cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Critical collapse of Newtonian fluids
Creators: name: Aguilar-Martinez, Silvestre
Publisher: name: University of British Columbia
Year: 2015

description: This thesis constitutes a numerical study concerning the dynamics of an inviscid fluid subject to Newtonian gravity. Type-II critical phenomena has been previously measured in gravitational collapse simulations of isothermal-gas-spheres in Newtonian gravity. Our first objective was to extend this work by applying the more general polytropic-gas equation-of-state to the spherically symmetric fluid. We showed that under generic conditions of critical collapse, the polytropic gas allows for scale-invariant solutions. These solutions display self-similarity of the first kind with non-linear scaling between the space and time variables. One of these solutions was identified as the critical solution in critical collapse simulations. Such solution was found to have a single unstable mode with a Lyapunov exponent whose value depends on the polytropic index (Γ) from the equation of state. We argued that this behavior constitutes evidence of type-II critical phenomena with a transition from type-II to type-I behavior occurring at Γ ≥ 6/5. Thus, the polytropic gas exhibits both types of critical behavior. These phenomena was investigated dynamically and also from perturbation analysis. In the second phase of the project we extended the hydrodynamic model to treat axi-symmetric gravitational collapse. This allowed us to study the effect of angular momentum on the critical solution. As previously predicted, infinitesimal initial rotation introduces a non-spherical, unstable axial mode into the dynamics. The measured scaling behavior of the specific angular momentum of the collapsed core agrees with the predicted growth rate (Lyapunov exponent) of the axial perturbation. This two-mode linear regime modifies the scaling laws via the introduction of universal functions that depend on the two-parameter family of initial data. The predicted universality of these functions was confirmed through careful measurements of the collapsed mass and its angular momentum near the collapse threshold. A two-parameter space survey reveals a universal behavior of the order-parameters, with no mass-gap even in the presence of finite initial rotation. The behavior changes slightly beyond some initial rotation threshold. The results then, can be interpreted as an intermediate convergence to a non-spherical self-similar critical solution with a single unstable mode.
Alteration of the conformational dynamics of a DNA hairpin by α-synuclein in the presence of aqueous two-phase systems
Creators: name: Mukherjee, Sanjib K.
name: Knop, Jim-Marcel
name: Möbitz, Simone
name: Winter, Roland
Publisher: name: TU Dortmund
Year: 2020
Subjects: subject: Biophysics
subject: DNA hairpin
subject: High pressure chemistry
subject: smFRET
subject: a-synuclein
subject: 540
subject: Biophysik
subject: Haarnadelschleife
subject: Hochdruckchemie
subject: Fluoreszenz-Resonanz-Energie-Transfer
subject: Synuclein

description: The effect of an amyloidogenic intrinsically disordered protein, α-synuclein, which is associated with Parkinson's disease (PD), on the conformational dynamics of a DNA hairpin (DNA-HP) was studied by employing the single-molecule Förster resonance energy transfer method. The open-to-closed conformational equilibrium of the DNA-HP is drastically affected by binding of monomeric α-synuclein to the loop region of the DNA-HP. Formation of a protein-bound intermediate conformation is fostered in the presence of an aqueous two-phase system mimicking intracellular liquid-liquid phase separation. Using pressure modulation, additional mechanistic information about the binding complex could be retrieved. Hence, in addition to toxic amyloid formation, α-synuclein may alter expression profiles of disease-modifying genes in PD. Furthermore, these findings might also have significant bearings on the understanding of the physiology of organisms thriving at high pressures in the deep sea.
description: Chemistry - a european journal;Vol. 26. 2020, issue 48, pp 10987-10991
Investigations on selectivity of gas-liquid reactions in capillaries
Creators: name: Grühn, Julia
name: Burke, Inga
name: Neuhaus, Nadine
name: Kockmann, Norbert
Publisher: name: TU Dortmund
Year: 2020
Subjects: subject: Coiled flow inverter
subject: Gas-liquid reaction
subject: Michaelis-Menten kinetic
subject: Taylor flow
subject: 660
subject: Mikroreaktor
subject: Schwallströmung
subject: Gas-Flüssigkeit-Strömung
subject: Biokatalyse

description: Biocatalysis offers a broad spectrum of possible ecological and economic advantages over conventional chemical catalysis processes, e.g., lower energy consumption and high enantio selectivity. The focus of this work is on gas-liquid reactions. These are of great importance in the chemical and biochemical industry and subject of current research since they are often limited by mass transfer or show low selectivity. Different suitable biocatalytically gas-liquid reaction systems were tested in capillary reactor designs in order to obtain information about the interaction between reaction and fluid mechanics. Furthermore, an optical measuring method was established. The experiments were performed in batch mode in a glass beaker with a flow cuvette for UV/Vis measurement of product concentration.
description: Chemie Ingenieur Technik;Vol. 92. 2020, issue 5, pp 624-628
Orbital-order melting in rare-earth manganites: the role of super-exchange
Creators: name: Flesch, Andreas
name: Zhang, Guoren
name: Koch, Erik
name: Pavarini, Eva
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study the mechanism of orbital-order melting observed at temperature T_OO in the series of rare-earth manganites. We find that many-body super-exchange yields a transition-temperature T_KK that decreases with decreasing rare-earth radius, and increases with pressure, opposite to the experimental T_OO. We show that the tetragonal crystal-field splitting reduces T_KK further increasing the discrepancies with experiments. This proves that super-exchange effects, although very efficient, in the light of the experimentally observed trends, play a minor role for the melting of orbital ordering in rare-earth manganites.
description: 4 pages, 5 figures
Model predictive control of a collaborative manipulator considering dynamic obstacles
Creators: name: Krämer, Maximilian
name: Rösmann, Christoph
name: Hoffmann, Frank
name: Bertram, Torsten
Publisher: name: TU Dortmund
Year: 2020
Subjects: subject: Human-robot collaboration
subject: Input delay
subject: Model predictive control
subject: Online trajectory optimization
subject: 620
subject: Mensch-Maschine-Kommunikation
subject: Industrieroboter
subject: Input-Output-Modell
subject: Bahnplanung
subject: Kollisionsschutz
subject: Modellierung

description: Collaborative robots have to adapt its motion plan to a dynamic environment and variation of task constraints. Currently, they detect collisions and interrupt or postpone their motion plan to prevent harm to humans or objects. The more advanced strategy proposed in this article uses online trajectory optimization to anticipate potential collisions, task variations, and to adapt the motion plan accordingly. The online trajectory planner pursues a model predictive control approach to account for dynamic motion objectives and constraints during task execution. The prediction model relates reference joint velocities to actual joint positions as an approximation of built-in robot tracking controllers. The optimal control problem is solved with direct collocation based on a hypergraph structure, which represents the nonlinear program and allows to efficiently adapt to structural changes in the optimization problem caused by moving obstacles. To demonstrate the effectiveness of the approach, the robot imitates pick-and-place tasks while avoiding self-collisions, semistatic, and dynamic obstacles, including a person. The analysis of the approach concerns computation time, constraint violations, and smoothness. It shows that after model identification, order reduction, and validation on the real robot, parallel integrators with compensation for input delays exhibit the best compromise between accuracy and computational complexity. The model predictive controller can successfully approach a moving target configuration without prior knowledge of the reference motion. The results show that pure hard constraints are not sufficient and lead to nonsmooth controls. In combination with soft constraints, which evaluate the proximity of obstacles, smooth and safe trajectories are planned.
description: Optimal control applications and methods;Vol. 41. 2020, issue 4, pp 1211-1232
D7.3.2 NAIADES Front-End and HMI Mechanisms and Integrated Decision Support Engine – User manual for Carouge
Creators: name: Sklavidis, Iosif
Publisher: name: Zenodo
Year: 2023

description: This report provides the user manual about HMI, DSS and the other NAIADES components for the NAIADES Use Cases in Carouge (Switzerland), in order to be translated in French for the convenience of the end-uses, as well as the smooth adaptation of HMI.
Fast Sparse Matrix-Vector Multiplication on GPUs: Implications for Graph Mining
Creators: name: Yang, Xintian
name: Parthasarathy, Srinivasan
name: Sadayappan, Ponnuswamy
Publisher: name: arXiv
Year: 2011
Subjects: subject: Numerical Analysis (math.NA)
subject: Mathematical Software (cs.MS)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: Scaling up the sparse matrix-vector multiplication kernel on modern Graphics Processing Units (GPU) has been at the heart of numerous studies in both academia and industry. In this article we present a novel non-parametric, self-tunable, approach to data representation for computing this kernel, particularly targeting sparse matrices representing power-law graphs. Using real data, we show how our representation scheme, coupled with a novel tiling algorithm, can yield significant benefits over the current state of the art GPU efforts on a number of core data mining algorithms such as PageRank, HITS and Random Walk with Restart.
description: VLDB2011
D7.3.1 NAIADES Front-End and HMI Mechanisms and Integrated Decision Support Engine – User manual for Alicante
Creators: name: Sklavidis, Iosif
Publisher: name: Zenodo
Year: 2023

description: This report provides the user manual about HMI, DSS and the other NAIADES components for the NAIADES Use Cases in Alicante (Spain), in order to be translated to Spanish for the convenience of the end-uses, as well as the smooth adaptation of HMI.This document will help the end-users to “unlock” the privileges of using the final platform in testing environments, such as the Use Cases.
title: Arduino-based slider setup for gas–liquid mass transfer investigations
title: experiments and CFD simulations
titleType: AlternativeTitle
Creators: name: Krieger, Waldemar
name: Bayraktar, Evren
name: Mierka, Otto
name: Kaiser, Lutz
name: Dinter, Robin
name: Hennekes, Julian
name: Turek, Stefan
name: Kockmann, Norbert
Publisher: name: TU Dortmund
Year: 2020
Subjects: subject: Arduino based microcontroller
subject: Gas–liquid capillary flow
subject: Local mass transfer
subject: Noninvasive measurement
subject: Numerical simulation
subject: 660
subject: Gas-Flüssigkeit-Strömung
subject: Arduino-Plattform
subject: Mikrocontroller
subject: Numerische Strömungssimulation
subject: Stoffübertragung
subject: Physikalisch-chemische Messung

description: The implementation of traditional sensors is a drawback when investigating mass transfer phenomena within microstructured devices, since they disturb the flow and reactor characteristics. An Arduino based slider setup is developed, which is equipped with a computer-vision system to track gas–liquid slug flow. This setup is combined with an optical analytical method allowing to compare experimental results against CFD simulations and investigate the entire lifetime of a single liquid slug with high spatial and temporal resolution. Volumetric mass transfer coefficients are measured and compared with data from literature and the mass transfer contribution of the liquid film is discussed.
description: AIChE Journal;Vol. 66. 2020, issue 6, e16953
$ζ$-regularised spectral determinants on metric graphs
Creators: name: Texier, Christophe
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Several general results for the spectral determinant of the Schrödinger operator on metric graphs are reviewed. Then, a simple derivation for the $ζ$-regularised spectral determinant is proposed, based on the Roth trace formula. Two types of boundary conditions are studied: functions continuous at the vertices and functions whose derivative is continuous at the vertices. The $ζ$-regularised spectral determinant of the Schrödinger operator acting on functions with the most general boundary conditions is conjectured in conclusion. The relation to the Ihara, Bass and Bartholdi formulae obtained for combinatorial graphs is also discussed.
description: LaTeX, 21 pages, 2 pdf figures
Three dimensionality of band structure and a large residual quasiparticle population in Ba$_{0.67}$K$_{0.33}$Fe$_2$As$_2$ as revealed by the c-axis polarized optical measurement
Creators: name: Cheng, B.
name: Chen, Z. G.
name: Zhang, C. L.
name: Ruan, R. H.
name: Dong, T.
name: Hu, B. F.
name: Guo, W. T.
name: Miao, S. S.
name: Zheng, P.
name: Luo, J. L.
name: Xu, G.
name: Dai, Pengcheng
name: Wang, N. L.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report on a c-axis polarized optical measurement on a Ba$_{0.67}$K$_{0.33}$Fe$_2$As$_2$ single crystal. We find that the c-axis optical response is significantly different from that of high-T$_c$ cuprates. The experiments reveal an anisotropic three-dimensional optical response with the absence of the Josephson plasma edge in R($ω$) in the superconducting state. Furthermore, different from the ab-plane optical response, a large residual quasiparticle population down to $T\sim\frac{1}{5}T_c$ was observed in the c-axis polarized reflectance measurement. We elaborate that there exist nodes for the superconducting gap in regions of the 3D Fermi surface that contribute dominantly to the c-axis optical conductivity.
description: 4 figures
An f-chromatic spanning forest of edge-colored complete bipartite graphs
Creators: name: Suzuki, Kazuhiro
Publisher: name: arXiv
Year: 2011
Subjects: subject: Combinatorics (math.CO)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 05C05, 05C15

description: In 2001, Brualdi and Hollingsworth proved that an edge-colored balanced complete bipartite graph Kn,n with a color set C = {1,2,3,..., 2n-1} has a heterochromatic spanning tree if the number of edges colored with colors in R is more than |R|^2 /4 for any non-empty subset R \subseteq C, where a heterochromatic spanning tree is a spanning tree whose edges have distinct colors, namely, any color appears at most once. In 2010, Suzuki generalized heterochromatic graphs to f-chromatic graphs, where any color c appears at most f(c). Moreover, he presented a necessary and sufficient condition for graphs to have an f-chromatic spanning forest with exactly w components. In this paper, using this necessary and sufficient condition, we generalize the Brualdi-Hollingsworth theorem above.
description: 8 pages, 3 figures
The Indirect Search for Dark Matter from the centre of the Galaxy with the Fermi LAT
Creators: name: Morselli, A.
name: Canadas, B.
name: Vitale, V.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Dark matter (DM) constitutes around a 25% of the Universe, while baryons only a 4%. DM can be reasonably assumed to be made of particles, and many theories (Super-symmetry, Universal Extra Dimensions, etc.) predict Weakly Interacting Massive Particles (WIMPs) as natural DM candidates at the weak scale. Self-annihilation (or decay) of WIMPs might produce secondary gamma-rays, via hadronization or as final state radiation. Since its launch in the 2008, the Large Area Telescope on-board of the Fermi gamma-ray Space Telescope has detected the largest amount of gamma-rays to date, in the 20MeV 300GeV energy range, allowing to perform a very sensitive indirect experimental search for DM (by means of high-energy gamma-rays). DM forms large gravitationally bounded structures, the halos, which can host entire galaxies, such as the Milky Way. The DM distribution in the central part of the halos is not experimentally know, despite a very large density enhancement might be present. As secondary gamma rays production is very sensitive to WIMP density, a very effective search can be performed from the regions where the largest density is expected. Therefore the information provided by the DM halo N-body simulations are crucial. The largest gamma-ray signal from DM annihilation is expected from the centre of the Galaxy. In the same region a large gamma-ray background is produced by bright discrete sources and the cosmic-rays interacting with the interstellar gas and the photons fields. Here we report an update of the indirect search for DM from the Galactic Center (GC).
description: 6 pages, 2 figures. Invited talk presented at the Workshop "SciNeGHE 2010", September 8-10, 2010, Trieste, Italy. To appear in Il Nuovo Cimento C - Colloquia on physics
Automatic Wrappers for Large Scale Web Extraction
Creators: name: Dalvi, Nilesh
name: Kumar, Ravi
name: Soliman, Mohamed
Publisher: name: arXiv
Year: 2011
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: We present a generic framework to make wrapper induction algorithms tolerant to noise in the training data. This enables us to learn wrappers in a completely unsupervised manner from automatically and cheaply obtained noisy training data, e.g., using dictionaries and regular expressions. By removing the site-level supervision that wrapper-based techniques require, we are able to perform information extraction at web-scale, with accuracy unattained with existing unsupervised extraction techniques. Our system is used in production at Yahoo! and powers live applications.
description: VLDB2011
The nurse's experience of love in healthcare : a fundamental element of health and wellbeing
Creators: name: Snook, Sky Elisabeth
Publisher: name: University of British Columbia
Year: 2015

description: Love as a fundamental element of wellbeing is a phenomenon that has been explored throughout history since questions of philosophy began. Only in more recent times has love been explored in the realm of healthcare, though most probably its presence has always been there. Part of everyday life, love’s necessity in wellness, illness, and the field of healthcare is becoming recognized, for in the absence of love, illness, addiction, failure-to-thrive and death are seen. Understanding the experience of love in healthcare, however, is limited particularly from the nurse’s perspective, regardless of the idea that perhaps the profession itself is based on love for humanity. The focus of this research was to increase understanding of love in healthcare from the nurse’s perspective using a qualitative Gadamerian approach and the hermeneutic circle. A Fusion of Horizons between what was previously understood about love and the experiences of six nurse participants was created. Photography and in-depth interviews illuminated love present in healthcare practice, which also turned out to be reflective of love in life. It was discovered that love manifests in forms of being, awareness, action and connection and that one cannot truly understand this love unless they experience it. Much understanding has yet to come, and though love certainly exists in healthcare, it is not yet present to the extent that it could be. Therefore, research like this study which focuses on illuminating the concept of love, could prove beneficial to healthcare and humanity.
Quasi-Periodic Formaldehyde Maser Flares in the Massive Protostellar Object IRAS18566+0408
Creators: name: Araya, E. D.
name: Hofner, P.
name: Goss, W. M.
name: Kurtz, S.
name: Richards, A. M. S.
name: Linz, H.
name: Olmi, L.
name: Sewilo, M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report results of an extensive observational campaign of the 6 cm formaldehyde maser in the young massive stellar object IRAS18566+0408 (G37.55+0.20) conducted from 2002 to 2009. Using Arecibo, VLA, and GBT, we discovered quasi-periodic formaldehyde flares (P ~ 237 days). Based on Arecibo observations, we also discovered correlated variability between formaldehyde (H2CO) and methanol (CH3OH) masers. The H2CO and CH3OH masers are not spatially coincident, as demonstrated by different line velocities and high angular resolution MERLIN observations. The flares could be caused by variations in the infrared radiation field, possibly modulated by periodic accretion onto a young binary system.
description: 16 pages, 3 figures, accepted for publication in the Astrophysical Journal Letters
Chandra grating spectroscopy of the Be/X-ray binary 1A 0535+262
Creators: name: Reynolds, Mark T.
name: Miller, Jon M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present Chandra HETGS spectroscopy of the Be/X-ray binary 1A 0535+262 obtained during the 2009/2010 giant outburst. These are the first CCD grating spectra of this type of system during a giant outburst. Our spectra reveal a number of lines including a narrow Fe K_alpha emission line with a FWHM of ~ 5000 km s^-1. For the first time, we detect the presence of a highly ionized outflow in a Be/X-ray binary. Assuming that the line is He-like Fe XXV, fits with a simple Gaussian imply an outflow velocity of ~ 1500 km s^-1. However, self-consistent photoionization modeling with XSTAR suggests that Fe XXIII-XXIV must also contribute. In this case, an outflow velocity of ~ 3000 km s^-1 is implied. These results are discussed in the context of the accretion flow in Be-star, neutron star, and black hole X-ray binaries.
description: 7 pages, 4 figures, formatted using emulateapj.cls. Accepted for publication in ApJ
Additional file 3: of The European guideline on management of major bleeding and coagulopathy following trauma: fifth edition
Creators: name: Spahn, Donat
name: Bouillon, Bertil
name: Cerny, Vladimir
name: Duranteau, Jacques
name: Filipescu, Daniela
name: Hunt, Beverley
name: Komadina, Radko
name: Maegele, Marc
name: Nardi, Giuseppe
name: Riddez, Louis
name: Samama, Charles-Marc
name: Vincent, Jean-Louis
name: Rossaint, Rolf
Publisher: name: figshare
Year: 2019
Subjects: subject: Cell Biology
subject: Molecular Biology
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology

description: Summary of recommendations. (PDF 103 kb)
The evolution from BCS to BEC superfluidity in the presence of disorder
Creators: name: Han, Li
name: de Melo, C. A. R. Sá
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We describe the effects of disorder on the critical temperature of $s$-wave superfluids from the BCS to the BEC regime, with direct application to ultracold fermions. We use the functional integral method and the replica technique to study Gaussian correlated disorder due to impurities, and we discuss how this system can be generated experimentally. In the absence of disorder, the BCS regime is characterized by pair breaking and phase coherence temperature scales which are essentially the same allowing strong correlations between the amplitude and phase of the order parameter for superfluidity. As non-pair breaking disorder is introduced the largely overlapping Cooper pairs conspire to maintain phase coherence such that the critical temperature remains essentially unchanged, and Anderson's theorem is satisfied. However in the BEC regime the pair breaking and phase coherence temperature scales are very different such that non-pair breaking disorder can affect dramatically phase coherence, and thus the critical temperature, without the requirement of breaking tightly-bound fermion pairs simultaneously. In this case, Anderson's theorem does not apply, and the critical temperature can be more easily reduced in comparison to the BCS limit. Lastly, we find that the superfluid is more robust against disorder in the intermediate region near unitarity between the two regimes.
Metal-insulator transition in layered nickelates La$_3$Ni$_2$O$_{7-δ}$ ($δ$=0.0, 0.5, 1)
Creators: name: Pardo, Victor
name: Pickett, Warren E.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Three low-valence layered nickelates with general formula La$_3$Ni$_2$O$_{7-δ}$ ($δ$=0.0, 0.5, 1) are studied by ab initio techniques. Both the insulating and metallic limits are analyzed, together with the compound at the Mott transition ($δ$= 0.5; Ni$^{2+}$), that shows insulating behavior, with all Ni atoms in a S=1 high-spin state. The compound in the $δ$= 1 limit (La$_3$Ni$_2$O$_6$), with mean formal valence Ni$^{1.5+}$ and hence nominally metallic, nevertheless shows a correlated {\it molecular} insulating state, produced by the quantum confinement of the NiO$_2$ bilayers and the presence of mainly d$_{z^2}$ bands (bonding-antibonding split) around the gap. The metallic compound shows a larger bandwidth of the e$_g$ states that can sustain the experimentally observed paramagnetic metallic properties. The evolution of the in-plane antiferromagnetic coupling with the oxygen content is discussed, and also the similarities of this series of compounds with the layered superconducting cuprates.
description: 7 pages, 4 figures
Exploring attitudes and preferences toward species at risk in British Columbia
Creators: name: Echeverri Ochoa, Alejandra
Publisher: name: University of British Columbia
Year: 2015

description: There are 199 species at risk in British Columbia (B.C.). To elicit public support to conserve biodiversity, it is important to understand people’s attitudes and preferences toward species at risk. Here we examine how people perceive endangered species in B.C., how message framing shapes the attitudes toward the species, and whether implicit or explicit preferences determine willingness to pay for conservation. In Study 1 reported in Chapter 2, we presented three messages about sea otters to 623 residents in B.C., and measured the change in their attitudes toward sea otters using Kellert’s typology of basic attitudes toward wildlife. The messages were framed as either positive (as a keystone species), negative (resource conflict with First Nations’ fishermen in the West Coast of Vancouver Island), or neutral (biological facts). We found that the negative message promoted acceptance for managing sea otters and their habitats for use values (utilitarian-consumption, utilitarian-habitat), and for exerting control over sea otters (dominionistic). This shift in attitudes occurred even though the negative message was perceived as less convincing and believable than the positive or neutral messages. The positive message, on the other hand, decreased utilitarian-consumption attitudes. In Study 2 reported in Chapter 3, we evaluated people’s implicit and explicit preferences for four species at risk in B.C. (sea otter, American badger, caribou, and yellow-breasted chat). We found that explicit rather than implicit preference predicts willingness to pay for conservation of each species, and findings suggest that people apply the affect heuristic when judging species—species that are less liked may be perceived as riskier, and vice versa—. This finding holds for both residents in B.C. (n=55) and outside of B.C. (n=463). The results from the two studies highlight the importance of attitudes, messaging, and preference when designing conservation campaigns and efforts.
Environmental Dependence of Local Luminous Infrared Galaxies
Creators: name: Hwang, Ho Seong
name: Elbaz, David
name: Lee, Jong Chul
name: Jeong, Woong-Seob
name: Park, Changbom
name: Lee, Myung Gyoon
name: Lee, Hyung Mok
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the environmental dependence of local luminous infrared galaxies (LIRGs) and ultraluminous infrared galaxies (ULIRGs) found in the Sloan Digital Sky Survey (SDSS) data. The LIRG and ULIRG samples are constructed by cross-correlating spectroscopic catalogs of galaxies of the SDSS Data Release 7 and the Infrared Astronomical Satellite Faint Source Catalog. We examine the effects of the large-scale background density (Sigma_5), galaxy clusters, and the nearest neighbor galaxy on the properties of infrared galaxies (IRGs). We find that the fraction of LIRGs plus ULIRGs among IRGs (f_(U)LIRGs) and the infrared luminosity (L_IR) of IRGs strongly depend on the morphology of and the distance to the nearest neighbor galaxy: the probability for an IRG to be a (U)LIRG (f_(U)LIRGs) and its L_IR both increase as it approaches a late-type galaxy, but decrease as it approaches an early-type galaxy (within half the virial radius of its neighbor). We find no dependence of f_(U)LIRGs on the background density (surface galaxy number density) at fixed stellar mass of galaxies. The dependence of f_(U)LIRGs on the distance to galaxy clusters is also found to be very weak, but in highest-density regions such as the center of galaxy clusters, few (U)LIRGs are found. These environmental dependence of LIRGs and ULIRGs and the evolution of star formation rate (SFR)-environment relation from high redshifts to low redshifts seem to support the idea that galaxy-galaxy interactions/merging play a critical role in triggering the star formation activity of LIRGs and ULIRGs.
description: 14 pages, 17 figures. To appear in A&A. Paper with high resolution figures is available at http://astro.kias.re.kr/~hshwang/doc/ms_hwang_lirg.pdf
Controlling the Dynamics of Many-Electron Systems from First Principles: A Marriage of Optimal Control and Time-Dependent Density-Functional Theory
Creators: name: Castro, Alberto
name: Werschnik, Jan
name: Gross, Eberhard K. U.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: FOS: Physical sciences

description: Quantum Optimal Control Theory (QOCT) provides the necessary tools to theoretically design driving fields capable of controlling a quantum system towards a given state or along a prescribed path in Hilbert space. This theory must be complemented with a suitable model for describing the dynamics of the quantum system. Here, we are concerned with many electron systems (atoms, molecules, quantum dots, etc) irradiated with laser pulses. The full solution of the many electron Schr{ö}dinger equation is not feasible in general, and therefore, if we aim to an ab initio description, a suitable choice is time-dependent density-functional theory (TDDFT). In this work, we establish the equations that combine TDDFT with QOCT, and demonstrate their numerical feasibility with examples.
description: 11 pages, 1 figure
Geregu Nuclear Power Project
Creators: name: Ikemba, Samuel
Publisher: name: Zenodo
Year: 2023
Subjects: Nuclear, Electricity, Investment

description: The Geregu nuclear power plant is a twin-reactor nuclear power plant planned in Nigeria. The project foresees construction of two nuclear reactors supplied by Atomstroyexport and the plant would be located in Geregu, Kogi State. It is part of efforts to find solution to the shortage of power supply in the country.
Minimal-memory realization of pearl-necklace encoders of general quantum convolutional codes
Creators: name: Houshmand, Monireh
name: Hosseini-Khayat, Saied
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Quantum convolutional codes, like their classical counterparts, promise to offer higher error correction performance than block codes of equivalent encoding complexity, and are expected to find important applications in reliable quantum communication where a continuous stream of qubits is transmitted. Grassl and Roetteler devised an algorithm to encode a quantum convolutional code with a "pearl-necklace encoder." Despite their theoretical significance as a neat way of representing quantum convolutional codes, they are not well-suited to practical realization. In fact, there is no straightforward way to implement any given pearl-necklace structure. This paper closes the gap between theoretical representation and practical implementation. In our previous work, we presented an efficient algorithm for finding a minimal-memory realization of a pearl-necklace encoder for Calderbank-Shor-Steane (CSS) convolutional codes. This work extends our previous work and presents an algorithm for turning a pearl-necklace encoder for a general (non-CSS) quantum convolutional code into a realizable quantum convolutional encoder. We show that a minimal-memory realization depends on the commutativity relations between the gate strings in the pearl-necklace encoder. We find a realization by means of a weighted graph which details the non-commutative paths through the pearl-necklace. The weight of the longest path in this graph is equal to the minimal amount of memory needed to implement the encoder. The algorithm has a polynomial-time complexity in the number of gate strings in the pearl-necklace encoder.
description: 16 pages, 5 figures; extends paper arXiv:1004.5179v1
Using Paxos to Build a Scalable, Consistent, and Highly Available Datastore
Creators: name: Rao, Jun
name: Shekita, Eugene J.
name: Tata, Sandeep
Publisher: name: arXiv
Year: 2011
Subjects: subject: Databases (cs.DB)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: Spinnaker is an experimental datastore that is designed to run on a large cluster of commodity servers in a single datacenter. It features key-based range partitioning, 3-way replication, and a transactional get-put API with the option to choose either strong or timeline consistency on reads. This paper describes Spinnaker's Paxos-based replication protocol. The use of Paxos ensures that a data partition in Spinnaker will be available for reads and writes as long a majority of its replicas are alive. Unlike traditional master-slave replication, this is true regardless of the failure sequence that occurs. We show that Paxos replication can be competitive with alternatives that provide weaker consistency guarantees. Compared to an eventually consistent datastore, we show that Spinnaker can be as fast or even faster on reads and only 5% to 10% slower on writes.
description: VLDB2011
Additional file 1: of GO functional similarity clustering depends on similarity measure, clustering method, and annotation completeness
Creators: name: Liu, Meng
name: Thomas, Paul
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Evolutionary Biology
subject: Environmental Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Developmental Biology
subject: Infectious Diseases
subject: FOS: Health sciences

description: Introduction to gene-gene similarity measures (DOCX 89 kb)
Helicity transport in a simulated coronal mass ejection
Creators: name: Kliem, B.
name: Rust, S.
name: Seehafer, N.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: It has been suggested that coronal mass ejections (CMEs) remove the magnetic helicity of their coronal source region from the Sun. Such removal is often regarded to be necessary due to the hemispheric sign preference of the helicity, which inhibits a simple annihilation by reconnection between volumes of opposite chirality. Here we monitor the relative magnetic helicity contained in the coronal volume of a simulated flux rope CME, as well as the upward flux of relative helicity through horizontal planes in the simulation box. The unstable and erupting flux rope carries away only a minor part of the initial relative helicity; the major part remains in the volume. This is a consequence of the requirement that the current through an expanding loop must decrease if the magnetic energy of the configuration is to decrease as the loop rises, to provide the kinetic energy of the CME.
description: Proc. IAU Symp. 274, Advances in Plasma Astrophysics (2011), subm
Fast Set Intersection in Memory
Creators: name: Ding, Bolin
name: König, Arnd Christian
Publisher: name: arXiv
Year: 2011
Subjects: subject: Databases (cs.DB)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: Set intersection is a fundamental operation in information retrieval and database systems. This paper introduces linear space data structures to represent sets such that their intersection can be computed in a worst-case efficient way. In general, given k (preprocessed) sets, with totally n elements, we will show how to compute their intersection in expected time O(n/sqrt(w)+kr), where r is the intersection size and w is the number of bits in a machine-word. In addition,we introduce a very simple version of this algorithm that has weaker asymptotic guarantees but performs even better in practice; both algorithms outperform the state of the art techniques in terms of execution time for both synthetic and real data sets and workloads.
description: VLDB2011
Nonlinear gap junctions enable long-distance propagation of pulsating calcium waves in astrocyte networks
Creators: name: Goldberg, Mati
name: De Pittà, Maurizio
name: Volman, Vladislav
name: Berry, Hugues
name: Ben-Jacob, Eshel
Publisher: name: arXiv
Year: 2010
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Chaotic Dynamics (nlin.CD)
subject: Cell Behavior (q-bio.CB)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: A new paradigm has recently emerged in brain science whereby communications between glial cells and neuron-glia interactions should be considered together with neurons and their networks to understand higher brain functions. In particular, astrocytes, the main type of glial cells in the cortex, have been shown to communicate with neurons and with each other. They are thought to form a gap-junction-coupled syncytium supporting cell-cell communication via propagating Ca2+ waves. An identified mode of propagation is based on cytoplasm-to-cytoplasm transport of inositol trisphosphate (IP3) through gap junctions that locally trigger Ca2+ pulses via IP3-dependent Ca2+-induced Ca2+ release. It is, however, currently unknown whether this intracellular route is able to support the propagation of long-distance regenerative Ca2+ waves or is restricted to short-distance signaling. Furthermore, the influence of the intracellular signaling dynamics on intercellular propagation remains to be understood. In this work, we propose a model of the gap-junctional route for intercellular Ca2+ wave propagation in astrocytes showing that: (1) long-distance regenerative signaling requires nonlinear coupling in the gap junctions, and (2) even with nonlinear gap junctions, long-distance regenerative signaling is favored when the internal Ca2+ dynamics implements frequency modulation-encoding oscillations with pulsating dynamics, while amplitude modulation-encoding dynamics tends to restrict the propagation range. As a result, spatially heterogeneous molecular properties and/or weak couplings are shown to give rise to rich spatiotemporal dynamics that support complex propagation behaviors. These results shed new light on the mechanisms implicated in the propagation of Ca2+ waves across astrocytes and precise the conditions under which glial cells may participate in information processing in the brain.
description: Article: 30 pages, 7 figures. Supplementary Material: 11 pages, 6 figures
Neutrino Phenomenology of gauged L_mu - L_tau: MINOS and beyond
Creators: name: Heeck, Julian
name: Rodejohann, Werner
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: If a Z' gauge boson from a gauged L_mu - L_tau symmetry is very light, it is associated with a long-range leptonic force. In this case the particles in the Sun create via mixing of the Z' with the Standard Model Z a flavor-dependent potential for muon neutrinos in terrestrial long-baseline experiments. The potential changes sign for anti-neutrinos and hence can lead to apparent differences in neutrino and anti-neutrino oscillations without introducing CP or CPT violation. This could for instance explain the recently found discrepancy in the MINOS experiment. We obtain the associated parameters of gauged L_mu - L_tau required to explain this anomaly. The consequences for future long-baseline experiments are also discussed, and we compare the scenario to standard NSIs. When used to explain MINOS, both approaches have severe difficulties with existing limits.
description: 3 pages, 2 figures. Talk given at the 12th International Workshop on Neutrino Factories, Superbeams and Beta Beams (NuFact10), October 20-25, 2010, Mumbai, India
Empicoris marmoreus Spinola 1837
Creators: name: Fernandes, José Antônio Marin
name: Grazia, Jocélia
Publisher: name: Zenodo
Year: 2006
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Pentatomidae
Empicoris
Empicoris marmoreus

description: Empicorismarmoreus Spinola, 1837 - Insertae sedis e Species inquirenda Esta espécie foi removida de Antiteuchus pois o tipo não foiencontrado nacoleção do Museu Regionaledi Torino, Itália, onde estão depositados os tipos de Heteroptera de Spinola. A descrição original é bastante curta e geral, não permitindo sequer a inclusão da espécie em Antiteuchus.
description: Published as part of Fernandes, José Antônio Marin & Grazia, Jocélia, 2006, Revisão do gênero Antiteuchus Dallas (Heteroptera, Pentatomidae, Discocephalinae), pp. 165-231 in Revista Brasileira de Entomologia 50 (2) on page 230, DOI: 10.1590/S0085-56262006000200004, http://zenodo.org/record/3966045
description: {"references": ["Spinola, M. 1837 Essai sur les genres d'insectes apparentmants a l'ordre des Hemipteres, Lin. ou Rhyngotes, Fab. et a la section des Heteropteres, Dufour. Genoa, 383 p."]}
Large-Scale Collective Entity Matching
Creators: name: Rastogi, Vibhor
name: Dalvi, Nilesh
name: Garofalakis, Minos
Publisher: name: arXiv
Year: 2011
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: There have been several recent advancements in Machine Learning community on the Entity Matching (EM) problem. However, their lack of scalability has prevented them from being applied in practical settings on large real-life datasets. Towards this end, we propose a principled framework to scale any generic EM algorithm. Our technique consists of running multiple instances of the EM algorithm on small neighborhoods of the data and passing messages across neighborhoods to construct a global solution. We prove formal properties of our framework and experimentally demonstrate the effectiveness of our approach in scaling EM algorithms.
description: VLDB2011
Weak convergence for the minimal position in a branching random walk: a simple proof
Creators: name: Aidekon, Elie
name: Shi, Zhan
Publisher: name: arXiv
Year: 2010
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60J80

description: Consider the boundary case in a one-dimensional super-critical branching random walk. It is known that upon the survival of the system, the minimal position after $n$ steps behaves in probability like ${3\over 2} \log n$ when $n\to \infty$. We give a simple and self-contained proof of this result, based exclusively on elementary properties of sums of i.i.d. real-valued random variables.
description: corrected reference in introduction
Interaction between the intergalactic medium and central radio source in the NGC 4261 group of galaxies
Creators: name: O'Sullivan, Ewan
name: Worrall, Diana M.
name: Birkinshaw, Mark
name: Trinchieri, Ginevra
name: Wolter, Anna
name: Zezas, Andreas
name: Giacintucci, Simona
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Using observations from the Chandra and XMM-Newton X-ray observatories, we examine the interaction between the intra-group medium and central radio source in the nearby NGC 4261 galaxy group. We confirm the presence of cavities associated with the radio lobes and estimate their enthalpy to be ~2.4x10^58 erg. The mechanical power output of the jets is >=10^43 erg/s, at least a factor of 60 greater than the cooling luminosity in the region the lobes inhabit. We identify rims of compressed gas enclosing the lobes, but find no statistically significant temperature difference between them and their surroundings, suggesting that the lobe expansion velocity is approximately sonic (Mach<=1.05). The apparent pressure of the radio lobes, based on the synchrotron minimum energy density argument, is a factor of 5 lower than that of the intra-group medium. Pressure balance could be achieved if entrainment of thermal gas provided additional non-radiating particles in the lobe plasma, but the energy required to heat these particles would be ~20 per cent. of the mechanical energy output of the radio source. NGC 4261 has a relatively compact cool core, which should probably be categorised as a galactic corona. The corona is capable of fuelling the active nucleus for considerably longer than the inferred source lifetime, but can be only inefficiently heated by the AGN or conduction. The expansion of the radio lobes has affected the structure of the gas in the galaxy, compressing and moving the material of the corona without causing significant shock heating, and expelling gas from the immediate neighbourhood of the jets. We discuss the possible implications of this environment for the duration of the AGN outburst, and consider mechanisms which might lead to the cessation of nuclear activity.
description: Accepted for publication in MNRAS, 17 pages, 6 figures
Direct-write, focused ion beam-deposited,7 K superconducting C-Ga-O nanowire
Creators: name: Dhakal, Pashupati
name: McMahon, G.
name: Kirkpatrick, T.
name: Oh, J. I.
name: Naughton, M. J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We have fabricated C-Ga-O nanowires by gallium focused ion beam-induced deposition from the carbon-based precursor phenanthrene. The electrical conductivity of the nanowires is weakly temperature dependent below 300 K, and indicates a transition to a superconducting state below Tc = 7 K. We have measured the temperature dependence of the upper critical field Hc2(T), and estimate a zero temperature critical field of 8.8 T. The Tc of this material is approximately 40% higher than that of any other direct write nanowire, such as those based on C-W-Ga, expanding the possibility of fabricating direct-write nanostructures that superconduct above liquid helium temperatures
description: Accepted for APL