cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The ideal of the trifocal variety
Creators: name: Aholt, Chris
name: Oeding, Luke
Publisher: name: arXiv
Year: 2012
Subjects: subject: Algebraic Geometry (math.AG)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: Techniques from representation theory, symbolic computational algebra, and numerical algebraic geometry are used to find the minimal generators of the ideal of the trifocal variety. An effective test for determining whether a given tensor is a trifocal tensor is also given.
Über Singularitätendarstellungen und Kraftwirkungen bewegter Körper in inkompressibler Flüssigkeit
Creators: name: Eggers, Klaus
Publisher: name: TUHH Universitätsbibliothek
Year: 1960
Subjects: classificationCode: 52.00
subject: Maschinenbau, Energietechnik, Fertigungstechnik: Allgemeines

description: Über Singularitätendarstellungen und Kraftwirkungen bewegter Körper in inkompressibler Flüssigkeit
Role of the counsellor in Alberta high schools as perceived by counsellors, counsellor educators, and principals
Creators: name: Hengel, Helen
Publisher: name: University of Calgary
Year: 1970
Subjects: subject: LB 1620.5 H44 1970 Microfilm
subject: Personnel service in secondary education
subject: Student counselors
subject: Role expectation
subject: School superintendents and principals - Attitudes

description: Bibliography: p. 56-60.
description: In this research project, Warman's Counselling Appropriateness Checklist was administered to counsellors, counsellor educators, and principals of Alberta high schools in an effort to discover how these three groups perceived the role of the high school counsellor. Two additional questionnaires attempted to ascertain the actual role of the counsellor. Results indicated that all three groups differed significantly in their views of the appropriateness of problems concerning adjustment to self and others (ASO), and love, religion and morality (LRM) to be discussed in counselling interviews with students. Non-significant results were obtained regarding educational-vocational problems (EV). Principals considered the areas of ASO and LRM as only slightly appropriate, while counsellor educators rated them high. As their level of education and training increased, counsellors rated EV problems lower on the scale. Age and rural or urban setting made no significant difference in the counsellor's rated appropriateness of the three problem areas; sex, level of education and whether or not they had had a practicum as part of their training did make a difference. Counsellors of this province indicated no notable dissatisfaction with their assigned school duties; in fact, 74% said they felt they were able to do the things a counsellor should be doing and for which they were trained.
Vortex formation and instability in the left ventricle
Creators: name: Le, Trung
name: Sotiropoulos, Fotis
name: Coffey, Dane
name: Keefe, Daniel
Publisher: name: arXiv
Year: 2011
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We study the formation of the mitral vortex ring during early diastolic filling in a patient-specific left ventricle (LV) using direct numerical simulation. The geometry of the left ventricle is reconstructed from Magnetic Resonance Imaging (MRI) data of a healthy human subject. The left ventricular kinematics is modeled via a cell-based activation methodology, which is inspired by cardiac electro-physiology and yields physiologic LV wall motion. In the fluid dynamics videos, we describe in detail the three-dimensional structure of the mitral vortex ring, which is formed during early diastolic filling. The ring starts to deform as it propagates toward the apex of the heart and becomes inclined. The trailing secondary vortex tubes are formed as the result of interaction between the vortex ring and the LV wall. These vortex tubes wrap around the circumference and begin to interact with and destabilize the mitral vortex ring. At the end of diastole, the vortex ring impinges on the LV wall and the large-scale intraventricular flow rotates in clockwise direction. We show for the first time that the mitral vortex ring evolution is dominated by a number of vortex-vortex and vortex-wall interactions, including lateral straining and deformation of vortex ring, the interaction of two vortex tubes with unequal strengths, helicity polarization of vortex tubes and twisting instabilities of the vortex cores.
Electromagnetic modeling and optimization of through silicon vias
Creators: name: Dahl, David
Publisher: name: Shaker
Year: 2018
Subjects: subject: silicon
subject: integrated circuit
subject: electromagnetic fields
subject: electromagnetic modeling
subject: contour integral method
subject: interconnect modeling
classificationCode: 620
subject: Ingenieurwissenschaften

description: Die vorliegende Arbeit beschreibt die Simulation und den Entwurf von Durchkontaktierungen in Siliziumsubstraten (TSVs), wie sie in der Aufbau- und Verbindungstechnik für integrierte Schaltkreise Anwendung finden. Numerische Verfahren von vergleichsweise hoher numerischer Effizienz werden entwickelt und angewendet, um realistische Anordnungen mit großen Anzahlen von TSVs simulieren zu können. Die vorgestellten Methoden werden mit alternativen Ansätzen korreliert und aus Parametervariationen werden Designempfehlungen abgeleitet. Des Weiteren werden mehrere Messstrukturen mit TSVs entwickelt und Messergebnisse für diese mit Simulationsergebnissen verglichen.
description: This thesis presents the simulation and the design of vertical interconnects in silicon substrates known as through silicon vias (TSVs) which are applied as a component of 3D integration of integrated circuits. Numerical methods of comparably high efficiency are developed and applied in order to simulate the electromagnetic properties of large realistic arrays of TSVs. The proposed methods are correlated with alternative methods and parameter variations are carried out to derive design guidelines. Further, several test structures with TSVs are developed and the measurement results are correlated with the results from electromagnetic simulations.
Fiction as Reconstruction of History: Narratives of the Civil War in American Literature
Creators: name: Isensee, Reinhard
Publisher: name: Center for United States Studies, Halle (Saale)
Year: 2009
Subjects: American history
American literature
American culture

description: American studies journal; Vol. 53, No. 05, 2009. 2199-7268
description: Special Edition: Lincoln’s Legacy: Nation Building, Democracy, and the Question of Race and Civil Rights
The Social and Cultural Construction of Abraham Lincoln in U.S. Movies and on U.S. TV
Creators: name: Dean, John
Publisher: name: Center for United States Studies, Halle (Saale)
Year: 2009
Subjects: American history
American literature
American culture

description: American studies journal; Vol. 53, No. 06, 2009. 2199-7268
description: Special Edition: Lincoln’s Legacy: Nation Building, Democracy, and the Question of Race and Civil Rights
Heavy flavour and quarkonium at forward and central rapidity in p-p collisions with ALICE at LHC
Creators: name: Tieulent, Raphael
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Quarkonia and open heavy flavour production are crucial to study the properties of the nuclear matter at high energy densities and of the Quark Gluon Plasma (QGP). In proton-proton collisions at LHC, the measurement of their production cross-section will allow to test perturbative QCD calculations in a new energy regime and provide the baseline for measurements in heavy ion collisions. In the latter, as they experience the full evolution of the collision, heavy quarks are ideal probes to study the property of the system. During the 2010 campaign of the LHC, ALICE took proton-proton data at $\sqrt{s}$=7 TeV and Pb-Pb data at $\sqrt{s_{nn}}$=2.76 TeV. The first physics results on heavy flavors production in p-p collisions are presented combining hadronic and (semi-)leptonic channels, both at central and forward rapidity.
description: Presented on behalf of the ALICE Collaboration at the Cracow Epiphany Conference on the First Year of the LHC, Cracow, Poland, January 10-12, 2011
Critique of a model of social work
Creators: name: Bender, Fanda Yvonne
Publisher: name: University of Calgary
Year: 1971
Subjects: subject: HV 10.5 B42 1971
subject: Social work education
subject: Social service - Study and teaching
subject: University of Calgary. School of Social Welfare. Accreditation Manual

description: Bibliography: p. 79-83.
Bestimmung der Manövriereigenschaften aus den Bahnkurven freimanövrierender Schiffsmodelle
Creators: name: Oltmann, Peter
Publisher: name: TUHH Universitätsbibliothek
Year: 1978
Subjects: classificationCode: 52.00
subject: Maschinenbau, Energietechnik, Fertigungstechnik: Allgemeines

description: Bestimmung der Manövriereigenschaften aus den Bahnkurven freimanövrierender Schiffsmodelle
Adapting History and Literature into Movies
Creators: name: Dean, John
Publisher: name: Center for United States Studies, Halle (Saale)
Year: 2009
Subjects: American history
American literature
American culture

description: American studies journal; Vol. 53, No. 07, 2009. 2199-7268
description: Special Edition: Lincoln’s Legacy: Nation Building, Democracy, and the Question of Race and Civil Rights
An ultra-low power SAR ADC
Creators: name: Chang, Yin-Ting Melody
Publisher: name: University of British Columbia
Year: 2009

description: Wireless sensor networks are used in variety of applications including environmental monitoring, industrial control, healthcare, home automation, traffic control, and temperature and pressure monitoring systems. Many one-time use wireless micro sensor applications require ultra-low-power devices due to the limited energy capacity and lifetime of their small-size battery. Many sensor nodes require an analog-to-digital converter (ADC) to convert the analog output of the sensor to digital for storage and/or further processing. In this work, an 8-bit ultra-low-power successive approximation register (SAR) ADC is presented that operates from a low power supply voltage of 1V. The circuit is implemented in a 0.18 μm bulk CMOS technology without using any 10W-VT devices. In terms of active components, this ADC requires one comparator, 18 D flip-flops, several switches, and one voltage doubler. The ADC achieves an effective number of bits of 7, while operating with a sampling rate of 100kS/s and consuming 1.4 μW from a 1 V supply.
A continuous transition between fractional quantum Hall and superfluid states
Creators: name: Barkeshli, Maissam
name: McGreevy, John
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We develop a theory of a direct, continuous quantum phase transition between a bosonic Laughlin fractional quantum Hall (FQH) state and a superfluid, generalizing the Mott insulator to superfluid phase diagram of bosons to allow for the breaking of time-reversal symmetry. The direct transition can be protected by a spatial symmetry, and the critical theory is a pair of Dirac fermion fields coupled to an emergent Chern-Simons gauge field. The transition may be achieved in optical traps of ultracold atoms by starting with a $ν= 1/2$ bosonic Laughlin state and tuning an appropriate periodic potential to change the topology of the composite fermion band structure.
description: 5+2 pages, 2 figures
Ein Beitrag zur Beurteilung der Betriebsfestigkeit von schiffbaulichen Schweißkonstruktionen
Creators: name: Bohlmann, Berend
Publisher: name: TUHH Universitätsbibliothek
Year: 1993
Subjects: classificationCode: 52.00
subject: Maschinenbau, Energietechnik, Fertigungstechnik: Allgemeines
subject: Schiffstechnik
subject: Betriebsfestigkeit
subject: Schweißkonstruktion
subject: Fügen
subject: Schiffbau

description: Ein Beitrag zur Beurteilung der Betriebsfestigkeit von schiffbaulichen Schweißkonstruktionen Ziel des Vorhabens ist, relevante Konzepte zur Lebensdauerprognose schiffbautypischer Schweißkonstruktionen unter betriebs ähnlichen Bedingungen experimentell zu überprüfen. Anhand der experimentell abgesicherten Wöhlerlinie einer Rahmenecke werden zwei Konzepte zur Lebensdauervorhersage angewendet. Es handelt sich um das Kerbspannungskonzept nach Radaj und um ein speziell auf schiffbauliche Belange abgestimmtes Hot-Spot-Konzept. Als wesentliches Ergebnis kann festgehalten werden, daß beide Konzepte zur Bestimmung der Schwingfestigkeit der untersuchten Rahmenecke gut geeignet sind. Dabei zeigt die Berechnung nach Radaj mit nur 3 % Abweichung von der experimentell bestimmten Dauerfestigkeit eine geringfügig höhere Treffsicherheit als das Hot-Spot-Konzept. Allerdings ist hierfür erheblich mehr Rechenaufwand erforderlich. Für die praktische Anwendung an derart komplexen Bauteilen wie dem Untersuchungsgegenstand werden deshalb numerische Untersuchungen zunächst zu einer Abschätzung der Schwingfestigkeit mit Hilfe des Strukturspannungskonzeptes führen, die bei Bedarf durch die genauere Analyse nach Radaj untermauert werden kann.
Exploring the personal and social value of tagging systems through social capital theory
Creators: name: Jeffrey, Joshua Anthony Phillip
Publisher: name: University of British Columbia
Year: 2009

description: The purpose of this study was to explore social media usage and to investigate the personal and collective value of social media. Using a case study methodology and a social capital theoretical framework, I examined the personal and social strategies that emerged from three students using del.icio.us and CiteULike over a five-month period. I used a questionnaire, in-depth semi-structured interviews, and digital archival data logs to gather a holistic perspective of how these newcomers used tagging systems as tools that facilitate the creation and maintenance of relationships. This project represented the first time a social capital theoretical framework was used to understand tagging systems behaviour. My findings suggest that people develop personal and social strategies as tagging systems members in order to maintain and build relationships with their real world social ties. According to social capital theory, these actions represent social strategies that are designed to build bridging social capital, which brings people together through social networks that were not similar to each other (e.g. school), or bonding social capital, which reinforce close ties of people with similarities in key aspects (e.g. close friends). As social media continues to emerge as a space for building connections between other members, it is recommended that designers of social media develop future systems that support the creation and maintenance of online and offline relationships.
Transport and magnetic properties of La-doped CaFe$_2$As$_2$
Creators: name: Ying, J. J.
name: Liang, J. C.
name: Luo, X. G.
name: Wang, X. F.
name: Yan, Y. J.
name: Zhang, M.
name: Wang, A. F.
name: Xiang, Z. J.
name: Ye, G. J.
name: Cheng, P.
name: Chen, X. H.
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 measured the transport properties and susceptibility of single crystals Ca$_{1-x}$La$_x$Fe$_2$As$_2$(x=0, 0.05, 0.1, 0.15, 0.19 and 0.25). Large in-plane resistivity anisotropy similar to that in Co-doped 122 iron-pnictides is observed although no transition metals were introduced in the FeAs-plane. The in-plane resistivity anisotropy gradually increases with La doping below T$_{SDW}$, being different from the hole-doped 122 superconductors. The susceptibilities of the samples show that La doping leads to suppression of SDW and induces a Curie-Weiss-like behavior at low temperature, which is much stronger than the other 122 iron-based superconductors.
Bayesian physical reconstruction of initial conditions from large scale structure surveys
Creators: name: Jasche, Jens
name: Wandelt, Benjamin D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a fully probabilistic, physical model of the non-linearly evolved density field, as probed by realistic galaxy surveys. Our model is valid in the linear and mildly non-linear regimes and uses second order Lagrangian perturbation theory to connect the initial conditions with the final density field. Our parameter space consists of the 3D initial density field and our method allows a fully Bayesian exploration of the sets of initial conditions that are consistent with the galaxy distribution sampling the final density field. A natural byproduct of this technique is an optimal non-linear reconstruction of the present density and velocity fields, including a full propagation of the observational uncertainties. A test of these methods on simulated data mimicking the survey mask, selection function and galaxy number of the SDSS DR7 main sample shows that this physical model gives accurate reconstructions of the underlying present-day density and velocity fields on scales larger than ~6 Mpc/h. Our method naturally and accurately reconstructs non-linear features corresponding to three-point and higher order correlation functions such as walls and filaments. Simple tests of the reconstructed initial conditions show statistical consistency with the Gaussian simulation inputs. Our test demonstrates that statistical approaches based on physical models of the large scale structure distribution are now becoming feasible for realistic current and future surveys.
description: 20 pages, 8 figures
Deuterium at high-redshift: Primordial abundance in the zabs = 2.621 damped Ly-alpha system towards CTQ247
Creators: name: Noterdaeme, P.
name: López, S.
name: Dumont, V.
name: Ledoux, C.
name: Molaro, P.
name: Petitjean, P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The detection of neutral deuterium in the low-metallicity damped Lyman-α system at zabs = 2.621 towards the quasar CTQ247 is reported. Using a high signal-to-noise and high spectral resolution (R = 60000) spectrum from the Very Large Telescope Ultraviolet and Visual Echelle Spectrograph, we precisely measure the deuterium-to-oxygen ratio log N(DI)/N(OI) = 0.74+/-0.04, as well as the overall oxygen abundance, log N(OI)/N(HI)=-5.29+/-0.10 (or equivalently [O/H]=-1.99+/-0.10 with respect to the solar value). Assuming uniform metallicity throughout the system, our measurement translates to (D/H) = (2.8+0.8 -0.6)x10^-5. This ratio is consistent within errors (<0.4sigma) with the primordial ratio, (D/H)p = (2.59+/-0.15)x10^-5, predicted by standard Big-Bang Nucleosynthesis using the WMAP7 value of the cosmological density of baryons (100 Omega_b h^2 = 2.249+/-0.056). The DI absorption lines are observed to be broader than the OI absorption lines. From a consistent fit of the profiles we derive the turbulent broadening to be 5.2 km/s and the temperature of the gas to be T = 8800+/-1500 K, corresponding to a warm neutral medium.
description: Accepted for publication in A&A Letters
New lensed quasars from the MUSCLES survey
Creators: name: Jackson, Neal
name: Rampadarath, Hayden
name: Ofek, Eran O.
name: Oguri, Masamune
name: Shin, Min-Su
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Gravitational lens systems containing lensed quasars are important as cosmological probes, as diagnostics of structural properties of the lensing galaxies and as tools to study the quasars themselves. The largest lensed quasar sample is the SDSS Quasar Lens Search, drawn from the Sloan Digital Sky Survey (SDSS). We are attempting to extend this survey using observations of lens candidates selected from a combination of the quasar sample from the SDSS and the UKIRT Infrared Deep Sky Survey (UKIDSS). This adds somewhat higher image quality together with a wider range of wavelength for the selection process. In previous pilot surveys we observed 5 objects, finding 2 lenses; here we present further observations of 20 objects in which we find 4 lenses, of which 2 are independently discovered in SQLS (in preparation). Following earlier work on the combination of these two surveys, we have refined our method and find that use of a colour-separation diagnostic, where we select for separations between components which appear to decrease in wavelength, is an efficient method to find lensed quasars and may be useful in ongoing and future large-scale strong lensing surveys with instruments such as Pan-STARRS and LSST. The new lenses have mostly high flux ratios, with faint secondaries buried in the lensing galaxy and typically 6-10 times less bright than the primary. Our survey brings the total number of lenses discovered in the SDSS quasar sample to 46, plus 13 lenses already known. This is likely to be up to 60-70% of the total number of lensed quasars; we briefly discuss strategies by which the rest might be found.
description: 12 pages, 7 figures. Accepted by MNRAS
Dynamical models of the Galaxy
Creators: name: McMillan, Paul J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: I discuss the importance of dynamical models for exploiting survey data, focusing on the advantages of "torus" models. I summarize a number of applications of these models to the study of the Milky Way, including the determination of the peculiar Solar velocity and investigation of the Hyades moving group.
description: 4 pages, 3 figures, to appear in proceedings of "Assembling the Puzzle of the Milky Way"
Statistical Mechanical Framework for Predicting Cellular Response
Creators: name: Forte, Lila
Publisher: name: California Institute of Technology
Year: 2016
Subjects: single cell
bayesian
steady state
perturbation
statistical mechanics
Chemistry
hypoxia

description: Developments in singe-cell analysis techniques allow simultaneous high-resolution measurements of cellular component copy number and variation within a cell population. These data provide a probability distribution for all possible states of the cell, as determined by the measured component copy number per cell. We have developed a highly-flexible, theoretical statistical mechanical framework that uses single-cell cellular component data to model the evolution of the probability distribution of those components in a cell in response to an external, physical or molecular, perturbation. This framework uses Bayesian inference to compare potential functional descriptions of how the perturbation couples to the system, and to determine the uncertainty in the parameter estimations given the data. We have applied this methodology to study the impact of changes in oxygen partial pressure on the behavior of glioblastoma multiform cancer cells. We find that oxygen concentration couples not only to individual proteins, but effects the underlying effective interactions between the studied proteins as well. The underlying effective interactions were found to couple linearly to the system, indicating a simple proportional change in the protein network across oxygen concentrations. This description of the system provides improved predictive capabilities for describing the probability distribution of the measured cellular components across a wider range of perturbation conditions than previous methods. Additionally, we apply this methodology  to show how it could be used to predict effects in difficult experimental perturbation regimes, identifying undruggable regimes, as well as the result of knocking our individual or combinations of proteins or protein interactions.
Nulls subpulse drift and mode-switching in pulsars: the polar-cap surface
Creators: name: Jones, P. B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Little attention has so far been paid to the division of the observed population between pulsars of the two spin directions that are possible. Almost all pulsars with positive corotational charge density at the polar caps are expected to satisfy space-charge limited flow boundary conditions. Charge separation by blackbody photo-electric transitions in moving ions limits the acceleration potential, analogously with the more usually considered pair creation. But the limitation is more severe so that proton and ion energies can be relativistic but not ultra-relativistic, and these allow the growth of Langmuir-mode induced turbulence that couples directly with the radiation field, as shown by Asseo, Pelletier & Sol. The consequences of this, and of the several possible physical states of the polar cap, are described, qualitatively, as possible explanations for the complex phenomena of nulls, subpulse drift and mode-switching observed in subsets of pulsars.
description: To be published in Monthly Notices of the Royal Astronomical society; 11 pages
"Too good" to succeed? Why not just try “good enough”! : some deliberations on the prospects of frugal innovations
Creators: name: Tiwari, Rajnish
name: Herstatt, Cornelius
Publisher: name: TUHH Universitätsbibliothek
Year: 2013
Subjects: Frugale Innovationen
Reverse Innovation
Schwellenländer
Indien
China
frugal innovation
reverse innovation
emerging markets
India

description: High-tech, German companies are facing a curious problem: their products are reportedly "too good" for the expanding global markets. So in a way they get "penalised" for offering a superlative quality. At a second glance, though, this doesn’t seem surprising. For, succeeding in the emerging markets like India or China often requires developing market-specific products and services that enable an attractive value proposition without taking recourse to (excessive) over-engineering. Furthermore, the innovations should be able to cope with, and successfully circumvent, the given infrastructural restrictions ever so present in the rural and semi-urban areas in such economies.
The Biequivalence of Locally Cartesian Closed Categories and Martin-Löf Type Theories
Creators: name: Clairambault, Pierre
name: Dybjer, Peter
Publisher: name: arXiv
Year: 2011
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Category Theory (math.CT)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Seely's paper "Locally cartesian closed categories and type theory" contains a well-known result in categorical type theory: that the category of locally cartesian closed categories is equivalent to the category of Martin-Löf type theories with Pi-types, Sigma-types and extensional identity types. However, Seely's proof relies on the problematic assumption that substitution in types can be interpreted by pullbacks. Here we prove a corrected version of Seely's theorem: that the Bénabou-Hofmann interpretation of Martin-Löf type theory in locally cartesian closed categories yields a biequivalence of 2-categories. To facilitate the technical development we employ categories with families as a substitute for syntactic Martin-Löf type theories. As a second result we prove that if we remove Pi-types the resulting categories with families are biequivalent to left exact categories.
description: TLCA 2011 - 10th Typed Lambda Calculi and Applications, Novi Sad : Serbia (2011)
Ex-files: Sex-Specific Gene Expression Profiles Explorer
Creators: name: Bocci, Giovanni
name: Yang, Jeremy
name: Ursu, Oleg
name: Bologa, Cristian
name: Mathias, Stephen
name: Robinson, Peter
name: Karlebach, Guy
name: Oprea, Tudor
Publisher: name: Zenodo
Year: 2018

description: Poster prepared for NIH Data Commons Pilot Project Consortium (DCPPC) scientific use case, developed in 2018, with GTEx gene expression data and deployed as online application.
Coagulation Calculations of Icy Planet Formation at 15--150 AU: A Correlation Between the Maximum Radius and the Slope of the Size Distribution for Transneptunian Objects
Creators: name: Kenyon, Scott J.
name: Bromley, Benjamin C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We investigate whether coagulation models of planet formation can explain the observed size distributions of transneptunian objects (TNOs). Analyzing published and new calculations, we demonstrate robust relations between the size of the largest object and the slope of the size distribution for sizes 0.1 km and larger. These relations yield clear, testable predictions for TNOs and other icy objects throughout the solar system. Applying our results to existing observations, we show that a broad range of initial disk masses, planetesimal sizes, and fragmentation parameters can explain the data. Adding dynamical constraints on the initial semimajor axis of `hot' KBOs along with probable TNO formation times of 10-700 Myr restricts the viable models to those with a massive disk composed of relatively small (1-10 km) planetesimals.
description: Text: 44 pages, Tables: 5, Figures: 17; Accepted for publication in the Astronomical Journal
Appendix: The Mechanics of Books versus the Mechanics of Movies
Creators: name: Dean, John
Publisher: name: Center for United States Studies, Halle (Saale)
Year: 2009
Subjects: American history
American literature
American culture

description: American studies journal; Vol. 53, No. 08, 2009. 2199-7268
description: Special Edition: Lincoln’s Legacy: Nation Building, Democracy, and the Question of Race and Civil Rights
Multipath Compensation Algorithm for TDMA-Based Ultrasonic Local Positioning Systems
Creators: name: Aguilera, Teodoro
name: Alvarez, Fernando J.
name: Gualda, David
name: Villadangos, Jose M.
name: Hernandez, Alvaro
name: Urena, Jesus
Publisher: name: arXiv
Year: 2024
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper proposes a multipath compensation algorithm (MCA) to enhance the performance of an ultrasonic local positioning system under adverse multipath conditions. The proposed algorithm is based on the accurate estimation of the environment impulse response from which the corresponding line of sight for each channel is obtained. Experimental results in two different environments and with different conditions have been conducted in order to evaluate the performance of this proposal. In both environments, results confirm the expected improvements, even under severe multipath conditions where positioning errors have been reduced from 44 to 9 cm for the 95% of the measurements.
Teaching American History and the Movie Amistad
Creators: name: Meissner, Christine
Publisher: name: Center for United States Studies, Halle (Saale)
Year: 2009
Subjects: American history
American literature
American culture

description: American studies journal; Vol. 53, No. 09, 2009. 2199-7268
description: Special Edition: Lincoln’s Legacy: Nation Building, Democracy, and the Question of Race and Civil Rights
TEACHING THE ENGLISH LANGUAGE TO LEARNERS OF ENGLISH FOR SPECIFIC PURPOSES (ESP)
Creators: name: Jurayeva, Shaxnoza
name: Mamajonova, Maxbuba
Publisher: name: Zenodo
Year: 2023

description: Teaching English for ESP learners requires a tailored approach that addresses their specific language needs, enhances their domain knowledge, and equips them with the necessary skills to succeed in their respective fields. This article explores key principles and strategies for effective ESP instruction, including understanding learners' needs, contextualizing language instruction, developing domain-specific skills, integrating technology, collaborating with domain experts, and providing assessment and feedback. By implementing these approaches, English language instructors can empower ESP learners to confidently and competently communicate in their professional or academic domains.
Lincoln Pathfinder: Internet Resources on Studying and Teaching Abraham Lincoln
Creators: name: Hübner, Andreas
Publisher: name: Center for United States Studies, Halle (Saale)
Year: 2009
Subjects: American history
American literature
American culture

description: American studies journal; Vol. 53, No. 10, 2009. 2199-7268
description: Special Edition: Lincoln’s Legacy: Nation Building, Democracy, and the Question of Race and Civil Rights
Motif and image in selected works of D.G. Rossetti
Creators: name: Hager, Erika
Publisher: name: University of Calgary
Year: 1976
Subjects: subject: PR 5248 A35 H3 1976 Microfiche
subject: Rossetti, Dante Gabriel, 1828-1882 - Aesthetics

description: Bibliography: p. 122-131.
t-SURFF: Fully Differential Two-Electron Photo-Emission Spectra
Creators: name: Scrinzi, Armin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The time dependent surface flux (t-SURFF) method is extended to single and double ionization of two electron systems. Fully differential double emission spectra by strong pulses at extreme UV and infrared wave length are calculated using simulation volumes that only accommodate the effective range of the atomic binding potential and the quiver radius of free electrons in the external field. For a model system we find pronounced dependence of shake-up and non-sequential double ionization on phase and duration of the laser pulse. Extension to fully three-dimensional calculations is discussed.
Religious symbolism in the poetry and painting of the Pre-Raphaelites
Creators: name: MacLeod, Joan Estelle
Publisher: name: University of Calgary
Year: 1978
Subjects: subject: PR 585 P7 M18 1987 Microfiche
subject: English poetry - 19th century - Moral and religious aspects
subject: Preraphaelitism - England - Influence

description: Bibliography: p. 375-391.
Entwicklung einer Suchfunktion mit Information-Retrieval-Schnittstelle für den Dokumentenserver OPUS unter besonderer Berücksichtigung von Entwurfsmustern
Creators: name: Marahrens, Oliver
Publisher: name: TUHH Universitätsbibliothek
Year: 2007
Subjects: subject: Dokumentenserver
subject: OPUS
subject: Repositorysoftware
subject: Suchfunktion
classificationCode: 004
subject: Informatik
classificationCode: 54.65
subject: Webentwicklung, Webanwendungen
classificationCode: 06.35
subject: Informationsmanagement
subject: Suchmaschine
subject: Lucene
subject: Entwurfsmuster
subject: Repository

description: In der vorliegenden Abschlussarbeit wurde eine Suchfunktion für den Dokumentenserver TUBdok, der von der Universitätsbibliothek an der Technischen Universität Hamburg-Harburg betrieben wird, entwickelt. Für die Suche wurde eine in das Dokumentenserver-System eingepasste Oberfläche entwickelt. Außerdem steht eine per URL ansteuerbare Information-Retrieval-Schnittstelle zur Verfügung, die das layout-unabhängige XML-Format OpenSearch zurückgibt. Die Suchfunktion basiert auf Apache Lucene und wurde über eine im Zend-Framework vorhandene Implementierung in den PHP-basierten Dokumentenserver integriert. Auch das Indizierungssystem, mit dem die Inhalte des Dokumentenservers in den Datenbestand der Suchmaschine übertragen werden, wurde in PHP implementiert. Die Indexstruktur ist selbst erstellt und an die Dokumentenserver-Umgebung angepasst. Das System ist nach Abschluss der Arbeit grundsätzlich funktionsfähig.
Hadron-Hadron Interactions from Imaginary-time Nambu-Bethe-Salpeter Wave Function on the Lattice
Creators: name: The HAL QCD Collaboration
name: Ishii, Noriyoshi
name: Aoki, Sinya
name: Doi, Takumi
name: Hatsuda, Tetsuo
name: Ikeda, Yoichi
name: Inoue, Takashi
name: Murano, Keiko
name: Nemura, Hidekatsu
name: Sasaki, Kenji
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Imaginary-time Nambu-Bethe-Salpeter (NBS) wave function is introduced to extend our previous approach for hadron-hadron interactions on the lattice. Scattering states of hadrons with different energies encoded in the NBS wave-function are utilized to extract non-local hadron-hadron potential. "The ground state saturation", which is commonly used in lattice QCD but is hard to be achieved for multi-baryons, is not required. We demonstrate that the present method works efficiently for the nucleon-nucleon interaction (the potential and the phase shift) in the 1S_0 channel.
description: 13 pages, 6 figures
List of Contributors
Creators: name: Nagler, Jörg
Publisher: name: Center for United States Studies, Halle (Saale)
Year: 2009
Subjects: American history
American literature
American culture

description: American studies journal; Vol. 53, No. 11, 2009. 2199-7268
description: Special Edition: Lincoln’s Legacy: Nation Building, Democracy, and the Question of Race and Civil Rights
Eine Methode zur Reduzierung der produktvarianteninduzierten Komplexität
Creators: name: Brosch, Max
Publisher: name: TUHH Universitätsbibliothek
Year: 2015
Subjects: Komplexitätsmanagement
produktvarianteninduzierte Komplexität
Variantenmanagement
Supply Chain Management

description: Durch unterschiedliche Entwicklungstrends, wie z.B. die Globalisierung des Wettbewerbs, dynamische Anforderungen an die Produkte und kürzere Produktlebenszyklen, stehen Unternehmen neuen Herausforderungen gegenüber. Diesen Trends wird häufig mit der Entwicklung von kundenindividuellen Produktvarianten begegnet, die folglich zu erhöhter produktvarianteninduzierter Komplexität führen. Unternehmen müssen sich daher mit der Fragestellung auseinandersetzen, wie diese Komplexität reduziert werden kann. Im Rahmen dieser Arbeit wird eine Methode zu ihrer besseren Beherrschung und Reduzierung entwickelt. Hierzu werden zum Einen strategische Handlungsfelder des Komplexitätsmanagements identifiziert und die Transparenz der Komplexität erhöht, indem sie erfasst und analysiert wird. Zum Anderen wird die Produktentstehung durch die Berücksichtigung der Komplexität bei der Weiterentwicklung und Optimierung einer Produktfamilie und der Auftragsabwicklung unterstützt. Die Methode wird zunächst anhand eines einfachen Beispiels erläutert. In diesem Beispiel sind die Problembeschreibung aus einer Expertenbefragung, weitere Erfahrungen aus verschiedenen Industrieprojekten und Hinweise aus der Literatur zusammengeführt. Der Praxisbezug wird anschließend durch eine Fallstudie in einem Unternehmen sichergestellt.
Cosmic Rays and Stochastic Magnetic Reconnection in the Heliotail
Creators: name: Desiati, P.
name: Lazarian, A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Galactic cosmic rays are believed to be generated by diffusive shock acceleration processes in Supernova Remnants, and the arrival direction is likely determined by the distribution of their sources throughout the Galaxy, in particular by the nearest and youngest ones. Transport to Earth through the interstellar medium is expected to affect the cosmic ray properties as well. However, the observed anisotropy of TeV cosmic rays and its energy dependence cannot be explained with diffusion models of particle propagation in the Galaxy. Within a distance of a few parsec, diffusion regime is not valid and particles with energy below about 100 TeV must be influenced by the heliosphere and its elongated tail. The observation of a highly significant localized excess region of cosmic rays from the apparent direction of the downstream interstellar flow at 1-10 TeV energies might provide the first experimental evidence that the heliotail can affect the transport of energetic particles. In particular, TeV cosmic rays propagating through the heliotail interact with the 100-300 AU wide magnetic field polarity domains generated by the 11 year cycles. Since the strength of non-linear convective processes is expected to be larger than viscous damping, the plasma in the heliotail is turbulent. Where magnetic field domains converge on each other due to solar wind gradient, stochastic magnetic reconnection likely occurs. Such processes may be efficient enough to re-accelerate a fraction of TeV particles as long as scattering processes are not strong. Therefore the fractional excess of TeV cosmic rays from the narrow region toward the heliotail direction traces sightlines with the lowest smearing scattering effects, that can also explain the observation of a harder than average energy spectrum.
description: 14 pages, 7 figures. Accepted for publication by Nonlinear Processes in Geophysics
Role of RasGRP1 in T cell development and function
Creators: name: Chen, Xiaoxi
Publisher: name: University of British Columbia
Year: 2009

description: The unique feature of the thymus is to establish the discrimination between self and non-self and providing immunity to foreign peptides, particularly those derived from pathogens, that are presented by self-major histocompatibility complex (MHC) molecules. The development and activation of T lymphocytes require many critical decisions that profoundly affect their differentiation and ability to mount an effective immune response. A central mediator of this developmental program is the small GTPase Ras, emitting cytoplasmic signals through downstream MAPK pathways and eventually affecting gene expression. TCR signal transduction orchestrates the activation of Ras by integrating at least two Ras-guanyl nucleotide exchange factors, RasGRP1 and Sos. RasGRP1 is especially critical for the survival and differentiation of developing thymocytes whereas negative selection of thymocytes bearing an autoreactive TCR appears to be RasGRP1 independent. In this thesis, by using RasGRP1 null mutant mice, we characterized the role of RasGRP1 in conventional and regulatory T cell (Treg) development, as well as the consequential effects that result from its deficiency in peripheral tolerance, T cell activation, proliferation and immune response against infections. Investigations on RasGRP1-/- mice expressing a transgenic (Tg) MHC class Il-restricted TCR revealed that RasGRP1 transmits differentiation signaling critically required for conventional CD4 T cell development. As a result of the impaired developmental program, RasGRP1-/- mice spontaneously acquire an acutely activated and proliferating CD4 T cell population that exhibits characteristics of T cell exhaustion. Interestingly, studies using MHC class I-restricted TCR Tg mice lacking RasGRP1 suggest that RasGRP1 is essential for lowering activation threshold and achieving optimal cytokine receptor expression on conventional CD8 T cells upon activation. We also investigated the consequence of RasGRP1 deficiency on the development and function of regulatory T cells. We found that RasGRP1 differentially affected the development and function of CD4 and CD8 regulatory T cells. Overall, our studies provide novel insights to the significance of RasGRP1 signaling pathway in T cell development and function, along with how its deficiency affects the development and function of regulatory T cells.
Study of Thomas Carlyle's reputation, 1837-1845, with particular reference to the periodicals
Creators: name: Littlewood, John Michael
Publisher: name: University of Calgary
Year: 1971
Subjects: subject: PR 4434 L56 1971 Microfilm
subject: Carlyle, Thomas, 1795-1881
subject: English periodicals - 19th century

description: Bibliography: p. 196-204.
Weak values are universal in von Neumann measurements
Creators: name: Dressel, J.
name: Jordan, A. N.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We refute the widely held belief that the quantum weak value necessarily pertains to weak measurements. To accomplish this, we use the transverse position of a beam as the detector for the conditioned von Neumann measurement of a system observable. For any coupling strength, any initial states, and any choice of conditioning, the averages of the detector position and momentum are completely described by the real parts of three generalized weak values in the joint Hilbert space. Higher-order detector moments also have similar weak value expansions. Using the Wigner distribution of the initial detector state, we find compact expressions for these weak values within the reduced system Hilbert space. As an application of the approach, we show that for any Hermite-Gauss mode of a paraxial beam-like detector these expressions reduce to the real and imaginary parts of a single system weak value plus an additional weak-value-like contribution that only affects the momentum shift.
description: 7 pages, 3 figures, includes Supplementary Material
The Herschel Virgo Cluster Survey: X.The relationship between cold dust and molecular gas content in Virgo spirals
Creators: name: Corbelli, Edvige
name: Bianchi, Simone
name: Cortese, Luca
name: Giovanardi, Carlo
name: Magrini, Laura
name: Pappalardo, Ciro
name: Boselli, Alessandro
name: Bendo, George J.
name: Davies, Jonathan
name: Grossi, Marco
name: Madden, Suzanne C.
name: Smith, Matthew W. L.
name: Vlahakis, Catherine
name: Auld, Robbie
name: Baes, Maarten
name: De Looze, Ilse
name: Fritz, Jacopo
name: Pohlen, Michael
name: Verstappen, Joris
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Using the far-infrared emission, as observed by the Herschel Virgo Cluster Survey (HeViCS), and the integrated HI and CO brightness, we infer the dust and total gas mass for a magnitude limited sample of 35 metal rich spiral galaxies in Virgo. The CO flux correlates tightly and linearly with far-infrared fluxes observed by Herschel. Molecules in these galaxies are more closely related to cold dust rather than to dust heated by star formation or to optical/NIR brightness. We show that dust mass establishes a stronger correlation with the total gas mass than with the atomic or molecular component alone. The dust-to-gas ratio increases as the HI deficiency increases, but in highly HI deficient galaxies it stays constant. Dust is in fact less affected than atomic gas by weak cluster interactions, which remove most of the HI gas from outer and high latitudes regions. Highly disturbed galaxies, in a dense cluster environment, can instead loose a considerable fraction of gas and dust from the inner regions of the disk keeping constant the dust-to-gas ratio. There is evidence that the molecular phase is also quenched. This quencing becomes evident by considering the molecular gas mass per unit stellar mass. Its amplitude, if confirmed by future studies, highlights that molecules are missing in Virgo HI deficient spirals, but to a somewhat lesser extent than dust.
description: 11 pages, 8 figures. Accepted for publication in A&A