cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: ADCO, Cartulaire de Cîteaux pour la grange et seigneurie d'Ouges (XVe siècle), Cart. 173 (11 H 939), 226 folios, f. 0222
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/2015
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: cartulaire
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Cartulaire de Cîteaux pour la grange et seigneurie d'Ouges (XVe siècle), Archives départementales de la Côte-d'Or, Cart. 173 (11 H 939), 226 folios, f. 0222, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de Cîteaux pour la grange et seigneurie d'Ouges (XVe siècle), Archives départementales de la Côte-d'Or, Cart. 173 (11 H 939), 226 folios, f. 0222, 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
Ghost imaging for an occluded object
Creators: name: Gao, Chao
name: Wang, Xiaoqian
name: Gou, Lidan
name: Feng, Yuling
name: Cai, Hongji
name: Wang, Zhifeng
name: Yao, Zhihai
Publisher: name: arXiv
Year: 2018
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Imaging for an occluded object is usually a difficult problem, in this letter, we introduce an imaging scheme based on computational ghost imaging, which can obtain the image of a target object behind an obstacle. According to our theoretical analysis, once the distance between the object and the obstacle is far enough, one can obtain the image of the object by using ghost imaging technique. The wavelength of the light source also affects the quality of the reconstructed image. In addition, if the bucket detector is placed far away from the obstacle, a tiny point-like detector without collecting lens can be applied to realize the imaging. These theoretical results above have been verified with our numerical simulations. Furthermore, the robustness of this imaging scheme is also investigated.
description: 12 pages, 6 figures
Array-based Spectro-temporal Masking For Automatic Speech Recognition
Creators: name: Moghimi, Amir Reza
Publisher: name: Carnegie Mellon University
Year: 2014
Subjects: subject: Computer Engineering
subject: 90699 Electrical and Electronic Engineering not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Over the years, a variety of array processing techniques have been applied to the problem of enhancing degraded speech to improve automatic speech recognition. In this context, linear beamforming has long been the approach of choice, for reasons including good performance, robustness and analytical simplicity. While various non-linear techniques - typically based to some extent on the study of auditory scene analysis - have also been of interest, they tend to lag behind their linear counterparts in terms of simplicity, scalability and exibility. Nonlinear techniques are also more difficult to analyze and lack the systematic descriptions available in the study of linear beamformers. This work focuses on a class of nonlinear processing, known as time-frequency (T-F) masking - a.k.a. spectro-temporal masking { whose variants comprise a significant portion of the existing techniques. T-F masking is based on accepting or rejecting individual time-frequency cells based on some estimate of local signal quality. Analyses are developed that attempt to mirror the beam patterns used to describe linear processing, leading to a view of T-F masking as "nonlinear beamforming". Two distinct formulations of these "nonlinear beam patterns" are developed, based on different metrics of the algorithms behavior; these formulations are modeled in a variety of scenarios to demonstrate the flexibility of the idea. While these patterns are not quite as simple or all-encompassing as traditional beam patterns in microphone-array processing, they do accurately represent the behavior of masking algorithms in analogous and intuitive ways. In addition to analyzing this class of nonlinear masking algorithm, we also attempt to improve its performance in a variety of ways. Improvements are proposed to the baseline two-channel version of masking, by addressing both the mask estimation and the signal reconstruction stages; the latter more successfully than the former. Furthermore, while these approaches have been shown to outperform linear beamforming in two-sensor arrays, extensions to larger arrays have been few and unsuccessful. We find that combining beamforming and masking is a viable method of bringing the benefits of masking to larger arrays. As a result, a hybrid beamforming-masking approach, called "post-masking", is developed that improves upon the performance of MMSE beamforming (and can be used with any beamforming technique), with the potential for even greater improvement in the future.
The Braided Heisenberg Group
Creators: name: Baskerville, W. K.
name: Majid, S.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We compute the braided groups and braided matrices $B(R)$ for the solution $R$ of the Yang-Baxter equation associated to the quantum Heisenberg group. We also show that a particular extension of the quantum Heisenberg group is dual to the Heisenberg universal enveloping algebra $U_{q}(h)$, and use this result to derive an action of $U_{q}(h)$ on the braided groups. We then demonstrate the various covariance properties using the braided Heisenberg group as an explicit example. In addition, the braided Heisenberg group is found to be self-dual. Finally, we discuss a physical application to a system of n braided harmonic oscillators. An isomorphism is found between the n-fold braided and unbraided tensor products, and the usual `free' time evolution is shown to be equivalent to an action of a primitive generator of $U_{q}(h)$ on the braided tensor product.
description: 33 pages
Integrating workflows to streamline the research lifecycle with OSF
Creators: name: Pfeiffer, Nici
name: Bowman, Sara
Publisher: name: Zenodo
Year: 2019
Subjects: open science management
data sharing platform
research management tool

description: Researchers are busy. Data and materials management and project management are time-consuming; tools for managing the 'housekeeping' tasks of research can have a big impact on a researcher's, or a research team's, efficiency. The non-profit Center for Open Science (COS) seeks to connect and streamline the research workflow through use of its web application, OSF (https://osf.io), and institutional offering, OSF Institutions. Free and open source, OSF manages the entire research lifecycle: planning, execution, reporting, archiving, and discovery. Part version control system, part collaboration tool, and part project management software, OSF facilitates research transparency. OSF streamlines workflows by connecting tools researchers already use — examples include Dropbox, figshare, and Dataverse — allowing resources housed in different services to be displayed in one central location. OSF Institutions creates a seamless user experience by integrating single sign on authentication, and provides a central hub for research projects on a dedicated, branded page. OSF Institutions helps university librarians and administrators gain insight on research collaboration throughout their institutions, and evaluate impact of research investment beyond citations. This talk will highlight the ways the OSF enables open science, streamlines research workflows, and facilitations collaboration.
Selective Area Grown Semiconductor-Superconductor Hybrids: A Basis for Topological Networks
Creators: name: Vaitiekėnas, S.
name: Whiticar, A. M.
name: Deng, M. T.
name: Krizek, F.
name: Sestoft, J. E.
name: Palmstrøm, C. J.
name: Marti-Sanchez, S.
name: Arbiol, J.
name: Krogstrup, P.
name: Casparis, L.
name: Marcus, C. M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We introduce selective area grown hybrid InAs/Al nanowires based on molecular beam epitaxy, allowing arbitrary semiconductor-superconductor networks containing loops and branches. Transport reveals a hard induced gap and unpoisoned 2e-periodic Coulomb blockade, with temperature dependent 1e features in agreement with theory. Coulomb peak spacing in parallel magnetic field displays overshoot, indicating an oscillating discrete near-zero subgap state consistent with device length. Finally, we investigate a loop network, finding strong spin-orbit coupling and a coherence length of several microns. These results demonstrate the potential of this platform for scalable topological networks among other applications.
description: NBI QDEV 2018
Gauge boson masses dominantly generated by Higgs-triplet contributions?
Creators: name: Bamert, P.
name: Kunszt, Z.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss a model in which the Standard Model (SM) Higgs sector has been extended by additional real and complex triplets. The $ρ\approx 1$ constraint is satisfied by restricting the potential to have an enlarged $\hisym $ global symmetry. This is fine tuning, which leads to a decreased predictability in next-to-leading order. In this model, however, the triplet vacuum expectation values may give the dominating contribution to the gauge boson masses. Using a renormalization group argument we constrain this region of the parameter space. Another interesting feature of this model is that one of the neutral scalars doesn't couple to the fermion sector at tree level and therefore could have a relatively large branching ratio to $2γ$'s. It is coupled, however, to the $Z$-boson and therefore it could be produced at LEP via the standard $e^+e^-\rightarrow Zϕ$ mechanism with rates comparable to the ones of the Standard Model.
description: 9 LaTex pages (3 figures available on request), NEIP93-002 and ETH-TH/93-8, References have been updated
Some nonasymptotic results on resampling in high dimension, I: Confidence regions, II: Multiple tests
Creators: name: Arlot, Sylvain
name: Blanchard, Gilles
name: Roquain, Etienne
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62G15 (Primary) 62G09 (Secondary), 62G10 (Primary) 62G09 (Secondary)

description: We study generalized bootstrap confidence regions for the mean of a random vector whose coordinates have an unknown dependency structure. The random vector is supposed to be either Gaussian or to have a symmetric and bounded distribution. The dimensionality of the vector can possibly be much larger than the number of observations and we focus on a nonasymptotic control of the confidence level, following ideas inspired by recent results in learning theory. We consider two approaches, the first based on a concentration principle (valid for a large class of resampling weights) and the second on a resampled quantile, specifically using Rademacher weights. Several intermediate results established in the approach based on concentration principles are of interest in their own right. We also discuss the question of accuracy when using Monte Carlo approximations of the resampled quantities.
description: Published in at http://dx.doi.org/10.1214/08-AOS667; http://dx.doi.org/10.1214/08-AOS668 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
$\mathbb{Z}_2$ boundary twist fields and the moduli space of D-branes
Creators: name: Mattiello, Luca
name: Sachs, Ivo
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We revisit the boundary conformal field theory of twist fields. Based on the equivalence between twisted bosons on a circle and the orbifold theory at the critical radius, we provide a bosonized representation of boundary twist fields and thus a free field representation of the latter. One advantage of this formulation is that it considerably simplifies the calculation of correlation functions involving twist fields. At the same time this also gives access to higher order terms in the operator product expansions of the latter which, in turn, allows to explore the moduli space of marginal deformation of bound states of D-branes. In the process we also generalize some results on correlation functions with excited twist fields.
description: 36 pages, 3 figures, section 3 revised, typos corrected
QCD thermodynamics with 2+1 flavors at nonzero chemical potential
Creators: name: Bernard, C.
name: DeTar, C.
name: Gottlieb, Steven
name: Heller, U. M.
name: Hetrick, J. E.
name: Levkova, L.
name: Sugar, R.
name: Toussaint, D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We present results for the QCD equation of state, quark densities and susceptibilities at nonzero chemical potential, using 2+1 flavor asqtad ensembles with $N_t=4$. The ensembles lie on a trajectory of constant physics for which $m_{ud}\approx0.1m_s$. The calculation is performed using the Taylor expansion method with terms up to sixth order in $μ/T$.
description: 31 pages, 16 figures. Small text additions in section II, style of some graphs changed
Approximation Techniques for Stochastic Combinatorial Optimization Problems
Creators: name: Ravishankar  Krishnaswamy
Publisher: name: Carnegie Mellon University
Year: 2012
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: The focus of this thesis is on the design and analysis of algorithms for basic problems in Stochastic Optimization, specifically a class of fundamental combinatorial optimization problems where there is some form of uncertainty in the input. Since many interesting optimization problems are computationally intractable (NP-Hard), we resort to designing approximation algorithms which provably output good solutions. However, a common assumption in traditional algorithms is that the exact input is known in advance. What if this is not the case? What if there is uncertainty in the input? With the growing size of input data and their typically distributed nature (e.g., cloud computing), it has become imperative for algorithms to handle varying forms of input uncertainty. Current techniques, however, are not robust enough to deal with many of these problems, thus necessitating the need for new algorithmic tools. Answering such questions, and more generally identifying the tools for solving such problems, is the focus of this thesis. The exact problems we study in this thesis are the following: (a) the Survivable Network Design problem where the collection of (source,sink) pairs is drawn randomly from a known distribution, (b) the Stochastic Knapsack problem with random sizes/rewards for jobs, (c) the Multi-Armed Bandits problem, where the individual Markov Chains make random transitions, and finally (d) the Stochastic Orienteering problem, where the random tasks/jobs are located at different vertices on a metric. We explore different techniques for solving these problems and present algorithms for all the above problems with near-optimal approximation guarantees. We also believe that the techniques are fairly general and have wider applicability than the context in which they are used in this thesis.
ТЕРМОМЕХАНИЧЕСКИЙ АНАЛИЗ МАСТЕРБАЧА.
Creators: name: Raxmatullayev, Lutfillo
name: Qiyomov, Sharifjon
name: Karimov, Ma'sud
Publisher: name: Zenodo
Year: 2024

description: В данной работе приданы полиэтилену особые свойства, улучшены его физико-химические свойства. Проверен анализ термостойкости содержания углерода в массовой доле полученных химических веществ.
The Information Infrastructure for BioImage Data (I3D:bio) project to advance FAIR microscopy data management for the community
Creators: name: Schmidt, Christian
name: Bortolomeazzi, Michele
name: Boissonnet, Tom
name: Dohle, Julia
name: Wernet, Tobias
name: Hanne, Janina
name: Nitschke, Roland
name: Kunis, Susanne
name: Bernhardt, Karen
name: Weidtkamp-Peters, Stefanie
name: Ferrando-May, Elisa
Publisher: name: Zenodo
Year: 2024

description: Research data management (RDM) in microscopy and image analysis is a challenging task. Large files in proprietary formats, complex N-dimensional array structures, and various metadata models and formats can make image data handling inconvenient and difficult. For data organization, annotation, and sharing, researchers need solutions that fit everyday practice and comply with the FAIR (Findable, Accessible, Interoperable, Reusable) principles. International community-based efforts have begun creating open data models (OME), an open file format and translation library (OME-TIFF, Bio-Formats), data management software platforms, and microscopy metadata recommendations and annotation tools. Bringing these developments into practice requires support and training. Iterative feedback and tool improvement is needed to foster practical adoption by the scientific community. The Information Infrastructure for BioImage Data (I3D:bio) project works on guidelines, training resources, and practical assistance for FAIR microscopy RDM adoption with a focus on the management platform OMERO and metadata annotations.
description: Funded by Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - 462231789Supported by German BioImaging - Gesellschaft für Mikroskopie und Bildanalyse (GerBI-GMB)
Efficient Garbled RAM
Creators: name: Rajan, Sri Harish Govinda
Publisher: name: Carnegie Mellon University
Year: 2024
Subjects: Computer Engineering

description:  Garbled Circuits (GC) originally proposed by Yao is the cryptographic technique that is traditionally used to perform secure two party computation (2PC) for functions. However, circuits by their nature are static, and if the two parties want to securely compute a RAM program involving dynamic memory accesses, then converting the RAM program to a circuit would incur a polynomial cost in the size of the memory as every memory locations will need to be scanned on each access. To avoid this polynomial blowup, the abstraction of Garbled RAM (GRAM) was introduced by Lu and Ostrovsky to garble RAM programs directly without converting to a circuit. In this work, we use techniques of tri-state circuits (TSC) proposed in the recent work of Heath et. al. to present a new Garbled RAM scheme which matches the best known asymptomatic overhead of O(log3(N)* loglogN) gates per access while providing significant improvements in constant factors. As part of our scheme we propose new constructions for the garbled stack/co-stack data structures which have both an average-case and worst-case cost of O(log N). Our new construction is an improvement over the existing garbled stack/co-stack construction used in all previous works which have a worst-case cost of O(N).
T-odd effects in photon-jet production at the Tevatron
Creators: name: Boer, D.
name: Mulders, P. J.
name: Pisano, C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The angular distribution in photon-jet production in p \bar{p} -> γjet X is studied within a generalized factorization scheme taking into account the transverse momentum of the partons in the initial hadrons. Within this scheme an anomalously large cos(2ϕ) asymmetry observed in the Drell-Yan process could be attributed to the T-odd, spin and transverse momentum dependent parton distribution function h_1^{\perp q}(x, p_{\perp}^2). This same function is expected to produce a cos(2ϕ) asymmetry in the photon-jet production cross section. We give the expression for this particular azimuthal asymmetry, which is estimated to be smaller than the Drell-Yan asymmetry but still of considerable size for Tevatron kinematics. This offers a new possibility to study T-odd effects at the Tevatron.
description: 9 pages, 3 figures; references and discussion added in Section II, matches final version to be published in Phys. Lett. B
Approximation Algorithms for Faster Communication and Cheaper Networks Using Linear Programming
Creators: name: Iglesias, Jennifer
Publisher: name: Carnegie Mellon University
Year: 2017
Subjects: subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: As we are currently in the information age, people expect access to information to exist by default. In order to facilitate the communication of knowledge, efficient networks must be built. In particular, the networks must be built satisfying some constraints while minimizing cost or time. These constraints often make these problems NP-hard. In this thesis, we investigate two different sets of problems: communicating information quickly and building cheap networks. In the communication problems, the goal is to minimize the number of rounds of communication. In the network design problems the goal is to construct a network of minimum cost.
Flavor Changing Scalar Interactions
Creators: name: Hall, Lawrence
name: Weinberg, Steven
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The smallness of fermion masses and mixing angles has recently been been attributed to approximate global $U(1)$ symmetries, one for each fermion type. The parameters associated with these symmetry breakings are estimated here directly from observed masses and mixing angles. It turns out that although flavor changing reaction rates may be acceptably small in electroweak theories with several scalar doublets without imposing any special symmetries on the scalars themselves, such theories generically yield too much CP violation in the neutral kaon mass matrix. Hence in these theories CP must also be a good approximate symmetry. Such models provide an alternative mechanism for CP violation and have various interesting phenomenological features.
description: 18 pages. UTTG-22-92; LBL 33016; UCB 92/36
Palindromic sequences of the Markov spectrum
Creators: name: van-Son, Matty
Publisher: name: arXiv
Year: 2018
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11B99

description: We study the periods of Markov sequences, which are derived from the continued fraction expression of elements in the Markov spectrum. This spectrum is the set of minimal values of indefinite binary quadratic forms that are specially normalised. We show that the periods of these sequences are palindromic after a number of circular shifts, the number of shifts being given by Stern's diatomic sequence.
Multiparticle azimuthal cumulants in p+Pb collisions from a multiphase transport model
Creators: name: Nie, Mao-Wu
name: Huo, Peng
name: Jia, Jiangyong
name: Ma, Guo-Liang
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A new subevent cumulant method was recently developed, which can significantly reduce the non-flow contributions in long-range correlations for small systems compared to the standard cumulant method. In this work, we study multi-particle cumulants in $p$+Pb collisions at $\sqrt{s_{\mathrm{NN}}} = 5.02$ TeV with a multiphase transport model (AMPT), including two- and four-particle cumulants ($c_{2}\{2\}$ and $c_{2}\{4\}$) and symmetric cumulants [SC(2, 3) and SC(2, 4)]. Our numerical results show that $v_{2}\{2\}$ is consistent with the experimental data, while the magnitude of $c_{2}\{4\}$ is smaller than the experimental data, which may indicate either the collectivity is underestimated or some dynamical fluctuations are absent in the AMPT model. For the symmetric cumulants, we find that the results from the standard cumulant method are consistent with the experimental data, but those from the subevent cumulant method show different behaviors. The results indicate that the measurements from the standard cumulant method are contaminated by non-flow effects, especially when the number of produced particles is small. The subevent cumulant method is a better tool to explore the $real$ collectivity in small systems.
description: 15 pages, 6 figures; final published version
title: ADCO, Cartulaire de Cîteaux pour les possessions de Chaugey et Maison-Dieu (Fin XVe siècle), Cart. 181 (11 H 754), 165 folios, f. 0105
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/2017
name: Petot, Frédéric
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: cartulaire
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Cartulaire de Cîteaux pour les possessions de Chaugey et Maison-Dieu (Fin XVe siècle), Archives départementales de la Côte-d'Or, Cart. 181 (11 H 754), 165 folios, f. 0105, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de Cîteaux pour les possessions de Chaugey et Maison-Dieu (Fin XVe siècle), Archives départementales de la Côte-d'Or, Cart. 181 (11 H 754), 165 folios, f. 0105, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
Heterotic Parafermionic Superstring
Creators: name: Frampton, Paul H.
name: Liu, James T.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Superstrings have been postulated based on parafermionic partition functions which permit spacetime supersymmetry by generalized Jacobi identities. A comprehensive search finds new such identities. Quadrilateral anomaly cancellation gives constraints on allowed chiral fermions. Bosonic left-movers and $Z_4$ parafermionic right-movers combine in a new heterotic superstring, more constrained than the old one, yet equally applicable to physics.
description: 13 pages, IFP-440-UNC
Approximation Algorithms and New Models for Clustering and Learning
Creators: name: Pranjal  Awasthi
Publisher: name: Carnegie Mellon University
Year: 2013
Subjects: subject: 170203 Knowledge Representation and Machine Learning
subject: FOS: Psychology

description: This thesis is divided into two parts. In part one, we study the k-median and the k-means clustering problems. We take a different approach than the traditional worst case analysis models. We show that by looking at certain well motivated stable instances, one can design much better approximation algorithms for these problems. Our algorithms achieve arbitrarily good approximation factors on stable instances, something which is provably hard on worst case instances. We also study a different model for clustering which introduces limited amount of interaction with the user. Such interactive models are very popular in the context of learning algorithms but their effectiveness for clustering is not well understood. We present promising theoretical and experimental results in this direction. The second part of the thesis studies the design of provably good learning algorithms which work under adversarial noise. One of the fundamental problems in this area is to understand the learnability of the class of disjunctions of Boolean variables. We design a learning algorithm which improves on the guarantees of the previously best known result for this problem. In addition, the techniques used seem fairly general and promising to be applicable to a wider class of problems. We also propose a new model for learning with queries. This model restricts the algorithms ability to only ask certain “local” queries. We motivate the need for the model and show that one can design efficient local query algorithms for a wide class of problems.
Boundary Terms for Massive General Relativity
Creators: name: Gabadadze, Gregory
name: Pirtskhalava, David
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is well-known that the presence of a spacetime boundary requires the conventional Einstein-Hilbert (EH) action to be supplemented by the Gibbons-Hawking (GH) boundary term in order to retain the standard variational procedure. When the EH action is amended by the diffeomorphism-invariant graviton mass and potential terms, it naively appears that no further boundary terms are needed since all the new fields of massive gravity enter the action with the first derivative. However, we show that such a formulation would be inconsistent, even when the bulk action is ghost-free. The theory is well-defined only after introducing novel boundary counterterms, which dominate over the GH term in the massless limit and cancel the problematic boundary terms induced by the bulk action. The number of boundary counterterms equals the number of total derivatives one could construct in the bulk using positive powers of two derivatives of the longitudinal mode of the massive graviton.
description: 25 pages, 1 figure; version published in PRD
Approximate Representation of Unknown Objects with a Single-line Scanning Lidar and a Video Camera
Creators: name: Kwak, Ki Ho
Publisher: name: Carnegie Mellon University
Year: 2012
Subjects: subject: Computer Engineering
subject: 90699 Electrical and Electronic Engineering not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Models are useful for many computer vision tasks, such as object detection, recognition, and tracking. Computer vision tasks must handle situations where unknown objects appear and must detect and track some object which is not in the trained database. In such cases, the system must learn or, otherwise derive, descriptions of new objects. In this dissertation, we investigate creating a representation of previously unknown objects that newly appear in the scene. The representation is to create a viewpoint-invariant and scalenormalized model approximately describing an unknown object. Those properties of the representation facilitate 3D tracking of the object using 2D-to-2D image matching. The representation has both benefits of an implicit model (referred to as a view-based model) and an explicit model (referred to as a shape-based model). The object representation is created using multi-modal sensors. We illustrate the benefits of the object representation with two applications: object detection and 3D tracking. We extend the object representation to an explicit model by imposing a shape prior and combining two existing approaches.
Modeling of Supersonic Radiative Marshak waves using Simple Models and Advanced Simulations
Creators: name: Cohen, Avner P.
name: Heizler, Shay I.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We study the problem of radiative heat (Marshak) waves using advanced approximate approaches. Supersonic radiative Marshak waves that are propagating into a material are radiation dominated (i.e. hydrodynamic motion is negligible), and can be described by the Boltzmann equation. However, the exact thermal radiative transfer problem is a nontrivial one, and there still exists a need for approximations that are simple to solve. The discontinuous asymptotic $P_1$ approximation, which is a combination of the asymptotic $P_1$ and the discontinuous asymptotic diffusion approximations, was tested in previous work via theoretical benchmarks. Here we analyze a fundamental and typical experiment of a supersonic Marshak wave propagation in a low-density $\mathrm{SiO_2}$ foam cylinder, embedded in gold walls. First, we offer a simple analytic model, that grasps the main effects dominating the physical system. We find the physics governing the system to be dominated by a simple, one-dimensional effect, based on the careful observation of the different radiation temperatures that are involved in the problem. The model is completed with the main two-dimensional effect which is caused by the loss of energy to the gold walls. Second, we examine the validity of the discontinuous asymptotic $P_1$ approximation, comparing to exact simulations with good accuracy. Specifically, the heat front position as a function of the time is reproduced perfectly in compare to exact Boltzmann solutions.
description: 14 pages, 8 figures
Resonance Related Spiral Substructure in a Galactic Gaseous Disk
Creators: name: Yáñez, Miguel A.
name: Norman, Michael L.
name: Martos, Marco A.
name: Hayes, John C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We use high resolution 2D hydrodynamic simulations to study the formation of spiral substructure in the gaseous disk of a galaxy. The obtained gaseous response is driven by a self-consistent non-axisymmetric potential obtained from an imposed spiral mass distribution. We highlight the importance of ultraharmonic resonances in generating these features. The temporal evolution of the system is followed with the parallel ZEUS-MP code, and we follow the steepening of perturbations induced by the spiral potential until large-scale shocks emerge. These shocks exhibit bifurcations that protrude from the gaseous arms and continue to steepen until new shocks are formed. When the contribution from the spiral potential relative to the axisymmetric background is increased from our default value, spurs protrude from the main arms after several revolutions of the gaseous disk. Such spurs overlap on top of the aforementioned shocks. These results support the hypothesis that a complicated gaseous response can coexist with an orderly spiral potential term, in the sense that the underlying background potential can be smooth yet drive a gaseous response that is far more spatially complex.
description: 18 pages, 4 figures. Needs aastex.cls package
Local available quantum correlations for Bell Diagonal states and markovian decoherence
Creators: name: Albrecht, Hermann
name: Mundarain, Douglas
name: Caicedo, Mario
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Local available quantum correlations (LAQCs), as defined by Mundarain et al. [19], are analytically determined for Bell Diagonal states. Using the Kraus operators formalism [10], we analyze the dissipative dynamics of 2-qubit LAQCs under markovian decoherence. This is done for Werner states under the depolarizing [20] and phase damping channels [21]. Since Werner states are among those that exhibit the so called entanglement sudden death [27], the results are compared with the ones obtained for Quantum Discord [22], as analyzed by Werlang et al. [24], as well as for entanglement, i.e. Concurrence [7]. The LAQCs quantifier only vanishes asymptotically, as was shown to be the case for Quantum Discord, in spite of being lower.
description: 18 pages, 7 figures. Updated to revtx4-1. Minor format, grammar and transcription errors have been corrected. Deeper discussion comparing LAQCs quantifier with Quantum Discord is included
A Nearly Scale Invariant Spectrum of Gravitational Radiation from Global Phase Transitions
Creators: name: Jones-Smith, Katherine
name: Krauss, Lawrence M.
name: Mathur, Harsh
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Using a large N sigma model approximation we explicitly calculate the power spectrum of gravitational waves arising from a global phase transition in the early universe and we confirm that it is scale invariant, implying an observation of such a spectrum may not be a unique feature of inflation. Moreover, the predicted amplitude can be over 3 orders of magnitude larger than the naive dimensional estimate, implying that even a transition that occurs after inflation may dominate in Cosmic Microwave Background polarization or other gravity wave signals.
description: 4 pages, PRL published version
Peculiar Velocities and Microwave Background Anisotropopies from Cosmic Strings
Creators: name: Perivolaropoulos, L.
name: Vachaspati, T.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using an analytic model we show that the predictions of the cosmic string model for the peculiar velocities and the microwave background (MBR) anisotropy depend on similar combinations of string evolution parameters. Normalizing from the COBE detection of MBR anisotropy, and for certain reasonable values of string network evolution parameters, we find that the magnitude of predicted velocity flows is in good agreement with observations on small scales but is inconsistent with observations on large scales ($ > 50 h^{-1}$Mpc). The Cosmic Mach Number obtained from the cosmic string scenario is found to depend on a single network evolution parameter and is consistent with observations on scales $5h^{-1}$Mpc to $20h^{-1}$Mpc.
description: (revised version) 13 pages plus 1 figure available upon request. CfA preprint No. 3290
Long-lived Heavy Neutrinos from Higgs Decays
Creators: name: Deppisch, Frank F.
name: Liu, Wei
name: Mitra, Manimala
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We investigate the pair-production of right-handed neutrinos via the Standard Model (SM) Higgs boson in a gauged $B-L$ model. The right-handed neutrinos with a mass of few tens of GeV generating viable light neutrino masses via the seesaw mechanism naturally exhibit displaced vertices and distinctive signatures at the LHC and proposed lepton colliders. The production rate of the right-handed neutrinos depends on the mixing between the SM Higgs and the exotic Higgs associated with the $B-L$ breaking, whereas their decay length depends on the active-sterile neutrino mixing. We focus on the displaced leptonic final states arising from such a process, and analyze the sensitivity reach of the LHC and proposed lepton colliders in probing the active-sterile neutrino mixing. We show that mixing to muons as small as $V_{μN} \approx 10^{-7}$ can be probed at the LHC with 100 fb$^{-1}$ and at proposed lepton colliders with 5000 fb$^{-1}$. The future high luminosity run at LHC and the proposed MATHUSLA detector may further improve this reach by an order of magnitude.
description: 23 pages, 9 figures, matches published version
Frequency-dependent fluctuation-dissipation relations in granular gases
Creators: name: Bunin, Guy
name: Shokef, Yair
name: Levine, Dov
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The Green-Kubo relation for two models of granular gases is discussed. In the Maxwell model in any dimension, the effective temperature obtained from the Green-Kubo relation is shown to be frequency independent, and equal to the average kinetic energy, known as the granular temperature. In the second model analyzed, a mean-field granular gas, the collision rate of a particle is taken to be proportional to its velocity. The Green-Kubo relation in the high frequency limit is calculated for this model, and the effective temperature in this limit is shown to be equal to the granular temperature. This result, taken together with previous results, showing a difference between the effective temperature at zero frequency (the Einstein relation) and the granular temperature, shows that the Green-Kubo relation for granular gases is violated.
description: 6 pages
Form Factors, deformed Knizhnik-Zamolodchikov equations and finite-gap integration
Creators: name: Smirnov, Fedor A.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the limit of asymptotically free massive integrable models in which the algebra of nonlocal charges turns into affine algebra. The form factors of fields in that limit are described by KZ equations on level 0. We show the limit to be connected with finite-gap integration of classical integrable equations.
description: 32 pages, AMS TEX, Isaac Newton Institute Preprint N 192006
The origin of Mooij correlations in disordered metals
Creators: name: Ciuchi, Sergio
name: Di Sante, Domenico
name: Dobrosavljević, Vladimir
name: Fratini, Simone
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Sufficiently disordered metals display systematic deviations from the behavior predicted by semi-classical Boltzmann transport theory. Here the scattering events from impurities or thermal excitations can no longer be considered as additive independent processes, as asserted by Matthiessen's rule following from this picture. In the intermediate region between the regime of good conduction and that of insulation, one typically finds a change of sign of the temperature coefficient of resistivity (TCR), even at elevated temperature spanning ambient conditions, a phenomenology that was first identified by Mooij in 1973. Traditional weak coupling approaches to identify relevant corrections to the Boltzmann picture focused on long distance interference effects such as "weak localization", which are especially important in low dimensions (1D, 2D) and close to the zero temperature limit. Here we formulate a strong-coupling approach to tackle the interplay of strong disorder and lattice deformations (phonons) in bulk three-dimensional metals at high temperatures. We identify a polaronic mechanism of strong disorder renormalization, which describes how a lattice locally responds to the relevant impurity potential. This mechanism, which quantitatively captures the Mooij regime, is physically distinct and unrelated to Anderson localization, but realizes early seminal ideas of Anderson himself, concerning the interplay of disorder and lattice deformations.
title: ADCO, Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Cart. 32 (G 136), 745 folios, f. 0445
Creators: name: de la Côte d'Or, Archives départementales
name: CG21/F.PETOT/2012
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: cartulaire
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Archives départementales de la Côte-d'Or, Cart. 32 (G 136), 745 folios, f. 0445, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Archives départementales de la Côte-d'Or, Cart. 32 (G 136), 745 folios, f. 0445, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye Saint-Étienne de Dijon
description: Provenance: http://www.wikidata.org/entity/Q15945019
Knowledge, attitude and practice of infection control among health care providers at some Select hospitals in Mogadishu,Somalia .
Creators: name: Ibrahim, Omar Ibrahim
Publisher: name: Zenodo
Year: 2025
Subjects: Knowledge, attitude
and practice of
infection control
among health care
providers at some Select
hospitals in Mogadishu,Somalia .

description: Abstract 

The titles of this study was focused on the knowledge, attitude and practice towards infection control among health care provider at Benadir & Osman Fiqi hospitals in Somalia.

 Background: The general estimate found that more than 2.5 million HAI cases occur in developed and developing countries each year, with about 90% of infections occurring in a resource-limited environment.

 Specific objectives were: (1) To find out knowledge towards infection control among health care provider at Benadir & Osman Fiqi hospitals in Somalia, (2) To identify attitude towards infection control among health care provider & (3) To determine practice towards infection control among health care provider.

 Methodology: the study used cross-sectional as research design, while the population of the study was health care provider who were working at Benadir & Fiqi Hospital. Sample size was 70, sampling technique used purposive which mainly focused judgmental selection of the participants, Questionnaire & checklist was used as primary data collection tool while Satirical packages for Social Science (SPSS version 20.0) used as data analyzer tool which used quantitative research as major software.

Findings of the study: according to the HCAIs which are commonly seen in the hospital is that the majority of participants 16(22.9%) were answered that respiratory tract infections (RTI) is the most common in the hospital as HCAIs, while the majority of participants 32 (45.7%) were answered Hand washing properly is the single most effective method to prevent HCAIs & finally, the majority of participants 16(22.9%) were answered that they wash their hands Before meals.
Criteria for protected edge modes with $\mathbb{Z}_2$ symmetry
Creators: name: Heinrich, Chris
name: Levin, Michael
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We derive a necessary and sufficient criterion for when a two dimensional gapped many-body system with Abelian anyons and a unitary $\mathbb{Z}_2$ symmetry has a protected gapless edge mode. Our criterion is phrased in terms of edge theories --- or more specifically, chiral boson edge theories with $\mathbb{Z}_2$ symmetry --- and it applies to any bosonic or fermionic system whose boundary can be described by such an edge theory. At an operational level, our criterion takes as input a chiral boson edge theory with $\mathbb{Z}_2$ symmetry, and then produces as output a prediction as to whether this edge theory can be gapped without breaking the symmetry. Like previous work, much of our derivation involves constructing explicit perturbations that gap chiral boson edge theories. Interestingly, however, we find that the standard class of gapping perturbations --- namely cosine terms constructed from null-vectors --- is not sufficient to gap some edge theories with $\mathbb{Z}_2$ symmetry, and thus we are forced to go beyond the usual null-vector analysis to establish our results.