cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Theory of two magnon Raman scattering in antiferromagnetic iron pnictides
Creators: name: Chen, C. -C.
name: Jia, C. J.
name: Kemper, A. F.
name: Singh, R. R. P.
name: Devereaux, T. P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Although the parent iron-based pnictides and chalcogenides are itinerant antiferromagnets, the use of local moment picture to understand their magnetic properties is still widespread. We study magnetic Raman scattering from a local moment perspective for various quantum spin models proposed for this new class of superconductors. These models vary greatly in the level of magnetic frustration and show a vastly different two-magnon Raman response. Light scattering by two-magnon excitations thus provides a robust and independent measure of the underlying spin interactions. In accord with other recent experiments, our results indicate that the amount of magnetic frustration in these systems may be small.
description: Original: 4+ pages, 4 figures. Replaced: 4+ pages, 4 figure with revised title and content
title: Feuille_laurier_77
Creators: name: Louvet, Jérôme
name: UMR 7055 Préhistoire et Technologie
Publisher: name: Archeovision
Year: 2021

description: Feuille de laurier  façonnée par une technique de retouche par percussion  dans du silex bergeraçois. Expérimentateur : J. Pelegrin. - Note : Fiche de l'objet visible à l'adresse suivante : https://teknotek.pretech.cnrs.fr/s/fr/item/2648
Additional file 6 of Out-of-pocket medical expenses compared across five years for patients with one of five common cancers in Australia
Creators: name: Rodriguez-Acevedo, Astrid J.
name: Chan, Raymond J.
name: Olsen, Catherine M.
name: Pandeya, Nirmala
name: Whiteman, David C.
name: Gordon, Louisa G.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Additional file 6. Price and Quantity Index.
Mining and characterizing cross-platform apps
Creators: name: Ali, Mohamed Hassanein Tawfik Ibrahim
Publisher: name: University of British Columbia
Year: 2017

description: Smartphones and the applications (apps), which run on them, have grown tremendously over the past few years. To capitalize on this growth and attract more users, developing the same app for different platforms has become a common industry practice. However, each mobile platform has its own development language, Application program interfaces (APIs), software development kits (SDKs) and online stores for distributing apps to users. To understand the characteristics of and differences in how users perceive the same app implemented for and distributed through different platforms, we present a large-scale comparative study of cross-platform apps. We mine the characteristics of 80,000 app-pairs (160K apps in total) from a corpus of 2.4 million apps collected from the Apple and Google Play app stores. We quantitatively compare their app-store attributes, such as stars, versions, and prices. We measure the aggregated user-perceived ratings and find many differences across the platforms. Further, we employ machine learning to classify 1.7 million textual user reviews obtained from 2,000 of the mined app-pairs. We analyze discrepancies and root causes of user complaints to understand cross-platform development challenges that impact cross-platform user-perceived ratings. We also follow up with the developers to understand the reasons behind identified differences. Further, we take a closer look at a special category of cross-platform apps, which are built using Cross Platform Tools (CPTs). CPTs allow developers to use a common code-base to simultaneously create apps for multiple platforms. Apps created using these CPTs are called hybrid apps. We mine 15,512 hybrid apps; measure their aggregated user-perceived ratings and compare them to native apps of the same category.
title: Hache 11
Creators: name: Louvet, Jérôme
name: UMR 7055 Préhistoire et Technologie
Publisher: name: Archeovision
Year: 2021
Subjects: subject: débitage lithique
subject: polissage
subject: hache
subject: silex

description: Hache polie issue de la Technothèque
description: 1 fichier 3D (PLY), 1 fichier PDF, 236 fichiers image (JPG), 235 fichiers image (PNG)
title: How can musicians make music with people with dementia?: an investigation of musician-led musical practices for those living with dementia
Creators: name: Delgado, I.
Publisher: name: Royal College of Music
Year: 2020

description: Recent studies demonstrate that music can significantly contribute to improving the overall quality of life of people living with dementia. However, precise information regarding the how to practically use music in order to successfully achieve its benefits is scarce. This project’s main research question explores what and how music practices can be employed in music workshops for people with dementia. Four related questions are studied: (1) why song-writing is the focus of Turtle Song and what makes it a powerful practice; (2) what skill-set musicians should have to work in this field; (3) whether workshops should focus on a single music practice or a broad variety of them; and (4) how experiencing a project like Turtle Song impacts young musicians. All this was explored through participation in Turtle Song - a music project for people with dementia. Conclusions are supported by empirical data collected during Turtle Song: a session diary (supported by observation and audio-recordings) and interviews with the musicians involved. Key findings are that (1) song-writing can be extremely beneficial for people with dementia as it is a very complete activity - involving brainstorming, recalling memories, discussing lyrics, singing - therefore activating several cognitive and non-cognitive skills; (2) human skills such as compassion and attentiveness are crucial to work in this field but skills such as leadership and adaptability are also fundamental; (3) variety of music practices allows diversity and enjoyment but having a general structure can provide an important sense of familiarity; (4) directly experiencing music workshops for dementia can significantly increase musicians’ interest and confidence to successfully lead workshops. This work culminates in a guide-like model of a workshop session. The guide describes how to employ specific music practices in that context, being a valuable tool for musicians interested in successfully engaging with people living with dementia.
Adiabatic Formation of Rydberg Crystals with Chirped Laser Pulses
Creators: name: van Bijnen, R. M. W.
name: Smit, S.
name: van Leeuwen, K. A. H.
name: Vredenbregt, E. J. D.
name: Kokkelmans, S. J. J. M. F.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Ultracold atomic gases have been used extensively in recent years to realize textbook examples of condensed matter phenomena. Recently, phase transitions to ordered structures have been predicted for gases of highly excited, 'frozen' Rydberg atoms. Such Rydberg crystals are a model for dilute metallic solids with tunable lattice parameters, and provide access to a wide variety of fundamental phenomena. We investigate theoretically how such structures can be created in four distinct cold atomic systems, by using tailored laser-excitation in the presence of strong Rydberg-Rydberg interactions. We study in detail the experimental requirements and limitations for these systems, and characterize the basic properties of small crystalline Rydberg structures in one, two and three dimensions.
description: 23 pages, 10 figures, MPIPKS-ITAMP Tandem Workshop, Cold Rydberg Gases and Ultracold Plasmas (CRYP10), Sept. 6-17, 2010
Exact and simple results for the XYZ and strongly interacting fermion chains
Creators: name: Fendley, Paul
name: Hagendorf, Christian
Publisher: name: arXiv
Year: 2010
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We conjecture exact and simple formulas for physical quantities in two quantum chains. A classic result of this type is Onsager, Kaufman and Yang's formula for the spontaneous magnetization in the Ising model, subsequently generalized to the chiral Potts models. We conjecture that analogous results occur in the XYZ chain when the couplings obey J_xJ_y + J_yJ_z + J_x J_z=0, and in a related fermion chain with strong interactions and supersymmetry. We find exact formulas for the magnetization and gap in the former, and the staggered density in the latter, by exploiting the fact that certain quantities are independent of finite-size effects.
Discovery of an Energetic 38.5 ms Pulsar Powering the Gamma-ray Source IGR J18490-0000/HESS J1849-000
Creators: name: Gotthelf, E. V.
name: Halpern, J. P.
name: Terrier, R.
name: Mattana, F.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report the discovery of a 38.5 ms X-ray pulsar in observations of the soft gamma-ray source IGR J18490-0000 with the Rossi X-ray Timing Explorer (RXTE). PSR J1849-0001 is spinning down rapidly with period derivative 1.42E-14 s/s, yielding a spin-down luminosity 9.8E36 erg/s, characteristic age 42.9 kyr, and surface dipole magnetic field strength 7.5E11 G. Within the INTEGRAL/IBIS error circle lies a point-like XMM-Newton and Chandra X-ray source that shows evidence of faint extended emission consistent with a pulsar wind nebula (PWN). The XMM-Newton spectrum of the point source is well fitted by an absorbed power-law model with photon index Gamma(PSR) = 1.1 +/- 0.2, N_H = (4.3+/-0.6)E22 cm^-2, and F(PSR;2-10keV) = (3.8+/-0.3)E-12 erg/s/cm^2, while the spectral parameters of the extended emission are Gamma(PWN) = 2.1 and F(PWN;2-10 keV) = 9E-13 erg/s/cm^2. IGR J18490-0000 is also coincident with the compact TeV source HESS J1849-000. For an assumed distance of 7 kpc in the Scutum arm tangent region, the 0.35-10 TeV luminosity of HESS J1849-000 is 0.13% of the pulsar's spin down energy, while the ratio F(0.35-10 TeV)/F(PWN; 2-10 keV) of approx. 2. These properties are consistent with leptonic models of TeV emission from PWNe, with PSR J1849-0001 in a stage of transition from a synchrotron X-ray source to an inverse Compton gamma-ray source.
description: 5 pages, 5 figures, Latex emulateapj style. To be published in the Astrophysical Journal Letters. Accepted version, includes additional data for a more accurate timing measurement
Additional file 1 of COVID-19 underscores the important role of Clinical Ethics Committees in Africa
Creators: name: Moodley, Keymanthri
name: Kabanda, Siti Mukaumbya
name: Kleinsmidt, Anita
name: Obasa, Adetayo Emmanuel
Publisher: name: figshare
Year: 2021
Subjects: subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Science Policy
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer

description: Additional file 1: Interview guide for Promoting the establishment of Clinical Ethics Committees (CECs) in Africa.
The Autobiography of Translation - Three Collections by Contemporary Greek Women Poets: An Introduction: Rhea Galanaki, Maria Laina, Jenny Mastoraki
Creators: Van Dyck, Karen
Publisher: name: Columbia University
Year: 1998
Subjects: Poetry
Poetry--Translating
Women poets, Greek
Greek literature, Modern--Translations into English
Translating and interpreting

description: Introduction to "The Rehearsal of Misunderstanding : Three Collections By Contemporary Greek Women Poets." My title, The Rehearsal of Misunderstanding, refers to the proliferation of double entendres, obscure references, and indirect constructions in Rhea Galanaki's The Cake, Jenny Mastoraki's Tales of the Deep, and Maria Laina's Hers, as well as more generally to the challenges facing writers in Greece under and after the dictatorship (1967-1974). My title, however, also refers to the rehearsal of misunderstanding prompted by my translation of this poetry.
Q'eqchi' Mayas and defense of territory : learning through the contentious politics of land in “post-conflict” Guatemala
Creators: name: Knowlton, Autumn
Publisher: name: University of British Columbia
Year: 2017

description: My study explores how indigenous Q’eqchi’ Mayas in Guatemala draw political cohesion from their cultural relationship to their ancestral territories when responding to violent dispossession by extractive mining corporations and mono-crop agriculture. Drawing upon participant observation and 39 interviews conducted in the municipalities of Panzós and El Estor in 2013 and 2014, my research considers Q’eqchi’s’ defense of territory (defensa del territorio) as a salient, culturally specific collective action that draws continuity from centuries of conflicts over control of land and natural resources in Guatemala. Throughout Spanish colonization, independence, entry into the world capitalist market, and 20th century political upheavals, conflicts over land have featured consistently. In more recent history, the 36-year internal armed conflict (1960-1996) was a focal point of Q’eqchi’ research contributors’ testimony on their longstanding and interminable suffering for their lands. As a result of favorable conditions for international investors since the signing of the 1996 Peace Accords, the Guatemalan government has opened up the country, and indigenous lands in particular, to large-scale investment and development. Based on my findings, and building on Liza Grandia’s (2012) framing of three “conquests” of Q’eqchi’ lands, my study offers the term “fourth conquest” (Knowlton, 2016), a conquest by corporation, to explain the unique conjuncture of forces Q’eqchi’s face today when defending their lands. Their current tactical focus on land titling and juridical certainty is a response to the renewed invasion of extractive corporations into their ancestral territories. Through applying informal and social movement learning theories, this study considers Q’eqchi’s’ political encounters in defense of land as moments of learning which shape them as political actors and subjects. For Q’eqchi’s, land represents the confluence of cultural and spiritual bonds, material sustenance, and struggles to end political marginalization. A study of the labors involved in defense of territory provides valuable insights into the culturally specific learning processes that both structure and result from myriad political interventions into community, municipal, national, and international politics. Q’eqchi’s are strategically forming short and long-term alliances, and adopting identity claims based on indigenous rights, human rights, Guatemalan citizenship, and their cultural ties to their ancestral territory.
Probing Lepton Flavor Triality with Higgs Boson Decay
Creators: name: Cao, Qing-Hong
name: Damanik, Asan
name: Ma, Ernest
name: Wegman, Daniel
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: If neutrino tribimaximal mixing is explained by a non-Abelian discrete symmetry such as $A_4$, $T_7$, $Δ(27)$, etc., the charged-lepton Higgs sector has a $Z_3$ residual symmetry (lepton flavor triality), which may be observed directly in the decay chain $H^0 \to ψ_2^0 \barψ_2^0$, then $ψ_2^0 (\barψ_2^0) \to l_i^+ l_j^- ~(i \neq j)$, where $H^0$ is a standard-model-like Higgs boson and $ψ_2^0$ is a scalar particle needed for realizing the original discrete symmetry. If kinematically allowed, this unusual and easily detectable decay is observable at the LHC with 1 fb$^{-1}$ for E_{cm} = 7 TeV.
description: PRD version
Heating up the BIon
Creators: name: Grignani, Gianluca
name: Harmark, Troels
name: Marini, Andrea
name: Obers, Niels A.
name: Orselli, Marta
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We propose a new method to consider D-brane probes in thermal backgrounds. The method builds on the recently developed blackfold approach to higher-dimensional black holes. While D-brane probes in zero-temperature backgrounds are well-described by the Dirac-Born-Infeld (DBI) action, this method addresses how to probe thermal backgrounds. A particularly important feature is that the probe is in thermal equilibrium with the background. We apply our new method to study the thermal generalization of the BIon solution of the DBI action. The BIon solution is a configuration in flat space of a D-brane and a parallel anti-D-brane connected by a wormhole with F-string charge. In our thermal generalization, we put this configuration in hot flat space. We find that the finite temperature system behaves qualitatively different than its zero-temperature counterpart. In particular, for a given separation between the D-brane and anti-D-brane, while at zero temperature there are two phases, at finite temperature there are either one or three phases available.
description: 37 pages, 11 figures. v2: typos fixed, refs. added
Experiences of Nurses Providing Breastfeeding Support to Black Families in the Immediate Postpartum
Creators: name: Houston, Holly
Publisher: name: University of Illinois at Chicago
Year: 2020
Subjects: Uncategorized

description: Purpose- To describe how nurses support breastfeeding for black families during the critical immediate postpartum period. Significance- Stark racial disparities in breastfeeding persist, with black families far less likely than other demographic groups to initiate or continue breastfeeding. Though black mothers value breastfeeding support from their doctors, midwives and nurses, they are less likely to receive education and support than white mothers. Emerging literature exploring racial bias in healthcare as well as the experiences of black breastfeeding mothers suggest that healthcare providers can be a barrier to breastfeeding. Nurses are the gatekeepers of breastfeeding support during the hospital stay and are most at the bedside during the postpartum period, so it is important to understand their vital role. Methods- For this qualitative descriptive study, the researcher interviewed fifteenlabor and delivery and postpartum nurses working in hospitals of a major southeastern city. Findings- Themes emerging from the research include (1) on the job training, where nurses report that their educational programs only minimally addressed breastfeeding support, and they learned support techniques from their peers. (2) Feeling inadequate; nurses are aware of racial disparities in breastfeeding, but don’t know how to address those disparities. (3) A continuum of bias exists, where black patients are not provided the same level of support as white patients. Racism and bias are most often demonstrated in subtle and indirect ways, through peer-to-peer interactions rather than directly with patients. (4) Careful language with nurses using coded or minimizing language to talk about racism and bias. Discussion- Racism and bias impact breastfeeding support for black families. Black families are often deemed unlikely to breastfeed and don’t receive adequate support. As these practices are most often subtle and indirect, addressing racism and bias directly during nursing education and through continuing professional education may help promote equitable breastfeeding support practices.
Global Analysis of Fragmentation Functions for Eta Mesons
Creators: name: Aidala, C. A.
name: Ellinghaus, F.
name: Sassot, R.
name: Seele, J. P.
name: Stratmann, M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Fragmentation functions for eta mesons are extracted at next-to-leading order accuracy of QCD in a global analysis of data taken in electron-positron annihilation and proton-proton scattering experiments. The obtained parametrization is in good agreement with all data sets analyzed and can be utilized, for instance, in future studies of double-spin asymmetries for single-inclusive eta production. The Lagrange multiplier technique is used to estimate the uncertainties of the fragmentation functions and to assess the role of the different data sets in constraining them.
description: 11 pages, 8 figures, updated references
Additional file 2 of COVID-19 underscores the important role of Clinical Ethics Committees in Africa
Creators: name: Moodley, Keymanthri
name: Kabanda, Siti Mukaumbya
name: Kleinsmidt, Anita
name: Obasa, Adetayo Emmanuel
Publisher: name: figshare
Year: 2021
Subjects: subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Science Policy
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer

description: Additional file 2: Interview guide for Importance of clinical ethics committees or consultations during public health emergency over the COVID-19 outbreak.
Sampling and inference in social networks
Creators: name: Nettasinghe, Don Buddhika Wijayantha
Publisher: name: University of British Columbia
Year: 2017

description: This thesis explores three practically important problems related to social networks and proposes solutions utilizing tools from statistical signal processing and applied mathematics. In the first problem, we consider the maximum likelihood estimation of the degree distribution of a network from a sampled network. We are interested in the variance of the estimates for two widely used degree distribution models of large scale networks: (1) exponential model (2) power-law model. We find that the variance of the estimate is approximately an order of magnitude smaller for exponential model when compared to the power-law model. The intuition behind this interesting property is conjectured to follow from the second order stochastic dominance of the probability distributions. In the second problem, we consider a social network where each node has a vector of parameters (interests) associated with it. Only the partial graph and parameters of a subset of nodes are known. Our aim is to identify the parameters associated with each node. Assuming the Homophily behaviour of the social network, we propose a Cayley-Menger Determinant based optimization approach combined with a previously proposed spectral clustering method to solve the interest identification problem. In the third problem, we study interest influencing in social networks where the aim is to find the minimum set of missing edges in order to maximize the influential power over the interests of the individuals in the network. This problem is formulated as a classic problem in structural rigidity theory using the characteristic Contagion behaviour of social networks. We propose a solution approach using the Laman's theorem which characterizes minimally rigid graphs in the two dimensional space.
2-strand twisting and knots with identical quantum knot homologies
Creators: name: Lobb, Andrew
Publisher: name: arXiv
Year: 2011
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M25

description: Given a knot, we ask how its Khovanov and Khovanov-Rozansky homologies change under the operation of introducing twists in a pair of strands. We obtain long exact sequences in homology and further algebraic structure which is then used to derive topological and computational results. Two of our applications include giving a new way to generate arbitrary numbers of knots with isomorphic homologies and finding an infinite number of mutant knot pairs with isomorphic reduced homologies.
description: v2: Main results unchanged. More applications and more accurate context included. 18 pages, 9 figures. v3: Minor edit prior to journal submission
Phantom "renormalization" of mass of a quantized electric charge
Creators: name: Dzhunushaliev, V.
name: Kulnazarov, I.
name: Myrzakulov, R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A regular wormhole solution in gravity coupled with a phantom scalar and electromagnetic fields is found. The solution exists for a special choice of the parameter $f$ of the potential term. The mass $m$ of a wormhole filled with a phantom and electrostatic fields is calculated. It is shown that close to some point $f_0$ a small value of the mass $m$ is the remainder of two big masses of the phantom and electrostatic fields. The connection with the renormalization procedure in quantum filed theory is considered. The connection between Wheeler's idea ``mass without mass'' and renormalization procedure in quantum field theory is discussed.
description: changes in the text
Force-free twisted magnetospheres of neutron stars
Creators: name: Viganò, Daniele
name: Pons, Jose A.
name: Miralles, Juan A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The X-ray spectra observed in the persistent emission of magnetars are evidence for the existence of a magnetosphere. The high-energy part of the spectra is explained by resonant cyclotron upscattering of soft thermal photons in a twisted magnetosphere, which has motivated an increasing number of efforts to improve and generalize existing magnetosphere models. We want to build more general configurations of twisted, force-free magnetospheres as a first step to understanding the role played by the magnetic field geometry in the observed spectra. First we reviewed and extended previous analytical works to assess the viability and limitations of semi-analytical approaches. Second, we built a numerical code able to relax an initial configuration of a nonrotating magnetosphere to a force-free geometry, provided any arbitrary form of the magnetic field at the star surface. The numerical code is based on a finite-difference time-domain, divergence-free, and conservative scheme, based of the magneto-frictional method used in other scenarios. We obtain new numerical configurations of twisted magnetospheres, with distributions of twist and currents that differ from previous analytical solutions. The range of global twist of the new family of solutions is similar to the existing semi-analytical models (up to some radians), but the achieved geometry may be quite different. The geometry of twisted, force-free magnetospheres shows a wider variety of possibilities than previously considered. This has implications for the observed spectra and opens the possibility of implementing alternative models in simulations of radiative transfer aiming at providing spectra to be compared with observations.
description: 16 pages, 17 figures, A&A accepted
Chemodynamical Simulations of the Milky Way Galaxy
Creators: name: Kobayashi, Chiaki
name: Nakasato, Naohito
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present chemodynamical simulations of a Milky Way-type galaxy using a self-consistent hydrodynamical code that includes supernova feedback and chemical enrichment, and predict the spatial distribution of elements from Oxygen to Zinc. In the simulated galaxy, the kinematical and chemical properties of the bulge, disk, and halo are consistent with the observations. The bulge formed from the assembly of subgalaxies at z>3, and has higher [alpha/Fe] ratios because of the small contribution from Type Ia Supernovae. The disk formed with a constant star formation over 13 Gyr, and shows a decreasing trend of [alpha/Fe] and increasing trends of [(Na,Al,Cu,Mn)/Fe] against [Fe/H]. However, the thick disk stars tend to have higher [alpha/Fe] and lower [Mn/Fe] than thin disk stars. We also predict the frequency distribution of elemental abundance ratios as functions of time and location, which can be directly compared with galactic archeology projects such as HERMES.
description: 43 pages, 20 figures, accepted to ApJ
title: Feuille_Laurier_73
Creators: name: Louvet, Jérôme
name: UMR 7055 Préhistoire et Technologie
Publisher: name: Archeovision
Year: 2021

description: Feuille de laurier  obtenue par une technique de retouche par percussion  façonnée dans du silex bergeraçois. Expérimentateur : J. Pelegrin. - Note : Fiche de l'objet visible à l'adresse suivante : https://teknotek.pretech.cnrs.fr/s/fr/item/2652
Walther Bothe and Bruno Rossi: the birth and development of coincidence methods in cosmic-ray physics
Creators: name: Bonolis, Luisa
Publisher: name: arXiv
Year: 2011
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Theoretical and experimental developments in the 1920s that accompanied the birth of coincidence methods, as well as later crucial applications during the 1930s and 1940s are presented. In 1924 Walther Bothe and Hans Geiger applied a coincidence method to the study of Compton scattering with Geiger needle counters. Their experiment confirmed the existence of radiation quanta and established the validity of conservation principles in elementary processes. At the end of the 1920s, Bothe and Werner Kolhörster coupled the coincidence technique with the new Geiger-Müller counter to study cosmic rays, marking the start of cosmic-ray research as a branch of physics. The coincidence method was further refined by Bruno Rossi, who developed a vacuum-tube device capable of registering the simultaneous occurrence of electrical pulses from any number of counters with a tenfold improvement in time resolution. The electronic coincidence circuit bearing Rossi's name was instrumental in his research on the corpuscular nature and the properties of cosmic radiation during the early 1930s, a period characterized by a lively debate between Millikan and followers of the corpuscular interpretation. The Rossi coincidence circuit was also at the core of the counter-controlled cloud chamber developed by Patrick Blackett and Giuseppe Occhialini, and became one of the important ingredients of particle and nuclear physics. During the late 1930s and 1940s, coincidences, anti-coincidences and delayed coincidences played a crucial role in a series of experiments on the decay of the muon, which inaugurated the current era of particle physics. PACS numbers: 96.50.S-, 84.30.-r, 96.50.S-, 95.85.Ry, 29.40.-n, 13.35.Bv, 45.20.dh, 12.20.-m, 91.25.-r, 29.40.Cs, 13.20.-v, 14.60.Ef, 14.60.Cd, 78.70.Bj, 20.00.00, 95.00.00, 01.60.+q, 01.85.+f, 01.65.+g
description: To be published in American Journal of Physics; 50 pages, 8 figures
Misfit Strain Accommodation in Epitaxial ABO3 Perovskites: Lattice Rotations and Lattice Modulations
Creators: name: Vailionis, A.
name: Boschker, H.
name: Siemons, W.
name: Houwman, E. P.
name: Blank, D. H. A.
name: Rijnders, G.
name: Koster, G.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a study of the lattice response to the compressive and tensile biaxial stress in La0.67Sr0.33MnO3 (LSMO) and SrRuO3 (SRO) thin films grown on a variety of single crystal substrates: SrTiO3, DyScO3, NdGaO3 and (La,Sr)(Al,Ta)O3. The results show, that in thin films under misfit strain, both SRO and LSMO lattices, which in bulk form have orthorhombic (SRO) and rhombohedral (LSMO) structures, assume unit cells that are monoclinic under compressive stress and tetragonal under tensile stress. The applied stress effectively modifies the BO6 octahedra rotations, which degree and direction can be controlled by magnitude and sign of the misfit strain. Such lattice distortions change the B-O-B bond angles and therefore are expected to affect magnetic and electronic properties of the ABO3 perovskites.
description: Submitted to Phys. Rev. B 13 pages, 9 figures
Review of AdS/CFT Integrability, Chapter III.2: Exact world-sheet S-matrix
Creators: name: Ahn, Changrim
name: Nepomechie, Rafael I.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences
subject: 81T30, 81U15, 16T25, 17B80

description: We review the derivation of the S-matrix for planar N=4 supersymmetric Yang-Mills theory and type IIB superstring theory on an AdS5xS5 background. After deriving the S-matrix for the su(2) and su(3) sectors at the one-loop level based on coordinate Bethe ansatz, we show how su(2|2) symmetry leads to the exact asymptotic S-matrix up to an overall scalar function. We then briefly review the spectrum of bound states by relating these states to simple poles of the S-matrix. Finally, we review the derivation of the asymptotic Bethe equations, which can be used to determine the asymptotic multiparticle spectrum.
description: 20 pages, see also overview article arXiv:1012.3982, v2: references to other chapters updated, v3: references added and minor changes
High-temperature surface superconductivity in topological flat-band systems
Creators: name: Kopnin, N. B.
name: Heikkilä, T. T.
name: Volovik, G. E.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We show that the topologically protected flat band emerging on a surface of a nodal fermionic system promotes the surface superconductivity due to an infinitely large density of states associated with the flat band. The critical temperature depends linearly on the pairing interaction and can be thus considerably higher than the exponentially small bulk critical temperature. We discuss an example of surface superconductivity in multilayered graphene with rhombohedral stacking.
title: Feuille de Laurier 77
Creators: name: Louvet, Jérôme
name: UMR 7055 Préhistoire et Technologie
Publisher: name: Archeovision
Year: 2021
Subjects: subject: feuille de laurier (outil)
subject: débitage lithique
subject: silex

description: Feuille de laurier issue de la Technothèque
description: 1 fichier 3D (PLY), 1 fichier PDF, 201 fichiers image (JPG), 200 fichiers image (PNG)
Preparedness for Surgical Practice: A Framework to Understand Differences Between Training Paradigms
Creators: name: Smith, Brigitte K
Publisher: name: University of Illinois at Chicago
Year: 2020
Subjects: Uncategorized

description: A study of the differences in preparedness for independent surgical practice of the graduates of two different vascular surgery training paradigms, the integrated vascular surgery residency (0+5) and the traditional vascular surgery fellowship (5+2) was carried out using a constructivist, case-study approach. Interviews were completed with 9 0+5 graduates, 7 5+2 graduates, and 6 program directors. Four interconnected themes emerged as influencing graduates’ preparedness for practice: structural, individual, relational and organizational factors. Participants discussed how the structure of the training program, including overall time spent in training and vascular surgery-specific time, impacted preparedness. Factors related to the individual trainee, such as innate technical skills and confidence, were felt to impact the efficacy of the different training models. Faculty-trainee relationships were emphasized as important for development of trust and granting of autonomy. Finally, features of the local organization, including patient population, case volume, and case mix, further influenced preparedness. There is a complex interplay between structural, individual, relational and organizational factors, all of which influence trainees’ perceptions of their preparedness for independent practice. If efforts to re-structure graduate surgical training models are to be successful, the influence of individual, relational, and organizational factors must also be considered.
title: Feuille de Laurier 73
Creators: name: Louvet, Jérôme
name: UMR 7055 Préhistoire et Technologie
Publisher: name: Archeovision
Year: 2021
Subjects: subject: feuille de laurier (outil)
subject: débitage lithique
subject: silex

description: Feuille de laurier issue de la Technothèque
description: 1 fichier 3D (PLY), 1 fichier PDF, 207 fichiers image (JPG), 206 fichiers image (PNG)
title: Feuille_laurier_5
Creators: name: Louvet, Jérôme
name: UMR 7055 Préhistoire et Technologie
Publisher: name: Archeovision
Year: 2021

description: Feuille de laurier  obtenue par percussion indirecte  dans du silex bergeraçois. Expérimentateur : J. Pelegrin. - Note : Fiche de l'objet visible à l'adresse suivante : https://teknotek.pretech.cnrs.fr/s/fr/item/2720
title: Feuille de laurier 5
Creators: name: Louvet, Jérôme
name: UMR 7055 Préhistoire et Technologie
Publisher: name: Archeovision
Year: 2021
Subjects: subject: feuille de laurier (outil)
subject: technologie
subject: débitage lithique
subject: silex

description: Feuille de laurier issue de la Technothèque
description: 1 fichier 3D (PLY), 1 fichier PDF, 189 fichiers image (JPG), 188 fichiers image (PNG)
title: Ceramique_700
Creators: name: Louvet, Jérôme
name: UMR 7055 Préhistoire et Technologie
Publisher: name: Archeovision
Year: 2021

description: Céramique réalisée par modelage  à Taquil (Loja  Equateur)  en 2014. Responsable scientifique : Valentine Roux  Préhistoire et Technologie - Note : Fiche de l'objet visible à l'adresse suivante : https://teknotek.pretech.cnrs.fr/s/fr/item/5310
A Double-Ring Algorithm for Modeling Solar Active Regions: Unifying Kinematic Dynamo Models and Surface Flux-Transport Simulations
Creators: name: Muñoz-Jaramillo, Andrés
name: Nandy, Dibyendu
name: Martens, Petrus C. H.
name: Yeates, Anthony R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The emergence of tilted bipolar active regions and the dispersal of their flux, mediated via processes such as diffusion, differential rotation and meridional circulation is believed to be responsible for the reversal of the Sun's polar field. This process (commonly known as the Babcock-Leighton mechanism) is usually modeled as a near-surface, spatially distributed $α$-effect in kinematic mean-field dynamo models. However, this formulation leads to a relationship between polar field strength and meridional flow speed which is opposite to that suggested by physical insight and predicted by surface flux-transport simulations. With this in mind, we present an improved double-ring algorithm for modeling the Babcock-Leighton mechanism based on active region eruption, within the framework of an axisymmetric dynamo model. Using surface flux-transport simulations we first show that an axisymmetric formulation -- which is usually invoked in kinematic dynamo models -- can reasonably approximate the surface flux dynamics. Finally, we demonstrate that our treatment of the Babcock-Leighton mechanism through double-ring eruption leads to an inverse relationship between polar field strength and meridional flow speed as expected, reconciling the discrepancy between surface flux-transport simulations and kinematic dynamo models.
description: Published in ApJL
Additional file 5 of AKT signaling is associated with epigenetic reprogramming via the upregulation of TET and its cofactor, alpha-ketoglutarate during iPSC generation
Creators: name: Sekita, Yoichi
name: Sugiura, Yuki
name: Matsumoto, Akari
name: Kawasaki, Yuki
name: Akasaka, Kazuya
name: Konno, Ryo
name: Shimizu, Momoka
name: Ito, Toshiaki
name: Sugiyama, Eiji
name: Yamazaki, Terushi
name: Kanai, Eriko
name: Nakamura, Toshinobu
name: Suematsu, Makoto
name: Ishino, Fumitoshi
name: Kodera, Yoshio
name: Kohda, Takashi
name: Kimura, Tohru
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 5: Supplementary Methods, References, Tables and Figures.
title: Céramique 700
Creators: name: Louvet, Jérôme
name: UMR 7055 Préhistoire et Technologie
Publisher: name: Archeovision
Year: 2021
Subjects: subject: modelage
subject: poterie

description: Céramique réalisée par modelage, issue de la Technothèque
description: 1 fichier 3D (PLY), 1 fichier PDF, 203 fichiers image (JPG), 202 fichiers image (PNG)
Can Model Public Schools in India Expand Access to a High-Quality Education?
Creators: name: Reddy, Naveen Kumar Gopal
Publisher: name: University of Illinois at Chicago
Year: 2020
Subjects: Uncategorized

description: Chapter 1: Public School Quality and Student Outcomes: Evidence from Model Public Schools in India Abstract: I exploit a natural experiment in education policy in India to examine the effects of creating high-quality public schools. The “model” schools program established schools that have superior infrastructure, high accountability, English as the medium of instruction, and contract teachers. The model schools admit students into sixth-grade through an entrance exam. I estimate the effect of model schools on educational outcomes using a fuzzy Regression Discontinuity Design based upon the entrance exam cutoffs. I find that attending a model school has large positive effects on math, science, social science test scores, and a positive effect on the probability of joining pre-university. Lastly, turning to the costs, the per-pupil annual expenditure in model schools is comparable to that of the traditional public schools. Chapter 2: Do Effects of Model Public Schools Differ by Prior Learning Levels and Gender? Abstract: I use the within year and within school variation in the 1,300 school-by-category cutoffs from 3 cohorts of model schools to determine the effects of attending a model school based on prior learning levels and relative position within class respectively. I estimate multiple local average treatment effects and find that model schools have a similar positive effect across the ability (as measured by entrance exam score) distribution. I explore heterogeneity in effects by gender and the results suggest that model schools work for girls as well as boys. Chapter 3: School Type, Career Aspirations and Information Gaps: Descriptive Evidence from Different Public School Systems in India Abstract: In India, the interaction of attending a public school and low socio- economic status is correlated with low career aspirations (Arulmani, Van Laar, and Easton, 2003) and narrow occupational categories (Munshi and Rosenzweig, 2006; Krishna, 2017.) Using survey data from 2,842 students at 49 schools, I compare the career aspirations of students across four different systems of public schools that vary in quality. The findings are not casual as students can sort to schools. The objective of this paper is to identify and document the differences in career aspirations and information gaps to aid future research. I find that attending a system of higher quality public schools is associated with an increase in the likelihood of having a socially desirable career aspiration such as doctor or engineer. Although 45 percent of the sample aspire to be a doctor or engineer, I find that students across all four systems of schools lack knowledge on the college admission determinants to pursue medicine or engineering.
Three Body Resonance Overlap in Closely Spaced Multiple Planet Systems
Creators: name: Quillen, Alice C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We compute the strengths of zero-th order (in eccentricity) three-body resonances for a co-planar and low eccentricity multiple planet system. In a numerical integration we illustrate that slowly moving Laplace angles are matched by variations in semi-major axes among three bodies with the outer two bodies moving in the same direction and the inner one moving in the opposite direction, as would be expected from the two quantities that are conserved in the three-body resonance. A resonance overlap criterion is derived for the closely and equally spaced, equal mass system with three-body resonances overlapping when interplanetary separation is less than an order unity factor times the planet mass to the one quarter power. We find that three-body resonances are sufficiently dense to account for wander in semi-major axis seen in numerical integrations of closely spaced systems and they are likely the cause of instability of these systems. For interplanetary separations outside the overlap region, stability timescales significantly increase. Crudely estimated diffusion coefficients in eccentricity and semi-major axis depend on a high power of planet mass and interplanetary spacing. An exponential dependence previously fit to stability or crossing timescales is likely due to the limited range of parameters and times possible in integration and the strong power law dependence of the diffusion rates on these quantities.
description: submitted to MNRAS
Elektrische Impedanztomografie in der Geoelektrik
Creators: name: Helfrich-Schkarbanenko, Andreas
Publisher: name: Karlsruhe
Year: 2011
Subjects: electrical
impedance
tomography
geoelectrics
Datentransformationsmethode

description: The Electrical Impedance Tomography for a complex-valued admittance is investigated theoretically and numerically. The reconstruction of the admittance is carried out by the Tikhonov-regularized Newton-like methods. In addition, a relation between 2D and 3D problems is demonstrated and applied to accelerate the reconstruction algorithms.
A note of bitterness in his voice : youth gangs, self-expression, and conversations about interracial tension in postwar New York City, 1945-65
Creators: name: Russell, Kaitlin Laura
Publisher: name: University of British Columbia
Year: 2017

description: This thesis challenges the popular idea of 1950s New York City as a liberal desegregated city characterized by racial tolerance by looking closely at the issues of juvenile delinquency and neighbourhood-based youth gangs. Using a wide variety of archival research—including but not limited to newspaper and magazine articles, oral histories, recorded audio, photographs, and databases—it argues that groups of working class teenagers organized themselves into ethnically-divided gangs in response to postwar demographic transitions that saw a large influx of black and Hispanic migrants to historically white areas. It views anti-social gang activity, especially “rumbles” or fights, as modes of conversation that racialized gang members engaged in with fellow teenagers and the public about their experiences and frustrations trying to access the city’s theoretically desegregated recreational amenities. Using two case studies drawn from highly-publicized incidents in the 1950s, this thesis demonstrates that some youth gang members vocally pushed back against municipal and media authorities’ colourblind go-to discourse of “hoodlumism” to explain the juvenile delinquency problem facing postwar New Yorkers— revealing a city riddled with interracial tension after all.