cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Bouncing universe with the non-minimally coupled quintom matter on the warped DGP Brane
Creators: name: Nozari, Kourosh
name: Setare, M R
name: Azizi, Tahereh
name: Akhshabi, Siamak
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct a quintom dark energy model with two non-minimally coupled scalar fields, one quintessence and the other phantom field, confined on the warped DGP brane. We study some important issues such as phantom divide line crossing, existence of the bouncing solutions and the stability of the solutions in this framework. We show that this model accounts for crossing of the phantom divide line and realization of the bouncing solutions. This model allows for stability of the solutions in separate regions of the $ω$-$ω'$ phase-plane.
description: 15 pages, 5 figures
title: Generalized Laplacian Positional Encoding for Graph Representation Learning
Creators: name: Maskey, Sohir
name: Parviz, Ali
name: Thiessen, Maximilian
name: Stärk, Hannes
name: Sadikaj, Ylli
name: Maron, Haggai
Publisher: name: TU Wien
Year: 2022
Subjects: Machine Learning
Graph Neural Networks
Positional Encoding
Graph Laplacian

description: Graph neural networks (GNNs) are the primary tool for processing graph-structured data. Unfortunately, the most commonly used GNNs, called Message Passing Neural Networks (MPNNs) suffer from several fundamental limitations. To overcome these limitations, recent works have adapted the idea of positional encodings to graph data. This paper draws inspiration from the recent success of Laplacian-based positional encoding and defines a novel family of positional encoding schemes for graphs. We accomplish this by generalizing the optimization problem that defines the Laplace embedding to more general dissimilarity functions rather than the 2-norm used in the original formulation. This family of positional encodings is then instantiated by considering p-norms. We discuss a method for calculating these positional encoding schemes, implement it in PyTorch and demonstrate how the resulting positional encoding captures different properties of the graph. Furthermore, we demonstrate that this novel family of positional encodings can improve the expressive power of MPNNs. Lastly, we present preliminary experimental results.
Detection threshold and tolerance level for electric shock in psychopaths
Creators: name: Thorvaldson, Sveinn Albert
Publisher: name: University of British Columbia
Year: 2011

description: Detection threshold (DT) for electric shock under both incentive (IDT; cigarettes) and no-incentive (NIDT) conditions was determined in psychopathic and nonpsychopathic criminals and noncriminal controls (N=14 each group). A modified forced-choice procedure permitted E to vary stimulus intensity from trial to trial in an attempt to counteract boredom or inattentiveness. The use of a constant-current stimulator, a concentric electrode, and monitoring of skin/electrode impedance allowed reasonably precise control over current intensity. There were no differences between groups in NIDT or IDT, a result not consistent with previous findings of relatively high DTs in psychopaths. The result was interpreted in terms of the concept of arousal. An additional result was that IDT was lower than NIDT for all groups. Tolerance level (TL) for shock was also determined in the same groups under both no-incentive (NITL) and incentive (ITL; cigarettes) conditions. Although there was no difference between groups in NITL, psychopaths had a significantly higher ITL than the other groups. The result supported the hypothesis of relatively high stimulus tolerance in psychopaths. An additional result noted was that TL did not correlate with DT, a finding which appears consistent with evidence suggesting that the two parameters have somewhat different response determinants.
Modulus stabilization and IR-brane kinetic terms in gauge-Higgs unification
Creators: name: Maru, Nobuhito
name: Sakamura, Yutaka
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss the modulus stabilization by the Casimir energy and various effects of IR-brane kinetic terms for the gauge fields in a gauge-Higgs unification model in the warped spacetime, where the Wilson line phase $θ_H$ is determined as $θ_H=π/2$. We find that the brane kinetic terms with O(1) coefficients are necessary for the modulus stabilization. On the other hand, large brane kinetic terms can deviate 4D gauge couplings from the standard model values and also cause too light Kaluza-Klein (KK) modes. In the parameter region that ensures the modulus stabilization, the KK gluon appears below 1 TeV, which marginally satisfies the experimental bound. The allowed parameter region will be enlarged in a model where a smaller value of $θ_H$ is realized.
description: 20 pages, 5 figures, typos corrected
Large deviations and ensembles of trajectories in stochastic models
Creators: name: Jack, Robert L
name: Sollich, Peter
Publisher: name: arXiv
Year: 2009
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider ensembles of trajectories associated with large deviations of time-integrated quantities in stochastic models. Motivated by proposals that these ensembles are relevant for physical processes such as shearing and glassy relaxation, we show how they can be generated directly using auxiliary stochastic processes. We illustrate our results using the Glauber-Ising chain, for which biased ensembles of trajectories can exhibit ferromagnetic ordering. We discuss the relation between such biased ensembles and quantum phase transitions.
description: 14 pages, 1 fig
title: The potential of Explainable Artificial Intelligence in Precision Livestock Farming
Creators: name: Hoxhallari, Kejsi
name: Purcell, Warren
name: Neubauer, Thomas
Publisher: name: TU Wien
Year: 2022
Subjects: Artificial Intelligence
Explainability
Animal welfare
Monitoring
Farm management

description: In the discussion on the increasing demand for food, which is to be met by efficient and sustainable increases in productivity, animal welfare is becoming increasingly important. Animal health issues must be identified to prevent epidemics that significantly impact the economic performance of farms or even cause societal harm. The use of cutting-edge technologies (IoT, sensors, Big Data processing, etc.) is increasingly enabling early intervention in livestock farming to curb productivity losses through real-time monitoring, alerts, and decision support. The ubiquity of these technological solutions has enabled stakeholders to create more robust agricultural supply chains, that deliver sustainable nutrition for a growing population. However, the increasing use of Artificial Intelligence (AI), which is responsible for many of the current breakthroughs in Precision Livestock Farming (PLF) and agriculture in general, has meant that modern decision-support solutions have increasingly transitioned toward black box systems. It has become apparent that a gap exists between efforts to develop more advanced machine learning models, and the growing demands for ethical assessment and transparency in agriculture decision-making. Explainable Artificial Intelligence (XAI) is one such solution that could prove effective in overcoming the current limitations of black-box models, by allowing the decision-making process of such models to be explored. Through a literature review, we evaluate the potential of XAI in various agricultural use cases and demonstrate the potential benefits of its application to precision livestock management.
Programming and managing data-driven applications between the edge and the cloud
Creators: name: Gibert Renart, Eduard
Publisher: name: No Publisher Supplied
Year: 2020

description: Due to the proliferation of the Internet of Things (IoT), the number of devices connected to the Internet is growing. These devices are generating large volumes of data at the edge of the infrastructure. According to International Data Corporation (IDC) predictions by 2025 the worldwide data will reach 180 zettabytes (ZB), and more than half of that data will come from IoT sensors. Although the generated data provides great potential for science and society, identifying and processing relevant data points hidden in streams of unimportant data, and doing this in near real-time, remains a significant challenge. The prevalent model of moving data from the edge to the cloud of the network is becoming unsustainable, resulting in an impact on latency, network congestion, storage cost and privacy.These observations can be leveraged to design hybrid architectures that can leverage both the edge and the cloud resources to process the data in a timely manner. Although the cloud is better suited to perform heavier (resource intensive) analysis, such as processing historical events and very large datasets, edge devices can support real-time analytics that consider the temporal and spatial characteristics of IoT data. While edge processing can benefit IoT applications, edge resources are typically constrained in their capabilities. In addition integrating edge computing can also add complexity to applications, especially when they need to include policies that govern what kind of data is processed and analyzed at the edge and what is sent to cloud.To address these challenges, this dissertation presents an IoT Edge Framework, called R-Pulsar, that extends cloud capabilities to local devices and provides a programming model for deciding what, when, where and how data get collected and processed. This thesis makes the following contributions: (1) A content- and location-based programming abstraction for specifying what data gets collected and where the data gets analyzed. (2) A rule-based programming abstraction for specifying when to trigger data-processing tasks based on data observations. (3) A programming abstraction for specifying how to split a given dataflow and place operators across edge and cloud resources. (4) An operator placement strategy that aims to minimize an aggregate cost which covers the end-to-end latency (time for an event to traverse the entire dataflow), the data transfer rate (amount of data transferred between the edge and the cloud) and the messaging cost (number of messages transferred between edge and the cloud). (5) Performance optimizations on the data-processing pipeline in order to achieve real-time performance on constrained devices. The applicability of this work to real-world IoT applications is validated through a series of experiments in which shows that R-Pulsar can reduce the bandwidth consumptionbetween the edge and the cloud by up to 82% and obtain results 40% faster than the traditional approach of moving all the data to the cloud.
Lattice vs. continuum theory of the periodic Heisenberg chain
Creators: name: Bortz, Michael
name: Karbach, Michael
name: Schneider, Imke
name: Eggert, Sebastian
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We consider the detailed structure of low energy excitations in the periodic spin-1/2 XXZ Heisenberg chain. By performing a perturbative calculation of the non-linear corrections to the Gaussian model, we determine the exact coefficients of asymptotic expansions in inverse powers of the system length N for a large number of low-lying excited energy levels. This allows us to calculate eigenenergies of the lattice model up to order order N^-4, without having to solve the Bethe Ansatz equations. At the same time, it is possible to express the exact eigenstates of the lattice model in terms of bosonic modes.
description: 17 pages, 8 Figures. The latest version can be found at http://www.physik.uni-kl.de/eggert/papers/index.html
A Computational Analysis of Galactic Exploration with Space Probes: Implications for the Fermi Paradox
Creators: name: Cotta, Carlos
name: Morales, Álvaro
Publisher: name: arXiv
Year: 2009
Subjects: subject: Popular Physics (physics.pop-ph)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Temporal explanations to the Fermi paradox state that the vast scale of the galaxy diminishes the chances of establishing contact with an extraterrestrial technological civilization (ETC) within a certain time window. This argument is tackled in this work in the context of exploration probes, whose propagation can be faster than that of a colonization wavefront. Extensive computational simulations have been done to build a numerical model of the dynamics of the exploration. A probabilistic analysis is subsequently conducted in order to obtain bounds on the number of ETCs that may be exploring the galaxy without establishing contact with Earth, depending on factors such as the number of probes they use, their lifetime and whether they leave some long-term imprint on explored systems or not. The results indicate that it is unlikely that more than ~10^2-10^3 ETCs are exploring the galaxy in a given Myr, if their probes have a lifetime of 50 Myr and contact evidence lasts for 1 Myr. This bound goes down to ~10 if contact evidence lasts for 100 Myr, and is also shown to be inversely proportional to the lifetime of probes. These results are interpreted in light of the Fermi paradox and are compatible with non-stationary astrobiological models in which a few ETCs have gradually appeared in the Fermi-Hart timescale.
description: 14 pages, 6 figures
A quantum Bose-Hubbard model with evolving graph as toy model for emergent spacetime
Creators: name: Hamma, Alioscia
name: Markopoulou, Fotini
name: Lloyd, Seth
name: Caravelli, Francesco
name: Severini, Simone
name: Markstrom, Klas
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a toy model for interacting matter and geometry that explores quantum dynamics in a spin system as a precursor to a quantum theory of gravity. The model has no a priori geometric properties, instead, locality is inferred from the more fundamental notion of interaction between the matter degrees of freedom. The interaction terms are themselves quantum degrees of freedom so that the structure of interactions and hence the resulting local and causal structures are dynamical. The system is a Hubbard model where the graph of the interactions is a set of quantum evolving variables. We show entanglement between spatial and matter degrees of freedom. We study numerically the quantum system and analyze its entanglement dynamics. We analyze the asymptotic behavior of the classical model. Finally, we discuss analogues of trapped surfaces and gravitational attraction in this simple model.
description: 23 pages, 6 figures; updated to published version
title: Funktional-ästhetische Ansprüche an das Stadtparterre – oder – das Parterre als Seismograph für die Schönheit der Stadt?
Creators: name: Psenner, Angelika
Publisher: name: TU Wien
Year: 2023
Subjects: Stadtparterre
Erdgeschoss
Öffentlicher Raum
Nutzungsmischung
Produktive Stadt
Stadt der kurzen Wege

description: „Zierbäume sind standsicher aufzustellen und in gefälliger Form zu erhalten“ – dieses wiederkehrende Zitat findet sich als formulierte Auflage in sogenannten Platzzinsgenehmigungen, die von Seiten der Wiener Stadtverwaltung in dieser Form vornehmlich in den 1980er und 1990er Jahren ausgestellt wurden. Dokumente dieser Art, welche im Rahmen des aktuell am Fachbereich Städtebau unter der Leitung der Autorin durchgeführten Forschungsprojekts „StadtParterre, Wien“ ausgehoben wurden, belegen die durch die Stadt verwaltete und geleitete Gestaltung des Parterres. Das Zitat führte zur vorliegenden Abhandlung zweier Fragestellungen: Kann das Parterre als Seismograph für die Schönheit der Stadt bewertet werden? Und, wenn ja, welche funktional-ästhetischen Ansprüche müssen aus stadtplanerischer Sicht – folglich – an das StadtParterre gestellt werden? Die sozio-architektonische Erhebung „Wahrnehmung im urbanen öffentlichen Raum“ belegt, dass der städtische Raum, den eine Straße und ihre Bebauung umschreiben Wahrnehmung und Handeln der StraßenbenutzerInnen maßgeblich beeinflusst. Sie dokumentiert außerdem, dass speziell die Perzeption von Erdgeschoß und Straßenraum im Vordergrund stehen, wenn es darum geht das Bild der Stadt zu konstituieren. Damit können wir uns im weiteren Textverlauf der Diskussion der Frage nach den zu stellenden funktional-ästhetischen Ansprüchen zuwenden. Die eingangs angeführte aktuelle Studie beschäftigt sich mit der Erforschung des Wiener StadtParterres; wobei in erster Linie die historische, mikrostrukturelle Situation dem aktuellen baulichen und nutzungstechnischen Zustand gegenübergestellt wird. Über diese morphologische Herangehensweise erfasst die Vergleichsstudie Veränderungen über eine Zeitspanne von einem Jahrhundert – um sie letztendlich in Bezug auf ihre stadtsystemischen Auswirkungen zu analysieren.
On Shephard Groups with Large Triangles
Creators: name: Weiss, Uri
Publisher: name: arXiv
Year: 2009
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20F65, 20F06

description: Shephard groups are common extensions of Artin and Coxeter groups. They appear, for example, in algebraic study of manifolds. An infinite family of Shephard groups which are not Artin or Coxeter groups is considered. Using techniques form small cancellation theory we show that the groups in this family are bi-automatic.
description: 30 pages, 11 PDF figures
Aspects of modernization in Japan : the adaptive and transformation processes of late Tokugawa society
Creators: name: Ujimoto, Koji Victor
Publisher: name: University of British Columbia
Year: 2011

description: The main task of this study was to examine the proposition that the modernization processes of Japan had commenced during the late Tokugawa period (1804-1867) and that the impetus to social change was not concentrated solely in the post-Meiji Restoration (1868) period. A survey of contemporary literature on modernization enabled us to select a suitable working definition of modernization. For analytical purposes, modernization was defined in terms of the adaptive and reforming efforts by the late Tokugawa ideologues. The definition implied nothing specific about the component processes involved and this permitted us to be free in selecting the component actions within the modernization process. The study of the adaptive and transformation processes consisted of an analysis of five biographies written in Japanese and representative of the ideologues of the late Tokugawa period. For our investigation, the method of content analysis was employed. This allowed the extraction of desired data according to explicitly formulated and systematic rules. The coding scheme employed to analyze the biographical material was designed taking into account our basic proposition. The process of assigning extracted data into the appropriate categories consisted of a dichotomization process whereby the data was recorded in mutually exclusive categories. The interpretative categories selected for content analysis were not based on a specific theory purporting to explain certain aspects of social change but it suggested a model which lent clarity to the study of the linkage between causal forces (societal conditions and formative factors) and the ideologue’s structures of activities. In this model, the underlying assumption was that the causal forces were linked to the observable variations by the ideologue's attitudes, orientations, and concepts. This assumption was supported by the data and the structure of activities gave rise to patterns which tended to be similar although the structural processes themselves varied from ideologue to ideologue. On the basis of our investigation, we concluded that the data obtained from the content analysis of five biographies supported our proposition that the adaptive and transformation processes of modern Japan established their roots during the late Tokugawa period and that the impetus to social change was not concentrated solely in the post Meiji Restoration period.
title: Maximally Expressive GNNs for Outerplanar Graphs
Creators: name: Bause, Franka
name: Jogl, Fabian
name: Indri, Patrick
name: Drucks, Tamara
name: Penz, David
name: Kriege, Nils
name: Gärtner, Thomas
name: Welke, Pascal
name: Thiessen, Maximilian
Publisher: name: TU Wien
Year: 2023
Subjects: outerplanar graphs
expressive graph
representation
learning

description: We propose a linear time graph transformation that enables the Weisfeiler-Leman (WL) test and message passing graph neural networks (MPNNs) to be maximally expressive on outerplanar graphs. Our approach is motivated by the fact that most pharmaceutical molecules correspond to outerplanar graphs. Existing research predominantly enhances the expressivity of graph neural networks without specific graph families in mind. This often leads to methods that are impractical due to their computational complexity. In contrast, the restriction to outerplanar graphs enables us to encode the Hamiltonian cycle of each biconnected component in linear time. As the main contribution of the paper we prove that our method achieves maximum expressivity on outerplanar graphs. Experiments confirm that our graph transformation improves the predictive performance of MPNNs on molecular benchmark datasets at negligible computational overhead.
description: We propose a linear time graph transformation that enables the Weisfeiler-Leman (WL) test and message passing graph neural networks (MPNNs) to be maximally expressive on outerplanar graphs. Our approach is motivated by the fact that most pharmaceutical molecules correspond to outerplanar graphs. Existing research predominantly enhances the expressivity of graph neural networks without specific graph families in mind. This often leads to methods that are impractical due to their computational complexity. In contrast, the restriction to outerplanar graphs enables us to encode the Hamiltonian cycle of each biconnected component in linear time. As the main contribution of the paper we prove that our method achieves maximum expressivity on outerplanar graphs. Experiments confirm that our graph transformation improves the predictive performance of MPNNs on molecular benchmark datasets at negligible computational overhead.
The impact of binary star yields on the spectra of galaxies
Creators: name: Sansom, A. E.
name: Izzard, R. G.
name: Ocvirk, P.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: One of the complexities in modelling integrated spectra of stellar populations is the effect of interacting binary stars besides type Ia supernovae (SNeIa). These include common envelope systems, CVs, novae, and are usually ignored in models predicting the chemistry and spectral absorption line strengths in galaxies. In this paper predictions of chemical yields from populations of single and binary stars are incorporated into a galactic chemical evolution model to explore the significance of the effects of these other binary yields. Effects on spectral line strengths from different progenitor channels of SNeIa are also explored. Small systematic effects are found when the yields from binaries, other than SNeIa, are included, for a given star formation history. These effects are, at present, within the observational uncertainties on the line strengths. More serious differences can arise in considering different types of SNIa models, their rates and contributions.
description: 15 pages, 5 figures, 4 tables, accepted for publication in MNRAS
Improvements in cardiac segmentation for cross-modality domain adaptation
Creators: name: Gindra, Rushin Hitesh
Publisher: name: No Publisher Supplied
Year: 2020

description: In medical image computing, the problem of heterogeneous domain shift is quite common and severe, causing many deep convolutional networks to under-perform on various imaging modalities. Retraining the network is difficult since annotating the new domain data is prohibitively expensive, specifically in medical areas that require expertise. While recent works show approaches to tackle this problem using unsupervised domain adaptation, segmentation modules in such methods can be improved vastly. Our implementation provides a segmentation improvement on the current state-of-the-art framework, Synergistic Image and Feature Adaptation(SIFA). We revisit atrous spatial pyramid pooling while using convolutional features as well as image features for multi-scale object segmentation. We have validated the effectiveness of the improvement on the framework using the challenging application of cross-modality segmentation of cardiac structures. To demonstrate the robustness of the module, extensive experiments have been performed on Long-Axis(MMWHS) cross-modal cardiac segmentation tasks.
Chaotic universe in the z=2 Hovava-Lifshitz gravity
Creators: name: Myung, Yun Soo
name: Kim, Yong-Wan
name: Son, Woo-Sik
name: Park, Young-Jai
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The deformed z=2 Horava-Lifshitz gravity with coupling constant w leads to a nonrelativistic "mixmaster" cosmological model. The potential of theory is given by the sum of IR and UV potentials in the ADM Hamiltonian formalism. It turns out that adding the UV-potential cannot suppress chaotic behaviors existing in the IR-potential.
description: 7 pages, 5 figures, version to appear in PRD
Observations Morphopathologiques Dans La Maladie Hepatocerebrale Neonatale Chez Les Veaux
Creators: name: Baba, A. I.
name: Rotaru, O.
name: Ghergariu, S.
name: Spinu, O.
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1992

description: Necropsy was performed on 4 calves some hours after their birth and subsequently at the age of 36 hours, 3 days and 6 days, and which evidenced diarrhoea and nervous troubles during their life. The macroscopic examination revealed meningoencephalic congestion, leptomeningeal oedema and of the nervous matter, and increased quantity of cephalorachidian fluid. Catarrhal or catarrhal-haemorrhagic gastroenteritis lesions were detected at the level of the alimentary canal. The liver was slightly discoloured showing white-nacreus proliferative strips of the connective tissue. The microscopy revealed ovoid or round shaped clear marked vacuoles in the white matter of the deep cerebral hemispheres, an aspect seen in the nervous matter around the capillaries as well. Cytoplasmic vacuolizations were also detected inside the oligodendroglia, associated with karryopyknosis and karyorrhexis together with a numerical increase of microglia. A spongy appearance of vacuolized white matter was seen in the cerebellum, the bulb (medulla oblongata) and the tubercula. A fatty infiltration was seen at the level of the liver, and a turbid intumescence of the hepatocytes. All these conditions evidenced a mesenchymal reaction as well perilobular, interlobular and around the centrolobular vena.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1992: Volume 3
Transverse Mercator with an accuracy of a few nanometers
Creators: name: Karney, Charles F. F.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Implementations of two algorithms for the transverse Mercator projection are described; these achieve accuracies close to machine precision. One is based on the exact equations of Thompson and Lee and the other uses an extension of Krueger's series for the projection to higher order. The exact method provides an accuracy of 9 nm over the entire ellipsoid, while the errors in the series method are less than 5 nm within 3900 km of the central meridian. In each case, the meridian convergence and scale are also computed with similar accuracy. The speed of the series method is competitive with other less accurate algorithms and the exact method is about 5 times slower.
description: LaTeX, 10 pages, 3 figures. Includes some revisions. Supplementary material is available at http://geographiclib.sourceforge.net/tm.html
Deterministic entanglement of ions in thermal states of motion
Creators: name: Kirchmair, G.
name: Benhelm, J.
name: Zähringer, F.
name: Gerritsma, R.
name: Roos, C. F.
name: Blatt, R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We give a detailed description of the implementation of a Molmer-Sorensen gate entangling two Ca+ ions using a bichromatic laser beam near-resonant with a quadrupole transition. By amplitude pulse shaping and compensation of AC-Stark shifts we achieve a fast gate operation without compromising the error rate. Subjecting different input states to concatenations of up to 21 individual gate operations reveals Bell state fidelities above 0.80. In principle, the entangling gate does not require ground state cooling of the ions as long as the Lamb-Dicke criterion is fulfilled. We present the first experimental evidence for this claim and create Bell states with a fidelity of 0.974(1) for ions in a thermal state of motion with a mean phonon number of =20(2) in the mode coupling to the ions' internal states.
description: 18 pages, 9 figures (author name spelling corrected)
Encephalopathie Hepatique, Un Nouveau Syndrome Neonatal Chez Les Veaux
Creators: name: Ghergariu, S.
name: Baba, A. I.
name: Gorgan, L.
name: Rotaru, O.
name: Spinu, O.
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1992

description: In a farm of dairy cows, during an outbreak of neonatal diarrhea, the following nervous disturbances were observed in 3 calves without diarrhea and in 1 calf with diarrhea: ataxia, recumbency, abnormal positions of the head, hyperexcitability, an unusual and persistent bellowing and finally a comatose status. No bacterial or virusological implications were confirmed. The blood ammonia in 2 sick calves (6 hours and 3 days of age) was 134,3 and 200,6 ) μg/dl respectively; the levels obtained in 11 healthy newborn calves 6-24 hours of age in a farm free of neonatal diarrhea were comprised between 1,03 and 52,26 μg/dl. The hepatic vitamin A in the above mentioned calves was 65,72 and 49,29 i.u./g. The necropsy performed in the 2 calves after euthanasy as well as in 2 other dead calves revealed hepatic steatosis and fibrosis and spongy transformation of the white matter in the brain, the brain stem, cerebellum and medulla oblongata. A diagnosis of hepatic encephalopathy was made as a result of the hyperammonaemia and the spongiosis of the white maiter of the C.N.S. The possible involvement of an intrauterine exposition to the toxic effect of the high level of alcohols (16%) detected in the corn silage fed to the cows is suspected. Article in French, English summary on PDF
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1992: Volume 3
title: Non-Radical Chemistries for Lithographic 3D Printing
Creators: name: Ehrmann, Katharina
name: Kojic, Danijela
name: Schandl, Stephan
name: Wolff, Raffael
name: Koch, Thomas
name: Stampfl, Jürgen
name: Eren Mert, Tugce Nur
name: Feist, Florian
name: Barner-Kowollik, Christopher
name: Liska, Robert
Publisher: name: TU Wien
Year: 2023
Subjects: Hot Lithography
Radical-free Polymerization
Polymer Network

description: While printing formulation variability allows for some flexibility of material properties in stereolithographic 3D printing via free radical photopolymerization, this flexibility is considerably restricted by a narrow processing window. Recent engineering developments have enlarged this processing window, which creates an avenue towards utilization of radical-free polymerization mechanisms in lithographic 3D printing. For example, by increasing printing temperature in Hot Lithography we were able to produce SLA-printed parts via ionic photopolymerization and polycondensation. Clever utilization of different light sources for the printing process are another possibility to make new chemistry accessible for 3D printing. We have also designed systems where non-radical, wavelength-selective reactions are utilized for network formation.
On active region loops: Hinode/EIS observations
Creators: name: Tripathi, D.
name: Mason, H. E.
name: Dwivedi, B. N.
name: Del Zanna, G.
name: Young, P. R.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Coronal loops are fundamental building blocks of the solar active regions and the corona. Therefore, a clear understanding of the physics of coronal loops will help us understand the physics of active region heating in particular and coronal heating in general. This requires a precise measurement of physical quantities such as electron densities and filling factors, temperatures, and flows in coronal loops. In this paper we have carried out an investigation of a spatially well resolved coronal loop using the EIS onboard Hinode to measure the above mentioned physical quantities. Based on this study we find that a nano-flare model could explain most of the observed characteristics of this loop.
description: 27 pages, 7 figures, Accepted in ApJ
Aortic - Iliac Thrombosis in Bovine
Creators: name: Ojok, Lonzy
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1992

description: Blood is maintained in a fluid form within the vascular system by the body maintaining a balance between the clotting mechanism, fibrin and platelets deposition on the one hand and the activity of fibrinolytic enzymes on the other. Thrombosis occurs if the clotting mechanism and the fibrin and platelets deposition within the vascular system become excessive and exceeds the fibrinolytic activity of the fibrinolysin. Three factors known as the Virchow's triads consisting of damage to vessel wall and endothelium, changes in the blood flow and changes in the composition of the blood are generally considered to constitute the main pathogenetic mechanism of thrombosis. Because of the low blood pressure and the nature of the blood flow on the veinous side of the circulation, veinous thrombosis occurs more commonly than arterial thrombosis. Arterial thrombosis involving either the aorta, cranial messenteric artery, coronary artery or iliac arteries are commonly known to occur in horses infected with Strongylus vulgaris, in cats with idiopathic cardiomyopathy and in man due to atheriosclerosis or atheromas. In cattle most cases of thrombosis reported involved the caudal vena cava (1,2,3,). Thrombosis affecting smaller arteries and arterioles in cattle are known to occur in malignant catarrhal fever as the result of fibrinoid degeneration and arteritis or arteriolitis and in infection with Haemophilus somnus which causes ischaemic septicaemic thrombomeningoencephalitis. Thrombosis affecting larger arterial blood vessels are rare. This paper describes unique cases of extensive thrombosis of the aorta, it's branches and the iliac arteries in three cows examined at postmortem.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1992: Volume 3
The Formation of High Redshift Submillimeter Galaxies
Creators: name: Narayanan, Desika
name: Hayward, Christopher C.
name: Cox, Thomas J.
name: Hernquist, Lars
name: Jonsson, Patrik
name: Younger, Joshua D.
name: Groves, Brent
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We describe a model for the formation of \zsim 2 Submillimeter Galaxies (SMGs) which simultaneously accounts for both average and bright SMGs while providing a reasonable match to their mean observed spectral energy distributions (SEDs). By coupling hydrodynamic simulations of galaxy mergers with the high resolution 3D polychromatic radiative transfer code Sunrise, we find that a mass sequence of merger models which use observational constraints as physical input naturally yield objects which exhibit black hole, bulge, and H2 gas masses similar to those observed in SMGs. The dominant drivers behind the 850 micron flux are the masses of the merging galaxies and the stellar birthcloud covering fraction. The most luminous (S850 ~ 15 mJy) sources are recovered by ~10^13 Msun 1:1 major mergers with a birthcloud covering fraction close to unity, whereas more average SMGs ~5-7 mJy) may be formed in lower mass halos ~5x10^12 Msun. These models demonstrate the need for high spatial resolution hydrodynamic and radiative transfer simulations in matching both the most luminous sources as well as the full SEDs of SMGs. While these models suggest a natural formation mechanism for SMGs, they do not attempt to match cosmological statistics of galaxy populations; future efforts along this line will help ascertain the robustness of these models.
description: MNRAS Accepted; Revised version includes expanded discussion of simulated radio properties of SMGs
Report from the Mentorship Programme and the Pilot Newsletter
Creators: name: Bornatici, Christina
name: Brvar, Irena Vipavc
name: Alfredsson, Iris
Publisher: name: Zenodo
Year: 2021
Subjects: Mentorship
newsletter
CESSDA

description: Report elaborating on the activities which took place within the Mentorship Programme and the Newsletter for service data professionals.
Effets Du Blocage Des Recepteurs Serotonergiques De Type 2 Sur Les Modifications Fonctionnelles Respiratoires Induites Par Un Challenge A La Serotonine Chez Le Bovin
Creators: name: Linden, A.
name: Desmecht, D.
name: Amory, H.
name: Rollin, F.
name: Lekeux, P.
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1992

description: The effects of exogenous 5-hydroxytryptamine (5-HT) on pulmonary bovine function i.e. , hyperventilation, diffuse bronchoconstriction and pulmonary artery hypertension, have been previously reported. The purpose of the present investigation was to study, in vivo, the effects of a 5-HT challenge preceeded by treatment with a selective blocking agent of 5-HT2 receptors (R 50970) on pulmonary bovine function. Article in French, English and German summaries on PDF
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1992: Volume 3
title: A Multilevel Optimization Approach for Large Scale Battery Exchange Station Location Planning
Creators: name: Jatschka, Thomas
name: Rodemann, Tobias
name: Raidl, Günther R.
Publisher: name: TU Wien
Year: 2023
Subjects: E-mobility
mixed integer linear programming
multilevel optimization

description: We propose a multilevel optimization algorithm (MLO) for solving large scale instances of the Multi-Period Battery Swapping Station Location Problem (MBSSLP), i.e., a problem for deciding the placement of battery swapping stations in an urban area. MLO generates a solution to an MBSSLP instance in three steps. First the problem size is iteratively reduced by coarsening. Then, a solution to the coarsest problem instance is determined, and finally the obtained solution is projected to more fine grained problem instances in reverse order until a solution to the original problem instance is obtained. We test our approach on benchmark instances with up to 10000 areas for placing stations and 100000 user trips. We compare MLO to solving a mixed integer linear program (MILP) in a direct way as well as solving the instances with a construction heuristic (CH). Results show that MLO scales substantially better for such large instances than the MILP or the CH.
Leadership and power in an ethnic community
Creators: name: Tryggvason, Gustav
Publisher: name: University of British Columbia
Year: 2011

description: One of the significant problems investigated by social scientists in recent years is the question of how power is used in the community. The presence of power has generally been taken for granted; with the main research and analytical effort being concentrated on identifying and explaining the actions of those members of the community, i.e., the leaders, who are thought to possess power. Their ability to operate effectively within the community is generally interpreted as a reflection of their use of power, i.e., their ability to impose their will upon others, with or without having to overcome direct or indirect opposition in the process of doing so. Such studies as have been carried out have usually been conducted in communities which are easily identified as communities, such as a city or a town. There are, however, other types of communities, one of which is the ethnic community or sub-community. Ethnic communities, such as those generally found in Canada, are a result of the desire of the members of specific ethnic groups to continue to share some or all of their activities with people of the same origin. In such communities the actions of the leaders may be based on several factors, none of which is comparable to the power which leaders in other types of communities may possess or are believed to possess. Extensive field work was conducted in the Icelandic ethnic community in the Greater Vancouver area, beginning in the fall of 1965 and continuing for some three years. Data was gathered initially through interviews with the members of this community and subsequently by direct observation of and participation in the activities of this community and its leaders. The analysis of the data obtained indicates that the leaders of such a sub-community do not and cannot relie upon an ability to impose their will upon others. Put in other words, the leaders of such a sub-community lack power. Their ability to operate effectively is largely a result of the fact that their actions vis-a-vis the community are restricted to those which will receive voluntary support from the members of the community.
An Assessment of the Quality of Practice-Generated Computerized Medical Records as a Data Source For Research Into Pregnancy Loss in Dairy Cows
Creators: name: Mulder, Carol
name: Bonnett, Brenda
name: Page, Paul
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1992

description: This paper discusses the suitability of medical records as a source of data for research into the problem of pregnancy loss in dairy cows. The process of converting the computerized veterinary practice records into analyzable data is described. Various measures of data quality are discussed including the percent of missing, incorrect and outlier values in the final data set. Finally, descriptive statistics are calculated to demonstrate the similarity between the population of dairy cows described by the medical records and the target population of commercial dairy cows. This paper demonstrates that the positive aspects of practice-generated computerized medical records (volume of data, similarity to the target population) compensate for the disadvantages of poor case definition and missing data. The analysis of these data to investigate pregnancy loss in dairy cattle is currently under way and will be reported elsewhere.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1992: Volume 3
Taxonomy and phylogenetic systematics of the Indo-Pacific Whip-Tailed Stingray genus Himantura Muller & Henle 1837 [Chondrichthyes: Myliobatiformes: Dasyatidae]
Creators: name: Manjaji, BM
Publisher: name: University Of Tasmania
Year: 2023
Subjects: Animal systematics and taxonomy

description: No description available
Thermodynamic Bubble Ansatz
Creators: name: Alday, Luis F.
name: Gaiotto, Davide
name: Maldacena, Juan
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Motivated by the computation of scattering amplitudes at strong coupling, we consider minimal area surfaces in AdS_5 which end on a null polygonal contour at the boundary. We map the classical problem of finding the surface into an SU(4) Hitchin system. The polygon with six edges is the first non-trivial example. For this case, we write an integral equation which determines the area as a function of the shape of the polygon. The equations are identical to those of the Thermodynamics Bethe Ansatz. Moreover, the area is given by the free energy of this TBA system. The high temperature limit of the TBA system can be exactly solved. It leads to an explicit expression for a special class of hexagonal contours.
description: 55 pages, 22 figures. v2: references added, V3: small typo fixed
Subclinical Ketosis and Milk Production in Finnish Dairy Cows
Creators: name: Miettinen, P. V. A.
name: Setälä, J. J.
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1992

description: Many dairy cows are unable to consume sufficient food to meet their production and maintenance requirements in early lactation and mobilize body reserves for milk production. Bovine ketosis results from an input / output imbalance in energy metabolism. The economic consequences of disturbancies due to bovine ketosis are of great importance. The subsequent reproductive performance (5) and the energy balance (2) are negatively associated with milk yield and so the energy intake is positively related to reproductive performance (2 , 4, 7). In contrast to measured energy balance (energy balance = consument energy - required energy) subclinical ketosis; a stage of low energy balance, reflected as elevated levels of ketone bodies, reduced milk yield (3) as well as negatively affects reproductive performance in dairy cows (6, 7, 8), thus a cow with a low milk production should be less fertile, too. The aim of this study was to determine the relationship between milk production and subclinical ketosis in Finnish dairy cattle.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1992: Volume 3
Additional file 1 of Low neutrophil-to-lymphocyte and platelet-to-lymphocyte ratios predict favorable outcomes after endovascular treatment in acute basilar artery occlusion: subgroup analysis of the BASILAR registry
Creators: name: Liao, Jia sheng
name: Guo, Changwei
name: Zhang, Bo
name: Yang, Jie
name: Zi, Wenjie
name: Li, Jing lun
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Science Policy
subject: Hematology
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1: Table S1. The association between NLR, PLR value and favorable outcome. Figure S1. Predicted probability of favorable outcome by neutrophil to lymphocyte ratio, platelet to lymphocyte ratio. Figure S2. Association of predicted value of favorable outcome between neutrophil to lymphocyte ratio and platelet to lymphocyte ratio. Figure S3. Receiver operating characteristic curves. Figure S4. The Kaplan-Meier curve.