cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Climate Mobility and Development Cooperation
Creators: name: Stojanov, Robert
name: Rosengaertner, Sarah
name: De Sherbinin, Alexander M.
name: Nawrotzki, Raphael
Publisher: name: Columbia University
Year: 2021
Subjects: Climatic changes
Emigration and immigration
Sustainable development--Decision making
Sustainable development--International cooperation

description: Development cooperation actors have been addressing climate change as a cross-cutting issue and investing in climate adaptation projects since the early 2000s. More recently, as concern has risen about the potential impacts of climate variability and change on human mobility, development cooperation actors have begun to design projects that intentionally address the drivers of migration, including climate impacts on livelihoods. However, to date, we know little about the development cooperation’s role and function in responding to climate related mobility and migration. As such, the main aim of this paper is to outline the policy frameworks and approaches shaping development cooperation actors’ engagement and to identify areas for further exploration and investment. First, we frame the concept of climate mobility and migration and discuss some applicable policy frameworks that govern the issue from various perspectives; secondly, we review the toolbox of approaches that development cooperation actors bring to climate mobility; and third, we discuss the implications of the current Covid-19 pandemic and identify avenues for the way forward. We conclude that ensuring safe and orderly mobility and the decent reception and long-term inclusion of migrants and displaced persons under conditions of more severe climate hazards, and in the context of rising nationalism and xenophobia, poses significant challenges. Integrated approaches across multiple policy sectors and levels of governance are needed. In addition to resources, development cooperation actors can bring data to help empower the most affected communities and regions and leverage their convening power to foster more coordinated approaches within and across countries.
Ernst Wahle. Zum fünfundsiebzigsten Geburtstag am 25. Mai 1964
Creators: name: Redaktion, Die
Publisher: name: Verlag des Römisch-Germanischen Zentralmuseums Mainz
Year: 2017

description: [nicht vorhanden / not available]
description: Jahrbuch des Römisch-Germanischen Zentralmuseums Mainz, Bd. 11 (1964)
Lifetimes of atoms trapped in an optical lattice in proximity of a surface
Creators: name: Pelisson, Sophie
name: Messina, Riccardo
name: Angonin, Marie-Christine
name: Wolf, Peter
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We study the lifetime of an atom trapped in an optical vertical lattice in proximity of a massive surface using a complex scaling approach. We analyze how the presence of the surface modifies the known lifetimes of Wannier-Stark states associated to Landau-Zener tunnelling. We also investigate how the existence of a hypothetical short-distance deviation from Newton's gravitational law could affect these lifetimes. Our study is relevant in order to discuss the feasibility of any atomic- interferometry experiment performed near a surface. Finally, the difficulties encountered in applying the complex-scaling approach to the atom-surface Casimir-Polder interaction are addressed.
description: 10 pages, 8 figures
Efficient Encodings of the Travelling Salesperson Problem for Variational Quantum Algorithms
Creators: name: Schnaus, Manuel
name: Palackal, Lilly
name: Poggel, Benedikt
name: Runge, Xiomara
name: Ehm, Hans
name: Lorenz, Jeanette Miriam
name: Mendl, Christian B.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Routing problems are a common optimization problem in industrial applications, which occur on a large scale in supply chain planning. Due to classical limitations for solving NP-hard problems, quantum computing hopes to improve upon speed or solution quality. Several suggestions have been made for encodings of routing problems to solve them with variational quantum algorithms. However, for an end user it is hard to decide a priori which encoding will give the best solutions according to their needs. In this work, we investigate different encodings for the Travelling Salesperson Problem. We compare their scaling and performance when using the Quantum Approximate Optimization Algorithm and the Variational Quantum Eigensolver and provide a clear guide for users when to choose which encoding. For small instances, we find evidence that the permutation encoding can yield good results since it does not suffer from feasibility issues.
description: Accepted at IEEE QSW 2024
Networked Education Systems and the Flow of PISA-Induced References
Creators: name: Kessler, Erika
name: Pizmony-Levy, Oren
Publisher: name: Columbia University
Year: 2020
Subjects: Comparative education
Comparative education--Methodology
Education and state
International relations
Programme for International Student Assessment

description: International large-scale assessments (ILSAs) contribute to the internationalization of the education policymaking process. As they initiate and design education reforms, stakeholders worldwide make implicit and explicit references to the experience/achievement of foreign countries. This chapter analyzes the social structure that emerges from the flow of these references. We draw on an original dataset of texts published in newspapers in 23 countries following the release of the 2012 Programme for International Student Assessment (PISA). Using network analysis techniques, we demonstrate the centralized and hierarchical nature of the PISA-Induced Reference Societies Network (PIRS Network). Comparisons with other global networks suggest that the flow of references is closely related to cultural relations (co-membership in international governmental organizations) and to some extent to economic relations (trade import/export). We discuss these patterns and call for more research that focuses on relations between countries and their implications for education policy and practice.
Closing the stellar labels gap: Stellar label independent evidence for [$α/M$] information in Gaia BP/RP spectra
Creators: name: Laroche, Alexander
name: Speagle, Joshua S.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Data-driven models for stellar spectra which depend on stellar labels suffer from label systematics which decrease model performance: the "stellar labels gap". To close the stellar labels gap, we present a stellar label independent model for Gaia BP/RP spectra. We develop a novel implementation of a variational auto-encoder, which learns to generate an XP spectrum and accompanying 'scatter' without relying on stellar labels. We demonstrate that our model achieves competitive XP spectra reconstructions in comparison to stellar label dependent models. We find that our model learns stellar properties directly from the data itself. We then apply our model to XP/APOGEE giant stars to study the [$α$/M] information in Gaia XP. We provide strong evidence that the XP spectra contain meaningful [$α$/M] information by demonstrating that our model learns the $α$-bimodality, without relying on stellar label correlations for stars with $T_{\rm eff} <$ 5000 K, while also being sensitive to the anomalous abundances of Gaia-Enceladus stars. We publicly release our trained model, codebase and data. Importantly, our stellar label independent model can be implemented for any/all XP spectra because our model performance scales with training object density, not training label density.
description: 20 pages, 15 figures, published in ApJ. Code available at https://zenodo.org/records/14041979. Data available at https://zenodo.org/records/14041773
Investigation of blockage effects from flow about circular cylinders in a two-dimensional wind tunnel
Creators: name: Schmidt, Louis Vincent
Publisher: name: California Institute of Technology
Year: 1950
Subjects: Aeronautics

description: In these investigations a study of the blockage effects encountered in wind tunnel testing was made. Emphasis was placed on obtaining perceptible values of wake blockage in order to check the reliability
of approximate derivations that are based on the assumption of small wakes. A bluff body (circular cylinder) was chosen for these investigations since it develops a pronounced wake. Three cylinders of varying size were employed in order to obtain a variation in the magnitudes of the blockage effects.

   The combined influence of surface irregularities such as static pressure orifices and the vertical walls resulted in the flow over the cylinders exhibiting three-dimensional characteristics. An investigation of these effects was conducted in order to determine means of circumventing three-dimensional characteristics. Two-dimensional flow characteristics were realized after the point of flow separation on the aft portion of the cylinder was made uniform in the spanwise direction. This was accomplished by means of separation strips fastened to the cylinder forward of the point of maximum thickness.

   After the realization of two-dimensional flow characteristics in the test section, the original purpose of the test was carried out to a limited extent. Experimental measurements of wake blockage effects were compared with the predicted values that are based on approximate derivations for cases where comparison could be made.
The Shear Deformation Zone and the Smoothing of Faults With Displacement
Creators: name: Perrin, Clément
name: Waldhauser, Felix
name: Scholz, Christopher H.
Publisher: name: Columbia University
Year: 2021
Subjects: Earthquakes
Faults (Geology)
Strike-slip faults (Geology)
Seismology
Geology, Structural

description: We use high-resolution earthquake locations to characterize the three-dimensional structure of active faults in California and how it evolves with fault structural maturity. We investigate the distribution of aftershocks of several recent large earthquakes that occurred on continental strike slip faults of various structural maturity (i.e. various cumulative fault displacement, length, initiation age and slip rate). Aftershocks define a tabular zone of shear deformation surrounding the mainshock rupture plane. Comparing this to geological observations, we conclude that this results from the re-activation of secondary faults. We observe a rapid fall off of the number of aftershocks at a distance range of 0.06-0.22 km from the main fault surface of mature faults, and 0.6-1.0 km from the fault surface of immature faults. The total width of the active shear deformation zone surrounding the main fault plane reaches 1.0-2.5 km and 6-9 km for mature and immature faults, respectively. We find that the width of the shear deformation zone decreases as a power law with cumulative fault displacement. Comparing with a dynamic rough fault model, we infer that the narrowing of the shear deformation zone agrees quantitatively with earlier estimates of the smoothing of faults with displacement, both of which are aspects of fault wear. We find that earthquake stress drop decreases with fault displacement and hence with increased smoothness and/ or slip rate. This may result from fault healing or the effect of roughness on friction.
Theoretical study of CH3Cl-N2 line shapes in the ν1 band. Line mixing effects in QR doublets and QQk sub-branches
Creators: name: Ma, Qiancheng
name: Boulet, Christian
Publisher: name: Columbia University
Year: 2021
Subjects: Spectrum analysis
Spectral line formation
Chemistry, Physical and theoretical
Methyl chloride

description: Line coupling and line mixing effects of CH3Cl lines in the v1 band perturbed by N2 have been investigated. We have taken into account the non-diagonality of the exp(-S2) operator within specified line spaces as well as the k-degeneracy of the transitions (due to the double degeneracy of the j,k levels with k does not equal to 0). These transitions should be considered as doublets coupled by the line mixing process. A new problem appears in the calculation when the atom-atom potential model is introduced. In order to overcome this difficulty, a pragmatic approach is proposed. Comparisons of theoretically calculated matrix elements of W with measurements of QR(j,k) doublets as well as some QQk sub-branches, which are strongly affected by line mixing, have been made. The results show that the formalism improved in this way leads to rather accurate predictions.
The geology of a part of the Ravenna Quadrangle, California
Creators: name: Agnew, Haddon Wilson
Publisher: name: California Institute of Technology
Year: 1948
Subjects: subject: quartz diorite
subject: Santa Clara River
subject: Ventura Basin
subject: Geology
subject: FOS: Earth and related environmental sciences
subject: basement complex
subject: Ravenna Quadrangle

description: The Ravenna quadrangle includes the easternmost part
of the Ventura Basin in Los Angeles County, California and
together with adjoining quadrangles constitutes an area of
which little or no detailed geological work has been published. Ravenna station is situated on the Southern Pacific Railway and the present work involved the investigation of an area or about five square miles surrounding Ravenna and extending about two miles north and the same distance west of the station while at the same time including a narrow strip to the south of and paralleling the Santa Clara River. The area is readily accessible over excellent motor roads from the city of Los Angeles which lies forty to fifty miles to the southwest.
Branch roads, in less excellent state of repair, lead from the main highways into the area, relatively little of
which cannot be reached by automobile.

The object of the present work was to obtain as much
information as possible concerning the geological relations
or a series of interbedded conglomerates and volcanic flows
while at the same time to contribute towards the completion
of a detailed study of the entire Ravenna and adjoining quadrangles.

Problems requiring solution involved principally the
origin of the deposits, their geological relationships to each other, their structural features and their respective ages. All these problems have been attacked but their solution has been met with only varying degrees of success.

The field work upon which this report is based was
carried on from March to June, 1946. A total of eighteen days was spent in the field during that period. The work was
carried out by plotting the geology directly on field maps
supplied by the California Institute of Technology. These maps had been enlarged to twice the scale from United States Topographical maps published on a scale of 2000 feet to 1 inch.

Rock samples were collected and their locations plotted
on the map then a megascopic examination was made in the
office. No microscopic examinations were made so that the only descriptions included in this report are megascopic with the exception or certain references where noted.
Problems in effusion
Creators: name: Stockmair, Wilfried
Publisher: name: California Institute of Technology
Year: 1959
Subjects: Aeronautics

description: The flow of rarefied gases from a vessel through an orifice into vacuum is studied here.  Special conditions of this study are that the mean free path of the molecules is of the same order of magnitude as the hole diameter; furthermore the thickness of the wall is neglected.  Knudsen [1,2] investigated this effusion problem for constant conditions throughout the gas, assuming Maxwellian velocity distribution and very large mean free paths. In the present study the influence of a one-dimensional temperature gradient extending from the wall upstream into the gas is investigated. Formulae for the massflux and the spatial intensity distribution of the outflowing molecules are calculated for steady flow conditions.  Finally the behavior corresponding to a nonstationary temperature gradient (according to suddenly heated or cooled wall) is studied.
An investigation of the system Cr(III)/Cr(II) by digital polarography, at dirrerent Cr(III) concentrations, at varying pH, and in different supporting electrolytes
Creators: name: Rathjen, Nancy
Publisher: name: California Institute of Technology
Year: 1969
Subjects: Chemistry

description: One of the implications of Marcus theory of electron transfer is that d, the electrochemical transfer coefficient, would not be constant, but would be a function of potential. Recent work has tended to confirm this implication.

To examine this possible potential-dependence d, the system Cr(III)/Cr(II) was investigated by digital polarography, at different Cr(III) concentrations, at varying pH, and in different supporting electrolytes. Most of the resulting rate data do suggest a potential-dependence of d.

Apparent heats of activation were obtained for three of the supporting electrolytes investigated, and from these a calculation was made of the magnitude of the potential-dependence predicted by Marcus theory. There was little correlation between the magnitude of the potential-dependence predicted by Marcus theory, and that actually found.
Die Archäologie im Geschichtsbild der Gegenwart. Gedanken zu repräsentativen Stimmen der Zeit
Creators: name: Kirchner, Horst
Publisher: name: Verlag des Römisch-Germanischen Zentralmuseums Mainz
Year: 2017
Subjects: Wissenschaftsgeschichte

description: [nicht vorhanden / not available]
description: Jahrbuch des Römisch-Germanischen Zentralmuseums Mainz, Bd. 11 (1964)
After the Facts – These Edits Are My Thoughts
Creators: name: Pearlman, Karen
name: Gaines, Jane
Publisher: name: Columbia University
Year: 2020
Subjects: Women in the motion picture industry
Motion pictures
Silent films

description: Film industries have, historically, poor records of opportunities and recognition of women. This lack of gender parity in screen industries is paralleled in the lack of studies of women filmmakers. There is, compared to the resources available on men, little written about the ways that women filmmakers have been influential on film form, and the ways their work informs film theory. For example, there are numerous books in English on male filmmakers of the Soviet Montage period Sergei Eisenstein and Dziga Vertov, but none to date on their colleague, teacher, and mentor, the highly innovative woman filmmaker, Esfir Shub. Wright (2009) proposes that a corrective to the analytic frameworks that efface women would be a “paradigm shift away from authorship and textual analysis and a move toward analysing industry practices and cultures of film and media production” (10). This video essay, After the Facts, aims to instantiate that shift. The underlying research project of After the Facts is inquiring into creative practice, distributed cognition, and feminist film histories. The research methodology involves both embodied creative practice and analysis of cognitive actions occurring in practices. These analyses demonstrate that filmmaking creativity is an instance of distributed cognition (see Pearlman 2018; Pearlman, MacKay and Sutton 2018).
Zur stratigraphischen Stellung des Homo heidelbergensis
Creators: name: Müller-Beck, Hansjürgen
Publisher: name: Verlag des Römisch-Germanischen Zentralmuseums Mainz
Year: 2017
Subjects: Paläolithikum; Altpaläolithikum; Deutschland; Baden-Württemberg; Mauer bei Heidelberg; Menschenknochen; Anthropologie; Geologie; Evolution

description: [nicht vorhanden / not available]
description: Jahrbuch des Römisch-Germanischen Zentralmuseums Mainz, Bd. 11 (1964)
Five Years After the Adoption of the Paris Agreement, Are Climate Change Considerations Reflected in Mining Contracts?
Creators: name: Mebratu-Tsegaye, Tehtena
name: Toledano, Perrine
name: Brauch, Martin Dietrich
name: Greenberg, Mara
Publisher: name: Columbia University
Year: 2021
Subjects: Climatic changes--Risk management
Sustainable development
Mining engineering
Mining law

description: Domestic laws are the ideal legal instrument to regulate the mining sector’s contribution to climate change mitigation and adaptation. Even so, as a stop-gap-measure, governments may consider updating model mining development agreements (MMDAs) or negotiating climate­-related contractual provisions. This CCSI paper explores whether governments are using, and how they can use, investor–state mining contracts to advance climate goals. We synthesize our findings and recommendations for six categories of provisions: integrating renewable energy into mining products, reducing deforestation, requiring a climate risk assessment and community vulnerability assessment, regulating water use, requiring tailings dam design justifications, and integrating climate risks into closure plans.
Übergangslektüre(n) – Die Apostelgeschichte des Lukas
Creators: name: Schmude, Michael P.
Publisher: name: Pegasus-Onlinezeitschrift
Year: 2017

description: Nach Abschluss der Spracherlernungsphase erleben Latein- wie Griechischlehrer immer wieder, dass Schüler, welche in den Lektionen des jeweiligen Lehrwerks alle sprachlichen Hürden des Griechischen brav und tapfer genommen haben, nun vor den Originaltexten wie vor unüberwindlichen Hindernissen stehen – der bekannte „Lektüre-Schock“. Hier bedarf es eines Angebotes von Lektüren, welche von ihrer sprachlichen Gestalt (bei Vollständigkeit der Phänomene) und einem ‚greifbaren’ Inhalt her die Übergangsschwierigkeiten zwischen Lehrbuchtext und Original zumindest spürbar entschärfen. Als eine – wie stets von mehreren – Möglichkeit(en) in ebendiesem Sinne hat sich nach Erfahrungen von Michael P. Schmude die Apostelgeschichte des Lukas gezeigt, die im Lektürekanon des schulischen Unterricht ansonsten eher eine Nebenrolle spielt, im vorliegenden Artikel aber im Mittelpunkt stehen soll.
description: Pegasus-Onlinezeitschrift, Bd. 8, Nr. 1 (2008): Pegasus-Onlinezeitschrift
Responsible Coffee Sourcing: Towards a Living Income for Producers
Creators: name: Cordes, Kaitlin Y.
name: Sagan, Margaret
name: Kennedy, Solina
Publisher: name: Columbia University
Year: 2021
Subjects: Sustainable agriculture
Coffee
Coffee growers
Coffee industry
Rubiaceae

description: Coffee, one of the world’s most popular beverages, provides livelihoods for at least 60 million people across dozens of countries. Promoting the long-term health, wellbeing, and environmental sustainability of the much beloved coffee sector should be a clear priority. CCSI has continued its work on coffee sustainability with this 2021 report: “Responsible Coffee Sourcing: Towards a Living Income for Producers.” This report focuses on a critical but under-examined topic: the impact of coffee company sourcing practices on coffee producer and farmworker well-being. The report, commissioned by a long-term investment manager, analyzes the sourcing practices of ten large coffee roasters and retailers, and finds that all of them could do more--and some of them must do much more—to improve producer and worker prosperity. The report also provides analysis on the gap between coffee incomes and living incomes in ten of the largest coffee-producing countries, shedding new light on how deep those gaps are. This 2021 report offers a complementary path to the suggestions provided in CCSI’s 2019 report on the economic viability and sustainability of coffee production. That report was written in response to the sustained decline in world coffee prices. While many consumers willingly pay high prices for coffee, coffee farmers receive a tiny fraction of the final retail price. Producers are price-takers in a global market that has turned against them. These sustained low prices hurt even more as coffee producers begin to bear the brunt of climate change.
Explicit harmonic and spectral analysis in Bianchi I-VII type cosmologies
Creators: name: Avetisyan, Zhirayr
name: Verch, Rainer
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The solvable Bianchi I-VII groups which arise as homogeneity groups in cosmological models are analyzed in a uniform manner. The dual spaces (the equivalence classes of unitary irreducible representations) of these groups are computed explicitly. It is shown how parameterizations of the dual spaces can be chosen to obtain explicit Plancherel formulas. The Laplace operator $Δ$ arising from an arbitrary left invariant Riemannian metric on the group is considered, and its spectrum and eigenfunctions are given explicitly in terms of that metric. The spectral Fourier transform is given by means of the eigenfunction expansion of $Δ$. The adjoint action of the group automorphisms on the dual spaces is considered. It is shown that Bianchi I-VII type cosmological spacetimes are well suited for mode decomposition. The example of the mode decomposed Klein-Gordon field on these spacetimes is demonstrated as an application.
description: References added and some changes in the introduction. This new version appears in Classical and Quantum Gravity
Media Kit
Creators: name: Icons
Publisher: name: Zenodo
Year: 2019
Subjects: Energy and materials flexibility
Energy management
Sustainable planning
Energy efficiency
Waste heat recovery
Valorisation
Monitoring systems
Energy intensive industry
Energy and resource flexibility in highly energy intensive industries

description: Info-packs describing the BAMBOO solutions and methods in a synthetic and focussed way with the use of more
 appealing graphical elements will be produced on different topics tailoring the communication to the specific target
 groups. They will be distributed to registered web users, circulated through the partners’ channels, sent out to key
 associations and promoted via social media
The geology of the Jurupa Mountains, San Bernardino and Riverside Counties, California
Creators: name: MacKevett, Edward M.
Publisher: name: California Institute of Technology
Year: 1950
Subjects: subject: quartzite
subject: gneiss
subject: alluvium
subject: schist
subject: Jurupa Mountains
subject: Geology
subject: FOS: Earth and related environmental sciences
subject: Perris Fault
subject: Bonsall tonalite

description: The Jurupa Mountains are in the western parts of San Bernardino and Riverside Counties, California. The geographical center of the Jurupa Mountains is about 44 miles east of Los Angeles and 7 miles northwest of Riverside. This report describes an area of approximately 15 square miles.

Crystalline rocks comprise the bulk of the Jurupa Mountains and probably are the northernmost exposures of the rocks typical of the Southern California batholith. The oldest rooks in the Jurupa Mountains are a series of pre-batholithic metasedimentary rooks which are questionably Triassic in age. This series is composed of quartz-biotite gneiss, impure quartzite, biotite-quartz schist, marble, calc-silicate  contact rocks, and amphibole schist, listed in order of abundance. Characteristically, these rocks occur as septa between the intrusive plutons. The largest deposits of marble and contact rocks are at Jensen quarry, a locality renowned for its rare minerals. San Marcos gabbro occurs in a few hornblende-rich island like bodies within the later intrusive looks, and it is the oldest of the batholithic rocks. Bonsall tonalite is the most widespread rock in the Jurupa Mountains. It contains abundant inclusions near its contacts, and commonly has good foliation and lineation. The Woodson Mountain  granodiorite is a leucocratic rock that has several textural variations. It generally crops out in large boulder-like masses and is one of the most erosion-resistant rocks in the area. Pegmatite dikes are abundant in the Jurupa Mountains and are characterized by bold, rib-like outcrops.  Alluvium, mainly in the form of fan material that is locally overlain by aeolian sand, practically surrounds the Jurupa Mountains.

The Jurupa Mountains are in the northern part of the Perris fault block. No definitely-known faults occur in the Jurupa Mountains. The batholithic rocks of the Jurupa Mountains were probably emplaced as a sequence of plutons by a combination of processes of which stoping was the most important.

The economic resources of the Jurupa Mountains are marble, for making cement, and granodiorite and tonalite, mainly for rip-rap.  In addition, several abandoned gold prospects are present. Most of these are on quartz stringers within the gneiss or schist.
Wall Crossing and the Fourier-Mukai Transform for Grassmann Flops
Creators: name: Priddis, Nathan
name: Shoemaker, Mark
name: Wen, Yaoxiong
Publisher: name: arXiv
Year: 2024
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14N35, 14E16, 53D45

description: We prove the crepant transformation conjecture for relative Grassmann flops over a smooth base $B$. We show that the $I$-functions of the respective GIT quotients are related by analytic continuation and a symplectic transformation. We verify that the symplectic transformation is compatible with Iritani's integral structure, that is, that it is induced by a Fourier-Mukai transform in $K$-theory.
In-situ electron-beam lithography of deterministic single-quantum-dot mesa-structures using low-temperature cathodoluminescence spectroscopy
Creators: name: Gschrey, M.
name: Gericke, F.
name: Schüßler, A.
name: Schmidt, R.
name: Schulze, J. -H.
name: Heindel, T.
name: Rodt, S.
name: Strittmatter, A.
name: Reitzenstein, S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report on the deterministic fabrication of sub-um mesa structures containing single quantum dots by in-situ electron-beam lithography. The fabrication method is based on a two-step lithography process using a low-temperature cathodoluminescence (CL) spectroscopy setup. In the first step the position and spectral features of single InGaAs quantum dots (QDs) are detected by CL. Then circular sub-um mesa-structures are exactly defined by high-resolution electron-beam lithography and subsequent etching in the second step. CL spectroscopy and micro-photoluminscence spectroscopy demonstrate the high optical quality of the single-QD mesa-structures with emission linewidths below 15 ueV and g(2)(0) = 0.04. Our lithography method allows for an alignment precision better than 100 nm which paves the way for a fully-deterministic device technology using in-situ CL lithography.
description: 4 pages, 4 figures
Coexistence and Survival in Conservative Lotka-Volterra Networks
Creators: name: Knebel, Johannes
name: Krüger, Torben
name: Weber, Markus F.
name: Frey, Erwin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Analyzing coexistence and survival scenarios of Lotka-Volterra (LV) networks in which the total biomass is conserved is of vital importance for the characterization of long-term dynamics of ecological communities. Here, we introduce a classification scheme for coexistence scenarios in these conservative LV models and quantify the extinction process by employing the Pfaffian of the network's interaction matrix. We illustrate our findings on global stability properties for general systems of four and five species and find a generalized scaling law for the extinction time.
description: 5 pages, 3 figures
title: Determining the stress state of a layer on a rigid base weakened by several longitudinal cylindrical cavities
Creators: name: Miroshnikov, V.Yu.
name: Protsenko, V.S.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: The spatial problem of the theory of elasticity is solved for a layer with several infinite cylindrical cavities disjoint to each other and the surface of the layer. Stress values are preset for the cavities and for the upper boundary of the layer; displacements are preset on the lower boundary of the layer. The problem is solved using the generalized Fourier method with respect to the system of Lame’s equations. If the boundary conditions are satisfied, we are led to infinite systems of linear algebraic equations that are solved by the reduction method. As a result, values of displacements and stresses at various points of the elastic layer are obtained. A computational investigation is carried out for a concrete layer adhered to a rigid base and weakened by two unloaded cavities. A normal stress value is preset on the upper boundary of the layer. The analysis of the stress-strain state of the layer in the vicinity of the load application, as well as in the vicinity of the left cavity located closer to the load, is carried out. It is compared to the option when the second cavity is absent. The proposed method can be used to calculate structures and parts with similar design models, and the stress state analysis can be made to select the geometric characteristics of the designed structure.
The British and German translations of Pippi Longstocking - a translational statistics analysis
Creators: name: Stuttaford, Margrethe
Publisher: name: University of Leicester
Year: 2021
Subjects: Uncategorized

description: This project examines the representation and reception of Astrid Lindgren’s first Pippi Longstocking book through its initial translations into English and German. The main corpus consists of the British translation (1954), the West German translation (1949) and the East German version (1975) of the Swedish source text (1945), which are compared with the early US translation (1950) as well as later retranslations into English (2007) and a reedition into German (2007). The project’s methodology builds on Malmkjær’s Translational Stylistics, which aims at analysing the impact of stylistic choices on processes of meaning-making in translation. The methodology is used in combination with a comparative focus on children’s literature in various cultures and on sociological frameworks to analyse the translation of Pippi Longstocking into selected target cultures. The analysis interprets the various types of changes and shifts used in the respective translations and considers both their impact on the meaning of the text and their link with literary, cultural and translational contexts and norms. The case of Pippi Longstocking is particularly relevant as Lindgren’s character has been considered as unusual and norm-breaking in the context of children’s literature. The project considers the adjustments made in the translations and the way in which these have affected the representation and reception of Pippi.
title: Improvement of schemes and modes of forging process technology
Creators: name: Gerasimova, A.A.
name: Baleeva, L.M.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: Developed on the basis of the results of experimental and industrial works, the technological scheme of production of monoblock plates with dimensions of 7600x7600x360mm from ingot 290t for subsequent stamping of the bottoms of steel 15H2NMFA. Practical execution of the developed technological process of production of bottoms from monoblock large-size plates was carried out. The basic technology of production of monoblock plates is applied in the conditions of JSC Izhorskiye Zavody.
Follow the fugitive: an application of the method of images to open dynamical systems
Creators: name: Cristadoro, Giampaolo
name: Knight, Georgie
name: Esposti, Mirko Degli
Publisher: name: arXiv
Year: 2012
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Dynamical Systems (math.DS)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Borrowing and extending the method of images we introduce a theoretical framework that greatly simplifies analytical and numerical investigations of the escape rate in open dynamical systems. As an example, we explicitly derive the exact size- and position-dependent escape rate in a Markov case for holes of finite size. Moreover, a general relation between the transfer operators of closed and corresponding open systems, together with the generating function of the probability of return to the hole is derived. This relation is then used to compute the small hole asymptotic behavior, in terms of readily calculable quantities. As an example we derive logarithmic corrections in the second order term. Being valid for Markov systems, our framework can find application in information theory, network theory, quantum Weyl law and via Ulam's method can be used as an approximation method in more general dynamical systems.
description: 9 pages, 1 figure
title: Development of a mathematical model of the turning operation of characteristic behavior of the dynamic system in deviations from the nominal mode
Creators: name: Strelyanaya, Yu.О.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: Dynamic model of the process of turning a two-component control. Developed a dynamic model of the process of turning a two-part management, taking into account the dynamic properties of the basic technology of the machining process, tool wear, and deviations form the nominal parameters allowing for the two-component control.
title: The control device of the shock stand
Creators: name: Chirov, A.N.
name: Zhumabaev, E.N.
name: Sapegin, A.M.
name: Sviridon, R.A.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: In this article we considered the relevance of the chosen topic, developed a control system for the shock stand on the basis of a linear electro-dynamic engine.
Detecting and polarizing nuclear spins with double resonance on a single electron spin
Creators: name: London, P.
name: Scheuer, J.
name: Cai, J. -M.
name: Schwarz, I.
name: Retzker, A.
name: Plenio, M. B.
name: Katagiri, M.
name: Teraji, T.
name: Koizumi, S.
name: Isoya, J.
name: Fischer, R.
name: McGuinness, L. P.
name: Naydenov, B.
name: Jelezko, F.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report the detection and polarization of nuclear spins in diamond at room temperature by using a single nitrogen-vacancy (NV) center. We use Hartmann-Hahn double resonance to coherently enhance the signal from a single nuclear spin while decoupling from the noisy spin-bath, which otherwise limits the detection sensitivity. As a proof-of-principle we: (I) observe coherent oscillations between the NV center and a weakly coupled nuclear spin, (II) demonstrate nuclear bath cooling which prolongs the coherence time of the NV sensor by more than a factor of five. Our results provide a route to nanometer scale magnetic resonance imaging, and novel quantum information processing protocols.
Hamiltonian simulation of minimal holographic sparsified SYK model
Creators: name: Jha, Raghav G.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The circuit complexity for Hamiltonian simulation of the sparsified SYK model with $N$ Majorana fermions and $q=4$ (quartic interactions) which retains holographic features (referred to as `minimal holographic sparsified SYK') with $k\ll N^{3}/24$ (where $k$ is the total number of interaction terms times 1/$N$) using second-order Trotter method and Jordan-Wigner encoding is found to be $\widetilde{\mathcal{O}}(k^{p}N^{3/2} \log N (\mathcal{J}t)^{3/2}\varepsilon^{-1/2})$ where $t$ is the simulation time, $\varepsilon$ is the desired error in the implementation of the unitary $U = \exp(-iHt)$, $\mathcal{J}$ is the disorder strength, and $p < 1$. This complexity implies that with less than a hundred logical qubits and about $10^{6}$ gates, it will be possible to achieve an advantage in this model and simulate real-time dynamics up to scrambling time.
description: v3: Matches the one accepted for publication in Nuclear Physics B. v2: Gate costs for up to 125 qubit-Hamiltonian i.e., N=250. Added few references, refined text. v1: Comments welcome
Deconstructing the clothing design process for a circular economy
Creators: name: Karell, Essi
name: Niinimäki, Kirsi
Publisher: name: Technische Universität Berlin
Year: 2021
Subjects: subject: 500 Naturwissenschaften und Mathematik
subject: 600 Technik, Technologie
subject: 300 Sozialwissenschaften
subject: circular economy
subject: clothing design
subject: design practice
subject: design process

description: The transition from linear to circular fashion system(s) requires substantial changes at the level of legislation, infrastructure, technology, education, business and consumption. This exploratory study zooms into the business level, specifically into sustainable-minded clothing companies and their design practices. What happens in practice inside these companies and what are designers’ current concerns when aiming for sustainability and circularity in the clothing industry? Semi-structured expert interviews were conducted with five clothing designers. Findings of the study show that designers are not much acquainted with the existing sustainable/circular design strategies, tools and guidelines. Strong focus is still on material selection and clothing longevity. Some discussions also link to the use phase of garments and especially reuse. It is obvious that designers need more applied knowledge to support their design practice if aiming for a circular economy.
Die Lösung des Gordischen Knotens oder der ‚richtige‘ Einstieg in die lateinische Lektüre
Creators: name: Kötterheinrich-Wedekind, Tilmann
Publisher: name: Pegasus-Onlinezeitschrift
Year: 2017

description: [nicht vorhanden / not available]
description: Pegasus-Onlinezeitschrift, Bd. 2 (2002): Pegasus-Onlinezeitschrift
Short-range quantum magnetism of ultracold fermions in an optical lattice
Creators: name: Greif, Daniel
name: Uehlinger, Thomas
name: Jotzu, Gregor
name: Tarruell, Leticia
name: Esslinger, Tilman
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The exchange coupling between quantum mechanical spins lies at the origin of quantum magnetism. We report on the observation of nearest-neighbor magnetic spin correlations emerging in the many-body state of a thermalized Fermi gas in an optical lattice. The key to obtaining short-range magnetic order is a local redistribution of entropy within the lattice structure. This is achieved in a tunable-geometry optical lattice, which also enables the detection of the magnetic correlations. We load a low-temperature two-component Fermi gas with repulsive interactions into either a dimerized or an anisotropic simple cubic lattice. For both systems the correlations manifest as an excess number of singlets as compared to triplets consisting of two atoms with opposite spins. For the anisotropic lattice, we determine the transverse spin correlator from the singlet-triplet imbalance and observe antiferromagnetic correlations along one spatial axis. Our work paves the way for addressing open problems in quantum magnetism using ultracold fermions in optical lattices as quantum simulators.
description: 10 pages, 9 figures
Augustus im Schwarzhemd – Eine Unterrichtseinheit
Creators: name: Scriba, Friedemann
Publisher: name: Pegasus-Onlinezeitschrift
Year: 2017

description: Es ist allgemein bekannt, dass die römische Antike von den italienischen Faschisten rücksichtslos für ihre propagandistischen Zwecke missbraucht wurde. Eine besondere Rolle spielte in diesem Zusammenhang die Augusteische Zeit: Friedemann Scriba (Berlin) hat unter dem Titel „Augustus im Schwarzhemd“ eine Unterrichtseinheit entwickelt, die diesen Aspekt der Rezeptionsgeschichte in anschaulicher und zugleich eindringlicher Weise zum Gegenstand hat.
description: Pegasus-Onlinezeitschrift, Bd. 4, Nr. 2 (2004): Pegasus-Onlinezeitschrift
Relaxing the Landau-pole constraint in the NMSSM with the Abelian gauge symmetries
Creators: name: Kyae, Bumseok
name: Shin, Chang Sub
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In order to relax the Landau pole constraint on "λ", which is a coupling constant between a singlet S and the MSSM Higgs, λSh_uh_d in the next-to-MSSM (NMSSM), and also maintain the gauge coupling unification, we consider U(1) gauge extensions of the NMSSM. For relatively strong U(1) gauge interactions down to low energies, we assign U(1) charges only to the Higgs and the third family of the chiral matter among the MSSM superfields. In the U(1)_Z [U(1)_Z\times U(1)_X] extension, the low energy value of λcan be lifted up to 0.85-0.95 [0.9-1.0], depending on the employed charge normalizations, when λand the new gauge couplings are required not to blow up below the 10^{16} GeV energy scale. Introduction of extra vector-like superfields can induce the desired Yukawa couplings for the first two families of the chiral matter. We also discuss various phenomenological constraints associated with extra U(1) breaking.
description: 22 pages, 2 eps figures, version to appear in Phys. Rev. D