cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Modulation of Landau levels and de Haas-van Alphen oscillation in magnetized graphene by uniaxial tensile strain/ stress
Creators: name: Le, Dai-Nam
name: Le, Van-Hoang
name: Roy, Pinaki
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The strain engineering technique allows us to alter the electronic properties of graphene in various ways. Within the continuum approximation, the influences of strain result in the appearance of a pseudo-gauge field and modulated Fermi velocity. In this study, we investigate theoretically the effect of linear uniaxial tensile strain and/or stress, which makes the Fermi velocity anisotropic, on a magnetized graphene sheet in the presence of an applied electrostatic voltage. More specifically, we analyze the consequences of the anisotropic nature of the Fermi velocity on the structure Landau levels and de Haas - van Alphen (dHvA) quantum oscillation in the magnetized graphene sheet. The effect of the direction of the applied strain has also been discussed.
description: 20 pages
Additional file 1 of Understanding the impact of COVID-19 on youth sport in Australia and consequences for future participation and retention
Creators: name: Elliott, Sam
name: M. J. Drummond
name: I. Prichard
name: R. Eime
name: C. Drummond
name: R. Mason
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1. File 1: Interview guide (adults). Semi-structured interview guide
Held, Heinz Joachim (hrsg.): Der bischöfliche Dienst in der Kirche ...
Creators: name: Vo.
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 42 Nr. 2 (1993): Ökumenische Rundschau, Band 42, Heft 2
Self-excited vibrations of rotating discs and shafts with applications to sawing and milling
Creators: name: Tian, Jifang
Publisher: name: University of British Columbia
Year: 2009

description: This thesis investigates a number of major self-excited vibrations and instabilities that are involved in the interactions between moving flexible components, such as rotating discs or rotating shafts, and stationary systems, such as work-pieces or constrained systems. These investigations are applicable to a broad range of problems involved in the rotor-stator interactions. As an application, an undesirable lateral self-excited vibration in wood cutting called washboarding is studied theoretically and experimentally. A thorough investigation in selfexcited instabilities due to multiple moving interactions between the saw blade and work-piece such as regenerative cutting force, non-conservative following cutting forces and in-plane asymmetric stress fields are simulated and presented based on a number of new developments in modelling and algorithms. A new theoretical approach for the prediction of chatter in rnilling is also proposed based on a dynamic rnilling model including a rotating spindle. The stability characteristics of this imlling system are investigated by using the generalized Fourier series Method presented in this thesis. A comprehensive experimental study on the self-excited lateral vibration in the wood cutting and washboarding phenomenon was conducted to verify the simulations. A side-cut experiment using the pendulum cutting rig was also conducted in order to support the modelling of regenerative cutting force. To detect the self-excited vibration modes during cutting experimentally, several efficient methods and algorithms of identifying travelling modes, such as the Artificial Damping Method, are also proposed and presented in this thesis.
Additional file 2 of Understanding the impact of COVID-19 on youth sport in Australia and consequences for future participation and retention
Creators: name: Elliott, Sam
name: M. J. Drummond
name: I. Prichard
name: R. Eime
name: C. Drummond
name: R. Mason
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2. File 2: Focus group guide/interview guide (children). Semi-structured interview guide
Schoonenberg, Piet: Der Geist, der Sohn und das Wort
Creators: name: Link-Wieczorek, Ulrike
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 42 Nr. 2 (1993): Ökumenische Rundschau, Band 42, Heft 2
QCD condensates with flavor SU(3) symmetry breaking from the instanton vacuum
Creators: name: Nam, Seung-il
name: Kim, Hyun-Chul
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the effects of flavor SU(3)-symmetry breaking on the quark, gluon, and mixed quark-gluon condensates, based on the nonlocal effective chiral action from the instanton vacuum. We employ two different parameterizations for the dependence of the momentum-dependent dynamical quark mass on the strange current quark mass. With a proper choice of the current-quark mass dependence of the dynamical quark mass, we show that the gluon condensate is independent of the current quark mass. We obtain the ratios of the quark and mixed condensates, respectively: $[/< \bar{u}u>]^{1/3}=0.75$ and $[ ]^{1/5}=0.87$. It turns out that the dimensional parameter $m^2_0=/ =1.60\sim 1.92 {\rm GeV}^2$.
description: 12 pages, 4 figures, accepted for publication in Phys.Lett.B
China’s Carbon Market: Development, Evaluation, Coordination of Local and National Carbon Markets and Common Prosperity
Creators: name: Zhang, ZhongXiang
name: Zhang, ZhongXiang
Publisher: name: Unknown
Year: 2022
Subjects: subject: Community/Rural/Urban Development
subject: Environmental Economics and Policy
subject: International Development
subject: carbon market
subject: carbon price
subject: electricity market
subject: allowance allocation
subject: common prosperity

description: To achieve the commitments to both carbon peaking and carbon neutrality, China should focus on those policies of significant impact on emissions reduction at the lowest cost. Launching the national carbon market with the power generation sector is a good start point in this direction. Since its operation, the carbon price has not experienced sharp fluctuations, and falls within a range of CNY40~60 per ton. The block agreement transaction dominates trading, but with an average discount rate of 9.6% in block agreement, the aforementioned carbon prices overestimate the overall carbon prices. While the overall compliance rate measured against entities reached about 94.4%, there are significant differences across provinces, with compliance rate ranging from 82.9% to a full 100% compliance. Entities engaging in trading are mainly for compliance, and therefore transaction is driven by compliance. This article argues that the development of the carbon market requires further reform of the electricity pricing mechanism and the coordinated development of various related markets. With respect to national carbon trading scheme itself, the article discusses the areas where more work needs to be done to ensure that the national carbon emissions trading scheme functions properly. This involves carbon emissions trading legislation, further improvement in the rules conducive to the use of carbon emissions trading as a market tool, and the expansion of the participating industries and the scope of the carbon market in terms of diversifying market players and increasing trading varieties. Given the co-existence of the national carbon market and regional carbon market pilots, the article suggests the specific areas for the regional carbon markets to take the initiative to strengthen the synergistic effects of national carbon market. Furthermore, the article strongly recommends to continuously increase the proportion of carbon allowances auctions, and to set up a transformation fund from the proceeds of paid allocation of allowances to support the transformation and upgrading of regions with low levels of development and technology in China.
SN/GRB connection: a statistical approach with BATSE and Asiago Catalogues
Creators: name: Valenti, S.
name: Cappellaro, E.
name: Della Valle, M.
name: Frontera, F.
name: Guidorzi, C.
name: Montanari, E.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recent observations suggest that some types of GRB are physically connected with SNe of type Ib/c. However, it has been pointed out by several authors that some GRBs could be associated also with other types of core-collapse SNe (type IIdw/IIn). On the basis of a comphrensive statistical study, which has made use of the BATSE and Asiago catalogues, we have found that: i) the temporal and spacial distribution of SNe-Ib/c is marginally correlated with that of the BATSE GRBs; ii) we do not confirm the existence of an association between GRBs and SNe-IIdw/IIn.
description: Proceeding of the 4th workshop on Gamma Ray Bursts in the Afterglow Era, Rome, 2004; 4 pages
Competing effective interactions of Dirac electrons in the Spin-Fermion system
Creators: name: Marino, E. C.
name: Nunes, Lizardo H. C. M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Recently discovered advanced materials, such as heavy fermions, frequently exhibit a rich phase diagram suggesting the presence of different competing interactions. A unified description of the origin of these multiple interactions, albeit very important for the comprehension of such materials is, in general not available. It would be therefore very useful to have a simple model where the common source of different interactions could be possibly traced back. In this work we consider a system consisting in a set of localized spins on a square lattice with antiferromagnetic nearest neighbors interactions and itinerant electrons, which are assumed to be Dirac-like and interact with the localized spins through a Kondo magnetic interaction. This system is conveniently described by the Spin-Fermion model, which we use in order to determine the effective interactions among the itinerant electrons. By integrating out the localized degrees of freedom we obtain a set of different interactions, which includes: a BCS-like superconducting term, a Nambu-Jona-Lasinio-like, excitonic term and a spin-spin magnetic term. The resulting phase diagram is investigated by evaluation of the mean-field free-energy as a function of the relevant order parameters. This shows the competition of the above interactions, depending on the temperature, chemical potential and coupling constants.
description: arXiv admin note: substantial text overlap with arXiv:1109.2151
Lexical elicitation: Numerals 11-15, 30, 40, 50, 60
Creators: name: Sales, Henry
name: Garvin, Karee
name: Hermalin, Noah
name: Melguy, Yevgeniy
name: Michael, Lev
name: Scott, Tessa
name: Wilbanks, Eric
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: mam

description: Lead elicitor and scribe: Lev Michael. Clean copy: Yevgeniy Melguy.
Consequences of Dirac Theory of the Positron
Creators: name: Heisenberg, W.
name: Euler, H.
Publisher: name: arXiv
Year: 2006
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: According to Dirac's theory of the positron, an electromagnetic field tends to create pairs of particles which leads to a change of Maxwell's equations in the vacuum. These changes are calculated in the special case that no real electrons or positrons are present and the field varies little over a Compton wavelength.
description: Translation of historic paper "Folgerungen aus der Diracschen Theorie des Positrons" Zeitschr. Phys. 98, 714 (1936); translated by W. Korolevski and H. Kleinert, FU-Berlin
Thesis_WickyJ_ModelsandBoundaryData
Creators: name: Wicky, Jonas
Publisher: name: figshare
Year: 2021
Subjects: subject: 40602 Glaciology
subject: FOS: Earth and related environmental sciences

description: Model files and boundary data related to the thesis

Air Convection in Coarse Blocky Permafrost: A Numerical Modelling Approach to Improve the Understanding of the Ground Thermal Regime

by Jonas Wicky, supervised by Prof. Christian Hauck at the Department of Geosciences, University of Fribourg

Contact: jonas.wicky@unifr.ch

The files may be accessed and reused, but the authorship needs to be credited.
Numerical simulation of magnetization process in antiferromagnetic ferromagnetic bilayer with compensated interface
Creators: name: Usov, N. A.
name: Gudoshnikov, S. A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The properties of antiferromagnetic ferromagnetic bilayer have been studied using self-consistent mean-field approximation for Heisenberg Hamiltonian. The perpendicular exchange coupling has been revealed in a bilayer with a compensated interface. For a uniform antiferromagnetic film a symmetrical hysteresis loop has been calculated, because the transverse instability develops within the antiferromagnetic film at certain critical value of external magnetic field. On the other hand, shifted hysteresis loop with a finite exchange bias field has been obtained for a non-uniform antiferromagnetic film consisting of various domains with perpendicular directions of the easy anisotropy axes.
description: 6 pages, 4 figures
Tristability in viscoelastic flow past side-by-side microcylinders
Creators: name: Hopkins, Cameron C.
name: Haward, Simon J.
name: Shen, Amy Q.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Viscoelastic flows through microscale porous arrays exhibit complex path-selection and switching phenomena. However, understanding this process is limited by a lack of studies linking between a single object and large arrays. Here, we report experiments on viscoelastic flow past side-by-side microcylinders with variable intercylinder gap. With increasing flow rate, a sequence of two imperfect symmetry-breaking bifurcations forces selection of either one or two of the three possible flow paths around the cylinders. Tuning the gap length through the value where the first bifurcation becomes perfect reveals regions of bi and tristability in a dimensionless flow rate-gap length `phase' diagram.
description: 5 pages, 4 figures
Baxter Q-operators of the XXZ chain and R-matrix factorization
Creators: name: Derkachov, S.
name: Karakhanyan, D.
name: Kirschner, R.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We construct Baxter operators as generalized transfer matrices being traces of products of generic $R$ matrices. The latter are shown to factorize into simpler operators allowing for explicit expressions in terms of functions of a Weyl pair of basic operators. These explicit expressions are the basis for explicit expression for Baxter Q-operators and for investigating their properties.
description: 19 pages LaTex, references added
Subluminal to superluminal propagation of an optical pulse in an f-deformed Bose- Einstein condensate
Creators: name: Haghshenasfard, Z.
name: Naderi, M. H.
name: Soltanolkotabi, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper, we investigate the propagation of a weak optical probe pulse in an f-deformed Bose- Einstein condensate (BEC) of a gas with the -type three- level atoms in the electromagnetically induced transparency (EIT) regime. We use an f- deformed generalization of an effective two- level quantum model of the three- level configuration in which the Gardiner phonon operators for BEC are deformed by an operator- valued function, f(n), of the particle- number operator n. With making use of the quantum approach of the angular momentum theory we obtain the eigenvalues and eigenfunctions of the system up to first order approximation. We consider the collisions between the atoms as a special kind of f- deformation. The collision rate k is regarded as the deformation parameter and light propagation in the deformed BEC is analyzed. In particular, we show that the absorptive and dispersive properties of the deformed condensate can be controlled effectively by changing the deformation parameter k and the total number of atoms. We find that by increasing the value of k the group velocity of the probe pulse changes, through deformed condensate, from subluminal to superluminal.
description: 37 pages, 15 figures
Amalgamating Different JIT Compilations in a Meta-tracing JIT Compiler Framework
Creators: name: Izawa, Yusuke
name: Masuhara, Hidehiko
Publisher: name: arXiv
Year: 2020
Subjects: subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: Many modern virtual machines, such as JVMs, .NET Framework, and V8, employ a just-in-time (JIT) compiler to achieve their high-performance. There are two major compilation strategies; trace-based compilation and method-based compilation. They have their own advantages and disadvantages, so we presume that applying suitable strategies for different program parts is essential for faster execution. This paper proposes a new approach called the meta-hybrid JIT compiler framework, which combined the two strategies in a single meta-JIT compiler framework. We implemented the BacCaml framework for proof-of-concept. We also report that some programs actually ran faster by the hybrid compilation in our experiments.
A quantum critical superconducting phase transition in quasi-two-dimensional systems with Dirac electrons
Creators: name: Marino, E. C.
name: Nunes, Lizardo H. C. M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a theory describing the superconducting (SC) interaction of Dirac electrons in a quasi-two-dimensional system consisting of a stack of N planes. The occurrence of a SC phase is investigated both at T = 0 and T 5 0. At T = 0, we find a quantum phase transition connecting the normal and SC phases. Our theory qualitatively reproduces the SC phase transition occurring in the underdoped regime of the high-Tc cuprates. This fact points to the possible relevance of Dirac electrons in the mechanism of high-Tc superconductivity.
description: arXiv admin note: substantial text overlap with arXiv:cond-mat/0603165
Dispersive Riemann problem for the Benjamin-Bona-Mahony equation
Creators: name: Congy, T.
name: El, G. A.
name: Hoefer, M. A.
name: Shearer, M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Long time dynamics of the smoothed step initial value problem or dispersive Riemann problem for the Benjamin-Bona-Mahony (BBM) equation $u_t + uu_x = u_{xxt}$ are studied using asymptotic methods and numerical simulations. The catalog of solutions of the dispersive Riemann problem for the BBM equation is much richer than for the related, integrable, Korteweg-de Vries equation $u_t + uu_x + u_{xxx} =0.$ The transition width of the initial smoothed step is found to significantly impact the dynamics. Narrow width gives rise to rarefaction and dispersive shock wave (DSW) solutions that are accompanied by the generation of two-phase linear wavetrains, solitary wave shedding, and expansion shocks. Both narrow and broad initial widths give rise to two-phase nonlinear wavetrains or DSW implosion and a new kind of dispersive Lax shock for symmetric data. The dispersive Lax shock is described by an approximate self-similar solution of the BBM equation whose limit as $t \to \infty$ is a stationary, discontinuous weak solution. By introducing a slight asymmetry in the data for the dispersive Lax shock, the generation of an incoherent solitary wavetrain is observed. Further asymmetry leads to the DSW implosion regime that is effectively described by a pair of coupled nonlinear Schrödinger equations. The complex interplay between nonlocality, nonlinearity and dispersion in the BBM equation underlies the rich variety of nonclassical dispersive hydrodynamic solutions to the dispersive Riemann problem.
Detecting entanglement using a double quantum dot turnstile
Creators: name: Blaauboer, M.
name: DiVincenzo, D. P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a scheme based on using the singlet ground state of an electron spin pair in a double quantum dot nanostructure as a suitable set-up for detecting entanglement between electron spins via the measurement of an optimal entanglement witness. Using time-dependent gate voltages and magnetic fields the entangled spins are separated and coherently rotated in the quantum dots and subsequently detected at spin-polarized quantum point contacts. We analyze the coherent time evolution of the entangled pair and show that by counting coincidences in the four exits an entanglement test can be done. This set-up is close to present-day experimental possibilities and can be used to produce pairs of entangled electrons ``on demand''.
description: 5 pages, 2 figures - published version
A positive operator-valued measure for two-photon detection via sum-frequency generation
Creators: name: Merkouche, Sofiane
name: Thiel, Valérian
name: Smith, Brian J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Spontaneous parametric down conversion (PDC), in the perturbative limit, can be considered as a probabilistic splitting of one input photon into two output photons. Conversely, sum-frequency generation (SFG) implements the reverse process of combining two input photons into one. Here we show that a single-photon projective measurement in the temporal-mode basis of the output photon of a two-photon SFG process effects a generalized measurement on the input two-photon state. We describe the positive-operator-valued measure (POVM) associated with such a measurement, and show that its elements are proportional to the two-photon states produced by the time-reversed PDC process. Such a detection acts as a joint measurement on two photons, and is thus an important component of many quantum information processing protocols relying on photonic entanglement. Using the retrodictive approach, we analyze the properties of the two-photon POVM that are relevant for quantum protocols exploiting two-photon states and measurements.
description: 11 pages, 5 figures
Surface plasmon dielectric waveguides
Creators: name: Smolyaninov, Igor I.
name: Hung, Yu-Ju
name: Davis, Christopher C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We demonstrate that surface plasmon polaritons can be guided by nanometer scale dielectric waveguides. In a test experiment plasmons were coupled to a curved 3 micrometer radius dielectric stripe, which was 200 nm wide and 138 nm thick using a parabolic surface coupler. This experiment demonstrates that using surface plasmon polaritons the scale of optoelectronic devices based on dielectric waveguides can be shrunk by at least an order of magnitude.
description: 10 pages, 3 figs
Evolutionary modelling of subdwarf B stars using MESA with the predictive mixing and convective premixing schemes
Creators: name: Ostrowski, J.
name: Baran, A.
name: Sanjayan, S.
name: Sahoo, S. K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Results of evolutionary modelling of subdwarf B stars are presented. For the first time, we explore the core and near-core mixing in the subdwarf B stars using new algorithms available in the MESA code: the predictive mixing scheme and the convective premixing scheme. We show how both methods handle the problems with determination of convective boundary, discrepancy between core masses obtained from asteroseismology and evolutionary models, and long-standing problems related to the core-helium-burning phase such as splitting of the convective core and the occurrence of breathing pulses. We find that the convective premixing scheme is the preferable algorithm. The masses of the convective core in case of the predictive mixing and the combined convective and semiconvective regions in case of the convective premixing scheme are higher than in the models with only the Ledoux criterion, but they are still lower than the seismic-derived values. Both algorithms are promising and alternative methods of studying models of subdwarf B stars.
description: 16 pages, 14 figures, accepted for publication in MNRAS
Lexical elicitation: Singular possessives
Creators: name: Sales, Henry
name: Garvin, Karee
name: Hermalin, Noah
name: Melguy, Yevgeniy
name: Michael, Lev
name: Scott, Tessa
name: Wilbanks, Eric
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: mam

description: Lead elicitor and scribe: Lev Michael. Clean copy: Karee Garvin.
Branching Ratio and Polarization of $B\toρ(ω)ρ(ω)$ Decays in Perturbative QCD Approach
Creators: name: Li, Ying
name: Lu, Cai-Dian
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: In this work, we calculated the branching ratios, polarization fractions and CP asymmetry of decay modes $B\toρ(ω)ρ(ω)$ in the Perturbative QCD approach, which is based on $\mathbf{k}_T$ factorization. After calculation, we find the the branching ratios of $B^0 \to ρ^+ ρ^-$, $B^+ \to ρ^+ ρ^0$ and $B^+ \to ρ^+ ω$ are at the order of $10^{-5}$, and their longitudinal polarization fractions are more than 90%. The above results agree with BarBar's measurements. We also predict the branching ratios and polarizations of $B^0 \to ρ^0 ρ^0$, $B^0 \to ρ^0 ω$ and $B^0 \to ωω$, which will be measured in future. We predicted the CP asymmetry of $B^0 \to ρ^+ ρ^-$ and $B^+ \to ρ^+ ρ^0$, which will play important role in determining angle $α$.
description: 13 pages, 4 figures
Additional file 1 of Characteristics associated with uncomplicated pregnancies in women with obesity: a population-based cohort study
Creators: name: Relph, Sophie
name: Yanfang Guo
name: Harvey, Alysha L. J.
name: Vieira, Matias C.
name: Corsi, Daniel J.
name: Gaudet, Laura M.
name: Dharmintra Pasupathy
Publisher: name: figshare
Year: 2021
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1. STROBE checklist
Genetic modification of human hematopoietic stem cells
Creators: name: Conneally, Helen Ann
Publisher: name: University of British Columbia
Year: 2009

description: Human hematopoiesis originates in a population of stem cells with transplantable lympho-myeloid reconstituting potential but an in vivo method for quantitating these cells has not been available. In this study an assay was developed that allows human cord blood (CB) cells with in-vivo repopulating potential to be quantitated. It is based on the ability of immunodeficient mice to be engrafted by intravenously injected human hematopoietic cells and uses limiting dilution analysis to measure the frequency of human cells that produce both lymphoid and myeloid cells in the marrow of the recipient mice. The frequency of human competitive repopulating units (CRU) was shown to be ~1 per 6x10[superscript 5] light density CB cells, 1 per 900 CD34+CD38- CB cells and 1 per 18,000 CD34+CD38+ CB cells. In addition, it was demonstrated that under selected culture conditions, a significant expansion of both CRU and Long-Term Culture-Initiating Cells (LTC-IC) could be obtained. The ability to reliably transfer genes into hematopoietic stem cells remains an important but elusive goal. To date the power of recombinant retroviral gene transfer has been severely compromised by the low efficiency of retroviral infection. A series of experiments was undertaken to develop improved, clinically applicable, gene transfer conditions. These focused on the use of retroviral supernatant and the use of fibronectin coated dishes. The applicability of this protocol was tested by infecting CB cells capable of repopulating immunodeficient mice. The gene transfer efficiency as determined by G418-resistance to CRU and LTC-IC was 17 ± 3% and 17 ± 8 respectively. There was a significant correlation between the gene transfer to LTC-IC and CRU, however there was no correlation between gene transfer to CFC and LTC-IC or CFC and CRU. To further optimize the utility of recombinant retroviruses, the murine heat stable antigen (HSA) a cell surface antigen was developed as dominant selectable marker in a retroviral vector to enable the identification and selection of retrovirally marked human hematopoietic cells. Using this strategy, virtually pure populations of transduced hematopoietic cells including LTC-IC could be specifically isolated on the basis of their ability to express the transferred HSA gene. Taken together these studies provide a means to quantitate human in vivo repopulating cells and describe culture conditions that allows their modest expansion. The results indicate the utility of the NOD/SCID model for optimizing gene transfer to human repopulating cells. Additionally these studies have provided procedures which will allow purification of genetically modified cells ex vivo and the subsequent tracking of infected hematopoietic cells following transplantation. [Scientific formulae used in this abstract could not be reproduced.]
edATLAS: An Efficient Disambiguation Algorithm for Texting in Languages with Abugida Scripts
Creators: name: Ghosh, Sourav
name: Gothe, Sourabh Vasant
name: Sanchi, Chandramouli
name: Raja, Barath Raj Kandur
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Abugida refers to a phonogram writing system where each syllable is represented using a single consonant or typographic ligature, along with a default vowel or optional diacritic(s) to denote other vowels. However, texting in these languages has some unique challenges in spite of the advent of devices with soft keyboard supporting custom key layouts. The number of characters in these languages is large enough to require characters to be spread over multiple views in the layout. Having to switch between views many times to type a single word hinders the natural thought process. This prevents popular usage of native keyboard layouts. On the other hand, supporting romanized scripts (native words transcribed using Latin characters) with language model based suggestions is also set back by the lack of uniform romanization rules. To this end, we propose a disambiguation algorithm and showcase its usefulness in two novel mutually non-exclusive input methods for languages natively using the abugida writing system: (a) disambiguation of ambiguous input for abugida scripts, and (b) disambiguation of word variants in romanized scripts. We benchmark these approaches using public datasets, and show an improvement in typing speed by 19.49%, 25.13%, and 14.89%, in Hindi, Bengali, and Thai, respectively, using Ambiguous Input, owing to the human ease of locating keys combined with the efficiency of our inference method. Our Word Variant Disambiguation (WDA) maps valid variants of romanized words, previously treated as Out-of-Vocab, to a vocabulary of 100k words with high accuracy, leading to an increase in Error Correction F1 score by 10.03% and Next Word Prediction (NWP) by 62.50% on average.
description: Published in 2021 IEEE 15th International Conference on Semantic Computing (ICSC)
title: PD measurements on a DC gas-insulated transmission line (DC GIL) conducted in the frame of the Prototype Installation Test according to recommendation of CIGRE JWG D1/B3.57
Creators: name: Neumann, Claus
name: Hallas, Martin
name: Hinrichsen, Volker
name: Gross, Detlev
name: Geske, Moritz
name: Tenzer, Michael
Publisher: name: VDE Verlag
Year: 2022

description: There is a growing demand for DC long distance transmission, as the power generation increasingly takes place far away from the load centres. In many countries the transmissionlines in question have to be installed underground, due to environmental concernsandpolitical decisions. Besides DC cables DC gas-insulatedlines are an option. To gain long-term experience with this type of technology, CIGRE JWG D1/B3.57 suggests a PrototypeInstallation Test with a test duration of one year, by which the dielectric DC and overvoltage stress under real service conditions are reproduced and investigated. The gas-insulated line considered in this paper is designed for a rated DC voltage of #550 kV and a current carrying capability of 5000 A. It is installed at a HVDCtest facility at the Technical University of Darmstadt. For a long-term test with sufficient significance the insulating conditions of the test arrangement before and during long-term testing have to be monitored to observe the insulation performance. For this purpose an ultra-high-frequency partial discharge (UHF PD) monitoring system is installed, which is adapted for recording of PD under DC voltage stress. This system shall also be proven for condition monitoring of future DC GIL installations. With this regard, the UHF PD monitoring system installed and the method to detect and identify possible PD defects under DC voltage will be discussed. The measuring sensitivity of the installed UHF monitoring system was tested according to the recommendations given in CIGRE TB 654. As the DC GIL under considerationis a new design, sensitivity verification step 1 had to be performedfirst on a typical test assembly. Thesensitivity verification step 2 was carried out within the frame of the commissioningtests of the test arrangement. The UHF PDsignalattenuation and the sensitivity obtained between two adjacent sensors will be given. By means of the attenuation profile the sensor distance for future DC GIL installations can be estimated. During commissioning of the 100 m DC GIL prototype with DC test voltage a probable PD defect was detected by the monitoring system. Time of flight measurements were carried out in order to localise the defect. As no phase correlation of the PD pulses exists at DC voltage, pulse sequence analysis (PSA) had to be applied for PD defect identification. For this purpose investigations on the 100 m long DC GILinstallation were performed using PSA methods at rated voltages. Based on pre-investigations of typical PD defects under DC voltage, briefly given in this report, the PD defect detected onsite could be identified by PSA analysis. The analysis of the measured PD signal showed a good agreement with one reference signal analysis gained in the preinvestigations.
Explainable Reactive Synthesis
Creators: name: Baumeister, Tom
name: Finkbeiner, Bernd
name: Torfah, Hazem
Publisher: name: arXiv
Year: 2020
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: Reactive synthesis transforms a specification of a reactive system, given in a temporal logic, into an implementation. The main advantage of synthesis is that it is automatic. The main disadvantage is that the implementation is usually very difficult to understand. In this paper, we present a new synthesis process that explains the synthesized implementation to the user. The process starts with a simple version of the specification and a corresponding simple implementation. Then, desired properties are added one by one, and the corresponding transformations, repairing the implementation, are explained in terms of counterexample traces. We present SAT-based algorithms for the synthesis of repairs and explanations. The algorithms are evaluated on a range of examples including benchmarks taken from the SYNTCOMP competition.
description: Published at ATVA 2020
Perturbations of the seismic reflectivity of a fluid-saturated depth-dependent poro-elastic medium
Creators: name: De Barros, Louis
name: Dietrich, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Analytical formulas are derived to compute the first-order effects produced by plane inhomogeneities on the point source seismic response of a fluid-filled stratified porous medium. The derivation is achieved by a perturbation analysis of the poro-elastic wave equations in the plane-wave domain using the Born approximation. This approach yields the Fréchet derivatives of the P -- SV - and SH-wave responses in terms of the Green's functions of the unperturbed medium. The accuracy and stability of the derived operators are checked by comparing, in the time-distance domain, differential seismograms computed from these analytical expressions with complete solutions obtained by introducing discrete perturbations into the model properties. For vertical and horizontal point forces, it is found that the Fréchet derivative approach is remarkably accurate for small and localized perturbations of the medium properties which are consistent with the Born approximation requirements. Furthermore, the first-order formulation appears to be stable at all source-receiver offsets. The porosity, consolidation parameter, solid density and mineral shear modulus emerge as the most sensitive parameters in forward and inverse modeling problems. Finally, the Amplitude-Versus-Angle response of a thin layer shows strong coupling effects between several model parameters.
Mixed correlation function and spectral curve for the 2-matrix model
Creators: name: Bergere, Michel
name: Eynard, Bertrand
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We compute the mixed correlation function in a way which involves only the orthogonal polynomials with degrees close to $n$, (in some sense like the Christoffel Darboux theorem for non-mixed correlation functions). We also derive new representations for the differential systems satisfied by the biorthogonal polynomials, and we find new formulae for the spectral curve. In particular we prove the conjecture of M. Bertola, claiming that the spectral curve is the same curve which appears in the loop equations.
description: latex, 1 figure, 55 pages
Pulsating young brown dwarfs
Creators: name: Palla, Francesco
name: Baraffe, Isabelle
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of a nonadiabatic, linear stability analysis of models of very low-mass stars (VLMSs) and brown dwarfs (BDs) during the deuterium burning phase in the center. We find unstable fundamental modes with periods varying between ~5 hr for a 0.1 Msun star and ~1 hr for a 0.02 Msun BD. The growth time of the instability decreases with decreasing mass and remains well below the deuterium burning time scale in the mass range considered (0.1--0.02 Msun). These results are robust against variations of the relevant input physics in the evolutionary models. We identify possible candidates for pulsational variability among known VLMSs and BDs in nearby star forming regions whose location in the HR diagram falls within or close to the boundary of the instability strip. Finally, we discuss the possibility that the variability observed in a few objects with periods of ~1 hr can be interpreted in terms of pulsation.
description: 5 pages, 3 figures, A&A Letters (in press)
The prospects for observing [OIII] 52 micron emission from galaxies during the Epoch of Reionization
Creators: name: Yang, Shengqi
name: Lidz, Adam
name: Popping, Gergö
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The [OIII] 88 $μ$m fine structure emission line has been detected into the Epoch of Reionization (EoR) from star-forming galaxies at redshifts $6 < z \lesssim 9$ with ALMA. These measurements provide valuable information regarding the properties of the interstellar medium (ISM) in the highest redshift galaxies discovered thus far. The [OIII] 88 $μ$m line observations leave, however, a degeneracy between the gas density and metallicity in these systems. Here we quantify the prospects for breaking this degeneracy using future ALMA observations of the [\oiii] 52 $μ$m line. Among the current set of ten [OIII] 88 $μ$m emitters at $6 < z \lesssim 9$, we forecast 52 $μ$m detections (at 6-$σ$) in SXDF-NB1006-2, B14-6566, J0217-0208, and J1211-0118 within on-source observing times of 2-10 hours, provided their gas densities are larger than about $n_{\mathrm{H}} \gtrsim 10^2-10^3$ cm$^{-3}$. Other targets generally require much longer integration times for a 6-$σ$ detection. Either successful detections of the 52 $μ$m line, or reliable upper limits, will lead to significantly tighter constraints on ISM parameters. The forecasted improvements are as large as $\sim 3$ dex in gas density and $\sim 1$ dex in metallicity for some regions of parameter space. We suggest SXDF-NB1006-2 as a promising first target for 52 $μ$m line measurements. We discuss how such measurements will help in understanding the mass metallicity relationship during the EoR.
description: 5 pages, 2 figures. Added new section discussing the potential implications for the mass-metallicity relation
Additional file 2 of Characteristics associated with uncomplicated pregnancies in women with obesity: a population-based cohort study
Creators: name: Relph, Sophie
name: Yanfang Guo
name: Harvey, Alysha L. J.
name: Vieira, Matias C.
name: Corsi, Daniel J.
name: Gaudet, Laura M.
name: Dharmintra Pasupathy
Publisher: name: figshare
Year: 2021
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2: Appendix Table 1. Rate of specific antenatal complications in women with early pregnancy complicating factors, stratified by BMI group
Lexical elicitation: Numerals 5-10
Creators: name: Sales, Henry
name: Garvin, Karee
name: Hermalin, Noah
name: Melguy, Yevgeniy
name: Michael, Lev
name: Scott, Tessa
name: Wilbanks, Eric
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: mam

description: Lead elicitor and scribe: Lev Michael. Clean copy: Tessa Scott.
Annotation-Efficient Learning for Medical Image Segmentation based on Noisy Pseudo Labels and Adversarial Learning
Creators: name: Wang, Lu
name: Guo, Dong
name: Wang, Guotai
name: Zhang, Shaoting
Publisher: name: arXiv
Year: 2020
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Despite that deep learning has achieved state-of-the-art performance for medical image segmentation, its success relies on a large set of manually annotated images for training that are expensive to acquire. In this paper, we propose an annotation-efficient learning framework for segmentation tasks that avoids annotations of training images, where we use an improved Cycle-Consistent Generative Adversarial Network (GAN) to learn from a set of unpaired medical images and auxiliary masks obtained either from a shape model or public datasets. We first use the GAN to generate pseudo labels for our training images under the implicit high-level shape constraint represented by a Variational Auto-encoder (VAE)-based discriminator with the help of the auxiliary masks, and build a Discriminator-guided Generator Channel Calibration (DGCC) module which employs our discriminator's feedback to calibrate the generator for better pseudo labels. To learn from the pseudo labels that are noisy, we further introduce a noise-robust iterative learning method using noise-weighted Dice loss. We validated our framework with two situations: objects with a simple shape model like optic disc in fundus images and fetal head in ultrasound images, and complex structures like lung in X-Ray images and liver in CT images. Experimental results demonstrated that 1) Our VAE-based discriminator and DGCC module help to obtain high-quality pseudo labels. 2) Our proposed noise-robust learning method can effectively overcome the effect of noisy pseudo labels. 3) The segmentation performance of our method without using annotations of training images is close or even comparable to that of learning from human annotations.
description: 13 pages, 15 figures
Challenging the Security of Logic Locking Schemes in the Era of Deep Learning: A Neuroevolutionary Approach
Creators: name: Sisejkovic, Dominik
name: Merchant, Farhad
name: Reimann, Lennart M.
name: Srivastava, Harshit
name: Hallawa, Ahmed
name: Leupers, Rainer
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cryptography and Security (cs.CR)
subject: Machine Learning (cs.LG)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Logic locking is a prominent technique to protect the integrity of hardware designs throughout the integrated circuit design and fabrication flow. However, in recent years, the security of locking schemes has been thoroughly challenged by the introduction of various deobfuscation attacks. As in most research branches, deep learning is being introduced in the domain of logic locking as well. Therefore, in this paper we present SnapShot: a novel attack on logic locking that is the first of its kind to utilize artificial neural networks to directly predict a key bit value from a locked synthesized gate-level netlist without using a golden reference. Hereby, the attack uses a simpler yet more flexible learning model compared to existing work. Two different approaches are evaluated. The first approach is based on a simple feedforward fully connected neural network. The second approach utilizes genetic algorithms to evolve more complex convolutional neural network architectures specialized for the given task. The attack flow offers a generic and customizable framework for attacking locking schemes using machine learning techniques. We perform an extensive evaluation of SnapShot for two realistic attack scenarios, comprising both reference benchmark circuits as well as silicon-proven RISC-V core modules. The evaluation results show that SnapShot achieves an average key prediction accuracy of 82.60% for the selected attack scenario, with a significant performance increase of 10.49 percentage points compared to the state of the art. Moreover, SnapShot outperforms the existing technique on all evaluated benchmarks. The results indicate that the security foundation of common logic locking schemes is build on questionable assumptions. The conclusions of the evaluation offer insights into the challenges of designing future logic locking schemes that are resilient to machine learning attacks.
description: 25 pages, 17 figures, accepted at ACM JETC