bluuebunny/crossref_metadata_2025_split huggingface dataset:
Dynamics of the Parker–Jeans Instability of Gaseous Disks Including the Effect of Cosmic Rays
Authors: Kuwabara Takuhito , Ko Chung-Ming 
Published: August 2020

Abstract
The effect of cosmic rays on the Parker–Jeans instability in magnetized self-gravitating gaseous disks is studied using three-dimensional magnetohydrodynamic simulations with cosmic rays taken as a massless fluid with notable pressure. Cosmic-ray diffusion along the magnetic field is taken into account in the simulation. The initial configuration of the disk is a magnetized cold gas slab sandwiched between hot coronae (on top and bottom). We show that cosmic rays play an important role in the formation of filaments or clumps in some parameter regimes. In a certain range of the thickness of the gas slab, the cosmic-ray diffusion coefficient plays a decisive role in determining whether the filaments lie along or perpendicular to the magnetic field. We also consider the effect of rotation on the system.
Testing the Cosmic Opacity at Higher Redshifts: Implication from Quasars with Available UV and X-Ray Observations
Authors: Liu Tonghua , Cao Shuo , Biesiada Marek , Liu Yuting , Geng Shuaibo , Lian Yujie 
Published: August 2020

Abstract
In this paper, we present a cosmological model-independent test for the cosmic opacity at high redshifts (z ∼ 5). We achieve this with the opacity-dependent luminosity distances derived from the nonlinear relation between X-ray and UV emissions of quasars, combined with two types of opacity-independent luminosity distances derived from the Hubble parameter measurements and simulated gravitational wave (GW) events achievable with the Einstein Telescope (ET). In the framework of two phenomenological parameterizations adopted to describe cosmic opacity at high redshifts, our main results show that a transparent universe is supported by the current observational data at a 2σ confidence level. However, the derived value of the cosmic opacity is slightly sensitive to the parameterization of τ(z), which highlights the importance of choosing a reliable parameterization to describe the optical depth τ(z) in the early universe. Compared with previous works, the combination of the quasar data and the H(z)/GW observations in similar redshift ranges provides a novel way to confirm a transparent universe (ϵ = 0 at higher redshifts z ∼ 5), with an accuracy of Δϵ ∼ 10−2. More importantly, our findings indicate that a strong degeneracy between the cosmic-opacity parameter and the parameters characterizing the L
UV − L

X
relation of quasars, which reinforces the necessity of proper calibration for this new type of high-redshift standard candle (in a cosmological model-independent way).
A Black Hole Feedback Valve in Massive Galaxies
Authors: Voit G. Mark , Bryan Greg L. , Prasad Deovrat , Frisbie Rachel , Li Yuan , Donahue Megan , O’Shea Brian W. , Sun Ming , Werner Norbert 
Published: August 2020

Abstract
Star formation in the universe’s most massive galaxies proceeds furiously early in time but then nearly ceases. Plenty of hot gas remains available but does not cool and condense into star-forming clouds. Active galactic nuclei (AGNs) release enough energy to inhibit cooling of the hot gas, but energetic arguments alone do not explain why quenching of star formation is most effective in high-mass galaxies. In fact, optical observations show that quenching is more closely related to a galaxy’s central stellar velocity dispersion (σ

v
) than to any other characteristic. Here we show that high σ

v
is critical to quenching because a deep central potential well maximizes the efficacy of AGN feedback. In order to remain quenched, a galaxy must continually sweep out the gas ejected from its aging stars. Supernova heating can accomplish this task as long as the AGN sufficiently reduces the gas pressure of the surrounding circumgalactic medium (CGM). We find that CGM pressure acts as the control knob on a valve that regulates AGN feedback and suggest that feedback power self-adjusts so that it suffices to lift the CGM out of the galaxy’s potential well. Supernova heating then drives a galactic outflow that remains homogeneous if

. The AGN feedback can effectively quench galaxies with a comparable velocity dispersion, but feedback in galaxies with a much lower velocity dispersion tends to result in convective circulation and accumulation of multiphase gas within the galaxy.
Astrophysical Distance Scale. II. Application of the JAGB Method: A Nearby Galaxy Sample
Authors: Freedman Wendy L. , Madore Barry F. 
Published: August 2020

Abstract
We apply the near-infrared J-region asymptotic giant branch (JAGB) method, recently introduced by Madore & Freedman, to measure the distances to 14 nearby galaxies out to 4 Mpc. We use the geometric detached eclipsing binary (DEB) distances to the LMC and SMC as independent zero-point calibrators. We find excellent agreement with previously published distances based on the tip of the red giant branch (TRGB): the JAGB distance determinations (including the LMC and SMC) agree in the mean to within

mag, just over 1%, where the TRGB I-band zero-point is M

I
= −4.05 mag. With further development and testing, the JAGB method has the potential to provide an independent calibration of Type Ia supernovae, especially with the James Webb Space Telescope. The JAGB stars (with M

J
= −6.20 mag) can be detected farther than the fainter TRGB stars, allowing greater numbers of calibrating galaxies for the determination of H
0. Along with the TRGB and Cepheids, JAGB stars are amenable to theoretical understanding and further refined empirical calibration. A preliminary test shows little dependence, if any, of the JAGB magnitude on metallicity of the parent galaxy. These early results suggest that the JAGB method has considerable promise for providing high-precision distances to galaxies in the local universe that are independent of distances derived from the Leavitt Law and/or the TRGB method, and it has numerous and demonstrable advantages over the possible use of Mira variables.
Tidal Currents Detected in Kraken Mare Straits from Cassini VIMS Sun Glitter Observations
Authors: Heslar Michael F. , Barnes Jason W. , Soderblom Jason M. , Seignovert Benoît , Dhingra Rajani D. , Sotin Christophe 
Published: August 2020

Abstract
We present Cassini Visual and Infrared Mapping Spectrometer (VIMS) observations of sun glitter—wave-induced reflections from a liquid surface offset from a specular point—on Kraken Mare. Sun glitter reveals rough sea surfaces around Kraken Mare, namely the coasts and narrow straits. The sun glitter observations indicate wave activity driven by the winds and tidal currents in Kraken Mare during northern summer. T104 Cassini VIMS observations show three sun glitter features in Bayta Fretum indicative of variegated wave fields. We cannot uniquely determine one source for the coastal Bayta waves, but we lean toward the interpretation of surface winds, because tidal currents should be too weak to generate capillary–gravity waves in Bayta Fretum. T105 and T110 observations reveal wave fields in the straits of Seldon Fretum, Lulworth Sinus, and Tunu Sinus that likely originate from the constriction of tidal currents. Coastlines of Bermoothes and Hufaidh Insulae adjoin rough sea surfaces, suggesting a complex interplay of wind-roughened seas and localized tidal currents. Bermoothes and Hufaidh Insulae may share characteristics of either the Torres Strait off Australia or the Åland region of Finland, summarized as an island-dense strait with shallow bathymetry that hosts complex surface circulation patterns. Hufaidh Insulae could host seafloor bedforms formed by tidal currents with an abundant sediment supply, similar to the Torres Strait. The coastlines of Hufaidh and Bermoothes Insulae likely host ria or flooded coastal inlets, suggesting that the Insulae may be local peaks of primordial crust isolated by an episode of sea-level rise or tectonic uplift.
Que fait donné à moment dans à un moment donné ? Quelques réflexions à partir du ORFÉO
Authors: Le Draoulec Anne , Rebeyrolle Josette 
Published: August 2020

Le présent article porte sur la pragmaticalisation de la locution temporelle à un moment donné , et, plus particulièrement, sur l’une des principales questions que laissait en suspens une étude antérieure : la question du rôle de l’adjectif donné , dont nous faisons l’hypothèse qu’il joue en faveur d’une implication subjective plus grande (favorisant ainsi la pragmaticalisation de la locution). Nous nous proposons de vérifier cette hypothèse par un examen systématique de à un moment donné vs à un moment , en nous appuyant sur la partie orale du Corpus d’Étude pour le Français Contemporain . Nous prendrons également en considération d’autres variantes possibles : variantes avec il y a ( il y a un moment ( donné )) ou sans la préposition à ( un moment ( donné )).
Feto-Maternal Outcome in Caesarean Sections Performed in Second Stage of Labour
Authors: Thirukumar M. 
Published: August 2020

The second stage caesarean section is associated increased maternal and foetal morbidity due to its inherent technical difficulties. This was a prospective observational study of 25 cases of caesarean sections done in second stage of labour in Teaching Hospital Batticaloa, Sri Lanka. The main aim of the study was to identify the maternal and perinatal outcomes of second stage caesarean sections. The findings of this study will help for auditing of current practices and improve the standards of care. Blood stained urine was the major complication observed in 60% of patients followed by difficulty in extraction of the baby in 48%. The lower uterine segment tear and angle extension were observed in 12% of patients; PPH and Broad ligament hematoma were noted in one in each patient. Mean duration of hospital stay is 2.28 days. Longer duration was 5 days as she underwent total abdominal hysterectomy due to extensive uterine tears during caesarean section. All the babies had APGAR score of more than 7 at 5 minutes. Nearly 20% (n=5) of the babies were admitted to PBU, among them one required neonatal resuscitation at birth and two received IV antibiotics for possible sepsis. There were no maternal and neonatal mortality reported in this study.
Estímulos para o Processo de Aprendizagem: aproximação entre as pesquisas de Neurociências e as de Modelagem Matemática
Authors: Oliveira Júnior Francimar Gomes de , Rosa Claudia Carreira da 
Published: August 2020

Neste artigo, realizamos uma pesquisa bibliográfica com o objetivo de compreender o processo de aprendizagem descrito pelas pesquisas das Neurociências e aproximá-lo com as características oriundas do desenvolvimento das atividades de Modelagem Matemática. Neste sentido, evidenciamos os estímulos (significado, motivação e atenção), processo de conservação (repetição, elaboração e consolidação) e as funções executivas envolvidas no processo de aprendizagem de informações segundo os trabalhos neurocientíficos e, então evidenciamos as características oriundas do desenvolvimento de atividades Modelagem Matemática de acordo com Barbosa (2001) e Almeida e Dias (2004). Na aproximação percebemos indícios que as ações necessárias para o desenvolvimento de atividades de Modelagem Matemática permeiam todo o processo de aprendizagem de acordo com o que defende as Neurociências.
THE SOCIAL DIMENSION OF INCLUSIVE EDUCATION: SPECIAL ELEMENTARY SCHOOL PUPILS WITH MILD INTELLECTUAL DISABILITIES TALK ABOUT THEIR EXPERIENCE FROM A SOCIAL CO-EXISTENCE PROGRAM
Authors: Ilias Vasileiadis , Aikaterini Dadatsi , Spyros Koutras 
Published: August 2020

<p>Formally, inclusive education is part of the primary policies in the Greek educational system. However, pupils with intellectual disabilities still attend special schools and their socialization is mainly monitored through the implementation of social co-existence programs in the school setting. The present study aimed to explore the outcomes of a social co-existence program that was implemented in two co-located schools, a general education elementary school and a special education elementary school. Semi-structured interviews with the special education elementary school pupils were used for pre- and post-intervention assessments. Qualitative analyses of the data revealed important differentiations in the ways pupils with intellectual disabilities understood a) their social interaction with typically developing peers and b) acceptance by peers. In fact, the pupils with intellectual disabilities consistently acknowledged that participation in the social co-existence program enhanced their social interactions and improved acceptance by peer.</p><p> </p><p><strong> Article visualizations:</strong></p><p><img src="/-counters-/edu_01/0683/a.php" alt="Hit counter" /></p>
EXPERIÊNCIAS DE LEITORES COM O USO DO PODCAST
Authors: Alves de Medeiros Couto Francisca , Nonato de Oliveira Marcos 
Published: August 2020

Refletindo sobre experiências e crenças no ensino e aprendizagem, metodologias ativas e tecnologias digitais, este artigo investiga crenças e experiências construídas durante uma intervenção em sala de aula: projeto “Leitores que formam leitores”. Trata-se de uma investigação qualitativa e interpretativista, sustentada pela etnometodologia. Os participantes são oito alunos do 9º ano, o instrumento utilizado foi relato de experiências. Os resultados revelam crenças de que o projeto foi trabalhoso, porém produtivo; que promoveu experiências, pesquisas e produção (resenhas, blogs, podcasts) e resultados significativos. Reconhecemos que o estudo das experiências e crenças é considerado relevante para a compreensão dos processos que acontecem dentro da sala de aula. (MICCOLI, 2007). As dificuldades foram relacionadas ao trabalho colaborarativo. Estudos sobre experiências e crenças podem auxiliar na qualidade da educação. Vale destacar que considerar as crenças que alunos constroem a partir das experiências é fundamental para pensarmos em transformações nas práticas docentes (BARCELOS, 2004).
Palavras-chave: Experiências. Crenças. Tecnologias digitais. Aprendizagem baseada emprojetos.
PERSPEKTIF TEOLOGIS TERHADAP ETIKA BISNIS KRISTEN
Authors: Bambangan Malik 
Published: August 2020

Abstract: The perspective of the Christian faith in understanding the world of work is the same when it is involved in the work. In the business world, according to some opinions it is solely for profit. In the perspective of the Christian faith, business is a manifestation of one's faith responsibilities towards God and others. The perspective of the Christian faith in the business world must be understood as a service. Therefore, ethical business ethics in the perspective of Christian faith need to be understood and implemented based on the Word of God.
Abstrak: Sudut pandang iman Kristen dalam memahami dunia kerja adalah sama ketika terlibat di dalam pekerjaan tersebut. Dalam dunia bisnis menurut beberapa pendapat adalah semata-mata bertujuan mencari untung. Dalam perspektif iman Kristen melihat bisnis sebagai perwujudan tanggungjawab iman seseorang terhadap Tuhan dan sesama. Perspektif iman Kristen terhadap dunia bisnis mesti dipahami sebagai suatu pelayanan. Oleh sebab itu etika berbinsnis dalam perpektif iman Kristen perlu dipahami dan dijalankan dengan berdasar pada Firman Tuhan.
The Factors of Decision in Taking Tertiary Education
Authors: Lailiyah Alfi Nur , Priyarsono Dominicus Savio , Probokawuryan Mutiara 
Published: August 2020

<p><em>The decision to access tertiary education is influenced by individual characteristics, household characteristics, and regional factors. This study aimed to examine the determinant of individual decision to access tertiary education based on individual characteristics, household characteristics, and regional factors. The respondents of the study were 19 years old or above and already finished secondary education. This study used secondary data from data Indonesian Family Life Survey (IFLS) 5. Technique analysis used multinominal logit by samples that consist of 1.936 respondent. The result of this analysis showed that the individual characteristic that consist of UN score, Sex, and Occupational status while study has significant impact on the choice to access undergraduate study. Likewise, on the household characteristics that consist of educational assistance from non government, level of education of head of household, and the consumption per member of the family has significant impact to the choice to access diploma. In undergraduate education, only the UN score in individual characteristic that has significant impact. The household characteristics were consist of educational assistance from government and non-government, the level of education of head of household, the consumption per member of the family, and dependency ratio impact significantly on the choice to access undergraduate study.</em></p><p><strong><em>JEL Classification: </em></strong>I20, I21, I25</p><p><strong><em>Keywords: </em></strong><em>Household Characteristics</em><em>, </em><em>Individual Characteristics, Indonesia Family Life Survey,</em><em> </em><em>Multinomial Logit, Regional Factors, Tertiary Education</em></p>
PUBLIC PERCEPTION OF THE VEHICLE OWNERSHIP TRANSFER FEES (BBNKB) INCREMENT POLICY IN BANDAR LAMPUNG
Authors: Nairobi Nairobi 
Published: August 2020

<p><em>The aim of the study is to estimate the number of vehicles with </em><em>Lampung outside p</em><em>olice numbers</em><em> </em><em>operating in Lampung and to find</em><em> </em><em>out the public perceptions</em><em> </em><em>of</em><em> </em><em>the Lampung</em><em> </em><em>Provincial</em><em> </em><em>Government's policy through </em><em>Local Regulations</em><em> </em><em>Number</em><em> 2 of 2011</em><em>, </em><em>regarding the increase in v</em><em>ehicle ownership transfer fees</em><em> (BBNKB) from 10 percent to 12.5 percent, along with willingness to pay from the policy. This research applies survey method in Bandar Lampung</em><em> </em><em>city with the population of the people who are the owner of new motor</em><em> </em><em>vehicles including the four-wheeled and two-</em><em>w</em><em>heeled which were</em><em> </em><em>purchased starting</em><em> </em><em>in</em><em> </em><em>20</em><em>1</em><em>2 outside</em><em> </em><em>the province</em><em> o</em><em>f Lampung</em><em>. </em><em>The sampling method used is cluster sampling, meaning that the population is divided into several clusters. As the population of vehicles which have no BE police number operating in Lampung is unknown, then the number of the sample is set to 100 respondents.</em><strong><em></em></strong></p><p><em>Based on the result of the survey, it is unravelled that there are 18 percent of cars which have non-BE plate number operating in Lampung, and for motorcycles, there are only 4 percent. Another finding shows the fact that respondents buy vehicles outside the province of Lampung because the price difference is quite significant and they do not do second BNKB in Lampung Province in accordance with its operational area. From the willingnes to pay, all respondents approve that if the rate of BBNKB decreases back to 10 percent, most of them will return to buy a new vehicle in Lampung due to the fact that there will be smaller price difference between the price of a new car purchased in Lampung Province and new car purchased outside Lampung Province. BBNKB tariff reduction will provide opportunities for trade of vehicles in Lampung Province to be more competitive, thus, they can develop better. Moreover, there will be more exciting investments and more job fields in the automotive sector.</em><em></em></p><p><strong><em>JEL Classification: </em></strong><em>H20,<strong> </strong>H21, H24</em></p><p><strong><em>Keywords: </em></strong><em>BBNKB Tariff, Public Perception, Willingness to Pay</em></p>
Aplikasi Sistem Pakar Mendiagnosa Gizi Buruk Pada Anak Dengan Metode Dempster-Shafer Berbasis Web
Authors: Hamid Mustamin , Ibrahim Adelina , Lausi Fadril M 
Published: August 2020

Abstrak : Sistem pakar adalah sistem berbasis komputer yang menggunakan pengetahuan, fakta, dan teknik penalaran dalam memecahkan masalah yang biasanya hanya dapat dipecahkan oleh pakar bidang tertentu. Puskesmas Ome Kota Tidore Kepulauan Selama ini, untuk mendata gizi buruk pada anak-anak melakukannya secara manual. Sehingga membutuhkan waktu yang lama. Peniltian ini bertujuan merancang aplikasi sistem pakar untuk menentukan status gizi buruk pada anak dengan menggunakan metode dempster-shafer, dimana ada beberapa jenis gizi buruk yang biasa dialami oleh anak, karena itu dalam kasus ini ada 3 jenis gizi buruk yang dibahas, yaitu marasmus (kekurangan energi), khowarsiorkor (kekurangan protein), dan marasmus-khowarsiorkor (kekurangan protein dan energi), yang digunakan untuk mengkombinasikan potongan informasi yang terpisah (bukti) untuk mengkalkulasi kemungkinan dari suatu peristiwa. Dengan adanya penelitian ini diharapkan dapat memudahkan pihak puskesmas dalam mengelola dan melacak gizi buruk pada anak-anak di Puskesmas Ome Kota Tidore Kepulauan.Kata kunci : Sistem Pakar, Gizi Buruk, Dempster-Shafer, WebsiteAbstract : Expert system is a computer-based system that uses knowledge facts, and reasoning in solving problems which usually can only be solved by an expert on a particular field, ome community health center of tidore island city, to register a malnutrition in children do it manually, So it takes a long time. This research aims to design an application expert system to determine the status of malnutrition in children using dempster-shafer, where there are several types of malnutrition that is commonly experienced by children, therefore in this case there are 3 types of malnutrition are discussed is marasmus (lack of energy), khowarsiorkor (protein deficiency), and marasmus-khowarsiorkor (lack of protein and energy), used to combine separate pieces of information (evidence) to calculate the probability of an event. The existence of this research are expected to make it easier for parties to seek in managing and keep track of malnutrition in children in Ome community health center of tidore island cityKeywords : Expert Sistem,Malnutrition,Dempster-Shafer, Website