bluuebunny/crossref_metadata_2025_split huggingface dataset:
On the Importance of Wave–Planet Interactions for the Migration of Two Super-Earths Embedded in a Protoplanetary Disk
Authors: Cui Zijia , Papaloizou John C. B. , Szuszkiewicz Ewa 
Published: November 2021

Abstract
We investigate a repulsion mechanism between two low-mass planets migrating in a protoplanetary disk, for which the relative migration switches from convergent to divergent. This mechanism invokes density waves emitted by one planet transferring angular momentum to the coorbital region of the other and then directly to it through the horseshoe drag. We formulate simple analytical estimates, which indicate when the repulsion mechanism is effective. One condition for a planet to be repelled is that it forms a partial gap in the disk and another is that this should contain enough material to support angular momentum exchange with it. Using two-dimensional hydrodynamical simulations, we obtain divergent migration of two super-Earths embedded in a protoplanetary disk because of repulsion between them and verify these conditions. To investigate the importance of resonant interaction, we study the migration of planet pairs near first-order commensurabilities. It appears that proximity to resonance is significant but not essential. In this context we find repulsion still occurs when the gravitational interaction between the planets is removed, suggesting the importance of angular momentum transfer through waves excited by another planet. This may occur through the scattering of coorbital material (the horseshoe drag), or material orbiting close by. Our results indicate that if conditions favor the repulsion between two planets described above, we expect to observe planet pairs with their period ratios greater, often only slightly greater, than resonant values or possibly rarity of commensurability.
The Nonrelaxation of Magnetic Field Lines in Solar Wind Magnetic Reconnection Exhausts
Authors: Xu Jiaying , Xu Xiaojun , Ye Yudong , Chang Qing , Xu Qi 
Published: November 2021

Abstract
We present a case study using data from multiple spacecraft and statistics from the ACE spacecraft to investigate the relaxation of reconnected magnetic field lines in solar wind magnetic reconnection exhausts, which constitute one of the two outflow regions resulting from magnetic reconnection, and which are often characterized by a plasma jet, magnetic strength depletion, and density and temperature enhancements. The normal magnetic fractions (∣B

n
/B∣) of the reconnection exhausts are used to indicate the degrees of relaxation of the magnetic field lines. 97 out of 98 reconnection exhausts have a relatively small ∣B

n
/B∣ (<0.3), while only one exhaust associated with a relatively small interplanetary coronal mass ejection has a large ∣B

n
/B∣ of 0.85. This result demonstrates the nonrelaxed nature of reconnected magnetic field lines in solar wind, due to the open boundary condition. As a consequence, the magnetic tension of such nonrelaxed magnetic field lines can accelerate the local plasma to produce the observed jet within the reconnection exhaust. Our results support the understanding that most solar wind reconnection exhausts are probably initiated near the Sun, where the plasma beta is low, and that they are not ongoing when they are observed at 1 au, because of the solar wind expansion from near the Sun to 1 au.
Modeling Radio Recombination in MWC 349A. I. Saturation Properties
Authors: Tran Hung N. , Dinh-V-Trung  , Bui Hai V. , Pham Bang D. , Thanh-Bao-Nguyen T. 
Published: November 2021

Abstract
Strong nonlocal thermodynamic equilibrium recombination line emission from the envelope of MWC 349A has been studied observationally and theoretically and has been used to derive information about the physical and kinematic properties of the circumstellar environment around this object. In this paper, we construct a detailed model of radiative transfer of the commonly observed maser lines H26α and H30α in MWC 349A, specifically taking into account the effect of maser saturation. The envelope is modeled as a combination of an ionized Keplerian rotating disk and a disk wind expanding at a velocity of 60 km s−1. Our modeling results show that millimeter-line H26α is significantly affected by the saturation effect. The line intensity is predicted to be greatly reduced in comparison with previous models which ignore the saturation effect. The H30α maser is predicted to be unsaturated. Our model shows that the predicted intensity and line shape are in agreement with observations. The predicted position–velocity diagrams are also consistent with observations and the interpretation that the H26α maser appears at smaller radii in comparison to the H30α maser. We also emphasize that the wind component is important in shaping the line profiles of the recombination masers.
Estimating the Contribution of Foreground Halos to the FRB 180924 Dispersion Measure
Authors: Simha Sunil , Tejos Nicolas , Prochaska J. Xavier , Lee Khee-Gan , Ryder Stuart D. , Cantalupo Sebastiano , Bannister Keith W. , Bhandari Shivani , Shannon Ryan M. 
Published: November 2021

Abstract
Fast radio burst (FRB) dispersion measures (DMs) record the presence of ionized baryons that are otherwise invisible to other techniques enabling resolution of the matter distribution in the cosmic web. In this work, we aim to estimate the contribution to FRB 180924 DM from foreground galactic halos. Localized by ASKAP to a massive galaxy, this sightline is notable for an estimated cosmic web contribution to the DM (DMcosmic =220 pc cm−3), which is less than the average value at the host redshift (z = 0.3216) estimated from the Macquart relation (280 pc cm−3). In the favored models of the cosmic web, this suggests few intersections with foreground halos at small impact parameters (≲100 kpc). To test this hypothesis, we carried out spectroscopic observations of the field galaxies within ∼1′ of the sightline with VLT/MUSE and Keck/LRIS. Furthermore, we developed a probabilistic methodology that leverages photometric redshifts derived from wide-field DES and WISE imaging. We conclude that there is no galactic halo that closely intersects the sightline and also that the net DM contribution from halos DMhalos < 45 pc cm−3 (95% c.l.). This value is lower than the DMhalos estimated from an “average” sightline (121 pc cm−3) using the Planck ΛCDM model and the Aemulus halo mass function and reasonably explains its low DMcosmic value. We conclude that FRB 180924 represents the predicted majority of sightlines in the universe with no proximate foreground galactic halos. Our framework lays the foundation for a comprehensive analysis of FRB fields in the near future.
Le serious game comme outil de développement des activités managériales : quand la technologie sert d’instrument médiateur à la délibération des pratiques et du métier
Authors: Keusch-Bessard Manon , Bobillier-Chaumon Marc-Éric , Vacherand-Revel Jacqueline , Cuvillier Bruno 
Published: November 2021

Dans le contexte pandémique actuel, les pratiques professionnelles se voient bouleversées. La formation tient un rôle essentiel pour répondre à cette urgence, et les nouvelles technologies une place de choix pour répondre aux besoins à distance. Cette recherche s’inscrit dans un projet de recherche visant la conception d’un serious game de formation managériale. Considérant que ce type de support ne se suffit pas à lui-même, nous avons construit un dispositif d’accompagnement humain s’appuyant sur les situations simulées virtuellement. Fondé sur le processus de réflexivité essentiel à l’activité managériale (Delavallée, 2006), il est conçu de manière longitudinale et sur des allers-retours entre expériences simulées et réelles et entre des espaces collectifs et individuels pour déclencher le co-développement. L’ensemble du dispositif de formation a permis aux managers participants de déconstruire individuellement des savoirs mobilisables dans, par et sur l’action et de les reconstruire collectivement sous trois formes : humaines, matérielles et symboliques.
Microprogramme en pédagogie de l’enseignement supérieur pour les enseignants : incidences sur la motivation et les stratégies d’apprentissage des étudiants
Authors: Cabana Mélanie , Bédard Denis 
Published: November 2021

Depuis 2009, les enseignants de l’Université de Sherbrooke et d’autres établissements sont de plus en plus nombreux à solliciter la formation offerte au Microprogramme de 3e cycle en pédagogie de l’enseignement supérieur (MPES). À travers cette formation, ils sont invités à se plonger au cœur d’une démarche réflexive centrée sur l’apprentissage étudiant. Quels sont les impacts de cette « formation longue »? Notre étude a pour objectif de mesurer les incidences de ce programme de formation sur la motivation et les stratégies d’apprentissage des étudiants ayant suivi les cours d’enseignants formés par le MPES. Les données perceptuelles recueillies auprès de 252 étudiants inscrits dans six programmes de formation différents (enseignement préscolaire et primaire, enseignement collégial, politiques appliquées, chimie, informatique et génie) montrent que les enseignants formés à la pédagogie de l’enseignement supérieur ont proposé des exposés et des activités favorisant le maintien de la motivation de leurs étudiants tout au long du semestre. Les données révèlent également que les enseignants ont aussi utilisé des pédagogies actives favorisant l’usage de stratégies de contextualisation, de sélection de l’information principale et de régulation chez leurs étudiants. De façon plus particulière, il ressort que les enseignants issus des programmes en enseignement préscolaire et primaire, de même qu’en enseignement collégial ont contribué à rehausser significativement la motivation de leurs étudiants. De plus, les enseignants de ces programmes ont favorisé une augmentation significative de la fréquence d’utilisation de stratégies d’apprentissage variées en contextualisant leurs exposés et en proposant des pédagogies actives.
Evaluating the Effect of Concussion-Education Programs on Intent to Report Concussion in High School Football
Authors: Daneshvar Daniel H. , Yutsis Maya , Baugh Christine M. , Pea Roy D. , Goldman Shelley , Grant Gerald A. , Ghajar Jamshid , Sanders Lee M. , Chen Christine L. , Tenekedjieva Lea-Tereza , Gurrapu Shravya , Zafonte Ross , Sorcar Piya 
Published: November 2021

Context
Concussion underreporting leads to delays in diagnosis and treatment, prolonging recovery time. Athletes' self-reporting of concussion symptoms, therefore, reduces risk.

Objective
To evaluate the effectiveness of 3 concussion-education programs in improving concussion-reporting intention.

Design
Randomized controlled clinical trial.

Setting
Three high schools in California.

Patients or Other Participants
A total of 118 male football players (age = 14.88 ± 1.19 years).

Intervention(s)
Participants were randomly assigned to receive concussion education via CrashCourse (CC), Centers for Disease Control and Prevention (CDC) video education materials (CDC-Vi), or CDC written education materials (CDC-Wr).

Main Outcome Measure(s)
The primary outcome was concussion-reporting intention, which was assessed at baseline, immediately after education, and at 1-month follow-up. Secondary outcomes were concussion knowledge, concussion-reporting attitudes, perceived concussion-reporting norms, and perceived behavioral control.

Results
Across all education formats, a total sample of athletes improved in concussion-reporting intention at immediate and 1-month follow-ups (mean improvements = 6.8% and 11.4%, respectively; F4,224 = 11.1, P &lt; .001). Similar findings were observed across all education formats in secondary analyses examining knowledge, attitudes, and perceived behavioral control. However, we noted differences in concussion-reporting intention by education format and time (F4,224 = 2.8, P = .03). Post hoc analysis showed that athletes who received CC had increased concussion-reporting intentions at immediate and 1-month follow-ups (baseline = 4.7, immediate follow-up = 6.1, 1-month follow-up = 6.0; F16,61.1 = 6.1, P = .007) compared with increases only at 1-month follow-up for CDC-Vi (baseline = 4.3, immediate follow-up = 5.2, 1-month follow-up = 5.8; F1.6,61.6 = 8.4, P = .001) and no improvement for CDC-Wr (P = .10). Secondary analyses indicated differences between CC and both CDC interventions in concussion knowledge and attitudes at immediate and 1-month follow-ups. We identified no differences in perceived behavioral control among interventions (F4,216 = 0.2, P = .93) or perceived concussion-reporting norms across (F4,224 = 0.3, P = .73) or among (F4,224 = 1.7, P = .15) interventions.

Conclusions
All athletes exhibited an improved intent to report concussions, increased concussion knowledge, better concussion attitudes, and more perceived behavioral control at both immediate and 1-month follow-ups. However, athletes randomized to receive CC reported a greater intent to report concussion, more knowledge, and improved concussion-reporting attitudes when compared with those who received CDC-Vi and CDC-Wr.
Bicolor angelfish (Centropyge bicolor) provides the first chromosome-level genome of the Pomacanthidae family
Authors: Li Chunhua , Yang Xianwei , Shao Libin , Zhang Rui , Liu Qun , Zhang Mengqi , Liu Shanshan , Pan Shanshan , Xue Weizhen , Wang Congyan , Mao Chunyan , Zhang He , Fan Guangyi 
Published: November 2021

The Bicolor Angelfish, Centropyge bicolor, is a tropical coral reef fish. It is named for its striking two-color body. However, a lack of high-quality genomic data means little is known about the genome of this species. Here, we present a chromosome-level C. bicolor genome constructed using Hi-C data. The assembled genome is 650 Mbp in size, with a scaffold N50 value of 4.4 Mbp, and a contig N50 value of 114 Kbp. Protein-coding genes numbering 21,774 were annotated. Our analysis will help others to choose the most appropriate de novo genome sequencing strategy based on resources and target applications. To the best of our knowledge, this is the first chromosome-level genome for the Pomacanthidae family, which might contribute to further studies exploring coral reef fish evolution, diversity and conservation.
The role of unions in solving industrial relations problems at Pt. Pos Indonesia (Persero) Bandung Head Office
Authors: Rachmawati Rr. , Lamury Rafical N.A. , Azis Yunia Mulyani 
Published: November 2021

In this study the researcher wanted to know how important the roles carried out by trade unions for employees, as well as the problems related to industrial relations, where the problems of industrial relations became a hot issue discussed in the corporate environment. In this research, the role of trade unions and problems in industrial relations were examined. The object of this research is employees at PT. Pos Indonesia (Persero), the center of Bandung, has 80 people using census techniques. This study uses a questionnaire as a data collection tool. The test used to test the research instrument in the form of validity and reliability testing. Data analysis using simple linear regression analysis, correlation coefficient. The results show that the role of trade unions in solving industrial relations problems is in the sufficient category. The results of the calculation of the correlation, the variable union (X) against the variable industrial relations (Y) of 0.773 means that both variables have a positive and significant relationship. The coefficient of determination is 59.7% while the remaining 40.3% is influenced by other variables not examined in this study. Thus, the role carried out by trade unions is very important, but in carrying out its functions, trade unions have not been optimal in their duties to defend employee rights.
An Evaluation of Internal Defects and Their Effect on Trunk Surface Temperature inCasuarina equisetifoliaL. (Casuarinaceae)
Authors: Burcham Daniel C. , Leong Eng-Choon , Fong Yok-King , Tan Puay-Yok 
Published: November 2021

AbstractTree risk assessment is important when communities choose to cultivate trees near people and property, and many tools may be used to enhance these assessments. The effectiveness of determining internal tree stem condition by measuring trunk surface temperatures with infrared cameras was assessed in this study. The trunk surface temperature of 48Casuarina equisetifoliawas evaluated; the trees were felled and dissected to quantify internal stem defects; and a mixed-methods approach was employed to determine the presence of defects. In total, 27% of trees were decayed, 62% discolored, 6% cavitated by termite infestations, and 2% undamaged. Qualitative visual evaluation of the infrared images revealed the close association of external stem features, opposed to internal defects, with surface temperature distributions. External features, such as cankers, detached bark, and mechanical damage, were associated with temperature anomalies. The trees’ internal condition accounted for a small percentage of the variability in evaluated temperature measurements (r2= 0.001-0.096). Overall, no clear relationship was found between the extent of internal defects and surface temperature distributions. These results are practically important for the arboricultural professional community because they show the technique does not provide accurate results about the internal condition of trees.
HUBUNGAN PENGETAHUAN IBU POST PARTUM TENTANG BREAST CARE TERHADAP BENDUNGAN ASI DI KLINIK JULIANA DALIMUNTHE
Authors: Ilawati Sri 
Published: November 2021

Breast care (perawatan payudara) merupakan bagian penting yang diperhatikan sebagai persiapan untuk pemberian ASI. Tujuan penelitian ini untuk mengidentifikasi hubungan pengetahuan ibu post partum tentang breast care terhadap bendungan ASI. Desain penelitian ini bersifat Kolerasi yaitu dengan pendekatan cross-sectional.Populasi penelitian adalah seluruh ibu post partum sebayak 20. Dengan teknik pengambilan sampel penelitian menggunakan totalsampling.Waktu dan tempat penelitian dari oktober-desember 2020 di Klinik Juliana Dalimunthe Medan. Intrumen penelitian menggunakan lembar kuesioner, analisa data univariat dan bivariat. Dari hasil penelitian dapat dilihat mayoritas berada pada umur 21-30 sebanyak 25 orang (83%), mayoritas berada pada paritas scundigravida sebanyak 12 (40%), Dari segi pengetahuan ibu tentang breast care berpengaruh kurang sebanyak 17 orang (43%).Dari segi pengetahuan ibu tentang bendungan ASI pada ibu post partum berpengaruh kurang sebanyak 10 orang (33%).Hasil uji stastistik diperoleh nilai p (value) = 1,005 maka dapat disimpulkan bahwa ada hubungan pengetahuan ibu postpartum tentang Breast care terhadap bendungan ASI di Klinik Juliana Dalimunthe. Dari hasil uji statistik nilai yang diperoleh OR = 1,029, dalam artian responden yang berpengetahuan dapat lebih baik 1,002 kali bila di bandingkan dengan responden yang mempunyai pengetahuan kurang dari pengetahuan kurang. Hasil uji stastistik diperoleh nilai p (value) = 1,005 maka dapat disimpulkan bahwa ada hubungan pengetahuan ibu postpartum tentang Breastcare pada bendungan ASI di Klinik Juliana Dalimunthe Medan. Dari hasil uji statistik diperoleh bahwa nilai OR = 1,029 arti nya pada responden yang berpengetahuan dapat lebih baik 1,002 kali bila di bandingkan dengan responden yang mempunyai pengetahuan kurang dari pengetahuan kurang.
HydroBlocks v0.2: enabling a field-scale two-way coupling between the land surface and river networks in Earth system models
Authors: Chaney Nathaniel W. , Torres-Rojas Laura , Vergopolan Noemi , Fisher Colby K. 
Published: November 2021

Abstract. Over the past decade, there has been appreciable progress
towards modeling the water, energy, and carbon cycles at field scales
(10–100 m) over continental to global extents in Earth system models
(ESMs). One such approach, named HydroBlocks, accomplishes this task while
maintaining computational efficiency via Hydrologic Response Units (HRUs),
more commonly known as “tiles” in ESMs. In HydroBlocks, these HRUs are
learned via a hierarchical clustering approach from available global
high-resolution environmental data. However, until now there has yet to be
a river routing approach that is able to leverage HydroBlocks' approach to
modeling field-scale heterogeneity; bridging this gap will make it possible
to more formally include riparian zone dynamics, irrigation from surface
water, and interactive floodplains in the model. This paper introduces a
novel dynamic river routing scheme in HydroBlocks that is intertwined with
the modeled field-scale land surface heterogeneity. Each macroscale polygon
(a generalization of the concept of macroscale grid cell) is assigned its
own fine-scale river network that is derived from very high resolution
(∼ 30 m) digital elevation models (DEMs); the inlet–outlet reaches of a domain's
macroscale polygons are then linked to assemble a full domain's river
network. The river dynamics are solved at the reach-level via the kinematic
wave assumption of the Saint-Venant equations. Finally, a two-way coupling
between each HRU and its corresponding fine-scale river reaches is
established. To implement and test the novel approach, a 1.0∘ bounding
box surrounding the Atmospheric Radiation and Measurement (ARM) Southern
Great Plains (SGP) site in northern Oklahoma (United States) is used. The
results show (1) the implementation of the two-way coupling between the land
surface and the river network leads to appreciable differences in the
simulated spatial heterogeneity of the surface energy balance, (2) a limited
number of HRUs (∼ 300 per 0.25∘ cell) are required to
approximate the fully distributed simulation adequately, and (3) the surface
energy balance partitioning is sensitive to the river routing model
parameters. The resulting routing scheme provides an effective and efficient
path forward to enable a two-way coupling between the high-resolution river
networks and state-of-the-art tiling schemes in ESMs.
The bicentenary of Georg Hartung, a German pioneer geologist, explorer, and illustrator
Authors: Góis-Marques Carlos A. , Menezes de Sequeira Miguel , Madeira José 
Published: November 2021

Abstract. We present a tribute to Georg Friedrich Karl Hartung (1821–1891), a less-known, non-academic German geologist, on his 200th birthday anniversary. Influenced by eminent 19th century scientific
personalities, such as Oswald Heer, Charles Lyell, and Alexander von
Humboldt, he performed pioneer geological observations and sampling in the
Azores, Madeira, and Canary Islands volcanic archipelagos. Later in his life, he travelled to the USA and explored the Scandinavian countries. His scientific endeavours were published in several books and papers, many of them co-authored by academic German geologists and palaeontologists. His works on Macaronesia are deemed as classics, and many have been enriched by his detailed geological illustrations.