cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Lower bound for cyclic sums of Diananda type
Creators: name: Sadov, Sergey
Publisher: name: arXiv
Year: 2015
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 26D15

description: Let $C=\inf (k/n)\sum_{i=1}^n x_i(x_{i+1}+\dots+x_{i+k})^{-1}$, where the infimum is taken over all pairs of integers $n\geq k\geq 1$ and all positive $x_1,\dots,x_{n+k}$ subject to cyclicity assumption $x_{n+i}=x_i$, $i=1,\dots,k$. We prove that $\ln 2\leq C< 0.9305$. In the definition of the constant $C$ the operation $\inf_k\inf_n\inf_{\mathbf{x}}$ can be replaced by $\lim_{k\to\infty}\lim_{n\to\infty}\inf_{\mathbf{x}}$.
description: 12pp
En la era del Todopoderoso: discusiones dentro y al borde de Dios
Creators: name: Canaza-Choque, Franklin Américo
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 500401
subject: Christian studies
classificationCode: 500402
subject: Comparative religious studies
classificationCode: 500405
subject: Religion, society and culture
classificationCode: 500406
subject: Studies in eastern religious traditions
classificationCode: 500499
subject: Religious studies not elsewhere classified
classificationCode: 500407
subject: Studies in religious traditions (excl. Eastern, Jewish, Christian and Islamic traditions)

description: En todas partes y en todos los tiempos, Dios ha significado una discusión interminable, por no decir eterna. No obstante, más allá de su poder que podría ser incluso infinito, o de posiciones fuertes que buscan su límite, existe una vibración de sucesos acaecidos siglos atrás en regiones poco, o nulamente radiadas por el poder de Dios. Entre esa consideración y mediante una revisión teórica, este estudio pretende desdoblar un doble análisis breve sobre las discusiones acerca de Dios en un cuadro delimitado no más allá de su influencia. Del mismo modo, este análisis trastoca además una antigua zona mucho antes de que los cristianos desterraran a los dioses nativos de las regiones andinas. Al respecto, este último fue, en todo sentido un espacio que se hallaba en constante pugna de poderes sobrevenidos por el enfrentamiento telúrico y cósmico entre divinidades que mostraban su superioridad frente a otras. Finalmente, no extraña y no resulta nada raro de que la religión cual fuese el ángulo de perspectiva es sin duda, la imagen representativa de cómo iniciaron las cosas del vivir de los pueblos occidentales y no occidentales, y desde luego, las que determinaron su propia estructuración.
Microscopic derivation of Open Quantum Walks
Creators: name: Sinayskiy, Ilya
name: Petruccione, Francesco
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Open Quantum Walks (OQWs) are exclusively driven by dissipation and are formulated as completely positive trace preserving (CPTP) maps on underlying graphs. The microscopic derivation of discrete and continuous in time OQWs is presented. It is assumed that connected nodes are weakly interacting via a common bath. The resulting reduced master equation of the quantum walker on the lattice is in the generalised master equation form. The time discretisation of the generalised master equation leads to the OQWs formalism. The explicit form of the transition operators establishes a connection between dynamical properties of the OQWs and thermodynamical characteristics of the environment. The derivation is demonstrated for the examples of the OQW on a circle of nodes and on a finite chain of nodes. For both examples a transition between diffusive and ballistic quantum trajectories is observed and found to be related to the temperature of the bath.
description: 13 pages, 7 figures
Gordonoryssomus Almeida & Lima 1995
Creators: name: Almeida, Lúcia M.
name: Santos, Paula B.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Coccinellidae
Gordonoryssomus

description: Key to species of Gordonoryssomus Almeida & Lima
1. Pronotum and elytra of a single color, without spots.......................................................... 2
1’. Pattern not as described above........................................................................... 3
2. Elytra black (Bolivia)............................................................ G. nigrus Almeida & Lima
2’. Pronotum and elytra reddish yellow (Peru and Bolivia).......................................... G. mirnae s p. nov.
3. Pronotum and elytra reddish brown; elytra with basal spot shaped by black pubescence (Brazil: ES)............................................................................................... G. nigripilosus Almeida & Lima
3’. Pattern not as described above........................................................................... 4
4. Elytra with one spot along the sutural margin............................................................... 5
4’. Elytra without spot along the sutural margin................................................................ 6
5. Elytra with one large yellowish red spot along the sutural margin, reaching almost 2/3 of the suture (Brazil: PI)................................................................................................. G. limeirai sp. nov.
5’. Elytra with one small orange spot on the center of elytral suture (Brazil: MG, RJ, SC, RS)..... G. delicatus Almeida & Lima
6. Male with length 3.44 and width 2.26 mm (Brazil: RJ)....................................... G. everardoi sp. nov.
6’. Male with length 4.08–5.00 and width 3.33–4.00 mm (Brazil: RJ, MG, SC and Chile)............... G. deyrollii (Crotch)
description: Published as part of Almeida, Lúcia M. & Santos, Paula B., 2014, Synopsis of Oryssomini Gordon (Coleoptera: Coccinellidae) from the Neotropical region with new species of Oryssomus Mulsant, Pseudoryssomus Gordon and Gordonoryssomus Almeida & Lima, pp. 42-68 in Zootaxa 3846 (1) on page 59, DOI: 10.11646/zootaxa.3846.1.2, http://zenodo.org/record/250860
Metformin on Pristane Induced Lupus
Creators: name: Sumantri, Stevent
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences
subject: intraperitoneal metformin
subject: metformin
subject: pristane induced lupus

description: Evaluating the effect of oral and intraperitoneal metformin intervention on pristane induced lupus (female BALB/c mice). Measuring various pro/anti-inflammatory cytokines, FOXP3 mRNA levels and histopathological scoring.
Homogeneous Alignment of Liquid Crystalline Dendrimers Confined in a Slit-Pore: Computational Simulation Study
Creators: name: Workineh, Zerihun G.
name: Vanakaras, Alexandros G.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: In this work we present results from NPT(isobaric-isothermal) Monte Carlo Simulation studies of Liquid Crystalline Dendrimer (LCDr) systems confined in a slit-pore made of two parallel flat walls. We investigate the substrate induced conformational and alignment properties of the system at different thermodynamic state points under uniform (unidirectional) anchoring condition. Tractable coarse grained force fields to model both monomer-monomer and monomer-substrate interaction potentials have been used from our previous work. In this anchoring condition, at lower pressure almost all the monomers are anchored to the substrates and mesogens are perfectly aligned with the aligning direction. This alignment is not uniformly transmitted to the bulk region as the pressure grows, instead, it decays with distance from the surface to the bulk region. Due to this reason, the global orintational order parameter decreases with increasing pressure (density). In the neighborhood (2-3 mesogenic diameter) of upper and lower walls, mesogenic units form smectic A like structure whose layers are separated by layers of spherical beads. In this region individual LCDrs possess a rod like shape.
description: 10 pages, 15 JPEG figures
Strong-field absorption and emission of radiation in two-electron systems calculated with time-dependent natural orbitals
Creators: name: Brics, M.
name: Rapp, J.
name: Bauer, D.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Recently introduced time-dependent renormalized-natural-orbital theory (TDRNOT) is based on the equations of motion for the so-called natural orbitals, i.e., the eigenfunctions of the one-body reduced density matrix. Exact TDRNOT can be formulated for any time-dependent two-electron system in either spin configuration. In this paper, the method is tested against high-order harmonic generation (HHG) and Fano profiles in absorption spectra with the help of a numerically exactly solvable one-dimensional model He atom, starting from the spin-singlet ground state. Such benchmarks are challenging because Fano profiles originate from transitions involving autoionizing states, and HHG is a strong-field phenomenon well beyond linear response. TDRNOT with just one natural orbital per spin in the helium spin-singlet case is equivalent to time-dependent Hartree-Fock or time-dependent density functional theory (TDDFT) in exact exchange-only approximation. It is not unexpected that TDDFT fails in reproducing Fano profiles due to the lack of doubly excited, autoionizing states. HHG spectra, on the other hand, are widely believed to be well-captured by TDDFT. However, HHG spectra of helium may display a second plateau that originates from simultaneous HHG in He$^+$ and neutral He. It is found that already TDRNOT with two natural orbitals per spin is sufficient to capture this effect as well as the Fano profiles on a qualitative level. With more natural orbitals (6--8 per spin) quantitative agreement can be reached. Errors due to the truncation to a finite number of orbitals are identified.
description: 9 pages, 4 figures, REVTeX
Decarbonization of Ecuadorian Mobility-Challenges and Opportunities (EMP-LAC 2023)
Creators: name: Dávila, Lissete
name: Albán, Pablo
name: Barreto, Anahí
name: Delgado, Adriana
name: Meneses, Esteban
Publisher: name: Zenodo
Year: 2023

description: This is the first version of the presentation for the project prepared for the EMP-LAC 2023. The team is focused on Ecuador Energy Matrix.
Dense gas in the Galactic central molecular zone is warm and heated by turbulence
Creators: name: Ginsburg, Adam
name: Henkel, Christian
name: Ao, Yiping
name: Riquelme, Denise
name: Kauffmann, Jens
name: Pillai, Thushara
name: Mills, Elisabeth A. C.
name: Requena-Torres, Miguel A.
name: Immer, Katharina
name: Testi, Leonardo
name: Ott, Juergen
name: Bally, John
name: Battersby, Cara
name: Darling, Jeremy
name: Aalto, Susanne
name: Stanke, Thomas
name: Kendrew, Sarah
name: Kruijssen, J. M. Diederik
name: Longmore, Steven
name: Dale, James
name: Guesten, Rolf
name: Menten, Karl M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The Galactic center is the closest region in which we can study star formation under extreme physical conditions like those in high-redshift galaxies. We measure the temperature of the dense gas in the central molecular zone (CMZ) and examine what drives it. We mapped the inner 300 pc of the CMZ in the temperature-sensitive J = 3-2 para-formaldehyde (p-H$_2$CO) transitions. We used the $3_{2,1} - 2_{2,0} / 3_{0,3} - 2_{0,2}$ line ratio to determine the gas temperature in $n \sim 10^4 - 10^5 $cm$^{-3}$ gas. We have produced temperature maps and cubes with 30" and 1 km/s resolution and published all data in FITS form. Dense gas temperatures in the Galactic center range from ~60 K to > 100 K in selected regions. The highest gas temperatures T_G > 100 K are observed around the Sgr B2 cores, in the extended Sgr B2 cloud, the 20 km/s and 50 km/s clouds, and in "The Brick" (G0.253+0.016). We infer an upper limit on the cosmic ray ionization rate $ζ_{CR} < 10^{-14}$ 1/s. The dense molecular gas temperature of the region around our Galactic center is similar to values found in the central regions of other galaxies, in particular starburst systems. The gas temperature is uniformly higher than the dust temperature, confirming that dust is a coolant in the dense gas. Turbulent heating can readily explain the observed temperatures given the observed line widths. Cosmic rays cannot explain the observed variation in gas temperatures, so CMZ dense gas temperatures are not dominated by cosmic ray heating. The gas temperatures previously observed to be high in the inner ~75 pc are confirmed to be high in the entire CMZ.
description: Accepted to A&A. The data (raw & processed) are available from http://doi.org/10.7910/DVN/27601 . The processing pipeline, analysis code, and paper source are available at https://github.com/adamginsburg/APEX_CMZ_H2CO
Inclusive Higgs Production at Large Transverse Momentum
Creators: name: Braaten, Eric
name: Zhang, Hong
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a factorization formula for the inclusive production of the Higgs boson at large transverse momentum $P_T$ that includes all terms with the leading power of $1/P_T^2$. The cross section is factorized into convolutions of parton distributions, infrared-safe hard-scattering cross sections for producing a parton, and fragmentation functions that give the distribution of the longitudinal momentum fraction of the Higgs relative to the fragmenting parton. The infrared-safe cross sections and the fragmentation functions are perturbatively calculable. The most important fragmentation functions are those for which the fragmenting parton is the top quark, gluon, $W$, $Z$, and the Higgs itself. We calculate the fragmentation functions at leading order in the Standard Model coupling constants. The factorization formula enables the resummation of large logarithms of $P_T/M_H$ due to final-state radiation by integrating evolution equations for the fragmentation functions. By comparing the cross section for the process $q\bar{q}\to H t\bar t$ from the leading-power factorization formula at leading order in the coupling constants with the complete leading-order cross section, we infer that the error in the factorization formula decreases to less than 5\% for $P_T>600$ GeV at a future $100$ TeV collider.
description: 39 pages, 9 figures
The Ch-class asteroids: Connecting a visible taxonomic class to a 3-μm band shape
Creators: name: Rivkin, Andrew S.
name: Thomas, Cristina A.
name: Howell, Ellen S.
name: Emery, Joshua P.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Asteroids belonging to the Ch spectral taxonomic class are defined by the presence of an absorption near 0.7 μm, which is interpreted as due to Fe-bearing phyllosilicates. Phyllosilicates also cause strong absorptions in the 3-μm region, as do other hydrated and hydroxylated minerals and H2O ice. Over the past decade, spectral observations have revealed different 3-μm band shapes the asteroid population. Although a formal taxonomy is yet to be fully established, the "Pallas-type" spectral group is most consistent with the presence of phyllosilicates. If Ch class and Pallas type are both indicative of phyllosilicates, then all Ch-class asteroids should also be Pallas-type. In order to test this hypothesis, we obtained 42 observations of 36 Ch-class asteroids in the 2- to 4-μm spectral region. We found that 88% of the spectra have 3-μm band shapes most consistent with the Pallas-type group. This is the first asteroid class for which such a strong correlation has been found. Because the Ch class is defined by the presence of an absorption near 0.7 μm, this demonstrates that the 0.7-μm band serves not only as a proxy for the presence of a band in the 3-μm region, but specifically for the presence of Pallas-type bands. There is some evidence for a correlation between band depth at 2.95 μm and absolute magnitude and/or albedo. However, we find only weak correlations between 2.95-μm band depth and semi-major axis. The connection between band depths in the 0.7- and 3-μm regions is complex and in need of further investigation.
description: Accepted for publication in Astronomical Journal 5 November: Replaced 4 November version since it accidentally omitted figures!
Confrontation between structural and thermal properties of NiXTiX-YHfY .at% ternary alloys obtained by three distinct fusion processes
Creators: name: Soares, Roniere
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Materials Science and Engineering
subject: Engineering
subject: DSC; Microscopy; Ni-Ti-Hf; Ternary Alloys; XRD.

description: The present research focused on the experimental results obtained for the NiXTiX-YHfY .at% (where X = 50; Y = Hf = 8, 11, 14, 17 and 20 .at%) substitutive alloys with shape memory effect (SME). The samples were fused by 3 different processes and subjected to X-Ray Diffraction (XRD) and differential scanning calorimetry (DSC) to demonstrate the differences between structural and thermal properties for equal compositions. In addition, chemically etched samples were used for surface observation in two types of microscopy: optical microscopy (OM) and scanning electron microscopy (SEM). The results derived from the three distinct processes were compared and discussed, confirming several significant differences in the properties studied here.
Activity of the Antimicrobial Peptide Apidaecin Against Gram-Positive Bacteria
Creators: name: Miller, Zebedee
Publisher: name: University of Illinois at Chicago
Year: 2023

description: Apidaecin (Api) is a small antibacterial peptide produced by honeybees able to inhibit growth of Gram-negative bacteria via a unique mechanism of action. Once Api enters the cell through specialized transporters, it sequesters release factors (RF1 or RF2) on the terminating ribosome. Because RFs are outnumbered by ribosomes in E. coli cells, Api action leads to depletion of available RFs necessary for the end of translation and causes inhibition of protein synthesis. Gram-positive bacteria are impervious to Api because they lack the specialized transporters to internalize the antimicrobial. Furthermore, it is unknown whether Api can interact with the ribosomes and sequester the RFs of Gram-positive bacteria. To test whether Api is able to target the translation machinery of Gram-positive bacteria, we used a toeprinting assay which reveals the site of inhibitor-induced ribosome stalling on mRNA. Toeprintng analysis showed that Api arrests the Bacillus subtilis ribosome at stop codons, demonstrating for the first time that it can inhibit translation driven by ribosomes from Gram-positive bacteria. Having established Api’s ability to act on the Gram-positive ribosome in vitro, we used in-vivo assays to test if Api can inhibit growth of B. subtilis. To overcome the uptake issue, we endogenously expressed Api in B. subtilis cells by introducing an Api-encoding gene either into the chromosome or on a plasmid under the control of xylose-inducible promoter. Nevertheless, the addition of xylose to the cells carrying the api gene caused no toxicity. To test whether Api is expressed in B. subtilis, we appended it at the C-terminus of GFP, a chimeric construct that inhibits growth of E. coli. In spite of a high level of expression, verified by the fluorescence of the B. subtilis cells carrying Finding that Api has no inhibition of growth of G(+) bacteria we decided to test the inhibition of global translation in the presence of Api. Utilizing metabolic labeling of proteins using radioactive methionine demonstrated that global translation of B. subtilis is unaffected by Api. Knowing that Api can target the ribosome of Gram-positive bacteria but is unable to inhibit growth despite of strong expression, we decided to complete toeprinting assays utilizing B. subtilis release factors rather than the E. coli factors. We saw no inhibition or stalling of the ribosome when using the B. subtilis release factors. This demonstrated that even though Api can act on the Gram-positive ribosome it cannot sequester the Gram-positive release factors, losing all activity. Our findings that an antimicrobial peptide targeting the highly conserved ribosome has markedly contrasting effects on the growth of Gram-negative and Gram-positive bacteria may reveal important differences in the makeup of translation machinery factors among bacterial species. Understanding these differences may be critical for expanding the spectrum of activity of ribosome-targeting antibacterial peptides.
Near equipartitions of colored point sets
Creators: name: Holmsen, Andreas F.
name: Kynčl, Jan
name: Valculescu, Claudiu
Publisher: name: arXiv
Year: 2016
Subjects: subject: Combinatorics (math.CO)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 52C35

description: Suppose that $nk$ points in general position in the plane are colored red and blue, with at least $n$ points of each color. We show that then there exist $n$ pairwise disjoint convex sets, each of them containing $k$ of the points, and each of them containing points of both colors. We also show that if $P$ is a set of $n(d+1)$ points in general position in $\mathbb{R}^d$ colored by $d$ colors with at least $n$ points of each color, then there exist $n$ pairwise disjoint $d$-dimensional simplices with vertices in $P$, each of them containing a point of every color. These results can be viewed as a step towards a common generalization of several previously known geometric partitioning results regarding colored point sets.
description: 13 pages, 5 figures; new simple proof of Lemma 4
Biomechanical Modeling of Canine Retraction
Creators: name: Larson, Matthew Evans
Publisher: name: University of North Carolina at Chapel Hill
Year: 2012

description: Objective: To create a comprehensive finite element model capable of analyzing the biomechanics of canine retraction. Methods: A half maxilla virtual model with an extracted first premolar was created from human computed tomography data. Accurate brackets and an 0.018 archwire were placed to model canine retraction under 0.5N and 1.0N of retraction force. A two-tooth substructural model was isolated to examine the importance of surrounding geometry. Additionally, mesh size and periodontal ligament (PDL) elastic modulus were varied to examine the effect on predictions. Comparisons were made to previously published clinical data. Results: The substructural model decreased computational load, but altered maximum stress up to 16.4%. Coarse mesh sizing affected displacement results up to 22% and maximum stress up to 47%. No PDL stiffness was able to accurately represent the clinical data. Conclusions: Modeling canine retraction was partially achieved, highlighting the importance of mesh sizing and the need to incorporate remodeling.
Β-Cyclodextrins and Lipidic Dispersions as Encapsulating Vectors of Oregano (Origanum vulgare L.) Essential Oil: Characterization and Evaluation of Their Antimicrobial Activity Against Listeria Monocytogenes in Broth and Model Food
Creators: name: Gounadaki, A.S.
name: Bozinaki, D.
name: Mesimeri I-D.
name: Moschopoulou, G.
name: Kintzios, S.
name: Skandamis P.N
Publisher: name: Zenodo
Year: 2022

description: Abstract: Introduction: The hydrophobicity, strong flavor and high volatility of essential oils impede their commercial application in foods. Purpose: To study the encapsulation of Oregano essential oil (OEO) in β-cyclodextrin (β-CD) and lipidic dispersions to enhance dispersion and controlled release of OEO and evaluate their effect on the survival of Listeria monocytogenes in Tryptic Soy Broth (TSB) and cheese broth. Methods: The encapsulation of OEO in β-CD was performed with the co-precipitation method, whereas for the incorporation of OEO into lipidic dispersion the thin-film hydration method was applied. Size distribution (PDI) and zeta-potential(ζ) of the formed inclusion complexes (IC) were assessed by Dynamic Light Scattering (DLS). Determination of encapsulation efficiency (EE%) and release rate of the formed ICs was performed by UV-Vis spectroscopy. The effect of ICs and free OEO at MIC, ½ MIC and 2xMIC against L. monocytogenes (3-strain cocktail: 106 CFU/ml), was determined in TSB (pH 7.0, 4.3) and "katiki" cheese broth (pH 4.3) at 7o C. Results: The complexes presented nanoscale size (<1000nm), 127.24±25.83 nm with an intensity of >90% for OEO-β-CD and 106.84 ±42.81 and 948.05 ±409.95nm with intensity of 47% and 51.9%, respectively for OEO-lipidic dispersion. The size dispersion was 0.433 ±0.064 nm for OEO-β-CD and 0.872 ±0.070 nm for OEO-lipidic dispersion. An acceptable stability was observed (>20 mV) with ζ-potential -23.57±6.76 mV for OEO-β-CD and -49.5±6.18 mV for lipidic dispersion. EE% was 80.3%±4.0 and 87.8±3.7 for OEO-β-CD and OEO lipidic dispersion, respectively. The OEO release from both complexes occurred continuously for 18 days. The dose-dependent inhibitory effect of encapsulated OEO against L. monocytogenes was higher in TSB than in cheese-broth and increased at lower pH. Lipidic dispersion was more effective than OEO-β-CD at both pH values. The antimicrobial effect of encapsulated OEO was not as rapid as the effect of free EO, confirming the slow release of EO due to encapsulation. Significance: The results are indicative for the application of encapsulated OEO to control of L. monocytogenes in foods.
The Keystone Tour of the World 400 series: stereographic images of Africa and American self-representation
Creators: name: Halsband, Megan Claire
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008

description: As significant objects of visual culture produced in the late nineteenth and early twentieth centuries, stereographic images represent a great deal more than their selfstyled subjects. Stereographic images provided America a means of self-representation that functioned by constructing the rest of the world in varying degrees of otherness. Images of Africa, particularly from the numerous world tour series published by the Keystone View Company, provided a direct visual contrast in order to represent America as civilized, worldly and modern by comparison with primitive African people. These images were used as a tool for American self-imagination, for imagining the other of Africa and, rather than developing beyond historic representations of Africa, continued to fix Africa as a-historical and savage.
Inverse Amplitude Method for Perturbative Electroweak Symmetry Breaking Sector: The Singlet Higgs Portal as a Study Case
Creators: name: Corbett, Tyler
name: Éboli, O. J. P.
name: Gonzalez-Garcia, M. C.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We explore the use of the Inverse Amplitude Method for unitarization of scattering amplitudes to derive the existence and properties of possible new heavy states associated with perturbative extensions of the electroweak breaking sector of the Standard Model starting from the low energy effective theory. We use a toy effective theory generated by integrating out a heavy singlet scalar and compare the pole mass and width of the unitarized amplitudes with those of the original model. Our results show that the Inverse Amplitude Method reproduces correctly the singlet mass up to factors of O(1-3), but its width is overestimated.
description: 11 pages with 2 figures
Consistency Problem of the Solutions of the Space Fractional Schrödinger Equation
Creators: name: Bayin, Selçuk Ş.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Recently, consistency of the infinite square well solution of the space fractional Schrödinger equation has been the subject of some controversy. In [J. Math. Phys. 54, 014101 (2013)], Hawkins and Schwarz objected to the way certain integrals are evaluated to show the consistency of the infinite square well solutions of the space fractional Schrödinger equation [J. Math. Phys. 53, 042105 (2012); J. Math. Phys. 53, 084101 (2012)]. Here, we show for general n that as far as the integral representation of the solution in the momentum space is concerned, there is no inconsistency. To pinpoint the source of a possible inconsistency, we also scrutinize the different representations of the Riesz derivative that plays a central role in this controversy and show that they all have the same Fourier transform, when evaluated with consistent assumptions. PACS numbers: 03.65.Ca, 02.50.Ey, 02.30.Gp, 03.65.Db
description: Misprints in Eqs.(68-70)corrected
title: Machine learning density functionals from the random-phase approximation
title: Training data
titleType: Subtitle
Creators: name: Riemelmoser, Stefan
Year: 2023
Subjects: Festkörperphysik
Solid state physics
ÖFOS 2012 -- NATURWISSENSCHAFTEN (1) -- Physik, Astronomie (103) -- Physik, Astronomie (1030) -- Festkörperphysik (103009)
ÖFOS 2012 -- NATURAL SCIENCES (1) -- Physics, Astronomy (103) -- Physics, Astronomy (1030) -- Solid state physics (103009)
Computational Chemistry
Computational chemistry
ÖFOS 2012 -- NATURWISSENSCHAFTEN (1) -- Chemie (104) -- Chemie (1040) -- Computational Chemistry (104027)
ÖFOS 2012 -- NATURAL SCIENCES (1) -- Chemistry (104) -- Chemistry (1040) -- Computational chemistry (104027)
Machine Learning
Machine learning
ÖFOS 2012 -- NATURWISSENSCHAFTEN (1) -- Informatik (102) -- Informatik (1020) -- Machine Learning (102019)
ÖFOS 2012 -- NATURAL SCIENCES (1) -- Computer Sciences (102) -- Computer Sciences (1020) -- Machine learning (102019)
density functional theory, random-phase approximation, machine learning

description: ML-RPA training data contains 189 training structures: - 41 G2 molecules - 40 bulk diamond structures - 16 (x2) diamond surfaces - 76 water strctures training data for each individual structure: - 1st line: exact RPA exchange-correlation energy - atomic structure in VASP POSCAR format - xc-potential shift (can be ignored here) - electronic charge density in VASP CHG format - exact RPA-OEP exchange-correlation potential in VASP LOCPOT format
An Intergenerational Migration Experience: Social Mobility Among Return Migrants and their Families in Mexico
Creators: name: Viera, Janelle
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: This study examines intergenerational social mobility pathways within families of mixed migratory status. Focusing on the residents of Leon, Mexico, I use a mixed methods analysis of interviews and survey data on 50 return migrants to Leon to identify signs of intergenerational social mobility within their families. The study finds that parental return migration plays a role in determining a family’s potential for upward mobility. Findings show that migrants’ labor market experiences, both abroad and upon return to the origin country, influence their likelihood of intergenerational social mobility. Labor market experiences prove especially influential over these families’ mobility pathways, with these experiences directly affecting the occupational and educational opportunities of the return migrants and their children, respectively. The study ultimately demonstrates international migration’s potential to disrupt social class reproduction and highlights the implications of migration on the future economic success of migrant families with low levels of traditional human capital.
Fibred Fibration Categories
Creators: name: Uemura, Taichi
Publisher: name: arXiv
Year: 2016
Subjects: subject: Category Theory (math.CT)
subject: FOS: Mathematics

description: We introduce fibred type-theoretic fibration categories which are fibred categories between categorical models of Martin-Löf type theory. Fibred type-theoretic fibration categories give a categorical description of logical predicates for identity types. As an application, we show a relational parametricity result for homotopy type theory. As a corollary, it follows that every closed term of type of polymorphic endofunctions on a loop space is homotopic to some iterated concatenation of a loop.
Early ultraviolet signatures from the interaction of Type Ia supernova ejecta with a stellar companion
Creators: name: Liu, Zheng-Wei
name: Moriya, Takashi J.
name: Stancliffe, Richard J.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The progenitors of SNe Ia are not yet fully understood. The two leading progenitor scenarios are the single-degenerate (SD) scenario and the double-degenerate scenario. In the SD scenario, the collision of the SN Ia ejecta with its companion star is expected to produce detectable ultraviolet (UV) emission in the first few days after the SN explosion within certain viewing angles. A strong UV flash has recently been detected in an SN 2002es-like peculiar SN Ia iPTF14atg by Cao et al., which is interpreted as evidence of an early-time UV signature due to SN ejecta interacting with its companion star, supporting the SD scenario. In this paper, we present the expected luminosity distributions of early-time UV emission arising from SN Ia ejecta-companion interaction by performing binary population synthesis calculations for different progenitor systems in the SD scenario. Our theoretical predictions will be helpful for future early-time observations of SNe Ia to constrain their possible progenitors. Assuming the observed strong UV pulse of iPTF14atg was indeed produced by the SN ejecta-companion interaction, our population synthesis model suggests that the progenitor system of iPTF14atg is most likely a red-giant donor binary system, and it is unlikely to have been a main-sequence or helium-star donor system.
description: 11 pages, 7 figures, accepted for publication in Monthly Notices of the Royal Astronomical Society (MNRAS)
Data Privacy and Access Control in Health and Social Science Research among Vulnerable & Protected Persons: Reflections from Research at a Correctional Facility in South Africa
Creators: name: John-Langba, Johannes
name: Shishane, Kwanele
Publisher: name: Zenodo
Year: 2022

description: The need to protect the privacy of research participants in public health and social science research studies cannot be over-emphasized, particularly data collected from vulnerable populations and/or with protected sociodemographic characteristics. We investigated the associations between mental health, substance use, appetitive aggression, and recidivism among youth offenders at a correctional facility in South Africa. The research ethics committee of the South African Department of Correctional Services provides guidance on participant vulnerability and the importance of ethics and regulatory compliance including additional safeguards to protect offender and researcher rights and safety. This case study presents reflections on fieldwork and data management in a protected environment including ethical considerations related to data access, protection, and privacy. Our study validates the notion that health and social science research with incarcerated persons poses critical questions and challenges regarding privacy and data protection, especially in the context of open science. Limitations related to the implementation of data privacy and access control with implications for data documentation, discovery and interoperation of data and metadata are illustrated. Our study reflects and validates the notion that health and social science research with incarcerated persons poses critical questions and challenges regarding DDI controlled vocabularies, privacy and data protection, especially in the context of open science.
The Progenitor of the Type IIb SN 2008ax Revisited
Creators: name: Folatelli, Gastón
name: Bersten, Melina C.
name: Kuncarayakti, Hanindyo
name: Benvenuto, Omar G.
name: Maeda, Keiichi
name: Nomoto, Ken'ichi
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Hubble Space Telescope observations of the site of the supernova (SN) 2008ax obtained in 2011 and 2013 reveal that the possible progenitor object detected in pre-explosion images was in fact multiple. Four point sources are resolved in the new, higher-resolution images. We identify one of the sources with the fading SN. The other three objects are consistent with single supergiant stars. We conclude that their light contaminated the previously identified progenitor candidate. After subtraction of these stars, the progenitor appears to be significantly fainter and bluer than previously measured. Post-explosion photometry at the SN location indicates that the progenitor object has disappeared. If single, the progenitor is compatible with a supergiant star of B to mid-A spectral type, while a Wolf-Rayet (WR) star would be too luminous in the ultraviolet to account for the observations. Moreover, our hydrodynamical modelling shows the pre-explosion mass was $4-5$ $M_\odot$ and the radius was $30-50$ $R_\odot$, which is incompatible with a WR progenitor. We present a possible interacting binary progenitor computed with our evolutionary models that reproduces all the observational evidence. A companion star as luminous as an O9-B0 main-sequence star may have remained after the explosion.
description: ApJ accepted, 14 pages, 7 figures
The paths of Hope Valley: the political and social meaning of making home in a North Carolina suburb
Creators: name: Michael, Kelsey Sherrod
Publisher: name: University of North Carolina at Chapel Hill
Year: 2014

description: In this paper I examine how residents of two contiguous suburban neighborhoods in southwest Durham, North Carolina, make home. Drawing on ethnographic work conducted from 2012-2013 and theories of practice and performance, I consider how residents of these neighborhoods, each reflecting distinct phases of the development of the knowledge economy in this part of the South, make home through spatial rather than structural practices. I focus on the ways contradictory elements of the American Dream--control over private property, access to public space, exclusivity, convenience, family--play out in the everyday lives of residents through experiences of both private and public suburban spaces. Ultimately the dream's internal discord requires the same residents who invest in its ideology also to resist it, in one neighborhood by transforming and transitorily dismantling houses from within, and in the other by undermining the principle of private property they value so highly.
Gordonoryssomus everardoi Almeida & Santos, 2014, sp. nov.
Creators: name: Almeida, Lúcia M.
name: Santos, Paula B.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Coccinellidae
Gordonoryssomus
Gordonoryssomus everardoi

description: Gordonoryssomus everardoi sp. nov.
(Fig. 12)
Description of holotype (male). Length 3.44, width 2.26 mm. Form elongate oval, widest at middle of elytra, somewhat flattened dorsoventrally (Fig. 12 C). General color yellowish red, middle of thorax and abdomen dark brown. Outline of pronotum and elytron discontinuous. Pronotum yellowish red, with a basal triangular black spot, translucent at apex; finely, densely punctured; pubescence of semidecumbent yellowish hairs (Fig. 12 D). Elytra yellowish red with a large black spot, extending from the base almost to the apex, reaching the middle of humeral callus (Fig. 12 A). Elytral punctures intermixed coarse and fine, dense, slightly larger than on pronotum; sparse in the discal area. Antenna, mouthparts, hypomera, epipleura, and legs yellowish brown. Metaventrite finely, sparsely punctured medially and anteriorly, coarsely, densely punctured laterally and posteriorly with punctures large, often confluent. Abdominal ventrites coarsely punctured, punctures separated by about a diameter or less, punctures becoming coarser laterally (Fig. 12 B). First abdominal ventrite with postcoxal line extending beyond middle of first ventrite; precoxal area coarsely punctured on base of cavity (Fig. 12 E). Genitalia simple; basal lobe as longer than the parameres, lateral margin thickened and abruptly widened in apical half, apex bluntly pointed; paramere straight in lateral view, nearly parallel-sided (Fig. 12 G, H); sipho flattened and rounded apex (Fig. 12 F).
Female. Unknown.
Etymology. This species is named in honor of Dr. Everardo José Grossi, a doctor with a passion for beetles.
Discussion. The color pattern of this species is very similar with G. deyrollii, but it differs in body length, and also male genitalia, with basal lobe almost the same length as the parameres, and J-shaped sipho. It also differs from all other species of the genus by the color pattern and male genitalia.
Type material. “ BRAZIL, R.J., Nova/Friburgo, Sans Souci / 21-I-2007 1050 m / P. Grossi col.” “ ♂ ” [white label]. HOLOTYPE / Gordonoryssomus / everardoi / Almeida & Santos, 2014” [red label]. 1 ex. “DZUP/131938” [DZUP].
Geographical distribution. Nova Friburgo, Sans Souci, Rio de Janeiro, Brazil (Fig. 17).
description: Published as part of Almeida, Lúcia M. & Santos, Paula B., 2014, Synopsis of Oryssomini Gordon (Coleoptera: Coccinellidae) from the Neotropical region with new species of Oryssomus Mulsant, Pseudoryssomus Gordon and Gordonoryssomus Almeida & Lima, pp. 42-68 in Zootaxa 3846 (1) on pages 59-60, DOI: 10.11646/zootaxa.3846.1.2, http://zenodo.org/record/250860
MPEC 2023-O64 : 2023 OL1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 OL1

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Extract2DDI - open source software to extract DDI-Lifecycle from SPSS and Stata
Creators: name: Johnson, Jon
Publisher: name: Zenodo
Year: 2022

description: Building on the open source code base, developed at the UK Data Archive and subsequently further enhanced at Cornell in 2017, to develop a SPSS and Stata to DDI Codebook tool (https://github.com/ncrncornell/ced2arddigenerator). CLOSER has extended the functionality to support DDI-Lifecycle 3.2 Instance format and DDI 3.3 Fragment format. To address concerns about potential sensitivity of specific variables in a dataset, functionality has been added to exclude for specified variables its summary statistics. The software is currently at beta and available at https://github.com/CLOSER-Cohorts/Extract2DDI. The poster session willdemonstrate the software and be an opportunity to ask questiona.
Bullying, Depression, and Suicidal Behaviors in Adolescents: Secondary Analysis of Youth Risk Behavior Survey Data
Creators: name: Guo, Ping
Publisher: name: University of North Carolina at Chapel Hill
Year: 2013

description: This study aims to examine the association between bullying and suicidal behaviors in adolescents in the United States, using the 2009 National Youth Risk Behavior Survey (YRBS). The national YRBS, conducted by Centers for Disease Control (CDC), provides data representative of public and private school students from 9th to 12th grade. In this study, 16,410 usable questionnaires from 2009 National YRBS were analyzed. Logistic regression analyses were conducted to detect the association between being bullied and depression and suicidal behaviors, including suicidal ideation and suicide attempts. Also, logistic regression models were used to examine any gender effects involved in the association between being bullied and suicidal behaviors. This study found that there were association between bullying and depression and suicidal behaviors, and no significant gender differences were found in the association.
Automatic Scoring of Cognition Drawings - Assessing the quality of machine-based scores against a gold-standard
Creators: name: Bethmann, Arne
name: Hunsicker, Charlotte
name: Weileder, Claudia
name: Aoki, Marina
Publisher: name: Zenodo
Year: 2023

description: The drawing of figures is often used as part of dementia screening protocols. SHARE has adopted three drawing tests from Addenbrooke’s Cognitive Examination III as part of its questionnaire module on cognition. While the drawings are commonly scored by trained clinicians, SHARE uses the face-to-face interviewers conducting the SHARE interviews to score the drawings in the field. This might pose a risk to data quality, since interviewers might be less consistent in their scoring and more likely to make errors, due to the lack of clinical training.

 Building on preliminary results presented at the CSDI Workshop 2022 (https://doi.org/10.5281/zenodo.6414293), we compare the performance of deep learning models against a gold-standard / ground truth score developed using manual re-scoring from multiple trained raters and an arbitration process that consolidates divergences into a single score. We assume that this procedure will get the error rate reasonably close to the bayes error rate, although it certainly remains a point for further research.

 We then go on and test several convolutional neural network architectures and optimization approaches. Regarding the training data we assess the feasibility of using actual interviewer provided scores as compared to using the gold-standard itself as training data. Finally, we will also investigate whether the combination of both, using the more precise gold-standard for refining the training on the (eventually) abundant interviewer scores, might yield an efficient trade-off between precision and scoring effort.

 We are currently in the process of collecting the drawings from additional SHARE countries and waves. As soon as this is finished, we will start preparing the data for public release as a strictly anonymized datset. Likely, the final dataset will contain the three drawings for close to 50,000 cases
Modeling Decarbonization Pathways in the Power Sector in Developing Countries: The case of Colombia (EMP-LAC 2023)
Creators: name: Niño, Fernando Antonio Plazas
Publisher: name: Zenodo
Year: 2023
Subjects: OSeMOSYS
Power sector
Decarbonization
Policy planning
Energy modeling

description: Colombia requires to decarbonize the power sector in order to achieve the National Determined Contribution (NDC 2020). Variable renewable sources along with energy storage options are critical to accomplish the carbon neutrality options. Using OSeMOSYS framework, the study develops a power sector model for Colombia, and three scenarios are analyzed. The presentation summarizes the project developed as part of the EMP-LAC 2023.