cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Concept of dynamic memory in economics
Creators: name: Tarasova, Valentina V.
name: Tarasov, Vasily E.
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Economics (econ.GN)
subject: FOS: Economics and business
subject: 91B02, 91B55, 34A08, 26A33

description: In this paper we discuss a concept of dynamic memory and an application of fractional calculus to describe the dynamic memory. The concept of memory is considered from the standpoint of economic models in the framework of continuous time approach based on fractional calculus. We also describe some general restrictions that can be imposed on the structure and properties of dynamic memory. These restrictions include the following three principles: (a) the principle of fading memory; (b) the principle of memory homogeneity on time (the principle of non-aging memory); (c) the principle of memory reversibility (the principle of memory recovery). Examples of different memory functions are suggested by using the fractional calculus. To illustrate an application of the concept of dynamic memory in economics we consider a generalization of the Harrod-Domar model, where the power-law memory is taken into account.
description: 32 pages, pdf
Spin waves and local magnetizations on the Penrose tiling
Creators: name: Szallas, Attila
name: Jagannathan, Anuradha
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We consider a Heisenberg antiferromagnet on the Penrose tiling, a quasiperiodic system having an inhomogeneous Neel-ordered ground state. Spin wave energies and wavefunctions are studied in the linear spin wave approximation. A linear dispersion law is found at low energies, as in other bipartite antiferromagnets, with an effective spin wave velocity lower than in the square lattice. Spatial properties of eigenmodes are characterized in several different ways. At low energies, eigenstates are relatively extended, and show multifractal scaling. At higher energies, states are more localized, and, depending on the energy, confined to sites of a specified coordination number. The ground state energy of this antiferromagnet, and local staggered magnetizations are calculated. Perpendicular space projections are presented in order to show the underlying simplicity of this "complex" ground state. A simple analytical model, the two-tier Heisenberg star, is presented to explain the staggered magnetization distribution in this antiferromagnetic system.
description: 14 pages, 21 figures
Interfacing Reconfigurable Logic with a CPU
Creators: name: Walker, Kip
name: Budiu, Mihai
name: Goldstein, Seth C.
Publisher: name: Carnegie Mellon University
Year: 1980
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Reconfigurable computing devices have achieved substantial performance improvements over conventional processors on some computational kernels. These benefits derive from hardware customization which avoids the mismatch between the basic requirements of the algorithms and the architectures of the processors. A reconfigurable fabric alone is not sufficient for general-purpose computing since it can be ill-suited to executing entire programs due to space limitations, dataflow-centricity, and inefficiency at implementing some operations (e.g. floating-point arithmetic). These observations have led to the appearance of numerous designs which place some form of reconfigurable logic under the control of a general-purpose processor. The authors explore the ways in which a reconfigurable fabric can be interfaced with a general-purpose processor. While off-chip reconfigurable fabrics have proven to be quite effective at performing streaming, data-intensive computations, they require large streams of data to overcome the latency between the devices. We explore the design space for an on-chip fabric, i.e., a reconfigurable function unit (RFU). An RFU allows smaller portions of application to be mapped to the fabric in the form of custom instructions. Though the speedups achieved for stream based computations will in general be much larger than those for custom instructions, they are limited to a smaller class of applications. Custom instructions, however, can be found in a larger class of programs, and compiler techniques can automatically create them
Source-lens clustering and intrinsic-alignment bias of weak-lensing estimators
Creators: name: Valageas, Patrick
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We estimate the amplitude of the source-lens clustering bias and of the intrinsic-alignment bias of weak lensing estimators of the two-point and three-point convergence and cosmic-shear correlation functions. We use a linear galaxy bias model for the galaxy-density correlations, as well as a linear intrinsic-alignment model. For the three-point and four-point density correlations, we use analytical or semi-analytical models, based on a hierarchical ansatz or a combination of one-loop perturbation theory with a halo model. For two-point statistics, we find that the source-lens clustering bias is typically several orders of magnitude below the weak lensing signal, except when we correlate a very low-redshift galaxy ($z_2 \la 0.05$) with a higher redshift galaxy ($z_1 \ga 0.5$), where it can reach $10\%$ of the signal for the shear. For three-point statistics, the source-lens clustering bias is typically of order $10\%$ of the signal, as soon as the three galaxy source redshifts are not identical. The intrinsic-alignment bias is typically about $10\%$ of the signal for both two-point and three-point statistics. Thus, both source-lens clustering bias and intrinsic-alignment bias must be taken into account for three-point estimators aiming at a better than $10\%$ accuracy.
description: 27 pages
Alabama Livestock Research Report 2022
Creators: name: Department Of Animal Sciences
Publisher: name: Auburn University
Year: 2022
Subjects: animal sciences, beef forage, forage management, heifer fertility, outreach, metabolomics, meat sciences, swine nutrition, transcriptomics

description: It is with great pleasure that we welcome you to the first edition of the Alabama Livestock Research Report. Our goal is to provide a comprehensive overview for producers and stakeholders across the state highlighting the research and outreach activities developed in the Department of Animal Sciences at Auburn University. This publication combines reports from scientists and graduate students on campus and Experiment Stations. Herein we provide in-depth information on our research programs, ranging from animal nutrition and genetics to management and production practices. Additionally, we showcase our outreach activities, such as extension programs and partnerships with industry stakeholders.
Logistic map with memory from economic model
Creators: name: Tarasova, Valentina V.
name: Tarasov, Vasily E.
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Economics (econ.GN)
subject: FOS: Economics and business
subject: 26A33, 34A08

description: A generalization of the economic model of logistic growth, which takes into account the effects of memory and crises, is suggested. Memory effect means that the economic factors and parameters at any given time depend not only on their values at that time, but also on their values at previous times. For the mathematical description of the memory effects, we use the theory of derivatives of non-integer order. Crises are considered as sharp splashes (bursts) of the price, which are mathematically described by the delta-functions. Using the equivalence of fractional differential equations and the Volterra integral equations, we obtain discrete maps with memory that are exact discrete analogs of fractional differential equations of economic processes. We derive logistic map with memory, its generalizations, and "economic" discrete maps with memory from the fractional differential equations, which describe the economic natural growth with competition, power-law memory and crises.
description: 19 pages, pdf
Refinement of Parameters of Six Selected Galactic Potential Models
Creators: name: Bajkova, Anisa
name: Bobylev, Vadim
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: This paper is devoted to the refinement of the parameters of the six three-component (bulge, disk, halo) axisymmetric Galactic gravitational potential models on the basis of modern data on circular velocities of Galactic objects located at distances up to 200 kpc from the Galactic center. In all models the bulge and disk are described by the Miyamoto--Nagai expressions. To describe the halo, the models of Allen-Santillán (I), Wilkinson-Evans (II), Navarro-Frenk-White (III), Binney (IV), Plummer (V), and Hernquist (VI) are used. The sought-for parameters of potential models are determined by fitting the model rotation curves to the measured velocities, taking into account restrictions on the local dynamical matter density $ρ_\odot=0.1 M_\odot$ pc$^{-3}$ and the vertical force $|K_{z=1.1}|/2πG=77 M_\odot $ pc$^{-2}$. A comparative analysis of the refined potential models is made and for each of the models the estimates of a number of the Galactic characteristics are presented.
description: 8 pages, 2 figures, 2 tables. arXiv admin note: substantial text overlap with arXiv:1607.08050, arXiv:1703.01413
Interfaces that learn : a learning apprentice for calendar management
Creators: name: Jourdan, Jean
Publisher: name: Carnegie Mellon University
Year: 2006
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Abstract: "It is well accepted that knowledge base development and maintenance costs are key obstacles to the further proliferation of knowledge-based systems. We consider here an approach to dramatically reduce this cost by developing learning apprentice systems: knowledge-based advisors which learn from their users throughout their life-cycle. In particular, we present a learning apprentice for calendar management, which allows users to schedule meetings and provides advice regarding parameters such as the meeting time, duration, topic, and location. Each observed user's decision is used as a training example of the correct decision in the current context.The system learns to provide increasingly competent advice by generalizing from these training examples. We present preliminary results showing that knowledge automatically acquired by two learning methods (ID3 and Back-Propagation) compares favorably to manually developed rules when used to schedule meetings for a university faculty member. The system has recently been put into use on a regular basis by one secretary in our environement [sic] and is currently undergoing further testing and development."
title: Exploring reflective practice engagement and development within trainee sport and exercise scientists
Creators: name: Huntley, E
Publisher: name: Liverpool John Moores University
Year: 2021

description: It is generally accepted that engaging in reflective practice (RP) is important to be a competent and effective practitioner. However, evidence supporting this claim is sparse, highly theoretical and located within a variety of domains. Whilst the literature focusing on RP within sport has grown and continues to do so, there is also still a paucity of research specifically within a sport and exercise science (SES) setting, even though specific professional development focusing on RP exists for these SES practitioners within the British Association of Sport and Exercise Sciences (BASES) accreditation scheme. Therefore, the aim of this thesis is to evaluate the impact and role of an existing RP curriculum, as well as explore and plot the longitudinal development of RP within trainee Sport and Exercise Scientists. In doing so, a variety of data collection methods were utilised across several studies, including both qualitative (e.g., interviews) and quantitative (e.g., questionnaires) approaches. Findings confirmed that RP is a complex, highly individualised and context-dependent process. In addition, the RP workshop had a positive and significant impact on participants’ perceived confidence and competence to reflect. This was coupled with significant decreases in habitual action (HA) or ‘acting without thinking’ which suggested increases in self-awareness. Furthermore, significant increases were also observed in reflective learning scores over time from 12 months post-workshop attendance, suggesting that such behaviours can take time to develop. Level (or depth) of written reflection however did not statistically change over time, but when explored at the individual level this could have been due to the chosen content of the reflection. Participants also reported both positive and negative experiences regarding the facilitation of their RP beyond the attended workshop, which has implications for RP engagement. The thesis concludes with some recommendations for how to improve the existing approaches for RP facilitation and suggestions for future research.
Biomaterial-engineered intra-articular drug delivery systems for osteoarthritis therapy
Creators: name: Kou, Longfa
name: Xiao, Shuyi
name: Sun, Rui
name: Bao, Shihui
name: Yao, Qing
name: Chen, Ruijie
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified

description: Osteoarthritis (OA) is a progressive and degenerative disease, which is no longer confined to the elderly. So far, current treatments are limited to symptom relief, and no valid OA disease-modifying drugs are available. Additionally, OA relative joint is challenging for drug delivery, since the drugs experience rapid clearance in joint, showing a poor bioavailability. Existing therapeutic drugs, like non-steroidal anti-inflammatory drugs (NSAIDs) and corticosteroids, are not conducive for long-term use due to adverse effects. Though supplementations, including chondroitin sulfate and glucosamine, have shown beneficial effects on joint tissues in OA, their therapeutic use is still debatable. New emerging agents, like Kartogenin (KGN) and Interleukin-1 receptor antagonist (IL-1 ra), without a proper formulation, still will not work. Therefore, it is urgent to establish a suitable and efficient drug delivery system for OA therapy. In this review, we pay attention to various types of drug delivery systems and potential therapeutic drugs that may escalate OA treatments.
A comprehensive insight on the biological potential of embelin and its derivatives
Creators: name: Basha, N. Jeelan
name: Basavarajaiah, S. M.
name: Baskaran, Swathi
name: Kumar, Prasanna
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Science Policy
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer

description: Naturally occurring bioactive molecules are known for their diverse biological applications such as antimicrobial, anticancer, anti-inflammatory, and analgesic activities. Also, some of the natural products act as medicinal drugs. Further, bioactive cell-permeable molecule embelin has been reported for its diverse biological activities such as antimalarial, anticancer, and anti-inflammatory in the literature. With the continuation of our research work on biologically active molecules, based on structural activity relationship and docking studies of embelin and its derivatives, we have reported target-specific anticancer and antimalarial activities of embelin and its analogs. Also, it has been reported in many recent research articles that embelin and its derivatives are known to possess medicinal properties. This review mainly highlights recent reports on broad-spectrum biological activities of the embelin and its analogs to date.
Effective dynamics of cold atoms flowing in two ring shaped optical potentials with tunable tunneling
Creators: name: Aghamalyan, Davit
name: Amico, Luigi
name: Kwek, L. C
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the current dynamics of coupled atomic condensates flowing in two ring-shaped optical potentials. We provide a specific setup where the ring-ring coupling can be tuned in experimentally feasible way. It is demonstrated that the imaginary time effective action of the system in a weak coupling regime provides a two-level-system-dynamics for the phase slip across the two rings. Through two-mode Gross- Pitaevskii mean field equations, the real time dynamics of the population imbalance and the phase difference between of the two condensates is thoroughly analyzed analytically, as function of the relevant physical parameters of the system. In particular, we find that the macroscopic quantum self trapping phenomenon is induced in the system if the flowing currents assume a non vanishing difference.
description: 11 pages,8 figures
A Curie-Weiss Theory of the Continuum Widom-Rowlinson Model
Creators: name: Kozitsky, Yuri
name: Kozlovskii, Mikhailo
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: A version of the continuum Widom-Rowlinson model is introduced and studied. It is a two-component gas of point particles placed in $\mathbf{R}^d$ in which like particles do not interact and unlike particles contained in a given vessel of volume $V$ repel each other with intensity $a/V$. This model is thermodynamically equivalent to a one-component gas with multi-particle interaction. For both models, a rigorous theory of a phase transition is presented and the ways of its construction in the framework of the grand canonical formalism are outlined.
description: 1 figure. arXiv admin note: substantial text overlap with arXiv:1801.01428
Interactive Feature Induction and Logistic Regression for Whole Sentence Exponential Language
Creators: name: Rosenfeld, Roni
name: Wasserman, Larry
name: Cai, Can
name: Xiaojin  Zhu
Publisher: name: Carnegie Mellon University
Year: 2006
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Whole sentence exponential language models directly model the probability of an entire sentence using arbitrary computable properties of that sentence. We present an interactive methodology for feature induction, and demonstrate it in the simple but common case of a trigram baseline, focusing on features that capture the linguistic notion of semantic coherence. We then show how parametric regression can be used in this setup to efficiently estimate the model's parameters, whereas non-parametric regression can be used to construct more powerful exponential models from the raw features.
Dynamics of magnetic flux tubes and IR-variability of Young Stellar Objects
Creators: name: Khaibrakhmanov, Sergey A.
name: Dudorov, Alexander E.
name: Sobolev, Andrey M.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We simulate the dynamics of slender magnetic flux tubes (MFTs) in the accretion disks of T Tauri stars. The dynamical equations of our model take into account the aerodynamic and turbulent drag forces, and the radiative heat exchange between the MFT and ambient gas. The structure of the disk is calculated with the help of our MHD model of the accretion disks. We consider the MFTs formed at the distances $0.027-0.8$ au from the star with various initial radii and plasma betas $β_0$. The simulations show that the MFT with weak magnetic field ($β_0=10$) rise slowly with speeds less than the sound speed. The MFTs with $β_0=1$ form outflowing magnetized corona of the disk. Strongly magnetized MFTs ($β_0=0.1$) can cause the outflows with velocities $20-50$ km s$^{-1}$. The tubes rise periodically over times from several days to several months according to our simulations. We propose that periodically rising MFTs can absorb stellar radiation and contribute to the IR-variability of Young Stellar Objects.
description: accepted for publication in RAA
Hyperbolic dimension of Julia sets of meromorphic maps with logarithmic tracts
Creators: name: Barański, Krzysztof
name: Karpińska, Bogusława
name: Zdunik, Anna
Publisher: name: arXiv
Year: 2007
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37F10, 37F35, 30D40, 28A80

description: We prove that for meromorphic maps with logarithmic tracts (e.g. entire or meromorphic maps with a finite number of poles from class $\mathcal B$), the Julia set contains a compact invariant hyperbolic Cantor set of Hausdorff dimension greater than 1. Hence, the hyperbolic dimension of the Julia set is greater than 1.
description: 7 pages, 1 figure
title: Coinage
title: Coinage
titleType: AlternativeTitle
title: Coin
titleType: AlternativeTitle
title: Money
titleType: AlternativeTitle
title: Mint
titleType: AlternativeTitle
title: Currency
titleType: AlternativeTitle
title: Specie
titleType: AlternativeTitle
Creators: name: Huth, Martin
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2024
Subjects: Mleiha
Silver
Copper
Economy
Coinage
Arabia
Pre-Islamic period
Monetization
Trade
Midian
Lihyan
Qataban
Sabaʾ
Himyar
Hadramawt
Qaryat al-Faw

description: Huth, Martin, 2023. "Coinage". Thematic Dictionary of Ancient Arabia. Online edition 2023.
description: Source: https://doi.org/10.60667/tdaa-0030
description: Huth, Martin, 2023. "Coinage". Thematic Dictionary of Ancient Arabia. Online edition 2023.
The Structure of Martian Magnetosphere at the Dayside Terminator Region as Observed on MAVEN Spacecraft
Creators: name: Vaisberg, O. L.
name: Ermakov, V. N.
name: Shuvalov, S. D.
name: Zelenyi, L. M.
name: Halekas, J.
name: DiBraccio, G. A.
name: McFadden, J.
name: Dubinin, E. M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: We analyzed 44 passes of the MAVEN spacecraft through the magnetosphere, arranged by the angle between electric field vector and the projection of spacecraft position radius vector in the YZ plane in MSE coordinate system ($θ$ E ). All passes were divided into 3 angular sectors near 0°, 90° and 180° $θ$ E angles in order to estimate the role of IMF direction in plasma and magnetic properties of dayside Martian magnetosphere. The time interval chosen was from January 17 through February 4, 2016 when MAVEN was crossing the dayside magnetosphere at SZA ~ 70°. Magnetosphere as the region with prevailing energetic planetary ions is always found between the magnetosheath and the ionosphere. 3 angular sectors of dayside interaction region in MSE coordinate system with different orientation of the solar wind electric field vector E = -1/c V x B showed that for each sector one can find specific profiles of the magnetosheath, the magnetic barrier and the magnetosphere. Plume ions originate in the northern MSE sector where motion electric field is directed from the planet. This electric field ejects magnetospheric ions leading to dilution of magnetospheric heavy ions population, and this effect is seen in some magnetospheric profiles. Magnetic barrier forms in front of the magnetosphere, and relative magnetic field magnitudes in these two domains vary. The average height of the boundary with ionosphere is ~530 km and the average height of the magnetopause is ~730 km. We discuss the implications of the observed magnetosphere structure to the planetary ions loss mechanism.
description: 24 pages, 13 figures
SYL3C aptamer-anchored microemulsion co-loading β-elemene and PTX enhances the treatment of colorectal cancer
Creators: name: Zhou, Xiaorong
name: Cao, Chuanpei
name: Li, Nan
name: Yuan, Shaofei
Publisher: name: Taylor & Francis
Year: 2019
Subjects: Biochemistry
Cell Biology
Pharmacology
Biotechnology
Chemical Sciences not elsewhere classified
Cancer

description: The aim of this study is to construct a SYL3C aptamer-anchored microemulsion based on β-elemene and PTX (SYL3C/EP-MEs) for enhancement on colorectal cancer therapy. Such microemulsion is consist of encapsulated drugs (β-elemene and PTX), tumor targeting ligand (3’-end thiolated SYL3C aptamer), thiol conjugated site (maleimide-modified PEGylated 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine, mal-DOPE-PEG), pH-sensitive component (DOPE) and other necessary excipients. SYL3C/EP-MEs showed a spherical particle with an average particle size around 30 nm and a high encapsulation efficiency (>80%) for both drugs. β-elemene and PTX could be released controllably from SYL3C/EP-MEs as pH values changed. SYL3C/EP-MEs displayed a selective affinity to HT-29 cells, leading to an obvious increase in cellular uptake, cell apoptosis and cytotoxicity. In the HT-29 tumor xenograft-bearing nude mice model studies, SYL3C/EP-MEs showed an overwhelming tumor growth inhibition, the longest survival time and the lowest systemic toxicity among all the treatments. The potential mechanism of enhanced anti-cancer ability was probably associated with the induction of M1 macrophage polarization, the downregulation of mutant p53 protein and the reduction of bcl-2 protein expression. Collectively, the microemulsion codelivery of β-elemene and PTX using functionalization with SYL3C aptamer provides a novel approach for combinational colorectal cancer-targeted treatment.
title: Fluorescent nanosensors for the monitoring of different intracellular reactive oxygen species (ROS)
Creators: name: Ratier, A
Publisher: name: Liverpool John Moores University
Year: 2021

description: Reactive oxygen species (ROS) play important roles for the regulation of normal functions such as proliferation, differentiation, migration and cell death. At low doses they participate in the redox balance, but an excess of these species leads to damage to proteins, lipids or DNA. ROS are involved in the onset and progression of several degenerative diseases (e.g., cancer, neurological disorder, etc). Cancer cells are highly susceptible to ROS-mediated damage and several chemotherapy agents achieve cytotoxicity by inducing oxidative stress. Sensing the variations of different intracellular ROS is crucial for real time assessments of anticancer treatment efficiency. Yet, no sensor currently allows simultaneous and independent monitoring of different ROS live cells. Indeed, existing sensors monitor either the total levels of ROS or the levels of single species (i.e., sensors such as diphenylanthracene, peroxy yellow, anthrafluorescein, etc.). The need to optimise and personalise treatment regimens and for unravelling the mechanisms underpinning ROS-induced cell death requires the introduction of a new set of tools able to provide a real-time report of intracellular ROS levels in response to a given intervention. In this project we developed new fluorescent nanosensors able to respond to different ROS. This was achieved through the synthesis of three conjugatable molecular probes able to respond to individual ROS, namely; an anthrafluorescein-based probe for superoxide anion, a dimethylanthracene-based probe for singlet oxygen and a fluorescein-based probe for hydrogen peroxide. The new probes were grafted onto poly(lactic-co-glycolic acid) (PLGA) and formulated as nanoparticles containing either conjugated or encapsulated sensors. We characterised the fluorescent response of the probes, conjugates and nanospecies in the presence of the target ROS analytes. Lastly, we demonstrated the ability of the nanosensors to enter cells and their potential of to be used as intracellular ROS sensors.
Search for a heavy dark photon at future $e^+e^-$ colliders
Creators: name: He, Min
name: He, Xiao-Gang
name: Huang, Cheng-Kai
name: Li, Gang
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A coupling of a dark photon $A'$ from a $U(1)_{A'}$ with the standard model (SM) particles can be generated through kinetic mixing represented by a parameter $ε$. A non-zero $ε$ also induces a mixing between $A'$ and $Z$ if dark photon mass $m_{A'}$ is not zero. This mixing can be large when $m_{A'}$ is close to $m_Z$ even if the parameter $ε$ is small. Many efforts have been made to constrain the parameter $ε$ for a low dark photon mass $m_{A'}$ compared with the $Z$ boson mass $m_Z$. We study the search for dark photon in $e^+e^- \to γA' \to γμ^+ μ^-$ for a dark photon mass $m_{A'}$ as large as kinematically allowed at future $e^+e^-$ colliders. For large $m_{A'}$, care should be taken to properly treat possible large mixing between $A'$ and $Z$. We obtain sensitivities to the parameter $ε$ for a wide range of dark photon mass at planed $e^+\;e^-$ colliders, such as Circular Electron Positron Collider (CEPC), International Linear Collider (ILC) and Future Circular Collider (FCC-ee). For the dark photon mass $20~\text{GeV}\lesssim m_{A^{\prime}}\lesssim 330~\text{GeV}$, the $2σ$ exclusion limits on the mixing parameter are $ε\lesssim 10^{-3}-10^{-2}$. The CEPC with $\sqrt{s}=240~\text{GeV}$ and FCC-ee with $\sqrt{s}=160~\text{GeV}$ are more sensitive than the constraint from current LHCb measurement once the dark photon mass $m_{A^{\prime}}\gtrsim 50~\text{GeV}$. For $m_{A^{\prime}}\gtrsim 220~\text{GeV}$, the sensitivity at the FCC-ee with $\sqrt{s}=350~\text{GeV}$ and $1.5~\text{ab}^{-1}$ is better than that at the 13~TeV LHC with $300~\text{fb}^{-1}$, while the sensitivity at the CEPC with $\sqrt{s}=240~\text{GeV}$ and $5~\text{ab}^{-1}$ can be even better than that at 13~TeV LHC with $3~\text{ab}^{-1}$ for $m_{A^{\prime}}\gtrsim 180~\text{GeV}$.
description: 21 pages, 5 figures, 2 tables
Unusual mechanism of vortex viscosity generated by mixed normal modes in superconductors with broken time reversal symmetry
Creators: name: Silaev, Mihail
name: Babaev, Egor
Publisher: name: arXiv
Year: 2013
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We show that under certain conditions multiband superconductors with broken time-reversal symmetry have a new vortex viscosity-generating mechanism which is different from that in conventional superconductors. It appears due to the existence of mixed superfluid phase-density mode inside vortex core. This new contribution is dominant near the time reversal symmetry breaking phase transition. The results could be relevant for three band superconductor $Ba_{1-x}K_{x}Fe_2As_2$.
description: 7 pages, 2 figures
Interactive dynamics
Creators: name: Witkin, Andrew Paul.
name: Gleicher, Michael
name: Welch, William
Publisher: name: Carnegie Mellon University
Year: 1994
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Abstract: "Our goal is to use physical simulation as an interactive medium for building and manipulating a wide range of models. A key to achieving this goal is the ability to create complex physical models dynamically by snapping simple pieces together, integrating the process of model creation into the ongoing simulation. We present a mathematical and computational formulation for constrained dynamics that makes this possible, allowing encapsulated objects, constraints, and forces to be combined dynamically and simulated efficiently. The formulation handles arbitrary objects, including nonrigid bodies. We describe an implementation for interactive dynamics, and discuss applications to mechanism construction, geometric modeling, interactive optimization data fitting, and animation."
Remarks on Congruence of 3-manifolds
Creators: name: Gilmer, Patrick M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M27

description: We give two proofs that the 3-torus is not weakly d-congruent to the connected sum of three S^1xS^2's, if d>2. We study how cohomology ring structure relates to weak congruence. We give an example of three 3--manifolds which are weakly 5-congruent but are not 5-congruent.
description: 4 pages, to appear in JKTR
Purcell Effect in the Stimulated and Spontaneous Emission Rates of Nanoscale Semiconductor Lasers
Creators: name: Romeira, Bruno
name: Fiore, Andrea
Publisher: name: arXiv
Year: 2018
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Nanoscale semiconductor lasers have been developed recently using either metal, metallo-dielectric or photonic crystal nanocavities. While the technology of nanolasers is steadily being deployed, their expected performance for on-chip optical interconnects is still largely unknown due to a limited understanding of some of their key features. Specifically, as the cavity size is reduced with respect to the emission wavelength, the stimulated and the spontaneous emission rates are modified, which is known as the Purcell effect in the context of cavity quantum electrodynamics. This effect is expected to have a major impact in the 'threshold-less' behavior of nanolasers and in their modulation speed, but its role is poorly understood in practical laser structures, characterized by significant homogeneous and inhomogeneous broadening and by a complex spatial distribution of the active material and cavity field. In this work, we investigate the role of Purcell effect in the stimulated and spontaneous emission rates of semiconductor lasers taking into account the carriers' spatial distribution in the volume of the active region over a wide range of cavity dimensions and emitter/cavity linewidths, enabling the detailed modeling of the static and dynamic characteristics of either micro- or nano-scale lasers using single-mode rate-equations analysis. The ultimate limits of scaling down these nanoscale light sources in terms of Purcell enhancement and modulation speed are also discussed showing that the ultrafast modulation properties predicted in nanolasers are a direct consequence of the enhancement of the stimulated emission rate via reduction of the mode volume.
description: 12 pages, 5 figures
title: 03_0365
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
New Systems Showing the Light-Time Effect
Creators: name: Zasche, P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Two Algol-type eclipsing binary systems (EW Lyr and IV Cas) have been investigated for period changes. Our study was primarily focused on the light-time effect with an alternative explanation by magnetic activity cycles. In the case of EW Lyr we have found a third body in the orbit with a period of about 78 years, an amplitude A=0.052 days and orbital eccentricity e=0.57. For IV Cas the long period is 58 years, amplitude A=0.034 days and zero eccentricity. With these results we are also able to calculate mass functions and minimal masses of these components.
description: 4 pages, 2 figures, 2 tables, conference proceedings
Interactive Computation in an Open World
Creators: name: Muller, Stefan K.
name: Acar, Umut A.
name: Duff, William
name: Harper, Robert
Publisher: name: Carnegie Mellon University
Year: 2007
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Interactive applications must operate correctly and efficiently while reacting to events in an unpredictable external world. Currently, most such programs are written in an event-driven style that can often be difficult to understand and maintain because callbacks defeat modularity and often share global state. Elliott and Hudak proposed Functional Reactive Programmng (FRP), which tames this complexity by representing interactive values as functions of time. Although FRP has an elegant denotational semantics, its realizations limit the sampling of external events and signals to avoid time and space leaks. In this paper, we propose an approach to reactive programming that avoids memoization, the cause of many space leaks, but provides a flexible programming interface. We propose a single language abstraction, called a factor, for sampling interactive values. The absence of state ensures that space leaks are impossible, but raises the question of what it would mean to query the same factor twice. Such queries are ruled out using an affine type system that ensures that each factor may be queried at most once, providing both an output and another factor admitting further interaction. The dynamics of the language is specified in terms of Brouwer’s concept of free choice sequences, which model the unpredictability of the external world with which a program interacts. An affine notion of logical relations, derived from Ahmed, Fluet, and Morrisett’s account of state, supports the derivation of equations characterizing the behavior of interactive programs under the assumption of an unpredictable world. The practicality of factors as a programming device is illustrated through the use of a factor library written in OCaml to build a number of applications, including a multiplayer game and a Unix-like shell.
Resonant-state expansion for open optical systems: Generalization to magnetic, chiral, and bi-anisotropic materials
Creators: name: Muljarov, E. A.
name: Weiss, T.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The resonant-state expansion, a recently developed powerful method in electrodynamics, is generalized here for open optical systems containing magnetic, chiral, or bi-anisotropic materials. It is shown that the key matrix eigenvalue equation of the method remains the same, but the matrix elements of the perturbation now contain variations of the permittivity, permeability, and bi-anisotropy tensors. A general normalization of resonant states in terms of the electric and magnetic fields is presented.
description: 4 pages
Characterizing the DNA damage response in fibrosarcoma stem cells by in-situ cell tracking
Creators: name: Fu, Qibin
name: Wang, Jing
name: Huang, Tuchen
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: Physical Sciences not elsewhere classified
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer

description: Purpose: Radiotherapy works by generating large amounts of DNA double-strand breaks (DSBs). Cancer stem-like cells (CSCs) are the principal cause of tumor radioresistance. Therefore, investigating the dynamics and mechanisms of DNA damage response (DDR) in CSCs is of great importance. Materials and methods: Human fibrosarcoma cell line HT1080 stably transfected with 53BP1-GFP was used to investigate the real-time cellular response to DSBs induced by γ-rays. HT1080 CSCs were sorted based on aldehyde dehydrogenase (ALDH1) levels by flow cytometry and verified by mammosphere formation assay. We set the number, area and intensity of ionizing radiation-induced foci (IRIF) as endpoints. Using live-cell imaging to track single IRIF in-situ, we compared the IRIF induction and dispersal in HT1080 cells and CSCs. Results: ALDH1+ cells showed much stronger mammosphere-forming capability, indicating the property of CSCs and could be considered as HT1080 CSCs. After γ-irradiation, CSCs had fewer IRIF number and smaller IRIF size than HT1080 cells. Different repair kinetics (with plateau and without plateau) were observed both in CSCs and HT1080 cells. Similar to HT1080 cells, IRIF with a plateau in CSCs showed higher intensity, larger area and slower decay rate of intensity than IRIF without plateau. Additionally, the level of IRIF merging in HT1080 cells was significantly higher than that in CSCs. Conclusions: CSCs have fewer and smaller IRIF, indicating the reduced complexity of DNA damage. This may contribute to tumor radioresistance. Heterogeneous repair kinetics (with and without plateau) were observed although the dynamics of IRIF with or without plateau in CSCs resemble the dynamics in HT1080 cells based on single IRIF analysis.
Discrete random walks on the group Sol
Creators: name: Brieussel, Jérémie
name: Tanaka, Ryokichi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Probability (math.PR)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 60G50, 22E25, 43A80, 22E40

description: The harmonic measure $ν$ on the boundary of the group $Sol$ associated to a discrete random walk of law $μ$ was described by Kaimanovich. We investigate when it is absolutely continuous or singular with respect to Lebesgue measure. By ratio entropy over speed, we show that any countable non-abelian subgroup admits a finite first moment non-degenerate $μ$ with singular harmonic measure $ν$. On the other hand, we prove that some random walks with finitely supported step distribution admit a regular harmonic measure. Finally, we construct some exceptional random walks with arbitrarily small speed but singular harmonic measures. The two later results are obtained by comparison with Bernoulli convolutions, using results of Erdös and Solomyak.
D7.1 Initial plan and report on dissemination, standardisation and exploitation
Creators: name: DEDICAT 6G Consortium
Publisher: name: Zenodo
Year: 2021

description: The Deliverable D7.1 describes an initial plan for the dissemination and standardization bodies actions to be pursued by the DEDICAT 6G consortium partners. The tools and approaches used to accelerate the project’s impact are also described. The dissemination activities, both already running and planned, are described, details are provided on the target audience, on the devised communication strategy, on the overall dissemination targets, and finally also on the means used to achieve those set targets. Relations with other research projects as well as with the 5G PPP Working Groups are also described. Standardization bodies in the focus of the project activities are listed, together with the main partners that plan to impact those, as well as the expected contributions.
Uniformizing Tropical Curves I: Genus Zero and One
Creators: name: Speyer, David E
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: In tropical geometry, given a curve in a toric variety, one defines a corresponding graph embedded in Euclidean space. We study the problem of reversing this process for curves of genus zero and one. Our methods focus on describing curves by parameterizations, not by their defining equations; we give parameterizations by rational functions in the genus zero case and by non-archimedean elliptic functions in the genus one case. For genus zero curves, those graphs which can be lifted can be characterized in a completely combinatorial manner. For genus one curves, show that certain conditions identified by Mikhalkin are sufficient and we also identify a new necessary condition.
Carnet nº 4, commencé à Novorossiïsk (p. 92)
Creators: name: Péraire, Lucien
name: CNRS
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2023

description: created: 30-6-1929
Characterizing the DNA Damage Response in Fibrosarcoma Stem Cells by in-situ Cell Tracking
Creators: name: Fu, Qibin
name: Wang, Jing
name: Huang, Tuchen
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biophysics
subject: Biochemistry
subject: Physical Sciences not elsewhere classified
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer

description: Purpose: Radiotherapy works by generating large amounts of DNA double-strand breaks (DSBs). Cancer stem-like cells (CSCs) are the principal cause of tumor radioresistance. Therefore, investigating the dynamics and mechanisms of DNA damage response in CSCs is of great importance. Materials and methods: Human fibrosarcoma cell line HT1080 stably transfected with 53BP1-GFP was used to investigate the real-time cellular response to DSBs induced by γ-rays. HT1080 CSCs were sorted based on aldehyde dehydrogenase (ALDH1) levels by flow cytometry and verified by mammosphere formation assay. We set the number, area and intensity of ionizing radiation induced-foci (IRIF) as endpoints. Using live-cell imaging to track single IRIF in-situ, we compared the IRIF induction and dispersal in HT1080 cells and CSCs. Results: ALDH1+ cells showed much stronger mammosphere-forming capability, indicating the property of CSCs and could be considered as HT1080 CSCs. After γ-irradiation, CSCs had fewer IRIF number and smaller IRIF size than HT1080 cells. Different repair kinetics (with plateau and without plateau) were observed both in CSCs and HT1080 cells. Similar to HT1080 cells, IRIF with a plateau in CSCs showed higher intensity, larger area and slower decay rate of intensity than IRIF without plateau. Additionally, the level of IRIF merging in HT1080 cells was significantly higher than that in CSCs. Conclusions: CSCs have fewer and smaller IRIF, indicating the reduced complexity of DNA damage. This may contribute to tumor radioresistance. Heterogeneous repair kinetics (with and without plateau) were observed although the dynamics of IRIF with or without plateau in CSCs resemble the dynamics in HT1080 cells based on single IRIF analysis.