cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Dual Quantum Electrodynamics: Dyon-Dyon and Charge-Monopole Scattering in a High-Energy Approximation
Creators: name: Gamberg, Leonard
name: Milton, Kimball A.
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We develop the quantum field theory of electron-point magnetic monopole interactions and more generally, dyon-dyon interactions, based on the original string-dependent ``nonlocal'' action of Dirac and Schwinger. We demonstrate that a viable nonperturbative quantum field theoretic formulation can be constructed that results in a string {\em independent} cross section for monopole-electron and dyon-dyon scattering. Such calculations can be done only by using nonperturbative approximations such as the eikonal and not by some mutilation of lowest-order perturbation theory.
description: 24 pages, 1 ps figure, REVTeX
Growth-Temperature Dependence of Conductivity at the LaCrO$_3$/SrTiO$_3$ (001) Interface
Creators: name: Al-Tawhid, A. H.
name: Frick, J. R.
name: Dougherty, D. B.
name: Kumah, D. P.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The effect of growth conditions on the structural and electronic properties of the polar/non-polar LaCrO$_3$/SrTiO$_3$ (LCO/STO) interface has been investigated. The interface is either insulating or metallic depending on growth conditions. A high sheet carrier concentration of 2x10$^{16}$ cm$^{-2}$ and mobility of 30,000 cm$^2$/V s is reported for the metallic interfaces, which is similar to the quasi-two dimensional gas at the LaAlO$_{3}$/SrTiO$_{3}$ interface with similar growth conditions. High-resolution synchrotron X-ray-based structural determination of the atomic-scale structures of both metallic and insulating LCO/STO interfaces show chemical intermixing and an interfacial lattice expansion. Angle resolved photoemission spectroscopy of 2 and 4 uc metallic LCO/STO shows no intensity near the Fermi level indicating that the conducting region is occurring deep enough in the substrate to be inaccessible to photoemission spectroscopy. Post-growth annealing in flowing oxygen causes a reduction in the sheet carrier concentration and mobility for the metallic interface while annealing the insulating interface at high temperatures and low oxygen partial pressures results in metallicity. These results highlight the critical role of defects related to oxygen vacancies on the creation of mobile charge carriers at the LCO/STO heterointerface.
Replacing the Soft FEC Limit Paradigm in the Design of Optical Communication Systems
Creators: name: Alvarado, Alex
name: Agrell, Erik
name: Lavery, Domanic
name: Maher, Robert
name: Bayvel, Polina
Publisher: name: arXiv
Year: 2015
Subjects: subject: Information Theory (cs.IT)
subject: Optics (physics.optics)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: The FEC limit paradigm is the prevalent practice for designing optical communication systems to attain a certain bit-error rate (BER) without forward error correction (FEC). This practice assumes that there is an FEC code that will reduce the BER after decoding to the desired level. In this paper, we challenge this practice and show that the concept of a channel-independent FEC limit is invalid for soft-decision bit-wise decoding. It is shown that for low code rates and high order modulation formats, the use of the soft FEC limit paradigm can underestimate the spectral efficiencies by up to 20%. A better predictor for the BER after decoding is the generalized mutual information, which is shown to give consistent post-FEC BER predictions across different channel conditions and modulation formats. Extensive optical full-field simulations and experiments are carried out in both the linear and nonlinear transmission regimes to confirm the theoretical analysis.
Stochastic Digital Backpropagation with Residual Memory Compensation
Creators: name: Irukulapati, Naga V.
name: Marsella, Domenico
name: Johannisson, Pontus
name: Agrell, Erik
name: Secondini, Marco
name: Wymeersch, Henk
Publisher: name: arXiv
Year: 2015
Subjects: subject: Information Theory (cs.IT)
subject: Optics (physics.optics)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Stochastic digital backpropagation (SDBP) is an extension of digital backpropagation (DBP) and is based on the maximum a posteriori principle. SDBP takes into account noise from the optical amplifiers in addition to handling deterministic linear and nonlinear impairments. The decisions in SDBP are taken on a symbol-by-symbol (SBS) basis, ignoring any residual memory, which may be present due to non-optimal processing in SDBP. In this paper, we extend SDBP to account for memory between symbols. In particular, two different methods are proposed: a Viterbi algorithm (VA) and a decision directed approach. Symbol error rate (SER) for memory-based SDBP is significantly lower than the previously proposed SBS-SDBP. For inline dispersion-managed links, the VA-SDBP has up to 10 and 14 times lower SER than DBP for QPSK and 16-QAM, respectively.
description: 7 pages, accepted to publication in 'Journal of Lightwave Technology (JLT)'
Existence Theorem for Split Involution Constraint Algebra
Creators: name: Batalin, I. A.
name: Lyakhovich, S. L.
name: Tyutin, I. V.
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Existence theorem is proven for the generating equations of the split involution constraint algebra. The structure of the general solution is established, and the characteristic arbitrariness in generating functions is described.
description: 24 pages
Capacities from the Chiu-Tamarkin complex
Creators: name: Zhang, Bingyu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: 53D35(Primary)

description: In this paper, we construct a sequence $(c_k)_{k\in\mathbb{N}}$ of symplectic capacities based on the Chiu-Tamarkin complex $C_{T,\ell}$, a $\mathbb{Z}/\ell$-equivariant invariant coming from the microlocal theory of sheaves. We compute $(c_k)_{k\in\mathbb{N}}$ for convex toric domains, which are the same as the Gutt-Hutchings capacities. Our method also works for the prequantized contact manifold $T^*X\times S^1$. We define a sequence of "contact capacities" $([c]_k)_{k\in\mathbb{N}}$ on the prequantized contact manifold $T^*X\times S^1$, and we compute them for prequantized convex toric domains.
description: v5: Correct the definition of the contact capacity. To appear in Journal of Symplectic Geometry. Comments are welcome!
Comparative analysis of GIS software used for mapping in Russia. Using GIS in Term Papers
Creators: name: Lemenkova, Polina
Publisher: name: figshare
Year: 2018
Subjects: subject: 90901 Cartography
subject: FOS: Environmental engineering

description: Report on Course 'Geoinformatics'. BSc Studies at Lomonosov Moscow State University
Wavelet Spectra of JACEE Events
Creators: name: Suzuki, Naomichi
name: Biyajima, Minoru
name: Ohsawa, Akinori
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Pseudo-rapidity distributions of two high multiplicity events Ca-C and Si-AgBr observed by the JACEE are analysed by the wavelet transform. Wavelet spectra of those events are calculated and compared with the simulation calculations. The wavelet spectrum of Ca-C event somewhat resembles to that simulated with the uniform random numbers. That of Si-AgBr event is not reproduced by simulation calculations with Poisson random numbers, uniform random numbers, or a p-model.
description: 9 pages, latex, 6 figures (not included, available on request)
Additional file 1: of Circular RNA circ-ZKSCAN1 inhibits bladder cancer progression through miR-1178-3p/p21 axis and acts as a prognostic factor of recurrence
Creators: name: Bi, Junming
name: Liu, Hongwei
name: Dong, Wei
name: Xie, Weibin
name: He, Qingqing
name: Cai, Zijian
name: Huang, Jian
name: Lin, Tianxin
Publisher: name: figshare
Year: 2019
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Virology

description: Table S1 The sequences of primers, oligonucleotides and probes used in this study. (PDF 47 kb)
Energy services, material cycles and the Stock Flow Service nexus
Creators: name: Kalt, Gerald
name: Wiedenhofer, Dominik
Publisher: name: Zenodo
Year: 2018

description: Presentation on "Energy services, material cycles and the Stock Flow Service nexus" given at Expert Workshop - Conceptualizing services and the stock-flow-service nexus, 22 & 23 October 2018, Institute of Social Ecology
Scalar Meson Decay Constants and the Nature of the a_0(980)
Creators: name: Maltman, K.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The a_0(980), a_0(1450) and K_0(1430) decay constants are determined using a form of QCD sum rules known to produce a very accurate determination of the rho decay constant. The ratio of a_0(980) to K_0(1430) decay constants is shown to be ~0.6, ruling out both the ``loosely-bound-K\bar{K}-molecule'' and Gribov minion scenarios for the a_0(980). Solutions for the isovector scalar spectral function obtained in the literature from sum rule analyses employing a more restrictive single-resonance-plus-continuum form of the input spectral ansatz, are also investigated. These solutions, which suggest, in contrast to the present results, negligible coupling of the a_0(980) to the isovector scalar density are shown to produce a poor quality match between the OPE and hadronic sides of the sum rules employed here, and hence to be strongly disfavored relative to the present solution.
description: Presented to the International Conference on Quark Nuclear Physics, Adelaide, Feb. 21-25, 2000
Prefrontal symptomatology in people with Amyotrophic Lateral Sclerosis: clinical utility and psychometric properties of Prefrontal Symptoms Inventory (PSI)
Creators: name: Ruiz Sánchez de León, José M.
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 520301
subject: Clinical neuropsychology

description: Ruiz-Sánchez De León, J.M., Motos-Muñoz, M., Juarez, M., Sancho-Cantus. D., Pedrero-Pérez, E.J., Fuente, C. y De la Rubia-Ortí, J.E. (2019). Prefrontal Symptomatology in People with Amyotrophic Lateral Sclerosis: Clinical Utility and Psychometric Properties of Prefrontal Symptoms Inventory (PSI). La Prensa Médica Argentina, 105(10), 727-735.
Extremely correlated fermi liquid of $t$-$J$ model in two dimensions
Creators: name: Mai, Peizhi
name: Shastry, B. Sriram
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the two-dimensional $t$-$J$ model with second neighbor hopping parameter $t'$ and in a broad range of doping $δ$ using a closed set of equations from the {\em Extremely Correlated Fermi Liquid} (ECFL) theory. We obtain asymmetric energy distribution curves and symmetric momentum distribution curves of the spectral function, consistent with experimental data. We further explore the Fermi surface and local density of states for different parameter sets. Using the spectral function, we calculate the resistivity, Hall number and spin susceptibility. The curvature change in the resistivity curves with varying $δ$ is presented and connected to intensity loss in Angle Resolved Photoemission Spectroscopy (ARPES) experiments. We also discuss the role of the super-exchange $J$ in the spectral function and the resistivity in the optimal to overdoped density regimes.
Polarization Drift Channel Model for Coherent Fibre-Optic Systems
Creators: name: Czegledi, Cristian B.
name: Karlsson, Magnus
name: Agrell, Erik
name: Johannisson, Pontus
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optics (physics.optics)
subject: Information Theory (cs.IT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: A theoretical framework is introduced to model the dynamical changes of the state of polarization during transmission in coherent fibre-optic systems. The model generalizes the one-dimensional phase noise random walk to higher dimensions, accounting for random polarization drifts, emulating a random walk on the Poincaré sphere, which has been successfully verified using experimental data. The model is described in the Jones, Stokes and real four-dimensional formalisms, and the mapping between them is derived. Such a model will be increasingly important in simulating and optimizing future systems, where polarization-multiplexed transmission and sophisticated digital signal processing will be natural parts. The proposed polarization drift model is the first of its kind as prior work either models polarization drift as a deterministic process or focuses on polarization-mode dispersion in systems where the state of polarization does not affect the receiver performance. We expect the model to be useful in a wide-range of photonics applications where stochastic polarization fluctuation is an issue.
description: 15 pages, 4 figures
Description and analysis of the map of land assessment for draining suitability (from the Tyumen Atlas, 1971-1976, Russia)
Creators: name: Lemenkova, Polina
Publisher: name: figshare
Year: 2018
Subjects: subject: 90901 Cartography
subject: FOS: Environmental engineering

description: Practical Work for the Course 'Natural Resource Accounting (NRA)'. Bachelor's (BSc) studies at Lomonosov Moscow State Univeristy. (handwritten, no other version available)
Introduction to AI-READI, Studying Salutogenesis in T2DM (Bridge2AI Lecture Series)
Creators: name: Lee, Cecilia
name: Patel, Bhavesh
name: Baxter, Sally
Publisher: name: Zenodo
Year: 2024
Subjects: subject: Salutogenesis
subject: Type 2 Diabetes
subject: Diabetes
subject: AI-ready
subject: FAIR data

description: The official description is provided below. More information is available at https://bridge2ai.org/event/trmbridge2ai-lecture-introduction-to-ai-readi-studying-salutogenesis-in-t2dm.

Description

In collaboration with the Grand Challenges (GCs) at Bridge2AI, the Bridge Center Training, Recruitment, and Mentorship Working Group presents a new education module launching this fall: “Introduction to the Bridge2AI GC Datasets.” Please join us on Thursday, October 10th 2024, for the first lecture in this series “Introduction to AI-READI, Studying Salutogenesis in T2DM.

A recording of the lecture is availabe at https://vimeo.com/bridge2aitraining.
Brans-Dicke cosmology mimicking running vacuum
Creators: name: Perez, Javier de Cruz
name: Sola, Joan
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Brans-Dicke (BD) cosmology is reconsidered from an approach in which the model can be formulated in $Λ$CDM form, but at the expense of replacing the rigid cosmological constant $Λ$ with a dynamical quasivacuum component which depends on a small parameter $ε$. The product of $ε$ times the BD-parameter $ω_{\rm BD}$ becomes exactly determined in terms of the ordinary cosmological parameters. The GR limit is recovered for $ω_{\rm BD}\to\infty$ when $ε\to 0$. We solve the background cosmology of the model as well as the perturbations equations. When fitted to the cosmological data, we find that the BD-cosmology, transcribed in such an effective GR form, appears to be competitive with the $Λ$CDM and emulates the running vacuum model.
description: Version accepted for publication in Mod. Phys. Lett. A
3rd Interplanetary Network Localization, Time History, Fluence, Peak Flux, and Distance Lower Limit of the February 28, 1997 Gamma-Ray Burst
Creators: name: Hurley, K.
name: Costa, E.
name: Feroci, M.
name: Frontera, F.
name: Cline, T.
name: Fiume, D. Dal
name: Orlandini, M.
name: Boer, M.
name: Mazets, E.
name: Aptekar, R.
name: Golenetskii, S.
name: Terekhov, M.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The gamma-ray burst of 1997 February 28 was localized using the arrival-time analysis method with the Ulysses, BeppoSAX, and WIND spacecraft. The result is a plus-or-minus 31.5 arcsec (3 sigma) wide annulus of possible arrival directions which intersects both the position of the burst determined independently by the SAX Wide Field Camera, and the position of a fading X-ray source detected by the SAX focussing X-ray telescopes, and reduces these source location areas by factors of 7 and 1.5 respectively. The combination of the annulus and the SAX locations, a 0.76 square arcminute error box, is consistent with that of an optical transient source and an extended object, possibly a galaxy. We also present the time history, peak flux, and fluence of this event, and derive a model-independent lower limit to the source distance of ~11000 AU.
description: 11 pages, postscript, 2 figures. Accepted for publication in ApJ Letters
Agent cognition through micro-simulations: Adaptive and tunable intelligence with NetLogo LevelSpace
Creators: name: Head, Bryan
name: Wilensky, Uri
Publisher: name: arXiv
Year: 2018
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: We present a method of endowing agents in an agent-based model (ABM) with sophisticated cognitive capabilities and a naturally tunable level of intelligence. Often, ABMs use random behavior or greedy algorithms for maximizing objectives (such as a predator always chasing after the closest prey). However, random behavior is too simplistic in many circumstances and greedy algorithms, as well as classic AI planning techniques, can be brittle in the context of the unpredictable and emergent situations in which agents may find themselves. Our method, called agent-centric Monte Carlo cognition (ACMCC), centers around using a separate agent-based model to represent the agents' cognition. This model is then used by the agents in the primary model to predict the outcomes of their actions, and thus guide their behavior. To that end, we have implemented our method in the NetLogo agent-based modeling platform, using the recently released LevelSpace extension, which we developed to allow NetLogo models to interact with other NetLogo models. As an illustrative example, we extend the Wolf Sheep Predation model (included with NetLogo) by using ACMCC to guide animal behavior, and analyze the impact on agent performance and model dynamics. We find that ACMCC provides a reliable and understandable method of controlling agent intelligence, and has a large impact on agent performance and model dynamics even at low settings.
description: Model source code available here: https://github.com/qiemem/Wolf-Sheep-Predation-Micro-Sims, In: Unifying Themes in Complex Systems IX. ICCS 2018. Springer Proceedings in Complexity. Springer, Cham
Maternal Sleep and Mental Health for Early Pregnancy
Creators: name: Hassan, Ibrahim Sabrie
Publisher: name: Zenodo
Year: 2025
Subjects: Maternal Sleep and Mental Health for Early Pregnancy

description: Abstract 

The background of maternal sleep and mental health refers to the relevant information

and context regarding the relationship between a mother’s sleep patterns and her mental well-

being. It is well known that sleep plays a crucial role in maintaining good mental health. Sleep

disturbances, such as insufficient sleep or poor quality, have been linked to various mental health

 issues, including depression, anxiety, and postpartum mental disorders.
Analytical estimates of proton acceleration in laser-produced turbulent plasmas
Creators: name: Beyer, Konstantin
name: Reville, Brian
name: Bott, Archie
name: Park, Hye-Sook
name: Sarkar, Subir
name: Gregori, Gianluca
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: With the advent of high power lasers, new opportunities have opened up for simulating astrophysical processes in the laboratory. We show that 2nd-order Fermi acceleration can be directly investigated at the National Ignition Facility, Livermore. This requires measuring the momentum-space diffusion of 3 MeV protons produced within a turbulent plasma generated by a laser. Treating Fermi acceleration as a biased diffusion process, we show analytically that a measurable broadening of the initial proton distribution is then expected for particles exiting the plasma.
description: 7 pages, 6 figures; Added missing plasma parameters in Table 1, improved consideration of additional broadening
1936 March, Department of the Interior, National Park Service, Southwest Monuments Report, "Throne Room in Clan House.".
Creators: name: Pinkley, Frank
Year: 1936
Subjects: subject: 1100 A.D. - 1450 A.D.
valueUri: https://core.tdar.org/browse/temporal-keyword/5400/1100-ad-1450-ad
subject: Hohokam
valueUri: https://core.tdar.org/browse/culture-keyword/21/hohokam
subject: Casa Grande Ruins National Monument
valueUri: https://core.tdar.org/browse/site-name/1435/casa-grande-ruins-national-monument
subject: Domestic Structures
valueUri: https://core.tdar.org/browse/site-type/256/domestic-structures
subject: Building Materials
valueUri: https://core.tdar.org/browse/material-type/8/building-materials
subject: Architectural Documentation
valueUri: https://core.tdar.org/browse/investigation-type/16/architectural-documentation

description: This report discusses what was thought to be a "Throne" in a clan house at Casa Grande Ruins National Monument.
Parallel two-scale finite element implementation of a system with varying microstructures
Creators: name: Richardson, Omar
name: Lakkis, Omar
name: Muntean, Adrian
name: Venkataraman, Chandrasekhar
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 35Q92, 65N15

description: We propose a two-scale finite element method designed for heterogeneous microstructures. Our approach exploits domain diffeomorphisms between the microscopic structures to gain computational efficiency. By using a conveniently constructed pullback operator, we are able to model the different microscopic domains as macroscopically dependent deformations of a reference domain. This allows for a relatively simple finite element framework to approximate the underlying PDE system with a parallel computational structure. We apply this technique to a model problem where we focus on transport in plant tissues. We illustrate the accuracy of the implementation with convergence benchmarks and show satisfactory parallelization speed-ups. We further highlight the effect of the heterogeneous microscopic structure on the output of the two-scale systems. Our implementation (publicly available on GitHub) builds on the deal.II FEM library. Application of this technique allows for an increased capacity of microscopic detail in multiscale modeling, while keeping running costs manageable.
description: 21 pages, 8 figures, code available, special issue
Identification of Genuine and Adulterated Pinellia ternata by Mid-Infrared (MIR) and Near-Infrared (NIR) Spectroscopy with Partial Least Squares - Discriminant Analysis (PLS-DA)
Creators: name: Sun, Fei
name: Chen, Yu
name: Wang, Kai-Yang
name: Wang, Shu-Mei
name: Liang, Sheng-Wang
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Neuroscience
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Cancer

description: Spectroscopy techniques are powerful tools for the rapid identification of traditional Chinese medicine because they provide chemical information with no sample preparation. In this study, a rapid and reliable approach was proposed to differentiate Pinellia ternata from adulterated P. ternata, processed P. ternata, and adulterated processed P. ternata by mid-infrared (MIR) and near-infrared (NIR) spectroscopy coupled with a partial least squares-discriminant analysis (PLS-DA) algorithm. One-hundred sixty-five batches of P. ternata, adulterated P. ternata, processed P. ternata, and adulterated processed P. ternata samples were collected and prepared. All of the samples were characterized by MIR and NIR spectra. The PLS-DA was first applied to build the discriminant model on the individual data matrices. Next, the data matrices coming from MIR and NIR spectra were fused at the low-level and mid-level, and PLS-DA models were built on the fused data. The classification accuracy, sensitivity, and specificity were calculated to evaluate the PLS-DA models. The results showed the use of mid-level fusion strategy, in particular, integrating latent variables from different spectral data matrices, allowed the correct discrimination of all samples in the training and testing sets. In the case of mid-level fusion with latent variables, the accuracy of the PLS-DA model was 100%, and the sensitivity and specificity of the PLS-DA model were all 1. The present discriminant model can be successful to differentiate P. ternata from adulterated P. ternata, processed P. ternata, and adulterated processed P. ternata. This study first provides a new path for the quality control of P. ternata.
A dynamic stock flow model of future option spaces
Creators: name: Wiedenhofer, Dominik
name: Erb, Karlheinz
name: Haberl, Helmut
Publisher: name: Zenodo
Year: 2018

description: Presentation on "A dynamic stock flow model of future option spaces" given at the "MAT_STOCKS
 Understanding the Role of Material Stock Patterns for the Transformation to a Sustainable Society, KickOff Workshop" 12.04.2018, Institute of Social Ecology
Handmade map of the Kamchatka Peninsula, Russian Far East: black ink, aquarelle, pencil
Creators: name: Lemenkova, Polina
Publisher: name: figshare
Year: 2018
Subjects: subject: 90901 Cartography
subject: FOS: Environmental engineering

description: Student Report for the Course 'Mapping Design and Illustations'. Bachelor's (BSc) studies at Lomonosov Moscow State University
Impact of 4D channel distribution on the achievable rates in coherent optical communication experiments
Creators: name: Eriksson, Tobias A.
name: Fehenberger, Tobias
name: Andrekson, Peter A.
name: Karlsson, Magnus
name: Hanik, Norbert
name: Agrell, Erik
Publisher: name: arXiv
Year: 2015
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We experimentally investigate mutual information and generalized mutual information for coherent optical transmission systems. The impact of the assumed channel distribution on the achievable rate is investigated for distributions in up to four dimensions. Single channel and wavelength division multiplexing (WDM) transmission over transmission links with and without inline dispersion compensation are studied. We show that for conventional WDM systems without inline dispersion compensation, a circularly symmetric complex Gaussian distribution is a good approximation of the channel. For other channels, such as with inline dispersion compensation, this is no longer true and gains in the achievable information rate are obtained by considering more sophisticated four-dimensional (4D) distributions. We also show that for nonlinear channels, gains in the achievable information rate can also be achieved by estimating the mean values of the received constellation in four dimensions. The highest gain for such channels is seen for a 4D correlated Gaussian distribution.
Chiral Symmetry Breaking in an External Field
Creators: name: Leung, C. N.
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The effects of an external field on the dynamics of chiral symmetry breaking are studied using quenched, ladder QED as our model gauge field theory. It is found that a uniform external magnetic field enables the chiral symmetry to be spontaneously broken at weak gauge couplings, in contrast with the situation when no external field is present. The broken chiral symmetry is restored at high temperatures as well as at high chemical potentials. The nature of the two chiral phase transitions is different: the transition at high temperatures is a continuous one whereas the phase transition at high chemical potentials is discontinuous.
description: RevTeX; talk presented at the 2nd Latin American Symposium on High Energy Physics, San Juan, Puerto Rico, April 1998
Modulation Format Independent Joint Polarization and Phase Tracking for Coherent Receivers
Creators: name: Czegledi, Cristian B.
name: Agrell, Erik
name: Karlsson, Magnus
name: Johannisson, Pontus
Publisher: name: arXiv
Year: 2016
Subjects: subject: Information Theory (cs.IT)
subject: Optics (physics.optics)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: The state of polarization and the carrier phase drift dynamically during transmission in a random fashion in coherent optical fiber communications. The typical digital signal processing solution to mitigate these impairments consists of two separate blocks that track each phenomenon independently. Such algorithms have been developed without taking into account mathematical models describing the impairments. We study a blind, model-based tracking algorithm to compensate for these impairments. The algorithm dynamically recovers the carrier phase and state of polarization jointly for an arbitrary modulation format. Simulation results show the effectiveness of the proposed algorithm, having a fast convergence rate and an excellent tolerance to phase noise and dynamic drift of the polarization. The computational complexity of the algorithm is lower compared to state-of-the-art algorithms at similar or better performance, which makes it a strong candidate for future optical systems.
Do Higher Order Perturbative Corrections Upset |V_{cb}| and |V_{ub}| Determined from Semileptonic Widths?
Creators: name: Uraltsev, N. G.
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It is shown that large perturbative corrections found previously for semileptonic beauty and charm decays are associated with using inappropriate pole masses. The latter, in the perturbative expansion, suffer from the 1/m_Q infrared renormalon which is absent in the widths, which leads to similar large corrections in m_Q. Pole masses are neither measured directly in experiment. If the widths are related to parameters determined in experiment, the overall impact of the calculated second order corrections becomes strongly suppressed and leads to less than 1\% change in |V_{cb}| and |V_{ub}|. Even in charm decays the perturbative corrections appear to be very moderate in the consistent OPE-compliant treatment. The updated estimate of |V_{cb}| is given, based on recent accurate determination of m_b and α_s(1 GeV). The theoretical accuracy of determination of |V_{ub}| from Γ_{sl}(b->u) appears to be good as well.
description: 16 pages, no figures; to appear in IJMPA. SUMMARY of CHANGES made for the journal version: 1. The Comment on the Luke's theorem is added as a footnote after Eq.(18). 2. Misprint in sign is corrected in Eq.(18) 3. Obvious misprint in the normalization of BR(b->u) in Eqs.(25), (27) is eliminated; the results of numerical analysis of b->u are formulated in a more precise way. Coefficients in Eqs.(19) and (20) changed insignificantly due to using the normalization scale 1.3GeV instead of
Many-to-English Machine Translation Tools, Data, and Pretrained Models
Creators: name: Gowda, Thamme
name: Zhang, Zhao
name: Mattmann, Chris A
name: May, Jonathan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: While there are more than 7000 languages in the world, most translation research efforts have targeted a few high-resource languages. Commercial translation systems support only one hundred languages or fewer, and do not make these models available for transfer to low resource languages. In this work, we present useful tools for machine translation research: MTData, NLCodec, and RTG. We demonstrate their usefulness by creating a multilingual neural machine translation model capable of translating from 500 source languages to English. We make this multilingual model readily downloadable and usable as a service, or as a parent model for transfer-learning to even lower-resource languages.
description: To-appear: ACL 2021 System Demonstrations
Deep learning of mixing by two 'atoms' of stratified turbulence
Creators: name: Salehipour, Hesam
name: Peltier, W. Richard
Publisher: name: arXiv
Year: 2018
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Current global ocean models rely on ad-hoc parameterizations of diapycnal mixing, in which the efficiency of mixing is globally assumed to be fixed at $20\%$, despite increasing evidence that this assumption is questionable. As an ansatz for small-scale ocean turbulence, we may focus on stratified shear flows susceptible to either Kelvin-Helmholtz (KHI) or Holmboe wave (HWI) instability. Recently, an unprecedented volume of data has been generated through direct numerical simulation (DNS) of these flows. In this paper, we describe the application of deep learning methods to the discovery of a generic parameterization of diapycnal mixing using the available DNS dataset. We furthermore demonstrate that the proposed model is far more universal compared to recently published parameterizations. We show that a neural network appropriately trained on KHI- and HWI-induced turbulence is capable of predicting mixing efficiency associated with unseen regions of the parameter space well beyond the range of the training data. Strikingly, the high-level patterns learned based on the KHI and weakly stratified HWI are `transferable' to predict HWI-induced mixing efficiency under much more strongly stratified conditions, suggesting that through the application of appropriate networks, significant universal abstractions of density stratified turbulent mixing have been recognized.
description: 12 pages, 5 figures and 1 table. Revised version submitted to JFM Rapids
Information Rates of Next-Generation Long-Haul Optical Fiber Systems Using Coded Modulation
Creators: name: Liga, Gabriele
name: Alvarado, Alex
name: Agrell, Erik
name: Bayvel, Polina
Publisher: name: arXiv
Year: 2016
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: A comprehensive study of the coded performance of long-haul spectrally-efficient WDM optical fiber transmission systems with different coded modulation decoding structures is presented. Achievable information rates are derived for three different square QAM formats and the optimal format is identified as a function of distance and specific decoder implementation. The four cases analyzed combine hard-decision (HD) or soft-decision (SD) decoding together with either a bit-wise or a symbol-wise demapper, the last two suitable for binary and nonbinary codes, respectively. The information rates achievable for each scheme are calculated based on the mismatched decoder principle. These quantities represent true indicators of the coded performance of the system for specific decoder implementations and when the modulation format and its input distribution are fixed. In combination with the structure of the decoder, two different receiver-side equalization strategies are also analyzed: electronic dispersion compensation and digital backpropagation. We show that, somewhat unexpectedly, schemes based on nonbinary HD codes can achieve information rates comparable to SD decoders and that, when SD is used, switching from a symbol-wise to a bit-wise decoder results in a negligible penalty. Conversely, from an information-theoretic standpoint, HD binary decoders are shown to be unsuitable for spectrally-efficient, long-haul systems.
description: submitted to IEEE/OSA Journal of Lightwave Technology
Constraining the Selectron Mass in the Process e^- + gamma --> neutralino_1 +selectron_{L/R}^- --> e^- + 2 neutralino_1
Creators: name: Blöchinger, C.
name: Fraas, H.
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: With the process $e^-γ\to \tildeχ_1^0 \tilde{e}_{L/R}^- \to e^- \tildeχ_1^0 \tildeχ_1^0$ it is possible to constrain selectron masses above the kinematical limit of the pair production process in $e^+e^-$ colliders. We investigate these mass ranges and discuss the possibility to test the renormalization group equations for the selectron masses.
description: 5 pages, LaTeX, 4 ps figures, uses appolb.cls (included); talk presented at the XXIII School of Theoretical Physics, Ustron, Poland, September 15-22, 1999
Press release: ACT4CAP27 Annual Consortium Meeting 2025
Creators: name: Wageningen University & Research
name: Possessio Kft.
Publisher: name: ACT4CAP27 Horizon Europe project GA Nr. 101134874.
Year: 2025

description: Rome, Italy – February 25-26, 2025

The ACT4CAP27 Annual Consortium Meeting 2025 is taking place at the University of Roma Tre, bringing together project partners to review progress and plan the next steps in supporting EU agri-food policies beyond 2027. The meeting focuses on strengthening analytical tools, refining research methodologies, and fostering collaboration among partners.

ACT4CAP27 Further information

ACT4CAP27 Horizon EU project: Advancing Capacity and analytical Tools for supporting Common Agricultural Policies post 2027

ACT4CAP27 Project coordination: Wageningen Social & Economic Research, The Hague, NLContact: act4cap27@wur.nl  | Website: https://act4cap27.eu/ | https://cordis.europa.eu/project/id/101134874

Project duration: 1 March 2024 – 28 February 2029

Funding acknowledgement

ACT4CAP27 is funded by the European Union. Horizon Europe Grant Agreement No. 101134874. Views and opinions expressed are however those of the authors only and do not necessarily reflect those of the European Union or the European Commission. Neither the European Union nor the granting authority can be held responsible for them.
Improved Lower Bounds on Mutual Information Accounting for Nonlinear Signal-Noise Interaction
Creators: name: Irukulapati, Naga V.
name: Secondini, Marco
name: Agrell, Erik
name: Johannisson, Pontus
name: Wymeersch, Henk
Publisher: name: arXiv
Year: 2016
Subjects: subject: Information Theory (cs.IT)
subject: Optics (physics.optics)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: In fiber-optic communications, evaluation of mutual information (MI) is still an open issue due to the unavailability of an exact and mathematically tractable channel model. Traditionally, lower bounds on MI are computed by approximating the (original) channel with an auxiliary forward channel. In this paper, lower bounds are computed using an auxiliary backward channel, which has not been previously considered in the context of fiber-optic communications. Distributions obtained through two variations of the stochastic digital backpropagation (SDBP) algorithm are used as auxiliary backward channels and these bounds are compared with bounds obtained through the conventional digital backpropagation (DBP). Through simulations, higher information rates were achieved with SDBP, {which can be explained by the ability of SDBP to account for nonlinear signal--noise interactions
description: 8 pages, 5 figures, accepted for publication in Journal of Lightwave Technology
Hyperglycemia Affects the Expression of Inflammatory Genes in Peripheral Blood Mononuclear Cells of Patients with Type 2 Diabetes
Creators: name: Akbari, Mohamad
name: Vahideh Hassan-Zadeh
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Objective: Innate immune system dysregulation and chronic low-grade inflammation are associated with the pathogenesis of type 2 diabetes (T2D). The aim of this study was to investigate the effect of hyperglycemia on mRNA expression of four inflammatory genes in peripheral blood mononuclear cells (PBMCs) of pre-diabetic and diabetic individuals. Methods: In a case-control study, quantitative real-time PCR was used to analyze changes in IL-1β, IL1R1, IL-6, and IL6ST gene expression in PBMCs of 30 T2D patients with high blood glucose levels, 24 diabetic and nondiabetic individuals with moderately high blood glucose levels and 30 controls with normal blood glucose levels. Results: In T2D patients with high blood glucose, IL-1β expression showed a 2.69-fold increase (p = 0.0380), while IL-6 expression levels were 3.45 fold lower (p = 0.0045) versus control subjects. Moreover, compared with control group the expression of IL1R1 and IL-6 genes both were downregulated in individuals with moderately high blood glucose levels by 2.38 (p = 0.0365) and 4.34 fold (p = 0.0027), respectively. In addition, hemoglobin A1C (A1C) levels were positively correlated with IL-1β expression and fasting plasma glucose (FPG) levels showed a positive correlation with IL-1β and a negative correlation with IL-6 expression. Conclusion: The observed changes in both IL-1β and IL-6 mRNA levels in PBMCs may contribute to the development of inflammatory processes involved in the pathogenesis of T2D. Downregulation of IL1R1 in individuals with mild hyperglycemia may indicate an attempt to reduce the pro-inflammatory effects of IL-1β via auto-stimulation.
The Strange Quark Mass From Flavor Breaking in Hadronic Tau Decays
Creators: name: Kambor, J.
name: Maltman, K.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The strange quark mass is extracted from a finite energy sum rule (FESR) analysis of the flavor-breaking difference of light-light and light-strange quark vector-plus-axial-vector correlators, using spectral functions determined from hadronic tau decay data. We point out problems for existing FESR treatments associated with potentially slow convergence of the perturbative series for the mass-dependent terms in the OPE over certain parts of the FESR contour, and show how to construct alternate weight choices which not only cure this problem, but also (1) considerably improve the convergence of the integrated perturbative series, (2) strongly suppress contributions from the region of s values where the errors on the strange current spectral function are still large and (3) essentially completely remove uncertainties associated with the subtraction of longitudinal contributions to the experimental decay distributions. The result is an extraction of m_s with statistical errors comparable to those associated with the current experimental uncertainties in the determination of the CKM angle, V_{us}. We find m_s(1 GeV)=158.6\pm 18.7\pm 16.3\pm 13.3 MeV (where the first error is statistical, the second due to that on V_{us}, and the third theoretical).
description: 13 pages, 2 figures; final version to appear in Phys. Rev. D; expanded versions of Figure 2 and Reference 30
WAIT: Protecting the Integrity of Web Applications with Binary-Equivalent Transparency
Creators: name: Meißner, Echo
name: Kargl, Frank
name: Erb, Benjamin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Modern single page web applications require client-side executions of application logic, including critical functionality such as client-side cryptography. Existing mechanisms such as TLS and Subresource Integrity secure the communication and provide external resource integrity. However, the browser is unaware of modifications to the client-side application as provided by the server and the user remains vulnerable against malicious modifications carried out on the server side. Our solution makes such modifications transparent and empowers the browser to validate the integrity of a web application based on a publicly verifiable log. Our Web Application Integrity Transparency (WAIT) approach requires (1) an extension for browsers for local integrity validations, (2) a custom HTTP header for web servers that host the application, and (3) public log servers that serve the verifiable logs. With WAIT, the browser can disallow the execution of undisclosed application changes. Also, web application providers cannot dispute their authorship for published modifications anymore. Although our approach cannot prevent every conceivable attack on client-side web application integrity, it introduces a novel sense of transparency for users and an increased level of accountability for application providers particularly effective against targeted insider attacks.
description: To be published in the 36th ACM/SIGAPP Symposium on Applied Computing (SAC '21)
Additional file 2: of Circular RNA circ-ZKSCAN1 inhibits bladder cancer progression through miR-1178-3p/p21 axis and acts as a prognostic factor of recurrence
Creators: name: Bi, Junming
name: Liu, Hongwei
name: Dong, Wei
name: Xie, Weibin
name: He, Qingqing
name: Cai, Zijian
name: Huang, Jian
name: Lin, Tianxin
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Virology

description: Table S2 Identification of differentially expressed circRNAs in BCa cells (PDF 10 kb)