cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Computing hydrodynamic interactions in confined doubly-periodic geometries in linear time
Creators: name: Hashemi, Aref
name: Pelaez, Raul P.
name: Natesh, Sachin
name: Sprinkle, Brennan
name: Maxian, Ondrej
name: Gan, Zecheng
name: Donev, Aleksandar
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We develop a linearly-scaling variant of the Force Coupling Method [K. Yeo and M. R. Maxey, J. Fluid Mech. 649, 205-231 (2010)] for computing hydrodynamic interactions among particles confined to a doubly-periodic geometry with either a single bottom wall or two walls (slit channel) in the aperiodic direction. Our spectrally-accurate Stokes solver uses the Fast Fourier Transform (FFT) in the periodic $xy$ plane and Chebyshev polynomials in the aperiodic $z$ direction normal to the wall(s). We decompose the problem into two problems. The first is a doubly-periodic subproblem in the presence of particles (source terms) with free-space boundary conditions in the $z$ direction, which we solve by borrowing ideas from a recent method for rapid evaluation of electrostatic interactions in doubly-periodic geometries [O. Maxian, R. P. Peláez, L. Greengard and A. Donev, J. Chem. Phys. 154, 204107 (2021)]. The second is a correction subproblem to impose the boundary conditions on the wall(s). Instead of the traditional Gaussian kernel, we use the exponential of a semicircle kernel to model the source terms (body force) due to the presence of particles, and provide optimum values for the kernel parameters that ensure a given hydrodynamic radius with at least two digits of accuracy and rotational and translational invariance. The computation time of our solver, which is implemented in graphical processing units, scales linearly with the number of particles, and allows computations with about a million particles in less than a second for a sedimented layer of colloidal microrollers. We find that in a slit channel, a driven dense suspension of microrollers maintains the same two-layer structure as above a single wall, but moves at a substantially lower collective speed due to increased confinement.
Correspondences between scalar field and fluid fluctuations in curved spacetime
Creators: name: Satin, Seema
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A correspondence between scalar field fluctuations and generalized fluctuations in a hydrodynamic approximation of fields is obtained. The results presented here are of interest to field-fluid correspondences and form part of theoretical foundations in this area. The intention for such developments is to explore sub-hydro range mesoscopic physics for the relativistic fluids in curved spacetime. The fluid correspondences fall in the classical domain and can replace the quantum fields and fluctuations for scales around the hydrodynamic limits.The present article extends our earlier results with a more elaborate physical insight towards the quantum fluids and retention of partial quantum nature in a stochastic description in bulk of the fluids. This also accounts for non-thermal effects along with thermal and quantum fluctuations for the fields in the hydro limit. Hence the expressions presented here are very general in nature for various applications. The further scope of research that such developments give is discussed in the concluding section.
The harmonic structure of generic Kerr orbits
Creators: name: Grossman, Rebecca
name: Levin, Janna
name: Perez-Giz, Gabe
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Generic Kerr orbits exhibit intricate three-dimensional motion. We offer a classification scheme for these intricate orbits in terms of periodic orbits. The crucial insight is that for a given effective angular momentum $L$ and angle of inclination $ι$, there exists a discrete set of orbits that are geometrically $n$-leaf clovers in a precessing {\it orbital plane}. When viewed in the full three dimensions, these orbits are periodic in $r-θ$. Each $n$-leaf clover is associated with a rational number, $1+q_{rθ}=ω_θ/ω_r$, that measures the degree of perihelion precession in the precessing orbital plane. The rational number $q_{rθ}$ varies monotonically with the orbital energy and with the orbital eccentricity. Since any bound orbit can be approximated as near one of these periodic $n$-leaf clovers, this special set offers a skeleton that illuminates the structure of all bound Kerr orbits, in or out of the equatorial plane.
description: 14 pages, 8 figures. Submitted to Phys. Rev. D
Knotted surfaces and equivalencies of their diagrams without triple points
Creators: name: Jablonowski, Michal
Publisher: name: arXiv
Year: 2010
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: The singularity set of a generic standard projection to the three space of a closed surface linked in four space, consists of at most three types: double points, triple points or branch points. We say that this generic projection image is p-diagram if it does not contain any triple point. Two p-diagrams of equivalent surface links are called p-equivalent if there exists a finite sequence of local moves, such that each of them is one of the four moves taken from the seven on the well known Roseman list, that connects only p-diagrams. It is natural to ask: are any of two p-diagrams of equivalent surface links always p-equivalent? We introduce an invariant of p-equivalent diagrams and an example of linked surfaces that answers our question negatively.
Pairing of holes by confining strings in antiferromagnets
Creators: name: Grusdt, Fabian
name: Demler, Eugene
name: Bohrdt, Annabelle
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In strongly correlated quantum materials, the behavior of charge carriers is dominated by strong electron-electron interactions. These can lead to insulating states with spin order, and upon doping to competing ordered states including unconventional superconductivity. The underlying pairing mechanism remains poorly understood however, even in strongly simplified theoretical models. Recent advances in quantum simulation allow to study pairing in paradigmatic settings, e.g. in the $t-J$ and $t-J_z$ Hamiltonians. Even there, the most basic properties of paired states of only two dopants, such as their dispersion relation and excitation spectra, remain poorly studied in many cases. Here we provide new analytical insights into a possible string-based pairing mechanism of mobile holes in an antiferromagnet. We analyze an effective model of partons connected by a confining string and calculate the spectral properties of bound states. Our model is equally relevant for understanding Hubbard-Mott excitons consisting of a bound doublon-hole pair or confined states of dynamical matter in lattice gauge theories, which motivates our study of different parton statistics. Although an accurate semi-analytic estimation of binding energies is challenging, our theory provides a detailed understanding of the internal structure of pairs. For example, in a range of settings we predict heavy states of immobile pairs with flat-band dispersions -- including for the lowest-energy $d$-wave pair of fermions. Our findings shed new light on the long-standing question about the origin of pairing and competing orders in high-temperature superconductors.
description: 17 pages, 12 figures, 2 appendices
Rigid registration of 3D ultrasound images and computed tomography images for permanent breast seed implant brachytherapy treatment planning
Creators: name: Zhang, Xiaoying
Publisher: name: University of British Columbia
Year: 2019

description: Purpose: The purpose of this work is to further develop and to validate a prototype three-dimensional ultrasound (3DUS) system for permanent breast seed implant (PBSI) planning procedure. PBSI is a novel brachytherapy technique for early-stage breast cancer patients. Palladium-103 seeds are planned around the seroma cavity and implanted through the guidance of a needle implant template. Currently, PBSI plans are made based on computed tomography (CT) images, while the delivery is guided under freehand 2D ultrasound (US) images in the operating room. The difference on seroma visualization on CT and US complicates the interpretation of the plan during the delivery. A prototype PBSI 3DUS system has been developed and 3DUS images are desired for improved visualization in PBSI treatment planning. Materials and Methods: The PBSI 3DUS system includes a motorized scanner that drives a 2D US probe during scanning. An encoded mechanical arm is mounted on the scanner and tracks the location of the needle implant template, and the template can be then registered into the 3DUS imaging volume for visual guidance. A method was developed to rigidly register 3DUS images with CT images through a point-based registration. A 3D-printed model was made to provide visible landmarks in both imaging volumes. Gel breast phantoms were constructed to test the registration feasibility and accuracy. Results: A 3D-printed model with eight landmarks ranging over 6 cm in three dimensions was adopted for 3DUS-CT rigid registration process. The registration was performed on gel breast phantoms, with the 3DUS scanner oriented in a 40 range of lateral orientation. The average registration error was (1.9 ± 0.8) mm. The maximum error in 25 3DUS-CT registration trials was 4.6 mm, and 19 out of 25 (76%) trials had a registration error less than 2 mm. Conclusions: This work facilitated the clinical implementation of the PBSI 3DUS system. The 3DUS system was commissioned and a clinical quality assurance (QA) procedure with baseline data was made to monitor the system performance. A method was developed to achieve 3DUS-CT rigid registration and the registration was tested on gel breast phantoms.
Implementation of a three-qubit quantum error correction code in a cavity-QED setup
Creators: name: Ottaviani, Carlo
name: Vitali, David
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The correction of errors is of fundamental importance for the development of contemporary computing devices and of robust communication protocols. In this paper we propose a scheme for the implementation of the three-qubit quantum repetition code, exploiting the interaction of Rydberg atoms with the quantized mode of a microwave cavity field. Quantum information is encoded within two circular Rydberg states of the atoms and encoding and decoding process are realized within two separate microwave cavities. We show that errors due to phase noise fluctuations could be efficiently corrected using a state-of-the-art apparatus.
description: 9 pages, 5 figures. This is v2. Some misprints corrected, conclusions section extended, refs added. Accepted for publication on PRA
Augmenting Security and Privacy in the Virtual Realm: An Analysis of Extended Reality Devices
Creators: name: Cayir, Derin
name: Acar, Abbas
name: Lazzeretti, Riccardo
name: Angelini, Marco
name: Conti, Mauro
name: Uluagac, Selcuk
Publisher: name: arXiv
Year: 2024
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: In this work, we present a device-centric analysis of security and privacy attacks and defenses on Extended Reality (XR) devices, highlighting the need for robust and privacy-aware security mechanisms. Based on our analysis, we present future research directions and propose design considerations to help ensure the security and privacy of XR devices.
description: This is the author's version of the work. It is posted here for personal/educational use only. The definitive version was published in IEEE Security & Privacy Magazine Jan/Feb 2024
Catching proteins in liquid helium droplets
Creators: name: Bierau, Frauke
name: Kupser, Peter
name: Meijer, Gerard
name: von Helden, Gert
Publisher: name: arXiv
Year: 2010
Subjects: subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Biological Physics (physics.bio-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: An experimental approach is presented that allows for the incorporation of large mass/charge selected ions in liquid helium droplets. It is demonstrated that droplets can be efficiently doped with a mass/charge selected amino acid as well as with the much bigger m$\approx$12 000 amu protein Cytochrome C in selected charge states. The sizes of the ion-doped droplets are determined via electrostatic deflection. Under the experimental conditions employed, the observed droplet sizes are very large and range, dependent on the incorporated ion, from 10$^{10}$ helium atoms for protonated Phenylalanine to 10$^{12}$ helium atoms for Cytochrome C. As a possible explanation, a simple model based on the size- and internal energy-dependence of the pickup efficiency is given.
Transport of a passive scalar in wide channels with surface topography
Creators: name: Roggeveen, James V.
name: Stone, Howard A.
name: Kurzthaler, Christina
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We generalize classical dispersion theory for a passive scalar to derive an asymptotic long-time convection-diffusion equation for a solute suspended in a wide, structured channel and subject to a steady low-Reynolds-number shear flow. Our theory, valid for small roughness amplitudes of the channel, holds for general surface shapes expandable as a Fourier series. We determine an anisotropic dispersion tensor, which depends on the characteristic wavelengths and amplitude of the surface structure. For surfaces whose corrugations are tilted with respect to the applied flow direction, we find that dispersion along the principal direction (i.e., the principal eigenvector of the dispersion tensor) is at an angle to the main flow direction and becomes enhanced relative to classical Taylor dispersion. In contrast, dispersion perpendicular to it can decrease compared to the short-time diffusivity of the particles. Furthermore, for an arbitrary surface shape represented in terms of a Fourier decomposition, we find that each Fourier mode contributes at leading order a linearly-independent correction to the classical Taylor dispersion tensor.
description: under consideration for publication in the Journal of Physics: Condensed Matter (JPCM)
The transformative potential of Open Science
Creators: name: Pasquale, Valentina
Publisher: name: Zenodo
Year: 2021
Subjects: open science
science reproducibility
research integrity

description: Slides of the talk "The transformative potential of Open Science", given to the webinar "Promoting Open Research for the Future of Education", held online on December 14th 2021 and organized by Istituto Affari Internazionali. This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Complex Reasoning and Planning with Multi-Agent LLMs for Diverse Real-World Tasks
Creators: name: Wang, Xuan
Publisher: name: Zenodo
Year: 2025

description: Presented at the “NAIRR Pilot Inaugural Annual Meeting” (NSF Award #2452148), Arlington, VA, USA, February 19-21, 2025. https://zenodo.org/communities/nairr2025
Spin Liquid Ground State of the $S=1/2$ Kagome Heisenberg Model
Creators: name: Yan, Simeng
name: Huse, David A.
name: White, Steven R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Condensed matter physicists have long sought a realistic two-dimensional (2D) magnetic system whose ground state is a {\it spin liquid}---a zero temperature state in which quantum fluctuations have melted away any form of magnetic order. The nearest-neighbor $S=1/2$ Heisenberg model on the kagome lattice has seemed an ideal candidate, but in recent years some approximate numerical approaches to it have yielded instead a valence bond crystal. We have used the density matrix renormalization group to perform very accurate simulations on numerous cylinders with circumferences up to 12 lattice spacings, finding instead of the valence bond crystal a singlet-gapped spin liquid with substantially lower energy that appears to have $Z_2$ topological order. Our results, through a combination of very low energy, short correlation lengths and corresponding small finite size effects, a new rigorous energy bound, and consistent behavior on many cylinders, provide strong evidence that the 2D ground state of this model is a gapped spin liquid.
description: 8 pages, 7 figures
Residual-based error correction for neural operator accelerated infinite-dimensional Bayesian inverse problems
Creators: name: Cao, Lianghao
name: O'Leary-Roseberry, Thomas
name: Jha, Prashant K.
name: Oden, J. Tinsley
name: Ghattas, Omar
Publisher: name: arXiv
Year: 2022
Subjects: subject: Numerical Analysis (math.NA)
subject: Machine Learning (cs.LG)
subject: Computation (stat.CO)
subject: Machine Learning (stat.ML)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: We explore using neural operators, or neural network representations of nonlinear maps between function spaces, to accelerate infinite-dimensional Bayesian inverse problems (BIPs) with models governed by nonlinear parametric partial differential equations (PDEs). Neural operators have gained significant attention in recent years for their ability to approximate the parameter-to-solution maps defined by PDEs using as training data solutions of PDEs at a limited number of parameter samples. The computational cost of BIPs can be drastically reduced if the large number of PDE solves required for posterior characterization are replaced with evaluations of trained neural operators. However, reducing error in the resulting BIP solutions via reducing the approximation error of the neural operators in training can be challenging and unreliable. We provide an a priori error bound result that implies certain BIPs can be ill-conditioned to the approximation error of neural operators, thus leading to inaccessible accuracy requirements in training. To reliably deploy neural operators in BIPs, we consider a strategy for enhancing the performance of neural operators, which is to correct the prediction of a trained neural operator by solving a linear variational problem based on the PDE residual. We show that a trained neural operator with error correction can achieve a quadratic reduction of its approximation error, all while retaining substantial computational speedups of posterior sampling when models are governed by highly nonlinear PDEs. The strategy is applied to two numerical examples of BIPs based on a nonlinear reaction--diffusion problem and deformation of hyperelastic materials. We demonstrate that posterior representations of the two BIPs produced using trained neural operators are greatly and consistently enhanced by error correction.
A numerical approach for fluid deformable surfaces with conserved enclosed volume
Creators: name: Krause, Veit
name: Voigt, Axel
Publisher: name: arXiv
Year: 2022
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: We consider surface finite elements and a semi-implicit time stepping scheme to simulate fluid deformable surfaces. Such surfaces are modeled by incompressible surface Navier-Stokes equations with bending forces. Here, we consider closed surfaces and enforce conservation of the enclosed volume. The numerical approach builds on higher order surface parameterizations, a Taylor-Hood element for the surface Navier-Stokes part, appropriate approximations of the geometric quantities of the surface mesh redistribution and a Lagrange multiplier for the constraint. The considered computational examples highlight the solid-fluid duality of fluid deformable surfaces and demonstrate convergence properties that are known to be optimal for different sub-problems.
Non-Minimal Cosmological Model in Modified Yang--Mills Theory
Creators: name: Shchigolev, V. K.
name: Orekhova, G. N.
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In the present paper, we consider a model of non-minimal modified Yang-Mills theory in the Friedmann-Robertson-Walker cosmology, in which the Yang-Mills field couples to the scalar curvature through a function of its first invariant. We show that cosmic acceleration can be realized due to non-minimal gravitational coupling of the modified Yang-Mills theory. Besides general study, we consider in detail the case of power-law coupling function. We derive the basic equations for the cosmic scale factor in our model, and provide several examples of their solutions.
description: 7 pages
Two-photon emission in detuned resonance fluorescence
Creators: name: Casalengua, Eduardo Zubizarreta
name: del Valle, Elena
name: Laussy, Fabrice P.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We discuss two-photon correlations from the side peaks that are formed when a two-level system emitter is driven coherently, with a detuning between the driving source and the emitter (quasi-resonance fluorescence). We do so in the context of the theories of frequency-resolved photon correlations and homodyning, showing that their combination leads to a neat picture compatible with perturbative two-photon scattering that was popular in the early days of quantum electrodynamics. This should help to control, enhance and open new regimes of multiphoton emission. We also propose a way to evidence the quantum coherent nature of the process from photoluminescence only, through the observation of a collapse of the symmetry of the lineshape accompanied by a surge of its intensity of emission. We discuss several of our results in the light of recent experimental works.
description: 17 pages, 4 figures -- added ideal two-photon cascade formula (Eq. 3), additional references, corrected some typos & other minor changes. Submitted to Quantum Sci. Technol
The Carlitz shtuka
Creators: name: Taelman, Lenny
Publisher: name: arXiv
Year: 2010
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11G09

description: Recently we have used the Carlitz exponential map to define a finitely generated submodule of the Carlitz module having the right properties to be a function field analogue of the group of units in a number field. Similarly, we constructed a finite module analogous to the class group of a number field. In this short note more algebraic constructions of these "unit" and "class" modules are given and they are related to Ext modules in the category of shtukas.
description: 9 pages
Production of dibaryon $d_{NΩ}$ in kaon induced reactions
Creators: name: Liu, Jing
name: Lü, Qi-Fang
name: Liu, Chun-Hua
name: Chen, Dian-Yong
name: Dong, Yu-Bing
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this work, we propose to investigate the $d_{NΩ}$ dibaryon production in the process $K^- p \rightarrow d_{NΩ} \barΞ^0$ by utilizing the kaon beam with the typical momentum to be around 10 GeV, which may be available at COMPASS, OKA@U-70 and SPS@CERN. The cross sections for $K^- p \rightarrow d_{NΩ} \barΞ^0$ are estimated and in particular, the magnitude of the cross sections are evaluated to be several hundreds nanobarn at $P_K=20$ GeV. Considering that $d_{NΩ}$ dibaryon dominantly decay into $ΞΛ$ and $ΞΣ$, we also estimate the cross sections for $K^- p \to Ξ^0 Λ\barΞ^0$ and $K^- p \to Ξ^- Σ^+ \barΞ^0$, where the $d_{NΩ}$ dibaryon can be observed in the invariant mass distributions of $Ξ^0 Λ$ and $Ξ^- Σ^+ $, respectively.
description: 7 pages, 4 figures
title: ÐÐ¾Ð¸ÑÐº ÑÐµÐ³ÑÐ»ÑÑÐ¾ÑÐ¾Ð² Ð°ÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ ÐºÐ°Ð»ÑÑÐ¸ÐµÐ²ÑÑ ÐºÐ°Ð½Ð°Ð»Ð¾Ð², Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°Ð½Ð½ÑÑ Ð±ÐµÐ»ÐºÐ¾Ð¼ Orai3
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Search of Orai3-formed channels activity modifiers
Creators: name: ÐÑÐ¸Ð³Ð¾ÑÑÐµÐ², ÐÐ½Ð´ÑÐµÐ¹
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2019
Subjects: Ð´ÐµÐ¿Ð¾-Ð·Ð°Ð²Ð¸ÑÐ¸Ð¼ÑÐ¹ Ð²Ñ Ð¾Ð´
ÐºÐ°Ð»ÑÑÐ¸Ð¹
STIM
Orai
SOCE
Calcium

description: ÐÐ·Ð²ÐµÑÑÐ½Ð¾, ÑÑÐ¾ Ð±ÐµÐ»Ð¾Ðº Orai3 ÑÐ¾ÑÐ¼Ð¸ÑÑÐµÑ Ð´ÐµÐ¿Ð¾-Ð·Ð°Ð²Ð¸ÑÐ¸Ð¼ÑÐµ ÐºÐ°Ð»ÑÑÐ¸ÐµÐ²ÑÐµ ÐºÐ°Ð½Ð°Ð»Ñ, ÑÐ¿ÑÐ°Ð²Ð»ÑÐµÐ¼ÑÐµ Ð±ÐµÐ»ÐºÐ°Ð¼Ð¸ STIM. Ð¡ÐµÐ»ÐµÐºÑÐ¸Ð²Ð½Ð¾Ðµ ÑÐ²ÐµÐ»Ð¸ÑÐµÐ½Ð¸Ðµ Ð»Ð¸Ð±Ð¾ ÑÐ¼ÐµÐ½ÑÑÐµÐ½Ð¸Ðµ Ð°ÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ Orai3-ÑÐ¾Ð´ÐµÑÐ¶Ð°ÑÐ¸Ñ ÐºÐ°Ð½Ð°Ð»Ð¾Ð² Ð¾Ð±Ð»Ð°Ð´Ð°ÐµÑ Ð±Ð¾Ð»ÑÑÐ¸Ð¼ ÑÐµÑÐ°Ð¿ÐµÐ²ÑÐ¸ÑÐµÑÐºÐ¸Ð¼ Ð¿Ð¾ÑÐµÐ½ÑÐ¸Ð°Ð»Ð¾Ð¼. ÐÐ´Ð¸Ð½ Ð¸Ð· Ð²Ð°ÑÐ¸Ð°Ð½ÑÐ¾Ð² ÑÐµÐ³ÑÐ»ÑÑÐ¸Ð¸ Ð°ÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ ÐºÐ°Ð½Ð°Ð»Ð°, ÑÐ¾Ð´ÐµÑÐ¶Ð°ÑÐµÐ³Ð¾ Orai3 â Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ðµ Ð½Ð¸Ð·ÐºÐ¾Ð¼Ð¾Ð»ÐµÐºÑÐ»ÑÑÐ½ÑÑ ÑÐ¸Ð¼Ð¸ÑÐµÑÐºÐ¸Ñ ÑÐ¾ÐµÐ´Ð¸Ð½ÐµÐ½Ð¸Ð¹. ÐÐ»ÐµÑÐ¾ÑÐ½Ð°Ñ Ð»Ð¸Ð½Ð¸Ñ Ñ ÑÐºÑÐ¿ÑÐµÑÑÐ¸ÐµÐ¹ ÑÐºÐ·Ð¾Ð³ÐµÐ½Ð½ÑÑ Ð±ÐµÐ»ÐºÐ¾Ð² STIM2 Ð¸ Orai3 ÑÐ²Ð»ÑÐµÑÑÑ ÑÐ¾ÑÐ¾ÑÐµÐ¹ Ð¼Ð¾Ð´ÐµÐ»ÑÑ Ð´Ð»Ñ Ð¿Ð¾Ð¸ÑÐºÐ° Ð¸Ð½Ð³Ð¸Ð±Ð¸ÑÐ¾ÑÐ¾Ð² Ð¸ Ð°ÐºÑÐ¸Ð²Ð°ÑÐ¾ÑÐ¾Ð² ÐºÐ°Ð½Ð°Ð»Ð¾Ð² Orai3. ÐÐµÑÐ²Ð¸ÑÐ½ÑÐ¹ ÑÐºÑÐ¸Ð½Ð¸Ð½Ð³ Ð¾Ð±Ð½Ð°ÑÑÐ¶Ð¸Ð» Ð½ÐµÑÐºÐ¾Ð»ÑÐºÐ¾ Ð¿Ð¾ÑÐµÐ½ÑÐ¸Ð°Ð»ÑÐ½ÑÑ ÐºÐ°Ð½Ð´Ð¸Ð´Ð°ÑÐ¾Ð² Ð½Ð° ÑÑÐ¸ ÑÐ¾Ð»Ð¸. ÐÐ° Ð²ÑÐ¾ÑÐ¾Ð¼ ÑÑÐ°Ð¿Ðµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ð¹ Ð±ÑÐ»Ð¸ Ð¾ÑÐ¾Ð±ÑÐ°Ð½Ñ 2 Ð²ÐµÑÐµÑÑÐ²Ð°, Ð¿ÑÐ¾ÑÐ²Ð»ÑÑÑÐ¸Ñ Ð¸Ð½Ð³Ð¸Ð±Ð¸ÑÐ¾ÑÐ½ÑÐµ ÑÐ²Ð¾Ð¹ÑÑÐ²Ð°.
description: Orai3 protein forms store-operated calcium channels activated by STIM proteins. Selective decrease or increase in Orai3-formed channels activity has a huge therapeutic potential. Application of low molecular weight chemicals might modify channel activity. Cell line with exogenous expression of STIM2 and Orai3 proteins is a good model for the search of activity modifiers. First stage screening revealed several compounds potentially suitable for these roles. Two compounds have demonstrated inhibitory properties.
Leveraging LLMs to Synthesize Data Sets with Medication Reconciliation Errors
Creators: name: Gokhale, Swapna
Publisher: name: Zenodo
Year: 2025

description: Presented at the “NAIRR Pilot Inaugural Annual Meeting” (NSF Award #2452148), Arlington, VA, USA, February 19-21, 2025. https://zenodo.org/communities/nairr2025
Searches for new physics at the Tevatron
Creators: name: Jaffré, Michel
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The Tevatron collider has provided the CDF and D0 experiences with large datasets as input to a rich program of searches for physics beyond the standard model. The results presented here are a partial survey of recent searches conducted by the two collaborations using up to 6 /fb of data.
Bias-reduced estimation of mean absolute deviation around the median
Creators: name: Miniato, Michele Lambardi di San
Publisher: name: arXiv
Year: 2022
Subjects: subject: Methodology (stat.ME)
subject: Statistics Theory (math.ST)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: A bias-reduced estimator is proposed for the mean absolute deviation parameter of a median regression model. A workaround is devised for the lack of smoothness in the sense conventionally required in general bias-reduced estimation. A local asymptotic normality property and a Bahadur--Kiefer representation suffice in proving the validity of the bias correction. The proposal is developed under a classical asymptotic regime but, based on simulations, it seems to work also in high-dimensional settings.
description: 5 pages, 4 figures, submitted to Statistics & Probability Letters
Automated Acanthamoeba polyphaga detection and computation of Salmonella typhimurium concentration in spatio-temporal images
Creators: name: Tsibidis, George D
name: Burroughs, Nigel J
name: Gaze, William
name: Wellington, Elizabeth M H
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences

description: Interactions between bacteria and protozoa is an increasing area of interest, however there are a few systems that allow extensive observation of the interactions. We examined a surface system consisting of non nutrient agar with a uniform bacterial lawn that extended over the agar surface, and a spatially localised central population of amoebae. The amoeba fed on bacteria and migrated over the plate. Automated image analysis techniques were used to locate and count amoebae, cysts and bacteria coverage in a series of spatial images. Most algorithms were based on intensity thresholding, or a modification of this idea with probabilistic models. Our strategy was two tiered, we performed an automated analysis for object classification and bacteria counting followed by user intervention/reclassification using custom written Graphical User Interfaces.
description: 25 pages
An exploration of the mobility experiences of active older adults with low income
Creators: name: Franke, Thea
Publisher: name: University of British Columbia
Year: 2019

description: Mobility enables older adults to maintain their physical health, independence and participation in society. In general, mobility has predominantly been understood in functional terms. Mobility is most often measured as physical movement and/or travel behaviour. Less attention has been paid to the subjective and temporal dimensions of older adults’ mobility experiences. In addition, older adults with low incomes are under-represented in mobility research. This dissertation uses a constructivist grounded theory methodology to describe the mobility experiences of active older adults with low income. The studies within this dissertation are set in Metro Vancouver; they utilize data from a group of 6 participants selected from a cross-sectional study of 161 older adults of low income. The first study demonstrates how a novel approach (grounded visualization) can be used to explore sociospatial and temporal complexities of older adults' mobility. A grounded visualization approach can provide a deeper understanding of the multi-faceted nature of older adults' mobility experiences. Findings illustrate that time is necessary for older adults' engagement with place; familiarity influences spatial perceptions of local and distant ‘neighbourhoods’; and older adults prioritize destinations that allow them to engage in multiple activities. The second study provides an in-depth qualitative description of the mobility experiences of older adults living with low income. The following themes were found to support mobility: maintaining a sense of self, being resourceful, openness to engagement, engaging in superficial contact, experiencing social capital, accessing transportation, leaving the immediate neighbourhood and facing affordability influence active mobility choices over time. The third study adapts a mobility conceptual framework to re-frame our understanding of older adults’ mobility experiences. The adapted framework offers a physiological, subjective, contextual and temporal approach that provides a more comprehensive conceptualization of the nature and processes of older adults’ mobility. The adapted framework uses a sliding scale in order to demonstrate the fluid, multi-faceted and interrelated nature of the various elements that influence mobility over time. Taken collectively, these studies fill methodological and conceptual gaps in the literature and provide data on an understudied population. The adapted framework can be incorporated into new approaches to study older adults’ mobility.
A transcript of a focus group discussion workshop on: The Client and project OSH
Creators: name: Ndekugri E. Issaka
name: Ankrah A. Nii
name: Adaku, Ebenezer
Publisher: name: Zenodo
Year: 2021
Subjects: Construction; Occupational Safety and Health; Risk Management; Health and Safety Coordination; Client

description: Occupational safety and health (OSH) still remains a challenge to the construction industry world-wide and source of worry for industry stakeholders. The Construction (Design and Management) Regulations (CDM) have been the primary tool to drive changes in the management of health and safety in the UK construction industry. Five (5) years after its latest Regulations (CDM 2015), there is a need for introspection, stock-taking and honest discussion on current practice and how to manage more collaboratively OSH risks on construction projects. This transcript, of a focus group discussion workshop, captures industry feedback on experiences and views regarding the implementation of CDM 2015 at the pre-construction stage of construction projects with a focus on the role of the CDM Client.
Anomalous local coordination, density fluctuations, and void statistics in disordered hyperuniform many-particle ground states
Creators: name: Zachary, Chase E.
name: Torquato, Salvatore
Publisher: name: arXiv
Year: 2010
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We provide numerical constructions of one-dimensional hyperuniform many-particle distributions that exhibit unusual clustering and asymptotic local number density fluctuations growing more slowly than the volume of an observation window but faster than the surface area. By targeting a specified form of the structure factor at small wavenumbers using collective density variables, we are able to tailor the form of asymptotic local density fluctuations while simultaneously measuring the effect of imposing weak and strong constraints on the available degrees of freedom within the system. Even in one dimension, the long-range effective interactions induce clustering and nontrivial phase transitions in the resulting ground-state configurations. We provide an analytical connection between the fraction of contrained degrees of freedom within the system and the disorder-order phase transition for a class of target structure factors by examining the realizability of the constrained contribution to the pair correlation function. Our results explicitly demonstrate that disordered hyperuniform many-particle ground states, and therefore also point distributions, with substantial clustering can be constructed. We directly relate the local coordination structure of our point patterns to the distribution of the void space external to the particles, and we provide a scaling argument for the configurational entropy of the systems when only a small fraction of the degrees of freedom are constrained. By emphasizing the intimate connection between geometrical constraints on the particle distribution and structural regularity, our work has direct implications for higher-dimensional systems, including an understanding of the appearance of hyperuniformity and quasi-long-range pair correlations in maximally random strictly jammed packings of hard spheres.
description: 34 pages, 11 figures
Non-invasive color imaging through scattering medium under broadband illumination
Creators: name: Sun, Yunong
name: Liu, Jianbin
name: Chen, Hui
name: Xi, Zhuoran
name: Zhou, Yu
name: He, Yuchen
name: Zheng, Huaibin
name: Xu, Zhuo
name: Yuan, Yuan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Image and Video Processing (eess.IV)
subject: FOS: Physical sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Due to the complex of mixed spectral point spread function within memory effect range, it is unreliable and slow to use speckle correlation technology for non-invasive imaging through scattering medium under broadband illumination. The contrast of the speckles will drastically drop as the light source's spectrum width increases. Here, we propose a method for producing the optical transfer function with several speckle frames within memory effect range to image under broadband illumination. The method can be applied to image amplitude and color objects under white LED illumination. Compared to other approaches of imaging under broadband illumination, such as deep learning and modified phase retrieval, our method can provide more stable results with faster convergence speed, which can be applied in high speed scattering imaging under natural light illumination.
title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° ÑÐµÐºÐ¾Ð¼ÐµÐ½Ð´Ð°ÑÐ¸Ð¸ Ð´Ð»Ñ ÑÐ¾Ð·Ð´Ð°Ð½Ð¸Ñ Ð¸Ð½ÑÑÑÑÐºÑÐ¸Ð¸ Ð¿Ð¾ Ð¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ñ Ð±ÑÑÐ¾Ð²Ð¾Ð¹ ÑÐµÑ Ð½Ð¸ÐºÐ¾Ð¹
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Development of recommendations for creating instructions for use household appliances
Creators: name: ÐÑÑÐ¸Ð½Ð°, ÐÐ¾Ð»Ð¸Ð½Ð°
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2021
Subjects: Ð¢ÐµÑ Ð½Ð¸ÑÐµÑÐºÐ°Ñ Ð´Ð¾ÐºÑÐ¼ÐµÐ½ÑÐ°ÑÐ¸Ñ
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description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¸Ð·Ð»Ð¾Ð¶ÐµÐ½Ñ ÑÐµÐºÐ¾Ð¼ÐµÐ½Ð´Ð°ÑÐ¸Ð¸ Ð¸ Ð¾ÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÐ¸ ÑÐ¾Ð·Ð´Ð°Ð½Ð¸Ñ Ð¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°ÑÐµÐ»ÑÑÐºÐ¾Ð¹ Ð¸Ð½ÑÑÑÑÐºÑÐ¸Ð¸ Ðº Ð±ÑÑÐ¾Ð²ÑÐ¼ Ð¿ÑÐ¸Ð±Ð¾ÑÐ°Ð¼. Ð Ð°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ð¾ Ð¿Ð¾Ð½ÑÑÐ¸Ðµ Ð¸Ð½ÑÑÑÑÐºÑÐ¸Ð¸, ÐµÐµ ÑÑÑÑÐºÑÑÑÐ°, Ð³ÑÐ°ÑÐ¸ÑÐµÑÐºÐ¸Ðµ ÑÐ¾ÑÑÐ°Ð²Ð»ÑÑÑÐ¸Ðµ, Ð¿ÐµÐ´Ð°Ð³Ð¾Ð³Ð¸ÑÐµÑÐºÐ¸Ðµ Ð¸ Ð¿ÑÐ¸ÑÐ¾Ð»Ð¸Ð½Ð³Ð²Ð¸ÑÑÐ¸ÑÐµÑÐºÐ¸Ðµ ÑÐµÐºÐ¾Ð¼ÐµÐ½Ð´Ð°ÑÐ¸Ð¸, Ð° ÑÐ°ÐºÐ¶Ðµ ÐºÐ¾Ð¼Ð¼ÑÐ½Ð¸ÐºÐ°ÑÐ¸Ð²Ð½ÑÐµ ÑÐ°ÐºÑÐ¸ÐºÐ¸ Ð¸ ÑÑÑÐ°ÑÐµÐ³Ð¸Ð¸, Ð¿ÑÐ¸Ð¼ÐµÐ½Ð¸Ð¼ÑÐµ Ðº ÑÐµÐºÑÑÐ°Ð¼ Ð¸Ð½ÑÑÑÑÐºÑÐ¸Ð¸. ÐÐ·ÑÑÐµÐ½Ñ Ð¿Ð¾Ð½ÑÑÐ¸Ñ Ð¸ Ð²Ð¸Ð´Ñ Ð±ÑÑÐ¾Ð²Ð¾Ð¹ ÑÐµÑÐ½Ð¸ÐºÐ¸. ÐÐ° Ð±Ð°Ð·Ðµ Ð¾Ð¿ÑÐ¾ÑÐ° Ð¸ ÑÐµÐ¹ÑÐ¸Ð½Ð³Ð¾Ð²ÑÑ ÑÐ¿Ð¸ÑÐºÐ¾Ð² Ð½Ð° ÑÐ¿ÐµÑÐ¸Ð°Ð»Ð¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ð½ÑÑ ÑÐ°Ð¹ÑÐ°Ñ Ð²ÑÑÐ²Ð»ÐµÐ½Ñ Ð½Ð°Ð¸Ð±Ð¾Ð»ÐµÐµ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·ÑÐµÐ¼ÑÐµ Ð±ÑÑÐ¾Ð²ÑÐµ Ð¿ÑÐ¸Ð±Ð¾ÑÑ. ÐÑÐ¾Ð²ÐµÐ´ÐµÐ½ Ð°Ð½Ð°Ð»Ð¸Ð· ÑÑÐºÐ¾Ð²Ð¾Ð´ÑÑÐ² Ð¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°ÑÐµÐ»Ñ Ð²ÑÑÐ²Ð»ÐµÐ½Ð½ÑÑ Ð±ÑÑÐ¾Ð²ÑÑ Ð¿ÑÐ¸Ð±Ð¾ÑÐ¾Ð².
description: This paper contains recommendations and features of creating a user manual for household appliances. The concept of instruction, its structure, graphic components, pedagogical and psycholinguistic recommendations, as well as communicative tactics and strategies applicable to instruction texts are considered. The concepts and types of household appliances have been studied. On the basis of a survey and rating lists on specialized sites, the most used household appliances were identified. The analysis of the user manuals of the dentified household appliances was carried out.
The enrichment history of cosmic metals
Creators: name: Wiersma, Robert P. C.
name: Schaye, Joop
name: Vecchia, Claudio Dalla
name: Booth, C. M.
name: Theuns, Tom
name: Aguirre, Anthony
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We use a suite of cosmological, hydrodynamical simulations to investigate the chemical enrichment history of the Universe. Specifically, we trace the origin of the metals back in time to investigate when various gas phases were enriched and by what halo masses. We find that the age of the metals decreases strongly with the density of the gas in which they end up. At least half of the metals that reside in the diffuse intergalactic medium (IGM) at redshift zero (two) were ejected from galaxies above redshift two (three). The mass of the haloes that last contained the metals increases rapidly with the gas density. More than half of the mass in intergalactic metals was ejected by haloes with total masses less than 1e11 solar masses and stellar masses less than 1e9 solar masses. The range of halo masses that contributes to the enrichment is wider for the hotter part of the IGM. By combining the `when' and `by what' aspects of the enrichment history, we show that metals residing in lower density gas were typically ejected earlier and by lower mass haloes.
description: 14 pages, 10 figures, accepted by MNRAS, minor changes to the submitted version
Solution of master equations by fermionic-duality: Time-dependent charge and heat currents through an interacting quantum dot proximized by a superconductor
Creators: name: Ortmanns, Lara C.
name: Wegewijs, Maarten R.
name: Splettstoesser, Janine
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We analyze the time-dependent solution of master equations by exploiting fermionic duality, a dissipative symmetry applicable to a large class of open systems describing quantum transport. Whereas previous studies mostly exploited duality relations after partially solving the evolution equations, we here systematically exploit the invariance under the fermionic duality mapping from the very beginning when setting up these equations. Moreover, we extend the resulting simplifications -- so far applied to the local state evolution- to non-local observables such as transport currents. We showcase the exploitation of fermionic duality for a quantum dot with strong interaction -- covering both the repulsive and attractive case -- proximized by contact with a large-gap superconductor which is weakly probed by charge and heat currents into a wide-band normal-metal electrode. We derive the complete time-dependent analytical solution of this problem involving non-equilibrium Cooper pair transport, Andreev bound states and strong interaction. Additionally exploiting detailed balance we show that even for this relatively complex problem the evolution towards the stationary state can be understood analytically in terms of the stationary state of the system itself via its relation to the stationary state of a dual system with inverted Coulomb interaction, superconducting pairing and applied voltages.
description: Submission to SciPost
Spectroscopic Confirmation of a z=2.79 Multiply Imaged Luminous Infrared Galaxy Behind the Bullet Cluster
Creators: name: Gonzalez, Anthony H.
name: Papovich, Casey
name: Bradač, Maruša
name: Jones, Christine
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We report spectroscopic confirmation and high-resolution infrared imaging of a z=2.79 triply-imaged galaxy behind the Bullet Cluster. This source, a Spitzer-selected luminous infrared galaxy (LIRG), is confirmed via polycyclic aromatic hydrocarbon (PAH) features using the Spitzer Infrared Spectrograph (IRS) and resolved with HST WFC3 imaging. In this galaxy, which with a stellar mass of M*=4e9 Msun is one of the two least massive ones studied with IRS at z>2, we also detect H_2 S(4) and H_2 S(5) pure rotational lines (at 3.1 sigma and 2.1 sigma) - the first detection of these molecular hydrogen lines in a high-redshift galaxy. From the molecular hydrogen lines we infer an excitation temperature T=377+68-84 K. The detection of these lines indicates that the warm molecular gas mass is 6(+36-4)% of the stellar mass and implies the likely existence of a substantial reservoir of cold molecular gas in the galaxy. Future spectral observations at longer wavelengths with facilities like the Herschel Space Observatory, the Large Millimeter Telescope, and the Atacama Pathfinder EXperiment (APEX) thus hold the promise of precisely determining the total molecular gas mass. Given the redshift, and using refined astrometric positions from the high resolution imaging, we also update the magnification estimate and derived fundamental physical properties of this system. The previously published values for total infrared luminosity, star formation rate, and dust temperature are confirmed modulo the revised magnification; however we find that PAH emission is roughly a factor of five stronger than would be predicted by the relations between the total infrared and PAH luminosity reported for SMGs and starbursts in Pope et al. (2008).
description: 8 pages, 4 figures, accepted to ApJ
EndoPilot: A multimodal AI model with context based Anatomical and Pathological descriptor
Creators: name: Virupakshappa, Kushal
name: Sahu, Avinash
Publisher: name: Zenodo
Year: 2025

description: Presented at the “NAIRR Pilot Inaugural Annual Meeting” (NSF Award #2452148), Arlington, VA, USA, February 19-21, 2025. https://zenodo.org/communities/nairr2025
Contribution of the t-channel $N^*(1535)$ exchange for the $p\bar p \to ϕϕ$ reaction
Creators: name: Shi, Jun
name: Dai, Jian-Ping
name: Zou, Bing-Song
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Since the $N^*(1535)$ resonance was found to have large coupling to the strangeness due to its possible large $s\bar s$ component, we investigate the possible contribution of the t-channel $N^*(1535)$ exchange for the $p\bar p \to ϕϕ$ reaction. Our calculation indicates that the new mechanism gives very significant contribution for the energies above 2.25 GeV and may be an important source for evading the Okubo-Zweig-Iizuka rule in the $ϕ$ production from $N \bar{N}$ annihilation.
description: 6 pages, 3 figures