cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Dislocation Density-Based Plasticity Model from Massive Discrete Dislocation Dynamics Database
Creators: name: Akhondzadeh, Sh.
name: Sills, Ryan B.
name: Bertin, Nicolas
name: Cai, Wei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a dislocation density-based strain hardening model for single crystal copper through a systematic coarse-graining analysis of more than 200 discrete dislocation dynamics (DDD) simulations of plastic deformation under uniaxial tension. The proposed constitutive model has two components: a generalized Taylor relation connecting resolved shear stresses to dislocation densities on individual slip systems, and a generalized Kocks-Mecking model for dislocation multiplication. The DDD data strongly suggests a logarithmic dependence of flow stress on the plastic shear strain rate on each slip system, and, equivalently, an exponential dependence of the plastic shear strain rate on the resolved shear stress. Hence the proposed generalized Taylor relation subsumes the Orowan relation for plastic flow. The DDD data also calls for a correction to the Kocks-Mecking model of dislocation multiplication to account for the increase of dislocation density on slip systems with negligible plastic shear strain rate. This is accomplished by allowing the multiplication rate on each slip system to include contributions from the plastic strain rates of the two coplanar slip systems. The resulting constitutive model successfully captures the strain hardening rate dependence on the loading orientation as predicted by the DDD simulations, which is also consistent with existing experiments.
SPATIAL LABOR MARKETS AND TECHNOLOGY SPILLOVERS - ANALYSIS FROM US MIDWEST
Creators: name: Monchuk, Daniel C.
name: Miranowski, John A.
name: Monchuk, Daniel C.
name: Miranowski, John A.
Publisher: name: Unknown
Year: 2003
Subjects: Labor and Human Capital

description: The primary focus of this paper is the impact of knowledge creation and innovative activity on employment growth. A number of employment growth hypotheses are tested for counties in Iowa, Minnesota, Missouri, Kansas, Nebraska, South Dakota and North Dakota. We assume that new knowledge and innovative activity are embodied in patent filings for the years 1975-2000. Due to the spatial nature of the data, both spatially lagged dependant variables and spatial error models are employed. The results support the importance of knowledge creation and innovative activity as an important factor explaining employment growth in Heartland counties over the 1969-2000 period.
Kerr metric, static observers and Fermi coordinates
Creators: name: Bini, Donato
name: Geralico, Andrea
name: Jantzen, Robert T
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The coordinate transformation which maps the Kerr metric written in standard Boyer-Lindquist coordinates to its corresponding form adapted to the natural local coordinates of an observer at rest at a fixed position in the equatorial plane, i.e., Fermi coordinates for the neighborhood of a static observer world line, is derived and discussed in a way which extends to any uniformly circularly orbiting observer there.
description: 15 page latex iopart class document
On non-minimal complements
Creators: name: Biswas, Arindam
name: Saha, Jyoti Prakash
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 11B13, 05E15, 05B10, 11P70

description: The notion of minimal complements was introduced by Nathanson in 2011. Since then, the existence or the inexistence of minimal complements of sets have been extensively studied. Recently, the study of inverse problems, i.e., which sets can or cannot occur as minimal complements has gained traction. For example, the works of Kwon, Alon--Kravitz--Larson, Burcroff--Luntzlara and also that of the authors, shed light on some of the questions in this direction. These works have focussed mainly on the group of integers, or on abelian groups. In this work, our motivation is two-fold: (i) to show some new results on the inverse problem, (ii) to concentrate on the inverse problem in not necessarily abelian groups. As a by-product, we obtain new results on non-minimal complements in the group of integers and more generally, in any finitely generated abelian group of positive rank and in any free abelian group of positive rank. Moreover, we show the existence of uncountably many subsets in such groups which are "robust" non-minimal complements.
title: B²-Tree
title: Cache-Friendly String Indexing within B-Trees
titleType: Subtitle
Creators: name: Schmeißer, Josef
name: Schüle, Maximilian E.
name: Leis, Viktor
name: Neumann, Thomas
name: Kemper, Alfons
Publisher: name: Gesellschaft für Informatik, Bonn
Year: 2021
Subjects: subject: Indexing
subject: B-tree
subject: String

description: Recently proposed index structures, that combine trie-based and comparison-based search mechanisms, considerably improve retrieval throughput for in-memory database systems. However, most of these index structures allocate small memory chunks when required. This stands in contrast to block-based index structures, that are necessary for disk-accesses of beyond main-memory database systems such as Umbra. We therefore present the B²-tree. The outer structure is identical to that of an ordinary B+-tree. It still stores elements in a dense array in sorted order, enabling efficient range scan operations. However, B²-tree is composed of multiple trees, each page integrates another trie-based search tree, which is used to determine a small memory region where a sought entry may be found. An embedded tree thereby consists of decision nodes, which operate on a single byte at a time, and span nodes, which are used to store common prefixes. This architecture usually accesses fewer cache lines than a vanilla B+-tree as our performance evaluation proved. As a result, the B²-tree is able to answer point queries considerably faster.
Economic Costs of Converting Crude Sunflower Oil to Methyl Esters
Creators: name: Helgeson, Delmer L.
name: Johnson, Dwight S.
name: Helgeson, Delmer L.
name: Johnson, Dwight S.
Publisher: name: Unknown
Year: 1986
Subjects: Resource /Energy Economics and Policy

description: This report is based on research conducted under an Interdisciplinary State Project, ND1439 - Sunflower Oil as an Engine Fuel, with the Departments of Agricultural Economics and Agricultural Engineering cooperating. Previous economic and engineering research directed at small-scale extraction systems, costs, and performance evaluations of sunflower oil-diesel blends led to further investigations covering methyl ester processing, performance, and costs. This report is a continuation of that research effort in evaluating the economic costs in producing methyl ester as an alternative or substitute fuel derived from vegetable oils.
Preserving Dynamic Attention for Long-Term Spatial-Temporal Prediction
Creators: name: Lin, Haoxing
name: Bai, Rufan
name: Jia, Weijia
name: Yang, Xinyu
name: You, Yongjian
Publisher: name: arXiv
Year: 2020
Subjects: subject: Information Retrieval (cs.IR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences
subject: H.4.0; I.2.1

description: Effective long-term predictions have been increasingly demanded in urban-wise data mining systems. Many practical applications, such as accident prevention and resource pre-allocation, require an extended period for preparation. However, challenges come as long-term prediction is highly error-sensitive, which becomes more critical when predicting urban-wise phenomena with complicated and dynamic spatial-temporal correlation. Specifically, since the amount of valuable correlation is limited, enormous irrelevant features introduce noises that trigger increased prediction errors. Besides, after each time step, the errors can traverse through the correlations and reach the spatial-temporal positions in every future prediction, leading to significant error propagation. To address these issues, we propose a Dynamic Switch-Attention Network (DSAN) with a novel Multi-Space Attention (MSA) mechanism that measures the correlations between inputs and outputs explicitly. To filter out irrelevant noises and alleviate the error propagation, DSAN dynamically extracts valuable information by applying self-attention over the noisy input and bridges each output directly to the purified inputs via implementing a switch-attention mechanism. Through extensive experiments on two spatial-temporal prediction tasks, we demonstrate the superior advantage of DSAN in both short-term and long-term predictions.
description: 11 pages, an ACM SIGKDD 2020 paper
Additional file 1 of Targeted gene therapy of nasopharyngeal cancer in vitro and in vivo by enhanced thymidine kinase expression driven by human TERT promoter and CMV enhancer
Creators: name: Cong-Xiang Shen
name: Wen, Zhong
name: Qian, Yu-Hong
name: Mu, Shao-Feng
name: Guan, Xiao-Fang
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Neuroscience
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Marine Biology
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology
subject: FOS: Biological sciences
subject: Computational Biology

description: Authors’ original file for figure 1
Radiative seesaw and degenerate neutrinos
Creators: name: Bajc, Borut
name: Senjanovic, Goran
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The radiative see-saw mechanism of Witten generates the right-handed neutrino masses in SO(10) with the spinorial 16_H Higgs field. We study here analytically the 2nd and 3rd generations for the minimal Yukawa structure containing 10_H and 120_H Higgs representations. In the approximation of small 2nd generation masses and gauge loop domination we find the following results : (1) b-tau unification, (2) natural coexistence between large theta_l and small theta_q, (3) degenerate neutrinos.
description: 4 pages
title: Flexible data partitioning schemes for parallel merge joins in semantic web queries
Creators: name: Warnke, Benjamin
name: Groppe, Sven
name: Rehan, Muhammad Waqas
name: Fischer, Stefan
Publisher: name: Gesellschaft für Informatik, Bonn
Year: 2021
Subjects: subject: Triple store
subject: Partitioning
subject: Parallel Join

description: In the context of the Semantic Web, large amounts of data must be preprocessed and stored so that they can be queried efficiently later. The key technology in this topic are triple stores, in which all information is stored in the form of (subject, predicate and object) triple patterns. Depending on the triple patterns used within the queries, very different value distributions can be observed within these datasets. Currently, these properties are only exploited implicitly during join optimization in the form of histograms or similar technologies. This paper proposes a new way to take advantage of these different distributions using different partitioning schemes at runtime. This means that an optimal partitioning scheme can be used depending on the data access in order to improve query performance. In the experiments we achieve speedups up to a factor of 5.92 in comparison to no partitioning, and a performance improvement of up to 81% compared to a not optimal number of partitions.
Cohomology of Coxeter groups with group ring coefficients: II
Creators: name: Davis, Michael W
name: Dymara, Jan
name: Januszkiewicz, Tadeusz
name: Okun, Boris
Publisher: name: arXiv
Year: 2005
Subjects: subject: Group Theory (math.GR)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 20F55, 20C08, 20E42, 20F65, 20J06, 57M07

description: For any Coxeter group W, we define a filtration of H^*(W;ZW) by W-submodules and then compute the associated graded terms. More generally, if U is a CW complex on which W acts as a reflection group we compute the associated graded terms for H_*(U) and, in the case where the action is proper and cocompact, for H^*_c(U).
description: This is the version published by Algebraic & Geometric Topology on 15 September 2006
Benz, Ernst und Renkewitz, Heinz, Zinzendorf-Gedenkbuch
Creators: name: M.
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 1 Nr. 1 (1952): Ökumenische Rundschau, Band 1, Heft 1
New light on magnetic excitations: indirect resonant inelastic X-ray scattering on magnons
Creators: name: Brink, Jeroen van den
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Recent experiments show that indirect resonant inelastic X-ray scattering (RIXS) is a new probe of spin dynamics. Here I derive the cross-section for magnetic RIXS and determine the momentum dependent four-spin correlation function that it measures. These results show that this technique offers information on spin dynamics that is complementary to e.g. neutron scattering. The RIXS spectrum of Heisenberg antiferromagnets is calculated. It turns out that only scattering processes that involve at least two magnons are allowed. Other selection rules imply that the scattering intensity vanishes for specific transferred momenta ${\bf q}$, in particular for ${\bf q}=0$. The calculated spectra agree very well with the experimental data.
description: 4 pages, 3 figures
Extended slow-light field enhancement in positive/negative-index heterostructures
Creators: name: Foteinopoulou, S.
name: Vigneron, J. P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a bi-waveguide paradigm composed of joined Positive-Index-Material PIM)/Negative-Index-Material (NIM) slabs, demonstrating ultra-slow light propagation stemming from the competing propagation disposition in the PIM and NIM regions. We report for the first time a mesoscopic extended electromagnetic (EM) enhancement covering regions of the order of the free space wavelength, enabled by the slow-light mode in our system. Our dynamic numerical results are consistent with our developed theoretical model, predicting an EM energy accumulation reminiscent of a charging capacitor. Our analysis reveals that spatial compression is not a requirement to EM enhancement in slow-light systems and stresses on the merits of high coupling efficiency, strong temporal compression, monomodality and modal index bandwidth, -all present in our proposed paradigm. Furthermore, we show that the heterostructure waveguide mode is an extra-ordinary entity with a unique energy velocity, that is opposite to the Poynting vector in one of the participant waveguides. We believe these results will inspire new slow-light platforms relevant to the collective harvesting of strong light-matter interactions.
description: 28 pages, 10 figures
title: Tracing the History of the Baltic Sea Oxygen Level
Creators: name: Auge, Tanja
name: Heuer, Andreas
Publisher: name: Gesellschaft für Informatik, Bonn
Year: 2021
Subjects: subject: Long-term Data
subject: Schema Evolution
subject: Provenance
subject: Research Data Management
subject: CHASE

description: In order to guarantee the reproducibility of research results, large research communities, conferences and journals increasingly demand the provision of original research data. Since this is often not possible or desired, a certain tact and sensitivity is needed. With our method, combining provenance and evolution, we can identify the source tuples necessary for the reconstruction of a query result also in temporal databases. To avoid dirty data caused by the inverse evolution, we introduced the what-provenance, which remembers the data types of the source relation.
The Tolman-Bondi--Vaidya Spacetime: matching timelike dust to null dust
Creators: name: Gao, Sijie
name: Lemos, Jose' P. S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The Tolman-Bondi and Vaidya solutions are two solutions to Einstein equations which describe dust particles and null fluid, respectively. We show that it is possible to match the two solutions in one single spacetime, the Tolman-Bondi--Vaidya spacetime. The new spacetime is divided by a null surface with Tolman-Bondi dust on one side and Vaidya fluid on the other side. The differentiability of the spacetime is discussed. By constructing a specific solution, we show that the metric across the null surface can be at least $C^1$ and the stress-energy tensor is continuous.
description: 5 pages, no figure
The effect of hydrogen or methanol premixed fuel on the ignition delay of pilot fuel in dual fuel mode
Creators: name: Parsa, Somayeh
name: Verhelst, Sebastian
Publisher: name: Zenodo
Year: 2023

description: Maritime transport was responsible for 2.9% of anthropogenic global CO2 emissions in 2018, emitting 1,076 million tons of CO2. In the EU, marine transportation accounted for 3-4% of total CO2 emissions and emitted over 144 million tons of CO2 in 2019. In order to reduce greenhouse gas emissions from maritime transport, the European Union has mandated a reduction by 2% as of 2025 and an 80% reduction by 2050 (compared to 2020). One of the ways to achieve the targets is to use renewable fuels such as hydrogen and methanol in marine engines. However, due to their high auto-ignition temperature, they cannot be used as a single fuel in the compression-ignition engines, and diesel pilot injection is required to start ignition. Therefore, the co-combustion of hydrogen-diesel and methanol-diesel in the resulting dual-fuel engines should be well understood. To accurately simulate the combustion of hydrogen-diesel and methanol-diesel in dual-fuel mode, the ignition delay (ID) of the pilot fuel should be carefully estimated in the presence of premixed fuel. In the present work, the ignition delay (ID) for pilot ignited dual-fuel engine operation with hydrogen or methanol is investigated. A constant volume batch reactor numerical setup is used in the open source Cantera code to calculate the effects of premixed fuel on the ID of the pilot fuel. First, suitable chemical kinetic schemes are selected based on experimental data from the literature. Then ID is estimated for different engine-like operating conditions. The effects of different proportions of hydrogen and methanol, as well as different lambdas, on ID in the high-pressure regime are considered. It is shown how ID of the pilot fuel is strongly affected by the presence of premixed fuel.
E$_{6(6)}$ Exceptional Drinfel'd Algebras
Creators: name: Malek, Emanuel
name: Sakatani, Yuho
name: Thompson, Daniel C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The exceptional Drinfel'd algebra (EDA) is a Leibniz algebra introduced to provide an algebraic underpinning with which to explore generalised notions of U-duality in M-theory. In essence it provides an M-theoretic analogue of the way a Drinfel'd double encodes generalised T-dualities of strings. In this note we detail the construction of the EDA in the case where the regular U-duality group is $E_{6(6)}$. We show how the EDA can be realised geometrically as a generalised Leibniz parallelisation of the exceptional generalised tangent bundle for a six-dimensional group manifold $G$, endowed with a Nambu-Lie structure. When the EDA is of coboundary type, we show how a natural generalisation of the classical Yang-Baxter equation arises. The construction is illustrated with a selection of examples including some which embed Drinfel'd doubles and others that are not of this type.
description: 27 pages
Detection of atomic entanglement and electromagnetically induced transparency in velocity-selective coherent population trapping
Creators: name: Kiffner, M.
name: Marzlin, K. -P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate theoretically the optical properties of an atomic gas which has been cooled by the laser cooling method velocity-selective coherent population trapping. We demonstrate that the application of a weak laser pulse gives rise to a backscattered pulse, which is a direct signal for the entanglement in the atomic system, and which leads to single-particle entanglement on the few-photon level. If the pulse is applied together with the pump lasers, it also displays the phenomenon of electromagnetically induced transparency. We suggest that the effect should be observable in a gas of Rubidium atoms.
description: Revtex, 9 pages, 6 figures. To appear in Physical Review A
Additional file 2 of Cytosine methylations in the promoter regions of genes involved in the cellular oxidation equilibrium pathways affect rice heat tolerance
Creators: name: He, Chao
name: Zhang, Hong-Yu
name: Zhang, Yong-Xin
name: Fu, Pei
name: You, Li-Li
name: Xiao, Wen-Bo
name: Wang, Zhao-Hai
name: Song, Hai-Yan
name: Ying-Jin Huang
name: Liao, Jiang-Lin
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2: Figure S4. is the original full length gel image for Labelle, and Figure S5 for Koshihikari, Figure S6 for OM997, Figure S7 for Huazhan, Figure S8 for Qiyinzhan, Figure S9 for Simiao in Fig. 6c. The DNA Maker is 250 bp marker, and the bands from top to bottom are 500 bp, 400 bp, 300 bp, 250 bp, 200 bp, 150 bp, 100 bp and 50 bp. The size of amplified gene Actin1 and PPR were 155 bp and 188 bp, respectively.
title: Extended Affinity Propagation Clustering for Multi-source Entity Resolution
Creators: name: Lerm, Stefan
name: Saeedi, Alieh
name: Rahm, Erhard
Publisher: name: Gesellschaft für Informatik, Bonn
Year: 2021
Subjects: subject: Entity Resolution
subject: Clustering
subject: Affinity Propagation
subject: MSCD-AP

description: Entity resolution is the data integration task of identifying matching entities (e.g. products, customers) in one or several data sources. Previous approaches for matching and clustering entities between multiple (>2) sources either treated the different sources as a single source or assumed that the individual sources are duplicate-free, so that only matches between sources have to be found. In this work we propose and evaluate a general Multi-Source Clean Dirty (MSCD) scheme with an arbitrary combination of clean (duplicate-free) and dirty sources. For this purpose, we extend a constraint-based clustering algorithm called Affinity Propagation (AP) for entity clustering with clean and dirty sources (MSCD-AP). We also consider a hierarchical version of it for improved scalability. Our evaluation considers a full range of datasets containing 0% to 100% of clean sources. We compare our proposed algorithms with other clustering schemes in terms of both match quality and runtime.
Additional file 3 of Targeted gene therapy of nasopharyngeal cancer in vitro and in vivo by enhanced thymidine kinase expression driven by human TERT promoter and CMV enhancer
Creators: name: Cong-Xiang Shen
name: Wen, Zhong
name: Qian, Yu-Hong
name: Mu, Shao-Feng
name: Guan, Xiao-Fang
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Neuroscience
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Marine Biology
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology
subject: FOS: Biological sciences
subject: Computational Biology

description: Authors’ original file for figure 3
Tighter constraints of multiqubit entanglement in terms of Rényi-$α$ entropy
Creators: name: Guo, Meng-Li
name: Bo-Li
name: Wang, Zhi-Xi
name: Fei, Shao-Ming
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum entanglement plays essential roles in quantum information processing. The monogamy and polygamy relations characterize the entanglement distributions in the multipartite systems. We present a class of monogamy inequalities related to the $μ$th power of the entanglement measure based on Rényi-$α$ entropy, as well as polygamy relations in terms of the $μ$th powered of Rényi-$α$ entanglement of assistance. These monogamy and polygamy relations are shown to be tighter than the existing ones.
description: 10 pages, 2 figures
An Analysis of the Relationships among Specific Quality Characteristics for Hard Red Spring and Durum Wheat
Creators: name: Mittleider, John F.
name: Anderson, Donald E.
name: Mittleider, John F.
name: Anderson, Donald E.
Publisher: name: Unknown
Year: 1977
Subjects: subject: Marketing
subject: FOS: Economics and business

description: The purpose of this study is to provide information dealing with the specific relationships among various quality characteristics for hard red spring and durum wheat. Grain handlers and users may use these data when actual tests of specific quality relationships are not readily available.
123. Using ADS citations in a Latex file
Creators: name: Perryman, Michael
Publisher: name: Zenodo
Year: 2023

description: I am deviating from my usual topic of scientific results from Gaia, and offer some suggestions about one aspect of using the ADS (Astrophysics Data System) bibliography in Latex documents. Whether to use, for citations, the 19-character code created by ADS, or your own ad hoc code. If you struggle with the management of citations, do read!
Simultaneous Ultraviolet and X-ray Observations of the Seyfert Galaxy NGC 4151. I. Physical Conditions in the X-ray Absorbers
Creators: name: Kraemer, S. B.
name: George, I. M.
name: Crenshaw, D. M.
name: Gabel, J. R.
name: Turner, T. J.
name: Gull, T. R.
name: Hutchings, J. B.
name: Kriss, G. A.
name: Mushotzky, R. F.
name: Netzer, H.
name: Peterson, B. M.
name: Behar, Ehud
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a detailed analysis of the intrinsic X-ray absorption in the Seyfert 1 galaxy NGC 4151 using Chandra/HETGS data obtained 2002 May, as part of a program which included simultaneous UV spectra using HST/STIS and FUSE. NGC 4151 was in a relatively low flux state during the observations reported here, although roughly 2.5 times as bright in the 2 --10 keV band as during a Chandra observation in 2000. The soft X-ray band was dominated by emission lines, which show no discernible variation in flux between the two observations. The 2002 data show the presence of a very highly ionized absorber, in the form of H-like and He-like Mg, Si, and S lines, as well as lower ionization gas via the presence of inner-shell absorption lines from lower-ionization species of these elements. The former is too highly ionized to be radiatively accelerated in a sub-Eddington source such as NGC 4151. We find that the lower ionization gas had a column density a factor of ~ 3 higher during the 2000 observation. If due to bulk motion, we estimate that this component must have a velocity of more than 1250 km/sec transverse to our line-of-sight. We suggest that these results are consistent with a magneto-hydrodynamic flow.
description: 42 pages, 14 figures. Accepted for publication in The Astrophysical Journal
SPORT HISTORISCH (Kanusport): 6. internationale Kanuregatta (WW-Abfahrt) und 1. internationaler Kanuslalom auf der Saalach in St.Martin/Lofer (Österreich) am 8. und 9. August 1970
Creators: name: ZEILNER FRANZ
Publisher: name: Zenodo
Year: 2022
Subjects: Kanusport, Wildwassersport, Kanu, Slalom, WW-Abfahrt, Saalach, Lofer, St. Martin, Wettkampfsport, Freizeitsport, Schulsport, fächerübergreifender Unterricht

description: Auf der Saalach - im heutigen Wildwasserzentrum Lofer (St.Martin/Lofer) - wurde 1970 neben der internationalen WW-Abfahrt erstmals auch ein internationaler Kanuslalom ausgetragen und deshalb auch Sportgeschichte bzw. Geschichte des Kanusports geschrieben. Bei dieser internationalen Sportveranstaltung waren insgesamt mehr als 150 Wettkämpfer/ innen aus verschiedenen Nationen und Vereinen am Start. Im Rahmen der Organisation und der Durchführung waren mehr als einhundert Personen im Einsatz. Die Organisatoren, das waren der ÖPV und der Kanuclub Braunau/Inn, und die Wettkämpfer waren mit einem rasch ansteigenden Wasserstand konfrontiert. Es wurde letztendlich deshalb entschieden den Streckenabschnitt St. Martinschlucht mit dem sogenannten „Korkenzieher“ nicht zu fahren. Der hohe Wasserstand veranlasste einige Kanuten auch auf den Start zu verzichten. Es blieb aber ein hochkarätiges Starterfeld sowohl beim Kanuslalom als auch bei der WW-Abfahrt (Regatta) über. Ein hoher Sicherheitsmassstab wurde damals von den Vertretern des ÖPV und des BKV angewendet und zeigte von einer guten Kooperation zwischen diesen beiden Verbänden. Während des Kanuslaloms betrug die Durchflussmenge 60 m3 pro Sekunde, während der WW-Abfahrt waren es 200 m3 pro Sekunde. Dieses Paper beinhaltet auch Basics zur Befahrung der Saalach und für den Wildwassersport allgemein.
title: Optimized Theta-Join Processing
Creators: name: Weise, Julian
name: Schmidl, Sebastian
name: Papenbrock, Thorsten
Publisher: name: Gesellschaft für Informatik, Bonn
Year: 2021
Subjects: subject: theta-join
subject: query optimization
subject: distributed computing
subject: actor programming

description: The Theta-Join is a powerful operation to connect tuples of different relational tables based on arbitrary conditions. The operation is a fundamental requirement for many data-driven use cases, such as data cleaning, consistency checking, and hypothesis testing. However, processing theta-joins without equality predicates is an expensive operation, because basically all database management systems (DBMSs) translate theta-joins into a Cartesian product with a post-filter for non-matching tuple pairs. This seems to be necessary, because most join optimization techniques, such as indexing, hashing, bloom-filters, or sorting, do not work for theta-joins with combinations of inequality predicates based on . In this paper, we therefore study and evaluate optimization approaches for the efficient execution of theta-joins. More specifically, we propose a theta-join algorithm that exploits the high selectivity of theta-joins to prune most join candidates early; the algorithm also parallelizes and distributes the processing (over CPU cores and compute nodes, respectively) for scalable query processing. The algorithm is baked into our distributed in-memory database system prototype A2DB. Our evaluation on various real-world and synthetic datasets shows that A2DB significantly outperforms existing single-machine DBMSs including PostgreSQL and distributed data processing systems, such as Apache SparkSQL, in processing highly selective theta-join queries.
The Vlasov-Maxwell-Boltzmann System in The Whole Space
Creators: name: Strain, Robert M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: Primary: 76P05; Secondary: 82B40, 82C40, 82D05

description: The Vlasov-Maxwell-Boltzmann system is a fundamental model to describe the dynamics of dilute charged particles, where particles interact via collisions and through their self-consistent electromagnetic field. We prove the existence of global in time classical solutions to the Cauchy problem near Maxwellians.
description: 23 pages
title: Using FALCES against bias in automated decisions by integrating fairness in dynamic model ensembles
Creators: name: Lässig, Nico
name: Oppold, Sarah
name: Herschel, Melanie
Publisher: name: Gesellschaft für Informatik, Bonn
Year: 2021
Subjects: subject: Model fairness
subject: bias in machine learning
subject: model ensembles

description: As regularly reported in the media, automated classifications and decisions based on machine learning models can cause unfair treatment of certain groups of a general population. Classically, the machine learning models are designed to make highly accurate decisions in general. When one machine learning model is not sufficient to define the possibly complex boundary between classes, multiple specialized" models are used within a model ensemble to further boost accuracy. In particular
Sexual violence among a cohort of injection drug users
Creators: name: Braitstein, Paula
Publisher: name: University of British Columbia
Year: 2009

description: Objectives: To determine the prevalence of and factors associated with sexual violence in childhood, adolescence and adulthood, among injection drug users (IDU). To determine how much of the HIV epidemic among this population is attributable to a history of sexual violence. Methods: The Vancouver Injection Drug User Study is a prospective cohort of I DU begun in 1996. The analysis included all individuals who completed the baseline questionnaire who responded to the question about sexual assault. Multivariate modeling was used to determine to what extent a history of sexual violence, and at different ages, is predictive of later self-destructive behaviors and health care utilization. Attributable risks were calculated using HIV incidence and prevalence estimates entered into standard attributable risk calculations. Results: There were 1437 eligible individuals, of whom 518 (36%) reported a history of sexual violence. This included 306 (21%) individuals who were at or below age 12 when the first incident occurred. Women were more likely to report a history of sexual violence (AOR: 9.0, 95% CI: 7.0 - 11.5). After controlling for sociodemographic factors, any history of sexual violence was predictive of ever being in the sex trade (AOR: 3.7, 95% CI: 2.8-4.9), having knowingly borrowed rigs from HIV+ people (AOR: 1.7, 95% CI: 1.3 - 2.3), having ever attempted suicide (AOR: 1.7, 95% CI: 1.2 - 2.3), and ever being diagnosed with a mental disorder/disability (AOR: 2.0, 95% CI: 1.6 - 2.6). A clear gradient of effect was associated depending on the age at onset of abuse, with those experiencing child sexual abuse having the worst outcomes. Childhood sexual abuse (but not other ages) was predictive of using the emergency department in the past six months (AOR 1.8, 95% CI: 1.3 - 2.4), and ever being hospitalized for mental illness (AOR 1.5, 95%o CI: 1.1-1.9). Approximately 25% of the HIV prevalence among individuals who have experienced sexual violence can be attributed to their history of sexual violence, and approximately 10% of the HIV prevalence in all of VIDUS can be attributed to sexual violence. Conclusions: These data suggest that 36% of the cohort has ever experienced sexual violence, and 21% was first experienced in childhood. This history is strongly associated with a plethora of H IV risk and self-destructive behaviors, and can be causally associated in the case of child sexual abuse. Approximately 10% of the HIV prevalence among this cohort can be attributed to a history of sexual violence.
Additional file 1 of Cytosine methylations in the promoter regions of genes involved in the cellular oxidation equilibrium pathways affect rice heat tolerance
Creators: name: He, Chao
name: Zhang, Hong-Yu
name: Zhang, Yong-Xin
name: Fu, Pei
name: You, Li-Li
name: Xiao, Wen-Bo
name: Wang, Zhao-Hai
name: Song, Hai-Yan
name: Ying-Jin Huang
name: Liao, Jiang-Lin
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Table S1. Summary of the whole-genome bisulfite sequencing data. Table S2. Number of genome-wide covered cytosines and methylated cytosines. Table S3. Gene function and the methylation patterns of the DMCs in the gene DMRs. Table S4. Primers used for bisulfite-sequencing PCR. Figure S1. Positions of the cytosines and differentially methylated regions in the target genes. Figure S2. Methylation or demethylation ratio of cytosines for six selected target DMRs. Figure S3. The activity levels of SOD (a), POD (b), and CAT (c), as well as endogenous ABA concentrations (d) in the heat-tolerant rice germplasms (Huazhan, Qiyinzhan, and Simiao) and the heat-sensitive rice germplasms (Labelle, Koshihikari, and OM997).
Multiple Time Scales in Diffraction Measurements of Diffusive Surface Relaxation
Creators: name: Fleet, Aaron
name: Dale, Darren
name: Woll, A. R.
name: Suzuki, Y.
name: Brock, J. D.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We grew SrTiO3 on SrTiO3 (001) by pulsed laser deposition, using x-ray scattering to monitor the growth in real time. The time-resolved small angle scattering exhibits a well-defined length scale associated with the spacing between unit cell high surface features. This length scale imposes a discrete spectrum of Fourier components and rate constants upon the diffusion equation solution, evident in multiple exponential relaxation of the "anti-Bragg" diffracted intensity. An Arrhenius analysis of measured rate constants confirms that they originate from a single activation energy.
description: 4 pages, 3 figures
title: Applying Machine Learning Models to Scalable DataFrames with Grizzly
Creators: name: Kläbe, Steffen
name: Hagedorn, Stefan
Publisher: name: Gesellschaft für Informatik, Bonn
Year: 2021

description: The popular Python Pandas framework provides an easy-to-use DataFrame API that enables a broad range of users to analyze their data. However, Pandas faces severe scalability issues in terms of runtime and memory consumption, limiting the usability of the framework. In this paper we present Grizzly, a replacement for Python Pandas. Instead of bringing data to the operators like Pandas, Grizzly ships program complexity to database systems by transpiling the DataFrame API to SQL code. Additionally, Grizzly offers user-friendly support for combining different data sources, user-defined functions, and applying Machine Learning models directly inside the database system. Our evaluation shows that Grizzly significantly outperforms Pandas as well as state-of-the-art frameworks for distributed Python processing in several use cases.
Mining Implicit Relevance Feedback from User Behavior for Web Question Answering
Creators: name: Shou, Linjun
name: Bo, Shining
name: Cheng, Feixiang
name: Gong, Ming
name: Pei, Jian
name: Jiang, Daxin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Information Retrieval (cs.IR)
subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Training and refreshing a web-scale Question Answering (QA) system for a multi-lingual commercial search engine often requires a huge amount of training examples. One principled idea is to mine implicit relevance feedback from user behavior recorded in search engine logs. All previous works on mining implicit relevance feedback target at relevance of web documents rather than passages. Due to several unique characteristics of QA tasks, the existing user behavior models for web documents cannot be applied to infer passage relevance. In this paper, we make the first study to explore the correlation between user behavior and passage relevance, and propose a novel approach for mining training data for Web QA. We conduct extensive experiments on four test datasets and the results show our approach significantly improves the accuracy of passage ranking without extra human labeled data. In practice, this work has proved effective to substantially reduce the human labeling cost for the QA service in a global commercial search engine, especially for languages with low resources. Our techniques have been deployed in multi-language services.
description: Accepted by KDD 2020
Guidelines for Economic Evaluation of Public Sector Water Resource Projects
Creators: name: Anderson, Randall S.
name: Leitch, Jay A.
name: Fegert, Clifford R.
name: Anderson, Randall S.
name: Leitch, Jay A.
name: Fegert, Clifford R.
Publisher: name: Unknown
Year: 1985
Subjects: Resource /Energy Economics and Policy

description: Water development plays an important role in the economy of states and regions. However, procedures for estimating the expected net worth of proposed projects have never been simple, and results have rarely been without controversy. This report presents some guidelines for the application of economic evaluation procedures in project analysis of public sector water development in North Dakota. A brief history of North Dakota water development and two case studies of North Dakota water projects are included in this report.
Isospin Breaking in $K\to3π$ Decays III: Bremsstrahlung and Fit to Experiment
Creators: name: Bijnens, Johan
name: Borg, Fredrik
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We complete here our work on isospin violation in the $K\to3π$ system. We first calculate $K\to2π$ to the same order as we did $K\to3π$ in papers I and II of this series. This adds effects of order $G_{27} p^2 (m_u-m_d)$ and $G_{27} p^2 e^2$ to earlier work. We calculate also the lowest order Bremsstrahlung contributions, $K\to2πγ,3πγ$. With these and our earlier results we perform a full fit to all available CP conserving data in the $K\to2π,3π$ system including isospin violation effects. We perform these fits under various input assumptions as well as test the factorization and the vector dominance model for the weak NLO low energy constants.
description: 11 pages
title: Multi-Party Privacy Preserving Record Linkage in Dynamic Metric Space
Creators: name: Sehili, Ziad
name: Rohde, Florens
name: Franke, Martin
name: Rahm, Erhard
Publisher: name: Gesellschaft für Informatik, Bonn
Year: 2021
Subjects: subject: Privacy Preserving Record Linkage
subject: Bloom filter
subject: metric space
subject: triangle inequality
subject: Clustering

description: We propose and evaluate several approaches for multi-party privacy-preserving record linkage (MP-PPRL) for multiple data sources. To reduce the number of comparisons for scalability we propose a new pivot-based metric space approach that dynamically adapts the selection of pivots for additional sources and growing data volume. We investigate so-called early and late clustering schemes that either cluster matching records per additional source or holistically for all sources. A comprehensive evaluation for different datasets confirms the high effectiveness and efficiency of the proposed methods.
2000 OUTLOOK OF THE U.S. AND WORLD WHEAT INDUSTRIES, 1999-2001
Creators: name: Koo, Won W.
name: Taylor, Richard D.
name: Koo, Won W.
name: Taylor, Richard D.
Publisher: name: Unknown
Year: 2000
Subjects: subject: Marketing
subject: FOS: Economics and business
subject: Production Economics
subject: International Relations/Trade
subject: Common Wheat
subject: Durum Wheat
subject: Production
subject: Exports

description: This report evaluates the U.S. and world wheat markets for the 1999-2009 period by using the Global Wheat Policy Simulation Model. This analysis is based on a series of assumptions about general economic conditions, agricultural policies, weather conditions, and technological change. Both the U.S. and world wheat economies are predicted to be improving for the next ten years. World demands for both common and durum wheat are expected to grow faster than world production of the two wheat classes, resulting in gradual increases in prices of the wheats, which are predicted to increase 36% for durum wheat and 23% for common wheat for the 1999-2009 period. However, the prices are expected to recover slowly for the next 2-3 years. World trade volumes of both classes of wheat are expected to expand, but trade volume of durum wheat may grow faster than common wheat.
title: Combining Programming-by-Example with Transformation Discovery from large Databases
Creators: name: özmen, Aslihan
name: Esmailoghli, Mahdi
name: Abedjan, Ziawasch
Publisher: name: Gesellschaft für Informatik, Bonn
Year: 2021

description: Data transformation discovery is one of the most tedious tasks in data preparation. In particular, the generation of transformation programs for semantic transformations is tricky because additional sources for look-up operations are necessary. Current systems for semantic transformation discovery face two major problems: either they follow a program synthesis approach that only scales to a small set of input tables, or they rely on extraction of transformation functions from large corpora, which requires the identification of exact transformations in those resources and is prone to noisy data. In this paper, we try to combine approaches to benefit from large corpora and the sophistication of program synthesis. To do so, we devise a retrieval and pruning strategy ensemble that extracts the most relevant tables for a given transformation task. The extracted resources can then be processed by a program synthesis engine to generate more accurate transformation results than state-of-the-art.
Contribution to the modeling of a liquid film flowing down inside a vertical circular tube
Creators: name: Ndoumbe, Samuel
name: Lusseyran, François
name: Izrar, Boujema
Publisher: name: arXiv
Year: 2005
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: This note focuses on the development of a 2D model of a thin liquid film flowing down inside a vertical pipe. This model is based on the large wavelength assumption and valid for high Reynolds and Weber numbers.
description: 5 pages, french
Nonequilibrium Kondo transport through a quantum dot in a magnetic field
Creators: name: Smirnov, Sergey
name: Grifoni, Milena
Publisher: name: Universität Regensburg
Year: 2013
Subjects: subject: Kondo effect; quantum dots; magnetic field; nonequilibrium; Keldysh field integral theory
subject: 530 Physik
subject: 75.30.Mb
subject: 71.10.Ay
subject: 71.70.Ej

description: We analyze universal transport properties of a strongly interacting quantum dot in the Kondo regime when the quantum dot is placed in an external magnetic field. The quantum dot is described by the asymmetric Anderson model with the spin degeneracy removed by the magnetic field resulting in the Zeeman splitting. Using an analytical expression for the tunneling density of states found from a Keldysh effective field theory, we obtain in the whole energy range the universal differential conductance and analytically demonstrate its Fermi-liquid and logarithmic behavior at low- and high-energies, respectively, as a function of the magnetic field. We also show results on the zero temperature differential conductance as a function of the bias voltage at different magnetic fields as well as results on finite temperature effects out of equilibrium and at a finite magnetic field. The modern nonequilibrium experimental issues of the critical magnetic field, at which the zero bias maximum of the differential conductance starts to split into two maxima, as well as the distance between these maxima as a function of the magnetic field are also addressed.