cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A counterexample to the strong version of Freedman's conjecture
Creators: name: Krushkal, Vyacheslav
Publisher: name: arXiv
Year: 2006
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: A long-standing conjecture due to Michael Freedman asserts that the 4-dimensional topological surgery conjecture fails for non-abelian free groups, or equivalently that a family of canonical examples of links (the generalized Borromean rings) are not A-B slice. A stronger version of the conjecture, that the Borromean rings are not even weakly A-B slice, where one drops the equivariant aspect of the problem, has been the main focus in search for an obstruction to surgery. We show that the Borromean rings, and more generally all links with trivial linking numbers, are in fact weakly A-B slice. This result shows the lack of a non-abelian extension of Alexander duality in dimension 4, and of an analogue of Milnor's theory of link homotopy for general decompositions of the 4-ball.
description: 20 pages
How do people describe locations during a natural disaster: an analysis of tweets from Hurricane Harvey
Creators: name: Hu, Yingjie
name: Wang, Jimin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: Social media platforms, such as Twitter, have been increasingly used by people during natural disasters to share information and request for help. Hurricane Harvey was a category 4 hurricane that devastated Houston, Texas, USA in August 2017 and caused catastrophic flooding in the Houston metropolitan area. Hurricane Harvey also witnessed the widespread use of social media by the general public in response to this major disaster, and geographic locations are key information pieces described in many of the social media messages. A geoparsing system, or a geoparser, can be utilized to automatically extract and locate the described locations, which can help first responders reach the people in need. While a number of geoparsers have already been developed, it is unclear how effective they are in recognizing and geo-locating the locations described by people during natural disasters. To fill this gap, this work seeks to understand how people describe locations during a natural disaster by analyzing a sample of tweets posted during Hurricane Harvey. We then identify the limitations of existing geoparsers in processing these tweets, and discuss possible approaches to overcoming these limitations.
description: 11th International Conference on Geographic Information Science (GIScience 2021)
Growth of spatial correlations in the aging of a simple structural glass
Creators: name: Parsaeian, Azita
name: Castillo, Horacio E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present a detailed numerical study of dynamical heterogeneities in the aging regime of a simple binary Lennard-Jones glass former. For most waiting times t_w and final times t, both the dynamical susceptibility χ_4(t,t_w) and the dynamical correlation length ξ_4(t,t_w) can be approximated as products of two factors: i) a waiting time dependent scale that grows as a power of t_w, and ii) a scaling function dependent on t,t_w only through the value of the intermediate scattering function C(t,t_w). We find that χ_4(t,t_w) is determined *only in part* by the correlation volume.
description: 5 pages, 4 figures. v4: Added references and a concluding paragraph. Improved discussion of fitting procedure used to determine correlation lengths. v3: Simulation done with much larger statistics, replaced all the figures and part of the text. v2: corrected acknowledgements
A Search for Dark Matter Annihilation with the Whipple 10m Telescope
Creators: name: Wood, M.
name: Blaylock, G.
name: Bradbury, S. M.
name: Buckley, J. H.
name: Byrum, K. L.
name: Chow, Y. C. K.
name: Cui, W.
name: Perez, I. de la Calle
name: Falcone, A. D.
name: Fegan, S. J.
name: Finley, J. P.
name: Grube, J.
name: Hall, J.
name: Hanna, D.
name: Holder, J.
name: Horan, D.
name: Humensky, T. B.
name: Kieda, D. B.
name: Kildea, J.
name: Konopelko, A.
name: Krawczynski, H.
name: Krennrich, F.
name: Lang, M. J.
name: LeBohec, S.
name: Nagai, T.
name: Ong, R. A.
name: Perkins, J. S.
name: Pohl, M.
name: Quinn, J.
name: Rose, H. J.
name: Sembroski, G. H.
name: Vassiliev, V. V.
name: Wagner, R. G.
name: Wakely, S. P.
name: Weekes, T. C.
name: Weinstein, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present observations of the dwarf galaxies Draco and Ursa Minor, the local group galaxies M32 and M33, and the globular cluster M15 conducted with the Whipple 10m gamma-ray telescope to search for the gamma-ray signature of self-annihilating weakly interacting massive particles (WIMPs) which may constitute astrophysical dark matter (DM). We review the motivations for selecting these sources based on their unique astrophysical environments and report the results of the data analysis which produced upper limits on excess rate of gamma rays for each source. We consider models for the DM distribution in each source based on the available observational constraints and discuss possible scenarios for the enhancement of the gamma-ray luminosity. Limits on the thermally averaged product of the total self-annihilation cross section and velocity of the WIMP, , are derived using conservative estimates for the magnitude of the astrophysical contribution to the gamma-ray flux. Although these limits do not constrain predictions from the currently favored theoretical models of supersymmetry (SUSY), future observations with VERITAS will probe a larger region of the WIMP parameter phase space, and WIMP particle mass (m_χ).
description: 33 pages, 12 figures, accepted for publication in the Astrophysical Journal
Die Afrikanischen Unabhängigen Kirchen (AUK) und die Ökumene
Creators: name: Bergunder, Michael
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 47 Nr. 4 (1998): Ökumenische Rundschau, Band 47, Heft 4
Frenolicins H and I from the caterpillar-associated Streptomyces sp. TBRC17107
Creators: name: Supong, Khomsan
name: Bunbamrung, Nantiya
name: Tanasupawat, Somboon
name: Auncharoen, Patchanee
name: Nithithanasilp, Sutichai
name: Rachtawee, Pranee
name: Pittayakhajonwut, Pattama
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Hematology
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology

description: Two undescribed frenolicins H and I (1 and 2) along with six previously described frenolicin analogues [frenolicins A (3), B (4), UCF76-B (5), E – G (6 – 8)] and two anthraquinones [3,8-dihydroxy-1-propylanthraquinone-2-carboxylic acid (9) and 3,8-dihydroxy-1-propylanthraquinone (10)] were isolated from a longkong bark eating caterpillar-derived Streptomyces sp. TBRC17107. The chemical structures were determined by NMR spectroscopic information and HRESIMS data. Frenolicins H (1) and I (2) showed weak cytotoxicity against malignant and non-malignant cells. Frenolicins A (3) and B (4) showed antimalarial activity against Plasmodium falciparum (IC50 17.4 and 1.37 μM), antibacterial activity against Bacillus cereus and Staphylococcus aureus (MIC 50.0 and 0.20 μg/mL). Only frenolicin B had anti-plant pathogenic fungal activity against Collectotrichum acutatum and Alternaria brassicicola with MIC values of MIC 1.56 and 6.25 μg/mL, respectively. Frenolicins A and G possessed anti-Mycobacterium tuberculosis with equal MICs of 25.0 μg/mL.
Lexical and grammatical elicitation: Greetings and possessive constructions
Creators: name: Ovelar, Irma Easty
name: Dabkowski, Maksymilian
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: gug

description: Greetings, alienable and inalienable possessive paradigms, possessive predication, possessive phrases in full clauses.
Taiwanese immigrant parents’ perceptions of their adolescent children’s ESL learning and academic achievement
Creators: name: Salzberg, Joy Lin
Publisher: name: University of British Columbia
Year: 2009

description: This study examines the attitudes of recent Taiwanese immigrant parents, of relatively high socioeconomic status, toward the ESL learning of their adolescent children in one city in the Lower Mainland region of British Columbia, Canada. A qualitative, ethnographic approach was used to gather data from parents and adolescent children in eight families. The research questions for the study were: 1) How do Taiwanese immigrant parents perceive factors that influence their children's academic achievement? 2) What are their perceptions of their children's ESL learning experience and its relation, if any, to their academic achievement? and 3) What are the children's perceptions of their ESL learning experience and its relation, if any, to their academic achievement? The "reflective narratives" related by the parents and adolescent children shed light on the language socialization process and the social identities of both students and parents. Key emergent issues included differences in educational systems, tests and homework, pressure and discipline, and progress in ESL learning. Parents expressed dissatisfaction with the extreme aspects of the education system in Taiwan, indicating that a prime reason for emigration to Canada was their children's education. Nonetheless, parents' remarks also revealed deep discomfort and dissatisfaction with the holistic learner-centered approaches prevalent in Canadian schools and what were perceived as overly long periods spent in ESL classes without clear external markers for achievement or criteria for advancement. As parents compared and "weighed" their children's academic experiences in Taiwan and Canada, the balance tipped toward the lockstep, test-oriented Taiwanese type of formal academic learning, featuring authoritarian roles for teachers and parents. Parents' comments thus revealed a profound ambivalence. Students' remarks also showed them to be caught between two systems and two cultures, with divergent learning styles, and two authorities, the parent and the teacher, with differing values and expectations. The study identifies the apparent depth of difference between the views of parents and the classroom practices of Canadian teachers concerning English as a Second Language and academic achievement and suggests a possible model for use in bridging and accommodating those differences.
Thin position and essential planar surfaces
Creators: name: Wu, Ying-Qing
Publisher: name: arXiv
Year: 2006
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M25

description: Abby Thompson proved that if a link $K$ is in thin position but not in bridge position then the knot complement contains an essential meridional planar surface, and she asked whether some thin level surface must be essential. This note is to give a positive answer to this question, showing that the if a link is in thin position but not bridge position then a thinnest level surface is essential. A theorem of Rieck and Sedgwick follows as a consequence, which says that thin position of a connected sum of small knots comes in the obvious way.
Optimisation, characterization, and biological evaluation of novel exopolysaccharide from Bacillus licheniformis (BITSL006)
Creators: name: Lakra, Usha
name: Munda, Vivek Lincoln Singh
name: Nigam, Vinod Kumar
name: Sharma, Shubha Rani
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified

description: The study investigated production, characterisation, and biological properties of exopolysaccharide (EPS) from a thermophilic bacterium, Bacillus licheniformis using sucrose as a main carbon source at a temperature of 75 °C, resulting in a yield of 2.87 g/L. The surface topology of EPS was determined using FESEM indicating its porous nature. Subsequently, FTIR was employed to examine EPS and identified the presence of carboxyl and hydroxyl groups, which are believed to be associated with water-holding capacity (WHC). Comparing the FTIR spectrum of various exopolysaccharides, it was inferred that the exopolysaccharide derived from Ramkund closely resembles dextran. EDX and ICP-MS analysis revealed the presence of Sulphur and Selenium which might be involved in the anticancer properties of EPS. This is the first report on bacterial EPS from a hot spring (Ram kund) with antioxidant property, WHC, and high solubility. These properties offer beneficial resources for exploration in the pharmaceutical and agriculture industries.
Multifractal analysis of Chinese stock volatilities based on partition function approach
Creators: name: Jiang, Zhi-Qiang
name: Zhou, Wei-Xing
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Finance (q-fin.ST)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Economics and business
subject: FOS: Physical sciences

description: We have performed detailed multifractal analysis on the minutely volatility of two indexes and 1139 stocks in the Chinese stock markets based on the partition function approach. The partition function $χ_q(s)$ scales as a power law with respect to box size $s$. The scaling exponents $τ(q)$ form a nonlinear function of $q$. Statistical tests based on bootstrapping show that the extracted multifractal nature is significant at the 1% significance level. The individual securities can be well modeled by the $p$-model in turbulence with $p = 0.40 \pm 0.02$. Based on the idea of ensemble averaging (including quenched and annealed average), we treat each stock exchange as a whole and confirm the existence of multifractal nature in the Chinese stock markets.
description: 14 elsart pages including 4 eps figures
Direct detection of neutralino dark mattter in non-standard cosmologies
Creators: name: Gelmini, G.
name: Gondolo, P.
name: Soldatenko, A.
name: Yaguna, C. E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compute the neutralino direct detection rate in non-standard cosmological scenarios where neutralinos account for the dark matter of the Universe. Significant differences are found when such rates are compared with those predicted by the standard cosmological model. For bino-like neutralinos, the main feature is the presence of additional light ($m_χ\lesssim 40\gev$) and heavy ($m_χ\gtrsim 600\gev$) neutralinos with detection rates within the sensitivity of future dark matter experiments. For higgsino- and wino-like neutralinos lighter than $m_χ\sim 1\tev$, enhancements of more than two orders of magnitude in the largest detection rates are observed. Thus, if dark matter is made up of neutralinos, the prospects for their direct detection are in general more promising than in the standard cosmology.
description: 10 pages, 5 figures
Nambu-Goldstone and Massive Modes in Gravitational Theories with Spontaneous Lorentz Breaking
Creators: name: Bluhm, Robert
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Spontaneous breaking of local Lorentz symmetry is of interest as a possible mechanism originating from physics at the Planck scale. If such breaking occurs, however, it raises the questions of what the fate of the Nambu-Goldstone modes is, whether a Higgs mechanism can occur, and whether additional massive modes (analogous to the Higgs particle) can appear. A summary of some recent work looking at these questions is presented here.
description: Talk presented at the Fourth Meeting on CPT and Lorentz Symmetry, Bloomington, IN, August, 2007; 7 pages. Typos corrected
Beyond the Cool Core: The Formation of Cool Core Galaxy Clusters
Creators: name: Burns, Jack O.
name: Hallman, Eric J.
name: Gantner, Brennan
name: Motl, Patrick M.
name: Norman, Michael L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Why do some clusters have cool cores while others do not? In this paper, cosmological simulations, including radiative cooling and heating, are used to examine the formation and evolution of cool core (CC) and non-cool core (NCC) clusters. Numerical CC clusters at z=0 accreted mass more slowly over time and grew enhanced cool cores via hierarchical mergers; when late major mergers occurred, the CCs survived the collisions. By contrast, NCC clusters of similar mass experienced major mergers early in their evolution that destroyed embryonic cool cores and produced conditions that prevent CC re-formation. We discuss observational consequences.
description: 6 pages, to appear in proceedings of Heating vs. Cooling in Galaxies and Clusters of Galaxies, MPA/ESO/MPE/USM Joint Astronomy Conference
Dim and bright void regimes in capacitively-coupled RF complex plasmas
Creators: name: Pikalev, A.
name: Semenov, I.
name: Pustylnik, M.
name: Räth, C.
name: Thomas, H.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We demonstrate experimentally that the void in capacitively-coupled RF complex plasmas can exist in two qualitative different regimes. The "bright" void is characterized by bright plasma emission associated with the void, whereas the "dim" void possesses no detectable emission feature. The transition from the dim to the bright regime occurs with an increase of the discharge power and has a discontinuous character. The discontinuity is manifested by a kink in the void size power dependencies. We reproduce the bright void (mechanically stabilized due to the balance of ion drag and electrostatic forces) by a simplified time-averaged 1D fluid model. To reproduce the dim void, we artificially include the radial ion diffusion into the continuity equation for ions, which allows to mechanically stabilize the void boundary due to very weak electrostatic forces. The electric field at the void boundary occurs to be so small that it, in accordance with the experimental observation, causes no void-related emission feature.
description: 21 pages, 14 figures
Radiative Bhabha Scattering at DAFNE
Creators: name: M. Greco
name: G. Montagna
name: O. Nicrosini
name: F. Piccinini
Publisher: name: INFN Open Access Repository
Year: 1993

description: The problem of computing radiative Bhabha scattering cross sections in realistic experimental setup at  DAPHNE energies is considered. The matrix element for the reaction e^+e^- -> e^+e^-\γ at very small electron scattering angles is computed exactly and compared with existing results. Finite mass corrections are explicity given for the very forward scattering region. A numerical study is presented for electron single tagging at very small angle, electron-positron double tagging both at small and large angles and electron-photon coincidence rates in the forward direction.
Observation of Enhanced Beaming from Photonic Crystal Waveguides
Creators: name: Morrison, Steven K.
name: Kivshar, Yuri S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Optics (physics.optics)
subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: We report on the experimental observation of the beaming effect in photonic crystals enhanced via surface modes. We experimentally map the spatial field distribution of energy emitted from a subwavelength photonic crystal waveguide into free-space, rendering with crisp clarity the diffractionless beaming of energy. Our experimental data agree well with our numerical studies of the beaming enhancement in photonic crystals with modulated surfaces. Without loss of generality, we study the beaming effect in a photonic crystal scaled to microwave frequencies and demonstrate the technological capacity to deliver long-range, wavelength-scaled beaming of energy.
description: 4 pages, 6 figures
A new efficient approximation scheme for solving high-dimensional semilinear PDEs: control variate method for Deep BSDE solver
Creators: name: Takahashi, Akihiko
name: Tsuchida, Yoshifumi
name: Yamada, Toshihiro
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: Computational Finance (q-fin.CP)
subject: FOS: Mathematics
subject: FOS: Economics and business
subject: 60H30, 60H35, 65C20, 65C30

description: This paper introduces a new approximation scheme for solving high-dimensional semilinear partial differential equations (PDEs) and backward stochastic differential equations (BSDEs). First, we decompose a target semilinear PDE (BSDE) into two parts, namely "dominant" linear and "small" nonlinear PDEs. Then, we employ a Deep BSDE solver with a new control variate method to solve those PDEs, where approximations based on an asymptotic expansion technique are effectively applied to the linear part and also used as control variates for the nonlinear part. Moreover, our theoretical result indicates that errors of the proposed method become much smaller than those of the original Deep BSDE solver. Finally, we show numerical experiments to demonstrate the validity of our method, which is consistent with the theoretical result in this paper.
description: 29 page, 9 figures
Inscribing smooth knots with regular polygons
Creators: name: Wu, Ying-Qing
Publisher: name: arXiv
Year: 2006
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M25

description: A regular $n$-gon inscribing a knot is a sequence of $n$ points on a knot, such that the distances between adjacent points are all the same. It is shown that any smooth knot is inscribed by a regular $n$-gon for any $n$.
Lernverlaufsdiagnostik in Deutsch und Mathematik mit der Onlineplattform www.levumi.de. Eine Vorstellung für die schulische Förderpraxis
Creators: name: Buchwald, Katharina
name: Ebenbeck, Nikola
name: Gebhardt, Markus
Publisher: name: Universität Regensburg
Year: 2022
Subjects: subject: Lernverlaufsdiagnostik, Mathematik, Deutsch, Levumi
subject: 370 Erziehung, Schul- und Bildungswesen

description: Vorstellung der Onlineplattform www.levumi.de zur Lernverlaufsdiagnostik in Deutsch und Mathematik für die schulische Förderpraxis.
Supporting ESL learners’ language and content development in a digital environment
Creators: name: Moore, Robert Richmond
Publisher: name: University of British Columbia
Year: 2009

description: The research question asked, can a Knowledge Framework based model of computer environments support English Second Language students in using Internet information to develop content knowledge and cognitive academic language skills? In the rapidly expanding digital world, students are able to locate and access vast amounts of information. The challenge to teachers and students is to select, organize and make productive use of this information. The research investigated student writing composed in a customized computer writing environment which included windows for instruction, graphics, text and Internet information designed to help students develop their academic language skills and consolidate their content knowledge. Analysis of student work explored how the students had used the resource windows to create their reports and graphics and how their writing evidenced "academic discourse'. Analysis traced the selection and transformation of information gathered from the Internet through the students' notes and graphics to their final product. The analysis considered the degree to which the knowledge structures inherent in the. information resources and graphic tasks were represented in the students' written samples. The study was based on an examination of regular school work undertaken by a group of ten elementary second year ESL students in a sheltered class. Students worked under the supervision of the teacher/librarian, classroom teacher and computer support teacher on a collaboratively developed Marine Mammals unit. Although the implications of this research are limited by the small number of students involved, the selection of a conventional content theme and the general issues of support for ESL students in developing language and content skills, as well as appropriate strategies for the educational use of Internet information expand the application of the results. The analysis of student work showed that ESL students were able to use the digital environment to successfully identify, record, consider and present collaboratively researched Internet content. In addition to teacher support and instruction, elements of the task design identified as most critical to students' content and language learning included the use of knowledge structure appropriate key visual tasks connected to notetaking and language supports.
In-medium $J/ψ$ mass shift by the $D$ meson loop effect
Creators: name: Chhabra, Rahul
name: Tsushima, Kazuo
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: By an effective Lagrangian plus QCD sum-rule approach, we investigate the mass shift of the $J/ψ$ state in medium, in symmetric nuclear matter with zero and finite temperature, and cold strange matter. The in-medium mass of the $J/ψ$ state is evaluated through the intermediate pseudoscalar $D$-meson loop for the $J/ψ$ self-energy. The effect of medium is incorporated through the in-medium mass of $D$ meson calculated using chiral SU(3) model plus QCD sum-rule approach. The self energy loop integral is regularized using the phenomenological form factor of the dipole form. We compare our results with some of the results in the literature. The present results should be helpful to understand better the expected data from heavy ion collision experiments, such as CBM and PANDA.
description: 5th International Conference on Particle Physics and Astrophysics
Extended Pair Approximation of Evolutionary Game on Complex Networks
Creators: name: Morita, Satoru
Publisher: name: arXiv
Year: 2008
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We investigate how network structure influences evolutionary games on networks. We extend the pair approximation to study the effects of degree fluctuation and clustering of the network. We find that a larger fluctuation of the degree is equivalent to a larger mobility of the players. In addition, a larger clustering coefficient is equivalent to a smaller number of neighbors.
description: to be published in Progress of Theoretical Physics
Dynamical spin susceptibility in La2CuO4 studied by resonant inelastic x-ray scattering
Creators: name: Robarts, H. C.
name: Garcia-Fernandez, M.
name: Li, J.
name: Nag, A.
name: Walters, A. C.
name: Headings, N. E.
name: Hayden, S. M.
name: Zhou, Ke-Jin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Resonant inelastic X-ray scattering (RIXS) is a powerful probe of elementary excitations in solids. It is now widely applied to study magnetic excitations. However, its complex cross-section means that RIXS has been more difficult to interpret than inelastic neutron scattering (INS). Here we report high-resolution RIXS measurements of magnetic excitations of La2CuO4, the antiferromagnetic parent of one system of high-temperature superconductors. At high energies (~2 eV), the RIXS spectra show angular-dependent dd orbital excitations which are found to be in good agreement with single-site multiplet calculations. At lower energies (<0.3 eV), we show that the wavevector-dependent RIXS intensities are proportional to the product of the single-ion spin-flip cross section and the dynamical susceptibility of the spin-wave excitations. When the spin-flip crosssection is dividing out, the RIXS magnon intensities show a remarkable resemblance to INS data. Our results show that RIXS is a quantitative probe the dynamical spin susceptibility in cuprate and therefore should be used for quantitative investigation of other correlated electron materials.
description: 12 pages
Deliverable-D-JIP2-2.3.0-Tool-Systematic-Risk-Assessment (COHESIVE)
Creators: name: Dewar, Rob
Publisher: name: Zenodo
Year: 2021
Subjects: COHESIVE

description: OHEJP Project COHESIVE: A deliverable describing the work done to construct a decision support tool assisting One Health risk assessors find the most appropriate risk assessment methodologies for their needs
The Classification of Dehn fillings on the outer torus of a 1-bridge braid exterior which produce solid tori
Creators: name: Wu, Ying-Qing
Publisher: name: arXiv
Year: 2006
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57N10

description: Let $K= K(w,b,t)$ be a 1-bridge braid in a solid torus $V$, and let $γ$ be a $(p,q)$ curve on the torus $T = \partial V$ of the exterior $M_K$ of $K$. It will be shown that Dehn filling on $T$ along $γ$ produces a solid torus if and only if $p$ and $q$ satisfy one of four conditions determined by the parameters $(w,b,t)$ of the knot $K$. This solves the classification problem raised by Menasco and Zhang for such Dehn fillings.
FAIRe Editionen - Kriterien und Evaluation
Creators: name: Neuber, Frederike
name: Gengnagel, Tessa
name: Schulz, Daniela
Publisher: name: Zenodo
Year: 2022
Subjects: NFDI
Text+
Textplus
Text+ Plenary 22
Editionen
Task Area Editions
FAIR

description: Poster presented at the plenary meeting of the NFDI consortium Text+ on September 12, 2022 in Mannheim, Germany.
description: Text+ receives a funding grant from the DFG under the grant agreement number 460033370. Text+ is contributing to the NFDI, the National Research Data Infrastructure (NFDI).
UHPLC-MS characterisation of principal triterpene glycosides and biological activities of different solvent extracts of Allochrusa gypsophiloides (Caryophyllaceae)
Creators: name: Mamadalieva, Rano
name: Xujayev, Vaxobjon
name: Sharopov, Farukh S.
name: Wink, Michael
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Plant Biology

description: A crude methanol extract of the roots of Allochrusa gypsophiloides (syn. Acanthophyllum gypsophiloides) (collected from the Tashkent region of Uzbekistan) was chemically characterised by UHPLC-ESI-QTOF-MS/MS analysis. The results indicate the presence of six major bisdesmosidic saponins derived from gypsogenin, gypsogenic and quillaic acids, including five compounds reported for the first time for this species. The chloroform, methanol and water extracts of A. gypsophiloides showed weak antioxidant and anthelmintic activities. Among the tested extracts, the water extract exhibited the highest level of cytotoxicity in CCRF-CEM and CEM/ADR5000 cell lines with IC50 values of 23.6 and 31.9 µg/mL, respectively.
Ferulic acid grafted onto chitooligosaccharides attenuates LPS-stimulated in murine macrophages by modulating the NF-κB and MAPK pathways
Creators: name: Bui, Van-Hoai
name: Vo, Hong-Tham N
name: Vong, Long Binh
name: Kim, Se-Kwon
name: Ngo, Dai-Nghiep
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified

description: Although chitooligosaccharides (COS) improve the drawbacks of chitosan, their biological activities in medical applications have not been highly appreciated. The main approach is to synthesise the COS derivatives in order to improve the biological properties of the COS. In this study, ferulic acid (FA) grafted onto COS (FA-COS) were synthesised and their mechanism of anti-inflammatory activity was investigated in the murine macrophage cells. The synthesis conditions of FA-COS were optimised and confirmed that the FA was successfully conjugated onto COS with the grafting effect of 15-34%. FA-COS exhibited anti-inflammatory activities via suppressing of nitric oxide formation, reducing iNOS expression at transcription and translation levels, down-regulation of TNF-α, IL-6 and IL-1 β genes; NF-κB and MAPKs signalling pathways. These results show anti-inflammatory molecular mechanism of FA-COS that exhibit enormous potential for prevention of inflammatory diseases.
Depth of pleated surfaces in toroidal cusps of hyperbolic 3-manifolds
Creators: name: Wu, Ying-Qing
Publisher: name: arXiv
Year: 2006
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57N10

description: Let $F$ be a closed essential surface in a hyperbolic 3-manifold $M$ with a toroidal cusp $N$. The depth of $F$ in $N$ is the maximal distance from points of $F$ in $N$ to the boundary of $N$. It will be shown that if $F$ is an essential pleated surface which is not coannular to the boundary torus of $N$ then the depth of $F$ in $N$ is bounded above by a constant depending only on the genus of $F$. The result is used to show that an immersed closed essential surface in $M$ which is not coannular to the torus boundary components of $M$ will remain essential in the Dehn filling manifold $M(γ)$ after excluding $C_g$ curves from each torus boundary component of $M$, where $C_g$ is a constant depending only on the genus $g$ of the surface.
Whistler wave occurrence and the interaction with strahl electrons during the first encounter of Parker Solar Probe
Creators: name: Jagarlamudi, V. K.
name: de Wit, T. Dudok
name: Froment, C.
name: Krasnoselskikh, V.
name: Larosa, A.
name: Bercic, L.
name: Agapitov, O.
name: Halekas, J. S.
name: Kretzschmar, M.
name: Malaspina, D.
name: Moncuquet, M.
name: Bale, S. D.
name: Case, A. W.
name: Kasper, J. C.
name: Korreck, K. E.
name: Larson, D. E.
name: Pulupa, M.
name: Stevens, M. L.
name: Whittlesey, P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: We studied the properties and occurrence of narrow band whistler waves and their interaction with strahl electrons observed between 0.17 and 0.26 au during the first encounter of Parker Solar Probe. We observe that occurrence of whistler waves is low, nearly 1.5% and less than 0.5% in the analyzed peak and average BPF data respectively. Whistlers occur highly intermittently and 80% of the whistlers appear continuously for less than 3 s. Occurrence rate of whistler waves was found to be anti-correlated with the solar wind bulk velocity. The study of the duration of the whistler intervals revealed an anti-correlation between the duration and the solar wind velocity, as well as between the duration and the normalized amplitude of magnetic field variations. The pitch-angle widths (PAWs) of the field-aligned electron population referred to as the strahl are broader by at least 12 degrees during the presence of large amplitude narrow band whistler waves. This observation points towards a EM wave electron interaction, resulting in pitch-angle scattering. PAW of strahl electrons corresponding to the short duration whistlers are higher compared to the long duration whistlers. Parallel cuts through the strahl electron velocity distribution function (VDF) observed during the whistler intervals appear to depart from the Maxwellian shape typically found in the near-Sun strahl VDFs (Bercic et al. 2020). The relative decrease of parallel electron temperature and the increase of PAW for the electrons in strahl energy range suggests that the interaction with whistler waves results in a transfer of electron momentum from the parallel to the perpendicular direction.
description: Accepted for publication in Astronomy & Astrophysics PSP special issue on January 12, 2021
AO Psc time keeping
Creators: name: Bonnardeau, Michel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Eleven seasons, from 2004 to 2014, of photometric monitoring of the intermediate polar AO Psc are presented and are compared with previous observations. The spin up of the white dwarf is found to be slowing down. The amplitudes of the modulated and non-modulated components of the brightness are found to have undergone a major change in 2007.
Phytonutritional compounds and antioxidant activity of eight new edible flowers
Creators: name: Marchioni, Ilaria
name: Rodolfi, Margherita
name: Najar, Basma
name: Ruffoni, Barbara
name: Machado, Jean
name: Pistelli, Laura
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Evolutionary Biology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Plant Biology

description: In the last years, special attention has been given to the nutritional properties of food, and the edible flowers (EFs) represent an uncommon fresh product to characterise, with the aim to explore new species with peculiar aesthetic and the aromatic features. This work investigated some nutritional properties of eight new EFs, such as Begonia boliviensis A.DC. (pink and white varieties), Dahlia pinnata Cav., Salvia farinacea Benth., S. × jamensis J.Compton, S. ‘Purple Queen’ Tulbaghia simmleri Beauv. ‘Alba’, T. violacea Harv. ‘Alba’, chosen for their different colours and corolla morphologies. Primary and secondary metabolites have been determined. The highest protein content was found in T. violacea ‘Alba’ and D. pinnata. The Salvia species showed the highest soluble sugar content. The two Tulbaghia species were notable for hexose and ascorbic acid content. D. pinnata showed the highest polyphenols, flavonoids and carotenoid content, with the highest antiradical activity.
Transcription factor binding site prediction in vivousing DNA sequence and shape features
Creators: name: Mathelier, Anthony
name: Yang, Lin
name: Tsu-Pei Chiu
name: Rohs, Remo
name: Wyeth Wasserman
Publisher: name: F1000Research
Year: 2015

description: The interaction between transcription factors (TFs) and DNA results from a complex interplay between the DNA structure and nucleotide‐amino acid contacts. We previously developed a sequence‐based flexible hidden Markov model approach for TF binding site (TFBS) prediction, the Transcription Factor Flexible Model (TFFM). We describe a novel approach which builds upon the TFFMs by integrating four DNA shape features derived from the DNAshape prediction method: minor groove width, roll, propeller twist, and helix twist. The model is an ensemble machine learning framework combining the sequence and shape information of the DNA at TFBSs. Our results from 400 human ENCODE ChIP‐seq data‐sets show that adding DNA shape features to the TFFM scores in the machine learning framework consistently improves the prediction of TFBSs. Namely, combining DNA sequence and shape information perform better than current methods to discriminate ChIP‐ seq from background sequences. We observe significant improvements in TFBS predictions, which are not specific to TFFMs as they are reproduced when using the classical position‐specific scoring matrices in the same framework. From the TFs under study, the results highlight that incorporating DNA shape information is most beneficial when applied to the E2F and MADS‐domain TF families. A further validation on plant ChIP‐seq data underline the importance of the propeller twist at a specific position of the TFBSs for seven plant MADS‐domain TFs. Our approach corresponds to the in vivo counterpart of previous in vitro studies underscoring the importance of DNA shape for TFBS recognition.
Exciton dissociation at donor-acceptor polymer heterojunctions: quantum nonadiabatic dynamics and effective-mode analysis
Creators: name: Tamura, Hiroyuki
name: Bittner, Eric R.
name: Burghardt, Irene
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The quantum-dynamical mechanism of photoinduced subpicosecond exciton dissociation and the concomitant formation of a charge-separated state at a TFB:F8BT polymer heterojunction is elucidated. The analysis is based upon a two-state vibronic coupling Hamiltonian including an explicit 24-mode representation of a phonon bath comprising high-frequency (C$=$C stretch) and low-frequency (torsional) modes. The initial relaxation behavior is characterized by coherent oscillations, along with the decay through an extended nonadiabatic coupling region. This region is located in the vicinity of a conical intersection hypersurface. A central ingredient of the analysis is a novel effective mode representation, which highlights the role of the low-frequency modes in the nonadiabatic dynamics. Quantum dynamical simulations were carried out using the multiconfiguration time-dependent Hartree (MCTDH) method.
Deliverable-D-JIP2-2.1.0-Inventory-tools-risk-assessment (COHESIVE)
Creators: name: Dewar, Rob
Publisher: name: Zenodo
Year: 2021
Subjects: COHESIVE

description: OHEJP Project COHESIVE: An inventory of the risk assessment tools sourced under WP2.2 of the COHESIVE project, to be integrated into a decision-support tool for One Health risk assessment
Carbon Paste Electrode Modified Poly-Glutamic Acid (PGA) with Molecularly Imprinted for Detection of Rhodamine B
Creators: name: Setiyanto, Henry
name: Ferizal, Ferizal
name: Saraswaty, Vienna
name: Rahayu, Ria Sri
name: Zulfikar, Muhammad Ali
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Rhodamine B is a synthetic dye used for coloring textiles, paper and ceramics. In addition, Rhodamine B is also often used for coloring ingredients in food ingredients such as crackers, syrups, candy, cakes, and is often used for coloring lipsticks. The accumulation of Rhodamine B in the body can cause liver, kidney and lymph damage. In this study, a modified carbon paste electrode (CPE) with molecularly imprinted polymers (glutamic acid) was developed for the determination of rhodamine B using potentiometric techniques. The modification was carried out by electropolymerization of glutamic acid monomer from a solution containing 3.0 mM glutamic acid and 1.0 mM rhodamine B in a phosphate buffer pH 7 using a cyclic voltammetry technique of 15 cycles in the potential range between (-0.2 V) to (1.8 V) with a scan rate of 100 mV/sec. Measurements with these electrodes have optimum performance at pH 4. The Nerst factor is 29.2 mV/decade. The measurement range is 10-5 M to 10-2 M. With the detection limit of Rhodamine B which can be measured by the electrode is 8.91 x 10-6 M. This electrode has a fairly good value of accuracy and precision, and does not have a significant difference. when compared with the UV-Vis spectrophotometric method.
description: 6 pages, 1 figure
AMR Simulations of the Cosmological Light Cone: SZE Surveys of the Synthetic Universe
Creators: name: Hallman, Eric J.
name: O'Shea, Brian W.
name: Norman, Michael L.
name: Wagner, Rick
name: Burns, Jack O.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present preliminary results from simulated large sky coverage (~100 square degrees) Sunyaev-Zeldovich effect (SZE) cluster surveys using the cosmological adaptive mesh refinement N-body/hydro code Enzo. We have generated simulated light cones to match the resolution and sensitivity of current and future SZE instruments. These simulations are the most advanced calculations of their kind. The simulated sky surveys allow a direct comparison of large N-body/hydro cosmological simulations to current and pending sky surveys. Our synthetic surveys provide an indispensable guide for observers in the interpretation of large area sky surveys, and will develop the tools necessary to discriminate between models for cluster baryonic physics, and to accurately determine cosmological parameters.
description: 3 pages, to appear in proceedings of Heating vs. Cooling in Galaxies and Clusters of Galaxies, MPA/ESO/MPE/USM Joint Astronomy Conference
Dynamics of a sphere with inhomogeneous slip boundary conditions in Stokes flow
Creators: name: Willmott, Geoff
Publisher: name: arXiv
Year: 2008
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The dynamic resistance of a sphere with a general inhomogeneous slip boundary condition is analysed in Newtonian unbounded uniform flow at low Reynolds number. The boundary condition is treated as a perturbation to a homogeneous sphere, assuming that the slip length magnitude b is much smaller than the sphere radius a. To first order, the effect of inhomogeneous slip is the same as that of a radial deformity of magnitude b. Full resistance tensors are presented and the dynamics of a hemispherical inhomogeneous sphere, such as a Janus particle, are explicitly calculated.
description: 13 Pages, 2 figures
Mode Angular Degree Identification in Subgiant Stars with Convolutional Neural Networks based on Power Spectrum
Creators: name: Du, Minghao
name: Bi, Shaolan
name: Zhang, Xianfei
name: Li, Yaguang
name: Li, Tanda
name: Shi, Ruijie
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Identifying the angular degrees $l$ of oscillation modes is essential for asteroseismology and depends on visual tagging before fitting power spectra in a so-called peakbagging analysis. In oscillating subgiants, radial ($l$= 0) mode frequencies distributed linearly in frequency, while non-radial ($l$ >= 1) modes are p-g mixed modes that having a complex distribution in frequency, which increased the difficulty of identifying $l$. In this study, we trained a 1D convolutional neural network to perform this task using smoothed oscillation spectra. By training simulation data and fine-tuning the pre-trained network, we achieved a 95 per cent accuracy on Kepler data.
description: 9 pages, 10 figures, accepted by MNRAS