cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Interstellar scintillation and polarization of PSR B0656+14 in the Monogem Ring
Creators: name: Yao, Jumei
name: Coles, William A.
name: Manchester, Richard N.
name: Stinebring, Daniel R.
name: Kramer, Michael
name: Wang, Na
name: Li, Di
name: Zhu, Weiwei
name: Feng, Yi
name: Yuan, Jianping
name: Wang, Pei
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: High sensitivity interstellar scintillation and polarization observations of PSR~B0656+14 made at three epochs over a year using the Five-hundred-meter Aperture Spherical radio Telescope (FAST) show that the scattering is dominated by two different compact regions. We identify the one nearer to the pulsar with the shell of the Monogem Ring, thereby confirming the association. The other is probably associated with the Local Bubble. We find that the observed position angles of the pulsar spin axis and the space velocity are significantly different, with a separation of $19\fdg3\pm$0\fdg8, inconsistent with a previously published near-perfect alignment of $1\degr\pm 2\degr$. The two independent scattering regions are clearly defined in the secondary spectra which show two strong forward parabolic arcs. The arc curvatures imply that the scattering screens corresponding to the outer and inner arcs are located approximately 28~pc from PSR B0656+14 and 185~pc from the Earth, respectively. Comparison of the observed Doppler profiles with electromagnetic simulations shows that both scattering regions are mildly anisotropic. For the outer arc, we estimate the anisotropy $A_R$ to be approximately 1.3, with the scattering irregularities aligned parallel to the pulsar velocity. For the outer arc, we compare the observed delay profiles with delay profiles computed from a theoretical strong-scattering model. Our results suggest that the spatial spectrum of the scattering irregularities in the Monogem Ring is flatter than Kolmogorov, but further observations are required to confirm this.
description: 21 pages, 11 figures, accepted for publication in the Astronomical Journal
Development of a Performance Management System Artifact Based on Business Intelligence for SMEs: A Design Science Research Methodology Approach
Creators: name: Seifollahi, Mohammadreza
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2022
Subjects: Performance Measurements
Performance Management
Design Science Methodology
PMS
PMMS
PMS-BI
Business Intelligence
Business Analytics
BI
BA

description: Although interest in Performance Measurement and Management Systems (PMMS) and their application in various organizations has grown substantially, they are mainly developed for larger companies, and practitioners find it challenging to implement these systems in Small and Medium-sized Enterprises (SMEs). SME characteristics such as limited budget, lack of experience and knowledge, and pace of change usually make it difficult for managers to adopt and use traditional PMMS. One of the solutions to the lack of applicability of PMMS in the SME context is provided by integrating traditional PMMS with Business Intelligence (BI) and Business Analytics (BA) tools and technologies. The main goal of this thesis is to design and evaluate a Performance Management System based on Business Intelligence (PMS-BI) artifact that contains frameworks, architectures, tools and guidelines to help SMEs evaluate their current Performance Management System (PMS), select the most suitable PMS-BI system components, and design their own PMS based on BI. This artifact also guides them throughout the year by providing tools to assess their PMS-BI and maintain it. For this thesis, I applied a Design Science Research (DSR) methodology to collect the relevant information needed in the design step, design and develop the artifact, and evaluate it. I used the case study approach in the design's information collection and artifact evaluation phases. The final artifact consists of an executive document that guides the SME managers to design their own PMS-BI and helps them have a perception of its efficiency. In the data collection phase, I systematically reviewed the relevant literature to understand best practices, then interviewed eleven participants from seven SMEs to find out the gaps and requirements regarding PMS in SMEs. These participants are directly responsible for the PMS in their organization. Then by combining this information, I extracted the PMS-BI features. In the creative process of system design, I used these features to develop the artifact. Then, I presented the results to the same participants in the form of an executive summary. Finally, I used a “usability questionnaire” to understand participants' opinions about the artifact and document their feedback. My research fills the gap in the application of DSR in the PMS artifact development. This thesis helps researchers understand the application of DSR in designing and developing PMS artifacts for SMEs. In addition, the final artifact can be used by SMEs to develop and apply their own PMS-BI.
Long-Term Stability of Short-Term Intensive Language–Action Therapy in Chronic Aphasia: A 1–2 year Follow-Up Study
Creators: name: Doppelbauer, Lea
name: Mohr, Bettina
name: Dreyer, Felix R.
name: Stahl, Benjamin
name: Büscher, Verena
name: Pulvermüller, Friedemann
Publisher: name: Freie Universität Berlin
Year: 2021
Subjects: subject: aphasia
subject: rehabilitation
subject: speech therapy
subject: intensive language–action therapy
subject: 400 Sprache::410 Linguistik::410 Linguistik

description: Background. Intensive aphasia therapy can improve language functions in chronic aphasia over a short therapy interval of 2–4 weeks. For one intensive method, intensive language–action therapy, beneficial effects are well documented by a range of randomized controlled trials. However, it is unclear to date whether therapy-related improvements are maintained over years. Objective. The current study aimed at investigating long-term stability of ILAT treatment effects over circa 1–2 years (8–30 months). Methods. 38 patients with chronic aphasia participated in ILAT and were re-assessed at a follow-up assessment 8–30 months after treatment, which had been delivered 6–12.5 hours per week for 2–4 weeks. Results. A standardized clinical aphasia battery, the Aachen Aphasia Test, revealed significant improvements with ILAT that were maintained for up to 2.5 years. Improvements were relatively better preserved in comparatively young patients (<60 years). Measures of communicative efficacy confirmed improvements during intensive therapy but showed inconsistent long-term stability effects. Conclusions. The present data indicate that gains resulting from intensive speech–language therapy with ILAT are maintained up to 2.5 years after the end of treatment. We discuss this novel finding in light of a possible move from sparse to intensive therapy regimes in clinical practice.
A Multimode Hybrid Memristor-CMOS Prototyping Platform Supporting Digital and Analog Projects
Creators: name: Harabi, Kamel-Eddine
name: Turck, Clement
name: Drouhin, Marie
name: Renaudineau, Adrien
name: Bersani--Veroni, Thomas
name: Querlioz, Damien
name: Hirtzlin, Tifenn
name: Vianello, Elisa
name: Bocquet, Marc
name: Portal, Jean-Michel
Publisher: name: arXiv
Year: 2023
Subjects: subject: Emerging Technologies (cs.ET)
subject: FOS: Computer and information sciences

description: We present an integrated circuit fabricated in a process co-integrating CMOS and hafnium-oxide memristor technology, which provides a prototyping platform for projects involving memristors. Our circuit includes the periphery circuitry for using memristors within digital circuits, as well as an analog mode with direct access to memristors. The platform allows optimizing the conditions for reading and writing memristors, as well as developing and testing innovative memristor-based neuromorphic concepts.
Evaluation of Output Embeddings for Fine-Grained Image Classification
Creators: name: Akata, Zeynep
name: Reed, Scott
name: Walter, Daniel
name: Lee, Honglak
name: Schiele, Bernt
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Image classification has advanced significantly in recent years with the availability of large-scale image sets. However, fine-grained classification remains a major challenge due to the annotation cost of large numbers of fine-grained categories. This project shows that compelling classification performance can be achieved on such categories even without labeled training data. Given image and class embeddings, we learn a compatibility function such that matching embeddings are assigned a higher score than mismatching ones; zero-shot classification of an image proceeds by finding the label yielding the highest joint compatibility score. We use state-of-the-art image features and focus on different supervised attributes and unsupervised output embeddings either derived from hierarchies or learned from unlabeled text corpora. We establish a substantially improved state-of-the-art on the Animals with Attributes and Caltech-UCSD Birds datasets. Most encouragingly, we demonstrate that purely unsupervised output embeddings (learned from Wikipedia and improved with fine-grained text) achieve compelling results, even outperforming the previous supervised state-of-the-art. By combining different output embeddings, we further improve results.
description: @inproceedings {ARWLS15, title = {Evaluation of Output Embeddings for Fine-Grained Image Classification}, booktitle = {IEEE Computer Vision and Pattern Recognition}, year = {2015}, author = {Zeynep Akata and Scott Reed and Daniel Walter and Honglak Lee and Bernt Schiele} }
Fourth Moments and Independent Component Analysis
Creators: name: Miettinen, Jari
name: Taskinen, Sara
name: Nordhausen, Klaus
name: Oja, Hannu
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: In independent component analysis it is assumed that the components of the observed random vector are linear combinations of latent independent random variables, and the aim is then to find an estimate for a transformation matrix back to these independent components. In the engineering literature, there are several traditional estimation procedures based on the use of fourth moments, such as FOBI (fourth order blind identification), JADE (joint approximate diagonalization of eigenmatrices), and FastICA, but the statistical properties of these estimates are not well known. In this paper various independent component functionals based on the fourth moments are discussed in detail, starting with the corresponding optimization problems, deriving the estimating equations and estimation algorithms, and finding asymptotic statistical properties of the estimates. Comparisons of the asymptotic variances of the estimates in wide independent component models show that in most cases JADE and the symmetric version of FastICA perform better than their competitors.
description: Published at http://dx.doi.org/10.1214/15-STS520 in the Statistical Science (http://www.imstat.org/sts/) by the Institute of Mathematical Statistics (http://www.imstat.org)
PREVALÊNCIA DO ANALFABETISMO EM PACIENTES COM DOENÇA DE ALZHEIMER EM UMA UBS DE SÃO PAULO
Creators: name: Jerusa Costa Dos Santos
name: Thaynara Silva Dos Anjos
name: Katyucia Oliveira Crispim De Souza
name: Oliveira, Larayne Gallo Farias
name: Geraldo, Daniela Cristina
name: Granj, Gabriela Ferreira
name: Lislaine Aparecida Fracolli
Publisher: name: Zenodo
Year: 2022

description: ANAIS DO III CONGRESSO NORTE-NORDESTE DE SAÚDE PÚBLICA (ONLINE) 615 RESUMO
 Introdução: A melhoria das condições de saúde da população nas últimas décadas,
 vêm colaborando para o aumento da longevidade humana e elevando a prevalência das
 síndromes demenciais pelo mundo. A Demência é uma doença neurodegenerativa que
 afeta a memória, o pensamento, o comportamento e as emoções, sendo a Doença de
 Alzheimer a demência mais comum no mundo. Segundo publicação do Relatório Alzheimer
 pelo mundo 2021, um baixo nível de escolaridade na infância é um dos fatores de risco
 mais significativos para demência. Atualmente a comorbidade ocupa o sétimo lugar nas
 causas de morte global, esses dados expressam a urgente necessidade de se conhecer os
 fatores de risco, incluindo a relação da baixa escolaridade com a doença. Objetivo: Relatar
 a prevalência do analfabetismo em pacientes com Doença de Alzheimer. Metodologia:
 Trata-se de estudo transversal com dados secundários, obtidos através da análise de
 prontuários de pacientes com diagnóstico de Doença de Alzheimer no período de 2015 a
 2021, em território de equipe de Estratégia Saúde da Família na Zona Sul de São Paulo.
 Foram selecionados 11 prontuários de pacientes onde havia descrição do diagnóstico da
 doença. Foram excluídos do estudo pacientes com quadro clínico demencial, mas não
 especificados como Doença de Alzheimer. Resultados: Dos 11 prontuários analisados, 8
 (72,8%) eram de mulheres e 3(27,2%) eram de homens. A idade do diagnóstico da doença
 se deu entre 59 a 86 anos, com maior prevalência na faixa etária de 70 a 80 anos. Segundo
 estimativa da prevalência de Demência, o risco do acometimento aumenta com a idade,
 sendo mais frequente em mulheres. Quanto ao grau de instrução, cerca de 54,6% dos
 pacientes eram analfabetos, o que confirma a relação do baixo nível de escolaridade com
 a Doença de Alzheimer. Conclusão: Os indícios da relação entre baixo nível de instrução
 e a DA, além do crescimento progressivo da doença e a ausência de um tratamento eficaz,
 ressalta a urgente necessidade de políticas públicas voltadas à prevenção de fatores de
 risco modificáveis, com garantias de educação de qualidade, especialmente nos primeiros anos de vida.
 Palavras-Chave: Envelhecimento. Nível de instrução. Demência
 ÁREA TEMÁTICA: Epidemiologia.
Tracing the Giant Outer Halo of the Mysterious Massive Disk Galaxy M104 I. Photometry of the Extended Globular Cluster Systems
Creators: name: Kang, Jisu
name: Lee, Myung Gyoon
name: Jang, In Sung
name: Ko, Youkyung
name: Sohn, Jubee
name: Hwang, Narae
name: Park, Byeong-Gon
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: M104 (NGC 4594, the Sombrero galaxy) is a mysterious massive early-type galaxy that shows a dominant bulge and a prominent disk. However, the presence of a halo in M104 has been elusive, and it is not yet known how M104 has acquired such a peculiar structure. Using wide ($\sim2$ deg$^2$) and deep $ugi$ images of M104 obtained with the CFHT/MegaCam, we detect a large number of globular clusters (GCs) found out to $R\approx35'$ ($\sim100$ kpc). The color distribution of these GCs shows two subpopulations: a blue (metal-poor) system and a red (metal-rich) system. The total number of GCs is estimated to be $N_{GC}=1610\pm30$ and the specific frequency to be $S_{N}=1.8\pm0.1$. The radial number density profile of the GCs is steep in the inner region at $R<20'$, and becomes shallow in the outer region at $20'
description: Accepted for publication in ApJ, 19 pages, 13 figures, 7 tables
Prospects for Delensing the Cosmic Microwave Background for Studying Inflation
Creators: name: Simard, Gabrielle
name: Hanson, Duncan
name: Holder, Gil
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: A detection of excess cosmic microwave background (CMB) B-mode polarization on large scales allows the possibility of measuring not only the amplitude of these fluctuations but also their scale dependence, which can be parametrized as the tensor tilt $n_T$. Measurements of this scale dependence will be hindered by the secondary B-mode polarization anisotropy induced by gravitational lensing. Fortunately, these contaminating B modes can be estimated and removed with a sufficiently good estimate of the intervening gravitational potential and a good map of CMB E-mode polarization. We present forecasts for how well these gravitational lensing B modes can be removed, assuming that the lensing potential can be estimated either internally from CMB data or using maps of the cosmic infrared background (CIB) as a tracer. We find that CIB maps are as effective as CMB maps for delensing at the noise levels of the current generation of CMB experiments, while the CMB maps themselves will ultimately be best for delensing at polarization noise below $Δ_P$=1 $μ$K-arcmin. At this sensitivity level, CMB delensing will be able to measure $n_T$ to an accuracy of 0.02 or better, which corresponds to the tensor tilt predicted by the consistency relation for single-field slow-roll models of inflation with $r=0.2$. However, CIB-based delensing will not be sufficient for constraining $n_T$ in simple inflationary models.
description: 6 pages, 3 figures; minor corrections to the text, references added to match published version
Modification of the radioactive heat budget of Earth-like exoplanets by the loss of primordial atmospheres
Creators: name: Erkaev, N.
name: Scherf, M.
name: Herbort, O.
name: Lammer, H.
name: Odert, P.
name: Kubyshkina, D.
name: Leitzinger, M.
name: Woitke, P.
name: O'Neill, C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Geophysics (physics.geo-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: The initial abundance of radioactive heat producing isotopes in the interior of a terrestrial planet are important drivers of its thermal evolution and the related tectonics and possible evolution to an Earth-like habitat. The moderately volatile element K can be outgassed from a magma ocean into H$_2$-dominated primordial atmospheres of protoplanets with assumed masses between 0.55-1.0$ M_{\rm Earth}$ at the time when the gas disk evaporated. We estimate this outgassing and let these planets grow through impacts of depleted and non-depleted material that resembles the same $^{40}$K abundance of average carbonaceous chondrites until the growing protoplanets reach 1.0 $M_{\rm Earth}$. We examine different atmospheric compositions and, as a function of pressure and temperature, calculate the proportion of K by Gibbs Free Energy minimisation using the GGChem code. We find that for H$_2$-envelopes and for magma ocean surface temperatures that are $\ge$ 2500 K, no K condensates are thermally stable, so that outgassed $^{40}$K can populate the atmosphere to a great extent. However, due to magma ocean turn-over time and the limited diffusion of $^{40}$K into the upper atmosphere, from the entire $^{40}$K in the magma ocean only a fraction may be available for escaping into space. The escape rates of the primordial atmospheres and the dragged $^{40}$K are further simulated for different stellar EUV-activities with a multispecies hydrodynamic upper atmosphere evolution model. Our results lead to different abundances of heat producing elements within the fully grown planets which may give rise to different thermal and tectonic histories of terrestrial planets and their habitability conditions.
description: 22 pages, 11 figures. This is a preprint of a 2nd revision submitted to MNRAS
Nowe i rzadkie prostoskrzydłe (Orthoptera) wykazane w latach 2019-2023 w okolicach Pleszewa (Nizina Wielkopolsko-Kujawska)
Creators: name: Przemysław Żurawlew
Publisher: name: Zenodo
Year: 2023

description: New and rare grasshoppers and crickets (Orthoptera) recorded in 2019-2023 near Pleszew (Wielkopolsko-Kujawska Lowland).
The paper presents information on new and rare Orthoptera species found in the Pleszew area in 2019-2023. Six species were recorded for the first time: Meconema meridionale, Tettigonia cantans, Metrioptera brachyptera, Pholidoptera griseoaptera, Eumodicogryllus bordigalensis and Calliptamus italicus.
On the Galois module structure of the square root of the inverse different in abelian extensions
Creators: name: Cindy
name: Tsang
Publisher: name: arXiv
Year: 2014
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: Let $K$ be a number field with ring of integers $\mathcal{O}_K$ and $G$ a finite group of odd order. If $K_h$ is a weakly ramified $G$-Galois $K$-algebra, then its square root $A_h$ of the inverse different is a locally free $\mathcal{O}_{K}G$-module and hence determines a class in the locally free class group $\mbox{Cl}(\mathcal{O}_KG)$ of $\mathcal{O}_KG$. We show that for $G$ abelian and under suitable assumptions, the set of all such classes is a subgroup of $\mbox{Cl}(\mathcal{O}_KG)$.
description: version 3; we improved the statements of the theorems and simplified their proofs significantly
Tensors, BICEP2, prior dependence, and dust
Creators: name: Cortês, Marina
name: Liddle, Andrew R.
name: Parkinson, David
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the prior dependence on the inferred spectrum of primordial tensor perturbations, in light of recent results from BICEP2 and taking into account a possible dust contribution to polarized anisotropies. We highlight an optimized parameterization of the tensor power spectrum, and adoption of a logarithmic prior on its amplitude $A_T$, leading to results that transform more evenly under change of pivot scale. In the absence of foregrounds the tension between the results of BICEP2 and Planck drives the tensor spectral index $n_T$ to be blue-tilted in a joint analysis, which would be in contradiction to the standard inflation prediction ($n_T<0$). When foregrounds are accounted for, the BICEP2 results no longer require non-standard inflationary parameter regions. We present limits on primordial $A_T$ and $n_T$, adopting foreground scenarios put forward by Mortonson & Seljak and motivated by Planck 353 GHz observations, and assess what dust contribution leaves a detectable cosmological signal. We find that if there is sufficient dust for the signal to be compatible with standard inflation, then the primordial signal is too weak to be robustly detected by BICEP2 if Planck+WMAP upper limits from temperature and E-mode polarization are correct.
description: 10 pages, 9 figures. v3, minor update to match journal accepted version
Determination of Elastic Parameters of Lipid Membranes with Molecular Dynamics: A Review of Approaches and Theoretical Aspects
Creators: name: Pinigin, Konstantin V.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Lipid membranes are abundant in living organisms, where they constitute a surrounding shell for cells and their organelles. There are many circumstances in which the deformations of lipid membranes are involved in living cells: fusion and fission, membrane-mediated interaction between membrane inclusions, lipid-protein interaction, formation of pores, etc. In all of these cases, elastic parameters of lipid membranes are important for the description of membrane deformations, as these parameters determine energy barriers and characteristic times of membrane-involved phenomena. Since the development of molecular dynamics (MD), a variety of in silico methods have been proposed for the determination of elastic parameters of simulated lipid membranes. These MD methods allow for the consideration of details unattainable in experimental techniques and represent a distinct scientific field, which is rapidly developing. This work provides a review of these MD approaches with a focus on theoretical aspects. Two main challenges are identified: (i) the ambiguity in the transition from the continuum description of elastic theories to the discrete representation of MD simulations, and (ii) the determination of intrinsic elastic parameters of lipid mixtures, which is complicated due to the composition-curvature coupling effect.
title: Reconstructing Summer Temperatures in the Southwestern US Over the Last Five Millennia
title: Effects on Prehispanic Farmers and the Spread of Maize Farming
titleType: Subtitle
Creators: name: Gillreath-Brown, Andrew
Publisher: name: Washington State University
Year: 2024
Subjects: Climate
ENSO
Maize
Neolithic Demographic Transition
US Southwest
Agriculture

description: The Neolithic Demographic Transition (NDT) was a consequential demographic shift in human history, providing the prologue for widespread appearance of pervasive social inequality and the rise of the state. I develop a low-frequency (multi-decadal to millennial-scale) temperature reconstruction for the southwestern United States (SWUS) for the last 5,000 years, where temperature was modulated by ENSO phase and intensity. Further, I show how this temperature record, and an ENSO record that can be inferred from it, affected the rate of uptake and intensity of maize farming. Depending on the phase, ENSO contributes to cooler-wetter conditions (El Niño) or warmer-drier conditions (La Niña). Maize was domesticated in Mexico and arrives in southern Arizona around 3600 BC—a few thousand years prior to the NDT. However, maize does not move quickly north from Arizona, but rather arrives in New Mexico around 2300 BC. Temperature, ENSO, and adaptational constraints affected the rate at which maize moved north. Maize dependence increases substantially in southeastern Utah during Basketmaker II (500 BC – AD 500). The slow movement north from the southern SWUS is due to latitudinal constraints. Maize was under selective pressure to reduce time to flowering under the novel day-length and cooler temperature regimes encountered as it moved north and often up in elevation. The ability to grow maize in cooler conditions expanded where people could live and farm, contributing to major increases in population sizes and densities (the NDT). As a result, people navigated an increasingly complicated landscape in new ways. Tattooing was one way that people showed group affiliation, helping to negotiate relationships between individuals during the NDT. The temperature and ENSO reconstruction suggest that conditions were favorable for maize production and population expansion during the first millennium AD, when El Niño-like conditions prevailed, but turned less favorable in the second millennium AD under the influence of La Niña-like conditions, contributing to the demise of the Chacoan regional system and depopulation of the northern Southwest. I bring together a variety of methods and information through computational and reproducible approaches and a suite of other tools to better understand coupled human and natural systems.
Buenas Prácticas en los Procesos Editoriales de Revistas Científicas para LILACS (2021) - Sesión VII - "Directrices para la Revisión por Pares"
Creators: name: BIREME/OPS/OMS
name: Garcia, Leila Posenato
Publisher: name: Zenodo
Year: 2021
Subjects: buenas prácticas
ciencia aberta
LILACS
editores LILACS
revistas LILACS
buenas prácticas editoriales

description: • Sesión 07 | 15 de septiembre de 2021 • Tema: "Directrices para la revisión por pares" • Ponente: Drª Leila Posenato Garcia Más informaciones → https://bit.ly/buenaspracticaslilacs2021
On the relationship of continuity and boundary regularity in PMC Dirichlet problems
Creators: name: Lancaster, Kirk
name: Melin, Jaron
Publisher: name: arXiv
Year: 2014
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: Primary 35J93, 76B45, Secondary 35J62, 53A10

description: In 1976, Leon Simon showed that if a compact subset of the boundary of a domain is smooth and has negative mean curvature, then the non-parametric least area problem with Lipschitz continuous Dirichlet boundary data has a generalized solution which is continuous on the union of the domain and this compact subset of the boundary, even if the generalized solution does not take on the prescribed boundary data. Simon's result has been extended to boundary value problems for prescribed mean curvature equations by other authors. In this note, we construct Dirichlet problems in domains with corners and demonstrate that the variational solutions of these Dirichlet problems are discontinuous at the corner, showing that Simon's assumption of regularity of the boundary of the domain is essential.
description: 19 pages; typos corrected, figure added (in Figure 11), submitted to the Pacific Journal of Mathematics; additional typos corrected. 20 pages, accepted by the Pacific Journal of Mathematics. UPDATE: 20 pages, accepted for publication by the Pacific Journal of Mathematics
RE) ORGANIZAÇÃO DOS FLUXOS DE ATENDIMENTO DO ACESSO AVANÇADO DURANTE A PANDEMIA DA COVID-19
Creators: name: Oliveira, Larayne Gallo Farias
name: Lislaine Aparecida Fracolli
name: Thaynara Silva Dos Anjos
name: Katyucia Oliveira Crispim De Souza
name: Granja, Gabriela Ferreira
name: Jerusa Costa Dos Santos
Publisher: name: Zenodo
Year: 2022

description: Anais do III Congresso Norte-Nordeste de Saúde Pública (Online) RESUMOS SIMPLES RESUMO
 Introdução: O Acesso Avançado é um método de organização de agenda em unidades
 de saúde da Atenção Primária à Saúde que propõe a gestão do tempo com manejo da
 demanda, controle da agenda e do tempo de espera. Durante a pandemia da Covid-19, estas
 unidades tiveram que reorganizar os fluxos de atendimento para que o usuário obtenha a
 resolução das suas demandas de saúde. Objetivo: Mapear as principais estratégias de
 reorganização dos fluxos de atendimento do Acesso Avançado durante a pandemia da
 Covid-19. Metodologia: Trata-se de uma revisão de literatura realizada a partir das bases
 Embase, Web of Science, National Library of Medicine (PubMed), Scopus, Literatura Latino
 Americana e do Caribe em Ciências da Saúde (LILACS), e Scientific Electronic Library Online
 (SciELO), com o uso dos descritores DeCS/MeSH: Acesso aos Serviços de Saúde, Atenção
 Primária à Saúde e Covid-19. Resultados: Foram selecionados 32 estudos, dos quais foram
 elegíveis sete estudos que responderam à pergunta: “Quais estratégias de reorganização
 dos fluxos de atendimento do acesso avançado durante a pandemia da Covid-19?” As
 principais estratégias mapeadas foram: Reorganização das demandas de vacina, redes de
 cuidado nos serviços de atenção disponíveis para proporcionar acesso, reorganização da
 agenda dos profissionais e a consulta compartilhada, demanda aos pacientes sintomáticos
 respiratórios pela Covid-19, acesso à rede de referência e continuidade informacional,
 estabelecimento de fluxo recepção-arquivo-consultório e atendimentos de urgência e visitas
 foram mantidos mesmo na ausência do profissional responsável. Conclusão: Considerase
 que as unidades de saúde encontraram alternativas de fluxos para manter o Acesso
 Avançado à população apesar da adoção de protocolos oficiais do Ministério da Saúde para
 evitar a infecção pela Covid-19.
 PALAVRAS-CHAVE: Acesso aos Serviços de Saúde. Atenção Primária à Saúde. COVID-19.
 ÁREA TEMÁTICA: Política e Gestão em Saúde.
title: Förderung nachhaltiger und aktiver Mobilität von Schülerinnen und Schülern - Möglichkeiten durch urbane infrastrukturelle Handlungsangebote wie die Wuppertaler Nordbahntrasse und daran anknüpfende projektorientierte BNE in der Lehramtsausbildung im Fach Geographie
Creators: name: Faßbender, Mira (Geb. Schraven)
Publisher: name: Bergische Universität Wuppertal
Year: 2020

description: Zur Förderung nachhaltiger und aktiver Mobilität von Schülerinnen und Schülern können verschiedene Ansätze diskutiert werden, zu denen u. a. infrastrukturelle Handlungsangebote in Form geeigneter urbaner Rad- und Fußwege sowie Bildung für nachhaltige Entwicklung (BNE) zählen, für deren Gestaltung Lehrkräfte insbesondere im Fach Geographie ausgebildet werden sollten. Diese beiden Ansätze werden in der vorliegenden Arbeit in zwei Forschungssträngen und unter Nutzung eines Mixed-Methods-Ansatzes hinsichtlich ihrer Möglichkeiten zur Förderung nachhaltiger Mobilität von Schülerinnen und Schülern betrachtet.
 Am Beispiel des Wuppertaler Rad- und Fußwegs Nordbahntrasse, die auch als Radschnellverbindung eingeordnet werden kann, werden die von diesem infrastrukturellen Handlungsangebot ausgehenden Chancen zur Förderung nachhaltiger Mobilität von Schülerinnen und Schülern untersucht. Darauf aufbauend wird dargestellt, wie an ein solches Infrastrukturbeispiel anknüpfend, zukunfts- und projektorientierte Bildung für nachhaltige Entwicklung in der geographischen universitären Lehramtsausbildung gestaltet werden kann und welche Chancen diese projektorientierten Lehr- bzw. Lernveranstaltungen für die Lehramtsausbildung sowie für die Förderung einer (Bildung für) nachhaltige(n) Entwicklung und zur Förderung nachhaltiger Mobilität von Schülerinnen und Schülern bieten.
 Die Arbeit ist als humangeographische Arbeit in enger Verbindung mit einem auf BNE fokussierten geographiedidaktischen und hochschuldidaktischen Zugang einzuordnen.
Searching for Signal of Primordial Black Hole from CMB Lensing and $γ$-ray Emissions
Creators: name: Tan, Xiu-Hui
name: Yan, Yang-Jie
name: Qiu, Taotao
name: Xia, Jun-Qing
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In this $\textit{Letter}$, we search for the signal of the primordial black holes (PBHs) by correlating the $γ$-ray emissions in the MeV energy band produced by the Hawking evaporation and the lensing effect of the cosmic microwave background (CMB). We use the conservative case of the astrophysical model as much as possible in the calculations, since the potential astrophysical origins dominate the observed emission in the MeV energy band. By carefully discussing the appropriate energy bands corresponding to different PBHs masses, it is worth expecting a tight constraint on the fraction of the Schwarzschild PBHs in the mass range of $10^{16} - 5\times10^{17}\,{\rm g}$, by simulations of the sensitivity of the future CMB-S4 project and the $γ$-ray telescope e-ASTROGAM. Furthermore, we also consider the PBHs model with spins, and find that the constraining ability of the PBHs fraction from the correlation between CMB lensing and $γ$-ray emissions can be improved by another order of magnitude, which could importantly fill the gaps with PBHs fraction limits in the mass range of $5\times 10^{17} - 2\times 10^{18}\,{\rm g}$.
description: 7 pages, 4 figures, accepted for publication in ApJL
SpeechFormer++: A Hierarchical Efficient Framework for Paralinguistic Speech Processing
Creators: name: Chen, Weidong
name: Xing, Xiaofen
name: Xu, Xiangmin
name: Pang, Jianxin
name: Du, Lan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Computation and Language (cs.CL)
subject: Sound (cs.SD)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Paralinguistic speech processing is important in addressing many issues, such as sentiment and neurocognitive disorder analyses. Recently, Transformer has achieved remarkable success in the natural language processing field and has demonstrated its adaptation to speech. However, previous works on Transformer in the speech field have not incorporated the properties of speech, leaving the full potential of Transformer unexplored. In this paper, we consider the characteristics of speech and propose a general structure-based framework, called SpeechFormer++, for paralinguistic speech processing. More concretely, following the component relationship in the speech signal, we design a unit encoder to model the intra- and inter-unit information (i.e., frames, phones, and words) efficiently. According to the hierarchical relationship, we utilize merging blocks to generate features at different granularities, which is consistent with the structural pattern in the speech signal. Moreover, a word encoder is introduced to integrate word-grained features into each unit encoder, which effectively balances fine-grained and coarse-grained information. SpeechFormer++ is evaluated on the speech emotion recognition (IEMOCAP & MELD), depression classification (DAIC-WOZ) and Alzheimer's disease detection (Pitt) tasks. The results show that SpeechFormer++ outperforms the standard Transformer while greatly reducing the computational cost. Furthermore, it delivers superior results compared to the state-of-the-art approaches.
description: 14 pages, 7 figures, 14 tables, TASLP 2023 paper
Topological Phases of Sound and Light
Creators: name: Peano, V.
name: Brendel, C.
name: Schmidt, M.
name: Marquardt, F.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Topological states of matter are particularly robust, since they exploit global features insensitive to local perturbations. In this work, we describe how to create a Chern insulator of phonons in the solid state. The proposed implementation is based on a simple setting, a dielectric slab with a suitable pattern of holes. Its topological properties can be wholly tuned in-situ by adjusting the amplitude and frequency of a driving laser that controls the optomechanical interaction between light and sound. The resulting chiral, topologically protected phonon transport along the edges can be probed completely optically. Moreover, we identify a regime of strong mixing between photon and phonon excitations, which gives rise to a large set of different topological phases. This would be an example of a Chern insulator produced from the interaction between two physically very different particle species, photons and phonons.
Example Forgetting: A Novel Approach to Explain and Interpret Deep Neural Networks in Seismic Interpretation
Creators: name: Benkert, Ryan
name: Aribido, Oluwaseun Joseph
name: AlRegib, Ghassan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: In recent years, deep neural networks have significantly impacted the seismic interpretation process. Due to the simple implementation and low interpretation costs, deep neural networks are an attractive component for the common interpretation pipeline. However, neural networks are frequently met with distrust due to their property of producing semantically incorrect outputs when exposed to sections the model was not trained on. We address this issue by explaining model behaviour and improving generalization properties through example forgetting: First, we introduce a method that effectively relates semantically malfunctioned predictions to their respectful positions within the neural network representation manifold. More concrete, our method tracks how models "forget" seismic reflections during training and establishes a connection to the decision boundary proximity of the target class. Second, we use our analysis technique to identify frequently forgotten regions within the training volume and augment the training set with state-of-the-art style transfer techniques from computer vision. We show that our method improves the segmentation performance on underrepresented classes while significantly reducing the forgotten regions in the F3 volume in the Netherlands.
Stellar Chromospheric Activity Database of Solar-like Stars Based on the LAMOST Low-Resolution Spectroscopic Survey
Creators: name: Zhang, Weitao
name: Zhang, Jun
name: He, Han
name: Song, Zhiping
name: Luo, Ali
name: Zhang, Haotong
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: $\require{mediawiki-texvc}$A stellar chromospheric activity database of solar-like stars is constructed based on the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) Low-Resolution Spectroscopic Survey (LRS). The database contains spectral bandpass fluxes and indexes of Ca II H&K lines derived from 1,330,654 high-quality LRS spectra of solar-like stars. We measure the mean fluxes at line cores of the Ca II H&K lines using a 1 $Å$ rectangular bandpass as well as a 1.09 $Å$ full width at half maximum (FWHM) triangular bandpass, and the mean fluxes of two 20 $Å$ pseudo-continuum bands on the two sides of the lines. Three activity indexes, $S_{\rm rec}$ based on the 1 $Å$ rectangular bandpass, and $S_{\rm tri}$ and $S_L$ based on the 1.09 $Å$ FWHM triangular bandpass, are evaluated from the measured fluxes to quantitatively indicate the chromospheric activity level. The uncertainties of all the obtained parameters are estimated. We also produce spectrum diagrams of Ca II H&K lines for all the spectra in the database. The entity of the database is composed of a catalog of spectral sample and activity parameters, and a library of spectrum diagrams. Statistics reveal that the solar-like stars with high level of chromospheric activity ($S_{\rm rec}>0.6$) tend to appear in the parameter range of $T_{\rm eff}\text{ (effective temperature)}<5500\,{\rm K}$, $4.3<\log\,g\text{ (surface gravity)}<4.6$, and $-0.2<[{\rm Fe/H}]\text{ (metallicity)}<0.3$. This database with more than one million high-quality LAMOST LRS spectra of Ca II H&K lines and basal chromospheric activity parameters can be further used for investigating activity characteristics of solar-like stars and solar-stellar connection.
description: 26 pages, 15 figures, accepted for publication in ApJS
Further study on Hunt's hypothesis (H) for Levy processes
Creators: name: Hu, Ze-Chun
name: Sun, Wei
Publisher: name: arXiv
Year: 2014
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60J45, 60G51

description: Getoor's conjecture that essentially all Levy processes satisfy (H) is a long-standing open problem in potential theory. In the beginning of the paper, we summarize the main results obtained so far for the problem. Then, we present two new necessary and sufficient conditions for the validity of (H). Furthermore, we give applications of these new criteria. First, we give explicit constructions of Levy processes satisfying (H) in a context where previously known results could not be applied. Second, we show that a large class of pure jump subordinators can be decomposed into the summation of two independent subordinators such that both of them satisfy (H).
EMIR, the near-infrared camera and multi-object spectrograph for the GTC
Creators: name: Garzón, F.
name: Balcells, M.
name: Gallego, J.
name: Gry, C.
name: Guzmán, R.
name: Hammersley, P.
name: Herrero, A.
name: Muñoz-Tuñón, C.
name: Pelló, R.
name: Prieto, M.
name: Bourrec, É.
name: Cabello, C.
name: Cardiel, N.
name: González-Fernández, C.
name: Laporte, N.
name: Milliard, B.
name: Pascual, S.
name: Patrick, L. R.
name: Patrón, J.
name: Ramírez-Alegría, S.
name: Streblyanska, A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We present EMIR, a powerful near-infrared (NIR) camera and multi-object spectrograph (MOS) installed at the Nasmyth focus of the 10.4 m GTC. EMIR was commissioned in mid-2016 and is offered as a common-user instrument. It provides spectral coverage of 0.9 to 2.5 $μm$ over a field of view (FOV) of 6.67x6.67 squared arcmin in imaging mode, and 6.67x4 squared arcmin in spectroscopy. EMIR delivers up to 53 spectra of different objects thanks to a robotic configurable cold slit mask system that is located inside the cryogenic chamber, allowing rapid reconfiguration of the observing mask. The imaging mode is attained by moving all bars outside the FOV and then leaving an empty space in the GTC focal surface. The dispersing suite holds three large pseudo-grisms, formed by the combination of high-efficiency FuSi ion-etched ruled transmission grating sandwiched between two identical ZnSe prisms, plus one standard replicated grism. These dispersing units offer the spectral recording of an atmospheric window $J,H,K$ in a single shot with resolving powers of 5000, 4250, 4000, respectively for a nominal slit width of 0.6\arcsec, plus the combined bands $YJ$ or $HK$, also in a single shot, with resolution of $\sim$ 1000. The original Hawaii2 FPA detector, which is prone to instabilities that add noise to the signal, is being replaced by a new Hawaii2RG detector array, and is currently being tested at the IAC. This paper presents the most salient features of the instrument, with emphasis on its observing capabilities and the functionality of the configurable slit unit. Sample early science data is also shown.
description: 10 pages, 11 figures
An On-Demand Optical Quantum Random Number Generator with In-Future Action and Ultra-Fast Response
Creators: name: Stipčević, Mario
name: Ursin, Rupert
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Random numbers are essential for our modern information based society e.g. in cryptography. Unlike frequently used pseudo-random generators, physical random number generators do not depend on complex algorithms but rather on a physical process to provide true randomness. Quantum random number generators (QRNG) do rely on a process, which can be described by a probabilistic theory only, even in principle. Here we present a conceptually simple implementation, which offers a 100% efficiency of producing a random bit upon a request and simultaneously exhibits an ultra low latency. A careful technical and statistical analysis demonstrates its robustness against imperfections of the actual implemented technology and enables to quickly estimate randomness of very long sequences. Generated random numbers pass standard statistical tests without any post-processing. The setup described, as well as the theory presented here, demonstrate the maturity and overall understanding of the technology.
description: 1 pages, 4 figures, 10 equations, 1 table, 31 references
Pragmatism in industrial modelling, applied to "ladle lifetime in the steel industry"
Creators: name: Johansen, Stein Tore
name: Løvfall, Bjørn Tore
name: Duran, Tamara Rodriguez
name: Zoric, Josip
Publisher: name: arXiv
Year: 2023
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences
subject: D.2, I.6.5, J.2

description: A methodology for building pragmatic physics based models (Zoric et al., 2015b) is here adapted to a use-case in the steel industry. The challenge is to predict the erosion of steel ladle linings, such that the model can support operators to decide if the lade lining can be used one more time or not. If the ladle has too thin lining 140 tons of hot liquid steel may escape out of the ladle, with huge consequences for workers and plant. The development was done with a very small core team (two developers), which is typical for many industrial developments. The adopted workflow for the development, challenges that were faced, and some model results are presented. One key learning is that development of models should allow time for maturing the process understanding, and time should be given for many iterations by "questions-responses and actions" at the various levels in the model development. The good interactions between development team and industry case owner is an important success factor. In this case the results of using the PPBM (Pragmatism in physics-based modelling) were good thanks to very successful interaction between development team and industry case owner. Combining or extending the model with use of ML methods and cognition-related methods, such as knowledge graphs and self-adaptive algorithms is discussed.
description: 22 pages; 7 figures