cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A política de educação superior prevista no Plano Estadual de Educação da Bahia (2016-2026)
Creators: name: Mota Júnior, Antônio de Macêdo
Publisher: name: figshare
Year: 2021
Subjects: subject: 130304 Educational Administration, Management and Leadership
subject: FOS: Educational sciences
subject: 160506 Education Policy
subject: FOS: Political science

description: O presente trabalho aborda o tema das políticas públicas educacionais, objetivando identificar a política de educação superior do Estado da Bahia prevista no Plano Estadual de Educação (PEE-BA 2016-2026). Este estudo exploratório, bibliográfico e documental realiza uma breve revisão bibliográfica sobre políticas públicas e caracteriza os instrumentos de implementação da política educacional no país e na Bahia, além das implicações do PEE-BA 2016-2026 para a educação superior baiana. Os resultados apontam para a necessidade de expansão do acesso à educação superior, principalmente aos jovens e adultos de 18 a 24 anos, com a ampliação da oferta de vagas. Os resultados demonstram ainda a necessidade de revisão no PEE-BA 2016-2026, visando à adequação dos percentuais estabelecidos em algumas de suas metas, referentes à educação superior.
Noise Effects on the Wilczek-Zee Geometric Phase
Creators: name: Aguilar, Pedro
name: Chryssomalakos, Chryssomalis
name: Guzmán-González, Edgar
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Non-abelian geometric phases have been proposed as an essential ingredient in logical gate implementation -- their geometric nature guarantees their invariance under reparametrizations of the associated cyclic path in parameter space. However, they are still dependent on deformations of that path, due to, e.g., noise. The first question that we tackle in this work is how to quantify in a meaningful way this effect of noise, focusing, for concreteness, on the nuclear quadrupole resonance hamiltonian -- other systems of this nature can clearly be treated analogously. We consider a precessing magnetic field that drives adiabatically a degenerate doublet, and is subjected to noise, the effects of which on the Wilczek-Zee holonomy are computed analytically. A critical review of previous related works reveals a series of assumptions, like sudden jumps in the field, or the presence of white noise, that might violate adiabaticity. We propose a state-independent measure of the effect, and then consider sinusoidal noise in the field, of random amplitude and phase. We find that all integer noise frequencies $m \neq 2$ behave similarly, in a manner reminiscent of the abelian case, but that noise of frequency $m = 2$ has a very different, and, at the same time, very pronounced effect, that might well affect robustness estimations.
description: 25 pages, 8 figures
Experiments with moduli of quadrilaterals
Creators: name: Rasila, Antti
name: Vuorinen, Matti
Publisher: name: arXiv
Year: 2007
Subjects: subject: Numerical Analysis (math.NA)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 65E05; 31A15

description: Basic facts and definitions of conformal moduli of rings and quadrilaterals are recalled. Some computational methods are reviewed. For the case of quadrilaterals with polygonal sides, some recent results are given. Some numerical experiments are presented.
A Novel Upsampling and Context Convolution for Image Semantic Segmentation
Creators: name: Sediqi, Khwaja Monib
name: Lee, Hyo Jong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Semantic segmentation, which refers to pixel-wise classification of an image, is a fundamental topic in computer vision owing to its growing importance in robot vision and autonomous driving industries. It provides rich information about objects in the scene such as object boundary, category, and location. Recent methods for semantic segmentation often employ an encoder-decoder structure using deep convolutional neural networks. The encoder part extracts feature of the image using several filters and pooling operations, whereas the decoder part gradually recovers the low-resolution feature maps of the encoder into a full input resolution feature map for pixel-wise prediction. However, the encoder-decoder variants for semantic segmentation suffer from severe spatial information loss, caused by pooling operations or convolutions with stride, and does not consider the context in the scene. In this paper, we propose a dense upsampling convolution method based on guided filtering to effectively preserve the spatial information of the image in the network. We further propose a novel local context convolution method that not only covers larger-scale objects in the scene but covers them densely for precise object boundary delineation. Theoretical analyses and experimental results on several benchmark datasets verify the effectiveness of our method. Qualitatively, our approach delineates object boundaries at a level of accuracy that is beyond the current excellent methods. Quantitatively, we report a new record of 82.86% and 81.62% of pixel accuracy on ADE20K and Pascal-Context benchmark datasets, respectively. In comparison with the state-of-the-art methods, the proposed method offers promising improvements.
description: 11 pages, published in sensors journal
On-orbit alignment and diagnostics for the LISA Technology Package
Creators: name: Marin, A F Garcia
name: Wand, V
name: Steier, F
name: Cervantes, F Guzman
name: Bogenstahl, J
name: Jennrich, O
name: Heinzel, G
name: Danzmann, K
Publisher: name: arXiv
Year: 2006
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: This paper presents a procedure to perform fully autonomous on-orbit alignment of the interferometer on board the LISA Technology Package (LTP). LTP comprises two free-floating test masses as inertial sensors that additionally serve as end mirrors of a set of interferometers. From the output signals of the interferometers, a subset has been selected to obtain alignment information of the test masses. Based on these signals, an alignment procedure was developed and successfully tested on the engineering model of the optical bench. Furthermore, operation procedures for the characterization of critical on-orbit properties of the optical metrology system (e.g. fibre noise) have been established.
description: 7 pages, 6 figures
Sapo de espuelas – Pelobates cultripes (Cuvier, 1829)
Creators: name: Recuero, Ernesto
name: Salvador Milla, Alfredo
Publisher: name: Salvador Milla, Alfredo
Year: 2014

description: Anfibios - Orden Anura - Familia Pelobatidae en la Enciclopedia Virtual de Vertebrados Españoles, http://www.vertebradosibericos.org/. Versiones anteriores: 24-02-2010; 3-09-2014
description: A comprehensive review of the natural history of the Western spadefoot Pelobates cultripes in Spain.
Tortuga mora – Testudo graeca Linnaeus, 1758
Creators: name: Díaz-Paniagua, Carmen
name: Andreu, Ana C.
name: Salvador Milla, Alfredo
Publisher: name: Salvador Milla, Alfredo
Year: 2015

description: Reptiles - Orden Quelonios - Familia Testudinidae en la Enciclopedia Virtual de Vertebrados Españoles, http://www.vertebradosibericos.org/. Versiones anteriores: 29-07-2005, 28-12-2007; 21-07-2009
description: A comprehensive review of the natural history of the Spur-thighed tortoise Testudo graeca in Spain.
Tortuga carey – Eretmochelys imbricata (Linnaeus, 1766)
Creators: name: Revuelta, Ohiana
name: Tomás, Jesús
name: Salvador Milla, Alfredo
Publisher: name: Salvador Milla, Alfredo
Year: 2015

description: Reptiles - Orden Quelonios - Familia Cheloniidae en la Enciclopedia Virtual de Vertebrados Españoles, http://www.vertebradosibericos.org/. Versiones anteriores: 25-11-2010
description: A comprehensive review of the natural history of the Hawksbill turtle Eretmochelys imbricata in Spain.
Política de financiamento para o Sistema Estadual Baiano de Educação Superior
Creators: name: Mota Júnior, Antônio de Macêdo
Publisher: name: figshare
Year: 2021
Subjects: subject: 130304 Educational Administration, Management and Leadership
subject: FOS: Educational sciences
subject: 160506 Education Policy
subject: FOS: Political science

description: Este trabalho aborda o tema da política de financiamento para o Sistema Estadual Baiano de Educação Superior, no que diz respeito às Universidades Estaduais da Bahia (UEBA), com o objetivo de identificar dimensões relevantes à compreensão das demandas por recursos públicos na política de financiamento da Universidade Estadual de Feira de Santana (UEFS), integrante desse sistema estadual, no período de 2005 a 2014. Este estudo apresenta os resultados de uma pesquisa exploratória, descritiva, bibliográfica e documental, contextualizando o surgimento das UEBA, bem como caracterizando aspectos da política pública brasileira de educação superior. A partir desses pressupostos teóricos, a pesquisa realizou uma análise exploratória, considerando o financiamento como categoria estruturante, que se desdobrou em oito categorias (graduação, pós-graduação, pesquisa, extensão, assistência estudantil, corpo docente, corpo técnico-administrativo e infraestrutura) e apropriou-se de perspectivas de natureza monetária e não monetária, para identificar dimensões relevantes no processo de financiamento da UEFS. Os resultados obtidos apontaram para um diálogo com o paradigma multidimensional da gestão educacional, abordado por Sander (1995), e identificaram três dimensões relevantes no processo de financiamento da instituição: a oferta de atividades universitárias, numa dimensão pedagógica; a política de pessoal, numa dimensão política, que se refere à qualificação docente, à valorização do corpo técnico-administrativo e à assistência estudantil; e a infraestrutura, numa dimensão econômica, que se refere à manutenção e expansão dos investimentos em infraestrutura da instituição. O estudo também destacou contribuições para subsidiar a discussão e o aperfeiçoamento da política de financiamento para o Sistema Estadual Baiano de Educação Superior, visando garantir a sustentabilidade das atividades universitárias nas UEBA, diante de limitações no tesouro estadual e restrições orçamentárias.
A semiregularity map annihilating obstructions to deforming holomorphic maps
Creators: name: Iacono, Donatella
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Geometry (math.AG)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 13D10, 14D15

description: We study deformations of holomorphic maps of compact, complex, Kähler manifolds. In particular, we describe a generalization of Bloch's semiregularity map that annihilates obstructions to deform holomorphic maps with fixed codomain.
description: 14 pages, minor changes, revised introduction; scheduled to appear in Canadian Math. Bull. Issue 54/3 (September, 2011)
Magnetic field orientation effect on specific heat in a p-wave superconductor
Creators: name: Litak, Grzegorz
name: Wysokinski, Karol I.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The effect of magnetic field on specific heat of a p-wave spin triplet superconductor has been analyzed. To describe superconductivity we used a single band model with various realizations of p-wave order parameter and analyzed the effect of a Doppler shift in different temperatures.
description: 5 pages, 4 figures
Culebrilla ciega – Blanus cinereus (Vandelli, 1797)
Creators: name: López Martínez, Pilar
name: Salvador Milla, Alfredo
Publisher: name: Salvador Milla, Alfredo
Year: 2015

description: Reptiles - Orden Squamata - Familia Blanidae en la Enciclopedia Virtual de Vertebrados Españoles, http://www.vertebradosibericos.org/. Versiones anteriores: 14-03-2003; 2-04-2004; 30-11-2006; 10-05-2007; 27-07-2009; 8-10-2009
description: A comprehensive review of the natural history of the Iberian worm lizard Blanus cinereus in Spain.
Enhance to Read Better: A Multi-Task Adversarial Network for Handwritten Document Image Enhancement
Creators: name: Jemni, Sana Khamekhem
name: Souibgui, Mohamed Ali
name: Kessentini, Yousri
name: Fornés, Alicia
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Handwritten document images can be highly affected by degradation for different reasons: Paper ageing, daily-life scenarios (wrinkles, dust, etc.), bad scanning process and so on. These artifacts raise many readability issues for current Handwritten Text Recognition (HTR) algorithms and severely devalue their efficiency. In this paper, we propose an end to end architecture based on Generative Adversarial Networks (GANs) to recover the degraded documents into a clean and readable form. Unlike the most well-known document binarization methods, which try to improve the visual quality of the degraded document, the proposed architecture integrates a handwritten text recognizer that promotes the generated document image to be more readable. To the best of our knowledge, this is the first work to use the text information while binarizing handwritten documents. Extensive experiments conducted on degraded Arabic and Latin handwritten documents demonstrate the usefulness of integrating the recognizer within the GAN architecture, which improves both the visual quality and the readability of the degraded document images. Moreover, we outperform the state of the art in H-DIBCO challenges, after fine tuning our pre-trained model with synthetically degraded Latin handwritten images, on this task.
description: Accepted in Pattern Recognition
The Blind Watchmaker Network: Scale-freeness and Evolution
Creators: name: Minnhagen, Petter
name: Bernhardsson, Sebastian
Publisher: name: arXiv
Year: 2008
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Molecular Networks (q-bio.MN)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: It is suggested that the degree distribution for networks of the cell-metabolism for simple organisms reflects an ubiquitous randomness. This implies that natural selection has exerted no or very little pressure on the network degree distribution during evolution. The corresponding random network, here termed the blind watchmaker network has a power-law degree distribution with an exponent gamma >= 2. It is random with respect to a complete set of network states characterized by a description of which links are attached to a node as well as a time-ordering of these links. No a priory assumption of any growth mechanism or evolution process is made. It is found that the degree distribution of the blind watchmaker network agrees very precisely with that of the metabolic networks. This implies that the evolutionary pathway of the cell-metabolism, when projected onto a metabolic network representation, has remained statistically random with respect to a complete set of network states. This suggests that even a biological system, which due to natural selection has developed an enormous specificity like the cellular metabolism, nevertheless can, at the same time, display well defined characteristics emanating from the ubiquitous inherent random element of Darwinian evolution. The fact that also completely random networks may have scale-free node distributions gives a new perspective on the origin of scale-free networks in general.
description: 5 pages, 3 figures
Concentration for norms of infinitely divisible vectors with independent components
Creators: name: Houdré, Christian
name: Marchal, Philippe
name: Reynaud-Bouret, Patricia
Publisher: name: arXiv
Year: 2006
Subjects: subject: Probability (math.PR)
subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: We obtain dimension-free concentration inequalities for $\ell^p$-norms, $p\geq2$, of infinitely divisible random vectors with independent coordinates and finite exponential moments. Besides such norms, the methods and results extend to some other classes of Lipschitz functions.
description: Published in at http://dx.doi.org/10.3150/08-BEJ131 the Bernoulli (http://isi.cbs.nl/bernoulli/) by the International Statistical Institute/Bernoulli Society (http://isi.cbs.nl/BS/bshome.htm)
Additional file 1 of CytoTree: an R/Bioconductor package for analysis and visualization of flow and mass cytometry data
Creators: name: Dai, Yuting
name: Xu, Aining
name: Li, Jianfeng
name: Wu, Liang
name: Yu, Shanhe
name: Chen, Jun
name: Zhao, Weili
name: Sun, Xiao-Jian
name: Huang, Jinyan
Publisher: name: figshare
Year: 2021
Subjects: subject: Space Science
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Cancer
subject: Hematology

description: Additional file 1. Supplementary figures of CytoTree. Figure S1–S8.
Reentrant and Whirling Hexagons in Non-Boussinesq convection
Creators: name: Madruga, Santiago
name: Riecke, Hermann
Publisher: name: arXiv
Year: 2007
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We review recent computational results for hexagon patterns in non-Boussinesq convection. For sufficiently strong dependence of the fluid parameters on the temperature we find reentrance of steady hexagons, i.e. while near onset the hexagon patterns become unstable to rolls as usually, they become again stable in the strongly nonlinear regime. If the convection apparatus is rotated about a vertical axis the transition from hexagons to rolls is replaced by a Hopf bifurcation to whirling hexagons. For weak non-Boussinesq effects they display defect chaos of the type described by the two-dimensional complex Ginzburg-Landau equation. For stronger non-Boussinesq effects the Hopf bifurcation becomes subcritical and localized bursting of the whirling amplitude is found. In this regime the coupling of the whirling amplitude to (small) deformations of the hexagon lattice becomes important. For yet stronger non-Boussinesq effects this coupling breaks up the hexagon lattice and strongly disordered states characterized by whirling and lattice defects are obtained.
description: Accepted in European Physical Journal Special Topics
Salamanquesa común – Tarentola mauritanica (Linnaeus, 1758)
Creators: name: Salvador Milla, Alfredo
Publisher: name: Salvador Milla, Alfredo
Year: 2016

description: Reptiles - Orden Squamata - Familia Phyllodactylidae en la Enciclopedia Virtual de Vertebrados Españoles, http://www.vertebradosibericos.org/.Versiones anteriores: 17-12-2002; 9-04-2003; 23-07-2004; 15-12-2004; 10-02-2005; 4-12-2006; 19-02-2007; 9-01-2008; 18-03-2008; 29-07-2009; 25-11-2011; 23-01-2015
description: A comprehensive review of the natural history of the Moorish gecko Tarentola mauritanica in Spain.
Perenquén de Boettger – Tarentola boettgeri Steindachner, 1891
Creators: name: Salvador Milla, Alfredo
name: Brown, Richard P.
Publisher: name: Salvador Milla, Alfredo
Year: 2015

description: Reptiles - Orden Squamata - Familia Phyllodactylidae en la Enciclopedia Virtual de Vertebrados Españoles, http://www.vertebradosibericos.org/. Versiones anteriores: 15-03-2007; 29-05-2007; 30-07-2009
description: A comprehensive review of the natural history of the Gran Canaria Gecko Tarentola boettgeri in Spain.
Perenquén gomero – Tarentola gomerensis Joger y Bischoff, 1983
Creators: name: Salvador Milla, Alfredo
Publisher: name: Salvador Milla, Alfredo
Year: 2015

description: Reptiles - Orden Squamata - Familia Phyllodactylidae en la Enciclopedia Virtual de Vertebrados Españoles, http://www.vertebradosibericos.org/. Versiones anteriores: 24-01-2007; 31-07-2009
description: A comprehensive review of the natural history of the La Gomera Gecko Tarentola gomerensis in Spain.
MOESM9 of Mutation of 4-coumarate: coenzyme A ligase 1 gene affects lignin biosynthesis and increases the cell wall digestibility in maize brown midrib5 mutants
Creators: name: Xiong, Wangdan
name: Wu, Zhenying
name: Liu, Yuchen
name: Li, Yu
name: Su, Kunlong
name: Bai, Zetao
name: Guo, Siyi
name: Hu, Zhubing
name: Zhang, Zhiming
name: Bao, Yan
name: Sun, Juan
name: Yang, Guofeng
name: Fu, Chunxiang
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Evolutionary Biology
subject: Developmental Biology
subject: Cancer
subject: Plant Biology
subject: Virology
subject: Computational Biology

description: Additional file 9: Table S5. Signal intension of the probe sets of regulated genes in bm5-504J mutant and B73 wild-type plant.
Open Reviewers Africa – A workshop to empower the next generation of African Peer Reviewers
Creators: name: Owango, Joy
name: Munene, Aurelia
name: Ngugi, Wangari Joyce
name: Obanda, Johanssen
name: Havemann, Johanna
name: Saderi, Daniela
name: Korzec, Kornelia
Publisher: name: Zenodo
Year: 2021

description: Eider Africa, TCC Africa, AfricArXiv, PREreview, and eLife are partnering to develop resources and a dissemination strategy for the delivery of an open peer review workshop to African research communities in the life sciences. Our goal is to build capacity and enthusiasm for scholarly open review of preprints among African researchers and to provide opportunities to actively participate in peer review and gain recognition through community engagement. We will showcase our approach to co-creating resources and a replicable framework tailored to the needs and objectives of a growing community of African reviewers in the context of the changing global landscape of scientific research assessment and dissemination.

 Presentation held on Dec 9, 2021 at FORCE2021 by Joy Owango, director at TCC Africa on behalf of the project team.
\textit{Ab initio} lattice thermal conductivity of MgSiO$_3$ across perovskite-postperovskite phase transition
Creators: name: Zhang, Zhen
name: Wentzcovitch, Renata M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Lattice thermal conductivity ($κ_{lat}$) of MgSiO$_3$ postperovskite (MgPPv) under the Earth's lower mantle high pressure-temperature conditions is studied using the phonon quasiparticle approach by combing \textit{ab initio} molecular dynamics and lattice dynamics simulations. Phonon lifetimes are extracted from the phonon quasiparticle calculations, and the phonon group velocities are computed from the anharmonic phonon dispersions, which in principle capture full anharmonicity. It is found that throughout the lowermost mantle, including the D" region, $κ_{lat}$ of MgPPv is ~25% larger than that of MgSiO$_3$ perovskite (MgPv), mainly due to MgPPv's higher phonon velocities. Such a difference in phonon velocities between the two phases originates in the MgPPv's relatively smaller primitive cell. Systematic results of temperature and pressure dependences of both MgPPv's and MgPv's $κ_{lat}$ are demonstrated.
The Chemical Evolution of Dwarf Spheroidal Galaxies: Dissecting the Inner Regions and their Stellar Populations
Creators: name: Marcolini, A.
name: D'Ercole, A.
name: Battaglia, G.
name: Gibson, B. K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using 3-dimensional hydrodynamical simulations of isolated dwarf spheroidal galaxies (dSphs), we undertake an analysis of the chemical properties of their inner regions, identifying the respective roles played by Type Ia (SNe Ia) and Type II (SNe II) supernovae. The effect of inhomogeneous pollution from SNe Ia is shown to be prominent within two core radii, with the stars forming therein amounting to ~20% of the total. These stars are relatively iron-rich and alpha-element-depleted compared to the stars forming in the rest of the galaxy. At odds with the projected stellar velocity dispersion radial profile, the actual 3-dimensional one shows a depression in the central region, where the most metal-rich (ie. [Fe/H]-rich) stars are partly segregated. This naturally results in two different stellar populations, with an anti-correlation between [Fe/H] and velocity dispersion, in the same sense as that observed in the Sculptor and Fornax dSphs. Because the most iron-rich stars in our model are also the most alpha-depleted, a natural prediction and test of our model is that the same radial segregation effects should exist between [alpha/Fe] and velocity dispersion.
description: 10 pages, 7 figures, MNRAS accepted
WKB periods for higher order ODE and TBA equations
Creators: name: Ito, Katsushi
name: Kondo, Takayasu
name: Kuroda, Kohei
name: Shu, Hongfei
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study the WKB periods for the $(r+1)$-th order ordinary differential equation (ODE) which is obtained by the conformal limit of the linear problem associated with the $A_r^{(1)}$ affine Toda field equation. We compute the quantum corrections by using the Picard-Fuchs operators. The ODE/IM correspondence provides a relation between the Wronskians of the solutions and the Y-functions which satisfy the thermodynamic Bethe ansatz (TBA) equation related to the Lie algebra $A_r$. For the quadratic potential, we propose a formula to show the equivalence between the logarithm of the Y-function and the WKB period, which is confirmed by solving the TBA equation numerically.
description: 1+31 pages, references added, typos corrected, discussions on wall-crossing added, published version
A survey of size counting in population protocols
Creators: name: Doty, David
name: Eftekhari, Mahsa
Publisher: name: arXiv
Year: 2021
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences
subject: 68M18, 68W15

description: The population protocol model describes a network of $n$ anonymous agents who cannot control with whom they interact. The agents collectively solve some computational problem through random pairwise interactions, each agent updating its own state in response to seeing the state of the other agent. They are equivalent to the model of chemical reaction networks, describing abstract chemical reactions such as $A+B \rightarrow C+D$, when the latter is subject to the restriction that all reactions have two reactants and two products, and all rate constants are 1. The counting problem is that of designing a protocol so that $n$ agents, all starting in the same state, eventually converge to states where each agent encodes in its state an exact or approximate description of population size $n$. In this survey paper, we describe recent algorithmic advances on the counting problem.
New nonadiabatic pulsation computations on full PG1159 evolutionary models: the theoretical GW Vir instability strip revisited
Creators: name: Córsico, A. H.
name: Althaus, L. G.
name: Bertolami, M. M. Miller
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We reexamine the theoretical instability domain of pulsating PG1159 stars (GW Vir variables). We performed an extensive g-mode stability analysis on PG1159 evolutionary models with stellar masses ranging from 0.530 to 0.741 Mo for which the complete evolutionary stages of their progenitors from the ZAMS, through the thermally pulsing AGB and born-again phases to the domain of the PG1159 stars have been considered. We found that pulsations in PG1159 stars are excited by the kappa-mechanism due to partial ionization of carbon and oxygen, and that no composition gradients are needed between the surface layers and the driving region, much in agreement with previous studies. We show, for the first time, the existence of a red edge of the instability strip at high luminosities. We found that all of the GW Vir stars lay within our theoretical instability strip. Our results suggest a qualitative good agreement between the observed and the predicted ranges of unstable periods of individual stars. Finally, we found that generally the seismic masses (derived from the period spacing) of GW Vir stars are somewhat different from the masses suggested by evolutionary tracks coupled with spectroscopy. Improvements in the evolution during the thermally pulsing AGB phase and/or during the core helium burning stage and early AGB could help to alleviate the persisting discrepancies.
description: 10 pages, 8 figures. To be published in Astronomy and Astrophysics
General bound on the performance of counter-diabatic driving acting on dissipative spin systems
Creators: name: Funo, Ken
name: Lambert, Neill
name: Nori, Franco
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Counter-diabatic driving (CD) is a technique in quantum control theory designed to counteract nonadiabatic excitations and guide the system to follow its instantaneous energy eigenstates, and hence has applications in state preparation, quantum annealing, and quantum thermodynamics. However, in many practical situations, the effect of the environment cannot be neglected, and the performance of the CD is expected to degrade. To arrive at general bounds on the resulting error of CD in this situation we consider a driven spin-boson model as a prototypical setup. The inequalities we obtain, in terms of either the Bures angle or the fidelity, allow us to estimate the maximum error solely characterized by the parameters of the system and the bath. By utilizing the analytical form of the upper bound, we demonstrate that the error can be systematically reduced through optimization of the external driving protocol of the system. We also show that if we allow a time-dependent system-bath coupling angle, the obtained bound can be saturated and realizes unit fidelity.
description: 7 pages, 2 figures
A Novel Route to Calculate the Length Scale for the Glass Transition in Polymers
Creators: name: Cangialosi, D.
name: Alegria, A.
name: Colmenero, J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The occurrence of glass transition is believed to be associated to cooperative motion with a growing length scale with decreasing temperature. We provide a novel route to calculate the size of cooperatively rearranging regions CRR of glass-forming polymers combining the Adam-Gibbs theory of the glass transition with the self-concentration concept. To do so we explore the dynamics of glass-forming polymers in different environments. The material specific parameter $α$ connecting the size of the CRR to the configurational entropy is obtained in this way. Thereby, the size of CRR can be precisely quantified in absolute values. This size results to be in the range 1 $÷$ 3 nm at the glass transition temperature depending on the glass-forming polymer.
Strategies for cultural maintenance : aboriginal cultural education programs and centres in Canada
Creators: name: Haagen, Claudia Elisabeth J.
Publisher: name: University of British Columbia
Year: 2010

description: This thesis examines the cultural education programs that have been developed over the past two decades by Canada's First Peoples. These programs are designed to strengthen and maintain indigenous cultures by promoting cultural identity and by developing cultural curriculum materials for a broad range of education programs. This thesis gives particular emphasis to cultural education centres and their unique integration of a characteristic set of programs which have been designed to systematically collect, preserve and communicate indigenous cultural knowledge. Despite the effects of more than a century of colonization, and against all expectation. Native cultures have persisted. Native people are now actively communicating a renewed confidence in their own cultures, their values and their ways of doing things. Community-based self-government and the maintenance of a land base are ideologically inseparable from the retention of culture and language, and Native people today view these as integral to their survival and self-determination as distinct peoples within the fabric of the majority society. Cultural education programs and centres perform a significant communication function in the agenda of self-determination by both ensuring and affirming the continuing viability of Native cultures. This thesis explores the ideology of cultural survival and examines its current expression as a program of action directed at the damaging effects of cultural disruption. The background to the emergence of cultural goals is discussed, with reference to their central place in the socio-economic development strategies and education policies developed by Native organizations in the 1970's. A variety of cultural education programs are described with a specific focus on two cultural education centres in British Columbia. Cultural education programs, as they are defined and carried out by various Native agencies, are presented as significant innovations in the definition and management, overall, of cultural heritage. The organizational integration of these programs also represents a significant innovation in the area of community development. In this context, museological themes are explored. Native concepts of culture are contrasted to non-Native concepts of heritage, with particular attention given to some of the problems in the way non-Native museums have traditionally represented Native cultures.
Dynamical instabilities of a resonator driven by a superconducting single-electron transistor
Creators: name: Rodrigues, D. A.
name: Imbers, J.
name: Harvey, T. J.
name: Armour, A. D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate the dynamical instabilities of a resonator coupled to a superconducting single-electron transistor (SSET) tuned to the Josephson quasiparticle (JQP) resonance. Starting from the quantum master equation of the system, we use a standard semiclassical approximation to derive a closed set of mean field equations which describe the average dynamics of the resonator and SSET charge. Using amplitude and phase coordinates for the resonator and assuming that the amplitude changes much more slowly than the phase, we explore the instabilities which arise in the resonator dynamics as a function of coupling to the SSET, detuning from the JQP resonance and the resonator frequency. We find that the locations (in parameter space) and sizes of the limit cycle states predicted by the mean field equations agree well with numerical solutions of the full master equation for sufficiently weak SSET-resonator coupling. The mean field equations also give a good qualitative description of the set of dynamical transitions in the resonator state that occur as the coupling is progressively increased.
description: 23 pages, 6 Figures, Accepted for NJP
Lagartija de turbera – Zootoca vivipara (Lichtenstein, 1823)
Creators: name: Salvador Milla, Alfredo
name: Roig Fernández, Juan Manuel
name: Carretero, Miguel A.
Publisher: name: Salvador Milla, Alfredo
Year: 2014

description: Reptiles - Orden Squamata - Familia Lacertidae en la Enciclopedia Virtual de Vertebrados Españoles, http://www.vertebradosibericos.org/.
description: A comprehensive review of the natural history of the viviparous lizard Zootoca vivipara in Spain.
Locally Suppressed Transverse-Field Protocol for Diabatic Quantum Annealing
Creators: name: Fry-Bouriaux, Louis
name: O'Connor, Daniel
name: Feinstein, Natasha
name: Warburton, Paul A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Diabatic quantum annealing (DQA) is an alternative algorithm to adiabatic quantum annealing (AQA) that can be used to circumvent the exponential slowdown caused by small minima in the annealing energy spectrum. We present the locally suppressed transverse-field (LSTF) protocol, a heuristic method for making stoquastic optimization problems compatible with DQA. We show that, provided an optimization problem intrinsically has magnetic frustration due to inhomogeneous local fields, a target qubit in the problem can always be manipulated to create a double minimum in the energy gap between the ground and first excited states during the evolution of the algorithm. Such a double energy minimum can be exploited to induce diabatic transitions to the first excited state and back to the ground state. In addition to its relevance to classical and quantum algorithmic speed-ups, the LSTF protocol enables DQA proof-of-principle and physics experiments to be performed on existing hardware, provided independent controls exist for the transverse qubit magnetization fields. We discuss the implications on the coherence requirements of the quantum annealing hardware when using the LSTF protocol, considering specifically the cases of relaxation and dephasing. We show that the relaxation rate of a large system can be made to depend only on the target qubit presenting new opportunities for the characterization of the decohering environment in a quantum annealing processor.
description: 18 pages, 16 figures
title: Influence of forest disturbances on summer foraging activity of boreal bats at three spatial scales
Creators: name: Washinger, Darrian P.
Publisher: name: Memorial University of Newfoundland
Year: 2021

description: Bat species worldwide have declined for several reasons, including natural and anthropogenic forest disturbances. In Gros Morne National Park (GMNP), Newfoundland, browsing by hyperabundant moose after insect disturbances has caused conversion of mature forests to open meadows (“moose meadow”, MM). I studied the influences of MM formation in GMNP on bat activity at fine (habitat), intermediate, and broad scales; the first investigation of such impacts by hyperabundant ungulate populations on bat activity. I hypothesized that bat activity would decrease in disturbed areas due to lower insect prey and incompatibility with foraging behaviour. I acoustically monitored bat activity and collected insects in disturbed, regenerating, and mature stand types throughout GMNP at 36 and 63 sites in 2017 and 2018, respectively. I used generalized linear mixed models (GLMMs) to determine significant predictors of bat activity. At the habitat scale, insect prey biomass varied among stand types, but bat activity did not; instead, fine-scale vegetation measurements were the most significant predictors of bat activity. At both the intermediate and broad scales, MM formation was positively associated with bat activity among species-specific responses to other variables. I concluded that MMs positively impacted activity of both species by increasing habitat heterogeneity at the broader landscape scale.
A robust lower limit on the amplitude of matter fluctuations in the universe from cluster abundance and weak lensing
Creators: name: Mandelbaum, Rachel
name: Seljak, Uros
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Cluster abundance measurements are among the most sensitive probes of the amplitude of matter fluctuations in the universe, which in turn can help constrain other cosmological parameters, like the dark energy equation of state or neutrino mass. However, difficulties in calibrating the relation between the cluster observable and halo mass, and the lack of completeness information, make this technique particularly susceptible to systematic errors. Here we argue that a cluster abundance analysis using statistical weak lensing on the stacked clusters leads to a robust lower limit on the amplitude of fluctuations. The method compares the average weak lensing signal measured around the whole cluster sample to a theoretical prediction, assuming that the clusters occupy the centers of all of the most massive halos above some minimum mass threshold. If the amplitude of fluctuations is below a certain limiting value, there are too few massive clusters in this model and the theoretical prediction falls below the observations. Since any effects that modify the model assumptions can only decrease the theoretical prediction, the limiting amplitude becomes a robust lower limit. Here, we apply it to a volume limited sample of 16,000 group/cluster candidates identified from isolated luminous red galaxies (LRGs) in the Sloan Digital Sky Survey (SDSS). We find $σ_8 (Ω_m/0.25)^{0.5}>0.62$ at the 95% c.l. after taking into account observational errors in the lensing analysis. While this is a relatively weak constraint, both the scatter in the LRG luminosity-halo mass relation and the lensing errors are large; the constraints could improve considerably in the future with more sophisticated cluster identification algorithms and smaller errors in the lensing analysis. [Abridged]
description: 10 pages, 5 figures; new version has only very minor revisions to match published version
Spectral isolation of naturally reductive metrics on simple Lie groups
Creators: name: Gordon, Carolyn S.
name: Sutton, Craig J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Differential Geometry (math.DG)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 53C20, 58J50

description: We show that within the class of left-invariant naturally reductive metrics $\mathcal{M}_{\operatorname{Nat}}(G)$ on a compact simple Lie group $G$, every metric is spectrally isolated. We also observe that any collection of isospectral compact symmetric spaces is finite; this follows from a somewhat stronger statement involving only a finite part of the spectrum.
description: 19 pages, new title and abstract, revised introduction, new result demonstrating that any collection of isospectral compact symmetric spaces must be finite, to appear Math Z. (published online Dec. 2009)
title: Lagartija italiana – Podarcis siculus (Rafinesque-Schmalz, 1810)
title: Lagartija italiana – Podarcis sicula (Rafinesque-Schmalz, 1810)
titleType: AlternativeTitle
Creators: name: Salvador Milla, Alfredo
Publisher: name: Salvador Milla, Alfredo
Year: 2015

description: Reptiles - Orden Squamata - Familia Lacertidae en la Enciclopedia Virtual de Vertebrados Españoles, http://www.vertebradosibericos.org/. Versiones anteriores: 5-07-2006; 24-02-2012
description: A comprehensive review of the natural history of the Italian wall lizard Podarcis sicula in Spain.
Additional file 7 of Human placenta mesenchymal stem cell-derived exosomes delay H2O2-induced aging in mouse cholangioids
Creators: name: Chen, Wenyi
name: Zhu, Jiaqi
name: Lin, Feiyan
name: Xu, Yanping
name: Feng, Bing
name: Feng, Xudong
name: Sheng, Xinyu
name: Shi, Xiaowei
name: Pan, Qiaoling
name: Yang, Jinfeng
name: Yu, Jiong
name: Li, Lanjuan
name: Cao, Hongcui
Publisher: name: figshare
Year: 2021
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Biotechnology
subject: Evolutionary Biology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer

description: Additional file 7: Figure S4. Concentration of SASP components and chemokines of organoids culture supernatant. (a) Line graph, mRNA expression fold changes of SASP components at 24, 48, 96 and 120 h in Exo group (two-way ANOVA, mean, n = 4). (b) The fold changes of IL-8 mRNA expression of organoids at 24, 48, 96 and 120 h (ordinary one-way ANOVA, mean ± SD, n = 4); (c) CX3CL1 protein concentration in culture supernatant at 96 h, and 120 h. (d) CXCL2 protein concentration in culture supernatant at 96 h, and 120 h. (e) CXCL15 protein concentration in culture supernatant at 120 h. (f) CXCL16 protein concentration in culture supernatant at 120 h. Data are presented as mean ± SD (ordinary one-way ANOVA, n = 3).
Improved prescription for winding an electromagnet
Creators: name: Crawford, C. B.
name: Straley, Joseph P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: We describe an improvement on the magnetic scalar potential approach to the design of an electromagnet, which incorporates the need to wind the coil as a helix. Any magnetic field that can be described by a magnetic scalar potential is produced with high fidelity within a Target region; all fields are confined within a larger Return. The helical winding only affects the field in the Return.
description: 4 pages, 2 figures
Simulating the dynamics and synchrotron emission from relativistic jets II. Evolution of non-thermal electrons
Creators: name: Mukherjee, Dipanjan
name: Bodo, Gianluigi
name: Rossi, Paola
name: Mignone, Andrea
name: Vaidya, Bhargav
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We have simulated the evolution of non-thermal cosmic ray electrons (CREs) in 3D relativistic magneto hydrodynamic (MHD) jets evolved up to a height of 9 kpc. The CREs have been evolved in space and in energy concurrently with the relativistic jet fluid, duly accounting for radiative losses and acceleration at shocks. We show that jets stable to MHD instabilities show expected trends of regular flow of CREs in the jet spine and acceleration at a hotspot followed by a settling backflow. However, unstable jets create complex shock structures at the jet-head (kink instability), the jet spine-cocoon interface and the cocoon itself (Kelvin-Helmholtz modes). CREs after exiting jet-head undergo further shock crossings in such scenarios and are re-accelerated in the cocoon. CREs with different trajectories in turbulent cocoons have different evolutionary history with different spectral parameters. Thus at the same spatial location, there is mixing of different CRE populations, resulting in a complex total CRE spectrum when averaged over a given area. Cocoons of unstable jets can have an excess build up of energetic electrons due to re-acceleration at turbulence driven shocks and slowed expansion of the decelerated jet. This will add to the non-thermal energy budget of the cocoon.
description: Published in MNRAS. arxiv V1 has 2 updated references
Contexto histórico da educação superior na Bahia
Creators: name: Torres, Henderson Carvalho
name: Mota Júnior, Antônio de Macêdo
Publisher: name: figshare
Year: 2021
Subjects: subject: 130103 Higher Education
subject: FOS: Educational sciences

description: O trabalho aborda o contexto histórico da educação superior no Estado da Bahia, no que diz respeito a sua origem e expansão. Este estudo exploratório-descritivo, utilizando-se da pesquisa bibliográfica e documental para caracterizar o surgimento e a expansão das universidades e de outras instituições de ensino superior no estado baiano. Os resultados evidenciam um atraso histórico na oferta federal de educação superior da Bahia, limitada a capital do Estado dos anos de 1946 a 2002 pela Universidade Federal da Bahia (UFBA), bem como pela iniciativa estratégica de criação do sistema estadual de educação superior, formado por quatro universidades estaduais, a partir da década de 1970 (com surgimento da Universidade Estadual de Feira de Santana, a primeira). Além disso, demonstram que, nos últimos anos, houve significativa expansão da oferta pela iniciativa privada, bem como pela inserção de novas universidades federais no interior do Estado.