cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Insights into leukemogenesis in a MN1-induced leukemia model
Creators: name: Lai, Courteney Kwok-Wynne
Publisher: name: University of British Columbia
Year: 2017

description: Acute myeloid leukemia (AML) spans a wide array of distinct clinical entities and likely molecular determinants. Despite early treatment success, many aspects of leukemogenesis remain poorly understood, including determinants of leukemic phenotype and identity, and genes and pathways critical to leukemic stem cell (LSC) function. Meningioma 1 (MN1) is a transcriptional co-factor that is an independent prognostic marker for normal karyotype AML, with high expression linked to poor survival and resistance to treatment by ATRA-induced differentiation. MN1 is also a potent and sufficient oncogene in murine leukemia, able to block differentiation and promote LSC self-renewal through transformation of cells at the common myeloid progenitor level. Using this single-hit oncogenic model, MN1 overexpression was exploited to gain further insight into the leukemic process. The objective of this thesis work was to identify and better understand key regulators in LSC function. Sixteen MN1 structural variants were generated to investigate if the leukemic properties of increased proliferation and self-renewal, arrested hematopoietic differentiation, in vivo leukemogenic activity, and resistance to all-trans retinoic acid-induced differentiation could be localised to specific protein regions. Functional assays revealed that the MN1 C-terminus is critical for blocking myeloid and lymphoid differentiation and ATRA resistance while the N-terminus is essential for leukemogenicity, proliferation and self-renewal, and arrested erythro-megakaryocyte differentiation, demonstrating that these leukemic properties can be attributed to specific and largely distinct regions. To identify key genes and pathways underlying leukemic activity, the phenotypic heterogeneity of MN1 leukemic cells was functionally assessed, revealing leukemic and non-leukemic subsets. Gene expression profiling of these subsets was combined with previously-published datasets comparing wildtype leukemic MN1 and mutant versions with varying leukemogenic activity to identify candidate genes critical to leukemia. Through functional analysis of leukemic properties, Hlf and HoxA9 were identified as critical to in vitro proliferation, self-renewal, and impaired myeloid differentiation in MN1 leukemia. Furthermore, this work identifies Meis2 as a novel player in MN1-induced leukemia, with essential roles in proliferation, self-renewal, differentiation, and apoptosis. Together, these models provide a platform to unravel the basis for dysregulated gene expression associated with leukemia and to probe the cellular and molecular determinants of leukemogenesis.
Investigation of all Ricci semi-symmetric and all conformally semi-symmetric spacetimes
Creators: name: Åman, Jan E.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Differential Geometry (math.DG)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We find all Ricci semi-symmetric as well as all conformally semi-symmetric spacetimes. Neither of these properties implies the other. We verify that only conformally flat spacetimes can be Ricci semi-symmetric without being conformally semi-symmetric and show that only vacuum spacetimes and spacetimes with just a $Λ$-term can be Ricci semi-symmetric without being conformally semi-symmetric.
description: 4 pages, 1 table
title: Aligning management and reproductive strategies in modern fisheries management
Creators: name: Griffeth, Steven P.
Publisher: name: Memorial University of Newfoundland
publisherIdentifier: https://ror.org/04haebc03
publisherIdentifierScheme: ROR
Year: 2024

description: Numerous approaches to fisheries management exist, and it is paramount that the right management strategy is implemented for a given resource. One tool available in the decision-making process is a management strategy evaluation, which aims to simulate the effects of varying management strategies and harvest control rules on a stock. Management strategies are not one-size-fits-all, and the selected strategy and associated harvest control rules should align with the species' life history, including reproductive output, as well as resource use objectives. The following report provides a review of management strategy implementation in Canada (Chapter 2), fish reproductive strategies (Chapter 3), and matrix projection models for their use in management strategy evaluation (Chapter 4). Chapter 5 includes original research and details the outcome of a management strategy evaluation of the precautionary approach, co-management, and ecosystem-based fisheries management strategies on hypothetical resources with varying life history traits, ranging from extreme r-selected to extreme K-selected. The management strategy evaluation was completed for each resource and strategy under three distinct scenarios based on stock health, economic pressure, and ecosystem health. The overall finding was that the precautionary approach, when implemented correctly, was the most balanced strategy for meeting the objectives of each scenario. The most influential factor affecting simulation outcomes was economic pressure, with co-management susceptible to both under- and over-fishing at the extremes of low and high economic pressure to fish. The report continues with a comparison of the original research results with real-world fisheries (Chapter 6) and concludes with a summary chapter (Chapter 7). Fisheries management is complex, balancing social, economic, and ecosystem objectives, but a healthy resource ultimately underpins any successful management system. A fisheries management strategy that aligns with the reproductive output of a resource stands a chance at meeting these objectives and results in a sustainable, healthy fishery.
Measuring the dark matter equation of state
Creators: name: Serra, Ana Laura
name: Romero, Mariano Javier de León Domínguez
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The nature of the dominant component of galaxies and clusters remains unknown. While the astrophysics community supports the cold dark matter (CDM) paradigm as a clue factor in the current cosmological model, no direct CDM detections have been performed. Faber and Visser 2006 have suggested a simple method for measuring the dark matter equation of state that combines kinematic and gravitational lensing data to test the widely adopted assumption of pressureless dark matter. Following this formalism, we have measured the dark matter equation of state for first time using improved techniques. We have found that the value of the equation of state parameter is consistent with pressureless dark matter within the errors. Nevertheless, the measured value is lower than expected because typically the masses determined with lensing are larger than those obtained through kinematic methods. We have tested our techniques using simulations and we have also analyzed possible sources of error that could invalidate or mimic our results. In the light of this result, we can now suggest that the understanding of the nature of dark matter requires a complete general relativistic analysis.
description: 4 pages, 2 figures, accepted for publication in Monthly Notices of the Royal Astronomical Society Letters. Minor revision as suggested by referee
Quantum pumping in a ballistic graphene bilayer
Creators: name: Wakker, Marnix
name: Blaauboer, Miriam
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences
subject: .org

description: We investigate quantum pumping of massless Dirac fermions in an ideal (impurity free) double layer of graphene. The pumped current is generated by adiabatic variation of two gate voltages in the contact regions to a weakly doped double graphene sheet. At the Dirac point and for a wide bilayer with width W much larger then length L, we find that the pumped current scales linearly with the interlayer coupling length l_{perp} for L/l_{perp} << 1, is maximal for L/l_{perp} ~ 1, and crosses over to a log(L/l_{perp})/(L/l_{perp})-dependence for L/l_{perp} >> 1. We compare our results with the behavior of the conductance in the same system and discuss their experimental feasibility.
description: 6 pages, 3 figures
Astrophysical limitations to the identification of dark matter: indirect neutrino signals vis-a-vis direct detection recoil rates
Creators: name: Serpico, Pasquale D.
name: Bertone, Gianfranco
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A convincing identification of dark matter (DM) particles can probably be achieved only through a combined analysis of different detections strategies, which provides an effective way of removing degeneracies in the parameter space of DM models. In practice, however, this program is made complicated by the fact that different strategies depend on different physical quantities, or on the same quantities but in a different way, making the treatment of systematic errors rather tricky. We discuss here the uncertainties on the recoil rate in direct detection experiments and on the muon rate induced by neutrinos from dark matter annihilations in the Sun, and we show that, contrarily to the local DM density or overall cross section scale, irreducible astrophysical uncertainties affect the two rates in a different fashion, therefore limiting our ability to reconstruct the parameters of the dark matter particle. By varying within their respective errors astrophysical parameters such as the escape velocity and the velocity dispersion of dark matter particles, we show that the uncertainty on the relative strength of the neutrino and direct-detection signal is as large as a factor of two for typical values of the parameters, but can be even larger in some circumstances.
description: 12 pages, 3 figures. Improved presentation and Fig.3; clarifications, references and an appendix added; conclusions unchanged. Matches version published in PRD
Nearest Neighbour Decoding and Pilot-Aided Channel Estimation in Stationary Gaussian Flat-Fading Channels
Creators: name: Asyhari, A. Taufiq
name: Koch, Tobias
name: Fàbregas, Albert Guillén i
Publisher: name: arXiv
Year: 2011
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We study the information rates of non-coherent, stationary, Gaussian, multiple-input multiple-output (MIMO) flat-fading channels that are achievable with nearest neighbour decoding and pilot-aided channel estimation. In particular, we analyse the behaviour of these achievable rates in the limit as the signal-to-noise ratio (SNR) tends to infinity. We demonstrate that nearest neighbour decoding and pilot-aided channel estimation achieves the capacity pre-log - which is defined as the limiting ratio of the capacity to the logarithm of SNR as the SNR tends to infinity - of non-coherent multiple-input single-output (MISO) flat-fading channels, and it achieves the best so far known lower bound on the capacity pre-log of non-coherent MIMO flat-fading channels.
description: 5 pages, 1 figure. To be presented at the IEEE International Symposium on Information Theory (ISIT), St. Petersburg, Russia, 2011. Replaced with version that will appear in the proceedings
Gyroscopic Pumping in the Solar Near-Surface Shear Layer
Creators: name: Miesch, Mark S.
name: Hindman, Bradley W.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We use global and local helioseismic inversions to explore the prevailing dynamical balances in the solar Near-Surface Shear Layer (NSSL). The differential rotation and meridional circulation are intimately linked, with a common origin in the turbulent stresses of the upper solar convection zone. The existence and structure of the NSSL cannot be attributed to the conservation of angular momentum by solar surface convection, as is often supposed. Rather, the turbulent angular momentum transport accounts for the poleward meridional flow while the often overlooked meridional force balance maintains the mid-latitude rotational shear. We suggest that the base of the NSSL is marked by a transition from baroclinic to turbulent stresses in the meridional plane which suppress Coriolis-induced circulations that would otherwise establish a cylindrical rotation profile. The turbulent angular momentum transport must be non-diffusive and directed radially inward. Inferred mean flows are consistent with the idea that turbulent convection tends to mix angular momentum but only if the mixing efficiency is inhomogeneous and/or anisotropic. The latitudinal and longitudinal components of the estimated turbulent transport are comparable in amplitude and about an order of magnitude larger than the vertical component. We estimate that it requires 2--4% of the solar luminosity to maintain the solar NSSL against the inertia of the mean flow. Most of this energy is associated with the turbulent transport of angular momentum out of the layer, with a spin-down time scale of $\sim$ 600 days. We also address implications of these results for numerical modeling of the NSSL.
description: 26 pages, 11 Figures, Accepted on August 25, 2011 for publication in the Astrophysical Journal
Atmospheric politics : negotiating climate change in the Bolivian highlands
Creators: name: Whitt, Clayton Abel
Publisher: name: University of British Columbia
Year: 2017

description: This dissertation examines the experiences of farmers and herders in the highlands of Bolivia’s central Andes, or Altiplano, as they face and respond to climate change and other environmental problems. This work is based on 12 months of fieldwork among Quechua- and Spanish-speaking people in a rural municipality called El Choro, located on the floodplain of the Desaguadero River and just north of Lake Poopó. Bolivia is already suffering impacts from climate change, including shifting precipitation patterns, such as floods and droughts that disrupt agriculture. The government of Evo Morales and the MAS party has positioned itself to be an international leader in the fight against climate change while also continuing to pursue wealth at the hands of high impact extractive industries such as hydrocarbons and minerals. This dissertation, then, is an attempt to take a closer view of one community that is simultaneously beset by the consequences of climate change and water pollution but also is presented with new opportunities for economic development and new investments by the government. I explore how environmental experiences and politics are entangled in different ways and the types of material and spatial linkages that refract politics through the changing environment and vice versa. I trace the spatial politics of climate change and other environmental transformations by focusing in on people’s daily experiences with environmental phenomena such as mud, floods, droughts, and lightning strikes. I draw on spatial theories, such as Doreen Massey’s conceptualization of space as composed of a multiplicity of intersecting trajectories, and affect theory, especially Baruch Spinoza’s notion of bodies affecting other bodies by increasing or decreasing their capacity to act. I use these theories to draw out a conceptualization of what I call atmospheric politics, which emerge in the material interactions of daily life. I argue that atmospheric politics manifest in people’s day-to-day negotiations with their changing environments. These negotiations reflect mutual entanglement between people and environments that open to a multiplicity of possibilities, despite the grim futures prognosticated under climate change.
Generating single-mode behavior in fiber-coupled optical cavities
Creators: name: Busch, Jonathan
name: Beige, Almut
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose to turn two resonant distant cavities effectively into one by coupling them via an optical fiber which is coated with two-level atoms [Franson et al., Phys. Rev. A 70, 062302 (2004)]. The purpose of the atoms is to destructively measure the evanescent electric field of the fiber on a time scale which is long compared to the time it takes a photon to travel from one cavity to the other. Moreover, the boundary conditions imposed by the setup should support a small range of standing waves inside the fiber, including one at the frequency of the cavities. In this way, the fiber provides an additional decay channel for one common cavity field mode but not for the other. If the corresponding decay rate is sufficiently large, this mode decouples effectively from the system dynamics. A single non-local resonator mode is created.
description: 13 pages, 6 figures, final version, accepted for publication
A fundamental test of the Higgs Yukawa coupling at RHIC in A+A collisions
Creators: name: Tannenbaum, M. J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Searches for the intermediate boson, $W^{\pm}$, the heavy quantum of the Weak Interaction, via its semi-leptonic decay, $W\to e +ν$, in the 1970's instead discovered unexpectedly large hadron production at high $p_T$, notably $π^0$, which provided a huge background of $e^{\pm}$ from internal and external conversions. Methods developed at the CERN ISR which led to the discovery of direct-single-$e^{\pm}$ in 1974, later determined to be from the semi-leptonic decay of charm which had not yet been discovered, were used by PHENIX at RHIC to make precision measurements of heavy quark production in p-p and Au+Au collisions, leading to the puzzle of apparent equal suppression of light and heavy quarks in the QGP. If the Higgs mechanism gives mass to gauge bosons but not to fermions, then a proposal that all 6 quarks are nearly massless in a QGP, which would resolve the puzzle, can not be excluded. This proposal can be tested with future measurements of heavy quark correlations in A+A collisions
description: 12 pages, 16 figures, 26th Winter Workshop on Nuclear Dynamics, Ocho Rios, Jamaica WI, January 2-9, 2010. Corrected citation of 1974 direct single lepton discovery
Indigenous parents of students with special needs in education : the lived experience
Creators: name: Nelson, Melanie
Publisher: name: University of British Columbia
Year: 2017

description: Parents of students with special needs may experience stressors in association with their interaction with the education system. Meetings with multiple professionals can be intimidating, the process of assessment can be confusing, terminology used may be unfamiliar, and realizing their child is having challenges may be upsetting. Following the designation, navigation of special education services can also be challenging. Parents of Indigenous children may experience additional stressors. There is an incompatibility between traditional Indigenous cultural values and mainstream education, constructs that exist in special education may not exist in the same way in Indigenous culture, and some parents believe assessment is attempted assimilation. In addition, many parents have previous involvement with residential schools. Students who attended experienced loss of language and culture, and many also experienced abuse. These factors may impact how Indigenous parents perceive the current education system. In the present study, the experiences of seven Indigenous parents of students with special needs in education were explored. The aim was to better understand the experience of Indigenous parents regarding the processes that lead to their child’s designation and their navigation of special education services. Semi-structured interviews were conducted with parents from the Lower Mainland of British Columbia. Six broad themes emerged following data analysis using Interpretative Phenomenological Analysis. Findings indicate some commonalities between Indigenous and non-Indigenous parent experiences. The use of special education terminology may be upsetting, feelings of guilt and intimidation may arise when interacting with educators, learning how to navigate the system can be time consuming, and parents may experience stress as a result of their child being bullied. In addition, findings identified which are specific to Indigenous parents and supported by previous studies include: significant parent involvement in their child’s education, the importance of relationships with educators, the inclusivity of Indigenous communities, possible cultural discontinuity between the home and school, the construct of special needs not existing or existing in a different way in traditional culture or language, and the possible impact having a family member who attended residential school may have on the current view of schools for children and their parents.
Continuous-variable controlled-Z gate using an atomic ensemble
Creators: name: Wang, Ming-Feng
name: Jiang, Nian-Quan
name: Jin, Qing-Li
name: Zheng, Yi-Zhuang
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The continuous-variable controlled-Z gate is a canonical two-mode gate for universal continuous-variable quantum computation. It is considered as one of the most fundamental continuous-variable quantum gates. Here we present a scheme for realizing continuous-variable controlled-Z gate between two optical beams using an atomic ensemble. The gate is performed by simply sending the two beams propagating in two orthogonal directions twice through a spin-squeezed atomic medium. Its fidelity can run up to one if the input atomic state is infinitely squeezed. Considering the noise effects due to atomic decoherence and light losses, we show that the observed fidelities of the scheme are still quite high within presently available techniques.
description: 7 pages, 3 figures, to appear in Physical Review A
ЭХИНОКОККОЗ ЛЕГКИХ У ДЕТЕЙ: ОСОБЕННОСТИ, ОСЛОЖНЕНИЯ И ПЕЦИЛОМИКОЗНАЯ ИНФЕКЦИЯ
Creators: name: Вахидова, А.М.
name: Рустамова, И.О.
name: Марданова, А.А.
name: Шамсиева, Ш.У.
Publisher: name: Zenodo
Year: 2023

description: Эхинококкоз легкого у детей представляет собой заболевание, вызванное паразитическим гельминтом эхинококком. Чаще всего эхинококкоз регистрируется в животноводческих регионах, где складываются наиболее благоприятные условия для распространения гельминта, однако в эпоху тотальных миграций и путешествий заразиться можно, по сути, где угодно.   Легкие поражаются примерно в 15% всех случаев эхинококковой инвазии, и это вторая по частоте встречаемости (после печени) область основного очага. Тяжесть эхинококкоза легких обусловлена объективными трудностями диагностики, обилием осложнений и очевидной опасностью самой локализации кист в дыхательной системе.
Magic-wavelength optical traps for Rydberg atoms
Creators: name: Zhang, S.
name: Robicheaux, F.
name: Saffman, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose blue-detuned optical traps that are suitable for trapping of both ground state and Rydberg excited atoms. Addition of a background compensation field or suitable choice of the trap geometry provides a magic trapping condition for ground and Rydberg atoms at the trap center. Deviations from the magic condition at finite temperature are calculated. Designs that achieve less than 200 kHz differential trap shift between Cs ground and 125s Rydberg states for 10 μK Cs atoms are presented. Consideration of the trapping potential and photoionization rates
description: 8 figures, appendix added, title modified
Study of Background Processes in the Electrostatic Spectrometers of the KATRIN Experiment
Creators: name: Mertens, Susanne
Publisher: name: Karlsruhe
Year: 2012
Subjects: Neutrino
KATRIN
Tritium
Background

description: The Karlsruhe Tritium Neutrino Experiment KATRIN is designed to determine the neutrino mass with a sensitivity of 200 meV (90% C.L.). The focus of this work lies on the investigation of the main background sources at KATRIN: Muon induced background, background due to penning traps, and background arising from stored electrons. A novel method to eliminate the background arising from stored electrons, based on Electron Cyclotron Resonance, was experimentally tested in this work.
Development of an assay to detect proteolytic activity in peptide arrays
Creators: name: Golla, Anitha
Publisher: name: Karlsruhe
Year: 2014

description: A screening method in which a reporter surface gains fluorescence on detection of proteolytic activity was developed. The reporter surface is a two dimensional monolayer covered with a reporter peptide (contains a fluorophore at the C-terminal, quencher at the N-terminal and protease cleavage site in the middle of the sequence). Upon contact with a proteolytic moiety, the quencher is cleaved off the peptide and a gain in fluorescence can be observed.
Fractal curvature measures and Minkowski content for one-dimensional self-conformal sets
Creators: name: Kesseböhmer, Marc
name: Kombrink, Sabrina
Publisher: name: arXiv
Year: 2010
Subjects: subject: Metric Geometry (math.MG)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 28A80, 28A75, 60K05

description: We show that the fractal curvature measures of invariant sets of one-dimensional conformal iterated function systems satisfying the open set condition exist, if and only if the associated geometric potential function is nonlattice. Moreover, in the nonlattice situation we obtain that the Minkowski content exists and prove that the fractal curvature measures are constant multiples of the $δ$-conformal measure, where $δ$ denotes the Minkowski dimension of the invariant set. For the first fractal curvature measure, this constant factor coincides with the Minkowski content of the invariant set. In the lattice situation we give sufficient conditions for the Minkowski content of the invariant set to exist, contrasting the fact that the Minkowski content of a self-similar lattice fractal never exists. However, every self-similar set satisfying the open set condition exhibits a Minkowski measurable $\mathcal{C}^{1+α}$ diffeomorphic image. Both in the lattice and nonlattice situation average versions of the fractal curvature measures are shown to always exist.
description: 36 pages
Superconductivity and electronic structure of KFe2As2, RbFe2As2, and CsFe2As2 probed by thermal expansion and magnetostriction at very low temperatures
Creators: name: Eilers, Felix
Publisher: name: Karlsruhe
Year: 2014

description: This thesis compares the iron-based superconductors KFe2As2, RbFe2As2, and CsFe2As2 based on thermal expansion and magnetostriction measurements at temperatures between 50 mK and 4 K and in magnetic fields up to 14 T. The upper critical field is paramagnetically limited for magnetic fields applied parallel to the FeAs layers. Quantum oscillations of the magnetostriction yield extremal cross-sectional areas of the Fermi surface and effective quasiparticle masses, which are enhanced considerably.
Fundamental studies of electrocatalysis for ethanol fuel cells by DFT atomistic simulation
Creators: name: Lin, Yuzhu
Publisher: name: Loughborough University
Year: 2023
Subjects: Chemical engineering not elsewhere classified

description: The ethanol oxidation reaction (EOR) has gained tremendous attention worldwide in electrocatalysis and fuel cells. Ethanol as a fuel has superiority in sustainability, renewability, low toxicity, and high theoretical energy den-sity compared with hydrogen and methanol. The electrooxidation of ethanol is hard to be achieved without the help of platinum (Pt)-group catalysts. How-ever, the scarcity of Pt has led to its high price, which significantly limits industrial production. Much effort has been devoted to palladium (Pd), an-other Pt-group metal with a larger reserve than Pt. A great many experimental works have been conducted to search for high-performance Pd-based cata-lysts. However, theoretical research is still lacking, including the mechanistic investigation and the rational design of electrocatalysts. Therefore, the first-principle calculations within the density functional theory (DFT) framework, which are powerful tools for theoretical studies, explore the heterogeneous catalytic reaction in direct ethanol fuel cell (DEFC). The ethanol electrooxi-dation reaction on Pd and Pd-based systems is studied, mainly on the activity and selectivity, respectively. [...]
Das Elektrofahrzeug als flexibler Verbraucher und Energiespeicher im Smart Home
Creators: name: Mültin, Marc
Publisher: name: Karlsruhe
Year: 2014
Subjects: Elektrofahrzeug
Smart Home
ISO/IEC 15118
gesteuertes Laden
E-Roaming

description: Die vorliegende Arbeit beschäftigt sich mit der Integration eines rückspeisefähigen Elektrofahrzeugs in das Energiemanagement-System eines Smart Home. Ziel ist es, das Elektrofahrzeug bestmöglich als flexibel steuerbaren Verbraucher und Energiespeicher zu nutzen und somit die lokale Eigenstromnutzung zu maximieren sowie Stromkosten zu senken. Der Informationsaustausch zwischen Elektrofahrzeug und Energiemanagement-System wird über den Kommunikationsstandard ISO/IEC 15118 realisiert.
Corrosion and scaling in utilization of geothermal energy in the Upper Rhine graben
Creators: name: Mundhenk, Niklas
Publisher: name: Karlsruhe
Year: 2013
Subjects: Corrosion
scaling
geothermal
brine
metal

description: Corrosion and scaling are two obstructive processes that occur in geothermal industry as a consequence of the chemical characteristics of the geothermal fluid. Here, an experimental approach was chosen to understand the reactions on the material/fluid interface. In-situ and laboratory experiments reveal various types of corrosion phenomena and scale minerals. The outcome of this works establishes a better understanding of the processes that govern the resistance of the materials.
X-ray investigation of defects in III-nitrides and their alloys
Creators: name: Lazarev, Sergey
Publisher: name: Karlsruhe
Year: 2013
Subjects: X-ray
III-nitrides
defects
threading dislocations
stacking faults

description: In this work structural defects in III-nitrides were investigated mainly using X-ray diffraction method. Williamson-Hall plots and Monte Carlo simulations were used to determine the density of threading dislocations in epilayers with different layer thicknesses. The density of basal plane stacking faults in semipolar (10-11) and (11-22) GaN layers grown on prepatterned sapphire substrates were derived and the dependence of crystallographic orientation of the layers and SiN mask intercalation on structure perfection, was examined.
On the computation of non-perturbative effective potentials in the string theory landscape -- IIB/F-theory perspective
Creators: name: Cvetič, Mirjam
name: García-Etxebarria, Iñaki
name: Halverson, James
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Algebraic Geometry (math.AG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We discuss a number of issues arising when computing non-perturbative effects systematically across the string theory landscape. In particular, we cast the study of fairly generic physical properties into the language of computability/number theory and show that this amounts to solving systems of diophantine equations. In analogy to the negative solution to Hilbert's 10th problem, we argue that in such systematic studies there may be no algorithm by which one can determine all physical effects. We take large volume type IIB compactifications as an example, with the physical property of interest being the low-energy non-perturbative F-terms of a generic compactification. A similar analysis is expected to hold for other kinds of string vacua, and we discuss in particular the extension of our ideas to F-theory. While these results imply that it may not be possible to answer systematically certain physical questions about generic type IIB compactifications, we identify particular Calabi-Yau manifolds in which the diophantine equations become linear, and thus can be systematically solved. As part of the study of the required systematics of F-terms, we develop technology for computing Z_2 equivariant line bundle cohomology on toric varieties, which determines the presence of particular instanton zero modes via the Koszul complex. This is of general interest for realistic IIB model building on complete intersections in toric ambient spaces.
description: 52 pages. v2: Added refs, fixed typos
Towards a Sustainable Urban Metabolism: Algae-to-Energy Systems as Clean Cycles in the Urban Water Chain
Creators: name: Menger-Krug, Eve
Publisher: name: Karlsruhe
Year: 2013
Subjects: wastewater
resources
algae
urban metabolism

description: This study includes an analysis of the urban water chain in Germany (water supply, wastewater and sludge management); followed by an analysis of the integration of algae systems on the level of wastewater treatment plants. Then, the scope of the study is extended to put the results in context of the urban metabolism. The relevance of the urban water chain - with and without algae - for the urban energy balance and the urban flows of nutrients and anthropogenic micropollutants is assessed.
Aboriginal and Torres Strait Islander Health Workers and Practitioners and their role in cervical screening and self-collection in Australia: An Indigenist research approach.
Creators: name: Zammit, Claire
name: Morseu-Diop, Aminata
name: Leha, Desiree
name: Briscoe, Karl
name: Dennis, Jodie
name: Butler, Tamara
name: Nightingale, Claire
name: BROTHERTON, JULIA
name: Whop, Lisa
Publisher: name: The University of Melbourne
Year: 2025
Subjects: classificationCode: 420311
subject: Health systems
classificationCode: 420312
subject: Implementation science and evaluation
classificationCode: 420319
subject: Primary health care
classificationCode: 420605
subject: Preventative health care
classificationCode: 420602
subject: Health equity
classificationCode: 450409
subject: Aboriginal and Torres Strait Islander health services

description: Objectives/Purpose: The clinical practice guidelines for cervical screening suggest that Aboriginal and Torres Strait Islander health workers and practitioners can support self-collection cervical screening delivery. To our knowledge, there has been no research or systematic consultation with the Aboriginal and Torres Strait Islander health workforce regarding their involvement in implementing self-collection. We aimed to explore and describe how Aboriginal and Torres Strait Islander health professionals want to be involved in the implementation of cervical screening and/or self-collection in Australian National Cervical Screening Program.Methods/Project Description: Grounded in an Indigenist research approach and in partnership with the National Association of Aboriginal and Torres Strait Islander Health Workers and Practitioners the peak community-controlled health workforce organisation, this research utilises mixed-methods and implementation science theory. This study comprises: 1) a cross-sectional survey outlining current and desired roles of the workforce, 2) focus group discussions with members of the workforce to define and explore how the model of care (Aboriginal and Torres Strait Islander health worker/practitioner-led self-collection) would work in practice, 3) interviews with key policy stakeholders to understand policy levers to facilitate the implementation of this model of care.Results/Outcomes: To date, 104 Aboriginal and Torres Strait Islander health workers (37%) or practitioners (54.3%) have completed the cross-sectional survey with most respondents being from NSW (32%) and QLD (38%). Recruitment of health professionals for focus-group discussions has commenced and is expected to be completed by the end of 2023. We will present preliminary data from these phases. This research aligns with key strategic directions of the National Workforce Plan for the Aboriginal and Torres Strait Islander Health Workforce and will create an evidence base for health worker/practitioner-led models of care in cancer screening.
Periodic bounce orbits of prescribed energy
Creators: name: Albers, Peter
name: Mazzucchelli, Marco
Publisher: name: arXiv
Year: 2010
Subjects: subject: Dynamical Systems (math.DS)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: 34C25, 57R17, 37J10

description: We prove the existence of periodic bounce orbits of prescribed energy on an open bounded domain in Euclidean space. We derive explicit bounds on the period and the number of bounce points.
description: 18 pages, 3 figures; v2: improved main result, removed typos
Dimension reduction using Independent Component Analysis with an application in business psychology
Creators: name: Shchurenkova, Elena
Publisher: name: University of British Columbia
Year: 2017

description: Independent component analysis (ICA) is used for separating a set of mixed signals into statistically independent additive subcomponents. The methodology extracts as many independent components as there are dimensions or features in the original dataset. Since not all of these components may be of importance, a few solutions have been proposed to reduce the dimension of the data using ICA. However, most of these solutions rely on prior knowledge or estimation of the number of independent components that are to be used in the model. This work proposes a methodology that addresses the problem of selecting fewer components than the original dimension of the data that best approximate the original dataset without prior knowledge or estimation of their number. The trade off between the number of independent components retained in the model and the loss of information is explored. This work presents mathematical foundations of the proposed methodology as well as the results of its application to a business psychology dataset.
Aboriginal and Torres Strait Islander Health Workers and Practitioners and their role in cervical screening and self-collection in Australia: An Indigenist research approach.
Creators: name: Zammit, Claire Maria
name: Zammit, Claire
name: Morseu-Diop, Aminata
name: Leha, Desiree
name: Briscoe, Karl
name: Dennis, Jodie
name: Butler, Tamara
name: Nightingale, Claire
name: BROTHERTON, JULIA
name: Whop, Lisa
Publisher: name: The University of Melbourne
Year: 2025
Subjects: classificationCode: 420311
subject: Health systems
classificationCode: 420312
subject: Implementation science and evaluation
classificationCode: 420319
subject: Primary health care
classificationCode: 420605
subject: Preventative health care
classificationCode: 420602
subject: Health equity
classificationCode: 450409
subject: Aboriginal and Torres Strait Islander health services

description: Objectives/Purpose: The clinical practice guidelines for cervical screening suggest that Aboriginal and Torres Strait Islander health workers and practitioners can support self-collection cervical screening delivery. To our knowledge, there has been no research or systematic consultation with the Aboriginal and Torres Strait Islander health workforce regarding their involvement in implementing self-collection. We aimed to explore and describe how Aboriginal and Torres Strait Islander health professionals want to be involved in the implementation of cervical screening and/or self-collection in Australian National Cervical Screening Program.Methods/Project Description: Grounded in an Indigenist research approach and in partnership with the National Association of Aboriginal and Torres Strait Islander Health Workers and Practitioners the peak community-controlled health workforce organisation, this research utilises mixed-methods and implementation science theory. This study comprises: 1) a cross-sectional survey outlining current and desired roles of the workforce, 2) focus group discussions with members of the workforce to define and explore how the model of care (Aboriginal and Torres Strait Islander health worker/practitioner-led self-collection) would work in practice, 3) interviews with key policy stakeholders to understand policy levers to facilitate the implementation of this model of care.Results/Outcomes: To date, 104 Aboriginal and Torres Strait Islander health workers (37%) or practitioners (54.3%) have completed the cross-sectional survey with most respondents being from NSW (32%) and QLD (38%). Recruitment of health professionals for focus-group discussions has commenced and is expected to be completed by the end of 2023. We will present preliminary data from these phases. This research aligns with key strategic directions of the National Workforce Plan for the Aboriginal and Torres Strait Islander Health Workforce and will create an evidence base for health worker/practitioner-led models of care in cancer screening.
Global and Local Effects of Rotation: Observational Aspects
Creators: name: Godlowski, Wlodzimierz
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In the paper we discussed the observational aspects of rotation in the Universe on different scales. We show dependence between the angular momentum of the structures and their size. The presented observational situation is that the galaxies, their pairs and compact groups have a non-vanishing angular momentum. In the structures of mass corresponding to groups of galaxies, this feature has not been found, while in the clusters and superclusters alignment of galaxy orientation has been actually found. Also we know that galaxies have net angular momentum due to the fact that we actually measure the rotation curves of galaxies. These facts lead to the conclusion that theories which connect galaxy angular momentum with its surrounding structure are at some extend favored by data. We show that in the light of scenarios of galaxy formations this result could be interpreted as an effect of tidal forces mechanism, but it is also consistent with Li's model, in which galaxies form in the rotating universe. The theoretical and observational aspects of possible global rotation of the Universe were discussed as well.
description: IJMPD accepted
Greetings from the City of New York
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2015
Subjects: subject: Building
subject: FOS: Civil engineering
subject: Monuments

description: Vignette images of Statue of Liberty, High Bridge, St Patricks Cathedral, the Obelisk, Central Park, Flat-iron Building, Columbus Monument, Soldier & Sailors Monument
RecQ-like helicase SGS1 counteracts DNA : RNA hybrid induced genome instability
Creators: name: Novoa, Carolina
Publisher: name: University of British Columbia
Year: 2017

description: Dividing cells are constantly under threat from both endogenous and exogenous DNA damaging stresses that can lead to mutations and structural variations in DNA. One contributor to genome instability is three-stranded DNA:RNA hybrid structures called R-loops. Though R-loops are known to induce DNA damage and DNA replication stress, it is unclear whether they are recognized and processed by an established DNA repair pathway prior to inducing DNA breaks. Canonically, DNA repair proteins work downstream of R-loop-induced DNA damage to stimulate repair and suppress genome instability. Recently, the possibility that some DNA repair pathways actively destabilize R-loops, thus preventing unscheduled DNA damage has emerged. Here we identify the helicase SGS1 as a suppressor of R-loop stability. Our data reveals that SGS1 depleted cells accumulate R-loops. In addition, we define a role for transcription in genome instability of cells lacking SGS1, which is consistent with an R-loop based mechanism. Hyper-recombination in SGS1 mutants is dependent on transcript length, transcription rate, and active DNA replication. Also, rDNA instability in sgs1Δ can be suppressed by ectopic expression of RNaseH1, a protein that degrades DNA:RNA hybrids. Interestingly, R-loops are known to form at rDNA loci. We favour a model in which SGS1 contributes to the stabilization of stalled replication forks associated with transcription complexes, and unresolved DNA:RNA hybrids. Finally, we showed that knockdown of the human Sgs1 orthologue BLM in HCT116 cells also led to the accumulation of more R-loops than control HCT116 cells. In summary, our data supports the idea that some DNA repair proteins involved in replication fork stabilization might also prevent and process R-loops.
Yukawa alignment from natural flavor conservation
Creators: name: Cree, Graham
name: Logan, Heather E.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the charged Higgs couplings to fermions in the "democratic" three-Higgs-doublet model, in which one doublet couples to down-type quarks, one to up-type quarks, and one to charged leptons. Flavor-changing neutral Higgs couplings are absent because the Glashow-Weinberg-Paschos condition for natural flavor conservation is in effect. We show that this model reproduces the coupling structure of the charged Higgs boson in the recently-proposed Yukawa-aligned two-Higgs-doublet model, with two subtle constraints that arise from the unitarity of the charged Higgs mixing matrix. Adding a fourth Higgs doublet with no couplings to fermions eliminates these constraints.
description: 12 pages, no figures. v2: minor improvements to text, references added, submitted to PRD. v3: added appendix on 3HDM scalar potential, accepted by PRD
Critical Correlations for Short-Range Valence-Bond Wave Functions on the Square Lattice
Creators: name: Albuquerque, A. Fabricio
name: Alet, Fabien
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the arguably simplest $SU(2)$-invariant wave functions capable of accounting for spin-liquid behavior, expressed in terms of nearest-neighbor valence-bond states on the square lattice and characterized by different topological invariants. While such wave-functions are known to exhibit short-range spin correlations, we perform Monte Carlo simulations and show that four-point correlations decay algebraically with an exponent $1.16(4)$. This is reminiscent of the {\it classical} dimer problem, albeit with a slower decay. Furthermore, these correlators are found to be spatially modulated according to a wave-vector related to the topological invariants. We conclude that a recently proposed spin Hamiltonian that stabilizes the here considered wave-function(s) as its (degenerate) ground-state(s) should exhibit gapped spin and gapless non-magnetic excitations.
description: 4 pages, 5 figures. Updated version