cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Effect of Duschinskii Rotations on Spin-Dependent Electron Transfer Dynamics
Creators: name: Chandran, Suraj S.
name: Wu, Yanze
name: Subotnik, Joseph E.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We investigate spin-dependent electron transfer in the presence of a Duschinskii rotation. In particular, we propagate dynamics for a two-level model system for which spin-orbit coupling introduces an interstate coupling of the form $e^{iWx}$, which is both position(x)-dependent and complex-valued. We demonstrate that two-level systems coupled to Brownian oscillators with Duschinskii rotations (and thus entangled normal modes) can produce marked increases in transient spin polarization relative to two-level systems coupled to simple shifted harmonic oscillators. These conclusions should have significant relevance for modeling the effect of nuclear motion on chiral induced spin selectivity.
Radiative decay of the resonant $K^*$ and the $γK \to K π$ amplitude from lattice QCD
Creators: name: Radhakrishnan, Archana
name: Dudek, Jozef
name: Edwards, Robert
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present the first calculation in lattice QCD of the process $γK \to Kπ$ in which the narrow $K^*$ vector resonance appears. Using a lattice on which the pion has a mass of 284 MeV, we determine the transition amplitude at 128 points in the $(Q^2, E_{Kπ})$ plane, and find suitable resonant scattering descriptions. We demonstrate the need to account for $S$--wave $Kπ$ elastic scattering when converting the finite-volume matrix elements computed in lattice QCD to the physically relevant infinite-volume matrix elements, even when we are primarily interested in the $P$--wave amplitude. Analytically continuing parameterizations of the $γK \to Kπ$ amplitude to the $K^*$ resonance pole, we obtain the $K^{*+} \to K^+ γ$ transition form-factor, and compare the $Q^2=0$ value to the corresponding value extracted from the experimental partial-decay width.
Non-equilibrium phase and entanglement entropy in 2D holographic superconductors via Gauge-String duality
Creators: name: Mazhari, N. S.
name: Momeni, D.
name: Myrzakulov, R.
name: Gholizade, H.
name: Raza, M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: An alternative method of developing the theory of non-equilibrium two dimensional holographic superconductor is to start from the definition of a time dependent $AdS_3$ background. As originally proposed, many of these formulae were cast in exponential form, but the adoption of the numeric method of expression throughout the bulk serves to show more clearly the relationship between the various parameters. The time dependence behaviour of the scalar condensation and Maxwell fields are fitted numerically. A usual value for Maxwell field on AdS horizon is $\exp(-bt)$, and the exponential $\log$ ratio is therefore $10^{-8} s^{-1}$. The coefficient $b$ of the time in the exponential term $\exp(-bt)$ can be interpreted as a tool to measure the degree of dynamical instability, its reciprocal $\frac{1}{b}$ is the time in which the disturbance is multiplied in the ratio. A discussion of some of the exponential formulae is given by the scalar field $ψ(z,t)$ near the AdS boundary. It might be possible that a long interval would elapse the system which tends to the equilibrium state when the normal mass and conformal dimensions emerged. A somewhat curious calculation has been made, to illustrate the holographic entanglement entropy for this system. The foundation of all this calculation is, of course, a knowledge of multiple (connected and disconnected) extremal surfaces. There are several cases in which exact and approximate solutions are jointly used, a variable numerical quantity is represented by a graph, and the principles of approximation are then applied to determine related numerical quantities. In the case of the disconnected phase with a finite extremal are, we find a discontinuity in the first derivative of the entanglement entropy as the conserved charge $J$ is increased.
Flickering emergences: The question of locality in information-theoretic approaches to emergence
Creators: name: Varley, Thomas F.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Information Theory (cs.IT)
subject: Other Statistics (stat.OT)
subject: FOS: Computer and information sciences

description: "Emergence", the phenomenon where a complex system displays properties, behaviours, or dynamics not trivially reducible to its constituent elements, is one of the defining properties of complex systems. Recently, there has been a concerted effort to formally define emergence using the mathematical framework of information theory, which proposes that emergence can be understood in terms of how the states of wholes and parts collectively disclose information about the system's collective future. In this paper, we show how a common, foundational component of information-theoretic approaches to emergence implies an inherent instability to emergent properties, which we call flickering emergence. A system may on average display a meaningful emergent property (be it an informative coarse-graining, or higher-order synergy), but for particular configurations, that emergent property falls apart and becomes misinformative. We show existence proofs that flickering emergence occurs in two different frameworks (one based on coarse-graining and another based on multivariate information decomposition) and argue that any approach based on temporal mutual information will display it. Finally, we argue that flickering emergence should not be a disqualifying property of any model of emergence, but that it should be accounted for when attempting to theorize about how emergence relates to practical models of the natural world.
description: 17 pages, 5 figures
Tunable Polarization-Multiplexed Achromatic Dielectric Metalens
Creators: name: Ou, Xiangnian
name: Zeng, Tibin
name: Zhang, Yi
name: Jiang, Yuting
name: Gong, Zhongwei
name: Fan, Fan
name: Jia, Honghui
name: Duan, Huigao
name: Hu, Yueqiang
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Tunable metasurfaces provide a compact and efficient strategy for optical components that require active wavefront shaping. Varifocal metalens is one of the most important applications. However, the existing tunable metalens rarely serves broadband wavelengths restricting their applications in broadband imaging and color display due to chromatic aberration. Herein, we demonstrate an electrically tunable polarization-multiplexed varifocal achromatic dielectric metalens integrated with twisted nematic liquid crystals (TNLCs) in the visible region. The phase profiles at different wavelengths under two orthogonal polarization channels are customized by the particle swarm optimization algorithm and optimally matched with the metaunits database to achieve polarization-multiplexed dispersion manipulation including achromatic performance. By combining the broadband linear polarization conversion ability of TNLC, the tunability of varifocal achromatic metalens is realized by applying different voltages. Further, the electrically tunable customized dispersion-manipulated metalens and switchable color metaholograms are demonstrated. The proposed devices will accelerate the application of metasurfaces in broadband zoom imaging, AR/VR displays, and spectral detection.
Frustrated Ising chains on the triangular lattice in Sr$_3$NiIrO$_6$
Creators: name: Toth, S.
name: Wu, W.
name: Adroja, D. T.
name: Rayaprol, S.
name: Sampathkumaran, E. V.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Inelastic neutron scattering study on the spin-chain compound Sr$_3$NiIrO$_6$ reveals gapped quasi-1D magnetic excitations. The observed one-magnon band between 29.5 and 39 meV consists of magnon modes of the Ni$^{2+}$ ions. The fitting of the spin wave spectrum reveals strongly coupled Ising-like chains along the $c$-axis that are weakly coupled into a frustrated triangular lattice in the $ab$-plane. The magnetic excitations survive up to 200 K well above the magnetic ordering temperature of $T_N \sim 75$ K, also indicating a quasi-1D nature of the magnetic interactions in Sr$_3$NiIrO$_6$. Our microscopic model is in good agreement with ab initio electronic structure calculations and explains the giant spin flip field observed in bulk magnetization measurements.
description: 10 pages, 7 figures
Restoring ergodicity in a strongly disordered interacting chain
Creators: name: Krajewski, B.
name: Vidmar, L.
name: Bonca, J.
name: Mierzejewski, M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider a chain of interacting fermions with random disorder that was intensively studied in the context of many-body localization. We show that only a small fraction of the two-body interaction represents a true local perturbation to the Anderson insulator. While this true perturbation is nonzero at any finite disorder strength W, it decreases with increasing W. This establishes a view that the strongly disordered system should be viewed as a weakly perturbed integrable model, i.e., a weakly perturbed Anderson insulator. As a consequence, the latter can hardly be distinguished from a strictly integrable system in finite-size calculations at large W. We then introduce a rescaled model in which the true perturbation is of the same order of magnitude as the other terms of the Hamiltonian, and show that the system remains ergodic at arbitrary large disorder.
Respiratory function and lung structure in lambs following in utero treatment of lung hypoplasia by tracheal obstruction
Creators: name: Davey., Marcus Graeme
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Formation of Dissipative Structures in Microscopic Models of Mixtures with Species Interconversion
Creators: name: Longo, Thomas J.
name: Shumovskyi, Nikolay A.
name: Uralcan, Betül
name: Buldyrev, Sergey V.
name: Anisimov, Mikhail A.
name: Debenedetti, Pablo G.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The separation of substances into different phases is ubiquitous in nature and important scientifically and technologically. This phenomenon may become drastically different if the species involved, whether molecules or supramolecular assemblies, interconvert. In the presence of an external force large enough to overcome energetic differences between the interconvertible species (forced interconversion), the two alternative species will be present in equal amounts, and the striking phenomenon of steady-state, restricted phase separation into mesoscales is observed. Such microphase separation is one of the simplest examples of dissipative structures in condensed matter. In this work, we investigate the formation of such mesoscale steady-state structures through Monte Carlo and Molecular Dynamics simulations of three physically distinct microscopic models of binary mixtures that exhibit both equilibrium (natural) interconversion and a nonequilibrium source of forced interconversion. We show that this source can be introduced through an internal imbalance of intermolecular forces or an external flux of energy that promotes molecular interconversion, possible manifestations of which could include the internal nonequilibrium environment of living cells or a flux of photons. The main trends and observations from the simulations are well captured by a non-equilibrium thermodynamic theory of phase transitions affected by interconversion. We show how a nonequilibrium bicontinuous microemulsion or a spatially modulated state may be generated depending on the interplay between diffusion, natural interconversion, and forced interconversion.
description: Manuscript submitted as a contributed article to PNAS
Terahertz-driven, all-optical electron gun
Creators: name: Huang, W. Ronny
name: Fallahi, Arya
name: Wu, Xiaojun
name: Cankaya, Huseyin
name: Calendron, Anne-Laure
name: Ravi, Koustuban
name: Zhang, Dongfang
name: Nanni, Emilio A.
name: Hong, Kyung-Han
name: Kärtner, Franz X.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Ultrashort electron beams with narrow energy spread, high charge, and low jitter are essential for resolving phase transitions in metals, semiconductors, and molecular crystals. These semirelativistic beams, produced by phototriggered electron guns, are also injected into accelerators for x-ray light sources. The achievable resolution of these time-resolved electron diffraction or x-ray experiments has been hindered by surface field and timing jitter limitations in conventional RF guns, which thus far are <200 MV/m and >96 fs, respectively. A gun driven by optically-generated single-cycle THz pulses provides a practical solution to enable not only GV/m surface fields but also absolute timing stability, since the pulses are generated by the same laser as the phototrigger. Here, we demonstrate an all-optical THz gun yielding peak electron energies approaching 1 keV, accelerated by 300 MV/m THz fields in a novel micron-scale waveguide structure. We also achieve quasimonoenergetic, sub-keV bunches with 32 fC of charge, which can already be used for time-resolved low-energy electron diffraction. Such ultracompact, easy to implement guns driven by intrinsically synchronized THz pulses that are pumped by an amplified arm of the already present photoinjector laser provide a new tool with potential to transform accelerator based science.
description: 24 pages, 9 figures
Quantum Corrections to Pair Production of Charged Black Holes in de Sitter Space
Creators: name: Wang, Yu-Peng
name: Ma, Liang
name: Pang, Yi
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We compute Euclidean action of charged de Sitter black holes in four dimensional gravitational Euler-Heisenberg model. It turns out that the action of a general Euclidean dyonically charged black hole is still controlled by the total entropy contributed by the black hole outer horizon and the cosmological horizon. For smooth configurations, the Euclidean action can be interpreted as the black hole production rate in de Sitter space. We show that the 4-derivative couplings break the symmetry between the production rate of the purely electric black hole and that of the purely magnetic black hole. Although electromagnetic duality is no longer a symmetry, it induces a transformation on the 4-derivative couplings, mapping the physical quantities of a purely electric black hole to those of a purely magnetic black hole and vice versa. We also observe that under the same transformation, unitarity constraints on the 4-derivative couplings remain invariant.
description: 30 pages, 2 figures
What is Variable Bandwidth?
Creators: name: Gröchenig, Karlheinz
name: Klotz, Andreas
Publisher: name: arXiv
Year: 2015
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: We propose a new notion of variable bandwidth that is based on the spectral subspaces of an elliptic operator $A_pf = - (pf')'$ where $p>0$ is a strictly positive function. Denote by $c_Λ (A_p)$ the orthogonal projection of $A_p$ corresponding to the spectrum of $A_p$ in $Λ$, the range of this projection is the space of functions of variable bandwidth with spectral set in $Λ$. We will develop the basic theory of these function spaces. First, we derive (nonuniform) sampling theorems, second, we prove necessary density conditions in the style of Landau. Roughly, for a spectrum $Λ= [0,Ω] $ the main results say that, in a neighborhood of $x\in R$, a function of variable bandwidth behaves like a bandlimited function with local bandwidth $(Ω/ p(x))^{1/2}$. Although the formulation of the results is deceptively similar to the corresponding results for classical bandlimited functions, the methods of proof are much more involved. On the one hand, we use the oscillation method from sampling theory and frame theoretic methods, on the other hand, we need the precise spectral theory of Sturm-Liouville operators and the scattering theory of one-dimensional Schrödinger operators.
description: 40 pages
Electro-purification studies and first measurement of relative permittivity of TMBi
Creators: name: Peters, S.
name: Gerke, B.
name: Hannen, V.
name: Huhmann, C.
name: Marquardt, N.
name: Schäfers, K.
name: Yvon, D.
name: Sharyy, V.
name: Weinheimer, C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: A new type of detector for positron-emission tomography (PET) has been proposed recently, using a heavy organo-metallic liquid - TriMethyl Bismuth (TMBi) - as target material. TMBi is a transparent liquid with the high Z element Bismuth contributing 82% of its mass. 511keV annihilation photons are converted efficiently into photo-electrons within the detector material producing both Cherenkov light and free charge carriers in the liquid. While the optical component enables a fast timing, a charge readout using a segmented anode can provide an accurate position reconstruction and energy determination. The charge measurement requires a high level of purification, as any electronegative contaminants cause signal degradation. In addition to the purity requirements, the reactive nature of TMBi poses many challenges that need to be met until a fully functioning detector for PET applications can be realized. The paper presents an experimental setup that aims to remove electronegative impurities by electrostatic filtering and to characterise the properties of TMBi, e.g. the relative permittivity, for its application as a detector medium for charge read out.
Critical points of WAdS/CFT and higher-curvature gravity
Creators: name: Caselli, Gerónimo
name: Giribet, Gaston
name: Goya, Andrés
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: WAdS/WCFT correspondence is an interesting realization of non-AdS holography. It relates 3-dimensional Warped-Anti-de Sitter (WAdS$_3$) spaces to a special class of 2-dimensional quantum field theory with chiral scaling symmetry that acts only on right-moving modes. The latter are often called Warped Conformal Field Theories (WCFT$_2$), and their existence makes WAdS/WCFT particularly interesting as a tool to investigate a new type of 2-dimensional conformal structure. Besides, WAdS/WCFT is interesting because it enables to apply holographic techniques to the microstate counting problem of non-AdS, non-supersymmetric black holes. Asymptotically WAdS$_3$ black holes (WBH$_3$) appear as solutions of topologically massive theories, Chern-Simons theories, and many other models. Here, we explore WBH$_3\times Σ_{D-3}$ solutions of $D$-dimensional higher-curvature gravity, with $Σ_{D-3}$ being different internal manifolds, typically given by products of deformations of hyperbolic spaces, although we also consider warped products with time-dependent deformations. These geometries are solutions of the second order higher-curvature theory at special (critical) points of the parameter space, where the theory exhibits a sort of degeneracy. We argue that the dual (W)CFT at those points is actually trivial. In many respects, these critical points of WAdS$_3 \times Σ_{D-3}$ vacua are the squashed/stretched analogs of the AdS$_D$ Chern-Simons point of Lovelock gravity.
description: 14 pages
Nihonjin wa dô kanashimu ka – nichidoku no jishi izoku keijiban kôpasu to kinkô kôpasu wo mochiita „kanjô“ no gengo hyôgen hikaku no kokoromi = A cross-cultural comparison of emotional expression - Japanese and German Web forums for people in mourning
Creators: name: Oberwinkler, Michaela
Publisher: name: Universität Tübingen
Year: 2015
Subjects: subject: Japanologie , Gefühl
subject: 490

description: Zweitveröffentlichung
A Classifier-guided Approach for Top-down Salient Object Detection
Creators: name: Cholakkal, Hisham
name: Johnson, Jubin
name: Rajan, Deepu
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: We propose a framework for top-down salient object detection that incorporates a tightly coupled image classification module. The classifier is trained on novel category-aware sparse codes computed on object dictionaries used for saliency modeling. A misclassification indicates that the corresponding saliency model is inaccurate. Hence, the classifier selects images for which the saliency models need to be updated. The category-aware sparse coding produces better image classification accuracy as compared to conventional sparse coding with a reduced computational complexity. A saliency-weighted max-pooling is proposed to improve image classification, which is further used to refine the saliency maps. Experimental results on Graz-02 and PASCAL VOC-07 datasets demonstrate the effectiveness of salient object detection. Although the role of the classifier is to support salient object detection, we evaluate its performance in image classification and also illustrate the utility of thresholded saliency maps for image segmentation.
description: To appear in Signal Processing: Image Communication, Elsevier. Available online from April 2016
Characterization of the Methylthioadenosine Phosphorylase Polymorphism rs7023954 - Incidence and Effects on Enzymatic Function in Malignant Melanoma
Creators: name: Limm, K.
name: Dettmer, Katja
name: Reinders, Jörg
name: Oefner, Peter J.
name: Bosserhoff, A. K.
Publisher: name: Universität Regensburg
Year: 2016
Subjects: subject: CUTANEOUS MELANOMA; CELL-PROLIFERATION; EXPRESSION; MTAP; PROGRESSION; SURVIVAL; RISK; 5'-DEOXY-5'-METHYLTHIOADENOSINE; MECHANISMS; VARIANTS;
subject: 610 Medizin

description: Deficiency of methylthioadenosine phosphorylase (MTAP) supports melanoma development and progression through accumulation of its substrate 5'-methylthioadenosine (MTA), which leads amongst others to a constitutive inhibition of protein arginine methyltransferases (PRMTs) and activation of the transcription factor AP-1 via the receptor ADORA2B. Genetic association studies have also suggested that genetic polymorphism in MTAP may modulate the risk of melanoma. Here, we investigated the only globally common non-synonymous single nucleotide polymorphism (SNP) reported to date for MTAP. The SNP rs7023954 is located in exon 3 (c. 166G>A), and leads to the conservative substitution of one branched-chain amino acid residue (valine) for another (isoleucine) at position 56 (p. Val56lle). Whereas genotype frequencies in normal and primary melanoma tissues or cell lines were in Hardy-Weinberg equilibrium based on cDNA amplicon sequencing, a marked (P = 0.00019) deviation was observed in metastatic melanoma tissues and cell lines due to a deficit of heterozygotes. Enzyme assays conducted on the co-dominantly expressed alleles revealed no difference in the conversion rate of MTA to adenine and 5-methylthioribose-1-phosphate, indicating that this known enzymatic activity does not modulate the tumor suppressive function of MTAP.
The linear stability of the Schwarzschild solution to gravitational perturbations
Creators: name: Dafermos, Mihalis
name: Holzegel, Gustav
name: Rodnianski, Igor
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We prove in this paper the linear stability of the celebrated Schwarzschild family of black holes in general relativity: Solutions to the linearisation of the Einstein vacuum equations around a Schwarzschild metric arising from regular initial data remain globally bounded on the black hole exterior and in fact decay to a linearised Kerr metric. We express the equations in a suitable double null gauge. To obtain decay, one must in fact add a residual pure gauge solution which we prove to be itself quantitatively controlled from initial data. Our result a fortiori includes decay statements for general solutions of the Teukolsky equation (satisfied by gauge-invariant null-decomposed curvature components). These latter statements are in fact deduced in the course of the proof by exploiting associated quantities shown to satisfy the Regge--Wheeler equation, for which appropriate decay can be obtained easily by adapting previous work on the linear scalar wave equation. The bounds on the rate of decay to linearised Kerr are inverse polynomial, suggesting that dispersion is sufficient to control the non-linearities of the Einstein equations in a potential future proof of nonlinear stability. This paper is self-contained and includes a physical-space derivation of the equations of linearised gravity around Schwarzschild from the full non-linear Einstein vacuum equations expressed in a double null gauge.
description: 146 pages, 4 figures
Characterisation of a lymphostromal molecule involved in normal and leukaemic thymopoiesis
Creators: name: Davey., Gayle Maree
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Odderon and Pomeron as Fractal Dimension in $pp$ and $\bar{p}p$ Total Cross Sections
Creators: name: Borcsik, F. S.
name: Campos, S. D.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper one presents a naive parametrization to $pp$ and $\bar{p}p$ total cross sections. The main goal of this parametrization is to study the possible fractal structure present in the total cross section. The result of the fitting procedure shows two different fractal dimensions: a negative (low-energies) and a positive (high-energies). The negative fractal dimension represents the emptiness of the total cross section structure and the positive represents the filling up process with the energy increase. Hence, the total cross section presents a multifractal behavior. At low-energies, the odderon exchange may be associated with the negative fractal dimension and at high-energies, the pomeron may be associated with the positive fractal dimension. Therefore, the exchange of odderons and pomerons may be viewed as a transition from a less well-defined to a more well-defined internal structure, depending on the energy.
description: 8 pages, 3 figures
Growth of rare-earth monopnictide DySb single crystal by novel Self-flux method
Creators: name: Dasoundhi, Mukesh Kumar
name: Lakhani, Archana
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: This report presents a new synthesis protocol for the single crystal growth of rare earth monopnictide DySb by self-flux technique. A detailed structural, transport and magnetic characterization have been done using X-Ray diffraction (XRD), High resolution X-Ray diffraction (HRXRD), resistivity and magnetization measurements respectively. The Rietveld refinement of powder XRD pattern confirms that the grown crystal is in single phase and crystallizes in space group Fm3m(225) of rock-salt type crystal structure. HRXRD on cleaved crystal confirms the single crystalline nature while rocking curve analysis reveals the high quality of the grown crystal. Temperature dependent resistivity and magnetization measurements show a transition at 9.7K from paramagnetic (PM) to antiferromagnetic (AFM) state.
description: 4 pages, 5 figures
title: Safety and efficacy of laparoscopic liver resection during its implementation in a high volume liver center
Creators: name: Seehofer, Daniel
name: Sucher, Robert
name: Schmelzle, Moritz
name: Gül, Safak
name: Denecke, Timm
name: Zorron, Ricardo
name: Pratschke, Johann
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: 610 Medical sciences; Medicine

description: Background: Laparoscopic resections are increasingly applied also in liver surgery. Cosmetic advantages after laparoscopic procedures are evident. However also a shorter length of hospital stay, less wound infections and other complications might be achieved by minimal invasive procedures. We report[for full text, please go to the a.m. URL]
description: 133. Kongress der Deutschen Gesellschaft für Chirurgie
Computational Design of Crescent Shaped Promising NonFullerene Acceptors with 2,3-quinoxaline,1,4-dihydro Core and Different Electron-withdrawing Terminal Units for Photovoltaic Applications
Creators: name: Bhattacharya, Labanya
name: Brown, Alex
name: Sharma, Sagar
name: Sahu, Sridhar
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: This study aims to design a series of non-fullerene acceptors (NFAs) for photovoltaic applications having 2,3-quinoxalinedione,1,4-dihydro fused thiophene derivative as the core unit and 1,1-dicyanomethylene-3-indanone (IC) derivatives and different π-conjugated molecules other than IC as terminal acceptor units. All the investigated NFAs are found air-stable as the computed highest occupied molecular orbitals (HOMOs) are below the air oxidation threshold (ca. -5.27 eV vs. saturated calomel electrode). The studied NFAs can act as potential non-fullerene acceptor candidates as they are found to have sufficient open-circuit voltage (Voc) and fill factor (FF) ranging from 0.62-1.41 eV and 83%-91%, respectively. From the anisotropic mobility analysis, it is noticed that the studied NFAs except dicyano-rhodanine terminal unit containing NFA, exhibit better electron mobility than the hole mobility, and therefore, they can be more promising electron transporting acceptor materials in the active layer of an organic photovoltaic cell. From the optical absorption analysis, it is noted that all the designed NFAs have the maximum absorption spectra ranging from 597 nm-730 nm, which lies in the visible region and near infra-red (IR) region of the solar spectrum. The computed light-harvesting efficiencies for the PM6 (thiophene derivative donor selected in our study): NFA blends are found to lie in the range of 0.9589-0.9957, which indicates efficient light-harvesting by the PM6:NFA blends during photovoltaic device operation.
description: 10 Figures, 7tables. Under review
title: Der Einfluss des Spendergeschlechts auf Gefäßkomplikationen nach Leberlebendtransplantationen für Kinder im Säuglingsalter
Creators: name: Schulze, Maren
name: Schukfeh, Nagoud
name: Holland, Charlotte
name: Lainka, Elke
name: Kathemannn, Simone
name: Paul, Andreas
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: 610 Medical sciences; Medicine

description: Einleitung: Die Lebertransplantation im Säuglingsalter, stellt eine interdisziplinäre Herausforderung dar. Zu chirurgischen Problemen zählen Gefäßthrombosen, die sowohl das arterielle als auch das portalvenöse System betreffen. Diese treten gehäuft insbesondere bei[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 133. Kongress der Deutschen Gesellschaft für Chirurgie
Dyson-Schwinger equations and ${\cal N}=4$ SYM in Landau gauge
Creators: name: Maas, Axel
name: Zitz, Stefan
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: ${\cal N}=4$ Super Yang-Mills theory is a highly constrained theory, and therefore a valuable tool to test the understanding of less constrained Yang-Mills theories. Our aim is to use it to test our understanding of both the Landau gauge beyond perturbation theory as well as truncations of Dyson-Schwinger equations in ordinary Yang-Mills theories. We derive the corresponding equations within the usual one-loop truncation for the propagators after imposing the Landau gauge. We find a conformal solution in this approximation, which surprisingly resembles many aspects of ordinary Yang-Mills theories. We furthermore identify which role the Gribov-Singer ambiguity in this context could play, should it exist in this theory.
description: 17 pages
Generalized quasi, Ioffe-time, and pseudo quark distributions of the pion in the Nambu--Jona-Lasinio model
Creators: name: Shastry, Vanamali
name: Broniowski, Wojciech
name: Arriola, Enrique Ruiz
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We analyze the generalized quasi, Ioffe-time, and pseudo distributions of the valence quarks in the pion at the quark model scale. We use the framework of the Nambu-Jona-Lasinio model and investigate the basic question of how fast the pion has to move to effectively reach the infinite momentum limit, where the approach can provide the information on the generalized parton distribution functions. We consider both the vector distributions and the transversity distributions, related to the spin densities. With the developed analytic expressions, we conclude that to effectively approach the infinite momentum limit, one roughly needs the pion momenta of the order of $\sim 3$GeV. We also explore polynomiality of the quasi distributions and study the generalized quasi form factors. The issue of separability of the transverse and longitudinal dynamics in the model is studied with the help of the generalized Ioffe-time distributions, with the conclusion that the breaking is not substantial, unless the momentum transfer $t$ is large. We also provide an estimate of the range of the Ioffe-time values needed to obtain the generalized parton distributions with a reasonable accuracy. Our model results, which are analytic or semi-analytic, provide a valuable insight into the theoretical formalism and illustrate the intricate features of the investigated distributions.
description: extended discussion and a reference added, 23 pages, 12 figures
Spacelike thermal correlators are almost time-independent
Creators: name: Caron-Huot, Simon
name: Moore, Guy D.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that, in relativistic field theories, the thermal correlation function of N bosonic operators at sufficiently spacelike-separated points shows exponentially weak dependence on the time variables t_1,...,t_N, when the space separations are held fixed. For classical thermal field theory, the time dependence vanishes when all points are spacelike separated
description: 7 pages, 2 figures. Slight rewriting of conclusions
title: Laparoscopic D2 radical gastrectomy plus complete mesogastrium excision with membrane anatomy
Creators: name: Gong, Jianping
name: Xie, Daxing
name: Yu, Chaoran
name: Osaiweran, Hasan
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: 610 Medical sciences; Medicine

description: Background: D2 gastrectomy has been widely accepted as a standard procedure for surgical treatment of local advanced gastric cancer1.However, neither the boundary nor the extent of the excision for perigastric soft tissues has been described.Our previous research demonstrated the existence of cancer[for full text, please go to the a.m. URL]
description: 133. Kongress der Deutschen Gesellschaft für Chirurgie
title: Building the engineer – not just the structure
Creators: name: Lyon, Dale
name: Huisman, Julia
Publisher: name: University of Strathclyde
Year: 2022

description: From inception, in 2010, ConStructEd Scotland has taken students studying within the built environment faculty and in particular civil and structural engineering students and looked to turn their theory into practice through an on-site experience where they are tasked with delivering a live construction project safely, on schedule and within their own budget. This paper will look at how these early principles have been developed over the past six years, and further developed during times of Covid, to focus much more on the individual journey that each student takes during the five day intensive study period. where their softer skills are challenged and honed ensuring that participating students can align their personal development against the ICE’s 7 Professional Attributes. By taking the data obtained during our three years involvement in University of Strathclyde CL995: Industrial Design and Construction Masters Program where the participating students were taken out of their comfort zone and how immersing them in this multi-cultural learning environment with a mix of secondary, college and university students it was possible to challenge Masters students’ emotional intelligence within a safe environment whilst creating an experience like no other that offered a richer learning experience with context.
Enhanced Playback of Automated Service Emulation Models Using Entropy Analysis
Creators: name: Versteeg, Steve
name: Du, Miao
name: Bird, John
name: Schneider, Jean-Guy
name: Grundy, John
name: Han, Jun
Publisher: name: arXiv
Year: 2016
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Service virtualisation is a supporting tool for DevOps to generate interactive service models of dependency systems on which a system-under-test relies. These service models allow applications under development to be continuously tested against production-like conditions. Generating these virtual service models requires expert knowledge of the service protocol, which may not always be available. However, service models may be generated automatically from network traces. Previous work has used the Needleman-Wunsch algorithm to select a response from the service model to play back for a live request. We propose an extension of the Needleman-Wunsch algorithm, which uses entropy analysis to automatically detect the critical matching fields for selecting a response. Empirical tests against four enterprise protocols demonstrate that entropy weighted matching can improve response accuracy.
description: International Workshop on Continuous Software Evolution and Delivery (CSED'16), ICSE 2016 Austin, USA
Chaotic Mixing in Three Dimensional Porous Media
Creators: name: Lester, Daniel R.
name: Dentz, Marco
name: Borgne, Tanguy Le
Publisher: name: arXiv
Year: 2016
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Under steady flow conditions, the topological complexity inherent to all random 3D porous media imparts complicated flow and transport dynamics. It has been established that this complexity generates persistent chaotic advection via a three-dimensional (3D) fluid mechanical analogue of the baker's map which rapidly accelerates scalar mixing in the presence of molecular diffusion. Hence pore-scale fluid mixing is governed by the interplay between chaotic advection, molecular diffusion and the broad (power-law) distribution of fluid particle travel times which arise from the non-slip condition at pore walls. To understand and quantify mixing in 3D porous media, we consider these processes in a model 3D open porous network and develop a novel stretching continuous time random walk (CTRW) which provides analytic estimates of pore-scale mixing which compare well with direct numerical simulations. We find that chaotic advection inherent to 3D porous media imparts scalar mixing which scales exponentially with longitudinal advection, whereas the topological constraints associated with 2D porous media limits mixing to scale algebraically. These results decipher the role of wide transit time distributions and complex topologies on porous media mixing dynamics, and provide the building blocks for macroscopic models of dilution and mixing which resolve these mechanisms.
description: 36 pages
Classifying Astronomical Transients Using Only Host Galaxy Photometry
Creators: name: Kisley, Marina
name: Qin, Yu-Jing
name: Zabludoff, Ann
name: Barnard, Kobus
name: Ko, Chia-Lin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The Legacy Survey of Space and Time (LSST) at the Vera C. Rubin Observatory will discover tens of thousands of extragalactic transients each night. The high volume of alerts demands immediate classification of transient types in order to prioritize observational follow-ups before events fade away. We use host galaxy features to classify transients, thereby providing classification upon discovery. In contrast to past work that focused on distinguishing Type Ia and core-collapse supernovae (SNe) using host galaxy features that are not always accessible (e.g., morphology), we determine the relative likelihood across $12$ transient classes based on only 19 host apparent magnitudes and colors from $10$ optical and IR photometric bands. We develop both binary and multiclass classifiers, using kernel density estimation to estimate the underlying distribution of host galaxy properties for each transient class. Even in this pilot study, and ignoring relative differences in transient class frequencies, we distinguish eight transient classes at purities significantly above the 8.3% baseline (based on a classifier that assigns labels uniformly and at random): tidal disruption events ($48\%\pm27\%$, where $\pm$ indicates the 95% confidence limit), SNe Ia-91bg ($32\%\pm18\%$), SNe Ia-91T ($23\%\pm11\%$), SNe Ib ($23\%\pm13\%$), SNe II ($17\%\pm2\%$), SNe IIn ($17\%\pm6\%$), SNe II P ($16\%\pm4\%$), and SNe Ia ($10\%\pm1\%$). We demonstrate that our model is applicable to LSST and estimate that our approach may accurately classify 59% of LSST alerts expected each year for SNe Ia, Ia-91bg, II, Ibc, SLSN-I, and tidal disruption events. Our code and dataset are publically available.
description: 25 pages, 12 figures, accepted for publication in ApJ
Renal Fanconi Syndrome Is Caused by a Mistargeting-Based Mitochondriopathy
Creators: name: Assmann, Nadine
name: Dettmer, Katja
name: Simbürger, Johann
name: Broeker, Carsten
name: Nuernberger, Nadine
name: Renner, Kathrin
name: Courtneidge, H.
name: Klootwijk, E. D.
name: Duerkop, Axel
name: Hall, A.
name: Kleta, R.
name: Oefner, Peter J.
name: Reichold, Markus
name: Reinders, Jörg
Publisher: name: Universität Regensburg
Year: 2016
Subjects: subject: FATTY-ACID OXIDATION; BETA-OXIDATION; 3-HYDROXYACYL-COA DEHYDROGENASE; TRIFUNCTIONAL PROTEIN; PHOSPHORYLATION; TUBULE; CELLS; COA; ATP; SPECIFICITY;
subject: 540 Chemie
subject: 570 Biowissenschaften, Biologie
subject: 610 Medizin

description: We recently reported an autosomal dominant form of renal Fanconi syndrome caused by a missensemutation in the third codon of the peroxisomal protein EHHADH. The mutation mistargets EHHADH to mitochondria, thereby impairing mitochondrial energy production and, consequently, reabsorption of electrolytes and low-molecular-weight nutrients in the proximal tubule. Here, we further elucidate the molecular mechanism underlying this pathology. We find that mutated EHHADH is incorporated into mitochondrial trifunctional protein (MTP), thereby disturbing beta-oxidation of long-chain fatty acids. The resulting MTP deficiency leads to a characteristic accumulation of hydroxyacyl- and acylcarnitines. Mutated EHHADH also limits respiratory complex I and corresponding supercomplex formation, leading to decreases in oxidative phosphorylation capacity, mitochondrial membrane potential maintenance, and ATP generation. Activity of the Na+/K+-ATPase is thereby diminished, ultimately decreasing the transport activity of the proximal tubule cells.
Discovery of a loose star cluster in the Large Magellanic Cloud
Creators: name: Piatti, Andrés E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present results for an up-to-date uncatalogued star cluster projected towards the Eastern side of the Large Magellanic Cloud (LMC) outer disc. The new object was discovered from a search of loose star cluster in the Magellanic Clouds' (MCs) outskirts using kernel density estimators on Washington CT1 deep images. Contrarily to what would be commonly expected, the star cluster resulted to be a young object (log(t /yr) = 8.45) with a slightly subsolar metal content (Z = 0.013) and a total mass of 650Mo. Its core, half-mass and tidal radii also are within the frequent values of LMC star clusters. However, the new star cluster is placed at the Small Magellanic Cloud distance and at 11.3 kpc from the LMC centre. We speculate with the possibility that it was born in the inner body of the LMC and soon after expeled into the intergalactic space during the recent Milky Way/MCs interaction. Nevertheless, radial velocity and chemical abundance measurements are needed to further understand its origin, as well as extensive search for loose star clusters in order to constrain the effectiveness of star cluster scattering during galaxy interactions.
description: MNRAS Letters, 5 pages, 2 figures (in press)
Morphine tolerance and delta subtypes of the opiate receptor
Creators: name: Danks., Janine Athalie
Publisher: name: Monash University
Year: 2021

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