cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Development of a natural product library for components of African Traditional Medicine and virtual Screening for potential antischistosomiasis agents
Creators: name: Fidele Ntie-Kang
Publisher: name: F1000Research
Year: 2015

description: The African continent is very rich in biodiversity and some of the medicinal plants growing on the continent have been used by its local populations in traditional preparations (marcerations, concoctions, infusions, incisions, steam baths, etc.) for the treatment of several ailments. The knowledge of the ethnobotanical uses of some of these plants has motivated research groups spread across the continent to engage in the isolation and characterisation of the natural products contained within the barks, roots, stems, leaves, etc. of the medicinal plants with the view of investigating the ethnobotanical uses and/or developing phytomedicines based on African medicinal plants. It is our aim within this study to make available (online) the current knowledge on ethnobotanical uses of the medicinal plants as well as the three dimensional (3D) structures, physico-chemical properties and measured activities of the compounds which have been isolated from medicinal plants in Central Africa, with the view of assisting in the drug discovery process.

The current proposal also includes epigenetic drug discovery against Schistosoma mansoni, targeting histone modifying enzymes. This will comprise zinc dependent histonedeacetylases (HDACs), NAD dependent histone deacetylases Sirtuins (Sirt2) and class 1 protein arginine/lysine methyltransferases (RMTs and KMTs). For most of the enzymes, crystal structures from mammalians are available in the PDB. S. mansoni histone deacetylase 8 (smHDAC8), for example,  is a functional acetyl-L-lysine deacetylase that plays an important role in parasite infectivity and is therefore a relevant target for drug discovery. The determination of the atomic structures of smHDAC8 in complex with generic HDAC inhibitors revealed that the architecture of the smHDAC8 active site pocket differed significantly from its human counterparts and provided a framework for the development of inhibitors selectively interfering with schistosome epigenetic mechanisms. For the parasite enzymes only recently, the crystal structure of smHDAC8 has been solved by the SEtTReND consortium. For the other parasitic enzymes we will generate homology models to carry out docking experiments, followed by virtual screening, synthetic modifications of scaffolds and biological assays in vitro. Most promising molecules will be tested in vivo on cultures of S. mansoni and in Schistosoma infected mice in order to identify and validate useful lead compounds that could further be exploited and developed as candidate molecules that can progress to clinical trials.
Don't cross the streams: caustics from Fuzzy Dark Matter
Creators: name: Dalal, Neal
name: Bovy, Jo
name: Hui, Lam
name: Li, Xinyu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study how tidal streams from globular clusters may be used to constrain the mass of ultra-light dark matter particles, called `fuzzy' dark matter (FDM). A general feature of FDM models is the presence of ubiquitous density fluctuations in bound, virialized dark matter structures, on the scale of the de Broglie wavelength, arising from wave interference in the evolving dark matter distribution. These time-varying fluctuations can disturb the motions of stars, leading to potentially observable signatures in cold thin tidal streams in our own Galaxy. The study of this effect has been hindered by the difficulty in simulating the FDM wavefunction in Milky Way-sized systems. We present a simple method to evolve realistic wavefunctions in nearly static potentials, that should provide an accurate estimate of this granulation effect. We quantify the impact of FDM perturbations on tidal streams, and show that initially, while stream perturbations are small in amplitude, their power spectra exhibit a sharp cutoff corresponding to the de Broglie wavelength of the FDM potential fluctuations. Eventually, when stream perturbations become nonlinear, fold caustics generically arise that lead to density fluctuations with universal behavior. This erases the signature of the de Broglie wavelength in the stream density power spectrum, but we show that it will still be possible to determine the FDM mass in this regime, by considering the fluctuations in quantities like angular momenta or actions.
description: Comments welcome. To be submitted to JCAP
Inflation by non-minimal coupling
Creators: name: Park, Seong Chan
name: Yamaguchi, Satoshi
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Inflationary scenarios based on simple non-minimal coupling and its generalizations are studied. Generalizing the form of non-minimal coupling to "K(phi)R" with an arbitrary function K(phi), we show that the flat potential still is obtainable when V(phi)/K^2(phi) is asymptotically constant. Very interestingly, if the ratio of the dimensionless self-coupling constant of the inflaton field and the non-minimal coupling constant is small the cosmological observables for general monomial cases are in good agreement with recent observational data.
description: 9 pages, 1 figure
SubICap: Towards Subword-informed Image Captioning
Creators: name: Sharif, Naeha
name: Bennamoun, Mohammed
name: Liu, Wei
name: Shah, Syed Afaq Ali
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Existing Image Captioning (IC) systems model words as atomic units in captions and are unable to exploit the structural information in the words. This makes representation of rare words very difficult and out-of-vocabulary words impossible. Moreover, to avoid computational complexity, existing IC models operate over a modest sized vocabulary of frequent words, such that the identity of rare words is lost. In this work we address this common limitation of IC systems in dealing with rare words in the corpora. We decompose words into smaller constituent units 'subwords' and represent captions as a sequence of subwords instead of words. This helps represent all words in the corpora using a significantly lower subword vocabulary, leading to better parameter learning. Using subword language modeling, our captioning system improves various metric scores, with a training vocabulary size approximately 90% less than the baseline and various state-of-the-art word-level models. Our quantitative and qualitative results and analysis signify the efficacy of our proposed approach.
description: 8 pages
Quantum dynamics in electron-nuclei coupled spin system in quantum dots: Bunching, revival, and quantum correlation in electron-spin measurements
Creators: name: Cakir, Ozgur
name: Takagahara, Toshihide
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate quantum dynamics in the electron-nuclei coupled spin system in quantum dots and clarify the fundamental features of quantum correlation induced via successive electron spin measurements. This quantum correlation leads to interesting phenomena such as the bunching of outcomes in the electron spin measurements and the revival of an arbitrary initial electron spin state. The nuclear spin system is also affected by the quantum correlation and is in fact squeezed via conditional measurements or postselection. This squeezing is confirmed by calculating the increase in the purity of the nuclear spin system. Thus the successive electron spin measurements provide a probabilistic method to squeeze the nuclear spin system. These new features are predicted not only for the case of a double quantum dots occupied by a pair of electrons but also for the case of a single quantum dot occupied by a single electron or a pair of electrons.
description: 21 pages, to be published in Phys. Rev. B
Grammatical elicitation: Verbal agreement and clusivity
Creators: name: Ovelar, Irma Easty
name: Drummond, Emily
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: gug

description: Elicitation of verbal paradigms for intransitive and transitive verbs, focusing on verbal agreement, pronouns, and inclusive and exclusive we.
Dense Attention Fluid Network for Salient Object Detection in Optical Remote Sensing Images
Creators: name: Zhang, Qijian
name: Cong, Runmin
name: Li, Chongyi
name: Cheng, Ming-Ming
name: Fang, Yuming
name: Cao, Xiaochun
name: Zhao, Yao
name: Kwong, Sam
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Despite the remarkable advances in visual saliency analysis for natural scene images (NSIs), salient object detection (SOD) for optical remote sensing images (RSIs) still remains an open and challenging problem. In this paper, we propose an end-to-end Dense Attention Fluid Network (DAFNet) for SOD in optical RSIs. A Global Context-aware Attention (GCA) module is proposed to adaptively capture long-range semantic context relationships, and is further embedded in a Dense Attention Fluid (DAF) structure that enables shallow attention cues flow into deep layers to guide the generation of high-level feature attention maps. Specifically, the GCA module is composed of two key components, where the global feature aggregation module achieves mutual reinforcement of salient feature embeddings from any two spatial locations, and the cascaded pyramid attention module tackles the scale variation issue by building up a cascaded pyramid framework to progressively refine the attention map in a coarse-to-fine manner. In addition, we construct a new and challenging optical RSI dataset for SOD that contains 2,000 images with pixel-wise saliency annotations, which is currently the largest publicly available benchmark. Extensive experiments demonstrate that our proposed DAFNet significantly outperforms the existing state-of-the-art SOD competitors. https://github.com/rmcong/DAFNet_TIP20
description: Accepted by IEEE Transactions on Image Processing, EORSSD dataset: https://github.com/rmcong/EORSSD-dataset
An evaluation of a long term care aide/ESL program
Creators: name: Wilson, Silvia M.
Publisher: name: University of British Columbia
Year: 2009

description: This two-part study evaluates a government sponsored Long Term Care Aide/ESL Program taken by a group of immigrant women. The purpose of the first part of the study was to assess how effective a B.C. government sponsored Long Term Care Aide/ESL program was in preparing a group of immigrant women for the workplace. A questionnaire was used to determine demographics and employment status. Also, it obtained perceptions on the strengths and weaknesses of the program. The purpose of the second part of this study was to hear the women's personal insights and voices about their experiences while taking the program and after the program. Semi-structured interviews were used to obtain these stories. Results from the quantitative questionnaire indicated that 94% of the immigrant women who had taken this course were employed as care aides. Three years after the completion this program, the women felt that the course had provided them with both a vocational skill and more English language skills. Results from the qualitative portion of this paper focused on how the women felt about their experiences in this Long Term Care Aide/ESL program in their own words. The data were analyzed and put into themes. Theme 1 was "The pain of renewal". It presented their collective stories of being an immigrant and struggling to begin again. Theme 2 was "The costs and the benefits". This theme presented the women's insights on working as care aides. Most of the women liked their jobs but found trying to secure a full time job difficult. Theme 3 was "The need to learn the language of care". All the women interviewed wanted to have more "caring" language, the "everyday" language to relate to their clients. Theme 4 was "Advice to other immigrant women". This theme revealed how some women felt about the work they did. The last theme, Theme 5, was "Hopes and dreams". Half of the women interviewed had aspirations to continue their education and these women were already enrolled in other health care courses. The results of the study are discussed and implications are drawn for research and pedagogy.
4-dimensional aspects of tight contact 3-manifolds
Creators: name: Hedden, Matthew
name: Raoux, Katherine
Publisher: name: arXiv
Year: 2020
Subjects: subject: Geometric Topology (math.GT)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: 57K18, 57K10, 57K41, 57K31, 57R58, 57R65, 57K33, 53D10, 53D40, 57K33, 57K40, 57K43

description: In this article we conjecture a 4-dimensional characterization of tightness: a contact structure is tight if and only if a slice-Bennequin inequality holds for smoothly embedded surfaces in Yx[0,1]. An affirmative answer to our conjecture would imply an analogue of the Milnor conjecture for torus knots: if a fibered link L induces a tight contact structure on Y then its fiber surface maximize Euler characteristic amongst all surfaces in Yx[0,1] with boundary L. We provide evidence for both conjectures by proving them for contact structures with non-vanishing Ozsváth-Szabó contact invariant. We also show that any subsurface of a page of an open book inducing a contact structure with non-trivial invariant maximize "slice" Euler-characteristic for its boundary, and conjecture that this holds more generally for open books inducing tight contact structures.
description: 14 pages, 1 figure
Teichmüller Theory of Bordered Surfaces
Creators: name: Chekhov, Leonid
Publisher: name: arXiv
Year: 2006
Subjects: subject: Algebraic Geometry (math.AG)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We propose the graph description of Teichmüller theory of surfaces with marked points on boundary components (bordered surfaces). Introducing new parameters, we formulate this theory in terms of hyperbolic geometry. We can then describe both classical and quantum theories having the proper number of Thurston variables (foliation-shear coordinates), mapping-class group invariance (both classical and quantum), Poisson and quantum algebra of geodesic functions, and classical and quantum braid-group relations. These new algebras can be defined on the double of the corresponding graph related (in a novel way) to a double of the Riemann surface (which is a Riemann surface with holes, not a smooth Riemann surface). We enlarge the mapping class group allowing transformations relating different Teichmüller spaces of bordered surfaces of the same genus, same number of boundary components, and same total number of marked points but with arbitrary distributions of marked points among the boundary components. We describe the classical and quantum algebras and braid group relations for particular sets of geodesic functions corresponding to $A_n$ and $D_n$ algebras and discuss briefly the relation to the Thurston theory.
description: This is a contribution to the Vadim Kuznetsov Memorial Issue on Integrable Systems and Related Topics, published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA/
Study of $K^*_0(1430)$ and $a_0(980)$ from $B\to K^*_0(1430)π$ and $B\to a_0(980)K$ Decays
Creators: name: Shen, Yue-Long
name: Wang, Wei
name: Zhu, Jin
name: Lü, Cai-Dian
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We use the decay modes $B \to K^*_0(1430) π$ and $B \to a_0(980) K$ to study the scalar mesons $K^*_0(1430)$ and $a_0(980)$ within perturbative QCD framework. For $B \to K^*_0(1430) π$, we perform our calculation in two scenarios of the scalar meson spectrum. The results indicate that scenario II is more favored by experimental data than scenario I. The important contribution from annihilation diagrams can enhance the branching ratios about 50% in scenario I, and about 30% in scenario II. The predicted branching ratio of $B \to a_0(980) K$ in scenario I is also less favored by the experiments. The direct CP asymmetries in $B \to K^*_0(1430) π$ are small, which are consistent with the present experiments.
description: More references are added. Published Version
Vacuum structure revealed by over-improved stout-link smearing compared with the overlap analysis for quenched QCD
Creators: name: Ilgenfritz, E. -M.
name: Leinweber, D.
name: Moran, P.
name: Koller, K.
name: Schierholz, G.
name: Weinberg, V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: A detailed comparison is made between the topological structure of quenched QCD as revealed by the recently proposed over-improved stout-link smearing in conjunction with an improved gluonic definition of the topological density on one hand and a similar analysis made possible by the overlap-fermionic topological charge density both with and without variable ultraviolet cutoff $λ_{cut}$. The matching is twofold, provided by fitting the density-density two-point functions on one hand and by a point-by-point fitting of the topological densities according to the two methods. We point out the similar cluster structure of the topological density for moderate smearing and $200 \mathrm{MeV} < λ_{cut} < 600 \mathrm{MeV}$, respectively. We demonstrate the relation of the gluonic topological density for extensive smearing to the location of the overlap zero modes and the lowest overlap non-zero mode as found for the unsmeared configurations.
description: 19 pages, 18 figures
Search for B+ -> J/psi eta' K+ and B0 -> J/psi eta' Ks0 Decays
Creators: name: Xie, Q. L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We report the results of searches for B+ -> J/psi eta' K+ and B0 -> J/psi eta' Ks0 decays, using a sample of 388 x 10^6 BBbar pairs collected with the Belle detector at the Upsilon(4S) resonance. No statistically significant signal is found for either of the two decay modes and upper limits for the branching fractions are determined to be B(B+ -> J/psi eta' K+) < 8.8 x 10^-5 and B(B0 -> J/psi eta' Ks0) < 2.5 x 10^-5 at 90% confidence level.
description: 5 pages, 6 figures, submitted to PRD Brief Report
Higher dimensional Yang-Mills black holes in third order Lovelock gravity
Creators: name: Mazharimousavi, S. Habib
name: Halilsoy, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: By employing the higher (N\TEXTsymbol{>}5) dimensional version of the Wu-Yang Ansatz we obtain magnetically charged new black hole solutions in the Einstein-Yang-Mills-Lovelock (EYML) theory with second ($α_{2}$) and third ($α_{3}$)order parameters. These parameters, where $α_{2}$ is also known as the Gauss-Bonnet parameter, modify the horizons (and the resulting thermodynamical properties) of the black holes. It is shown also that asymptotically ($r\to \infty $), these parameters contribute to an effective cosmological constant -without cosmological constant- so that the solution behaves de-Sitter (Anti de-Sitter) like.
description: 14 pages, 3 figures, to appear in Phys. Lett. B
A Hierarchical Graph Signal Processing Approach to Inference from Spatiotemporal Signals
Creators: name: Ghoroghchian, Nafiseh
name: Draper, Stark C.
name: Genov, Roman
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: Machine Learning (cs.LG)
subject: Applications (stat.AP)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Motivated by the emerging area of graph signal processing (GSP), we introduce a novel method to draw inference from spatiotemporal signals. Data acquisition in different locations over time is common in sensor networks, for diverse applications ranging from object tracking in wireless networks to medical uses such as electroencephalography (EEG) signal processing. In this paper we leverage novel techniques of GSP to develop a hierarchical feature extraction approach by mapping the data onto a series of spatiotemporal graphs. Such a model maps signals onto vertices of a graph and the time-space dependencies among signals are modeled by the edge weights. Signal components acquired from different locations and time often have complicated functional dependencies. Accordingly, their corresponding graph weights are learned from data and used in two ways. First, they are used as a part of the embedding related to the topology of graph, such as density. Second, they provide the connectivities of the base graph for extracting higher level GSP-based features. The latter include the energies of the signal's graph Fourier transform in different frequency bands. We test our approach on the intracranial EEG (iEEG) data set of the Kaggle epileptic seizure detection contest. In comparison to the winning code, the results show a slight net improvement and up to 6 percent improvement in per subject analysis, while the number of features are decreased by 75 percent on average.
A lattice dynamical treatment for the total potential energy of single-walled carbon nanotubes and its applications: relaxed equilibrium structure, elastic properties, and vibrational modes of ultra-narrow tubes
Creators: name: Jiang, Jin-Wu
name: Tang, Hui
name: Wang, Bing-Shen
name: Su, Zhao-Bin
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this paper, we proposed a lattice dynamic treatment for the total potential energy for single-walled carbon nanotubes (SWCNT's) which is, apart from a parameter for the non-linear effects, extracted from the vibrational energy of the planar graphene sheet. Based upon the proposal, we investigated systematically the relaxed lattice configuration for narrow SWCNT's, the strain energy, the Young's modulus and Poisson ratio, and the lattice vibrational properties respected to the relaxed equilibrium tubule structure. Our calculated results for various physical quantities are nicely in consistency with existing experimental measurements. Particularly, we verified that the relaxation effect brings the bond length longer and the frequencies of various optical vibrational modes softer; Our calculation provides the evidence that the Young's modulus of armchair tube exceeds that of the planar graphene sheet, and the large diameter limits of the Young's modulus and Poisson ratio are in agreement with the experimental values of the graphite; The calculated radial breathing modes for the ultra narrow tubes with diameter range between 0.2 - 0.5 nm coincide the experimental results and the existing {\it ab initio} calculations with satisfaction; For narrow tubes of diameter 2 nm, the calculated frequencies of optical modes in tubule tangential plane as well as those of radial breathing modes are also in good agreement with the experimental measurement. In addition, our calculation shows that various physical quantities of relaxed SWCNT's can actually be expanded in terms of the chiral angle defined for the correspondent ideal SWCNT's.
description: 9 pages, 7 figures
Does Fluctuating Nonlinear Hydrodynamics Support an Ergodic-Nonergodic Transition?
Creators: name: Das, Shankar P.
name: Mazenko, Gene F.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Despite its appeal, real and simulated glass forming systems do not undergo an ergodic-nonergodic (ENE) transition. We reconsider whether the fluctuating nonlinear hydrodynamics (FNH) model for this system, introduced by us in 1986, supports an ENE transition. Using nonperturbative arguments, with no reference to the hydrodynamic regime, we show that the FNH model does not support an ENE transition. Our results support the findings in the original paper. Assertions in the literature questioning the validity of the original work are shown to be in error.
description: 11 pages
Auf dem Weg zu einer Nachhaltigkeitsbewertung landwirtschaftlicher Systeme. TAB-Fokus
Creators: name: Meyer, Rolf
name: Priefer, Carmen
name: Sauter, Arnold  [Mitarb.]
Publisher: name: Büro für Technikfolgen-Abschätzung beim Deutschen Bundestag (TAB)
Year: 2021
Subjects: Policy
Brief

description: Nachhaltigkeitsbewertungen im Bereich Landwirtschaft konzentrieren sich einerseits auf den einzelnen landwirtschaftlichen Betrieb und andererseits auf den gesamten Agrarsektor. Aggregationsstufen dazwischen wurden bisher kaum untersucht. Vergleiche von ökologischer und konventioneller Landbewirtschaftung und ihre wissenschaftliche Auswertung liefern für eine begrenzte Anzahl von Nachhaltigkeitsindikatoren gesicherte Aussagen zu grundsätzlichen Unterschieden. Differenzierungen nach wichtigen naturräumlichen und ökonomischen Bedingungen der landwirtschaftlichen Betriebe sowie eine Abbildung zeitlicher Entwicklungen der Nachhaltigkeitsperformance von ökologischer und konventioneller Landwirtschaft sind dagegen nicht möglich. Eine vergleichende Nachhaltigkeitsbewertung landwirtschaftlicher Systeme unterhalb der Ebene des gesamten Agrarsektors bietet die Chance, differenziertere Informationen zur landwirtschaftlichen Nachhaltigkeit zu generieren. Eine (Weiter-)Entwicklung entsprechender Nachhaltigkeitsbewertungssysteme ist allerdings noch mit umfangreichem Entwicklungs- und Handlungsbedarf verbunden.
Grammatical elicitation: Verbal agreement
Creators: name: Gómez, María
name: Drummond, Emily
name: Bossi, Madeline
name: Dabkowski, Maksymilian
name: Grabowski, Emily
name: Jarvis, Rebecca
name: Khuu, Phuong
name: Michael, Lev
name: Russell, Katherine
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: gug

description: Elicitation of verbal paradigms for intransitive and transitive verbs, with a focus on verbal agreement and pronouns.
The Intriguing Flow Behavior of Soft Materials
Creators: name: Bandyopadhyay, Ranjini
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Materials that can be deformed by thermal stresses at room temperature are called soft materials. Colloidal suspensions comprising solid particles evenly distributed in a fluid phase (smoke, fog, ink and milk, for example), emulsions(mayonnaise, lotions and creams), pastes (tomato ketchup, toothpaste), granular media (a bag of rice or sand), and polymer gels (polysaccharide gels) can be categorized as soft materials and are ubiquitous both at home and in industrial setups. Soft materials exhibit rich flow and deformation behaviors characterized by intriguing properties such as shear-thinning or thixotropy, shear-thickening or dilatancy, non-zero normal and yield stresses, etc. This article explains some of the mysterious flow properties of soft materials.
description: 14 pages, 6 figures
Grammatical elicitation: Possessive phrases
Creators: name: Gómez, María
name: Dabkowski, Maksymilian
name: Bossi, Madeline
name: Drummond, Emily
name: Grabowski, Emily
name: Jarvis, Rebecca
name: Khuu, Phuong
name: Michael, Lev
name: Russell, Katherine
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: gug

description: Possessive paradigms for 'head,' 'mother,' 'father,' 'eye,' 'dog,' 'water,' 'clear water,' 'feather,' 'fire,' 'cloud, day,' 'ear.'
Relationship between quantum mechanics with and without monopoles
Creators: name: Mardoyan, Levon
name: Nersessian, Armen
name: Yeranyan, Armen
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We show that the inclusion of the monopole field in the three- and five-dimensional spherically symmetric quantum mechanical systems, supplied by the addition of the special centrifugal term, does not yield any change in the radial wavefunction and in the functional dependence of the energy spectra on quantum numbers. The only change in the spectrum is the lift of the range of the total and azimuth quantum numbers. The changes in the angular part wavefunction are independent of the specific choice of the (central) potential. We also present the integrable model of the spherical oscillator which is different from the Higgs oscillator.
description: LaTeX, 6 pages
DeepM&Mnet: Inferring the electroconvection multiphysics fields based on operator approximation by neural networks
Creators: name: Cai, Shengze
name: Wang, Zhicheng
name: Lu, Lu
name: Zaki, Tamer A
name: Karniadakis, George Em
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Electroconvection is a multiphysics problem involving coupling of the flow field with the electric field as well as the cation and anion concentration fields. For small Debye lengths, very steep boundary layers are developed, but standard numerical methods can simulate the different regimes quite accurately. Here, we use electroconvection as a benchmark problem to put forward a new data assimilation framework, the DeepM&Mnet, for simulating multiphysics and multiscale problems at speeds much faster than standard numerical methods using pre-trained neural networks (NNs). We first pre-train DeepONets that can predict independently each field, given general inputs from the rest of the fields of the coupled system. DeepONets can approximate nonlinear operators and are composed of two sub-networks, a branch net for the input fields and a trunk net for the locations of the output field. DeepONets, which are extremely fast, are used as building blocks in the DeepM&Mnet and form constraints for the multiphysics solution along with some sparse available measurements of any of the fields. We demonstrate the new methodology and document the accuracy of each individual DeepONet, and subsequently we present two different DeepM&Mnet architectures that infer accurately and efficiently 2D electroconvection fields for unseen electric potentials. The DeepM&Mnet framework is general and can be applied for building any complex multiphysics and multiscale models based on very few measurements using pre-trained DeepONets in a plug-and-play mode.
The two-component physics in cuprates in the real space and in the momentum representation
Creators: name: Gor'kov, Lev P.
name: Teitel'baum, Gregory B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Gradual evolution of two phase coexistence between dynamical and static regimes in cuprates is first investigated in the real space by making use of the available neutron scattering, NMR and mSR data. Analysis of the Hall effect and the ARPES spectra reveals the presence of two groups of charge carriers in LSCO. The T-dependent component is due to the thermal activation of bound electron-hole structures seen near antinodal points in the Brillouin zone, thus introducing the two-component physics also for the momentum representation. Interpretation of so-called "van Hove bands" undergoes drastic changes. Importance of the findings for pseudo-gap physics is stressed. Relation to some recent STM and STS results is discussed.
description: 8 pages, 6 figures, reported at LEHTSC 2007 conference (Tsukuba), submitted to Journal of Physics: Conference Series
Hidden Symmetry of Higher Dimensional Kerr-NUT-AdS Spacetimes
Creators: name: Kubiznak, David
name: Frolov, Valeri P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is well known that 4-dimensional Kerr-NUT-AdS spacetime possesses the hidden symmetry associated with the Killing-Yano tensor. This tensor is "universal" in the sense that there exist coordinates where it does not depend on any of the free parameters of the metric. Recently the general higher dimensional Kerr-NUT-AdS solutions of the Einstein equations were obtained. We demonstrate that all these metrics with arbitrary rotation and NUT parameters admit a universal Killing-Yano tensor. We give an explicit presentation of the Killing-Yano and Killing tensors and briefly discuss their properties.
description: 4 pages, some discussion and references are added
Deliverable-D-JIP2-D3.5-Retrospective-Systems-Mapping-Detection-of-Outbreaks (COHESIVE)
Creators: name: Dewar, Rob
Publisher: name: Zenodo
Year: 2021
Subjects: COHESIVE

description: OHEJP Project COHESIVE: Deliverable report describing the activities done under COHESIVE task 3.3. This includes a systems mapping of the UK public information system for Q fever and a process map of UK Q fever surveillance systems. Themes emerged from these mapping exercises, which may help in the improvement of both surveillance and public information systems
Towards Universal Physical Attacks On Cascaded Camera-Lidar 3D Object Detection Models
Creators: name: Abdelfattah, Mazen
name: Yuan, Kaiwen
name: Wang, Z. Jane
name: Ward, Rabab
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We propose a universal and physically realizable adversarial attack on a cascaded multi-modal deep learning network (DNN), in the context of self-driving cars. DNNs have achieved high performance in 3D object detection, but they are known to be vulnerable to adversarial attacks. These attacks have been heavily investigated in the RGB image domain and more recently in the point cloud domain, but rarely in both domains simultaneously - a gap to be filled in this paper. We use a single 3D mesh and differentiable rendering to explore how perturbing the mesh's geometry and texture can reduce the robustness of DNNs to adversarial attacks. We attack a prominent cascaded multi-modal DNN, the Frustum-Pointnet model. Using the popular KITTI benchmark, we showed that the proposed universal multi-modal attack was successful in reducing the model's ability to detect a car by nearly 73%. This work can aid in the understanding of what the cascaded RGB-point cloud DNN learns and its vulnerability to adversarial attacks.
Perfect Crystals for U_q(D_4^{(3)})
Creators: name: Kashiwara, Masaki
name: Misra, Kailash C.
name: Okado, Masato
name: Yamada, Daisuke
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Algebra (math.QA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 17B37

description: A perfect crystal of any level is constructed for the Kirillov-Reshetikhin module of $U_q(D_4^{(3)})$ corresponding to the middle vertex of the Dynkin diagram. The actions of Kashiwara operators are given explicitly. It is also shown that this family of perfect crystals is coherent. A uniqueness problem solved in this paper can be applied to other quantum affine algebras.
description: 27 pages
Spin alignment measurements of the $K^{*0}(892)$ and $ϕ(1020)$ vector mesons at RHIC
Creators: name: Abelev, B. I.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We present the first spin alignment measurements for the $K^{*0}(892)$ and $ϕ(1020)$ vector mesons produced at mid-rapidity with transverse momenta up to 5 GeV/c at $\sqrt{s_{NN}}$ = 200 GeV at RHIC. The diagonal spin density matrix elements with respect to the reaction plane in Au+Au collisions are $ρ_{00}$ = 0.32 $\pm$ 0.04 (stat) $\pm$ 0.09 (syst) for the $K^{*0}$ ($0.8
description: 7 pages, 4 figures. fig.1 updated; one more reference added, one typo corrected, published in PRC.77.061902
Zur ökumenischen Relevanz orthodoxer eucharistischer Theologie und Frömmigkeit
Creators: name: Goltz, Hermann
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 47 Nr. 4 (1998): Ökumenische Rundschau, Band 47, Heft 4
Coulomb nuclear interference effect in dipion production in ultraperipheral heavy ion collisions
Creators: name: Hagiwara, Yoshikazu
name: Zhang, Cheng
name: Zhou, Jian
name: Zhou, Ya-jin
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study exclusive $π^+ π^-$ pair production near $ρ^0$ resonance peak in ultraperipheral heavy ion collisions. Pion pair can either be produced via two photon fusion process or from the decay of $ρ^0$ in photon-nuclear reaction. At very low pair transverse momentum, the electromagnetic and nuclear amplitudes become comparable. We show that the Coulomb nuclear interference amplitude gives rise to sizable $\cos ϕ$ and $\cos 3ϕ$ azimuthal asymmetries, which can be used to constrain the phase of the dipole-nucleus scattering amplitude.
description: 9 pages, 3 figures
Existence of Crystal Bases for Kirillov-Reshetikhin Modules of Type D
Creators: name: Okado, Masato
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Algebra (math.QA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 17B37

description: We show that a crystal base exists for any Kirillov-Reshetikhin module of type $D_n^{(1)}$, generalizing the result of [(KMN)^2] for the end nodes of the Dynkin diagram of $D_n$.
description: 21 pages. A reference added
Calcolo Scientifico: Prime Metodologie Quantitative per un Ambiente di Produzione
Creators: name: A. Ciampa
name: E. Mazzoni
Publisher: name: INFN Open Access Repository
Year: 2009

description: Vengono definiti il contesto e l'attività di Calcolo Scientifico, prendendo ad esempio la Sezione di Pisa, intesa come produzione, pensando ad un approccio di tipo industriale. Si propone una prima metodologia per la valutazione quantitativa dei livelli di produzione, dell'efficienza nell'utilizzo degli impianti e della distribuzione dei costi.
La valutazione dei consumi e l'attribuzione dei costi sono basate sul consumo di energia elettrica: viene descritto come questo parametro possa essere considerato solo un esempio pratico e viene accennato a quali tipi di consumi, costi, modalità possa essere estesa l'applicazione della metodologia proposta.
I risultati di un survey con applicazione alla Sezione di Pisa sono allegati in appendice
Extreme Value Statistics of Eigenvalues of Gaussian Random Matrices
Creators: name: Dean, David S.
name: Majumdar, Satya N.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We compute exact asymptotic results for the probability of the occurrence of large deviations of the largest (smallest) eigenvalue of random matrices belonging to the Gaussian orthogonal, unitary and symplectic ensembles. In particular, we show that the probability that all the eigenvalues of an (NxN) random matrix are positive (negative) decreases for large N as ~\exp[-βθ(0) N^2] where the Dyson index βcharacterizes the ensemble and the exponent θ(0)=(\ln 3)/4=0.274653... is universal. We compute the probability that the eigenvalues lie in the interval [ζ_1,ζ_2] which allows us to calculate the joint probability distribution of the minimum and the maximum eigenvalue. As a byproduct, we also obtain exactly the average density of states in Gaussian ensembles whose eigenvalues are restricted to lie in the interval [ζ_1,ζ_2], thus generalizing the celebrated Wigner semi-circle law to these restricted ensembles. It is found that the density of states generically exhibits an inverse square-root singularity at the location of the barriers. These results are confirmed by numerical simulations.
description: 17 pages Revtex, 5 .eps figures included
Normalization of D-instanton Amplitudes
Creators: name: Sen, Ashoke
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: D-instanton amplitudes suffer from various infrared divergences associated with tachyonic or massless open string modes, leading to ambiguous contribution to string amplitudes. It has been shown previously that string field theory can resolve these ambiguities and lead to unambiguous expressions for D-instanton contributions to string amplitudes, except for an overall normalization constant that remains undetermined. In this paper we show that string field theory, together with the world-sheet description of the amplitudes, can also fix this normalization constant. We apply our analysis to the special case of two dimensional string theory, obtaining results in agreement with the matrix model results obtained by Balthazar, Rodriguez and Yin.
description: LaTeX file, 20 pages; v2: minor clarifications and references added
Breaking three generations of silence : a translation of racism, sexism, and classism, in the lives of three Punjabi women in Canada
Creators: name: Gill, Hartej
Publisher: name: University of British Columbia
Year: 2009

description: From the margins of discourse, this autobiographical work disrupts the traditional HEGEMONIC narratives of THEIR INSTITUTIONS and challenges the conventional notions of the genre of autobiography through its form and content. It uncovers and upsets both WESTERN and Punjabi PATRIArchal definitions of THEIR/Their CULTure: Furthermore, it undermines linguistic norms by using a mix of English, Punjabi and some French. Through narratives, prose, poetry, transparent language/languages my words break the long kept silences of three Punjabi women living amidst racism, sexism and classism in THEIR/Their SOCIety Public and private History of THEIR/Their CULTure, fiction and fantasy are juxtaposed through mixed genres and mixed codes, and the fragmented units are not necessarily presented as chronologically linear. Unlike typical autobiographies, I braid together the restrictive lives and painful experiences of my mother, my grandmother, and myself in an attempt to show how THEIR/Their oppressive History and CULTure shape and have shaped our life/lives, our acceptance and our resistance. In doing so I begin to see parallels between the oppression of women and untouchables in Indian Society and the exploitation of minority women and minorities in CANADIAN SOCIETY. My experiment with structure and typography helps me, a semi-trilingual, working/middle class minority woman and EDUCAtor, to construct and deconstruct my personal self and selves in a more meaningful way. This type of meaning making takes precedence over conventional stylistic or established structures. My identity cannot be separated from the languages, CULTures, in which I wander endlessly or from the oppressive conditions of those whose lives have shaped and continue to shape me. Despite the pressure, I cannot choose between these identities. As a result I am forced to continue to negotiate between my identities and live an intricate web of shifting power relations. I realise that the non-contradictory self is impossible.Therefore I must go beyond and create something new. Something that is more than the mere bringing together of identities ~ it is something in the beyond, kithe uther ~ gahan. From my third space I call upon minority women, white women, EDUCators, readers and writers to also go beyond and find a THIRD Space from which to work together in order to reposition the positions of POWER that have been placed upon us through centuries of Oppression and EXPLOITATION. Only by speaking out in my languages, my words, my experiences, my poet's voice, my storying voice, my minority woman's voice, my TEACHer's voice, my fragmented voices, will I begin to overcome the tradition of silence and continue the necessary resistance.
Theoretical study on the electric field effect on magnetism of Pd/Co/Pt thin films
Creators: name: Simon, Eszter
name: Marmodoro, Alberto
name: Mankovsky, Sergiy
name: Ebert, Hubert
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Based on first principles calculations we investigate the electronic and magnetic properties of Pt layers in Pd$(001)$/Co/Pt thin film structures exposed to an external electric field. Due to the Co underlayer, the surface Pt layers have induced moments that are modified by an external electric field. The field induced changes can be explained by the modified spin-dependent orbital hybridization that varies non-linearly with the field strength. We calculate the x-ray absorption and the x-ray magnetic circular dichroism spectra for an applied external electric field and examine its impact on the spectra in the Pt layer around the L$_{2}$ and L$_{3}$ edges. We also determine the layer dependent magneto-crystalline anisotropy and show that the anisotropy can be tuned easily in the different layers by the external electric field.
description: 9 pages, 11 figures
Renormalized Higher Powers of White Noise and the Virasoro-Zamolodchikov-$w_\infty$ Algebra
Creators: name: Accardi, Luigi
name: Boukas, Andreas
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Recently (cf. \cite{ABIDAQP06} and \cite{ABIJMCS06}) L. Accardi and A. Boukas proved that the generators of the second quantized Virasoro--Zamolodchikov--$w_{\infty}$ algebra can be expressed in terms of the Renormalized Higher Powers of White Noise and conjectured that this inclusion might in fact be an identity, in the sense that the converse is also true. In this paper we prove that this conjecture is true. We also explain the difference between this result and the Boson representation of the Virasoro algebra, which realizes, in the 1--mode case (in particular without renormalization), an inclusion of this algebra into the full oscillator algebra. This inclusion was known in the physical literature and some heuristic results were obtained in the direction of the extension of this inclusion to the 1--mode Virasoro--Zamolodchikov--$w_{\infty}$ algebra. However the possibility of an identification of the second quantizations of these two algebras was not even conjectured in the physics literature.
description: 13 pages