cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Renormalization of parton quasi-distributions beyond the leading order: spacelike vs. timelike
Creators: name: Braun, V. M.
name: Chetyrkin, Konstantin
name: Kniehl, Bernd
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2020
Subjects: subject: 530
subject: gluon: operator
subject: quark antiquark
subject: higher-order: 0
subject: renormalization
subject: anomalous dimension
subject: perturbation theory
subject: higher-order
subject: Wilson loop
subject: nonlocal
subject: parton: distribution function
subject: NLO Computations
subject: QCD Phenomenology

description: We argue that the renormalization factors for non-local quark-antiquark and gluon operators at space-like and time-like separations connected by a Wilson line coincide to all orders in perturbation theory. We calculate the anomalous dimensions and renormalization constants of quark-antiquark and gluon operators to three- and two-loop accuracy, respectively, and also compute vacuum expectation values of these operators to three-loop accuracy.
Calculation of Asymptotic and RMS Kicks due to Higher Order Modes in the 3.9 GHz Cavity
Creators: name: Bellantoni, L.
name: Edwards, H.
name: Wanzenberg, R.
name: DESY
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2008

description: M-Report (2008).
Blue-Cloud D4.5 Interfacing EOSC Report (Release 2)
Creators: name: Buurman, Merret
name: Pagano, Pasquale
name: Candela, Leonardo
name: Widmann, Heinrich
Publisher: name: Zenodo
Year: 2022
Subjects: EOSC Provider
EOSC Resource
Service Catalogue
Service Onboarding

description: The Blue-Cloud Service platform features a variety of services that can be
used for undertaking world-class science via the European Open Science
Cloud (EOSC) framework, by featuring leading operational marine research
infrastructures and e-infrastructures. As part of its service offer, the
Blue-Cloud service catalogue gathers all the services enabled in the
Blue-Cloud Virtual Research Environment (VRE) that will be onboarded in the
EOSC Catalogue. This onboarding, once finished, will allow easy access to
all EOSC users to Blue-Cloud services via the EOSC Portal Marketplace .
This deliverable describes the onboarding of Blue-Cloud services available
in the Blue-Cloud Virtual Research Environment (VRE) into the EOSC
Catalogue. It includes details on the activities performed to ensure that
the configuration, formats and metadata of resources are compatible with
the requirements of the EOSC Catalogue and Marketplace. The document also
introduces how providers have been/are being imported and referenced into
the EOSC Catalogue and Marketplace. While the different procedures for
onboarding 'providers' and 'services' are described in detail in the first
release of the deliverable (D4.3), this document goes a step further by
describing the actual onboarding within the EOSC Catalogue and should be
considered as updated and extended version of D4.3.
Skew Andreev reflection in ferromagnet/superconductor junctions
Creators: name: Costa, Andreas
name: Matos-Abiague, Alex
name: Fabian, Jaroslav
Publisher: name: Universität Regensburg
Year: 2019
Subjects: subject: 530 Physik

description: Andreev reflection (AR) in ferromagnet/superconductor junctions is an indispensable spectroscopic tool for measuring spin polarization. We study theoretically how the presence of a thin semiconducting interface in such junctions, inducing Rashba and Dresselhaus spin-orbit coupling, modifies AR processes. The interface gives rise to a momentum- and spin-dependent scattering potential, making the AR probability strongly asymmetric with respect to the sign of the incident electrons’ transverse momenta. This skew AR creates spatial charge carrier imbalances and transverse Hall currents in the ferromagnet. We show that the effect is giant, compared to the normal regime. We provide a quantitative analysis and a qualitative picture of this phenomenon, and finally show that skew AR also leads to a widely tunable transverse supercurrent response in the superconductor.
Fermi Bubbles Inflated by Winds Launched from the Hot Accretion Flow in Sgr A*
Creators: name: Mou, Guobin
name: Yuan, Feng
name: Bu, Defu
name: Sun, Mouyuan
name: Su, Meng
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: A pair of giant gamma-ray bubbles have been revealed by the {\it Fermi} LAT. In this paper we investigate their formation mechanism. Observations have indicated that the activity of the supermassive black hole located at the Galactic center, Sgr A*, was much stronger than the present time. Specifically, one possibility is that while Sgr A* was also in the hot accretion regime, the accretion rate should be $10^3-10^4$ times higher during the past $\sim 10^7$ yr. On the other hand, recent MHD numerical simulations of hot accretion flows have unambiguously shown the existence of strong winds and obtained their properties. Based on these knowledge, by performing three-dimensional hydrodynamical simulations, we show in this paper that the Fermi bubbles could be inflated by winds launched from the ``past' hot accretion flow in Sgr A*. In our model, the active phase of Sgr A* is required to last for about 10 million years and it was quenched no more than 0.2 million years ago. The Central Molecular Zone (CMZ) is included and it collimates the wind orientation towards the Galactic poles. Viscosity suppresses the Rayleigh-Taylor and Kelvin-Helmholtz instabilities and results in the smoothness of the bubble edge. The main observational features of the bubbles can be well explained. Specifically, the {\it ROSAT} X-ray features are interpreted by the shocked interstellar medium and the interaction region between winds and CMZ gas. The thermal pressure and temperature obtained in our model are in good consistency with the recent {\it Suzaku} observations.
description: 12 pages,8 figures, Accepted by ApJ
ROSE Workshop on Radiation Hardening of Silicon Detectors
Creators: name: Lemeilleur, Francois
name: Lindstroem, Gunnar
name: Watts, Stephen J.
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 1998

description: 3rd ROSE Workshop on Radiation Hardening of Silicon Detectors, Hamburg, Germany, 12 Feb 1998 - 14 Feb 1998
GATERS at Transport Research Arena (TRA) Conference
Creators: name: Atlar, Mehmet
name: Aktas, Batuhan
name: Gurkan, Ahmet
name: Sasaki, Noriyuki
name: Sun, Xing
name: Korkut, Emin
name: Felli, Mario
Publisher: name: figshare
Year: 2022
Subjects: Marine engineering
Naval architecture

description: A paper entitled 'The GATERS Project – An Innovative way of retrofitting ships for greener and safer operations' which presents the first-year activities of the H2020 Innovation Action project GATERS for greener propulsion of ships using an innovative retrofit energy-saving and steering device, the Gate Rudder System (GRS). One of the project’s main aims is to retrofit a target coastal vessel with a GRS for the first time and demonstrate its effectiveness. The target vessel is the existing 6400 DWT general cargo ship (MV Erge), currently fitted with a high-lift conventional rudder system (CRS), which a retrofit GRS will replace in GATERS as one of the project aims. This paper provides a background of GRS technology and the project motivation, including a brief project overview. The details of the retrofit task involving the design of the main GRS components and estimated power-saving are also reported in the paper. The vessel is scheduled to be retrofitted in December 2022 for demonstration and further performance monitoring.
Symplectic Deformations of Gauged Maximal Supergravity
Creators: name: Dall'Agata, Gianguido
name: Inverso, Gianluca
name: Marrani, Alessio
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We identify the space of symplectic deformations of maximal gauged supergravity theories. Coordinates of such space parametrize inequivalent supergravity models with the same gauge group. We apply our procedure to the SO(8) gauging, extending recent analyses. We also study other interesting cases, including Cremmer-Scherk-Schwarz models and gaugings of groups contained in SL(8,R) and in SU*(8).
description: 30 pages. v2 minor clarifications. v3 extra acknowledgements, version published in JHEP
ACE-DATA workshop agenda November 5th - 6th 2018
Creators: name: Landwehr, Sebastian
name: Schmale, Julia
name: Walton, David WH
Publisher: name: Zenodo
Year: 2019
Subjects: Atmosphere
Sea
Interaction
Antarctica
Data science
Meeting agenda

description: Agenda of a workshop of the ACE-DATA Antarctic Sea-Atmosphere Interactions Data (ASAID) project, which was held at École Polytecnique Fédéral de Lausanne (EPFL) in November 2018.

The Antarctic Circumnavigation Expedition took place over a period of three months during the austral summer of 2016-2017 and presents the first foray into linking the islands, the surrounding ocean and the Antarctic continent. On board the R/V Akademik Tryoshnikov scientists from a wide range of disciplines undertook oceanographic, terrestrial and atmospheric studies and collected data and samples on the expedition track around the Antarctic continent.

The ACE-DATA: Delivering Added value To Antarctica project, a joint venture of the Swiss Polar Institute, the Paul Scherrer Institute and the Swiss Data Science Center began shortly after the expedition. It comprises two parts, of which one is a study of air-sea interactions using data science techniques, known as ASAID, while the other part is the creation of an openly accessible platform for all data collected during ACE.
description: We would like to acknowledge the efforts of all ACE members. ACE and J. Schmale received funding from École Polytechnicque Fédérale de Lausanne, the Swiss Polar Institute and from Ferring Pharmaceuticals. ACE-DATA is funded by the Swiss Data Science Center.
Sleep & Circadian Health Literacy Project
Creators: name: Okan, Orkan
name: Von Landwuest, Clara
name: Neumayer, Hannah
name: Dogru, Ufuk
name: Mcglashan, Elise
name: Spitschan, Manuel
name: Kervezee, Laura
name: Rovara, Nina
name: Lok, Renske
name: Najjar, Raymond
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Social and Behavioral Sciences

description: Pre-registration of project overview
Left or right cholesterics? A matter of helix handedness and curliness
Creators: name: Frezza, Elisa
name: Ferrarini, Alberta
name: Kolli, Hima Bindu
name: Giacometti, Achille
name: Cinacchi, Giorgio
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We have investigated the relationship between the morphology of helical particles and the features of the cholesteric (N$^\ast $) phase that they form. Using an Onsager-like theory, applied to systems of hard helices, we show that the cholesteric handedness and pitch depend on both the pitch and the curliness of the particles. The theory leads to the definition of pseudoscalars that correlate the helical features of the phase to the chirality of the excluded volume of the constituent particles.
Unifying Cyber Threat Intelligence
Creators: name: Menges, Florian
name: Sperl, Christine
name: Pernul, Günther
Publisher: name: Universität Regensburg
Year: 2019
Subjects: subject: 004 Informatik

description: The threat landscape and the associated number of IT security incidents are constantly increasing. In order to address this problem, a trend towards cooperative approaches and the exchange of information on security incidents has been developing over recent years. Today, several different data formats with varying properties are available that allow to structure and describe incidents as well as cyber threat intelligence (CTI) information. Observed differences in data formats implicate problems in regard to consistent understanding and compatibility. This ultimately builds a barrier for efficient information exchange. Moreover, a common definition for the components of CTI formats is missing. In order to improve this situation, this work presents an approach for the description and unification of these formats. Therefore, we propose a model that describes the elementary properties as well as a common notation for entities within CTI formats. In addition, we develop a unified model to show the results of our work, to improve the understanding of CTI data formats and to discuss possible future research directions.
Sleep & Circadian Health Literacy Project
Creators: name: Okan, Orkan
name: Von Landwuest, Clara
name: Dogru, Ufuk
name: Neumayer, Hannah
name: Mcglashan, Elise
name: Spitschan, Manuel
name: Kervezee, Laura
name: Rovara, Nina
name: Lok, Renske
name: Najjar, Raymond
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Social and Behavioral Sciences

description: Pre-registration of Step 1
Interface boundary conditions for dynamic magnetization and spin wave dynamics in a ferromagnetic layer with the interface Dzyaloshinskii-Moriya interaction
Creators: name: Kostylev, M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this work we derive the interface exchange boundary conditions for the classical linear dynamics of magnetization in ferromagnetic layers with the interface Dzyaloshinskii-Moriya interaction (IDMI). We show that IDMI leads to pinning of dynamic magnetization at the interface. An unusual peculiarity of the IDMI-based pinning is that its scales as the spin-wave wave number. We incorporate these boundary conditions into an existing numerical model for the dynamics of the Damon-Eshbach spin wave in ferromagnetic films. IDMI affects the dispersion and the frequency non-reciprocity of the traveling Damon-Eshbach spin wave. For a broad range of film thicknesses L and wave numbers the results of the numerical simulations of the spin wave dispersion are in a good agreement with a simple analytical expression which shows that the contribution of IDMI to the dispersion scales as 1/L, similarly to the effect of other types of interfacial anisotropy. Suggestions to experimentalists how to detect the presence of IDMI in a spin wave experiment are given.
Acetylenic Replacement of Albicidin's Methacrylamide Residue Circumvents Detrimental E/Z Photoisomerization and Preserves Antibacterial Activity
Creators: name: Behroz, Iraj
name: Kleebauer, Leonardo
name: Hommernick, Kay
name: Seidel, Maria
name: Grätz, Stefan
name: Mainz, Andi
name: Weston, John B.
name: Süssmuth, Roderich D.
Publisher: name: Technische Universität Berlin
Year: 2021
Subjects: subject: 540 Chemie und zugeordnete Wissenschaften
subject: antibiotics
subject: biological activity
subject: drug discovery
subject: medicinal chemistry
subject: structure-activity relationships

description: The natural product albicidin is a highly potent inhibitor of bacterial DNA gyrase. Its outstanding activity, particularly against Gram‐negative pathogens, qualifies it as a promising lead structure in the search for new antibacterial drugs. However, as we show here, the N‐terminal cinnamoyl moiety of albicidin is susceptible to photochemical E/Z isomerization. Moreover, the newly formed Z isomer exhibits significantly reduced antibacterial activity, which hampers the development and biological evaluation of albicidin and potent derivatives thereof. Hence, we synthesized 13 different variants of albicidin in which the vulnerable para‐coumaric acid moiety was replaced; this yielded photostable analogues. Biological activity assays revealed that diaryl alkyne analogues exhibited virtually undiminished antibacterial efficacy. This promising scaffold will therefore serve as a blueprint for the design of a potent albicidin‐based drug.
Description or experience? (Experiment 2)
Creators: name: Luckman, Ashley
name: Spektor, Mikhail S.
name: Weiss-Cohen, Leonardo
name: Olschewski, Sebastian
name: Konstantinidis, Emmanouil
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: Making risky choices is an unavoidable part of life: from choosing investments and medical treatments, to buying consumer products, or deciding whether to wear a helmet when cycling. When making a decision, people can learn about their options in two different ways: by reading descriptive summaries, for example, written reviews describing how often products from different brands fail; or from direct personal experience, for example, the past failure rates of similar products previously owned by the individual. The present study investigates which type of information individuals prefer basing their decisions on.
Narrative as rhetorical processes: a study of persuasion in Henry James’s work
Creators: name: Tian, Yingjie
Publisher: name: Macquarie University
Year: 2024
Subjects: classificationCode: 399999
subject: Other education not elsewhere classified

description: Henry James assumed irreplaceable importance in world literature. Jamesian studies has lasted one and a half centuries and is undergoing a revival in the twenty-first century. This dissertation conducts a formal-structural study of James’s works. It examines from the perspective of “persuasion” five of James’s works which represent his three creative themes, with classical, new rhetoric and rhetorical poetics as the theoretical bases. Among them, The Portrait of a Lady represents the “marriage” theme, The Ambassadors the “International Theme” and “The Ghostly Rental”, “The Way It Came” and The Turn of the Screw the “Wonder, Ghost and the Supernatural” theme. As for the two novels, the dissertation focuses on “persuasion” at the story level, discussing the important role the “persuasion” plot has played in the two works. In regard to the three tales, the dissertation focuses on “persuasion” at the discourse level. By viewing the tales mainly as the “persuasion” process conducted between James and his audience, the dissertation examines the recursive interactions among the implied James, the text and reader response. On this basis, the dissertation generalizes the “persuasion” mode unique to each of the three themes.
The Thermal Scalar and Random Walks in AdS3 and BTZ
Creators: name: Mertens, Thomas G.
name: Verschelde, Henri
name: Zakharov, Valentin I.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We analyze near-Hagedorn thermodynamics of strings in the WZW $AdS_3$ model. We compute the thermal spectrum of all primaries and find the thermal scalar explicitly in the string spectrum using CFT twist techniques. Then we use the link to the Euclidean WZW BTZ black hole and write down the Euclidean BTZ spectrum. We give a Hamiltonian interpretation of the thermal partition function of angular orbifolds where we find a reappearance of discrete states that dominate the partition function. Using these results, we discuss the nature of the thermal scalar in the WZW BTZ model. As a slight generalization of the angular orbifolds, we discuss the $AdS_3$ string gas with a non-zero chemical potential corresponding to angular momentum around the spatial cigar. For this model as well, we determine the thermal spectrum and the Hagedorn temperature as a function of chemical potential. Finally the nature of $α'$ corrections to the $AdS_3$ thermal scalar action is analyzed and we find the random walk behavior of highly excited strings in this particular $AdS_3$ background.
description: 74 pages, v2: version accepted for publication in JHEP
Lacunas in the optical force induced by quantum fluctuations of quasicontinuum of multipole plasmons
Creators: name: Andrianov, E. S.
name: Chtchelkatchev, N. M.
name: Pukhov, A. A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the force between plasmonic nanoparticle and highly excited two-level system (molecule). Usually van der Waals force between nanoscale electrically neutral systems is monotonic and attractive at moderate and larger distances and repulsive at small distances. In our system, the van der Waals force acting on molecule has optical nature. At moderate distances it is attractive as usual but its strength highly increases in a narrow distance ranges ("lacunas"). We show that quantum fluctuations of (quasi)continuum of multipole plasmons of high, nearly infinite degree altogether form effective environment and determine the interaction force while their spectral peculiarities stand behind the large and narrow lacunas in force. We solve exactly the Hamiltonian problem and discuss the role of the dissipation.
On Integer Additive Set-Indexers of Graphs
Creators: name: Sudev, N. K.
name: Germina, K. A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C78

description: A set-indexer of a graph $G$ is an injective set-valued function $f:V(G) \rightarrow2^{X}$ such that the function $f^{\oplus}:E(G)\rightarrow2^{X}-\{\emptyset\}$ defined by $f^{\oplus}(uv) = f(u){\oplus} f(v)$ for every $uv{\in} E(G)$ is also injective, where $2^{X}$ is the set of all subsets of $X$ and $\oplus$ is the symmetric difference of sets. An integer additive set-indexer is defined as an injective function $f:V(G)\rightarrow 2^{\mathbb{N}_0}$ such that the induced function $g_f:E(G) \rightarrow 2^{\mathbb{N}_0}$ defined by $g_f (uv) = f(u)+ f(v)$ is also injective. A graph $G$ which admits an IASI is called an IASI graph. An IASI $f$ is said to be a {\em weak IASI} if $|g_f(uv)|=max(|f(u)|,|f(v)|)$ and an IASI $f$ is said to be a {\em strong IASI} if $|g_f(uv)|=|f(u)| |f(v)|$ for all $u,v\in V(G)$. In this paper, we study about certain characteristics of inter additive set-indexers.
description: 12 pages. arXiv admin note: text overlap with arXiv:1312.7674 To Appear in Int. J. Math. Sci.& Engg. Appl. in March 2014
Merging patterns and processes of diffuse pollution in urban watersheds: A connectivity assessment
Creators: name: Paton, Eva
name: Haacke, Nasrin
Publisher: name: Technische Universität Berlin
Year: 2021
Subjects: subject: 577 Ökologie
subject: connectivity
subject: urban pollution
subject: sustainable urban drainage design
subject: critical source area

description: Urban diffuse pollution affects water resources as much as its rural counterpart does; however, it is considerably less studied. The full complexity of the urban landscape needs to be addressed to apprehend the diversity of surface layouts and covers, multiple pollution sources, and the diverse changes caused by different types of drainage systems. In this article, crucial patterns of pollution source areas are categorized, and current knowledge on their temporal and spatial variations are collated. Urban alterations of transport processes that enhance, delay, or inhibit diffuse pollution transport from source areas through the urban watershed are detailed. Current knowledge regarding diffuse pollution patterns and processes is conceptually merged by the simultaneous assessment of urban structural and functional connectivity relevant for pollutant transfer. Applying a more holistic approach is considered a prerequisite for identifying critical source areas of diffuse pollution within complex urban catchments, to minimize the transfer of particular harmful pollutants and to enhance future management of urban waters. This article is categorized under: Science of Water > Water Quality Engineering Water > Planning Water
En route vers la Science Ouverte - Gérer les données de sa recherche
Creators: name: Faity, Germain
name: de Lamotte, Frédéric
name: Dehne Garcia, Alexandre
Publisher: name: Zenodo
Year: 2022
Subjects: Science Ouverte
Open Science
Données de recherche
Research Data

description: Ce document résume en quelques étapes la démarche d’ouverture de ses données dans une perspective de Science Ouverte. D’après la formation « En route vers la Science Ouverte : Gérer les données de sa recherche » de Montpellier SupAgro (22 janvier 2020). Formation dispensée par Jean-François Martin, Alexandre Dehne Garcia, Frédéric de Lamotte. This document summarises in a few steps the process of opening up one's data in an Open Science perspective. Based on the training course "En route vers la Science Ouverte: Gérer les données de sa recherche" at Montpellier SupAgro (22 January 2020). Training given by Jean-François Martin, Alexandre Dehne Garcia, Frédéric de Lamotte.
description: {"references": ["https://doi.org/10.1007/978-3-319-00026-8_2", "https://doi.org/10.1038/533452a", "https://doi.org/10.1097/PRS.0b013e3181de24bc", "https://doi:10.1001/jama.2017.21168", "https://doi.org/10.1371/journal.pcbi.1005473", "https://doi.org/10.1371/journal.pbio.0040157", "https://doi.org/10.1038/sdata.2018.259"]}
Financial factors influencing environmental, social and governance ratings of public listed companies in Bursa Malaysia
Creators: name: Alam, Md. Mahmudul
Publisher: name: figshare
Year: 2023
Subjects: Banking, finance and investment not elsewhere classified
Environment and climate finance

description: Environmental, Social and Governance (ESG) ratings are widely recognised methods to assess the sustainability practices of corporations. However, the scores of these ratings are not satisfactory in emerging market economies. This study examines the financial factors that influence ESG ratings regarding public listed companies on the FTSE4 Good Bursa Malaysia Index (F4GBM Index). This paper uses static and dynamic Generalized Method of Moments (GMM) techniques to analyse the data of 31 public listed companies on the F4GBM Index and reported full ESG ratings data for the period 2007-2016. To utilise the maximum number of observations by avoiding the missing data and outlier due to COVID-19, this study applied the sample data up to 2016. Using the two-step system dynamic GMM estimator, such results indicate that highly profitable Malaysian companies enjoy a higher score for ESG overall ratings as well as all three individual ratings. Poorer credit management diminishes the environmental ratings, yet increases overall scores such as the social and governance scores. Companies with higher leverage have a weaker social, governance and overall score, but a higher environmental rating. Finally, companies eliciting a higher sustainable growth rate have weak governance and overall scores. This study provides empirical evidence that will be useful to capital market investors, management teams of these companies and policymakers in their efforts to promote responsible investment in Malaysian public listed companies in line with UN-PRI policy.
A Model for Overscreened Kondo Effect in Ultracold Fermi Gas
Creators: name: Kuzmenko, I.
name: Kuzmenko, T.
name: Avishai, Y.
name: Kikoin, K.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: The feasibility of realizing overscreened Kondo effect in ultra-cold Fermi gas of atoms with spin $s \ge \tfrac{3}{2}$ in the presence of a localized magnetic impurity atom is proved realistic. Specifying to a system of ultra cold $^{22}$Na Fermi gas and a trapped $^{197}$Au impurity, the mechanism of exchange interaction between the Na and Au atoms is elucidated and the exchange constant is found to be antiferromagnetic. The corresponding exchange Hamiltonian is derived, and the Kondo temperature is estimated at the order of $ 1 μ$K. Within a weak-coupling renormalization group scheme, it is shown that the coupling renormalizes to the non-Fermi liquid fixed point.
description: 9 pages, 5 figures
Investigation of UV Absorbers on Venus Using the 283 and 365 nm Phase Curves Obtained From Akatsuki
Creators: name: Lee, Yeon Joo
name: García Muñoz, Antonio
name: Yamazaki, Atushi
name: Yamada, M.
name: Watanabe, Shigeto
name: Encrenaz, T.
Publisher: name: Technische Universität Berlin
Year: 2021
Subjects: subject: 520 Astronomie und zugeordnete Wissenschaften
subject: atmosphere
subject: phase curve
subject: simulation
subject: UV image
subject: Venus

description: The so‐called unknown absorber in the clouds of Venus is an important absorber of solar energy, but its vertical distribution remains poorly quantified. We analyze the 283 and 365 nm phase curves of the disk‐integrated albedo measured by Akatsuki. Based on our models, we find that the unknown absorber can exist either well mixed over the entire upper cloud or within a thin layer. The necessary condition to explain the 365 nm phase curve is that the unknown absorber must absorb efficiently within the cloud scale height immediately below the cloud top. Using this constraint, we attempt to extract the SO2 abundance from the 283 nm phase curve. However, we cannot disentangle the absorption by SO2 and by the unknown absorber. Considering previous SO2 abundance measurements at midinfrared wavelengths, the required absorption coefficient of the unknown absorber at 283 nm must be more than twice that at 365 nm.
Bauelementarchitekturen für semitransparente organische Solarzellen
Creators: name: Czolk, Jens Christian
Publisher: name: Karlsruhe
Year: 2019
Subjects: Organische Photovoltaik
Organische Solarzelle
Semitransparenz
mechanische Flexibilität
Farbanpassung
Elektrodensysteme
Flüssigprozessierung

description: Die organische Photovoltaik ist eine aufstrebende Alternative zur derzeit dominanten Silizium-Solarzellentechnologie. Einerseits sind die Wirkungsgrade durch die spektral begrenzte Absorption der organischen Halbleiter eingeschränkt, andererseits ermöglichen sie die Herstellung semitransparenter Solarzellen in fast beliebigen Farben und Transmissionsgraden.

Für den Einsatz in Gebäudefassaden und speziell bei der Integration in Fenster ist ein grauer Farbeindruck der Solarzelle mit bestmöglichen Farbwiedergabeeigenschaften des transmittierten Lichts von großer Bedeutung. Deshalb wurden verschiedene produktionsnahe Konzepte entwickelt, um das Transmissionsspektrum von organischen Solarzellen, und damit ihre Farbe, anzupassen. Dies umfasst das Ausnutzen von Dünnschichtinterferenzen in den semitransparenten Elektroden, das Aufbringen einer Farbfilter-Schicht, die Integration von Farbstoffen in die flüssigprozessierte Elektrode und die Abstimmung der organischen Halbleiter in der photoaktiven Schicht hin zu einer neutralen Farbgebung der Solarzelle.

Um eine kostengünstige Prozessierung der organischen Solarzellen zu gewährleisten, müssen alle funktionalen Schichten der Solarzelle, einschließlich der zur elektrischen Anpassung nötigen Zwischenschichten, aus der Flüssigphase abgeschieden werden können. Zu diesem Zwecke wurde Wolframoxid aus einem Sol-Gel-Prozess und aus einer Nanopartikel-Dispersion als anodenseitige Zwischenschicht untersucht.

Um auch Photonen außerhalb des Absorptionsspektrums der photoaktiven Schicht für die Ladungsträgergeneration nutzbar zu machen, wurde im Rahmen dieser Arbeit die Methode der Photonen-Upconversion mit organischen Molekülen zum ersten Mal auf organische Solarzellen angewandt. Dazu wurde die Transmission einer semitransparenten, dünnen Silberelektrode optimiert und der Einfluss der Verkapselung auf die Solarzelle untersucht.

Schließlich wurde eine komplett flüssigprozessierte Solarzellen-Architektur entwickelt, die auf einem gedruckten Mikro-Silbergitter in Kombination mit dem hochleitfähigen Polymer PEDOT:PSS und PEDOT:PSS mit dispergierten Silbernanodrähten als Elektroden basiert. Beide Elektroden besitzen eine ausreichende Leitfähigkeit, um auch auf größeren Flächen ohne opake, makroskopische Leitungsnetzwerke auszukommen. Zusammen mit der Optimierung der photoaktiven Schicht konnte ein Wirkungsgrad der semitransparenten Solarzelle von fast 6% auf einer Fläche größer 1 cm² erzielt und eine erfolgreiche monolithische Serienverschaltung einzelner Solarzellen zu einem Mini-Solarmodul gezeigt werden.
Early performances of cement paste in the presence of triethanolamine: Rheology, setting and microstructural development
Creators: name: Lu, Zichen
name: Peng, Xinyi
name: Dorn, Tobias
name: Hirsch, Tamino
name: Stephan, Dietmar
Publisher: name: Technische Universität Berlin
Year: 2021
Subjects: subject: 540 Chemie und zugeordnete Wissenschaften
subject: composites
subject: non‐polymeric materials
subject: rheology
subject: separation techniques

description: The effect of triethanolamine (TEA) at various dosages on the early performance of cement paste was systematically evaluated through the techniques of rheological measurements, penetration tests, and ultrasonic pulse velocity. The correlation of early performance to the chemical hydration process was analyzed by calorimetry, zeta potential, in situ XRD, and pore solution analysis. It is found that the effect of TEA on the early performance of cement paste is strongly dependent on its dosage. With the TEA dosage below 0.1 wt%, the setting and microstructural development of cement paste are retarded. Meanwhile, the yield stress of fresh paste is decreased due to the increasing zeta potential of cement grains. The promoted formation of ettringite (AFt) and monosulfate (AFm) caused by TEA decreases the rheological retention ability. At dosages ≥0.2 wt%, the reaction of aluminate‐containing phases is greatly accelerated and a flash setting is observed. Besides, the importance of ferric phase on the reaction of cement with TEA is highlighted. At a low dosage, TEA prefers to accelerate the dissolution of tetracalcium aluminoferrite (C4AF) first and increases the [Fe] in the pore solution of cement paste. In cement without C4AF, the retardation of TEA on silicate phase hydration is significantly alleviated.
title: Masculinity and the sixties British film
Creators: name: Claydon, E. Anna
Publisher: name: University of Kent
Year: 2022

description: British cinema has increasingly been a focus of study for academics in the UK and elsewhere over the last 15 years but work upon the films has been dominated by a cultural history approach. This has meant that whilst the British cinematic D?B65:. is well documented, and its place within culture understood, the films themselves have remained a secondary aspect - little regarded beyond their value as artefacts. This thesis seeks to address this practice by discussing the representation of a key aspect within the British national cinema, masculinity, via methodologies more typical of closer analyses - particularly psychoanalysis and narrative theory - although its generally interdisciplinary technique also means that the cultural studies method is equally, if contextually, important. I analyse four films to demonstrate my theoretical schema - that the evidence 2; the text is primary whilst the context is secondary for interpreting the representation of masculinities in British film: &=7 Projected Man (Curteis, 1966), The Loneliness o f the Long Distance Runner (Richardson, 1962), The Hill (Lumet, 1965) and Lawrence o f Arabia (Lean, 1962). With the notable exception of Leanâ€™s epic, none of these films have received significant analysis and in the case of The Projected Man and The Hill none at all. Therefore, the work herein is original both in the application of method and subject matter. I have chosen to focus on films before 1966 because they precede the so- called â€˜swinging Londonâ€™ era, a period which has received much close cultural analysis. It would be a false economy to prioritise the â€˜counter-cultureâ€™ of the late-60s because those films which manifest it cannot be said to represent wider discourses of sixties British identity but these earlier movies do reveal the political tensions in operation within the fiction of dominant and subordinate ideologies. Consequently, the four films within this thesis can be said to typify more accurately British cinema during the 1960s.
Geometrical Scaling of Direct-Photon Production in Hadron Collisions from RHIC to the LHC
Creators: name: Klein-Bösing, Christian
name: McLerran, Larry
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider pp, dAu and AuAu production of photons at RHIC energies, and PbPb collisions at LHC energy. We show that the inclusive spectrum of photons in the transverse momentum range of 1 GeV < pT <= 4 GeV satisfies geometric scaling. Geometric scaling is a property of hadronic interactions predicted by theories of gluon saturation, and expresses rates in terms of dimensionless ratios of the transverse momentum to saturation momentum. We show excellent agreement with geometric scaling with the only input being the previously measured dependence of the saturation momentum upon Bjorken x and centrality.
description: 12 pages, 4 figures
Directed Assembly of Multi‐Walled Nanotubes and Nanoribbons of Amino Acid Amphiphiles Using a Layer‐by‐Layer Approach
Creators: name: Siegl, Kathrin
name: Kolik‐Shmuel, Luba
name: Zhang, Mingming
name: Prévost, Sylvain
name: Vishnia, Kalanit
name: Mor, Amram
name: Appavou, Marie‐Sousai
name: Jafta, Charl J.
name: Danino, Dganit
name: Gradzielski, Michael
Publisher: name: Technische Universität Berlin
Year: 2021
Subjects: subject: 541 Physikalische Chemie
subject: amino acid amphiphiles
subject: cryogenic transmission electron microscopy
subject: layer-by-layer assembly
subject: multilayer nanotubes
subject: small-angle neutron scattering

description: Monodisperse unilamellar nanotubes (NTs) and nanoribbons (NRs) were transformed to multilamellar NRs and NTs in a well‐defined fashion. This was done by using a step‐wise approach in which self‐assembled cationic amino acid amphiphile (AAA) formed the initial NTs or NRs, and added polyanion produced an intermediate coating. Successive addition of cationic AAA formed a covering AAA layer, and by repeating this layer‐by‐layer (LBL) procedure, multi‐walled nanotubes (mwNTs) and nanoribbons were formed. This process was structurally investigated by combining small‐angle neutron scattering (SANS) and cryogenic‐transmission electron microscopy (cryo‐TEM), confirming the multilamellar structure and the precise layer spacing. In this way the controlled formation of multi‐walled suprastructures was demonstrated in a simple and reproducible fashion, which allowed to control the charge on the surface of these 1D aggregates. This pathway to 1D colloidal materials is interesting for applications in life science and creating well‐defined building blocks in nanotechnology.
Charge-Induced Structural Changes in a Single Molecule Investigated by Atomic Force Microscopy
Creators: name: Scheuerer, Philipp
name: Patera, Laerte L.
name: Simbürger, Felix
name: Queck, Fabian
name: Swart, Ingmar
name: Schuler, Bruno
name: Gross, Leo
name: Moll, Nikolaj
name: Repp, Jascha
Publisher: name: Universität Regensburg
Year: 2019
Subjects: subject: 530 Physik
subject: 540 Chemie

description: Intramolecular structural relaxations occurring upon electron transfer are crucial in determining the rate of redox reactions. Here, we demonstrate that subangstrom structural changes occurring upon single-electron charging can be quantified by means of atomically resolved atomic force microscopy (AFM) for the case of single copper(II)phthalocyanine (CuPc) molecules deposited on an ultrathin NaCl film. Imaging the molecule in distinct charge states (neutral and anionic) reveals characteristic differences in the AFM contrast. In comparison to density functional theory simulations these changes in contrast can be directly related to relaxations of the molecule’s geometric structure upon charging. The dominant contribution arises from a nonhomogeneous vertical relaxation of the molecule, caused by a change in the electrostatic interaction with the surface.
Bright electrically controllable quantum-dot-molecule devices fabricated by in situ electron-beam lithography
Creators: name: Schall, Johannes
name: Deconinck, Marielle
name: Bart, Nikolai
name: Florian, Matthias
name: Helversen, Martin Von
name: Dangel, Christian
name: Schmidt, Ronny
name: Bremer, Lucas
name: Bopp, Frederik
name: Hüllen, Isabell
name: Gies, Christopher
name: Reuter, Dirk
name: Wieck, Andreas D.
name: Rodt, Sven
name: Finley, Jonathan J.
name: Jahnke, Frank
name: Ludwig, Arne
name: Reitzenstein, Stephan
Publisher: name: Technische Universität Berlin
Year: 2021
Subjects: subject: 530 Physik
subject: circular Bragg gratings
subject: determinsitic device fabrication
subject: quantum dot molecules
subject: quantum light sources
subject: quantum memory

description: Self-organized semiconductor quantum dots represent almost ideal two-level systems, which have strong potential to applications in photonic quantum technologies. For instance, they can act as emitters in close-to-ideal quantum light sources. Coupled quantum dot systems with significantly increased functionality are potentially of even stronger interest since they can be used to host ultra-stable singlet-triplet spin qubits for efficient spin-photon interfaces and for deterministic photonic 2D cluster-state generation. An advanced quantum dot molecule (QDM) device is realized and excellent optical properties are demonstrated. The device includes electrically controllable QDMs based on stacked quantum dots in a pin-diode structure. The QDMs are deterministically integrated into a photonic structure with a circular Bragg grating using in situ electron beam lithography. A photon extraction efficiency of up to (24 ± 4)% is measured in good agreement with numerical simulations. The coupling character of the QDMs is clearly demonstrated by bias voltage dependent spectroscopy that also controls the orbital couplings of the QDMs and their charge state in quantitative agreement with theory. The QDM devices show excellent single-photon emission properties with a multi-photon suppression of 𝑔(2)(0)=(3.9±0.5)×10−3 . These metrics make the developed QDM devices attractive building blocks for use in future photonic quantum networks using advanced nanophotonic hardware.
The Riemann zeros as energy levels of a Dirac fermion in a potential built from the prime numbers in Rindler spacetime
Creators: name: Sierra, German
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We construct a Hamiltonian H whose discrete spectrum contains, in a certain limit, the Riemann zeros. H is derived from the action of a massless Dirac fermion living in a domain of Rindler spacetime, in 1+1 dimensions, that has a boundary given by the world line of a uniformly accelerated observer. The action contains a sum of delta function potentials that can be viewed as partially reflecting moving mirrors. An appropriate choice of the accelerations of the mirrors, provide primitive periodic orbits associated to the prime numbers $p$, whose periods, measured by the observer's clock, are log p. Acting on the chiral components of the fermion, H becomes the Berry-Keating Hamiltonian (x p + p x)/2, where x is identified with the Rindler spatial coordinate and p with the conjugate momentum. The delta function potentials give the matching conditions of the fermion wave functions on both sides of the mirrors. There is also a phase shift for the reflection of the fermions at the boundary where the observer sits. The eigenvalue problem is solved by transfer matrix methods in the limit where the reflection amplitudes become infinitesimally small. We find that for generic values of the phase shift the spectrum is a continuum, where the Riemann zeros are missing, as in the adelic Connes model. However, for some values of phase shift, related to the phase of the zeta function, the Riemann zeros appear as discrete eigenvalues immersed in the continuum. We generalize this result to the zeros of Dirichlet L-functions, associated to primitive characters, that are encoded in the reflection coefficients of the mirrors. Finally, we show that the Hamiltonian associated to the Riemann zeros belongs to class AIII, or chiral GUE, of Random Matrix Theory.
description: 32 pages, 5 figs. Correction of typos, addition of comments and some references
First yield in the Maugis‐adhesive contact of elastic spheres
Creators: name: Leroy, Jean‐Emmanuel
name: Willert, Emanuel
Publisher: name: Technische Universität Berlin
Year: 2021
Subjects: subject: 530 Physik
subject: adhesion
subject: first yield
subject: Maugis theory
subject: von Mises criterion

description: We analyze the onset of plastic yield in the Maugis‐adhesive contact of elastic spheres. Written in proper dimensionless variables, the problem solution depends on Poisson's ratio, the Tabor parameter and a non‐dimensional adhesion strength. The influences of adhesion range and strength are studied in detail. First yield can either occur inside the bodies on the axis of symmetry (for long range adhesion) or at the contact boundary (for short range adhesion). Adhesion significantly reduces the external load necessary to initiate plastic yield. A simple analytic solution for the critical load in the DMT‐limit of adhesion is being derived. Our results are quantitatively similar to previously published findings based on the double Hertz model of adhesion and can for example be applied to study an adhesive spherical microcontact in the contact of rough surfaces.
Breakdown of QCD Factorization for P-Wave Quarkonium Production at Low Transverse Momentum
Creators: name: Ma, J. P.
name: Wang, J. X.
name: Zhao, S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Quarkonium production at low transverse momentum in hadron collisions can be used to extract Transverse-Momentum-Dependent(TMD) gluon distribution functions, if TMD factorization holds there. We show that TMD factorization for the case of P-wave quarkonium with $J^{PC}=0^{++}, 2^{++}$ holds at one-loop level, but is violated beyond one-loop level. TMD factorization for other P-wave quarkonium is also violated already at one-loop.
description: Published version in Physics Letters B (2014), pp. 103-108
Richard Stanley through a crystal lens and from a random angle
Creators: name: Schilling, Anne
Publisher: name: arXiv
Year: 2014
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05E10, 05A05, 20G42, 60J10

description: We review Stanley's seminal work on the number of reduced words of the longest element of the symmetric group and his Stanley symmetric functions. We shed new light on this by giving a crystal theoretic interpretation in terms of decreasing factorizations of permutations. Whereas crystal operators on tableaux are coplactic operators, the crystal operators on decreasing factorization intertwine with the Edelman-Greene insertion. We also view this from a random perspective and study a Markov chain on reduced words of the longest element in a finite Coxeter group, in particular the symmetric group, and mention a generalization to a poset setting.
description: 11 pages; 3 figures; v2 updated references and added discussion on Coxeter-Knuth graph