cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Measurement of the shape of the boson transverse momentum distribution in ppbar -> Z/gamma* -> ee+X events produced at sqrt{s}=1.96 TeV
Creators: name: D0 Collaboration
name: Abazov, V.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present a measurement of the shape of the Z/gamma* boson transverse momentum (qT) distribution in ppbar -> Z/gamma* -> ee+X events at a center-of-mass energy of 1.96 TeV using 0.98 fb-1 of data collected with the D0 detector at the Fermilab Tevatron collider. The data are found to be consistent with the resummation prediction at low qT, but above the perturbative QCD calculation in the region of qT>30 GeV/c. Using events with qT<30 GeV/c, we extract the value of g2, one of the non-perturbative parameters for the resummation calculation. Data at large boson rapidity y are compared with the prediction of resummation and with alternative models that employ a resummed form factor with modifications in the small Bjorken x region of the proton wave function.
description: 7 pages, 4 figures, published in Phys. Rev. Lett 100, 102002 (2008)
Risk of SARS-CoV-2 Reinfection in Children within the 12 Months Following Mild COVID-19: Insights from a Survey Study
Creators: name: Di Chiara, Costanza
name: Boracchini, Riccardo
name: Cantarutti, Anna
name: Kakkar, Fatima
name: Oletto, Andrea
name: Padoan, Andrea
name: Donà, Daniele
name: Giaquinto, Carlo
Publisher: name: Zenodo
Year: 2024

description: Full publication available at https://zenodo.org/records/11279707
Determinants of the level of child spacing awareness among females of childbearing age iniHorseed village, -Somalia,2023
Creators: name: Abdinasir, Ibrahim Mohamud
Publisher: name: Zenodo
Year: 2025
Subjects: Determinants of the level of child spacing awareness among females of childbearing age iniHorseed village, -Somalia,2023

description: ABSTRACT

Background: Uncontrolled ipopulation igrowth ihas ibeen ia ichallenging iissue, icontinued iwith high ifertility levels, ialong iwith ilowering imortality irates, iwhich ihave iresulted iin ia ilarge disparity between ibirth iand ideath irates. Globally, iin i2020, iaccording ito ithe iUnited iNation ifamily iplanning iutilization ireport, iit  was iestimated ithat i1.1 ibillion iof ithe i1.9 ibillion ireproductively iactive iwomen i(15-49 iyears) are iestimated ito ineed ifamily iplanning, iIn iAfrica, i42% iof ireproductive-aged iwomen iuse iany iform iof icontraceptive. iNot surprisingly, i22% iof iAfrican iwomen ihad iunmet ineeds ifor ifamily iplanning ithe imajority shared iby iSub-Saharan iAfrica iwhich iis ithe ihighest iin ithe iworld.

Objectives: The iprimary igoal iof ithis istudy iis ito idetermine ithe ilevel iof ichildispacingiawareness among ifemales iof ichildbearing iage iin iHorseed ivillage, Baidoa, iSomalia.
Natural-basalt-originated hierarchical nano porous zeolite with strong and selective gas separation capability
Creators: name: Hwang, Kyung-Jun
name: Balathanigaimani, M.S.
name: Choi, Tae Seung
name: Jin, Sungho
name: Do Yoon, Soon
name: Shim, Wang Geun
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Space Science
subject: Medicine
subject: Biotechnology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Marine Biology
subject: Plant Biology

description: Nanostructured zeolite 13X, synthesized from basalt rock via alkali fusion and hydrothermal procedures, demonstrates excellent adsorption performance for light gases (CO2, CH4, N2, and H2). Its robust CO2 separation properties, evident in the adsorption capacity and selectivity order (CO2 >> CH4 > N2 >> H2). The measured adsorption isotherms fit well with the Sips equation, and heterogeneous adsorption behaviors correlate with the isosteric heat of adsorption and adsorption energy distribution. Predicted selectivities via ideal adsorbed solution theory range from 990 to 1,415 (CO2/H2), 244–360 (CO2/N2), and 135–254 (CO2/CH4), indicating significant potential for adsorptive CO2 separation. Natural-basalt-originated, nanostructured zeolite has been created for strong and selective gas adsorption characteristics useful for engineering applications including energy source creation and environmental cleaning, with the selectivity strongly correlated with polarizability.
Quantum Monte Carlo Study of a Dynamic Hubbard Model
Creators: name: Bouadim, K.
name: Enjalran, M.
name: Hebert, F.
name: Batrouni, G. G.
name: Scalettar, R. T.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The `dynamic' Hubbard Hamiltonian describes interacting fermions on a lattice whose on-site repulsion is modulated by a coupling to a fluctuating bosonic field. We investigate one such model, introduced by Hirsch, using the determinant Quantum Monte Carlo method. Our key result is that the extended s-wave pairing vertex, repulsive in the usual static Hubbard model, becomes attractive as the coupling to the fluctuating Bose field increases. The sign problem prevents us from exploring a low enough temperature to see if a superconducting transition occurs. We also observe a stabilization of antiferromagnetic correlations and the Mott gap near half-filling, and a near linear behavior of the energy as a function of particle density which indicates a tendency toward phase separation.
Transverse Tau Polarization in Decays of the Top and Bottom Quarks in the Weinberg Model of CP Non-conservation
Creators: name: Soni, D. Atwood G. Eilam A.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that the transverse polarization asymmetry of the $τ$-lepton in the decay $t\rightarrow b τν$ is extremely sensitive to CP violating phases arising from the charged Higgs exchange in the Weinberg model of CP non-conservation. Qualitatively, the polarization asymmetries are enhanced over rate or energy asymmetries by a factor of $\approx {m_t\over m_τ}\approx O(100)$. Thus for optimal values of the parameters the method requires $\approx 10^4$ top pairs to be observable rather than $10^7$ needed for rate or energy asymmetries. We also examine $τ$ polarization in b decays via $b \rightarrow c ντ$ and find that it can also be very effective in constraining the CP violation parameters of the extended Higgs sector.
description: 11,1 figure, SLAC-PUB-6083
title: ADCO, Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome IX, Cart. 193 (11 H 78), f. 0014r
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: cartulaire

description: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome IX, Archives départementales de la Côte-d'Or, Cart. 193 (11 H 78), f. 0014r, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome IX, Archives départementales de la Côte-d'Or, Cart. 193 (11 H 78), f. 0014r, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
Viscosity Bound Violation in Higher Derivative Gravity
Creators: name: Brigante, Mauro
name: Liu, Hong
name: Myers, Robert C.
name: Shenker, Stephen
name: Yaida, Sho
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Motivated by the vast string landscape, we consider the shear viscosity to entropy density ratio in conformal field theories dual to Einstein gravity with curvature square corrections. After field redefinitions these theories reduce to Gauss-Bonnet gravity, which has special properties that allow us to compute the shear viscosity nonperturbatively in the Gauss-Bonnet coupling. By tuning of the coupling, the value of the shear viscosity to entropy density ratio can be adjusted to any positive value from infinity down to zero, thus violating the conjectured viscosity bound. At linear order in the coupling, we also check consistency of four different methods to calculate the shear viscosity, and we find that all of them agree. We search for possible pathologies associated with this class of theories violating the viscosity bound.
description: 23 pages, 2 figures; v2: typos corrected, references added, notes added; v3: subsections IV.C and IV.D eliminated, comments on the null energy condition eliminated, minor revisions made
Enhanced strength-ductility synergy in an ultra-strong copper alloy via coherent nanoprecipitates and stress-induced twinning
Creators: name: Jin, Kui
name: Li, Jiangnan
name: Li, Caiju
name: Lu, Qiong
name: Xu, Zunyan
name: You, Yuanqi
name: Gao, Peng
name: Liu, Liang
name: Yi, Jianhong
name: Eckert, Jurgen
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Biophysics
subject: Space Science
subject: Physical Sciences not elsewhere classified
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Mental Health
subject: Plant Biology
subject: Computational Biology

description: Deformation twins (DTs) and stacking faults (SFs) are rarely found in Cu-20Ni-20Mn alloy, which limits further strengthening of alloy. Here, we report ultra-strong Cu-20Ni-20Mn alloy prepared by introducing a high density of coherent nanoprecipitates. The ultimate tensile strength (UTS) of alloy can be largely enhanced to 1624.7 ± 14.7 MPa, while maintaining an acceptable elongation of 7.3 ± 0.5%. We find that the coherent nanoprecipitates contribute to an ultra-high true stress up to about 1740 MPa, which facilitate the formation of DTs. The strength and ductility improvement stems from the synergistic effect of dislocations, nanoprecipitates and DTs. The Cu-20Ni-20Mn alloy sheet exhibiting an unprecedented strength-ductility synergy has been prepared by a two-step rolling process. The ultrafine grain structure containing substantial deformation twins coupling with homogeneously distributed nano-coherent precipitates accounts for the superior mechanical properties.
Adjusting to Change: The Jewish Community Center Movement in Postwar Urban America, 1945-1980
Creators: name: Oren, Avigail S.
Publisher: name: Carnegie Mellon University
Year: 2017
Subjects: History

description: In the decades following World War II, urban American JCCs became more committed to promoting and fostering their members' Jewish identity and, at the same time, opened up their spaces and their programs to Americans of all religions and races; they simultaneously became more particularistic and more universalistic. This bifurcation, I will show, resulted from pragmatic needs as much as from ideological principles. Structural changes like postwar deindustrialization and suburbanization caused urban depopulation, shrinking urban JCC's membership rolls and constraining their access to financial resources. Considerations about equal access and equal opportunity spurred by the Black Freedom Movement raised functional questions about the differences between being a member of an organization and being a participant in its programs. The economic and political instability of the 1970s, including the riots and financial collapse of large cities that characterized the urban crisis, had the combined effect of reducing JCC revenue and creating new federal antipoverty programs that JCCs could use to fund new services—thought it meant that the services, if not the agencies, had to implement nonsectarian enrollment procedures. In responding to all of these structural, functional, and financial changes, the JCC movement gradually opened up their agencies to non-Jews and, correspondingly, intensified their commitment to Jewish particularism.
Does Sex Induce a Phase Transition?
Creators: name: de Oliveira, P. M. C.
name: de Oliveira, S. Moss
name: Stauffer, D.
name: Cebrat, S.
name: Pekalski, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: We discovered a dynamic phase transition induced by sexual reproduction. The dynamics is a pure Darwinian rule with both fundamental ingredients to drive evolution: 1) random mutations and crossings which act in the sense of increasing the entropy (or diversity); and 2) selection which acts in the opposite sense by limiting the entropy explosion. Selection wins this competition if mutations performed at birth are few enough. By slowly increasing the average number m of mutations, however, the population suddenly undergoes a mutational degradation precisely at a transition point mc. Above this point, the "bad" alleles spread over the genetic pool of the population, overcoming the selection pressure. Individuals become selectively alike, and evolution stops. Only below this point, m < mc, evolutionary life is possible. The finite-size-scaling behaviour of this transition is exhibited for large enough "chromosome" lengths L. One important and surprising observation is the L-independence of the transition curves, for large L. They are also independent on the population size. Another is that mc is near unity, i.e. life cannot be stable with much more than one mutation per diploid genome, independent of the chromosome length, in agreement with reality. One possible consequence is that an eventual evolutionary jump towards larger L enabling the storage of more genetic information would demand an improved DNA copying machinery in order to keep the same total number of mutations per offspring.
description: 28 pages, 16 figures
Die Herausforderungen der Gewerkschaften im 21. Jahrhundert
Creators: name: Schroeder, Wolfgang
Publisher: name: Universität Kassel
Year: 2014
Subjects: subject: 330
subject: Deutschland
subject: Gewerkschaft
subject: Geschichte 2001-2014

description: Dieser Artikel ist eine überarbeitete, komprimierte Version des Beitrags „Gewerkschaften im Transformationsprozess: Herausforderungen, Strategien und Machtressourcen“ aus dem im Jahr 2014 herausgegebenen Handbuch Gewerkschaften in Deutschland, 2. Auflage von Wolfgang Schroeder.
A note on 2D chiral gravity and chiral bosons
Creators: name: Bastianelli, Fiorenzo
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Quantization of two dimensional chiral matter coupled to gravity induces an effective action for the zweibein field which is both Weyl and Lorentz anomalous. Recently, the quantization of this induced action has been analyzed in the light-cone gauge as well as in the conformal gauge. An apparent mismatch between the results obtained in the two gauges is analyzed and resolved by properly treating the Lorentz field as a chiral boson.
description: 7 pages, plain TeX, USITP-92-09 (minor correction in the list of references)
Finite temperature effective action and thermalization of perturbations
Creators: name: Elmfors, Per
name: Enqvist, Kari
name: Vilja, Iiro
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The effective action is computed for the \lphi--theory at finite temperature for small perturbations about a constant background field, using a generalized tadpole method. We find the complete effective action, including the real and imaginary parts, to all orders in derivatives and to order ${\cal O}(λ^2)$. We demonstrate that the high $T$ approximation, where only the zero Matsubara frequency is included, is incorrect for the imaginary part even though it is UV-finite. The solutions of the dispersion relations show that initial perturbations do not necessarily thermalize fast enough to be absent at the onset of phase transition.
description: 25 pages, plain TEX, 7 figures not included, NORDITA 93/22 P
title: A Critical Review and Assessment of Different Thermoviscoplastic Material Models for Simultaneous Hot/Cold Forging Analysis
Creators: name: Nahrmann, Marvin
name: Matzenmiller, Anton
Publisher: name: Universität Kassel
Year: 2020
Subjects: subject: model assessment
subject: thermo-viscoplasticity
subject: parameter identification
subject: simultaneous hot/cold forging
subject: thermo-mechanical coupled FE analysis
subject: model validation
subject: 620
subject: Viskoplastizität
subject: Thermomechanische Eigenschaft
subject: Parameteridentifikation
subject: Schmieden
subject: Kaltumformen
subject: Warmumformen

description: Gefördert im Rahmen des Projekts DEAL
PREDICTION OF BEST TYPE OF BRIDGE FOUNDATION USING ARTIFICIAL INTELLIGENCE TECHNIQUE
Creators: name: Premanand Kumbar
Publisher: name: Zenodo
Year: 2017

description: Soil- structure interaction is the challenging domine, as soil is heterogeneous in nature and structural component ishomogeneous in nature. For selection of type of foundation to any particular structure in good old method we have to do soilinvestigation. As soil investigation is a time consuming process to bridge the time logging through this research article wearticulated a procedure where in we stakeholder give input data in the form of questions, our designed Artificial IntelligenceTechnique supported GCLISP program based on the answers to questions it perform the best possible solution and gives theoutput as best foundation to that soil as well as that structural loading conditions
title: ADCO, Cart. 186 (11 H 71), f. 0074v
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CBMA/CG21/F.PETOT/2012
name: Petot, Frédéric
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: cartulaire

description: Cartulaire général de Cîteaux, dit de Jean de Cirey, t. II (XVe siècle), tome II, Archives départementales de la Côte-d'Or, C
art. 186 (11 H 71). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire général de Cîteaux, dit de Jean de Cirey, t. II (XVe siècle), tome II, Archives départementales de la
 Côte-d'Or, Cart. 186 (11 H 71), f. 0074v, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https://manuscrits.cbma-
project.eu/
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
Addressing Ambiguity In Object Instance Detection
Creators: name: Hsiao, Edward
Publisher: name: Carnegie Mellon University
Year: 2013
Subjects: subject: 80101 Adaptive Agents and Intelligent Robotics
subject: FOS: Computer and information sciences

description: In this thesis, we study the topic of ambiguity when detecting object instances in scenes with severe clutter and occlusions. Our work focuses on the three key areas: (1) objects that have ambiguous features, (2) objects where discriminative point-based features cannot be reliably extracted, and (3) occlusions. Current approaches for object instance detection rely heavily on matching discriminative point-based features such as SIFT. While one-to-one correspondences between an image and an object can often be generated, these correspondences cannot be obtained when objects have ambiguous features due to similar and repeated patterns. We present the Discriminative Hierarchical Matching (DHM) method which preserves feature ambiguity at the matching stage until hypothesis testing by vector quantization. We demonstrate that combining our quantization framework with Simulated Affine featurescan significantly improve the performance of 3D point-based recognition systems While discriminative point-based features work well for many objects, they cannot be stably extracted on smooth objects which have large uniform regions. To represent these feature-poor objects, we first present Gradient Networks, a framework for robust shape matching without extracting edges. Our approach incorporates connectivity directly on low-level gradients and significantly outperforms approaches which use only local information or coarse gradient statistics. Next, we present the Boundary and Region Template (BaRT) framework which incorporates an explicit boundary representation with the interior appearance of the object. We show that the lack of texture in the object interior is actually informative and that an explicit representation of the boundary performs better than a coarse representation. While many approaches work well when objects are entirely visible, their performance decrease rapidly with occlusions. We introduce two methods for increasing the robustness of object detection in these challenging scenarios. First, we present a framework for capturing the occlusion structure under arbitrary object viewpoint by modeling the Occlusion Conditional Likelihood that a point on the object is visible given the visibility of all other points. Second, we propose a method to predict the occluding region and score a probabilistic matching pattern by searching for a set of valid occluders. We demonstrate significant increase in detection performance under severe occlusions.
Modeling disorder in graphene
Creators: name: Pereira, Vitor M.
name: Santos, J. M. B. Lopes dos
name: Neto, A. H. Castro
Publisher: name: arXiv
Year: 2007
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a study of different models of local disorder in graphene. Our focus is on the main effects that vacancies -- random, compensated and uncompensated --, local impurities and substitutional impurities bring into the electronic structure of graphene. By exploring these types of disorder and their connections, we show that they introduce dramatic changes in the low energy spectrum of graphene, viz. localized zero modes, strong resonances, gap and pseudogap behavior, and non-dispersive midgap zero modes.
description: 16 pages, lower resolution figures
$b \to s γ$ Decay and Supersymmetry
Creators: name: Barbieri, R.
name: Giudice, G. F.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The inclusive radiative $B$-decay is a sensitive probe of new physics, especially if related to the virtual exchange of a charged Higgs boson. Supersymmetric models provide a particularly interesting example. In the limit of exact supersymmetry, BR($b \to sγ$)~=~0, due to the vanishing of any magnetic-moment transition operator. We illustrate the impact of this constraint for realistic values of the supersymmetry-breaking parameters.
description: 7 pages, CERN-TH.6830/93 (Minor changes; a comment on the case $\tan \beta$ >1 has been added)
The Fractal Density Structure in Supersonic Isothermal Turbulence: Solenoidal versus Compressive Energy Injection
Creators: name: Federrath, Christoph
name: Klessen, Ralf S.
name: Schmidt, Wolfram
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In a systematic study, we compare the density statistics in high resolution numerical experiments of supersonic isothermal turbulence, driven by the usually adopted solenoidal (divergence-free) forcing and by compressive (curl-free) forcing. We find that for the same rms Mach number, compressive forcing produces much stronger density enhancements and larger voids compared to solenoidal forcing. Consequently, the Fourier spectra of density fluctuations are significantly steeper. This result is confirmed using the Delta-variance analysis, which yields power-law exponents beta~3.4 for compressive forcing and beta~2.8 for solenoidal forcing. We obtain fractal dimension estimates from the density spectra and Delta-variance scaling, and by using the box counting, mass size and perimeter area methods applied to the volumetric data, projections and slices of our turbulent density fields. Our results suggest that compressive forcing yields fractal dimensions significantly smaller compared to solenoidal forcing. However, the actual values depend sensitively on the adopted method, with the most reliable estimates based on the Delta-variance, or equivalently, on Fourier spectra. Using these methods, we obtain D~2.3 for compressive and D~2.6 for solenoidal forcing, which is within the range of fractal dimension estimates inferred from observations (D~2.0-2.7). The velocity dispersion to size relations for both solenoidal and compressive forcing obtained from velocity spectra follow a power law with exponents in the range 0.4-0.5, in good agreement with previous studies.
description: 17 pages, 11 figures, ApJ in press, minor changes to language, simulation movies available at http://www.ita.uni-heidelberg.de/~chfeder/videos.shtml?lang=en
Adaptive Motion Planning
Creators: name: Sanjiban  Choudhury
Publisher: name: Carnegie Mellon University
Year: 2018
Subjects: subject: 80101 Adaptive Agents and Intelligent Robotics
subject: FOS: Computer and information sciences

description: Mobile robots are increasingly being deployed in the real world in response to a heightened demand for applications such as transportation, delivery and inspection. The motion planning systems for these robots are expected to have consistent performance across the wide range of scenarios that they encounter. While state-of-the-art planners, with provable worst-case guarantees, can be employed to solve these planning problems, their finite time performance varies across scenarios. This thesis proposes that the planning module for a robot must adapt its search strategy to the distribution of planning problems encountered to achieve real-time performance. We address three principal challenges of this problem. Firstly, we show that even when the planning problem distribution is fixed, designing a nonadaptive planner can be challenging as the performance of planning strategies fluctuates with small changes in the environment. We characterize the existence of complementary strategies and propose to hedge our bets by executing a diverse ensemble of planners. Secondly, when the distribution is varying, we require a meta-planner that can automatically select such an ensemble from a library of black-box planners. We show that greedily training a list of predictors to focus on failure cases leads to an effective meta-planner. For situations where we have no training data, we show that we can learn an ensemble on-the-fly by adopting algorithms from online paging theory. Thirdly, in the interest of efficiency, we require a white-box planner that directly adapts its search strategy during a planning cycle. We propose an efficient procedure for training adaptive search heuristics in a data-driven imitation learning framework. We also draw a novel connection to Bayesian active learning, and propose algorithms to adaptively evaluate edges of a graph. Our approach leads to the synthesis of a robust real-time planning module that allows a UAV to navigate seamlessly across environments and speed-regimes. We evaluate our framework on a spectrum of planning problems and show closed-loop results on 3 UAV platforms - a full-scale autonomous helicopter, a large scale hexarotor and a small quadrotor. While the thesis was motivated by mobile robots, we have shown that the individual algorithms are broadly applicable to other problem domains such as informative path planning and manipulation planning.We also establish novel connections between the disparate fields of motion planning and active learning, imitation learning and online paging which opens doors to several new research problems.
Conformal deformation of spacelike surfaces in Minkowski space
Creators: name: Musso, Emilio
name: Nicolodi, Lorenzo
Publisher: name: arXiv
Year: 2007
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 58A17, 53A30

description: We address the problem of second order conformal deformation of spacelike surfaces in compactified Minkowski 4-space. We explain the construction of the exterior differential system of conformal deformations and discuss its general and singular solutions. In particular, we show that isothermic surfaces are singular solutions of the system, which implies that a generic second order deformable surface is not isothermic. This differs from the situation in 3-dimensional conformal geometry, where isothermic surfaces coincide with deformable surfaces.
description: 18 pages, final version to appear in Houston J. Math.
2,2’-Dipyridylamine: A tripod ligand enabling practical access to diaryl ethers via Cu-catalyzed coupling reaction
Creators: name: Chen, Yuanguang
name: Xu, Huashen
name: Chen, Lu
name: Hou, Anyuan
name: Chen, Guoliang
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified

description: 2,2’-dipyridylamine (DPA) is hereby firstly reported as a novel and efficient tridentate ligand for promoting copper(I)-catalyzed C-O/S coupling reactions of abundant aryl bromines with related phenols or thiophenols. The key to this very discovery is the identification of an N-donor tripod ligand (DPA), and such a reaction allows the conversion of simple starting materials to complex diaryl ethers or diaryl thioethers, which are important synthetic intermediates in the preparation of bioactive molecules.
Syllabus: South-South Dialogue: Perceptions and Reflections from the Global South
Creators: name: Naguib, Rim
Publisher: name: Zenodo
Year: 2014

description: Core Curriculum SEMR 412/4038 Syllabus: South-South Dialogue: Perceptions and Reflections from the Global South This videoconference dialogue course aims at offering a comparative view of and a fresh perspective on the ‘Global South’. The course shall use an interdisciplinary approach to explore the social, economic, political and cultural contexts of some of the countries/regions that constitute what is known today as the ‘Global South’ in an attempt to outline the commonalities as well as the differences that exist within this global conglomerate of nation-states. In this light, AUC will be holding videoconferences with various partner-universities and institutions in order for the class to share perspectives and first-hand experiences relating to the themes and topics of discussion with the partners. Specific readings will be assigned by AUC and the partnering universities to have a general introduction to the countries that will be studied and a specific background on the linkage these countries/geographical areas have with the Global South as an economic and a political amalgam. This is an interdisciplinary course that can be relevant to students form different backgrounds and disciplines, especially those that have an interest in contemporary development issues.
The Chiral Soliton of the Nambu Jona-Lasinio Model with Vector and Axial Vector Mesons
Creators: name: Zückert, U.
name: Alkofer, R.
name: Reinhardt, H.
name: Weigel, H.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The self-consistent chiral soliton of the Nambu--Jona-Lasinio model including the $ω,ρ$ and $a_1$ (axial-) vector meson fields besides the chiral angle is investigated. The resulting energy spectrum of the one particle Dirac Hamiltonian is strongly distorted leading to a polarized Dirac sea which carries the complete baryon number. This supports Witten's conjecture that baryons can be described as topological solitons. The exploration of the isoscalar mean squared radius of the nucleon exhibits that the repulsive character of the isoscalar vector field $ω$ as well as the attractive features of the (axial-) vector mesons $ρ$ and $a_1$ are reproduced in the Nambu--Jona-Lasinio model. The axial charge of the nucleon $g_A$ comes out far too small. This can be understood as an artifact of the proper time regularization prescription.
description: 23 pages LaTeX 4 figures (not included, available upon request), UNIT\"U-THEP-1/1993
Quasi-Periodic Solutions for matrix nonlinear Schroedinger Equations
Creators: name: Wisse, M. A.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Adler-Kostant-Symes theorem yields isospectral hamiltonian flows on the dual $\tilde\grg^{+*}$ of a Lie subalgebra $\tilde\grg^+$ of a loop algebra $\tilde\grg$. A general approach relating the method of integration of Krichever, Novikov and Dubrovin to such flows is used to obtain finite-gap solutions of matrix Nonlinear Schrödinger Equations in terms of quotients of $\tet$-functions.
description: 11 pages
Adaptive Model Predictive Control with Generalized Orthonormal Basis Functions
Creators: name: Sanchez, Juan Eduardo Morinelly
Publisher: name: Carnegie Mellon University
Year: 2017
Subjects: subject: 90499 Chemical Engineering not elsewhere classified
subject: FOS: Chemical engineering

description: An adaptive model predictive control (MPC) method using models derived from orthonormal basis functions is presented. The defining predictor dynamics are obtained from state-space realizations of finite truncations of generalized orthonormal basis functions (GOBF). A structured approach to define multivariable system models with customizable, open-loop stable linear dynamics is presented in Chapter 2. Properties of these model objects that are relevant to the adaptation component of the overall scheme, are also discussed. In Chapter 3, non-adaptive model predictive control policies are presented with the definition of extended state representations through filter operations that enable output feedback. An infinite horizon set-point tracking policy which always exists under the adopted modeling framework is presented. This policy and its associated cost are included as the terminal stage elements for a more general constrained case. The analysis of robust stability guarantees for the non-adaptive constrained formulation is presented, under the assumption of small prediction errors. In Chapter 4, adaptation is introduced and the certainty equivalence constrained MPC policy is formulated under the same framework of its non-adaptive counterpart. Information constraints that induce the excitation of the signals relevant to the adaptation process are formulated in Chapter 5. The constraint generation leverages the GOBF model structure by enforcing a sufficient richness condition directly on the state elements relevant to the control task. This is accomplished by the definition of a selection procedure that takes into account the characteristics of the most current parameter estimate distribution. Throughout the manuscript, illustrative simulation examples are provided with respect to minimal plant models. Concluding remarks and general descriptions for potential future work are outlined in Chapter 6.
On the Collision of Cosmic Superstrings
Creators: name: Copeland, E. J.
name: Firouzjahi, H.
name: Kibble, T. W. B.
name: Steer, D. A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the formation of three-string junctions between (p,q)-cosmic superstrings, and collisions between such strings and show that kinematic constraints analogous to those found previously for collisions of Nambu-Goto strings apply here too, with suitable modifications to take account of the additional requirements of flux conservation. We examine in detail several examples involving collisions between strings with low values of p and q, and also examine the rates of growth or shrinkage of strings at a junction. Finally, we briefly discuss the formation of junctions for strings in a warped space, specifically with a Klebanov-Strassler throat, and show that similar constraints still apply with changes to the parameters taking account of the warping and the background flux.
description: 13 pages, 2 figures
Adaptive Load Management: Multi-Layered And Multi-Temporal Optimization Of The Demand Side In Electric Energy Systems
Creators: name: Jhi-Young  Joo
Publisher: name: Carnegie Mellon University
Year: 2013
Subjects: subject: Computer Engineering
subject: 90699 Electrical and Electronic Engineering not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Well-designed demand response is expected to play a vital role in operating
power systems by reducing economic and environmental costs. However,
the current system is operated without much information on the benefits of
end-users, especially the small ones, who use electricity. This thesis proposes a
framework of operating power systems with demand models including the diversity
of end-users’ benefits, namely adaptive load management (ALM). Since
there are a large number of end-users having different preferences and conditions
in energy consumption, the information on the end-users’ benefits needs
to be aggregated at the system level. This leads us to model the system in
a multi-layered way, including end-users, load serving entities, and a system
operator. On the other hand, the information of the end-users’ benefits can be
uncertain even to the end-users themselves ahead of time. This information is
discovered incrementally as the actual consumption approaches and occurs. For
this reason ALM requires a multi-temporal model of a system operation and
end-users’ benefits within. Due to the different levels of uncertainty along the
decision-making time horizons, the risks from the uncertainty of information
on both the system and the end-users need to be managed. The methodology
of ALM is based on Lagrange dual decomposition that utilizes interactive communication
between the system, load serving entities, and end-users. We show
that under certain conditions, a power system with a large number of end-users
can balance at its optimum efficiently over the horizon of a day ahead of operation
to near real time. Numerical examples include designing ALM for the
right types of loads over different time horizons, and balancing a system with a large number of different loads on a congested network. We conclude that
with the right information exchange by each entity in the system over different
time horizons, a power system can reach its optimum including a variety of
end-users’ preferences and their values of consuming electricity.
Faciliter ses recherches d'articles grâce au plugin Unpaywall
Creators: name: Muller, Floriane
name: Santos, Anouk
Publisher: name: Zenodo
Year: 2022
Subjects: Articles scientifiques
Open Access
Paywall

description: Présentation utilisée lors du rendez-vous de l'information scientifique organisé par la Bibliothèque de l'Université de Genève le 27 octobre 2022 et consacré à unpaywall. Veuillez noter que cette présentation avait déjà été proposée précédemment, en français et en anglais, mais que les diapositives n'avaient alors pas été téléchargées sur Zenodo.

Objectif : Accéder à des articles scientifiques normalement payants, gratuitement et en un clic, en utilisant le plugin Unpaywall.

Description : Malgré les nombreux abonnements proposés par la Bibliothèque, certains articles restent inaccessibles à moins de payer pour y accéder. Certains outils comme unpaywall permettent de localiser rapidement une version accessible de l'article si elle est présente ailleurs sur le web (par exemple sur un dépôt institutionnel de publications), et d'accéder immédiatement au pdf en un clic.

Sommaire :

    présentation de l'outil

    démonstration du fonctionnement

    détails sur les types d'articles (versions) obtenus grâce à cet outil

    mention d'alternatives : autres outils similaires, services de bibliothèque
title: AN, Registre des écrous du Châtelet, Y5266, f. p1000755
Creators: name: Claustre, Julie
name: Nationales, Archives
name: Archives Nationales
name: Claustre, Julie
name: ArchivesNationales/J.CLAUSTRE/H.REGAZZI/2020
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Châtelet
subject: registre
subject: LaMOP

description: Registre des écrous du Châtelet, Archives Nationales, Y5266. Numérisation en mode image.
description: Bibliographic citation: Archives Nationales, Registre des écrous du Châtelet, Y5266, f. p1000755
Twist-4 Matrix Elements of the Nucleon from Recent DIS Data at CERN and SLAC
Creators: name: Choi, S.
name: Hatsuda, T.
name: Koike, Y.
name: Lee, Su H.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We analyse the recent precision measurements of the lepton-hadron deep inelastic scattering at CERN and SLAC to extract model independent constraints among the nucleon matrix elements of the twist-4 operators. We also study a parameterization of these matrix elements and point out the possibility that the matrix elements of the quark-gluon mixed operator has a negative value of the order of $- (400 \pm 100\ {\rm MeV})^2$ at 5 GeV$^2$ renormalization scale.
description: Latex, 11 pages, 4 figures (available upon request), DOE/ER/40427-05-N93
Fermionic Coset Models as Topological Models
Creators: name: Rossini, G. L.
name: Schaposnik, F. A.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: By considering the fermionic realization of $G/H$ coset models, we show that the partition function for the $U(1)/U(1)$ model defines a Topological Quantum Field Theory and coincides with that for a 2-dimensional Abelian BF system. In the non-Abelian case, we prove the topological character of $G/G$ coset models by explicit computation, also finding a natural extension of 2-dimensional BF systems with non-Abelian symmetry.
description: 14pp
Small, thick, and slow: Thinking about data and research publication in the Humanities in the age of Open and FAIR
Creators: name: O'Donnell, Daniel Paul
Publisher: name: Zenodo
Year: 2019
Subjects: subject: Zenodo
subject: GitHub
subject: Open Research Methods
subject: Data
subject: Humanities
subject: FOS: Humanities

description: We often speak about "Scholarly Communication" as if it is a single enterprise. This is despite our experience, which suggests that every (sub)discipline has different understandings about almost every part of the process: from the value of journals, to the function of referees, to the very point of publication. This is particularly true of the Humanities, which often seem like a complete outlier when it comes to many core aspects of modern networked research communication. They have different monopolistic presses, can be even more difficult to capture using standard bibliometric tools, and, perhaps most importantly, can have completely different understandings as to the purpose and nature of their major processes and elements. In this paper, I look particularly at the question of data and their relation to research publication in the Humanities. I argue that at least some types of traditional humanities data are quite different from those dominant in other disciplines, and that the failure to recognise this has prevented us from fully understanding the strengths of traditional approaches to research in these disciplines. I conclude by discussing an approach to the publication and citation of data in the Humanities that attempts to account for these differences and make it easier to incorporate traditional research in "big data" approaches to aggregation and reuse.
Faciliter ses recherches d'articles grâce au plugin Unpaywall
Creators: name: Muller, Floriane
name: Santos, Anouk
Publisher: name: Zenodo
Year: 2024
Subjects: Articles scientifiques
Open Access
Paywall

description: Présentation utilisée lors du rendez-vous de l'information scientifique organisé par la Bibliothèque de l'Université de Genève le 24 mai 2024 et consacré à unpaywall. 

Objectif : Accéder à des articles scientifiques normalement payants, gratuitement et en un clic, en utilisant le plugin Unpaywall.

Description : Malgré les nombreux abonnements proposés par la Bibliothèque, certains articles restent inaccessibles à moins de payer pour y accéder. Certains outils comme unpaywall permettent de localiser rapidement une version accessible de l'article si elle est présente ailleurs sur le web (par exemple sur un dépôt institutionnel de publications), et d'accéder immédiatement au pdf en un clic.

Sommaire :

    présentation de l'outil

    démonstration du fonctionnement

    détails sur les types d'articles (versions) obtenus grâce à cet outil

    mention d'alternatives : autres outils similaires, services de bibliothèque
Vertical stratification of iron abundance in atmospheres of blue horizontal-branch stars
Creators: name: Khalack, V.
name: LeBlanc, F.
name: Behr, B. B.
name: Wade, G. A.
name: Bohlender, D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The observed slow rotation and abundance peculiarities of certain blue horizontal branch (BHB) stars suggests that atomic diffusion can be important in their stellar atmospheres and can lead to vertical abundance stratification of chemical species in the atmosphere. To verify this hypothesis, we have undertaken an abundance stratification analysis in the atmospheres of six BHB stars, based on recently acquired McDonald-CE spectra. Our numerical simulations show that the iron abundance is vertically stratified in the atmospheres of two stars in M15: B267 and B279. One star WF2-2541 in M13 also appears to have vertically stratified iron abundance, while for WF4-3085 the signatures of iron stratification are less convincing. In all cases the iron abundances increase towards the lower atmosphere. The other two stars in our sample, WF4-3485 and B84, do not show any significant variation of iron with atmospheric depth. Our results support the idea that atomic diffusion dominates other hydrodynamic processes in the atmospheres of BHB stars.
description: 2 pages, published in Contrib. Astron. Obs. Skalnate Pleso