bluuebunny/crossref_metadata_2025_split huggingface dataset:
Limits on the Electromagnetic Counterpart of Binary Black Hole Coalescence at Visible Wavelengths
Authors: Noysena Kanthanakorn , Klotz Alain , Boër Michel , Laugier Romain , Komonjinda Siramas , Turpin Damien ,   The TAROT Collaboration
Published: November 2019

Abstract
We used the Télescope à Action Rapide pour les Objets Transitoires network of telescopes to search for the electromagnetic counterparts of GW150914, GW170104, and GW170814, which were reported to originate from binary black hole merger events by the Laser Interferometer Gravitational-wave Observatory and Virgo collaborations. Our goal is to constrain the emission from a binary black hole coalescence at visible wavelengths. We developed a simple and effective algorithm to detect new sources by matching the image data with the Gaia catalog Data Release 1. Machine learning was used and an algorithm was designed to locate unknown sources in a large field of view image. The angular distance between objects in the image and in the catalog was used to find new sources; we then process the candidates to validate them as possible new unknown celestial objects. Though several possible candidates were detected in the three gravitational-wave source error boxes studied, none of them were confirmed as a viable counterpart. The algorithm was effective for the identification of unknown candidates in a very large field and provided candidates for GW150914, GW170104, and GW170814. The entire 90% GW170814 error box was surveyed extensively within 0.6 days after the gravitational-wave emission resulting in an absolute limiting R magnitude of −23.8. This strong limit excludes to a great extent a possible emission of a gamma-ray burst with an optical counterpart associated with GW170814.
Tidally Induced Radius Inflation of Sub-Neptunes
Authors: Millholland Sarah 
Published: November 2019

Abstract
Recent work suggests that many short-period super-Earth and sub-Neptune planets may have significant spin axis tilts (“obliquities”). When planets are locked in high-obliquity states, the tidal dissipation rate may increase by several orders of magnitude. This intensified heat deposition within the planets’ interiors should generate significant structural consequences, including atmospheric inflation leading to larger transit radii. Using up-to-date radius estimates from Gaia Data Release 2, we show evidence for ∼50% larger average radii of planets wide of first-order mean-motion resonances, a population of planets with a theorized frequent occurrence of high obliquities. We investigate whether this radius trend could be a signature of obliquity tides. Using an adaptation of the Modules for Experiments in Stellar Astrophysics (MESA) stellar evolution toolkit, we model the atmospheric evolution of sub-Neptune-mass planets in response to additional internal heat from obliquity tides. The degree of radius inflation predicted by the models is ∼10%–100% for tidal luminosities ≳10−5 of the incident stellar power; this degree of inflation is broadly consistent with the observations and can approximately be described by power-law relationships. We present a few case studies of very low density “super-puff” planets—Kepler-79 d, Kepler-31 c, and Kepler-27 b—and show that they are strong candidates for potentially having undergone tidally induced radius inflation. We also discuss how the discrepancy between the two populations of planets with masses derived from radial velocities and transit timing variations is connected to the radius distribution features we have identified. Altogether, the calculations in this work confirm that tidal dissipation has nonnegligible consequences for the structural properties of short-period sub-Neptunes.
Calibrating the Cosmic Distance Ladder Using Gravitational-wave Observations
Authors: Gupta Anuradha , Fox Derek , Sathyaprakash B. S. , Schutz B. F. 
Published: November 2019

Abstract
Type Ia supernovae (SNe Ia) are among the pre-eminent distance ladders for precision cosmology due to their intrinsic brightness, which allows them to be observable at high redshifts. Their usefulness as unbiased estimators of absolute cosmological distances, however, depends on accurate understanding of their intrinsic brightness, or anchoring their distance scale. This knowledge is based on calibrating their distances with Cepheids. Gravitational waves from compact binary coalescences, being standard sirens, can be used to validate distances to SNe Ia when both occur in the same galaxy or galaxy cluster. The current measurement of distance by the advanced LIGO and Virgo detector network suffers from large statistical errors (∼50%). However, we find that, using a third-generation gravitational-wave detector network, standard sirens will allow us to measure distances with an accuracy of ∼0.1%–3% for sources within ≤300 Mpc. These are much smaller than the dominant systematic error of ∼5% due to the radial peculiar velocity of host galaxies. Therefore, gravitational-wave observations could soon add a new cosmic distance ladder for an independent calibration of distances to SNe Ia.
An Empirical Model of Energetic Neutral Atom Imaging of the Heliosphere and Its Implications for Future Heliospheric Missions at Great Heliocentric Distances
Authors: Galli A. , Wurz P. , Fichtner H. , Futaana Y. , Barabash S. 
Published: November 2019

Abstract
Several concepts for heliospheric missions operating at heliocentric distances far beyond Earth orbit are currently investigated by the scientific community. The mission concept of the Interstellar Probe, e.g., aims at reaching a distance of 1000 au away from the Sun within this century. This would allow the coming generation to obtain a global view of our heliosphere from an outside vantage point by measuring the energetic neutral atoms (ENAs) originating from the various plasma regions. It would also allow for direct sampling of the unperturbed interstellar medium, as well as for many observation opportunities beyond heliospheric science, such as visits to Kuiper Belt objects, a comprehensive view on the interplanetary dust populations, and infrared astronomy free from the foreground emission of the zodiacal cloud. In this study, we present a simple empirical model of ENAs from the heliosphere and derive basic requirements for ENA instrumentation on board a spacecraft at great heliocentric distances. We consider the full energy range of heliospheric ENAs from 10 eV to 100 keV because each part of the energy spectrum has its own merits for heliospheric science. To cover the full ENA energy range, two or three different ENA instruments are needed. Thanks to parallax observations, some insights about the nature of the IBEX ribbon and the dimensions of the heliosphere can already be gained by ENA imaging from a few au heliocentric distance. To directly reveal the global shape of the heliosphere, measurements from outside the heliosphere are, of course, the best option.
O TRATO DOS CONTEÚDOS DA EDUCAÇÃO FÍSICA: UMA ANÁLISE A PARTIR DA PERSPECTIVA DO PROFESSOR ATUANTE NA EDUCAÇÃO BÁSICA
Authors: Paixão Jairo Antonio , Della Lucia Emanuel Mattos , Souza Jefferson Teixeira , Souza Ederley Emanuel 
Published: November 2019

Analisou o trato dos conteúdos de Educação Física pelos professores na educação básica. A partir de uma investigação descritiva e de cunho qualitativo com professores que se formaram após o movimento renovador, percebeu-se uma situação paradoxal na qual, apesar de ressaltarem a importância de se adotar uma abordagem metodológica, a grande maioria desses professores não adotam nenhum tipo de abordagem metodológica sistematizada no trato dos conteúdos em suas aulas. Dentre as razões tal postura foram ressaltadas materiais pedagógicos e infraestrutura insuficientes para as aulas, a indisciplina e o desinteresse por parte de uma parcela considerável de alunos em participar das aulas. Este cenário revela um componente curricular que, do ponto de vista metodológico, encontra-se distante de atingir as finalidades que lhe são atribuídas pelos currículos oficiais como os PCN´s, CBC´s e ainda a BNCC, que se encontra em vias de ser implantada no ensino básico brasileiro.
A POLÍTICA DA EDUCAÇÃO ESCOLAR INDÍGENA E A GESTÃO ESCOLAR: O QUE DIZEM OS DOCUMENT
Authors: Perrrude Marleide Rodrigues da Silva , Czernisz Eliane Cleide da Silva 
Published: November 2019

Resumo: Este artigo tem por objetivo discutir a educação escolar indígena no Brasil. Parte do seguinte questionamento: como a reforma gerencial tem impactado a educação escolar indígena? Que direcionamento tem sido dado à política educativa para a organização da prática pedagógica? Como procedimento, foi realizado um estudo bibliográfico sobre a reforma do estado, gestão e educação escolar indígena, além de se proceder à análise documental, destacando os documentos que balizam a política educacional para os povos indígenas. Concluímos, pontuando que a educação escolar indígena, direcionada em meio às transformações políticas e pedagógicas influenciadas pelo neoliberalismo e pela administração gerencial, apesar dos problemas que tem trazido com a transferência de responsabilidades do poder público para as escolas, tem possibilitado maior abertura para a participação das comunidades indígenas na definição e encaminhamento do projeto pedagógico e no direcionamento das práticas pedagógicas, realizadas conforme a necessidade dos diferentes povos indígenas. Palavras-Chave: Reforma do Estado, Política Educacional, Educação Escolar Indígena, Gestão
ASPETTI ETICI DELLA RICERCA E DELLâ€™INNOVAZIONE TECNOLOGICA: IL CASO DELLâ€™INFORMATICA | MONDI VIRTUALI, RETI SOCIALI, SISTEMI AUTONOMI â€œINTELLIGENTIâ€
Authors: Ghezzi Carlo 
Published: November 2019

Advances in research and technological innovations in Informatics are revolutionizing our society. We already live in a cyber-physical world: interaction and collaboration among humans occurs seamlessly both in physical and in virtual spaces and virtual agents automate tasks at all levels, including those that traditionally relied on human intelligence. Access to data and information is available to everybody, anywhere and at any time, eliminating barriers but also generating potential distorted usage. Whatever humans do is inevitably mediated by technology, which potentially invades the private sphere of individuals. Changes are happening so fast and their effects are so spectacular that their ethical implications are often understood too late or underestimated. This contribution briefly introduces the disruptive changes produced by advances in Informatics and their severe ethical implications. It argues that an interdisciplinary effort is needed to focus on ethical issues while research and innovation are developed rather than as an after-the-fact reflection.
Full-physics carbon dioxide retrievals from the Orbiting Carbon Observatory-2 (OCO-2) satellite by only using the 2.06 µm band
Authors: Wu Lianghai , Hasekamp Otto , Hu Haili , aan de Brugh Joost , Landgraf Jochen , Butz Andre , Aben Ilse 
Published: November 2019

Abstract. Passive remote sensing of atmospheric carbon dioxide uses spectroscopic measurements of sunlight backscattered by the Earth's surface and atmosphere. The current state-of-the-art retrieval methods use three different spectral bands, the oxygen A band at 0.76 µm and the weak and strong CO2 absorption bands at 1.61 and 2.06 µm, respectively, to infer information on light scattering and the carbon dioxide column-averaged dry-air mole fraction XCO2. In this study, we propose a one-band XCO2 retrieval technique which uses only the 2.06 µm band measurements from the Orbiting Carbon Observatory-2 (OCO-2) satellite. We examine the data quality by comparing the OCO-2 XCO2 with collocated ground-based measurements from the Total Carbon Column Observing Network (TCCON). Over land and ocean the OCO-2 one-band retrieval shows differences from TCCON observations with a standard deviation of ∼1.30 ppm and a station-to-station variability of ∼0.50 ppm. Moreover, we compare one-band and three-band retrievals over Europe, the Middle East, and Africa and see high correlation between the two retrievals with a SD of 0.93 ppm. Compared to the three-band retrievals, XCO2 retrievals using only the 2.06 µm band have similar retrieval accuracy, precision, and data yield.
How Should Start-Up Biotechnology Companies Manage Learning and Generate the Necessary Knowledge to Achieve an Alliance-Based Stage of Growth
Authors: Lamb Christopher C 
Published: November 2019

Ethical drugs can take hundreds of millions of dollars and over 10 years to bring to market. Start-up biotechnology companies are recognized for their unique exploration and then exploitation in the development of future drugs. However, these potential new drugs are highly unpredictable and require a broad scope of inquiry. Significant and complex knowledge along with openness to learning is required because of the unusually high risk and uncertainty of biotechnology. After initial start-up, biotechnology companies often form a strategic partnership with an established pharmaceutical company to get additional funding and incorporate needed later stage development knowledge.
To conclude an alliance, a company needs to develop learning processes that transition the organization to the next stage of growth. These processes advance the technology sufficiently to conclude a strategic deal. Effective learning enhances exploitation of knowledge needed to generate unique insights and understandings related to the development of a new drug.
This paper examines seven biotechnology companies and identifies key processes that should optimize “effective learning” to enhance the probability of creating the necessary new knowledge needed for a start-up to achieve an alliance stage of growth. Despite a majority of the companies successfully reaching the scaling-up stage of growth, some ultimately fail due to a lack of one or more the explored factors.
Teatro de bonecos: proposta lúdico-investigativa na articulação de temáticas sociocientíficas na escola
Authors: Reis Anna Cecília de Alencar , Dos Santos Emerson Izidoro , Piassi Luís Paulo de Carvalho 
Published: November 2019

Neste artigo apresentamos uma proposta de intervenção a partir do teatro de bonecos em relação a leitura e a contação de histórias. Para tanto, elencamos obras direcionadas a divulgação do teatro de bonecos no ambiente escolar, datada entre as décadas de 40 a 80, para compreendermos como alguns conceitos para este campo foram estabelecidos e os discutimos diante da nossa prática. A peça Por que as aranhas fazem suas teias? foi desenvolvida no âmbito do projeto Banca da Ciência e apresentada para crianças da educação infantil em duas escolas do município de Guarulhos-SP. A peça proporcionou a discussão sobre ciências, questões sociais e o envolvimento com o teatro de bonecos. Palavras-chave: Teatro de bonecos. Educação infantil. Ciências.
THERMODYNAMIC PROPERTIES OF ORGANIC ACIDS AND SOME THEIR DERIVATIVES
Authors: Ovchinnikov Vitaly V. , Kulakov Alexey A. , Grigor′eva Irina G. , Maltseva Svetlana A. 
Published: November 2019

The heats of vaporization, combustion, formation, entropy and the heat capacities in different phases of different carbonic acids and their derivatives: acetates, esters with fatty radicals, two-, three- and four-basic acids (52 compounds) were analysed in the framework of one-parametric mathematic equations. The experimental data of all chosen one-, two-, three- and four-basic acids were analyzed. It was determined, that all thermodynamic functions of these types of compounds depend on the number of valence electrons N, from which the sum of lone electron pairs g as represented in the equations Δvap,c,fH° = i ± f (N-g) and S°(Cp) = i ± f (N-g) is excluded. The coefficients f in the first equations is in the range of 104-113 kJ mol-1 electron-1, that corresponds to the same values f in the equations, which are mentioned in our earlier papers on the determination of the heats of combustion of organic acids. As concerned of coefficient i in the received equations, necessary to note that situation is not synonymous as with the coefficient f. The magnitudes of this coefficient are different in the equations of vaporization, combustion, formation also as in the equations of entropy and the heat of capacity. On the base of literary experimental data we calculated the 29 new equations, which can be used for the calculation of the same thermodynamic functions for other new organic acids and especially bioorganic substances with the useful properties. Necessary to add, that the received equations can serve as additional material for the calculation of the bond energies of fatty acids and their derivatives in gas phase.
TLR4 polymorphisms may increase susceptibility to periodontitis in Pg-positive individuals
Authors: Li Wenjing , Cao Xiaojing , He Lu , Meng Huanxin , Yang Bingtao , Liao Yanting 
Published: November 2019

ObjectiveTo investigate the correlation between the single nucleotide polymorphisms (SNPs) in the toll-like receptor 4 (TLR4) gene and the susceptibility to chronic periodontitis.Design241 Chinese subjects from the cohort of Beijing Shijingshan Community were recruited. Buccal swab samples, the whole unstimulated saliva and periodontal clinical parameters were collected. Human DNA extracted from buccal swab samples were used for genotyping eight SNPs of the TLR4 gene (rs11536889,rs1927906,rs1927911,rs2149356,rs4986790,rs4986791,rs2737190,rs787384) by the Sequenom MassARRAY system.Porphyromonas gingivalis(P. gingivalis) was detected from the deposition of the whole unstimulated saliva through polymerase chain reaction (PCR) method based on 16S rRNA. The correlation between SNPs of TLR4 and chronic periodontitis susceptibility in the whole subjects and the patients detected withP. gingivaliswas investigated.ResultsThe variants ofrs4986790andrs4986791were not found in 241 Chinese subjects. Moreover, there was no significant difference in the distribution of theother6 SNPs of TLR4 between groups of none/mild -periodontitis and moderate/severe-periodontitis subjects. When combined withP. gingivalisinfection,rs1927911(TT/CC+CT),rs2149356(TT/GG+GT) andrs2737190(GG/AA+AG) were independent risk factors of chronic periodontitis.ConclusionThree SNPs of TLR4, i.e.,rs1927911(TT/CC+CT),rs2149356(TT/GG+GT) andrs2737190(GG/AA+AG), were associated with moderate/severe chronic periodontitis in Chinese population infected withP. gingivalis.P. gingivalis, which interacted with TLR4 gene plays an important role in the pathogenesis of periodontitis.
Rehabilitation time has greater influences on soil mechanical composition and erodibility than does rehabilitation land type in the hilly-gully region of the Loess Plateau, China
Authors: Qiao Leilei , Chen Wenjing , Wu Yang , Liu Hongfei , Zhang Jiaoyang , Liu Guobin , Xue Sha 
Published: November 2019

Background
The major landscape in the hilly-gully region of the Loess Plateau is greatly affected by vegetation rehabilitation on abandoned cropland. Although many studies have shown that the rehabilitation have greatly improved soil conditions and protected them from erosion, these effectiveness were not always in consensus possibly due to the land type of vegetation or to the rehabilitation time. To close this gap, we conducted a long term experiment as follows.

Methods
In this study, we analysed four land types of vegetation rehabilitation (shrub land, woodland, naturally revegetated grassland, and orchard land) with different rehabilitation times and investigated the mechanical composition and erodibility of the soil. Areas of slope croplandand natural forest were selected as controls.

Results
The results showed that soil depth, rehabilitation time and rehabilitation land type had strong impacts on soil mechanical composition, micro-aggregation and erodibility. Following rehabilitation, naturally revegetated grassland and shrub land had lower fractal dimensions of particle size distribution (fractal dimensions of PSD), fractal dimensions of micro-aggregation, and erodibility (K factor) than did cropland. Compared to the positive effects of rehabilitation mainly happened in the topsoil layer at other rehabilitation land type, that of woodland happened in the deeper soil layer. Besides, the indispensable rehabilitation time for the significant improvement of soil condition was shorter at naturally revegetated grassland than that at shrub land and woodland.

Discussion
Although rehabilitation time was more influential than was rehabilitation land type or soil depth, the differences among the rehabilitation land types showed that naturally revegetated grassland with native plants is the most time-saving rehabilitation vegetation for the Loess Plateau in the conversion from slope cropland. The success of rehabilitation in this forestry practice was mainly contributed by the suited species of rehabilitation land type to the local climate and soil. Based on the differences of rehabilitation effectiveness resulting from land type, we should be cautious to choose land types for the rehabilitation of soil conditions in the Loess Plateau.
PARANOIA DAS MASSAS DA ERA DIGITAL - OS SOFTIDIOTS E A BIGBROTHERIZAÇÃO
Authors: Quinet Antonio 
Published: November 2019

Este trabalho é um ensaio sobre a estrutura do estado paranoico na era digital a partir dos conceitos de sociedade escópica (Quinet), objeto (a) olhar (Lacan), e psicologia das massas (Freud). A pulsão escópica, com o gozo de ver-ser-visto, dá a base ao modelo do panóptico de Bentham da sociedade disciplinar de vigilância monitorizada como desenvolveu Michel Foucault. Esse modelo foi levado a seu zênite na era digital. Estudamos sua utilização na política com a estratégia da “bigbrotherização” que tem por objetivo a manipulação dessubjetivante dos indivíduos e a formação de “softidiots”. Eis a tendência que encontramos particularmente na atual conjuntura de muitos países incluindo, de forma diferente, o Brasil e a China.
ATOS INAUGURAIS E POLÍTICA NA AMÉRICA LATINA ATUAL
Authors: Lifschitz Javier 
Published: November 2019

Com base em autores da denominada esquerda lacaniana, propomos um diálogo a partir do conceito psicanalítico de ato inaugural em termos de perspectiva sobre a política. Para abordar essa questão tomamos como referência o último período de governos progressistas, na Argentina e no Brasil, e discutimos alguns atos que consideramos inaugurais – como as manifestações de 2013, as ocupações de escolas e o #elenão - na constituição de novos sujeitos políticos. Problematizamos essa temática no contexto latino-americano, principalmente no que diz respeito à possibilidade de existirem atos inaugurais pelo Estado e sobre os efeitos de clausura a partir do golpe parlamentar de 2016 e após as últimas eleições no Brasil.
ESSE FILME NÃO É UM FILME
Authors: Azevedo Pacheco Ricardo 
Published: November 2019

O título do texto foi o de uma mesa do Encontro: “Políticas da Psicanálise: quando os psicanalistas se encontram, o que acontece?” (Campinas, SP, Junho 2019). Ele é efeito das discussões entre os participante da mesa que tomaram o documentário “No intenso agora” ( João Moreira Sales - 2017) como dispositivo de trabalho. Trata-se de um documentário político que justapõe imagens de arquivo de uma série de acontecimentos diferentes da década de 1960: a China de 1966 sob o regime de Mao, visitada e filmada pela mãe do diretor na época com a revolta estudantil em Paris e a Primavera de Praga. O autor tece considerações sobre a lógica e a política em jogo quando psicanalistas se encontram, ou seja, sua associação com alguns outros.