cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Model-independent Probe of anomalous heavy neutral Higgs bosons at the LHC
Creators: name: Kuang, Yu-Ping
name: Ren, Hong-Yu
name: Xia, Ling-Hao
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We first formulate, in the framework of effective Lagrangian, the general form of the effective interactions of the lightest Higgs boson h and a heavier neutral Higgs boson H in a multi-Higgs system taking account of Higgs mixing effect. We regard h as the discovered Higgs boson which has been shown to be consistent with the standard model (SM) Higgs boson. The obtained effective interactions contain extra parameters reflecting the Higgs mixing effect. Next, We study the constraints on the anomalous coupling constants of H from both the requirement of the unitarity of the S matrix and the exclusion bounds on the SM Higgs boson obtained from the experimental data at the 7--8 TeV LHC. From this we obtain the available range of the anomalous coupling constants of H, with which H is not excluded by the yet known theoretical and experimental constraints. We then study the signatures of H at the 14 TeV LHC. In this paper, we suggest taking weak-boson scattering and pp to VH* to VVV as sensitive processes for probing H model independently at the 14 TeV LHC. We take several examples with the anomalous HVV coupling constants in the available ranges to do the numerical study. a full tree-level calculation at the hadron level is given with signals and backgrounds carefully calculated. We impose a series of proper kinematic cuts to effectively suppress the backgrounds. It is shown that, in both the VV scattering and the pp to VH* to VVV processes, H boson can be discovered from the invariant mass distributions of the final state particles with reasonable integrated luminosity. Especially, in the pp to VH* to VVV process, the invariant mass distribution of the final state jets can show a clear resonance peak of H. Finally, we propose several physical observables from which the values of the anomalous coupling constants f_W and f_{WW} can be measured experimentally.
description: revtex4, 25pages, with 21 eps files for 21 figures. Tp appear in Phys. Rev. D 90 (2014)
Contexte de la transition alimentaire et nutritionnelle dans la région MENA
Creators: name: El Ati, Jalila
name: Martin-Prével, Yves
name: Traissac, Pierre
name: Aounallah-Skhiri, Hajer
name: Ben Gharbia, Houda
name: Sassi, Sonia
name: Trabelsi, Tarek
Publisher: name: Zenodo
Year: 2022

description: "Contexte de la transition alimentaire et nutritionnelle dans la région MENA" Présentation de Jalila El Ati lors du séminaire de lancement de la JEAI TANIT, 9 juin 2022, Hôtel Mechtel, Tunis, Tunisie
Supplemental Methods and Results from Coevolution of relative brain size and life expectancy in parrots
Creators: name: Smeele, Simeon Q.
name: Conde, Dalia A.
name: Baudisch, Annette
name: Bruslund, Simon
name: Iwaniuk, Andrew
name: Staerk, Johanna
name: Wright, Timothy F.
name: Young, Anna M.
name: McElreath, Mary Brooke
name: Aplin, Lucy
Publisher: name: The Royal Society
Year: 2022
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 170299 Cognitive Science not elsewhere classified
subject: FOS: Psychology

description: This file contains additional details of the methods used. It also contains additional figures.
REPROGRAMMING OF ADULT HUMAN FIBROBLASTS FROM HEALTHY INDIVIDUALS AND PARKINSON´S DISEASE PATIENTS
Creators: name: Shrigley, Shelby
name: Pereira, Maria
name: Barker, Roger A
name: Drouin-Ouellet, Janelle
name: Parmar, Malin
Publisher: name: Zenodo
Year: 2018

description: Parkinson’s disease (PD) is a neurodegenerative disease resulting from the progressive loss of dopaminergic cells within the nigrostriatal system. Previous work has shown that it is possible to generate dopaminergic (DA) neurons from fetal tissue and embryonic stem cells and, when transplanted into animal models of PD, these cells can integrate and provide improvement in motor symptoms. However, in order to translate these into clinical therapies there are a number of logistical and ethical concerns with using cells derived from embryonic sources. With new reprogramming technologies we can now generate DA neurons from somatic cell sources, which also allows for the possibility to use patient specific cells or matched donors. The main purpose of this project is to develop robust protocols for the generation of DA neurons from adult human fibroblasts, from both healthy individuals and PD patients. We will reprogram cells directly into induced neurons (iNs) and also via a pluripotent stem cell (iPSC) intermediate and investigate if there are any differences in gene expression, morphology or phenotype between the DA neurons generated from healthy, genetic PD, and sporadic PD donors. The results will provide a more robust protocol for the generation of reprogrammed DA neurons from adult donors and will help to pave the way for future research assessing their potential for brain repair and disease modelling.
THE INTERACTION BETWEEN NONCONFORMISM AND REALITY
Creators: name: Masliakova, A.
Publisher: name: Вестник науки
Year: 2023
Subjects: NONCONFORMISM
MODERN ART
DIALOG
DESTRUCTION
PRESERVATION

description: At all times there were scientists and artists whose work was not recognized by the general public. And this article is dedicated to the consideration of this very phenomenon.
Small clusters Renormalization Group in 2D and 3D Ising and BEG models with ferro, antiferro and quenched disordered magnetic interactions
Creators: name: Antenucci, Fabrizio
name: Crisanti, Andrea
name: Leuzzi, Luca
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The Ising and BEG models critical behavior is analyzed in 2D and 3D by means of a renormalization group scheme on small clusters made of a few lattice cells. Different kinds of cells are proposed for both ordered and disordered model cases. In particular, cells preserving a possible antiferromagnetic ordering under decimation allow for the determination of the Néel critical point and its scaling indices. These also provide more reliable estimates of the Curie fixed point than those obtained using cells preserving only the ferromagnetic ordering. In all studied dimensions, the present procedure does not yield the strong disorder critical point corresponding to the transition to the spin-glass phase. This limitation is thoroughly analyzed and motivated.
description: 14 pages, 12 figures
Programme du séminaire de lancement de la JEAI TANIT
Creators: name: JEAI-TANIT
Publisher: name: Zenodo
Year: 2022

description: Programme du séminaire de lancement de la JEAI TANIT - 9 juin 2022, Hôtel Mechtel, Tunis, Tunisie INSP (Institut National de Santé), Tunisie INNTA (Institut National de Nutrition et de Technologie Alimentaire), Tunisie INAT (Institut National Agronomique), Tunisie ISSHT (Institut Supérieur des Sciences Humaines de Tunis), Tunisie Université El Manar, Faculté de Médecine de Tunis UMR MoISA, IRD (Institut de Recherche pour le Développement), France
Persistent Superconductor Currents in Holographic Lattices
Creators: name: Iizuka, Norihiro
name: Ishibashi, Akihiro
name: Maeda, Kengo
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider a persistent superconductor current along the direction with no translational symmetry in a holographic gravity model. Incorporating a lattice structure into the model, we numerically construct novel solutions of hairy charged stationary black brane with momentum/rotation along the latticed direction. The lattice structure prevents the horizon from rotating, and the total momentum is only carried by matter fields outside the black brane horizon. This is consistent with the black hole rigidity theorem, and suggests that in dual field theory with lattices, superconductor currents are made up by "composite" fields, rather than "fractionalized" degrees of freedom. We also show that our solutions are consistent with the superfluid hydrodynamics.
description: 5 pages, 2 figures. v2: new section added, showing many new numerical solutions, their parameter relation analysis, and comparison with boundary superfluid hydrodynamics. Minor improvements, reference added
Research Software Engineering in the Cloud?
Creators: name: Schmidt, Peter
Publisher: name: Zenodo
Year: 2023

description: The RSE team at UCL is often faced with requests for applications, which require a more complex software infrastructure than stand-alone research applications. For example, web or mobile based applications typically rely on data processing and storage facilities and other services, often called “backend solutions”. Although may institutions provide the infrastructure for such backend services (on premise), the actual implementation and running of them may require substantial effort. Therefore, some institutions have engaged with commercial cloud providers to offer alternative solutions. However, as cloud services expand and become more complex, many engineers and researchers are faced with a steep learning curve. At UCL, we have considered how we can mitigate this and provide sufficient guidance to ease the process of designing and deploying cloud based apps. This presentation discusses two aspects of this work. Firstly, what are the use cases for cloud based applications? And secondly, what technical help and guidance can RSEs provide to help research team. In particular, to explore how research teams could benefit from “template” solutions.
Linear programming over exponent pairs
Creators: name: Lelechenko, Andrew V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Number Theory (math.NT)
subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: G.1.6; F.2.1
subject: 90C05, 11Y16, 11L07, 11N37

description: We consider the problem of the computation of $\inf_p θp$ over the set of exponent pairs $P \ni p$ under linear constraints for a certain class of objective functions $θ$. An effective algorithm is presented. The output of the algorithm leads to the improvement and establishing new estimates in the various divisor problems in the analytic number theory.
description: 11 pages, 1 figure
Local Tertiary Structure Probing of Ribonucleoprotein Particles by Nuclease Fusion Proteins
Creators: name: Ohmayer, Uli
name: Perez-Fernandez, Jorge
name: Hierlmeier, Thomas
name: Pöll, Gisela
name: Williams, Lydia
name: Griesenbeck, Joachim
name: Tschochner, Herbert
name: Milkereit, Philipp
Publisher: name: Universität Regensburg
Year: 2012
Subjects: subject: 570 Biowissenschaften, Biologie
subject: 610 Medizin

description: Analyses of the conformational dynamics of the numerous cellular ribonucleoprotein particles (RNP) significantly contribute to the understanding of their modes of action. Here, we tested whether ribonuclease fusion proteins incorporated into RNPs can be used as molecular probes to characterize the local RNA environment of these proteins. Fusion proteins of micrococcal nuclease (MNase) with ribosomal proteins were expressed in S. cerevisae to produce in vivo recombinant ribosomes which have a ribonuclease tethered to specific sites. Activation of the MNase activity by addition of calcium led to specific rRNA cleavage events in proximity to the ribosomal binding sites of the fusion proteins. The dimensions of the RNP environment which could be probed by this approach varied with the size of the linker sequence between MNase and the fused protein. Advantages and disadvantages of the use of MNase fusion proteins for local tertiary structure probing of RNPs as well as alternative applications for this type of approach in RNP research are discussed.
$κ$-Deformations and Extended $κ$-Minkowski Spacetimes
Creators: name: Borowiec, Andrzej
name: Pachol, Anna
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We extend our previous study of Hopf-algebraic $κ$-deformations of all inhomogeneous orthogonal Lie algebras ${\rm iso}(g)$ as written in a tensorial and unified form. Such deformations are determined by a vector $τ$ which for Lorentzian signature can be taken time-, light- or space-like. We focus on some mathematical aspects related to this subject. Firstly, we describe real forms with connection to the metric's signatures and their compatibility with the reality condition for the corresponding $κ$-Minkowski (Hopf) module algebras. Secondly, $h$-adic vs $q$-analog (polynomial) versions of deformed algebras including specialization of the formal deformation parameter $κ$ to some numerical value are considered. In the latter the general covariance is lost and one deals with an orthogonal decomposition. The last topic treated in this paper concerns twisted extensions of $κ$-deformations as well as the description of resulting noncommutative spacetime algebras in terms of solvable Lie algebras. We found that if the type of the algebra does not depend on deformation parameters then specialization is possible.
description: new extended version with new material added and with title changed
Reprogramming of Adult Human Fibroblasts to Dopaminergic Neurons
Creators: name: Shrigley, Shelby
name: Drouin-Ouellet, Janelle
name: Birtele, Marcella
name: Barker, Roger A
name: Parmar, Malin
Publisher: name: Zenodo
Year: 2018

description: Parkinson’s disease (PD) is a neurodegenerative disease characterised by progressive loss of dopaminergic (DA) neurons in the substantia nigra and accumulation of pathological a-synuclein. Previous work has shown that it is possible to generate DA neurons from fetal tissue and embryonic stem cells and, when transplanted into animal models of PD, these cells can integrate and provide improvement in motor symptoms. However, in order to translate these into clinical therapies there are a number of logistical and ethical concerns with using cells derived from embryonic sources. With new reprogramming technologies, we can now generate DA neurons from somatic cell sources, which also allows for the possibility to use patient specific cells or matched donors. The main purpose of this project is to develop robust protocols for the generation of DA neurons from adult human fibroblasts, from both healthy individuals and PD patients. We will reprogram cells directly into induced neurons (iNs) and also via a pluripotent stem cell (iPSC) intermediate and investigate if there are any differences in gene expression, morphology or phenotype between the DA neurons generated from healthy and PD donors. The results will provide a more robust protocol for the generation of reprogrammed DA neurons from adult donors and will help to pave the way for future research assessing their potential for brain repair and disease modelling.
Impact of quantum entanglement on spectrum of cosmological fluctuations
Creators: name: Kanno, Sugumi
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the effect of entanglement between two causally separated open charts in de Sitter space on the spectrum of vacuum fluctuations. We consider a free massive scalar field, and construct the reduced density matrix by tracing out the vacuum state for one of the open charts, as recently derived by Maldacena and Pimentel. We formulate the mean-square vacuum fluctuations by using the reduced density matrix and show that the scale invariant spectrum of massless scalar field is realized on small scales. On the other hand, we find that the quantum entanglement affects the shape of the spectrum on large scales comparable to or greater than the curvature radius.
description: 21 pages, 5 figures. A normalization error is corrected. The qualitative result remains unchanged
HERMES: Easing the path to FAIR software publications
Creators: name: Druskat, Stephan
name: Bertuch, Oliver
name: Knodel, Oliver
name: Meinel, Michael
name: Juckeland, Guido
name: Schlauch, Tobias
name: Kelling, Jeffrey
name: Pape, David
Publisher: name: Zenodo
Year: 2023
Subjects: HERMES
software publication
software metadata
FAIR4RS

description: Researchers are required to publish research outcomes; for RSEs this means publishing software. In this talk we present an open source software toolchain that helps researchers publish software automatically, with rich descriptive metadata. Only these rich metadata can make software publications truly FAIR, and support correct software citation to unlock academic credit. The toolchain can be plugged into continuous integration (CI) systems to harvest existing metadata from source code repositories and connected platforms. Metadata are processed, collated and presented for curation to prepare for automatic submission to publication repositories that provide PIDs (e.g. DOIs) for every software version. This saves RSEs arduous manual labour. The talk will outline our concept, describe the current state of development, detail the CI and publication platforms it works with and the documentation and training materials we develop, and give an outlook on sustainability and future development.
Measuring Option Implied Degree of Distress in the US Financial Sector Using the Entropy Principle
Creators: name: Matros, Philipp
name: Vilsmeier, Johannes
Publisher: name: Universität Regensburg
Year: 2012
Subjects: subject: Entropy Principle, Risk Neutral Density, Probability of Default, Financial Stability Indicator, Credit Default Swaps
subject: 330 Wirtschaft
subject: C14
subject: C32
subject: G01

description: We estimate time series of option implied Probabilities of Default (PoDs) for 19 major US financial institutions from 2002 to 2012. These PoDs are estimated as mass points of entropy based risk neutral densities and subsequently corrected for maturity dependence. The obtained time series are evaluated with regard to their consistency and predictive power and their properties are compared to Credit Default Swap Spreads (CDS). Moreover, we also derive an indicator for the systemic risk in the US financial sector. We find that the PoDs are superior to CDS in identifying the high risk banks prior to the Lehman crisis.
A renewal theory approach to IBD sharing
Creators: name: Carmi, Shai
name: Wilton, Peter
name: Wakeley, John
name: Pe'er, Itsik
Publisher: name: arXiv
Year: 2014
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: A long genomic segment inherited by a pair of individuals from a single, recent common ancestor is said to be identical-by-descent (IBD). Shared IBD segments have numerous applications in genetics, from demographic inference to phasing, imputation, pedigree reconstruction, and disease mapping. Here, we provide a theoretical analysis of IBD sharing under Markovian approximations of the coalescent with recombination. We describe a general framework for the IBD process along the chromosome under the Markovian models (SMC/SMC'), as well as introduce and justify a new model, which we term the renewal approximation, under which lengths of successive segments are independent. Then, considering the infinite-chromosome limit of the IBD process, we recover previous results (for SMC) and derive new results (for SMC') for the mean number of shared segments longer than a cutoff and the fraction of the chromosome found in such segments. We then use renewal theory to derive an expression (in Laplace space) for the distribution of the number of shared segments and demonstrate implications for demographic inference. We also compute (again, in Laplace space) the distribution of the fraction of the chromosome in shared segments, from which we obtain explicit expressions for the first two moments. Finally, we generalize all results to populations with a variable effective size.
description: 35 pages, 9 figures
Spectroscopy for a Few Atoms Harmonically-Trapped in One Dimension
Creators: name: Harshman, N. L.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Spectroscopic labels for a few particles with spin that are harmonically trapped in one-dimension with effectively zero-range interactions are provided by quantum numbers that characterize the symmetries of the Hamiltonian: permutations of identical particles, parity inversion, and the separability of the center-of-mass. The exact solutions for the non-interacting and infinitely repulsive cases are reduced with respect to these symmetries. This reduction explains how states of single-component and multi-component fermions and bosons transform under adiabatic evolution from non-interacting to strong hard-core repulsion. These spectroscopic methods also clarify previous analytic and numerical results for intermediate values of interaction strength. Several examples, including adiabatic mapping for two-component fermionic states in the cases $N=3-5$, are provided.
description: version 3: 11 pages, 1 figure, 16 tables. Few corrections of v2 to match published form
The four elements of achieving research software sustainability for long tail projects
Creators: name: Druskat, Stephan
name: Krause, Thomas
Publisher: name: Zenodo
Year: 2023
Subjects: research software sustainability
linguistic annotation software
software maintenance
software documentation
technical sustainability

description: At deRSE19 we presented Hexatomic, a project to investigate what small research software projects need to make their software more sustainable. This talk reports our results. Developing annotation software for multi-layer linguistic corpora, we found that there is a minimal infrastructure that needs to be in place to activate a potential for sustainability in the first place, and that four elements play key roles in reducing the risk of software collapse. These four elements are: a clearly defined, resourced maintainer role; multi-modal documentation to guide maintenance and use; automated tests; code review and triage processes supported by static code analysis. We have tested this by performing changes in maintainership and observing success in reviving development and maintenance activities. Our results furthermore clearly point to the necessity for RSEs to be involved in software projects as part of research projects. In this talk, we describe our research project, the minimal infrastructure as well as development, maintenance, and release and publication workflows we implemented, and how the four elements helped maintainers take up their roles.
Pour une science ouverte et partagée. Enjeux, bénéfices et positionnement de l'IRD
Creators: name: Desconnets, Jean Christophe
Publisher: name: Zenodo
Year: 2022

description: "Pour une science ouverte et partagée. Enjeux, bénéfices et positionnement de l'IRD"
 Présentation de Jean Christophe Desconnets lors du séminaire de lancement de la JEAI TANIT - 9 juin 2022, Hôtel Mechtel, Tunis, Tunisie
Framework for Model Independent Analyses of Multiple Extra Quark Scenarios
Creators: name: Barducci, D.
name: Belyaev, A.
name: Buchkremer, M.
name: Cacciapaglia, G.
name: Deandrea, A.
name: De Curtis, S.
name: Marrouche, J.
name: Moretti, S.
name: Panizzi, L.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper we present an analysis strategy and a dedicated tool to determine the exclusion confidence level for any scenario involving multiple heavy extra quarks with generic decay channels, as predicted in several extensions of the Standard Model. We have created, validated and used a software package, called XQCAT (eXtra Quark Combined Analysis Tool), which is based on publicly available experimental data from direct searches for top partners and from Supersymmetry inspired searches. By means of this code, we recast the limits from CMS on new heavy extra quarks considering a complete set of decay channels. The resulting exclusion confidence levels are presented for some simple scenarios with multiple states and general coupling assumptions. Highlighting the importance of combining multiple topology searches to obtain accurate re-interpretations of the existing searches, we discuss the reach of the SUSY analyses so as to set bounds on new quark resonances. In particular, we report on the re-interpretation of the existing limits on benchmark scenarios with one and multiple pair-produced top partners having non-exclusive couplings to the third Standard Model generation of quarks.
description: 31 pages, 6 figures, 3 tables, version accepted for publication in JHEP
An inertial forward-backward algorithm for monotone inclusions
Creators: name: Lorenz, Dirk A.
name: Pock, Thomas
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Numerical Analysis (math.NA)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: In this paper, we propose an inertial forward backward splitting algorithm to compute a zero of the sum of two monotone operators, with one of the two operators being co-coercive. The algorithm is inspired by the accelerated gradient method of Nesterov, but can be applied to a much larger class of problems including convex-concave saddle point problems and general monotone inclusions. We prove convergence of the algorithm in a Hilbert space setting and show that several recently proposed first-order methods can be obtained as special cases of the general algorithm. Numerical results show that the proposed algorithm converges faster than existing methods, while keeping the computational cost of each iteration basically unchanged.
description: The final publication is available at http://link.springer.com
Exploring Representation Learning for Small-Footprint Keyword Spotting
Creators: name: Cui, Fan
name: Guo, Liyong
name: Wang, Quandong
name: Gao, Peng
name: Wang, Yujun
Publisher: name: arXiv
Year: 2023
Subjects: subject: Sound (cs.SD)
subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: Audio and Speech Processing (eess.AS)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this paper, we investigate representation learning for low-resource keyword spotting (KWS). The main challenges of KWS are limited labeled data and limited available device resources. To address those challenges, we explore representation learning for KWS by self-supervised contrastive learning and self-training with pretrained model. First, local-global contrastive siamese networks (LGCSiam) are designed to learn similar utterance-level representations for similar audio samplers by proposed local-global contrastive loss without requiring ground-truth. Second, a self-supervised pretrained Wav2Vec 2.0 model is applied as a constraint module (WVC) to force the KWS model to learn frame-level acoustic representations. By the LGCSiam and WVC modules, the proposed small-footprint KWS model can be pretrained with unlabeled data. Experiments on speech commands dataset show that the self-training WVC module and the self-supervised LGCSiam module significantly improve accuracy, especially in the case of training on a small labeled dataset.
Constraining the Origin of Magnetar Flares
Creators: name: Link, Bennett
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Sudden relaxation of the magnetic field in the core of a magnetar produces mechanical energy primarily in the form of shear waves which propagate to the surface and enter the magnetosphere as relativistic Alfvén waves. Due to a strong impedance mismatch, shear waves excited in the star suffer many reflections before exiting the star. If mechanical energy is deposited in the core and is converted {\em directly} to radiation upon propagation to the surface, the rise time of the emission is at least seconds to minutes, and probably minutes to hours for a realistic magnetic field geometry, at odds with observed rise times of $\lap 10$ ms for both and giant flares. Mechanisms for both small and giant flares that rely on the sudden relaxation of the magnetic field of the core are rendered unviable by the impedance mismatch, requiring the energy that drives these events to be stored in the magnetosphere just before the flare. ends, unless the waves are quickly damped.
description: Final version in Monthly Notices of the Royal Astronomical Society. 13 pages, 5 figures
Solvent Phase Optimizations Improve Correlations with Experimental Stability Constants for Aqueous Lanthanide Complexes
Creators: name: Alejo, Andrés García
name: De Silva, Nuwan
name: Liu, Yichen
name: Windus, Theresa L.
name: García, Marilú Pérez
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Biochemistry
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Hematology
subject: Plant Biology

description: Stability constants provide insight into ion complexation in water. While computational studies have been shown to model the energy of the complexation successfully using a thermodynamic cycle approach, it does not extend to calculating the stability constants for 1:1 lanthanide to ligand complexes in solution. Using B3LYP and 6-31+G* Pople basis with small core effective core potential (ECP) on the lanthanum ion, and a solvent model based on the full solute electron density (SMD) solvation model we computed and compared with previously published stability constants of the ligands: acetate, acetohydroximate, acetylacetonate, methanoate, tropolonate, hydroxide, catecholate, malonate, oxalate, phthalate, and sulfate. The best R2 values for the thermodynamic cycle can only be determined by separating the mono and divalent ions to achieve an R2 value of 0.86 and 0.74 for mono and divalent ions, respectively. We show that by optimizing the lanthanide-ligand structures in implicit solvent, we achieve an improved correlation between experimental and computed stability constants of R2 value of 0.89 for the combined mono and divalent ions.
Quark-Gluon Plasma as the Possible Source of Cosmological Dark Radiation
Creators: name: Birrell, Jeremiah
name: Rafelski, Johann
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The effective number of neutrinos, $N_{\text{eff}}$, obtained from CMB fluctuations accounts for all effectively massless degrees of freedom present in the Universe, including but not limited to the three known neutrinos. Using a lattice-QCD derived QGP equation of state, we constrain the observed range of $N_{\text{eff}}$ in terms of the the freeze-out of unknown degrees of freedom near to quark-gluon hadronization. We explore limits on the coupling of these particles, applying methods of kinetic theory. We present bounds on the coupling of such particles and discuss the implications of a connection between $N_{\text{eff}}$ and the QGP transformation for laboratory studies of QGP.
description: 5 pages, 2 figures
Mutually connected component of network of networks with replica nodes
Creators: name: Bianconi, Ginestra
name: Dorogovtsev, Sergey N.
name: Mendes, José F. F.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We describe the emergence of the giant mutually connected component in networks of networks in which each node has a single replica node in any layer and can be interdependent only on its replica nodes in the interdependent layers. We prove that if in these networks, all the nodes of one network (layer) are interdependent on the nodes of the same other interconnected layer, then, remarkably, the mutually connected component does not depend on the topology of the network of networks. This component coincides with the mutual component of the fully connected network of networks constructed from the same set of layers, i.e., a multiplex network.
description: (9 pages, 2 figures )
Analysis of the $Z(4430)$ as the first radial excitation of the $Z_c(3900)$
Creators: name: Wang, Zhi-Gang
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this article, we take the $Z_c(3900)$ and $Z(4430)$ as the ground state and the first radial excited state of the axial-vector tetraquark states with $J^{PC}=1^{+-}$, respectively, and study their masses and pole residues with the QCD sum rules by calculating the contributions of the vacuum condensates up to dimension-10 in a consistent way in the operator product expansion. The numerical result favors assigning the $Z_c(3900)$ and $Z(4430)$ as the ground state and first radial excited state of the axial-vector tetraquark states, respectively.
description: 11 pages, 4 figures
Module M.4 Simple linear regression analysis
Creators: name: Hernández-Pacheco, Raisa
name: Bland, Alexandra
Publisher: name: QUBES Educational Resources
Year: 2023

description: Introduction to Primate Data Exploration and Linear Modeling with R was created with the goal of providing training to undergraduate biology students on data management and statistical analysis using authentic data of Cayo Santiago rhesus macaques. Module M.4 introduces simple linear regression analysis in R.
Mapping the particle acceleration in the cool core of the galaxy cluster RX J1720.1+2638
Creators: name: Giacintucci, Simona
name: Markevitch, Maxim
name: Brunetti, Gianfranco
name: ZuHone, John A.
name: Venturi, Tiziana
name: Mazzotta, Pasquale
name: Bourdin, Hervé
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present new deep, high-resolution radio images of the diffuse minihalo in the cool core of the galaxy cluster RX J1720.1+2638. The images have been obtained with the Giant Metrewave Radio Telescope at 317, 617 and 1280 MHz and with the Very Large Array at 1.5, 4.9 and 8.4 GHz, with angular resolutions ranging from 1" to 10". This represents the best radio spectral and imaging dataset for any minihalo. Most of the radio flux of the minihalo arises from a bright central component with a maximum radius of ~80 kpc. A fainter tail of emission extends out from the central component to form a spiral-shaped structure with a length of ~230 kpc, seen at frequencies 1.5 GHz and below. We find indication of a possible steepening of the total radio spectrum of the minihalo at high frequencies. Furthermore, a spectral index image shows that the spectrum of the diffuse emission steepens with the increasing distance along the tail. A striking spatial correlation is observed between the minihalo emission and two cold fronts visible in the Chandra X-ray image of this cool core. These cold fronts confine the minihalo, as also seen in numerical simulations of minihalo formation by sloshing-induced turbulence. All these observations favor the hypothesis that the radio emitting electrons in cluster cool cores are produced by turbulent reacceleration.
description: 16 pages, 11 figures, accepted for publication in The Astrophysical Journal
Effect of Structural Transition on Magnetic and Dielectric Properties of La and Mn co-substituted BiFeO3 Ceramics
Creators: name: Kumar, Pawan
name: Kar, Manoranjan
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Bi1-xLaxFe1-xMnxO3 (x = 0.000 - 0.300) ceramics prepared by the tartaric acid modified sol-gel technique have been studied to analyze the effect of composition driven structural transition on the magnetic properties of bismuth ferrite (BiFeO3). It was found that the co-substitution of La & Mn at Bi & Fe sites leads to suppression of impurity phases (Bi2Fe4O9 and Bi25FeO40) which generally appear in BiFeO3. The quantitative crystallographic phase analysis has been carried out by double phase Rietveld analysis of all the XRD patterns which indicates the existence of compositional driven crystal structure transformation from rhombohederal (space group R3c) to the orthorhombic (space group Pbnm) with the increase in substitution concentration. The 5% co-substituted sample exhibit high remnant magnetization i.e. about 15 times that of BiFeO3 which is due to the suppression of cycloid spin structure and enhanced canting angle of antiferromagnetically ordered spins caused by the crystal lattice distortion. However, further increase in substitution results in the reduction of remnant magnetization and coercivity due to the appearance of complete antiferromagnetic ordering in the orthorhombic structure because of the significant contribution from the crystallographic phase of Pbnm space group (as obtained from double phase Rietveld analysis). The frequency independent higher dielectric constant and lower dielectric loss were observed for 5% co-substitution. Hence, this particular composition may be interesting for device applications.
description: 10 figures and 4 tables. arXiv admin note: substantial text overlap with arXiv:1401.4059, Materials Chemistry and Physics, 2014
Thoughts on entropic gravity in the Parikh-Wilczek tunneling model of Hawking radiation
Creators: name: Wen, Wen-Yu
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this letter, we use the Parikh-Wilczek tunneling model of Hawking radiation to illustrate that a reformulation of Verlinde's entropic gravity is needed to derive the Newton's law for a temperature-varying screen, demanded by the conservation of energy. Furthermore, the entropy stored in the holographic screen is shown to be additive and its temperature dependence can be obtained.
description: 5 pages, 1 figure, version submitted to EPJC
Spin state in the propagation of quantum relativistic particles along classical trajectories
Creators: name: Rubio, Jesús
name: Luis, Alfredo
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We address the propagation of the spin along classical trajectories for a 1/2-spin particle obeying the Dirac equation with scalar potentials. Focusing on classical trajectories as the exact propagation of wave-function discontinuities we find an explicit spin-transport law for the case of the Dirac oscillator. In the general case we examine the spin propagation along classical trajectories emerging as an approximation of the quantum dynamics via the mechanical analog of the optical eikonal asymptotic approach. Throughout we establish as many parallels as possible with the equivalent situation for the electromagnetic field.
description: 8 pages, 5 figures
ATLAS: Automatically Detecting Discrepancies Between Privacy Policies and Privacy Labels
Creators: name: Jain, Akshath
Publisher: name: Carnegie Mellon University
Year: 2023
Subjects: Applied Computer Science

description: Privacy policies are long, complex documents that end-users seldom read. Privacy labels aim to ameliorate these issues by providing succinct summaries of salient data practices. In December 2020, Apple began requiring that app developers submit privacy labels describing their apps’ data practices. Yet, research suggests that app developers often struggle to do so. In this paper, we automatically identify possible discrepancies between mobile app privacy policies and their privacy labels. Such discrepancies could be indicators of potential privacy compliance issues.
 We introduce the Automated Privacy Label Analysis System (ATLAS). ATLAS includes three components: a pipeline to systematically retrieve iOS App Store listings and privacy policies; an ensemble-based classifier capable of predicting privacy labels from the text of privacy policies with 91.3% accuracy using state-of-the-art NLP techniques; and a discrepancy analysis mechanism that enables a large-scale privacy analysis of the iOS App Store.
 Our system has enabled us to analyze 354,725 iOS apps. We find several interesting trends. For example, only 40.3% of apps in the App Store provide easily accessible privacy policies, and only 29.6% of apps provide both accessible privacy policies and privacy labels. Among apps that provide both, 88.0% have at least one possible discrepancy between the text of their privacy policy and their privacy label, which could be indicative of a potential compliance issue. We find that, on average, apps have 5.32 such potential compliance issues.
 We hope that ATLAS will help app developers, researchers, regulators, and mobile app stores alike. For example, app developers could use our classifier to check for discrepancies between their privacy policies and privacy labels, and regulators
 could use our system to help review apps at scale for potential compliance issues.
Highly Efficient Pertraction of Tetravalent Neptunium Ions Across a Flat Sheet Supported Liquid Membrane Containing Two Different Aza-Crown Ether-Based Multiple Diglycolamide Ligands
Creators: name: Mahanty, Bholanath
name: Mohapatra, Prasanta K.
name: Egberink, Richard J. M.
name: Huskens, Jurriaan
name: Verboom, Willem
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Biochemistry
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences

description: Pertraction of Np(IV) across a PTFE membrane containing two different aza-crown ether-based multiple diglycolamide (DGA) ligands termed as LI (3 DGA arms) or LII (4 DGA arms) was investigated using nitric acid as feed solution. A few of the studies were also carried out with Pu(IV) for comparison purposes. The kinetics of the extraction of Np(IV) and Pu(IV) was fast at 3 M HNO3 and within 10 min reaches the equilibrium distribution (D) ratio with both ligands. However, the stripping kinetics was slower especially with ligand LII. The extraction and transport studies were carried out using 1.0 × 10−3 M ligand solution in 95% n-dodecane + 5% isodecanol. The transport rates were slower with ligand LII than with LI at higher nitric acid concentrations (>1 M HNO3) and the transport rates decreased with nitric acid concentration with both ligands. The effective diffusion coefficients (Deff) of Np(IV) were estimated using the lag-time method as 6.2 × 10−8 cm2 s−1 (LI) and 4.6 × 10−8 cm2 s−1 (LII). The stability data suggest that the LI containing supported liquid membrane (SLM) is comparatively more stable than that of LII and the transport flux remains the same up to nine days of operation in case of ligand LI.
Effect of C-face 4H-SiC(0001) deposition on thermopower of single and multilayer graphene in AA, AB and ABC stacking
Creators: name: Wierzbowska, Malgorzata
name: Dominiak, Adam
name: Pizzi, Giovanni
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The Seebeck coefficient in multilayer graphene is investigated within the density-functional theory, using the semiclassical Boltzmann equations and interpolating the bands in a maximally-localized Wannier functions basis set. We compare various graphene stackings (AA, AB and ABC) both free-standing and deposited on a $4H$-SiC(0001) C-terminated substrate. We find that the presence of the SiC substrate can significantly affect the thermopower properties of graphene layers, depending on the stacking, providing a promising way to tailor efficient graphene-based devices.
description: 7 pages, 4 figures
Fine-grained uncertainty relations for several quantum measurements
Creators: name: Rastegin, Alexey E.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study fine-grained uncertainty relations for several quantum measurements in a finite-dimensional Hilbert space. The proposed approach is based on exact calculation or estimation of the spectral norms of corresponding positive matrices. Fine-grained uncertainty relations of the state-independent form are derived for an arbitrary set of mutually unbiased bases. Such relations are extended with a recent notion of mutually unbiased measurements. The case of so-called mutually biased bases is considered in a similar manner. We also discuss a formulation of fine-grained uncertainty relations in the case of generalized measurements. The general approach is then applied to two measurements related to state discrimination. The case of three rank-one projective measurements is further examined in details. In particular, we consider fine-grained uncertainty relations for mutually unbiased bases in three-dimensional Hilbert space.
description: 13 pages, no figures. Minor improvements. The bibliography is extended. To appear in Quantum Inf. Processing
Solvent Phase Optimizations Improve Correlations with Experimental Stability Constants for Aqueous Lanthanide Complexes
Creators: name: García, Marilú Pérez
name: Alejo, Andrés García
name: De Silva, Nuwan
name: Liu, Yichen
name: Windus, Theresa L.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Biochemistry
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Hematology
subject: Plant Biology

description: Stability constants provide insight into ion complexation in water. While computational studies have been shown to model the energy of the complexation successfully using a thermodynamic cycle approach, it does not extend to calculating the stability constants for 1:1 lanthanide to ligand complexes in solution. Using B3LYP and 6-31+G* Pople basis with small core effective core potential (ECP) on the lanthanum ion, and a solvent model based on the full solute electron density (SMD) solvation model we computed and compared with previously published stability constants of the ligands: acetate, acetohydroximate, acetylacetonate, methanoate, tropolonate, hydroxide, catecholate, malonate, oxalate, phthalate, and sulfate. The best R2 values for the thermodynamic cycle can only be determined by separating the mono and divalent ions to achieve an R2 value of 0.86 and 0.74 for mono and divalent ions, respectively. We show that by optimizing the lanthanide-ligand structures in implicit solvent, we achieve an improved correlation between experimental and computed stability constants of R2 value of 0.89 for the combined mono and divalent ions.