cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Effective Demagnetization Factors of Diamagnetic Samples of Various Shapes
Creators: name: Prozorov, R.
name: Kogan, V. G.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Effective demagnetizing factors that connect the sample magnetic moment with the applied magnetic field are calculated numerically for perfectly diamagnetic samples of various non-ellipsoidal shapes. The procedure is based on calculating total magnetic moment by integrating the magnetic induction obtained from a full three dimensional solution of the Maxwell equations using adaptive mesh. The results are relevant for superconductors (and conductors in AC fields) when the London penetration depth (or the skin depth) is much smaller than the sample size. Simple but reasonably accurate approximate formulas are given for practical shapes including rectangular cuboids, finite cylinders in axial and transverse field as well as infinite rectangular and elliptical cross-section strips.
description: updated version, corrected typos etc
Eigenvalues of Killing Tensors and Separable Webs on Riemannian and Pseudo-Riemannian Manifolds
Creators: name: Chanu, Claudia
name: Rastelli, Giovanni
Publisher: name: arXiv
Year: 2006
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Given a $n$-dimensional Riemannian manifold of arbitrary signature, we illustrate an algebraic method for constructing the coordinate webs separating the geodesic Hamilton-Jacobi equation by means of the eigenvalues of $m \leq n$ Killing two-tensors. Moreover, from the analysis of the eigenvalues, information about the possible symmetries of the web foliations arises. Three cases are examined: the orthogonal separation, the general separation, including non-orthogonal and isotropic coordinates, and the conformal separation, where Killing tensors are replaced by conformal Killing tensors. The method is illustrated by several examples and an application to the L-systems is provided.
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/
A novel linker-immunodominant site (LIS) vaccine targeting the SARS-CoV-2 spike protein protects against severe COVID-19 in Syrian hamsters
Creators: name: Zhang, Bao-Zhong
name: Wang, Xiaolei
name: Yuan, Shuofeng
name: Li, Wenjun
name: Dou, Ying
name: Poon, Vincent Kwok-Man
name: Chan, Chris Chung-Sing
name: Cai, Jian-Piao
name: Chik, Kenn KaHeng
name: Tang, Kaiming
name: Chan, Chris Chun-Yiu
name: Hu, Ye-Fan
name: Hu, Jing-Chu
name: Badea, Smaranda Ruxandra
name: Gong, Hua-Rui
name: Lin, Xuansheng
name: Chu, Hin
name: Li, Xuechen
name: To, Kelvin Kai-Wang
name: Liu, Li
name: Chen, Zhiwei
name: Hung, Ivan Fan-Ngai
name: Yuen, Kwok Yung
name: Chan, Jasper Fuk-Woo
name: Huang, Jian-Dong
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: The Coronavirus Disease 2019 (COVID-19) pandemic is unlikely to abate until sufficient herd immunity is built up by either natural infection or vaccination. We previously identified ten linear immunodominant sites on the SARS-CoV-2 spike protein of which four are located within the RBD. Therefore, we designed two linkerimmunodominant site (LIS) vaccine candidates which are composed of four immunodominant sites within the RBD (RBD-ID) or all the 10 immunodominant sites within the whole spike (S-ID). They were administered by subcutaneous injection and were tested for immunogenicity and in vivo protective efficacy in a hamster model for COVID-19. We showed that the S-ID vaccine induced significantly better neutralizing antibody response than RBD-ID and alum control. As expected, hamsters vaccinated by S-ID had significantly less body weight loss, lung viral load, and histopathological changes of pneumonia. The S-ID has the potential to be an effective vaccine for protection against COVID-19.
Scene semantics from long-term observation of people
Creators: name: Delaitre, Vincent
name: Fouhey, David F.
name: Laptev, Ivan
name: Sivic, Josef
name: Abhinav Gupta
name: Efros, Alexei
Publisher: name: Carnegie Mellon University
Year: 2012
Subjects: subject: 80101 Adaptive Agents and Intelligent Robotics
subject: FOS: Computer and information sciences

description: Our everyday objects support various tasks and can be used by people for dirent purposes. While object classification is a widely studied topic in computer vision, recognition of object function, i.e., what people can do with an object and how they do it, is rarely addressed. In this paper we construct a functional object description with the aim to recognize objects by the way people interact with them. We describe scene objects (sofas, tables, chairs) by associated human poses and object appearance. Our model is learned discriminatively from automatically estimated body poses in many realistic scenes. In particular, we make use of time-lapse videos from YouTube providing a rich source of common human-object interactions and minimizing the ert of manual object annotation. We show how the models learned from human observations significantly improve object recognition and enable prediction of characteristic human poses in new scenes. Results are shown on a dataset of more than 400,000 frames obtained from 146 time-lapse videos of challenging and realistic indoor scenes.
title: 03_0189
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
In vitro production and exudation of 20-hydroxymaytenin from Gymnosporia heterophylla (Eckl. and Zeyh.) Loes. cell culture
Creators: name: Pitakbut, Thanet
name: Spiteller, Michael
name: Kayser, Oliver
Publisher: name: TU Dortmund
Year: 2021
Subjects: subject: Plant cell culture
subject: Plant exudate
subject: 20-hydroxymaytenin
subject: Gymnosporia heterophylla
subject: 660
subject: Calluskultur
subject: Exsudat
subject: Triterpenoide
subject: Pflanzeninhaltsstoff

description: The metabolite 20-Hydroxymaytenin (20-HM) is a member of the quinone-methide pentacyclic triterpenoids (QMTs) group. This metabolite group is present only in Celastraceae plants, and it has shown various biological activities from antioxidant to anticancer properties. However, most QMTs metabolites including 20-HM cannot be synthesized in a laboratory. Therefore, we optimized a plant tissue culture protocol and examined the potential of Gymnosporia heterophylla (synonym. Maytenus heterophylla) to produce 20-HM in an in vitro experiment. For the first time, we reported the optimum callus induction medium with a high percentage success rate of 82% from the combination of 1 mg/L indole-3-butyric acid and 5 mg/L naphthalene acetic acid. Later, our cell suspension culture cultivated in the optimum medium provided approximately 0.35 mg/g fresh weight of 20-HM. This concentration is roughly 87.5 times higher than a concentration of 20-HM presenting in Elaeodendron croceum (Celastraceae) leaves. In addition, we also found that 20-HM presented in a cultivation medium, suggesting that G. heterophylla cells secreted 20-HM as an exudate in our experiment. Noticeably, 20-HM was missing when Penicillium cf. olsonii occurred in the medium. These findings hint at an antifungal property of 20-HM.
description: Plants;10(8)
Magnetic ionization fronts II: Jump conditions for oblique magnetization
Creators: name: Williams, R. J. R.
name: Dyson, J. E.
name: Hartquist, T. W.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the jump conditions for ionization fronts with oblique magnetic fields. The standard nomenclature of R- and D-type fronts can still be applied, but in the case of oblique magnetization there are fronts of each type about each of the fast- and slow-mode speeds. As an ionization front slows, it will drive first a fast- and then a slow-mode shock into the surrounding medium. Even for rather weak upstream magnetic fields, the effect of magnetization on ionization front evolution can be important. [Includes numerical MHD models and an application to observations of S106.]
description: 9 pages, 10 figures, Latex, to be published in MNRAS
Le implicazioni giuridiche della ricerca genetica. Spunti dal Genetic Information Non discrimination Act
Creators: name: Spiller, Elisa
Publisher: name: University of Trento
Year: 2016
Subjects: Genetic Research Legislation; Genetic Discrimination; Genetic Privacy; U.S. Genetic Information Nondiscrimination Act of 2008; Comparative Public Law

description: In the last two decades genetic research achieved very significant results. In 2015, only few years since the completion of the Human Genome Project, scientists launched new experimental studies to genetically modify the DNA sequence of human embryos. These scientific advances have raised several ethical concerns, promoting issues that involve both natural and human science– including legal studies. Law and ethics frequently have to address the issues originated from these innovations and finding a common toolset often proves to be an arduous task. Genetics has a transnational dimension, experiences a continuous and rapid evolution and spreads new unfamiliar concepts, which ask to be integrated in social and legal culture. Analyzing the path that conducted the US Congress to approve the Genetic Information Nondiscrimination Act of 2008, this essay assesses the most common problems in genetic information management in the legal field. In recent studies, the first issue concerns the qualification of genetic data, considering their legal value to identify possible suitable models of protection. With regard to this, U.S. genetic legislation originally presented two different complementary options — antidiscrimination and privacy laws. With the clear intent to foster genetic research and scientific investments, the Federal legislator decided to endorse the protection against discriminations — the most evident effects of the distort use of genetic information — moving privacy to the background. Nevertheless, the limited scope of the Act — health insurance and employment — and the rapid diffusion of genetic tests for extremely varied purposes stressed the loopholes of GINA, suggesting the need to address some issues through the different legal lens of data protection. For such reasons, the Congress, in 2016, introduced a new bill to handle the problem, considering, in particular, privacy in genetic research. Covering the misuses of genetic information safeguarding a lawful employment of data seems a possible way to encourage an aware usage of genetic tests and scientific techniques, taking advantage of their silver linings without harming fundamental rights.
description: BioLaw Journal - Rivista di BioDiritto, N° 2 (2016)
Fermionic one-particle states in curved spacetimes
Creators: name: Loran, Farhang
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We show that a notion of one-particle state and the corresponding vacuum state exists in general curved backgrounds for spin $\frac{1}{2}$ fields. A curved spacetime can be equipped with a coordinate system in which the metric component $g_{--}=0$. We separate the component of the left-handed massless Dirac field which is annihilated by the null vector $\partial_-$ and compute the corresponding Feynman propagator. We find that the propagating modes are localized on two dimensional subspaces and the Feynman propagator is similar to the Feynman propagator of chiral fermions in two dimensional Minkowski spacetime. Therefore, it can be interpreted in terms of one-particle states and the corresponding vacuum state similarly to the second quantization in Minkowski spacetime.
description: 36 pages, substantially revised, to appear in JHEP
An application of the Heckman Selection Model to the Analysis of GIS benefits
Creators: name: Dai, Chunyun
Publisher: name: My University
Year: 2017

description: Previous studies have identified several characteristics that likely affect the incidence of senior poverty. However, no research addresses the relationship between personal characteristics and the amount of GIS benefits received, which would help to predict directly the demands placed by the senior population on the GIS. In this paper, I expand on the existing literature by using the Heckman two-step selection model to estimate the probability that seniors receive GIS benefits as well as the amount of GIS benefits received, given the senior’s characteristics. The results of the Heckman two-step estimation procedure indicate that selection bias exists. The results also show that seniors who participate in the job market, are highly educated, live in Ontario, are non- immigrants, and speak English have lower probabilities of receiving GIS benefits. In contrast, as age increases, seniors are increasingly likely to receive GIS benefits regardless of the type of household living arrangement, especially seniors who are lone parents, are living with non- relatives only, or are living alone. The marginal effects of gender for the 65 to 69 and 70 to 74 age groups show that men are more likely to receive GIS benefits. This result contradicts those of other researchers. Furthermore, a senior who speaks French only has a higher probability of receiving GIS benefits as age increases. The results of the second-stage equation modelling the amount of annual GIS benefits received fill an existing gap in previous research. The estimates imply that the average predicted annual amounts of GIS annual benefits, conditional on receipt of benefits, are $5,780, $6,011, $4,590, $4,586 and $5,167 for the five age groups considered, respectively. Individuals who had been employed at some time in the past or who have a higher level of education receive on average smaller amounts of GIS benefits, but these effects diminish as age increases. Immigrant status and the type of household living arrangement also affect the amount of benefit received. Seniors who are lone parents, living alone, or immigrants receive more GIS benefits per year, and the impacts of household living arrangements are fairly large. The marginal effects of gender for the 65 to 69 and 70 to 74 age groups show that on average, men receive more GIS benefits than women.
Small x resummations confronted with F_2(x,Q^2) data
Creators: name: Bojak, I.
name: Ernst, M.
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It has been observed recently that a consistent LO BFKL gluon evolution leads to a steep growth of F_2(x,Q^2) for x -> 0 almost independently of Q^2. We show that current data from the DESY HERA collider are precise enough to finally rule out a pure BFKL behaviour in the accessible small x region. Several attempts have been made by other groups to treat the BFKL type small x resummations instead as additions to the conventional anomalous dimensions of the successful renormalization group ``Altarelli-Parisi'' equations. We demonstrate that all presently available F_2 data, in particular at lower values of Q^2, can not be described using the presently known NLO (two-loop consistent) small x resummations. Finally we comment on the common reason for the failure of these BFKL inspired methods which result, in general, in too steep x-dependencies as x -> 0.
description: Revised, to be published in Phys. Lett. B., 18 pages, LaTeX2e, 3 figures, uses amssymb and epsfig styles
Il diritto e l’autismo: osservazioni alla legge n. 134/2015
Creators: name: Tempesta, Michele
Publisher: name: University of Trento
Year: 2016
Subjects: Autistic Spectrum Disorder; dignity; legal definition; early diagnosis; school inclusion

description: The autism spectrum disorder is very complex and varied; for this reason, it can be stated that each autism is different from theother. Legislation therefore, must protect concrete demands as well as constitutional rights, accepting the challenge of its complexity. Consequently, legislators, judges and the public administration play a crucial role, in particular in terms of inclusion in schools. Recent legislative measures have addressed some of the most problematic aspects, however additions and clarifications are required.
description: BioLaw Journal - Rivista di BioDiritto, N° 2 (2016)
Scaling Teamwork to Very Large Teams
Creators: name: Scerri, Paul
name: Xu, Yang
name: Liao, Elizabeth
name: Lai, Justin
name: Sycara, Katia
Publisher: name: Carnegie Mellon University
Year: 2004
Subjects: subject: 80101 Adaptive Agents and Intelligent Robotics
subject: FOS: Computer and information sciences

description: As a paradigm for coordinating cooperative agents in dynamic environments, teamwork has been shown to be capable of leading to flexible and robust behavior. How- ever, when we apply teamwork to the problem of building teams with hundreds of members, fundamental limitations become apparent. We have developed a model of teamwork that addresses the limitations of existing models as they apply to very large teams. A central idea of the model is to organize team members into dynamically evolving subteams. Additionally, we present a novel approach to sharing information, leveraging the proper- ties of small worlds networks. The algorithm provides targeted, efficient information delivery. We have developed domain independent software proxies with which we demonstrate teams at least an order of magnitude bigger than previously published. Moreover, the same proxies proved effective for teamwork in two distinct domains, illustrating the generality of the approach.
Towards the cold atom analog false vacuum
Creators: name: Braden, Jonathan
name: Johnson, Matthew C.
name: Peiris, Hiranya V.
name: Weinfurtner, Silke
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Quantum Gases (cond-mat.quant-gas)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Analog condensed matter systems present an exciting opportunity to simulate early Universe models in table-top experiments. We consider a recent proposal for an analog condensed matter experiment to simulate the relativistic quantum decay of the false vacuum. In the proposed experiment, two ultra-cold condensates are coupled via a time-varying radio-frequency field. The relative phase of the two condensates in this system is approximately described by a relativistic scalar field with a potential possessing a series of false and true vacuum local minima. If the system is set up in a false vacuum, it would then decay to a true vacuum via quantum mechanical tunnelling. Should such an experiment be realized, it would be possible to answer a number of open questions regarding non-perturbative phenomena in quantum field theory and early Universe cosmology. In this paper, we illustrate a possible obstruction: the time-varying coupling that is invoked to create a false vacuum for the long-wavelength modes of the condensate leads to a destabilization of shorter wavelength modes within the system via parametric resonance. We focus on an idealized setup in which the two condensates have identical properties and identical background densities. Describing the system by the coupled Gross-Pitaevskii equations (GPE), we use the machinery of Floquet theory to perform a linear stability analysis, calculating the wavenumber associated with the first instability band for a variety of experimental parameters. However, we demonstrate that, by tuning the frequency of the time-varying coupling, it may be possible to push the first instability band outside the validity of the GPE, where dissipative effects are expected to damp any instabilities. This provides a viable range of experimental parameters to perform analog experiments of false vacuum decay.
description: v1: 30 pages + appendices, 9 figures, to be submitted to JHEP; v2: Matches published version. Minor revisions, results unchanged
Critique of a Community-Based Population Health Intervention in a First Nations Community: Public Health and Medical Anthropology Perspectives
Creators: name: Khan, Selim M.
Publisher: name: My University
Year: 2016
Subjects: health determinants
population health intervention
public health
medical anthropology
diabetes prevention

description: Launched as a community-based partnership endeavour, the Sandy Lake Health and Diabetes Project (SLHDP) aimed to prevent diabetes in a First Nations community (FNC) in Toronto. With active engagement of the key stakeholders, SLHDP conducted a series of studies that explored public health needs, priorities, and the contexts. These led to the adoption of a variety of culturally appropriate health interventions, addressing several health determinants such as health education, physical environments, nutrition, personal health practices, health services, and FNC culture. SLHDP built reciprocal capacity for both the community stakeholders and academic partners, thus evolved as a model of population health intervention. The school components are being scaled-up in other parts of FNCs in Canada. This paper presents a critique from public health and medical anthropology perspectives and draws evidence-based recommendations on how such programs can do better.
The PSCz Catalogue
Creators: name: Saunders, W.
name: Sutherland, W. J.
name: Maddox, S. J.
name: Keeble, O.
name: Oliver, S. J.
name: Rowan-Robinson, M.
name: McMahon, R. G.
name: Efstathiou, G. P.
name: Tadros, H.
name: White, S. D. M.
name: Frenk, C. S.
name: Carraminana, A.
name: Hawkins, M. R. S.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the catalogue, mask, redshift data and selection function for the PSCz survey of 15411 IRAS galaxies across 84% of the sky. Most of the IRAS data is taken from the Point Source Catalog, but this has been supplemented and corrected in various ways to improve the completeness and uniformity. We quantify the known imperfections in the catalogue, and we assess the overall uniformity, completeness and data quality. We find that overall the catalogue is complete and uniform to within a few percent at high latitudes and 10% at low latitudes. Ancillary information, access details, guidelines and caveats for using the catalogue are given.
description: 10 pages, submitted to MNRAS Oct 1999, accepted 8 March 2000. Includes details for data access
Scale Selection for the Analysis of Point-Sampled Curves: Extended Report
Creators: name: Ranijith  Unnikrishnan
name: Jean-Francois  Lalonde
name: Vandapel, Nicolas
name: Hebert, Martial
Publisher: name: Carnegie Mellon University
Year: 2006
Subjects: subject: 80101 Adaptive Agents and Intelligent Robotics
subject: FOS: Computer and information sciences

description: An important task in the analysis and reconstruction of curvilinear structures from unorganized 3-D point samples is the estimation of tangent information at each data point. Its main challenges are in (1) the selection of an appropriate scale of analysis to accommodate noise, density variation and sparsity in the data, and in (2) the formulation of a model and associated objective function that correctly expresses their effects. We pose this problem as one of estimating the neighborhood size for which the principal eigenvector of the data scatter matrix is best aligned with the true tangent of the curve, in a probabilistic sense. We analyze the perturbation on the direction of the eigenvector due to finite samples and noise using the expected statistics of the scatter matrix estimators, and employ a simple iterative procedure to choose the optimal neighborhood size. Experiments on synthetic and real data validate the behavior predicted by the model, and show competitive performance and improved stability over leading polynomial-fitting alternatives that require a preset scale.
Autonomia come integrità: una riflessione sulle direttive anticipate di trattamento
Creators: name: Mancini, Elena
Publisher: name: University of Trento
Year: 2016
Subjects: Individual freedom (autonomia individuale); Living will (testamento biolo-gico); Persistent Vegetative state (stato vegetativo persistente); Minimal Conscious State (stati minimali di coscienza); Life-sustainig treatment (idratazione e alimentazione artif

description: The aim of this article is to inquire about the possibilities and the limits of-fered by living will and explains the debate on which the Italian legislative branch is still examining and discussing. A special attention is given to the meaning of artificial nutrition and hydration. A regard is given to the capacity that the brainimaging technique has to realize a more exact prognosis of the cerebral recovery possibilities in order to reduce the diagnostic mistakes and the cases of life- sustaining treatment interruptions of people only apparently lacking of mental capacity. With regard to the ethical decisions to put an end to life, the author proposes to revise the traditional ethical debate about the difference between killing or leaving to die by natural death, in the light of the new moral choices that the actual new acquisition techniques of fMRI made possible. Finally, it has been proposed to support the individual freedom in the choice to inter-rupt or not life- sustaining treatments, the Ronald Dworkin concept of individual freedom. This conception has been introduced as a central and unavoidable element of the individual identity and as an unavoidable condition for a human self-respect.
description: BioLaw Journal - Rivista di BioDiritto, N° 2 (2016)
$O(α_s^2)$ Contributions to the asymmetric fragmentation function in $e^+e^-$ annihilation
Creators: name: Rijken, P. J.
name: van Neerven, W. L.
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The order α_s^2 contributions to the coefficient functions corresponding to the asymmetric fragmentation function $F_A(x,Q^2)$ in $e^+e^-$ annihilation are calculated. From this calculation we infer that the order $(α_s/4π)^2$ correction to the flavour asymmetry sum rule is non vanishing and amounts to $-12β_0C_Fζ(3)$. We also study the effect of the higher order QCD corrections on $F_A(x,Q^2)$ and compare them with the OPAL data. The latter put a strong constraint on the valence part of the fragmentation densities $D_q^H(x,μ^2)$.
description: 15 pages, latex2e, uses mcite, amsfonts. PostScript version also available at http://rulgm4.leidenuniv.nl/preprints/asymmfrag.ps
Internal Universes in Models of Homotopy Type Theory
Creators: name: Licata, Daniel R.
name: Orton, Ian
name: Pitts, Andrew M.
name: Spitters, Bas
Publisher: name: arXiv
Year: 2018
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: F.4.1; F.3.2

description: We begin by recalling the essentially global character of universes in various models of homotopy type theory, which prevents a straightforward axiomatization of their properties using the internal language of the presheaf toposes from which these model are constructed. We get around this problem by extending the internal language with a modal operator for expressing properties of global elements. In this setting we show how to construct a universe that classifies the Cohen-Coquand-Huber-Mörtberg (CCHM) notion of fibration from their cubical sets model, starting from the assumption that the interval is tiny - a property that the interval in cubical sets does indeed have. This leads to an elementary axiomatization of that and related models of homotopy type theory within what we call crisp type theory.
description: In H. Kirchner (ed), Proceedings of the 3rd International Conference on Formal Structures for Computation and Deduction (FSCD 2018), Leibniz International Proceedings in Informatics (LIPIcs), Vol. 108, pp. 22:1-22:17, 2018
Evolution of the cosmological density distribution function
Creators: name: Taylor, Andrew
name: Watts, Peter
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a new calculation for the evolution of the 1-point Probability Distribution Function (PDF) of the cosmological density field based on an exact statistical treatment. Using the Chapman-Kolmogorov equation and second-order Eulerian perturbation theory we propagate the initial density distribution into the nonlinear regime. Our calculations yield the moment generating function, allowing a straightforward derivation of the skewness of the PDF to second order. We find a new dependency on the initial perturbation spectrum. We compare our results with other approximations to the 1-pt PDF, and with N-body simulations. We find that our distribution accurately models the evolution of the 1-pt PDF of dark matter.
description: 7 pages, 7 figures, accepted for publication in MNRAS
Scale Selection for Classification of Point-sampled 3-D Surfaces
Creators: name: Jean-Francois  Lalonde
name: Unnikrishnan, Ranjith
name: Vandapel, Nicolas
name: Hebert, Martial
Publisher: name: Carnegie Mellon University
Year: 2005
Subjects: subject: 80101 Adaptive Agents and Intelligent Robotics
subject: FOS: Computer and information sciences

description: Three-dimensional ladar data are commonly used to perform scene understanding for outdoor mobile robots, specifically in natural terrain. One effective method is to classify points using features based on local point cloud distribution into surfaces, linear structures or clutter volumes. But the local features are computed using 3D points within a support-volume. Local and global point density variations and the presence of multiple manifolds make the problem of selecting the size of this support volume, or scale, challenging. In this paper, we adopt an approach inspired by recent developments in computational geometry (Mitra et al., 2005) and investigate the problem of automatic data-driven scale selection to improve point cloud classification. The approach is validated with results using data from different sensors in various environments classified into different terrain types (vegetation, solid surface and linear structure).
A pre and post intervention study to reduce unnecessary urinary catheter use on general internal medicine wards of a large academic health science center
Creators: name: Wooller, Krista R.
name: Backman, Chantal
name: Gupta, Shipa
name: Jennings, Alison
name: Hasimja-Saraqini, Delvina
name: Forster, Alan J.
Publisher: name: My University
Year: 2018
Subjects: Patient safety
Quality improvement
Urinary catheter
Aged
Canada
Catheter-Related Infections
Cross Infection
Female
Humans
Male
Patient Safety
Quality Improvement
Unnecessary Procedures
Urinary Catheterization
Urinary Tract Infections
Academic Medical Centers
Internal Medicine
Patients' Rooms

description: Urinary catheters are a common medical intervention, yet they can also be associated with harmful adverse events such as infection, urinary tract trauma, delirium and patient discomfort. The purpose of this study was to describe the use of the SafetyLEAP program to drive improvement efforts, and specifically to reduce the use of urinary catheters on general internal medicine wards.
Aspectos Medulares de la Regulación de las Técnicas de Reproducción Humana Asistida en el Derecho Argentino
Creators: name: Rodríguez Iturburu, Mariana
Publisher: name: University of Trento
Year: 2016
Subjects: Assisted Reproduction Techniques; Argentinian Law; Family Law; Human Rights

description: In Argentina, after more than 30 years of legislative silence, human assisted reproduction techniques have finally found a legal framework in Argentina. The recent legislative progress in this field represents a significant outcome for individuals who have access to these procedures. The aim of this paper is to highlight the most important legal changes that have been introduced, their reasons and their constitu-tional basis. It also points out the tensions that led to the acknowledgement of assisted reproduction techniques as a fundamental means for the pluralistic evolution of family law.
description: BioLaw Journal - Rivista di BioDiritto, N° 2 (2016)
Multiple stable states in microbial communities explained by the stable marriage problem
Creators: name: Goyal, Akshit
name: Dubinkina, Veronika
name: Maslov, Sergei
Publisher: name: arXiv
Year: 2017
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Computer Science and Game Theory (cs.GT)
subject: Biological Physics (physics.bio-ph)
subject: Molecular Networks (q-bio.MN)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Experimental studies of microbial communities routinely reveal that they have multiple stable states. While each of these states is generally resilient, certain perturbations such as antibiotics, probiotics and diet shifts, result in transitions to other states. Can we reliably both predict such stable states as well as direct and control transitions between them? Here we present a new conceptual model inspired by the stable marriage problem in game theory and economics in which microbial communities naturally exhibit multiple stable states, each state with a different species' abundance profile. Our model's core ingredient is that microbes utilize nutrients one at a time while competing with each other. Using only two ranked tables, one with microbes' nutrient preferences and one with their competitive abilities, we can determine all possible stable states as well as predict inter-state transitions, triggered by the removal or addition of a specific nutrient or microbe. Further, using an example of 7 Bacteroides species common to the human gut utilizing 9 polysaccharides, we predict that mutual complementarity in nutrient preferences enables these species to coexist at high abundances.
description: 24 pages (including SI), 4 figures (+3 supplementary figures)
Aperçu des pratiques de gestion des données de recherche à l’Université d’Ottawa
Creators: name: Cheung, Melissa
name: Labelle, Patrick
name: McEwan, Jessica
name: Sahadath, Catie
name: Sikora, Lindsey
Publisher: name: My University
Year: 2018
Subjects: gestion des données de recherche

description: Cette conférence présente les résultats d'un sondage sur les pratiques et besoins liés à la gestion des données de recherche. Cette enquête s'inscrit dans le cadre d'un effort pancanadien cherchant à mieux comprendre le paysage actuel.
Deeply Virtual Compton Scattering
Creators: name: Ji, Xiangdong
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study in QCD the physics of deeply-virtual Compton scattering (DVCS)---the virtual Compton process in the large s and small t kinematic region. We show that DVCS can probe a new type of off-forward parton distributions. We derive an Altarelli-Parisi type of evolution equations for these distributions. We also derive their sum rules in terms of nucleon form-factors of the twist-two quark and gluon operators. In particular, we find that the second sum rule is related to fractions of the nucleon spin carried separately by quarks and gluons. We estimate the cross section for DVCS and compare it with the accompanying Bethe-Heitler process at CEBAF and HERMES kinematics.
description: 20 pages, 2 figures, replaced with the version to appear in Phys. Rev. D
Nutrizione artificiale e dichiarazioni anticipate di trattamento. Per l’elaborazione di un glossario comune e condiviso
Creators: name: Mazzon, Davide
name: Busatta, Lucia
Publisher: name: University of Trento
Year: 2016
Subjects: End of life; living wills; parliamentary debate; artificial nutrition and hydration; refusal of medical treatments

description: The paper aims at giving a contribution for the elaboration of a common lexicon in the field of end of life issues. In particular, the beginning of a new phase for the political debate in Italy (with the introduction of some new legislative proposals on informed consent, end of life issues and living wills) requires a reflection upon some concepts of central importance for the debate. Among them, the meaning of artificial nutrition – as distinct from feeding – and its qualification as a medical treatment is essential for the construction of a conscious political discussion, in which the legal as well the medico-scientific dimension could obtain due consideration.
description: BioLaw Journal - Rivista di BioDiritto, N° 2 (2016)
Sunyaev-Zeldovich effect from hydrodynamical simulations: maps and low order statistics
Creators: name: Seljak, Uros
name: Burwell, Juan
name: Pen, Ue-Li
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We use moving mesh hydrodynamical simulations to make maps of Sunyaev-Zeldovich effect. We present these maps for several cosmological models and explore their lowest moments. We find that the first moment, the mean Compton $y$ parameter, is typically between $1-2\times 10^{-6}$ for cluster abundance normalized models, the lower value corresponding to the high density models, and scales as $σ_8^{3-4}$. Rms fluctuations at 10' scale have an amplitude $ ΔT/T \sim 1-3 \times 10^{-6}$ in the Rayleigh-Jeans regime. The amplitude of the power spectrum strongly depends on the power spectrum normalization and scales as $σ_8^{6-9}$. On smaller scales ($l>1000$) the spectrum is dominated by halos below $10^{13}M_{\sun}$ and so is sensitive to the thermal history of galactic halo gas. On larger scales ($l<1000$) the power spectrum is less sensitive to nongravitational energy injection, but becomes very noisy, with large field to field variations in the power spectrum caused by rare bright sources in the maps, which dominate in the spectrum over the large scale structure correlations. Cross-correlation power spectrum with weak lensing or projected galaxy distribution is significant and the cross-correlation coefficient is around 0.5 over a wide range of scales. Comparison with Press-Schechter predictions gives very good agreement for all the statistics, indicating that there is no significant contribution to SZ from non-virialized structures. The one point distribution function shows clear deviations from gaussianity and can be well-approximated as log-normal on small scales.
description: 12 pages, 6 figures + 3 color plates, submitted to PRD; movies and additional information available at http://feynman.princeton.edu/~uros/sz.html
Testing the Hubble Law with the IRAS 1.2 Jy Redshift Survey
Creators: name: Koranyi, Daniel
name: Strauss, Michael A.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We test and reject the claim of Segal et al. (1993) that the correlation of redshifts and flux densities in a complete sample of IRAS galaxies favors a quadratic redshift-distance relation over the linear Hubble law. This is done, in effect, by treating the entire galaxy luminosity function as derived from the 60 micron 1.2 Jy IRAS redshift survey of Fisher et al. (1995) as a distance indicator; equivalently, we compare the flux density distribution of galaxies as a function of redshift with predictions under different redshift-distance cosmologies, under the assumption of a universal luminosity function. This method does not assume a uniform distribution of galaxies in space. We find that this test has rather weak discriminatory power, as argued by Petrosian (1993), and the differences between models are not as stark as one might expect a priori. Even so, we find that the Hubble law is indeed more strongly supported by the analysis than is the quadratic redshift-distance relation. We identify a bias in the the Segal et al. determination of the luminosity function, which could lead one to mistakenly favor the quadratic redshift-distance law. We also present several complementary analyses of the density field of the sample; the galaxy density field is found to be close to homogeneous on large scales if the Hubble law is assumed, while this is not the case with the quadratic redshift-distance relation.
description: 27 pages Latex (w/figures), ApJ, in press. Uses AAS macros, postscript also available at http://www.astro.princeton.edu/~library/preprints/pop682.ps.gz
Predictive Leptogenesis from Minimal Lepton Flavour Violation
Creators: name: Merlo, L.
name: Rosauro-Alcaraz, S.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A predictive Leptogenesis scenario is presented based on the Minimal Lepton Flavour Violation symmetry. In the realisation with three right-handed neutrinos transforming under the same flavour symmetry of the lepton electroweak doublets, lepton masses and PMNS mixing parameters can be described according to the current data, including a large Dirac CP phase. The observed matter-antimatter asymmetry of the Universe can be achieved through Leptogenesis, with the CP asymmetry parameter $\varepsilon$ described in terms of only lepton masses, mixings and phases, plus two real parameters of the low-energy effective description. This is in contrast with the large majority of models present in the literature, where $\varepsilon$ depends on several high-energy parameters, preventing a direct connection between low-energy observables and the baryon to photon ratio today. Recovering the correct amount of baryon asymmetry in the Universe constrains the Majorana phases of the PMNS matrix within specific ranges of values: clear predictions for the neutrinoless double beta decay emerge, representing a potential smoking gun for this framework.
description: 17 pages, 8 figures. V2 matches the version published in JHEP
Le problematiche applicative della legge n. 194 del 1978 relative al diritto di obiezione di coscienza ancora a giudizio (Prime osservazioni alla decisione del Comitato Europeo dei Diritti Sociali nel caso CGIL contro Italia)
Creators: name: Liberali, Benedetta
Publisher: name: University of Trento
Year: 2016
Subjects: health; work; conscientious objection; voluntary termination of pregnancy; European committee of social rights

description: This essay aims to analize the decision on the merit of collective complaint no. 91 of 2013 (CGIL v. Italy) of the European Committee of Social Rights and to take into account not only the actual violation of some articles of the European Social Charter, the consequences for the Italian legal system and the identification of some possible solutions and future prospects in the matter of conscientious objection in the voluntary termination of pregnancy, but also some specific aspects of the collective complaints’ procedure before the European Committee of Social Rights. Furthermore, the essay dwells on the innovative interpretation of the principle of non discrimination (art. E, European Social Charter), related to the right to health (art. 11, European Social Charter).
description: BioLaw Journal - Rivista di BioDiritto, N° 2 (2016)
Scalable and Robust Group Discovery on Large Transactional Data
Creators: name: Choi, Patrick Pakyan
name: Moore, Andrew W
name: Kubica, Jeremy
Publisher: name: Carnegie Mellon University
Year: 2005
Subjects: subject: 80101 Adaptive Agents and Intelligent Robotics
subject: FOS: Computer and information sciences

description: The need for time-critical analysis and understanding of the underlying group structure from transactional data has been growing in domains such as law enforcement and customs. Kubica et al. (2003) proposed k-groups, an algorithm based on probabilistic generative model for discovering underlying groups in data. Even though k-groups is reported to be signficantly faster than its predecessor GDA (Kubica et al., 2002), k-groups is too slow and memory-intensive for large data in practice. This paper presents XGDA, a framework for scalable and robust group discovery. Evaluation of the performances of XGDA and k-groups shows that XGDA can handle extremely large datasets in reasonable time and yields more robust solutions than k-groups.