cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Rate of Convergence Towards Semi-Relativistic Hartree Dynamics
Creators: name: Lee, Ji Oon
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 81V70, 82C10, 35Q55

description: We consider the semi-relativistic system of $N$ gravitating Bosons with gravitation constant $G$. The time evolution of the system is described by the relativistic dispersion law, and we assume the mean-field scaling of the interaction where $N \to \infty$ and $G \to 0$ while $GN = λ$ fixed. In the super-critical regime of large $λ$, we introduce the regularized interaction where the cutoff vanishes as $N \to \infty$. We show that the difference between the many-body semi-relativistic Schrödinger dynamics and the corresponding semi-relativistic Hartree dynamics is at most of order $N^{-1}$ for all $λ$, i.e., the result covers the sub-critical regime and the super-critical regime. The $N$ dependence of the bound is optimal.
description: 29 pages
The Relationship Between Separation Logic and Implicit Dynamic Frames
Creators: name: Parkinson, Matthew J.
name: Summers, Alexander J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Programming Languages (cs.PL)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: F.3.1

description: Separation logic is a concise method for specifying programs that manipulate dynamically allocated storage. Partially inspired by separation logic, Implicit Dynamic Frames has recently been proposed, aiming at first-order tool support. In this paper, we precisely connect the semantics of these two logics. We define a logic whose syntax subsumes both that of a standard separation logic, and that of implicit dynamic frames as sub-syntaxes. We define a total heap semantics for our logic, and, for the separation logic subsyntax, prove it equivalent the standard partial heaps model. In order to define a semantics which works uniformly for both subsyntaxes, we define the novel concept of a minimal state extension, which provides a different (but equivalent) definition of the semantics of separation logic implication and magic wand connectives, while also giving a suitable semantics for these connectives in implicit dynamic frames. We show that our resulting semantics agrees with the existing definition of weakest pre-condition semantics for the implicit dynamic frames fragment. Finally, we show that we can encode the separation logic fragment of our logic into the implicit dynamic frames fragment, preserving semantics. For the connectives typically supported by tools, this shows that separation logic can be faithfully encoded in a first-order automatic verification tool (Chalice).
Tantalum nitride superconducting single-photon detectors with low cut-off energy
Creators: name: Engel, Andreas
name: Aeschbacher, Adrian
name: Inderbitzin, Kevin
name: Schilling, Andreas
name: Il'in, Konstantin
name: Hofherr, Matthias
name: Siegel, Michael
name: Semenov, Alexei
name: Hübers, Heinz-Wilhelm
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Materials with a small superconducting energy gap are expected to favor a high detection efficiency of low-energy photons in superconducting nanowire single-photon detectors. We developed a TaN detector with smaller gap and lower density of states at the Fermi energy than in comparable NbN devices, while other relevant parameters remain essentially unchanged. The observed reduction of the minimum photon energy required for direct detection is in line with model predictions of $\approx1/3$ as compared to NbN.
description: 9 pages incl. 1 table and 2 figures; corrected typos in table 1
Observational constraints on finite scale factor singularities
Creators: name: Denkiewicz, Tomasz
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss the combined constraints on a Finite Scale Factor Singularity (FSF) universe evolution scenario, which come from the shift parameter R, baryon acoustic oscillations (BAO) A, and from the type Ia supernovae. We show that observations allow existence of such singularities in the 2x10^9 years, in future, at the 1σ CL, and that at the present moment of the cosmic evolution, one cannot differentiate between cosmological scenario which allow finite scale factor singularities and the standard dark energy models. We also show that there is an allowed value of m = 2/3 within 1σ CL, which corresponds to a dust-filled Einstein-de-Sitter universe limit of the early time evolution.
description: 6 pages, some misprints corrected
On the scattered field generated by a ball inhomogeneity of constant index
Creators: name: Capdeboscq, Yves
Publisher: name: arXiv
Year: 2011
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35J05, 33C10, 35B34

description: We consider the solution of a scalar Helmholtz equation where the potential (or index) takes two positive values, one inside a disk of radius $ε$ and another one outside. We derive sharp estimates of the size of the scattered field caused by this disk inhomogeneity, for any frequencies and any contrast. We also provide a broadband estimate, that is, a uniform bound for the scattered field for any contrast, and any frequencies outside of a set which tend to zero with $ε$.
description: 37 pages, 3 figures
Analysis of internal and external factors in establishing inter-and-trans-disciplinary training and research framework in Amhara Region, Ethiopia
Creators: name: 1Zerihun Nigussie*, 2Getachew Alemayehu, 3Sisay Yehuala, 4Girmachew Siraw And 5Yonas Worku
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2012

description: No abstract available for this resource
Hard analysis meets critical knots (Stationary points of the Moebius energy are smooth)
Creators: name: Blatt, Simon
name: Reiter, Philipp
name: Schikorra, Armin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 57M25, 46E35

description: We prove that if a curve parametrized by arc length is a stationary point of the Moebius energy introduced by Jun O'Hara, then it is smooth whenever the Moebius energy is finite. Our methods, interestingly, only rely on purely analytical arguments, entirely without using Moebius invariance. Furthermore, the techniques involved are not fundamentally restricted to one-dimensional domains, but are generalizable to arbitrary dimensions.
description: removed minor flaws, changed notation, smashier title
Oolina D' ORBIGNY 1839
Creators: name: Margerel, Jean-Pierre
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Chromista
Foraminifera
Nodosariata
Lagenida
Ellipsolagenidae
Oolina

description: Genre Oolina d’Orbigny, 1839
DESCRIPTION
Test piriforme à paroi calcaire ornée de côtes longitudinales; ouverture ronde à l’extrémité d’un col court; endoanulus.
description: Published as part of Margerel, Jean-Pierre, 2016, Étude critique des genres Favulina, Homalohedra, Oolina, Entosolenia et Pseudofavulina n. gen. du Pliocène et du Pléistocène inférieur de la France occidentale et du Sud de l'Angleterre, pp. 559-578 in Geodiversitas 38 (4) on page 566, DOI: 10.5252/g2016n4a6, http://zenodo.org/record/10081048
Complex impedance, responsivity and noise of transition-edge sensors: analytical solutions for two- and three-block thermal models
Creators: name: Maasilta, Ilari J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The responsivity and noise of a voltage-biased superconducting transition-edge sensor depends strongly on the details of its thermal model, and the simplest theory for TES response assumes a single heat capacity connected to the heat bath. Here, analytical results are derived and discussed for the complex impedance, the responsivity and the noise of a transition-edge sensor, when the thermal model is not simple but consists of either two or three connected heat capacities. The implications of the differences of the models are discussed, as well.
description: 33 p. 12 fig version 2, final, AIP Advances, in press (2012)
UNDERSTANDING FOOD INSECURITY: CAUSES, IMPACT AND SOLUTIONS
Creators: name: Dr. Sana Saima
name: Riya Bajaj
name: Sanjana K
name: Avika Gupta
name: Rithish S M
name: Sanjay Patel
Publisher: name: Zenodo
Year: 2025
Subjects: Food insecurity, economic factors, social impact, government policies

description: Food insecurity has been a global issue that has been affecting a large number of people across the globe. This study aims to determine the prevalence of food insecurity that disproportionately affects people and identify the demographics which are most affected, including age, their income levels, and the geographic location. We performed a survey for primary research which included 50 individuals, this research helped us analyze the social, economic, and environmental factors that are leading to food insecurity. Moreover, the effectiveness in reducing food insecurity was critically evaluated through current policies and reforms made for this issue. The findings showcase significant correlations between the affordability of individuals, government schemes in their community as well as the basic awareness about the existence of food insecurity in today’s society. This study suggests policies and best practices to improve food access and security.
Oolina falsoscalariformis Margerel, 2016, n. sp.
Creators: name: Margerel, Jean-Pierre
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Chromista
Foraminifera
Nodosariata
Lagenida
Ellipsolagenidae
Oolina
Oolina falsoscalariformis

description: Oolina falsoscalariformis n. sp.
(Figs 4 M-P;5 A-D)
HOLOTYPE. — Échantillon la Groussinière S15 24,00 m (référence 806 coll. JPM) (Fig. 5M, N).
PARATYPE. — Échantillon Brest-LRK2 2,60 m (référence 807 coll. JPM) (Fig. 5O, P).
 ÉTYMOLOGIE. — Du latin falso faussement scalariformis.
MATÉRIEL EXAMINÉ. — La Groussinière S15 24 m (référence 808 coll. JPM, 19 spécimens); Brest-LRK2 2,60 m (référence 809 coll. JPM, trois spécimens).
HORIZON TYPE. — Pliocène inférieur.
LOCALITÉ TYPE. — La Groussinière (Ille-et-Vilaine).
DIAGNOSE. — Test fusiforme à section circulaire à ornementation alvéolaire et pourvu d’un endoanulus à la base du tube oral.
DIMENSIONS. — L = 0,53 mm; diam. = 0,26 mm.
DISTRIBUTION. — Sables argileux de la Groussinière et argiles sableuses du Relecq-Kerhuon.
DESCRIPTION
Test ovoïde allongé à section circulaire, orné de séries longitudinales d’alvéoles en arceau finement perforées délimitées par des côtes (17) plus ou moins épaisses, pourvu dans sa partie orale d’un tube très court reposant sur une base conique et à partie proximale tronquée munie d’une grosse épine courte; paroi calcaire épaisse à structure radiale; petite ouverture ronde; endoanulus orné de granules sphériques.
REMARQUE
 Cette espèce a été placée dans ce genre en raison de la présence d’un endoanulus et de côtes bien marquées mais la présence d’une ornementationalvéolairela rapproche de Pseudofavulina scalariformis (Williamson, 1848), n. comb. qui est pourvue d’un endosolen.
description: Published as part of Margerel, Jean-Pierre, 2016, Étude critique des genres Favulina, Homalohedra, Oolina, Entosolenia et Pseudofavulina n. gen. du Pliocène et du Pléistocène inférieur de la France occidentale et du Sud de l'Angleterre, pp. 559-578 in Geodiversitas 38 (4) on page 568, DOI: 10.5252/g2016n4a6, http://zenodo.org/record/10081048
Equivariant cohomology, syzygies and orbit structure
Creators: name: Allday, Christopher
name: Franz, Matthias
name: Puppe, Volker
Publisher: name: arXiv
Year: 2011
Subjects: subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 55N91 (Primary) 13D02, 57P10 (Secondary)

description: Let X be a "nice" space with an action of a torus T. We consider the Atiyah-Bredon sequence of equivariant cohomology modules arising from the filtration of X by orbit dimension. We show that a front piece of this sequence is exact if and only if the H^*(BT)-module H_T^*(X) is a certain syzygy. Moreover, we express the cohomology of that sequence as an Ext module involving a suitably defined equivariant homology of X. One consequence is that the GKM method for computing equivariant cohomology applies to a Poincare duality space if and only if the equivariant Poincare pairing is perfect.
description: 23 pages. The former Section 6 has been substantially expanded and is now a separate paper, see arXiv:1303.1146. Several minor changes
title: Interfacial Polymerization at the Alkane/Ionic Liquid Interface
Creators: name: Liu, Chang
name: Yang, Jing
name: Guo, Bian‐Bian
name: Agarwal, Seema
name: Greiner, Andreas
name: Xu, Zhi‐Kang
Publisher: name: University of Bayreuth
Year: 2021
Subjects: subject: interfacial polimerization
subject: ionic liquids
subject: membranes
subject: nanofilms
subject: polyamides
subject: 540

description: Polymerization at the liquid–liquid interface has attracted much attention for synthesizing ultrathin polymer films for molecular sieving. However, it remains a major challenge to conduct this process outside the alkane–water interface since it not only suffers water-caused side reactions but also is limited to water-soluble monomers. Here, we report the interfacial polymerization at the alkane/ionic liquid interface (IP@AILI) where the ionic liquid acts as the universal solvent for diversified amines to synthesize task-specific polyamide nanofilms. We propose that IP@AILI occurs when acyl chloride diffuses from the alkane into the ionic liquid instead of being triggered by the diffusion of amines as in the conventional alkane–water system, which is demonstrated by thermodynamic partitioning and kinetic monitoring. The prepared polyamide nanofilms with precisely adjustable pore sizes display unprecedented permeability and selectivity in various separation processes.
Search on a Fractal Lattice using a Quantum Random Walk
Creators: name: Patel, Apoorva
name: Raghunathan, K. S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The spatial search problem on regular lattice structures in integer number of dimensions $d\geq2$ has been studied extensively, using both coined and coinless quantum walks. The relativistic Dirac operator has been a crucial ingredient in these studies. Here we investigate the spatial search problem on fractals of non-integer dimensions. Although the Dirac operator cannot be defined on a fractal, we construct the quantum walk on a fractal using the flip-flop operator that incorporates a Klein-Gordon mode. We find that the scaling behavior of the spatial search is determined by the spectral (and not the fractal) dimension. Our numerical results have been obtained on the well-known Sierpinski gaskets in two and three dimensions.
description: Revtex4, 9 pages, 11 figures (v2) Added: Relation of flip-flop walk to Klein-Gordon equation, Effect of non-translational invariance of fractals on spatial search
To thine own self be true : the links between psychological adjustment and expressive accuracy
Creators: name: Human, Jacqueline Lauren
Publisher: name: University of British Columbia
Year: 2013

description: Well-adjusted, happy people appear to be judgeable: their personalities tend to be seen more accurately than the personalities of less adjusted individuals (Colvin, 1993a, 1993b). The mechanisms behind this effect, however, are not well understood. One possibility is that well-adjusted individuals are not more judgeable at all; instead, they may have greater self-knowledge that makes them appear to be more easily understood. Studies 1 and 2 address this question by utilizing trait observability to disentangle self-knowledge from judgeability. Across these two round-robin studies of new acquaintances, well-adjusted individuals were seen with greater distinctive self-other agreement, but more so on low rather than highly observable traits. Thus, well-adjusted individuals provide new acquaintances with greater information regarding their less observable traits, enhancing others’ knowledge and thus distinctive self-other agreement. In sum, these studies indicate that well-adjusted individuals are indeed more judgeable. But how does adjustment facilitate judgeability? Across two video perceptions studies (Studies 3 and 4), I examined several potential mechanisms through which adjustment could promote judgeability at three stages of the Realistic Accuracy Model (RAM; Funder, 1995): 1) cue relevance, 2) cue availability, and 3) cue detection. In both studies, well-adjusted individuals were more judgeable because they provided others with more relevant cues: specifically, well-adjusted individuals behaved more in line with their distinctive personalities, which in turn led them to be seen more accurately. In contrast, neither cue availability nor detection could sufficiently account for the link between adjustment and judgeability. In sum, well-adjusted individuals are more judgeable because to their own selves, they are true.
A Formalism for Scattering of Complex Composite Structures. 2 Distributed Reference Points
Creators: name: Svaneborg, Carsten
name: Pedersen, Jan Skov
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: Recently we developed a formalism for the scattering from linear and acyclic branched structures build of mutually non-interacting sub-units.{[}C. Svaneborg and J. S. Pedersen, J. Chem. Phys. 136, 104105 (2012){]} We assumed each sub-unit has reference points associated with it. These are well defined positions where sub-units can be linked together. In the present paper, we generalize the formalism to the case where each reference point can represent a distribution of potential link positions. We also present a generalized diagrammatic representation of the formalism. Scattering expressions required to model rods, polymers, loops, flat circular disks, rigid spheres and cylinders are derived. and we use them to illustrate the formalism by deriving the generic scattering expression for micelles and bottle brush structures and show how the scattering is affected by different choices of potential link positions.
description: Paper no. 2 of a series
Lactation curve of Beetal goats in Pakistan
Creators: name: Waheed, Abdul
name: Sajjad Khan, Muammad
Publisher: name: Leibniz Institute for Farm Animal Biology (FBN), Dummerstorf, Germany
Year: 2013
Subjects: subject: 570 Life sciences

description: Archiv Tierzucht 56 (2013) 89, 892-898; ISSN 0003-9438
Oolina sulcata
Creators: name: Margerel, Jean-Pierre
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Chromista
Foraminifera
Nodosariata
Lagenida
Ellipsolagenidae
Oolina
Oolina sulcata

description: Oolina sulcata (Terquem, 1876)
(Fig. 5 E-J)
 Lagenulina sulcata Terquem, 1876: 68, pl. 7, fig. 9.
 Lagena costata – Balkwill & Wright 1885: 338, pl. 14, figs 3-5. — Cushman 1923: 12, pl. 2, figs 1, 2.
LOCALITÉ. — Raids-le-Scy (Manche).
MATÉRIEL EXAMINÉ. — Échantillon Raids-le-Scy 45,00 m (référence 810 coll. JPM, trois spécimens).
DESCRIPTION. — Test piriforme à section circulaire, orné dans les deux tiers inférieurs par une vingtaine de larges sillons délimitant des côtes et pourvu, dans la partie orale d’un col conique court; base du test tronquée; paroi calcaire épaisse à structure radiale; ouverture ronde; endoanulus granuleux.
description: Published as part of Margerel, Jean-Pierre, 2016, Étude critique des genres Favulina, Homalohedra, Oolina, Entosolenia et Pseudofavulina n. gen. du Pliocène et du Pléistocène inférieur de la France occidentale et du Sud de l'Angleterre, pp. 559-578 in Geodiversitas 38 (4) on page 568, DOI: 10.5252/g2016n4a6, http://zenodo.org/record/10081048
Aprendizagem ao Longo da Vida: Por que a Educação é Importante na Era da IA?
Creators: name: Silva, Altieres de Oliveira
Publisher: name: PROMPTAI ACADEMY
Year: 2025
Subjects: Aprendizagem ao longo da vida
Educação na era da inteligência artificial
Learnability
Educação executiva
Transformação digital
Prontidão para o futuro
Colaboração humano-IA
Obsolescência de habilidades
Pensamento crítico
Curadoria de conhecimento
Inovação educacional
Inteligência artificial e ensino

description: Este trabalho apresenta os principais pontos da palestra de Marc Sosna, da IESE Business School, intitulada "Aprendizagem ao Longo da Vida: Por que a Educação é Importante na Era da IA?". A apresentação utiliza a metáfora da viagem no tempo para discutir como a educação precisa evoluir diante do avanço acelerado da inteligência artificial (IA). O autor defende a importância da aprendizagem contínua, da capacidade de aprender (learnability) e da prontidão para o futuro, tanto no nível individual quanto organizacional.

Sosna alerta para os riscos de uma dependência excessiva da IA, que pode enfraquecer capacidades cognitivas humanas, e propõe quatro lentes para repensar a educação executiva: tecnologia, sociedade, aluno e academia. A palestra conclui que, mesmo com a presença crescente da IA, o fator humano continua essencial. O aprendizado deve ser personalizado, baseado em experiências significativas, e alinhado às rápidas mudanças do mercado e da sociedade.
Intravital assessment of body composition of cows in various production periods using urea dilution procedures
Creators: name: Adamski, Maciej
Publisher: name: Leibniz Institute for Farm Animal Biology (FBN), Dummerstorf, Germany
Year: 2013
Subjects: subject: 570 Life sciences

description: Archiv Tierzucht 56 (2013) 90, 899-910; ISSN 0003-9438
A KdV-like advection-dispersion equation with some remarkable properties
Creators: name: Sen, Abhijit
name: Ahalpara, Dilip P.
name: Thyagaraja, Anantanarayanan
name: Krishnaswami, Govind S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Neural and Evolutionary Computing (cs.NE)
subject: Analysis of PDEs (math.AP)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We discuss a new non-linear PDE, u_t + (2 u_xx/u) u_x = epsilon u_xxx, invariant under scaling of dependent variable and referred to here as SIdV. It is one of the simplest such translation and space-time reflection-symmetric first order advection-dispersion equations. This PDE (with dispersion coefficient unity) was discovered in a genetic programming search for equations sharing the KdV solitary wave solution. It provides a bridge between non-linear advection, diffusion and dispersion. Special cases include the mKdV and linear dispersive equations. We identify two conservation laws, though initial investigations indicate that SIdV does not follow from a polynomial Lagrangian of the KdV sort. Nevertheless, it possesses solitary and periodic travelling waves. Moreover, numerical simulations reveal recurrence properties usually associated with integrable systems. KdV and SIdV are the simplest in an infinite dimensional family of equations sharing the KdV solitary wave. SIdV and its generalizations may serve as a testing ground for numerical and analytical techniques and be a rich source for further explorations.
description: 15 pages, 4 figures, corrected sign typo in KdV Lagrangian above equation 31
Phase transitions in spin-orbital models with spin-space anisotropies for iron-pnictides: A study through Monte Carlo simulations
Creators: name: Applegate, Ryan
name: Singh, Rajiv R. P.
name: Chen, Cheng-Chien
name: Devereaux, Thomas P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The common phase diagrams of superconducting iron pnictides show interesting material specificities in the structural and magnetic phase transitions. In some cases the two transitions are separate and second order, while in others they appear to happen concomitantly as a single first order transition. We explore these differences using Monte Carlo simulations of a two-dimensional Hamiltonian with coupled Heisenberg-spin and Ising-orbital degrees of freedom. In this spin-orbital model, the finite-temperature orbital-ordering transition results in a tetragonal-to-orthorhombic symmetry reduction and is associated with the structural transition in the iron-pnictide materials. With a zero or very small spin space anisotropy, the magnetic transition separates from the orbital one in temperature, and the orbital transition is found to be in the Ising universality class. With increasing anisotropy, the two transitions rapidly merge together and tend to become weakly first order. We also study the case of a single-ion anisotropy and propose that the preferred spin-orientation along the antiferromagnetic direction in these materials is driven by orbital order.
IMPROVEMENT OF METHODS FOR STIMULATING THE REPRODUCTIVE ACTIVITY OF COWS OF THE GOLSHTIN BREED
Creators: name: Basic doctoral student - H.S.Urinov Scientific supervisor: D.Sc. Kuldashev O.U. Research Institute of Veterinary Medicine
Publisher: name: Zenodo
Year: 2025

description: The article obtained results such as the effectiveness of vitamin and mineral feed additives in stimulating the reproductive function of Holstein cows and reducing their service life in conjunction with the prevention of gynecological diseases.
Surficial and geochemical evolution of periglacial soils : applications to mineral exploration in Yukon
Creators: name: Cox, David
Publisher: name: University of British Columbia
Year: 2013

description: Exploration geochemistry is a powerful tool when exploring for gold deposits in periglacial environments, such as west-central Yukon. However, this study identified two main challenges to using soils as indicators of bedrock mineralization: 1) the variability of sample material over the scale of hundreds of meters and 2) The dilution of metal concentration in soil caused by the addition of loess. Herein, a study into the distribution of surficial materials is presented, the outcome of which is the mapping of surficial units whereby the terrain is divided into domains based on topography, surficial material and surficial processes. Furthermore, a study into the distribution of metals, specifically gold, within a selection of domains concludes that there is considerable geochemical variation between domains and that no single optimum sample material occurs throughout west-central Yukon. Hence, a tailored sampling protocol, based on surficial mapping is recommended. Results of scoping studies to the development of two methods to aid in exploration for gold deposits in west-central Yukon are presented: 1) a method for approximating the proportions of loess in a soil sample; proportion of loess in the Bdm horizon and Bm horizon from a selection of exposures from the Golden Saddle deposit were calculated. 2) A method for detecting bedrock alteration by the analysis of the mineralogy of surficial material; Well-crystalized illite, which forms specifically under hydrothermal conditions is identified in surficial material overlying the Golden Saddle deposit. This demonstrates that bedrock alteration minerals remain stable under surficial conditions. The two methods outlined above are demonstrated to be plausible and applicable to exploration in this area.
Calculation of TMD Evolution for Transverse Single Spin Asymmetry Measurements
Creators: name: Aybat, S. Mert
name: Prokudin, Alexei
name: Rogers, Ted C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The Sivers transverse single spin asymmetry (TSSA) is calculated and compared at different scales using the TMD evolution equations applied to previously existing extractions. We apply the Collins-Soper-Sterman (CSS) formalism, using the version recently developed by Collins. Our calculations rely on the universality properties of TMD-functions that follow from the TMD-factorization theorem. Accordingly, the non-perturbative input is fixed by earlier experimental measurements, including both polarized semi-inclusive deep inelastic scattering (SIDIS) and unpolarized Drell-Yan (DY) scattering. It is shown that recent COMPASS measurements are consistent with the suppression prescribed by TMD evolution.
description: 4 pages, 2 figures. Version published in Physical Review Letters
Données de la recherche et plans de gestion des données
Creators: name: Arènes, Cécile
Publisher: name: Zenodo
Year: 2021
Subjects: data management plan
research data management
open science

description: Matériel de formation sur les données de la recherche et la rédaction d'un data management plan Objectifs : comprendre le mouvement de la science ouverte connaître les enjeux de l'ouverture des données maîtriser les exigences des financeurs en matière d'ouverture des données connaître les points d'attention lors de la rédaction du plan de gestion des données envisager la rédaction d'un data paper Public : chercheurs et doctorants Durée : 1h30 Versions : .pptx et .pdf
Implicit-explicit timestepping with finite element approximation of reaction-diffusion systems on evolving domains
Creators: name: Lakkis, Omar
name: Madzvamuse, Anotida
name: Venkataraman, Chandrasekhar
Publisher: name: arXiv
Year: 2011
Subjects: subject: Numerical Analysis (math.NA)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We present and analyse an implicit-explicit timestepping procedure with finite element spatial approximation for a semilinear reaction-diffusion systems on evolving domains arising from biological models, such as Schnakenberg's (1979). We employ a Lagrangian formulation of the model equations which permits the error analysis for parabolic equations on a fixed domain but introduces technical difficulties, foremost the space-time dependent conductivity and diffusion. We prove optimal-order error estimates in the $\Lp{\infty}(0,T;\Lp{2}(\W))$ and $\Lp{2}(0,T;\Hil{1}(\W))$ norms, and a pointwise stability result. We remark that these apply to Eulerian solutions. Details on the implementation of the Lagrangian and the Eulerian scheme are provided. We also report on a numerical experiment for an application to pattern formation on an evolving domain.
Characterization of chromatin assembly in murine embryos
Creators: name: Jansen, Hailey Janice
Publisher: name: University of British Columbia
Year: 2013

description: During differentiation, changes in chromatin proteins lead to the establishment and maintenance of gene expression patterns. Histone H3 trimethylated at lysine 4 (H3K4me3) by the trithorax group (trxG) gene family Mixed lineage leukemia (MLL) is associated with active genes. H3K27me3 is trimethylated by the Polycomb group (PcG) Enhancer of Zeste (EZH2) at repressed genes. In Drosophila embryos, trxG and PcG proteins but not H3K4me3 or H3K27me3 are stable to DNA replication. In contrast, methylated histones are detected on nascent DNA in Drosophila and murine cell lines. Therefore some aspect of chromatin assembly or histone trimethylation must differ in different cells. My first aim was to determine if there is a change in the abundance of methylated histones at the replication fork in undifferentiated versus differentiated murine ES cells using two novel in vivo assays. Most undifferentiated ES cells lack early H3K4me3 and H3K27me3, but after 4 days of differentiation, most cells have early trimethylation of H3K4 and H3K27. I propose that the change in kinetics of histone methylation correlates with differentiation. To test this hypothesis, I carried out similar experiments on cells dissociated from day 9.5 (E9.5) and 14.5 (E14.5) murine embryos. In E9.5 cells there are two populations of cells, one that lacks methylated histones and the other contains methylated histones on nascent DNA. By E14.5 most cells exhibit H3K4me3 and H3K27me3 on nascent DNA. To determine if the presence of histone methyltransferases could account for the changes in histone methylation, I tested MLL1 and a subunit of the EZH2 complex, Su(z)12. Both are present continuously on nascent DNA, suggesting that their activity is regulated. Methylation and acetylation antagonize each other at the same residue. However I showed that the presence of acetylated H3K27 is not anticorrelated with H3K27me3 in most murine embryos cells. My results using inhibitors of the appropriate histone acetyltransferase were not conclusive owing to toxicity of the inhibitors. Overall, my results support the hypothesis that trimethylation of H3K4 and H3K27 on nascent DNA is developmentally regulated.
Bernd Herrmann / Gisela Grupe / Susanne Hummel / Hermann Piepenbrink / Holger Schutkowski, Prähistorische Anthropologie. Leitfaden der Feld- und Labormethoden
Creators: name: Rösing, Friedrich W.
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2021

description: Rezension zu: Bernd Herrmann / Gisela Grupe / Susanne Hummel / Hermann Piepenbrink / Holger Schutkowski, Prähistorische Anthropologie. Leitfaden der Feld- und Labormethoden. Springer-Verlag, Berlin und Heidelberg 1990. ISBN 3-540-52541-6. 445 Seiten mit zahlreichen Abbildungen
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 74 Nr. 1 (1996)
Corrections to Scaling for Watersheds, Optimal Path Cracks, and Bridge Lines
Creators: name: Fehr, E.
name: Schrenk, K. J.
name: Araújo, N. A. M.
name: Kadau, D.
name: Grassberger, P.
name: Andrade, J. S.
name: Herrmann, H. J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We study the corrections to scaling for the mass of the watershed, the bridge line, and the optimal path crack in two and three dimensions. We disclose that these models have numerically equivalent fractal dimensions and leading correction-to-scaling exponents. We conjecture all three models to possess the same fractal dimension, namely, $d_f=1.2168\pm0.0005$ in 2D and $d_f=2.487\pm0.003$ in 3D, and the same exponent of the leading correction, $Ω=0.9\pm0.1$ and $Ω=1.0\pm0.1$, respectively. The close relations between watersheds, optimal path cracks in the strong disorder limit, and bridge lines are further supported by either heuristic or exact arguments.
Kurt W. Alt / Werner Vach, Verwandtschaftsanalyse im alemannischen Gräberfeld von Kirchheim / Ries
Creators: name: Rösing, Friedrich W.
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2021

description: Rezension zu: Kurt W. Alt / Werner Vach, Verwandtschaftsanalyse im alemannischen Gräberfeld von Kirchheim / Ries. Basler Hefte zur Archäologie 3. Archäologie-Verlag, Basel 2004. ISBN 3-09 5448-02-5. 149 Seiten, Anhang mit 100 Abbildungen
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 87 Nr. 1 2009(2011)
Entosolenia intermillerelineata Margerel, 2016, n. sp.
Creators: name: Margerel, Jean-Pierre
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Chromista
Foraminifera
Nodosariata
Lagenida
Ellipsolagenidae
Entosolenia
Entosolenia intermillerelineata

description: Entosolenia intermillerelineata n. sp.
(Figs 6 M-O; 7A-C)
HOLOTYPE. — Échantillon la Bouillonnaie, 12,50 m (référence 819 collection JPM) (Fig. 6M, N).
PARATYPE. — Échantillon la Pugle 7,00 m (référence 820 collection JPM) (Fig. 7B, C).
 ÉTYMOLOGIE. — Du latin linea, ligne et intermillere, discontinu.
MATÉRIEL EXAMINÉ. — La Bouillonnaie 12,50 m (référence 821 collection JPM, trois spécimens); la Pugle 7,00 m (référence 822 collection JPM, dix spécimens).
NIVEAU TYPE. — Pliocène inférieur.
LOCALITÉ TYPE. — La Bouillonnaie (Maine-et-Loire).
DIAGNOSE. — Test piriforme orné de fines côtes longitudinales courtes.
DIMENSIONS. — L = 0,210 mm; diam. = 0,185 mm.
DISTRIBUTION. — Argiles brunes du Pliocène inférieur à l’Ouest d’Angers.
DESCRIPTION
Test piriforme tronqué dans sa partie orale, orné de fines côtes longitudinale courtes alternant plus ou moins et muni d’une épine basale; paroi calcaire épaisse à structure radiale; ouverture petite et ronde située au fond d’une dépression bordée par une large lèvre et entourée de petites épines; endosolen cylindrique, fin et axial, évasé à la base.
 Entosolenia lineata Williamson, 1848 (Fig. 7 D-G)
 Entosolenia lineata Williamson, 1848: 18, pl. 2, fig. 18.
LOCALITÉS. — St Erth (Cornouailles, Royaume Uni), Saint-Georgesde-Bohon, Auxais (Manche).
MATÉRIEL EXAMINÉ. — St Erth, 66/10 (référence 823 collection JPM, quatre spécimens); SG1 le Bourg 17,00 m (référence 824 collection JPM, 15 spécimens); Auxais T47 7,50-12,00 m (référence 825 collection JPM, 14 spécimens).
DESCRIPTION
 Test piriforme plus ou moins allongé orné de nombreuses fines côtes longitudinales, tronqué dans sa partie orale par un plateau pétaloïde à stries radiales concentriques et muni ou non d’une épine basale. Paroi calcaire hyaline à structure radiale. Ouverture petite et ronde. Endosolen long, cylindrique fin et axial, évasé à la base et bordé par une collerette striée. L’ouverture peut porter un exosolen.
description: Published as part of Margerel, Jean-Pierre, 2016, Étude critique des genres Favulina, Homalohedra, Oolina, Entosolenia et Pseudofavulina n. gen. du Pliocène et du Pléistocène inférieur de la France occidentale et du Sud de l'Angleterre, pp. 559-578 in Geodiversitas 38 (4) on pages 570-572, DOI: 10.5252/g2016n4a6, http://zenodo.org/record/10081048
Momentum-dependent pseudogaps in the half-filled two-dimensional Hubbard model
Creators: name: Rost, D.
name: Gorelik, E. V.
name: Assaad, F.
name: Blümer, N.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We compute unbiased spectral functions of the two-dimensional Hubbard model by extrapolating Green functions, obtained from determinantal quantum Monte Carlo simulations, to the thermodynamic and continuous time limits. Our results clearly resolve the pseudogap at weak to intermediate coupling, originating from a momentum selective opening of the charge gap. A characteristic pseudogap temperature T*, determined consistently from the spectra and from the momentum dependence of the imaginary-time Green functions, is found to match the dynamical mean-field critical temperature, below which antiferromagnetic fluctuations become dominant. Our results identify a regime where pseudogap physics is within reach of experiments with cold fermions in optical lattices.
description: 10 pages, 13 figures; extended version to appear in Phys. Rev. B
title: The Importance of Social Engineering
Creators: name: Allen, Jalaya
Publisher: name: Old Dominion University Libraries
Year: 2022

description: Most people are afraid of being attacked when walking to their car, relaxing at home, or doing normal things like shopping. Though the unlikeliest of attacks have become one of the most dangerous. Just imagine someone having the ability to watch your every move online and virtually. They can find your credit card information, passwords, social security number and so much more. Then with that information, they can steal your identity and sell it on the black market as well as threaten you for money. Attacks like these use something called Social Engineering to trick the user into giving up their information without even realizing. Though you may be asking, what is Social Engineering? Well Social Engineering are manipulation tactics that are aimed at getting people to give up their confidential information. These manipulation tactics play on our desires as well as our sense of urgency. Have you ever gotten a text or call saying that you have a package you didn’t order being shipped to your house and the only way to cancel the order was through clicking a link or calling the number listed? Or got an offer in your email saying that you were selected for a special prize, and you only have a certain time frame to claim it? These are common types of social engineering tactics that can play on your emotions. The best ways to avoid scams is to first understand what they are and why it is important. Next, you need to be able to recognize the different types of attacks and how to avoid them. Then, we will talk about what is ethical hacking and why is it important. Lastly, we will talk about how to avoid scams.
New Sources of Gravitational Waves during Inflation
Creators: name: Senatore, Leonardo
name: Silverstein, Eva
name: Zaldarriaga, Matias
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We point out that detectable inflationary tensor modes can be generated by particle or string sources produced during inflation, consistently with the requirements for inflation and constraints from scalar fluctuations. We show via examples that this effect can dominate over the contribution from quantum fluctuations of the metric, occurring even when the inflationary potential energy is too low to produce a comparable signal. Thus a detection of tensor modes from inflation does not automatically constitute a determination of the inflationary Hubble scale.
description: 32 pages, 1 figure. v2: JCAP published version; some overestimates corrected; main results unchanged
Christof Clausing, Untersuchungen zu den urnenfelderzeitlichen Gräbern mit Waffenbeigaben vom Alpenkamm bis zur Südzone des Nordischen Kreises
Creators: name: Falkenstein, Frank
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2021

description: Rezension zu: Christof Clausing, Untersuchungen zu den urnenfelderzeitlichen Gräbern mit Waffenbeigaben vom Alpenkamm bis zur Südzone des Nordischen Kreises. Eine Analyse ihrer Grabinventare und Grabformen. BAR International Series 1375, Oxford 2005. ISBN 1-84171-703-7. John and Erica Hedges Ltd., Oxford. 184 Seiten, 8 Diagramme, 4 Tabellen, 81 Tafeln und 3 Karten
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 86 Nr. 2 2008(2010)
Information Networks Secured by the Laws of Physics
Creators: name: Kish, Laszlo B.
name: Peper, Ferdinand
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cryptography and Security (cs.CR)
subject: Quantum Physics (quant-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: In this paper, we survey the state of the art of the secure key exchange method that is secured by the laws of classical statistical physics, and involves the Kirchhoff's law and the generalized Johnson noise equation, too. We discuss the major characteristics and advantages of these schemes especially in comparison with quantum encryption, and analyze some of the technical challenges of its implementation, too. Finally, we outline some ideas about how to use already existing and currently used wire lines, such as power lines, phone lines, internet lines to implement unconditionally secure information networks.
description: In press. Invited survey paper for the special issue "Frontiers of Information Network Science" of IEICE Transactions on the Fundamentals of Communications, Electronics, Information & Systems (Japan)
CFT Duals of Black Rings With Higher Derivative Terms
Creators: name: Goldstein, K.
name: Soltanpanahi, H.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study possible CFT duals of supersymmetric five dimensional black rings in the presence of supersymmetric higher derivative corrections to the N=2 supergravity action. A Virasoro algebra associated to an asymptotic symmetry group of solutions is defined by using the Kerr/CFT approach. We find the central charge and compute the microscopic entropy which is in precise agreement with the macroscopic entropy. Although apparently related to a different aspect of the near-horizon geometry and a different Virasoro algebra, we find that the c-extremization method leads to the same central charge and microscopic entropy computed in the Kerr/CFT approach. The relationship between these two point of view is clarified by relating the geometry to a self-dual orbifold of AdS3.
description: 15 pages, typos fixed, The last version to appear in Classical and Quantum Gravity
Protective Effects of Interleukin-4 on Tissue Destruction and Morphological Changes of Bovine Nasal Chondrocytes in vitro
Creators: name: Yadegari, Maryam
name: Orazizadeh, Mahmoud
name: Hashemitabar, Mahmoud
name: Khodadadi, Ali
Publisher: name: the Pasteur Institute of Iran
Year: 1996
Subjects: subject: Basic Sciences

description: Iranian Biomedical Journal (IBJ); ISSN 1028-852X
Matthias Hardt / Christian Lübke / Dittmar Schorkowitz (Hrsg.), Inventing the Pasts in North Central Europe. The National Perception of Early Medieval History and Archaeology. Gesellschaften und Staaten im Epochenwandel, Band 9
Creators: name: Peters, Hans-Günter
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2021

description: Rezension zu: Matthias Hardt / Christian Lübke / Dittmar Schorkowitz (Hrsg.), Inventing the Pasts in North Central Europe. The National Perception of Early Medieval History and Archaeology. Gesellschaften und Staaten im Epochenwandel, Band 9. Peter Lang, Europäischer Verlag der Wissenschaften, Frankfurt am Main 2003. ISBN 3-631-50538-8; US-ISBN 0-8204-6091-5; ISSN 0941-7389. 344 Seiten mit 55 Abbildungen
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 83 Nr. 2 2005(2006)
Anastasia Moraitis, Der römische Gutshof und das Gräberfeld bei Lösnich, Kreis Bernkastel-Wittlich
Creators: name: Schucany, Caty
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2021

description: Rezension zu: Anastasia Moraitis, Der römische Gutshof und das Gräberfeld bei Lösnich, Kreis Bernkastel-Wittlich. Ein Beitrag zur Rekonstruktion ländlicher Besiedlung im Trevererland. Trierer Zeitschrift, Beiheft 26. Selbstverlag des Rheinischen Landesmuseums, Trier 2003. ISBN 3-923319-54-1; ISSN 0934-7607. 168 Seiten mit 44 Abbildungen und 67 Tafeln
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 83 Nr. 2 2005(2006)
Übersetzung in Arabisch: Behandlung mit Antibiotika. Antibiotika - Was Sie wissen sollten.
Creators: name: Ärztliches Zentrum Für Qualität In Der Medizin (ÄZQ)
Publisher: name: Bundesärztekammer (BÄK); Kassenärztliche Bundesvereinigung (KBV); Ärztliches Zentrum für Qualität in der Medizin (ÄZQ)
Year: 2012
Subjects: subject: 610 Medical sciences; Medicine

description: Kurzinformationen für Patienten