cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Enlargement of the European Union: A movement towards the optimal trade bloc size?
Creators: name: Glebe, Thilo W.
name: Glebe, Thilo W.
Publisher: name: Unknown
Year: 2009
Subjects: subject: International Relations/Trade
subject: trade bloc
subject: trade liberalisation
subject: game theory
subject: European Union

description: This paper analyses how the enlargement of a trade bloc will affect national welfare. We establish a partial equilibrium model of a trade bloc either operating as a monopoly with a competitive fringe or facing a duopolistic game in production taxes/subsidies. Given this framework, we demonstrate how member countries’ welfare effects depend on their trade flow and the market power of the trade bloc. A numerical estimation of the effects of EU enlargement on the major grain crop markets suggests that welfare effects are negligible. Economic reasons are therefore unlikely to be a motivating force for further enlargement.
An investigation of the mechanism of sialic acid synthase
Creators: name: Simard, Dave
Publisher: name: University of British Columbia
Year: 2009

description: Sialic acid synthase (SAS) catalyzes the aldol-like condensation of phosphoenolpyruvate (PEP) and N-acetylmannosamine (ManNAc) resulting in the formation of Nacetylneuraminic acid (NeuNAc). The neuB gene, coding for SAS, was cloned out of the Neisseria meningitidis genome and inserted into the pET-30 Xa/LIC vector, thus adding a His-tag onto the gene product. The His-tagged protein (SASHIS) was purified and kinetically characterized using a novel continuous coupled UV assay. SAS is a slow enzyme as can be seen by its k[sub cat] of 0.8 ± 0.1 s⁻¹. Furthermore, it binds to PEP more tightly than it does to ManNAc, K[sub M] 0.25 ± 0.07 mM and 9.4 ± 1.4 mM, respectively. These kinetic values for SASHIS are in reasonable agreement with literature values obtained with the wild type enzyme. The mechanism employed by SAS to catalyze the condensation reaction was unknown. Through NMR and ¹⁸O-labelled substrate experiments, it was shown that the synthase releases the phosphate of PEP through C-O bond cleavage during the condensation with ManNAc. Thus SAS uses a mechanism analogous to DAHP and KDO-8P synthases, other enzymes forming higher order sugars.
A new benchmark problem for electromagnetic modelling of superconductors: the high-Tc superconducting dynamo
Creators: name: Ainslie, Mark
name: Grilli, Francesco
name: Queval, Loic
name: Pardo, Enric
name: Perez-Mendez, Fernando
name: Mataira, Ratu
name: Morandi, Antonio
name: Ghabeli, Asef
name: Bumby, Chris
name: Brambilla, Roberto
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The high-Tc superconducting (HTS) dynamo is a promising device that can inject large DC supercurrents into a closed superconducting circuit. This is particularly attractive to energise HTS coils in NMR/MRI magnets and superconducting rotating machines without the need for connection to a power supply via current leads. It is only very recently that quantitatively accurate, predictive models have been developed which are capable of analysing HTS dynamos and explain their underlying physical mechanism. In this work, we propose to use the HTS dynamo as a new benchmark problem for the HTS modelling community. The benchmark geometry consists of a permanent magnet rotating past a stationary HTS coated-conductor wire in the open-circuit configuration, assuming for simplicity the 2D (infinitely long) case. Despite this geometric simplicity the solution is complex, comprising time-varying spatially-inhomogeneous currents and fields throughout the superconducting volume. In this work, this benchmark problem has been implemented using several different methods, including H-formulation-based methods, coupled H-A and T-A formulations, the Minimum Electromagnetic Entropy Production method, and integral equation and volume integral equation-based equivalent circuit methods. Each of these approaches show excellent qualitative and quantitative agreement for the open-circuit equivalent instantaneous voltage and the cumulative time-averaged equivalent voltage, as well as the current density and electric field distributions within the HTS wire at key positions during the magnet transit. A critical analysis and comparison of each of the modelling frameworks is presented, based on the following key metrics: number of mesh elements in the HTS wire, total number of mesh elements in the model, number of degrees of freedom (DOFs), tolerance settings and the approximate time taken per cycle for each model.
description: 22 pages, 7 figures, 2 tables
A Model for the Twist-3 Wave Function of the Pion and Its Contribution to the Pion Form Factor
Creators: name: Huang, Tao
name: Wu, Xing-Gang
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A model for the twist-3 wave function $ψ_p(x,\mathbf{k_\perp})$ of the pion has been constructed based on the moment calculation by applying the QCD sum rules, whose distribution amplitude has a better end-point behavior than that of the asymptotic one. With this model wave function, the twist-3 contributions including both the usual helicity components ($λ_1+λ_2=0$) and the higher helicity components ($λ_1+λ_2=\pm 1$) to the pion form factor have been studied within the modified pQCD approach. Our results show that the twist-3 contribution drops fast and it becomes less than the twist-2 contribution at $Q^2\sim 10GeV^2$. The higher helicity components in the twist-3 wave function will give an extra suppression to the pion form factor. The model dependence of the twist-3 contribution to the pion form factor has been studied by comparing three different models. When all the power contributions, which include higher order in $α_s$, higher helicities, higher twists in DA and etc., have been taken into account, it is expected that the hard contributions will fit the present experimental data well at the energy region where pQCD is applicable.
description: 22pages,4 figures. Phys.Rev. D70, 093013(2004) (in press)
The Impact Of Socio-Demographic Factors And Political Perceptions On Consumer Attitudes Towards Genetically Modified Foods: An Econometric Investigation
Creators: name: Antonopoulou, Lina
name: Papadas, Christos T.
name: Targoutzidis, Antonis
name: Antonopoulou, Lina
name: Papadas, Christos T.
name: Targoutzidis, Antonis
Publisher: name: Unknown
Year: 2009
Subjects: subject: Consumer/Household Economics
subject: Food Consumption/Nutrition/Food Safety
subject: Globalization
subject: political
subject: genetically modified food
subject: econometric

description: This survey-based paper investigates the impact of socio-demographic factors, along with political perceptions, as expressed by attitudes towards globalization, on consumer attitudes towards GM foods, in Greece. Different aspects of consumer attitudes regarding GM foods are examined, such as general preference, banning, labeling, intention to purchase them at a sufficiently low price, the nutritional category of food product and the proximity of the genetic modification to the final product. Econometric analysis using Logit and Probit models was conducted. Estimates clearly show that in general, attitudes towards GM foods are not affected by socio-demographic characteristics. However, political perceptions are a significant influential factor.
No partial erasure of quantum information
Creators: name: Pati, Arun K.
name: Sanders, Barry C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In complete erasure any arbitrary pure quantum state is transformed to a fixed pure state by irreversible operation. Here we ask if the process of partial erasure of quantum information is possible by general quantum operations, where partial erasure refers to reducing the dimension of the parameter space that specifies the quantum state. Here we prove that quantum information stored in qubits and qudits cannot be partially erased, even by irreversible operations. The no-flipping theorem, which rules out the existence of a universal NOT gate for an arbitrary qubit, emerges as a corollary to this theorem. The `no partial erasure' theorem is shown to apply to spin and bosonic coherent states, with the latter result showing that the `no partial erasure' theorem applies to continuous variable quantum information schemes as well. The no partial erasure theorem suggests an integrity principle that quantum information is indivisible.
description: Expanded version, 7 pages, no figure, Latex 2e. (In version 2 we had added a corollary that shows that the `no-splitting' theorem for quantum information presented in quant-ph/0503168 is implied by our `no-partial erasure' theorem.)
Probing Post-Newtonian Gravity near the Galactic Black Hole with Stellar Doppler Measurements
Creators: name: Zucker, Shay
name: Alexander, Tal
name: Gillessen, Stefan
name: Eisenhauer, Frank
name: Genzel, Reinhard
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Stars closely approaching the massive black hole in the center of the Galaxy provide a unique opportunity to probe post-Newtonian physics in a yet unexplored regime of celestial mechanics. Recent advances in infrared stellar spectroscopy allow the precise measurement of stellar Doppler shift curves and thereby the detection of beta-squared post-Newtonian effects (gravitational redshift in the black hole's potential and the transverse Doppler shift). We formulate a detection procedure in terms of a simplified post-Newtonian parametrization. We then use simulations to show that these effects can be decisively detected with existing instruments after about a decade of observations. We find that neglecting these effects can lead to statistically significant systematic errors in the derived black hole mass and distance.
description: 4 pages, 3 figures, submitted to The Astrophysical Journal Letters
DMFT reveals the non-Hermitian topology in heavy-fermion systems
Creators: name: Nagai, Yuki
name: Qi, Yang
name: Isobe, Hiroki
name: Kozii, Vladyslav
name: Fu, Liang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We find that heavy fermion systems can have bulk "Fermi arcs", with the use of the non-Hermitian topological theory. In an interacting electron system, the microscopic many-body Hamiltonian is Hermitian, but the one-body quasiparticle Hamiltonian is non-Hermitian due to the finite quasiparticle lifetime. We focus on heavy electron systems as a stage of finite lifetime quasiparticles with two lifetimes, since quasiparticle lifetimes for f-electrons and c-electrons should be different. Two lifetimes induce exceptional points (EPs) of the non-Hermitian quasiparticle Hamiltonian matrix in momentum space. The line connecting between two EPs characterizes the bulk Fermi arcs. With the use of the dynamical mean field theory (DMFT) calculation, we confirm our statement in Kondo insulators with a momentum-dependent hybridization in two-dimensions. We show that the concept of the EPs in the non-Hermitian quasiparticle Hamiltonian is one of powerful tools to predict new phenomena in strongly correlated electron systems.
description: 6 pages, 3 figures, supplemental materials (6 pages)
Agricultural Producer Support Policy in Iran and Selected Countries
Creators: name: Yazdani, Saeed
name: Vaezi, L.
name: Yazdani, Saeed
name: Vaezi, L.
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agricultural and Food Policy
subject: Iran
subject: Producers
subject: Support Policy
subject: PSE
subject: GSSE

description: Agricultural policies in Iran have aimed at achieving self-sufficiency in food productions through the government various policies. The aim of this paper is to examine the current level of protection which may exist in agricultural sector in Iran and other countries. The results indicate that the PSE in Iran is much higher than the OECD and is close to Japanese and Korean PSE percentage (i.e. 58 and 64 percent). The broadest indicator of support representing the sum of transfers to agricultural producers (PSE), expenditure for general services (GSSE), and direct budgetary transfers to consumers, reached 83 billion Dollars per year in 2001-2005 which is almost equivalent to 13.4 percent of Iran’s GDP in this period. This is much higher than the OECD average and suggests a relatively high burden of agricultural support on Iran’s economy.
Trade trends from 2000 to 2008 for agriculture, forestry and fisheries of the Western Cape
Creators: name: Jacobs, Elne
name: Punt, Cecilia
name: Jacobs, Elne
name: Punt, Cecilia
Publisher: name: Unknown
Year: 2009
Subjects: subject: International Relations/Trade
subject: General Trade
subject: Country and Industry Studies of Trade

description: This paper aims to identify trade trends for primary products from the Western Cape agricultural, forestry and fisheries sector for the period 2000 until 2008. Annual trade data was received from the South African Revenue Service (SARS). The postal code information were used to identify from which province exports were sent or for which province the imports were destined. The postal code provided is that of the exporter or importer, and thus does not reflect the final destination in South Africa of imports or the origin (province) of our exports. Traded goods are classified using the Harmonised System (HS) that is used internationally. Results indicate that in South Africa and the Western Cape, the value of total imports are more than total exports, but in the agricultural sector of both South Africa and the Western Cape exports still dominate, i.e. South Africa and the Western Cape are still net exporters of agricultural products. For the Western Cape horticultural products, especially fruits, are at the top of the list of agricultural exports. The two main export countries for horticultural products are the Netherlands and the United Kingdom. Agricultural imports to the Western Cape are mostly field crops such as wheat, rice and tobacco, mainly from Argentina, Thailand and the United States of America. The values of exports and imports of fisheries and forestry from 2000 to 2008 indicate that the value of fish trade varies over time and the main trading partners also changes notable every year. The value of forestry trade is more stable than fish trade and since 2004, the main export country was Vietnam, but the United States dominates for imports. Nominal values are reported.
Two-Loop QCD Corrections to the Heavy Quark Form Factors: Axial Vector Contributions
Creators: name: Bernreuther, W.
name: Bonciani, R.
name: Gehrmann, T.
name: Heinesch, R.
name: Leineweber, T.
name: Mastrolia, P.
name: Remiddi, E.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider the Z Q Qbar vertex to second order in the QCD coupling for an on-shell massive quark-antiquark pair and for arbitrary momentum transfer of the Z boson. We present closed analytic expressions for the two parity-violating form factors of that vertex at the two-loop level in QCD, excluding the contributions from triangle diagrams. These form factors are expressed in terms of 1-dimensional harmonic polylogarithms of maximum weight 4.
description: 57 pages, 5 figures. All the results in Section 6 of the paper are available in an electronic form in the file formulas.inc
An efficient Kinetic Monte Carlo to study analyte capture by a nanopore: Transients, boundary conditions and time-dependent fields
Creators: name: Qiao, Le
name: Ignacio, Maxime
name: Slater, Gary W.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: To better understand the capture process by a nanopore, we introduce an efficient Kinetic Monte Carlo (KMC) algorithm that can simulate long times and large system sizes by mapping the dynamic of a point-like particle in a 3D spherically symmetric system onto the 1D biased random walk. Our algorithm recovers the steady-state analytical solution and allows us to study time-dependent processes such as transients. Simulation results show that the steady-state depletion zone near pore is barely larger than the pore radius and narrows at higher field intensities; as a result, the time to reach steady-state is much smaller than the time required to empty a zone of the size of the capture radius $λ_e$. When the sample reservoir has a finite size, a second depletion region propagates inward from the outer wall, and the capture rate starts decreasing when it reaches the capture radius $λ_e$. We also note that the flatness of the electric field near the pore, which is often neglected, induces a traffic jam that can increase the transient time by several orders of magnitude. Finally, we propose a new proof-of-concept scheme to separate two analytes of the same mobility but different diffusion coefficients using time-varying fields.
South African trade in 2008, focusing on agriculture, forestry and fisheries
Creators: name: Jacobs, Elne
name: Punt, Cecilia
name: Jacobs, Elne
name: Punt, Cecilia
Publisher: name: Unknown
Year: 2010
Subjects: subject: International Relations/Trade
subject: General Trade
subject: Country and Industry Studies of Trade

description: This paper aims to identify trade trends for primary products from the South African agricultural, forestry and fisheries sector for 2008. Annual trade data was received from the South African Revenue Service (SARS). The postal code information were used to identify from which province exports were sent or for which province the imports were destined. The postal code provided is that of the exporter or importer, and thus does not necessarily reflect the final destination in South Africa of imports or the origin (province) of our exports. Traded goods are classified using the Harmonised System (HS) that is used internationally. Results indicate that in South Africa, the value of total imports are more than total exports, but in the agricultural sector of South Africa exports still dominate, i.e. South Africa is still a net exporter of agricultural products. The main importing countries for South Africa include Germany and China while the main exporting countries are United Kingdom followed by the United States of America. The top five agriculture, forestry and fisheries imports and exports for South Africa revealed that seed corn is imported most whilst citrus fruit is exported most. Provincial reviews also took a closer look at each province’s agriculture, forestry and fisheries sector. Nominal values are reported.
A Langevin analysis of fundamental noise limits in Coherent Anti-Stokes Raman Spectroscopy
Creators: name: Das, Kunal K.
name: Agarwal, G. S.
name: Golubev, Yu. M.
name: Scully, M. O.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We use a Langevin approach to analyze the quantum noise in Coherent Anti-Stokes Raman Spectroscopy (CARS) in several experimental scenarios: with continuous wave input fields acting simultaneously and with fast sequential pulsed lasers where one field scatters off the coherence generated by other fields; and for interactions within a cavity and in free space. In all the cases, the signal as well as the quantum noise due to spontaneous decay and decoherence in the medium are shown to be described by the same general expression. Our theory in particular shows that for short interaction times, the medium noise is not important and the efficiency is limited only by the intrinsic quantum nature of the photon. We obtain fully analytic results \emph{without} making an adiabatic approximation, the fluctuations of the medium and the fields are self solved consistently.
description: 12 pages, 1 figure
Atelier JNF 2025 - Anki, le logiciel open source qui permet de tout apprendre
Creators: name: Breton, Elise
Publisher: name: Zenodo
Year: 2025
Subjects: memorization
open source software

description: Atelier présenté lors des Journées nationales des Formateurs en bibliothèque à l'Université Paris Nanterre

30 janvier 2025 

Pour apprendre vos cours, vous stabilotiez vos feuilles ou bien vous faisiez des fiches ? Selon les scientifiques, ces méthodes sont loin d’être les plus efficaces pour apprendre. Anki est un logiciel open source qui sert d’assistant pour apprendre. Il repose sur deux techniques d’apprentissage efficaces : la répétition espacée (on revoit une connaissance de façon de plus en plus espacée) et l’autotest (on autoteste son souvenir de la connaissance). On intègre dans Anki les connaissances que l’on veut apprendre, et Anki va nous réinterroger à intervalles réguliers, en adaptant la fréquence des questions à notre vitesse d’apprentissage.C’est diablement efficace et vous allez regretter de ne pas l’avoir connu plus tôt et d’avoir perdu tout ce temps avec vos stabilos ! 

L’atelier sera composé d’une présentation des principes de répétition espacée et d’autotest, puis d’une présentation du logiciel Anki. Les participants seront ensuite amenés à pratiquer et à utiliser eux-mêmes le logiciel. On finira sur une partie réflexive sur les usages possibles de ce logiciel.
Additional file 1 of Antidepressants and movement disorders: a postmarketing study in the world pharmacovigilance database
Creators: name: Revet, Alexis
name: Montastruc, François
name: Roussin, Anne
name: Jean-Philippe Raynaud
name: Lapeyre-Mestre, Maryse
name: Nguyen, Thi Thu Ha
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: Pharmacology
subject: Biotechnology
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Supplementary file 1. Complementary tables. Supplementary Table 1. List of class of antidepressants adapted from WHO classification. Supplementary Table 2. List of movement disorders inducing drugs presented by subtype of movement disorder. Supplementary Table 3. List of drugs used to treat the different subtypes of movement disorder. Supplementary Tables 4. Results of the case/non-case analyses to rank the signal of the 9 selected movement disorders between different classes of class of antidepressants and between antidepressants. Supplementary Table 5. Sensitivity analyses for the antidepressants most frequently reported with the 9 subtypes of movement disorders among 58 antidepressants. For each of these antidepressants, the study period was counted from the year registering its first report in VigiBase® to 1 February, 2017.
System size resonance in an attractor neural network
Creators: name: de la Casa, M. A.
name: Korutcheva, E.
name: Parrondo, J. M. R.
name: de la Rubia, F. J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study the response of an attractor neural network, in the ferromagnetic phase, to an external, time-dependent stimulus, which drives the system periodically two different attractors. We demonstrate a non-trivial dependance of the system via a system size resonance, by showing a signal amplification maximum at a certain finite size.
description: 7 pages, 9 figures, submitted to Europhys. Lett
Searching for chiral logs in the static-light decay constant
Creators: name: UKQCD Collaboration
name: McNeile, C
name: Michael, C.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Using the clover fermion action in unquenched QCD with pion masses as low as 420 MeV, we look for evidence for chiral logs in the static-light decay constant. There is some evidence for a chiral log term, if the original static theory of Eichten and Hill is used. However, the more precise data from the static action of the ALPHA collaboration do not show any evidence for non-linear dependence of the static-light decay constant on the light quark mass. We make some comments on the connection between chiral perturbation theory for decay constants of the pion and static-light meson.
Bound States of Discrete Schroedinger Operators with Super-Critical Inverse Square Potentials
Creators: name: Damanik, David
name: Teschl, Gerald
Publisher: name: arXiv
Year: 2005
Subjects: subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 47B36, 81Q10

description: We consider discrete one-dimensional Schroedinger operators whose potentials decay asymptotically like an inverse square. In the super-critical case, where there are infinitely many discrete eigenvalues, we compute precise asymptotics of the number of eigenvalues below a given energy E as this energy tends to the bottom of the essential spectrum.
description: 4 pages
Emission measure distribution in loops impulsively heated at the foot-points
Creators: name: Testa, Paola
name: Peres, Giovanni
name: Reale, Fabio
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This work is prompted by the evidence of sharply peaked emission measure distributions in active stars, and by the claims of isothermal loops in solar coronal observations, at variance with the predictions of hydrostatic loop models with constant cross-section and uniform heating. We address the problem with loops heated at the foot-points. Since steady heating does not allow static loop models solutions, we explore whether pulse-heated loops can exist and appear as steady loops, on a time average. We simulate pulse-heated loops, using the Palermo-Harvard 1-D hydrodynamic code, for different initial conditions corresponding to typical coronal temperatures of stars ranging from intermediate to active ($T \sim 3$--$10 \times 10^6$ K). We find long-lived quasi-steady solutions even for heating concentrated at the foot-points over a spatial region of the order of $\sim 1/5$ of the loop half length and broader.These solutions yield an emission measure distribution with a peak at high temperature, and the cool side of the peak is as steep as $\sim T^{5}$, in contrast to the usual $\sim T^{3/2}$ of hydrostatic models with constant cross-section and uniform heating. Such peaks are similar to those found in the emission measure distribution of active stars around $10^7$ K.
description: 9 pages, 6 figures, accepted for publication in The Astrophysical Journal
Additional file 4 of Multi-omics analysis delineates the distinct functions of sub-cellular acetyl-CoA pools in Toxoplasma gondii
Creators: name: Kloehn, Joachim
name: Oppenheim, Rebecca D.
name: Ghizal Siddiqui
name: Pieter-Jan De Bock
name: Dogga, Sunil Kumar
name: Yohann Coute
name: Mohamed-Ali Hakimi
name: Creek, Darren J.
name: Soldati-Favre, Dominique
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 4 : Figure S3. Stable isotope labelling to elucidate the consequences of the loss of ACL and/or ACS. PDF image showing (a) Fractional 13C-labelling from U-13C-glucose in glycolysis and TCA-cycle intermediates comparing RH, ΔACL iΔACS or ΔACL/iΔACS parasites. The inducible knock-down parasites were grown in the absence of Shield-1 for 16 hours prior to analysis. (b) Fractional 13C-labelling from U-13C-acetate in glycolysis and TCA-cycle intermediates. (c-f) Mass isotopologue abundance of selected metabolites following labelling with U-13C-acetate: citrate (c), ceramide Cer(36:1) (d), phosphatidylserine PS(36:2) (e) and PS(38:2) (f). Legend in c-e as in f. Abbreviations: TCA: tricarboxylic acid; ACL: ATP-citrate lyase; ACS: acetyl-CoA synthetase.
Additional file 4 of School-related physical activity interventions and mental health among children: a systematic review and meta-analysis
Creators: name: Andermo, Susanne
name: Hallgren, Mats
name: Thi-Thuy-Dung Nguyen
name: Jonsson, Sofie
name: Petersen, Solveig
name: Friberg, Marita
name: Romqvist, Anja
name: Stubbs, Brendon
name: Elinder, Liselotte Schäfer
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 4. Online resource 4. Outcomes and instruments.
Insights into nature of a magnetization plateau of 3$d$-4$f$ coordination polymer [Dy$_2$Cu$_2$]$_n$ from a spin-1/2 Ising-Heisenberg orthogonal-dimer chain
Creators: name: Strečka, J.
name: Gálisová, L.
name: Verkholyak, T.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The ground state and magnetization process of an exactly solved spin-$1/2$ Ising-Heisenberg orthogonal-dimer chain with two different gyromagnetic factors of the Ising and Heisenberg spins are investigated in detail. It is shown that the investigated quantum spin chain exhibits up to seven possible ground states depending on a mutual interplay of the magnetic field, intra- and inter-dimer coupling constants. More specifically, the frustrated and modulated quantum antiferromagnetic phases are responsible in zero-temperature magnetization curves for a zero magnetization plateau. The intermediate 1/11- and 5/11-plateaus emerge due to the frustrated and modulated quantum ferrimagnetic phases, while the intermediate 9/11- and 10/11-plateaus can be attributed to the quantum and classical ferrimagnetic phases. It is conjectured that the magnetization plateau experimentally observed in a high-field magnetization curve of 3$d$-4$f$ heterobimetallic coordination polymer [\{Dy(hfac)$_2$(CH$_3$OH)\}$_2$\{Cu(dmg)(Hdmg)\}$_2$]$_n$ (H$_2$dmg $=$ dimethylglyoxime; Hhfac $=$ 1,1,1,5,5,5-hexafluoropentane-2,4-dione) could be attributed to the classical and quantum ferrimagnetic phases.
description: 11 pages, 4 figures
Additional file 5 of Multi-omics analysis delineates the distinct functions of sub-cellular acetyl-CoA pools in Toxoplasma gondii
Creators: name: Kloehn, Joachim
name: Oppenheim, Rebecca D.
name: Ghizal Siddiqui
name: Pieter-Jan De Bock
name: Dogga, Sunil Kumar
name: Yohann Coute
name: Mohamed-Ali Hakimi
name: Creek, Darren J.
name: Soldati-Favre, Dominique
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 5 : Figure S4. Acetylome analysis of ΔACL/iΔACS and ΔBCKDH parasites. PDF image of the (a) Western blot analysis representing the total lysine acetylation profile of ΔACL/iΔACS parasites. ΔACL/iΔACS parasites were cultured in the absence of Shield-1 for 16 hours prior to harvest and analysis. The blot was probed with α-acetyl-lysine antibody for the total lysate and α-actin as loading control. (b) Western blot analysis representing the total lysine acetylation profile of ΔBCKDH parasites. The blot was probed with α-acetyl-lysine antibody for the total lysate and α-actin as loading control. (c) The localisation of all differentially acetylated proteins in ΔACL/iΔACS parasites is shown. Sub-cellular localisation of differentially acetylated proteins and enrichment was determined using the hyperplexed Localisation of Organelle Proteins by Isotopic Tagging (hyperLOPIT) data available under https://proteome.shinyapps.io/toxolopittzex/. (d) The localisation of differentially acetylated proteins in ΔBCKDH parasites was determined as above and is displayed. (e) Proteins identified as differentially acetylated in ΔACL/iΔACS parasites were analysed using GO-enrichment R-package topGO to identify enrichment in biological processes using the relatively small subset of acetylated proteins as background. Enrichment was 1.3- (GO:0044267 – cellular protein metabolic process) and 1.9-fold (GO:0051276 – chromosome organization). Statistically significant enrichment was assessed by Fisher’s exact test (p-value <0.05). (f) Proteins identified as differentially acetylated in ΔBCKDH parasites were analysed using GO-enrichment R-package topGO to identify enrichment in biological processes using the relatively small subset of acetylated proteins as background. Enrichment ranged from 2.3- (GO:0072350 – tricarboxylic acid metabolic process) to 1.6-fold (all other enriched biological processes). Statistically significant enrichment was assessed by Fisher’s exact test (p-value <0.05). Abbreviations: BCKDH: branched-chain α-keto acid dehydrogenase-complex; ACL: ATP-citrate lyase; ACS: acetyl-CoA synthetase; PM: plasma membrane; IMC: inner membrane complex; ER: endoplasmic reticulum.
Magnetorotational instability in protoplanetary discs
Creators: name: Salmeron, Raquel
name: Wardle, Mark
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the linear growth and vertical structure of the magnetorotational instability (MRI) in weakly ionised, stratified accretion discs. The magnetic field is initially vertical and dust grains are assumed to have settled towards the midplane, so charges are carried by electrons and ions only. Solutions are obtained at representative radial locations from the central protostar for different choices of the initial magnetic field strength, sources of ionisation, and disc surface density. The MRI is active over a wide range of magnetic field strengths and fluid conditions in low conductivity discs. For the minimum-mass solar nebula model, incorporating cosmic ray ionisation, perturbations grow at 1 AU for B < 8 G. For a significant subset of these strengths (0.2 - 5 G), the growth rate is of order the ideal MHD rate (0.75 Omega). Similarly, when cosmic rays are assumed to be excluded from the disc by the winds emitted by the magnetically active protostar, unstable modes grow at this radius for B less than about 2 G. This study shows that, despite the low magnetic coupling, the magnetic field is dynamically important for a large range of fluid conditions and field strengths in protostellar discs. Hall diffusion largely determines the structure and growth rate of these perturbations for all studied radii. At radii of order 1 AU, in particular, it is crucial to incorporate the full conductivity tensor in studies of the dynamics of astrophysical discs. (Abridged)
description: 26 pages, 15 figures, submitted to MNRAS
Solving coupled Lane-Emden equations by Green's function and decomposition technique
Creators: name: Singh, Randhir
Publisher: name: arXiv
Year: 2020
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: In this paper, the Green's function and decomposition technique is proposed for solving the coupled Lane-Emden equations. This approach depends on constructing Green's function before establishing the recursive scheme for the series solution. Unlike, standard Adomian decomposition method, the present method avoids solving a sequence of transcendental equations for the undetermined coefficients. Convergence and error estimation is provided. Three examples of coupled Lane-Emden equations are considered to demonstrate the accuracy of the current algorithm.
description: 17 pages
Additional file 5 of School-related physical activity interventions and mental health among children: a systematic review and meta-analysis
Creators: name: Andermo, Susanne
name: Hallgren, Mats
name: Thi-Thuy-Dung Nguyen
name: Jonsson, Sofie
name: Petersen, Solveig
name: Friberg, Marita
name: Romqvist, Anja
name: Stubbs, Brendon
name: Elinder, Liselotte Schäfer
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 5. Online resource 5. Quality assessment.
Compiling National, Multiregional and Regional Social Accounting Matrices for South Africa
Creators: name: Van Schoor, Melt
name: Punt, Cecilia
name: McDonald, Scott
name: Van Schoor, Melt
name: Punt, Cecilia
name: McDonald, Scott
Publisher: name: Unknown
Year: 2006
Subjects: subject: Research Methods/ Statistical Methods
subject: General Equilibrium and Disequilibrium

description: This report provides a technical description of the development of a set of Social Accounting Matrices (SAMs) for South Africa for the base year 2000. The set of SAMs consists of a national SAM, four regional SAMs and a multiregional SAM. The point of departure is a National Accounting Matrix (NAM) for South Africa. The report discusses the structure of each type of SAM, the main data sources that were used and the way in which different sets of data were organised for inclusion in the SAM. Entropy techniques were used to estimate missing information in order to derive complete and consistent SAMs. The theory and practical implementation of the entropy techniques are discussed in this report. The large number of accounts included in the SAMs warranted that the entropy estimation be introduced in different phases in order to ease the complexity of the problem. The SAMs all contain substantial detail on the agricultural industry. The inclusion of various different tax accounts allows for fiscal policy analysis. Detailed factor and household accounts capture the functional distribution of income to households, making the SAMs suitable to analyse the effects of policy changes on income redistribution using Computable General Equilibrium (CGE) models and microsimulation techniques.
Lagrangian torus fibration of quintic Calabi-Yau hypersurfaces II: Technical results on gradient flow construction
Creators: name: Ruan, Wei-Dong
Publisher: name: arXiv
Year: 2004
Subjects: subject: Symplectic Geometry (math.SG)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: This paper provides the technical details of gradient flow construction and related problems, which are essential for our construction of Lagrangian torus fibrations for Calabi-Yau hypersurfaces.
description: 81 pages. Posting of an earlier paper
The welfare impact of targeted transfers to poor households
Creators: name: Pauw, Kalie
name: Pauw, Kalie
Publisher: name: Unknown
Year: 2005
Subjects: subject: Consumer/Household Economics
subject: Research Methods/ Statistical Methods
subject: Computable General Equilibrium Models
subject: Government Expenditures and Welfare Programs

description: Despite widespread poverty there is general consensus among policymakers about the preference of targeted welfare transfers over non-targeted grants due to the budgetary implications of the latter. Targeting, however, adds to the administrative complexities of disbursing welfare grants, thus introducing a cost dimension that is as yet largely unexplored. In this paper a series of targeted transfer simulations are run in a general equilibrium model calibrated with a Social Accounting Matrix for South Africa. Deficit financing and tax replacement policies are considered as financing options, assuming a hypothetical budget constraint of R15 billion. The effectiveness of broad targeting and a low per capita transfer value versus narrow targeting and high transfer value in terms of reducing poverty and inequality is explored. Results on per capita expenditure changes (disposable income) from the general equilibrium model are extracted and fed into a micro-level survey-based module that calculates poverty and inequality at the individual level. Preliminary results suggest that the poverty impact is small: the poverty headcount falls from about 49% in the base to approximately 46% in the simulations. However, for some household groups poverty may actually increase due to the increases tax burden, also on households that are close to the poverty line. This highlights the importance of ensuring an equitable distribution of the increased tax burden. Inequality also declines marginally in all the simulations considered, mainly because poor households are targeted while non-poor households typically carry a larger share of the increased tax burden. In as far as the effectiveness of broad versus narrow targeting is concerned the results suggest that narrower targeting generally implies greater reductions in poverty and inequality, although it depends crucially on how far the transfer recipients are located from the poverty line.
Eucharis adscendens (Fabricius, 1787) (Hymenoptera: Eucharitidae) w południowo-zachodniej Polsce
Creators: name: Grzegorz Lewek
name: Jarosław Regner
name: Andrzej Skiba
name: Marcin Kadej
Publisher: name: Zenodo
Year: 2025
Subjects: Eucharis adscendens, ant parasitoid, new record, chalcid wasps, faunisctic, Poland

description: Eucharis adscendens (Fabricius, 1787) (Hymenoptera: Eucharitidae) from south-western Poland.Eucharis adscendens (Fabricius, 1787) is a rarely recorded species of chalcid wasps (Hymenoptera: Eucharitidae) parasitizing ants in Europe. This species was first reported in Poland in 1981 from the vicinity of Warsaw. The authors present the first documented record of E. adscendens from south-western Poland.
Experimental and finite element analysis of a damaged reinforced concrete bridge strengthened with sprayed glass fiber reinforced polymers
Creators: name: Mortazavi, Seyedali Reza
Publisher: name: University of British Columbia
Year: 2009

description: A vast number of bridges throughout North America are deteriorated or distressed to such a degree that structural strengthening and rehabilitation of the bridge or lowering the allowable truck loading on the bridge by load posting has become necessary to extend the service life of the bridge. One of the most recent techniques of strengthening these type of bridges is placement of Sprayed Glass Fiber Reinforced Polymers. Safe Bridge is the first bridge in the world that was retrofitted by Sprayed Fiber Reinforced Polymers. This paper presents the experimental and finite element analysis of the Safe Bridge prior to and after the application of Sprayed GFRP. The truck loading was applied to the bridge model at different locations, as in an actual bridge test. The nonlinear analyses were carried out by ANSYS. A good agreement between model and tests was obtained. Thus, FEM models can be effectively utilized for analyzing and designing strengthening strategies.
The Impact of Increasing Excise Duties on the Economy
Creators: name: Reynolds, Sanri
name: Reynolds, Sanri
Publisher: name: Unknown
Year: 2006
Subjects: subject: Research Methods/ Statistical Methods
subject: Computable General Equilibrium Models

description: Excise duties have increased considerably over the past few years, raising concerns on the effect this may have on the economy. However, these increases are welcomed by those concerned about the costs of externalities associated with excessive alcohol consumption, including productivity loss, foetal alcohol syndrome, liver cirrhosis, traffic accidents, etc. This study contains results on the impact of a 10% increase in excise duties on the South African economy, using a static computable general equilibrium model. The impact on gross domestic product, trade and prices, as well as changes in the factor market and the welfare of households of the Northern and Western Cape (the two major wine producing provinces in the country) are analysed. The results indicate that the majority of households in South Africa will be worse off in terms of real consumption expenditure and all households in the Northern and Western Cape will lose out. In addition, lower income households will lose out most, as they spend a larger share of their budget on beverages and tobacco. However, these results do not capture the benefits from any reduction in negative externalities following the decline in demand due to a price increase in alcoholic beverages, and hence are likely to represent an upper bound of any welfare losses. Additional analyses indicate that the gain in productivity required to offset the negative impact of increasing excise duties is rather small.
Comparison of Modeling SPARC spiral galaxies' rotation curves: halo models vs MOND
Creators: name: Wang, Lin
name: Chen, Da-Ming
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate a sub-sample of the rotation curves consisting of 45 HSB non-bulgy spiral galaxies selected from SPARC (Spitzer Photometry and Accurate Rotation Curves) database by using two dark halo models (NFW and Burkert) and MOdified Newtonian Dynamics (MOND) theory. Among these three models, the core-dominated Burkert halo model provides a better description of the observed data ($χ_ν^2$ = 0.33) than Navarro, Frenk and White (NFW, $χ_ν^2$= 0.45) and MOND model ($χ_ν^2$ = 0.58). So our results show that, for dark halo models, the selected 45 HSB non-bulgy spiral galaxies prefer a cored density profile to the cuspy one (NFW); We also positively find that there is a correlation between $ρ_0$ and $r_0$ in Burkert model. For MOND fits, when we take $a_0$ as a free parameter, there is no obvious correlation between $a_0$ and disk central surface brightness at 3.6 $μm$ of these HSB spiral galaxies, which is in line with the basic assumption of MOND that $a_0$ should be a universal constant. Interestingly, our fittings gives $a_0$ an average value of $(0.74 \pm 0.45) \times 10^{- 8}\rm {cm\ s^{- 2}}$ if we exclude the three highest values in the sample, which is smaller than the standard value ($1.21 \times 10^{-8}\rm {cm\ s^{- 2}}$).
description: Significant modifications are needed
Increasing power in the analysis of responder endpoints in rheumatology: a software tutorial.
Creators: name: McMenamin, Martina
name: Grayling, Michael J
name: Berglind, Anna
name: Wason, James MS
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: Software
Epidemiology and public health
Composite responder endpoint
Augmented binary method
Systemic lupus erythematosus
Shiny

description: Funder: NIHR Cambridge Biomedical Research Centre
description: BACKGROUND: Composite responder endpoints feature frequently in rheumatology due to the multifaceted nature of many of these conditions. Current analysis methods used to analyse these endpoints discard much of the data used to classify patients as responders and are therefore highly inefficient, resulting in low power. We highlight a novel augmented methodology that uses more of the information available to improve the precision of reported treatment effects. Since these methods are more challenging to implement, we developed free, user-friendly software available in a web-based interface and as R packages. The software consists of two programs: one that supports the analysis of responder endpoints; the second that facilitates sample size estimation. We demonstrate the use of the software to conduct the analysis with both the augmented and standard analysis method using the MUSE study, a phase IIb trial in patients with systemic lupus erythematosus. RESULTS: The software outputs similar point estimates with smaller confidence intervals for the odds ratio, risk ratio and risk difference estimators using the augmented approach. The sample size required in each arm for a future trial using the novel approach based on the MUSE data is 50 versus 135 for the standard method, translating to a reduction in required sample size of approximately 63%. CONCLUSIONS: We encourage trialists to use the software demonstrated to implement the augmented methodology in future studies to improve efficiency.