cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Characterization of the norepinephrine-activation of adenylate cyclase suggests a role in memory affirmation pathways. Overexposure to epinephrine inactivates adenylate-cyclase,a causal pathway for stress-pathologies
Creators: name: Bennun, Alfred
Publisher: name: arXiv
Year: 2010
Subjects: subject: Other Quantitative Biology (q-bio.OT)
subject: FOS: Biological sciences

description: Incubation with noradrenaline (norepinephrine) of isolated membranes of rat's brain corpus striatum and cortex, showed that ionic-magnesium (Mg2+) is required for the neurotransmitter activatory response of Adenylate Cyclase [ATP pyrophosphate-lyase (cyclizing), (EC 4.6.1.1)], AC.An Mg2+-dependent response to the activatory effects of adrenaline, and subsequent inhibition by calcium, suggest capability for a turnover, associated with cyclic changes in membrane potential and participation in a short term-memory pathway.In the cell, the neurotransmitter by activating AC generates intracellular cyclic AMP. Calcium entrance in the cell inhibits the enzyme. The increment of cyclic AMP activates kinaseA and their protein phosphorylating activity, allowing a long term memory pathway. Hence, consolidating neuronal circuits, related to emotional learning and memory affirmation.The activatory effect relates to an enzyme-noradrenaline complex which may participate on the physiology of the fight or flight response, by prolonged exposure. However, the persistence of an unstable enzyme complex turns the enzyme inactive. Effect concordant, with the observation that prolonged exposure to adrenaline, participate in the etiology of stress triggered pathologies. At the cell physiological level AC responsiveness to hormones could be modulated by the concentration of Chelating Metabolites. These ones produce the release of free ATP4-, a negative modulator of AC and the Mg2+ activated insulin receptor tyrosine kinase (IRTK). Thus, allowing an integration of the hormonal response of both enzymes by ionic controls. This effect could supersede the metabolic feedback control by energy-charge. Accordingly, maximum hormonal response of both enzymes, to high Mg2+ and low free ATP4-, allows a correlation with the known effects of low caloric intake increasing average life expectancy.
description: 14 pages,4 figures,3 tables
LINEHAN, Peter – Historia e Historiadores de la España Medieval. Salamanca: Ediciones Universidade Salamanca, 2012. 784 p. ISBN 978-84-7800-976-3
Creators: name: Jana, Ernesto
Publisher: name: Lusitania Sacra
Year: 2014

description: Lusitania Sacra, n. 29 (2014): Política, Religião e Missão na Modernidade
Energy Scaling of Minimum-Bias Tunes
Creators: name: Schulz, Holger
name: Skands, Peter
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose that the flexibility offered by modern event-generator tuning tools allows for more than just obtaining "best fits" to a collection of data. In particular, we argue that the universality of the underlying physics model can be tested by performing several, mutually independent, optimizations of the generator parameters in different physical regions. For regions in which these optimizations return similar and self-consistent parameter values, the model can be considered universal. Deviations from this behavior can be associated with a breakdown of the modeling, with the nature of the deviations giving clues as to the nature of the breakdown. We apply this procedure to study the energy scaling of a class of minimum-bias models based on multiple parton interactions (MPI) and pT-ordered showers, implemented in the Pythia 6.4 generator. We find that a parameter controlling the strength of color reconnections in the final state is the most important source of non-universality in this model.
description: 17 pages, 3 figures, 4 tables
Sup-norm problem of certain eigenfunctions on arithmetic hyperbolic manifolds
Creators: name: Jana, Subhajit
Publisher: name: University of British Columbia
Year: 2015

description: We prove a power saving over the local bound for the L∞ norm of uniformly non- tempered Hecke-Maass forms on arithmetic hyperbolic manifolds of dimension 4 and 5. We use accidental isomorphism and use the Hecke theory of the correspond- ing groups to show that if the automorphic form is non-tempered at positive density of finite places then the Hecke eigenvalues are large; amplifying the saving coming from the non temperedness we get a power saving.
Opportunities to constrain astrophysical reaction rates for the s-process through determination of the ground state cross sections
Creators: name: Rauscher, T.
name: Mohr, P.
name: Dillmann, I.
name: Plag, R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Modern models of s-process nucleosynthesis in stars require stellar reaction rates with high precision. Most of the neutron capture cross sections in the s-process have been measured and for an increasing number of reactions the required precision is achieved. This does not necessarily mean, however, that the stellar rates are constrained equally well because only capture on the ground state of a target is measured in the laboratory. Captures on excited states can considerably contribute to stellar rates already at typical s-process temperatures. We show that the ground state contribution X to a stellar rate is the relevant measure to identify reactions which are or could be well constrained by experiments and apply it to (n,gamma) reactions in the s-process. It is further shown that the maximally possible reduction in uncertainty of a rate through determination of the g.s. cross section is directly given by X. An error analysis of X is presented and it is found that X is a robust measure with overall small uncertainties. Several specific examples (neutron capture on 79Se, 95Zr, 121Sn, 187Os, and 193Pt) are discussed in detail. The ground state contributions for a set of 411 neutron capture reactions around the s-process path are presented in a table. This allows to identify reactions which may be better constrained by experiments and such which cannot be constrained by only measuring ground state cross sections (and thus require supplementary studies). General trends and implications are discussed.
description: 23 pages (including 1 table + 4 figures), accepted for publication in ApJ (v2: improved discussion, typos and references fixed, accepted version)
Blue sky catastrophe in singularly perturbed systems
Creators: name: Shilnikov, Andrey
name: Shilnikov, Leonid
name: Turaev, Dmitry
Publisher: name: Weierstrass Institute
Year: 2003
Subjects: subject: saddle-node
subject: global bifurcations
subject: stability boundaries
subject: slow-fast system
subject: bursting oscillations
subject: spikes
subject: excitability
subject: 37G15
subject: 34E15
subject: 37C27
subject: 34C26

description: We show that the blue sky catastrophe, which creates a stable periodic orbit whose length increases with no bound, is a typical phenomenon for singularly-perturbed (multi-scale) systems with at least two fast variables. Three distinct mechanisms of this bifurcation are described. We argue that it is behind a transition from periodic spiking to periodic bursting oscillations.
Exact aymptotic expansions for the thermodynamics of hydrogen gas in the Saha regime
Creators: name: Alastuey, Angel
name: Vincent, Ballenegger
Publisher: name: arXiv
Year: 2010
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider the hydrogen quantum plasma in the Saha regime, where it almost reduces to a partially ionized atomic gas. We briefly review the construction of systematic expansions of thermodynamical functions beyond Saha theory, which describes an ideal mixture of ionized protons, ionized electrons and hydrogen atoms in their ground-state. Thanks to the existence of rigorous results, we first identify the simultaneous low-temperature and low-density limit in which Saha theory becomes asymptotically exact. Then, we argue that the screened cluster representation is well suited for calculating corrections, since that formalism accounts for all screening and recombination phenomena at work in a more tractable way than other many-body methods. We sketch the corresponding diagrammatical analysis, which leads to an exact asymptotic expansion for the equation of state. That scaled low-temperature expansion improves the analytical knowledge of the phase diagram. It also provides reliable numerical values over a rather wide range of temperatures and densities, as confirmed by comparisons to quantum Monte Carlo data.
description: 10 pages
Deprojecting the quenching of star formation in and near clusters
Creators: name: Mamon, G. A.
name: Mahajan, S.
name: Raychaudhury, S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Using H_delta and D_n4000 as tracers of recent or ongoing efficient star formation, we analyze the fraction of SDSS galaxies with recent or ongoing efficient star formation (GORES) in the vicinity of 268 clusters. We confirm the well-known segregation of star formation, and using Abel deprojection, we find that the fraction of GORES increases linearly with physical radius and then saturates. Moreover, we find that the fraction of GORES is modulated by the absolute line-of-sight velocity (ALOSV): at all projected radii, higher fractions of GORES are found in higher ALOSV galaxies. We model this velocity modulation of GORES fraction using the particles in a hydrodynamical cosmological simulation, which we classify into virialized, infalling and backsplash according to their position in radial phase space at z=0. Our simplest model, where the GORES fraction is only a function of class does not produce an adequate fit to our observed GORES fraction in projected phase space. On the other hand, assuming that in each class the fraction of GORES rises linearly and then saturates, we are able to find well-fitting 3D models of the fractions of GORES. In our best-fitting models, in comparison with 18% in the virial cone and 13% in the virial sphere, GORES respectively account for 34% and 19% of the infalling and backsplash galaxies, and as much as 11% of the virialized galaxies, possibly as a result of tidally induced star formation from galaxy-galaxy interactions. At the virial radius, the fraction of GORES of the backsplash population is much closer to that of the virialized population than to that of the infalling galaxies. This suggests that the quenching of efficient star formation is nearly complete in a single passage through the cluster.
description: 5 pages, 3 double figures, to appear in "Environment and the Formation of Galaxies: 30 years later", Proceedings of Symposium 2 of JENAM 2010, ed. I. Ferreras & A. Pasquali, ASSP, Springer. Version 2 fixed a bug that caused key words in the Abstract to be invisible in the PS and PDF formats. Also two very minor alterations
8º Workshop de Arquivística «Os arquivos e a construção da memória» (Lisboa, Universidade Católica Portuguesa, 1 de março 2014)
Creators: name: Pocariço, Diogo
name: Pereira, Patrícia Matias
Publisher: name: Lusitania Sacra
Year: 2014

description: Lusitania Sacra, n. 29 (2014): Política, Religião e Missão na Modernidade
We hold these truths to be self-evident : Monumental error: writing wrongs on the Thomas Jefferson Memorial
Creators: name: Parlett, Martin Antony
Publisher: name: University of British Columbia
Year: 2015

description: Detailed analysis of the inscriptions found upon the walls of The Thomas Jefferson Memorial (TJM), in Washington D.C. reveals an astonishing rhetorical secret, hidden in plain sight in the form of one of America’s most visited, and high-profile, national monuments. Upon the marbled interior of this Washingtonian pantheon, brass lettered quotations from Jefferson’s works, epistles, and legislation, purport to communicate an accurate and accessible facsimile version of the third president’s intellect, philosophy, and politics. Comparison of the quinquepartite panels to the original documents authored by Jefferson, however, exposes a systematic and purposeful series of textual and semantic alterations, giving rise to a highly manipulated form of US national history, presidential memorialization, and public understanding. This thesis moves in three parts: 1) to establish the existence and extent of these manipulations; 2) to interrogate the means and agents of Jefferson’s mediation; and 3) to assess the material and symbolic consequence of the TJM’s continued presence in extant form. In so doing, this thesis - informed by rhetorical theory, studies in public memory, and intensive archival research - finds that the inscriptions of the Jefferson Memorial were knowingly edited to function not only as a subjective commemoration of a national political hero, but also as an item of contemporary Progressive propaganda, communicating messages consistently sympathetic to Roosevelt’s New Deal and wartime agendas. Accordingly, the monument becomes an important locus for investigating the specific rhetorical formation and consequence of a single (and highly motivated) public memory space, whilst also providing a replicable case study methodology for a broader derivation of the workings of “technologies of memory” (as defined by Sturken, 1997), as they function at political mnemonic sites in the U.S. and beyond.
Exposição Comemorativa 500 Anos da Misericórdia de Braga
Creators: name: Cultura, Espaço E Memória
name: De Braga, Santa Casa Da Misericórdia
Publisher: name: Lusitania Sacra
Year: 2014

description: Lusitania Sacra, n. 29 (2014): Política, Religião e Missão na Modernidade
Soil carbon stabilization under three reclaimed vegetation types in the Alberta oil sands
Creators: name: Laidlaw, Meghan
Publisher: name: University of British Columbia
Year: 2015

description: Prior to oil sands extraction, mineral soil from local boreal forest is salvaged and stored, together with additional peat obtained from local peatlands, for future reclamation use. The ability of reclaimed soils to stabilize carbon is an important indicator of soil functioning and successful reclamation. The objective of this research was to compare total soil carbon and the distribution of carbon in chemically and physically protected pools between three reclaimed vegetation treatments, and naturally fire-disturbed boreal forest sites. Twenty sites that were reclaimed or disturbed 20 – 40 years ago were chosen, and the top 10 cm of mineral soil was sampled. Density and size fractionation was used to separate soil organic carbon (SOC) into unprotected light fraction C, physically protected C, and chemically protected C. Aggregate size distribution, microbial biomass C, root biomass, and exchangeable cation concentrations were also measured. Reclaimed sites had three times more total SOC than natural sites and similar or greater SOC in physically and chemically protected pools. However, reclaimed sites were also estimated to have reached carbon saturation in chemically protected C pools, and half of the total SOC on average was unprotected, compared to 9 % unprotected C at natural sites. Accumulation of SOC in unprotected pools and C saturation in chemically protected pools at reclaimed sites suggest that further incorporation of SOC into chemically protected pools may be limited, possibly by soil texture (< 3% clay). Almost one third of reclaimed soil C was old, biochemically resistant C, compared to only 10 % at natural sites, and is probably peat that is persisting in reclaimed soils. Within reclaimed vegetation types, grassland sites had the greatest physically and chemically protected C, while deciduous sites had the greatest unprotected C, despite both vegetation types having similar total SOC content. Coniferous sites had the lowest total SOC content, but tended to have more physically and chemically protected C than deciduous sites, and may ultimately surpass grasslands if C accumulation rates continue to increase at these sites.
A guided edge-aware smoothing-sharpening filter based on patch interpolation model and generalized gamma distribution
Creators: name: Deng, Guang
name: Galetto, Fernando
name: Alnasrawi, Mukhalad
name: Waheed, Waseem
Publisher: name: La Trobe
Year: 2023
Subjects: classificationCode: 4006
subject: Communications engineering
classificationCode: 4603
subject: Computer vision and multimedia computation

description: No description supplied
Analog model for quantum gravity effects: phonons in random fluids
Creators: name: Krein, G.
name: Menezes, G.
name: Svaiter, N. F.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We describe an analog model for quantum gravity effects in condensed matter physics. The situation discussed is that of phonons propagating in a fluid with a random velocity wave equation. We consider that there are random fluctuations in the reciprocal of the bulk modulus of the system and study free phonons in the presence of Gaussian colored noise with zero mean. We show that in this model, after performing the random averages over the noise function a free conventional scalar quantum field theory describing free phonons becomes a self-interacting model.
Identification of metastasis-driving genes as potential therapeutic targets/ biomarkers for metastatic prostate cancer
Creators: name: Chiang, Yan Ting
Publisher: name: University of British Columbia
Year: 2015

description: Metastatic prostate cancer is currently incurable. Metastasis is thought to result from changes in the expression of specific metastasis-driving genes, leading to a cascade of activated downstream genes setting the metastatic process in motion. As such, metastasis-driving genes could provide effective therapeutic targets and prognostic biomarkers for improved disease management. In search of potential metastasis-driving genes, genes with elevated expression in patient-derived metastatic LTL-313H prostate cancer tissues, as distinct from non-metastatic LTL-313B tissues, were identified. Among these genes, TIMELESS and DLX1 were promising. Unfortunately, their silencing and overexpression in prostate cancer cells did not lead to inhibition of metastatic properties, indicating that they were not metastasis-driving genes. A different, novel approach was used based on the notion that metastasis-driving genes can activate genes in an amplification cascade fashion. Accordingly, I used the IPA’s Upstream Regulator Analysis tool to analyze the differential gene expression profile of the metastatic and non-metastatic tissues to predict the upstream master regulatory (metastasis-driving) genes accountable for the differential expression. Six candidate genes were identified, including GATA2, a pioneer factor-encoding gene. Elevated GATA2 expression in clinical metastatic prostate cancer specimens correlated with poor patient prognosis. Furthermore, GATA2 gene silencing in human prostate cancer LNCaP cells led to marked reduction in cell proliferation, cell migration, tissue invasion, focal adhesion disassembly and a dramatic change in transcriptional activity, indicating that GATA2 plays a critical role in prostate cancer metastasis. As such, GATA2 could represent a metastasis-driving gene and a potential therapeutic target for inhibiting the growth and metastasis development in prostate cancer. Further analysis of GATA2-regulated genes led to the development of a GATA2-based metastatic gene signature. Its prognostic value was confirmed using two prostate cancer patient cohorts. In addition, it was shown to be a prognostic factor for risk assessment of metastasis development, independent of the widely used D’Amico prognostic classification system. However, a thorough validation is critical and, if successful, the GATA2-based gene signature could lead to a paradigm shift in the management of early prostate cancer. In conclusion, the findings of this study appear to be potentially useful for improved management of metastatic prostate cancer.
Comemoração do 1.º Centenário (1913-2013) do monumento ao Bom Jesus do Monte das Mós (Carvalheira, Terras de Bouro, 8 a 14 de julho de 2013)
Creators: name: Silva, Amaro Carvalho Da
Publisher: name: Lusitania Sacra
Year: 2014

description: Lusitania Sacra, n. 29 (2014): Política, Religião e Missão na Modernidade
Importance of Preprocessing in Histopathology Image Classification Using Deep Convolutional Neural Network
Creators: name: Sengoz, Nilgun
name: Yigit, Tuncay
name: Ozmen, Ozlem
name: Isik, Ali Hakan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: I.4.0; I.4.3
subject: 68T01 (Primary), 68T45 (Secondary)

description: The aim of this study is to propose an alternative and hybrid solution method for diagnosing the disease from histopathology images taken from animals with paratuberculosis and intact intestine. In detail, the hybrid method is based on using both image processing and deep learning for better results. Reliable disease detection from histo-pathology images is known as an open problem in medical image processing and alternative solutions need to be developed. In this context, 520 histopathology images were collected in a joint study with Burdur Mehmet Akif Ersoy University, Faculty of Veterinary Medicine, and Department of Pathology. Manually detecting and interpreting these images requires expertise and a lot of processing time. For this reason, veterinarians, especially newly recruited physicians, have a great need for imaging and computer vision systems in the development of detection and treatment methods for this disease. The proposed solution method in this study is to use the CLAHE method and image processing together. After this preprocessing, the diagnosis is made by classifying a convolutional neural network sup-ported by the VGG-16 architecture. This method uses completely original dataset images. Two types of systems were applied for the evaluation parameters. While the F1 Score was 93% in the method classified without data preprocessing, it was 98% in the method that was preprocessed with the CLAHE method.
description: 6 Pages
Quasi-separatrix layers and three-dimensional reconnection diagnostics for line-tied tearing modes
Creators: name: Richardson, A. S.
name: Finn, J. M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: In three-dimensional magnetic configurations for a plasma in which no closed field line or magnetic null exists, no magnetic reconnection can occur, by the strictest definition of reconnection. A finitely long pinch with line-tied boundary conditions, in which all the magnetic field lines start at one end of the system and proceed to the opposite end, is an example of such a system. Nevertheless, for a long system of this type, the physical behavior in resistive magnetohydrodynamics (MHD) essentially involves reconnection. This has been explained in terms comparing the geometric and tearing widths [1, 2]. The concept of a quasi-separatrix layer[3, 4] was developed for such systems. In this paper we study a model for a line-tied system in which the corresponding periodic system has an unstable tearing mode. We analyze this system in terms of two magnetic field line diagnostics, the squashing factor[3-5] and the electrostatic potential difference used in kinematic reconnection studies[6, 7]. We discuss the physical and geometric significance of these two diagnostics and compare them in the context of discerning tearing-like behavior in line-tied modes. [1] G. L. Delzanno and J. M. Finn. Physics of Plasmas, 15(3):032904, 2008. [2] Y.-M. Huang and E. G. Zweibel. Physics of Plasmas, 16(4):042102, 2009. [3] E. R. Priest and P. Démoulin. J. Geophys. Res., 100(A12):23443-23463, 1995. [4] P. Démoulin, J. C. Henoux, E. R. Priest, and C. H. Mandrini. Astron. Astrophys., 308:643-655, Apr. 1996. [5] V. S. Titov and G. Hornig. Advances in Space Research, 29(7):1087-1092, 2002. [6] Y. Lau and J. M. Finn. The Astrophysical Journal, 350:672-691, Feb. 1990. [7] Y. Lau and J. M. Finn. The Astrophysical Journal, 366:577-591, 1991.
description: 13 pages, 9 figures, Submitted to Commun Nonlinear Sci Numer Simulat
A evolução da igreja de São Lourenço de Carnide: um estudo de caso
Creators: name: Lázaro, João
Publisher: name: Lusitania Sacra
Year: 2014

description: Apresentam-se os resultados de um projeto de recolha e análise de documentação histórica referente à igreja de São Lourenço de Carnide, em Lisboa, e de construção de conhecimento histórico sobre a igreja e a vida religiosa da freguesia de Carnide. É traçado o percurso desta igreja desde a época medieval até ao Estado Novo. São identificados os principais processos de reconstrução do templo, bem como as diversas mudanças de propriedade a que esteve sujeito. São ainda identificados os projetos de reafectação do uso da igreja, planeados já no século XX, entre os quais se encontram uma escola primária e um cinema.
description: Lusitania Sacra, n. 29 (2014): Política, Religião e Missão na Modernidade
Reflectance spectroscopy and imaging spectroscopy of rare earth element-bearing mineral and rock samples
Creators: name: Turner, David James
Publisher: name: University of British Columbia
Year: 2015

description: A significant knowledge gap between the fields of reflectance spectroscopy and rare earth element (REE) mineralogy prompted this research effort. It narrows the knowledge gap through detailed study of thirty three samples representing three important mineral classes: REE fluorocarbonates (bastnaesite, synchysite, and parisite), REE phosphates (monazite, xenotime, and britholite), and REE-bearing silicates (cerite, mosandrite, kainosite, zircon and eudialyte). Reflectance spectroscopy was carried out in the visible to short wave infrared regions (500 nm to 2500 nm) and each sample was characterized using scanning electron microscopy and electron microprobe analysis. Spectral features of these minerals are primarily related to numerous 4f-4f intraconfigurational electronic transitions of trivalent lanthanides (Ln³+), as well as 5f-5f electronic transitions of uranium and vibrational overtones and combinations of CO₃²-, H₂O, PO₄³- and OH- where applicable. In general, the respective spectra of these REE minerals are sufficiently distinct for spectral classifications, and compilation diagrams with representative spectra are given. Broadly speaking, the light REE-enriched minerals are dominated by sharp absorptions related to Nd³+, Sm³+, and Pr³+ with lesser input from Eu³+, whereas heavy REE-enriched minerals are dominated by sharp spectral features related to Er³+, Dy³+ and Yb³+ with lesser input from Nd³+, Tb³+, Ho³+ and Tm³+ depending on their specific concentrations. For those minerals that do not show strong preference for light or heavy REE, a mixed set of absorption patterns is seen. Spectral variability of specific 4f-4f absorptions were substantial between different minerals and these variations are interpreted to be driven by the specific anion coordination at the Ln³+site across various crystal structures. Shifts in wavelength position and relative strengths of related absorptions can be significant enough to be highly relevant for hyperspectral remote sensing. This is especially applicable for REE mineral identification in field-based settings and high spatial resolution imaging spectroscopy. Three themes of ongoing and potential research are discussed: additional REE mineral spectroscopy, exploitation of diagnostic features for REE mineral detection and identification, and REE ore grade estimation. Overall, the research presented in this dissertation sets the foundation for future interpretation and exploitation of reflectance spectra for the REE minerals.
Uniqueness results for the phase retrieval problem of fractional Fourier transforms of variable order
Creators: name: Jaming, Philippe
Publisher: name: arXiv
Year: 2010
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In this paper, we investigate the uniqueness of the phase retrieval problem for the fractional Fourier transform (FrFT) of variable order. This problem occurs naturally in optics and quantum physics. More precisely, we show that if $u$ and $v$ are such that fractional Fourier transforms of order $α$ have same modulus $|F_αu|=|F_αv|$ for some set $τ$ of $α$'s, then $v$ is equal to $u$ up to a constant phase factor. The set $τ$ depends on some extra assumptions either on $u$ or on both $u$ and $v$. Cases considered here are $u$, $v$ of compact support, pulse trains, Hermite functions or linear combinations of translates and dilates of Gaussians. In this last case, the set $τ$ may even be reduced to a single point (i.e. one fractional Fourier transform may suffice for uniqueness in the problem).
The Catholic Kingdom of Ethiopia: Father Manuel de Almeida’s Account of the Imperial Conversion Ceremony
Creators: name: Cohen, Leonardo
Publisher: name: Lusitania Sacra
Year: 2014

description: This article analyzes the detailed account of the conversion ceremony of Emperor Sus nyos to Catholicism, as it was compiled by Father Manuel de Almeida in his book História da Etiópia. At this ceremony, Afonso Mendes, the recently appointed Patriarch of Ethiopia, gave a learned exposition on Church history that championed the authority of Rome above all else. Father Mendes’ speech reveals, beyond all doubt, that he was more interested in expounding upon ecclesiastical history and the various heresies that had shaped the Church’s past than contending with the premises and concerns of his Ethiopian hosts. From the Catholic patriarch’s standpoint, primitive heresy had inevitably tainted the Alexandrine Church. For Emperor Sus nyos, the proceedings on February 11, 1626 were indeed a confirmation ceremony, but they also gave rise to a new version of Ethiopian religious history. This article presents for the first time an English version of this account and the original text in Portuguese accompanied by an introduction and detailed notes.
description: Lusitania Sacra, n. 29 (2014): Política, Religião e Missão na Modernidade
High fidelity quantum gates via dynamical decoupling
Creators: name: West, Jacob R.
name: Lidar, Daniel A.
name: Fong, Bryan H.
name: Gyure, Mark F.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Realizing the theoretical promise of quantum computers will require overcoming decoherence. Here we demonstrate numerically that high fidelity quantum gates are possible within a framework of quantum dynamical decoupling. Orders of magnitude improvement in the fidelities of a universal set of quantum gates, relative to unprotected evolution, is achieved over a broad range of system-environment coupling strengths, using recursively constructed (concatenated) dynamical decoupling pulse sequences.
description: Slightly expanded form of the journal version. Also includes the supplementary material as an appendix
Floating Wind O&M Strategies assessment
Creators: name: Marie-Antoinette Schwarzkopf
name: Borisade, Friedemann
name: Espelage, Jannis
name: Johnston, Eve
name: Vicente, Rubén Durán
name: Muñoz, Sara
name: Hylland, Pal
name: He, Wei
name: Urbano, Joaquín
name: Comas, Francisco Javier
name: Arribas, Andrea
name: Somoano, Miguel
name: Ruano, Sergio Fernandez
name: Aja, Lucía Meneses
name: Guanche, Raul
name: Luis, Álvaro Rodriguez
Publisher: name: Zenodo
Year: 2022
Subjects: Floating Wind
O&M
Workability & Accessibility
Operational Scenarios
OPEX model

description: Advanced O&M scheduling and planning methods, which are adapted from fixed-bottom offshore wind farms, are developed for promising O&M strategies defined in D4.1. Realistic scenarios with differences in vessel requirements, accessibility and maintainability are analyzed in order to assess downtimes, availability and O&M costs considering experiences from existing floating wind farms.
Additional file 2 of Association between triglyceride glucose-body mass index and non-alcoholic fatty liver disease in the non-obese Chinese population with normal blood lipid levels: a secondary analysis based on a prospective cohort study
Creators: name: Li, Yaling
name: Zheng, Rui
name: Li, Jie
name: Feng, Shuyi
name: Wang, Li
name: Huang, Zhiming
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified

description: Additional File 2 Table S2. Comparative analysis of sensitivity before and after imputation.
Integration of remote sensing and spatial conservation prioritization approaches for aiding large-area, multi-jurisdictional biodiversity conservation in Canada’s boreal forest
Creators: name: Powers, Ryan Paul
Publisher: name: University of British Columbia
Year: 2015

description: Remote sensing is an important complementary data source to enable cost effective monitoring and mapping of biodiversity indicators over large extents in a consistent and repeatable manner. As such, remote sensing is capable of supporting the information needs of modern biodiversity conservation efforts. However, a number of critical challenges and opportunities deserve greater attention. The aim of this research is to advance the use of remote sensing and other geospatial techniques for large-area, multi-jurisdictional conservation of Canada’s boreal forest. Outcomes of this dissertation contributed to progress in each of four research themes: (i) assessing biodiversity across broad areas, (ii) identifying areas of high conservation priority (iii) evaluating the efficacy of current and hypothetical reserve networks, and (iv) incorporating future vegetation variability in conservation planning. The overall research findings indicate the tremendous capacity of the Canadian boreal forest to provide suitable areas for conservation investment and demonstrate the usefulness of these coarse-scale approaches for guiding ongoing research aimed at boreal conservation planning. Key findings included: (a) Reserves that were restricted to only intact forest landscapes were less flexible and efficient (more costly), (b) Reserves using accessibility (distance from road and human settlement) as a cost surrogate were able to satisfy a range of conservation targets and compactness levels while remaining remote from human influence, (c) Reserves (≥1000 km2; <10000 km2) were relatively less variable, (d) Climate change impacts (estimated vegetation productivity variability) greatly influences the cost of reserve networks and the amount of area required to meet conservation targets, (e) Conservation of more sites spread across locations with higher variable vegetation probability values, yet low cost (wilderness areas), proved most efficient, and (f) Reserve networks optimized under “current” or “least change (B1)” conditions are unlikely to maintain their current representative targets in 2080
Os teólogos D. Frei Gaspar do Casal (1510-1584) e Frei Francisco Foreiro (c. 1522-1581) e a edição internacional das suas obras
Creators: name: Matos, Manuel Cadafaz De
Publisher: name: Lusitania Sacra
Year: 2014

description: D. Frei Gaspar do Casal, OESA (1510-1584), foi, a par de Frei Francisco Foreiro, um dos religiosos portugueses que mais se distinguiu, numa das fases do Concílio de Trento, nos debates acerca do sacramento da Eucaristia. Uma das obras que deu nesse período uma particular popularidade a este membro da Ordem de S. Agostinho intitulou-se De Coena et Calice Domini, a qual dedicou ao Sumo Pontífice, Pio IV. No presente trabalho, este académico aborda, de igual modo, a perspetiva relacional deste antigo bispo de Leiria com a oficina tipográfica liderada por Ziletti, na cidade de Veneza, onde ele fez dar à estampa alguma das suas mais conhecidas obras teológicas.
description: Lusitania Sacra, n. 29 (2014): Política, Religião e Missão na Modernidade
Emission lines in early-type galaxies: active nuclei or stars?
Creators: name: Capetti, Alessandro
name: Baldi, Ranieri D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We selected 27244 nearby, red, giant early-type galaxies (RGEs) from the Sloan Digital Sky Survey (SDSS). In a large fraction (53%) of their spectra the [O III] emission line is detected, with an equivalent width (EW) distribution strongly clustered around ~0.75 A. The vast majority of those RGEs for which it is possible to derive emission line ratios (amounting to about half of the sample) show values characteristic of LINERs. The close connection between emission lines and stellar continuum points to stellar processes as the most likely source of the bulk of the ionizing photons in RGEs, rather than active nuclei. In particular, the observed EW and optical line ratios are consistent with the predictions of models in which the photoionization comes from to hot evolved stars. Shocks driven by supernovae or stellar ejecta might also contribute to the ionization budget. A minority, ~4%, of the galaxies show emission lines with an equivalent that is width a factor of ~2 greater than the sample median. Only among them are Seyfert-like spectra found. Furthermore, 40% of this subgroup have a radio counterpart, compared to ~6% of the rest of the sample. These characteristics argue in favor of an AGN origin for their emission lines. Emission lines diagnostic diagrams do not reveal a distinction between the AGN subset and the other members of the sample, and consequently they are not a useful tool for establishing the dominant source of the ionizing photons, which is better predicted by the EW of the emission lines.
description: Accepted for publication in A&A
Catolicismo de la independencia y emergencia del Liberalismo: México, 1810-1821
Creators: name: Ugarte, Marta Eugenia García
Publisher: name: Lusitania Sacra
Year: 2014

description: La invasión de Francia a España en 1808 y la abdicación de la familia real a favor de Napoleón situó a la población novohispana en una disyuntiva: defender los derechos de Fernando VII, como postulaban los peninsulares, o defender el derecho del pueblo soberano de escoger sus autoridades, como afirmaban los criollos. La multiplicación de las conspiraciones criollas y la fuerza del poder y de las armas desembocaran en la lucha por la independencia. La presencia e intervención del clero a lo largo del proceso independentista, de 1810 a 1821, formó un pensamiento moderno en lo político, pero tradicional en su concepción social y cultural. La tradición católica, sembrada con la cruz y la espada, marcó a la sociedad mexicana con un carácter tradicional difícil de erradicar.
description: Lusitania Sacra, n. 29 (2014): Política, Religião e Missão na Modernidade
Advances in meta-algorithmic software libraries for distributed automated algorithm configuration
Creators: name: Ramage, Stephen Edward Andrew
Publisher: name: University of British Columbia
Year: 2015

description: A meta-algorithmic procedure is a computer procedure that operates upon another algorithm and its associated design space to produce another algorithm with desirable properties (e.g., faster runtime, better solution quality, ...; see e.g., Hoos [2008]). Many meta-algorithmic procedures have runtimes that are dominated by the runtime of the algorithm being operated on. This holds in particular for automatic algorithm configurators, such as ParamILS, SMAC, and GGA, which serve to optimize the design (expressed through user settable parameters) of an algorithm under certain use cases. Consequently, one can gain improved performance of the meta-algorithm if evaluations of the algorithm under study can be done in parallel. In this thesis, we explore a distributed version of the automatic configurator, SMAC, called pSMAC, and the library, AEATK, that it was built upon, which has proved general and versatile enough to support many other meta-algorithmic procedures.
A Coroa e o Estado da Índia nos reinados de D. Sebastião e D. Henrique: política ou políticas?
Creators: name: Vila-Santa, Nuno
Publisher: name: Lusitania Sacra
Year: 2014

description: O presente artigo pretende detalhar qual a política ou políticas seguidas pela Coroa para o Estado da Índia durante os reinados de D. Sebastião e D. Henrique. Entrecruzando os contextos políticos, sociais e militares, do Reino e da Ásia, da nomeação dos vice-reis e governadores da Índia daquele período com a principal correspondência endereçada pela Coroa para o Oriente, torna-se possível responder a algumas questões: Em que medida os reinados dos últimos Avis prosseguiram as tendências herdadas do reinado de D. João III? Existem pontos de contacto nas políticas destes monarcas com as conhecidas para o período filipino? Detalhando as políticas seguidas pela Coroa durante o período das regências na menoridade de D. Sebastião, considerando as alterações que se seguiram com o governo sebástico e considerando ainda a política seguida no efémero reinado de D. Henrique, pretende-se ainda perceber os motivos do conhecido fracasso do reformismo sebástico.
description: Lusitania Sacra, n. 29 (2014): Política, Religião e Missão na Modernidade
Un projet d’évangélisation toujours ajourné (Madagascar, 1508-1589)
Creators: name: Vicente, Manuel Alberto Carvalho
Publisher: name: Lusitania Sacra
Year: 2014

description: L’un des capitaines de la flotte de Pedro Álvares Cabral, séparé de ses compagnons par une tempête dans les parages du cap de Bonne-Espérance, longea une partie de la côte orientale de l’île de Madagascar, qu’il aperçut le 10 août 1500 (jour de la fête de Saint-Laurent), et qu’il baptisa ainsi en l’honneur du saint. Ensuite, d’autres navires de la Carreira da Índia explorèrent cette île ou firent naufrage sur leurs côtes. D. Manuel Ier du Portugal crut un moment que Madagascar pourrait devenir une « Nouvelle Inde » mais, peu à peu, une vision plus réaliste s’imposa. Cette étude essaye de situer le premier projet d’évangélisation des Malgaches (1508-1589) dans le contexte des intérêts portugais de la Carreira da Índia et de l’Estado da Índia.
description: Lusitania Sacra, n. 29 (2014): Política, Religião e Missão na Modernidade
title: Adaptive Optics system-box for the QKD transportable ground station at IAC
Creators: name: Torras, Joan
name: Socas, Jorge
name: Rodriguez, Luis Fernando
name: Montilla, Iciar
name: Oscoz, Alex
name: Alonso, Angel
name: Reyes, Elena
name: Maroquin, Serena
name: Martinez, Noelia
Publisher: name: Proceedings of AO4ELT7 conference 2023 - Editors: Thierry Fusco and Benoit Neichel
Year: 2023
Subjects: TRANSPORTABLE OPTICAL GROUND STATION
ADAPTIVE OPTICS
LASERCOMS
SINGLE MODE FIBER COUPLING
PLENOPTIC WAVEFRONT SENSING

description: Free space optical communications implementing QKD protocols demand sensors with very high signal to noiseratio, compatible with the reduced size of a single-mode fiber core. The use of adaptive optics allows highdata throughput links, by correcting the aberrations generated by atmospheric turbulence. In this paper wepresent the design of an adaptive optics (AO) system-box to correct for daytime and nightime atmosphericturbulence. The system will be small enough to be implemented at the Nasmyth focus of a transmitter/receiver70cm-aperture telescope used as a Transportable Optical Ground Station in urban sites or LEO links scenariosor in the OGS at Teide Observatory 1 meter-aperture telescope. The setup will correct for aberrations basedon a plenoptic wavefront sensor camera. The optical performance of the system will be analysed, together withsimulations of turbulence to estimate the increase on the coupling from free-space to SMF
"I spent my whole life just walking around, trying to find a place to sleep" : describing the experience of youth hidden homelessness
Creators: name: Gausvik, Carol Alynn
Publisher: name: University of British Columbia
Year: 2015

description: Hidden homelessness is insecurity of tenure or temporary habitation. This can include couch surfing, living in transitional housing, sub-letting, sleeping in vehicles, staying in motels, or staying in places not fit for human habitation. Hidden homelessness is not well understood as it is by nature hidden from researchers, policy-makers, service providers, and the general public. Youth in particular are vulnerable to this type of homelessness. Homelessness puts people at risk for increased health concerns, both physical and mental. It is well known that homelessness costs the social welfare system in terms of emergency, mental health, and correctional service use. While this knowledge is used in addressing street homelessness, less is known about the connection between hidden homelessness and its impacts on these services. To address this knowledge gap, this study sought to answer the question: How do young people who are currently or have previously experienced hidden homelessness describe that experience? This paper reports findings from interviews with six participants who were or are experiencing hidden homelessness. Participants reported experiences of stress, difficulty in school/work, and the need to remain hidden. Implications for social work practice are discussed.