cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Multi-sensor Spatial Association using Joint Range-Doppler Features
Creators: name: Gupta, Anant
name: Sezer, Ahmet Dundar
name: Madhow, Upamanyu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We investigate the problem of localizing multiple targets using a single set of measurements from a network of radar sensors. Such "single snapshot imaging" provides timely situational awareness, but can utilize neither platform motion, as in synthetic aperture radar, nor track targets across time, as in Kalman filtering and its variants. Associating measurements with targets becomes a fundamental bottleneck in this setting. In this paper, we present a computationally efficient method to extract 2D position and velocity of multiple targets using a linear array of FMCW radar sensors by identifying and exploiting inherent geometric features to drastically reduce the complexity of spatial association. The proposed framework is robust to detection anomalies, and achieves order of magnitude lower complexity compared to conventional methods. While our approach is compatible with conventional FFT-based range-Doppler processing, we show that more sophisticated techniques for range-Doppler estimation lead to reduced data association complexity as well as higher accuracy estimates of target positions and velocities.
description: 13 pages, 12 figures, IEEE Transactions on Signal Processing
Black Holes, Qubits and Octonions
Creators: name: Borsten, L.
name: Dahanayake, D.
name: Duff, M. J.
name: Ebrahim, H.
name: Rubens, W.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We review the recently established relationships between black hole entropy in string theory and the quantum entanglement of qubits and qutrits in quantum information theory. The first example is provided by the measure of the tripartite entanglement of three qubits, known as the 3-tangle, and the entropy of the 8-charge STU black hole of N=2 supergravity, both of which are given by the [SL(2)]^3 invariant hyperdeterminant, a quantity first introduced by Cayley in 1845. There are further relationships between the attractor mechanism and local distillation protocols. At the microscopic level, the black holes are described by intersecting D3-branes whose wrapping around the six compact dimensions T^6 provides the string-theoretic interpretation of the charges and we associate the three-qubit basis vectors, |ABC> (A,B,C=0 or 1), with the corresponding 8 wrapping cycles. The black hole/qubit correspondence extends to the 56 charge N=8 black holes and the tripartite entanglement of seven qubits where the measure is provided by Cartan's E_7 supset [SL(2)]^7 invariant. The qubits are naturally described by the seven vertices ABCDEFG of the Fano plane, which provides the multiplication table of the seven imaginary octonions, reflecting the fact that E_7 has a natural structure of an O-graded algebra. This in turn provides a novel imaginary octonionic interpretation of the 56=7 x 8 charges of N=8: the 24=3 x 8 NS-NS charges correspond to the three imaginary quaternions and the 32=4 x 8 R-R to the four complementary imaginary octonions. N=8 black holes (or black strings) in five dimensions are also related to the bipartite entanglement of three qutrits (3-state systems), where the analogous measure is Cartan's E_6 supset [SL(3)]^3 invariant.
description: Version to appear in Physics Reports, including previously omitted new results on small STU black hole charge orbits and expanded bibliography. 145 pages, 15 figures, 41 tables
USDA Conservation Technical Assistance and Within-Field Resource Concerns
Creators: name: Rosenberg, Andrew B
name: Wallander, Steven
name: Rosenberg, Andrew B
name: Wallander, Steven
Publisher: name: Unknown
Year: 2022
Subjects: subject: Resource /Energy Economics and Policy
subject: Land Economics/Use
subject: Resource concerns
subject: technical assistance
subject: working lands conservation programs
subject: soil health

description: The U.S. Department of Agriculture’s (USDA) Natural Resources Conservation Service (NRCS) provides conservation planning and field-level assessments of conservation strategies, and serves as one of multiple sources from which agricultural producers can receive conservation technical assistance. This bulletin looks at how many fields in oats, cotton, wheat, and soybeans have farmer-reported, on-field resource concerns and whether farmers received technical assistance to address these concerns from USDA or other sources. Farmers report that 49 percent of these fields have at least one resource concern and 26 percent have multiple resource concerns. Of the fields represented with at least one resource concern, 24 percent received technical assistance. Sixty-seven percent of assisted fields received assistance from USDA, NRCS.
Barrier billiard and random matrices
Creators: name: Bogomolny, Eugene
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: 81Q50, 81Q20, 62P35

description: The barrier billiard is the simplest example of pseudo-integrable models with interesting and intricate classical and quantum properties. Using the Wiener-Hopf method it is demonstrated that quantum mechanics of a rectangular billiard with a barrier in the centre can be reduced to the investigation of a certain unitary matrix. Under heuristic assumptions this matrix is substituted by a special low-complexity random unitary matrix of independent interest. The main results of the paper are (i) spectral statistics of such billiards is insensitive to the barrier height and (ii) it is well described by the semi-Poisson distributions.
description: 24 pages, 5 figures
Ultrafast excitation and topological soliton formation in incommensurate charge density wave states
Creators: name: Zhang, Xiao-Xiao
name: Manske, Dirk
name: Nagaosa, Naoto
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Topological soliton is a nonperturbative excitation in commensurate density wave states and connects degenerate ground states. In incommensurate density wave states, ground states are continuously degenerate and topological soliton is reckoned to be smoothly connected to the perturbative phason excitation. We study the ultrafast nonequilibrium dynamics due to photoexcited electron-hole pair in a one-dimensional chain with an incommensurate charge density wave ground state. Time-resolved evolution reveals both perturbative excitation of collective modes and nonperturbative topological phase transition due to creating novel topological solitons, where the continuous complex order parameter with amplitude and phase is essential. We identify the nontrivial phase-winding solitons in the complex plane unique to this nonequilibrium state and capture it by a low-energy effective model. The perturbative temporal gap oscillation and the solitonic in-gap states enter the optical conductivity absorption edge and the spectral density related to spectroscopic measurement, providing concrete connections to real experiments.
description: 11 pages, 5 figues
Spin Chains in N=6 Superconformal Chern-Simons-Matter Theory
Creators: name: Gaiotto, Davide
name: Giombi, Simone
name: Yin, Xi
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this note we study spin chain operators in the N=6 Chern-Simons-matter theory recently proposed by Aharony, Bergman, Jafferis and Maldacena to be dual to type IIA string theory in AdS4xCP3. We study the two-loop dilatation operator in the gauge theory, and compare to the Penrose limit on the string theory side.
description: 19 pages, 15 figures; minor corrections, references added
Fußball und Identität in Israel
Creators: name: Schuster, Michael
Publisher: name: Medienimpulse
Year: 2010

description: Eine gängige These besagt, dass sich im Sport gesellschaftliche Konflikte widerspiegeln. Insbesondere dem Fußball wird unterstellt, eine Arena zur Artikulation und Repräsentation exklusiver Identität nationaler Minderheiten zu bieten. Der vorliegende Artikel widmet sich dem Thema der politisch-kulturellen Identitätsbildung in fragmentierten Gesellschaften. Am Beispiel der arabischen Minderheit in Israel wird dargestellt, dass unter bestimmten gesellschaftlichen Konstellationen der Fußball als Element der Popularkultur dem Staat auch als Mittel der Unterdrückung eines nationalen Minderheitenbewusstseins dienen kann. Unter Zuhilfenahme der Hegemonietheorie Antonio Gramscis kann das Entstehen einer pro-israelischen Identität der arabischen Minderheit - in Abgrenzung zu einer eigenen, arabischen oder widerständigen Identität - im Kontext des Fußballs rekonstruiert werden. Zu diesem Zweck wird aufgezeigt, welche Bedeutungs- und Definitionsmacht hebräische und arabische Sportmedien als Akteure divergierender Bedeutungszuschreibungen in dem Konfliktfeld der Herausbildung politisch-kultureller Identitäten besitzen und ihrerseits vorherrschende Integrations- und Dominanzprozesse beeinflussen.
description: Medienimpulse, Bd. 48 Nr. 1 (2010): 1/2010 - Medien und Sport
Neutron spectroscopic factors of Ni isotopes from transfer reactions
Creators: name: Lee, Jenny
name: Tsang, M. B.
name: Lynch, W. G.
name: Horoi, M.
name: Su, S. C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: 177 neutron spectroscopic factors for nickel isotopes have been extracted by performing a systematic analysis of the angular distributions measured from (d,p) transfer reactions. A subset of the extracted spectroscopic factors are compared to predictions of large-basis shell models in the full pf model space using the GXPF1A effective interaction, and the (f5/2, p3/2, p1/2, g9/2) model space using the JJ4PNA interaction. For ground states, the predicted spectroscopic factors using the GXPF1A effective interaction in the full pf model space agree very well with the experimental values, while predictions based on several other effective interactions and model spaces are about 30% higher than the experimental values. For low-energy excited states (<3.5 MeV), the agreement between the extracted spectroscopic factors and shell model calculations is not better than a factor of two.
description: 18 pages, 4 figures, 2 tables. accepted for publication in PRC
Images und mediale Diskurse über afrikanischen Fußball: Paternalismus, Rassismus und neoliberale Bewunderung
Creators: name: Wachter, Kurt
Publisher: name: Medienimpulse
Year: 2010

description: Medienimpulse, Bd. 48 Nr. 1 (2010): 1/2010 - Medien und Sport
Decomposition of the mean friction drag on a NACA4412 airfoil under uniform blowing/suction
Creators: name: Fan, Yitong
name: Atzori, Marco
name: Vinuesa, Ricardo
name: Gatti, Davide
name: Schlatter, Philipp
name: Li, Weipeng
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The application of drag-control strategies on canonical wall-bounded turbulence, such as periodic channel and zero- or adverse-pressure-gradient boundary layers, raises the question of how to describe control effects consistently for different reference cases. We employ the RD identity (Renard & Deck, J. Fluid Mech., 790, 2016, pp. 339-367) to decompose the mean friction drag and investigate the control effects of uniform blowing and suction applied to a NACA4412 airfoil at chord Reynolds numbers Re_c=200,000 and 400,000. The connection of the drag reduction/increase by using blowing/suction with the turbulence statistics (including viscous dissipation, turbulence-kinetic-energy production, and spatial growth of the flow) across the boundary layer, subjected to adverse or favorable pressure gradients, are examined. We found that the peaks of the statistics associated with the friction-drag generation exhibit good scaling in either inner or outer units throughout the boundary layer. They are also independent of the Reynolds number, control scheme, and intensity of the blowing/suction. The small- and large-scale structures are separated with an adaptive scale-decomposition method, i.e. empirical mode decomposition (EMD), aiming to analyze the scale-specific contribution of turbulent motions to friction-drag generation. Results unveil that blowing on the suction side of the airfoil is able to enhance the contribution of large-scale motions and to suppress that of small-scales; on the other hand, suction behaves contrarily. The contributions related to cross-scale interactions remain almost unchanged with different control strategies.
A periodic orbit basis for the Quantum Baker Map
Creators: name: Ermann, Leormardo
name: Saraceno, Marcos
Publisher: name: arXiv
Year: 2008
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A set of quantum states, dynamically related to the classical periodic orbits of a chaotic map, is used as a basis in which the description of the eigenstates of its quantum version is greatly simplified. This set can be improved with the inclusion of short time propagation along the stable and unstable manifolds of the periodic orbits resulting in a construction similar to the scar functions of Vergini (Jour. Phys. A \textbf{33}, (2000) 4709). The average participation ratio is used to quantify the quality of the basis.
description: 8 pages, 9 figures. v2 has minor changes
Partial 3D Object Retrieval using Local Binary QUICCI Descriptors and Dissimilarity Tree Indexing
Creators: name: van Blokland, Bart Iver
name: Theoharis, Theoharis
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: A complete pipeline is presented for accurate and efficient partial 3D object retrieval based on Quick Intersection Count Change Image (QUICCI) binary local descriptors and a novel indexing tree. It is shown how a modification to the QUICCI query descriptor makes it ideal for partial retrieval. An indexing structure called Dissimilarity Tree is proposed which can significantly accelerate searching the large space of local descriptors; this is applicable to QUICCI and other binary descriptors. The index exploits the distribution of bits within descriptors for efficient retrieval. The retrieval pipeline is tested on the artificial part of SHREC'16 dataset with near-ideal retrieval results.
description: 19 pages, 17 figures, to be published in Computers & Graphics
Numerical experiments with least-squares catch-at-age analysis
Creators: name: Lawson, Timothy Adair
Publisher: name: University of British Columbia
Year: 2010

description: Three methods of analyzing age composition from the catches of exploited populations are compared on the basis of their assumptions about recruitment, harvesting, and natural mortality; the manner in which data errors are treated; and how information contained in the catch data is utilized in estimating population parameters. The analysis of catch curves involves the strictest assumptions and uses the least amount of information in the data. Cohort analysis, while having the most relaxed assumptions, ignores the errors and restricts information to within cohorts. The least-squares approach of Doubleday (1S76) takes full account of data errors and information between cohorts, but assumes that the age selection characteristics of a fishery are constant over time. The least-squares technique is modified to account for changes in the relative variance of data errors with age and to prevent unreasonable estimates of population parameters. In its most general form, the method is capable of analyzing catches-at-age, estimates of catch-at-age error variances, effort data, reproduction statistics, and prior information about parameter values, all simultaneously and in a way that guarantees consistent results. The method is applied to northwestern Atlantic harp seal catch-at-age data. The results indicate that the seal population is more abundant than previous analyses have shown. However, projections with a quota of 180,000 animals predict a decline in the stock to two-thirds its present abundance over the next ten years. Monte Carlo studies were performed to investigate the general relationship between reliability of population forecasts and the information content of the data, as determined by data quantity, data errors, and the contrast in abundance and exploitation rates during the period over which the data were taken. The coefficient of variation for predictions of abundance ranged from 1% for high contrast, high quantity data sets to 91% for low quantity, low contrast data. Estimates of the natural mortality rate with the least-squares technique are precise when the data set is large, contrast is high, and errors are moderate.
Punctured logarithmic maps
Creators: name: Abramovich, Dan
name: Chen, Qile
name: Gross, Mark
name: Siebert, Bernd
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14N35 (14D23)

description: We introduce a variant of stable logarithmic maps, which we call punctured logarithmic maps. They allow an extension of logarithmic Gromov-Witten theory in which marked points have a negative order of tangency with boundary divisors.
 As a main application we develop a gluing formalism which reconstructs stable logarithmic maps and their virtual cycles without expansions of the target, with tropical geometry providing the underlying combinatorics.
 Punctured Gromov-Witten invariants also play a pivotal role in the intrinsic construction of mirror partners by the last two authors in arXiv:1909.07649, conjecturally relating to symplectic cohomology, and in the logarithmic gauged linear sigma model in upcoming work of the second author with Felix Janda and Yongbin Ruan.
description: 125 pages; v2: minor changes throughout the text, added more figures and an appendix on charts for morphisms of log stacks; v3: added appendix on functorial tropicalization, changed treatment of targets with monodromy, minor corrections and more details provided at many places
Two-Loop QCD Corrections to the Heavy-to-Light Quark Decay
Creators: name: Bonciani, R.
name: Ferroglia, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present an analytic expression for the two-loop QCD corrections to the decay process b -> u W^*, where b and u are a massive and massless quark, respectively, while W^* is an off-shell charged weak boson. Since the W-boson can subsequently decay in a lepton anti-neutrino pair, the results of this paper are a first step towards a fully analytic computation of differential distributions for the semileptonic decay of a b-quark. The latter partonic process plays a crucial role in the study of inclusive semileptonic charmless decays of B-mesons. The three independent form factors characterizing the b W u vertex are provided in form of a Laurent series in (d-4), where d is the space-time dimension. The coefficients in the series are expressed in terms of Harmonic Polylogarithms of maximal weight 4, and are functions of the invariant mass of the leptonic decay products of the W-boson.
description: 27 pages, 3 figures, References added, version published on JHEP
Cover Practice Definitions and Incentives in the Conservation Reserve Program
Creators: name: Pratt, Bryan
name: Wallander, Steven
name: Pratt, Bryan
name: Wallander, Steven
Publisher: name: Unknown
Year: 2022
Subjects: subject: Land Economics/Use
subject: Carbon sequestration
subject: conservation covers
subject: conservation practices
subject: conservation program

description: This study examines data on the costs of cover practices to demonstrate how USDA Conservation Reserve Program's (CRP) use of ranking points in the Environmental Benefits Index (EBI) and cost-share payments combine to incentivize some participants to adopt higher public-benefit practices. This analysis also provides predictions for how policy alternatives might impact the program.
Infrared Photometry and Evolution of Mass-Losing AGB Stars. II. Luminosity and Colors of MS and S Stars
Creators: name: Guandalini, R.
name: Busso, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: AGB phases mark the end of the evolution for Low- and Intermediate-Mass Stars. Our understanding of the mechanisms through which they eject the envelope and our assessment of their contribution to the chemical evolution of Galaxies are hampered by poor knowledge of their Luminosities and mass loss rates,both for C-rich and for O-rich sources.We plan to establish criteria permitting a more quantitative determination of luminosities for the various types of AGB stars on the basis of IR fluxes.In this paper we concentrate on O-rich and s-element-rich MS, S stars and include a small sample of SC stars.We reanalyze the absolute bolometric magnitudes and colors of MS, S, SC stars on the basis of a sample of intrinsic and extrinsic long period variables.We derive bolometric corrections as a function of near- and mid-IR colors,adopting as references a group of stars for which the SED could be reconstructed in detail over a large wavelength range.We determine the absolute HR diagrams and compare luminosities and colors of S-type giants with those of C-rich AGB stars. Luminosity estimates are also verified on the basis of existing Period-Luminosity relations valid for O-rich Miras.S star bolometric luminosities are almost indistinguishable from those of C-rich AGB stars.Their circumstellar envelopes are thinner and less opaque.Despite this last property the IR wavelengths remain dominant, with the bluest stars having their maximum emission in the H or K bands.Based on Period-Luminosity relations for O-rich Miras and on Magnitude-color relations for the same variables we show how approximate distances for sources of so far unknown parallax can be inferred. We argue that most of the sources have a rather small mass(<2Msun);dredge-up might then be not effective enough to let the C/O ratio exceed unity.
description: 17 pages + 19 pages of "Online Material", 9 figures, 12 tables. Accepted for publication in "Astronomy & Astrophysics"
EventManager
Creators: name: Rosenstingl, Herbert
Publisher: name: Medienimpulse
Year: 2010

description: Ein Online-Lernspiel zum Umgang mit Geld Verlag: PostFinance Genre: online-Lernspiel Plattform: PC Altersempfehlung: Kids (10-13 Jahre) / Jugendliche (14+ Jahre)
description: Medienimpulse, Bd. 48 Nr. 1 (2010): 1/2010 - Medien und Sport
CHET ELDA ALOHIDA YORDAMGA MUHTOJ BOLALARNING INKLYUZIV TA'LIMI
Creators: name: Nuriddinova, Nozima
name: Norboboyeva, Dinora
Publisher: name: Zenodo
Year: 2025

description: Mazkur maqolada chet elda alohida yordamga muhtoj bolalarning inklyuziv ta'lim tizimi tahlil qilinadi. Inklyuziv ta'lim, ya'ni maxsus ehtiyojlarga ega bo‘lgan bolalar uchun ta'lim tizimida barcha bolalar uchun teng imkoniyatlar yaratish maqsadida amalga oshirilayotgan ta'lim islohotlarini o‘z ichiga oladi. Maqolada inklyuziv ta'limning rivojlanish yo‘llari, uning amaliyotdagi muvaffaqiyatlari va xususiyatlari, shuningdek, xalqaro tajribalar va ularning O‘zbekiston ta'lim tizimiga tatbiq etilishi masalalari muhokama qilinadi. Shuningdek, maqolada inklyuziv ta'lim tizimini samarali tashkil etishda muhim bo‘lgan normativ-huquqiy hujjatlar, metodik yondashuvlar va pedagogik strategiyalar haqida so‘z boradi.
Jet breaks at the end of the slow decline phase of Swift GRB lightcurves
Creators: name: De Pasquale, M.
name: Evans, P.
name: Oates, S.
name: Page, M.
name: Zane, S.
name: Schady, P.
name: Breeveld, A.
name: Holland, S.
name: Kuin, P.
name: Still, M.
name: Roming, P.
name: Ward, P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Swift mission has discovered an intriguing feature of Gamma-Ray Burst (GRBs) afterglows, a phase of shallow decline of the flux in the X-ray and optical lightcurves. This behaviour is typically attributed to energy injection into the burst ejecta. At some point this phase ends, resulting in a break in the lightcurve, which is commonly interpreted as the cessation of the energy injection. In a few cases, however, while breaks in the X-ray lightcurve are observed, optical emission continues its slow flux decline. This behaviour suggests a more complex scenario. In this paper, we present a model that invokes a double component outflow, in which narrowly collimated ejecta are responsible for the X-ray emission while a broad outflow is responsible for the optical emission. The narrow component can produce a jet break in the X-ray lightcurve at relatively early times, while the optical emission does not break due to its lower degree of collimation. In our model both components are subject to energy injection for the whole duration of the follow-up observations. We apply this model to GRBs with chromatic breaks, and we show how it might change the interpretation of the GRBs canonical lightcurve. We also study our model from a theoretical point of view, investigating the possible configurations of frequencies and the values of GRB physical parameters allowed in our model.
description: 19 pages, 3 figures. To be published by MNRAS
D2.2 Initial Results in D‐Band Ad‐Hoc Wireless Connectivity Analysis Communication Theory Beyond Shannon and Algorithm Design
Creators: name: Di Renzo, Marco
name: Aravanis, Alexis
name: Qian, Xuewen
name: Hrasnica, Halid
name: Ntontin, Konstantinos
name: Lazarakis, Fotis
name: Alexandridis, Antonis
name: Selimis, Dimitris
name: Alexiou, Angeliki
name: Boulogeorgos, Alexandros‐Apostolos A.
name: Kokkoniemi, Joonas
Publisher: name: Zenodo
Year: 2021
Subjects: Reconfigurable intelligent surfaces, D‐band

description: This deliverable summarizes initial results on developing new communication‐theoretic frameworks for modeling, analyzing, and optimizing RIS‐assisted communication systems and networks that are specifically tailored for operating in high frequency bands, i.e., above 100 GHz. RIS‐assisted systems are, in fact, inherently suitable for application to high frequency bands due to the possibility of shaping the wireless channels and of ensuring high performance in the presence of unreliable line‐of‐sight transmissions as well as compensating for the large attenuation that characterizes these frequency bands. This deliverable is, in particular, focused on fundamental aspects that encompass the development of new information‐theoretic and capacity‐achieving transmission schemes, the optimization of the transmission rate, the identification of optimized deployments, the comparison with competing technologies (e.g., relays), the evaluation of the coverage gains, and the characterization of
 the network interference.
Wir zeigen andere Bilder von Frauen ...
Creators: name: Rulofs, Bettina
Publisher: name: Medienimpulse
Year: 2010

description: Der vorliegende Beitrag beleuchtet die Bedeutung der Geschlechterordnung im Prozess der sportmedialen Kommunikation. Im Kern geht es um die Frage, inwiefern im Prozess der medialen Vermittlung von Sport traditionelle Geschlechterstereotype aufrechterhalten werden oder Möglichkeiten der Irritation solcher Stereotype bestehen. Dazu werden verschiedene Ebenen des massenmedialen Kommunikationsprozesses in den Blick genommen: die Medienprodukte, die Öffentlichkeitsarbeit und Selbst-Präsentation der Sportler/innen, die Medienrezeption und die Herstellungsprozesse von Medien in den Sportredaktionen.
description: Medienimpulse, Bd. 48 Nr. 1 (2010): 1/2010 - Medien und Sport
Approximate Cross-validated Mean Estimates for Bayesian Hierarchical Regression Models
Creators: name: Zhang, Amy X.
name: Bao, Le
name: Li, Changcheng
name: Daniels, Michael J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: Computation (stat.CO)
subject: FOS: Computer and information sciences

description: We introduce a novel procedure for obtaining cross-validated predictive estimates for Bayesian hierarchical regression models (BHRMs). Bayesian hierarchical models are popular for their ability to model complex dependence structures and provide probabilistic uncertainty estimates, but can be computationally expensive to run. Cross-validation (CV) is therefore not a common practice to evaluate the predictive performance of BHRMs. Our method circumvents the need to re-run computationally costly estimation methods for each cross-validation fold and makes CV more feasible for large BHRMs. By conditioning on the variance-covariance parameters, we shift the CV problem from probability-based sampling to a simple and familiar optimization problem. In many cases, this produces estimates which are equivalent to full CV. We provide theoretical results and demonstrate its efficacy on publicly available data and in simulations.
description: 25 pages, 2 figures
Changes in granulation scales over the solar cycle seen with SDO/HMI and Hinode/SOT
Creators: name: Ballot, J.
name: Roudier, T.
name: Malherbe, J. M.
name: Frank, Z.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The Sun is the only star where the superficial turbulent convection can be observed at very high spatial resolution. The Solar Dynamics Observatory (SDO) has continuously observed the full Sun from space with multi-wavelength filters since July 2010. In particular, the Helioseismic and Magnetic Imager (HMI) instrument takes high-cadence frames (45 seconds) of continuum intensity in which solar granulation is visible. We aimed to follow the evolution of the solar granules over an activity cycle and look for changes in their spatial properties. We investigated the density of granules and their mean area derived directly from the segmentation of deconvolved images from SDO/HMI. To perform the segmentation, we define granules as convex elements of images. We measured an approximately 2% variation in the density and the mean area of granules over the cycle, the density of granules being greater at solar maximum with a smaller granule mean area. The maximum density appears to be delayed by about one year compared to classical activity indicators, such as the sunspot number. We complemented this study with high-spatial-resolution observations obtained with Hinode/SOTBFI (Solar Optical Telescope Broadband Filter Imager), which are consistent with our results. The observed variations in solar granulation at the disc centre reveal a direct insight into the change in the physical properties that occur in the upper convective zone during a solar cycle. These variations can be due to interactions between convection and magnetic fields, either at the global scale or, locally, at the granulation scale.
description: 10 pages, 17 figures, accepted for publication in Astronomy and Astrophysics
Rezension: Ditfurth, Jutta (2013): Zeit des Zorns
Creators: name: Barberi, Alessandro
Publisher: name: Medienimpulse
Year: 2013

description: Mit >Zeit des Zorns< hat Jutta Dittfurth ihre Erfahrungen als Politikerin in der BRD zusammengefasst und zu einer umfassenden Kritik gebündelt. Von sozialen, ökonomischen und ökologischen Schäden, die der Kapitalismus hinterlässt, handelt ihre politische Philosophie. Alessandro Barberi hat rezensiert ...
description: Medienimpulse, Bd. 51 Nr. 1 (2013): 1/2013 - Normen und Normierungen
Psychopathy and semantic processing
Creators: name: Jutai, Jeffrey William
Publisher: name: University of British Columbia
Year: 2010

description: The performance of psychopathic (n=16) and nonpsychopathic (n=ll) right-handed male criminals was compared on tasks requiring the verbal semantic processing of four-letter concrete nouns presented tachistoscopically to either the left or the right visual half-field. Subjects processed stimuli at a superficial level (Simple Recognition), and at deeper levels (Lower-order and Higher-order Categorization conditions). "Yes/No" responses were made manually by triggering microswitches. Responding hand (left or right) was counterbalanced across conditions. Dependent measures were reaction time (RT) and error rate (ER), and were analysed separately as a function of group, processing level, responding hand, and visual half-field of presentation. The groups did not differ with respect to the pattern of RT results. Statistically significant group differences did emerge in the ER results however, with psychopaths making fewer errors than nonpsychopaths in the categorization conditions. These findings are discussed in the context of current neuropsychological models of verbal semantic function and psychopathy.
The Divine Ancestress in a Matrilineal Society: The Imprints of Khasi Matriliny on the Legend of Ka
Creators: name: Wattanagun, Kanya
Publisher: name: Research Administration Division
Year: 2021
Subjects: Matrilineal society
Khasi folklore
Swan maiden
Northeast India

description: Thammasat Review, 24, 2, 1-23
Bethe/Gauge Correspondence for SO/Sp Gauge Theories and Open Spin Chains
Creators: name: Kimura, Taro
name: Zhu, Rui-Dong
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: In this article, we extend the work of arXiv:0901.4744 to a Bethe/Gauge correspondence between 2d (or resp. 3d) SO/Sp gauge theories and open XXX (resp. XXZ) spin chains with diagonal boundary conditions. The case of linear quiver gauge theories is also considered.
description: 27+11 pages; minor modification made in v2
Rehabilitation of the Abandoned Land Under Luang Praditmanutham Expressway to a Neighborhood Park with a Participatory Process
Creators: name: Pattamon Selanon
Publisher: name: Research Administration Division
Year: 2021
Subjects: Rehabilitation
Abandoned land under the expressway
Participatory process
Neighborhood park

description: Thammasat Review, 24, 2, 24-40
Statistical auditing and randomness test of lotto k/N-type games
Creators: name: Coronel-Brizio, H. F.
name: Hernandez-Montoya, A. R.
name: Rapallo, Fabio
name: Scalas, Enrico
Publisher: name: arXiv
Year: 2008
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: One of the most popular lottery games worldwide is the so-called ``lotto k/N''. It considers N numbers 1,2,...,N from which k are drawn randomly, without replacement. A player selects k or more numbers and the first prize is shared amongst those players whose selected numbers match all of the k randomly drawn. Exact rules may vary in different countries. In this paper, mean values and covariances for the random variables representing the numbers drawn from this kind of game are presented, with the aim of using them to audit statistically the consistency of a given sample of historical results with theoretical values coming from a hypergeometric statistical model. The method can be adapted to test pseudorandom number generators.
description: 10 pages, no figures
title: Neue Baumaschinen-Generationen mit Einsatz modernster Kommunikationstechnik
Creators: name: Steinmetzger, Rolf
Publisher: name: Bauhaus-Universität Weimar
Year: 2002
Subjects: subject: Baubetriebslehre
subject: Baumaschine
subject: Kommunikationstechnik
subject: 620

description: Die Baumaschinentechnik hat einen hohen Stand erreicht. Auch die Automatisierungstechnik hat in breitem Maße Einzug in die moderne Fertigungstechnik gehalten und ist unbemerkt zur Selbstverständlichkeit geworden. Wesentliche Entwicklungssprünge vollziehen sich mit der zunehmenden Systembetrachtung der Bauproduktion durch vernetztes Arbeiten bei umfassender Anwendung der Telekommunikationstechnik. Die Fertigungsprozesse lassen sich dadurch besser steuern und sind transparenter nachvollzieh- und abrechenbar. Zu erwarten ist, dass sich die Entwicklungen zum Bauen mit intelligenten Baumaschinen und Geräten mit zunehmender Geschwindigkeit fortsetzt und nicht nur die Effizienz in der Bauindustrie verbessern, sondern auch das Image der Bauberufe verbessern wird. Der Verfasser gibt einen Überblick und Beispiele zu dieser Entwicklung.
description: Tag des Baubetriebs 2002 - Tagungsbeiträge: „Über den Strukturwandel zur Konjunktur“ - Innovation – Qualität – Zahlungssicherheit, p. 27
description: Schriften der Professur Baubetrieb und Bauverfahren, vol. 04
Quantitative View of the Structure of Institutional Scientific Collaborations Using the Examples of Halle, Jena and Leipzig
Creators: name: Akbaritabar, Aliakbar
Publisher: name: arXiv
Year: 2021
Subjects: subject: Digital Libraries (cs.DL)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: Examining effectiveness of institutional scientific coalitions can inform future policies. This is a study on the structure of scientific collaborations in three cities in central Germany. Since 1995, the three universities of this region have formed and maintained a coalition which led to the establishment of an interdisciplinary center in 2012, i.e., German Center for Integrative Biodiversity Research (iDiv). We investigate whether the impact of the former coalition is evident in the region's structure of scientific collaborations and the scientific output of the new center. Using publications data from 1996-2018, we build co-authorship networks and identify the most cohesive communities in terms of collaboration, and compare them with communities identified based on publications presented as the scientific outcome of the coalition and new center on their website. Our results show that despite the highly cohesive structure of collaborations presented on the coalition website, there is still much potential to be realized. The newly established center has bridged the member institutions but not to a particularly strong level. We see that geographical proximity, collaboration policies, funding, and organizational structure alone do not ensure prosperous scientific collaboration structures. When new center's scientific output is compared with its regional context, observed trends become less conspicuous. Nevertheless, the level of success the coalition achieved could inform policy makers regarding other regions' scientific development plans.
description: 18 pages, 5 figures, 5 tables
title: Neue Impulse für praxisnahe Ingenieurausbildung
Creators: name: Bargstädt, Hans-Joachim
Publisher: name: Bauhaus-Universität Weimar
Year: 2002
Subjects: subject: Bauingenieurstudium
subject: Praxisbezug
subject: Studienangebot
subject: 620

description: An der Bauhaus-Universität Weimar gibt es vielfältige Antworten auf die Fragen nach der Position der Ingenieurausbildung am Markt und deren praxisnahe Ausrichtung, die bei einem attraktiver gestalteten Studieneinstieg beginnen, sich über ein transparenteres und mit diversen Wechsel- und Abschlussszenarien versehenes Studienmodell fortsetzen, und die schließlich mit einem Spektrum an Ausbildungselementen abgerundet werden, die den Studenten dazu befähigen sollen, kompetenter und nachhaltiger am Berufsmarkt Fuß zu fassen. Der Verfasser hinterfragt die Notwendigkeit neuer Impulse für das Studium, sucht Wege zur Erhöhung der Attraktivität des Einstiegs in das Studium sowie berufs- und praxisorientierten Lernens, stellt das Thüringer Y-Modell eines veränderten Studienablaufs mit der Wahlmöglichkeit zwischen Master- und Diplomabschluss vor.
description: Tag des Baubetriebs 2002 - Tagungsbeiträge: „Über den Strukturwandel zur Konjunktur“ - Innovation – Qualität – Zahlungssicherheit, p. 5
description: Schriften der Professur Baubetrieb und Bauverfahren, vol. 04
A Deep XMM-Newton Observation of the Quasar 3C 287
Creators: name: Salvesen, G.
name: Miller, J. M.
name: Cackett, E.
name: Siemiginowska, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on an XMM-Newton observation of the z=1.055 quasar and Giga-hertz Peaked Spectrum (GPS) source 3C 287. Our 62.3 ksec observation provides an exceptional X-ray view of a prominent member of this important subclass of active galactic nuclei (AGN). The X-ray spectra of 3C 287 are consistent with a simple absorbed power-law with a spectral index of Gamma = 1.72 +/- 0.02. Our fits imply a bolometric luminosity of L = 5.8 +/- 0.2 E+45 erg/s over the 0.3-10.0 keV band; this gives a mass lower limit of M > 4.6 E+7 Msun, assuming X-rays contribute 10% of the bolometric luminosity and radiation at the Eddington limit. Iron emission lines are common in the X-ray spectra of many AGN, but the observed spectra appear to rule out strong emission lines in 3C 287. The simple power-law spectrum and absence of strong emission lines may support a picture where our line of sight intersects a relativistic jet. Milliarcsecond radio imaging of 3C 287 appears to support this interpretation. We discuss our results in the context of different AGN sub-classes and the possibility that GPS sources harbor newly-formed black hole jets.
description: 5 pages, 2 color figures. Uses emulateapj.sty and apjfonts.sty. Accepted for publication in ApJ
Trends in U.S. Irrigated Agriculture: Increasing Resilience Under Water Supply Scarcity
Creators: name: Hrozencik, Aaron
name: Aillery, Marcel
name: Hrozencik, Aaron
name: Aillery, Marcel
Publisher: name: Unknown
Year: 2021
Subjects: subject: Resource /Energy Economics and Policy
subject: Agricultural water conservation
subject: drought
subject: irrigated agriculture
subject: irrigation efficiency

description: Irrigated agriculture is a critically important component of the U.S. farm economy. Irrigated production expanded significantly over the last century, as public reclamation policy and technological innovations opened new lands to irrigated production.
Rigidity-based approach to the boson peak in amorphous solids: from sphere packing to amorphous silica
Creators: name: Wyart, Matthieu
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Glasses have a large excess of low-frequency vibrational modes in comparison with continuous elastic body, the so-called Boson Peak, which appears to correlate with several crucial properties of glasses, such as transport or fragility. I review recent results showing that the Boson Peak is a necessary consequence of the weak connectivity of the solid. I explain why in assemblies repulsive spheres the boson peak shifts up to zero frequency as the pressure is lowered toward the jamming threshold, and derive the corresponding exponent. I show how these ideas capture the main low-frequency features of the vibrational spectrum of amorphous silica. These results extend arguments of Phillips on the presence of floppy modes in under-constrained covalent networks to glasses where the covalent network is rigid, or when interactions are purely radial.
description: 10 pages, 7 figures
Comparative Analysis of Cryptographic Key Management Systems
Creators: name: Kuzminykh, Levgeniia
name: Ghita, Bogdan
name: Shiaeles, Stavros
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Managing cryptographic keys can be a complex task for an enterprise and particularly difficult to scale when an increasing number of users and applications need to be managed. In order to address scalability issues, typical IT infrastructures employ key management systems that are able to handle a large number of encryption keys and associate them with the authorized requests. Given their necessity, recent years have witnessed a variety of key management systems, aligned with the features, quality, price and security needs of specific organisations. While the spectrum of such solutions is welcome and demonstrates the expanding nature of the market, it also makes it time consuming for IT managers to identify the appropriate system for their respective company needs. This paper provides a list of key management tools which include a minimum set of features, such as availability of secure database for managing keys, an authentication, authorization, and access control model for restricting and managing access to keys, effective logging of actions with keys, and the presence of an API for accessing functions directly from the application code. Five systems were comprehensively compared by evaluating the attributes related to complexity of the implementation, its popularity, linked vulnerabilities and technical performance in terms of response time and network usage. These were Pinterest Knox, Hashicorp Vault, Square Keywhiz, OpenStack Barbican, and Cyberark Conjur. Out of these five, Hachicorp Vault was determined to be the most suitable system for small businesses.
description: 20th International Conference on Next Generation Teletraffic and Wired/Wireless Advanced Networks and Systems, NEW2AN 2020 and 13th Conference on the Internet of Things and Smart Spaces, ruSMART 2020
Building and running a computable general equilibrium tax model of Italy
Creators: name: Gesualdo, Maria
Publisher: name: IMT Alti Studi Lucca
Year: 2014
Subjects: HB Economic Theory

description: In dealing with computable general equilibrium modelling, this thesis builds and runs a computable equilibrium (CGE) tax
model for Italy, with the aim of policy analysis. It demonstrates in considerable detail the methodology to incorporate a fiscal extension to the national comparative-static
computable general equilibrium model of Italy. The output is a model featuring a detailed modelling of a full range of direct and indirect taxes, enabling the evaluation
of alternative proposal for tax reforms. Within the fiscal extension, a comprehensive Value-Added-Tax (VAT) framework has been developed, which accounts for weaknesses
of the current European VAT system, such as the taxation of trade and the taxation of the public bodies and the exemptions in the public interest. In addition,
a special emphasis has been given to sectors national accounts, with detailed equations describing revenue and expenditure items. The contribution this thesis
makes is to fill the existing gap in the Italian CGE literature, as the model is designed for the Ministry of Economy and Finance, intended to provide practical
policy recommendation. In using the model for policy analysis, a static general equilibrium methodology for evaluating alternative industrial and fiscal reforms
is presented. Two illustrative simulations are performed. First, the economic impact of the shutdown of the ILVA Taranto steel-plant is assessed, giving new insights
on the Italian industrial policy. The top-down regional dimension, together with the multi-sectoral supply-demand interaction and the multi-production structure
of the economy make the model especially well-suitable for the assessment of industrial policy, at national, sectoral and regional level. Simulation results show
a negligible economic damage at national level, with changes in the macro variables driving sectoral results. At regional level, when direct and indirect effects
on regional economic activities from the removal of the plant are taken into account, it is not always the case that Italian regions suffer from the removal of the
ILVA plant. Second, in response to calls for a simplification of the current EU VAT system, and of the fiscal consolidation need faced by Italy, a redesign of
the VAT system is considered. Using the developed VAT model, an equalising VAT rate reform is performed. The simulation suggests that a phase-broadening is desirable,
as results show a welfare gain resulting from the implemented policy.