cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Langevin Dynamics simulations of a 2-dimensional colloidal crystal under confinement and shear
Creators: name: Wilms, D.
name: Virnau, P.
name: Sengupta, S.
name: Binder, K.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Langevin Dynamics simulations are used to study the effect of shear on a two-dimensional colloidal crystal confined by structured parallel walls. When walls are sheared very slowly, only two or three crystalline layers next to the walls move along with them, while the inner layers of the crystal are only slightly tilted. At higher shear velocities, this inner part of the crystal breaks into several pieces with different orientations. The velocity profile across the slit is reminiscent of shear-banding in flowing soft materials, where liquid and solid regions coexist; the difference, however, is that in the latter case the solid regions are glassy while here they are crystalline. At even higher shear velocities, the effect of the shearing becomes smaller again. Also the effective temperature near the walls (deduced from the velocity distributions of the particles) decreases again when the wall velocity gets very large. When the walls are placed closer together, thereby introducing a misfit, a structure containing a soliton staircase arises in simulations without shear. Introducing shear increases the disorder in these systems until no solitons are visible any more. Instead, similar structures like in the case without misfit result. At high shear rates, configurations where the incommensurability of the crystalline structure is compensated by the creation of holes become relevant.
Semi-leptonic $D_s^+$(1968) decays as a scalar meson probe
Creators: name: Fariborz, Amir H.
name: Jora, Renata
name: Schechter, Joseph
name: Shahid, M. Naeem
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The unusual multiplet structures associated with the light spin zero mesons have recently attracted a good deal of theoretical attention. Here we discuss some aspects associated with the possibility of getting new experimental information on this topic from semi-leptonic decays of heavy charged mesons into an isosinglet scalar or pseudoscalar plus leptons.
description: 11 pages, 4 figures
2D transport and screening in topological insulator surface states
Creators: name: Adam, S.
name: Hwang, E. H.
name: Sarma, S. Das
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study disorder effects on the surface states of the topological insulator Bi$_2$Se$_3$ close to the topologically protected crossing point. Close to charge neutrality, local fluctuations in carrier density arising from the random charged disorder in the environment result in electron and hole puddles that dominate the electronic properties of these materials. By calculating the polarizability of the surface state using the random phase approximation, and determining the characteristics of puddles using the self-consistent approximation, we find that band asymmetry plays a crucial role in determining experimentally measured quantities including the conductivity and the puddle autocorrelation length.
description: 5 pages, 4 Figures
Search for the standard model Higgs boson in the H to ZZ to ll tau tau decay channel in pp collisions at sqrt(s)=7 TeV
Creators: name: The CMS Collaboration
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A search is reported for the standard model Higgs boson in the decay mode H to ZZ to tau plus lepton pairs, where the leptons are either electrons or muons, in proton-proton collisions at sqrt(s)=7 TeV, corresponding to an integrated luminosity of 4.7 inverse femtobarn collected with the CMS detector at the LHC. No evidence is found for a significant deviation from the background expectation. An upper limit four to twelve times larger than the predicted value is set at 95% confidence level for the product of the standard model Higgs boson production cross section and decay branching fraction in the mass range 190 < m(H) < 600 GeV.
description: Submitted to JHEP
The effects of green energy policies on innovation
Creators: name: Prescott, Ryan
Publisher: name: University of British Columbia
Year: 2009

description: Over the last twenty years, climate change and energy stability have increasingly played a role in government policy. Innovation is a key ingredient to increased growth while achieving climatic goals. The policy paths taken by different countries have been extremely diverse. What effects do these policies have on innovation and what policies are best at encouraging the market? This thesis uses a theoretical model to examine the effect that different policies have on innovation and to empirically test a series of hypotheses obtained from the model. Both the theoretical and empirical results support the hypothesis of a “home bias”, whereby innovation in domestic markets is impacted more than innovation in world markets when a domestic policy is initiated. A second result is that mandatory renewable energy minimum levels for power companies have relatively strong impacts on installed wind capacity. In general, a country’s wind capacity is determined by both economic and non-economic considerations.
title: Integration und Optimierung optoelektronischer Sensoren in Standard-CMOS-Prozessen
title: Integration und Optimierung optoelektronischer Sensoren in Standard-CMOS-Prozessen
titleType: AlternativeTitle
Creators: name: Martiny, Ingo
Publisher: name: TUHH Universitätsbibliothek
Year: 1999
Subjects: subject: Standard-CMOS-Prozesse, optoelektronischer Sensoren
subject: Standard-CMOS-Process
subject: Standard-CMOS-Prozesse
subject: optoelektronischer Sensoren

description: Die Integration von optischen Sensoren und der dazugehörigen Signalverarbeitung auf einem Siliziumchip bietet dem Anwender viele technische und wirtschaftliche Vorteile. Insbesondere lassen sich damit Bildaufnehmer realisieren mit hohem Kontrastumfang und sehr schneller Bildauswertung. Allerdings ist der Entwurfsaufwand größer und die Flexibilität geringer als bei der Anwendung getrennter Komponenten für die Bildwandlung und die Signalverarbeitung. Insbesondere ruft das einstrahlende Licht in abgeschatteten Teilen der integrierten Schaltung unerwünschte Effkte hervor. Diese Effekte sind zwar bekannt, aber es werden kaum effiziente Wege vorgeschlagen diese Störungen zu unterdrücken. Diese Effekte werden in der vorliegenden Arbeit theoretisch aufgearbeitet, und es werden verschiedene Ansätze gezeigt diese Störungen zu unterbinden. Für die Störunterdrückung werden realisierte, zum Teil neue Maßnahmen mit den gewonnenen Meßergebnissen vorgestellt. Bei der Betrachtung der integrierten Phototransistoren wird gezeigt, daß der Emitter möglichst klein sein sollte, um einen maximalen Wirkungsgrad zu erreichen. Diese Aussage war auf Grund der Literatur nicht zu erwarten. Die Stärke der integrierten optisch-elektrischen Wandler liegt in der anschließenden, zusammen mit den Sensoren auf einem Chip integrierten Signalverarbeitung. Es werden für die verschiedenen Anforderungen optimierte, teilweise neu entwickelte Schaltungen vorgestellt. Optische Aspekte werden in dem Kapitel über die Abschwächung des Lichtes auf dem Weg bis zur Oberfläche des Siliziums angesprochen. Dabei wird auch ein im Rahmen dieser Arbeit entwickeltes Verfahren vorgestellt, mit dem aus der Messung der spektralen Empfindlichkeit der Photodioden die Dicke der Deckschichten auf dem Silizium bestimmt werden kann. Den Abschluß der Arbeit bildet neben den Betrachtungen über die möglichen Gehäuseformen ein Anhang mit Hinweisen zur Umrechnung physikalischer Halbleiterparameter in elektrische Größen, mit dem Vergleich zwischen radiometrischen und photometrischen Größen und mit der Beschreibung der verwendeten Meßaufbauten.
Oxidative stress compromises vasomotor function of the thoracic aorta in Marfan Syndrome
Creators: name: Yang, Huei-Hsin Clarice
Publisher: name: University of British Columbia
Year: 2009

description: Introduction: Marfan syndrome is an autosomal dominant connective tissue disorder that causes life-threatening cardiovascular complications such as thoracic aortic dilatation and aneurysm. We have demonstrated that Marfan syndrome compromises contractile function of the aorta and impairs nitric oxide-mediated relaxation. We hypothesize that oxidative stress impairs contractility and endothelium-dependent relaxation in the thoracic aorta of Marfan mice. Methods: Adrenergic contractions and cholinergic relaxations of thoracic aorta from mice heterozygous for FBN1 allele (Fbn1C¹⁰³⁹G/+ , n=40; age=3,6,9 months), a well-defined model of Marfan syndrome, were compared with those from control littermates (n=40). Results: At 3 and 6 months, oxidative stress, as indicated by the plasma 8-isoprostane level, was 50% greater in the Marfan group than in the control. In 9 months old Marfan mice, the depressed phenylephrine-induced contraction was normalized by the preincubation of superoxide dismutase (SOD) which increased the maximal contractile response (Emax) and pEC₅₀ for phenylephrine-stimulated contraction by 91% and 2.75-fold. The compromised endothelial function was also restored by SOD which increased the sensitivity to acetylcholine by 10.7 and 12.3-fold at 3 and 6 months, respectively. Such improvement was absent in the controls. In 9 months old Marfan mice, the phenylephrine-contraction was potentiated 141% by 1400W, an inducible nitric oxide synthase (iNOS) inhibitor. The pEC₅₀ was normalized by 1400W and allopurinol, an inhibitor of xanthine oxidase. In the same group, both Emax and pEC₅₀ of acetyicholine was normalized by apocynin, an inhibitor of NAD(P)H oxidase. Protein expression of SOD was decreased at 3 and 9 months in the Marfan group, whereas expression of xanthine oxidase, iNOS, gp9lphox, p47phox and p67phox, the subunits of NAD(P)H oxidase, was all increased. Conclusions: The compromised vasomotor function in Marfan thoracic aorta could be associated with oxidative stress resulting from decreased expression of SOD and increased expression of iNOS, xanthine oxidase, and NAD(P)H oxidase.
Diversity in the Phoenix Universe
Creators: name: Lehners, Jean-Luc
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: It has recently been argued by Copeland et al. that in eleven dimensions two orbifold planes can collide and bounce in a regular way, even when the bulk metric is perturbed away from Milne spacetime to a Kasner solution. In this paper, we point out that as a consequence the global "phoenix" structure of the cyclic universe is significantly enriched. Spatially separated regions, with different density fluctuation amplitudes as well as different non-gaussian characteristics, are all physically realized. Those regions containing by far the most structure are specified by a fluctuation amplitude of Q ~ 10^{-4.5} and local non-gaussianity parameters f_{NL} ~ O(+/- 10) and g_{NL} ~ O(-10^3), in agreement with current observations.
description: 20 pages, 3 figures
Fault-Tolerant Aggregation: Flow-Updating Meets Mass-Distribution
Creators: name: Almeida, Paulo S.
name: Baquero, Carlos
name: Farach-Colton, Martin
name: Jesus, Paulo
name: Mosteiro, Miguel A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: Flow-Updating (FU) is a fault-tolerant technique that has proved to be efficient in practice for the distributed computation of aggregate functions in communication networks where individual processors do not have access to global information. Previous distributed aggregation protocols, based on repeated sharing of input values (or mass) among processors, sometimes called Mass-Distribution (MD) protocols, are not resilient to communication failures (or message loss) because such failures yield a loss of mass. In this paper, we present a protocol which we call Mass-Distribution with Flow-Updating (MDFU). We obtain MDFU by applying FU techniques to classic MD. We analyze the convergence time of MDFU showing that stochastic message loss produces low overhead. This is the first convergence proof of an FU-based algorithm. We evaluate MDFU experimentally, comparing it with previous MD and FU protocols, and verifying the behavior predicted by the analysis. Finally, given that MDFU incurs a fixed deviation proportional to the message-loss rate, we adjust the accuracy of MDFU heuristically in a new protocol called MDFU with Linear Prediction (MDFU-LP). The evaluation shows that both MDFU and MDFU-LP behave very well in practice, even under high rates of message loss and even changing the input values dynamically.
description: 18 pages, 5 figures, To appear in OPODIS 2011
title: La sfida del job crafting
Creators: name: Berdicchia, Domenico
name: Masino, Giovanni
Publisher: name: TAO Digital Library
Year: 2023

description: The concept of job crafting refers to behaviors through which workers, at all levels, proactively change or reshape some significant aspects of their job to make it more coherent to their preferences, attitudes, abilities and needs. In this volume, the authors review two decades of theoretical and empirical research on job crafting. Furthermore, they examine some recent wider organizational and social trends, such as the threat of new advanced technologies for current jobs and the increasingly widespread aspiration for more independent and meaningful work, while reflecting on the potential advantages of facilitating and encouraging job crafting in a world of work characterized by such changes. Finally, the authors identify some key challenges that job crafting studies will have to face in the near future in order to make job crafting more practically relevant for work organization and human resource management.
Completeness is determined by any non-algebraic trajectory
Creators: name: Bustinduy, Alvaro
name: Giraldo, Luis
Publisher: name: arXiv
Year: 2012
Subjects: subject: Complex Variables (math.CV)
subject: Algebraic Geometry (math.AG)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 32M25, 32L30, 32S65

description: It is proved that any polynomial vector field in two complex variables which is complete on a non-algebraic trajectory is complete.
description: 20 pages. To appear in Advances in Mathematics
An exact adaptive test with superior design sensitivity in an observational study of treatments for ovarian cancer
Creators: name: Rosenbaum, Paul R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: A sensitivity analysis in an observational study determines the magnitude of bias from nonrandom treatment assignment that would need to be present to alter the qualitative conclusions of a na\"ıve analysis that presumes all biases were removed by matching or by other analytic adjustments. The power of a sensitivity analysis and the design sensitivity anticipate the outcome of a sensitivity analysis under an assumed model for the generation of the data. It is known that the power of a sensitivity analysis is affected by the choice of test statistic, and, in particular, that a statistic with good Pitman efficiency in a randomized experiment, such as Wilcoxon's signed rank statistic, may have low power in a sensitivity analysis and low design sensitivity when compared to other statistics. For instance, for an additive treatment effect and errors that are Normal or logistic or $t$-distributed with 3 degrees of freedom, Brown's combined quantile average test has Pitman efficiency close to that of Wilcoxon's test but has higher power in a sensitivity analysis, while a version of Noether's test has poor Pitman efficiency in a randomized experiment but much higher design sensitivity so it is vastly more powerful than Wilcoxon's statistic in a sensitivity analysis if the sample size is sufficiently large.
description: Published in at http://dx.doi.org/10.1214/11-AOAS508 the Annals of Applied Statistics (http://www.imstat.org/aoas/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Diquarks in the nilpotency expansion of QCD and their role at finite chemical potential
Creators: name: Caracciolo, Sergio
name: Palumbo, Fabrizio
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We assume that the most important quark correlations are pairwise at all baryon densities. We introduce correlated pairs by means of Bogoliubov transformations which are functions of time and spatial gauge fields, in the formalism of the transfer matrix with lattice regularization. The dependence on time and gauge fields allows us to enforce gauge invariance and other symmetries term by term in the transformed quantities. The resulting action should be suitable for the description of multiquark mesons and baryons as states of a quark and a diquark. We derive the quark contribution to the free energy at finite chemical potential in a certain approximation. Its expression cannot be evaluated analytically, but it has a definite sign.
description: 36 pages
On Slant Helices and General Helices in Euclidean n-Space
Creators: name: Yayli, Yusuf
name: Ziplar, Evren
Publisher: name: arXiv
Year: 2011
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53A04, 53B25, 53C40, 53C50

description: In this paper, in Euclidean n -space, we investigate the relation between slant helices and spherical helices. Moreover, in E n, we show that a slant helix and the tangent indicatrix of the slant helix have the same axis (or direction). Also, we give the important relations between slant helices, spherical helices in E n and geodesic curves on a helix hypersurface in E n.
Magnetoresistance measurements of Graphene at the Charge Neutrality Point
Creators: name: Zhao, Yue
name: Cadden-Zimansky, Paul
name: Ghahari, Fereshte
name: Kim, Philip
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report on transport measurements of the insulating state that forms at the charge neutrality point of graphene in a magnetic field. Using both conventional two-terminal measurements, sensitive to bulk and edge conductance, and Corbino measurements, sensitive only to the bulk conductance, we observed a vanishing conductance with increasing magnetic fields. By examining the resistance changes of this insulating state with varying perpendicular and in-plane fields, we probe the spin-active components of the excitations in total fields of up to 45 Tesla. Our results indicate that ν=0 quantum Hall state in single layer graphene is not spin polarized.
Belokurov-Usyukina loop reduction in non-integer dimension
Creators: name: Gonzalez, Ivan
name: Kondrashuk, Igor
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Belokurov-Usyukina loop reduction method has been proposed in 1983 to reduce a number of rungs in triangle ladder-like diagram by one. The disadvantage of the method is that it works in d=4 dimensions only and it cannot be used for calculation of amplitudes in field theory in which we are required to put all the incoming and outgoing momenta on shell. We generalize the Belokurov-Usyukina loop reduction technique to non-integer d=4-2e dimensions. In this paper we show how a two-loop triangle diagram with particular values of indices of scalar propagators in the position space can be reduced to a combination of three one-loop scalar diagrams. It is known that any one-loop massless momentum integral can be presented in terms of Appell's function F_4. This means that particular diagram considered in the present paper can be represented in terms of Appell's function F_4 too. Such a generalization of Belokurov-Usyukina loop reduction technique allows us to calculate that diagram by this method exactly without decomposition in terms of the parameter e.
description: 6 pages, 3 figures
Viscosity-entropy ratio of the unitary Fermi gas from zero-temperature elementary excitations
Creators: name: Salasnich, Luca
name: Toigo, Flavio
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We investigate the low-temperature behavior of the ratio between the shear viscosity ηand the entropy density s in the unitary Fermi gas by using a model based on the zero-temperature spectra of both bosonic collective modes and fermonic single-particle excitations. Our theoretical curve of η/s as a function of the temperature T is in qualitative agreement with the experimental data of trapped ultracold 6Li atomic gases. We find the minimum value η/s \simeq 0.44 (in units of \hbar/k_B) at the temperature T/T_F \simeq 0.27, with T_F the Fermi temperature.
description: 10 pages, 2 figures, prepared for the special issue "Correlations in Quantum Gases" of J. Low Temp, Phys
External field effect on quantum features of radiation emitted by a QW in a microcavity
Creators: name: Sete, Eyob A.
name: Das, Sumanta
name: Eleuch, H.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider a semiconductor quantum well in a microcavity driven by coherent light and coupled to a squeezed vacuum reservoir. By systematically solving the pertinent quantum Langevin equations in the strong coupling and low excitation regimes, we study the effect of exciton-photon detuning, external coherent light, and the squeezed vacuum reservoir on vacuum Rabi splitting and on quantum statistical properties of the light emitted by the quantum well. We show that the exciton-photon detuning leads to a shift in polariton resonance frequencies and a decrease in fluorescence intensity. We also show that the fluorescent light exhibits quadrature squeezing which predominately depends on the exciton-photon detuning and the degree of the squeezing of the input field.
description: 8 pages, 10 figures
Volumes of Zariski chambers
Creators: name: Bauer, Thomas
name: Schmitz, David
Publisher: name: arXiv
Year: 2012
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: Primary 14C20, Secondary 14J26

description: Zariski chambers are natural pieces into which the big cone of an algebraic surface decomposes. They have so far been studied both from a geometric and from a combinatorial perspective. In the present paper we complement the picture with a metric point of view by studying a suitable notion of chamber sizes. Our first result gives a precise condition for the nef cone volume to be finite and provides a method for computing it inductively. Our second result determines the volumes of arbitrary Zariski chambers from nef cone volumes of blow-downs. We illustrate the applicability of this method by explicitly determining the chamber volumes on Del Pezzo and other anti-canonical surfaces.
Court rulings as evidence for social engineering research
Creators: name: Pham, Ngoc-Minh Michal
Publisher: name: TUHH Universitätsbibliothek
Year: 2015
Subjects: subject: Security in Distributed Applications
subject: Social Engineering
subject: Court Ruling
subject: Analysis
subject: Phishing
classificationCode: 004
subject: Informatik

description: Im diesen Paper geht um die Frage, ob Gerichtsurteile als Informationsquelle für Forschung über Social Engineering verwendet werden kann. Methodik für das Beschaffen des Materials und Analyse werden hier aufgegriffen und die Ergebnisse der Analysis werden zusammengefasst.
description: This paper is about the question whether court rulings can be used as evidence for Social Engineering research. It goes into the methodology of acquiring and analysing the material and presents the results.
High-Tc superconductivity and antiferromagnetism in multilayer cuprates: 63Cu- and 19F-NMR on five-layer Ba2Ca4Cu5O10(F,O)2
Creators: name: Shimizu, Sunao
name: Tabata, Shin-ichiro
name: Iwai, Shiho
name: Mukuda, Hidekazu
name: Kitaoka, Yoshio
name: Shirage, Parasharam M.
name: Kito, Hijiri
name: Iyo, Akira
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report systematic Cu- and F-NMR measurements of five-layered high-Tc cuprates Ba2Ca4Cu5O10(F,O)2. It is revealed that antiferromagnetism (AFM) uniformly coexists with superconductivity (SC) in underdoped regions, and that the critical hole density pc for AFM is ~ 0.11 in the five-layered compound. We present the layer-number dependence of AFM and SC phase diagrams in hole-doped cuprates, where pc for n-layered compounds, pc(n), increases from pc(1) ~ 0.02 in LSCO or pc(2) ~ 0.05 in YBCO to pc(5) ~ 0.11. The variation of pc(n) is attributed to interlayer magnetic coupling, which becomes stronger with increasing n. In addition, we focus on the ground-state phase diagram of CuO2 planes, where AFM metallic states in slightly doped Mott insulators change into the uniformly mixed phase of AFM and SC and into simple d-wave SC states. The maximum Tc exists just outside the quantum critical hole density, at which AFM moments on a CuO2 plane collapse at the ground state, indicating an intimate relationship between AFM and SC. These characteristics of the ground state are accounted for by the Mott physics based on the t-J model; the attractive interaction of high-Tc SC, which raises Tc as high as 160 K, is an in-plane superexchange interaction Jin (~ 0.12 eV), and the large Jin binds electrons of opposite spins between neighboring sites. It is the Coulomb repulsive interaction U ~ (> 6 eV) between Cu-3d electrons that plays a central role in the physics behind high-Tc phenomena.
description: 14 pages, 12 figures
g9/2 nuclei and neutron-proton interaction
Creators: name: Coraggio, L.
name: Covello, A.
name: Gargano, A.
name: Itaco, N.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We have performed shell-model calculations for nuclei below 100Sn, focusing attention on the two N=Z nuclei 96Cd and 92Pd, the latter having been recently the subject of great experimental and theoretical interest. We have considered nuclei for which the 0g9/2 orbit plays a dominant role and employed a realistic low-momentum two-body effective interaction derived from the CD-Bonn nucleon-nucleon potential. This implies that no phenomenological input enters our effective Hamiltonian. The calculated results for 92Pd are in very good agreement with the available experimental data, which gives confidence in our predictions for 96Cd. An analysis of the wave functions of both 96Cd and 92Pd is performed to investigate the role of the isoscalar spin-aligned coupling.
description: 7 pages, 6 figures, 4 tables, to be published in Physical Review C
Thermal segregation of intruders in the Fourier state of a granular gas
Creators: name: Brey, J. Javier
name: Khalil, Nagi
name: Dufty, James W.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A low density binary mixture of granular gases is considered within the Boltzmann kinetic theory. One component, the intruders, is taken to be dilute with respect to the other, and thermal segregation of the two species is described for a special exact solution to the Boltzmann equation. This solution has a macroscopic hydrodynamic representation with a constant temperature gradient and is referred to as the Fourier state. The thermal diffusion factor characterizing conditions for segregation is calculated without the usual restriction to Navier-Stokes hydrodynamics. Molecular dynamics simulations are reported for comparison with the results for this idealized Fourier state.
Asteroseismology of old open clusters with Kepler: direct estimate of the integrated RGB mass loss in NGC6791 and NGC6819
Creators: name: Miglio, A.
name: Brogaard, K.
name: Stello, D.
name: Chaplin, W. J.
name: D'Antona, F.
name: Montalban, J.
name: Basu, S.
name: Bressan, A.
name: Grundahl, F.
name: Pinsonneault, M.
name: Serenelli, A. M.
name: Elsworth, Y.
name: Hekker, S.
name: Kallinger, T.
name: Mosser, B.
name: Ventura, P.
name: Bonanno, A.
name: Noels, A.
name: Silva-Aguirre, V.
name: Szabo, R.
name: Li, J.
name: McCauliff, S.
name: Middour, C. K.
name: Kjeldsen, H.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Mass loss of red giant branch (RGB) stars is still poorly determined, despite its crucial role in the chemical enrichment of galaxies. Thanks to the recent detection of solar-like oscillations in G-K giants in open clusters with Kepler, we can now directly determine stellar masses for a statistically significant sample of stars in the old open clusters NGC6791 and NGC6819. The aim of this work is to constrain the integrated RGB mass loss by comparing the average mass of stars in the red clump (RC) with that of stars in the low-luminosity portion of the RGB (i.e. stars with L
description: 13 pages, 7 figures, accepted for publication in MNRAS
Genotyping by nanopore force spectroscopy : method development and evaluation for clinical diagnostics
Creators: name: Wiggin, Matthew John
Publisher: name: University of British Columbia
Year: 2009

description: Clinical diagnostic genotyping has the potential to predict an individual’s response to a prescribed drug, and could thus dramatically improve drug efficacy and reduce adverse drug interactions. However, widespread implementation of clinical diagnostic genotyping is currently prevented by a lack of fast, simple clinical genotyping platforms. This thesis describes the development of a new genotyping technique based on nanopore force spectroscopy (NFS) which may fulfill this need, and serves as a feasibility study for further development towards a commercial instrument. The thesis begins by describing NFS, which is a novel, general technique used to detect bio-molecules and characterize their physical interactions with one another. NFS is applied to base-calling by forming a duplex between an engineered single-stranded DNA probe and a DNA sample, and then measuring the dissociation rate under an applied force. The dissociation rate is shown to be extremely sensitive to duplex sequence homology: tests using purified synthetic DNA fourteen bases long demonstrate that even a single base mismatch can increase the dissociation rate over 100-fold. This high specificity, combined with the sensitivity of nanopore detection, allows a base-call to be made from as few as 100 single molecule dissociation events involving the target. Based on these results, it is estimated that with further development, NFS genotyping could be possible from purified, unlabeled genomic DNA in less than 1 hour, without requiring PCR amplification. These characteristics would make NFS extremely attractive as a clinical diagnostic genotyping technology. Further development is still required to produce an instrument capable of testing genomic DNA. However, based on the success of tests so far, this thesis concludes that further development of such an instrument is clearly warranted, especially given its potential impact on human health.
Single crystals of DPPH grown from diethyl ether and carbon disulfide solutions - Crystal structures, IR, EPR and magnetization studies
Creators: name: Zilic, Dijana
name: Pajic, Damir
name: Juric, Marijana
name: Molcanov, Kresimir
name: Rakvin, Boris
name: Planinic, Pavica
name: Zadro, Kreso
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Single crystals of the free radical 2,2-diphenyl-1-picrylhydrazyl (DPPH) obtained from diethyl ether (ether) and carbon disulfide (CS2) were characterized by the X-ray diffraction, IR, EPR and SQUID magnetization techniques. The X-ray structural analysis and IR spectra showed that the DPPH form crystallized from ether (DPPH1) is solvent free, whereas that one obtained from CS2 (DPPH2) is a solvate of the composition 4DPPH.CS2. Principal values of the g-tensor were estimated by the X-band EPR spectroscopy at room and low (10 K) temperatures. Magnetization studies revealed the presence of antiferromagnetically coupled dimers in both types of crystals. However, the way of dimerization as well as the strength of exchange couplings are different in the two DPPH samples, which is in accord with their crystal structures. The obtained results improved parameters accuracy and enabled better understanding of properties of DPPH as a standard sample in the EPR spectrometry.
title: Handlungsfähigkeit in entgrenzten Verhältnissen
title: Action potence in unbound labour relations
titleType: AlternativeTitle
Creators: name: Nowak, Iris
name: Hausotter, Jette
name: Winker, Gabriele
Publisher: name: TUHH Universitätsbibliothek
Year: 2012
Subjects: subject: Vermarktlichung
subject: Ingenieurarbeit
subject: Subjektkonstruktionen, Intersektionalität
subject: Subjektwissenschaft
classificationCode: 70.00
subject: Sozialwissenschaften allgemein: Allgemeines
classificationCode: 71.00
subject: Soziologie: Allgemeines
subject: Arbeitswissenschaft
subject: Altenpflege
subject: Entgrenzung
subject: Handlungsfähigkeit

description: Der Bericht stellt Ergebnisse eines Forschungsprojekts zu subjektiven Verarbeitungsweisen von Altenpflegekräften sowie FacharbeiterInnen und IngenieurInnen eines Industrieunternehmens dar. Es wird gezeigt, wie Erwerbstätige in diesen Bereichen mit Überlastungen und Unsicherheiten im Lebenszusammenhang umgehen. Ziel ist es, die subjektiven Gründe für die meist individualisierten Umgangsweisen sowie deren Grenzen und Brüche aufzuzeigen. Hierin wird zunächst der Ansatz der intersektionalen Mehrebenenanalyse nach Winker/Degele mit dem Begriff der Handlungsfähigkeit aus der Kritischen Psychologie (Holzkamp u.a.) verbunden. Sodann wird der Entgrenzungsbegriff dahingehend erweitert, dass mit ihm auch nach den Wechselwirkungen zwischen verschiedenen Lebensbereichen gefragt werden kann und die zugespitzte Selbststeuerung auch in der Reproduktionssphäre und hiermit einhergehende Verschiebungen in hegemonialen Geschlechterverhältnissen in den Blick genommen werden. Schließlich werden Vermarktlichungsprozesse in Industrieunternehmen und in der stationären Altenpflege dargestellt und wesentliche Widerspruchslinien herausgearbeitet. Auf dieser Basis werden 28 Interviews mit Beschäftigten in beiden Bereichen ausgewertet. Im Ergebnis teilen wir die vorgefundenen Subjektkonstruktionen in vier Gruppen ein: Erstens jene, die sich aktiv und zufrieden in die gegebenen Verhältnisse einpassen. Zweitens jene, die im Konflikt mit belastenden Anforderungen ihre gewünschte Lebensweise verwirklichen. Drittens jene, deren individuelles Handeln sich zwischen Grenzziehung und Ohnmacht bewegt. An einer vierten Gruppe werden Perspektiven, aber auch Problematiken von institutionalisierten kollektiven Handlungsformen im Betrieb deutlich.
Exact Nonlinear Excitations in Double-Degenerate Plasmas
Creators: name: Akbari-Moghanjoughi, M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: In this work we use the conventional hydrodynamics (HD) formalism and incorporate the Chew-Goldberger-Low (CGL) double-adiabatic theory to evaluate the nonlinear electrostatic ion excitations in double-degenerate (electron spin-orbit degenerate) magnetized quantum plasmas. Based on the Sagdeev pseudopotential method an exact general pseudopotential is calculated which leads to the allowed Mach-number range criteria for such localized density structures in an anisotropic magnetized plasma. We employ the criteria on the Mach-number range for diverse magnetized quantums plasma with different equations of state (EoS). It is remarked that various plasma fractional parameters such as the system dimensionality, ion-temperature, relativistic-degeneracy, Zeeman-energy, and plasma composition are involved in the stability of an obliquely propagating nonlinear ion-acoustic wave in a double-degenerate quantum plasma. Current study is most appropriate for nonlinear wave analysis in the dense astrophysical magnetized plasma environments such as white-dwarfs and neutron-star crusts where the strong magnetic fields can be present.
X-ray view of IC348 in the light of an updated cluster census
Creators: name: Stelzer, B.
name: Preibisch, T.
name: Alexander, F.
name: Mucciarelli, P.
name: Flaccomio, E.
name: Micela, G.
name: Sciortino, S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We study the properties of the coronae of the low-mass stars in the young (~2-3Myr), nearby (~310pc) open cluster IC348 combining X-ray and optical/infrared data. The four existing Chandra observations of IC348 are merged, thus providing a deeper and spatially more complete X-ray view than previous X-ray studies of the cluster. We have compiled a comprehensive catalog of IC348 members taking into account recent updates to the cluster census. Our data collection comprises fundamental stellar parameters, infrared excess indicating the presence of disks, Halpha emission as a tracer of chromospheric emission or accretion and mass accretion rates. We have detected 290 X-ray sources in four merged Chandra exposures, of which 187 are associated with known cluster members. Only four of the X-ray sources are brown dwarfs (spectral type M6 and later). The detection rate is highest for diskless Class III stars and increases with stellar mass. This may be explained with higher X-ray luminosities for higher mass and later evolutionary stage that is evident in the X-ray luminosity functions. In particular, we find that for the lowest examined masses (0.1-0.25 Msun) there is a difference between the X-ray luminosity functions of accreting and non-accreting stars (classified on the basis of their Halpha emission strength) as well as those of disk-bearing and diskless stars (classified on the basis of the slope of the spectral energy distribution). These differences disappear for higher masses. This is related to our finding that the L_x/L_bol ratio is non-constant across the mass/luminosity sequence of IC348 with a decrease towards lower luminosity stars. Our analysis of an analogous stellar sample in the Orion Nebula Cluster suggests that the decline of L_x/L_ bol for young stars at the low-mass end of the stellar sequence is likely universal.
description: Accepted for publication in Astronomy & Astrophysics
DeepHullNet
Creators: name: None
Publisher: name: figshare
Year: 2023
Subjects: Planning and decision making

description: This project is the code for the study: DeepHullNet: A Deep Learning Approach to Solving the Convex Hull and Concave Hull Problems with Transformer. 1. You can read the README.md to quick run the DeepHullNet. 2. I have provide the trained models in the checkpoint files and you can run the DeepHullNet_visual.ipynb to quick start. 3. You can also visit our github https://github.com/CO-RL/DeepHullNet to quickly implement DeepHullNet. Thank you for your attention！
Origin of the peripheral rim, Redwater Reef, Alberta
Creators: name: Mossop, Grant D.
Publisher: name: University of Calgary
Year: 1971
Subjects: subject: QE 665 M66 1971
subject: Geology, Stratigraphic - Devonian
subject: Geology - Alberta - Redwater area
subject: Reefs

description: Bibliography: p. 77-81.
description: Bound copy.
description: The Upper Devonian Redwater atoll of the Alberta subsurface exhibits a pronounced peripheral raised rim around its entire circumference. The relief of the rim relative to the inset central lagoonal area averages 110 feet. Isopachs from some overlying shale horizons to the reef, and paleoecologic studies, indicate that at the time of deposition the lagoonal area stood about 40 feet above the periphery of the complex. Secondary downwarp of the lagoon relative to the rim thus totals 150 feet. First order trend surface analysis on Devonian and Cretaceous horizons above the reef show that the peripheral rim developed in two discrete episodes. The first is reflected only in horizons below the Pre-Cretaceous unconformity and accounts for about 95 feet of differential downwarp. The remaining 55 feet of relief between rim and lagoon developed as a result of events late in the Cretaceous. Both of these episodes of differential depression are related to sediment loading and its effect upon stylolitization in the reef carbonates. Data on stylolite amplitudes and distribution, collected through the analysis of Redwater borehole cores indicates that compaction of rim carbonates averages 13% while the lagoonal carbonates underwent 24% volume reduction. In terms of feet, the rim compacted by 174 feet and the lagoon by 319 feet. The resultant 145 feet of measured differential thickness reduction through stylolitization is thus essentially con­sistent with the observed 150 feet of differential downwarp. Previously proposed methods of secondary lagoonal downwarp (e.g. downfaulting of the lagoon) are not required.
Study of the local field distribution on a single-molecule magnet-by a single paramagnetic crystal; a DPPH crystal on the surface of an Mn12-acetate crystal
Creators: name: Zilic, Dijana
name: Rakvin, Boris
name: Dalal, Naresh S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The local magnetic field distribution on the subsurface of a single-molecule magnet crystal, SMM, above blocking temperature (T >> Tb) detected for a very short time interval (~ 10-10 s), has been investigated. Electron Paramagnetic Resonance (EPR) spectroscopy using a local paramagnetic probe was employed as a simple alternative detection method. An SMM crystal of [Mn12O12(CH3COO)16(H2O)4].2CH3COOH.4H2O (Mn12-acetate) and a crystal of 2,2- diphenyl-1-picrylhydrazyl (DPPH) as the paramagnetic probe were chosen for this study. The EPR spectra of DPPH deposited on Mn12-acetate show additional broadening and shifting in the magnetic field in comparison to the spectra of the DPPH in the absence of the SMM crystal. The additional broadening of the DPPH linewidth was considered in terms of the two dominant electron spin interactions (dipolar and exchange) and the local magnetic field distribution on the crystal surface. The temperature dependence of the linewidth of the Gaussian distribution of local fields at the SMM surface was extrapolated for the low temperature interval (70-5 K).
Hidden assumptions in the derivation of the Theorem of Bell
Creators: name: Hess, Karl
name: De Raedt, Hans
name: Michielsen, Kristel
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: John Bell's inequalities have already been considered by Boole in 1862. Boole established a one-to-one correspondence between experimental outcomes and mathematical abstractions of his probability theory. His abstractions are two-valued functions that permit the logical operations AND, OR and NOT and are the elements of an algebra. Violation of the inequalities indicated to Boole an inconsistency of definition of the abstractions and/or the necessity to revise the algebra. It is demonstrated in this paper, that a violation of Bell's inequality by Einstein-Podolsky-Rosen type of experiments can be explained by Boole's ideas. Violations of Bell's inequality also call for a revision of the mathematical abstractions and corresponding algebra. It will be shown that this particular view of Bell's inequalities points toward an incompleteness of quantum mechanics, rather than to any superluminal propagation or influences at a distance.
Modelling the recovery of old-growth attributes in coastal western hemlock forests following management and natural disturbances
Creators: name: Gerzon, Michael
Publisher: name: University of British Columbia
Year: 2009

description: Since the early 1900’s logging activities in coastal British Columbia (BC) have reduced the extent of old-growth forest area from its historical distribution of 90% to approximately 55% of the forest landbase at present. Presently, the province employs an age threshold approach to identify old-growth forest throughout BC. While this approach allows for a rapid inventory assessment, there are several factors that limit its efficacy: the age-based classification method does not capture the gradual development of old-growth features, the development of old-growth structure is not always well correlated with age, and it does not work well in multi-aged stands created through variable retention (VR) harvesting. The objectives of this thesis were to: 1) develop a set of structural attributes for assessing the old-growth condition based on a chronosequence analysis, 2) evaluate capability of the FORECAST model to project the temporal trends in structural development observed in the chronosequence, and 3) employ FORECAST to assess the implications of alternative dispersed retention scenarios on the recovery of old-growth structural attributes. A chronosequence study was established including 33 sites varying in age from 60 to 300+ years on Vancouver Island. Data collection from the sites included stand structural attributes, vegetation, soil properties, disturbance history, and stand age. A set of attributes representing stand structure was developed that showed clear trends in the recovery of old-growth forest characteristics. The forest growth model, FORECAST, was evaluated against the chronosequence in terms of its ability to project patterns of development of old-growth structure. The model evaluation showed that FORECAST could be employed to project the impact of different silviculture systems on temporal trends in the development of old-growth conditions for the vh and vm subzones of the coastal western hemlock zone in BC. The analysis of dispersed retention scenarios using FORECAST showed that VR can help to mitigate the effects of harvesting on the maintenance of old-growth structural attributes. The analysis also showed that starting condition prior harvesting influenced the outcome and that the time required for structural elements to recover to old-growth levels was generally not reduced with increasing levels of dispersed retention.