cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Moduli Stabilising in Heterotic Nearly Kähler Compactifications
Creators: name: Klaput, Michael
name: Lukas, Andre
name: Matti, Cyril
name: Svanes, Eirik E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study heterotic string compactifications on nearly Kähler homogeneous spaces, including the gauge field effects which arise at order α'. Using Abelian gauge fields, we are able to solve the Bianchi identity and supersymmetry conditions to this order. The four-dimensional external space-time consists of a domain wall solution with moduli fields varying along the transverse direction. We find that the inclusion of α' corrections improves the moduli stabilization features of this solution. In this case, one of the dilaton and the volume modulus asymptotes to a constant value away from the domain wall. It is further shown that the inclusion of non-perturbative effects can stabilize the remaining modulus and "lift" the domain wall to an AdS vacuum. The coset SU(3)/U(1)^2 is used as an explicit example to demonstrate the validity of this AdS vacuum. Our results show that heterotic nearly Kähler compactifications can lead to maximally symmetric four-dimensional space-times at the non-perturbative level.
description: 45 pages, LaTex, 3 pdf figures, References Added
Competition between spin fluctuations in Ca$_{2-x}$Sr$_{x}$RuO$_{4}$ around $x=0.5$
Creators: name: Arakawa, Naoya
name: Ogata, Masao
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the static susceptibilities for charge and spin sectors in paramagnetic states for Ca$_{2-x}$Sr$_{x}$RuO$_{4}$ in $0.5\leq x \leq 2$ within random phase approximation on the basis of an effective Ru $t_{2g}$ orbital Hubbard model. We find that several modes of spin fluctuation around $\boldq=(0,0)$ and $\boldq\sim(0.797π,0)$ are strongly enhanced for the model of $x=0.5$. This enhancement arises from the increase of the corresponding susceptibilities for the $d_{xy}$ orbital due to the rotation-induced modifications of the electronic structure for this orbital (i.e., the flattening of the bandwidth and the increase of the density of state near the Fermi level). We also find that the ferromagnetic spin fluctuation becomes stronger for a special model than for the model of $x=0.5$, while the competition between the modes of spin fluctuation at $\boldq=(0,0)$ and around $\boldq\sim (π,0)$ is weaker for the special model; in this special model, the van Hove singularity (vHs) for the $d_{xy}$ orbital is located on the Fermi level. These results indicate that the location of the vHs for the $d_{xy}$ orbital, which is controlled by substitution of Ca for Sr, is a parameter to control this competition. We propose that the spin fluctuations for the $d_{xy}$ orbital around $\boldq=(0,0)$ and $\boldq\sim (π,0)$ play an important role in the electronic states around $x=0.5$ other than the criticality approaching the usual Mott transition where all electrons are localized.
description: 12 pages, 9 figures, accepted for publication in Phys. Rev. B
The phase structure of black D1/D5 (F/NS5) system in canonical ensemble
Creators: name: Lu, J. X.
name: Wei, Ran
name: Xu, Jianfei
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper, we explore means which can be used to change qualitatively the phase structure of charged black systems. For this, we consider a system of black D1/D5 (or its S-dual F/NS5). We find that the delocalized charged black D-strings (F-strings) alone share the same phase structure as the charged black D5 branes (NS5-branes), having no van der Waals-Maxwell liquid-gas type. However, when the two are combined to form D1/D5 (F/NS5), the resulting phase diagram has been changed dramatically to a richer one, containing now the above liquid-gas type. The effect of adding the charged D-strings (F-strings) on the phase structure can also be effectively described as a slight increase of the transverse dimensions to the original D5 (NS5). This may be viewed as a connection between a brane charge and a fraction of spatial dimension at least in a thermodynamical sense.
description: 31 pages, 3 Figures, 2 Tables, minor corrections, version published in JHEP
The Effects of Radial Migration on the Vertical Structure of Galactic Discs
Creators: name: Roškar, Rok
name: Debattista, Victor P.
name: Loebman, Sarah R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present evidence that isolated growing discs, subject to internal spiral perturbations, thicken due to both heating \emph{and} radial migration. We show this by demonstrating that the thickness and vertical velocity dispersions of coeval stars depend on their age as well as the change in their radii. While the disc thickens due to internal processes, we find that this induces only a minor amount of flaring. We further demonstrate the consequences of such thickening on the structural properties of stellar populations and find that they qualitatively agree with recent studies of the Milky Way disc.
description: revised version, accepted for publication
title: Bericht der Römisch-Germanischen Kommission, Bd. 31,1 1941(1942): Bericht der Römisch-Germanischen Kommission
title: Bd. 31,1 1941(1942): Bericht der Römisch-Germanischen Kommission
titleType: AlternativeTitle
Creators: name: Bericht Der Römisch-Germanischen Kommission
Publisher: name: Bericht der Römisch-Germanischen Kommission
Year: 2017

description: Titel
Inhaltsverzeichnis
Bericht über die Tätigkeit der Römisch-Germanischen Kommission vom 1. April 1941 bis 31. März 1942...1-4
Die germanischen Grabfunde des frühen Mittelalters zwischen mittlerer Seine und Loiremündung...5-173
Schriftenverzeichnis von Peter Goessler...175-197
Current-phase relation for Josephson effect through helical metal
Creators: name: Olund, Christopher T.
name: Zhao, Erhai
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Josephson junctions fabricated on the surface of three-dimensional topological insulators (TI) show a few unusual properties distinct from conventional Josephson junctions. In these devices, the Josephson coupling and the supercurrent are mediated by helical metal, the two-dimensional surface of the TI. A line junction of this kind is known to support Andreev bound states at zero energy for phase bias π, and consequently the so-called fractional ac Josephson effect. Motivated by recent experiments on TI-based Josephson junctions, here we describe a convenient algorithm to compute the bound state spectrum and the current-phase relation for junctions with finite length and width. We present analytical results for the bound state spectrum, and discuss the dependence of the current-phase relation on the length and width of the junction, the chemical potential of the helical metal, and temperature. A thorough understanding of the current-phase relation may help in designing topological superconducting qubits and manipulating Majorana fermions.
Extracting joint weak values from two-dimensional spatial displacements
Creators: name: Kobayashi, Hirokazu
name: Puentes, Graciana
name: Shikano, Yutaka
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The joint weak value is a counterfactual quantity related to quantum correlations and quantum dynamics, which can be retrieved via weak measurements, as initiated by Aharonov and colleagues. In this Rapid Communication, we provide a full analytical extension of the method described by Puentes et al. [Phys. Rev. Lett. 109, 040401 (2012)], to extract the joint weak values of single-particle operators from two-dimensional spatial displacements of Laguerre-Gauss probe states, for the case of azimuthal index |l|>1. This method has a statistical advantage over previous ones since information about the conjugate observable, i.e., the momentum displacement of the probe, is not required. Moreover, we demonstrate that under certain conditions, the joint weak value can be extracted directly from spatial displacements without any additional data processing.
description: 4 pages, no figures
Fermionic and bosonic ac conductivities at strong disorder
Creators: name: Syzranov, S. V.
name: Yevtushenko, O. M.
name: Efetov, K. B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study the ac conduction in a system of fermions or bosons strongly localised in a disordered array of sites with short-range interactions at frequencies larger than the intersite tunnelling but smaller than the characteristic fluctuation of the on-site energy. While the main contribution $σ_0(ω)$ to the conductivity comes from local dipole-type excitations on close pairs of sites, coherent processes on three or more sites lead to an interference correction $σ_1(ω)$, which depends on the statistics of the charge carriers and can be suppressed by magnetic field. For bosons the correction is always positive, while for fermions it can be positive or negative depending on whether the conduction is dominated by effective single-particle or single-hole processes. We calculate the conductivity explicitly assuming a constant density of states of single-site excitations. Independently of the statistics, $σ_0(ω)=const$. For bosons $σ_1(ω)\propto \log(C/ω)$. For fermions $σ_1(ω)\propto\log[\max(A,ω)/ω]-\log[\max(B,ω)/ω]$, where the first and the second term are respectively the particle and hole contributions, $A$ and $B$ being the particle and hole energy cutoffs. The ac magnetoresistance has the same sign as $σ_1(ω)$.
description: 5 pages
Frame Transformations of Gravitational Theories
Creators: name: Calmet, Xavier
name: Yang, Ting-Cheng
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We show how to map gravitational theories formulated in the Jordan frame to the Einstein frame at the quantum field theoretical level considering quantum fields in curved space-time. As an example, we consider gravitational theories in the Jordan frame of the type $F(ϕ,\, R)=f(ϕ)\, R-V(ϕ)$ and perform the map to the Einstein frame. Our results can easily be extended to any gravitational theory. We consider the Higgs inflation model as an application of our results.
description: 13 pages
Phenotypic zinc resistance does not correlate with antimicrobial multi-resistance in fecal E. coli isolates of piglets
Creators: name: Ghazisaeedi, Fereshteh
name: Ciesinski, L.
name: Bednorz, C.
name: Johanns, V.
name: Pieper, L.
name: Tedin, K.
name: Wieler, L. H.
name: Günther, Sebastian
Publisher: name: Freie Universität Berlin
Year: 2020
Subjects: subject: antimicrobial resistance
subject: zinc
subject: co-selection
subject: E. coli
subject: feed supplementation
subject: pigs
subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::579 Mikroorganismen, Pilze, Algen

description: Background Following the ban on antimicrobial usage for growth promotion in animal husbandry in the EU, non-antimicrobial agents including heavy metal ions (e.g. zinc and copper), prebiotics or probiotics have been suggested as alternatives. Zinc has extensively been used in pig farming, particularly during weaning of piglets to improve animal health and growth rates. Recent studies, however, have suggested that high dietary zinc feeding during weaning of piglets increases the proportion of multi-drug resistant E. coli in the gut, contraindicating the appropriateness of zinc as an alternative. The underlying mechanisms of zinc effects on resistant bacteria remains unclear, but co-selection processes could be involved. In this study, we determined whether E. coli isolates from intestinal contents of piglets that had been supplemented with high concentrations of zinc acquired a higher tolerance towards zinc, and whether multi-drug resistant isolates tolerated higher zinc concentrations. In addition, we compared phenotypic zinc and copper resistance of E. coli isolates for possible correlation between phenotypic resistance/tolerance to different bivalent ionic metals. Results We screened phenotypic zinc/copper tolerance of 210 isolates (including antimicrobial resistant, multi-drug resistant, and non-resistant E. coli) selected from two, independent zinc-feeding animal trials by determining a zinc/copper minimal inhibitory concentration (Merlin, Bornheim-Hersel, Germany). In both trials, groups of piglets were supplemented either with high dietary zinc (> 2000 ppm) or control (50–70 ppm, background) concentrations. Our observations showed that high concentration zinc exposure did not have an effect on either zinc or copper phenotypic tolerance of E. coli isolates from the animals. No significant association was found between antimicrobial resistance and phenotypic zinc/copper tolerance of the same isolates. Conclusion Our findings argue against a co-selection mechanism of antimicrobial drug-resistance and zinc tolerance after dietary zinc supplementation in weaning piglets. An explanation for an increase in multi-drug resistant isolates from piglets with high zinc dietary feeding could be that resistant bacteria to antimicrobial agents are more persistent to stresses such as zinc or copper exposure.
Volume inequalities and additive maps of convex bodies
Creators: name: Schuster, Franz E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Metric Geometry (math.MG)
subject: Differential Geometry (math.DG)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 52A40, 52A39

description: Analogues of the classical inequalities from the Brunn-Minkowski theory for rotation intertwining additive maps of convex bodies are developed. Analogues are also proved of inequalities from the dual Brunn-Minkowski theory for intertwining additive maps of star bodies. These inequalities provide generalizations of results for projection and intersection bodies. As a corollary, a new Brunn-Minkowski inequality is obtained for the volume of polar projection bodies.
title: Bericht der Römisch-Germanischen Kommission, Bd. 36 1955(1956): Bericht der Römisch-Germanischen Kommission
title: Bd. 36 1955(1956): Bericht der Römisch-Germanischen Kommission
titleType: AlternativeTitle
Creators: name: Bericht Der Römisch-Germanischen Kommission
Publisher: name: Bericht der Römisch-Germanischen Kommission
Year: 2018

description: Titel
Inhaltsverzeichnis
Zu den Tierknochen aus neolithischen Siedlungen Thessaliens...1-51
Eine Einführung in die Geschichte der bronzenen Griffzungenschwerter in Süddeutschland und den angrenzenden Gebieten...52-155
Die Alsengemmen...156-222
Bericht über die Tätigkeit der Römisch-Germanischen Kommission vom 1.4.1955 bis 31.3.1956...223-232
A REPÚBLICA QUE NOS FALTA
Creators: name: Santana, José Cláudio Pavão
Publisher: name: Zenodo - Cadernos da Pena do Pavao
Year: 2023

description: Ano 07 – n. 18/2019
República, a "coisa de todos", a "coisa de ninguém", os deveres dos outros. Estes são alguns dos sentimentos que revelam compreensões arrevesaras desse sistema de governo que hoje completa 130 anos no Brasil.
Evidence for Superlattice Dirac Points and Space-dependent Fermi Velocity in Corrugated Graphene Monolayer
Creators: name: Yan, Hui
name: Chu, Zhao-Dong
name: Yan, Wei
name: Liu, Mengxi
name: Meng, Lan
name: Yang, Mudan
name: Fan, Yide
name: Wang, Jiang
name: Dou, Rui-Fen
name: Zhang, Yanfeng
name: Liu, Zhongfan
name: Nie, Jia-Cai
name: He, Lin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Recent studies show that periodic potentials can generate superlattice Dirac points at energies in graphene (is the Fermi velocity of graphene and G is the reciprocal superlattice vector). Here, we perform scanning tunneling microscopy and spectroscopy studies of a corrugated graphene monolayer on Rh foil. We show that the quasi-periodic ripples of nanometer wavelength in the corrugated graphene give rise to weak one-dimensional (1D) electronic potentials and thereby lead to the emergence of the superlattice Dirac points. The position of the superlattice Dirac point is space-dependent and shows a wide distribution of values. We demonstrated that the space-dependent superlattice Dirac points is closely related to the space-dependent Fermi velocity, which may arise from the effect of the local strain and the strong electron-electron interaction in the corrugated graphene.
description: 4figures
Charge-$2e$ Skyrmion condensate in a hidden order state
Creators: name: Hsu, Chen-Hsuan
name: Chakravarty, Sudip
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: A higher angular momentum ($\ell =2$) $d$-density wave, a mixed triplet and a singlet, interestingly, admits skyrmionic textures. The Skyrmions carry charge $2e$ and can condense into a spin-singlet s-wave superconducting state. In addition, a charge current can be induced by a time-dependent inhomogeneous spin texture, leading to quantized charge pumping. The quantum phase transition between this mixed triplet $d$-density wave and skyrmionic superconducting condensate likely leads to deconfined quantum critical points. We suggest connections of this exotic state to electronic materials that are strongly correlated, such as the heavy fermion $\mathrm{URu_{2}Si_{2}}$. At the very least, we provide a concrete example in which topological order and broken symmetry are intertwined, which can give rise to non-BCS superconductivity.
description: 11 pages, added a new appendix for the derivation of the non-linear sigma model
An oscillatory plug flow photoreactor facilitates semi-heterogeneous dual nickel/carbon nitride photocatalytic C–N couplings
Creators: name: Rosso, Cristian
name: Gisbertz, Sebastian
name: Williams, Jason D.
name: Gemoets, Hannes P. L.
name: Debrouwer, Wouter
name: Pieber, Bartholomäus
name: Kappe, C. Oliver
Publisher: name: Freie Universität Berlin
Year: 2020
Subjects: subject: photocatalytic C–N couplings
subject: plug flow photoreactor
subject: dual nickel/carbon nitride
subject: 500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete Wissenschaften

description: Carbon nitride materials have emerged as an efficient and sustainable class of heterogeneous photocatalysts, particularly when paired with nickel in dual catalytic cross-coupling reactions. Performing these transformations on larger scales using a continuous process is difficult due to the problems associated with handling solids in flow. By combining an oscillatory pump with a microstructured plug flow photoreactor, a stable suspension of the photocatalyst can be maintained, circumventing clogging of the reactor channels. Through careful tuning of the oscillator properties, the residence time distribution (RTD) was optimized, whilst maintaining a stable catalyst suspension. Short residence times (20 min) were achieved using optimized conditions and the recyclability of the photocatalyst was demonstrated over 10 cycles with no loss of activity. During a stable 4.5 hour scale-out demonstration, the model substrate could be isolated on 12 g scale (90% yield, 2.67 g h−1). Moreover, the method was applied for the gram scale synthesis of an intermediate of the active pharmaceutical ingredient tetracaine.
A QUESTÃO É...TOP?
Creators: name: Santana, José Cláudio Pavão
Publisher: name: Zenodo - Cadernos da Pena do Pavao
Year: 2023

description: Ano 07 – n. 20/2019
Lembro quando os discursos falavam quase sempre (para não dizer, geralmente) em "a nível de". Era um despropósito só. "A nível de" virou um mantra entre intelectuais, professores, estudantes, memoriais acadêmicos, dissertações, jornais, telejornais, enfim, tudo estava no nível de, embora "a nível de" fosse verbalizado quase instintivamente.
Extracting respiratory signals from thoracic cone beam CT projections
Creators: name: Yan, Hao
name: Wang, Xiaoyu
name: Yin, Wotao
name: Pan, Tinsu
name: Ahmad, Moiz
name: Mou, Xuanqin
name: Cervino, Laura
name: Jia, Xun
name: Jiang, Steve B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: Patient respiratory signal associated with the cone beam CT (CBCT) projections is important for lung cancer radiotherapy. In contrast to monitoring an external surrogate of respiration, such signal can be extracted directly from the CBCT projections. In this paper, we propose a novel local principle component analysis (LPCA) method to extract the respiratory signal by distinguishing the respiration motion-induced content change from the gantry rotation-induced content change in the CBCT projections. The LPCA method is evaluated by comparing with three state-of-the-art projection-based methods, namely, the Amsterdam Shroud (AS) method, the intensity analysis (IA) method, and the Fourier-transform based phase analysis (FT-p) method. The clinical CBCT projection data of eight patients, acquired under various clinical scenarios, were used to investigate the performance of each method. We found that the proposed LPCA method has demonstrated the best overall performance for cases tested and thus is a promising technique for extracting respiratory signal. We also identified the applicability of each existing method.
description: 21 pages, 11 figures, submitted to Phys. Med. Biol
Characterisation of the ERF102 to ERF105 genes of Arabidopsis thaliana and their role in the response to cold stress
Creators: name: Illgen, Sylvia
name: Zintl, Stefanie
name: Zuther, Ellen
name: Hincha, Dirk K.
name: Schmülling, Thomas
Publisher: name: Freie Universität Berlin
Year: 2020
Subjects: subject: arabidopsis thaliana
subject: cold acclimation
subject: ETHYLENE RESPONSE FACTOR genes
subject: freezing tolerance
subject: root architecture
subject: transcription factor
subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie

description: The ETHYLENE RESPONSE FACTOR (ERF) genes of Arabidopsis thaliana form a large family encoding plant-specific transcription factors. Here, we characterise the four phylogenetically closely related ERF102/ERF5, ERF103/ERF6, ERF104 and ERF105 genes. Expression analyses revealed that these four genes are similarly regulated by different hormones and abiotic stresses. Analyses of tissue-specific expression using promoter:GUS reporter lines revealed their predominant expression in root tissues including the root meristem (ERF103), the quiescent center (ERF104) and the root vasculature (all). All GFP-ERF fusion proteins were nuclear-localised. The analysis of insertional mutants, amiRNA lines and 35S:ERF overexpressing transgenic lines indicated that ERF102 to ERF105 have only a limited impact on regulating shoot and root growth. Previous work had shown a role for ERF105 in the cold stress response. Here, measurement of electrolyte leakage to determine leaf freezing tolerance and expression analyses of cold-responsive genes revealed that the combined activity of ERF102 and ERF103 is also required for a full cold acclimation response likely involving the CBF regulon. These results suggest a common function of these ERF genes in the response to cold stress.
Motivic Brown-Peterson invariants of the rationals
Creators: name: Ormsby, Kyle M.
name: Østvær, Paul Arne
Publisher: name: arXiv
Year: 2012
Subjects: subject: Algebraic Topology (math.AT)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics
subject: 55T15, 19D50, 19E15

description: Fix the base field Q of rational numbers and let BP denote the family of motivic truncated Brown-Peterson spectra over Q. We employ a "local-to-global" philosophy in order to compute the motivic Adams spectral sequence converging to the bi-graded homotopy groups of BP. Along the way, we provide a new computation of the homotopy groups of BP over the 2-adic rationals, prove a motivic Hasse principle for the spectra BP, and deduce several classical and recent theorems about the K-theory of particular fields.
description: 32 pages, 6 figures; Introduction and exposition improved, typos corrected, now published in Geometry & Topology
À MESTRA ETERNA, MARIA TEREZA, MINHA GRATIDÃO
Creators: name: Santana, José Cláudio Pavão
Publisher: name: Zenodo - Cadernos da Pena do Pavao
Year: 2023

description: Ano 07 – n. 11/2019
Soube, há pouco, que a Professora Maria Tereza Oliveira participou da última solenidade de colação de grau do Curso de Direito da UFMA.
A Mestra de gerações requereu sua aposentadoria, após mais de 45 anos de atividade na cátedra de Direito Civil.
Assessing the word recognition skills of german elementary students in silent reading - Psychometric properties of an item pool to generate curriculum-based measurements
Creators: name: Voß, Stefan
name: Blumenthal, Yvonne
Publisher: name: Freie Universität Berlin
Year: 2020
Subjects: subject: curriculum-based measurement
subject: fluency
subject: silent reading
subject: word recognition skills
subject: item response theory
subject: 300 Sozialwissenschaften::370 Bildung und Erziehung::371 Schulen, schulische Tätigkeiten; Sonderpädagogik

description: Given the high proportion of struggling readers in school and the long-term negative consequences of underachievement for those affected, the question of prevention options arises. The early identification of central indicators for reading literacy is a noteworthy starting point. In this context, curriculum-based measurements have established themselves as reliable and valid instruments for monitoring the progress of learning processes. This article is dedicated to the assessment of word recognition in silent reading as an indicator of adequate reading fluency. The process of developing an item pool is described, from which instruments for learning process diagnostics can be derived. A sample of 4268 students from grades 1–4 processed a subset of items. Each student template included anchor items, which all students processed. Using Item Response Theory, item statistics were estimated for the entire sample and all items. After eliminating unsuitable items (N = 206), a one-dimensional, homogeneous pool of items remained. In addition, there are high correlations with another established reading test. This provides the first evidence that the recording of word recognition skills for silent reading can be seen as an economic indicator for reading skills. Although the item pool forms an important basis for the extraction of curriculum-based measurements, further investigations to assess the diagnostic suitability (e.g., the measurement invariance over different test times) are still pending.
Thermodynamics of Schrödinger black holes with hyperscaling violation
Creators: name: Sadeghi, J.
name: Pourhassan, B.
name: Pourasadollah, F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this work, we follow Kim and Yamada (JHEP1107 (2011) 120) and utilize AdS in light-cone frame to derive thermodynamic and transport properties of two kinds of Schrödinger black holes with hyperscaling violation. In that case, we show entropy and temperature are depend on $θ$. In $θ=0$ we see our results are agree with the work of Kim and Yamada. We also construct R-charged black hole with hyperscaling violation and obtain thermodynamics and transport properties.
description: 14 pages
FOODLIT-PRO: Food literacy domains, influential factors and determinants—A qualitative study
Creators: name: Rosas, Raquel
name: Pimenta, Filipa
name: Leal, Isabel
name: Schwarzer, Ralf
Publisher: name: Freie Universität Berlin
Year: 2019
Subjects: subject: food literacy
subject: qualitative
subject: definition
subject: influential factors
subject: determinants
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::610 Medizin und Gesundheit

description: Poor eating habits are increasing the prevalence of weight-related issues, such as diabetes and cardiovascular diseases. Given the demand to improve individuals’ food knowledge and competencies aiming at healthier behaviours, the current investigation explores the concept of food literacy. Considering the lack of a shared understanding of food literacy, this study aims to explore food literacy’s domains, influential factors and determinants. Using a qualitative deductive-dominant content analysis, 30 experts from food-related fields were interviewed. The obtained outcomes were compared to available food literacy frameworks. Agreement among inter-raters was nearly perfect (k = 0.82). Yielding a total of 184 codes nested within 19 categories, identified domains were Origin, Safety, Choice and Decision, Select and Acquire, Plan, Preserve, Prepare, Cook, and Knowledge; influential factors included Nutrition, Psychological, Health, Learning Contexts, Policy, Industry, Sustainability, and Social and Cultural; External determinants were “Access to Food-Related Information”, “Perishable and/or Unreliable Food-Related Information”, “Family Dynamic and/or Identity”, and “Professionals’ Unpreparedness on Food-Related Expertise”, and Internal determinants included “Prioritise Food”, “Convenience and Practicality”, “Time and Financial Management”, “Previous Food-Related Habits”, and “Innate and Learned Flavour Preferences”. In conclusion, more than half of the identified attributes (62.5%) are corroborated by the current literature. However, the manifested content unmatched with the current frameworks of food literacy literature express food-literacy-related fields of action, knowledge, competencies, and determinants that have not yet been explored. As such, this study provides new and useful information concerning food literacy definition and development, by identifying its domains, factors of influence, and potential determinants. Moreover, this work paves the way for new measurements and interventions within this field.
Solitons in cavity-QED arrays containing interacting qubits
Creators: name: Chen, I. -H.
name: Lin, Y. Y.
name: Lai, Y. -C.
name: Sedov, E. S.
name: Alodjants, A. P.
name: Arakelian, S. M.
name: Lee, R. -K.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We reveal the existence of polariton soliton solutions in the array of weakly coupled optical cavities, each containing an ensemble of interacting qubits. An effective complex Ginzburg-Landau equation is derived in the continuum limit taking into account the effects of cavity field dissipation and qubit dephasing. We have shown that an enhancement of the induced nonlinearity can be achieved by two order of the magnitude with a negative interaction strength which implies a large negative qubit-field detuning as well. Bright solitons are found to be supported under perturbations only in the upper (optical) branch of polaritons, for which the corresponding group velocity is controlled by tuning the interacting strength. With the help of perturbation theory for solitons, we also demonstrate that the group velocity of these polariton solitons is suppressed by the diffusion process.
A MEDIDA DAS RÉGUAS NA UFMA
Creators: name: Santana, José Cláudio Pavão
Publisher: name: Zenodo - Cadernos da Pena do Pavao
Year: 2023

description: Ano 07 – n. 23/2019
Tomei conhecimento, há pouco, que o Reitor da Universidade Federal do Maranhão, o Prof. Dr. Natalino Salgado, nomeou como vice-reitor um candidato que não foi o mais votado na consulta à comunidade acadêmica.
Assessing the Health of Richibucto Estuary with the Latent Health Factor Index
Creators: name: Wu, Margaret
name: Chiu, Grace S.
name: Lu, Lin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Applications (stat.AP)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: The ability to quantitatively assess the health of an ecosystem is often of great interest to those tasked with monitoring and conserving ecosystems. For decades, research in this area has relied upon multimetric indices of various forms. Although indices may be numbers, many are constructed based on procedures that are highly qualitative in nature, thus limiting the quantitative rigour of the practical interpretations made from these indices. The statistical modelling approach to construct the latent health factor index (LHFI) was recently developed to express ecological data, collected to construct conventional multimetric health indices, in a rigorous quantitative model that integrates qualitative features of ecosystem health and preconceived ecological relationships among such features. This hierarchical modelling approach allows (a) statistical inference of health for observed sites and (b) prediction of health for unobserved sites, all accompanied by formal uncertainty statements. Thus far, the LHFI approach has been demonstrated and validated on freshwater ecosystems. The goal of this paper is to adapt this approach to modelling estuarine ecosystem health, particularly that of the previously unassessed system in Richibucto in New Brunswick, Canada. Field data correspond to biotic health metrics that constitute the AZTI marine biotic index (AMBI) and abiotic predictors preconceived to influence biota. We also briefly discuss related LHFI research involving additional metrics that form the infaunal trophic index (ITI). Our paper is the first to construct a scientifically sensible model to rigorously identify the collective explanatory capacity of salinity, distance downstream, channel depth, and silt-clay content --- all regarded a priori as qualitatively important abiotic drivers --- towards site health in the Richibucto ecosystem.
description: On 2013-05-01, a revised version of this article was accepted for publication in PLoS One. See Journal reference and DOI below
ProSUM Urban Mine Knowledge Data Platform - Deliverable 5.5 Data models and code lists
Creators: name: WEEE Forum
Publisher: name: Zenodo
Year: 2017
Subjects: Critical Raw Materials (CRMs)
Urban Mine Knowledge Data Platform
Urban Mine Platform
primary and secondary raw materials

description: The ProSUM project delivered the first Urban Mine Knowledge Data Platform, accessible at http://www.urbanmineplatform.eu/, a centralised database of all available data and information on arisings, stocks, flows and treatment of waste electrical and electronic equipment (WEEE), end-of-life vehicles (ELVs), batteries and mining wastes.

This document describes the foundations and work undertaken to develop the ProSUM databases that have been created in the framework of ProSUM EU-UMKDP (Urban Mine Knowledge Data Platform). In the ProSUM EU-UMKDP, data about mining waste and urban waste, more specifically Waste Electrical and Electronic Equipment (WEEE), End-of-Life Vehicles (ELV) and waste Batteries (BATT), are stored in two separate databases. Data for the mining waste extension is stored in a database with an extended and slightly modified Minerals4EU and EURare data model with new additional code list values merged into existing code lists, and some additional code list tables. Because the mining waste data model and data base has not been described in detail before, the Minerals4EU model and Prosum extensions to it are described in detail and in the Annex of this Report. In the context of this project a unified conceptual data model was developed for WEEE, ELV and BATT data. This model is also developed further into a database model, which has been implemented in a PostgreSQL database management system. The purpose of this report (ProSUM Deliverable 5.5) is to describe the developments of these databases together with the vocabulary (codelist values) that are used in these databases.
Torsional Alfvén waves in solar partially ionized plasma: effects of neutral helium and stratification
Creators: name: Zaqarashvili, T. V.
name: Khodachenko, M. L.
name: Soler, R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Ion-neutral collisions may lead to the damping of Alfven waves in chromospheric and prominence plasmas. Neutral helium atoms enhance the damping in certain temperature interval, where the ratio of neutral helium and neutral hydrogen atoms is increased. Therefore, the height-dependence of ionization degrees of hydrogen and helium may influence the damping rate of Alfven waves. We aim to study the effect of neutral helium in the damping of Alfven waves in stratified partially ionized plasma of the solar chromosphere. We consider a magnetic flux tube, which is expanded up to 1000 km height and then becomes vertical due to merging with neighboring tubes, and study the dynamics of linear torsional Alfven waves in the presence of neutral hydrogen and neutral helium atoms. We start with three-fluid description of plasma and consequently derive single-fluid magnetohydrodynamic (MHD) equations for torsional Alfven waves. Thin flux tube approximation allows to obtain the dispersion relation of the waves in the lower part of tubes, while the spatial dependence of steady-state Alfven waves is governed by Bessel type equation in the upper part of tubes. Consecutive derivation of single-fluid MHD equations results in a new Cowling diffusion coefficient in the presence of neutral helium which is different from previously used one. We found that shorter-period (< 5 s) torsional Alfven waves damp quickly in the chromospheric network due to ion-neutral collision. On the other hand, longer-period (> 5 s) waves do not reach the transition region as they become evanescent at lower heights in the network cores. Propagation of torsional Alfven waves through the chromosphere into the solar corona should be considered with caution: low-frequency waves are evanescent due to the stratification, while high-frequency waves are damped due to ion neutral collisions.
description: 9 pages, 7 figures (accepted in A&A)
MAS NMR detection of hydrogen bonds for protein secondary structure characterization
Creators: name: Friedrich, Daniel
name: Perodeau, Jacqueline
name: Nieuwkoop, Andrew J.
name: Oschkinat, Hartmut
Publisher: name: Freie Universität Berlin
Year: 2020
Subjects: subject: fast MAS
subject: proton detection
subject: hydrogen bonds
subject: secondary structure
subject: cross polarization
subject: 500 Naturwissenschaften und Mathematik::540 Chemie::547 Organische Chemie

description: Hydrogen bonds are essential for protein structure and function, making experimental access to long-range interactions between amide protons and heteroatoms invaluable. Here we show that measuring distance restraints involving backbone hydrogen atoms and carbonyl- or α-carbons enables the identification of secondary structure elements based on hydrogen bonds, provides long-range contacts and validates spectral assignments. To this end, we apply specifically tailored, proton-detected 3D (H)NCOH and (H)NCAH experiments under fast magic angle spinning (MAS) conditions to microcrystalline samples of SH3 and GB1. We observe through-space, semi-quantitative correlations between protein backbone carbon atoms and multiple amide protons, enabling us to determine hydrogen bonding patterns and thus to identify β-sheet topologies and α-helices in proteins. Our approach shows the value of fast MAS and suggests new routes in probing both secondary structure and the role of functionally-relevant protons in all targets of solid-state MAS NMR.
Analysis of a single-mode waveguide at sub-terahertz frequencies as a communication channel
Creators: name: Westig, Marc
name: Thierschmann, Holger
name: Katan, Allard
name: Finkel, Matvey
name: Klapwijk, Teun M.
Publisher: name: Freie Universität Berlin
Year: 2020
Subjects: subject: single-mode waveguide
subject: sub-terahertz frequencies
subject: communication
subject: 500 Naturwissenschaften und Mathematik::530 Physik::530 Physik

description: We study experimentally the transmission of an electromagnetic waveguide in the frequency range from 160 to 300 GHz. Photo-mixing is used to excite and detect the fundamental TE10 mode in a rectangular waveguide with two orders-of-magnitude lower impedance. The large impedance mismatch leads to a strong frequency dependence of the transmission, which we measure with a high-dynamic range of up to 80 dB and with high frequency-resolution. The modified transmission function is directly related to the information rate of the waveguide, which we estimate to be about 1 bit per photon. We suggest that the results are applicable to a Josephson junction employed as a single-photon source and coupled to a superconducting waveguide to achieve a simple on-demand narrow-bandwidth free-space number-state quantum channel.
Use of meat juice and blood serum with a miniaturised protein microarray assay to develop a multi-parameter IgG screening test with high sample throughput potential for slaughtering pigs
Creators: name: Loreck, Katharina
name: Mitrenga, Sylvia
name: Heinze, Regina
name: Ehricht, Ralf
name: Engemann, Claudia
name: Lueken, Caroline
name: Ploetz, Madeleine
name: Greiner, Matthias
name: Meemken, Diana
Publisher: name: Freie Universität Berlin
Year: 2020
Subjects: subject: microarray
subject: serology
subject: pig
subject: abattoir
subject: zoonosis
subject: production disease
subject: toxoplasma gondii
subject: yersinia enterocolitica
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::610 Medizin und Gesundheit

description: Background Serological screening of pig herds at the abattoir is considered a potential tool to improve meat inspection procedures and herd health management. Therefore, we previously reported the feasibility of a miniaturised protein microarray as a new serological IgG screening test for zoonotic agents and production diseases in pigs. The present study investigates whether the protein microarray-based assay is applicable for high sample throughput using either blood serum or meat juice. Material and methods Microarrays with 12 different antigens were produced by Abbott (formerly Alere Technologies GmbH) Jena, Germany in a previously offered ‘ArrayTube’ platform and in an ‘ArrayStrip’ platform for large-scale use. A test protocol for the use of meat juice on both microarray platforms was developed. Agreement between serum and meat juice was analysed with 88 paired samples from three German abattoirs. Serum was diluted 1:50 and meat juice 1:2. ELISA results for all tested antigens from a preceding study were used as reference test to perform Receiver Operating Characteristic analysis for both test specimens on both microarray platforms. Results High area under curve values (AUC > 0.7) were calculated for the analysis of T. gondii (0.87), Y. enterocolitica (0.97), Mycoplasma hyopneumoniae (0.84) and Actinobacillus pleuropneumoniae (0.71) with serum as the test specimen and for T. gondii (0.99), Y. enterocolitica (0.94), PRRSV (0.88), A. pleuropneumoniae (0.78) and Salmonella spp. (0.72) with meat juice as the test specimen on the ArrayStrip platform. Cohens kappa values of 0.92 for T. gondii and 0.82 for Y. enterocolitica were obtained for the comparison between serum and meat juice. When applying the new method in two further laboratories, kappa values between 0.63 and 0.94 were achieved between the laboratories for these two pathogens. Conclusion Further development of a miniaturised pig-specific IgG protein microarray assay showed that meat juice can be used on microarray platforms. Two out of twelve tested antigens (T. gondii, Y. enterocolitica) showed high test accuracy on the ArrayTube and the ArrayStrip platform with both sample materials.
Origin of Multiferroicity in MnWO4
Creators: name: Solovyev, I. V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: MnWO4 is regarded as a canonical example of multiferroic materials, where the multiferroic activity is caused by a spin-spiral alignment. We argue that, in reality, MnWO4 has two sources of the spin-spirality, which conflict with each other. One is the Dzyaloshinskii-Moriya (DM) interactions, reflecting the P2/c symmetry of the lattice. The P2/c structure of MnWO4 has an inversion center, that connects two Mn sublattices. Therefore, from the viewpoint of DM interactions, different Mn sublattices are expected to have opposite spin chirality. Another source is competing isotropic exchange interactions, which tend to form a spin-spiral texture with the same chirality in both magnetic sublattices. Thus, there is a conflict between DM and isotropic exchange interactions, which makes these two sublattices inequivalent and, therefore, breaks the inversion symmetry. Our theoretical analysis is based on the low-energy model, derived from the first-principles electronic structure calculations.
description: 17 pages, 5 figures
11 ILHAS 1 CONTINENTE
Creators: name: Santana, José Cláudio Pavão
Publisher: name: Zenodo - Cadernos da Pena do Pavao
Year: 2023

description: Ano 07 – n. 10/2019
Li ontem que a Ministra do Supremo Tribunal Federal, Carmen Lucia, afirmou em evento – em tom de brincadeira – que "todo brasileiro é o 12o ministro do Supremo". Foi o que colhi do UOL notícias.
Evolutionary instability of Zero Determinant strategies demonstrates that winning isn't everything
Creators: name: Adami, Christoph
name: Hintze, Arend
Publisher: name: arXiv
Year: 2012
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Zero Determinant (ZD) strategies are a new class of probabilistic and conditional strategies that are able to unilaterally set the expected payoff of an opponent in iterated plays of the Prisoner's Dilemma irrespective of the opponent's strategy, or else to set the ratio between a ZD player's and their opponent's expected payoff. Here we show that while ZD strategies are weakly dominant, they are not evolutionarily stable and will instead evolve into less coercive strategies. We show that ZD strategies with an informational advantage over other players that allows them to recognize other ZD strategies can be evolutionarily stable (and able to exploit other players). However, such an advantage is bound to be short-lived as opposing strategies evolve to counteract the recognition.
description: 14 pages, 4 figures. Change in title (again!) to comply with Nature Communications requirements. To appear in Nature Communications
An alternative interpretation of Belle data on γ-γ-> η'-π^+-π^-
Creators: name: Bugg, D. V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Belle data on gamma-gamma -> eta'-pi-pi are refitted using a broad J^{PC}=0^(-+) signal peaking in the mass range 2250-2300 MeV, but without η(1760). There is the possibility that this broad 0^(-+) signal may be identified with the 0^(-+) glueball predicted originally by Morningstar and Peardon. The X(1835) is confirmed to have a resonant phase variation.
description: 7 pages, 2 figures; 3 references added