bluuebunny/crossref_metadata_2025_split huggingface dataset:
CIRCULAÇÃO SIMPLES: MÉTODO E HISTÓRIA EM MARX
Authors: Oliveira Hélio Ázara de 
Published: July 2020

O artigo trata de um dos principais problemas interpretativos acerca da primeira seção de O Capital, mais precisamente nos interessa apontar como as primeiras polêmicas em torno da primeira seção de O Capital determinaram o problema que ficou conhecido como referência histórica das categorias. Trata-se, como veremos, do problema de determinar por onde deve começar a exposição da crítica da Economia Política, se pelos começos da civilização, e, portanto, a partir do pré-capitalismo, ou se deve-se começar já desde sempre a partir do capitalismo.
POLÍTICA E AÇÃO EDUCATIVA NO PENSAMENTO DE KARL KORSCH (1912-1922): SOBRE A INFLUÊNCIA DOS SOCIALISTAS FABIANOS
Authors: Costa Neto Pedro Leão da 
Published: July 2020

O objetivo do presente artigo é investigar quais são os motivos da elaboração teórica dos Socialistas Fabianos que se manifestam na formação do pensamento de Karl Korsch. Partindo de uma análise, da concepção teórica desenvolvida pelos fabianos e das diferentes relações que se estabeleceram entre eles e o marxismo, tentaremos mostrar a importância da concepção fabiana de política e educação e como ela se manifesta, por um lado, no caráter anti-metafísico e prático da teoria korschiana, e por outro lado na sua crítica a socialdemocracia alemã.
LUKÁCS: ESSÊNCIA, HISTÓRIA E REVOLUÇÃO
Authors: Lessa Sérgio 
Published: July 2020

A relação entre o trabalho e a totalidade social apenas superficialmente se relaciona com as mudanças gerenciais ou tecnológicas. O debate contemporâneo, todavia, tende a fazer dessa relação superficial o fundamento da evolução da sociedade, quer para uma sociabilidade para além do capitalismo ou, então, para uma essencialmente nova fase do próprio capitalismo. O texto procura questionar esse procedimento.
LUKÁCS, SOCIALISMO E DEMOCRACIA: COMENTÁRIOS CRÍTICOS
Authors: Araujo Paulo Henrique Furtado de 
Published: July 2020

Partindo da constatação de que Marx pouco tratou sobre a construção do metabolismo social que deve ser instituído a partir da superação da sociedade capitalista, e da constatação do fracasso das formações pós-capitalistas do capital (o chamado socialismo real), acreditamos ser tarefa importante resgatar contribuições de autores marxistas sobre o tema. Faremos uma tentativa de esboçar a posição de Lukács, expressa no ensaio “O Processo de Democratização” escrito em 1968, sobre a política e a democracia no quadro de luta pela auto-reforma do socialismo realmente existente. Nossa ideia é apontar a forma de apreensão dessas categorias e, ao mesmo tempo, sinalizar as dificuldades teóricas que o autor apresenta.
A CORRENTE ALTHUSSERIANA E O DESENVOLVIMENTO DO MATERIALISMO HISTÓRICO
Authors: Saes Décio Azevedo Marques de 
Published: July 2020

O artigo discute se ainda vale a pena investir na reflexão sobre o materialismo histórico, já que esse monumental programa teórico, construído por Marx e Engels, com apoio num vasto e paciente trabalho de pesquisa histórica, parece estar, hoje, cercado por todos os lados. O autor defende o uso dessa expressão de forma enfática, porque os intelectuais conservadores estariam agora coadjuvados, no ataque ao materialismo histórico, por antigos althusserianos, que se renderam à proposta catastrófica do último Althusser: o projeto de construção de um “materialismo do encontro”, sobre as ruínas da teoria marxista da história.
A HERANÇA DO FETICHISMO E O DESAFIO DA HEGEMONIA EM UMA ÉPOCA DE REBELDIA GENERALIZADA
Authors: KOHAN Néstor 
Published: July 2020

Este artigo faz a critica das filosofias ditas pós-estruturalistas e pós-modernas. As vincula ao propalado fim do sujeito ou dos sujeitos. Destaca diversas poupagens dessa concepção que penetrou na vida acadêmica e na linguagem, possibilitando uma guinada liberal e metafísica. Essa situação é produto da derrota das lutas sociais e politico culturais dos anos 1960, mas tem uma possível origem na critica teórica althusseriana do humanismo e do fetichismo. Só a recuperação da teoria do fetichismo e de uma visão integradora proposta por uma hegemonia socialista poderia contestar a metafisica pós dos fragmentos.
O mito contemporâneo da heroína esportiva: da guerra ao pódio
Authors: Mattos Rafael da Silva , Castro Juliana Brandão Pinto de , Sabino César , Espírito Santo Wecisley Ribeiro do , Florentino Jéssica Oliveira , Menezes Luciana de Souza , Oliveira Leonardo Hernandes de Souza , Nascimento Stephany de Sá 
Published: July 2020

Objetivo: identificar o imaginário social transmitido pela mídia sobre atletas consideradas heroínas esportivas e identificar os discursos sobre as diferenças de gênero transmitidas pela mídia nos Jogos Olímpicos Rio 2016. Métodos: trata-se de uma pesquisa descritiva de análise documental, cuja estratégia metodológica consistiu na busca de matérias sobre heroínas Rio 2016 no site Google. As reportagens foram analisadas utilizando-se a Análise da Ordem do Discurso, de Michel Foucault. Resultados: os princípios da inversão, descontinuidade, especificidade e exterioridade, estabelecidos por Foucault, estavam presentes nos discursos analisados. Nas reportagens, as mulheres consideradas heroínas esportivas tiveram destaque quando conquistaram a primeira medalha olímpica do país de origem, quando realizaram grandes atuações em partidas decisivas e quando superaram abuso sexual. Conclusão: mesmo sendo consideradas heroínas esportivas, a imagem dessas mulheres foi associada à figura masculina. Isso evidencia a necessidade de avanços no quesito igualdades de direito entre homens e mulheres na sociedade.ABSTRACT. The contemporary myth of sports heroin: from war to podium. Objective: to identify the social imaginary transmitted by the media about women athletes considered athletic heroines and to identify the discourses on the gender differences transmitted by the media in the Rio 2016 Olympic Games. Methods: this is a descriptive research of documentary analysis, whose methodological strategy consisted in the search of stories about Rio 2016 heroines in the Google site. The reports were analyzed using the Discourse Order Analysis of Michel Foucault. Results: the principles of inversion, discontinuity, specificity and exteriority, as established by Foucault, were present in the discourses analyzed. In the reports, women considered to be sport heroines were highlighted when they won the first Olympic medal in the country of origin, when they performed great plays in decisive games and when they overcame sexual abuse. Conclusion: however, even though they were considered sport heroines, the image of these women was associated with the male figure. This highlights the need for advances in the area of equal rights between men and women in society.
PENINGKATAN KETERAMPILAN BERBAHASA INGGRIS UNTUK IBU-IBU PKK RT 06 RW 16 KELURAHAN SUNGAI LANGKAI KECAMATAN SAGULUNG BATAM
Authors: Rudianto Gaguk , Simanjuntak Dairi Sapta Rindu 
Published: July 2020

Keluarga memegang peranan yang sangat penting dalam menentukan tumbuh kembang seoarang anak. Tidak hanya perkembangan secara fisik, tetapi juga secara mental dan spiritualnya. Demikian juga permasalahan pendidikan sangat ditentutukan oleh sistem pola asuh dalam keluarga. Sistem pola asuh tersebut tidak hanya dikendalikan oleh seorang ayah saja, tetapi peranan ibu juga sagat menentukan arah atau tujuan keluarga tersebut terutama apabila figur seorang ayah mempunyai kesibukan diluar lingkungan keluarga seperti mencari nafkah dan lain-lain. Pada saat seperti itulah peranan seorang ibu akan menjadi pusat dari segala proses tumbuh kembang termasuk dari segi pendidikan. Contoh yang paling sederhana adalah ketika anak-anak tidak dapat mengerjakan PR yang diberikan oleh guru sekolah seperti PR Bahasa Inggris. Tentunya anak tersebut akan menanyakan kepada orang yang berada di rumah terutama ibunya. Karena menghadapi permasalahan yang demikian tetu seorang ibu harus setidaknya mempunyai pengetahuan bahasa Inggris walaupun tingkat dasar Berdasarkan dari kondisi seperti diatas itulah kami melakukan Pengabdian kepada masyarakat berupa Pembinaan Peningkatan Ketrampilan berbahasa Inggris bagi ibu-ibu PKK di lingkungan Kelurahan Sungai Langkai Kecamatan Sagulung-Batam. Metode pelaksanaan pengabdian ini dilakukan dengan memberikan pelatihan dengan cara tutorial yang dilakukan selama 5 kali pertemuan selama bulan Juli sampai September 2019. Selama proses tutorial yang dilakukan pengabdi menunjukkan bahwa animo atau minat dari sasaran program pengabdian ini sugguh luar biasa. Hal ini ditunjukkan oleh kedatangan mereka yang selalu antusias untuk menerima materi yang telah disikan sebelumnya.

(Kata kunci: Bahasa Inggris, Pengabdian, Ibu PKK)
opción por los pobres: algunas implicaciones para la pedagogía cristiana
Authors: Jiménez Rodríguez Manuel José 
Published: July 2020

Los obispos latinoamericanos reunidos en Puebla (México, 1979), en el marco de la opción preferencial por los pobres que toman en continuidad con Medellín (Colombia, 1968), afirman que dicha opción ha ayudado a la Iglesia a descubrir el potencial evangelizador de los pobres. Hace pocos años el papa Francisco en la encíclica La alegría del Evangelio (2013), retoma la idea del potencial evangelizador de los pobres.
El presente texto quiere aportar una breve reflexión al modo como la opción por los pobres impacta de modo radical la pedagogía cristiana, aquella en donde se forma el discípulo, pero también aquella en la que la Iglesia entra en diálogo con el mundo, de modo especial el ámbito escolar formal. No ofrece indicaciones prácticas sobre cómo la opción por los pobres se hace presente en los planes de formación, en los proyectos pedagógicos o en el currículo del área. Pero sí se espera que, a partir de ellas, sean los agentes educativos implicados en estas áreas quienes tomen decisiones prácticas y de terreno al respecto.
Two Views of the Radius Gap and the Role of Light Curve Fitting
Authors: Petigura Erik A. 
Published: July 2020

Abstract
Recently, several groups have resolved a gap that bifurcates planets between the size of Earth and Neptune into two populations. The location and depth of this feature is an important signature of the physical processes that form and sculpt planets. In particular, planets residing in the radius gap are valuable probes of these processes as they may be undergoing the final stages of envelope loss. Here, we discuss two views of the radius gap by Fulton & Petigura (F18) and Van Eylen et al. (V18). In V18, the gap is wider and more devoid of planets. This is due, in part, to V18's more precise measurements of planet radius

. Thanks to Gaia, uncertainties in stellar radii

are no longer the limiting uncertainties in determining

for the majority of Kepler planets; instead, errors in

/

dominate. V18's analysis incorporated short-cadence photometry along with constraints on mean stellar density that enabled more accurate determinations of

/

. In the F18 analysis, less accurate

/

blurs the boundary the radius gap. The differences in

/

are largest at high impact parameter (

) and often exceed 10%. This motivates excluding high-b planets from demographic studies, but identifying such planets from long-cadence photometry alone is challenging. We show that transit duration can serve as an effective proxy, and we leverage this information to enhance the contrast between the super-Earth and sub-Neptune populations.
NS 1987A in SN 1987A
Authors: Page Dany , Beznogov Mikhail V. , Garibay Iván , Lattimer James M. , Prakash Madappa , Janka Hans-Thomas 
Published: July 2020

Abstract
The possible detection of a compact object in the remnant of SN 1987A presents an unprecedented opportunity to follow its early evolution. The suspected detection stems from an excess of infrared emission from a dust blob near the compact object’s predicted position. The infrared excess could be due to the decay of isotopes like 44Ti, accretion luminosity from a neutron star or black hole, magnetospheric emission or a wind originating from the spin down of a pulsar, or to thermal emission from an embedded, cooling neutron star (NS 1987A). It is shown that the last possibility is the most plausible as the other explanations are disfavored by other observations and/or require fine-tuning of parameters. Not only are there indications that the dust blob overlaps the predicted location of a kicked compact remnant, but its excess luminosity also matches the expected thermal power of a 30 yr old neutron star. Furthermore, models of cooling neutron stars within the minimal cooling paradigm readily fit both NS 1987A and Cas A, the next-youngest known neutron star. If correct, a long heat transport timescale in the crust and a large effective stellar temperature are favored, implying relatively limited crustal n-1S0 superfluidity and an envelope with a thick layer of light elements, respectively. If the locations do not overlap, then pulsar spin down or accretion might be more likely, but the pulsar’s period and magnetic field or the accretion rate must be rather finely tuned. In this case, NS 1987A may have enhanced cooling and/or a heavy-element envelope.
Stellar Characterization of Keck HIRES Spectra with The Cannon
Authors: Rice Malena , Brewer John M. 
Published: July 2020

Abstract
To accurately interpret the observed properties of exoplanets, it is necessary to first obtain a detailed understanding of host star properties. However, physical models that analyze stellar properties on a per-star basis can become computationally intractable for sufficiently large samples. Furthermore, these models are limited by the wavelength coverage of available spectra. We combine previously derived spectral properties from the Spectroscopic Properties of Cool Stars (SPOCS) catalog with generative modeling using The Cannon to produce a model capable of deriving stellar parameters (

, T
eff, and

) and 15 elemental abundances (C, N, O, Na, Mg, Al, Si, Ca, Ti, V, Cr, Mn, Fe, Ni, and Y) for stellar spectra observed with Keck Observatory’s High Resolution Echelle Spectrometer (HIRES). We demonstrate the high accuracy and precision of our model, which takes just ∼3 s to classify each star, through cross-validation with pre-labeled spectra from the SPOCS sample. Our trained model, which takes continuum-normalized template spectra as its inputs, is publicly available at https://github.com/malenarice/keckspec. Finally, we interpolate our spectra and employ the same modeling scheme to recover labels for 477 stars using archival stellar spectra obtained prior to Keck’s 2004 detector upgrade, demonstrating that our interpolated model can successfully predict stellar labels for different spectrographs that have (1) sufficiently similar systematics and (2) a wavelength range that substantially overlaps with that of the post-2004 HIRES spectra.
Hurricane Genesis is Favorable on Terrestrial Exoplanets Orbiting Late-type M Dwarf Stars
Authors: Komacek Thaddeus D. , Chavas Daniel R. , Abbot Dorian S. 
Published: July 2020

Abstract
Hurricanes are one of the most extreme storm systems that occur on Earth, characterized by strong rainfall and fast winds. The terrestrial exoplanets that will be characterized with future infrared space telescopes orbit M dwarf stars. As a result, the best observable terrestrial exoplanets have vastly different climates from Earth, with a large dayside-to-nightside irradiation contrast and relatively slow rotation. Hurricanes may affect future observations of terrestrial exoplanets because they enhance the vertical transport of water vapor and could influence ocean heat transport. In this work, we explore how the environment of terrestrial exoplanets orbiting M dwarf stars affects the favorability of hurricane genesis (formation). To do so, we apply metrics developed to understand hurricane genesis on Earth to three-dimensional climate models of ocean-covered exoplanets orbiting M dwarf stars. We find that hurricane genesis is most favorable on intermediate-rotating tidally locked terrestrial exoplanets with rotation periods of ∼8–10 days. As a result, hurricane genesis is most favorable for terrestrial exoplanets in the habitable zones of late-type M dwarf stars. The peak in the favorability of hurricane genesis at intermediate rotation occurs because sufficient spin is required for hurricane genesis, but the vertical wind shear on fast-rotating terrestrial exoplanets disrupts hurricane genesis. We find that hurricane genesis is less favorable on slowly rotating terrestrial exoplanets, which agrees with previous work. Future work using simulations that resolve hurricane genesis and evolution can test our expectations for how the environment affects the favorability of hurricane genesis on tidally locked terrestrial exoplanets.
The Hα Emission Line Variations of HR 6819
Authors: Gies Douglas R. , Wang 王 Luqian 璐茜 
Published: July 2020

Abstract
The star system HR 6819 was recently proposed by Rivinius et al. as the site of the nearest example of a stellar-mass black hole. Their spectra show evidence of two components: a B3 III star in a 40 day orbit and a stationary B-emission line star. Based upon the orbital mass function and the lack of evidence of a spectral component with reflex orbital motion, Rivinius et al. suggested that HR 6819 is a triple system consisting of an inner B3 III star plus black hole binary orbited by a distant Be star. Here we present an alternative model based upon an examination of the Hα emission line in their spectra. We show that the emission line displays the small reflex motion expected for the companion in the inner orbit and shows variations in profile shape related to orbital phase. This indicates that HR 6819 is a binary system consisting of a massive Be star and a low-mass companion that is the stripped down remnant of a former mass donor star in a mass transfer binary.
Evolution of the Earth’s Magnetosheath Turbulence: A Statistical Study Based on MMS Observations
Authors: Li Hui , Jiang Wence , Wang Chi , Verscharen Daniel , Zeng Chen , Russell C. T. , Giles B. , Burch J. L. 
Published: July 2020

Abstract
Composed of shocked solar wind, the Earth’s magnetosheath serves as a natural laboratory to study the transition of turbulence from low Alfvén Mach number, M
A, to high M
A. The simultaneous observations of magnetic field and plasma moments with unprecedented high temporal resolution provided by NASA’s Magnetospheric Multiscale Mission (MMS) enable us to study the magnetosheath turbulence at both magnetohydrodynamics (MHD) and sub-ion scales. Based on 1841 burst-mode segments of MMS-1 from 2015 September to 2019 June, comprehensive patterns of the spatial evolution of magnetosheath turbulence are obtained: (1) from the subsolar region to the flanks, M
A increases from <1 to >5. At MHD scales, the spectral indices of the magnetic-field and velocity spectra present a positive and negative correlation with M
A. However, no obvious correlations between the spectral indices and M
A are found at sub-ion scales. (2) From the bow shock to the magnetopause, the turbulent sonic Mach number,

, generally decreases from >0.4 to <0.1. All spectra steepen at MHD scales and flatten at sub-ion scales, representing positive/negative correlations with M
turb. The break frequency increases by 0.1 Hz when approaching the magnetopause for the magnetic-field and velocity spectra, while it remains at 0.3 Hz for the density spectra. (3) In spite of minor differences, similar results are found for the quasi-parallel and quasi-perpendicular magnetosheath. In addition, such spatial evolution of magnetosheath turbulence is found to be independent of the upstream solar wind conditions, e.g., the averaged Z-component of the interplanetary magnetic field and solar wind speed.
High-resolution Spectra for a Wide Range of Habitable Zone Planets around Sun-like Stars
Authors: Madden Jack , Kaltenegger Lisa 
Published: July 2020

Abstract
The search for life in the universe is currently focused on Earth-analog planets. However, we should be prepared to find a diversity of terrestrial exoplanets not only in terms of host star but also in terms of surface environment. Simulated high-resolution spectra of habitable planets covering a wide parameter space are essential in training retrieval tools, optimizing observing strategies, and interpreting upcoming observations. Ground-based extremely large telescopes like ELT, GMT, and TMT and future space-based mission concepts like Origins, HabEx, and LUVOIR are designed to have the capability of characterizing a variety of potentially habitable worlds. Some of these telescopes will use high-precision radial velocity techniques to obtain the required high-resolution spectra (R ≈ 100,000) needed to characterize potentially habitable exoplanets. Here we present a database of high-resolution (0.01 cm−1) reflection and emission spectra for simulated exoplanets with a wide range of surfaces, receiving similar irradiation as Earth around 12 different host stars from F0 to K7. Depending on surface type and host star, we show differences in spectral feature strength as well as overall reflectance, emission, and star-to-planet contrast ratio of terrestrial planets in the habitable zone of their host stars. Accounting for the wavelength-dependent interaction of the stellar flux and the surface will help identify the best targets for upcoming spectral observations in the visible and infrared. All of our spectra and model profiles are available online.
Collisionless Heat Flux Regulation via the Electron Firehose Instability in the Presence of a Core and Suprathermal Population in the Expanding Solar Wind
Authors: Innocenti Maria Elena , Boella Elisabetta , Tenerani Anna , Velli Marco 
Published: July 2020

Abstract
The evolution of the electron heat flux in the solar wind is regulated by the interplay between several effects: solar wind expansion, which can potentially drive velocity–space instabilities, turbulence, wave–particle interactions, and, possibly, collisions. Here we address the respective role played by the solar wind expansion and the electron firehose instability (EFI), developing in the presence of multiple electron populations, in regulating the heat flux. We carry out fully kinetic, expanding box model simulations and separately analyze the enthalpy, bulk, and velocity distribution function skewness contributions for each of the electron species. We observe that the key factor determining electron energy flux evolution is the reduction of the drift velocity of the electron populations in the rest frame of the solar wind. In our simulations, redistribution of the electron thermal energy from the parallel to the perpendicular direction after the onset of the EFI is observed. However, this process seems to impact energy flux evolution only minimally. Hence, reduction of the electron species drift velocity in the solar wind frame appears to directly correlate with efficiency for heat flux instabilities.
CTCV J2056-3014: An X-Ray-faint Intermediate Polar Harboring an Extremely Fast-spinning White Dwarf
Authors: Lopes de Oliveira R. , Bruch A. , Rodrigues C. V. , Oliveira A. S. , Mukai K. 
Published: July 2020

Abstract
We report on XMM-Newton X-ray observations that reveal CTCV J2056-3014 to be an unusual accretion-powered, intermediate polar (IP) system. It is a member of the class of X-ray-faint IPs whose space density remains unconstrained but potentially very high, with L

x,0.3–12 keV of 1.8 × 1031 erg s−1. We discovered a coherent 29.6 s pulsation in X-rays that was also revealed in our reanalysis of published optical data, showing that the system harbors the fastest-spinning, securely known white dwarf (WD) so far. There is no substantial X-ray absorption in the system. Accretion occurs at a modest rate (∼6 × 10−12
M
⊙ yr−1) in a tall shock above the WD, while the star seems to be spinning in equilibrium and to have low magnetic fields. Further studies of CTCV J2056-3014 potentially have broad implications on the origin of magnetic fields in WDs, on the population and evolution of magnetic cataclysmic variables, and also on the physics of matter around rapidly rotating magnetic WDs.