bluuebunny/crossref_metadata_2025_split huggingface dataset:
HD 191939: Three Sub-Neptunes Transiting a Sun-like Star Only 54 pc Away
Authors: Badenas-Agusti Mariona , Günther Maximilian N. , Daylan Tansu , Mikal-Evans Thomas , Vanderburg Andrew , Huang Chelsea X. , Matthews Elisabeth , Rackham Benjamin V. , Bieryla Allyson , Stassun Keivan G. , Kane Stephen R. , Shporer Avi , Fulton Benjamin J. , Hill Michelle L. , Nowak Grzegorz , Ribas Ignasi , Pallé Enric , Jenkins Jon M. , Latham David W. , Seager Sara , Ricker George R. , Vanderspek Roland K. , Winn Joshua N. , Abril-Pla Oriol , Collins Karen A. , Serra Pere Guerra , Niraula Prajwal , Rustamkulov Zafar , Barclay Thomas , Crossfield Ian J. M. , Howell Steve B. , Ciardi David R. , Gonzales Erica J. , Schlieder Joshua E. , Caldwell Douglas A. , Fausnaugh Michael , McDermott Scott , Paegert Martin , Pepper Joshua , Rose Mark E. , Twicken Joseph D. 
Published: August 2020

Abstract
We present the discovery of three sub-Neptune-sized planets transiting the nearby and bright Sun-like star HD 191939 (TIC 269701147, TOI 1339), a K

s
= 7.18 mag G8 V dwarf at a distance of only 54 pc. We validate the planetary nature of the transit signals by combining 5 months of data from the Transiting Exoplanet Survey Satellite with follow-up ground-based photometry, archival optical images, radial velocities, and high angular resolution observations. The three sub-Neptunes have similar radii (

,

, and

), and their orbits are consistent with a stable, circular, and coplanar architecture near mean-motion resonances of 1:3 and 3:4 (P
b = 8.88, P
c = 28.58, and P
d = 38.35 days). The HD 191939 system is an excellent candidate for precise mass determinations of the planets with high-resolution spectroscopy due to the host star’s brightness and low chromospheric activity. Moreover, the system’s compact and near-resonant nature can provide an independent way to measure planetary masses via transit timing variations while also enabling dynamical and evolutionary studies. Finally, as a promising target for multiwavelength transmission spectroscopy of all three planets’ atmospheres, HD 191939 can offer valuable insight into multiple sub-Neptunes born from a protoplanetary disk that may have resembled that of the early Sun.
The First Habitable-zone Earth-sized Planet from TESS. II. Spitzer Confirms TOI-700 d
Authors: Rodriguez Joseph E. , Vanderburg Andrew , Zieba Sebastian , Kreidberg Laura , Morley Caroline V. , Eastman Jason D. , Kane Stephen R. , Spencer Alton , Quinn Samuel N. , Cloutier Ryan , Huang Chelsea X. , Collins Karen A. , Mann Andrew W. , Gilbert Emily , Schlieder Joshua E. , Quintana Elisa V. , Barclay Thomas , Suissa Gabrielle , Kopparapu Ravi kumar , Dressing Courtney D. , Ricker George R. , Vanderspek Roland K. , Latham David W. , Seager Sara , Winn Joshua N. , Jenkins Jon M. , Berta-Thompson Zachory , Boyd Patricia T. , Charbonneau David , Caldwell Douglas A. , Chiang Eugene , Christiansen Jessie L. , Ciardi David R. , Colón Knicole D. , Doty John , Gan Tianjun , Guerrero Natalia , Günther Maximilian N. , Lee Eve J. , Levine Alan M. , Lopez Eric , Muirhead Philip S. , Newton Elisabeth , Rose Mark E. , Twicken Joseph D. , Villaseñor Jesus Noel 
Published: August 2020

Abstract
We present Spitzer 4.5 μm observations of the transit of TOI-700 d, a habitable-zone Earth-sized planet in a multiplanet system transiting a nearby M-dwarf star (TIC 150428135, 2MASS J06282325–6534456). TOI-700 d has a radius of

and orbits within its host star’s conservative habitable zone with a period of 37.42 days (T
eq ∼ 269 K). TOI-700 also hosts two small inner planets (R

b
=

and R

c
=

) with periods of 9.98 and 16.05 days, respectively. Our Spitzer observations confirm the Transiting Exoplanet Survey Satellite (TESS) detection of TOI-700 d and remove any remaining doubt that it is a genuine planet. We analyze the Spitzer light curve combined with the 11 sectors of TESS observations and a transit of TOI-700 c from the LCOGT network to determine the full system parameters. Although studying the atmosphere of TOI-700 d is not likely feasible with upcoming facilities, it may be possible to measure the mass of TOI-700 d using state-of-the-art radial velocity (RV) instruments (expected RV semiamplitude of ∼70 cm s−1).
A High Angular Resolution Survey of Massive Stars in Cygnus OB2: JHK Adaptive Optics Results from the Gemini Near-Infrared Imager
Authors: Caballero-Nieves S. M. , Gies D. R. , Baines E. K. , Bouchez A. H. , Dekany R. G. , Goodwin S. P. , Rickman E. L. , Roberts L. C. , Taggart K. , ten Brummelaar T. A. , Turner N. H. 
Published: August 2020

Abstract
We present results of a high angular resolution survey of massive OB stars in the Cygnus OB2 association that we conducted with the Near-Infrared Imager camera and ALTAIR adaptive optics system of the Gemini North telescope. We observed 74 O- and early-B-type stars in Cyg OB2 in the JHK infrared bands in order to detect binary and multiple companions. The observations are sensitive to equal-brightness pairs at separations as small as

, and progressively fainter companions are detectable out to

mag at a separation of 2″. This faint contrast limit due to read noise continues out to 10″ near the edge of the detector. We assigned a simple probability of chance alignment to each companion based upon its separation and magnitude difference from the central target star and upon areal star counts for the general star field of Cyg OB2. Companion stars with a field membership probability of less than 1% are assumed to be physical companions. This assessment indicates that 47% of the targets have at least one resolved companion that is probably gravitationally bound. Including known spectroscopic binaries, our sample includes 27 binary, 12 triple, and 9 systems with 4 or more components. These results confirm studies of high-mass stars in other environments that find that massive stars are born with a high-multiplicity fraction. The results are important for the placement of the stars in the Hertzsprung–Russell diagram, the interpretation of their spectroscopic analyses, and for future mass determinations through measurement of orbital motion.
The Kinematics of Massive Quiescent Galaxies at 1.4 < z < 2.1: Dark Matter Fractions, IMF Variation, and the Relation to Local Early-type Galaxies*
Authors: Mendel J. Trevor , Beifiori Alessandra , Saglia Roberto P. , Bender Ralf , Brammer Gabriel B. , Chan Jeffrey , Förster Schreiber Natascha M. , Fossati Matteo , Galametz Audrey , Momcheva Ivelina G. , Nelson Erica J. , Wilman David J. , Wuyts Stijn 
Published: August 2020

Abstract
We study the dynamical properties of massive quiescent galaxies at 1.4 < z < 2.1 using deep Hubble Space Telescope WFC3/F160W imaging and a combination of literature stellar velocity dispersion measurements and new near-infrared spectra obtained using the K-band Multi Object Spectrograph (KMOS) on the ESO Very Large Telescope. We use these data to show that the typical dynamical-to-stellar mass ratio has increased by ∼0.2 dex from z = 2 to the present day, and we investigate this evolution in the context of possible changes in the stellar initial mass function (IMF) and/or fraction of dark matter contained within the galaxy effective radius, f
DM[<r
e]. Comparing our high-redshift sample to their likely descendants at low redshift, we find that f
DM[<r
e] has increased by a factor of more than 4 since z ≈ 1.8, from f
DM[<r
e] = 6.6% ± 1.0% to ∼24%. The observed increase appears robust to changes in the methods used to estimate dynamical masses or match progenitors and descendants. We quantify possible variation of the stellar IMF through the offset parameter α, defined as the ratio of dynamical mass in stars to the stellar mass estimated using a Chabrier IMF. We demonstrate that the correlation between stellar velocity dispersion and α reported among quiescent galaxies at low redshift is already in place at z = 2, and we argue that subsequent evolution through (mostly minor) merging should act to preserve this relation while contributing significantly to galaxies’ overall growth in size and stellar mass.
Bar Classification Based on the Potential Map
Authors: Lee Yun Hee , Park Myeong-Gu , Ann Hong Bae , Kim Taehyun , Seo Woo-Young 
Published: August 2020

Abstract
We introduce a new approach to classify barred galaxies that utilizes the transverse-to-radial force ratio map (ratio map, hereafter) in a different manner from previous studies. When we display the ratio map in polar coordinates, barred galaxies appear as four aligned, horizontal thick slabs. This characteristic feature enables us to successfully classify barred and nonbarred galaxies with an accuracy of 87%. It yields a bar fraction of 53%, including both SBs and SABs, when applied to 884 nearby (z < 0.01) spiral galaxies from the Sloan Digital Sky Survey/DR7. It also provides the bar strength and length measurements, in particular, separated from the spiral arms. They show good correlations with the measures estimated from ellipse fitting and Fourier analysis. However, we find different tendencies of the bar strength measurements in terms of the Hubble sequence: as the Hubble sequence increases (toward late types), the bar strength and bar ellipticity increase, whereas the dipole Fourier amplitude decreases. We show that the bulge affects the estimation of the bar strength differently, depending on the classification methods. The bulge causes the bar length to be overestimated in all three methods. Meanwhile, we find that barred galaxies show two types of radial profiles of the angle-averaged force ratio: one has a maximum peak (type M) and the other a plateau (type P). Comparison with numerical simulations suggests that type-M bars are more mature than type-P bars in terms of evolutionary stage.
Testing the Kerr Black Hole Hypothesis Using X-Ray Reflection Spectroscopy and a Thin Disk Model with Finite Thickness
Authors: Abdikamalov Askar B. , Ayzenberg Dimitry , Bambi Cosimo , Dauser Thomas , García Javier A. , Nampalliwar Sourabh , Tripathi Ashutosh , Zhou Menglei 
Published: August 2020

Abstract
X-ray reflection spectroscopy is a powerful tool for probing the strong gravity region of black holes and can be used for testing general relativity in the strong field regime. Simplifications of the available relativistic reflection models limit the capability of performing accurate measurements of the properties of black holes. In this paper, we present an extension of the model relxill_nk in which the accretion disk has a finite thickness rather than being infinitesimally thin. We employ the accretion disk geometry proposed by Taylor & Reynolds and we construct relativistic reflection models for different values of the mass accretion rate of the black hole. We apply the new model to high-quality Suzaku data of the X-ray binary GRS 1915+105 to explore the impact of the thickness of the disk on tests of the Kerr metric.
Intrinsic Morphology of Ultra-diffuse Galaxies
Authors: Rong Yu , Dong Xiao-Yu , Puzia Thomas H. , Galaz Gaspar , Sánchez-Janssen Ruben , Cao Tianwen , van der Burg Remco F. J. , Sifón Cristóbal , Mancera Piña Pavel E. , Marcelo Mora , D’Ago Giuseppe , Zhang Hong-Xin , Johnston Evelyn J. , Eigenthaler Paul 
Published: August 2020

Abstract
With the published data of apparent axis ratios for 1109 ultra-diffuse galaxies (UDGs) located in 17 low-redshift (z ∼ 0.020–0.063) galaxy clusters and 84 UDGs in two intermediate-redshift (z ∼ 0.308–0.348) clusters, we take advantage of a Markov Chain Monte Carlo approach and assume a triaxial model to investigate the intrinsic morphologies of UDGs. In contrast to the conclusion of Burkert, i.e., the underlying shapes of UDGs are purely prolate (C = B < A), we find that the data favor the oblate-triaxial models (i.e., thick disks with

) over the nearly prolate ones. We also find that the intrinsic morphologies of UDGs are related to their stellar masses/luminosities, environments, and redshifts. First, the more luminous UDGs have puffier morphologies compared with the less luminous counterparts; the UDG morphologic dependence on luminosity is distinct from that of the typical quiescent dwarf ellipticals (dEs) and dwarf spheroidals (dSphs); in this sense, UDGs may not be simply treated as an extension of the dE/dSph class with similar evolutionary histories; they may differ not only in size. Second, the UDGs with smaller clustercentric distances are more puffed up, compared with the counterparts with larger clustercentric distances; in combination with the UDG thickness dependence on luminosity, the puffier morphologies of UDGs with high luminosities or located in the denser environments are very likely to be attributed to tidal interactions with massive galaxies. Third, we find that the intermediate-redshift UDGs are more flattened, compared with the low-redshift counterparts, which plausibly suggests a “disky” origin for the high-redshift, newly born UDGs.
« Mon bébé ne dort pas » : quelle écoute, quel soutien ?
Authors: Zaoui-Grattepanche Catherine 
Published: August 2020

La perception et l’accompagnement du sommeil du bébé et de l’enfant sont éminemment variables d’une culture, d’une époque et d’une famille à l’autre… Soutenir des parents en difficulté avec le sommeil de leur enfant nécessite une écoute attentive et la prise en compte de leurs perceptions, représentations et problématiques sous-jacentes.
Petits et gros bobos du sommeil
Authors: Genet Christine 
Published: August 2020

Le sommeil du tout-petit évolue au rythme de sa croissance, et il peut se dérégler sous l’effet de divers facteurs somatiques, relationnels et/ou environnementaux. Les troubles du sommeil du petit enfant ont un impact majeur sur son développement, sa santé et sur la qualité des interactions avec les parents, notamment en ce qui concerne le lien d’attachement ; il est primordial de les évaluer et de les traiter le plus tôt possible, par des actions de psychoéducation, de guidance interactive, voire de soin médical si besoin. Il est également important d’évaluer le degré de fatigue parentale, qui peut entraver la prise en charge.
Les nuits du bébé allaité… et de ses parents
Authors: Didierjean-Jouveau Claude 
Published: August 2020

Quand une mère qui allaite se plaint d’être fatiguée, de mal dormir, d’être réveillée par son bébé, il est fréquent qu’on lui réponde : « Passe au biberon, il dormira mieux », « donne-lui un biberon le soir, il ne se réveillera plus », « laisse-le pleurer un peu, il faut qu’il apprenne à faire ses nuits », etc. L’idée est bien ancrée chez nous que les bébés allaités (et leurs parents) dorment moins et moins bien que les bébés nourris au biberon. Pourtant, nombreuses sont les études montrant que les mères qui allaitent bénéficient en fait d’un meilleur sommeil, que ce soit en durée ou en qualité (plus de sommeil profond, plus réparateur).
Jair Messias Bolsonaro:
Authors: Alencar Gedeon Freire de 
Published: August 2020

O atual presidente do Brasil foi eleito com apoio majoritário de lideranças religiosas, assim, ele e seus apoiadores, entendem que foi “escolhido por Deus”. A ideia é que uma soberania divina controla e decide tudo, assim, a realidade é resultado, portanto, de um plano divino. Deus elege, controla e governa através de um “escolhido”. Usando a teorização weberiana da ação e interesse humano e o conceito do sociólogo Pierucci da “religião como solvente” veremos que as razões e motivações politicas podem ser mimetizadas como ações divinas.
Phoenix Rising from the Ashes: A Story of Successful Management of a Severe Paraquat Poisoning
Authors: Thineskaran P. , Selvaratnam G. , Kumanan T. , Suganthan N. 
Published: August 2020

Self-poisoning with pesticides is a major public health problem in many developing countries, accounting for up to one-third of all suicides worldwide according to recent estimates and Sri Lanka is not an exception. Here we reporting a case of paraquat poisoning in a 17-year-old-girl presented after self-ingestion. She developed oropharyngeal ulcers and clinical and laboratory evidence of multi organ damage. She was successfully treated with cyclophosphamide and steroid, initiated very early stage in addition to other supportive measurers. She made an uneventful recovery.
Inducible MicroRNA-217 Inhibits NF-κB– and IRF3-Driven Immune Responses in Lower Vertebrates through Targeting TAK1
Authors: Zhang Lei , Chu Qing , Chang Renjie , Xu Tianjun 
Published: August 2020

Abstract
Upon recognition of bacterial or viral components by pattern recognition receptors, cells could be activated to produce inflammatory cytokines, type I IFN, and IFN-stimulated genes. These antibacterial and antiviral immunities are tightly regulated by the host to prevent inappropriate immune responses. MicroRNAs (miRNAs) have emerged as an essential regulatory network with profound effects on mammalian inflammation and immune responses, but the regulatory networks of miRNA-mediated immune response in lower vertebrates remain largely unknown. In this study, we report a miRNA, miR-217, identified from miiuy croaker, which plays a negative role in host antiviral and antibacterial immunity. We found that miR-217 could be abundantly expressed upon Gram-negative bacteria, as well as rhabdovirus infection. Inducible miR-217 suppresses the production of inflammatory cytokines and type I IFN by targeting TAK1, thereby avoiding excessive inflammation. Particularly, we revealed that miR-217 modulates the antibacterial and antiviral immunity through TAK1-mediated NF-κB and IRF3 signaling pathways. The collective results indicate that miR-217 acts as a negative feedback regulator involved in host antibacterial and antiviral immune responses, which will provide insights into the intricate networks of host–virus interaction in lower vertebrates.
Mixing and average mixing times for general Markov processes
Authors: Anderson Robert M. , Duanmu Haosui , Smith Aaron 
Published: August 2020

AbstractYuval Peres and Perla Sousi showed that the mixing times and average mixing times of reversible Markov chains on finite state spaces are equal up to some universal multiplicative constant. We use tools from nonstandard analysis to extend this result to reversible Markov chains on compact state spaces that satisfy the strong Feller property.
STUDENTS WITH SPECIAL EDUCATIONAL NEEDS IN GREEK HIGHER EDUCATION: ICTS AS A VITAL TOOL FOR INCLUSION
Authors: Riga Asimina , Ioannidi Vasiliki , Papayiannis Nikolaos 
Published: August 2020

<p>The present paper intends to report and analyze ongoing practices and policies with respect to the inclusion of Students with Special Educational Needs (SEN) and/or disabilities into Higher Education in Greece. To achieve this goal, the researchers systematically searched the current literature sources to find out the extent to and the ways in which European priorities set by article 24 of the Convention on the Rights of Inclusion of Persons with Special Educational Needs and/or Disabilities, have been advocated by Greek educational policy within the Higher Education context. Actually, the literature review demonstrates the existing law framework of the Greek national and local policy whose purpose is to promote the development and implementation of digitally assisted services which ought to take into consideration the needs of students with learning disabilities and comply with the international strides calling for a broader inclusive education. The results of this review showed that Greek universities have endeavored to respond successfully to the Greek legislation’s mandates and to fully address anti-discriminatory practice. However, more adjustments and decisive progress steps have to be made in relation to the curriculum and to teachers’ professional training to ensure all students’ inclusion.</p><p> </p><p><strong> Article visualizations:</strong></p><p><img src="/-counters-/edu_01/0606/a.php" alt="Hit counter" /></p>
ELEMENTARY SCHOOL TEACHERS’ EXPERIENCES REGARDING THE PREREFERRAL PROCESS
Authors: Kizir Mine , Şahin Candan Hasret 
Published: August 2020

<p>Informing teachers about identifying students at risk is necessary and important for effective application of interventions in the pre-referral process. The purpose of this study was to determine the adaptations that elementary school teachers did for their students at risk in the pre-referral process and to determine these teachers’ experiences in the process. In this study, the phenomenological design was used to determine the elementary school teachers’ views about the pre-referral process and their experiences regarding the process. In the present study, which was conducted to determine elementary school teachers’ experiences and views about the pre-referral process, three themes were obtained as a result of the analysis of the data collected via the interviews. The themes were as follows: teachers’ experiences and views about the identification phase, instructional adaptations in the pre-referral process and overall thoughts and suggestions regarding the pre-referral process. Informing teachers about the pre-referral process and about what to do in this process will not only help decrease the number of students involved in referral process by increasing the in-class adaptations but also allow keeping the students in the same class who will be able to continue their education with their peers with help of in-class interventions.</p><p> </p><p><strong> Article visualizations:</strong></p><p><img src="/-counters-/edu_01/0651/a.php" alt="Hit counter" /></p>
COMIC STRIPS AND BOARD GAME AS A MEDIA IN LEARNING ORAL LANGUAGE SKILLS FOR STUDENTS
Authors: Annisa Puan Suri Mira , Nst Rafika Dewi 
Published: August 2020

This research aims to find out the improvement of the students’ oral language skills using comic strips and board game as an instructional media in terms of its physical feasibility, design, color, material, images and text by using role-playing. The subject was the 1 st grade students of the English department of Unimed, consisted of 30 students for the field trial. This research was use classroom action research by Kemmis and Taggart. It was accomplished in two cycles. Each cycles consisted of four steps: planning, action, observation and reflection. The first cycle consisted of one meeting including giving material and pretest. The second cycle consisted of one meeting, given material and post-test. Based on the students' assessment, it was showed that the mean of pre-test was 52 and the mean of post-test was 88. And the higher score was 92. From the data, it indicated that using Comic Strips and Board Game in learning Oral Language Skills was effective, and the data concluded that the students’ have the improvement in speaking. The results showed that comic strips and board game were very good and feasible to be used as a media to learn oral language skills.