cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Optimal Placement of Relay Nodes in Wireless Sensor Network Using Artificial Bee Colony Algorithm
Creators: name: Hashim, Hashim A.
name: Ayinde, B. O.
name: Abido, M. A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Deploying sensor nodes randomly most of the time generates initial communication hole even in highly dense networks. These communication holes cannot be totally eliminated even when the deployment is done in a structured manner. In either case, the resulting inter-node distances may degrade the performance of the network. This paper proposes an enhanced deployment algorithm based on Artificial Bees Colony (ABC). The ABC-based deployment is guaranteed to extend the lifetime by optimizing the network parameters and constraining the total number of deployed relays. Simulations validate the effectiveness of the proposed strategy under different cases of problem complexity. Results show that the proposed approach improves the network lifetime considerably when compared to solutions reported in the literature such as Shortest Path 3-D grid Deployment (SP3D) algorithm. Keywords: Artificial Bee Colony, Wiener index, optimization, relay nodes, Laplacian matrix, connected graph, vertex, edge, average distance, Laplacian matrix, Shortest Path 3-D grid Deployment, ABC, SP3D, RNs/CHs, ILDCC, SPRN, O3DwLC, algorithm, approach, single objective, multi objective, eigenvalue, First Phase Relay Nodes, NP-Hard, Deployment, proposed, second phase relay nodes, Ideal Media Access Control, cluster head, Minimum Spanning Tree, non-deterministic polynomial-time hard, two-layer hierarchical structure, Optimized 3-D deployment with Lifetime Constraints, flux, Wireless Sensor Network, size, Lifetime, Network load, number of nodes using packets, Connectivity, two layered, protocols, collision and interference.
title: Rapport de voyage, Ile de France (1926) : Ligne de New-York, 1957, voyage n°21
Creators: name: De Beaudean, Raoul
name: Delafon, Michel
name: Nadal, Jean
name: Tournyol du Clos, Guy
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2024
Subjects: subject: Compagnie Générale Transatlantique
subject: Transports maritimes - Histoire
subject: Marine marchande
subject: Journaux de bord

description: Chapitrage : Rapport général / du capitaine - Rapport du commissaire - Rapport du second - Rapport de l'officier de sécurité - Rapport de l'officier de navigation - Rapport du médecin - Rapport contentieux
description: Source: French Lines & Compagnies, 1997 004 5072-15
description: Coverage: 1957-07-30/1957-08-13
New Forms of Work Groups: Exocentric Teams
Creators: name: Goodman, Paul S.
name: Wilson, Jeanne M.
Publisher: name: Carnegie Mellon University
Year: 1990
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: This chapter is about the changing nature of work groups and the implications of these changes for workplace practices, management of change at the workplace, and for future research about groups. Specifically, we examine the following questions: • What are the basic changes in the structure and process of forms of work groups? • What are the implications of these changes for practice and research on groups in organizations? The theme of this chapter is that fundamental changes in the nature of work groups require new theoretical and methodological approaches to the study of groups and new ways of managing groups, both by group leaders and by those who design and oversee them. Since these new forms of groups span new boundaries (geographic, organizational, functional, and temporal), they present new challenges for negotiation and conflict resolution. We will therefore highlight a number of these challenges the changing nature of groups pose to both their leaders and members.
title: Reforming Masculinity? The SSR-Induced Change of Violence-Centred Masculinities in the Liberian Security Sector
Creators: name: Quest, Hendrik
Publisher: name: Humboldt-Universität zu Berlin
Year: 2020
Subjects: subject: Bürgerkrieg
subject: Gewalt
subject: Liberia
subject: Männlichkeit
subject: ddc:300

description: When it comes to understanding how peacebuilding affects violence-centred masculinities that emerge during civil wars, the literature on gender and post-conflict reconstruction reveals large gaps. To address this shortcoming, the article analyses the way in which security sector reform (SSR) in Liberia has changed institutional practices of masculinity within the Armed Forces of Liberia (AFL) and the Liberian National Police (LNP). Based on interviews conducted during field research in Monrovia in 2017 and the analysis of policy documents, the author shows that, indeed, SSR has contributed to a change of violence-centred masculinities in both institutions. Women are now, to some extent, accepted as part of both organisations. Sometimes they are even regarded as crucial for mission success. Institutionally, citizen orientation has replaced the practice to abuse civilians and, in the case of the AFL, there are now procedures in place that allow for a prosecution of sexual violence. The Liberian case shows that for changes to occur, especially disarmament and demobilisation, vetting, and the development and reinforcement of new institutional cultures via training and legislation are essential.
Particular boundary condition ensures that a fermion in d=1+5, compactified on a finite disk, manifests in d=1+3 as massless spinor with a charge 1/2, mass protected and chirally coupled to the gauge field
Creators: name: Borstnik, Norma Susana Mankoc
name: Nielsen, Holger Bech
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The genuine Kaluza-Klein-like theories--with no fields in addition to gravity--have difficulties with the existence of massless spinors after the compactification of some space dimensions \cite{witten}. We proposed in previous paper a boundary condition for spinors in d=(1+5) compactified on a flat disk that ensures masslessness of spinors (with all positive half integer charges) in d=(1+3) as well as their chiral coupling to the corresponding background gauge gravitational field. In this paper we study the same toy model, proposing a boundary condition allowing a massless spinor of one handedness and only one charge (1/2) and infinitely many massive spinors of the same charge, allowing disc to be curved. We define the operator of momentum to be Hermitean on the vector space of spinor states--the solutions on a disc with the boundary.
description: 15 pages
25 years QUENCH program. Highlights of separate-effects tests
Creators: name: Steinbrück, M.
name: Stuckert, J.
name: Große, M.
Publisher: name: Karlsruhe
Year: 2019

description: The main objective of the QUENCH program at KIT is the investigation of the hydrogen source term and materials interactions during LOCA and the early phase of severe accidents including reflood. Bundle experiments as well as separate-effects tests are conducted to provide data for the development of models and the validation of severe fuel damage code systems. In the framework of the QUENCH jubilee session highlights of 25 years separate-effects tests were presented in this talk. The focus of the QUENCH SETs are clearly on high-temperature (> 600°C) oxidation and materials interactions of zirconium alloys (cladding), absorber materials, and structure materials in well-defined atmospheres. In this context, hydrogen release and uptake by the Zr alloy cladding materials was investigated as well. More recent experiments concentrated on the high-temperature behavior of new ATF cladding materials. The main takeaways from this presentation were: • Zirconium oxidation at high temperatures is a source of significant release of hydrogen and heat affecting nuclear accident progression. • Oxidation is not always of parabolic kinetics and may be strongly dependent on experimental boundary conditions. • Eutectic interactions may lead to melt formation far below the melting points of the individual materials. These melts may slowly relocate and severely oxidize. • ATF claddings could strongly decrease the risk of temperature escalation and hydrogen detonation during BDB accidents as well as significantly increase the coping time for AMMs. • Most experimental results were used to improve models, especially in cooperation with IBRAE, GRS, and IRSN as well as internally by H. Steiner and M. Große.
Nuclear recoil effect on the binding energies in highly charged He-like ions
Creators: name: Malyshev, A. V.
name: Popov, R. V.
name: Shabaev, V. M.
name: Zubova, N. A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The most precise to-date evaluation of the nuclear recoil effect on the $n=1$ and $n=2$ energy levels of He-like ions is presented in the range $Z=12-100$. The one-electron recoil contribution is calculated within the framework of the rigorous QED approach to first order in the electron-to-nucleus mass ratio $m/M$ and to all orders in the parameter $αZ$. The two-electron $m/M$ recoil term is calculated employing the $1/Z$ perturbation theory. The recoil contribution of the zeroth order in $1/Z$ is evaluated to all orders in $αZ$, while the $1/Z$ term is calculated using the Breit approximation. The recoil corrections of the second and higher orders in $1/Z$ are taken into account within the nonrelativistic approach. The obtained results are compared with the previous evaluation of this effect [A. N. Artemyev et al., Phys. Rev. A 71, 062104 (2005)].
description: 25 pages, 3 figures, 5 tables
Towards a relativistic formulation of baryon-baryon interactions in chiral perturbation theory
Creators: name: Ren, Xiu-Lei
name: Li, Kai-Wen
name: Geng, Li-Sheng
Publisher: name: arXiv
Year: 2018
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this talk, we report on two recent studies of relativistic nucleon-nucleon and hyperon-nucleon interactions in covariant chiral perturbation theory, where they are constructed up to leading order. The relevant unknown low energy constants are fixed by fitting to the nucleon-nucleon and hyperon-nucleon scattering data. It is shown that these interactions can describe the scattering data with a quality similar to their next-to-leading order non-relativistic counterparts. These studies show that it is technically feasible to construct relativist baryon-baryon interactions, and in addition, after further refinements, these interactions may provide important inputs to {\it ab initio} relativistic nuclear structure and reaction studies and help improve our understanding of low energy strong interactions.
description: 10 pages, 10 figures, presented by Li-Sheng Geng at the 16th China National Conference on Nuclear Physics, October 19-25, Chengdu, China
New Filtering Algorithms for Combinations of Among Constraints
Creators: name: Willem-Jan Van Hoeve
name: Pesant, Gilles
name: Louis-Martin  Rousseau
name: Sabharwal, Ashish
Publisher: name: Carnegie Mellon University
Year: 1978
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: Several combinatorial problems, such as car sequencing and rostering, feature sequence constraints, restricting the number of occurrences of certain values in every subsequence of a given length.We present three new filtering algorithms for the sequence constraint, including the first that establishes domain consistency in polynomial time. The filtering algorithms have complementary strengths: One borrows ideas from dynamic programming; another reformulates it as a regular constraint; the last is customized. The last two algorithms establish domain consistency, and the customized one does so in polynomial time. We provide experimental results that demonstrate the practical usefulness of each. We also show that the customized algorithm applies naturally to a generalized version of the sequence constraint that allows subsequences of varied lengths. The significant computational advantage of using a single generalized sequence constraint over a semantically equivalent collection of among or sequence constraints is demonstrated empirically
Constraining top quark flavor violation and dipole moments through three and four top quark productions at the LHC
Creators: name: Malekhosseini, Malihe
name: Ghominejad, Mehrdad
name: Khanpour, Hamzeh
name: Najafabadi, Mojtaba Mohammadi
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: In this paper, we examine the sensitivity of the three-top quark production at the LHC to the top quark flavor-changing neutral currents (FCNC) as well as the sensitivity of the four-top production to the strong and weak dipole moments of the top quark. Upper limits at $95\%$ CL on the branching fractions of $\mathcal{B}(t\rightarrow qX)$, where $X = g, Z, γ, H$ and $q=u,c$, are set by performing an analysis on three-top events in the same-sign dilepton channel. We consider the main sources of the background processes and a realistic detector simulation is performed at the center-of-mass energy of 14 TeV. In the second part of this work, based on the recent upper limits which have been set on the four-top quark cross section by the ATLAS and CMS collaborations from 13 TeV data, we constrain the top quark strong and weak dipole moments. The bounds on the top quark dipole moments are presented using the future LHC prospects for four-top quark cross section measurement.
description: 24 Pages, 3 Figures and 5 Tables, Published in Physical Review D
New Classical Income Measurement: A Choice-Theoretic Axiomatic Approach
Creators: name: Bertomeu, Jeremy
name: Jinghong Liang
Publisher: name: Carnegie Mellon University
Year: 2006
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: At the fundamental level, the key challenge to a theory of income measurement is to resolve the problem caused by soft information, which leads to incomplete preferences within the entity (i.e. some alternatives are not always unambiguously ranked). This paper presents a formal axiomatic foundation for income measurement, building on several recent developments in the economic theory of choice. We first design a meaningful income measure for an entity with incomplete preferences. When there is enough hard information, this measure consists of finitely-many performance criteria (Line-Item Income Measure) which fully represent the incomplete decision problem of the entity. Second, a single-valued income measure (Summary Income Measure) is introduced, which extends classical income to incomplete preferences. Third, these measures can be operational and exhibit recognizable features such as linear aggregation over time and individual operating units.
Luminosity of a collider with asymmetric beams
Creators: name: Meshkov, I. N.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: A formula for the collider luminosity is derived for a head-on collision of two beams with different parameters. Three particular cases are presented: the collision of two identical axially symmetric bunches, the collision of a bunch with a coasting beam, and the collision of two coasting beams. The colliding beams have coinciding longitudinal axes. The formula is valid for colliding both counter propagating and co-propagating ("merging") beams.
Cosmic Rays, Gamma Rays and Neutrinos from Point Sources
Creators: name: Tomozawa, Yukio
Publisher: name: arXiv
Year: 1992
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The suggestion has been made that the energy spectrum from point sources such as AGN (Active Galactic Nuclei) and GBHC (Galactic Black Hole Candidates) is universal, irrespective of the nature of the emitted particles. A comparison of the energy spectrum for cosmic rays at the source and $γ$-rays from quasars obtained recently by CGRO (Compton Gamma Ray Observatory) indicates that the prediction is in agreement with the data in the average sense. This suggests that neutrinos from point sources should have a spectral index identical to that of $γ$-rays for an individual point source. This prediction is also consistent with the recent observation of neutrinos by Kamiokande and IMB in which the ratio of $ν_μ/ν_e$ is close to 1, instead of 2 as expected from atmospheric neutrinos. For a further test of the model, analysis of the time variation of $γ$-ray spectra from quasars is suggested.
description: 4, UM-TH-92-20
MOESM7 of m6A modification-mediated CBX8 induction regulates stemness and chemosensitivity of colon cancer via upregulation of LGR5
Creators: name: Zhang, Yi
name: Kang, Min
name: Zhang, Bin
name: Meng, Fanchao
name: Song, Jun
name: Kaneko, Hiroshi
name: Shimamoto, Fumio
name: Tang, Bo
Publisher: name: figshare
Year: 2019
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 7. Supplemental Methods
On the Renormalization of Heavy Quark Effective Field Theory
Creators: name: Kilian, W.
name: Mannel, T.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The construction of heavy quark effective field theory (HqEFT) is extended to arbitrary order in both expansion parameters $α_s$ and $1/m_q$. Matching conditions are discussed for the general case, and it is verified that this approach correctly reproduces the infrared behaviour of full QCD. Choosing a renormalization scheme in the full theory fixes the renormalization scheme in the effective theory except for the scale of the heavy quark field. Explicit formulae are given for the effective Lagrangian, and one--loop matching renormalization constants are computed for the operators of order $1/m$. Finally, the multiparticle sector of HqEFT is considered.
description: 16 pages, IKDA 93/23
Direct Measurement of Astrophysically Important Resonances in $^{38}\mathrm{K}(p, γ){}^{39}\mathrm{Ca}$
Creators: name: Christian, G.
name: Lotay, G.
name: Ruiz, C.
name: Akers, C.
name: Burke, D. S.
name: Catford, W. N.
name: Chen, A. A.
name: Connolly, D.
name: Davids, B.
name: Fallis, J.
name: Hager, U.
name: Hutcheon, D.
name: Mahl, A.
name: Rojas, A.
name: Sun, X.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: According to sensitivity studies, the $^{38}\mathrm{K}\left( p, γ\right){}^{39}\mathrm{Ca}$ reaction has a significant influence on $\mathrm{Ar}$, $\mathrm{K}$, and $\mathrm{Ca}$ production in classical novae. In order to constrain the rate of this reaction, we have performed a direct measurement of the strengths of three candidate $\ell = 0$ resonances within the Gamow window, at $386 \pm 10~\mathrm{keV}$, $515 \pm 10~\mathrm{keV}$, and $689 \pm 10~\mathrm{keV}$. The experiment was performed in inverse kinematics using a beam of unstable $^{38}\mathrm{K}$ impinged on a windowless $\mathrm{H}_2$ target. The $^{39}\mathrm{Ca}$ recoils and prompt $γ$ rays from $^{38}\mathrm{K}\left( p, γ\right){}^{39}\mathrm{Ca}$ reactions were detected in coincidence using a recoil mass separator and a BGO array, respectively. For the $689$ keV resonance, we observed a clear recoil-$γ$ coincidence signal and extracted resonance strength and energy values of $120^{+50}_{-30}~\mathrm{(stat.)}^{+20}_{-60}~\mathrm{(sys.)}~\mathrm{meV}$ and $679^{+2}_{-1}~\mathrm{(stat.)} \pm 1~\mathrm{(sys.)}~\mathrm{keV}$, respectively. We also performed a singles analysis, extracting a resonance strength of $120 \pm 20~\mathrm{(stat.)} \pm 15~\mathrm{(sys.)}~\mathrm{meV}$, consistent with the coincidence result. For the $386$ keV and $515$ keV resonances, we extract $90\%$ confidence level upper limits of $2.54$ meV and $18.4$ meV, respectively. We have established a new recommended $^{38}\mathrm{K}(p, γ){}^{39}\mathrm{Ca}$ rate based on experimental information, which reduces overall uncertainties near the peak temperatures of nova burning by a factor of ${\sim} 250$. Using the rate obtained in this work in model calculations of the hottest oxygen-neon novae reduces overall uncertainties on $\mathrm{Ar}$, $\mathrm{K}$, and $\mathrm{Ca}$ synthesis to factors of $15$ or less in all cases.
description: 11 pages, 6 figures, accepted for publication in Phys. Rev. C
Ferromagnetic Quantum Critical Fluctuations and Anomalous Coexistence of Ferromagnetism and Superconductivity in UCoGe Revealed by Co-NMR and NQR Studies
Creators: name: Ohta, Tetsuya
name: Nakai, Yusuke
name: Ihara, Yoshihiko
name: Ishida, Kenji
name: Deguchi, Kazuhiko
name: Sato, Noriaki K.
name: Satoh, Isamu
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Co nuclear magnetic resonance (NMR) and nuclear quadrupole resonance (NQR) studies were performed in the recently discovered UCoGe, in which the ferromagnetic and superconducting (SC) transitions were reported to occur at $T_{\rm Curie} \sim 3$ K and $T_S \sim 0.8$ K (N. T. Huy {\it et al.}, Phys. Rev. Lett. {\bf 99} (2007) 067006), in order to investigate the coexistence of ferromagnetism and superconductivity as well as the normal-state and SC properties from a microscopic point of view. From the nuclear spin-lattice relaxation rate $1/T_1$ and Knight-shift measurements, we confirmed that ferromagnetic fluctuations which possess a quantum critical character are present above $T_{\rm Curie}$ and the occurrence of ferromagnetic transition at 2.5 K in our polycrystalline sample. The magnetic fluctuations in the normal state show that UCoGe is an itinerant ferromagnet similar to ZrZn$_2$ and YCo$_2$. The onset SC transition was identified at $T_S \sim 0.7$ K, below which $1/T_1$ of 30 % of the volume fraction starts to decrease due to the opening of the SC gap. This component of $1/T_1$, which follows a $T^3$ dependence in the temperature range of $0.3 - 0.1$ K, coexists with the magnetic components of $1/T_1$ showing a $\sqrt{T}$ dependence below $T_S$. From the NQR measurements in the SC state, we suggest that the self-induced vortex state is realized in UCoGe.
description: 5 pages, 7 figures. submitted to J. Phys. Soc. Jpn. To appear in J. Phys. Soc. Jpn
NetBill: an Internet Commerce System Optimized for Network-Delivered Services
Creators: name: Sirbu, Marvin
name: J. D. Tygar
Publisher: name: Carnegie Mellon University
Year: 2002
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: NetBill is a business model set of protocols, and software implementation for commerce in information goods and other network-delivered services. It has very low transaction costs for micropayments (around 1 cent for a 10 cent item), protects the privacy of the transaction, and is highly scalable. Of special interest is the authors new certified delivery mechanism which delivers information goods if and only if the consumer has paid for them. The article discusses the design of the NetBill protocol and the authors' World Wide Web (WWW) prototype implementation. As the explosive growth of the Internet continues, more people rely on networks for timely information. However, since most information on the Internet today is free, intellectual property owners have little incentive to make valuable information accessible through the network. There are many potential providers who could sell information on the Internet and many potential consumers for that information. What is missing is an electronic commerce mechanism that links the merchants and the consumers. NetBill is a business model, set of protocols, and software implementation allowing consumers to pay owners and retailers of information. While NetBill will enable a market economy in information, it is still expected that there will be an active exchange of free information
Assess Quality of Antenatal Care Services in Public Health Facilities in Baidoa district of the Bay region
Creators: name: Fartun, Abdullahi Ali
Publisher: name: Zenodo
Year: 2025
Subjects: Assess Quality of
Antenatal Care Services
in Public Health
Facilities in Baidoa district of the Bay region

description: ABSTRACT

 Background: Antenatal care is one of the evidence-based interventions to decrease the probability of negative health outcomes for mothers and their newborns. This depends on the quality of care provided during each antenatal care visit. However, little is known about quality of antenatal care service in public health facilities in Baidoa District of the Bay region. The aim of this study was to assess quality of antenatal care services in public health facilities in Baidoa District of the Bay region.

Methods: A facility-based cross sectional study design using quantitative and qualitative data conducted from Sep to Nov 2023. Quality of care was measured as a proportion of patients receiving recommended components of care. A total of 368 pregnant women during the study period were interviewed through exit interview. Observation of health care providers was performed during 30 consultations. Data were analyzed using SPSS for windows (SPSS 20.0).

Result: this study showed that the overall level of quality of antenatal care services was 34.1% (14/41)and it was found to be of poor quality. The most frequently identified barrier was inability to take fullhistory, lack of proper counseling, poor healthcare provider, and improper registration. Quality ofantenatal care was significantly associated with residence, educational status gravidity, parity, and visit.

Conclusion: the overall quality of antenatal care is low, so the health facilities need further modification on the identified problems.

Recommendation: Regular performance of quality of antenatal care and implementing clients suggestedpoints on improvement and in service training of health care provider working in ANC clinic is essential.

Keywords:

Good quality: If the health institution provides> 75% the necessary FANC content of services, provide education on danger sign, orient on birth preparedness, provide basic preventive and therapeutic care.

Poor quality: If the health institution provides<74% the necessary FANC services, not provide education on danger sign, orient on birth preparedness, did not provide basic preventive and therapeutic car
Dynamics of the Young Binary LMC Cluster NGC 1850
Creators: name: Fischer, P.
name: Welch, D. L.
name: Mateo, M.
Publisher: name: arXiv
Year: 1992
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper we have examined the age and internal dynamics of the young binary LMC cluster NGC 1850 using BV CCD images and echelle spectra of 52 supergiants. Isochrone fits to a BV color-magnitude diagram revealed that the primary cluster has an age of $τ= 90 \pm 30$ Myr while the secondary member has $τ= 6 \pm 5$ Myr. BV surface brightness profiles were constructed out to R $>$ 40 pc, and single-component King-Michie (KM) models were applied. The total cluster luminosity varied from L$_B$ = 2.60 - 2.65 $\times 10^6$ L$_B$\sol\ and L$_V$ = 1.25 - 1.35 $\times 10^6$ as the anisotropy radius varied from infinity to three times the scale radius with the isotropic models providing the best agreement with the data. Of the 52 stars with echelle spectra, a subset of 36 were used to study the cluster dynamics. The KM radial velocity distributions were fitted to these velocities yielding total cluster masses of 5.4 - 5.9 $\pm 2.4 \times 10^4$ M\sol\ corresponding to M/L$_B$ = 0.02 $\pm 0.01$ M\sol/L$_B$\sol\ or M/L$_V$ = 0.05 $\pm 0.02$ M\sol/L$_V$\sol. A rotational signal in the radial velocities has been detected at the 93\% confidence level implying a rotation axis at a position angle of 100°. A variety of rotating models were fit to the velocity data assuming cluster ellipticities of $ε= 0.1 - 0.3$. These models provided slightly better agreement with the radial velocity data than the KM models and had masses that were systematically lower by a few percent. The preferred value for the slope of a power-law IMF is a relatively shallow, $x = 0.29 \pmm{+0.3}{-0.8}$ assuming the B-band M/L or $x = 0.71 \pmm{+0.2}{-0.4}$ for the V-band.
description: 41 pages (figures available via anonymous FTP as described below)
Linear iterative schemes for doubly degenerate parabolic equations
Creators: name: Both, Jakub W.
name: Kumar, Kundan
name: Nordbotten, Jan M.
name: Pop, Iuliu Sorin
name: Radu, Florin A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: Mathematical models for flow and reactive transport in porous media often involve non-linear, degenerate parabolic equations. Their solutions have low regularity, and therefore lower order schemes are used for the numerical approximation. Here the backward Euler method is combined with a mixed finite element method scheme, which results in a stable and locally mass-conservative scheme. At the same time, at each time step one has to solve a non-linear algebraic system, for which linear iterations are needed. Finding robust and convergent ones is particularly challenging here, since both slow and fast diffusion cases are allowed. Commonly used schemes, like Newton and Picard iterations, are defined either for non-degenerate problems, or after regularising the problem in the case of degenerate ones. Convergence is guaranteed only if the initial guess is sufficiently close to the solution, which translates into severe restrictions on the time step. Here we discuss a linear iterative scheme which builds on the $L$-scheme, and does not employ any regularisation. We prove its rigourous convergence, which is obtained for mild restrictions on the time step. Finally, we give numerical results confirming the theoretical ones, and compare the behaviour of the scheme with other schemes.
Charge density wave and charge pump of interacting fermions in circularly shaken hexagonal optical lattices
Creators: name: Qin, Tao
name: Schnell, Alexander
name: Sengstock, Klaus
name: Weitenberg, Christof
name: Eckardt, André
name: Hofstetter, Walter
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We analyze strong correlation effects and topological properties of interacting fermions with a Falicov-Kimball type interaction in circularly shaken hexagonal optical lattices, which can be effectively described by the Haldane-Falicov-Kimball model, using the real-space Floquet dynamical mean-field theory (DMFT). The Haldane model, a paradigmatic model of the Chern insulator, is experimentally relevant, because it has been realized using circularly shaken hexagonal optical lattices. We show that in the presence of staggering a charge density wave emerges, which is affected by interactions and resonant tunneling. We demonstrate that interactions smear out the edge states by introducing a finite life time of quasiparticles. Even though a general method for calculating the topological invariant of a nonequilibrium steady state is lacking, we extract the topological invariant using a Laughlin charge pump set-up. We find and attribute to the dissipations into the bath connected to every lattice site, which is intrinsic to real-space Floquet DMFT methods, that the pumped charge is not an integer even for the non-interacting case at very low reservoir temperatures. Furthermore, using the rate equation based on the Floquet-Born-Markov approximation, we calculate the charge pump from the rate equations for the non-interacting case to identify the role of the spectral properties of the bath. Starting from this approach we propose an experimental protocol for measuring quantized charge pumping.
description: 13 pages, 12 figures, published version
title: ADCO, Grènetier de Cîteaux : comptes (1499-1503) (11 H 1173), f. 00181
Creators: name: de la Côte-d'Or, Archives départementales
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CBMA/CG21/F.PETOT/2019
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: comptes

description: Grènetier de Cîteaux : comptes (1499-1503), Archives départementales de la Côte-d'Or, (11 H 1173). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Grènetier de Cîteaux : comptes (1499-1503), Archives départementales de la Côte-d'Or, (11 H 1173), f. 00181, 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
FCNCs in SUSY GUTs (flavor changing neutral currents in predictive SUSY-GUTS)
Creators: name: Leontaris, G. K.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Constraints from flavour changing neutral currents are discussed in the context of predictive Grand Unified Supersymmetric Theories. Uncertainties in the estimation of their amplitudes are minimized by using a successful mass matrix ansatz which predicts the arbitrary parameters of the Standard Model. Furthermore, Renormalization Group Equations are used in order to express the sparticle masses involved, in terms of the gaugino mass $m_{1/2}$, the universal scalar mass $m_0$ and the trilinear coupling $A$ at the GUT scale. Modifications in the low energy expressions for the squark masses due to a large top Yukawa coupling are also considered. The above results, reconciled with experimental limits are used to put lower bounds on the parameters $m_{1/2}$, $m_0$ and the low energy scalar masses.
description: (IOA-294/July 1993, Revised Version,17p, 4 figures available upon request)
Narrowing the Range: A Framework for Risk Regulators
Creators: name: Byrd, Daniel
name: Lave, Lester B.
Publisher: name: Carnegie Mellon University
Year: 2011
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: Society has yet to agree on the most critical step in risk management: identifying risk goals and translating them into regulations. say Daniel Byrd and Lester B. Lave. As a result, decisions about what to regulate have been inconsistent and sometimes arbitrary. How should society set priorities among the many actual and potential hazards? To avoid squandering limited resources, the authors say. regulators should focus on the significant risks and ignore the trivial, or de minimis, ones. Byrd and Lave propose that regulatory agencies adopt the concepts of significant and de minimis risks to guide their decision making. This approach would narrow the regulatory agenda. they say: instead of agonizing over each new situation, agencies would have clear guidance on a major portion of them. But there are several obstacles. First, the science of risk quantification is still uncertain. Second. there is no consensus on what constitutes a significant or a de minimis risk. And third. it is not clear how to handle the plethora of risks that fall in the middle. While resolution of these questions will not be easy, the authors believe that it would be a major step toward making risk management more efficient and predictable. In this article they attempt to define the concepts of significant and de minimis risks and then suggest how these concepts can be used in regulatory decisionmaking.
Crackling to periodic dynamics in sheared granular media
Creators: name: Zadeh, Aghil Abed
name: Barés, Jonathan
name: Behringer, Robert
Publisher: name: arXiv
Year: 2018
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The local and global dynamics of a sheared granular medium are studied in a model experiment as a function of several macroscopic parameters. We observe that by changing the shear rate or the loading stiffness, the system crackles, with intermittent slip avalanches, or exhibits periodic motion. By analyzing the global force, induced while shearing, we capture the transition from the crackling to the periodic regime and associated scaling laws. We deduce a novel dynamic phase diagram as a function of the shear rate and the system's stiffness. Using photo-elasticimetry, we also capture the grain-scale stress evolution, and investigate the microscopic behavior in the different regimes.
description: 6 pages, 5 figures
Quantum Cloning, Bell's Inequality and Teleportation
Creators: name: Adhikari, S.
name: Ganguly, N.
name: Chakrabarty, Indranil
name: Choudhury, B. S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We analyze a possibility of using the two qubit output state from Buzek-Hillery quantum copying machine (not necessarily universal quantum cloning machine) as a teleportation channel. We show that there is a range of values of the machine parameter $ξ$ for which the two qubit output state is entangled and violates Bell-CHSH inequality and for a different range it remains entangled but does not violate Bell-CHSH inequality. Further we observe that for certain values of the machine parameter the two-qubit mixed state can be used as a teleportation channel. The use of the output state from the Buzek-Hillery cloning machine as a teleportation channel provides an additional appeal to the cloning machine and motivation of our present work.
description: 7 pages and no figures, Accepted in Journal of Physics A
Myopic Biases in Competitions: Implications for Strategic Decision Making
Creators: name: Radzevick, Joseph R.
name: Moore, Don A.
Publisher: name: Carnegie Mellon University
Year: 2009
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: Recent research has shown that when people compare one thing to another, they tend to focus myopically on the target of the comparative judgment and do not sufficiently consider the referent to which the target is being compared. This paper applies this recent theoretical progress to the problem of predicting the outcomes of athletic competitions. In three studies, we show that the focal competitor’s strengths and weaknesses feature more prominently than do the strengths and weaknesses of the opponents. People are more confident of success when their own side is strong, regardless of how strong the competition is. Implications for theories of strategic decision making in competitive settings are discussed
Evidence for a Very Broad Line Region in PG 1138+222
Creators: name: Marziani, Paolo
name: Sulentic, Jack W.
Publisher: name: arXiv
Year: 1992
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a high S/N spectrum for the quasar PG 1138+222. We detect a very broad HeII$λ$4686 emission line component with twice the FWHM of the conventional broad line region (BLR) as evidenced by the Balmer lines. The profile shape and centroid redshift also distinguish this HeII component from the BLR features. The large ratio of HeIIł4686 to any analogous H$β$ emission component is an indicator that it arises in a very high density region ($n_e \simgt 10^{11}-10^{13}$ \cm3). This Helium component is probably emitted in a Very Broad Line Region (VBLR), where the radiation field is so strong that the Strömgren depth becomes similar to the geometrical thickness of the emitting clouds. The gas could therefore be optically thin to the Lyman continuum.
description: 15 pages + 1 Table and 3 Figures (not included but available upon request), LaTex
My Shopping Trip with Andre
Creators: name: Lave, Lester B
name: Tse-Sung  Wu
name: Hendrickson, Chris
name: McMichael, Francis
Publisher: name: Carnegie Mellon University
Year: 1985
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: In a cruise around the supermarket, a food expert shows how "convenience" items-not just products such as frozen pancakes but also packaged meats and imported fruits and vegetables-are often kinder to the environment than consumers might think. Such foods also benefit the u.S. economy big time.
title: ADCO, Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome IV, Cart. 188 (11 H 73), f. 0243r
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: cartulaire

description: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome IV, Archives départementales de la Côte-d'Or, Cart. 188 (11 H 73), f. 0243r, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome IV, Archives départementales de la Côte-d'Or, Cart. 188 (11 H 73), f. 0243r, 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
Reconstructing the properties of dark energy from recent observations
Creators: name: Wu, Puxun
name: Yu, Hongwei
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We explore the properties of dark energy from recent observational data, including the Gold Sne Ia, the baryonic acoustic oscillation peak from SDSS, the CMB shift parameter from WMAP3, the X-ray gas mass fraction in cluster and the Hubble parameter versus redshift. The $ΛCDM$ model with curvature and two parameterized dark energy models are studied. For the $ΛCDM$ model, we find that the flat universe is consistent with observations at the $1σ$ confidence level and a closed universe is slightly favored by these data. For two parameterized dark energy models, with the prior given on the present matter density, $Ω_{m0}$, with $Ω_{m0}=0.24$, $Ω_{m0}=0.28$ and $Ω_{m0}=0.32$, our result seems to suggest that the trend of $Ω_{m0}$ dependence for an evolving dark energy from a combination of the observational data sets is model-dependent.
description: 16 pages, 15 figures, To appear in JCAP
Thermalization of Color Gauge Fields in High Energy Heavy Ion Collisions
Creators: name: Iwazaki, Aiichi
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss quantum mechanical decay of color magnetic field generated initially at high energy heavy ion collisions. It is caused by Nielsen-Olesen unstable modes and is accomplished possibly in a period $<1$fm/c. We show that the decay products, i.e. incoherent gluons may be thermalized in a sufficiently short period ($< 1$fm/c). The precise determination of the period is made by calculating two point function of the color magnetic field in a model of color glass condensate.
description: 6 pages
Constraints on Extended Technicolor Models from B -> mu+ mu- X
Creators: name: Grinstein, Benjamin
name: Nir, Yosef
name: Soares, Joao M.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A recent study by Randall and Sundrum shows that models of Extended Technicolor (ETC) have interesting implications on rare B decays. We extend their study to the decay B -> mu+ mu- X. ETC models with a GIM mechanism predict a decay rate that is a factor of order 30 above the Standard Model, violating the experimental upper bound by a factor of 2-4. ``Traditional" ETC models predict a decay rate that is a factor of order 4 above the Standard Model, and will be probed when an improvement in the sensitivity of experiments by a factor of order 2-4 is achieved.
description: 7 pages and 1 figure (.ps file included), SSCL-Preprint-482, WIS-93/67/July-PH, CMU-HEP93-10
Endomorphisms of Koszul complexes: formality and application to deformation theory
Creators: name: Carocci, Francesca
name: Manetti, Marco
Publisher: name: arXiv
Year: 2018
Subjects: subject: Algebraic Geometry (math.AG)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 17B70, 14D15, 18G50, 13D10

description: We study the differential graded Lie algebra of endomorphisms of the Koszul resolution of a regular sequence on a unitary commutative $K$-algebra $R$ and we prove that it is homotopy abelian over $K$, while it is generally not formal over $R$. We apply this result to prove an annihilation theorem for obstructions of (derived) deformations of locally complete intersection ideal sheaves on projective schemes.
description: Typos corrected, added section on obstructions to derived deformations. Final version, to appear in "Rend. Circ. Mat. Palermo, II."
Nonlinear Neumann boundary stabilization of the wave equation using rotated multipliers
Creators: name: Cornilleau, Pierre
name: Loheac, Jean-Pierre
name: Osses, Axel
Publisher: name: arXiv
Year: 2007
Subjects: subject: Optimization and Control (math.OC)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 93D15

description: The rotated multipliers method is performed in the case of the boundary stabilization by means of a(linear or non-linear) Neumann feedback. this method leads to new geometrical cases concerning the "active" part of the boundary where the feedback is apllied. Due to mixed boundary conditions, these cases generate singularities. Under a simple geometrical conditon concerning the orientation of boundary, we obtain a stabilization result in both cases.
description: 17 pages, 9 figures