cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A (concentration-)compact attractor for high-dimensional non-linear Schrödinger equations
Creators: name: Tao, Terence
Publisher: name: arXiv
Year: 2006
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35Q55

description: We study the asymptotic behavior of large data solutions to Schrödinger equations $i u_t + Δu = F(u)$ in $\R^d$, assuming globally bounded $H^1_x(\R^d)$ norm (i.e. no blowup in the energy space), in high dimensions $d \geq 5$ and with nonlinearity which is energy-subcritical and mass-supercritical. In the spherically symmetric case, we show that as $t \to +\infty$, these solutions split into a radiation term that evolves according to the linear Schrödinger equation, and a remainder which converges in $H^1_x(\R^d)$ to a compact attractor, which consists of the union of spherically symmetric almost periodic orbits of the NLS flow in $H^1_x(\R^d)$. This is despite the total lack of any dissipation in the equation. This statement can be viewed as weak form of the "soliton resolution conjecture". We also obtain a more complicated analogue of this result for the non-spherically-symmetric case. As a corollary we obtain the "petite conjecture" of Soffer in the high dimensional non-critical case.
description: 60 pages. A confusing typo (pointed out by Tristan Roy) regarding two parameters (mu_3 and mu_4) mistakenly being swapped with each other for a large portion of the paper has now been fixed
Integral Field Spectroscopy of a peculiar Supernova Remnant MF16 in NGC6946
Creators: name: Abolmasov, P.
name: Fabrika, S.
name: Sholukhova, O.
name: Afanasiev, V.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a study of a peculiar Supernova Remnant MF16, associated with the Ultraluminous X-ray Source (ULX) NGC6946 ULX-1. Observations were taken with the MultiPupil Fiber Spectrograph (MPFS) with 6-m telescope on January 2005. The nebula is found to be highly asymmetric, one of the parts being much denser and colder. The two-component structure of the emission lines and radial velocity gradient argue for a non-spherical nebula, expanding with a velocity of about 100 km/s. Neither shock models nor the X-ray emission can adequately explain the actual emission line spectrum of MF16, so we suggest an additional ultraviolet source with a luminosity of about 10E40 erg/s. We confirm coincidence of the ULX with the central star, and identify radio emission observed by VLA with the most dense part of the nebula.
description: Proceedings of the ESO and Euro3D Workshop "Science Perspectives for 3D Spectroscopy", Garching (Germany), October 10-14, 2005. M. Kissler-Patig, M.M. Roth and J.R. Walsh (eds.)
Time Scales in Evolutionary Dynamics
Creators: name: Roca, Carlos P.
name: Sanchez, Jose A. Cuesta y Angel
Publisher: name: arXiv
Year: 2006
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Dynamical Systems (math.DS)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Physics and Society (physics.soc-ph)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Evolutionary game theory has traditionally assumed that all individuals in a population interact with each other between reproduction events. We show that eliminating this restriction by explicitly considering the time scales of interaction and selection leads to dramatic changes in the outcome of evolution. Examples include the selection of the inefficient strategy in the Harmony and Stag-Hunt games, and the disappearance of the coexistence state in the Snowdrift game. Our results hold for any population size and in the presence of a background of fitness.
description: Final version with minor changes, accepted for publication in Physical Review Letters
Maximal monotonicity, conjugation and the duality product
Creators: name: Burachik, Regina Sandra
name: Svaiter, B. F.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Functional Analysis (math.FA)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 47H05; 47H04; 46B99

description: Recently, the authors studied the connection between each maximal monotone operator T and a family H(T) of convex functions. Each member of this family characterizes the operator and satisfies two particular inequalities. The aim of this paper is to establish the converse of the latter fact. Namely, that every convex function satisfying those two particular inequalities is associated to a unique maximal monotone operator.
description: 8 pages, corrected author's names
Twistor algebraic dynamics in complex space-time and physical meaning of hidden dimensions
Creators: name: Kassandrov, Vladimir V.
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: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We review the algebraic field theory based completely on a nonlinear generalization of the CR complex analiticity conditions to the noncommutative algebra of biquaternions. Any biquaternionic field possesses natural twistor structure and, in the Minkowski space, gives rise to a shear-free null congruence of rays and to a set of gauge fields associated with it. In the paper we develop the algebrodynamical scheme in the complex extension of Minkowski space-time -- in the full vector space of biquaternion algebra. This primodial space dynamically reduces to the 6D ``observable'' space-time of the complex null cone which in turn decomposes into the 4D physical space-time and the 2D internal ``spin space''. A set of identical point charges (``duplicons'') -- focal points of the congruence -- arises in the procedure. Temporal dynamics of individual duplicons is strongly correlated via fundamental twistor field of the congruence. We briefly discuss some new notions inevitably arising in the considered algebrodynamical scheme, namely those of ``complex time'' and of ``evolutionary curve'', as well as their hypothetical links to the quantum uncertainty phenomenon.
description: 13 pages, LaTeX
Friedemann Kawohl, Michael Tocha (Hgg.): Von der Reformation zur Ökumene. Konfessionelle Identitäten und Milieus in Villingen-Schwenningen und auf der Baar
Creators: name: Schulze, Ute
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 2024

description: .
description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 41 (2022): Rottenburger Jahrbuch für Kirchengeschichte, Band 41
The Southeast Asian nuclear weapon free zone proposal : retrospect and prospect
Creators: name: Natalegawa, Raden Mohammad Marty Muliana
Publisher: name: Canberra, ACT : The Australian National University
Year: 2013

description: This thesis examines the Southeast Asian Nuclear Weapon Free Zone (SEANWFZ) proposal; its past and its future. At the end of 1992, East-West tensions prevalent at the time of the concept's birth are no longer present. ASEAN-Indochina dichotomy common for much of the 1980s has largely been erased. The study seeks to answer the question of the relevance of the SEANWFZ proposal in the changing regional and global security environments and in this way contribute toward discussions about the place of the NWFZs concept generally in the post-Cold War period. The study approaches this task by identifying some of the expectations states have of NWFZs and by applying these in evaluating the attitudes of the United States, the Soviet Union, later Russia, China and the ASEAN states toward the SEANWFZ proposal. The thesis shows that these states have tended to focus on one aspect of the SEANWFZ idea: its geographical nuclear non-proliferation aspect; in other words, SEANWFZ's potential to regulate the regional deployment of nuclear weapons belonging to the nuclear-weapon states. Divergence of views about the implications of the geographical nuclear non-proliferation aspect of SEANWFZ contributed to the proposal's lack of progress. In fact, the debate seemed to have been based on an exaggerated view of the exclusionary potential of SEANWFZ. In practice opponents and supporters of . SEANWFZ were primarily concerned with the symbolic impact of the scheme. The end of the Cold War seems to offer a more positive environment for the realization of SEANWFZ. The draw-down in U.S. and Russian military presence in Southeast Asia is likely to reduce the past fixation with the geographical non-proliferation aspect of SEANWFZ. At the same time, the horizontal non-proliferation and confidence-building aspects of SEANWFZ may receive greater attention. What is certain is that as symbolic or political tools and as arms control measures, a SEANWFZ, and NWFZs generally, still have a unique potential to contribute toward the promotion of regional and global security in the post-Cold War period.
Hans-Georg Aschoff: Das Bistum Hildesheim zwischen Reformation und Säkularisation. Geschichte des Bistums Hildesheim, Bd. 2, hrsg. von Thomas Scharf-Wrede
Creators: name: Eberl, Immo
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 2024

description: .
description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 41 (2022): Rottenburger Jahrbuch für Kirchengeschichte, Band 41
Quantum Machine Learning for Particle Physics using a Variational Quantum Classifier
Creators: name: Blance, Andrew
name: Spannowsky, Michael
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum machine learning aims to release the prowess of quantum computing to improve machine learning methods. By combining quantum computing methods with classical neural network techniques we aim to foster an increase of performance in solving classification problems. Our algorithm is designed for existing and near-term quantum devices. We propose a novel hybrid variational quantum classifier that combines the quantum gradient descent method with steepest gradient descent to optimise the parameters of the network. By applying this algorithm to a resonance search in di-top final states, we find that this method has a better learning outcome than a classical neural network or a quantum machine learning method trained with a non-quantum optimisation method. The classifiers ability to be trained on small amounts of data indicates its benefits in data-driven classification problems.
description: 20 pages, 6 figures
Jensen's operator inequality and its converses
Creators: name: Hansen, Frank
name: Pecaric, Josip
name: Peric, Ivan
Publisher: name: arXiv
Year: 2006
Subjects: subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 47A63

description: We give a general formulation of Jensen's operator inequality for unital fields of positive linear mappings, and we consider different types of converse inequalities.
description: Minor revision. To appear in Math. Scan
The impact of host country policies upon foreign direct investment : the Asia Pacific experience, 1970-1990
Creators: name: Korompai, Victor Thomas
Publisher: name: University of British Columbia
Year: 2009

description: This paper attempts to examine the relationship between host country policies towards foreign direct investment (FDI) and the amount of FDI that host countries receive. The paper first considers some of the issues involved in FDI and the type of policies developing economies have typically used towards it. Secondly, using World Bank and United Nations information, data on net FDI flows to host countries and on host country policies is presented from 1970-1990. Specifically, the FDI policies of ten Asia Pacific economies is examined over this period and their effects on FDI levels in these economies is assessed. Thirdly, using data from twenty-seven additional developing countries, multiple regression analysis is employed in order to attempt to empirically demonstrate the effect of FDI policies upon FDI levels in developing countries. The analysis suggests that general economic variables have greater significance in explaining the flow of FDI to developing economies, but FDI policies do seem to have a distinguishable effect when viewed at separate points in time. The paper concludes that locational advantages are crucial in attracting FDI flows but that these advantages are enhanced when policies favourable towards foreign investors are utilized. Some suggestions on improving the paper's approach and on possible future research issues are also provided.
The nxn KdV flows
Creators: name: Terng, Chuu-Lian
name: Uhlenbeck, Karen
Publisher: name: arXiv
Year: 2006
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We introduce a new integrable system hierarchy which is a restriction of the AKNS nxn hierarchy coming from an unusual splitting of the loop algebra. This splitting comes from an automorphism of the loop algebra instead of an automorphism of SL(n,C). It is known that the 2x2 KdV is the standard KdV hierarchy.
description: We move section 4 and 5 of version 1 to a new paper titled "Tau function and Virasoro action for the nxn KdV hierarchy"
Peer Friess, Dietmar Schiersner (Hgg.): Aus Sorge um die Gesundheit. Geschichte der Medizin in der Region
Creators: name: Aumüller, Gerhard
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 2024

description: .
description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 41 (2022): Rottenburger Jahrbuch für Kirchengeschichte, Band 41
Letter from R.H. Rogers to [Frank] Hewer, March 18, 1908
Creators: name: Rogers, R.H.
Publisher: name: The University of British Columbia
Year: 2017

description: Letter to Frank Hewer from R.H. Rogers, barrister and solicitor, dated March 18, 1908 regarding cases for trespass against Mr. Petrie and Mr. Ellison.
Single-Pole Interaction of the Particle with the String
Creators: name: Vasilic, Milovan
name: Vojinovic, Marko
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Within the framework of generalized Papapetrou method, we derive the effective equations of motion for a string with two particles attached to its ends, along with appropriate boundary conditions. The equations of motion are the usual Nambu-Goto-like equations, while boundary conditions turn out to be equations of motion for the particles at the string ends. Various properties of those equations are discussed, and a simple example is treated in detail, exhibiting the properties of Neumann and Dirichlet boundary conditions and giving a small correction term to the law of Regge trajectories due to the nonzero particle mass.
description: This is a contribution to the Proc. of the Seventh International Conference ''Symmetry in Nonlinear Mathematical Physics'' (June 24-30, 2007, Kyiv, Ukraine), published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA/
Predicting Berborite as Potential Deep-Ultraviolet Nonlinear Optical Crystal from First Principles
Creators: name: Kang, Lei
name: Gong, Pifu
name: Lin, Zheshuai
name: Huang, Bing
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Following our ab initio nonlinear optical (NLO) materials design guidelines, in this Letter, we discovered a novel type of structure to realize potential deep-ultraviolet (DUV) NLO performance in the classical beryllium borate system. By densely stacking the NLO-active layered frameworks, the key design scheme for the structural evolution from the (Be2BO3F2) layers in KBe2BO3F2 (KBBF) to the novel (Be2BO5H3) layers in berborite is illustrated. Based on available experimental results and systematical theoretical evaluation from first principles, the NLO properties of berborite are further obtained as comparable as the only pratical DUV NLO crystal KBBF. It is demonstrated that berborite can achieve available DUV phase-matched output with strong NLO effect for the practically important 177.3 nm and 193.7 nm lasers. Once obtained with sizable single crystal, it can be applied as a promising DUV NLO crystal.
description: 10 pages, 3 figures
Large Deviations Principles for Langevin Equations in Random Environment and Applications
Creators: name: Nguyen, Nhu N.
name: Yin, George
Publisher: name: arXiv
Year: 2021
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In contrast to the study of Langevin equations in a homogeneous environment in the literature, the study on Langevin equations in randomly-varying environments is relatively scarce. Almost all the existing works require random environments to have a specific formulation that is independent of the systems. This paper aims to consider large deviations principles (LDPs) of Langevin equations involving a random environment that is a process taking value in a measurable space and that is allowed to interact with the systems, without specified formulation on the random environment. Examples and applications to statistical physics are provided. Our formulation of the random environment presents the main challenges and requires new approaches. Our approach stems from the intuition of the Smoluchowski-Kramers approximation. The techniques developed in this paper focus on the relation between the solutions of the second-order equations and the associate first-order equations. We obtain the desired LDPs by showing a family of processes enjoy the exponential tightness and local LDPs with an appropriate rate function.
Cold atom interferometry in optical potentials
Creators: name: McDonald, Gordon Douglas
Publisher: name: The Australian National University
Year: 2015

description: This thesis describes recent experiments conducted on a Bose-Einstein condensate in an optical waveguide. This optical potential confines the atoms against gravity in the vertical dimension, guiding them to freely propagate in the horizontal. Being supported against gravity enables long expansion times of hundreds of milliseconds, facilitating techniques such as delta-kick cooling. In an ideal atom interferometer, the beamsplitters would impart a large momentum splitting between the interfering states in order to increase the signal. However, their effective use requires both an even narrower momentum width source and good vibration isolation. Three such techniques were investigated in this thesis: reflection from a repulsive light potential barrier, Bragg transitions from an optical lattice (which are effectively bouncing atoms off a moving grating), and Bloch-acceleration by loading the atoms into such an optical lattice and then accelerating the combined system. It is found that a combination of both Bragg and Bloch provides the most promising route to truly large momentum transfer in a system which is sensitive only to acceleration. Lastly, large-momentum transfer techniques can be used to effectively increase the way in which the output signal scales with time, creating interferometers which generate the same sensitivity faster (increasing the bandwidth of a sensor), or generate a much better sensitivity in the same time. We form a dual condensate of both rubidium-85 an rubidium-87 via sympathetic cooling. The collisional properties of Rubidium-85 can be modified by applying an external magnetic field, at an easy-to-experimentally-reach value of between 150-170G. It turns out that this combination of atomic isotopes is ideal for an interferometric test of the weak equivalence principle, one of the underpinnings of General Relativity. This thesis also presents the results of the first Bose-condensed version of such a dual-species interferometer. By removing any 87Rb left after condensation, we have created a pure 85Rb BEC. Using this we can now explore how the inter-atomic interactions affect the phase shift of a condensed atom interferometer, as we have complete control over the interaction strength. A condensate with no inter-particle interactions should behave like an ideal particle. With a small attractive interaction between atoms, it is possible to create a self-trapped cloud of atoms which propagates dispersionlessly. This cloud is known as a soliton, and it is predicted to have even more interesting quantum mechanical properties. For example it is predicted that by colliding two such solitons, an entangled state can be generated. Our results indicate that the dispersionless character of the soliton out-performs all other interaction strengths in an atom interferometer, including even the non-interacting cloud.
The heart of a woman: leading first nations on the road to recovery
Creators: name: Anderson, Allyson Kathlena
Publisher: name: University of British Columbia
Year: 2009

description: This study examines the way that Native women incorporate the history of colonization into the way that they think about, and organize against, family violence in Vancouver's urban Aboriginal community. Using Melucci's (1989) model of collective action, this thesis focuses on the social process behind Native women's organized resistance to domestic violence. This thesis studied family violence intervention programs among Vancouver's Aboriginal organizations in order to understand the underlying process of negotiation between collective identity, solidarity, and environment. The study was divided into two levels: the organizational and individual. The thesis studied the narratives, or discourse of both organizations and individuals who delivered family violence intervention projects to the urban Native community. On the organizational level, data consisted of promotional texts that were produced by the organizations (posters,leaflets, brochures). The texts were then subjected to a content analysis, to identify the frequency of rhetorical devices, and then a rhetorical analysis, to see how these concepts were used. On the individual level, data was collected by means of loosely-structured interviews that asked questions about why participants were involved in family violence intervention. Nine interviews were collected from individuals who worked the organizations sampled. A rhetorical analysis of the interviews was also conducted, and compared with organizational discourse. The study found that the anti-violence movement among Vancouver's urban Native women was articulated primarily through the rhetoric of healing through cultural identity and spirituality. Both on the organizational and the individual levels, violence against Aboriginal women was explained as a result of the colonial process. The low status of Native women was linked to the oppression of First Nations people. "Healing" from the destructive cycle of family violence involved recovering "traditional" ethnic and gender identities, which in turn involved raising the status of women in Aboriginal communities.
Early farming in Southeastern Norway: New evidence and interpretations
Creators: name: Nielsen, Svein Vatsvåg
Publisher: name: Journal of Neolithic Archaeology
Year: 2021

description: The spread of a Neolithic mode of production in prehistory had a significant impact on subsequent economic and demographic developments. Early farming in Norway is usually inferred from the pollen record or distribution maps of imported axes, which indicate its introduction around the Oslo Fjord around 3900 cal BCE. A persistent anomaly for this model is the lack of direct evidence of cultivation and knowledge of where farming took place. This paper argues that a number of sites used for farming in the Early Neolithic were discovered by excavations in Southeastern Norway in the period from 2004–2013. It is dedicated to the presentation and interpretation of these sites. As a main result of the investigations, the number of known Early Neolithic farming sites in Southeastern Norway increases from one to 15. It suggests a new economic model for the Oslo Fjord region that a) accounts for places of farming and b) argues that acculturation was an important factor for the adoption of farming in this region of Scandinavia. The poor condition of the 15 Early Neolithic farming sites in Southeastern Norway indicates that subsequent cultivation has erased most traces left behind from this pioneer phase.
description: Journal of Neolithic Archaeology, 23 (2021)
Approximation of stationary processes by Hidden Markov Models
Creators: name: Finesso, Lorenzo
name: Grassi, Angela
name: Spreij, Peter
Publisher: name: arXiv
Year: 2006
Subjects: subject: Optimization and Control (math.OC)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 93E03, 60J10

description: We aim at the construction of a Hidden Markov Model (HMM) of assigned complexity (number of states of the underlying Markov chain) which best approximates, in Kullback-Leibler divergence rate, a given stationary process. We establish, under mild conditions, the existence of the divergence rate between a stationary process and an HMM. Since in general there is no analytic expression available for this divergence rate, we approximate it with a properly defined, and easily computable, divergence between Hankel matrices, which we use as our approximation criterion. We propose a three-step algorithm, based on the Nonnegative Matrix Factorization technique, which realizes an HMM optimal with respect to the defined approximation criterion. A full theoretical analysis of the algorithm is given in the special case of Markov approximation.
description: The 2nd version mainly has additional references and a new condition of Theorem 4.2
Cross-Sections for $t{\bar t}H$ production with the Top Quark $\overline{MS}$ Mass
Creators: name: Aldaya Martin, Maria
name: Moch, Sven-Olaf
name: Saibel, Andrej
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2021
Subjects: top, mass
higher-order, 1
mass, renormalization
mass, pole
quantum chromodynamics, perturbation theory
stability
mass spectrum
differential cross section

description: We study the impact of the top quark mass renormalized in the $\overline{MS}$ scheme on the $t{\bar t}H$ production cross-sections as an alternative to theory predictions with the conventional the pole mass scheme. The differential cross-sections at next-to-leading order in perturbative QCD with stable top quarks show a moderate decrease in scale uncertainties for the $\overline{MS}$ mass renormalization scheme compared to the on-shell one.The shape of the differential distributions is not affected much, the largest differences being observed in the invariant mass distributions of the $t{\bar t}$ and the $t{\bar t}H$ systems.
The making of Thailand's foreign policy towards Vietnam : the era of reconciliation and regionalism (1988-1995)
Creators: name: Mahapannaporn, Paitoon
Publisher: name: Canberra, ACT : The Australian National University
Year: 2013

description: This inquiry is concerned with the development of the bilateral relationship between Thailand and Vietnam since the late 1980s. There is particular interest in this task, not simply because of the rapidity and scale of change over this period, but also given the hostile history of relations between these nations. Historically, Thailand and Vietnam have contested the neighbouring territories of Laos and Cambodia. In the twentieth century, tensions arose mainly from Thailand's stance on foreign involvement in Vietnam. The nations' susceptibility to outside influence has contrasied greatly. Thailand was lucky to be able to avoid Western colonialism while Vietnam had had a tortured colonial past with French occupation since the mid-19th century followed by the prolonged Cold War conflict between North and South in the 1960s and 1970s. Since the late 1980s, however, the lure of mutual economic rewards through trade has greatly improved the relationship as a result of the end of the Cold War and the resolution of the Cambodian conflict. This study considers this improvement mainly from the perspective of Thai foreign policy. It hypothesises that internal political and economic factors in Thailand have been the driving force behind the support of the Thai business community and reciprocity on the part of Vietnamese political and business elites. Without the vision and leadership of the then Thai Prime Minister Chatichai Choonhavan, it is unlikely that the relationship with Vietnam would have taken the liberalising, constructive course that it has. As is often the case in international relations, leaders matter crucially to the path taken and the results achieved. The arguments presented here testify to the importance of their involvement.
Sigrid Hirbodian, Tjark Wegner (Hgg.): Aufstand, Aufruhr, Anarchie! Formen des Widerstandes im deutschen Südwesten
Creators: name: Müsegades, Benjamin
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 2024

description: .
description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 41 (2022): Rottenburger Jahrbuch für Kirchengeschichte, Band 41
Resummation of projectile-target multiple scatterings and parton saturation
Creators: name: Munier, S.
name: Schwennsen, F.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the framework of a toy model which possesses the main features of QCD in the high energy limit, we conduct a numerical study of scattering amplitudes constructed from parton splittings and projectile-target multiple interactions, in a way that unitarizes the amplitudes without however explicit saturation in the wavefunction of the incoming states. This calculation is performed in two different ways. One of these formulations, the closest to field theory, involves the numerical resummation of a factorially divergent series, for which we develop appropriate numerical tools. We accurately compare the properties of the resulting amplitudes with what would be expected if saturation were explicitly included in the evolution of the states. We observe that the amplitudes have similar properties in a small but finite range of rapidity in the beginning of the evolution, as expected. Some of the features of reaction-diffusion processes are already present in that range, even when saturation is left out of the model.
description: 14 pages, 16 figures
Maria Weber: Schuldenmachen. Eine soziale Praxis in Augsburg (1480–1532)
Creators: name: Flachenecker, Helmut
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 2024

description: .
description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 41 (2022): Rottenburger Jahrbuch für Kirchengeschichte, Band 41
A multi-layer model for long-term KPI alignment forecasts for the air transportation system
Creators: name: Delgado, Luis
name: Gurtner, Gerald
name: Cook, Andrew
name: Cristobal, Samuel
name: Martin, Jorge
Publisher: name: arXiv
Year: 2020
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: This article presents a new, holistic model for the air traffic management system, built during the Vista project. The model is an agent-driven simulator, featuring various stakeholders such as the Network Manager and airlines. It is a microscopic model based on individual passenger itineraries in Europe during one day of operations. The article focuses on the technical description of the model, including data and calibration issues, and presents selected key results for 2035 and 2050. In particular, we show clear trends regarding emissions, delay reduction, uncertainty, and increasing airline schedule buffers.
Thomas Zotz, Andreas Schmauder, Johannes Kuber (Hgg.): Von den Welfen zu den Staufern. Der Tod Welfs VII. 1167 und die Grundlegung Oberschwabens im Mittelalter
Creators: name: Niederstätter, Alois
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 2024

description: .
description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 41 (2022): Rottenburger Jahrbuch für Kirchengeschichte, Band 41
The unsolidity of the ground
Creators: name: Lovegrove, Susan Faye
Publisher: name: Canberra, ACT : The Australian National University
Year: 2013

description: The presentation of the thesis comprises the Studio Practice component ( 66%) which takes the form of an exhibition of paintings and works on paper held at Helen Maxwell Gallery from the 22 March to the 14 April 2002 and at the Canberra School of Art Gallery from the 21 March to 28 March 2002, together with the Report which documents the nature and development of the research undertaken during the course of the study, plus the Dissertation component (33% ). The Studio Practice component has been based in the Painting Workshop and has examined the topic of the representation of the land. The Dissertation undertakes an analysis of the painting Big Yam Dreaming 1995 by Emily Kngwarray through a series of cross-cultural interpretations.
Etablierung eines ELN in Chemie-Laborpraktika
Creators: name: Manolikakes, Georg
Publisher: name: Zenodo
Year: 2021
Subjects: Electronic Laboratory Notebook
Student Lab
Research Data Management
Teaching

description: Am 02.12.2021 fand im Rahmen der Veranstaltungsreihe NFDI4Ing-Forum ein Workshop zur Nutzung elektronischer Laborbücher in der Lehre statt. Dieser dort gehaltene Vortrag beschäftigt sich mit dem geplanten Einsatz des elektronischen Laborbuchs Chemotion in Praktika im Studiengang Chemie an der TU Kaiserslautern. Die weiteren Vorträge der Veranstaltung werden getrennt hochgeladen und mit dem Datensatz der Ergebnissammlung verknüpft.
On the low frequency electromagnetic waves in quasi-two-dimensional metals
Creators: name: Zimbovskaya, Natalya A.
name: Gumbs, Godfrey
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Here, we theoretically analyze spectra of weakly attenuated electromagnetic waves which may appear in a Fermi-liquid of charge carriers in quasi-two-dimensional (Q2D) layered conductors when an external magnetic field is applied perpendicularly to the conducting layers. We study transverse modes propagating along the magnetic field. The frequencies of the modes are assumed to be lower than the cyclotron frequency of the charge carriers. It is shown that Fermi-liquid interaction of the charge carriers in Q2D conductors gives rise to a mode which cannot appear in a gase of charged quasiparticles, as well as it happens in conventional metals. Also, we show that the Fermi surface plofile may cause significant changes in the waves spectra and we analyze these changes.
description: 4 pages, 2 figures, accepted in Solid State Comm
Birgit Kulessa, Christoph Bittel: Bad Mergentheim
Creators: name: Rosenstock, Dirk
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 2024

description: .
description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 41 (2022): Rottenburger Jahrbuch für Kirchengeschichte, Band 41
Roland Girtler: Die alte Klosterschule. Eine Welt der Strenge und der kleinen Rebellen
Creators: name: Eberl, Immo
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 2024

description: .
description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 41 (2022): Rottenburger Jahrbuch für Kirchengeschichte, Band 41
Compatibility between the scalar field models of tachyon, $k$-essence and quintessence in $f(R, T)$ gravity
Creators: name: Bhardwaj, Vinod Kumar
name: Pradhan, Anirudh
name: Dixit, Archana
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the behavior of the scalar field in $f (R, T )$ gravity (Harko et al., Phys. Rev. D 84, 024020, 2011) inside the structure of a flat FRW cosmological model, where $R$ and $T$ have their usual meaning. The deterministic solution of FEs has been settled by considering the scale factor $S(t) = t^{m}e^{kt}$, where $m$ and $k$ are positive constant. Here we utilize three ongoing imperatives ($H_{0}=73.8$ and $ q_{0}=-0.73$) from SNe Ia Union observation (Cunha, Phys. Rev. D 79, 047301, 2009); ($H_{0}=73.8$ and $ q_{0}=-0.55$) from Type Ia Supernova (SNIa) observation in joined with (BAO) and (CMB) observation (Giostri et al., J. Cosmol. Astropart. Phys. 03, 027, 2012); and ($H_{0}=69.2$ and $q_{0}=-0.52)$ from (OHD+JLA) observation (Yu et al., Astrophys. J. 856, 3, 2018). We have measured and graphed several cosmological parameters and found that these findings are appropriate in comparison with the universe's physical and kinematic properties and also compatible with ongoing observations. The correspondence between the scalar field models of tachyon, k-essence, and quintessence is investigated by us. Our model explains the potentials and the dynamics of the scalar fields in the FRW universe. The reconstructed potential is very sensible and has a scaling arrangement. Subsequently, our study supports recent observations.
description: 18 pages, 16 figures, 1 table
Learning Hybrid Representations for Automatic 3D Vessel Centerline Extraction
Creators: name: He, Jiafa
name: Pan, Chengwei
name: Yang, Can
name: Zhang, Ming
name: Wang, Yang
name: Zhou, Xiaowei
name: Yu, Yizhou
Publisher: name: arXiv
Year: 2020
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Automatic blood vessel extraction from 3D medical images is crucial for vascular disease diagnoses. Existing methods based on convolutional neural networks (CNNs) may suffer from discontinuities of extracted vessels when segmenting such thin tubular structures from 3D images. We argue that preserving the continuity of extracted vessels requires to take into account the global geometry. However, 3D convolutions are computationally inefficient, which prohibits the 3D CNNs from sufficiently large receptive fields to capture the global cues in the entire image. In this work, we propose a hybrid representation learning approach to address this challenge. The main idea is to use CNNs to learn local appearances of vessels in image crops while using another point-cloud network to learn the global geometry of vessels in the entire image. In inference, the proposed approach extracts local segments of vessels using CNNs, classifies each segment based on global geometry using the point-cloud network, and finally connects all the segments that belong to the same vessel using the shortest-path algorithm. This combination results in an efficient, fully-automatic and template-free approach to centerline extraction from 3D images. We validate the proposed approach on CTA datasets and demonstrate its superior performance compared to both traditional and CNN-based baselines.
Approaches to Agrippan scepticism
Creators: name: Sworn, Benjamin Michael
Publisher: name: The Australian National University
Year: 2018
Subjects: subject: BD201.S96 2010
subject: Skepticism
subject: Knowledge, Theory of

description: I begin from the intuitive requirement that a proper explanation of the possibility of empirical knowledge cannot assume any empirical knowledge in order to explain its possibility. But in conjunction with a radical scepticism I call 'the Agrippan problematic' this requirement leads to the ostensibly paradoxical observation that we require empirical knowledge to explain the possibility of empirical knowledge, and yet we cannot assume any empirical knowledge in order explain its possibility. This ostensibly paradoxical observation is at the heart of that problematic. That observation is paradoxical, and not a straight contradiction, in virtue of how the Agrippan sceptic argues. But we should say that it is ostensibly paradoxical because the challenge to the epistemologist is to show why it is not paradoxical. To that end I delineate four applications of the general argumentative methodology of the Agrippan sceptic in regards to four epistemic loci I identify within the traditional notion of a justification or warrant for a belief. The most prominent of those epistemic loci is that of a justification itself, and in application to that locus the argumentative methodology of the Agrippan sceptic is commonly known as 'the epistemic regress argument'. I suggest that a formally sufficient answer to that argument should also enable an answer to the other three applications of the Agrippan sceptic's argumentative methodology. There are various responses in the literature to the epistemic regress argument, however I focus on three. They are: 'foundationalism', 'coherentism', and finally the epistemology of Wilfrid Sellars. Each in a different way questions the premise of the epistemic regress argument. That premise is that all justification must be inferential. I indentify two assumptions which underlie that premise: firstly, that the only way in which a belief can justify another belief is inferentially; and secondly, that a justification for some proposition must always be epistemically distinct from a belief in that proposition. The foundationalist questions that second assumption, essentially claiming that certain beliefs can justify themselves. However, I argue that we simply cannot make intelligible sense of the idea that a belief can justify itself except in certain specific cases. The coherentist questions neither assumption, instead suggesting that the Agrippan sceptic assumes that inferential justification is linear. However, I argue that the coherentist's position is a holistic foundationalism, and suffers from the same defects as that other position. Sellars, however, questions that first assumption, arguing that a belief can justify another belief without being inferentially connected to it. I argue that Sellars's epistemology may be taken to have the resources to illustrate that ostensibly paradoxical observation to be just that - ostensibly paradoxical.
Interpretation of the apparent activation energy of glass transition
Creators: name: Shirai, Koun
Publisher: name: arXiv
Year: 2020
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The temperature dependence of the viscosity of glass is a major concern in the field of glass research. Strong deviations from the Arrhenius law make the interpretation of the activation energy difficult. In the present study, a reasonable interpretation of the apparent activation energy is demonstrated along similar lines as those adopted in solid-state physics and chemistry. In contrast to the widely held view that phase transition in glass occurs at the reference temperature $T_{0}$ according to the Vogel--Fulcher--Tammann formula, in the present work the transition observed at the glass-transition temperature $T_{g}$ is regarded as a phase transition from the liquid to solid phases. A distinct feature of glass is that the energy barrier significantly changes in the transition range with width $ΔT_{g}$. This change in the energy barrier alters the manner in which the apparent activation energy constitutes the Arrhenius form. Analysis of available experimental data showed that the actual energy barrier is significantly smaller than the apparent activation energy, and importantly, the values obtained were in the reasonable range of energy expected for chemical bonds. The overestimation of the apparent activation energy depends on the ratio $T_{g}/ΔT_{g}$, which explains the existence of two types of glasses strong and fragile glasses. The fragility can be re-interpreted as an indication of the degree of increase in the energy barrier when approaching $T_{g}$ from high temperatures. Since no divergence in viscosity was observed below $T_{g}$, it is unlikely that a transition occurs at $T_{0}$.
description: 23 pages, 5 figures
Claudia Höhl (Hrsg.): Frauenwelten. Die Klöster Heiningen und Dorstadt
Creators: name: Eberl, Immo
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 2024

description: .
description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 41 (2022): Rottenburger Jahrbuch für Kirchengeschichte, Band 41
Branes in hearts with perverse sheaves
Creators: name: Mukhopadhyay, Subir
name: Ray, Koushik
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Various topological properties of D-branes in the type--IIA theory are captured by the topologically twisted B-model, treating D-branes as objects in the bounded derived category of coherent sheaves on the compact part of the target space. The set of basic D-branes wrapped on the homology cycles of the compact space are taken to reside in the heart of t-structures of the derived category of coherent sheaves on the space at any point in the Kähler moduli space. The stability data entails specifying a t-structure along with a grade for sorting the branes. Considering an example of a degenerate Calabi-Yau space, obtained via geometric engineering, that retains but a projective curve as the sole non-compact part, we identify the regions in the Kähler moduli space of the curve that pertain to the different t-structures of the bounded derived category of coherent sheaves on the curve corresponding to the different phases of the topological branes.
description: 21 pages, LaTeX, references added, cosmetic changes
Xanavtsíip and personal statements
Creators: name: Cachora, Pete
name: Halpern, Abraham M.
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2023
Subjects: subject: yum

description: 2 WAV files. Date range represents each side of tape. Side A labeled May 3, Side B May 1. For associated notebooks, see Margaret Langdon Papers (Bancroft Library), carton 10, folders 1-3. Digitization by The Audio Archive (Burlingame, California).