cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Einstein Yang-Mills Amplitudes from Intersections of Twisted Forms
Creators: name: Mazloumi, Pouria
name: Stieberger, Stephan
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Algebraic Geometry (math.AG)
subject: Number Theory (math.NT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We present a geometric derivation of all-multiplicity (single-trace) tree-level Einstein Yang-Mills (EYM) amplitudes ${\cal A}(n;r)$ involving $n$ gluons and $r$ gravitons by a bilinear of two twisted differential forms on the moduli space of Riemann spheres with $m\!:=\!n\!+\!r$ punctures. The differential forms are gained by studying the underlying superstring disk amplitude and proposing an embedding of the disk onto the sphere. This map can be interpreted as a geometrical map from the open superstring to a heterotic or ambitwistor string structure. Then, the twisted intersection number of the two $m$-forms, which is obtained by integrating over the moduli space of Riemann sphere with $m$ punctures, reproduces in the infinite inverse string tension limit $α'\!\rightarrow\! \infty$ the corresponding CHY formula of the EYM amplitude. To bolster our findings we study the disk amplitude of open and closed strings using the Grassmann description of the underlying superstring amplitude, map it to a closed string amplitude and consider the $α'\!\rightarrow\! \infty$ limit. Finally, we present an all-multiplicity decomposition formula of any EYM amplitude ${\cal A}(n;r)$ as linear combination over $(m\!-\!3)!$ pure $m$ gluon subamplitudes.
description: 40 pages, LaTeX; v2: improved version, typos removed and subsection 6.3 added
Sonnenfleckenzeichnung Nr. 283.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 15.11.1973, erstellt von Sergio Cortesi, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1973

description: Bleistiftzeichnung mit Tinte und Farbstift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf dem Vordruck der Eidgenössischen Sternwarte Zürich. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert
Skyrmion pinning energetics in thin film systems
Creators: name: Gruber, Raphael
name: Zázvorka, Jakub
name: Brems, Maarten A.
name: Rodrigues, Davi R.
name: Dohi, Takaaki
name: Kerber, Nico
name: Seng, Boris
name: Everschor-Sitte, Karin
name: Virnau, Peter
name: Kläui, Mathias
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A key issue for skyrmion dynamics and devices are pinning effects present in real systems. While posing a challenge for the realization of conventional skyrmionics devices, exploiting pinning effects can enable non-conventional computing approaches if the details of the pinning in real samples are quantified and understood. We demonstrate that using thermal skyrmion dynamics, we can characterize the pinning of a sample and we ascertain the spatially resolved energy landscape. To understand the mechanism of the pinning, we probe the strong skyrmion size and shape dependence of the pinning. Magnetic microscopy imaging demonstrates that in contrast to findings in previous investigations, for large skyrmions the pinning originates at the skyrmion boundary and not at its core. The boundary pinning is strongly influenced by the very complex pinning energy landscape that goes beyond the conventional rigid quasi-particle description. This gives rise to complex skyrmion shape distortions and allows for dynamic switching of pinning sites and flexible tuning of the pinning.
Heterogeneous catalytic decomposition of nitrous oxide
Creators: name: Abildstrøm, Jacob Oskar
name: Fehrmann, Rasmus
name: Risager, Anders
name: Reddy Putluru, Siva Sankar
Publisher: name: Grøn Dyst 2010
Year: 2010

description: Nitrous oxide (N2O) is recognized as very harmful in destroying the stratospheric ozone layer. With its long lifetime, it is also a major atmospheric pollutant due to its much higher global warming potential than CO2. With the increase in concern for environmental protection, efforts have been made to decompose N2O into only N2 and O2 before it is released into the atmosphere from chemical plants. Different catalysts have been prepared and analysed for their activity in this decomposition of N2O. The goal of this project is to find suitable catalysts that are active at relatively low temperature for practical application.
Sonnenfleckenzeichnung Nr. 13173.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 21.11.1935, erstellt von William Brunner, Assistent
Creators: name: Eidgenössische Sternwarte in Zürich (ETH Zürich bzw. vor 1911 Polytechnikum)
Publisher: name: [s.n.]
Year: 1935

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich, später ergänzt mit einer kleinen Tabelle für die Auszählung der Flecken nach ihrer Verteilung auf Abschnitte der sichtbaren Sonnenhälfte, nach Quadrant bzw. nach Halbkugel (N, S, W, E). Instrument: Kern-Merz-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Zugeordnete numerische Werte wurden in einer separat geführten, chronologischen Tabelle erfasst. Unter Umständen sind tabellarisch notierte Werte, die für Protuberanzen mit rot geschrieben wurden, direkt auf der Fleckenzeichnung vermerkt
description: ETH-Bibliothek
Cluster assembly and the origin of mass segregation in the STARFORGE simulations
Creators: name: Guszejnov, Dávid
name: Markey, Carleen
name: Offner, Stella S. R.
name: Grudić, Michael Y.
name: Faucher-Giguère, Claude-André
name: Rosen, Anna L.
name: Hopkins, Philip F.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Stars form in dense, clustered environments, where feedback from newly formed stars eventually ejects the gas, terminating star formation and leaving behind one or more star clusters. Using the STARFORGE simulations, it is possible to simulate this process in its entirety within a molecular cloud, while explicitly evolving the gas radiation and magnetic fields and following the formation of individual, low-mass stars. We find that individual star-formation sites merge to form ever larger structures, while still accreting gas. Thus clusters are assembled through a series of mergers. During the cluster assembly process a small fraction of stars are ejected from their clusters; we find no significant difference between the mass distribution of the ejected stellar population and that of stars inside clusters. The star-formation sites that are the building blocks of clusters start out mass segregated with one or a few massive stars at their center. As they merge the newly formed clusters maintain this feature, causing them to have mass-segregated substructures without themselves being centrally condensed. The merged clusters relax to a centrally condensed mass segregated configuration through dynamical interactions between their members, but this process does not finish before feedback expels the remaining gas from the cluster. In the simulated runs the gas-free clusters then become unbound and break up. We find that turbulent driving and a periodic cloud geometry can significantly reduce clustering and prevent gas expulsion. Meanwhile, the initial surface density and level of turbulence have little qualitative effect on cluster evolution, despite the significantly different star formation histories.
description: 18 pages, 15 figures, submitted to MNRAS
Heat Driven Cooling
Creators: name: Amondsen, Jakob Berg
name: Stubkier, Simon
name: Elmegaard, Brian
name: Furbo, Simon
Publisher: name: Grøn Dyst 2010
Year: 2010

description: Cooling and AC are some of the most energy intensive thermal process, Solar driven cooling has the potential to lower the energy used for residential AC since the production and the need for cooling is synchronized. The purpose of this project is therefore to investigate the possibility of construction a heat driven cooling cycle, with evaquated tube solar collectors as the heat source in combination with an absorption cycle.
Non-classicality criteria for N-dimensional optical fields detected by quadratic detectors
Creators: name: Perina, Jan
name: Pavlicek, Pavel
name: Michalek, Vaclav
name: Machulka, Radek
name: Haderka, Ondrej
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Non-classicality criteria for general N-dimensional optical fields are derived. They involve intensity moments, the probabilities of photon-number distributions or combinations of both. The Hillery criteria for the sums of the probabilities of even or odd photon numbers are generalized to N-dimensional fields. As an example, the derived non-classicality criteria are applied to an experimental 3-mode optical field containing two types of photon-pair contributions. The accompanying non-classicality depths are used to mutually compare their performance.
description: 10 pages, 7 figures
Grønne mål
Creators: name: Glorgaard, Christian
name: Aslam, Hasnain
name: Salinas, Iben
name: Byrnak, Jens
name: Fogh, Klaus
name: Vogel, Linus
name: Rasmussen, Michael Bøje
name: Fournais, Mik
name: Pedersen, Vicki
name: Lassen, Carl Christian
Publisher: name: Grøn Dyst 2010
Year: 2010

description: Hvad en virksomhed skal overveje før de starter grøntprojekt. Give nogle generalle råd for hvad en virksomhed skal gøre for at være grøn.
Position-dependent memory kernel in generalized Langevin equations: theory and numerical estimation
Creators: name: Vroylandt, Hadrien
name: Monmarché, Pierre
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Generalized Langevin equations with non-linear forces and position-dependent linear friction memory kernels, such as commonly used to describe the effective dynamics of coarse-grained variables in molecular dynamics, are rigorously derived within the Mori-Zwanzig formalism. A fluctuation-dissipation theorem relating the properties of the noise to the memory kernel is shown. The derivation also yields Volterra-type equations for the kernel, which can be used for a numerical parametrization of the model from all-atom simulations.
description: 24 pages, 4 figures
Sonnenfleckenzeichnung Nr. 13157.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 04.11.1935, erstellt von William Otto Brunner
Creators: name: Eidgenössische Sternwarte in Zürich (ETH Zürich bzw. vor 1911 Polytechnikum)
Publisher: name: [s.n.]
Year: 1935

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich, später ergänzt mit einer kleinen Tabelle für die Auszählung der Flecken nach ihrer Verteilung auf Abschnitte der sichtbaren Sonnenhälfte, nach Quadrant bzw. nach Halbkugel (N, S, W, E). Instrument: Kern-Merz-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Zugeordnete numerische Werte wurden in einer separat geführten, chronologischen Tabelle erfasst. Unter Umständen sind tabellarisch notierte Werte, die für Protuberanzen mit rot geschrieben wurden, direkt auf der Fleckenzeichnung vermerkt
description: ETH-Bibliothek
Sonnenfleckenzeichnung Nr. 13153.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 31.10.1935, erstellt von William Brunner, Assistent und von William Otto Brunner
Creators: name: Eidgenössische Sternwarte in Zürich (ETH Zürich bzw. vor 1911 Polytechnikum)
Publisher: name: [s.n.]
Year: 1935

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich, später ergänzt mit einer kleinen Tabelle für die Auszählung der Flecken nach ihrer Verteilung auf Abschnitte der sichtbaren Sonnenhälfte, nach Quadrant bzw. nach Halbkugel (N, S, W, E). Instrument: Kern-Merz-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Zugeordnete numerische Werte wurden in einer separat geführten, chronologischen Tabelle erfasst. Unter Umständen sind tabellarisch notierte Werte, die für Protuberanzen mit rot geschrieben wurden, direkt auf der Fleckenzeichnung vermerkt
description: ETH-Bibliothek
Sonnenfleckenzeichnung unnummeriert, einen Zürcher Lückentag ergänzend.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 29.10.1935, erstellt von James Peter Rowland am Stonyhurst Observatory in Lancashire
Creators: name: Sternwarte Stonyhurst Observatory am Stonyhurst College in Lancashire
Publisher: name: [s.n.]
Year: 1935

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung am Stonyhurst Observatory in Lancashire, später ergänzt mit einer kleinen Tabelle für die Auszählung der Flecken nach ihrer Verteilung auf Abschnitte der sichtbaren Sonnenhälfte, nach Quadrant bzw. nach Halbkugel (N, S, W, E). Instrument: unbekannt.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen
description: ETH-Bibliothek
Sonnenfleckenzeichnung Nr. 13193, einen Zürcher Lückentag ergänzend.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 14.12.1935, erstellt von Friedrich Buser in der privaten Beobachtungsstation im Prätschli in Arosa
Creators: name: Buser, Friedrich
Publisher: name: [s.n.]
Year: 1935

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der privaten Beobachtungsstation Prätschli in Arosa, später ergänzt mit einer kleinen Tabelle für die Auszählung der Flecken nach ihrer Verteilung auf Abschnitte der sichtbaren Sonnenhälfte, nach Quadrant bzw. nach Halbkugel (N, S, W, E). Instrument: 15-cm-Zeiss-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Unter Umständen sind tabellarisch notierte Werte, die für Protuberanzen mit rot geschrieben wurden, direkt auf der Fleckenzeichnung vermerkt
description: ETH-Bibliothek
Lepton collider probes for Majorana neutrino effective interactions
Creators: name: Zapata, Gabriel
name: Urruzola, Tomás
name: Sampayo, Oscar A.
name: Duarte, Lucía
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The extension of the standard model with new high-scale weakly coupled physics involving right-handed neutrinos in an effective field theory framework (SMNEFT) allows for a systematic study of heavy neutrinos phenomenology in current and future experiments. We exploit the outstanding angular resolution in future lepton colliders to study the sensitivity of forward-backward asymmetries to discover the possible single production of heavy Majorana neutrinos via $e^{+}e^{-} \to N ν$, followed by a purely leptonic decay $N \to μ^{-} μ^{+} ν$ or a semi-leptonic decay $N \to μ^{-} \mathrm{j} \mathrm{j} $, for masses $m_N > 50$ GeV. In this regime, we consider the $N$ production and decays to be dominated by scalar and vectorial four-fermion $d=6$ single $N_R$ operators. This is an alternative analysis to searches using displaced vertices and fat jets, in a higher mass regime, where the $N$ is short-lived but can be found by the angular distribution of its decay products. We find that a forward-backward asymmetry between the final muons in the pure leptonic decay mode provides a sensitivity up to 12$σ$ for $m_N=100$ GeV, for effective couplings $α=0.2$ and new physics scale $Λ=1$ TeV. In the case of the semi-leptonic decay, we can compare the final muon and higher $p_T$ jet flight directions, again finding up to 12$σ$ sensitivity to the effective signals.
description: 25 pages, 12 figures, 3 tables. v3 References updated, new organization and plots
Radiation Effects from ISM and Cosmic Ray Particle Impacts on Relativistic Spacecraft
Creators: name: Lubin, Philip
name: Cohen, Alexander N.
name: Erlikhman, Jacob
Publisher: name: arXiv
Year: 2022
Subjects: subject: Space Physics (physics.space-ph)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Relativistic spacecraft, like those proposed by the NASA Starlight program and the Breakthrough Starshot Initiative, will have to survive radiation production that is unique when compared to that experienced by conventional spacecraft. In a relativistic interstellar spacecraft's reference frame, the interstellar medium (ISM) will look like a nearly mono-energetic beam of charged particles which impinges upon the leading edge of the spacecraft. Upon impact, ISM protons and electrons will travel characteristic lengths through the spacecraft shield and come to a stop via electronic and nuclear stopping mechanisms. As a result, bremsstrahlung photons will be produced within the spacecraft shield. In this work, we discuss the interstellar environment and its implications for radiation damage on relativistic spacecraft. We also explore expected radiation doses in terms of on-board device radiation tolerance.
description: Submitted to The Astrophysical Journal, accepted
Astrophysical Parameters from Gaia DR2, 2MASS & AllWISE
Creators: name: Fouesneau, M.
name: Andrae, R.
name: Dharmawardena, T.
name: Rybizki, J.
name: Bailer-Jones, C. A. L.
name: Demleitner, M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Stellar physical and dynamical properties are essential knowledge to understanding the structure, formation, and evolution of our Galaxy. We produced an all-sky uniformly derived catalog of stellar astrophysical parameters (APs; age, mass, temperature, bolometric luminosity, distance, dust extinction) to give insight into the physical properties of Milky-Way stars. Exploiting the power of multi-wavelength and multi-survey observations from Gaia DR2 parallaxes and integrated photometry along with 2MASS and AllWISE photometry, we introduce an all-sky uniformly derived catalog of stellar astrophysical parameters, including dust extinction (A0) and average grain size (R0) along the line of sight, for 123,097,070 stars. In contrast with previous works, we do not use a Galactic model as prior in our analysis. We validate our results against other literature (e.g., benchmark stars, interferometry, Bayestar, StarHorse). The limited optical information in the Gaia photometric bands or the lack of ultraviolet or spectroscopic information renders the chemistry inference prior dominated. We demonstrate that Gaia parallaxes bring sufficient leverage to explore the detailed structures of the interstellar medium in our Milky Way. In Gaia DR3, we will obtain the dispersed optical light information to break through some limitations of this analysis, allowing us to infer stellar chemistry in particular. Gaia promises us data to construct the most detailed view of the chemo-dynamics of field star populations in our Galaxy. Our catalog is available from GAVO at http://dc.g-vo.org/tableinfo/gdr2ap.main (soon Gaia Archive and VizieR)
description: Accepted for publication in A&A. Our catalog is available from GAVO at http://dc.g-vo.org/tableinfo/gdr2ap.main (soon Gaia Archive and VizieR)
Observational constraints on disc sizes in protoplanetary discs in multiple systems in the Taurus region. II. Gas disc sizes
Creators: name: Rota, A. A.
name: Manara, C. F.
name: Miotello, A.
name: Lodato, G.
name: Facchini, S.
name: Koutoulaki, M.
name: Herczeg, G.
name: Long, F.
name: Tazzari, M.
name: Cabrit, S.
name: Harsono, D.
name: Menard, F.
name: Pinilla, P.
name: van der Plas, G.
name: Ragusa, E.
name: Yen, H. -W.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The formation of multiple stellar systems is a natural by-product of the star-formation process, and its impact on the properties of protoplanetary discs and on the formation of planets is still to be fully understood. To date, no detailed uniform study of the gas emission from a sample of protoplanetary discs around multiple stellar systems has been performed. Here we analyse new ALMA observations at a $\sim$21 au resolution of the molecular CO gas emission targeting discs in eight multiple stellar systems in the Taurus star-forming regions. $^{12}$CO gas emission is detected around all primaries and in seven companions. With these data, we estimate the inclination and the position angle for all primary discs and for five secondary or tertiary discs, and measure the gas disc radii of these objects with a cumulative flux technique on the spatially resolved zeroth moment images. When considering the radius including 95\% of the flux as a metric, the estimated gas disc size in multiple stellar systems is found to be on average $\sim 4.2$ times larger than the dust disc size. This ratio is higher than what was recently found in a population of more isolated and single systems. On the contrary, when considering the radius including 68\% of the flux, no difference between multiple and single discs is found in the distribution of ratios. This discrepancy is due to the sharp truncation of the outer dusty disc observed in multiple stellar systems. The measured gas disc sizes are consistent with tidal truncation models in multiple stellar systems assuming eccentricities of $\sim0.15$-$0.5$, as expected in typical binary systems.
description: 25 pages, 29 figures, 9 tables. Accepted for publication in A&A
Rigid rotation in GR and a generalization of the virial theorem
Creators: name: Astesiano, Davide
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In this work we study the properties of rigidly rotating neutral dust solutions in general relativity. This class of solutions gained relevance recently due to applications to the dynamics of spiral galaxies. We show that this class could be interpreted as a rigid body in general relativity and we analyze the different properties respect to the rigidly rotating disk in special relativity: for example, the general relativistic counterpart shows no Doppler effect for a light signal emitted and received from any two points at rest respect to the rigid body. This effect can be important to test the validity of the assumed model for our galaxy. In the second part we approach the problem from a low energy expansion perspective and we write down a generalization of the virial theorem for stationary spacetimes. The non-Newtonian contributions can lead to a re-weighting of dark matter in galaxies.
description: 17 pages, 0 figures
Status of the νμ charged-current coherent pion production in the NOvA near detector
Creators: name: Chatura Kuruppu
Publisher: name: Zenodo
Year: 2022

description: Charged Current (CC) coherent neutrino-nucleus pion production is characterized by little momentum transferred to the nucleus, which is left in its ground state. In spite of the relatively large uncertainties on the production cross-section, coherent production of mesons by neutrinos represents an important process, as it can shed light on the structure of the weak current and can also constitute a potential source of background for modern neutrino oscillation experiments and searches for Beyond Standard Model (BSM) physics. We will present the status of a new measurement of CC coherent pion production in the NOvA near detector at the Fermi National laboratory (Fermilab). The analysis is based on the use of both particle identification and kinematic selection criteria based on Convolutional Neural Networks (CNN) to achieve a selection purity of 60%. Given the energy range 1-5 GeV accessible with the available NOvA exposure in the NuMI beam, the results will also be relevant for future neutrino experiments like the Deep Underground Neutrino Experiment (DUNE).
Fabrication of biopolymer cantilevers
Creators: name: Feidenhans'l, Nikolaj
name: Fisker-Bødker, Nis
name: Keller, Stephan
Publisher: name: Grøn Dyst 2010
Year: 2010

description: With our novel production method biopolymer micro cantilevers can be manufactured cheap and easily, rendering the measurement of degradability a matter of a few days. Our micro cantilevers are made of the PLLA (poly-l-lactide), measure 100 x 500 x 10 µm (width, length, height) but are positioned on a supporting body chip to allow handling with tweezers. As biopolymers are to fragile to process with standard silicon techniques we developed a fabrication method using nanoimprint lithography, where the chip structure is defined by pressing a stamp into the biopolymer layer. This has previously only been done with ordinary plastics. The degradation is then evaluated by placing the chip in a solution and measuring its resonance frequency, which depend on the cantilever mass. As proof of concept this measurement was also performed.
ИЧКИ ИШЛАР ОРГАНЛАРИ ХОДИМЛАРИ БИЛАН ТАРБИЯВИЙ-ПСИХОЛОГИК ИШЛАРНИ АМАЛГА ОШИРИШ – ДОЛАЗРБ ВАЗИФА
Creators: name: Мирзабаев, Аскар
Publisher: name: Zenodo
Year: 2025

description: Бугунги кунда мамлакатимизда олиб борилаётган ислоҳотлар самараси авваламбор юксак маънавиятли, мустақил фикрлайдиган, Ватанимиз тақдири ва истиқболи учун масъулиятни ўз зиммасига олишга қодир ёш кадрлар сафини кенгайтиришга бевосита боғлиқ .
Sonnenfleckenzeichnung Nr. 16185.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 22.12.1945, erstellt von Bernhard Beck
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1945

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich. Instrument: Kern-Merz-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Unter Umständen sind Angaben zu Protuberanzen vermerkt
Vertagopus westerlundi Reuter 1898
Creators: name: Potapov, Mikhail
name: Gulgenova, Ayuna
name: Babykina, Marina
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Entognatha
Collembola
Isotomidae
Vertagopus
Vertagopus westerlundi

description: Vertagopus westerlundi (Reuter, 1898)
Fig. 24
Material examined. Buryat Republic: Dzerginsky Nature Reserve (N Buryatia), vicinities of Reserve station 81 km (upper flow of Barguzin River), at ridge of Balan-Tamur Range, northern slope, ca. 1500 m alt., 55.36062°N, 111.53727°E, thick lichens on talus, 09.ix.2012, coll. M.P. and A.G.
Distribution and ecology. It is distributed in Western Palearctic with only a few references from the Asiatic part (Martynova 1979, Babenko 2007). It was singly collected in the northern part of the Buryat Republic. This record is new for the area under study and is also the most eastern one for the species.
description: Published as part of Potapov, Mikhail, Gulgenova, Ayuna & Babykina, Marina, 2016, Isotomidae (Collembola) of Buryat Republic. III. The genera Vertagopus and Agrenia, with a note on ' Claw index', pp. 112-128 in Zootaxa 4088 (1) on page 121, DOI: 10.11646/zootaxa.4088.1.5, http://zenodo.org/record/269176
Hazy blue worlds: A holistic aerosol model for Uranus and Neptune, including Dark Spots
Creators: name: Irwin, Patrick G. J.
name: Teanby, Nicholas A.
name: Fletcher, Leigh N.
name: Toledo, Daniel
name: Orton, Glenn S.
name: Wong, Michael H.
name: Roman, Michael T.
name: Perez-Hoyos, Santiago
name: James, Arjuna
name: Dobinson, Jack
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present a reanalysis (using the Minnaert limb-darkening approximation) of visible/near-infrared (0.3 - 2.5 micron) observations of Uranus and Neptune made by several instruments. We find a common model of the vertical aerosol distribution that is consistent with the observed reflectivity spectra of both planets, consisting of: 1) a deep aerosol layer with a base pressure > 5-7 bar, assumed to be composed of a mixture of H2S ice and photochemical haze; 2) a layer of photochemical haze/ice, coincident with a layer of high static stability at the methane condensation level at 1-2 bar; and 3) an extended layer of photochemical haze, likely mostly of the same composition as the 1-2-bar layer, extending from this level up through to the stratosphere, where the photochemical haze particles are thought to be produced. For Neptune, we find that we also need to add a thin layer of micron-sized methane ice particles at ~0.2 bar to explain the enhanced reflection at longer methane-absorbing wavelengths. We suggest that methane condensing onto the haze particles at the base of the 1-2-bar aerosol layer forms ice/haze particles that grow very quickly to large size and immediately 'snow out' (as predicted by Carlson et al. 1988), re-evaporating at deeper levels to release their core haze particles to act as condensation nuclei for H2S ice formation. In addition, we find that the spectral characteristics of 'dark spots', such as the Voyager-2/ISS Great Dark Spot and the HST/WFC3 NDS-2018, are well modelled by a darkening or possibly clearing of the deep aerosol layer only.
description: 58 pages, 23 figures, 4 tables
4 Fotografien
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1925
Subjects: Cvetaeva, Marina1892-1941

description: 1 Portraitaufnahme von Marina Cvetaeva, vermutlich 1925 in Paris aufgenommen; 2 Gruppenphotos u.a. mit Marina Cvetaeva, eines davon 1925 in der Tschechoslowakei aufgenommen; 1 Foto ihres Grabes mit schlichtem Holzkreuz in Jelabuga
description: Russisch
description: Digitalisierung=Digitization=Numérisation TIFF 01.03.2020
Sonnenfleckenzeichnung Nr. 5846.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 18.07.1958, erstellt von Sergio Cortesi, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 1958

description: Bleistiftzeichnung mit Tinte und Farbstift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf dem Vordruck der Eidgenössischen Sternwarte Zürich. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert
description: ETH-Bibliothek
Estimation and Evaluation of the Effects of Future Implementation of GPS-based Bus Priority at Traffic Signals in Copenhagen
Creators: name: Morellato, Camilla
name: Larsen, Allan
name: Zabic, Martina
name: Sdun, Mathias
Publisher: name: Grøn Dyst 2010
Year: 2010

description: According to the Copenhagen Climate Plan, 10% of the CO2 reductions the Municipality of Copenhagen plans to reach by 2015 will be achieved through measures in the transport sector. One of the ways to reach the target is to enhance public transport, so that its attractiveness will turn some car drivers into public transport users. The idea of the project is to use GPS technology to provide buses with priority at traffic signals, which will give buses an observable advantage compared to cars and, improving travel times and punctuality, will generate a good potential for encouraging the modal shift.
Sonnenfleckenzeichnung Nr. 98.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 20.04.1973, erstellt von Araldo Pittini, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1973

description: Bleistiftzeichnung mit Tinte und Farbstift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf dem Vordruck der Eidgenössischen Sternwarte Zürich. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert
Environmental Management in event planning - a Life Cycle approach, the Roskilde Festival case
Creators: name: Bonou, Alexandra
name: Olsen, Stig Irving
Publisher: name: Grøn Dyst 2010
Year: 2010

description: This LCA-based study estimates the environmental impacts of the activities happening on the Roskilde Festival’s site during its 8 day length. The purpose is to prioritize policies and mitigation actions. The system boundaries include: audience transportation; accommodation, food and water consumption; electricity and fuel consumption; waste management. The impact assessment was carried out according to the EDIP method. The results revealed that main contributors to all impact categories are the transportation of festival goers and the food consumption. Subsequently action to reduce the impacts of the festival is best focused on influencing behavioral change rather than investing in technical solutions.
Agrenia Borner
Creators: name: Potapov, Mikhail
name: Gulgenova, Ayuna
name: Babykina, Marina
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Entognatha
Collembola
Isotomidae
Agrenia

description: Genus Agrenia Börner
The genus is well defined and was reviewed by Fjellberg (1986) and Fjellberg & Bernard (2009). In the course of our study of neustonic fauna two species were collected. One of them, supposedly a new species, belonged to ' bidenticulata ' group and differed from the widely distributed arctic species A. bidenticulata by longer claws. To clarify the independence of the Buryatian form we have studied other populations of A. bidenticulata from Russian Arctic and Siberian mountains.
description: Published as part of Potapov, Mikhail, Gulgenova, Ayuna & Babykina, Marina, 2016, Isotomidae (Collembola) of Buryat Republic. III. The genera Vertagopus and Agrenia, with a note on ' Claw index', pp. 112-128 in Zootaxa 4088 (1) on page 123, DOI: 10.11646/zootaxa.4088.1.5, http://zenodo.org/record/269176
Time and band limiting operator and Bethe ansatz
Creators: name: Bernard, P. -A.
name: Crampe, N.
name: Vinet, L.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The time and band limiting operator is introduced to optimize the reconstruction of a signal from only a partial part of its spectrum. In the discrete case, this operator commutes with the so-called algebraic Heun operator which appears in the context of the quantum integrable systems. The construction of both operators and the proof of their commutativity is recalled. A direct connection between their spectra is obtained. Then, the Bethe ansatz, a well-known method to diagonalize integrable quantum Hamiltonians, is used to diagonalize the Heun operator and to obtain insights on the spectrum of the time and band limiting operator.
Weighing the Galactic disk using phase-space spirals IV. Tests on a three-dimensional galaxy simulation
Creators: name: Widmark, Axel
name: Hunt, Jason A. S.
name: Laporte, Chervin F. P.
name: Monari, Giacomo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In this fourth article on weighing the Galactic disk using the shape of the phase-space spiral, we have tested our method on a billion particle three-dimensional N-body simulation, comprised of a Milky Way like host galaxy and a merging dwarf satellite. The main purpose of this work was to test the validity of our model's fundamental assumptions that the spiral inhabits a locally static and vertically separable gravitational potential. These assumptions might be compromised in the complex kinematic system of a disturbed three-dimensional disk galaxy; in fact, the statistical uncertainty and any potential biases related to these assumptions are expected to be amplified for this simulation, which differs from the Milky Way in that it is more strongly perturbed and has a phase-space spiral that inhabits higher vertical energies. We constructed 44 separate data samples from different spatial locations in the simulated host galaxy. Our method produced accurate results for the vertical gravitational potential of these 44 data samples, with an unbiased distribution of errors with a standard deviation of 7 %. We also tested our method under severe and unknown spatially dependent selection effects, also with robust results; this sets it apart from traditional dynamical mass measurements that are based on the assumption of a steady state and which are highly sensitive to unknown or poorly modelled incompleteness. Hence, we will be able to make localised mass measurements of distant regions in the Milky Way disk, which would otherwise be compromised by complex and poorly understood selection effects.
description: 18 pages, 19 figures, accepted for publication in A&A
title: Segmental testicular infarction in a patient with COVID-19 infection
Creators: name: Manso, Marta
Publisher: name: EURORAD
Year: 2022
Subjects: subject: Uroradiology & genital male imaging
subject: Genital / Reproductive system male
subject: Vascular
subject: Ultrasound
subject: Ultrasound-Colour Doppler
subject: Clinical Cases

description: Clinical History: A 39-year-old male was admitted for right side scrotal pain. No fever, dysuria or trauma were noted. Physical examination revealed pain during palpation and no nodules or inflammatory signs. Laboratory findings showed leukocytosis, C-reactive protein elevation (6.05 mg/dL) and a SARS-Cov2 RT-PCR positive test. An ultrasound evaluation was requested. 

description: 39 years, male
Derivative Interactions during Inflation: A Systematic Approach
Creators: name: Abolhasani, Aliakbar
name: Goodhew, Harry
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a systematic prescription for calculating cosmological correlation functions for models with derivative interactions through the wavefunction of the universe and compare this result with the "in-in" formalism -- canonical approach. The key step in this procedure is to perform the path integral over conjugate momenta after which a straightforward generalisation of Feynman's Rules can be applied. We show that this integral recovers the classical action plus some additional divergent contributions which are necessary to cancel other divergences that arise due to loop diagrams involving time derivatives. As a side project, for the first time, we introduce the "off-shell" version of the in-in formalism that is sometimes more straightforward, especially for the models with derivative coupling. To examine our prescription, as a specific example, we work out the trispectra of the scalar fluctuation in the model with the $λ{ϕ'}^3$ derivative coupling.
description: 19+23 pages, 7 figures
Sonnenfleckenzeichnung Nr. 160.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 01.07.1973, erstellt von Sergio Cortesi, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1973

description: Bleistiftzeichnung mit Tinte und Farbstift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf dem Vordruck der Eidgenössischen Sternwarte Zürich. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert
Exploiting Quantitative Trait Analysis in Yeast to Identify Genetic Modifiers of Huntington’s and Parkinson’s Disease
Creators: name: Núñez, Mónica Alfonso
Publisher: name: University of Leicester
Year: 2022
Subjects: Uncategorized

description: Huntington’s disease (HD) and Parkinson’s disease (PD) are neurodegenerative diseases (NDs) in which protein misfolding/accumulation are associated with neuronal dysfunction and loss. HD is a hereditary disease caused by the expansion of a CAG trinucleotide repeat in the huntingtin (HTT) gene. Although the number of repeats correlates with the severity of the disease, there is still variability amongst individuals with the same number of repeats. PD is the second most common ND and, although there are familial forms, most PD cases are sporadic, caused by a combination of environmental and genetic risk factors, one of which is the SNCA gene that encodes α-Synuclein (αSyn). To find candidate genetic modifiers responsible for the variability in severity/risk in HD and PD, quantitative trait loci (QTL) analysis was performed in yeast. The effect of mutant HTT (mHTT) and αSyn on growth was assessed in 14 genetically diverse natural isolates using PHENOS - a software that allows the analysis of yeast growth on solid media -. The strains that showed the most extreme phenotypes (SX1, HN6 and BJ20) were intercrossed to generate a large population of stains with new combinations of alleles. The QTL analysis was performed using the effect on growth of mHTT and αSyn separately, and the possible modifier genes that were present in both lists were further validated in yeast and fruit flies by overexpressing or downregulating them. Through this work we identified four genes whose deletion enhanced the toxicity of the proteins: PPM1 and TIF6 enhanced both mHTT and αSyn toxicity, while PER1 and GIN4 only enhanced αSyn toxicity. The overexpression (OE) of TIF6 was protective against mHTT and αSyn toxicity in yeast. In conclusion, these four genes, specially TIF6, are interesting therapeutic targets for HD and PD and should be validated in more complex models.
List-Recoloring of Sparse Graphs
Creators: name: Cranston, Daniel W.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C15, 05C85, 05C12

description: Fix a graph $G$, a list-assignment $L$ for $G$, and $L$-colorings $α$ and $β$. An $L$-recoloring sequence, starting from $α$, recolors a single vertex at each step, so that each resulting intermediate coloring is a proper $L$-coloring. An $L$-recoloring sequence transforms $α$ to $β$ if its initial coloring is $α$ and its final coloring is $β$. We prove there exists an $L$-recoloring sequence that transforms $α$ to $β$ and recolors each vertex at most a constant number of times if (i) $G$ is triangle-free and planar and $L$ is a 7-assignment, or (ii) $\mathrm{mad}(G)<17/5$ and $L$ is a 6-assignment or (iii) $\mathrm{mad}(G)<22/9$ and $L$ is a 4-assignment. Parts (i) and (ii) confirm conjectures of Dvořák and Feghali.
description: 11 pages, 5 figures; to appear in European J. Combinatorics
Semi-annihilating dark matter coupled with Majorons
Creators: name: Miyagi, Takumi
name: Toma, Takashi
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The thermal production mechanism of dark matter is attractive and well-motivated by predictivity. A representative of this type of dark matter candidate is the canonical, weakly interacting massive particles. An alternative is semi-annihilating dark matter, which exhibits different phenomenological aspects from the former example. In this study, we constructed a model of dark matter semi-annihilating into a pair of anti-dark matter and a Majoron based on a global $U(1)_{B-L}$ symmetry, and show that semi-annihilation induces the core formation of dark matter halos, which can alleviate the so-called small-scale problems. In addition, the box-shaped spectrum of neutrinos was produced by the subsequent decay of the Majoron. This can be a distinctive signature of the dark matter in the model. We find a parameter space where the produced neutrinos can be detected by the future large-volume neutrino detector Hyper-Kamiokande. We also compared the dark matter scenario with the case of halo core formation by the strongly self-interacting dark matter.
description: 19 pages, 5 figures
Agrenia riparia Fjellberg 1986
Creators: name: Potapov, Mikhail
name: Gulgenova, Ayuna
name: Babykina, Marina
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Entognatha
Collembola
Isotomidae
Agrenia
Agrenia riparia

description: Agrenia riparia Fjellberg, 1986
Material examined. Buryat Republic: NW Buryat Republic, northern shore of Baikal Lake, nearby Goudjekit, ~ 600 m alt., under stones along bank of Goudjekit River, 16.viii.2013, coll. A.G. and M.P.; N Buryat Republic, Dzergynsky Nature Reserve, upper flow of Barguzin River, Turakina spring, ca. 1080 m alt., 55.34875°N, 111.49867°E, green mosses along bank, 10.ix.2012, coll. A.G. and M.P.
Distribution and ecology. It is a transholarctic species (Fjellberg 1986, Babenko 2002, Babenko & Fjellberg 2006). The Buryatian records are new for the area under study and are the most southern for the species. Ecology as common for the genus. It was not recorded in southern areas of the republic.
description: Published as part of Potapov, Mikhail, Gulgenova, Ayuna & Babykina, Marina, 2016, Isotomidae (Collembola) of Buryat Republic. III. The genera Vertagopus and Agrenia, with a note on ' Claw index', pp. 112-128 in Zootaxa 4088 (1) on pages 123-124, DOI: 10.11646/zootaxa.4088.1.5, http://zenodo.org/record/269176
Thermal Relaxation and Cooling of Quark Stars with a Strangelet Crust
Creators: name: Zapata, Joas
name: Negreiros, Rodrigo
name: Sales, Thiago
name: Jaikumar, Prashanth
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In this article, we explore the cooling of isolated quark stars. These objects are structured of a homogeneous quark matter core and crusted by matter. To do this, we adopt two kinds of crust: (i) a crust made of purely nuclear matter following the Baym-Pethick-Sutherland (BPS) equation of state (EoS) and (ii) a crust made of nuggets of strange quark matter (strangelets). Both models have the same quark matter core described by the MIT bag model EoS. Our main purpose is to quantify the effects of a strangelet crust on the cooling and relaxation times of these strange stars. We also perform a thorough study of the thermal relaxation of quark stars, in which we have found that objects with a strangelet crust have a significantly different thermal relaxation time. Our study also includes the possible effects of color superconductivity in the quark core.
description: 7 pages, 8 figures