cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Arborichthonius styosetosus Norton 1982
Creators: name: Behan-Pelletier, Valerie M.
name: Lindo, Zoë
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Arborichthoniidae
Arborichthonius
Arborichthonius styosetosus

description: Arborichthonius styosetosus Norton, 1982
 Geographic Location and Habitats: ON: St. Lawrence Islands NP, Thwartway Is., moist soil beneath moss (Norton 1982).
 Distribution: Nearctic; Japan; China.
 Family Trichthoniidae
 Genus Gozmanyina Balogh and Mahunka, 1983
description: Published as part of Behan-Pelletier, Valerie M. & Lindo, Zoë, 2019, Checklist of oribatid mites (Acari: Oribatida) of Canada and Alaska, pp. 1-180 in Zootaxa 4666 (1) on page 23, DOI: 10.11646/zootaxa.4666.1.1, http://zenodo.org/record/4000595
Virgo High-Resolution CO Survey :V. Circumnuclear Elliptical Ring in NGC 4569
Creators: name: Nakanishi, Hiroyuki
name: Sofue, Yoshiaki
name: Koda, Jin
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present high-resolution ($1\farcs8$ -- $4\farcs5$) CO data of the Virgo spiral galaxy NGC 4569, obtained using the Nobeyama Millimeter Array. We found that the molecular gas is highly concentrated in the circumnuclear region with two off-center peaks. A CO image with the highest angular resolution of $2\farcs0 \times 1\farcs8$ shows that six blobs likely form a circumnuclear elliptical ring (CER) with a semi-major axis radius of 720 pc. The CER shows a strongly twisted velocity field, and the position--velocity (PV) diagram shows significant forbidden velocity components. These kinetic features are understood as being non-circular motion due to a bar-potential. We found that the CER coincides with the H$α$ bright central core and that the mass ratio of the molecular gas to the dynamical mass is about 18%. These results support a gaseous inflow scenario induced by a weak bar potential and self-gravity of the gas.
description: 14 pages, 11 figures, and 6 tables
Momentum-space treatment of Coulomb interaction in three-nucleon reactions with two protons
Creators: name: Deltuva, A.
name: Fonseca, A. C.
name: Sauer, P. U.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The Coulomb interaction between the two protons is included in the calculation of proton-deuteron elastic scattering, radiative proton-deuteron capture and two-body electromagnetic disintegration of ${}^3\mathrm{He}$. The hadron dynamics is based on the purely nucleonic charge-dependent (CD) Bonn potential and its realistic extension CD Bonn + $Δ$ to a coupled-channel two-baryon potential, allowing for single virtual $Δ$-isobar excitation. Calculations are done using integral equations in momentum space. The screening and renormalization approach is employed for including the Coulomb interaction. Convergence of the procedure is found already at moderate screening radii. The reliability of the method is demonstrated. The Coulomb effect on observables is seen at low energies for the whole kinematic regime. In proton-deuteron elastic scattering at higher energies the Coulomb effect is confined to forward scattering angles; the $Δ$-isobar effect found previously remains unchanged by Coulomb. In electromagnetic reactions Coulomb competes with other effects in a complicated way.
description: 16 pages, 16 figures, submitted to Phys. Rev. C
Additional file 1 of Speaking up: a model of self-advocacy for STEM undergraduates with ADHD and/or specific learning disabilities
Creators: name: Pfeifer, Mariel A.
name: Reiter, Eve Melanie
name: Hendrickson, McKenna
name: Stanton, Julie Dangremond
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: Additional file 1: Supplemental Table 1. Components of self-advocacy codebook.
Solvent and mutation effects on the nucleation of amyloid $β$-protein folding
Creators: name: Cruz, Luis
name: Urbanc, Brigita
name: Borreguero, Jose M.
name: Lazo, Noel D.
name: Teplow, David B.
name: Stanley, H. Eugene
Publisher: name: arXiv
Year: 2005
Subjects: subject: Biomolecules (q-bio.BM)
subject: FOS: Biological sciences

description: Experimental evidence suggests that the folding and aggregation of the amyloid $β$-protein (A$β$) into oligomers is a key pathogenetic event in Alzheimer's disease (AD). Inhibiting the pathologic folding and oligomerization of A$β$ could be effective in the prevention and treatment of AD. Here, using all-atom molecular dynamics simulations in explicit solvent, we probe the initial stages of folding of a decapeptide segment of A$β$, A$β_{21-30}$, shown experimentally to nucleate the folding process. In addition, we examine the folding of a homologous decapeptide containing an amino acid substitution linked to hereditary cerebral hemorrhage with amyloidosis--Dutch type, [Gln22]A$β_{21-30}$. We find that: (i) when the decapeptide is in water, hydrophobic interactions and transient salt bridges between Lys28 and either Glu22 or Asp23 are important in the formation of a loop in the Val24--Lys28 region of the wild type decapeptide; (ii) in the presence of salt ions, salt bridges play a more prominent role in the stabilization of the loop; (iii) in water with a reduced density, the decapeptide forms a helix, indicating the sensitivity of folding to different aqueous environments; (iv) the ``Dutch'' peptide in water, in contrast to the wild type peptide, fails to form a long-lived Val24--Lys28 loop, suggesting that loop stability is a critical factor in determining whether A$β$ folds into pathologic structures. Our results are relevant to understand the mechanism of A$β$ peptide folding in different environments, such as intra- and extracellular milieus or cell membranes, and how amino acid substitutions linked to familial forms of amyloidosis cause disease.
description: 3 figures, 2 tables
Gehypochthonius gracilis Pankov 2002
Creators: name: Behan-Pelletier, Valerie M.
name: Lindo, Zoë
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Gehypochthoniidae
Gehypochthonius
Gehypochthonius gracilis

description: Gehypochthonius gracilis Pankov, 2002
 Geographic Location: AB: ABMI Sites; Moose Pasture Research Site (Walter et al. 2014).
 Distribution: Nearctic; eastern Palaearctic.
description: Published as part of Behan-Pelletier, Valerie M. & Lindo, Zoë, 2019, Checklist of oribatid mites (Acari: Oribatida) of Canada and Alaska, pp. 1-180 in Zootaxa 4666 (1) on page 24, DOI: 10.11646/zootaxa.4666.1.1, http://zenodo.org/record/4000595
Globular Clusters as Tracers of Stellar Bimodality in Elliptical Galaxies: The Case of NGC 1399
Creators: name: Forte, Juan C.
name: Faifer, Favio
name: Geisler, Doug
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Globular cluster systems (GCS) frequently show a bi-modal distribution of the cluster integrated colours. This work explores the arguments to support the idea that the same feature is shared by the diffuse stellar population of the galaxy they are associated with. In the particular case of NGC 1399 the results show that the galaxy brightness profile and colour gradient as well as the behaviour of the cumulative globular cluster specific frequency, are compatible with the presence of two dominant stellar populations, associated with the so called "blue" and "red" globular cluster families. These globular families are characterized by different intrinsic specific frequencies (defined in terms of each stellar population): Sn=3.3 +/- 0.3 in the case of the red globulars and Sn=14.3 +/- 2.5 for the blue ones. We stress that this result is not necessarily conflicting with recent works that point out a clear difference between the metallicity distribution of (resolved) halo stars and globulars when comparing their number statistics. The inferred specific frequencies imply that, in terms of their associated stellar populations, the formation of the blue globulars took place with an efficiency about 6 times higher than that corresponding to their red counterparts. The similarity of the spatial distribution of the blue globulars with that inferred for dark matter, as well as with that of the X ray emiting hot gas associated with NGC 1399, is emphasized. The impact of a relatively unconspicuous low metallicity population, that shares the properties of the blue globulars, as a possible source of chemical enrichment early in the formation history of the galaxy is also briefly discussed.
description: 15 pages; MNRAS (accepted; October 2004)
Magnetic molecular wheels and grids - the need for novel concepts in "zero-dimensional" magnetism
Creators: name: Waldmann, O.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Supramolecular chemistry has allowed the production, by self-assembly, of inorganic complexes with a [N x N] square matrix-like configuration of N^2 metal centers. Interest in these systems is driven by the potential applications in information technology suggested by such a "two-dimensional" (2D), addressable arrangement of metal ions. From the magnetic perspective, [N x N] grids constitute molecular model systems for magnets with extended interactions on a square lattice, which have gained enormous attention in the context of hightemperature superconductors. Numerous [2 x 2] grids as well as a few [3 x 3] grids with magnetic metal ions such as Cu(II), Ni(II), Co(II), Fe(II), and Mn(II) have been created. Magnetic studies unraveled a remarkable variety in their magnetic properties, which will be reviewed in this work with emphasis on the underlying physical concepts. An intriguing issue is the connection of [2 x 2] and [3 x 3] grids with "one-dimensional" (1D) rings, as experimentally realized in the molecular wheels. For a [2 x 2] square of spin centers the distinction between a 2D grid and a 1D ring is semantic, but also a [3 x 3] grid retains 1D character: it is best viewed as an octanuclear ring with an additional ion "doped" into its center. Challenging familiar concepts from conventional magnets, the current picture of elementary excitations in antiferromagnetic rings will be discussed, as a prerequisite to understand the complex [3 x 3] grids.
description: 56 pages, 21 figures, 1.7 MB .pdf file, to appear in Coordination Chemistry Reviews
Do bras and kets have dimensions?
Creators: name: Semay, Claude
name: Willemyns, Cintia
Publisher: name: arXiv
Year: 2020
Subjects: subject: Physics Education (physics.ed-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The bra and ket notation introduced by Dirac and the dimensional analysis are two powerful tools for the physicist. Curiously, almost nothing is said about connections between these two topics in the literature. We show here that bras and kets have dimensions. This could help students to grasp a better comprehension of this abstract notation.
Gehypochthonius Jacot 1936
Creators: name: Behan-Pelletier, Valerie M.
name: Lindo, Zoë
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Gehypochthoniidae
Gehypochthonius

description: Gehypochthonius sp.
 Geographic Location and Habitats: BC: Vancouver Is., Walbran Valley (Lindo & Winchester 2006); AB: Roy Berg Kinsella Research Ranch (Newton 2013).
 Family Parhypochthoniidae
 Genus Parhypochthonius Berlese, 1904
description: Published as part of Behan-Pelletier, Valerie M. & Lindo, Zoë, 2019, Checklist of oribatid mites (Acari: Oribatida) of Canada and Alaska, pp. 1-180 in Zootaxa 4666 (1) on page 24, DOI: 10.11646/zootaxa.4666.1.1, http://zenodo.org/record/4000595
Desarticulación de Políticas: Relación entre lo Económico y lo Social en Paraguay
Creators: name: Reveles, Irma Lorena Acosta
name: Viñales, Ana Teresa Rojas
Publisher: name: figshare
Year: 2020
Subjects: subject: 160512 Social Policy
subject: FOS: Political science
subject: 140202 Economic Development and Growth
subject: FOS: Economics and business
subject: 140102 Macroeconomic Theory
subject: 60305 Evolution of Developmental Systems
subject: FOS: Biological sciences

description: Since 1989 in Paraguay there have been important changes and reconfigurations in all areas. However, in the analysis of the current economic and social situation in Paraguay, the historical problem of the concentration of land and the consequences left by the dictatorship of Alfredo Stroessner cannot be ignored, situations that largely support reflection on social policies. One of the main factors recognized as the origin and center of the entire economic and social system of the country is the concentration of land. Another important issue is that Paraguay’s growth levels have remained stable in recent years and have been above the regional average, but poverty and inequality still affect a large part of the population. Situations that require the State to implement policies that guarantee the fulfilment of the rights of the people.
Gehypochthonius rhadamanthus Jacot 1936
Creators: name: Behan-Pelletier, Valerie M.
name: Lindo, Zoë
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Gehypochthoniidae
Gehypochthonius
Gehypochthonius rhadamanthus

description: Gehypochthonius rhadamanthus Jacot, 1936
 Geographic Location: YT: British Mtns (Behan-Pelletier 1997b); ON: Sudbury (St. John et al. 2002); QC: Morgan Arboretum (Marshall 1968).
 Habitats: subarctic; mixed deciduous and coniferous forest.
 Distribution: Semicosmopolitan.
description: Published as part of Behan-Pelletier, Valerie M. & Lindo, Zoë, 2019, Checklist of oribatid mites (Acari: Oribatida) of Canada and Alaska, pp. 1-180 in Zootaxa 4666 (1) on page 24, DOI: 10.11646/zootaxa.4666.1.1, http://zenodo.org/record/4000595
Parhypochthonius aphidinus Berlese 1904
Creators: name: Behan-Pelletier, Valerie M.
name: Lindo, Zoë
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Parhypochthoniidae
Parhypochthonius
Parhypochthonius aphidinus

description: Parhypochthonius aphidinus Berlese, 1904
 Geographic Location: AB: Onoway (53.77N, 114.6W); Gopher Hill (53°42’0”N, 112°45’17”) (Walter et al. 2014); ON: peatlands (Behan-Pelletier & Bissett 1994); Chalk River (Marshall 1972); QC: peatlands (Behan-Pelletier & Bissett 1994).
 Habitats: peatlands; forest litter.
 Distribution: Semicosmopolitan.
description: Published as part of Behan-Pelletier, Valerie M. & Lindo, Zoë, 2019, Checklist of oribatid mites (Acari: Oribatida) of Canada and Alaska, pp. 1-180 in Zootaxa 4666 (1) on page 24, DOI: 10.11646/zootaxa.4666.1.1, http://zenodo.org/record/4000595
Optimising LSST Observing Strategy for Weak Lensing Systematics
Creators: name: Almoubayyed, Husni
name: Mandelbaum, Rachel
name: Awan, Humna
name: Gawiser, Eric
name: Jones, R. Lynne
name: Meyers, Joshua
name: Tyson, J. Anthony
name: Yoachim, Peter
name: Collaboration, The LSST Dark Energy Science
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The LSST survey will provide unprecedented statistical power for measurements of dark energy. Consequently, controlling systematic uncertainties is becoming more important than ever. The LSST observing strategy will affect the statistical uncertainty and systematics control for many science cases; here, we focus on weak lensing systematics. The fact that the LSST observing strategy involves hundreds of visits to the same sky area provides new opportunities for systematics mitigation. We explore these opportunities by testing how different dithering strategies (pointing offsets and rotational angle of the camera in different exposures) affect additive weak lensing shear systematics on a baseline operational simulation, using the $ρ-$statistics formalism. Some dithering strategies improve systematics control at the end of the survey by a factor of up to $\sim 3-4$ better than others. We find that a random translational dithering strategy, applied with random rotational dithering at every filter change, is the most effective of those strategies tested in this work at averaging down systematics. Adopting this dithering algorithm, we explore the effect of varying the area of the survey footprint, exposure time, number of exposures in a visit, and exposure to the Galactic plane. We find that any change that increases the average number of exposures (in filters relevant to weak lensing) reduces the additive shear systematics. Some ways to achieve this increase may not be favorable for the weak lensing statistical constraining power or for other probes, and we explore the relative trade-offs between these options given constraints on the overall survey parameters.
description: 15 pages, 10 figures
Additional file 1 of Metformin sensitizes therapeutic agents and improves outcome in pre-clinical and clinical diffuse large B-cell lymphoma
Creators: name: Singh, Anil R.
name: Gu, Juan J.
name: Qunling Zhang
name: Pallawi Torka
name: Sundaram, Suchitra
name: Mavis, Cory
name: Hernandez-Ilizaliturri, Francisco J.
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Cancer
subject: Hematology

description: Additional file 1: Supplemental Table 1. Descriptive statistics of 16 patient samples treated at Roswell Park Comprehensive Cancer Center. Primary neoplastic B-cells were isolated from pre-treatment biopsy tissue obtained from 16 patients with previously untreated (N=9) or relapsed/refractory (N=7) B-cell NHL receiving therapy at Roswell Park Comprehensive Cancer Center (RPCCC). Samples from patient biopsy specimens were procured under Institutional Review Board (IRB) RPCCC protocols I42804 and I42904. Tissue specimens were placed in PBS-containing collagenase type IV (1mg/ml; Sigma-Aldrich, St. Louis, MO) and incubated for 15 minutes at 37°C, followed by manual agitation for five minutes. Next, samples were diluted with RPMI 1640-containing 10% fetal bovine serum (FBS) and the cell suspension filtered through a 100μm cell strainer to remove large clumps. Lymphocytes were enriched by density centrifugation. B-cells were then isolated from enriched lymphocytes by MACS separation using a human B-cell Isolation Kit II (Miltenyi Biotec, Gladbach, Germany).
The prestellar and protostellar population of R Coronae Australis
Creators: name: Nutter, David J.
name: Ward-Thompson, D.
name: Andre, P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present 450 and 850 um maps of R Coronae Australis. We compare the maps to previous surveys of the region, and shed new light on the previously unknown nature of the protostellar sources at the centre of the cloud. We clarify the nature of two millimetre sources previously discovered in lower resolution data. We identify one new Class 0 protostar that we label SMM 1B, and we measure the envelope masses of a number of more evolved protostars. We identify two new prestellar cores that we call SMM 1A and SMM 6.
description: 8 pages
Consequence for Wavefunction Collapse Model of the Sudbury Neutrino Observatory Experiment
Creators: name: Jones, Gordon
name: Pearle, Philip
name: Ring, James
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It is shown that data on the dissociation rate of deuterium obtained in an experiment at the Sudbury Neutrino Observatory provides evidence that the Continuous Spontaneous Localization wavefunction collapse model should have mass--proportional coupling to be viable.
description: 8 pages
Parhypochthonius aphidinus subsp. octofilamentis Jacot 1938
Creators: name: Behan-Pelletier, Valerie M.
name: Lindo, Zoë
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Parhypochthoniidae
Parhypochthonius
Parhypochthonius aphidinus
Parhypochthonius aphidinus octofilamentis jacot, 1938

description: Parhypochthonius aphidinus octofilamentis Jacot, 1938
 Geographic Location: QC: Morgan Arboretum (Marshall 1968).
 Habitats: mixed deciduous coniferous forest.
 Distribution: Nearctic.
 Parhypochthonius aphidinus sp. nr. octofilamentis Jacot, 1938 Geographic Location: BC: Vancouver Is., Walbran Valley (Lindo & Winchester 2006).
description: Published as part of Behan-Pelletier, Valerie M. & Lindo, Zoë, 2019, Checklist of oribatid mites (Acari: Oribatida) of Canada and Alaska, pp. 1-180 in Zootaxa 4666 (1) on page 24, DOI: 10.11646/zootaxa.4666.1.1, http://zenodo.org/record/4000595
$\mathbb{Z}_2$-projective translational symmetry protected topological phases
Creators: name: Zhao, Y. X.
name: Huang, Yue-Xin
name: Yang, Shengyuan A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Symmetry is fundamental to topological phases. In the presence of a gauge field, spatial symmetries will be projectively represented, which may alter their algebraic structure and generate novel topological phases. We show that the $\mathbb{Z}_2$ projectively represented translational symmetry operators adopt a distinct commutation relation, and become momentum dependent analogous to twofold nonsymmorphic symmetries. Combined with other internal or external symmetries, they give rise to many exotic band topology, such as the degeneracy over the whole boundary of the Brillouin zone, the single fourfold Dirac point pinned at the Brillouin zone corner, and the Kramers degeneracy at every momentum point. Intriguingly, the Dirac point criticality can be lifted by breaking one primitive translation, resulting in a topological insulator phase, where the edge bands have a Möbius twist. Our work opens a new arena of research for exploring topological phases protected by projectively represented space groups.
description: 8 pages, 4 figures
Moduli of Quanta
Creators: name: Isidro, J. M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The classical phase of the matrix model of 11-dimensional M-theory is complex, infinite-dimensional Hilbert space. As a complex manifold, the latter admits a continuum of nonequivalent, complex-differentiable structures that can be placed in 1-to-1 correspondence with families of coherent states in the Hilbert space of quantum states. The moduli space of nonbiholomorphic complex structures on classical phase space turns out to be an infinite-dimensional symmetric space. We argue that each choice of a complex differentiable structure gives rise to a physically different notion of an elementary quantum.
Strzygowski, Josef, Der Dom zu Aachen und seine Entstellung
Creators: name: Baumstark, Anton
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 3 Nr. 2 (1903): Oriens christianus, Band 3, Heft 2
Asymmetric D-braneworld
Creators: name: Takahashi, Keitaro
name: Shiromizu, Tetsuya
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In recent papers on Randall-Sundrum D-braneworld model with Z_2 symmetry, it was shown that the effective gravity does not work as usual, that is, the gravity does not couple to the gauge field localised on the brane in a usual way. At first glance there are two possibilities to avoid this serious problem. One is to remove the Z_2 symmetry and another is to consider a non-BPS state. In this paper we analyze the Randall-Sundrum D-braneworld model without Z_2 symmetry by long wave approximation. The result is unexpected one, that is, the gauge field does not couple to the gravity on the brane in the leading order again. Therefore the remaining possibility to recover the conventional gravitational theory would be non-BPS cases.
description: 6 pages
Granderath, Th. / Kirch, K. (Hrsg.), Geschichte des vatikanischen Konzils von seiner ersten Ankündigung bis zu seiner Vertagung
Creators: name: Baumstark, Anton
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 3 Nr. 2 (1903): Oriens christianus, Band 3, Heft 2
Pointwise densities of homogeneous Cantor measure and critical values
Creators: name: Kong, Derong
name: Li, Wenxia
name: Yao, Yuanyuan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Dynamical Systems (math.DS)
subject: Classical Analysis and ODEs (math.CA)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: Let $N\ge 2$ and $ρ\in(0,1/N^2]$. The homogenous Cantor set $E$ is the self-similar set generated by the iterated function system \[ \left\{f_i(x)=ρx+\frac{i(1-ρ)}{N-1}: i=0,1,\ldots, N-1\right\}. \] Let $s=\dim_H E$ be the Hausdorff dimension of $E$, and let $μ=\mathcal H^s|_E$ be the $s$-dimensional Hausdorff measure restricted to $E$. In this paper we describe, for each $x\in E$, the pointwise lower $s$-density $Θ_*^s(μ,x)$ and upper $s$-density $Θ^{*s}(μ, x)$ of $μ$ at $x$. This extends some early results of Feng et al. (2000). Furthermore, we determine two critical values $a_c$ and $b_c$ for the sets \[ E_*(a)=\left\{x\in E: Θ_*^s(μ, x)\ge a\right\}\quad\textrm{and}\quad E^*(b)=\left\{x\in E: Θ^{*s}(μ, x)\le b\right\} \] respectively, such that $\dim_H E_*(a)>0$ if and only if $a0$ if and only if $b>b_c$. We emphasize that both values $a_c$ and $b_c$ are related to the Thue-Morse type sequences, and our strategy to find them relies on ideas from open dynamics and techniques from combinatorics on words.
description: 30 pages, 1 figure and 1 table
Parhypochthonius Berlese 1904
Creators: name: Behan-Pelletier, Valerie M.
name: Lindo, Zoë
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Parhypochthoniidae
Parhypochthonius

description: Parhypochthonius sp.
 Geographic Location: NS: Cape Breton Highlands NP (Behan-Pelletier 2010; Behan-Pelletier et al. 1987).
 Infraorder Mixonomata
 Superfamily Eulohmannioidea
 Family Eulohmanniidae
 Genus Eulohmannia Berlese, 1910
description: Published as part of Behan-Pelletier, Valerie M. & Lindo, Zoë, 2019, Checklist of oribatid mites (Acari: Oribatida) of Canada and Alaska, pp. 1-180 in Zootaxa 4666 (1) on page 24, DOI: 10.11646/zootaxa.4666.1.1, http://zenodo.org/record/4000595
Schwarzschild black hole surrounded by quintessential matter field as an accelerator for spinning particles
Creators: name: Sheoran, Pankaj
name: Nandan, Hemwati
name: Hackmann, Eva
name: Nucamendi, Ulises
name: Abebe, Amare
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the collision of two massive particles with non-zero intrinsic spin moving in the equatorial plane in the background of a Schwarzschild black hole surrounded by quintessential matter field (SBHQ). For the quintessential matter equation of state (EOS) parameter, we assume three different values. It is shown that for collisions outside the event horizon, but very close to it, the centre-of-mass energy ($E_{\rm CM}$) can grow without bound if exactly one of the colliding particles is what we call near-critical, i.e., if its constants of motion are fine tuned such that the time component of its four-momentum becomes very small at the horizon. In all other cases, $E_{\rm CM}$ only diverges behind the horizon if we respect the Møller limit on the spin of the particles. We also discuss radial turning points and constraints resulting from the requirement of subluminal motion of the spinning particles.
description: 15 pages, 6 figures, New discussions added, to match with the published version in PRD
Integrating school reform and school-community development : four case studies from South African schools : April 1994-June 2000
Creators: name: Schofield, Andrew Mark.
Publisher: name: University of British Columbia
Year: 2009

description: By 1994 education in South Africa had collapsed (TRC, 1998; CCOLT, 1996). In response, South Africa's first non-racial government initiated a wide ranging School Reform (SR) program. However, almost a decade after the reforms commenced there have been very few substantial changes in the majority of South African schools: The Education Rights Project (2003a) and the South African Human Rights Commission argue that SR is failing the majority of South Africans. This thesis explores an alternative, School-Community Development (SCD), that integrates school reforms with programs that draw members of the school's neighbouring community (the "school-community") into the process of changing schools. I argue that SR is an inadequate response to the problems that confront schools. Using the case study method I show that SR is enhanced when integrated with locally developed social, cultural, economic, and school development programs. The thesis makes two contributions to the literature. First, the thesis challenges the "simplistic solutions to educational problems" (Anyon, 1997, p. 12) that constitute SR. Second, the thesis presents a materially grounded critique of SR in South Africa that evokes the "multiple voices" (Sayed, 2002, p. 32) from the four case study schools. Accordingly, our understanding of "making change work at the micro level", a neglected area of South African educational research (Sayed and Jansen, 2001, p. 7), is enhanced.
Similarity transformations for Nonlinear Schrodinger Equations with time varying coefficients: Exact results
Creators: name: Perez-Garcia, Victor M.
name: Torres, Pedro J.
name: Konotop, Vladimir V.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: In this paper we use a similarity transformation connecting some families of Nonlinear Schrodinger equations with time-varying coefficients with the autonomous cubic nonlinear Schrodinger equation. This transformation allows one to apply all known results for that equation to the non-autonomous case with the additional dynamics introduced by the transformation itself. In particular, using stationary solutions of the autonomous nonlinear Schrodinger equation we can construct exact breathing solutions to multidimensional non-autonomous nonlinear Schrodinger equations. An application is given in which we explicitly construct time dependent coefficients leading to solutions displaying weak collapse in three-dimensional scenarios. Our results can find physical applicability in mean field models of Bose-Einstein condensates and in the field of dispersion-managed optical systems.
An assessment of the structural resolution of various fingerprints commonly used in machine learning
Creators: name: Parsaeifard, Behnam
name: De, Deb Sankar
name: Christensen, Anders S.
name: Faber, Felix A.
name: Kocer, Emir
name: De, Sandip
name: Behler, Joerg
name: von Lilienfeld, Anatole
name: Goedecker, Stefan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Atomic environment fingerprints are widely used in computational materials science, from machine learning potentials to the quantification of similarities between atomic configurations. Many approaches to the construction of such fingerprints, also called structural descriptors, have been proposed. In this work, we compare the performance of fingerprints based on the Overlap Matrix(OM), the Smooth Overlap of Atomic Positions (SOAP), Behler-Parrinello atom-centered symmetry functions (ACSF), modified Behler-Parrinello symmetry functions (MBSF) used in the ANI-1ccx potential and the Faber-Christensen-Huang-Lilienfeld (FCHL) fingerprint under various aspects. We study their ability to resolve differences in local environments and in particular examine whether there are certain atomic movements that leave the fingerprints exactly or nearly invariant. For this purpose, we introduce a sensitivity matrix whose eigenvalues quantify the effect of atomic displacement modes on the fingerprint. Further, we check whether these displacements correlate with the variation of localized physical quantities such as forces. Finally, we extend our examination to the correlation between molecular fingerprints obtained from the atomic fingerprints and global quantities of entire molecules.
description: 18 pages, 11 figures
Hololohmannia alaskensis Kubota and Aoki 1998
Creators: name: Behan-Pelletier, Valerie M.
name: Lindo, Zoë
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Perlohmaniidae
Hololohmannia
Hololohmannia alaskensis

description: Hololohmannia alaskensis Kubota and Aoki, 1998
 Geographic Location: AK: Eagle Summit, 65°30’N, 145°W (Kubota & Aoki 1998).
 Habitat: alpine tundra from mosses, lichens and fern growing on rocks.
 Distribution: Alaska.
 Genus Perlohmannia Berlese, 1916
description: Published as part of Behan-Pelletier, Valerie M. & Lindo, Zoë, 2019, Checklist of oribatid mites (Acari: Oribatida) of Canada and Alaska, pp. 1-180 in Zootaxa 4666 (1) on page 25, DOI: 10.11646/zootaxa.4666.1.1, http://zenodo.org/record/4000595
Perlohmannia Berlese 1916
Creators: name: Behan-Pelletier, Valerie M.
name: Lindo, Zoë
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Perlohmaniidae
Perlohmannia

description: Perlohmannia sp. nr. coiffaiti Grandjean, 1961
 Geographic Location: AK: Denali NP; Fairbanks Region; Aleutian Islands (Behan 1978a); Elliott Highway Burn (65°19’N, 149°06’W), Chandalar (68°00’N, 149°45’W), (Thomas & McLean 1988); YT: Porcupine Plain; Richardson Mtns; Ogilvie Mtns (Behan-Pelletier 1997b); NT: Mackenzie Delta (Behan 1978a; Behan & Hill 1978); NS: Cape Breton Highlands NP (Behan-Pelletier 2010; Behan-Pelletier et al. 1987).
description: Published as part of Behan-Pelletier, Valerie M. & Lindo, Zoë, 2019, Checklist of oribatid mites (Acari: Oribatida) of Canada and Alaska, pp. 1-180 in Zootaxa 4666 (1) on page 25, DOI: 10.11646/zootaxa.4666.1.1, http://zenodo.org/record/4000595
Phonons and Lithium diffusion in LiAlO$_2$
Creators: name: Gupta, Mayanak K.
name: Mittal, Ranjan
name: Singh, Baltej
name: Delaire, Olivier
name: Achary, Srungarpu N.
name: Rols, Stephane
name: Tyagi, Avesh K.
name: Chaplot, Samrath L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report on investigations of phonons and lithium diffusion in LiAlO$_2$ based on inelastic neutron scattering (INS) measurements of the phonon density of states (DOS) in γ-LiAlO$_2$ from 473 K to 1073 K, complemented with ab-initio molecular dynamics (AIMD) simulations. We find that phonon modes related to Li vibrations broaden on warming as reflected in the measured phonon DOS and reproduced in simulations. Further, the AIMD simulations probe the nature of lithium diffusion in the perfect crystalline phase (γ-LiAlO$_2$), as well as in a structure with lithium vacancies and a related amorphous phase. Almost liquid-like super-ionic diffusion is observed in AIMD simulations of the three structures at high temperatures; with predicted onset temperatures of 1800 K, 1200 K, and 600 K in the perfect structure, vacancy structure and the amorphous phase, respectively. In the ideal structure, the Li atoms show correlated jumps; while simple and correlated jumps are both seen in the vacancy structure, and a mix of jumps and continuous diffusion occur in the amorphous structure. Further, we find that the Li-diffusion is favored in all cases by a large librational amplitude of the neighbouring AlO4 tetrahedra, and that the amorphous structure opens additional diffusion pathways due to a broad distribution of AlO4 tetrahedra orientations.
description: 31 Pages, 14 figures
Spin dynamics in the stripe phase of the cuprates
Creators: name: Andersen, Brian M.
name: Hedegard, Per
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Within a model that supports stripe spin and charge order coexisting with a d$_{x^2-y^2}$-wave superconducting phase, we study the self-consistently obtained electronic structure and the associated transverse dynamical spin susceptibility. In the coexisting phase of superconducting and static stripe order, the resulting particle-hole continuum can strongly damp parts of the low-energy spin wave branches. This provides insight into recent inelastic neutron scattering data revealing the dispersion of the low-energy collective magnetic modes of lanthanum based cuprate superconductors.
description: 4 pages, 3 figures
Effects of the electron-phonon coupling near and within the insulating Mott phase
Creators: name: Perroni, C. A.
name: Cataudella, V.
name: De Filippis, G.
name: Ramaglia, V. Marigliano
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The role of the electron-phonon interaction in the Holstein-Hubbard model is investigated in the metallic phase close to the Mott transition and in the insulating Mott phase. The model is studied by means of a variational slave boson technique. At half-filling, mean-field static quantities are in good agreement with the results obtained by numerical techniques. By taking into account gaussian fluctuations, an analytic expression of the spectral density is derived in the Mott insulating phase showing that an increase of the electron-phonon coupling leads to a sensitive reduction of the Mott gap through a reduced effective repulsion. The relation of the results with recent experimental observations in strongly correlated systems is discussed.
description: 4 pages, 4 figures
Zipping Segment Trees
Creators: name: Barth, Lukas
name: Wagner, Dorothea
Publisher: name: arXiv
Year: 2020
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: Stabbing queries in sets of intervals are usually answered using segment trees. A dynamic variant of segment trees has been presented by van Kreveld and Overmars, which uses red-black trees to do rebalancing operations. This paper presents zipping segment trees - dynamic segment trees based on zip trees, which were recently introduced by Tarjan et al. To facilitate zipping segment trees, we show how to uphold certain segment tree properties during the operations of a zip tree. We present an in-depth experimental evaluation and comparison of dynamic segment trees based on red-black trees, weight-balanced trees and several variants of the novel zipping segment trees. Our results indicate that zipping segment trees perform better than rotation-based alternatives.
description: Accepted for publication at SEA 2020
Additional file 1 of Using item response theory (IRT) to improve the efficiency of the Simple Clinical Colitis Activity Index (SCCAI) for patients with ulcerative colitis
Creators: name: Walsh, Alissa
name: Cao, Rena
name: Wong, Darren
name: Kantschuster, Ramona
name: Matini, Lawrence
name: Wilson, Jean
name: Kormilitzin, Andrey
name: South, Matthew
name: Travis, Simon
name: Bauermeister, Sarah
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 1. Item Response Theory and Mathematical Assumptions of a 7-item Model.
Additional file 1 of The impact of sleep disorders on microvascular complications in patients with type 2 diabetes (SLEEP T2D): the protocol of a cohort study and feasibility randomised control trial
Creators: name: Antza, Christina
name: Ottridge, Ryan
name: Smitaa Patel
name: Slinn, Gemma
name: Tearne, Sarah
name: Nicholls, Matthew
name: Cooper, Brendan
name: Ali, Asad
name: Tahrani, Abd A.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Cancer
subject: Science Policy

description: Additional file 1. Detailed description of the outcome measures and assessments.
Studies on the readability and on the detection rate in a Mach-Zehnder interferometer-based implementation for high-rate, long-distance QKD protocols
Creators: name: Papapanos, Christos
name: Zavitsanos, Dimitris
name: Raptakis, Adam
name: Giannoulis, Giannis
name: Kouloumentas, Christos
name: Avramopoulos, Hercules
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the way that chromatic dispersion affects the visibility and the synchronization on Quantum Key Distribution (QKD) protocols in a widely-used setup based on the use of two fiber-based Mach-Zehnder (MZ) interferometers at transmitter/receiver stations. We identify the necessary conditions for the path length difference between the two arms of the interferometers for achieving the desired visibility given the transmission distance -- where the form of the detector's window can be considered. We also associate the above limitations with the maximum detection rate that can be recorded in our setup, including the quantum non-linearity phenomenon, and to the maximum time window of the detector's gate. Exploiting our results we provide two methods, depending on the clock rate of the setup, to perform chromatic dispersion compensation techniques to the signal for keeping the correct order of the transmitted symbols. At the end, we apply our theoretical outcomes in a more realistic QKD deployment, considering the case of phase-encoding BB84 QKD protocol, which is widely used. Our proposed methods, depending on the transmission distance and on the photon emission rate at transmitter station, can be easily generalized to every fiber-optic QKD protocol, for which the discrimination of each symbol is crucial.
description: 14 pages, 12 figures
Perlohmannia Berlese 1916
Creators: name: Behan-Pelletier, Valerie M.
name: Lindo, Zoë
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Perlohmaniidae
Perlohmannia

description: Perlohmannia sp.
 Geographic Location: BC: Vancouver Is., Clayoquot Sound UNESCO Biodiversity Reserve (Lindo & Winchester 2009).
 Superfamily Epilohmannioidea
 Family Epilohmanniidae
 Genus Epilohmannia Berlese, 1910
description: Published as part of Behan-Pelletier, Valerie M. & Lindo, Zoë, 2019, Checklist of oribatid mites (Acari: Oribatida) of Canada and Alaska, pp. 1-180 in Zootaxa 4666 (1) on page 25, DOI: 10.11646/zootaxa.4666.1.1, http://zenodo.org/record/4000595
A planar magneto-inductive lens for three-dimensional subwavelength imaging
Creators: name: Freire, Manuel J.
name: Marques, Ricardo
Publisher: name: arXiv
Year: 2005
Subjects: subject: Optics (physics.optics)
subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: A planar near-field magnetoinductive lens operating in the microwave range is presented. The proposed device consists of two parallel planar arrays of metallic broadside coupled (BC-) split ring resonators (SRRs), or BC-SRRs. Power coming from a point-like source located in front of the lens is focused into a receiver located in free space behind the device. This focus is clearly removed from the back side of the lens, and has a size which is an order of magnitude smaller than the free space wavelength of the incoming radiation. The imaging properties of the device mainly relies on the excitation of magnetoinductive surface waves on the BC-SRR arrays. By simply scaling the BC-SRRs size, as well as the arrays periodicity, the frequency of operation of the device can be tuned over a wide frequency range. Thus the proposed design is potentially useful for many applications ranging from megahertzs to terahertzs.
description: 14 pages, 3 figures, submitted to Applied Physics Letters
Fluid simulation studies of the dynamical behaviour of one dimensional relativistic electromagnetic solitons
Creators: name: Saxena, Vikrant
name: Das, Amita
name: Sen, Abhijit
name: Kaw, Predhiman
Publisher: name: arXiv
Year: 2005
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: A numerical fluid simulation investigation of the temporal evolution of a special class of traveling wave solution of the one dimensional relativistic cold plasma model is reported.The solutions consist of coupled electromagnetic and plasma waves in a solitary pulse shape (Phys. Rev. Lett. 68, 3172(1992); Phys. Plasmas 9, 1820(2002)).Issues pertaining to their stability, mutual collisional interactions and propagation in an inhomogeneous plasma medium are addressed. It is found that solitary pulses that consist of a single light peak trapped in a modulated density structure are long lived whereas structures with multiple peaks of trapped light develop an instability at the trailing edge. The interaction properties of two single peak structures show interesting dependencies on their relative amplitudes and propagation speeds and can be understood in terms of their propagation characteristics in an inhomogeneous plasma medium.
Universal Upper Estimate for Prediction Errors under Moderate Model Uncertainty
Creators: name: Kaszás, Bálint
name: Haller, George
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We derive universal upper estimates for model-prediction error under moderate but otherwise unknown model uncertainty. Our estimates give upper bounds on the leading order trajectory-uncertainty arising along model trajectories, solely as functions of the invariants of the known Cauchy-Green strain tensor of the model. Our bounds turn out to be optimal, which means that they cannot be improved for general systems. The quantity relating the leading-order trajectory-uncertainty to the model uncertainty is the Model Sensitivity, which we find to be a useful tool for a quick global assessment of the impact of modeling uncertainties in various domains of the phase space. Examining the expectation that Finite-Time Lyapunov Exponents capture sensitivity to modeling errors, we show that this does not generally follow. However, we find that certain important features of the FTLE persist in the MS field.