cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Many Triangles with Few Edges
Creators: name: Kirsch, R.
name: Radcliffe, A. J.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: Extremal problems concerning the number of independent sets or complete subgraphs in a graph have been well studied in recent years. Cutler and Radcliffe proved that among graphs with $n$ vertices and maximum degree at most $r$, where $n = a(r+1)+b$ and $0 \le b \le r$, $aK_{r+1}\cup K_b$ has the maximum number of complete subgraphs, answering a question of Galvin. Gan, Loh, and Sudakov conjectured that $aK_{r+1}\cup K_b$ also maximizes the number of complete subgraphs $K_t$ for each fixed size $t \ge 3$, and proved this for $a = 1$. Cutler and Radcliffe proved this conjecture for $r \le 6$. We investigate a variant of this problem where we fix the number of edges instead of the number of vertices. We prove that $aK_{r+1}\cup \mathcal{C}(b)$, where $\mathcal{C}(b)$ is the colex graph on $b$ edges, maximizes the number of triangles among graphs with $m$ edges and any fixed maximum degree $r\le 8$, where $m = a \binom{r+1}{2} + b$ and $0 \le b < \binom{r+1}{2}$.
Skyrmion robustness in non-centrosymmetric magnets with axial symmetry: The role of anisotropy and tilted magnetic fields
Creators: name: Leonov, A. O.
name: Kézsmárki, I.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate the stability of Néel skyrmions against tilted magnetic fields, in polar magnets with uniaxial anisotropy ranging from easy-plane to easy-axis type. We construct the corresponding phase diagrams and investigate the internal structure of skewed skyrmions with displaced cores. We find that moderate easy-plane anisotropy increases the stability range of Néel skyrmions for fields along the symmetry axis, while moderate easy-axis anisotropy enhances their robustness against tilted magnetic fields. We stress that the direction, along which the skyrmion cores are shifted, depends on the symmetry of the underlying crystal lattice. The cores of Néel skyrmions, realized in polar magnets with C$_{nv}$ symmetry, are displaced either along or opposite to the off-axis (in-plane) component of the magnetic field depending on the rotation sense of the magnetization, dictated by the sign of the Dzyaloshinskii constant. The core shift of antiskyrmions, present in chiral magnets with D$_{2d}$ symmetry, depends on the in-plane orientation of the magnetic field and can be parallel, anti-parallel, or perpendicular to it. We argue that the role of anisotropy in magnets with axially symmetric crystal structure is different from that in cubic helimagnets. Our results can be applied to address recent experiments on polar magnets with C$_{3v}$ symmetry, GaV$_4$S$_8$ and GaV$_4$Se$_8$.
Dipole Anisotropy in the COBE DMR First-Year Sky Maps
Creators: name: Kogut, A.
name: Lineweaver, C.
name: Smoot, G. F.
name: Bennett, C. L.
name: Banday, A.
Publisher: name: arXiv
Year: 1993
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a determination of the cosmic microwave background dipole amplitude and direction from the COBE Differential Microwave Radiometers (DMR) first year of data. Data from the six DMR channels are consistent with a Doppler-shifted Planck function of dipole amplitude Delta T = 3.365 +/-0.027 mK toward direction (l,b) = (264.4 +/- 0.3 deg, 48.4 +/- 0.5 deg). The implied velocity of the Local Group with respect to the CMB rest frame is 627 +/- 22 km/s toward (l,b) = (276 +/- 3 deg, 30 +/- 3 deg). DMR has also mapped the dipole anisotropy resulting from the Earth's orbital motion about the Solar system barycenter, yielding a measurement of the monopole CMB temperature at 31.5, 53, and 90 GHz, to be 2.75 +/- 0.05 K.
description: Post Script (4 figures) Ap J 419, 1-6 (1993)
Research Methodology Education: A cross-sectional survey on Practices and Attitudes across the European Context
Creators: name: De Boer, Michiel
name: Kniffert, Silke
name: Buljan, Ivan
Publisher: name: OSF Registries
Year: 2024
Subjects: subject: Physical Sciences and Mathematics
subject: Medicine and Health Sciences
subject: Life Sciences
subject: Arts and Humanities
subject: Social and Behavioral Sciences
subject: Law
subject: FOS: Law
subject: education
subject: research methodology
subject: teaching research methods

description: Background
Research methodology education is, in various forms, part of the majority of higher education programs. While not all programs are focused on delivering future researchers, a certain amount of time in the curriculum usually has to be dedicated to teaching critical thinking, research approaches, methods and interpretation. However, there is currently a lack of comprehensive overview of information on the amount and level of research methodology education within the existing curricula, as well as on techniques and tools used for teaching research methodology.
Comparing approaches of teaching of research methodology would be very beneficial for higher education, because it enables the identification of differences and commonalities in perspectives on knowledge, experiences and attitudes. Moreover, identification of good practices could lead to implementation of evidence-based and more standardized approaches which would maximize the impact of teaching practices.
A large survey study on European higher education teaching practices and policies in general has shown that there are large differences across Europe and that there could be benefits in harmonizing and collaborating (learning from each other) (Gaebel et al., 2018). This suggests that there may also be differences in perspectives on and practices of research methodology education across Europe and when comparing different disciplines. The potential future of education in Europe could be focused on minimum requirements for research methodology knowledge, with openly available materials and international collaboration (Nascimbeni et al., 2020). The initial step would be the mapping of the area to identify potential discrepancies and to determine the frequency of use of effective techniques in teaching, like flipped classrooms (Hew et al., 2021).
The objective of this study is to examine practices and attitudes regarding teaching research methodology in different European countries, across different disciplines and different training stages to identify commonalities and discrepancies. This research will serve as the initial approach in creation of minimum criteria for teaching research methodology with evidence-based teaching approach.
Dyson summation without violating Ward identities and the Goldstone-boson equivalence theorem
Creators: name: Denner, Ansgar
name: Dittmaier, Stefan
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In contrast to the conventional treatment of gauge theories, in the background-field method the Ward identities for connected Green functions are not violated by Dyson summation of self-energies in finite orders of perturbation theory. Thus, Dyson summation does not spoil gauge cancelations at high energies which are ruled by the Goldstone-boson equivalence theorem. Moreover, in the background-field method the precise formulation of the equivalence theorem in higher orders (including questions of renormalization) is simplified rendering actual calculations easier. Finally, the equivalence theorem is also formulated for the Standard Model with a non-linearly realized scalar sector and for the gauged non-linear $σ$-model.
description: 26 pages, latex, complete ps-file available via anonymous ftp from ftp://ftp.physik.uni-wuerzburg.de/pub/preprint/1996/WUE-ITP-96-002.ps, reference added and some comments on Ref.[6] modified
Loeflingia hispanica Linnaeus, 1753, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Caryophyllales
Caryophyllaceae
Loeflingia
Loeflingia hispanica

description: Loeflingia hispanica, spec. nov.
1. Loeflingia.
 Illecebrum procumbens ramosum, floribus lateralibus imbricatis. Loefl. descr. VI.34.
 Habitat in Hispaniae collibus apricis. ☉
 Caules profusi Schleranthi s. Herniariae, viscidi. Folia subulata, brevissima, utrinque dente notata. Spicae breves, squarrosae, axillares, Bracteis imbricatis, subulatis, dentatis.
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on page 35, DOI: 10.5281/zenodo.3931989
Anisotropies of Cosmic Background Radiation from a Local Collapse
Creators: name: Wu, Xiang-Ping
name: Fang, Li-Zhi
Publisher: name: arXiv
Year: 1993
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present an exact solution of the anisotropies of cosmic background radiation (CBR) from a local collapse described by a spherical over-dense region embedded in a flat universe, with the emphasis on the relationship between the dipole $(Δ{\sf T}/{\sf T})_d$ and the quadrupole $(Δ{\sf T}/{\sf T})_q$ anisotropy. This result has been used to examine the kinematic quadrupole correction $(Δ{\sf T}/{\sf T})_q=(Δ{\sf T}/{\sf T})_d^2/2$, which is usually applied to remove the contamination of the quadrupole produced by local density inhomogeneities when finding the cosmic amplitude of the quadrupole at the surface of last scattering. We have found that the quadrupole of local collapse origin cannot always be approximately described by the kinematic quadrupole. Our numerical result shows that the difference between the kinematic and local quadrupoles depends on the size and matter density in the peculiar field, and the position of the observer. For a given dipole, the local quadrupole can be different from the kinematic quadrupole by a factor as large as 3. Therefore, the kinematic quadrupole correction remains an uncertain factor in the determination of the amplitude of a cosmic quadrupole. Nevertheless, a preliminary analysis shows that this uncertainty might not dramatically change the cosmological origin of the COBE-DMR's quadrupole, unless a huge peculiar gravitational field is assumed.
description: 19 pages, 1 figure (not included), ApJ in press, OPM-Preprint 93042
Triethylenetetramine/hydroxyethyl cellulose-functionalized graphene oxide monoliths for the removal of copper and arsenate ions
Creators: name: Jin, Tao
name: Easton, Christopher D.
name: Yin, Hong
name: Malisja De Vries
name: Xiaojuan Hao
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology

description: Nitrogen-doped graphene oxide monoliths (GOMs) were readily constructed by crosslinking graphene oxide (GO) using triethylenetetramine (TETA) and hydroxyethyl cellulose (HEC). The addition of HEC was beneficial to the formation of a network structure when the amount of TETA was reduced, compared to that in the absence of HEC. Depending on the interaction among TETA, HEC, and GO sheets, the generated monoliths have shown various morphologies with different d spacing, layer thickness, and micropore size. Fourier transform infrared (FTIR) and X-ray photoelectron spectroscopy (XPS) analyses provided evidences for the formation of covalent C-N bonds and some nitrogen-containing heterocyclic composition inside the graphene oxide sheet, indicating that the interaction of GO with the amine crosslinker involved the crosslinking reaction between GO epoxides and amine groups. HEC was also involved in the N-doping reaction via the partial reduction of oxygen in HEC molecules. Analysis of X-ray diffraction (XRD) results indicated that the lattice distance between GO sheets increased after TETA/HEC crosslinking. Thermogravimetric analysis (TGA) confirmed the successful incorporation of crosslinker moieties on the surface of GO sheets. The fabricated GOMs could be used to efficiently adsorb metal ions and arsenate by the introduced polar functional groups on GO sheets and porous structures based on hydrogen bonds, whose morphologies and compositions were confirmed via XRD, scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy.
Polycnemum arvense Linnaeus, 1753, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Caryophyllales
Amaranthaceae
Polycnemum
Polycnemum arvense

description: Polycnemum arvense, spec. nov.
 1. Polycnemum Sauv. monsp. 45.
 Salsola caule repente, foliis & stipulis sessilibus subulatis cartilagineis. Dalib. paris.80.
 Chenopodium foliis subulatis prismaticis, floribus solitariis sessilibus axillaribus. Gvett. stamp.14.
 Chenopodium annuum humifusum, folio breviori & capillaceo. Tournef. inst. 506.
 Camphorata vaginis spinosis. Hall. helv. 183.
 Camphorata congener. Bauh. pin. 486.
 Herniaria foliis longis angustis acuminatis & glabris. Magn. char.51.
 Habitat in Galliae , Italiae , Germaniae arvis.
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on page 35, DOI: 10.5281/zenodo.3931989
Searching for Relic Neutralinos using Neutrino Telescopes
Creators: name: Berezinsky, V.
name: Bottino, A.
name: Ellis, J.
name: Fornengo, N.
name: Mignola, G.
name: Scopel, S.
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Neutrino telescopes of large area offer the possibility of searching for indirect signals of relic neutralinos in the galactic halo, due to annihilations in the Sun or the Earth. Here we investigate the sensitivity, using a supergravity scheme where the soft scalar mass terms are not constrained by universality conditions at the grand unification scale. We first discuss in which regions of the supersymmetric parameter space the neutralino may be considered as a good candidate for cold dark matter. The discovery potential of the search using neutrino telescopes is then compared to that of the direct search for relic neutralinos.
description: 22 pages, uses RevTeX, figures appended as a uu-encoded, gzipped, tarred file
Local models of isolated singularities for affine special Kähler structures in dimension two
Creators: name: Callies, Martin
name: Haydys, Andriy
Publisher: name: arXiv
Year: 2017
Subjects: subject: Differential Geometry (math.DG)
subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We construct local models of isolated singularities for special Kähler structures in real dimension two assuming that the associated holomorphic cubic form does not have essential singularities. As an application we compute the holonomy of the flat symplectic connection, which is a part of the special Kähler structure.
description: V2: typos corrected, some conventions changed, a few changes in exposition
Cassytha filiformis Linnaeus, 1753, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Laurales
Lauraceae
Cassytha
Cassytha filiformis

description: Cassytha filiformis, spec. nov.
 1. Cassytha Osbeck.
 Cuscuta altera s. major. Camel. luz.1. p.1. n.1. Pet. gaz. 77. t.49. f.12.
 Cuscuta baccifera barbadensium a maritimis. Pluk. alm. 126. t.172. f.2.
 Acatsia-valli. Rheed mal.7. p.83. t.44. Raj. suppl. 551.
 Habitat in India .
 Habitus & omnia Cuscutae, at fructificatio diversissima.
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on pages 35-36, DOI: 10.5281/zenodo.3931989
Supersymmetric vertex algebras
Creators: name: Heluani, Reimundo
name: Kac, Victor G.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Algebra (math.QA)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We define and study the structure of SUSY Lie conformal and vertex algebras. This leads to effective rules for computations with superfields.
description: 71 pages
Anomalous Higgs Boson Contribution to e^+ e^- \to b \bbar γat LEP2
Creators: name: Lietti, S. M.
name: Novaes, S. F.
name: Rosenfeld, R.
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the effect of anomalous $Hγγ$ and $HZγ$ couplings, described by a general effective Lagrangian, on the process $e^+ e^- \to b \bar{b} γ$ at LEP2 energies. We include the relevant irreducible standard model background to this process, and from the photon energy spectrum, we determine the reach of LEP2 to unravel the anomalous couplings by analyzing the significance of the signal for Higgs boson with mass up to $150$ GeV.
description: 12 pages, RevTex, 4 figures included
A systematic review and meta-analysis of the efficacy and safety of the interleukin (IL)-12/23 and IL-17 inhibitors ustekinumab, secukinumab, ixekizumab, brodalumab, guselkumab and tildrakizumab for the treatment of moderate to severe plaque psoriasis
Creators: name: Bilal, Jawad
name: Berlinberg, Adam
name: Sandipan Bhattacharjee
name: Trost, Jaren
name: Irbaz Bin Riaz
name: Kurtzman, Drew J. B.
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Space Science
subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine

description: Objective: To systematically analyze the efficacy and safety of interleukin (IL)-12/23, IL-17, and selective IL-23 inhibitors in moderate to severe plaque psoriasis. Methods and results: Twenty-four randomized placebo-controlled trials were included. Compared to placebo, risk ratios (RR) of achieving PASI-75 and PGA/IGA 0/1 respectively were 20.20 (95% CI 13.82–29.54, p p p p p p p p p p p p p p p p p p p p p p Conclusion: Ustekinumab, secukinumab, ixekizumab, brodalumab, guselkumab, and tildrakizumab were highly efficacious and generally well-tolerated when used as treatments for moderate to severe plaque psoriasis.
Crocus sativus Linnaeus, 1753, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Asparagales
Iridaceae
Crocus
Crocus sativus

description: Crocus sativus, spec. nov.
1. Crocus spatha univalvi radicali, corollae tubo longissimo.
 Crocus floribus fructui impositis: tubo longissimo. Roy. lugb. 41. Hort. ups. 15. Mat. med.27.
 Crocus flore fructui imposito. Hort. cliff. 18.
 Habitat in Alpibus Helveticis , Pyrenaeis , Lusitanicis , Tracicis . ♃
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on page 36, DOI: 10.5281/zenodo.3931989
The relationship between mental health and reward processing in the general youth population: a scoping review.
Creators: name: Bentivegna, Francesca
name: Flouri, Eirini
name: Papachristou, Efstathios
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Psychiatry and Psychology
subject: Medicine and Health Sciences
subject: Developmental Psychology
subject: Child Psychology
subject: Behavior and Behavior Mechanisms
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: Psychological Phenomena and Processes
subject: adolescence
subject: externalising problems
subject: gambling tasks
subject: internalising problems
subject: reward processing
subject: risk-taking

description: This scoping review will explore the existing literature as well as the gaps on the link, in childhood and adolescence, between reward processing (measured using gambling tasks) and mental health problems including internalising (e.g. emotional and peer problems) and externalising (e.g. conduct problems and hyperactivity) symptoms. Moreover, this review will help us identify key aspects of these problems in the context of reward processing. Finally, we will map and summarise the available evidence in order to inform the analyses to be carried out between mental health problems and reward processing.
Crocus sativus var. officinalis Linnaeus, 1753, var. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Asparagales
Iridaceae
Crocus
Crocus sativus
Crocus sativus var. officinalis

description: Crocus sativus var. officinalis, var. nov.
 α. Crocus autumnalis sativus. Moris. hist.2. p.335. s.4. t.2. f.1.
 Crocus sativus. Bauh. pin. 65.
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on page 36, DOI: 10.5281/zenodo.3931989
Coherifying quantum channels
Creators: name: Korzekwa, Kamil
name: Czachórski, Stanisław
name: Puchała, Zbigniew
name: Życzkowski, Karol
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Is it always possible to explain random stochastic transitions between states of a finite-dimensional system as arising from the deterministic quantum evolution of the system? If not, then what is the minimal amount of randomness required by quantum theory to explain a given stochastic process? Here, we address this problem by studying possible coherifications of a quantum channel $Φ$, i.e., we look for channels $Φ^{\mathcal{C}}$ that induce the same classical transitions $T$, but are "more coherent". To quantify the coherence of a channel $Φ$ we measure the coherence of the corresponding Jamiołkowski state $J_Φ$. We show that the classical transition matrix $T$ can be coherified to reversible unitary dynamics if and only if $T$ is unistochastic. Otherwise the Jamiołkowski state $J_Φ^{\mathcal{C}}$ of the optimally coherified channel is mixed, and the dynamics must necessarily be irreversible. To assess the extent to which an optimal process $Φ^{\mathcal{C}}$ is indeterministic we find explicit bounds on the entropy and purity of $J_Φ^{\mathcal{C}}$, and relate the latter to the unitarity of $Φ^{\mathcal{C}}$. We also find optimal coherifications for several classes of channels, including all one-qubit channels. Finally, we provide a non-optimal coherification procedure that works for an arbitrary channel $Φ$ and reduces its rank (the minimal number of required Kraus operators) from $d^2$ to $d$.
description: 20 pages, 8 figures. Published version
A further discussion on quasar-galaxy associations from gravitational lensing
Creators: name: Wu, Xiang-Ping
Publisher: name: arXiv
Year: 1993
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Quasar-galaxy associations, if they result from the effect of gravitational lensing by foreground galaxies, depend sensitively on the shape of the quasar number counts. Two kinds of quasar number-magnitude relations are predicted to produce quite different properties in quasar-galaxy associations: the counts of Boyle, Shanks and Peterson (1988; BSP) provide both positive and ``negative" associations between distant quasars and foreground galaxies, relating closely with the knee ($B\approx19.15$) in these counts. However, Hawkins and Véron (1993; HV) quasar data lead to only a positive magnitude-independent quasar-galaxy association. The current observational evidence on quasar-galaxy associations, either positive or null, is shown to be the natural result of gravitational lensing if quasars follow the BSP number-magnitude relation. On the other hand, the HV counts are unable to produce the reported associations by the mechanism of gravitational lensing. It is emphasized that special attention should be paid to the limiting magnitudes in the selected quasar samples when one works on quasar-galaxy associations.
description: 4 pages, 2 figures (not included) by fax, A&A submitted, DAEC-OPM-93
Strong and broadly tunable plasmon resonances in thick films of aligned carbon nanotubes
Creators: name: Chiu, Kuan-Chang
name: Falk, Abram L.
name: Ho, Po-Hsun
name: Farmer, Damon B.
name: Tulevski, George
name: Lee, Yi-Hsien
name: Avouris, Phaedon
name: Han, Shu-Jen
Publisher: name: arXiv
Year: 2017
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Low-dimensional plasmonic materials can function as high quality terahertz and infrared antennas at deep subwavelength scales. Despite these antennas' strong coupling to electromagnetic fields, there is a pressing need to further strengthen their absorption. We address this problem by fabricating thick films of aligned, uniformly sized carbon nanotubes and showing that their plasmon resonances are strong, narrow, and broadly tunable. With thicknesses ranging from 25 to 250 nm, our films exhibit peak attenuation reaching 70%, quality factors reaching 9, and electrostatically tunable peak frequencies by a factor of 2.3x. Excellent nanotube alignment leads to the attenuation being 99% linearly polarized along the nanotube axis. Increasing the film thickness blueshifts the plasmon resonators down to peak wavelengths as low as 1.4 micrometers, promoting them to a new near-infrared regime in which they can both overlap the S11 nanotube exciton energy and access the technologically important infrared telecom band.
description: 19 pages, 5 figures, main text followed by supporting information
Design of new Mott multiferroics via complete charge transfer: promising candidates for bulk photovoltaics
Creators: name: Chen, Hanghui
name: Millis, Andrew J.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Optimal materials to induce bulk photovoltaic effects should lack inversion symmetry and have an optical gap matching the energies of visible radiation. Ferroelectric perovskite oxides such as BaTiO$_3$ and PbTiO$_3$ exhibit substantial polarization and stability, but have the disadvantage of excessively large band gaps. We use both density functional theory and dynamical mean field theory calculations to design a new class of Mott multiferroics--double perovskite oxides $A_2$VFeO$_6$ ($A$=Ba, Pb, etc). While neither perovskite $A$VO$_3$ nor $A$FeO$_3$ is ferroelectric, in the double perovskite $A_2$VFeO$_6$ a `complete' charge transfer from V to Fe leads to a non-bulk-like charge configuration--an empty V-$d$ shell and a half-filled Fe-$d$ shell, giving rise to a polarization comparable to that of ferroelectric $A$TiO$_3$. Different from nonmagnetic $A$TiO$_3$, the new double perovskite oxides have an antiferromagnetic ground state and around room temperatures, are paramagnetic Mott insulators. Most importantly, the V $d^0$ state significantly reduces the band gap of $A_2$VFeO$_6$, making it smaller than that of $A$TiO$_3$ and BiFeO$_3$ and rendering the new multiferroics a promising candidate to induce bulk photovoltaic effects.
description: 27 pages, 6 figures and 3 tables
Immobilized triazine bis[mercapto amine] complexes of Pd(0) anchored nickel ferrite as a nanocatalyst for C–C coupling reaction
Creators: name: Naeimi, Hossein
name: Kiani, Fatemeh
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Molecular Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences

description: Immobilized triazine bis[mercapto amine] complexes of Pd(0) (NiFe2O4@TABMA-Pd(0)) was easily synthesized and applied as highly efficient and versatile nanocatalyst for the synthesis of various trans stilbenes with high performance for the Heck coupling reaction of several types of aryl halides under thermal conditions. In short reaction time, excellent yields of trans stilbene derivatives have been achieved using NiFe2O4@TABMA-Pd(0) catalyst.
Crocus sativus var. vernus Linnaeus, 1753, var. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Asparagales
Iridaceae
Crocus
Crocus sativus
Crocus sativus var. vernus

description: Crocus sativus var. vernus, var. nov.
 β. Crocus vernus latifolius. I-XI. & I-VI. Bauh. pin. 65. 66.
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on page 36, DOI: 10.5281/zenodo.3931989
Machine Learning Assisted Many-Body Entanglement Measurement
Creators: name: Gray, Johnnie
name: Banchi, Leonardo
name: Bayat, Abolfazl
name: Bose, Sougato
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Entanglement not only plays a crucial role in quantum technologies, but is key to our understanding of quantum correlations in many-body systems. However, in an experiment, the only way of measuring entanglement in a generic mixed state is through reconstructive quantum tomography, requiring an exponential number of measurements in the system size. Here, we propose a machine learning assisted scheme to measure the entanglement between arbitrary subsystems of size $N_A$ and $N_B$, with $\mathcal{O}(N_A + N_B)$ measurements, and without any prior knowledge of the state. The method exploits a neural network to learn the unknown, non-linear function relating certain measurable moments and the logarithmic negativity. Our procedure will allow entanglement measurements in a wide variety of systems, including strongly interacting many body systems in both equilibrium and non-equilibrium regimes.
description: 16 pages, 10 figures, including appendix
Detection of 36 GHz Class I Methanol Maser Emission Towards NGC 4945
Creators: name: McCarthy, Tiege P.
name: Ellingsen, Simon P.
name: Chen, Xi
name: Breen, Shari L.
name: Voronkov, Maxim A.
name: Qiao, Hai-hua
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We have searched for emission from the 36.2 GHz ($4_{-1} \rightarrow 3_0$E) methanol transition towards NGC 4945, using the Australia Telescope Compact Array. 36.2 GHz methanol emission was detected offset south-east from the Galactic nucleus. The methanol emission is narrow, with a linewidth <10 kms$^{-1}$, and a luminosity five orders of magnitude higher than Galactic class I masers from the same transition. These characteristics combined the with physical separation from the strong central thermal emission suggests that the methanol emission is a maser. This emission is a factor of $\sim90$ more luminous than the widespread emission detected from the Milky Way central molecular zone (CMZ). This is the fourth detection of extragalactic class I emission, and the third detection of extragalactic 36.2 GHz maser emission. These extragalactic class I methanol masers do not appear to be simply highly luminous variants of Galactic class I emission, and instead appear to trace large-scale regions of low-velocity shocks in molecular gas, which may precede, or be associated with, the early stages of large-scale star formation.
description: 7 pages, 3 figures, 1 table
Immobilized triazine bis[mercapto amine] complexes of Pd(0) anchored nickel ferrite as a nanocatalyst for C-C coupling reaction
Creators: name: Naeimi, Hossein
name: Kiani, Fatemeh
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Molecular Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences

description: Immobilized triazine bis[mercapto amine] complexes of Pd(0) (NiFe2O4@TABMA-Pd(0)) was easily synthesized and applied as highly efficient and versatile nanocatalyst for the synthesis of various trans stilbenes with high performance for the Heck coupling reaction of several types of aryl halides under thermal conditions. In short reaction time, excellent yields of trans stilbene derivatives have been achieved using NiFe2O4@TABMA-Pd(0) catalyst.
Crocus bulbocodium Linnaeus, 1753, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Asparagales
Iridaceae
Crocus
Crocus bulbocodium

description: Crocus bulbocodium, spec. nov.
2. Crocus spatha diphylla flori approximata, tubo corollae brevi.
 Crocus flore fructui imposito: tubo brevi. Roy. lugdb. 41.
 Sisyrinchium minus angustifolium, flore majore variegato. Bauh. pin.41.
 Sisyrinchium asprensium, angusto folio, alterum. Col. ecphr.2. p.5. t.7. f.1.
 Bulbocodium crocifolium, flore magno albo fundo luteo. Tournef. cor.50.
 Habitat in alpibus Italicis . ♃
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on page 36, DOI: 10.5281/zenodo.3931989
Hida theory over some unitary Shimura varieties without ordinary locus
Creators: name: Brasca, Riccardo
name: Rosso, Giovanni
Publisher: name: arXiv
Year: 2017
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11F33 (Primary), 11F55 (Secondary)

description: We develop Hida theory for Shimura varieties of type A without ordinary locus. In particular we show that the dimension of the space of ordinary forms is bounded independently of the weight and that there is a module of $Λ$-adic cuspidal ordinary forms which is of finite type over $Λ$, where $Λ$ is a twisted Iwasawa algebra.
Gravitational Microlensing by the MACHOs of the LMC
Creators: name: Wu, Xiang-Ping
Publisher: name: arXiv
Year: 1993
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The expected microlensing events of the LMC by the MACHOs of the LMC itself are calculated and compared with analogue events by objects in the Galactic halo. The LMC matter distribution is modelled by a spherical halo and an exponential disk while a face-on exponential disk is used for the stellar distribution of the LMC. Among the microlensing events discovered by the MACHOs and EROS projects, a fraction of $22\%$ could be caused by the lenses near the center of the LMC or $13\%$ from lenses at $5^o$ from the LMC center. Therefore, any statistical study of these microlensing events must take the LMC lenses into account.
description: 12 pages, 6 figures (not included) by fax, ApJ submitted, DAEC-OPM-93
On the Relationship between the One-Corner Problem and the $M$-Corner Problem for the Vortex Filament Equation
Creators: name: de la Hoz, Francisco
name: Vega, Luis
Publisher: name: arXiv
Year: 2017
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: In this paper, we give evidence that the evolution of the Vortex Filament Equation for a regular $M$-corner polygon as initial datum can be explained at infinitesimal times as the superposition of $M$ one-corner initial data. Therefore, and due to periodicity, the evolution at later times can be understood as the nonlinear interaction of infinitely many filaments, one for each corner. This interaction turns out to be some kind of nonlinear Talbot effect. We also give very strong numerical evidence of the transfer of energy and linear momentum for the $M$-corner case.
description: 33 pages, 13 figures
Synthesis, characterization, luminescent, and catalytic performance of a dinuclear triazenido–silver complex
Creators: name: Luo, Su-Ping
name: Lei, Jia-Mei
name: Zhan, Shu-Zhong
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biophysics
subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified

description: Our group has developed a series of molecular electrocatalysts for hydrogen generation based on triazenido–metal complexes (such as cobalt, copper, etc.). In this paper, we present the electrocatalytic performance of a new dinuclear silver complex, [Ag2(L)2], formed by reaction of the triazenido ligand, 1-[(2-carboxyethyl)benzene]-3-[benzimidazole]triazene (HL) with AgNO3. The electrocatalytic systems based on this silver complex can afford 91.23 and 473 moles of hydrogen per mole of catalyst per hour (mol H2/mol catalyst/h) from acetic acid at overpotential (OP) of 991.6 mV and an aqueous buffer at an OP of 837.6 mV, respectively. Electrochemical investigations show both the silver center and the triazenido ligand, HL, play important roles in determining the catalytic activities of the electrocatalytic system. Additionally, the triazenido ligand (HL) can serve as a fluorescent sensor for Ag+.
MC-QDSNN: Quantized Deep evolutionary SNN with Multi-Dendritic Compartment Neurons for Stress Detection using Physiological Signals
Creators: name: S, Ajay B
name: K, Phani Pavan
name: Rao, Madhav
Publisher: name: arXiv
Year: 2024
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Long short-term memory (LSTM) has emerged as a definitive network for analyzing and inferring time series data. LSTM has the capability to extract spectral features and a mixture of temporal features. Due to this benefit, a similar feature extraction method is explored for the spiking counterparts targeting time-series data. Though LSTMs perform well in their spiking form, they tend to be compute and power intensive. Addressing this issue, this work proposes Multi-Compartment Leaky (MCLeaky) neuron as a viable alternative for efficient processing of time series data. The MCLeaky neuron, derived from the Leaky Integrate and Fire (LIF) neuron model, contains multiple memristive synapses interlinked to form a memory component, which emulates the human brain's Hippocampus region. The proposed MCLeaky neuron based Spiking Neural Network model and its quantized variant were benchmarked against state-of-the-art (SOTA) Spiking LSTMs to perform human stress detection, by comparing compute requirements, latency and real-world performances on unseen data with models derived through Neural Architecture Search (NAS). Results show that networks with MCLeaky activation neuron managed a superior accuracy of 98.8% to detect stress based on Electrodermal Activity (EDA) signals, better than any other investigated models, while using 20% less parameters on average. MCLeaky neuron was also tested for various signals including EDA Wrist and Chest, Temperature, ECG, and combinations of them. Quantized MCLeaky model was also derived and validated to forecast their performance on hardware architectures, which resulted in 91.84% accuracy. The neurons were evaluated for multiple modalities of data towards stress detection, which resulted in energy savings of 25.12x to 39.20x and EDP gains of 52.37x to 81.9x over ANNs, while offering a best accuracy of 98.8% when compared with the rest of the SOTA implementations.
description: 13 pages, 15 figures. Published to IEEE Transactions on Computer Aided Design
Lifetime asymptotics of iterated Brownian motion in R^{n}
Creators: name: Nane, Erkan
Publisher: name: arXiv
Year: 2006
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60J65; 60K99

description: Let $τ_{D}(Z) $ be the first exit time of iterated Brownian motion from a domain $D \subset \RR{R}^{n}$ started at $z\in D$ and let $P_{z}[τ_{D}(Z) >t]$ be its distribution. In this paper we establish the exact asymptotics of $P_{z}[τ_{D}(Z) >t]$ over bounded domains as an improvement of the results in \cite{deblassie, nane2}, for $z\in D$ \begin{eqnarray} \lim_{t\to\infty} t^{-1/2}\exp({3/2}π^{2/3}λ_{D}^{2/3}t^{1/3}) P_{z}[τ_{D}(Z)>t]= C(z),\nonumber \end{eqnarray} where $C(z)=(λ_{D}2^{7/2})/\sqrt{3 π}(ψ(z)\int_{D}ψ(y)dy) ^{2}$. Here $λ_{D}$ is the first eigenvalue of the Dirichlet Laplacian ${1/2}Δ$ in $D$, and $ψ$ is the eigenfunction corresponding to $λ_{D}$ . We also study lifetime asymptotics of Brownian-time Brownian motion (BTBM), $Z^{1}_{t}=z+X(|Y(t)|)$, where $X_{t}$ and $Y_{t}$ are independent one-dimensional Brownian motions.
An Investigation of the Structural Characteristics of the Indian IT Sector and the Capital Goods Sector: An Application of the R Programming in Time Series Decomposition and Forecasting
Creators: name: Sen, Jaydip
name: Chaudhuri, Tamal Datta
Publisher: name: arXiv
Year: 2017
Subjects: subject: Statistical Finance (q-fin.ST)
subject: FOS: Economics and business

description: Time series analysis and forecasting of stock market prices has been a very active area of research over the last two decades. Availability of extremely fast and parallel architecture of computing and sophisticated algorithms has made it possible to extract, store, process and analyze high volume stock market time series data very efficiently. In this paper, we have used time series data of the two sectors of the Indian economy: Information Technology and Capital Goods for the period January 2009 till April 2016 and have studied the relationships of these two time series with the time series of DJIA index, NIFTY index and the US Dollar to Indian Rupee exchange rate. We establish by graphical and statistical tests that while the IT sector of India has a strong association with DJIA index and the Dollar to Rupee exchange rate, the Indian CG sector exhibits a strong association with the NIFTY index. We contend that these observations corroborate our hypotheses that the Indian IT sector is strongly coupled with the world economy whereas the CG sector of India reflects internal economic growth of India. We also present several models of regression between the time series which exhibit strong association among them. The effectiveness of these models have been demonstrated by very low values of their forecasting errors.
description: 64 pages, 34 figures, 33 tables
Acyclic cluster algebras, reflection groups, and curves on a punctured disc
Creators: name: Felikson, Anna
name: Tumarkin, Pavel
Publisher: name: arXiv
Year: 2017
Subjects: subject: Combinatorics (math.CO)
subject: Rings and Algebras (math.RA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: We establish a bijective correspondence between certain non-self-intersecting curves in an $n$-punctured disc and positive ${\mathbf c}$-vectors of acyclic cluster algebras whose quivers have multiple arrows between every pair of vertices. As a corollary, we obtain a proof of a conjecture by K.-H. Lee and K. Lee (arXiv:1703.09113) on the combinatorial description of real Schur roots for acyclic quivers with multiple arrows, and give a combinatorial characterization of seeds in terms of curves in an $n$-punctured disc.
description: To appear in Adv. Math., accepted version; 27 pages, many figures
Synthesis, characterization, luminescent and catalytic performance of a dinuclear triazenido-silver complex
Creators: name: Luo, Su-Ping
name: Lei, Jia-Mei
name: Zhan, Shu-Zhong
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biophysics
subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified

description: Our group has developed a series of molecular electrocatalysts for hydrogen generation based on triazenido-metal complexes (such as cobalt, copper, etc.). In this paper, we present the electrocatalytic performance of a new dinuclear silver complex, [Ag2(L)2], formed by reaction of the triazenido ligand, 1-[(2-carboxyethyl)benzene]-3-[benzimidazole]triazene (HL) with AgNO3. The electrocatalytic systems based on this silver complex can afford 91.23 and 473 moles of hydrogen per mole of catalyst per hour (mol H2/mol catalyst/h) from acetic acid at an overpotential (OP) of 991.6 mV and an aqueous buffer at an OP of 837.6 mV, respectively. Electrochemical investigations show both the silver center and the triazenido ligand, HL, play important roles in determining the catalytic activities of the electrocatalytic system. Additionally, the triazenido ligand (HL) can serve as a fluorescent sensor for Ag+.
Radiative Four--Meson Amplitudes in Chiral Perturbation Theory
Creators: name: D'Ambrosio, G.
name: Ecker, G.
name: Isidori, G.
name: Neufeld, H.
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a general discussion of radiative four--meson processes to $O(p^4)$ in chiral perturbation theory. We propose a definition of ``generalized bremsstrahlung'' that takes full advantage of experimental information on the corresponding non--radiative process. We also derive general formulae for one--loop amplitudes which can be applied, for instance, to $η\ra 3πγ$, $ππ\ra ππγ$ and $K \ra 3πγ$.
description: 8 pages, LaTex file, 1 figure. Full postscript version at this URL http://hpteor.lnf.infn.it/dafnepapers.html