cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Expressive and efficient graph neural networks
Creators: name: Frasca, Fabrizio
Publisher: name: Imperial College London
Year: 2023

description: An emerging tension between expressive power, computational complexity and the retention of fundamental inductive biases characterises the design of Neural Networks for graph-structured data. In this thesis we introduce principled approaches that can strike an effective balance between the aforementioned set of desiderata. We propose and analyse methods of provable expressiveness which respect the symmetries of the objects they process, whilst featuring a computational complexity which reflects their inherent sparsity. First, we design principled neural architectures on simplicial complexes, generalisation of graphs which account for group-wise interactions. We propose to ``lift'' graphs to simplicial complexes by considering complete subgraphs, and to process them with our proposed architecture. This approach results in a local, hierarchical message-passing procedure beyond the capabilities of the node-centric paradigm of Message Passing Neural Networks on graphs (MPNNs). We broaden the application of this paradigm by considering regular cell complexes. We propose lifting graphs to these more general spaces via transformations that additionally consider structures such as simple and induced cycles. Our approach exhibits strong discriminative power and finds tractable and particularly effective application in molecular modelling tasks. Then, we propose an alternative approach which prescribes modelling graphs as bags of subgraphs from predefined selection policies. We design an architecture to process these objects in a way to respect their inherent symmetries. We show it obtains provable expressiveness even when subgraphs are selected by domain-agnostic, contained policies and are processed with ``weak'', efficient message-passing-based encoders. Last, we provide a deeper theoretical characterisation of the aforementioned paradigm, reconciling a series of contemporary works implicitly sharing this underlying `bags-of-subgraphs' approach. We perform a novel symmetry analysis which allows to derive an upper-bound on the expressive power of noteworthy subgraph methods, and to conceive a design space to guide the development of novel architectures in this overall family.
The Euler Equations in Planar Domains with Corners
Creators: name: Lacave, Christophe
name: Zlatos, Andrej
Publisher: name: arXiv
Year: 2018
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: When the velocity field is not a priori known to be globally almost Lipschitz, global uniqueness of solutions to the two-dimensional Euler equations has been established only in some special cases, and the solutions to which these results apply share the property that the diffuse part of the vorticity is constant near the points where the velocity is insufficiently regular. Assuming that the latter holds initially, the challenge is then to propagate this property along the Euler dynamic via an appropriate control of the Lagrangian trajectories. In domains with obtuse corners and sufficiently smooth elsewhere, Yudovich solutions fail to be almost Lipschitz only near these corners, and we investigate necessary and sufficient conditions for the vorticity to remain constant there. We show that if the vorticity is initially constant near the whole boundary, then it remains such forever (and global weak solutions are unique), provided no corner has angle greater than $π$. We also show that this fails in general for domains that do have such corners.
MOESM4 of Measles case, immunization coverage and its determinant factors among 12–23 month children, in Bassona Worena Woreda, Amhara Region, Ethiopia, 2018
Creators: name: Ayele Abebe
name: Tamiru Mengistu
name: Abinet Mekuria
Publisher: name: figshare
Year: 2019
Subjects: subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 4: Table S3. The knowledge of respondents, Bassona worena woreda, Ethiopia 2017 (n = 575).
title: ADCO, Cartulaire de l'abbaye de Cîteaux dit Cartulare Antiquum t.3 (2e moitié XIIIe siècle), Cart. 168 (11 H 66), f. 0047r
Creators: name: de la Côte d'Or, Archives départementales
name: CG21/F.PETOT/2010
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: 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 l'abbaye de Cîteaux dit Cartulare Antiquum t.3 (2e moitié XIIIe siècle), Archives départementales de la Côte-d'Or, Cart. 168 (11 H 66), f. 0047r, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de l'abbaye de Cîteaux dit Cartulare Antiquum t.3 (2e moitié XIIIe siècle), Archives départementales de la Côte-d'Or, Cart. 168 (11 H 66), f. 0047r, 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
title: Is Your Public Housing RAD? Public Housing Authority Capacity Building and Decision Making
Creators: name: (:Unkn) Unknown
Publisher: name: George Mason University
Year: 2020

description: The Department of Housing and Urban Development (HUD)’s Rental Assistance Demonstration (RAD) is a possible solution to address the significant capital needs in public housing. RAD has converted over 100,000 public housing units to Section 8 project-based assistance over the past eight years. While both the Obama and Trump Administrations have expanded the demonstration, there has been limited research conducted to understand the characteristics of public housing authorities (PHAs) and public housing developments that are converting under RAD. This dissertation will address this gap and uses a mixed methods approach to identify these characteristics and the potential implications for RAD’s expansion.
Structural investigations of photosystem II assembly
Creators: name: Zhao, Ziyu
Publisher: name: Imperial College London
Year: 2023

description: Photosystem II (PSII) is a multiple-subunit membrane complex found in cyanobacteria and chloroplasts, which acts as a light-driven water-plastoquinone oxidoreductase. Although the functionality and structure of PSII are well understood, its assembly and repair mechanisms are still not fully comprehended. This study employs cryogenic electron microscopy (cryo-EM) to investigate the PSII assembly and repair processes. In Chapter 3, we determined a cryo-EM structure of Ycf48/RCII/PSI assembly complex from Synechocystis sp. PCC 6803. This complex has an accessory factor protein Ycf48 bound to the luminal side of RCII, which is a sub-complex of PSII involved in the early stage of PSII assembly. A cluster of conserved arginine residues, named the Arg patch, of Ycf48 interacts with RCII, preventing premature formation of the fully functional PSII complex. In Chapter 4, we successfully purified an RCII sub-complex from Synechocystis sp. PCC 6803 with more accessary factors through Flag pull-downs. Although homogeneous RCII sub-complexes for cryo-EM analysis were not obtained, these Flag pull-downs facilitate the purification of the early-stage PSII sub-complexes. During the purification of Thermosynechoccus elongatus PSII, four fractions were obtained at the ion exchange chromatography, with the fourth fraction, named Peak 4, remaining elusive. In Chapter 5, we determined the structure of complexes from Thermosynechoccus elongatus Peak 4 PSII, which is found to be composed of active (2 active), semi-active (active + inactive) and inactive (2 inactive) PSII dimers. These dimeric Peak 4 PSII complexes could be either the final-stage assembly or early-stage disassembly PSII intermediates. In the case of assembly PSII, we proposed that the folding of the C-terminal tail of D1 induces the final stage of PSII assembly. In the other case, the oxidation of PSII residues at the donor side likely triggers the disassembly of PSII. In Chapter 6, Synechocystis sp. PCC 6803 FtsH2/FtsH3 hetero-hexamer protease, which selectively degrades damaged PSII proteins during PSII repair, was successfully purified through Flag pull-down. However, the FtsH proteins likely underwent self-degradation during purification, preventing the acquisition of a homogeneous sample for cryo-EM analysis. Overall, this study provides new insights into the mechanism of PSII assembly and highlights the power of cryo-EM in elucidating protein complex structures.
Theory for the coupling between longitudinal phonons and intrinsic Josephson oscillations in layered superconductors
Creators: name: Helm, C.
name: Preis, C.
name: Walter, C.
name: Keller, J.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In this publication a microscopic theory for the coupling of intrinsic Josephson oscillations in layered superconductors with longitudinal c-axis-phonons is developed. It is shown that the influence of lattice vibrations on the c-axis transport can be fully described by introducing an effective longitudinal dielectric function. Resonances in the I-V-characteristic appear at van Hove singularities of both acoustical and optical longitudinal phonon branches. This provides a natural explanation of the recently discovered subgap structures in the I-V-characteristic of highly anisotropic cuprate superconductors. The effect of the phonon dispersion on the damping of these resonances and the coupling of Josephson oscillations in different resistive junctions due to phonons are discussed in detail.
description: submitted to Phys. Rev. B, corrections following referee report
Controlling Spontaneous Orientation Polarization in Organic Semiconductors -- The Case of Phosphine Oxides
Creators: name: Cakaj, Albin
name: Schmid, Markus
name: Hofmann, Alexander
name: Brütting, Wolfgang
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Upon film growth by physical vapor deposition, the preferential orientation of polar organic molecules can result in a non-zero permanent dipole moment (PDM) alignment, causing a macroscopic film polarization. This effect, known as spontaneous orientation polarization (SOP), was studied in the case of different phosphine oxides. We investigate the control of SOP by molecular design and film-growth conditions. Our results show that using less polar phosphine oxides with just one phosphor-oxygen bond yields an exceptionally high degree of SOP with the so-called giant surface potential (slope) reaching more than 150mV/nm in a neat BCPO film grown at room temperature. Additionally, by altering the evaporation rate and the substrate temperature, we are able to control the SOP magnitude over a broad range from 0 to almost 300mV/nm. Diluting BCPO in a non-polar host enhances the PDM alignment only marginally, but combining temperature control together with dipolar doping can result in almost perfectly aligned molecules with more than 80% of their PDMs standing upright on the substrate on average.
The future is not always open
Creators: name: Grant, James D. E.
name: Kunzinger, Michael
name: Sämann, Clemens
name: Steinbauer, Roland
Publisher: name: arXiv
Year: 2019
Subjects: subject: Differential Geometry (math.DG)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 53C50, 83C75

description: We demonstrate the breakdown of several fundamentals of Lorentzian causality theory in low regularity. Most notably, chronological futures (defined naturally using locally Lipschitz curves) may be non-open, and may differ from the corresponding sets defined via piecewise $C^1$-curves. By refining the notion of a causal bubble from [CG:12],we characterize spacetimes for which such phenomena can occur, and also relate these to the possibility of deforming causal curves of positive length into timelike curves (push-up). The phenomena described here are, in particular, relevant for recent synthetic approaches to low regularity Lorentzian geometry where, in the absence of a differentiable structure, causality has to be based on locally Lipschitz curves.
description: Minor amendments. Final version. 17 pages, 4 figures
Understanding occupational disruption after hand injury: A scoping review
Creators: name: Derksen, Kim
name: Boyle, Paul
name: Pol, Margriet
name: Bergström, Aileen
Publisher: name: OSF Registries
Year: 2024
Subjects: subject: Occupational Therapy
subject: Medicine and Health Sciences
subject: Rehabilitation and Therapy
subject: Social and Behavioral Sciences

description: This study is a master thesis for the European Master of Occupational Therapy
Investigation into O(N) Invariant Scalar Model Using Auxiliary-Mass Method at Finite Temperature
Creators: name: Ogure, Kenzo
name: Sato, Joe
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Using auxiliary-mass method, O(N) invariant scalar model is investigated at finite temperature. This mass and an evolution equation allow us to calculate an effective potential without an infrared divergence. Second order phase transition is indicated by the effective potential. The critical exponents are determined numerically.
description: LaTex 8 pages with 3 eps figures
VALUE CHAIN ANALYSIS OF MANGO: THE CASE OF SIMADA DISTRICT
Creators: name: Meseret Tsega
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019
Subjects: Simada wereda, analysis, value chain, actors

description: The study was conducted to achieve the main objective of mango Value chain in the study area. About 52 respondents of mango value chain actors were selected randomly from four keeled administration of Simada woreda. The study employed both qualitative and quantitative type of data. Primary data were collected by close ended and open Questionnaires, personal interview; focus group discussion and key informant interview and the secondary data were taken from different written. The collected data were analyzed by using stasticial tools like mean, standard devation, frequency, tables and percentage methods. The study has indicated that direct actors along mango value chain include producers, wholesalers, retailers and consumers and also indirect actors such as extension service providers, credit and saving service. From the research I summarize 72.7% of mango was produced by males and some of the respondents were females (27.3%). In the study area household heads more tend to be males and also most of the practicing in production of mango was by males. From this I recommend female should participate in mango production and the government and other concerned body should play a great roll in order to improve quality of mango production, input supply and income in the study area.
Yttrium-substituted Mg-Zn ferrites: correlation of physical properties with Yttrium content
Creators: name: Ali, M. A.
name: Khan, M. N. I.
name: Chowdhury, F. -U. -Z.
name: Hossain, M. M.
name: Hossain, A. K. M. Akhter
name: Rashid, R.
name: Nahar, A.
name: Hoque, S. M.
name: Matin, M. A.
name: Uddin, M. M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Yttrium (Y) substituted Mg Zn ferrites with the compositions of Mg0.5Zn0.5YxFe2 xO4 have been synthesized by conventional standard ceramic technique. The effect of Y3+ substitution on the structural, electrical, dielectric and magnetic properties of Mg Zn ferrites has been studied.
description: 25 pages, 8 figure
MOESM3 of Measles case, immunization coverage and its determinant factors among 12–23 month children, in Bassona Worena Woreda, Amhara Region, Ethiopia, 2018
Creators: name: Ayele Abebe
name: Tamiru Mengistu
name: Abinet Mekuria
Publisher: name: figshare
Year: 2019
Subjects: subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 3: Table S2. Child related factor of respondents, Bassona worena woreda, North Shoa zone, Ethiopia 2017 (n = 575).
SRoll2: an improved mapmaking approach to reduce large-scale systematic effects in the Planck High Frequency Instrument legacy maps
Creators: name: Delouis, J. -M.
name: Pagano, L.
name: Mottet, S.
name: Puget, J. -L.
name: Vibert, L.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: This paper describes an improved mapmaking approach with respect to the one used for the Planck High Frequency Instrument 2018 Legacy release. The algorithm SRoll2 better corrects the known instrumental effects that still affected mostly the polarized large-angular-scale data by distorting the signal, and/or leaving residuals observable in null tests. The main systematic effect is the nonlinear response of the onboard analog-to-digital convertors that was cleaned in the Planck HFI Legacy release as an empirical time-varying linear detector chain response which is the first-order effect. The SRoll2 method fits the model parameters for higher-order effects and corrects the full distortion of the signal. The model parameters are fitted using the redundancies in the data by iteratively comparing the data and a model. The polarization efficiency uncertainties and associated errors have also been corrected based on the redundancies in the data and their residual levels characterized with simulations. This paper demonstrates the effectiveness of the method using end-to-end simulations, and provides a measure of the systematic effect residuals that now fall well below the detector noise level. Finally, this paper describes and characterizes the resulting SRoll2 frequency maps using the associated simulations that are} released to the community at http://sroll20.ias.u-psud.fr.
Superconductive proximity effect in interacting disordered conductors
Creators: name: Skvortsov, M. A.
name: Larkin, A. I.
name: Feigel'man, M. V.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a general theory of the superconductive proximity effect in disordered normal--superconducting (N-S) structures, based on the recently developed Keldysh action approach. In the case of the absence of interaction in the normal conductor we reproduce known results for the Andreev conductance G_A at arbitrary relation between the interface resistance R_T and the diffusive resistance R_D. In two-dimensional N-S systems, electron-electron interaction in the Cooper channel of normal conductor is shown to strongly affect the value of G_A as well as its dependence on temperature, voltage and magnetic field. In particular, an unusual maximum of G_A as a function of temperature and/or magnetic field is predicted for some range of parameters R_D and R_T. The Keldysh action approach makes it possible to calculate the full statistics of charge transfer in such structures. As an application of this method, we calculate the noise power of an N-S contact as a function of voltage, temperature, magnetic field and frequency for arbitrary Cooper repulsion in the normal metal and arbitrary values of the ratio R_D/R_T.
description: RevTeX, 28 pages, 18 PostScript figures; added and updated references
title: ADCO, Cartulaire du prieuré Notre-Dame de Bonvaux, dépendant du Val-des-Ecoliers (XVe siècle), Dijon, Cart. 228 (27 H), 68 folios, 109 actes (1211-1356), f. 0100
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/2011
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 du prieuré Notre-Dame de Bonvaux, dépendant du Val-des-Ecoliers (XVe siècle), Dijon, Archives départementales de la Côte-d'Or, Cart. 228 (27 H), 68 folios, 109 actes (1211-1356). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire du prieuré Notre-Dame de Bonvaux, dépendant du Val-des-Ecoliers (XVe siècle), Dijon, Archives départementales de la Côte-d'Or, Cart. 228 (27 H), 68 folios, 109 actes (1211-1356), f. 0100, in Projet CBMA - Corpus Burgundiae Medii Aevi \[Ressource en ligne\], https:// manuscrits.cbma-project.eu/
description: Provenance: Dijon
description: Provenance: http://www.wikidata.org/entity/Q7003
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb15250518p
description: Provenance: http://www.idref.fr/02643413X/id
description: Provenance: https://www.geonames.org/6453767
Additional file 1: of Health status of children left behind in rural areas of Sichuan Province of China: a cross-sectional study
Creators: name: Tang, Daisheng
name: Choi, Weng
name: Deng, Liyuan
name: Bian, Ying
name: Hu, Hao
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Survey questionnaire. (DOCX 23 kb)
On the Microscopic Origin of Cholesteric Pitch
Creators: name: Harris, A. B.
name: Kamien, Randall D.
name: Lubensky, T. C.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Chemical Physics (physics.chem-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present a microscopic analysis of the instability of the nematic phase to chirality when molecular chirality is introduced perturbatively. We show that previously neglected short-range biaxial correlations play a crucial role in determining the cholesteric pitch. We propose an order parameter which quantifies the chirality of a molecule.
description: RevTeX 3.0, 4 pages, one included eps figure. Published version
Hyperfine Splitting in Muonium: Accuracy of the Theoretical Prediction
Creators: name: Eides, Michael I.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: In the last twenty years, the theory of hyperfine splitting in muonium developed without any experimental input. Finally, this situation is changing and a new experiment on measuring hyperfine splitting in muonium is now in progress at J-PARC. The goal of the MuSEUM experiment is to improve by an order of magnitude experimental accuracy of the hyperfine splitting and muon-electron mass ratio. Uncertainty of the theoretical prediction for hyperfine splitting will be crucial for comparison between the forthcoming experimental data and the theory in search of a possible new physics. In the current literature estimates of the error bars of the theoretical prediction differ roughly by a factor of two. We explain the origin of this discrepancy and obtain the theoretical prediction for the muonium hyperfine splitting $Δν^{th}_{\scriptscriptstyle HFS}(Mu)=4~463~302~872~(515)~\mbox{Hz},\; δ=1.2\times 10^{-7}$.
description: 9 pages; v.2: Minor improvements and corrections, acknowledgments updated, conclusions unchanged; v.3: minor editorial changes, version published in Phys. Lett. B
Research Infrastructure for science technology and innovation studies: The experiment of RISIS
Creators: name: Reale, Emanuela
Publisher: name: Zenodo
Year: 2019
Subjects: methodological innovation
knowledge production
research infrastructures

description: The paper discusses changes produced by the emergence of research infrastructures at European level, which affect the modes of knowledge production and the role of research organizations. The paper is based on evidences derived from the work done in the last five years in one Research infrastructure -RISIS, dealing with studies on Science, Technology and Innovation Policy (STI) funded under the EUFP7. We assume that RISIS contribute to methodological innovation and improvement of data collection and use. However, in line with what happen for other research infrastructures, it poses the challenge of new relationships between decision-makers and research communities and within research organizations based on attention spaces and organizational resources, which are likely to produce different effects.
A rich man's derivation of scaling laws for the Kondo model
Creators: name: Tarasevych, Dmytro
name: Krieg, Jan
name: Kopietz, Peter
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We show how the one-loop "poor man's scaling" equations for the Kondo model with arbitrary impurity spin can be obtained within the framework of the functional renormalization group approach for quantum spin systems recently developed by Krieg and Kopietz [arXiv:1807.02524]. We argue that our method supersedes the "poor man's scaling" approach and can also be used to study the strong coupling regime of the Kondo model.
description: 7 pages, 2 figures; added references, corrected typos
title: Digital Campus Podcast - Episode 93 - A JSTOR and Jerry Springer Thanksgiving
Creators: name: Roy Rosenzweig Center For History And New Media, /
Publisher: name: George Mason University
Year: 2012
Subjects: subject: BuddyPress
subject: Conferences
subject: JSTOR
subject: MOOCs
subject: Open source
subject: Social networking
subject: Unconferences
subject: Wikipedia
subject: WordPress

description: Originally published by the Center for History and New Media through the Digital Campus podcast (http://digitalcampus.tv). This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 (http://creativecommons.org/licenses/by-nc-sa/4.0/).
description: What we do is news, of course (of course!), and so is what our friends do, and so is what “Friends of the Court” do. In the warm and friendly spirit of Thanksgiving, then, the four regular Digital Campus commentators (Mills, Dan, Tom, and Amanda) focus mainly on what you might call local news. First we address the decidedly non-local implications of JSTOR’s announcement that it will provide free access to a small community of Wikipedia editors, but then we get down into the news from closer to home. We’re pleased at the release of “Commons in a Box,” a turnkey open source blogging and social networking package built on BuddyPress by our buddies at CUNY Academic Commons, and we’re similarly pleased about the implementation of similar BuddyPress technology on the website for THATCamp, The Humanities and Technology Camp. We then hear reports from pundit Mills and troublemaker Dan about the Future of Higher Education Conference that recently took place at GMU, where passions ran as high as on your average daytime talk show. Dan ends by telling us all bit about a recent contribution he made to the question of whether the Authors’ Guild can be said to speak for academic authors, and then we adjourn, headed over the river and through the woods.
Neutrino Oscillations in the Dualized Standard Model
Creators: name: Bordes, J
name: Chan, HM
name: Pfaudler, J.
name: Tsou, ST
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A method developed from the Dualized Standard Model for calculating the quark CKM matrix and masses is applied to the parallel problem in neutrino oscillations. Taking the parameters determined from quarks and the masses of two neutrinos: $m_3^2 \sim 10^{-2} - 10^{-3} eV^2$ suggested by atmospheric neutrino data, and $m_2^2 \sim 10^{-10} eV^2$ suggested by the long wave-length oscillation (LWO) solution of the solar neutrino problem, one obtains from a parameter-free calculation all the mixing angles in reasonable agreement with existing experiment. However, the scheme is found not to accommodate comfortably the mass values $m_2^2 \sim 10^{-5} eV^2$ suggested by the MSW solution for solar neutrinos.
description: 16 pages, Latex, 5 figures using eps
$Z_c(4430)$ and $Z_c(4200)$ as triangle singularities
Creators: name: Nakamura, S. X.
name: Tsushima, K.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: $Z_c(4430)$ discovered by the Belle and confirmed by the LHCb in $\bar{B}^0\toψ(2S)K^-π^+$ is generally considered to be a charged charmonium-like state that includes minimally two quarks and two antiquarks. $Z_c(4200)$ found in $\bar{B}^0\to J/ψK^-π^+$ by the Belle is also a good candidate of a charged charmonium-like state. We demonstrate that kinematical singularities in triangle loop diagrams induce a resonance-like behavior that can consistently explain the properties (mass, width, and Argand plot) of $Z_c(4430)$ and $Z_c(4200)$ from the experimental analyses. The triangle diagrams include only experimentally well-established hadrons. Applying this idea to $Λ_b^0\to J/ψpπ^-$, we also identify triangle singularities that behave like $Z_c(4200)$, but no triangle diagram is available for $Z_c(4430)$. This is consistent with the LHCb's finding that their description of the $Λ_b^0\to J/ψpπ^-$ data is significantly improved by including a $Z_c(4200)$ contribution while $Z_c(4430)$ seems to hardly contribute. Even though the proposed mechanisms have uncertainty in the absolute strengths which are currently difficult to estimate, they are certainly a compelling alternative to tetraquark-based interpretations of $Z_c(4430)$ and $Z_c(4200)$.
description: 6 pages, 5 figures; published version; one figure on the cutoff-dependence added
MOESM1 of High time resolution and high signal-to-noise monitoring of the bacterial growth kinetics in the presence of plasmonic nanoparticles
Creators: name: Vukomanovic, Marija
name: Torrents, Eduard
Publisher: name: figshare
Year: 2019
Subjects: subject: Biophysics
subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Additional file 1. Figure S1. Presto Blue monitoring of the influence of HApAu(arg) NPs to the growth of P. aeruginosa: optical density (at 600 nm) and fluorescence signal (at 560/590 nm) for the cases with and without bacteria. Figure S2. Presto Blue monitoring of the influence of HApAu(arg) NPs to the growth of S. aureus: optical density (at 600 nm) and fluorescence signal (at 560/590 nm) for the cases with and without bacteria. Figure S3. Comparison of the influence of Au(arg) (a) and HAp (b) NPs to the growth kinetics of P. aeruginosa: absorption (at 600 nm) and fluorescence (at 560/590 nm) signal, respectively. Figure S4. Comparison of the influence of Au(arg) (a) and HAp (b) NPs to the growth kinetics of S. aureus: optical density (at 600 nm) and fluorescence signal (at 560/590 nm), respectively.
Open-source AI Assistant for Cooperative Multi-agent Systems for Lunar Prospecting Missions
Creators: name: KAKISH, Z. M.
name: RODRAGUEZ-LERA, F.
name: BISCHEL, D.
name: MOSQUERA, A.
name: BOUMGHAR, R.
name: KACZMAREK, S.
name: SEABROOK, T.
name: METZGER, P.
name: GALANCHE, J.L.
Publisher: name: Proceedings of the 8th European Conference for Aeronautics and Space Sciences. Madrid, Spain, 1-4 july 2019
Year: 2019
Subjects: ROBOTICS
AI ARTIFICIAL INTELLIGENCE
AUTONOMOUS NAVIGATION
AUTOMATION

description: Mission planning for space prospecting missions is a complex undertaking that involves several phases, variables, and systems. MARMOT, Multi-Agent Resource Mission Operations Tools, is an extensible, open-source tool that allows operators to expand and improve current functionalities and automation capabilities of mission planning systems for extra-terrestrial operation by aiming to reduce the exhaustive mental load accumulated by mission operators. This paper presents the first iteration of the tool that provides homogeneous and heterogeneous multi-agent global trajectory planning and optimization suggestions for different tasks and goals in a Lunar environment. The resulting tool leverages collaborative action plans and optimization strategies for enhancing in-situ resource exploitation and discovery on the Moon.
Scaling of a large-scale simulation of synchronous slow-wave and asynchronous awake-like activity of a cortical model with long-range interconnections
Creators: name: Pastorelli, Elena
name: Capone, Cristiano
name: Simula, Francesco
name: Sanchez-Vives, Maria V.
name: Del Giudice, Paolo
name: Mattia, Maurizio
name: Paolucci, Pier Stanislao
Publisher: name: arXiv
Year: 2019
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: Cortical synapse organization supports a range of dynamic states on multiple spatial and temporal scales, from synchronous slow wave activity (SWA), characteristic of deep sleep or anesthesia, to fluctuating, asynchronous activity during wakefulness (AW). Such dynamic diversity poses a challenge for producing efficient large-scale simulations that embody realistic metaphors of short- and long-range synaptic connectivity. In fact, during SWA and AW different spatial extents of the cortical tissue are active in a given timespan and at different firing rates, which implies a wide variety of loads of local computation and communication. A balanced evaluation of simulation performance and robustness should therefore include tests of a variety of cortical dynamic states. Here, we demonstrate performance scaling of our proprietary Distributed and Plastic Spiking Neural Networks (DPSNN) simulation engine in both SWA and AW for bidimensional grids of neural populations, which reflects the modular organization of the cortex. We explored networks up to 192x192 modules, each composed of 1250 integrate-and-fire neurons with spike-frequency adaptation, and exponentially decaying inter-modular synaptic connectivity with varying spatial decay constant. For the largest networks the total number of synapses was over 70 billion. The execution platform included up to 64 dual-socket nodes, each socket mounting 8 Intel Xeon Haswell processor cores @ 2.40GHz clock rates. Network initialization time, memory usage, and execution time showed good scaling performances from 1 to 1024 processes, implemented using the standard Message Passing Interface (MPI) protocol. We achieved simulation speeds of between 2.3x10^9 and 4.1x10^9 synaptic events per second for both cortical states in the explored range of inter-modular interconnections.
description: 22 pages, 9 figures, 4 tables
On the Existence of Steady-State Solutions to the Equations Governing Fluid Flow in Networks
Creators: name: Srinivasan, Shriram
name: Panda, Nishant
name: Sundar, Kaarthik
Publisher: name: arXiv
Year: 2023
Subjects: subject: Numerical Analysis (math.NA)
subject: Systems and Control (eess.SY)
subject: FOS: Mathematics
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The steady-state solution of fluid flow in pipeline infrastructure networks driven by junction/node potentials is a crucial ingredient in various decision-support tools for system design and operation. While the nonlinear system is known to have a unique solution (when one exists), the absence of a definite result on the existence of solutions hobbles the development of computational algorithms, for it is not possible to distinguish between algorithm failure and non-existence of a solution. In this letter, we show that for any fluid whose equation of state is a scaled monomial, a unique solution exists for such nonlinear systems if the term solution is interpreted in terms of potentials and flows rather than pressures and flows. However, for gases following the CNGA equation of state, while the question of existence remains open, we construct an alternative system that always has a unique solution and show that the solution to this system is a good approximant of the true solution. The existence result for flow of natural gas in networks also applies to other fluid flow networks such as water distribution networks or networks that transport carbon dioxide in carbon capture and sequestration. Most importantly, our result enables correct diagnosis of algorithmic failure, problem stiffness, and non-convergence in computational algorithms.
description: 6 pages, 3 figures
Quantum dynamics of two-dimensional vortex pairs with arbitrary total vorticity
Creators: name: Penna, V.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Quantum dynamics of a vortex pair is investigated by considering the pair Hamiltonian within various, unequivalent algebraic frameworks. First the vortex pair spectrum is constructed in the standard contest of the e(2)-like dynamical symmetry and its degeneracy is thoroughly examined. Then the Berry phase phenomenon is studied through an su(1,1) realization of the pair Hamiltonian when its parameters are assumed to be time-dependent, whereas the Feynman- Onsager quantization conditions are recovered by means of symmetry arguments within a third approach based on a magneticlike description of the vortex pair. Finally, it is shown how recasting the dynamical algebra in terms of two-particle realization of both su(2) and su(1,1) provides the correct approach for the quantization of the model Hamiltonian accounting for the pair scattering from a disklike obstacle.
description: 15 pages
Magnetic tidal Love numbers clarified
Creators: name: Pani, Paolo
name: Gualtieri, Leonardo
name: Abdelsalhin, Tiziano
name: Forteza, Xisco Jiménez
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In this brief note, we clarify certain aspects related to the magnetic (i.e., odd parity or axial) tidal Love numbers of a star in general relativity. Magnetic tidal deformations of a compact star had been computed in 2009 independently by Damour and Nagar and by Binnington and Poisson. More recently, Landry and Poisson showed that the magnetic tidal Love numbers depend on the assumptions made on the fluid, in particular they are different (and of opposite sign) if the fluid is assumed to be in static equilibrium or if it is irrotational. We show that the zero-frequency limit of the Regge-Wheeler equation forces the fluid to be irrotational. For this reason, the results of Damour and Nagar are equivalent to those of Landry and Poisson for an irrotational fluid, and are expected to be the most appropriate to describe realistic configurations.
description: v2: 4 pages, one extra equation. Matches the PRD version
Supplement to Psychological interventions for early-phase schizophrenia: protocol for a systematic review and network meta-analysis
Creators: name: Feber, Lena
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 320221
subject: Psychiatry (incl. psychotherapy)

description: Additional File 1 is the Prisma-P checklistAdditional File 2 is the search strategy
Communication of Hospitalized Pediatric Oncology Patients with the Nursing Team: Integrative Review Protocol
Creators: name: Prates, Pedro
name: Correa Júnior, Antonio Jorge S.
name: Mara da Silva Russo, Tatiana
name: PARAIZO-HORVATH, CAMILA MARIA SILVA
name: Teles, André Aparecido da Silva
name: Sonobe, Helena Megumi
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 420503
subject: Community and primary care
classificationCode: 420505
subject: Nursing workforce

description: Objective: To map and understand the perceptions of hospitalized pediatric oncology patients regarding their communication with the nursing team during the hospitalization period, through perceived empathy, clarity of information and effectiveness of communication. Methods: This is an integrative literature review, carried out in six stages and conducted by the PICo research strategy. The searches were carried out in the LILACS, CINAHL, Scopus, Web of Science and PUBMED databases, using inclusion and exclusion criteria, with a time frame from 2018 to 2024. The sample data were used to identify the study, methodological characteristics , evaluation of methodological rigor and results.
Uncovering the spin ordering in magic-angle graphene via edge state equilibration
Creators: name: Hoke, Jesse C.
name: Li, Yifan
name: May-Mann, Julian
name: Watanabe, Kenji
name: Taniguchi, Takashi
name: Bradlyn, Barry
name: Hughes, Taylor L.
name: Feldman, Benjamin E.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Determining the symmetry breaking order of correlated quantum phases is essential for understanding the microscopic interactions in their host systems. The flat bands in magic angle twisted bilayer graphene (MATBG) provide an especially rich arena to investigate such interaction-driven ground states, and while progress has been made in identifying the correlated insulators and their excitations at commensurate moire filling factors, the spin-valley polarizations of the topological states that emerge at high magnetic field remain unknown. Here we introduce a new technique based on twist-decoupled van der Waals layers that enables measurements of their electronic band structure and, by studying the backscattering between counter-propagating edge states, determination of relative spin polarization of the their edge modes. Applying this method to twist-decoupled MATBG and monolayer graphene, we find that the broken-symmetry quantum Hall states that extend from the charge neutrality point in MATBG are spin-unpolarized at even integer filling factors. The measurements also indicate that the correlated Chern insulator emerging from half filling of the flat valence band is spin-unpolarized, but suggest that its conduction band counterpart may be spin-polarized. Our results constrain models of spin-valley ordering in MATBG and establish a versatile approach to study the electronic properties of van der Waals systems.
Order-disorder transition in nanoscopic semiconductor quantum rings
Creators: name: Borrmann, Peter
name: Harting, Jens
Publisher: name: arXiv
Year: 2000
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Using the path integral Monte Carlo technique we show that semiconductor quantum rings with up to six electrons exhibit a temperature, ring diameter, and particle number dependent transition between spin ordered and disordered Wigner crystals. Due to the small number of particles the transition extends over a broad temperature range and is clearly identifiable from the electron pair correlation functions.
description: 4 pages, 5 figures, For recent information on physics of small systems see http://www.smallsystems.de
Optimal barrier subdivision for Kramers' escape rate
Creators: name: Bekele, Mulugeta
name: Ananthakrishna, G.
name: Kumar, N.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We examine the effect of subdividing the potential barrier along the reaction coordinate on Kramers' escape rate for a model potential. Using the known supersymmetric potential approach, we show the existence of an optimal number of subdivisions that maximises the rate.
description: 8 pages, 3 figures, To appear in Pramana - J. Phys, India
Understanding the $η_cρ$ decay mode of $Z_c^{(\prime)}$ via the triangle loop mechanism
Creators: name: Xiao, Cheng-Jian
name: Chen, Dian-Yong
name: Dong, Yu-Bing
name: Zuo, Wei
name: Matsuki, Takayuki
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Recently, the BESIII Collaboration reported a new measurement of the $η_c ρ$ decay mode of $Z_c^{(\prime)}$, which motivated us to study the inner structure of $Z_c^{(\prime)}$ via investigating the hidden charm decays of these two $Z_c$ states. We consider the {triangle loop mechanism} contribution in the hidden charm decays of $Z_c^{(\prime)}$. Our estimations indicate that the triangle loop mechanism plays an important role in the decays of the $Z_c^{(\prime)}$, where our results are in agreement with the experimental observations in a reasonable parameter range. Furthermore, we point out that the $Z_c^{(\prime)}$ can be interpreted as the hadronic molecules, while the tetraquark scenario is less favored.
title: Paper: "A Variety of Problemmatiques," January 2009
Creators: name: Warfield, John
Publisher: name: George Mason University
Year: 2009
Subjects: subject: Problematique
subject: Warfield, John N.
subject: Nominal Group Technique (NGT)
subject: Interpretive Structural Modeling (ISM)
subject: Peirce, Charles Sanders
subject: Complexity
subject: Group Abduction
subject: Work Program of Complexity (WPOC)
subject: Augmented Interactive Management (AIM).
subject: School of Public Policy (SPP)
subject: Ford Motor Company
subject: Staley, Scott
subject: United States Department of Defense
subject: Broome, Ben

description: Manuscript: typescript with tables and figures, 40 pgs. Original is PDF (7.22 Mb). 8.5" x 11" (21.6 cm x 29.7 cm)
description: A problematique is a graphical portrayal, constructed to rigorous specifications, of a particular aspect of complexity which arises in a problematic situation. It is produced using the Nominal Group Technique (NGT) and Interpretive Structural Modeling (ISM). This paper discusses the two different types of problematiques, highlights the frequency of cycles, the usefulness of problematiques when approaching complex problems, and the overall inadequacy of prose when it comes to describing complexity. John N. Warfield 99.7