cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Minimal conductivity in bilayer graphene
Creators: name: Katsnelson, M. I.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Using the Landauer formula approach, it is proven that minimal conductivity of order of $e^{2}/h$ found experimentally in bilayer graphene is its intrinsic property. For the case of ideal crystals, the conductivity turns our to be equal to $e^{2}/2h$ per valley per spin. A zero-temperature shot noise in bilayer graphene is considered and the Fano factor is calculated. Its value $1-2/π$ is close to the value 1/3 found earlier for the single-layer graphene.
description: 3 pages, 1 figure
From field to fieldwork : the exhibition catalogue and art history in Australia
Creators: name: Berryman, James (Jim) Thomas
Publisher: name: Canberra, ACT : The Australian National University
Year: 2012

description: This thesis examines the transformation of the exhibition catalogue in Australia, from modest exhibition documentation to autonomous publication. This discussion is largely confined to exhibition catalogues produced by Australia's public galleries between approximately1965-2002. The thesis considers why the exhibition catalogue experienced such a dramatic change in such a relatively short period. The thesis reveals how catalogues are shaped by the internal tensions and external pressures experienced by art institutions as their roles and responsibilities change over time. During the period in question, catalogues have kept track of developments in art history by experimenting with changing curatorial fashions and critical approaches. Viewed as a time series, the exhibition catalogue reveals subtle and significant clues about art in its changing institutional setting. The thesis explores the professionalisation of the public gallery network, the nexus between academic art history and the museum, and pressures affecting the management of exhibitions in Australia. Each of these factors has influenced the development of the exhibition catalogue. It is shown how catalogues possess a multiplicity of values, which are often contradictory, and how these values determine the catalogue's practical, commemorative and informative functions. To better understand the relationship between the art museum and the contexts and discourses within which art is produced and disseminated for critical appraisal, this thesis will draw upon a body of theoretical literature broadly known as the sociology of art. The work of Pierre Bourdieu provides a general theoretical framework. Methodologically, the thesis is qualitative. The massive proliferation of exhibition catalogues in Australia since the mid-1970s has meant that the samples examined are broadly representative. In this respect, the thesis has followed the examples of earlier, though less comprehensive, studies from abroad.
»Katholische« Ökumene in den 1950er-Jahren
Creators: name: Burkard, Dominik
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 2024

description: .
description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 41 (2022): Rottenburger Jahrbuch für Kirchengeschichte, Band 41
Noise gates for decoherent quantum circuits
Creators: name: Bassi, Angelo
name: Deckert, D. -A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A major problem in exploiting microscopic systems for developing a new technology based on the principles of Quantum Information is the influence of noise which tends to work against the quantum features of such systems. It becomes then crucial to understand how noise affects the evolution of quantum circuits: several techniques have been proposed among which stochastic differential equations (SDEs) can represent a very convenient tool. We show how SDEs naturally map any Markovian noise into a linear operator, which we will call a noise gate, acting on the wave function describing the state of the circuit, and we will discuss some examples. We shall see that these gates can be manipulated like any standard quantum gate, thus simplifying in certain circumstances the task of computing the overall effect of the noise at each stage of the protocol. This approach yields equivalent results to those derived from the Lindblad equation; yet, as we show, it represents a handy and fast tool for performing computations, and moreover, it allows for fast numerical simulations and generalizations to non Markovian noise. In detail we review the depolarizing channel and the generalized amplitude damping channel in terms of this noise gate formalism and show how these techniques can be applied to any quantum circuit.
description: 10 pages, 4 figures: journal reference added + some typos corrected
The Massive Ancient Galaxies At $z>3$ NEar-infrared (MAGAZ3NE) Survey: Confirmation of Extremely Rapid Star-Formation and Quenching Timescales for Massive Galaxies in the Early Universe
Creators: name: Forrest, Ben
name: Marsan, Z. Cemile
name: Annunziatella, Marianna
name: Wilson, Gillian
name: Muzzin, Adam
name: Marchesini, Danilo
name: Cooper, M. C.
name: Chan, Jeffrey C. C.
name: McConachie, Ian
name: Gomez, Percy
name: Kado-Fong, Erin
name: La Barbera, Francesco
name: Lange-Vagle, Daniel
name: Nantais, Julie
name: Nonino, Mario
name: Saracco, Paolo
name: Stefanon, Mauro
name: van der Burg, Remco F. J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present near-infrared spectroscopic confirmations of a sample of 16 photometrically-selected galaxies with stellar masses log(M_star/M_sun) > 11 at redshift z > 3 from the XMM-VIDEO and COSMOS-UltraVISTA fields using Keck/MOSFIRE as part of the MAGAZ3NE survey. Eight of the ultra-massive galaxies (UMGs) have specific star formation rates (sSFR) < 0.03 Gyr-1, with negligible emission lines. Another seven UMGs show emission lines consistent with active galactic nuclei and/or star formation, while only one UMG has sSFR > 1 Gyr-1. Model star formation histories of these galaxies describe systems that formed the majority of their stars in vigorous bursts of several hundred Myr duration around 4 < z < 6during which hundreds to thousands of solar masses were formed per year. These formation ages of < 1 Gyr prior to observation are consistent with ages derived from measurements of Dn(4000) and EW0(Hδ). Rapid quenching followed these bursty star-forming periods, generally occurring less than 350 Myr before observation, resulting in post-starburst SEDs and spectra for half the sample. The rapid formation timescales are consistent with the extreme star formation rates observed in 4 < z < 7 dusty starbursts observed with ALMA, suggesting that such dusty galaxies are progenitors of these UMGs. While such formation histories have been suggested in previous studies, the large sample introduced here presents the most compelling evidence yet that vigorous star formation followed by rapid quenching is almost certainly the norm for high mass galaxies in the early universe. The UMGs presented here were selected to be brighter than Ks = 21.7 raising the intriguing possibility that even (fainter) older quiescent UMGs could exist at this epoch.
description: Accepted for publication in ApJ. 18 pages, 11 figures in main text
Scrap : a multi-scale approach to media design and programming workflows
Creators: name: Cobb, Jackson Daniel McFall
name: 0009-0007-2925-4011
Publisher: name: The University of Texas at Austin
Year: 2023
Subjects: Media design
Projection design
Video design
Projection programming
Video programming
Collaboration
Theatre
Theater
Design
Disguise
TouchDesigner
QLab
Watchout
Scrap

description: Theatre-makers are scrappy. They are intimately familiar with what it takes to put on a show with few resources, establishing practices that create impactful performances at every scale. Within that community, designers and technicians are creative problem solvers. The ability to use the tools of their practice to solve every production’s unique problems is their superpower. As a media designer and programmer active in the field, scrap has shaped Jackson’s practice. Their thesis explores how a mindset centering scrap benefits the production process at all scales, not just small-scale or low-budget work. Through the lens of their practice, they examine how a nimble and responsive approach translates in different spaces and how their experience as a designer impacts their approach as a programmer. This begins with a reflection on the path Jackson took to get to this stage of their career, having conducted research in the form of productions and conversations with industry professionals. Jackson presents three case studies highlighting different scales of production, analyzing how a “scrap” mindset has informed the relationship between media design and media programming in their artistic practice. Through this analysis, they highlight lessons they plan to implement going forward in their practice as a designer and programmer, centering a scrappy, nimble approach to media design and technology that can support productions of any scale.
Measurements of Polarization Dependencies in Parametric Down-Conversion of X-rays into Ultraviolet Radiation
Creators: name: Sofer, S.
name: Sefi, O.
name: Nisbet, A. G. A.
name: Shwartz, S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present measurements of the polarization dependencies of the x-ray signal photons generated by the effect of parametric down-conversion of x rays into ultraviolet radiation. The results exhibit pronounced discrepancies with the classical model for the nonlinearity but qualitatively agree with a newly developed quantum mechanical theory for the nonlinear interaction. Our work shows that the reconstruction of the atomic scale charge distribution of valence electrons in crystals by using nonlinear interaction between x rays and longer wavelength radiation, as was suggested in previous works, requires the knowledge of polarization of the generated x-ray signal beam. The results presented in this work indicate a new methodology for the study of properties of the Wannier functions in crystals.
Energy performance simulation of Australian office buildings
Creators: name: Egan, Aileen Marie
Publisher: name: The Australian National University
Year: 2012
Subjects: subject: Office buildings Energy consumption Simulation methods Australia
subject: Buildings Energy conservation Computer simulation
subject: Energy auditing Australia

description: The initial research focused on evaluation in the field of four office buildings, comparing simulated outcomes with measured performance. From this work and the review of relevant literature, a number of simulation input parameters were chosen for more detailed studies. Occupancy figures typically assumed in Australian building performance simulation were found to be much higher than those measured in the field surveys. A sensitivity analysis found that for some building and climate combinations, using unrealistically high occupancy figures gave rise to increased energy consumption, while for other combinations higher occupancy levels led to decreased energy consumption. Another component of the research included testing a number of Australian office buildings to find out what are typical values of air leakage. The range of measured values was wide. Sensitivity studies of the effects of air leakage on energy performance simulation outcomes found that, generally, increased modelled air leakage resulted in an increase in building energy consumption, although there were exceptions. Another aspect of simulation explored was the difference in modelled energy performance using a file of real time weather data instead of using the Reference Meteorological Year (RMY) weather data. Generally use of real time data produced slightly higher modelled energy consumption than use of RMY data. The research also investigated the simulation of a control strategy not accommodated by building performance simulation software. This study showed that a simple control strategy could appreciably improve modelled energy performance. Finally, the thesis includes a study of microclimate over a week of warm weather. This demonstrated that the use of a weather data file without allowance for effects of vegetation, and soil surface and water-holding capacity can be a significant source of inaccuracy in building performance simulation. A general finding of this thesis is that there are large differences between building performance as modelled in the design stage and the performance of operational buildings. All findings show that to accurately simulate buildings considerably more data is needed than currently available. In particular, more studies are needed to ascertain what are typical occupancy levels and air leakage rates of Australian office buildings. In addition, simulation software needs to provide ways of accommodating control strategies and microclimate considerations; also, the ability to use different weather data files would ensure buildings are not simply designed to suit the RMY.
The Broadcast Approach in Communication Networks
Creators: name: Tajer, Ali
name: Steiner, Avi
name: Shamai, Shlomo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This paper reviews the theoretical and practical principles of the broadcast approach to communication over state-dependent channels and networks in which the transmitters have access to only the probabilistic description of the time-varying states while remaining oblivious to their instantaneous realizations. When the temporal variations are frequent enough, an effective long-term strategy is adapting the transmission strategies to the system's ergodic behavior. However, when the variations are infrequent, their temporal average can deviate significantly from the channel's ergodic mode, rendering a lack of instantaneous performance guarantees. To circumvent a lack of short-term guarantees, the {\em broadcast approach} provides principles for designing transmission schemes that benefit from both short- and long-term performance guarantees. This paper provides an overview of how to apply the broadcast approach to various channels and network models under various operational constraints.
description: 149 pages, 37 figures
Generalized Cubic Model for BaTiO$_3$-like Ferroelectric Substance
Creators: name: Todoroki, Norikazu
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We propose an order-disorder type microscopic model for BaTiO$_3$-like Ferroelectric Substance. Our model has three phase transitions and four phases. The symmetry and directions of the polarizations of the ordered phases agree with the experimental results of BaTiO$_3$. The intermediate phases in our model are known as an incompletely ordered phase, which appears in a generalized clock model.
description: 6 pages, 4figures
Practical understanding of oxygen evolution electrocatalysis in alkaline electrolyte
Creators: name: Son, Yoon Jun
name: 0000-0003-1704-2314
Publisher: name: The University of Texas at Austin
Year: 2023
Subjects: Oxygen evolution reaction

description: The urgent need for decarbonization has spurred an increasing demand for water electrolysis and green hydrogen production. However, the high cost of current water electrolysis technologies and green hydrogen hinders their commercialization and widespread adoption. One of the major obstacles to advancing these technologies is the lack of comprehensive understanding of the oxygen evolution reaction (OER) electrocatalysis in practical conditions. The complexity of the OER process involving four performance governing factors and the dynamic transformation of catalytic electrodes makes the comprehension of OER electrocatalysis challenging. Moreover, these characteristics are significantly affected by the experimental conditions applied, further complicating our understanding. This dissertation aims to enhance the practical understanding of OER electrocatalysis in alkaline electrolyte systems, which is crucial for achieving highly efficient and cost-effective OER catalytic electrodes. We investigated the effects of cyclic voltammetry (CV) and chronopotentiometry (CP) electrochemical conditioning on Ni-based OER electrocatalysts in terms of dynamic transformation and performance governing factors. Thorough electrochemical analyses and material characterizations reveal that the in situ oxidation and Fe incorporation of OER electrocatalysts can change depending on the electrochemical conditioning method, leading to distinct material properties and altering the impact of the performance governing factors on the OER activity. We next investigated the challenges associated with the correct implementation of iR compensation for various OER catalytic electrodes. We found that the measurements of catalytic activity and redox peak properties can be influenced distinctively by specific methods and electrochemical conditions employed for iR compensation. We identified the origin of this potential pitfall and proposed a recommended procedure for accurate iR compensation. Based on our understanding of performance governing factors and dynamic transformation, we presented a strategy for designing high-performance OER catalytic electrodes with large surface areas and superb transport properties. Morphological engineering of nickel foam via electrochemical anodization was employed to create 3D hierarchical porous structures. Moreover, the influence of transport properties on OER activity under high current densities is thoroughly investigated. Altogether, our works provide valuable insights and future research directions to advance practical understanding and development of OER electrocatalysis in water electrolysis and green hydrogen production.
Werner Degenhardt / Johannes Junker, Im Zeichen des Kreuzes Christi
Creators: name: Herrmann, Gottfried
Publisher: name: Lutherische Beiträge
Year: 2024

description: Studien zum Wirken von Theodor Harms
description: Lutherische Beiträge, Bd. 28 Nr. 1 (2023): Lutherische Beiträge
See a Black Hole on a Shoestring
Creators: name: Heyl, Jeremy S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The modes of vibration of hanging and partially supported strings provide useful analogies to scalar fields travelling through spacetimes that admit conformally flat spatial sections. This wide class of spacetimes includes static, spherically symmetric spacetimes. The modes of a spacetime where the scale factor depends as a power-law on one of the coordinates provide a useful starting point and yield a new classification of these spacetimes on the basis of the shape of the string analogue. The family of corresponding strings follow a family of curves related to the cycloid, denoted here as hypercycloids (for reasons that will become apparent). Like the spacetimes that they emulate these strings exhibit horizons, typically at their bottommost points where the string tension vanishes; therefore, hanging strings may provide a new avenue for the exploration of the quantum mechanics of horizons.
description: 5 pages, 1 figure, extensive changes to refect version accepted to PRD
Daniel Bolliger, Methodus als Lebensweg bei Johann Conrad Dannhauer
Creators: name: Wenz, Armin
Publisher: name: Lutherische Beiträge
Year: 2024

description: Daniel Bolliger, Methodus als Lebensweg bei Johann Conrad Dannhauer 
description: Lutherische Beiträge, Bd. 28 Nr. 1 (2023): Lutherische Beiträge
UBVJHK synthetic photometry of Galactic O stars
Creators: name: Martins, F.
name: Plez, B.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The development of powerful infrared observational technics enables the study of very extincted objects and young embedded star forming regions. This is especially interesting in the context of massive stars which form and spend a non negligible fraction of their life still enshrouded in their parental molecular cloud. Spectrophotometric calibrations are thus necessary to constrain the physical properties of heavily extincted objects. Here, we derive UBVJHK magnitudes and bolometric corrections from a grid of atmosphere models for O stars. Bessel passbands are used. Bolometric corrections (BC) are derived as a function of Teff and are subsequently used to derive BC - spectral type (ST) and Absolute Magnitudes - ST relations. Infrared magnitudes and, for the first time, bolometric corrections are given for the full range of spectral types and luminosity classes. Infrared colors are essentially constant. Intrinsic H-K colors are 0.05 mag bluer than previously proposed. Optical calibrations are also provided and are similar to previous work, except for (B-V)0 which is found to be at minimum -0.28 for standard O stars, slightly larger (0.04 mag) than commonly accepted.
description: 10 pages, 8 figures. A&A accepted
Municipal climate action planning : barriers and best practices
Creators: name: Young, Jessica D.
name: 0009-0006-4205-8982
Publisher: name: The University of Texas at Austin
Year: 2023
Subjects: Climate
Planning
City planning
Urban planning
Resilience
Climate planning
Barriers
Climate change

description: The rapid acceleration of climate change has had devastating impacts across the globe, including a rise in the frequency and severity of extreme weather events, leading to an urgent need to mitigate greenhouse gas emissions and adapt to our future climate by creating and implementing climate action plans. Despite the need for immediate action, cities are facing barriers which limit their success in climate action planning (CAP). In this paper I explore the barriers municipalities face, and best practices for overcoming barriers in developing and implementing climate action plans. Through an extensive literature review and conducting interviews with planners in five U.S. cities (Austin, TX; San Diego, CA; Tampa, FL; Cincinnati, OH; and Washington, DC), I identified barriers to CAP, as well as best practices for overcoming barriers according to planners who have participated in the development and/or implementation of municipal climate action plans. Based on the literature and interviews I synthesized all barriers and best practices into categories (political, institutional, resources, meaningful community engagement/support, and lack of climate information) and identified corresponding best practices that would help overcome the barriers identified across the individual interviews. For over half of the barriers for which a corresponding best practice was raised the corresponding best practice was provided by a planner in a different city, indicating the potential value of identifying from the start any foreseeable barriers and best practices for overcoming them based on the experiences of planners in the implementation phase. Political support, resources, and lack of climate information were less strong barriers in practice than in the literature for these five planners, and by far the strongest barriers were institutional, followed by community engagement. The results of this study may be useful for climate planners as they begin their CAP process in order to avoid barriers and use the identified strategies to overcome them.
"Kleine Homiletik" des Allgemeinen Kirchengebetes
Creators: name: Kelter, Gert
Publisher: name: Lutherische Beiträge
Year: 2024

description: Was hat das Allgemeine Kirchengebet mit Homiletik, der Lehre der Predigt zu tun? 
description: Lutherische Beiträge, Bd. 28 Nr. 1 (2023): Lutherische Beiträge
Constraining the quasar radio-loud fraction at $z \sim 6$ with deep radio observations
Creators: name: Liu, Yuanqi
name: Wang, Ran
name: Momjian, Emmanuel
name: Banados, Eduardo
name: Zeimann, Greg
name: Willott, Chris J.
name: Matsuoka, Yoshiki
name: Omont, Alain
name: Shao, Yali
name: Li, Qiong
name: Li, Jianan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We carry out a series of deep Karl G. Jansky Very Large Array (VLA) S-band observations of a sample of 21 quasars at $z\sim6$. The new observations expand the searches of radio continuum emission to the optically faint quasar population at the highest redshift with rest-frame $4400 \rm Å$ luminosities down to $3 \times10^{11} \ L_{\odot}$. We report the detections of two new radio-loud quasars: CFHQS J2242+0334 (hereafter J2242+0334) at $z=5.88$ and CFHQS J0227$-$0605 (hereafter J0227$-$0605) at $z=6.20$, detected with 3 GHz flux densities of $87.0 \pm 6.3 \ μ\rm Jy$ and $55.4 \pm 6.7 \ μ\rm Jy$, respectively. Their radio \replaced{loudness}{loudnesses} are estimated to be $54.9 \pm 4.7$ and $16.5 \pm 3.2$, respectively. To better constrain the radio-loud fraction (RLF), we combine the new measurements with the archival VLA L-band data as well as available data from the literature, considering the upper limits for non-detections and \deleted{and} possible selection effects. The final derived RLF is $9.4 \pm 5.7\%$ for the optically selected quasars at $z\sim6$. We also compare the RLF to that of the quasar samples at low redshift and check the RLF in different quasar luminosity bins. The RLF for the optically faint objects is still poorly constrained due to the limited sample size. Our \replaced{result}{results} show no evidence of significant quasar RLF evolution with redshift. There is also no clear trend of RLF evolution with quasar UV/optical luminosity due to the limited sample size of optically faint objects with deep radio observations.
description: 14 pages, 5 figures, accepted for publication in the Astrophysical Journal
U.S. detention and deportation : the politics of invisibility, violence, and death
Creators: name: Loera Moreno, Lilia
Publisher: name: The University of Texas at Austin
Year: 2023
Subjects: Immigration
Immigration detention
State violence
Necropolitics
Deportation
Social death
Slow violence

description: Today the United States operates the largest immigration detention system globally, with an estimated 29,613 immigrants detained across 200 immigrant prisons and jails as of June 2023 (TRAC Immigration 2023). According to federal government data, over 70 percent of immigrants detained are held in private prisons, with undocumented migrants comprising one of the fastest-growing prison populations (TRAC Immigration 2023). With this in mind, this dissertation is an ethnography of detention and deportation that examines the state apparatuses that govern U.S. immigration policies from 1924 to today. In particular, I apply and use the concept of the carceral state to consider the interconnected network of carceral and immigration regimes fused together by state and non-state entities at the local, regional, national, and transnational levels. In addition, this dissertation also centers the lived experiences and voices of undocumented immigrants and the ways activism and resistance are enacted within communities. To do this, I conducted an ethnography between January 2020 to December 2021, where I worked with two immigrant rights organizations, Grassroots Leadership and Freedom for Immigrants. My field methods included semi-structured interviews, direct and participant observation, and an oral history component. Based on my findings, violence manifested itself in detention transfers, waiting for resources and necessities, immigration bonds, surveillance, and routinized abuse. I contend that the U.S. has created a necropolitical immigration regime that places migrants in a space of social death where they are ineligible to personhood and made vulnerable to slow and structural violence manifested in the everyday.
A simplified global solution for an advection-dominated accretion flow
Creators: name: Yuan, Feng
name: Ma, Renyi
name: Narayan, Ramesh
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: When we model black hole accretion sources such as active galactic nuclei and black hole X-ray binaries as advection-dominated accretion flows (ADAFs), it is neccesary to use the global solution to the equations rather than the simpler self-similar solution, since the latter is inaccurate in the region near the black hole where most of the radiation is emitted. However, technically, it is a difficult task to calculate the global solution because of the transonic nature of the flow, which makes it a two-point boundary value problem. In this paper we propose a simplified approach for calculating the global ADAF solution. We replace the radial momentum equation by a simple algebraic relation between the angular velocity of the gas and the Keplerian angular velocity, while keeping all other equations unchanged. It is then easy to solve the differential energy equations to obtain an approximate global solution. By adjusting the free parameters, we find that for almost any accretion rate and for $α=0.1-0.3$ we can get good simplified global solutions. The predicted spectra from the approximate solutions are very close to the spectra obtained from the true global solutions.
description: 12 pages, 4 figures, accepted by ApJ
Gesangbücher aus der Geschichte der SELK
Creators: name: Junker, Johannes
Publisher: name: Lutherische Beiträge
Year: 2024

description: Gesangbücher aus der Geschichte der Selbständigen Evangelisch-Lutherischen Kirche (SELK) Teil 6: Das Gesangbuch von Theodor Harms, "Das singende und betende Zion"
description: Lutherische Beiträge, Bd. 28 Nr. 1 (2023): Lutherische Beiträge
Die Ehe des Pfarrers
Creators: name: Grünhagen, Andrea
Publisher: name: Lutherische Beiträge
Year: 2024

description: Das persönliche und geistliche Leben eine Pfarrers, seiner Ehefrau und Familie  
description: Lutherische Beiträge, Bd. 28 Nr. 1 (2023): Lutherische Beiträge
Ermutigung zum Gebet
Creators: name: Hillermann, Johann
Publisher: name: Lutherische Beiträge
Year: 2024

description: Einführung und Ermutigung zum Gebet. Realität, göttliche Notwendigkeit und Hilfe zum Gebet. 
description: Lutherische Beiträge, Bd. 28 Nr. 1 (2023): Lutherische Beiträge
Dynamics of Random Packings in Granular Flow
Creators: name: Rycroft, Chris H.
name: Bazant, Martin Z.
name: Grest, Gary S.
name: Landry, James W.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We present a multiscale simulation algorithm for amorphous materials, which we illustrate and validate in a canonical case of dense granular flow. Our algorithm is based on the recently proposed Spot Model, where particles in a dense random packing undergo chain-like collective displacements in response to diffusing "spots" of influence, carrying a slight excess of interstitial free volume. We reconstruct the microscopic dynamics of particles from the "coarse grained" dynamics of spots by introducing a localized particle relaxation step after each spot-induced block displacement, simply to enforce packing constraints with a (fairly arbitrary) soft-core repulsion. To test the model, we study to what extent it can describe the dynamics of up to 135,000 frictional, viscoelastic spheres in granular drainage simulated by the discrete-element method (DEM). With only five fitting parameters (the radius, volume, diffusivity, drift velocity, and injection rate of spots), we find that the spot simulations are able to largely reproduce not only the mean flow and diffusion, but also some subtle statistics of the flowing packings, such as spatial velocity correlations and many-body structural correlations. The spot simulations run over 100 times faster than DEM and demonstrate the possibility of multiscale modeling for amorphous materials, whenever a suitable model can be devised for the coarse-grained spot dynamics.
description: 8 pages, 7 figures
The species of subversion : three paintings by Cecilia Vicuña
Creators: name: McCausland, Victoria
Publisher: name: The University of Texas at Austin
Year: 2023
Subjects: Queer theory
Posthumanism

description: Cecilia Vicuña is widely known for multimedia artworks and ecofeminist, anticolonial activism. Her rise to popularity has resulted in a 2022 solo exhibition, Spin Spin Triangulene at the Solomon R. Guggenheim Museum, and at the 2022 Venice Biennale. However, the artist’s late career renaissance has left scholars with over five decades worth of artworks to consider. While current literature mainly examines her ephemeral installations and poetry, Vicuña’s painted works have received significantly less scholarly engagement, particularly in connection with the Chilean dictatorship (1973-1990). By drawing from both queer theory and posthumanism, this project investigates the ways in which Vicuña uses the body as a site of resistance in three paintings from the early years of the military junta.
ASEAN regionalism in the post-cold war Asia-Pacific
Creators: name: Bahar, Emran
Publisher: name: Canberra, ACT : The Australian National University
Year: 1997

description: In conclusion, it can be observed that ASEAN institutions have undergone several stages of evolution reflecting the member countries' general attitudes towards regionalism in Southeast Asia. The mechanisms of ASEAN cooperation started modestly in 1967 until1976 when it was greatly overhauled by the ASEAN Heads of Government. Since then, the ASEAN institutions have continued to receive the attention of member governments although the ASEAN Secretariat in Jakarta that symbolises ASEAN cooperation, continues to remain modest. This is still so because member countries are pragmatic and careful not to create a huge centralised bureaucracy that can lead to inefficiency. Nevertheless, through the ASEAN structure, political leaders and officials from member countries interact with one another forming a network of personal and working relations crucial for ASEAN regionalism in the 1990s. Moreover, the Secretariat facilitates information flows and reduces costs of regional transaction. This further underpins regional activities. This conclusion reinforces the argument that in ASEAN, the process is in itself important. As Michael Leifer has argued, 'for ASEAN governments, a personalised process of consultation and cooperation has become more important than formal procedures for problem-solving'.43 Following this argument, the numerous number of meetings, besides producing papers and an unaccountable number of recommendations, Joint Communiques or Press Releases are important as well. These factors help to foster confidence in ASEAN as it enters the post-Cold War Asia Pacific.
Kar'úk wo taasíil to muumi and others
Creators: name: Cachora, Ignatius
name: Halpern, Abraham M.
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2023
Subjects: subject: yum

description: 2 WAV files. Side A, "Kar'úk wo taasíil to muumi"; Side B, "Kar'úk wo taasíil uunguu xuunyarungu -- nyawaamíkawa." For associated notebook, see Margaret Langdon Papers (Bancroft Library), carton 9, folder 51. Digitization by The Audio Archive (Burlingame, California).
Playing Quantum Physics Jeopardy with zero-energy eigenstates
Creators: name: Gilbert, L. P.
name: Belloni, M.
name: Doncheski, M. A.
name: Robinett, R. W.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: We describe an example of an exact, quantitative Jeopardy-type quantum mechanics problem. This problem type is based on the conditions in one-dimensional quantum systems that allow an energy eigenstate for the infinite square well to have zero curvature and zero energy when suitable Dirac delta functions are added. This condition and its solution are not often discussed in quantum mechanics texts and have interesting pedagogical consequences.
description: 8 pages, 3 figures, requires graphicx and epsfig packages. Additional information, including individual files containing the Worksheet and a Worksheet template, are available at http://webphysics.davidson.edu/mjb/jeopardy/
Wie hat Joachim Mörlin gepredigt?
Creators: name: Kolb, Robert
Publisher: name: Lutherische Beiträge
Year: 2024

description: Joachim Mörlin und seine Predigten, homiletische Methoden und Hauptinhalte seiner Predigten
description: Lutherische Beiträge, Bd. 28 Nr. 1 (2023): Lutherische Beiträge
Statistics of gravitational potential perturbations: A novel approach to deriving the X-ray temperature function
Creators: name: Angrick, Christian
name: Bartelmann, Matthias
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Context. While the halo mass function is theoretically a very sensitive measure of cosmological models, masses of dark-matter halos are poorly defined, global, and unobservable quantities. Aims. We argue that local, observable quantities such as the X-ray temperatures of galaxy clusters can be directly compared to theoretical predictions without invoking masses. We derive the X-ray temperature function directly from the statistics of Gaussian random fluctuations in the gravitational potential. Methods. We derive the abundance of potential minima constrained by the requirement that they belong to linearly collapsed structures. We then use the spherical-collapse model to relate linear to non-linear perturbations, and the virial theorem to convert potential depths to temperatures. No reference is made to mass or other global quantities in the derivation. Results. Applying a proper high-pass filter that removes large enough modes from the gravitational potential, we derive an X-ray temperature function that agrees very well with the classical Press-Schechter approach on relevant temperature scales, but avoids the necessity of measuring masses. Conclusions. TThis first study shows that and how an X-ray temperature function of galaxy clusters can be analytically derived, avoiding the introduction of poorly defined global quantities such as halo masses. This approach will be useful for reducing scatter in observed cluster distributions and thus in cosmological conclusions drawn from them.
description: 10 pages, 5 figures, accepted for publication in A&A. Revision to match the published version. Equation 8 corrected. Notable changes in section 4 including new figures
Late Glacial and Holocene Palaeoecology of the Lake St Clair Region, Tasmania
Creators: name: Hopf, Felicitas Viktoria Luise
Publisher: name: The Australian National University
Year: 2018
Subjects: pollen
vegetation
Holocene
charcoal
history
palaeoecology

description: This thesis presents a history of regional and local changes in vegetation in the Lake St Clair region, supported by modern vegetation and pollen analyses. The records span into oxygen isotope stage 3, with a focus on the last Glacial Holocene transition and fill a gap in the poorly studied region of Central Tasmania. The vegetation during the last glaciation prior to the Last Glacial Maximum was characterised by widespread Pherosphaera hookeriana dominated alpine coniferous heath growing together with a mosaic of alpine grasslands, herbfields, heathland and sedgeland. The lakes at Clarence Lagoon and Excalibur Bog are inferred to have dried up under the cold and dry climate during the Last Glacial Maximum. The legacy of Pherosphaera hookeriana dominated vegetation extends to the early deglacial sediments in Lake St Clair, declining to only trace representation through the remainder of the late Glacial and Holocene in the wider Lake St Clair region. Deglaciation of Lake St Clair was complete by c. 18.3 cal kyr BP and subsequent replacement of an early mosaic of alpine vegetation types, by subalpine Athrotaxis cupressoides and Diselma archeri dominated rainforest and/or woodland in response to rapidly rising temperatures and precipitation, is in sync with postglacial Antarctic warming and rising sea surface temperatures. A 900-year period of renewed grassland expansion is inferred to represent slightly cooler/drier conditions leading into the Antarctic Cold Reversal, abruptly ended by strong increases in rainforest mid-way through the Antarctic Cold Reversal suggesting a shift to a wetter and warmer climate leading to the establishment of Phyllocladus aspleniifolius-Nothofagus cunninghamii rainforest. The abrupt decline in Phyllocladus aspleniifolius at c. 12.4 cal kyr BP marks the expansion of Nothofagus cunninghamii-Atherosperma moschatum callidendrous rainforest growing under optimal conditions during the Early Holocene, which becomes more complex between c. 10-8 cal kyr when Phyllocladus aspleniifolius returns to high values, together with a secondary peak of Athrotaxis/Diselma under an inferred wetter and warm climate. At c. 8 cal kyr BP, the rainforest taxon Anodopetalum/Eucryphia becomes important and the remainder of the Holocene sees an overall decline in rainforest taxa and increase in sclerophyll and herbaceous taxa and fire activity, which intensifies during the late Holocene. The observed changes in the record are consistent with the onset of ENSO and a more variable climate from c. 8 cal kyr BP and an intensification and cooling temperatures from c. 5 cal kyr BP.
Looped cotangent Virasoro algebra and non-linear integrable systems in dimension 2+1
Creators: name: Ovsienko, Valentin
name: Roger, Claude
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: 17B68, 17B80, 35Q53

description: We consider a Lie algebra generalizing the Virasoro algebra to the case of two space variables. We study its coadjoint representation and calculate the corresponding Euler equations. In particular, we obtain a bi-Hamiltonian system that leads to an integrable non-linear partial differential equation. This equation is an analogue of the Kadomtsev--Petviashvili (of type B) equation.
description: LaTeX, 21 pages
Relating seesaw neutrino masses, lepton flavor violation and SUSY breaking
Creators: name: Joaquim, Filipe R.
name: Rossi, Anna
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss a GUT realization of the supersymmetric triplet seesaw mechanism(recently proposed by us in hep-ph/0604083 and further analyzed in hep-ph/0607298) where the exchange of the heavy triplet states generates both neutrino masses and soft SUSY breaking terms.
description: 4 pages, 2 eps figures. To appear in Proceedings of SUSY06, the 14th International Conference on Supersymmetry and the Unification of Fundamental Interactions, UC Irvine, California, 12-17 June 2006
"I'm increasingly obsessed by the need to render what I experience" : a study of temporality in Impressionist landscape painting
Creators: name: Valdez Carrasco, Alejandra Aimeé
Publisher: name: The University of Texas at Austin
Year: 2023
Subjects: subject: Landscape painting
subject: Impressionism
subject: Claude Monet
subject: Pierre Auguste Renoir
subject: Philosophy
subject: FOS: Philosophy, ethics and religion
subject: 19th century art
subject: Jean-Jacques Rousseau
subject: Gustave Geffroy

description: Inspired by Jean-Jacques Rousseau's Les Rêveries du Promeneur Solitaire, I wish to reflect on landscape painting in terms of its relationship and interaction with humans. In painting, nature and its variations create a sensory experience and an accompanying emotional response that wholly occupies the mind and, therefore, liberates it. Expanding on this notion, I introduce Gustave Geffroy's seminal cultural and artistic studies La Vie Artistique, which stresses the importance of Impressionist art's ephemeral qualities. Geffroy argues that even though this type of art is based on temporary phenomena, it has the power to transcend the material qualities of the physical world. Although Impressionist painting surpassed the actions of its creators by becoming a legacy, something about the ephemeral qualities of Impressionist art and the process of its creation remains unnamed by scholars. By paying attention to this gap in Impressionist scholarship, I hope to bring a more nuanced perspective to the connection between landscape painting and the philosophical features of this art. Based on the practice of painting outdoors and creating art on the spot, the landscapes and scenes of everyday life become activated, and the art of capturing ephemeral moments in a tangible medium is converted into an experience with performative nuances. This study explores the immersive roots of Impressionism while focusing strictly on landscape painting. However, I wish to study landscape painting as an umbrella by covering both natural and urban landscapes. Regarding the artworks that will be selected for this study, I decided to work with two prominent representatives of the movement, Pierre-Auguste Renoir and Claude Monet, not only because of their extensive body of work or historical fame but also due to their focus on specific types of landscapes.
Journal of an homme d'affaires, Rene Gimpel 1918-1939: anatomy of cultural perception
Creators: name: Kostyrko, Diana J
Publisher: name: Canberra, ACT : The Australian National University
Year: 2012

description: Rene Gimpel's Diary of an Art Dealer was published in New York and London in 1966 to mixed reviews. Released twenty-one years after the author died, the publication essentially comprises the journal entries of a Paris-based art dealer during the interwar period of the twentieth century. Despite presenting a subjective view from a single source very little is revealed in the journal about the author himself, thus, in spite of the title, Diary cannot be considered an example of life-writing but rather one of narration. What is remarkable about the journal is that it was kept up for twenty-one years and, among other things, documents aspects of the most formative period of the modern art market: when important European art was sold into North American private collections at an unprecedented rate. Most of that art is now in public museums in the United States and forms a significant part of that nation's cultural heritage. In that respect, Diary is a record of Euro-American exchange revealing patterns of taste and consumption in the early to mid-twentieth century. What is the value of Diary? What is its legacy? How reliable is it, and should that matter? Heavily edited, it was published for general readership and correspondingly appears to have been read widely and uncritically. It has also consistently been mined for data. Diary represents a unique and rich perspective during a time of tremendous flux, but it seems that far from being taken seriously as a memoir or a cultural documentary it has tended to be treated as a footnote to other grander narratives. However the art historian, Sir Herbert Read, who wrote the preface to Diary, described it as: 'no casual journal: it has a purpose, part literary, part historical'. This thesis examines Dia1y as a narrative and as an historical document. More specifically it is a study of the contexts of its author's life and time observed through the mediating lens of Rene Gimpel's journal.