cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Designing proteasome adaptors to deplete specific proteins from cells
Creators: name: Bowen, Kimberly Elizabeth
Publisher: name: The University of Texas at Austin
Year: 2019
Subjects: Proteasome
Degradation
Shp2
Abl

description: Cellular protein levels are governed by their rates of synthesis and degradation, and both processes are intricately regulated. One way to study the role of a protein in the cell is to artificially deplete it and observe the effects. The most common methodology for depleting proteins inhibits expression of the target through RNA interference. However, this technique acts at the protein synthesis level and cannot be used to study long-lived proteins or post-translational modifications. Thus, a complementary approach that acts on the proteins themselves would be useful. One method is to target a protein to the cell’s degradation machinery, the Ubiquitin Proteasome System (UPS). Proteins are targeted to the proteasome by the covalent attachment of ubiquitin molecules, which are recognized by the proteasome. The substrate is then translocated into the proteasome’s proteolytic core and degraded into short peptides, while the ubiquitin molecules are cleaved off and recycled. Recently, methods have been developed to deplete proteins by inducing their ubiquitination, which accelerates their degradation by the proteasome. Ubiquitin is a signaling molecule for numerous cellular pathways other than proteolysis, however, and inducing ubiquitination does not always lead to degradation. Therefore, I have developed a system to degrade specific proteins in cells using chimeric adaptors that shuttle proteins directly to the proteasome without the need for ubiquitination. I have shown that this system can be successfully applied to several proteins in vitro and that the adaptors can induce degradation of model and endogenous proteins in cells.
title: Recenzja: "Czesław Miłosz und die Geschichtlichkeit der Kultur" / Matthias Freise. Tübingen: Narr Verlag, 2014. ISBN: 978-3-8233-6670-6
Creators: name: Zemła, Małgorzata
name: Digitale Wissenschaftsplattform Pol-Int (Www.Pol-Int.Org)
Publisher: name: Europa-Universität Viadrina Frankfurt
Year: 2021

description: Książki takie jak ta zdarzają się rzadko, a w dziedzinie niemieckojęzycznej polonistyki monografia Matthiasa Freisego „Czesław Miłosz und die Geschichtlichkeit der Kultur" jest już raczej wyjątkiem. Rzadkością są dzisiaj w ogóle prace poświęcone jednemu autorowi; w tym wypadku mamy jednak dodatkowo do czynienia z monografią jednego z najwybitniejszych poetów XX wieku, który w Niemczech jest tyleż uznany, co zapoznany. Jak pisze Freise, poezja Miłosza wydaje się niemieckiemu czytelnikowi „zbyt metafizyczna" i „zbyt dziejowa w czasach, które same uważają się za posthistoryczne" (s. 9). A jednak, jak twierdzi autor, Miłosz jako poeta „pytań wypartych" staje się również w Niemczech coraz bardziej aktualny, a monografia niemieckiego uczonego niewątpliwie przyczynia się do nowej i pogłębionej recepcji jego dzieła w niemieckim obszarze językowym.
Comparação entre a cobertura vegetal e a temperatura de superfície terrestre, em Lauro de Freitas na Bahia
Creators: name: Fábia Antunes Zaloti
name: and others
Publisher: name: Zenodo
Year: 2023

description: R E S U M OO presente artigo apresenta o estudo da análise entre a vegetação e a estimativa de temperatura de superfície terrestre, no município de Lauro de Freitas na Bahia, entre 1984 e 2018 com imagens dos satélites Landsat 5 e 8, a partir do sensoriamento remoto, com técnicas de processamento digital de imagens. A pesquisa ilustrou que a vegetação, a partir do índice de vegetação por diferença normalizada, passou por uma redução de 32%, e as áreas sem vegetação tiveram um aumento de 91%, ao longo dos 34 anos analisados, e que alguns bairros se destacaram, Itinga, Portão, Vida Nova e Vilas do Atlântico, principalmente pelo acréscimo nas temperaturas mínimas e máximas. Itinga e Portão apresentaram maiores ampliações nas temperaturas mínimas de 5ºC e 4ºC, respectivamente, e nas temperaturas máximas com 6ºC nos dois bairros. A análise entre a diminuição da cobertura vegetal e alterações das temperaturas de superfície terrestre comprovaram que o adensamento urbano relacionado com o aumento de áreas construídas e edificadas resulta na substituição da vegetação por material asfáltico e ampliação no fluxo de veículos, fatores que geram retenção de calor.Palavras-Chaves: índice de vegetação por diferença normalizada, temperatura de superfície terrestre, sensoriamento remoto.
Middle ear resonant frequency values in geriatric subjects : a multifrequency tympanometric study
Creators: name: Leblond, Catherine Louise
Publisher: name: University of British Columbia
Year: 2010

description: Based on anatomical changes known to occur in the middle ear with aging, the purpose of this study was to compare middle ear resonant frequency values of geriatric subjects to those of young adults. Measurements were obtained with two different methods: sweep frequency tympanometry and discrete multifrequency tympanometry. Results from the two methods of measurement were also compared. Furthermore, intra-subject, inter-judge, and longitudinal reliability were examined for each measurement method. Results showed no significant difference between the two age groups. However, resonant frequency values obtained with the two measurement methods differed significantly (p < 0.05). Intra-subject and longitudinal reliability measures were significantly higher for the discrete multifrequency method than for the sweep frequency method. Inter-judge reliability was 95% for both measurement methods. We therefore concluded that age does not have a significant effect on middle ear resonant frequency values. It follows that normative resonant frequency data can be applied to adults of all age groups. Furthermore, the method used to measure resonant frequency has a significant effect on the values obtained, and comparisons of resonant frequency data should not be made across measurement methods. Although we were unable to determine which measurement method is most valid, the discrete multifrequency method is more reliable within subjects and over time.
Parshin Residues via Coboundary Operators
Creators: name: Mazin, Mikhail
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Geometry (math.AG)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 32S60, 32C18, 32A27

description: The article consist of two main parts: an analog of the Leray Theory for Singular Varieties and its application to the Theory of Parshin's Residues. The first part is independent from the second. It uses the theory of Whitney stratifications. The second part is an application of the first. In particular, a geometric and very transparent proof of the Parshin's Reciprocity Law for residues is given.
description: 18 pages; 5 figures; Title changed; Presentation significantly changed; All the proofs filled in
Política de educação profissional no Brasil: expansão da oferta
Creators: name: Cardoso, Diele dos Santos
name: Mota Júnior, Antônio de Macêdo
Publisher: name: figshare
Year: 2021
Subjects: subject: 160506 Education Policy
subject: FOS: Political science

description: O presente trabalho aborda o tema políticas públicas com foco na educação profissional no Brasil. Este estudo exploratório, bibliográfico e documental objetiva caracterizar o surgimento das primeiras escolas de ensino técnico e profissional no país, bem como a expansão de sua oferta. Os resultados evidenciam uma inserção histórica do ensino voltado para o trabalho que data da época do Brasil Colônia e sua institucionalização a partir do Brasil República. Demonstram que, nos últimos anos, houve uma significativa expansão da oferta, propiciada, principalmente, pela Rede Federal, com a implantação de diversos Institutos Federais de Educação, Ciência e Tecnologia (IFs) de forma interiorizada. Esta política educacional tem possibilitado a ampliação da democratização do ensino e a promoção do desenvolvimento local e regional.
Verification of Dissipativity and Evaluation of Storage Function in Economic Nonlinear MPC using Q-Learning
Creators: name: Kordabad, Arash Bahari
name: Gros, Sebastien
Publisher: name: arXiv
Year: 2021
Subjects: subject: Systems and Control (eess.SY)
subject: Optimization and Control (math.OC)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics

description: In the Economic Nonlinear Model Predictive (ENMPC) context, closed-loop stability relates to the existence of a storage function satisfying a dissipation inequality. Finding the storage function is in general -- for nonlinear dynamics and cost -- challenging, and has attracted attentions recently. Q-Learning is a well-known Reinforcement Learning (RL) techniques that attempts to capture action-value functions based on the state-input transitions and stage cost of the system. In this paper, we present the use of the Q-Learning approach to obtain the storage function and verify the dissipativity for discrete-time systems subject to state-input constraints. We show that undiscounted Q-learning is able to capture the storage function for dissipative problems when the parameterization is rich enough. The efficiency of the proposed method will be illustrated in the different case studies.
description: This paper has been accepted to be presented NMPC2021. 6 pages
Pilots’ mental workload variation when taking a risk in a flight scenario: a study based on flight simulator experiments
Creators: name: Wang, Lei
name: Gao, Shan
name: Tan, Wei
name: Zhang, Jingyi
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified

description: Pilots’ operation behavior in flight is associated with their mental state variables such as workload, situation awareness, stress, etc. The objective of this study was to investigate the dynamic process of mental workload for pilots who perform a risky flight task in simulated scenarios. Two empirical experiments were conducted to address this issue. In experiment one, 19 trainee pilots divided into high-risk and low-risk groups performed a target-search task in a low-altitude visual flight. The results showed a statistically significant interaction between groups and segments for heart rate variability (HRV). The same pattern of physiological results was replicated among participants in experiment two, in which 19 airline pilots completed an approach with low visibility. These findings highlighted the relationship between mental workload variation and risk-taking behavior, which could be considered in improving pilot selection and training to improve flight safety.
Strong lensing statistics in large, z~<0.2 surveys: bias in the lens galaxy population
Creators: name: Moeller, Ole
name: Kitzbichler, Manfred
name: Natarajan, Priyamvada
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We calculate the expected lensing statistics of the galaxy population in large, low-redshift surveys. Galaxies are modeled using realistic, multiple components: a dark matter halo, a bulge component and disc. We use semi-analytic models of galaxies coupled with dark matter haloes in the Millennium Run to model the lens galaxy population. We predict that a fraction of 1.4+/-0.18*10^-3 of radio sources will be lensed by galaxies within a survey like the 2dF below z<0.2. With a simulated sample of lensed radio sources, the predicted lensing galaxy population consists mainly of ellipticals (~80%) with an average lens velocity dispersion of 164+/-3 km/s, producing typical image separations of ~3 arcsec. The lens galaxy population lies on the fundamental plane but its velocity dispersion distribution is shifted to higher values compared to all early-type galaxies. Taking magnification bias into account, we predict that the ratio of 4:2 image systems is 30+/-5%, consistent with the observed ratio found in the Cosmic Lens All-Sky Survey. We also find that the population of 4-image lens galaxies is distinguishable from the population of lens galaxies in 2-image systems. Our key result is the explicit demonstration that the population of lens galaxies differs markedly from the galaxy population as a whole: lens galaxies have a higher average luminosity and reside in more massive haloes than the overall sample of ellipticals. This bias restricts our ability to infer galaxy evolution parameters from a sample of lensing galaxies. (abridged)
description: 13 pages, 13 figures, submitted to MNRAS. Removed double figure and added correct figure 9
Identificação de depressões fechadas em ambiente cárstico a partir de diferentes Modelos Digitais de Elevação (MDE)
Creators: name: Natasha Bernardes Sales
name: and others
Publisher: name: Zenodo
Year: 2023

description: R E S U M OModelos digitais de elevação (MDE) obtidos de diferentes sistemas sensores têm sido amplamente estudados nos últimos anos, especialmente no que diz respeito a avaliação de suas consistências hidrológicas, visando avaliar a continuidade do escoamento superficial. Essa pesquisa tem como objetivo comparar diferentes modelos na identificação de depressões fechadas classificam corretamente as dolinas em ambientes cársticos. Utilizou-se o método semiautomático de identificação de dolinas, com base em parâmetros morfomêtricos, em ambiente SIG, para identificação de feições deprimidas na região cárstica Noroeste do Grupo Bambuí, em Goiás. O software utilizado foi ArcMap 10.3. Após a preparação do modelo digital de elevação (projeção, recorte e mosaico), foi utilizada a ferramenta Fill para preenchimento de depressões nos modelos, e depois na ferramenta minus, subtraiu-se o MDE original do preenchido e transformado em shapefile para calcular as medidas de área desses polígonos que correspondentes aos modelos digitais de elevação nos fornecem os valores do Índice de Circularidade. Esses procedimentos foram replicados passo a passo para todos os modelos digitais de elevação. Desse modo, escolheu-se duas feições de Dolinas para avaliar o desempenho dos diferentes MDE, a validação dessas Dolinas se deu por meio de outros trabalhos já publicados na mesma área de estudo. Foram calculados os valores médios de área, perímetro e Índice de Circularidade e comparados os valores de área de cada Modelo Digital de Elevação gerados após o processamento. Os modelos AW3D30 NasaDEM e TanDEM-x apresentaram valores satisfatórios na delimitação dessas Dolinas.Palavras-Chaves: Dolinas, MDE, Semiautomática.
Polytope structures for Greenberger-Horne-Zeilinger diagonal states
Creators: name: Han, Kyung Hoon
name: Kye, Seung-Hyeok
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We explore the polytope structures for genuine entanglement, biseparability, full biseparability and Bell inequality of multi-qubit GHZ diagonal states. We first show that biseparable GHZ diagonal states make hypersimplices inside the simplices consisting of all GHZ diagonal states. Next, we consider full biseparability which is equivalent to positive partial transpose for GHZ diagonal states, and show that they make the convex hulls of simplices and cubes. We also visualize which part of the simplex violates multipartite Bell inequality. Finally, we compute precise volumes for genuine entanglement, biseparability, full biseparability and states violating Bell inequality among all GHZ diagonal states.
description: 13 pages, to appear in Journal of Physics A: Mathematical and Theoretical
The gravitational analogue to the hydrogen atom (A summer study at the borders of quantum mechanics and general relativity)
Creators: name: Kober, Martin
name: Koch, Benjamin
name: Bleicher, Marcus
Publisher: name: arXiv
Year: 2007
Subjects: subject: Physics Education (physics.ed-ph)
subject: Popular Physics (physics.pop-ph)
subject: FOS: Physical sciences

description: This article reports on a student summer project performed in 2006 at the University of Frankfurt. It is addressed to undergraduate students familiar with the basic principles of relativistic quantum mechanics and general relativity. The aim of the project was to study the Dirac equation in curved space time. To obtain the general relativistic Dirac equation we use the formulation of gravity as a gauge theory in the first part. After these general considerations we restrict the further discussion to the special case of the Schwarzschild metric. This setting corresponds to the hydrogen atom, with the electromagnetic field replaced by gravity. Although there is a singularity at the event horizon it turns out that a regular solution of the time independent Dirac equation exists. Finally the Dirac equation is solved numerically using suitable boundary conditions.
description: 19 pages, 3 figures
An ADMM-Newton-CNN Numerical Approach to a TV Model for Identifying Discontinuous Diffusion Coefficients in Elliptic Equations: Convex Case with Gradient Observations
Creators: name: Tian, Wenyi
name: Yuan, Xiaoming
name: Yue, Hangrui
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 35R30 49M41 90C25

description: Identifying the discontinuous diffusion coefficient in an elliptic equation with observation data of the gradient of the solution is an important nonlinear and ill-posed inverse problem. Models with total variational (TV) regularization have been widely studied for this problem, while the theoretically required nonsmoothness property of the TV regularization and the hidden convexity of the models are usually sacrificed when numerical schemes are considered in the literature. In this paper, we show that the favorable nonsmoothness and convexity properties can be entirely kept if the well-known alternating direction method of multipliers (ADMM) is applied to the TV-regularized models, hence it is meaningful to consider designing numerical schemes based on the ADMM. Moreover, we show that one of the ADMM subproblems can be well solved by the active-set Newton method along with the Schur complement reduction method, and the other one can be efficiently solved by the deep convolutional neural network (CNN). The resulting ADMM-Newton-CNN approach is demonstrated to be easily implementable and very efficient even for higher-dimensional spaces with fine mesh discretization.
Estimates for the maximal singular integral in terms of the singular integral:the case of even kernels
Creators: name: Mateu, Joan
name: Orobitg, Joan
name: Verdera, Joan
Publisher: name: arXiv
Year: 2007
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 42B20, 42B25

description: The purpose of this paper is to describe the smooth homogeneous Calderon-Zygmund operators for which the maximal singular integral T*f may be controlled by the singular integral Tf. We consider two types of control. The first is the L2 estimate of T*f by Tf, namely the estimate of the L2 norm of T*f by a constant times the L2 norm of Tf. The second is the pointwise estimate of T*f(x) by a constant times M(Tf)(x), where M denotes the Hardy-Littlewood maximal operator. Notice that this is an improved variant of Cotlar's inequality, because the term Mf(x) is missing on the right hand side. Our main result states that, for even operators, both are equivalent to a purely algebraic condition formulated in terms of the expansion of the kernel in spherical harmonics. The condition holds by higher order Riesz transforms, which then satisfy an improved version of Cotlar's inequality
description: Minor misprints and English inaccuracies corrected, references updated. To appear in Annals on Math
Phase based Resource Aware Scheduler with Job Profiling for MapReduce
Creators: name: Sudhakaran, Dhanya
name: Renjith, Shini
Publisher: name: figshare
Year: 2021
Subjects: subject: 80704 Information Retrieval and Web Search
subject: FOS: Media and communications
subject: 80607 Information Engineering and Theory
subject: FOS: Computer and information sciences
subject: 80611 Information Systems Theory

description: MapReduce has become a popular model for data mining computation in these days. MapReduce break down each job into small map tasks and reduce tasks. These tasks are executed in parallel across a large number of machines. This can significantly reduce the running time of data-intensive jobs. The existing schedulers for MapReduce are focusing on scheduling at the task-level and they offer only sub-optimal job performance. This is because tasks can have highly varying resource requirements during their lifetime. These varying requirements make it difficult for task-level schedulers to effectively utilize available resources to reduce job execution time. To address this limitation, a fine-grained, phase and resource-aware MapReduce Scheduler was introduced that divides tasks into phases, where each phase has a constant resource usage profile, and performs scheduling at the phase level. Job profiling is not considered in this scheduler. To meet the need for job profiling, Starfish, a job profiler can be built into the system. Starfish can provide accurate resource information that can be used by the scheduler so that it can take effective scheduling decisions and reduce the job execution time. By using such a job profiler integrated within the scheduler, the performance of the scheduler is effective than the existing task-level schedulers.
Form factors and generalized hydrodynamics for integrable systems
Creators: name: Cubero, Axel Cortés
name: Yoshimura, Takato
name: Spohn, Herbert
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Our review covers microscopic foundations of generalized hydrodynamics (GHD). As one generic approach we develop form factor expansions, for ground states and generalized Gibbs ensembles (GGE). In the latter case the so obtained results are compared with predictions from GHD. One cornerstone of GHD are the GGE averaged microscopic currents, which can also be obtained through employing form factors. Discussed is a second, completely orthogonal approach based on the availability of a self-conserved current.
description: Review article. v1: 39 pages, 2 figures. v2: 50 pages, 2 figures, presentation substantially improved, references added
R-Matrix and Baxter Q-Operators for the Noncompact SL(N,C) Invariant Spin Chain
Creators: name: Derkachov, Sergey E.
name: Manashov, Alexander N.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The problem of constructing the $SL(N,\mathbb{C})$ invariant solutions to the Yang-Baxter equation is considered. The solutions ($\mathcal{R}$-operators) for arbitrarily principal series representations of $SL(N,\mathbb{C})$ are obtained in an explicit form. We construct the commutative family of the operators $\mathcal{Q}_k(u)$ which can be identified with the Baxter operators for the noncompact $SL(N,\mathbb{C})$ spin magnet.
description: This is a contribution to the Vadim Kuznetsov Memorial Issue on Integrable Systems and Related Topics, published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA/
Les difficultés presentées par la traduction d'une oeuvre de la Côte ouest pour le lecteur européen
Creators: name: Laforge-Tallard, Magali M. A.
Publisher: name: University of British Columbia
Year: 2010

description: La literature de la Côte ouest demeure peu traduite en français. Son caractère unique et les difficultés posées par sa traduction expliquent en partie cet etat de fait regrettable. L'objectif de cette thèse est d'analyser les particularités de cette littérature régionale afin de la rendre plus accessible au traducteur et, par la-meme, au lecteur français. Pour illustrer chacun des problèmes soulevés, des exemples concrets sont utilisés. lis sont tirés de deux nouvelles de Jack Hodgins, "Every Day of His Life" et "By the River", toutes deux publiées dans Spit Delaney's Island (Toronto: Macmillan, 1976). Ces oeuvres, profondément régionalistes, fournissent une excellente source de thèmes propres à la littérature de la Côte ouest et de problèmes particuliers pour le traducteur. Chaque question traitée est accompagnée de l'étude d'un cas de traduction offrant diverses solutions possibles et expliquant leur pertinence dans le cadre d'une oeuvre de la Côte ouest. Cette analyse pratique est suivie d'un dialogue avec Jack Hodgins, visant à préciser et, dans certains cas, rectifier l'approche du traducteur et son interprétation de l'oeuvre à traduire. Des exemples de modifications qu'il est possible d'apporter àune traduction, grâce au dialogue avec l'auteur, sont proposés et discutés. Pour conclure, il sera débattu des avantages et des inconvénients d'une telle collaboration. Cette thèse met en évidence la richesse de la littérature de la Côte ouest et offre un certain nombre d'outils indispensables a sa traduction. Les caractéristiques de cette littérature régionale, une fois reconnues et comprises par le traducteur, ne forment plus un obstacle à sa lisibilité pour le lecteur françis. Elles lui ouvrent au contraire tout un univers jusqu'alors insoupçonné.
Entanglement of superconducting qubits via microwave fields: classical and quantum regimes
Creators: name: Li, Jian
name: Chalapat, K.
name: Paraoanu, G. S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study analytically and numerically the problem of two qubits with fixed coupling irradiated with quantum or classical fields. In the classical case, we derive an effective Hamiltonian, and construct composite pulse sequences leading to a CNOT gate. In the quantum case, we show that qubit-qubit-photon multiparticle entanglement and maximally entangled two-qubit state can be obtained by driving the system at very low powers (one quanta of excitation). Our results can be applied to a variety of systems of two superconducting qubits coupled to resonators.
description: 18 pages, 12 figures
Dynamic Term Structure Models for SOFR Futures
Creators: name: Skov, Jacob Bjerre
name: Skovmand, David
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mathematical Finance (q-fin.MF)
subject: FOS: Economics and business

description: The LIBOR rate is currently scheduled for discontinuation, and the replacement advocated by regulators in the US is the Secured Overnight Financing Rate (SOFR). The change has the potential to disrupt the $200 trillion market of derivatives and debt tied to the LIBOR. The only SOFR linked derivative with any significant liquidity and trading history is the SOFR futures contract, traded at the CME since 2018. We use the historical record of futures prices to construct dynamic arbitrage-free models for the SOFR term structure. The models allow you to construct forward-looking SOFR term rates, imply a SOFR discounting curve and price and risk and risk manage SOFR derivatives, not yet liquidly traded in the market. We find that a standard three-factor Gaussian arbitrage-free Nelson-Siegel model describes term rates very well but a shadow-rate extension is needed to describe the behaviour near the zero-boundary. We also find that the jumps and seasonal effects observed in SOFR, do not need to be specifically accounted for in a model for the futures prices. Finally we study the so-called convexity correction and find that it becomes significant beyond the 2 year maturity. For validation purposes we demonstrate that our model aligns closely with the methodology used by the Federal Reserve to publish indicative SOFR term rates.
description: 30 pages, 12 figures, and 7 tables
Rapid Multiwaveband Polarization Variability in the Quasar PKS 0420-014: Optical Emission from the Compact Radio Jet
Creators: name: Darcangelo, Francesca D.
name: Marscher, Alan P.
name: Jorstad, Svetlana G.
name: Smith, Paul S.
name: Larionov, Valeri M.
name: Hagen-Thorn, Vladimir A.
name: Kopatskaya, Eugenia N.
name: Williams, G. Grant
name: Gear, Walter K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: An 11-day monitoring campaign in late 2005 reveals clear correlation in polarization between the optical emission and the region of the intensity peak (the "pseudocore") at the upstream end of the jet in 43 GHz Very Long Baseline Array images in the highly variable quasar PKS 0420-014. The electric-vector position angle (EVPA) of the pseudocore rotated by about 80 degrees in four VLBA observations over a period of nine days, matching the trend of the optical EVPA. In addition, the 43 GHz EVPAs agree well with the optical values when we correct the former for Faraday rotation. Fluctuations in the polarization at both wavebands are consistent with the variable emission arising from a standing conical shock wave that compresses magnetically turbulent plasma in the ambient jet. The volume of the variable component is the same at both wavebands, although only ~20% of the total 43 GHz emission arises from this site. The remainder of the 43 GHz flux density must originate in a separate region with very low polarization. If 0420-014 is a typical case, the nonthermal optical emission from blazars originates primarily in and near the pseudocore rather than closer to the central engine where the flow collimates and accelerates.
description: 9 pages, 2 figures; Accepted for publication in ApJ
Phase based Resource Aware Scheduler with Job Profiling for MapReduce
Creators: name: Sudhakaran, Dhanya
name: Renjith, Shini
Publisher: name: figshare
Year: 2016
Subjects: subject: 80704 Information Retrieval and Web Search
subject: FOS: Media and communications
subject: 80607 Information Engineering and Theory
subject: FOS: Computer and information sciences
subject: 80611 Information Systems Theory

description: MapReduce has become a popular model for data mining computation in these days. MapReduce break down each job into small map tasks and reduce tasks. These tasks are executed in parallel across a large number of machines. This can significantly reduce the running time of data-intensive jobs. The existing schedulers for MapReduce are focusing on scheduling at the task-level and they offer only sub-optimal job performance. This is because tasks can have highly varying resource requirements during their lifetime. These varying requirements make it difficult for task-level schedulers to effectively utilize available resources to reduce job execution time. To address this limitation, a fine-grained, phase and resource-aware MapReduce Scheduler was introduced that divides tasks into phases, where each phase has a constant resource usage profile, and performs scheduling at the phase level. Job profiling is not considered in this scheduler. To meet the need for job profiling, Starfish, a job profiler can be built into the system. Starfish can provide accurate resource information that can be used by the scheduler so that it can take effective scheduling decisions and reduce the job execution time. By using such a job profiler integrated within the scheduler, the performance of the scheduler is effective than the existing task-level schedulers.
Certificate of Insurance, Springs Historical Society, April 15, 1985
Creators: name: Springs Historical Society/Library
name: Town Of East Hampton
Publisher: name: Unknown
Year: 1985
Subjects: Springs
East Hampton
Insurance
Insurance certificates
Insurance companies

description: Insurance certificate for Springs Historical Society from J. Edwards Gay Jr. Agency Inc. for Continental Insurance, April 15, 1985.
description: This material was lent to the Long Island Collection by the Springs Historical Society Library for digitization purposes.
Más de una década haciendo ciencia ciudadana
Creators: name: Perelló, Josep
Publisher: name: Zenodo
Year: 2024

description: Apresentação realizada na sessão “Conferência de Encerramento" da 15ª Conferência Lusófona de Ciência Aberta, na Escola Superior de Enfermagem do Porto (ESEP), de 01 a 04 de outubro de 2024.
Predicting speech intelligibility from EEG in a non-linear classification paradigm
Creators: name: Accou, Bernd
name: Monesi, Mohammad Jalilpour
name: Van hamme, Hugo
name: Francart, Tom
Publisher: name: arXiv
Year: 2021
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Machine Learning (cs.LG)
subject: Sound (cs.SD)
subject: Signal Processing (eess.SP)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: Objective: Currently, only behavioral speech understanding tests are available, which require active participation of the person being tested. As this is infeasible for certain populations, an objective measure of speech intelligibility is required. Recently, brain imaging data has been used to establish a relationship between stimulus and brain response. Linear models have been successfully linked to speech intelligibility but require per-subject training. We present a deep-learning-based model incorporating dilated convolutions that operates in a match/mismatch paradigm. The accuracy of the model's match/mismatch predictions can be used as a proxy for speech intelligibility without subject-specific (re)training. Approach: We evaluated the performance of the model as a function of input segment length, EEG frequency band and receptive field size while comparing it to multiple baseline models. Next, we evaluated performance on held-out data and finetuning. Finally, we established a link between the accuracy of our model and the state-of-the-art behavioral MATRIX test. Main results: The dilated convolutional model significantly outperformed the baseline models for every input segment length, for all EEG frequency bands except the delta and theta band, and receptive field sizes between 250 and 500 ms. Additionally, finetuning significantly increased the accuracy on a held-out dataset. Finally, a significant correlation (r=0.59, p=0.0154) was found between the speech reception threshold estimated using the behavioral MATRIX test and our objective method. Significance: Our method is the first to predict the speech reception threshold from EEG for unseen subjects, contributing to objective measures of speech intelligibility.
description: 12 pages, 12 figures
GreenFlow: A Computation Allocation Framework for Building Environmentally Sound Recommendation System
Creators: name: Lu, Xingyu
name: Liu, Zhining
name: Guan, Yanchu
name: Zhang, Hongxuan
name: Zhuang, Chenyi
name: Ma, Wenqi
name: Tan, Yize
name: Gu, Jinjie
name: Zhang, Guannan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Information Retrieval (cs.IR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Given the enormous number of users and items, industrial cascade recommendation systems (RS) are continuously expanded in size and complexity to deliver relevant items, such as news, services, and commodities, to the appropriate users. In a real-world scenario with hundreds of thousands requests per second, significant computation is required to infer personalized results for each request, resulting in a massive energy consumption and carbon emission that raises concern.
 This paper proposes GreenFlow, a practical computation allocation framework for RS, that considers both accuracy and carbon emission during inference. For each stage (e.g., recall, pre-ranking, ranking, etc.) of a cascade RS, when a user triggers a request, we define two actions that determine the computation: (1) the trained instances of models with different computational complexity; and (2) the number of items to be inferred in the stage. We refer to the combinations of actions in all stages as action chains. A reward score is estimated for each action chain, followed by dynamic primal-dual optimization considering both the reward and computation budget. Extensive experiments verify the effectiveness of the framework, reducing computation consumption by 41% in an industrial mobile application while maintaining commercial revenue. Moreover, the proposed framework saves approximately 5000kWh of electricity and reduces 3 tons of carbon emissions per day.
Criterion for dynamical chiral symmetry breaking
Creators: name: Jain, Bithika
name: Mitra, Indrajit
name: Sharatchandra, H. S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Superconductivity (cond-mat.supr-con)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The Bethe-Salpeter equation is related to a generalized quantum-mechanical Hamiltonian. Instability of the presumed vacuum, indicated by a tachyon, is related to a negative energy eigenstate of this Hamiltonian. The variational method shows that an arbitrarily weak long-range attraction leads to chiral symmetry breaking, except in the scale-invariant case when the instability occurs at a critical value of the coupling. In the case of short-range attraction, an upper bound for the critical coupling is obtained.
description: 10 pages, 2 figures; made minor changes, published version
Investigating salient representations and label Variance in Dimensional Speech Emotion Analysis
Creators: name: Mitra, Vikramjit
name: Nie, Jingping
name: Azemi, Erdrin
Publisher: name: arXiv
Year: 2023
Subjects: subject: Sound (cs.SD)
subject: Artificial Intelligence (cs.AI)
subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Representations derived from models such as BERT (Bidirectional Encoder Representations from Transformers) and HuBERT (Hidden units BERT), have helped to achieve state-of-the-art performance in dimensional speech emotion recognition. Despite their large dimensionality, and even though these representations are not tailored for emotion recognition tasks, they are frequently used to train large speech emotion models with high memory and computational costs. In this work, we show that there exist lower-dimensional subspaces within the these pre-trained representational spaces that offer a reduction in downstream model complexity without sacrificing performance on emotion estimation. In addition, we model label uncertainty in the form of grader opinion variance, and demonstrate that such information can improve the models generalization capacity and robustness. Finally, we compare the robustness of the emotion models against acoustic degradations and observed that the reduced dimensional representations were able to retain the performance similar to the full-dimensional representations without significant regression in dimensional emotion performance.
description: 5 pages
The Skyrme Interaction in finite nuclei and nuclear matter
Creators: name: Stone, J. R.
name: Reinhard, P. -G.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Self-consistent mean-field models are a powerful tool in the investigation of nuclear structure and low-energy dynamics. They are based on effective energy-density functionals, often formulated in terms of effective density-dependent nucleon-nucleon interactions. The free parameters of the functional are adjusted to empirical data. A proper choice of these parameters requires a comprehensive set of constraints covering experimental data on finite nuclei, concerning static as well as dynamical properties, empirical characteristics of nuclear matter, and observational information on nucleosynthesis, neutron stars and supernovae. This work aims at a comprehensive survey of the performance of one of the most successful non-relativistic self-consistent method, the Skyrme-Hartree-Fock model (SHF), with respect to these constraints. A full description of the Skyrme functional is given and its relation to other effective interactions is discussed. The validity of the application of SHF far from stability and in dense environments beyond the nuclear saturation density is critically assessed. The use of SHF in models extended beyond the mean field approximation by including some correlations is discussed. Finally, future prospects for further development of SHF towards a more consistent application of the existing and promisingly newly developing constraints are outlined.
description: 71 pages, 22 figures. Accepted for publication in Prog.Part.Nucl.Phys
Extending light-front holographic QCD using the 't Hooft Equation
Creators: name: Ahmady, Mohammad
name: Dahiya, Harleen
name: Kaur, Satvir
name: Mondal, Chandan
name: Sandapen, Ruben
name: Sharma, Neetika
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show the 't Hooft Equation and the light-front holographic Schrödinger Equation are complementary to each other in governing the transverse and longitudinal dynamics of colour confinement in quark-antiquark mesons. Together, they predict remarkably well the light, heavy-light and heavy-heavy meson spectroscopic data. The universal emerging hadronic scale of light-front holography, $κ\approx 0.5$ GeV, controls the transverse dynamics of confinement in all mesons. In heavy-heavy mesons, it also coincides numerically with the 't Hooft coupling which governs longitudinal confinement, thus reflecting the restoration of manifest 3-dimensional rotational symmetry
description: 7 pages, 3 figures, 1 table. Revised text, numerical results unchanged. Accepted for publication in PLB
A educação superior no Brasil: política de financiamento e expansão da oferta
Creators: name: Mota Júnior, Antônio de Macêdo
Publisher: name: figshare
Year: 2021
Subjects: subject: 130103 Higher Education
subject: FOS: Educational sciences
subject: 160506 Education Policy
subject: FOS: Political science

description: O presente trabalho aborda o tema da política pública de educação no Brasil, no que diz respeito ao financiamento e expansão da oferta de educação superior. Este estudo exploratório, bibliográfico e documental objetiva caracterizar a política de educação superior no Brasil, sob os aspectos do surgimento das universidades e da expansão da oferta de educação superior no país, bem como da política de financiamento para a educação. Os resultados evidenciam uma inserção extremamente tardia das universidades, apesar do histórico no ensino superior que data do Brasil Colônia. Apontam, ainda, uma política de financiamento da educação baseada em vinculação de recursos da arrecadação de impostos e apoiada em marcos normativos, como a Constituição Federal de 1988. Além disso, demonstram que a expansão da oferta de ensino superior deu-se, principalmente, pela iniciativa privada e por ações do governo federal, como o REUNI.
Details of soft particle clogging in two-dimensional hoppers
Creators: name: Tao, Ran
name: Wilson, Madelyn
name: Weeks, Eric R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study the outflow of soft particles through quasi-two-dimensional hoppers with both experiments and simulations. The experiments utilize spheres made with soft hydrogel, silicon rubber and glass. The hopper chamber has an adjustable exit width and tilt angle (the latter to control the magnitude of gravitational forcing). Our simulation mimics the experiments using purely two-dimensional soft particles with viscous interactions but no friction. Results from both simulations and experiments demonstrate that clogging is easier for reduced gravitational force or stiffer particles. For particles with low or no friction, the average number of particles in a clogging arch depends only on the ratio between hopper exit width and particle's diameter. In contrast for the silicon rubber particles with larger frictional interactions, arches are larger than the low friction case. Additionally, an analysis of the number of particles left in the hopper when clogging occurs provides evidence for a hydrostatic pressure effect that is relevant for the clogging of soft particles, but less so for the harder (glass) or frictional (silicon rubber) particles.
description: Followup to arXiv:1512.02500 (Hong et al, PRE 2017); v2 fixed bug with Gompertz distribution fits
Illuminating entanglement shadows of BTZ black holes by a generalized entanglement measure
Creators: name: Gerbershagen, Marius
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We define a generalized entanglement measure in the context of the AdS/CFT correspondence. Compared to the ordinary entanglement entropy for a spatial subregion dual to the area of the Ryu-Takayanagi surface, we take into account both entanglement between spatial degrees of freedom as well as between different fields of the boundary theory. Moreover, we resolve the contribution to the entanglement entropy of strings with different winding numbers in the bulk geometry. We then calculate this generalized entanglement measure in a thermal state dual to the BTZ black hole in the setting of the D1/D5 system at and close to the orbifold point. We find that the entanglement entropy defined in this way is dual to the length of a geodesic with non-zero winding number. Such geodesics probe the entire bulk geometry, including the entanglement shadow up to the horizon in the one-sided black hole as well as the wormhole growth in the case of a two-sided black hole for an arbitrarily long time. Therefore, we propose that the entanglement structure of the boundary state is enough to reconstruct asymptotically AdS$_3$ geometries up to extremal surface barriers.
description: 15 pages, 2 figures, published version
Click-Through Rate Prediction in Online Advertising: A Literature Review
Creators: name: Yang, Yanwu
name: Zhai, Panyu
Publisher: name: arXiv
Year: 2022
Subjects: subject: Information Retrieval (cs.IR)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences
subject: I.2.6
subject: 68Txx

description: Predicting the probability that a user will click on a specific advertisement has been a prevalent issue in online advertising, attracting much research attention in the past decades. As a hot research frontier driven by industrial needs, recent years have witnessed more and more novel learning models employed to improve advertising CTR prediction. Although extant research provides necessary details on algorithmic design for addressing a variety of specific problems in advertising CTR prediction, the methodological evolution and connections between modeling frameworks are precluded. However, to the best of our knowledge, there are few comprehensive surveys on this topic. We make a systematic literature review on state-of-the-art and latest CTR prediction research, with a special focus on modeling frameworks. Specifically, we give a classification of state-of-the-art CTR prediction models in the extant literature, within which basic modeling frameworks and their extensions, advantages and disadvantages, and performance assessment for CTR prediction are presented. Moreover, we summarize CTR prediction models with respect to the complexity and the order of feature interactions, and performance comparisons on various datasets. Furthermore, we identify current research trends, main challenges and potential future directions worthy of further explorations. This review is expected to provide fundamental knowledge and efficient entry points for IS and marketing scholars who want to engage in this area.
description: 85 pages, 12 figures, 9 tables