cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Constraints on Dark Matter Annihilation Cross Section in Scenarios of Brane-World and Quintessence
Creators: name: Guo, Wan-Lei
name: Zhang, Xin
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the dark matter annihilation in the brane-world and quintessence scenarios, in which the modified cosmological expansion rate can enhance the thermal relic density of dark matter. According to the observed dark matter abundance, we constrain the thermally averaged annihilation cross section in these two scenarios. In addition, the big bang nucleosynthesis and the partial-wave unitarity are also used to place bounds on . It is found that both scenarios can lead to a large annihilation cross section, so they can be used to explain the recent PAMELA, ATIC and PPB-BETS anomalies.
description: 5 pages, 2 figures. Comments and references added, publication in Phys. Rev. D
Supersymmetry and Vector-like Extra Generation
Creators: name: Liu, Chun
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Within the framework of supersymmetry, the particle content is extended in a way that each Higgs doublet is in a full generation. Namely in addition to ordinary three generations, there is an extra vector-like generation, and it is the extra slepton SU(2)_L doublets that are taken to be the two Higgs doublets. R-parity violating interactions contain ordinary Yukawa interactions. Breaking of supersymmetry and gauge symmetry are analyzed. Fermion and boson spectra are calculated. Phenomenological constraints and relevant new physics at Large Hadron Collider are discussed.
description: 23 pages, no figure, revtex4
Still in Light-Cone Superspace
Creators: name: Ramond, Pierre
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The recently formulated Bagger-Lambert-Gustavsson (BLG) theory in three dimensions is described in terms of a constrained chiral superfield in light-cone superspace. We discuss the use of Superconformal symmetry to determine the form of its interactions, in complete analogy with N=4 SuperYang-Mills in four dimensions.
description: Invited Talk at Shifmania, St PAul-Minneapolis, May 2009
Risk-taking & postmodernity : commodification & the ecstatic in leisure lifestyles : the case of surfing
Creators: name: Stranger, MJA
Publisher: name: University Of Tasmania
Year: 2023

description: The thesis is a study of surfing in Australia. It examines the surfing subculture and its relationship with the dominant culture; the risk-taking orientation of its bodily practices and the role they play in the construction of individual and group identity and social formations; and the multidimensional relationships between the surfing culture industry, surfing's sports bureaucracy, bodily practices, social configurations and subcultural integrity. The study is based on the hypothesis that the surfing subculture in Australia is a distinctly postmodern configuration but one which displays a level of stability not accounted for in postmodern theory. It informs current debates over the nature of the self and society in post-modernity. The scope of the research was national because previous studies of surfing, both in Australia and the USA, suffered from too narrow a scope; either focusing on one sector or geographic area. The breadth of this study enabled coverage of all sectors, geographic types, and forms of surfing subculture in Australia. Participant observation was undertaken during a ten month field trip to 15 surfing locations, covering all States and surfing location types. The observations were supplemented by recorded interviews with 31 key people, 129 questionnaires administered at 16 specific surfing sites, and an analysis of the surfing media and other documentation. The thesis concludes that post-modernity provides an environment in which the self can become anchored in the shared transcendent experience of bodily practice, which forms the basis of stable social formations. Through interaction with the sublime in nature, the self 'experiences itself' in communion with the world. This transcendence is both a loss of self and an expanded sense of self, whereby subject and object merge in ecstatic experience. The shared knowledge of ecstatic experience constitutes a conscience collectif which underpins the subculture's social formations at the local and global level. The surfing culture industry mediates the experience across the world in images, text and symbolic form. Local neo-tribal formations reinforce the ecstatic experience through their hyper commodified culture and their sociality. Their structure promotes the hyper individualistic pursuit of ecstatic experience and constitutes a self-perpetuating social configuration whereby these reflexive communities are constantly reconstructed through bodily practice. This aesthetic reflexivity provides a bulwark against alienating bureaucratization and fosters a form of competitive surfing which further reinforces the foundational experience.
Density functional calculation of many-electron systems in cartesian coordinate grid
Creators: name: Roy, Amlan K.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: A recently developed density functional method, within Hohenberg-Kohn-Sham framework, is used for faithful description of atoms, molecules in Cartesian coordinate grid, by using an LCAO-MO ansatz. Classical Coulomb potential is obtained by means of a Fourier convolution technique. All two-body potentials (including exchange-correlation (XC)) are constructed directly on real grid, while their corresponding matrix elements are computed from numerical integration. Detailed systematic investigation is made for a representative set of atoms/molecules through a number of properties like total energies, component energies, ionization energies, orbital energies, etc. Two nonlocal XC functionals (FT97 and PBE) are considered for pseudopotential calculation of 35 species while preliminary all-electron results are reported for 6 atoms using the LDA XC density functional. Comparison with literature results, wherever possible, exhibits near-complete agreement. This offers a simple efficient route towards accurate reliable calculation of many-electron systems in the Cartesian grid. Future prospect of this method is also discussed.
description: 14 pages, 3 tables, added references
Deceleration of arbitrarily magnetized GRB ejecta: the complete evolution
Creators: name: Mimica, P.
name: Giannios, D.
name: Aloy, M. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: (Abridged) We aim to quantitatively understand the dynamical effect and observational signatures of magnetization of the GRB ejecta on the onset of the afterglow. We perform ultrahigh-resolution one-dimensional relativistic MHD simulations of the interaction of a radially expanding, magnetized ejecta with the interstellar medium. The need of ultrahigh numerical resolution derives from the extreme jump conditions in the region of interaction between the ejecta and the circumburst medium. We study the evolution of an ultrarelativistic shell all the way to a the self-similar asymptotic phase. Our simulations show that the complete evolution can be characterized in terms of two parameters, namely, the ξparameter introduced by Sari & Piran (1995) and the magnetization σ_0. We exploit this property by producing numerical models where the shell Lorentz factor is γ_0 ~ tens and rescaling the results to arbitrarily large γ_0. We find that the reverse shock is typically very weak or absent for ejecta characterized by σ_0 >~ 1. The onset of the forward shock emission is strongly affected by the magnetization. On the other hand, the magnetic energy of the shell is transfered to the external medium on a short timescale (~several times the duration of the burst). The later forward shock emission does not contain information for the initial magnetization of the flow. The asymptotic evolution of strongly magnetized shells, after they have suffred a substantial deceleration, resembles that of hydrodynamic shells, i.e., they fully enter in the Blandford-McKee self-similar regime.
description: 14 pages, 10 figures, accepted for publication in Astronomy and Astrophysics
Ermittlung der Schäden an der Zweigbibliothek Forstwesen der SLUB Dresden durch das Hochwasser der Wilden Weißeritz im August 2002 und Vorschläge zu deren Beseitigung
Creators: name: Vogel, Michael
Publisher: name: Humboldt-Universität zu Berlin
Year: 2004
Subjects: subject: 020 Bibliotheks- und Informationswissenschaften

description: In einem Rückblick auf die Flutkatastrophe in Tharandt im August 2002 werden detailliert die Auswirkungen des Hochwassers der Wilden Weißeritz auf die Zweigbibliothek Forstwesen der SLUB Dresden und die damit verbundenen Schäden dargestellt: Die Zweigbibliothek verfügt über eine kulturhistorisch wertvolle Sammlung forst- und jagdkundlicher Literatur mit einem umfangreichen Altbestand. Durch den Einsatz zahlreicher Helfer konnte ein Vielzahl von Werken aus den Fluten geborgen, schockgefroren und anschließend gefriergetrocknet werden. Dennoch sind die Bestandsverluste durch das Hochwasser erheblich. Es wird versucht, die Bücherbergung unter dem Aspekt ‚Katastrophenmanagement‘ auszuwerten und Schlussfolgerungen aufzuzeigen. Weiterhin werden Ziele für die Wiederherstellung der Sammlung formuliert und Perspektiven am Standort Tharandt für die Zweigbibliothek Forstwesen aufgezeigt.
Wirksamer CO2-Preis plus Klimadividende: Der smarte Weg zur Klimarettung oder politisch riskant?
Creators: name: Wolfsteiner, Andreas
Publisher: name: Zenodo
Year: 2022
Subjects: Klimapolitik
Klimaschutzinstrumente
CO2-Preis
Klimadividende
EU-ETS
BEHG
nEHS
ETS 2
CO2-Abgabe
CO2-Steuer
Emissionshandel
Energiegeld
Klimageld
Klimaprämie
fee and dividend

description: Thesen Diskussionspapier: Eine CO2-Bepreisung als zentrales Instrument, um den Dekarbonisierungsprozess und die Einhaltung der Reduktionsziele zu steuern, wäre äußerst hilfreich. Durch eine Pro-Kopf-Ausschüttung der gesamten Einnahmen aus einer CO2-Bepreisung und weiterer zielgenauer sozialpolitischer Maßnahmen kann eine wirksame CO2-Bepreisung auch politisch zu einem Erfolgsmodell werden. Für Unternehmen, die dies benötigen, muss ein funktionierender Carbon-Leakage-Schutz bestehen. Bestimmte industrielle Prozesse, wie z.B. die Stahlproduktion, müssen gesondert betrachtet werden. ► ein wirksamer CO2-Preis mit vollständiger Klimadividende kann der Game-Changer schlechthin sein
Measurement of azimuthal asymmetries of the unpolarized cross section at HERMES
Creators: name: Giordano, Francesca
name: Lamb, Rebecca
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A multi-dimensional (x, y, z, P_{h\perp}) extraction of cosϕ_h and cos2ϕ_h azimuthal asymmetries of unpolarized Semi-Inclusive Deep Inelastic Scattering at HERMES is discussed. The use of data taken with hydrogen and deuterium targets and the separation of positive and negative hadrons allow to access flavor-dependent information about quark intrinsic transverse momenta and spin-orbit correlations. This flavor sensitivity allows for a discrimination between theoretical models in the HERMES kinematic regime.
description: Proceedings of Spin 2008 conference, 4 pages, 3 figures
Spanish Mission Archaeology near Pensacola, Florida
Creators: name: Worth, John
Publisher: name: Archaeology Data Service
Year: 2012

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Implications to $c\bar s$ assignments of $D_{s1}(2700)^\pm$ and $D_{sJ}(2860)$
Creators: name: Zhang, Ailin
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Possible assignments of $D_{s1}(2700)^\pm$ and $D_{sJ}(2860)$ in the conventional quark model are analyzed. The study indicates that both the orbitally excited $c\bar s$ and the radially excited $c\bar s$ are possible. Some implications to these assignments are explored. If $D_{s1}(2700)^\pm$ and $D_{sJ}(2860)$ are the orbitally excited D-wave $1^- (j^P={3\over 2}^-)$ and $3^- (j^P={5\over 2}^-)$, respectively, another orbitally excited D-wave $2^-$ $D_s$, $D_{s2}(2800)$, is expected. If $D_{s1}(2700)^\pm$ and $D_{sJ}(2860)$ are the first radially excited $1^- (j^P={1\over 2}^-)$ and $0^+ (j^P={1\over 2}^+)$, respectively, other two radially excited $0^- D^\prime_s(2582)$ and $1^+ D^\prime_{s1}(2973)$ are expected. $D_{s2}(2800)$ and $D^\prime_{s1}(2973)$ are mixing states. The chiral doubling relation may exist in radially excited $D_s$, the splitting between the parity partners(the $(0^-,1^-)$ and the $(0^+,1^+)$) is $\approx 280$ MeV.
description: 4 pages, 4 tables, RevTex
Archaeology down South: between Buenos Aires and Patagonia
Creators: name: Figuerero, María José
Publisher: name: Archaeology Data Service
Year: 2012

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Rathnadrinna Research Excavation, Cashel, Co. Tipperary, Ireland
Creators: name: OBrien, Richard
Publisher: name: Archaeology Data Service
Year: 2012

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Lower dimensional volumes and the Kastler-Kalau-Walze type theorem for Manifolds with Boundary
Creators: name: Wang, Yong
Publisher: name: arXiv
Year: 2009
Subjects: subject: Differential Geometry (math.DG)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 58G20, 53A30, 46L87

description: In this paper, we define lower dimensional volumes of spin manifolds with boundary. We compute the lower dimensional volume ${\rm Vol}^{(2,2)}$ for 5-dimensional and 6-dimensional spin manifolds with boundary and we also get the Kastler-Kalau-Walze type theorem in this case.
Wirksamer CO2-Preis plus Klimadividende: Der smarte Weg zur Klimarettung oder politisch riskant?
Creators: name: Wolfsteiner, Andreas
Publisher: name: Zenodo
Year: 2023
Subjects: Klimapolitik
Klimaschutzinstrumente
CO2-Preis
Klimadividende
EU-ETS
BEHG
nEHS
ETS 2
CO2-Abgabe
CO2-Steuer
Emissionshandel
Energiegeld
Klimageld
Klimaprämie
fee and dividend

description: Thesen Diskussionspapier: Eine CO2-Bepreisung als zentrales Instrument, um den Dekarbonisierungsprozess und die Einhaltung der Reduktionsziele zu steuern, wäre äußerst hilfreich. Durch eine Pro-Kopf-Ausschüttung der gesamten Einnahmen aus einer CO2-Bepreisung und weiterer zielgenauer sozialpolitischer Maßnahmen kann eine wirksame CO2-Bepreisung auch politisch zu einem Erfolgsmodell werden. Für Unternehmen, die dies benötigen, muss ein funktionierender Carbon-Leakage-Schutz bestehen. Bestimmte industrielle Prozesse, wie z.B. die Stahlproduktion, müssen gesondert betrachtet werden. ► ein wirksamer CO2-Preis mit vollständiger Klimadividende kann der Game-Changer schlechthin sein
A Day with Field Archaeologists in the Republic of Macedonia
Creators: name: Dimitrovska, Vasilka
Publisher: name: Archaeology Data Service
Year: 2012

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
title: An X-ray and neutron scattering study of amorphous hydrogenated carbon
Creators: name: Burke, Theresa Mary
Publisher: name: University of Kent
Year: 2021

description: A series of thin film and powder samples of amorphous hydrogenated carbon (a-CH) have been deposited in a fast atom source, from one of three hydrocarbon precursor gases, at a deposition energy ranging between 0.5keV and 1.2keV. Neutron scattering studies, sensitive to both the carbon and hydrogen environments, have been carried out on three of these samples, deposited at the same impact energy, having varying degrees of isotopic enrichment. The measured scattering profiles have been used to derive the partial C-C, C-H and H-H correlation functions for the material, affording an insight into the structural configuration of this phase of a-C:H of unique clarity. Complementary X-ray diffraction measurements, dominated by contributions from the carbon matrix, have been made on these isotopically substituted samples and two further samples deposited at a lower deposition energy. A structural reconfiguration from a graphite-like, highly trigonally bonded network, to a more diamond-like atomic arrangement has been observed as the deposition energy falls, accompanied by a progressive change in the void structure. X-ray diffraction studies have also been made of two samples and of a-C:H, deposited from the same precursor has, at impact energies of 0.5keV and 0.85keV. Again a breakdown in the intra- and inter-layer graphite-like structural arrangement has been found to occur as the deposition energy decreases. The Warren-Mavel fluorescence detection technique has been used to remove the incoherent scattering contribution to the measured X-ray scattering profiles and has been shown to be highly efficient at the removal of such contributions when used in conjunction with a synchrotron X-ray source. In fact, this technique has been so successful that is has highlighted the problem of obtaining suitable theoretical self scattering curbes for the coherent data accessed. Preliminary studies on a novel glancing angle X-ray diffraction technique for the in situ analysis of thin film samples of a-C:H, mounted on a crystalline substrate, have been carried out. Two films have been studied, and early results have been encouraging, showing that not only can scattering profiles be collected for these low Z, amorphous systems from films 1μm thick, but that depth profiling of the thin film/substrate system is also possible.
The Archaeology Data Service, Working to Keep Your Bits in Good Order
Creators: name: Jeffrey, Stuart
Publisher: name: Archaeology Data Service
Year: 2012

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
title: Sovereign Bancorp and Relational Investors: The Role of the Activist Hedge Fund
Creators: name: Larcker, David F.
name: Tayan, Brian
Publisher: name: Stanford University Graduate School of Business
Year: 2007

description: In 2005, Relational Investors, a registered investment advisor, launched a proxy contest to gain two seats on the board of directors of Sovereign Bancorp. Relational accused Sovereign of operational mismanagement and poor corporate governance, representing a breach in fiduciary responsibility by the company’s board of directors. Relational claimed that a board reconstitution was in the best interest of investors. Subsequently, Sovereign entered into a controversial three-way deal with Banco Santander Central Hispano of Spain, which thwarted Relational’s efforts by diluting its ownership position and by giving Santander board seats and veto power over the removal of Sovereign’s CEO. The case discusses the tactics used by Relational Investors to attempt to derail the Santander deal and the tactics used by Sovereign Bancorp to defend it.
A survey on Weyl calculus for representations of nilpotent Lie groups
Creators: name: Beltita, Ingrid
name: Beltita, Daniel
Publisher: name: arXiv
Year: 2009
Subjects: subject: Analysis of PDEs (math.AP)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: Primary 81S30; Secondary 22E25, 22E27, 35S05

description: We survey some aspects of the pseudo-differential Weyl calculus for irreducible unitary representations of nilpotent Lie groups, ranging from the classical ideas to recently obtained results. The classical Weyl-Hörmander calculus is recovered for the Schrödinger representation of the Heisenberg group. Our discussion concerns various extensions of this classical situation to arbitrary nilpotent Lie groups and to some infinite-dimensional Lie groups that allow us to handle the magnetic pseudo-differential calculus.
description: 12 pages
Another Day In The Life (Of An Archaeological Geophysicist)
Creators: name: Hunter, David
Publisher: name: Archaeology Data Service
Year: 2012

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Wirksamer CO2-Preis plus Klimadividende: Der smarte Weg zur Klimarettung oder politisch riskant?
Creators: name: Wolfsteiner, Andreas
Publisher: name: Zenodo
Year: 2023
Subjects: Klimapolitik
Klimaschutzinstrumente
CO2-Preis
Klimadividende
EU-ETS
BEHG
nEHS
ETS 2
CO2-Abgabe
CO2-Steuer
Emissionshandel
Energiegeld
Klimageld
Klimaprämie
fee and dividend
cap and dividend

description: Thesen Diskussionspapier: Eine CO2-Bepreisung als zentrales Instrument, um den Dekarbonisierungsprozess und die Einhaltung der Reduktionsziele zu steuern, wäre äußerst hilfreich. Durch eine Pro-Kopf-Ausschüttung der gesamten Einnahmen aus einer CO2-Bepreisung und weiterer zielgenauer sozialpolitischer Maßnahmen kann eine wirksame CO2-Bepreisung auch politisch zu einem Erfolgsmodell werden. Für Unternehmen, die dies benötigen, muss ein funktionierender Carbon-Leakage-Schutz bestehen. Bestimmte industrielle Prozesse, wie z.B. die Stahlproduktion, müssen gesondert betrachtet werden. ► ein wirksamer CO2-Preis mit vollständiger Klimadividende kann der Game-Changer schlechthin sein
A Slightly Less Archaeological Day Than Usual
Creators: name: Constable, Chris
Publisher: name: Archaeology Data Service
Year: 2012

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Efficient numerical methods for computing ground states and dynamics of dipolar Bose-Einstein condensates
Creators: name: Bao, Weizhua
name: Cai, Yongyong
name: Wang, Hanquan
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: New efficient and accurate numerical methods are proposed to compute ground states and dynamics of dipolar Bose-Einstein condensates (BECs) described by a three-dimensional (3D) Gross-Pitaevskii equation (GPE) with a dipolar interaction potential. Due to the high singularity in the dipolar interaction potential, it brings significant difficulties in mathematical analysis and numerical simulations of dipolar BECs. In this paper, by decoupling the two-body dipolar interaction potential into short-range (or local) and long-range interactions (or repulsive and attractive interactions), the GPE for dipolar BECs is reformulated as a Gross-Pitaevskii-Poisson type system. Based on this new mathematical formulation, we prove rigorously existence and uniqueness as well as nonexistence of the ground states, and discuss the existence of global weak solution and finite time blowup of the dynamics in different parameter regimes of dipolar BECs. In addition, a backward Euler sine pseudospectral method is presented for computing the ground states and a time-splitting sine pseudospectral method is proposed for computing the dynamics of dipolar BECs. Due to the adaption of new mathematical formulation, our new numerical methods avoid evaluating integrals with high singularity and thus they are more efficient and accurate than those numerical methods currently used in the literatures for solving the problem. Extensive numerical examples in 3D are reported to demonstrate the efficiency and accuracy of our new numerical methods for computing the ground states and dynamics of dipolar BECs.
Electron tunneling into a quantum wire in the Fabry-Perot regime
Creators: name: Pugnetti, Stefano
name: Dolcini, Fabrizio
name: Bercioux, Dario
name: Grabert, Hermann
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study a gated quantum wire contacted to source and drain electrodes in the Fabry-Perot regime. The wire is also coupled to a third terminal (tip), and we allow for an asymmetry of the tip tunneling amplitudes of right and left moving electrons. We analyze configurations where the tip acts as an electron injector or as a voltage-probe, and show that the transport properties of this three-terminal set-up exhibit very rich physical behavior. For a non-interacting wire we find that a tip in the voltage-probe configuration affects the source-drain transport in different ways, namely by suppressing the conductance, by modulating the Fabry-Perot oscillations, and by reducing their visibility. The combined effect of electron electron interaction and finite length of the wire, accounted for by the inhomogeneous Luttinger liquid model, leads to significantly modified predictions as compared to models based on infinite wires. We show that when the tip injects electrons asymmetrically the charge fractionalization induced by interaction cannot be inferred from the asymmetry of the currents flowing in source and drain. Nevertheless interaction effects are visible as oscillations in the non-linear tip-source and tip-drain conductances. Important differences with respect to a two-terminal set-up emerge, suggesting new strategies for the experimental investigation of Luttinger liquid behavior.
description: 27 pages, 10 figures
Modulations in Multi-Periodic Blue Variables in the LMC
Creators: name: Buchler, J. Robert
name: Wood, Peter R.
name: Wilson, R. E.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: As shown by Mennickent, et al(2003), a subset of the blue variable stars in the Large Magellanic Cloud exhibit brightness variability of small amplitude in the period range 2.4 to 16 days as well as larger amplitude variability with periods of 140 to 600 days, with a remarkably tight relation between the long and the short periods. Our re-examination of these objects has led to the discovery of additional variability. The Fourier spectra of 11 of their 30 objects have 3 or 4 peaks above the noise level and a linear relation of the form f_a = 2(f_b - f_L) among three of the frequencies. An explanation of this relation requires an interplay between the binary motion and that of a third object. The two frequency relations together with the Fourier amplitude ratios pose a challenging modeling problem.
description: 4 pages, 3 figures, Astrophysical Journal (in press)
The Cog: A Medieval Chatterbox
Creators: name: Kogge, De
Publisher: name: Archaeology Data Service
Year: 2012

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
title: Иммуномодулирующие эффекты витамина D и новая коронавирусная инфекция
title: Immunomodulatory Effects of Vitamin D and Novel Coronavirus Disease
Creators: name: Кушникова, Ирина Павловна
name: Нелидова, Наталья Владимировна
Publisher: name: Издательский центр СурГУ
Year: 2021

description: Цель – осуществить обзор современной научной литературы, посвященной влиянию витамина D на иммунитет и новую коронавирусную инфекцию. Материал и методы. Проведен анализ научной литературы, представленной в базах данных PubMed, eLIBRARY и др. Глубина поиска – 10 лет. Поиск производился по следующим ключевым словам: витамин D, иммунитет, COVID-19. Результаты. Витамин D оказывает влияние на врожденный клеточный и адаптивный иммунитет. Его иммуномодулирующий эффект связан с активацией противовирусной активности, влиянием на дифференцировку Т-лимфоцитов и снижением синтеза провоспалительных цитокинов. Дефицит витамина D сопровождается снижением резистентности организма к бактериальным и вирусным заболеваниям, в том числе к новой коронавирусной инфекции. В качестве одного из перспективных направлений в профилактике и лечении COVID-19 можно рассматривать прием витамина D, который поддерживает противовирусный иммунитет и способен ослаблять «цитокиновый шторм».
description: The study aims to review the current evidence of the effects of vitamin D on immunity and coronavirus disease
2019 (COVID-19). Material and methods. The analysis of scientific literature sources in the databases PubMed,
eLIBRARY.RU, etc. is made. The keywords used are vitamin D, immunity, and COVID-19. Results. Vitamin D affects
innate cellular and acquired immunity. Its immunomodulatory effect is associated with the activation of antiviral
activity, the influence on the differentiation of T-lymphocytes, and a decrease in the synthesis of pro-inflammatory
cytokines. Research confirms a clear link between low vitamin D levels and a range of infectious diseases, including
severity and mortality from the COVID-19. One of the promising areas in the prevention and treatment of COVID-19
can be the administration of vitamin D, which supports antiviral immunity and reduces the effects of the cytokine
storm.
How a Research Project Happens (My Perspective)
Creators: name: Daggett, Adrianne
Publisher: name: Archaeology Data Service
Year: 2012

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
A Lego Colosseum and Other Stories
Creators: name: Barker, Craig
Publisher: name: Archaeology Data Service
Year: 2012

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Supplementary information from Evolutionary mode for the functional preservation of fast-evolving Drosophila telomere capping proteins
Creators: name: Vedelek, Balázs
name: Kovács, Ákos
name: Boros, Imre M.
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Biochemistry
subject: Molecular Biology
subject: 60102 Bioinformatics
subject: FOS: Computer and information sciences

description: Document contains supplementary figures and tables
Lévy flights of photons in hot atomic vapours
Creators: name: Mercadier, Nicolas
name: Guerin, William
name: Chevrollier, Martine
name: Kaiser, Robin
Publisher: name: arXiv
Year: 2009
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Properties of random and fluctuating systems are often studied through the use of Gaussian distributions. However, in a number of situations, rare events have drastic consequences, which can not be explained by Gaussian statistics. Considerable efforts have thus been devoted to the study of non Gaussian fluctuations such as Lévy statistics, generalizing the standard description of random walks. Unfortunately only macroscopic signatures, obtained by averaging over many random steps, are usually observed in physical systems. We present experimental results investigating the elementary process of anomalous diffusion of photons in hot atomic vapours. We measure the step size distribution of the random walk and show that it follows a power law characteristic of Lévy flights.
description: This final version is identical to the one published in Nature Physics
A Day in the Life of a Curator & PhD Student From Down Under
Creators: name: Pitkin, Melanie
Publisher: name: Archaeology Data Service
Year: 2012

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
An Archaeologist on Holiday
Creators: name: Flatman, Joe
Publisher: name: Archaeology Data Service
Year: 2012

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
A Day in the Life of Tuzusai
Creators: name: Chang, Claudia
Publisher: name: Archaeology Data Service
Year: 2012

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Ambient metrics for $n$-dimensional $pp$-waves
Creators: name: Leistner, Thomas
name: Nurowski, Pawel
Publisher: name: arXiv
Year: 2008
Subjects: subject: Differential Geometry (math.DG)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 53C50, 53A30, 83C35, 81E30

description: We provide an explicit formula for the Fefferman-Graham-ambient metric of an $n$-dimensional conformal $pp$-wave in those cases where it exists. In even dimensions we calculate the obstruction explicitly. Furthermore, we describe all 4-dimensional $pp$-waves that are Bach-flat, and give a large class of Bach-flat examples which are conformally Cotton-flat, but not conformally Einstein. Finally, as an application, we use the obtained ambient metric to show that even-dimensional $pp$-waves have vanishing critical $Q$-curvature.
description: 17 pages, in v2 footnote and references added and typos corrected, in v3 remark in the Introduction about Brinkmann's results corrected and footnote added