquet, Franz
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: -
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 39 (1970): Nachrichten aus Niedersachsens Urgeschichte
Length scale dependence of DNA mechanical properties
Creators: name: Noy, Agnes
name: Golestanian, Ramin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Biomolecules (q-bio.BM)
subject: FOS: Biological sciences

description: Although mechanical properties of DNA are well characterized at the kilo base-pair range, a number of recent experiments have suggested that DNA is more flexible at shorter length scales, which correspond to the regime that is crucial for cellular processes such as DNA packaging and gene regulation. Here, we perform a systematic study of the effective elastic properties of DNA at different length scales by probing the conformation and fluctuations of DNA from single base-pair level up to four helical turns, using trajectories from atomistic simulation. We find evidence that supports cooperative softening of the stretch modulus and identify the essential modes that give rise to this effect. The bend correlation exhibits modulations that reflect the helical periodicity, while it yields a reasonable value for the effective persistence length, and the twist modulus undergoes a smooth crossover---from a relatively smaller value at the single base-pair level to the bulk value---over half a DNA-turn.
description: 5 pages, 4 figures, accepted for publication in Phys. Rev. Lett
Vierzig Jahre Förderung der archäologischen Forschung in Nord- und Nordwestdeutschland durch die Deutsche Forschungsgemeinschaft (Notgemeinschaft der deutschen Wissenschaft)
Creators: name: Jankuhn, Herbert
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: -
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 39 (1970): Nachrichten aus Niedersachsens Urgeschichte
Surface codes: Towards practical large-scale quantum computation
Creators: name: Fowler, Austin G.
name: Mariantoni, Matteo
name: Martinis, John M.
name: Cleland, Andrew N.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: This article provides an introduction to surface code quantum computing. We first estimate the size and speed of a surface code quantum computer. We then introduce the concept of the stabilizer, using two qubits, and extend this concept to stabilizers acting on a two-dimensional array of physical qubits, on which we implement the surface code. We next describe how logical qubits are formed in the surface code array and give numerical estimates of their fault-tolerance. We outline how logical qubits are physically moved on the array, how qubit braid transformations are constructed, and how a braid between two logical qubits is equivalent to a controlled-NOT. We then describe the single-qubit Hadamard, S and T operators, completing the set of required gates for a universal quantum computer. We conclude by briefly discussing physical implementations of the surface code. We include a number of appendices in which we provide supplementary information to the main text.
description: 54 pages, 35 figures, version incorporating referee and community feedback. Additional comments welcome
Feustel, Rudolf: Menschen, Affenmenschen, Affen
Creators: name: Heberer, G.
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Rezension zu: Feustel, Rudolf: Menschen, Affenmenschen, Affen. 45 Abb. Komm. Verlag Hermann Böhlau Nachf., Weimar 1969
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 39 (1970): Nachrichten aus Niedersachsens Urgeschichte
Informationsblätter zu Nachbarwissenschaften der Ur- und Frühgeschichte, herausgegeben von Volker Arnold, Ralf Busch, Jürgen Hoika, Doris Weiler
Creators: name: Jankuhn, Herbert
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Rezension zu: Informationsblätter zu Nachbarwissenschaften der Ur- und Frühgeschichte, herausgegeben von Volker Arnold, Ralf Busch, Jürgen Hoika, Doris Weiler; Schriften des Schleswiger Kreises, 32 S. Als Manuskript gedruckt bei E. Goltze KG, Göttingen 1970
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 39 (1970): Nachrichten aus Niedersachsens Urgeschichte
Wegewitz, Willi: Reihengräberfriedhöfe und Funde aus spätsächsischer Zeit im Kreis Harburg
Creators: name: Genrich, Albert
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Rezension zu: Wegewitz, Willi: Reihengräberfriedhöfe und Funde aus spätsächsischer Zeit im Kreis Harburg. 126 S., 40 Tafeln, 48 Abb. im Text, Fundtabellen und einem ausführlichen Schrifttumsverzeichnis. Neumünster 1968
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 39 (1970): Nachrichten aus Niedersachsens Urgeschichte
title: Der Einfluss fiktionaler Suiziddarstellungen auf die Suizidalität von Rezipienten: eine Analyse bisheriger Forschung zu den Auswirkungen der U.S.-Serie 13 Reasons Why
Creators: name: Hasewinkel, Marie-Charlotte
Publisher: name: Friedrich-Schiller-Universität Jena
Year: 2019
Subjects: subject: Selbstmord
subject: Selbstmordgefährdung
subject: Nachahmung
subject: Werther-Effekt
subject: 150
subject: 791

description: Fiktionale Suiziddarstellungen in den Medien stehen unter dem Verdacht, Nachahmungshandlungen unter den Rezipienten zu fördern. Ziel der vorliegenden Arbeit ist es daher, die Wirkung der Serie "13 Reasons Why" ("Tote Mädchen lügen nicht"), in welcher sich die Protagonistin das Leben nimmt, zu untersuchen. Dafür wird folgende Forschungsfrage gestellt: Welche Auswirkungen hat die Serie „13 Reasons Why“ auf die Suizidalität der Rezipienten? Zur Beantwortung der Forschungsfrage wurde eine systematische Literaturrecherche durchgeführt. Die Ergebnisse der dadurch identifizierten Studien wurden anschließend vor dem Hintergrund der sozial-kognitiven Lerntheorie sowie verschiedener Entstehungsmodelle zur Erklärung von Suiziden analysiert und zusammengefasst. Aus der Untersuchung geht hervor, dass die Serie bei Zuschauern, welche bereits von mehreren Risikofaktoren betroffen sind, suizidale Verhaltensweisen verstärken kann. Jedoch lassen sich auch Aufklärungseffekte beobachten, welche Suizidalität auf lange Sicht reduzieren können. Auf dieser Grundlage ist es empfehlenswert, Richtlinien für die Darstellung von fiktionalen Suiziden in den Medien aufzustellen.
The Wave Function of Quantum de Sitter
Creators: name: Castro, Alejandra
name: Maloney, Alexander
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider quantum general relativity in three dimensions with a positive cosmological constant. The Hartle-Hawking wave function is computed as a function of metric data at asymptotic future infinity. The analytic continuation from Euclidean Anti-de Sitter space provides a natural integration contour in the space of metrics, allowing us -- with certain assumptions -- to compute the wave function exactly, including both perturbative and non-perturbative effects. The resulting wave function is a non-normalizable function of the conformal structure of future infinity which is infinitely peaked at geometries where I^+ becomes infinitely inhomogeneous. We interpret this as a non-perturbative instability of de Sitter space in three dimensional Einstein gravity.
description: 20 pages, 3 figures
Ausgrabung eines Grabhügels der Einzelgrabkultur in der Gemarkung Uelsen, Kr. Grafschaft Bentheim
Creators: name: Peters, Hans-Günter
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 41 (1972): Nachrichten aus Niedersachsens Urgeschichte
Rettungsgrabung eines älterbronzezeitlichen Grabhügels auf dem NATO-Schießplatz Bergen-Hohne
Creators: name: Dürre, Wilcken
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 41 (1972): Nachrichten aus Niedersachsens Urgeschichte
Additional file 10 of Discovery of extracellular vesicle-delivered miR-185-5p in the plasma of patients as an indicator for advanced adenoma and colorectal cancer
Creators: name: Shi, Yun-Jie
name: Fang, Yu-Xiang
name: Tian, Tong-Guan
name: Chen, Wei-Ping
name: Sun, Qiang
name: Guo, Fang-Qi
name: Gong, Pi-Qing
name: Li, Chun-Mei
name: Wang, Hao
name: Hu, Zhi-Qian
name: Li, Xin-Xing
Publisher: name: figshare
Year: 2023
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Pharmacology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Mental Health
subject: Hematology

description: Additional file 10: Table S4. Univariate and multivariate analyses of the association of predictors with early-mid stage CRC (I+II cohort).
Homolochunia kullar Griffin & Brown 1976
Creators: name: Forges, Bertrand Richer De
name: Ng, Peter K. L.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Homolidae
Homolochunia
Homolochunia kullar

description: Homolochunia kullar Griffin & Brown, 1976 (Figs. 4B, 5C, 6B) Homolochunia kullar Griffin & Brown, 1976: 249, figs. 1–3. — Guinot & Richer de Forges 1995: 432, figs. 49A–B, 50 a–b, 51. — Ng et al. 2008: 40. Material examined. New Caledonia: CONCALIS cruise, stn. CP 3013, 18°48.50’S 163°11.36’E, 669–683 m, 8 May 2008: 2 males (30.1 x 21.5 mm, 29.8 x 20.8 mm) (ZRC 2008.0980). Remarks. Griffin & Brown (1976) first described the species from Australia. This species has a very characteristic pseudo-chela on the P5, which closely resembles a real chela (Fig. 6B) (see also Guinot & Richer de Forges 1995: 527). Known only from the Coral and Tasman seas, from 500 to 825 m.
description: Published as part of Forges, Bertrand Richer De & Ng, Peter K. L., 2008, New western Pacific records of Homolidae De Haan, 1839, with descriptions of new species of Homolochunia Doflein, 1904, and Latreillopsis Henderson, 1888 (Crustacea: Decapoda: Brachyura), pp. 1-35 in Zootaxa 1967 on pages 7-8
description: {"references": ["Griffin, D. J. G. & Brown, D. E. (1976). Deepwater Decapod Crustacea from Eastern Australia: Brachyuran Crabs. Records of the Australian Museum, 30 (11), 248 - 271 figs. 1 - 10.", "Guinot, D. & Richer de Forges, B. (1995) Crustacea Decapoda Brachyura: Revision de la famille des Homolidae de Haan, 1839. In: A. Crosnier (ed.), Resultats des campagnes MUSORSTOM, Volume 13. Memoires du Museum national d'Histoire naturelle, 163, 283 - 517.", "Ng, P. K. L., Guinot, D. & Davie, P. J. F. (2008) Systema Brachyurorum: Part I. An annotated checklist of extant brachyuran crabs of the world. Raffles Bulletin of Zoology, Supplement 17, 1 - 286."]}
Phenomenology of a semi-Dirac semi-Weyl semi-metal
Creators: name: Banerjee, Swapnonil
name: Pickett, Warren E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We extend the study of fermionic particle-hole symmetric semi-Dirac (alternatively, semi-Weyo) dispersion of quasiparticles, $\varepsilon_K = \pm \sqrt{(k_x^2/2m)^2 + (vk_y)^2)} = \pm \varepsilon_0 \sqrt{K_x^4 + K_y^2}$ in dimensionless units, discovered computationally in oxide heterostructures by Pardo and collaborators. This unique system a highly anisotropic sister phase of both (symmetric) graphene and what has become known as a Weyl semimetal, with $^{1/2} \approx v$ independent of energy, and $^{1/2} \propto m^{-1/2}\sqrt{\varepsilon}$ being very strongly dependent on energy ($\varepsilon$) and depending only on the effective mass $m$. Each of these systems is distinguished by bands touching (alternatively, crossing) at a point Fermi surface, with one consequence being that for this semi-Dirac system the ratio $|χ_{orb}/χ_{sp}|$ of orbital to spin susceptibilities diverges at low doping. We extend the study of the low-energy behavior of the semi-Dirac system, finding the plasmon frequency to be highly anisotropic while the Hall coefficient scales with carrier density in the usual manner. The Faraday rotation behavior is also reported. For Klein tunneling for normal incidence on an arbitrarily oriented barrier, the kinetic energy mixes both linear (massless) and quadratic (massive) contributions depending on orientation. Analogous to graphene, perfect transmission occurs under resonant conditions, except for the specific orientation that eliminates massless dispersion. Comparisons of the semi-Dirac system are made throughout with both other types of point Fermi surface systems.
description: 12 pages, 5 figures
Driving phase slips in a superfluid atom circuit with a rotating weak link
Creators: name: Wright, K. C.
name: Blakestad, R. B.
name: Lobb, C. J.
name: Phillips, W. D.
name: Campbell, G. K.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We have observed well-defined phase slips between quantized persistent current states around a toroidal atomic (23Na) Bose-Einstein condensate. These phase slips are induced by a weak link (a localized region of reduced superfluid density) rotated slowly around the ring. This is analogous to the behavior of a superconducting loop with a weak link in the presence of an external magnetic field. When the weak link is rotated more rapidly, well-defined phase slips no longer occur, and vortices enter into the bulk of the condensate. A noteworthy feature of this system is the ability to dynamically vary the weak link and hence the critical current, a feature which is difficult to implement in superconducting or superfluid helium circuits.
Vortex solutions of the Popov equations
Creators: name: Manton, N. S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Popov recently discovered a modified version of the Bogomolny equations for abelian Higgs vortices, and showed they were integrable on a sphere of curvature 1/2. Here we construct a large family of explicit solutions, where the vortex number is an even integer. There are also a few solutions without vortices. The solutions are constructed from rational functions on the sphere.
description: Version 2, 9 pages. Additional discussion of vortex energies. This version solves equations for vortices, rather than anti-vortices. Vortices are "holomorphic" and have positive first Chern number
Futures with Jaime Escalante, Episodes 105 and 106, “Cartography” and “Fashion”
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2018
Subjects: Cartography
Fashion design

description: Packaging from videocassette recording of "Futures with Jaime Escalante," Episodes 105 and 106, "Cartography" and "Fashion."
Futures with Jaime Escalante - Episodes 101 and 102, “Agriculture” and “Aircraft Design”
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2018
Subjects: Agriculture
Airplanes--Design and construction

description: Packaging from videocassette recording of "Futures with Jaime Escalante," Episodes 101 and 102, "Agriculture" and "Aircraft Design."
title: In vitro single molecule and bulk phase studies reveal the AP-1 transcription factor cFos binds to DNA without its partner cJun (accepted)
Creators: name: Leech, James T.
name: Brennan, Andrew
name: Don, Nicola A.
name: Mason, Jody M.
name: Kad, Neil M.
Publisher: name: American Society for Biochemistry and Molecular Biology
Year: 2022

description: The AP-1 transcription factor family crucially regulates progression of the cell cycle, as well as playing roles in proliferation, differentiation, and the stress response. The two best described AP-1 family members, cFos and cJun, are known to dimerize to form a functional AP-1 heterodimer that binds to a consensus response element sequence. Although cJun can also homodimerize and bind to DNA, the canonical view is that cFos cannot bind DNA without heterodimerizing with cJun. Here, we show that cFos can actually bind to DNA in the absence of cJun in vitro. Using dual color single molecule imaging of cFos alone, we directly visualize binding to and movement on DNA. Of all these DNA-bound proteins, detailed analysis suggested 30-46% were homodimers. Furthermore, we constructed fluorescent protein fusions of cFos and cJun for FRET experiments. These constructs indicated complete dimerization of cJun, but although cFos could dimerize, its extent was reduced. Finally, to provide orthogonal confirmation of cFos binding to DNA we performed bulk-phase circular dichroism experiments that showed clear structural changes in DNA; these were found to be specific to the AP-1 consensus sequence. Taken together our results clearly show cFos can interact with DNA both as monomers and dimers independently of its archetypal partner, cJun.
description: Author's Accepted Manuscript
Orbital Phase Dependent Gamma-ray emissions from the Black Widow Pulsar
Creators: name: Wu, E. M. H.
name: Takata, J.
name: Cheng, K. S.
name: Huang, R. H. H.
name: Hui, C. Y.
name: Kong, A. K. H.
name: Tam, P. H. T.
name: Wu, J. H. K.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report on evidence for orbital phase-dependence of the gamma-ray emission from PSR B1957+20 black widow system by using the data of the Fermi Large Area Telescope. We divide an orbital cycle into two regions: a region containing the inferior conjunction, and the other region containing rest of the orbital cycle. We show that the observed spectra for the different orbital regions are fitted by different functional forms. The spectrum of the orbital region containing inferior conjunction can be described by a power-law with an exponential cutoff (PLE) model, which gives the best-fit model for the orbital phase that does not contain the inferior conjunction, plus an extra component above ~2.7 GeV. The emission above 3 GeV in this region is detected with a ~7-sigma confidence level. The gamma-ray data above ~2.7 GeV are observed to be modulated at the orbital period at the ~2.3-sigma level. We anticipate that the PLE component dominating below ~2.7 GeV originates from the pulsar magnetosphere. We also show that the inverse-Compton scattering of the thermal radiation of the companion star off a "cold" ultra-relativistic pulsar wind can explain the extra component above ~2.7 GeV. The black widow pulsar PSR B1957+20 may be the member of a new class of object, in the sense that the system is showing gamma-ray emission with both magnetospheric and pulsar wind origins.
description: 18 pages, 6 figures, 1 table, accepted for publication in The Astrophysical Journal
Additional file 11 of Discovery of extracellular vesicle-delivered miR-185-5p in the plasma of patients as an indicator for advanced adenoma and colorectal cancer
Creators: name: Shi, Yun-Jie
name: Fang, Yu-Xiang
name: Tian, Tong-Guan
name: Chen, Wei-Ping
name: Sun, Qiang
name: Guo, Fang-Qi
name: Gong, Pi-Qing
name: Li, Chun-Mei
name: Wang, Hao
name: Hu, Zhi-Qian
name: Li, Xin-Xing
Publisher: name: figshare
Year: 2023
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Pharmacology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Mental Health
subject: Hematology

description: Additional file 11: Table S5. Univariate and multivariate analyses of the association of predictors with advanced CRC (I+II cohort).
Eine Knopfsichel aus Werxhausen, Kr. Duderstadt
Creators: name: Busch, Ralf
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 41 (1972): Nachrichten aus Niedersachsens Urgeschichte
Lithium Abundances of the Super-Metal-Rich Open Cluster NGC 6253
Creators: name: Cummings, Jeffrey D.
name: Deliyannis, Constantine P.
name: Anthony-Twarog, Barbara
name: Twarog, Bruce
name: Maderak, Ryan M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: High-resolution CTIO 4-m/HYDRA spectroscopy of the super-metal-rich open cluster NGC 6253 ([Fe/H]=+0.43+/-0.01) has been used to study the stellar lithium (Li) abundances near the cluster's turnoff. NGC 6253 greatly expands the range of [Fe/H] for clusters that have a Li abundance analysis. This is important for studying the complicated effects of, and potential correlations with, stellar Fe abundance on surface Li abundance. Comparisons to the younger and less-metal-rich Hyades and to the similarly-aged but solar-metallicity M67 show that NGC 6253's Li abundances are qualitatively consistent with the prediction, from Standard Stellar Evolution Theory, that higher-metallicity stars have a greater Li depletion. Comparison with M67 provides evidence that the more-metal-rich NGC 6253 had a higher initial Li, which is consistent with expectations from models of Galactic Li production. NGC 6253 is also compared to the intermediate-aged NGC 3680, NGC 752, and IC 4651 open clusters. Comparison of the Li-gap positions in all six clusters shows: a) the gap's position in Teff is independent of metallicity, but b) higher-metallicity clusters have their gaps in higher-mass stars. In addition, the Li gap's position is shown not to evolve with age, which provides an important constraint for the non-standard depletion mechanisms that may create the Li gap.
Floquet topological insulators
Creators: name: Cayssol, Jérôme
name: Dóra, Balázs
name: Simon, Ferenc
name: Moessner, Roderich
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Topological insulators represent unique phases of matter with insulating bulk and conducting edge or surface states, immune to small perturbations such as backscattering due to disorder. This stems from their peculiar band structure, which provides topological protections. While conventional tools (pressure, doping etc.) to modify the band structure are available, time periodic perturbations can provide tunability by adding time as an extra dimension enhanced to the problem. In this short review, we outline the recent research on topological insulators in non equilibrium situations. Firstly, we introduce briefly the Floquet formalism that allows to describe steady states of the electronic system with an effective time-independent Hamiltonian. Secondly, we summarize recent theoretical work on how light irradiation drives semi-metallic graphene or a trivial semiconducting system into a topological phase. Finally, we show how photons can be used to probe topological edge or surface states.
description: 7 pages, 4 figures, comments are welcome
A ORGIA VOCABULAR
Creators: name: Santana, José Cláudio Pavão
Publisher: name: Zenodo - Cadernos da Pena do Pavao
Year: 2023

description: Ano 08 – n. 09/2020
Fui adolescente no Brasil em que revistas vendidas em banca possuíam embalagens com tarjas escondendo seios.
Frequentei cinemas e assisti a cenas que excitavam só pela imagens de musas que se mostravam nuas em atos sexuais que alimentavam a libido. Era "umazinha" na certa quando se chegava em casa.
Die Fortführung der Grabung auf dem Weinberg in Hitzacker (Elbe) im Jahre 1971
Creators: name: Wachter, Berndt
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 41 (1972): Nachrichten aus Niedersachsens Urgeschichte
Occupational Therapy Services Delivered during the COVID-19 Pandemic: A Scoping Review Protocol
Creators: name: Lal, Shalini
name: Ziegler, Daniela
name: Jazi, Sarra
name: Shilguia Petel
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Medicine and Health Sciences
subject: Social and Behavioral Sciences
subject: Tele-rehabilitation
subject: Pandemic
subject: Technology
subject: Tele-health
subject: Occupational Therapy
subject: Covid-19
subject: digital health
subject: Ehealth

description: We are conducting a scoping review to explore the use of Tele-Rehabilitation in Occupational Therapy during the COVID-19 pandemic. All practice settings, ages and health conditions will be considered to understand for which health conditions and clientele it has been used, its impacts, and facilitators and barriers to its implementation.
Feature Selection for Construction Organizational Competencies Impacting Performance
Creators: Tiruneh, Getaneh Gezahegne
Fayek, Aminah Robinson
Publisher: name: University of Alberta Library
Year: 2019

Organizational competencies have a significant influence on performance; therefore, it is vital that organizations in the construction industry assess and enhance their competencies in order to improve performance. The set of variables that captures construction organizational competencies is highly dimensional. Feature selection (FS) helps to reduce the dimensionality of data by using only a subset of variables to develop a model. The main objective of the research presented in this paper is the development of a fuzzy inference system (FIS) applying fuzzy c-means clustering (FCM) and FS using genetic algorithms (GAs). First, the parameters of FCM are optimized and used to develop an FIS. Then, the FIS is optimized using a GA. The root mean square error (RMSE) is used as a fitness function for GA optimization. This paper contributes an FS approach for construction engineering and management problems that are characterized by high dimensionality of feature space and few data instances.
Origin of rebounds with a restitution coefficient larger than unity in nanocluster collisions
Creators: name: Kuninaka, Hiroto
name: Hayakawa, Hisao
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We numerically investigate the mechanism of super rebounds for head-on collisions between nanoclusters in which the restitution coefficient is larger than unity. It is confirmed that the temperature and the entropy of the nanocluters decrease after the super rebounds by our molecular dynamics simulations. It is also found that the initial metastable structure plays a key role for the emergence of the super rebounds.
description: 8 pages, 10 figures, to be published in Phys. Rev. E
Futures with Jaime Escalante, Episodes 107 and 108, “Water Engineering” and “Optics”
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2018
Subjects: Water supply engineering
Optical engineering

description: Packaging from videocassette recording of "Futures with Jaime Escalante," Episodes 107 and 108, “Water Engineering” and “Optics.”
What planetary nebulae tell us about helium and the CNO elements in Galactic bulge stars
Creators: name: Buell, James F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Thermally pulsing asymptotic giant branch (TP-AGB) models of bulge stars are calculated using a synthetic model. The goal is to infer typical progenitor masses and compositions by reproducing the typical chemical composition and central star masses of planetary nebulae (PNe) in the Galactic bulge. The AGB tip luminosity and the observation that the observed lack of bright carbon stars in the bulge are matched by the models. Five sets of galactic bulge PNe were analyzed to find typical abundances and central star of planetary nebulae (CSPN) masses. These global parameters were matched by the AGB models. These sets are shown to be consistent with the most massive CSPN having the largest abundances of helium and heavy elements. The CSPN masses of the most helium rich (He/H$\ga$0.130 or $Y\ga0.34$) PNe are estimated to be between 0.58 and 0.62$ {\rm M}_{\sun}$. The oxygen abundance in form $\log{\rm (O/H)}+12$ of these highest mass CSPN is estimated to be $\approx$8.85. TP-AGB models with ZAMS masses between 1.2 and 1.8$ {\rm M}_{\sun}$ with $Y_{\rm ZAMS}\approx0.31-0.33$ and $Z_{\rm ZAMS}\approx0.19-0.22$ fit the typical global parameters, mass, and abundances of the highest mass CSPN. The inferred ZAMS helium abundance of the most metal enriched stars implies $dY/dZ\sim4$ for the Galactic bulge. These models produce no bright carbon stars in agreement with observations of the bulge. These models produce an AGB tip luminosity for the bulge in agreement with the observations. These models suggest the youngest main sequence stars in the Galactic bulge have enhanced helium abundance ($Y\approx0.32$) on the main sequence and their ages are between 2 and 4 Gyrs.
description: 21 pages, 11 figures, Accepted for publication in MNRAS
Zu den Grabungen auf dem Großen Burgberg bei Bad Harzburg
Creators: name: Schott-Keibel, Maria
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 41 (1972): Nachrichten aus Niedersachsens Urgeschichte
Radiative corrections to the Dalitz plot of K_{l3}^\pm decays: Contribution of the four-body region
Creators: name: Torres, J. J.
name: Martinez, A.
name: Neri, M.
name: Juarez-Leon, C.
name: Flores-Mendieta, Ruben
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We calculate the radiative corrections to the Dalitz plot of K_{l3}^\pm decays to order (alpha/pi)(q/M_1), where q is the momentum transfer and M_1 is the mass of the kaon. We restrict the analysis to the so-called four-body region, which arises when no discrimination of real photons is made either kinematically or experimentally. We present our results in two ways: the first one with the triple integration over the photon kinematical variables ready to be performed numerically and the second one in a fully analytical form. Our results can be useful in experimental analyses of the Dalitz plot, by evaluating the model-independent coefficients of the quadratic products of the form factors; we provide some numbers as a case example. We find a small, albeit non-negligible, contribution from the four-body region to the radiative correction to the total decay rate of K_{l3}^\pm decays.
description: 4 pages, no figures
Stochastic inviscid shell models: well-posedness and anomalous dissipation
Creators: name: Barbato, D.
name: Morandin, F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Probability (math.PR)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 60H15

description: In this paper we study a stochastic version of an inviscid shell model of turbulence with multiplicative noise. The deterministic counterpart of this model is quite general and includes inviscid GOY and Sabra shell models of turbulence. We prove global weak existence and uniqueness of solutions for any finite energy initial condition. Moreover energy dissipation of the system is proved in spite of its formal energy conservation.
description: v2 has updated introduction
Quantifying the intrinsic amount of fabrication disorder in photonic-crystal waveguides from optical far-field intensity measurements
Creators: name: Garcia, P. D.
name: Javadi, A.
name: Thyrrestrup, H.
name: Lodahl, P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Residual disorder due to fabrication imperfections has important impact in nanophotonics where it may degrade device performance by increasing radiation loss or spontaneously trap light by Anderson localization. We propose and demonstrate experimentally a method of quantifying the intrinsic amount of disorder in state-of-the-art photonic-crystal waveguides from far-field measurements of the Anderson-localized modes. This is achieved by comparing the spectral range that Anderson localization is observed to numerical simulations and the method offers sensitivity down to ~ 1 nm.
Futures with Jaime Escalante, Episodes 111 and 112, “Statistics” and “Sports Medicine”
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2018
Subjects: subject: Statistics
subject: FOS: Mathematics
subject: Sports medicine

description: Packaging from videocassette recording of "Futures with Jaime Escalante," Episodes 111 and 112, "Statistics" and "Sports Medicine."
Maier, Reinhard: Die ur- und frühgeschichtlichen Funde und Denkmäler des Kreises Göttingen
Creators: name: Laux, F.
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Maier, Reinhard: .Die ur- und frühgeschichtlichen Funde und Denkmäler des Kreises Göttingen. Materialhefte zur Ur- und Frühgeschichte Niedersachsens, Heft 5. Hildesheim (Verlagsbuchhandlung August Lax) 1971. 120 S., 78 Taf., 4 Karten
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 41 (1972): Nachrichten aus Niedersachsens Urgeschichte
Generalized modified gravity with the second order acceleration equation
Creators: name: Gao, Changjun
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In the theories of generalized modified gravity, the acceleration equation is generally fourth order. So it is hard to analyze the evolution of the Universe. In this paper, we present a class of generalized modified gravity theories which have the acceleration equation of second order derivative. Then both the cosmic evolution and the weak-field limit of the theories are easily investigated. We find that not only the Big-bang singularity problem but also the current cosmic acceleration problem could be easily dealt with.
description: 8 pages, 2 figures. To appear in Phys. Rev. D
Lamoha inflata
Creators: name: Forges, Bertrand Richer De
name: Ng, Peter K. L.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Homolidae
Lamoha
Lamoha inflata

description: Lamoha inflata (Guinot & Richer de Forges, 1981) (Figs. 14A–C, 15B–D) Hypsophrys inflata Guinot & Richer de Forges, 1981: 547, figs. 3C, 4C, pl. 4, fig. 2, 2a. — Guinot & Richer de Forges 1995: 454, figs. 1B, 55 A–B, 57a–b, 58C, 61c, j. Lamoha inflata — Ng 1998: 897. — Ng et al. 2008. Material examined. Philippines: eastern coast of Luzon, AURORA 2007, CC 2744, 15°58.7’N 121°50.4’E, 418–456 m, 2 June 2007: 1 female (15.8 x 13.4 mm) (ZRC 2008.0989). Remarks. Lamoha inflata was described from Western Samoa and has also been recorded from the Loyalty Is. and French Polynesia. It was caught by traps between 400 and 1000 m deep on the steep slopes of coral islands (Guinot & Richer de Forges 1981, 1995). The specimen collected on the eastern coast of Luzon is a new record for the Philippines and considerably extends the known range of this species. The overall colour of the fresh specimen was salmon-red (Fig. 15B–D).
description: Published as part of Forges, Bertrand Richer De & Ng, Peter K. L., 2008, New western Pacific records of Homolidae De Haan, 1839, with descriptions of new species of Homolochunia Doflein, 1904, and Latreillopsis Henderson, 1888 (Crustacea: Decapoda: Brachyura), pp. 1-35 in Zootaxa 1967 on pages 18-20
description: {"references": ["Guinot, D. & B. Richer de Forges (1981) Homolidae, rares ou nouveaux de l'Indo-Pacifique (Crustacea, Decapoda, Brachyura). Bulletin du Museum national d'Histoire naturelle, Paris, (4) 3 (A 2): 523 - 581.", "Guinot, D. & Richer de Forges, B. (1995) Crustacea Decapoda Brachyura: Revision de la famille des Homolidae de Haan, 1839. In: A. Crosnier (ed.), Resultats des campagnes MUSORSTOM, Volume 13. Memoires du Museum national d'Histoire naturelle, 163, 283 - 517.", "Ng, P. K. L., Guinot, D. & Davie, P. J. F. (2008) Systema Brachyurorum: Part I. An annotated checklist of extant brachyuran crabs of the world. Raffles Bulletin of Zoology, Supplement 17, 1 - 286."]}