cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Healing Length and Bubble Formation in DNA
Creators: name: Rapti, Z.
name: Smerzi, A.
name: Rasmussen, K. O.
name: Bishop, A. R.
name: Choi, C. H.
name: Usheva, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We have recently suggested that the probability for the formation of thermally activated DNA bubbles is, to a very good approximation, proportional to the number of soft AT pairs over a length L(n) that depend on the size $n$ of the bubble and on the temperature of the DNA. Here we clarify the physical interpretation of this length by relating it to the (healing) length that is required for the effect of a base-pair defect to become neligible. This provides a simple criteria to calculate L(n) for bubbles of arbitrary size and for any temperature of the DNA. We verify our findings by exact calculations of the equilibrium statistical properties of the Peyrard-Bishop-Dauxois model. Our method permits calculations of equilibrium thermal openings with several order of magnitude less numerical expense as compared with direct evaluations.
Design of opposed-anvil-type high-pressure cell for precision magnetometry and its application to quantum magnetism
Creators: name: Hiraoka, Naoka
name: Whiteaker, Kelton
name: Blankenhorn, Marian
name: Hayashi, Yoshiyuki
name: Oka, Ryosuke
name: Takagi, Hidenori
name: Kitagawa, Kentaro
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have developed a much sensitve technique to conduct magnetometry under ultrahigh pressures up to 6.3~GPa, which can detect a weak volume susceptibilities as small as $\sim 10^{-4}$. An opposed-anvil-type high-pressure cell is designed by numerical analysis to give nearly zero magnetic response, in a commercial SQUID magnetometer. We introduced procedures for subtracting background contributions from a high-pressure cell by taking displacements of the cell parts into account, and found a way of resolving tiny magnetism of a sample from given magnetometer response curves. A non-magnetic material, binderless tungsten carbide ceramic, is employed. To increase sample-signal-to-background ratio further, a conical shaped gasket and cupped anvils are introduced, yielding nearly ten times better space efficiency. The new set-up and analysis are applied to measure the paramagnetic susceptibilities of spin orbit entangled moment under pressures.
description: 9 pages, 9 figures, to appear in J. Phys. Soc. Jpn
Supplementary data, methods and results from The vocal tract as a time machine: inferences about past speech and language from the anatomy of the speech organs
Creators: name: Dediu, Dan
name: Moisik, Scott R.
name: W. A. Baetsen
name: Bosman, Abel Marinus
name: Waters-Rist, Andrea L.
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: 170299 Cognitive Science not elsewhere classified
subject: FOS: Psychology

description: Details about the materials, methods and results, including the supplementary figures and tables
Generation of 1.5-um band time-bin entanglement using spontaneous fiber four-wave mixing and planar lightwave circuit interferometers
Creators: name: Takesue, Hiroki
name: Inoue, Kyo
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: This paper reports 1.5-um band time-bin entanglement generation. We employed a spontaneous four-wave mixing process in a dispersion shifted fiber, with which correlated photon pairs with very narrow bandwidths were generated efficiently. To observe two-photon interference, we used planar lightwave circuit based interferometers that were operated stably without feedback control. As a result, we obtained coincidence fringes with 99 % visibilities after subtracting accidental coincidences, and successfully distributed entangled photons over 20-km standard single-mode fiber without any deterioration in the quantum correlation.
description: 4 pages, 3 figures
Effect of pulse width on the dynamics of a deflated vesicle in unipolar and bipolar pulsed electric fields
Creators: name: Das, Sudip
name: Jaeger, Marc
name: Leonetti, Marc
name: Thaokar, Rochish M.
name: Chen, Paul G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Giant unilamellar vesicles subjected to pulsed direct-current (pulsed-DC) fields are promising biomimetic systems to investigate the electroporation of cells. In strong electric fields, vesicles undergo significant deformation, which strongly alters the transmembrane potential, consequently the electroporation. Previous theoretical studies investigated the electrodeformation of vesicles in DC fields (which are not pulsed). In this work, we computationally investigate the deformation of a deflated vesicle under unipolar, bipolar, and two-step unipolar pulses and show sensitive dependence of intermediate shapes on type of pulse and the pulse width. Starting with the stress-free initial shape of a deflated vesicle, which is similar to a prolate spheroid, the analysis is presented for the cases with higher and lower conductivities of the inner fluid medium relative to the outer fluid medium. For the ratio of inner to outer fluid conductivity, $σ_\mathrm{r}$ = 10, the shape always remains prolate, including when the field is turned off. For $σ_\mathrm{r} = 0.1$, several complex dynamics are observed, such as the prolate-to-oblate (PO), prolate-to-oblate-to-prolate (POP) shape transitions in time depending upon the strength of the field and the pulse properties. In this case, on turning off the field, a metastable oblate equilibrium shape is seen, that seems to be a characteristics of a deflated vesicle leading to POPO transitions. When a two-step unipolar pulse (a combination of a strong and a weak subpulse) is applied, a vesicle can reach an oblate or a prolate final shape depending upon the relative durations of the two subpulses.
Receding Horizon Task and Motion Planning in Changing Environments
Creators: name: Castaman, Nicola
name: Pagello, Enrico
name: Menegatti, Emanuele
name: Pretto, Alberto
Publisher: name: arXiv
Year: 2020
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Complex manipulation tasks require careful integration of symbolic reasoning and motion planning. This problem, commonly referred to as Task and Motion Planning (TAMP), is even more challenging if the workspace is non-static, e.g. due to human interventions and perceived with noisy non-ideal sensors. This work proposes an online approximated TAMP method that combines a geometric reasoning module and a motion planner with a standard task planner in a receding horizon fashion. Our approach iteratively solves a reduced planning problem over a receding window of a limited number of future actions during the implementation of the actions. Thus, only the first action of the horizon is actually scheduled at each iteration, then the window is moved forward, and the problem is solved again. This procedure allows to naturally take into account potential changes in the scene while ensuring good runtime performance. We validate our approach within extensive experiments in a simulated environment. We showed that our approach is able to deal with unexpected changes in the environment while ensuring comparable performance with respect to other recent TAMP approaches in solving traditional static benchmarks. We release with this paper the open-source implementation of our method.
Chapter 4: C-M-P – Deformation Behaviour
Creators: name: IOM3
Publisher: name: F1000 Research Limited
Year: 2024

description: Research of Hot Deformation Behavior and Microstructure Evolution of Fe Microalloyed Ti-6Al-4V Alloys



Compositional Effects on the Formation and Thermal Evolution of Oxygen-Ordered Precipitates in Ti-Zr-O Alloys: An In Situ Synchrotron X-Ray Diffraction Study



From Slip Activity to Fatigue Crack Nucleation at Basal Twist Grain Boundaries in Titanium Alloys



Effect of Silicon Addition on Deformation Mechanisms of Near-Alpha Titanium Alloys



Effect of Oxygen Content on Dynamic Deformation Behavior of Pure Titanium



On the Oxygen Ordering Mechanisms in Dilute Ti-Zr-O Systems



Effect of ‘Q’ Ratio on Texture Evolution of Ti-3Al-2.5V Alloy Tube During Rolling



Investigation of the Microstructure and Texture of a Ti-3Al-2.5V Sheet During Cold Unidirectional-Rolling Process



Elastic Anisotropy of Commercially Pure Titanium Processed by Equal Channel Angular Pressing at Room Temperature



Identification of Twinning Systems in Commercially-Pure Titanium Using Polarized Light Microscopy



A High Resolution Digital Image Correlation Investigation of Slip Activity in Relation to Microstructure
Chapter 5: C-M-P – Dwell Fatigue
Creators: name: IOM3
Publisher: name: F1000 Research Limited
Year: 2024

description: Effect of Texture on the Dwell Fatigue of the α Phase of Titanium
 Sub-Surface Crack Initiation and Load Shedding in Microtextured Titanium Alloys Under Dwell Fatigue Loading
 Dwell Sensitive Fatigue in Ti-685 Revisited
 New Inspection Method to Rapidly Detect Microtexture in Ti Alloys
 Tools and Methods for Microtexture Classification and Physics-Based Dwell Fatigue Life Prediction in Ti-6Al-4V
 Investigation on the Cold Dwell Fatigue Susceptibility of Ti-6Al-2Sn-4Zr-6Mo Billet and Forging for Aero-Engine Application
 The Effect of Size of Microtexture Regions on the Dwell Fatigue Lives of Ti-6Al-4V Bar
 Cold-Dwell Fatigue Property of Linear Friction Welded Ti-6Al-4V Alloy Joint
 Understanding the Anisotropy of Dwell Fatigue Properties of IMI834 Using Crystal Plasticity Simulations
 Room Temperature Creep Fracture Surface Morphology of Ti-6Al-4V Titanium Alloy and Comparison with Dwell and High R Ratio Cyclic Loading
 Development of Method for Microtexture Characterization and Dwell Fatigue Life Prediction of Dual Phase Titanium Alloys
 Characterization of Crack Initiation in Wrought Ti-6Al-4V Alloys Under Fatigue and Cold Dwell Fatigue Using Reflected Light Darkfield Microscopy and Electron Backscatter Diffraction
 Characterization of Fracture Initiation Sites in Ti-6Al-4V Dwell Fatigue Specimens
 Effects of Cold-Dwell Fatigue on the Growth of Long Cracks in Alpha+Beta Ti-6Al-4V
 Detection of Macrotexture in UD Rolled Ti-6Al-4V Using Force Feedback Analysis
 Inhomogeneous Microtexture Promoting Dwell Sensitivity in Ti-6Al-4V
 Industry-Wide Learning and Perspectives on Management of Cold-Dwell Fatigue Capabilities
 Quantification of Microtexture in Hexagonal Metals
 Probabilistic Dwell Fatigue Modeling of Titanium Components
On a class of non-self-adjoint periodic eigenproblems with boundary and interior singularities
Creators: name: Boulton, Lyonell
name: Levitin, Michael
name: Marletta, Marco
Publisher: name: arXiv
Year: 2008
Subjects: subject: Spectral Theory (math.SP)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 47E05, 34B24, 76Rxx

description: We prove that the spectrum of a certain PT-symmetric periodic problem is purely real. Our results extend to a larger class of potentials those recently found by Brian Davies [math.SP/0702122] and John Weir [arXiv:0711.1371].
description: 20 pages, this final version includes correction of several typos and change of title
Harmonized chronologies of a global late Quaternary pollen dataset (LegacyAge 1.0) in R
Creators: name: Chenzhi Li
name: Postl, Alexander K.
name: Böhmer, Thomas
name: Xianyong Cao
name: Dolman, Andrew M.
Publisher: name: Zenodo
Year: 2021

description: We present a chronology framework named LegacyAge 1.0 containing harmonized chronologies for 2831 pollen records (downloaded from the Neotoma Paleoecology Database and the supplementary Asian datasets) together with their age control points and metadata in machine-readable data formats. Here, we provide the R-code for calculation and comparison chronologies with embedded manual, metadata for code runs, Bacon output graphs of each record, graphs comparison of original chronologies and LegacyAge 1.0, and a short shared-screen video of the R-code to show the usage on two example records separately. Supplement to: Li, C., Postl, A. K., Böhmer, T., Cao, X., Dolman, A. M., and Herzschuh, U.: Harmonized chronologies of a global late Quaternary pollen dataset (LegacyAge 1.0), Earth Syst. Sci. Data Discuss. [preprint], https://doi.org/10.5194/essd-2021-212, in review, 2021.
Zeeman driven superconductor insulator transition in strongly disordered MoC film. STM and transport studies in transverse magnetic field
Creators: name: Žemlička, M.
name: Kopčík, M.
name: Szabó, P.
name: Samuely, T.
name: Kačmarčík, J.
name: Neilinger, P.
name: Grajcar, M.
name: Samuely, P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Superconductor insulator transition in transverse magnetic field is studied in the highly disordered MoC film with the product of the Fermi momentum and the mean free path $k_F*l$ close to unity. Surprisingly, the Zeeman paramagnetic effects dominate over orbital coupling on both sides of the transition. In superconducting state it is evidenced by a high upper critical magnetic field $B_{c2}$, by its square root dependence on temperature, as well as by the Zeeman splitting of the quasiparticle density of states (DOS) measured by scanning tunneling microscopy. At $B_{c2}$ a logarithmic anomaly in DOS is observed. This anomaly is further enhanced in increasing magnetic field, which is explained by the Zeeman splitting of the Altshuler-Aronov DOS driving the system into a more insulating or resistive state. Spin dependent Altshuler-Aronov correction is also needed to explain the transport behavior above $B_{c2}$.
description: Equation (1) is corrected in this version. See the Erratum in PRB
A simple model for $f\to d$ transition of heavy lanthanide and actinide ions in crystals
Creators: name: Duan, Chang-Kui
name: Reid, Michael F.
name: Ruan, Gang
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The $f\to d$ transition model by Duan and co-workers [Phys. Rev. B {\bf 66}, 155108 (2002); J. Solid State Chem. {\bf 171}, 299 (2003)] has been very useful in interpreting the $f\to d$ absorption, emission and nonradiative relaxation of light lanthanide ions in crystals. However, based on the assumption that the $f^{N-1}$ core spin-orbit interaction is weak compared to $f\to d$ exchange interaction, this model, in the original form, is not applicable to interpretation of the $f\to d$ transitions of heavy lanthanide ions or actinide ions in crystals. In this work the model is extended to cover the cases of heavy lanthanides and actinides, where the spin-orbit interaction of $f$ orbitals may be stronger than the $f-d$ exchange nteraction. Keywords: lanthanide; f-d transition; model; spectrum; actinide; VUV;
description: Presented on AMN-2, Queenstown, New Zealand Feb 6-11, 2005; Will appear on Current Applied Physics
Pix2Prof: fast extraction of sequential information from galaxy imagery via a deep natural language 'captioning' model
Creators: name: Smith, Michael J.
name: Arora, Nikhil
name: Stone, Connor
name: Courteau, Stéphane
name: Geach, James E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Machine Learning (cs.LG)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We present 'Pix2Prof', a deep learning model that can eliminate any manual steps taken when extracting galaxy profiles. We argue that a galaxy profile of any sort is conceptually similar to a natural language image caption. This idea allows us to leverage image captioning methods from the field of natural language processing, and so we design Pix2Prof as a float sequence 'captioning' model suitable for galaxy profile inference. We demonstrate the technique by approximating a galaxy surface brightness (SB) profile fitting method that contains several manual steps. Pix2Prof processes $\sim$1 image per second on an Intel Xeon E5 2650 v3 CPU, improving on the speed of the manual interactive method by more than two orders of magnitude. Crucially, Pix2Prof requires no manual interaction, and since galaxy profile estimation is an embarrassingly parallel problem, we can further increase the throughput by running many Pix2Prof instances simultaneously. In perspective, Pix2Prof would take under an hour to infer profiles for $10^5$ galaxies on a single NVIDIA DGX-2 system. A single human expert would take approximately two years to complete the same task. Automated methodology such as this will accelerate the analysis of the next generation of large area sky surveys expected to yield hundreds of millions of targets. In such instances, all manual approaches -- even those involving a large number of experts -- will be impractical.
description: Accepted for publication in MNRAS. 10 pages, and 8 figures. Code: https://github.com/Smith42/pix2prof
PEDAGOGIKA OLIY TA'LIM MUASSALARIDA TA'LIM SIFATINI YAXSHILASH MAQSADIDA RAQAMLI TA'LIM USULLARIDAN FOYDALANISH
Creators: name: Raxmonov, Mirzoxidjon
Publisher: name: Zenodo
Year: 2024

description: Ushbu maqolada oliy ta’lim muassasalarida ta’limni rivojlantirishda innovatsion texnologiyalar foydalanish va uning ijobiy ta’sirlari bayon etilgan.
Prediction of fatigue damage progression in bonded composite repairs to aluminum aircraft structures
Creators: name: Clark, Randal John
Publisher: name: University of British Columbia
Year: 2009

description: The focus of this thesis is the development of a predictive model for fatigue damage progression in unidirectional bonded composite repairs of cracked isotropic plates. The principal use of this technology is in the design of repairs for aluminum aircraft structures. The ability to predict the rate of fatigue damage is critical to damage tolerance analysis of a repair. A damage tolerance analysis will allow designers to assess the design life, assign inspection intervals, and determine likely failure modes for a repair, and will be required for airworthiness certification for a long or indefinite period of operation. In this thesis, classical methods of bonded joint analysis are presented, and extended to the case of reversed plasticity of an internally pressurized lap joint. The crack bridging effect of the repair is examined using a boundary element method employing the Green's functions for a point load applied to a center-cracked plate. This results in a system of linear equations solvable by Gauss- Seidell iteration. The boundary element method allows calculation of the stress intensity and adhesive shear stresses under the bonded patch. These parameters govern the fatigue and static strength of the repair. The boundary element model combines engineering fracture mechanics and bonded joint analysis techniques in a very direct and straightforward manner. Results from the boundary-element model are compared to approximate analytical methods for a disbonding patch, and an improved analytical model employing correction factors is presented. Power law methods are then used to predict crack and disbond growth rates, which are compared to experimental results. The influence on patch life of various secondary effects, such as adhesive plasticity, process-induced thermal residual stresses, patch bending, shear deformation of the patch, and cracked-plate geometry are investigated. Based on this work, conclusions are drawn regarding patch behavior, limitations of modeling techniques, and experimental results still necessary to validate patch mechanics models. The techniques developed are also of interest in the study of cracking in fiber-reinforced metal laminates (FRML).
Too fast to grow: Dynamics of pendant drops sliding on a thin film
Creators: name: Jambon-Puillet, Etienne
name: Ledda, Pier Giuseppe
name: Gallaire, François
name: Brun, P. -T.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Pendant drops suspended on the underside of a wet substrate are known to accumulate fluid from the surrounding thin liquid film, a process that often results in dripping. The growth of such drops is hastened by their ability to translate over an otherwise uniform horizontal film. Here we show that this scenario is surprisingly reversed when the substrate is slightly tilted ($\approx 2$ deg) ; drops become too fast to grow and shrink over the course of their motion. Combining experiments and numerical simulations, we rationalize the transition between the conventional growth regime and the previously unknown decay regime we report. Using an analytical treatment of the Landau-Levich meniscus that connects the drop to the film, we quantitatively predict the drop dynamics in the two flow regimes and the value of the critical inclination angle where the transition between them occurs.
Positivity and strong ellipticity
Creators: name: ter Elst, A. F. M.
name: Robinson, Derek W.
name: Zhu, Yueping
Publisher: name: arXiv
Year: 2006
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We consider second-order partial differential operators $H$ in divergence form on $\Ri^d$ with a positive-semidefinite, symmetric, matrix $C$ of real $L_\infty$-coefficients and establish that $H$ is strongly elliptic if and only if the associated semigroup kernel satisfies local lower bounds, or, if and only if the kernel satisfies Gaussian upper and lower bounds.
description: 9 pages
Numerically exact mimicking of quantum gas microscopy for interacting lattice fermions
Creators: name: Humeniuk, Stephan
name: Wan, Yuan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A numerical method is presented for reproducing fermionic quantum gas microscope experiments in equilibrium. By employing nested componentwise direct sampling of fermion pseudo-density matrices, as they arise naturally in determinantal quantum Monte Carlo (QMC) simulations, a stream of pseudo-snapshots of occupation numbers on large systems can be produced. There is a sign problem even when the conventional determinantal QMC algorithm can be made sign-problem free, and every pseudo-snapshot comes with a sign and a reweighting factor. Nonetheless, this "sampling sign problem" turns out to be weak and manageable in a large, relevant parameter regime. The method allows to compute distribution functions of arbitrary quantities defined in occupation number space and, from a practical point of view, facilitates the computation of complicated conditional correlation functions. While the projective measurements in quantum gas microscope experiments achieve direct sampling of occupation number states from the density matrix, the presented numerical method requires a Markov chain as an intermediate step and thus achieves only indirect sampling, but the full distribution of pseudo-snapshots after (signed) reweighting is identical to the distribution of snapshots from projective measurements
description: 5 + 10 pages, 3 + 8 figures, including link to program code, published version
Dynamics of hyperon--antihyperon production
Creators: name: Richard, Jean-Marc
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The dynamics of the strangeness-exchange reactions antiproton-proton to AntiLambda-Lambda, AntiLambda-Sigma or AntiSigma-Sigma is discussed, either at the hadron level, in terms of strange-meson exchange, or at the quark level, in terms of quark--antiquark creation or annihilation.
description: 6 pages, Latex with included AIP style, Invited talk at LEAP 05, to appear in the Proceedings
In Pursuit of New Physics with $B_d^0\to J/ψK^0$ and $B_s^0\to J/ψϕ$ Decays at the High-Precision Frontier
Creators: name: Barel, Marten Z.
name: De Bruyn, Kristof
name: Fleischer, Robert
name: Malami, Eleftheria
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The decays $B_d^0\to J/ψK^0_{\text{S}}$and $B_s^0\to J/ψϕ$ play a key role for the determination of the $B^0_q$-$\bar B^0_q$ ($q=d,s$) mixing phases $ϕ_d$ and $ϕ_s$, respectively. The theoretical precision of the extraction of these quantities is limited by doubly Cabibbo-suppressed penguin topologies, which can be included through control channels by means of the $SU(3)$ flavour symmetry of strong interactions. Using the currently available data and a new simultaneous analysis, we discuss the state-of-the-art picture of these effects and include them in the extracted $ϕ_q$ values. We have a critical look at the Standard Model predictions of these phases and explore the room left for new physics. Considering future scenarios for the high-precision era of flavour physics, we illustrate that we may obtain signals for physics beyond the Standard Model with a significance well above five standard deviations. We also determine effective colour-suppression factors of $B_d^0\to J/ψK^0$, $B_d^0\to J/ψK^0_{\text{S}}$ and $B_d^0\to J/ψπ^0$ decays, which serve as benchmarks for QCD calculations of the underlying decay dynamics, and present a new method using information from semileptonic $B_d^0\toπ^-\ell^+ν_{\ell}$ and $B_s^0\to K^-\ell^+ν_{\ell}$ decays.
description: 33 pages, 13 figures, matches published version
Circuit lower bounds for low-energy states of quantum code Hamiltonians
Creators: name: Anshu, Anurag
name: Nirkhe, Chinmay
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Computational Complexity (cs.CC)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The No Low-energy Trivial States (NLTS) conjecture of Freedman and Hastings, 2014 -- which posits the existence of a local Hamiltonian with a super-constant quantum circuit lower bound on the complexity of all low-energy states -- identifies a fundamental obstacle to the resolution of the quantum PCP conjecture. In this work, we provide new techniques, based on entropic and local indistinguishability arguments, that prove circuit lower bounds for all the low-energy states of local Hamiltonians arising from quantum error-correcting codes. For local Hamiltonians arising from nearly linear-rate or nearly linear-distance LDPC stabilizer codes, we prove super-constant circuit lower bounds for the complexity of all states of energy o(n). Such codes are known to exist and are not necessarily locally testable, a property previously suspected to be essential for the NLTS conjecture. Curiously, such codes can also be constructed on a two-dimensional lattice, showing that low-depth states cannot accurately approximate the ground-energy even in physically relevant systems.
description: Previous versions contain revisions to introduction and non-technical content. Prior to version 3, asymptotic constants were worse and the dependency in Theorem 1 was epsilon^{1/3}. Version 5 introduced the lower bound for linear-distance LDPC stabilizer codes which was not in previous versions as well as additional technical appendices
Die Grenzen der Kirche in der Sicht der Orthodoxen Katholischen Kirche
Creators: name: Nikolau, Theodōros
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 21 Nr. 3 (1972): Ökumenische Rundschau, Band 21, Heft 3
Bulk hadron production at high rapidities
Creators: name: Veres, Gábor I.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Recent experimental observations on the `bulk' features of particle production at high (pseudo)rapidities will be reviewed. This kinematic region is of interest mostly because of its relevance to the theoretical description of initial state effects of nuclei at ultra-relativistic energies. Measurements of the charged hadron multiplicity density as well as the pseudorapidity dependence of the elliptic and directed flow exhibit a remarkable scaling property as a function of collision energy. This scaling seems to hold for pions and even photons and J/Psi-s, but is violated for protons. The special role of baryons will be discussed using selected results on nuclear transparency and baryon stopping.
description: 10 pages, 8 figures. Prepared for the Proceedings of the Quark Matter 2005 Conference
STrEAMlining EFT Matching
Creators: name: Cohen, Timothy
name: Lu, Xiaochuan
name: Zhang, Zhengkang
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This paper presents STrEAM (SuperTrace Evaluation Automated for Matching), a Mathematica package that calculates all functional supertraces which arise when matching a generic UV model onto a relativistic Effective Field Theory (EFT) at one loop and to arbitrary order in the heavy mass expansion. STrEAM implements the covariant derivative expansion to automate the most tedious step of the streamlined functional matching prescription presented in arXiv:2011.02484 . The code and an example notebook are available at https://www.github.com/EFTMatching/STrEAM .
description: v2: published version, minimal changes
Phase control of electromagnetically induced transparency and its applications to tunable group velocity and atom localization
Creators: name: Kapale, Kishore T.
name: Sahrai, Mostafa
name: Tajali, Habib
name: Zubairy, M. Suhail
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that, by simple modifications of the usual three-level $Λ$-type scheme used for obtaining electromagnetically induced transparency (EIT), phase dependence in the response of the atomic medium to a weak probe field can be introduced. This gives rise to phase dependent susceptibility. By properly controlling phase and amplitudes of the drive fields we obtain variety of interesting effects. On one hand we obtain phase control of the group velocity of a probe field passing through medium to the extent that continuous tuning of the group velocity from subluminal to superluminal and back is possible. While on the other hand, by choosing one of the drive fields to be a standing wave field inside a cavity, we obtain sub-wavelength localization of moving atoms passing through the cavity field.
description: To Appear in SPIE Proceedings Volume 5735
Late-Time Dark Matter Oscillations and the Core-Cusp Problem
Creators: name: Cline, James M.
name: Gambini, Guillermo
name: McDermott, Samuel D.
name: Puel, Matteo
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The core-cusp problem persists as an unresolved tension between the predictions of $Λ$CDM cosmology and observations of dark matter (DM) profiles in dwarf spheroidal and other galaxies. We present a novel scenario for converting cusps into cores through reactivation of DM annihilation in galaxies at late times. This can happen in asymmetric DM models when there is a very small DM-number violating mass term that causes oscillations between DM and its antiparticle. Using analytic methods as well as gravitational N-body simulations, we show that this mechanism can robustly eliminate cusps from galactic DM profiles for light fermionic DM of mass $m_χ\sim (0.1-1)$ GeV and a lighter mediator into which the DM can annihilate. We identify regions of parameter space where annihilation of DM particles is more efficient than elastic scattering at reducing the inner density of the DM profile. Dark matter annihilation is therefore a qualitatively distinct alternative to the mechanism of elastic self-interacting dark matter for addressing the cusp-core problem.
description: 27 pages, 12 figures; v2: 30 pages, added discussion on Boltzmann equation in galaxies, two plots and appendix D, updated CMB constraint on $\delta m$ and references, improved version with clarifications; v3: matched published version
INSTITUTIONAL FACTORS AFFECTING THE ADOPTION OF AGRICULTURAL SECTOR ANALYSIS METHODOLOGY IN LDC'S
Creators: name: Klein, H.
name: Roe, Terry L.
name: Klein, H.
name: Roe, Terry L.
Publisher: name: Unknown
Year: 1978
Subjects: Institutional and Behavioral Economics

description: The general purpose of this paper is to consider some issues and constraints relating to the process of using ASA as an operational piece in the on-going policy decision making process of a developing countries host institution. We shall attempt to elaborate from our experience what some of the constraints on the institutionalization of ASA techniques appear to be and to introduce some notions on how ASA efforts might be modified to alleviate or to better deal with these constraints.
Lunar neutrinos
Creators: name: Demidov, S.
name: Gorbunov, D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Cosmic rays bombard the lunar surface producing mesons, which attenuate inside the regolith. They get slower and decay weakly into mostly sub-GeV neutrinos leaving the surface. Thus the Moon shines in neutrinos. Here we calculate spectra of low energy neutrinos, which exhibit bright features potentially recognisable above isotropic neutrino background in the direction towards the Moon. Their observation, though a very challenging task for future neutrino large volume experiments, would make the Moon the nearest astrophysical source for which the concept of multimessenger astronomy works truly. Remarkably, some features of the lunar neutrino flux are sensitive to the surface mass density of the Moon.
description: 13 pages, 9 figures, study of lunar neutrino oscillations added, few references added, version accepted for publication in PRD
Comparative Study on Natural Selenium-enriching Ability of 7 Main Cultivars of Pueraria lobata
Creators: name: OU Kunpeng
name: YANG Yuanning
name: WANG Xueli
name: HUANG Risheng
name: FENG Chengcheng
name: HUANG  Honghua
name: WANG  Yan
name: OU Kunpeng
name: YANG Yuanning
name: WANG Xueli
name: HUANG Risheng
name: FENG Chengcheng
name: HUANG  Honghua
name: WANG  Yan
Publisher: name: Unknown
Year: 2021
Subjects: subject: Agribusiness
subject: Pueraria lobata, Selenium, Enriching ability, Comparison

description: [Objectives]To screen out the selenium-enriched Pueraria lobata varieties suitable for cultivation in Guangxi according to the natural selenium-enriching ability of 7 main cultivars. [Methods] Taking 7 main cultivars of P. lobata in different places as experimental materials, field cultivation was carried out on the selenium-enriched yellow soil in Shanglin County, Nanning City of Guangxi, to study the difference in selenium-enriching ability of different main cultivars and the comparison of selenium content in different parts, as well as the transport mechanism. [Results] Under the condition of soil selenium content of 0.78 mg/kg, the selenium content of the root tubers of the 7 main cultivars all reached the selenium-enrichment standard. The selenium content of a single root tuber of Heping Variety in Teng County, Guangxi was the highest, at 0.061 mg/kg; Guifenge No.1 was the second at 0.055 mg/kg, and the total selenium accumulation per unit area was the largest. The ranking of selenium content in different parts of the same variety was: leaf > vine > head > root tuber. [Conclusions] Guifenge No.1 has the highest yield and the largest total selenium accumulation, so it is the most suitable natural selenium-enriched variety for cultivation.
IMPERFECT INFORMATION, CONSUMER THEORY, AND ALLOCATIVE ERROR IN CONSUMPTION
Creators: name: Kinsey, Jean D.
name: Roe, Terry L.
name: Sexauer, Benjamin
name: Kinsey, Jean D.
name: Roe, Terry L.
name: Sexauer, Benjamin
Publisher: name: Unknown
Year: 1980
Subjects: Consumer/Household Economics

description: Traditional economic theory of the consumer assumes the existence of perfect information. However, in reality this assumption is rarely fulfilled. In this paper a model is presented which relaxes this assumption and explicitly introduces the possibility of imperfect information into the theory of consumer behavior. Specifically, the focus is on consumer decision making when the utility realized form a bundle of goods and services can be different from the utility anticipated during the budget allocation process.
INSTITUTIONAL CONSIDERATIONS IN TARGETING SOIL CONSERVATION EFFORTS
Creators: name: Smith, Matthew G.
name: Smith, Matthew G.
Publisher: name: Unknown
Year: 1983
Subjects: Land Economics/Use

description: This paper will outline an approach to targeting soil conservation efforts that rests upon an analysis of physical, economic, and institutional parameters. Within this context, the literature on the relationship between soil erosion and some common arrangements of land ownership and control will be examined to provide insights useful in the formulation of public policy and to suggest further opportunities for research.
Antenna enhanced infrared photoinduced force imaging in aqueous environment with super-resolution and hypersensitivity
Creators: name: Li, Jian
name: Pang, Jie
name: Yan, Zhen-dong
name: Jahng, Junghoon
name: Li, Jin
name: Morrison, William
name: Liang, Jing
name: Zhang, Qing-Ying
name: Xia, Xing-Hua
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Tip enhanced IR spectra and imaging have been widely used in cutting-edge studies for the in-depth understanding of the composition, structure and function of interfaces at the nanoscale. However, molecular monolayer sensitivity has only been demonstrated on solid/gas interfaces. In aqueous environment, the reduced sensitivity due to strong damping of the cantilever oscillation and background IR absorption extremely limits the practical applications of tip enhanced IR nanospectroscopy. Here, we demonstrate hypersensitive nanoscale IR spectra and imaging in aqueous environment with the combination of photoinduced force (PiF) microscopy and resonant antennas. The highly confined electromagnetic field inbetween the tip end and antenna extremely amplifies the photoinduced force to the detectable level, while the excitation via plasmon internal reflection mode minimizes the environmental absorption. A polydimethylsiloxane (PDMS) layer (~1-2 nm thickness) functionalized on the AFM tip has been successfully identified in water with antennas of different sizes. Sampling volume of ~604 chemical bonds from PDMS was demonstrated with sub-10 nm spatial resolution confirmed by electric (E) field distribution mapping on antennas, which strongly suggests the desired requirements for interfacial spectroscopy. This platform demonstrates for the first time the application of photoinduced force microscopy in aqueous environments, providing a brand-new configuration to achieve highly enhanced nanoscale IR signals, which is extremely promising for future research of interfaces and nanosystems in aqueous environments.
An Analysis of the Role of Mental Health in a Randomized Trial of a Walking Intervention for Black Veterans With Chronic Pain
Creators: name: Goldsmith, Elizabeth S
name: Taylor, Brent C
name: Burgess, Diana J
name: Allen, Kelli D
name: Hammett, Patrick J
name: Eliacin, Johanne
name: Makris, Una E
name: Do, Tam
name: Branson, Mariah
name: Kerns, Robert D
name: Saenger, Michael
name: Meis, Laura A
name: Heapy, Alicia
name: Cross, Lee J S
Publisher: name: Elsevier
Year: 2022

description:
Black patients and those with co-occurring mental health disorders are disproportionately affected by chronic pain, but few interventions target these populations. This is a secondary analysis of a randomized trial of a walking-focused proactive counseling intervention for Black Veterans with chronic musculoskeletal pain (ACTION). The primary aim was to examine intervention effectiveness among Veterans with an electronic health record-documented mental health diagnosis [depressive disorder, anxiety disorder, substance use disorder, post-traumatic stress disorder or serious mental illness (n = 205)] and those without a diagnosis (n = 175). About 380 Black Veterans receiving care at the Atlanta VA Health Care System were enrolled from 2016 to 2019 and randomized to the intervention or usual care (UC) (1:1). The intervention featured 6 telephone coaching sessions over 8-14 weeks to encourage walking. Participants with a mental health disorder were more likely to complete all counseling sessions (56% vs 38%) and reported improvements in global perceptions of pain and pain intensity/interference (secondary outcomes) at 3-months vs UC. Among participants without a mental health disorder, the intervention was associated with an improvement in pain-related disability at 6-months (primary outcome). Black chronic pain patients with co-occurring mental health disorders may require more intensive treatment to affect improvement in pain-related disability. PERSPECTIVE: This study examines the effectiveness of a walking intervention for chronic pain among Black Veterans with a mental health disorder. These patients were more engaged with the intervention than those without a mental health disorder. However, they did not experience reductions in pain-related disability, suggesting more intensive treatment is needed.
Distributed Multi-object Tracking under Limited Field of View Sensors
Creators: name: Van Nguyen, Hoa
name: Rezatofighi, Hamid
name: Vo, Ba-Ngu
name: Ranasinghe, Damith C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Multiagent Systems (cs.MA)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: We consider the challenging problem of tracking multiple objects using a distributed network of sensors. In the practical setting of nodes with limited field of views (FoVs), computing power and communication resources, we develop a novel distributed multi-object tracking algorithm. To accomplish this, we first formalise the concept of label consistency, determine a sufficient condition to achieve it and develop a novel \textit{label consensus approach} that reduces label inconsistency caused by objects' movements from one node's limited FoV to another. Second, we develop a distributed multi-object fusion algorithm that fuses local multi-object state estimates instead of local multi-object densities. This algorithm: i) requires significantly less processing time than multi-object density fusion methods; ii) achieves better tracking accuracy by considering Optimal Sub-Pattern Assignment (OSPA) tracking errors over several scans rather than a single scan; iii) is agnostic to local multi-object tracking techniques, and only requires each node to provide a set of estimated tracks. Thus, it is not necessary to assume that the nodes maintain multi-object densities, and hence the fusion outcomes do not modify local multi-object densities. Numerical experiments demonstrate our proposed solution's real-time computational efficiency and accuracy compared to state-of-the-art solutions in challenging scenarios. We also release source code at https://github.com/AdelaideAuto-IDLab/Distributed-limitedFoV-MOT for our fusion method to foster developments in DMOT algorithms.
description: Accepted to The IEEE Transactions on Signal Processing (TSP). 15 pages, 11 figures
Konvergenz als Strukturprinzip eines kommenden universalen Konzils aller Christen
Creators: name: Mühlen, Heribert
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 21 Nr. 3 (1972): Ökumenische Rundschau, Band 21, Heft 3
The unusual temperature dependence of the Eu$^{2+}$ fluorescence lifetime in CaF$_2$ crystals
Creators: name: Duan, C. K.
name: Mejerink, A.
name: Reeves, R. J.
name: Reid, M. F.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Fluorescence lifetimes of Eu$^{2+}$ doped in CaF$_2$ are measured at various temperatures between 4K and 450K. The lifetime increases with between 100K and 300K, in contrast to the usual lifetime-temperature dependence. At higher or lower temperatures the lifetime decreases with increasing temperature. The phenomenon is explained by simulation of the energy levels and lifetimes of low-lying $4f^65d$ states involved in the fluorescence.
description: 10 pages, 2 figures, to appear on Journal of Alloys and Compounds
Bestimmung von Bäumen mit Bestimmungsschlüssel und App
Creators: name: Heil, Ingeborg
name: Helbing, Isabell
Publisher: name: BU praktisch - Das Online-Journal für den Biologieunterricht
Year: 2022

description: Das in diesem Beitrag vorgestellte Unterrichtsmodell zeigt eine Möglichkeit auf, wie Schüler:innen über eine starke materiale Steuerung, auch im asynchronen Unterricht, an analoge und digitale Methoden zur Bestimmung von Bäumen anhand ihrer Blätter herangeführt werden können. Das Schülermaterial ist gemäß den Schritten der naturwissenschaftlichen Erkenntnisgewinnung strukturiert und ermöglicht eine eigenständige Bearbeitung durch Lernende im Präsenz- wie im Distanzunterricht.
description: BU praktisch - Das Online-Journal für den Biologieunterricht, Bd. 5 Nr. 1 (2022): Original&Digital
Antiferromagnetic Dimers of Ni(II) in the S=1 Spin-Ladder Na_2Ni_2(C_2O_4)_3(H_2O)_2
Creators: name: Mennerich, C.
name: Klauss, H. -H.
name: Broekelmann, M.
name: Litterst, F. J.
name: Golze, C.
name: Klingeler, R.
name: Kataev, V.
name: B"uchner, B.
name: Grossjohann, S. -N.
name: Brenig, W.
name: Goiran, M.
name: Rakoto, H.
name: Broto, J. -M.
name: Kataeva, O.
name: Price, D. J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We report the synthesis, crystal structure and magnetic properties of the S=1 2-leg spin-ladder compound Na_2Ni_2(C_2O_4)_3(H_2O)_2. The magnetic properties were examined by magnetic susceptibility and pulsed high field magnetization measurements. The magnetic excitations have been measured in high field high frequency ESR. Although the Ni(II) ions form structurally a 2-leg ladder, an isolated dimer model consistently describes the observations very well. The analysis of the temperature dependent magnetization data leads to a magnetic exchange constant of J=43 K along the rungs of the ladder and an average value of the g-factor of 2.25. From the ESR measurements, we determined the single ion anisotropy to D=11.5 K. The validity of the isolated dimer model is supported by Quantum Monte Carlo calculations, performed for several ratios of interdimer and intradimer magnetic exchange and taking into account the experimentally determined single ion anisotropy. The results can be understood in terms of the different coordination and superexchange angles of the oxalate ligands along the rungs and legs of the 2-leg spin ladder.
description: 8 pages, 10 figures