cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Principles of Stable Isotope Geochemistry, 2nd Edition
Creators: name: Sharp, Zachary
Publisher: name: University of New Mexico
Year: 2017

description: Principles of Stable Isotope Geochemistry is written as a textbook to accompany a one semester course in Stable Isotope Geochemistry. There are 13 chapters, each dealing with a specific subtopic of the field. Other than Chapters 1 and 2 – introduction and definitions – most of the remaining chapters can be read without reliance on the preceding ones. It is also hoped that the book will serve as a general reference volume for researchers in the field.

Principles of Stable Isotope Geochemistry has been organized in such a way that major concepts are explained and accompanied by numerous examples. In most cases, the first published examples are used for illustration, giving both a broad base of understanding and an appreciation for the historical development of the field. Chapters are organized according to broad classifications. In some cases this is done by discipline such as Chapter 4 – Hydrology and in others by isotope, such as Chapter 10 – Sulfur. The new revised version is online. In this way, it can be modified as new advances are made in the field. Comments regarding errors, omissions or suggestions for improvements are welcome in order to keep the book up to date. This new online version is free of charge, available in PDF format. A hardcopy is also available.
Vitalität und Kalzifizierungsneigung porciner Aortenklappen : in-vitro-Untersuchungen
Creators: name: Büschenfeld, Tanja Samira
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2012
Subjects: subject: Kalzifizierung
subject: PIV
subject: CFD
subject: Dewey Decimal Classification::600 | Technik

description: [no abstract]
2018 Undergraduate Summer Research Fellowship Exit Survey
Creators: name: Bruthers, Brooke
name: Hedman, Emma
name: Matyas, Marsha
Publisher: name: figshare
Year: 2020
Subjects: subject: Survey Results
subject: 130303 Education Assessment and Evaluation
subject: FOS: Educational sciences

description: Survey instrument to assess APS undergraduate summer research fellow skills and knowledge after their summer research fellowship program.
Analyse der Funktion von Signaltransduktions-assoziierten Genen in der arbuskulären Mykorrhiza-Symbiose von Medicago truncatula
Creators: name: Czaja, Lisa Farina
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2012
Subjects: subject: Arbuscular mycorrhiza
subject: signal transduction
subject: Arbuskuläre Mykorrhiza
subject: Medicago truncatula
subject: Signaltransduktion
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
Refinement of the crystal structure of praseodymium orthoscandate, PrScO3
Creators: name: Gesing, Thorsten M.
name: Uecker, Reinhard
name: Buhl, Josef-Christian
Publisher: name: München : Oldenbourg
Year: 2009
Subjects: subject: mineralogy
subject: crystallography
subject: Mineralogie
subject: Kristallographie
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: O3PrSc, Pnma (no. 62), a = 5.780(1) angstrom, b = 8.025(2) angstrom, c = 5.608(1) angstrom, V = 260.1 angstrom(3), Z = 4, R-gt(F) = 0.025, wR(ref)(F-2) = 0.060, T = 298 K.
Landau-Zener transition with energy-dependent decay rate of the excited state
Creators: name: Raikh, M. E.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A remarkable feature of the Landau-Zener transition is insensitivity of the survival probability to the decay rate, of the excited state. Namely, the probability for a particle, which is initially in the ground state, to remain in the same state is insensitive to decay, which is due to e.g. coupling to continuum [V. M. Akulin and W. P. Schleich, Phys. Rev. A 46, 4110 (1992)]. This insensitivity was demonstrated for the case when the density of states in the continuum is energy-independent. We study the opposite limit when the density of states in the continuum is a step-like function of energy. As a result of this step-like behavior of the density of states, the decay rate of a driven excited level experiences a jump as a function of time at certain moment t_0. We take advantage of the fact that the analytical solution at tt_0 is known. We show that the decay enters the survival probability when t_0 is comparable to the transition time.
description: 5 pages, 1 figure
Anomalous thickness dependence of the Hall effect in ultrathin Pb layers on Si(111)
Creators: name: Vilfan, I.
name: Henzler, M.
name: Pfennigstorf, O.
name: Pfnür, Herbert
Publisher: name: College Park, MD : American Physical Society
Year: 2002
Subjects: subject: Hall effect
subject: ultrathin films
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: The magnetoconductive properties of ultrathin Pb films deposited on Si(111) are measured and compared with density-functional electronic band-structure calculations on two-dimensional, free-standing, 1 to 8 monolayers thick Pb(111) slabs. A description with free-standing slabs is possible because it turned out that the Hall coefficient is independent of the substrate and of the crystalline order in the film. We show that the oscillations in sign of the Hall coefficient observed as a function of film thickness can be explained directly from the thickness dependent variations of the electronic band-structure at the Fermi energy. © 2002 The American Physical Society.
Depinning transitions between adsorbate chains coupled by Friedel oscillations
Creators: name: Godzik, G.
name: Block, T.
name: Pfnür, Herbert
Publisher: name: College Park, MD : American Physical Society
Year: 2003
Subjects: subject: adsorbent
subject: molybdenum
subject: strontium
subject: adsorption
subject: anisotropy
subject: article
subject: chemical structure
subject: conformational transition
subject: electric potential
subject: electron diffraction
subject: energy
subject: excitation
subject: melting point
subject: molecular interaction
subject: oscillation
subject: phase transition
subject: structure analysis
subject: surface property
subject: temperature dependence
subject: theoretical model
subject: thermodynamics
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: The low coverage phase transitions of the p(8×1) and the p(5×1) chain structures of the Sr/Mo(112) system have been investigated with low-energy electron diffraction (LEED) at constant coverages. It turns out that both structures show similar physics. They first undergo depinning phase transitions at temperatures just below 100 K into striped domain wall structures. The domain wall lattice shows continuous melting at temperatures between 197 and 218 K. Coupling between the adsorbate chains can be described by the potential created by adsorbate-induced charge density waves involving surface states. Within this model domain wall formation appears as thermal excitation of stacking faults on a discrete lattice. For the p(5×1) structure, domain wall formation energies of approximately 65 and 38 meV have been derived for heavy and light walls, respectively, from a fit to the experimental data of depinning.
Peramium repens
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: O. repens L. (O. procurrens Wallr.) Cat. 65. l: Epinassey (Mariétan); Salvan-Finhaut (Coquoz); Finhaut-La Gueulaz (Exk. Soc. Murith.). - 2: Gampel-Naters (Stehler). -3: Orsières-Champex(Cruchet);Törbel (Stehler). -4: Binn (P.).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Mechanische Charakterisierung von Cu-Metallisierungen mit unterschiedlichen Durchkontaktierungsgeometrien und Rissbildungsprädiktion der Ta-Barriere
Creators: name: Ciptokusumo, Joharsyah
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2012
Subjects: subject: ULSI interconnects
subject: cracking prediction
subject: porosity in Ta barrier
subject: ULSI Metallisierung
subject: Rissbildung
subject: Porosität in einer Ta-Barriere
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: [no abstract]
The Art of Deleting: On Poetry and Erasure (Q&A)
Creators: name: Seiça, Álvaro
Publisher: name: Zenodo
Year: 2020
Subjects: Contemporary Poetry
Erasure
Book Censorship
Archive

description: This document registers the Q&A of the UCLA Information Studies Colloquium "The Art of Deleting: On Poetry and Erasure" by Álvaro Seiça. The talk presents recent outcomes connected to the research and book project “The Art of Deleting” (ARTDEL). ARTDEL is a 3-year project (2018-21) funded by the European Commission’s Marie Skłodowska-Curie Global Fellowship and the Norwegian Research Council, at the University of Bergen, the University of California, Los Angeles, and the University of Coimbra. The use of material and graphic erasure in the composition and formal display of poems has a varied tradition during the 20th century and, most prominently, in the early 21st century. Marks of erasure in literary works can be traced back at least to Heinrich Heine’s poetical narrative Reisebilder (1827), in which the author denounces and parodies state censorship by mimicking the censors’ cuts. Yet, since then, are all writers, artists, and poets using erasure in the same way? An overview of this expanding visual and literary form suggests that there are often formalist or conceptual concerns with no political aims, but that a great number of poets and artists also highlight themes and practices of resistance and activism, by connecting erasure with censorship and surveillance. While the first part of the talk will contrast clusters of erasure poetics, the second part will present archival research related to how book censorship and erasure unfolded under the New State, the Portuguese corporatist and fascist regime of 1933-74. By searching the archives of the political police PIDE/DGS and the Censorship Commission, by inventorying, for the first time ever, the full card index of the Censorship Commission, and by unearthing part of the original books censored by the regime, it is now possible to better understand practices, motives, and objectives of material erasure that served the propaganda of Salazar and Caetano’s regime. Having the knowledge of legal and political documents, it is appropriate to ask whether contemporary poets are using erasure or not in relation to history via documentary forms. While that does not seem to be the case in Portugal, in the United States there has been an erasing impulse, especially after the 2000s, to use declassified documents and redaction as found material for new creative work. The talk concludes with reflections on how different ideologic regimes in the post-Second World War in the US, Portugal and China seek to identify common threats among writers on the grounds of national security, patriotism, political subversion, pornography, gender roles or morals.
Contactless Excitation of Acoustic Resonance in Insulating Wafers
Creators: name: Zhai, Gan
name: Xin, Yizhou
name: Kopas, Cameron J.
name: Lachman, Ella
name: Field, Mark
name: Mutus, Josh Y.
name: Cicak, Katarina
name: Aumentado, Jose
name: Sung, Zuhawn
name: Halperin, William P.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Contactless excitation and detection of high harmonic acoustic overtones in a thin insulator single crystal are described using radio frequency spectroscopy techniques. Single crystal [001] silicon wafer samples were investigated, one side covered with a Nb thin film, the common starting point for fabrication of quantum devices. The coupling between electromagnetic signals and mechanical oscillation is achieved from the Lorentz force generated by an external magnetic field. This method is suitable for any sample with a metallic surface or covered with a thin metal film. High resolution measurements of the temperature dependence of the sound velocity and elastic constants of silicon are reported and compared with known results.
description: 4 pages, 5 figures
Fertigung und Erprobung eines Mikro-Wirbelstromsensors zur Abstandsmessung
Creators: name: Andreeva, Ekaterina
Publisher: name: Hannover : Universität
Year: 2005
Subjects: subject: Abstand
subject: Berührungslose Messung
subject: Dünnschichttechnik
subject: Mikrosensor
subject: Wirbelstrom
subject: Dewey Decimal Classification::600 | Technik::670 | Industrielle und handwerkliche Fertigung

description: [no abstract]
Fractional spinon excitations in the quantum Heisenberg antiferromagnetic chain
Creators: name: Mourigal, M.
name: Enderle, M.
name: Klöpperpieper, A.
name: Caux, J. -S.
name: Stunault, A.
name: Rønnow, H. M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Assemblies of interacting quantum particles often surprise us with properties that are difficult to predict. One of the simplest quantum many-body systems is the spin 1/2 Heisenberg antiferromagnetic chain, a linear array of interacting magnetic moments. Its exact ground state is a macroscopic singlet entangling all spins in the chain. Its elementary excitations, called spinons, are fractional spin 1/2 quasiparticles; they are created and detected in pairs by neutron scattering. Theoretical predictions show that two-spinon states exhaust only 71% of the spectral weight while higher-order spinon states, yet to be experimentally located, are predicted to participate in the remaining. Here, by accurate absolute normalization of our inelastic neutron scattering data on a compound realizing the model, we account for the full spectral weight to within 99(8)%. Our data thus establish and quantify the existence of higher-order spinon states. The observation that within error bars, the entire weight is confined within the boundaries of the two-spinon continuum, and that the lineshape resembles a rescaled two-spinon one, allow us to develop a simple physical picture for understanding multi-spinon excitations.
description: 22 pages, 4 figures, Supplementary materials
Ökologische und betriebliche Entwicklungspotentiale von Abwasserteichanlagen
Creators: name: Brüdern, Ulrike
Publisher: name: Hannover : Universität
Year: 2005
Subjects: subject: Abwasserteiche
subject: Nährstoffelimination
subject: Nitrifikation
subject: Makrophyten
subject: Faunenelemente
subject: Strukturdiversität
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: [no abstract]
Three-loop $β$-functions and two-loop anomalous dimensions for MSSM regularized by higher covariant derivatives in an arbitrary supersymmetric subtraction scheme
Creators: name: Haneychuk, Olesya
name: Shirokova, Valentina
name: Stepanyantz, Konstantin
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Three-loop $β$-functions of the Minimal Supersymmetric Standard Model regularized by higher covariant derivatives are obtained for an arbitrary supersymmetric subtraction scheme. For this purpose we first calculate two-loop anomalous dimensions for all MSSM chiral matter superfields defined in terms of the bare couplings. Then we use the NSVZ equations for the renormalization group functions defined in terms of the bare couplings, which are valid in all orders in the case of using the higher covariant derivative regularization. This gives the three-loop $β$-functions defined in terms of the bare couplings. After that, we construct the three-loop $β$-functions and the two-loop anomalous dimensions standardly defined in terms of the renormalized couplings for an arbitrary subtraction scheme. As a nontrivial correctness test, we verify that for a certain renormalization prescription the general results reproduce the ones obtained earlier in the $\overline{\mbox{DR}}$ scheme. Also this can be considered as an indepedent confirmation of the $\overline{\mbox{DR}}$ results.
description: 28 pages, the version accepted for publication in JHEP
More on Superconductors via Gauge/Gravity Duality with Nonlinear Maxwell Field
Creators: name: Momeni, Davood
name: Raza, Muhammad
name: Myrzakulov, Ratbay
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: We have developed the recent investigations on the second-order phase transition in the holographic superconductor using the probe limit for a nonlinear Maxwell field strength coupled to a massless scalar field. By analytic methods, based on the variational Sturm- Liouville minimization technique, we study the effects of the space-time dimension and the non-linearity parameter on the critical temperature and the scalar condensation of the dual operators on the boundary. Further, as a motivated result, we analytically deduce the DC conductivity in the low and zero temperatures regime. Especially in the zero temperature limit and in two dimensional toy model, we thoroughly compute the conductivity analytically. Our work clarifies more features of the holographic superconductors both in different space dimensions and on the effect of the non-linearity in Maxwell's strength field.
description: Journal of Gravity, Volume 2013, Article ID 782512
Stable coherent mode-locking based on π pulse formation in single-section lasers
Creators: name: Arkhipov, Rostislav
name: Pakhomov, Anton
name: Arkhipov, Mikhail
name: Babushkin, Ihar
name: Rosanov, Nikolay
Publisher: name: London : Nature Publishing Group
Year: 2021
Subjects: subject: lasers
subject: CML
subject: pulse duration
subject: pulse
subject: coherent mode-locking
subject: amplifier
subject: Dewey Decimal Classification::500 | Naturwissenschaften
subject: Dewey Decimal Classification::600 | Technik

description: Here we consider coherent mode-locking (CML) regimes in single-section cavity lasers, taking place for pulse durations less than atomic population and phase relaxation times, which arise due to coherent Rabi oscillations of the atomic inversion. Typically, CML is introduced for lasers with two sections, the gain and absorber ones. Here we show that, for certain combination of the cavity length and relaxation parameters, a very stable CML in a laser, containing only gain section, may arise. The mode-locking is unconditionally self-starting and appears due to balance of intra-pulse de-excitation and slow interpulse-scale pump-induced relaxation processes. We also discuss the scaling of the system to shorter pulse durations, showing a possibility of mode-locking for few-cycle pulses. © 2021, The Author(s).
2018 Undergraduate Summer Research Fellowship Entry Survey
Creators: name: Bruthers, Brooke
name: Hedman, Emma
name: Matyas, Marsha
Publisher: name: figshare
Year: 2020
Subjects: subject: Survey Results
subject: 130303 Education Assessment and Evaluation
subject: FOS: Educational sciences

description: Survey instrument to assess APS undergraduate summer research fellow skills and knowledge prior to beginning their summer research fellowship.
Adsorption geometry of OH adsorbed at F centers on a NaCl(100) surface
Creators: name: Malaske, U.
name: Pfnür, Herbert
name: Bässler, M.
name: Weiss, M.
name: Umbach, E.
Publisher: name: College Park, MD : American Physical Society
Year: 1996
Subjects: subject: chemisorption
subject: NEXAFS
subject: thin films
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: The orientation of molecular H2O in a bilayer on defect-free NaCl(100) and of chemisorbed OH adsorbed at F centers on the (100) surface of NaCl was investigated using angle-resolved O K edge near-edge x-ray-absorption fine-structure spectroscopy (NEXAFS). High-quality single crystalline thin films of NaCl(100) of about four monolayers thickness were grown on Ge(100). These films were bombarded with 250 eV electrons so that F and F′ centers of a maximum density of about 10% of a monolayer were created. Whereas on the defect-free surface only molecular water is adsorbed, dissociation occurs at the F centers and OH− is bound. NEXAFS of molecular water shows almost no angular dependence even in the monolayer. This finding is consistent with formation of a hydrogen bonded bilayer of water suggested earlier. The OH species formed at the F centers is found to be inclined with respect to the surface normal by 39°±4°. An adsorption model is proposed. © 1996 The American Physical Society.
Molekularbiologische und mikroskopische Untersuchungen am Pathosystem Diplocarpon rosae Wolf (Sternrusstau)-Rose
Creators: name: Blechert, Oliver
Publisher: name: Hannover : Universität
Year: 2005
Subjects: subject: Diplocarpon rosae
subject: Rosa spp.
subject: interaction
subject: Dewey Decimal Classification::600 | Technik::630 | Landwirtschaft, Veterinärmedizin

description: [no abstract]
Population III Star Formation In Large Cosmological Simulations I. Halo Temporal and Physical Environment
Creators: name: Crosby, Brian D.
name: O'Shea, Brian W.
name: Smith, Britton D.
name: Turk, Matthew J.
name: Hahn, Oliver
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a semi-analytic, computationally inexpensive model to identify halos capable of forming a Population III star in cosmological simulations across a wide range of times and environments. This allows for a much more complete and representative set of Population III star forming halos to be constructed, which will lead to Population III star formation simulations that more accurately reflect the diversity of Population III stars, both in time and halo mass. This model shows that Population III and chemically enriched stars coexist beyond the formation of the first generation of stars in a cosmological simulation until at least z~10, and likely beyond, though Population III stars form at rates that are 4-6 orders of magnitude lower than chemically enriched stars by z=10. A catalog of more than 40,000 candidate Population III forming halos were identified, with formation times temporally ranging from z=30 to z=10, and ranging in mass from 2.3x10^5 M_sun to 1.2x10^10 M_sun. At early times, the environment that Population III stars form in is very similar to that of halos hosting chemically enriched star formation. At later times Population III stars are found to form in low-density regions that are not yet chemically polluted due to a lack of previous star formation in the area. Population III star forming halos become increasingly spatially isolated from one another at later times, and are generally closer to halos hosting chemically enriched star formation than to another halo hosting Population III star formation by z~10.
description: 17 pages, 13 figures. Submitted to ApJ
Correlation of electronic and local structure of 4-hydroxy-thiophenol on NaCl(100) and Ag(100)
Creators: name: Tegenkamp, Christoph
name: Pfnür, Herbert
Publisher: name: College Park, MD : American Institute of Physics
Year: 2003
Subjects: subject: Adsorption
subject: Binding energy
subject: Chemical bonds
subject: Electron energy loss spectroscopy
subject: Electronic structure
subject: Molecules
subject: Morphology
subject: Photoelectron spectroscopy
subject: Probability density function
subject: Silver
subject: Sodium chloride
subject: Van der Waals forces
subject: Hydroxy-thiophenol
subject: Molecular adsorption
subject: Molecular emissions
subject: Restricted configuration interaction singles
subject: van der Waals interaction
subject: Organic compounds
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: The results of the electronic structure of HTP on NaCl(100) and on poly-Ag(100) obtained with UPS and EELS are presented. Due to the relatively weak interactions of HTP on both surfaces studied, and the low saturation densities in the first monolayers, the information from calculations of single isolated molecules turned out to be sufficient. It is seen that for stronger interactions with the substrate these must also be taken into account.
Functionally independent conservations laws in a quantum integrable model
Creators: name: Owusu, Haile
name: Shastry, B. Sriram
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study a recently proposed quantum integrable model defined on a lattice with N sites, with Fermions or Bosons populating each site, as a close relative of the well known spin-1/2 Gaudin model. This model has 2N arbitrary parameters, a linear dependence on an interaction type parameter x, and can be solved exactly. It has N known constants of motion that are linear in x. We display further constants of motion with higher Fermion content, that are are linearly independent of the known conservation laws. Our main result is that despite the existence of these higher conservation laws, the model has only N functionally independent conservation laws. Therefore we propose that N can be viewed as the number of degrees of freedom, in parallel to the classical definition of integrability.
description: 5 pages
Charakterisierung von EEPROM Tunneloxiden mittels transienter Strom- und Kapazitätsmessungen
Creators: name: Beug, Marc Florian
Publisher: name: Hannover : Universität
Year: 2005
Subjects: subject: Oxide bulk traps
subject: transient tunneling
subject: current weighting factors
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: [no abstract]
Analysis of Unwanted Spam Calls
Creators: name: Vij, Natasha
Publisher: name: Zenodo
Year: 2020

description: The Federal Communications Commission (FCC) has created a dashboard that tracks unwanted calls. This dataset is updated every day with new unwanted calls reflected. The purpose of this project is to look at trends regarding unwanted spam calls. In this project, I wanted to see annual trends, where these calls are more likely to take place, when these calls are most likely to occur, which months get the most number of unwanted calls, and the methods by which consumers receive these unwanted calls. While data collection started in 2000, this data looks at data from 2014 up until November 22, 2020. This is because the FCC started regularly updating this dataset.
Herstellung von humanen induzierten pluripotenten Stammzellen (iPS-Zellen) aus Nabelschnurblut
Creators: name: Haase, Alexandra
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2011
Subjects: subject: Induced pluripotent stem cells
subject: reprogramming
subject: cord blood
subject: Induzierte pluripotente Stammzellen
subject: Reprogrammierung
subject: Nabelschnurblut
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
title: Forestry innovation in western Newfoundland: Lyocell and diversification at Corner Brook pulp and paper limited
Creators: name: Gosse, Michelle
Publisher: name: Memorial University of Newfoundland
Year: 2019

description: The past decades have seen a decline in the production and export of both pulp and newsprint partly due to technological substitutions such as digital newspaper subscriptions and newspaper (media) apps. The potential development of a new bio-based product (lyocell pulp fluff) at Corner Brook Pulp and Paper Limited (CBPPL) is one way to build a new bio-based industry in western Newfoundland. Since its inception in 1972, Lyocell (a cellulose fiber) has been used for many applications such as textiles, hygiene products, cosmetic products, and protective clothing. This paper proposes the development of Lyocell fluff pulp for the steadily growing sustainable hygiene product market and uses a SWOT (Strengths, Weaknesses, Opportunities and Threats) analysis to determine the competitive intensity and attractiveness of this new industry.
 CBPPL (and Corner Brook) are well suited for the development of a new value-driven product. CBPPL has waterfront access to an ice-free port, access to production material via 1.5 million hectares of Crown land on Newfoundland’s western and central regions and partnerships with local sawmills and low-cost energy from the nearby Deer Lake hydroelectric power plant (owned and operated by CBPPL). Since CBPPL already has a chemical digester for wood pulp and access to spare storage and production facilities, the financial cost of developing a new product would be lower than creating a new facility.
 This paper focuses on highlighting the strengths of CBPPL and Corner Brook as a potential site for future innovation through the development of an industrial demonstration facility where cutting-edge bio-resource innovators and researchers can test their products before bringing them to full market scale. As Newfoundland does not have a bio-economy framework in place, several recommendations to fill in policy gaps and formulate a structure for innovation which will create an open dialogue for future progress in Newfoundland will be provided.
Frequency comb injection locking of mode locked lasers
Creators: name: Gat, Omri
name: Kielpinski, David
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: The two-frequency problem of synchronization of the pulse train of a passively mode locked soliton laser to an externally injected pulse train is solved in the weak injection regime. The source and target frequency combs are distinguished by the spacing and offset frequency mismatches. Locking diagrams map the domain in the mismatch parameter space where stable locking of the combs is possible. We analyze the dependence of the locking behavior on the relative frequency and chirp of the source and target pulses, and the conditions where the relative offset frequency has to be actively stabilized. Locked steady states are characterized by a fixed source-target time and phase shifts that map the locking domain.
description: 7 pages, 2 figures
EVH Black Hole Solutions With Higher Derivative Corrections
Creators: name: Yavartanoo, Hossein
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We analyze the effect of higher derivative corrections to the near horizon geometry of the extremal vanishing horizon (EVH) black hole solutions in four dimensions. We restrict ourselves to the Gauss-Bonnet correction with a dilation dependent coupling in an Einstein Maxwell dilaton theory. This action may represent the effective action as it arises in tree level heterotic string theory compactified to four dimensions or the K3 compactification of type II string theory. We show that EVH black holes, in this theory, develop an AdS3 throat in their near horizon geometry.
description: 15 pages
Cocreación, innovación y datos abiertos en ciudades de América Latina: lecciones de Buenos Aires, Ciudad de México y Montevideo
Creators: name: Bonina, Carla
Publisher: name: Zenodo
Year: 2015
Subjects: Open Data;
Innovation
Open Government

description: Castellano Existe un creciente entusiasmo por los posibles beneficios económicos y sociales de la utilización de datos abiertos en las ciudades de América Latina. Este reporte analiza el desarrollo de tres proyectos de datos abiertos de tres ciudades de América Latina: Buenos Aires, Ciudad de México y Montevideo, ciudades con estructuras innovadoras, que han logrado cierto nivel de implementación de sus iniciativas de datos abiertos. En particular, el reporte estudia de qué manera diferentes actores interactúan para generar valor con datos abiertos, es decir, los procesos de cocreación con datos abiertos. Esta investigación reporta hallazgos basados en evidencia, que fueron recopilados a lo largo de seis meses. Los resultados revelan que en los tres casos una combinación de liderazgo, recursos y alianzas claves entre gobiernos, asociaciones civiles, grupos y ciudadanos, son los principales mecanismos para la cocreación con datos abiertos en las ciudades. A la vez, los casos muestran diferencias en los niveles de implementación, colaboración y usos de los datos abiertos, con consecuencias para su desarrollo futuro. En vistas de los aportes, el informe ofrece una serie de retos y recomendaciones para el desarrollo de proyectos de datos abiertos en ciudades de la región. English There is increasing excitement about the potential economic and social benefits of using newly released public and private data in open format. In this piece, I study how open data projects unfold in three cities in Latin America, a region that has been moving comparatively quickly in embracing open data initiatives. To do so, this paper report findings from an exploratory, in-depth study of three cities of Latin America that have pioneered and already established open data projects: Buenos Aires, Mexico City, and Montevideo. The three cases have been selected because they either entail innovative structures, or have achieved certain maturity levels in their deployment or uses of open data. The sources of evidence, in turn, have been collected and analysed over 6 month. The findings reveal that in all three, a combination of leadership, resources and key partnerships between governments, civil associations, groups and citizens, provide the sources for co-creating practices in the cities. The cases show differences in levels of development and uses of open data, with consequences on their future development. In light of the findings, the report offers a series of critical challenges and recommendations for developing open data projects in cities.
Peramium repens
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: Der Bastard O. repens X spinosa nach Stehler bei Törbel.
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Asymmetric Ferromagnetic Resonance, Universal Walker Breakdown, and Counterflow Domain Wall Motion in the Presence of Multiple Spin-Orbit Torques
Creators: name: Linder, Jacob
name: Alidoust, Mohammad
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the motion of several types of domain wall profiles in spin-orbit coupled magnetic nanowires and also the influence of spin-orbit interaction on the ferromagnetic resonance of uniform magnetic films. We extend previous studies by fully considering not only the field-like contribution from the spin-orbit torque, but also the recently derived Slonczewski-like spin-orbit torque. We show that the latter interaction affects both the domain wall velocity and the Walker breakdown threshold non-trivially, which suggests that it should be accounted in experimental data analysis. We find that the presence of multiple spin-orbit torques may render the Walker breakdown to be universal in the sense that the threshold is completely independent on the material-dependent Gilbert damping, non-adiabaticity, and the chirality of the domain wall. We also find that domain wall motion against the current injection is sustained in the presence of multiple spin-orbit torques and that the wall profile will determine the qualitative influence of these different types of torques (e.g. field-like and Slonczewski-like). In addition, we consider a uniform ferromagnetic layer under a current bias, and find that the resonance frequency becomes asymmetric against the current direction in the presence of Slonczewski-like spin-orbit coupling. This is in contrast with those cases where such an interaction is absent, where the frequency is found to be symmetric with respect to the current direction. This finding shows that spin-orbit interactions may offer additional control over pumped and absorbed energy in a ferromagnetic resonance setup by manipulating the injected current direction.
description: 12 pages including 7 figures
Nonholonomic ricci flows and Finsler-Lagrange f(R,F,L)-modified gravity and dark matter effects
Creators: name: Alexiou, Maria
name: Gheorghiu, Tamara
name: Stavrinos, Panayiotis C.
name: Vacaru, Olivia
name: Vacaru, Sergiu I.
Publisher: name: Singapur : World Scientific Publishing Co. Pte. Ltd.
Year: 2018
Subjects: subject: Finsler-lagrange geometry and modified gravity
subject: Locally anisotropic finsler cosmolgy
subject: Nonholonomic ricci flows
subject: Astrophysics
subject: Gravitation
subject: Lagrange multipliers
subject: Exact solution
subject: General Relativity
subject: Geometric flows
subject: Lagrange
subject: Nonholonomics
subject: Ricci flows
subject: Self-similar
subject: Relativity
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We review the theory of geometric flows on nonholonomic manifolds and tangent bundles and self-similar configurations resulting in generalized Ricci solitons and Einstein-Finsler equations. There are provided new classes of exact solutions on Finsler-Lagrange f(R,F,L)-modifications of general relativity and discussed possible implications in acceleration cosmology.
Neue Anwendungsmethoden der Durchflusszytometrie in der Biotechnologie
Creators: name: Burzlaff, Peter Arne
Publisher: name: Hannover : Universität
Year: 2005
Subjects: subject: Flow cytometry
subject: FACS
subject: in vitro toxicity
subject: microcarrier
subject: DNA adsorption
subject: kinetic measurements
subject: synchronous S. cerevisiae
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: [no abstract]
Probability that a given element of a group is a commutator of any two randomly chosen group elements
Creators: name: Nath, Rajat K.
name: Yadav, Manoj K.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20D60, 20P05

description: We study the probability of a given element, in the commutator subgroup of a group, to be equal to a commutator of two randomly chosen group elements, and compute explicit formulas for calculating this probability for some interesting classes of groups having only two different conjugacy class sizes. We re-prove the fact that if $G$ is a finite group such that the set of its conjugacy class sizes is $\{1, p\}$, where $p$ is a prime integer, then $G$ is isoclinic (in the sense of P. Hall) to an extraspecial $p$-group.
description: 14 pages
Inklusiv. Architektur und Kunst
Creators: name: Buchert, Margitta
Publisher: name: Berlin : Jovis
Year: 2006
Subjects: subject: architecture and art
subject: interdisciplinarity
subject: inclusion
subject: complexity
subject: artistic forms of knowledge
subject: Architektur und Kunst
subject: Interdisziplinarität
subject: Inklusion
subject: Komplexität
subject: Künstlerische Wissensformen
subject: Konferenzschrift
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::720 | Architektur

description: Mit ihrem einleitenden Artikel für das Buch `Inklusiv. Architektur und Kunst´ richtet Margitta Buchert ihre Aufmerksamkeit auf dichte und zugleich bewegliche Relationsgefüge der Disziplinen. Leitenden Fragestellungen werden mit diesem Einstieg aufgeworfen: Wie würden sich verbindende Strukturen zwischen Kunst und Architektur formieren? Wäre der Austausch zuallererst auf das übergreifende Ziel ausgerichtet, Qualitäten von Wahrnehmung und Erfahrung im Lebensumfeld des Menschen zu bereichern? Welche Relationen, bei gleichzeitiger Verschiedenheit der Komponenten, würden aufgespannt? Zeigten sich Wechselwirkungen oder würden eher ordnende Kräfte aufgerufen zwischen den Polen? Mit der Fokussierung des inklusiven Blickwinkels werden Möglichkeitsräume skizziert, um künstlerische und kreativ-wissenschaftliche Wissensformen zu ergründen sowie neue Forschungsstrategien zu entdecken, die der Komplexität des 21. Jahrhunderts und den Disziplinen zwischen rationaler und intuitiver Aufmerksamkeit entsprechen.
description: In her opening article for the book ‚Inclusive. Architecture and Art‘, Margitta Buchert directs her attention to the dense and simultaneously flexible correlations of the disciplines. Guiding questions are raised with this introduction: How are the connecting structures between art and architecture formed? Would the exchange be directed first and foremost towards the overarching goal of enriching qualities of perception and experience in the human living environment? Which relations, with simultaneous diversity of the components, would be established? Would there arise interactions or would rather ordering forces be mobilized between the poles? With the focus on the inclusive perspective, spaces of possibility are outlined to explore artistic and creative-scientific forms of knowledge as well as to discover new research strategies that correspond to the complexity of the 21st century and the disciplines between rational and intuitive attention.
Does "model-free" forecasting really outperform the "true" model? A reply to Perretti et al
Creators: name: Hartig, Florian
name: Dormann, Carsten F.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Chaotic Dynamics (nlin.CD)
subject: Applications (stat.AP)
subject: FOS: Biological sciences
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Estimating population models from uncertain observations is an important problem in ecology. Perretti et al. observed that standard Bayesian state-space solutions to this problem may provide biased parameter estimates when the underlying dynamics are chaotic. Consequently, forecasts based on these estimates showed poor predictive accuracy compared to simple "model-free" methods, which lead Perretti et al. to conclude that "Model-free forecasting outperforms the correct mechanistic model for simulated and experimental data". However, a simple modification of the statistical methods also suffices to remove the bias and reverse their results.
description: Letter submitted to PNAS, with additional supplementary information. R code included in the latex source
Structure of solar coronal loops: from miniature to large-scale
Creators: name: Peter, H.
name: Bingert, S.
name: Klimchuk, J. A.
name: de Forest, C.
name: Cirtain, J. W.
name: Golub, L.
name: Winebarger, A. R.
name: Kobayashi, K.
name: Korreck, K. E.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We will use new data from the High-resolution Coronal Imager (Hi-C) with unprecedented spatial resolution of the solar corona to investigate the structure of coronal loops down to 0.2 arcsec. During a rocket flight Hi-C provided images of the solar corona in a wavelength band around 193 A that is dominated by emission from Fe XII showing plasma at temperatures around 1.5 MK. We analyze part of the Hi-C field-of-view to study the smallest coronal loops observed so far and search for the a possible sub-structuring of larger loops. We find tiny 1.5 MK loop-like structures that we interpret as miniature coronal loops. These have length of the coronal segment above the chromosphere of only about 1 Mm and a thickness of less than 200 km. They could be interpreted as the coronal signature of small flux tubes breaking through the photosphere with a footpoint distance corresponding to the diameter of a cell of granulation. We find loops that are longer than 50 Mm to have a diameter of about 2 arcsec or 1.5 Mm, consistent with previous observations. However, Hi-C really resolves these loops with some 20 pixels across the loop. Even at this greatly improved spatial resolution the large loops seem to have no visible sub-structure. Instead they show a smooth variation in cross-section. The fact that the large coronal loops do not show a sub-structure at the spatial scale of 0.1 arcsec per pixel implies that either the densities and temperatures are smoothly varying across these loops or poses an upper limit on the diameter of strands the loops might be composed of. We estimate that strands that compose the 2 arcsec thick loop would have to be thinner than 15 km. The miniature loops we find for the first time pose a challenge to be properly understood in terms of modeling.
description: Accepted for publication in A&A (Jun 19, 2013), 11 pages, 10 figures
Enhanced Deterministic Performance of Panels Using Stochastic Variations of Geometric and Material Parameters
Creators: name: Van Den Broek, Sander
name: Minera, Sergio
name: Pirrera, Alberto
name: Weaver, Paul M.
name: Jansen, Eelco
name: Rolfes, Raimund
Publisher: name: Reston, VA : American Institute of Aeronautics and Astronautics
Year: 2020
Subjects: subject: Random field
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik

description: The effect of stochastic variation in material and geometric properties on structural performance is important for robust design. Knowledge of such effects can be acquired by applying variation patterns to a structure using random fields through a Monte Carlo analysis. The output is postprocessed to show the correlation pattern between the stochastic variation of a structural property and a chosen mechanical response measure. The resulting patterns are used to identify areas most susceptible to variations, as well as areas which have the most potential to increase structural performance by varying the material parameter or geometry. By using these maps of local sensitivity to variations with respect to the structural response it is possible to redistribute material properties or geometry to promote certain behavior. This is demonstrated on a flat plate and curved panel, by either varying the Young's modulus, or thickness of the structure to increase the linear buckling load. In both of these variations the average property is set to remain the same as the original structure. Applying the redistribution increased the linear buckling load by up to 29%