bluuebunny/crossref_metadata_2025_split huggingface dataset:
PENGARUH KOMPETENSI, LINGKUNGAN KERJA, DAN KETERLIBATAN KARYAWAN TERHADAP KINERJA KARYAWAN PADA PT. BANK CENTRAL ASIA. TBK CABANG BANDA ACEH
Authors: Nuzulman Nuzulman , Febrina Febrina , Mahyuddin Mahyuddin 
Published: February 2021

Tujuan penelitian ini adalah untuk mengetahui pengaruh kompetesi, lingkungan kerja dan keterlibatan karyawan terhadap kinerja karyawan pada PT.Bank Cntral Asia. Tbk Cabang Banda Aceh. Ukuran sample penelitian ini sebanyak 50 karyawan. Data penelitian dikumpulkan melalui kuesioner dan studi dokumentasi. Pengujian hipotesis dengan uji F (serempak) dan uji t (parsial) untuk mengetahui pengaruh variabel independen terhadap variabel dependen pada tingkat kepercayaan 95% (Î± = 0,05). Hasil penelitian menunjukan bahwa secara uji simultan variabel independen berpengaruh terhadap variabel dependen. Sedangkan secara parsial, kompetensi dan lingkungan kerja berpengaruh terhadap kinerja, tetapi keterlibatan karyawan tidak berpengaruh terhadap kinerja karyawan pada PT. Bank Central Asia, Tbk cabang Banda Aceh.Kata Kunci: Kompetensi, Lingkungan Kerja, Keterlibatan Karyawan, Kinerja Karyawan,Â PT. Bank Central Asia, Tbk.
Space Weathering within C-complex Main Belt Asteroid Families
Authors: Thomas Cristina A. , Trilling David E. , Rivkin Andrew S. , Linder Tyler 
Published: February 2021

Abstract
Using data from the Sloan Digital Sky Survey Moving Object Catalog, we study color as a function of size for C-complex families in the main asteroid belt to improve our understanding of space weathering of carbonaceous materials. We find two distinct spectral slope trends: Hygiea type and Themis type. The Hygiea-type families exhibit a reduction in spectral slope with increasing object size until a minimum slope value is reached and the trend reverses with increasing slope with increasing object size. The Themis family shows an increase in spectral slope with increasing object size until a maximum slope is reached and the spectral slope begins to decrease slightly or plateaus for the largest objects. Most families studied show the Hygiea-type trend. The processes responsible for these distinct changes in spectral slope affect several different taxonomic classes within the C-complex and appear to act quickly to alter the spectral slopes of the family members.
Astrometric and Photometric Investigation of Three Old Age Open Clusters in the Gaia Era: Berkeley 32, Berkeley 98, and King 23
Authors: Sariya Devesh P. , Jiang Ing-Guey , Bisht D. , Yadav R. K. S. , Rangwal G. 
Published: February 2021

Abstract
Using the photometric and kinematical data from Gaia Data Release 2, three old open clusters namely Berkeley 32 (Be 32), Berkeley 98 (Be 98), and King 23 are investigated. The latter two of these clusters are poorly studied in the literature. The numbers of the most probable cluster members are 563, 260, and 114 for Be 32, Be 98, and King 23, respectively, with membership probabilities higher than 80% and lying within the clusters’ limiting radii. Mean proper motions (PMs;

and μ

δ
) of the clusters are determined as (−0.34 ± 0.008, −1.60 ± 0.006), (−1.34 ± 0.007, −3.22 ± 0.008), and (−0.46 ± 0.009, −0.87 ± 0.012) mas yr−1. The errors mentioned in the PMs are the Gaussian fitting errors. The blue straggler stars (BSS) in all three old clusters were found to exhibit centralized radial distribution. The clusters’ radii are determined as 94, 1295, and 66 for Be 32, Be 98, and King 23 using radial density profiles. Ages of the clusters determined by isochrone fitting are 4.90 ± 0.22, 3.23 ± 0.15, and 1.95 ± 0.22 Gyr. The errors given in the clusters’ ages are the internal errors. The mass function slopes are found to be flatter than Salpeter’s value for all three clusters. All three clusters are found to be dynamically relaxed. Galactic orbits are derived for these clusters, which demonstrate that the studied clusters follow a circular path around the Galactic center.
An Intermediate-age Alpha-rich Galactic Population in K2
Authors: Warfield Jack T. , Zinn Joel C. , Pinsonneault Marc H. , Johnson Jennifer A. , Stello Dennis , Elsworth Yvonne , García Rafael A. , Kallinger Thomas , Mathur Savita , Mosser Benoît , Beaton Rachael L. , García-Hernández D. A. 
Published: February 2021

Abstract
We explore the relationships between the chemistry, ages, and locations of stars in the Galaxy using asteroseismic data from the K2 mission and spectroscopic data from the Apache Point Galactic Evolution Experiment survey. Previous studies have used giant stars in the Kepler field to map the relationship between the chemical composition and the ages of stars at the solar circle. Consistent with prior work, we find that stars with high [α/Fe] have distinct, older ages in comparison to stars with low [α/Fe]. We provide age estimates for red giant branch (RGB) stars in the Kepler field, which support and build upon previous age estimates by taking into account the effect of α-enrichment on opacity. Including this effect for [α/Fe]-rich stars results in up to 10% older ages for low-mass stars relative to corrected solar mixture calculations. This is a significant effect that Galactic archeology studies should take into account. Looking beyond the Kepler field, we estimate ages for 735 RGB stars from the K2 mission, mapping age trends as a function of the line of sight. We find that the age distributions for low- and high-[α/Fe] stars converge with increasing distance from the Galactic plane, in agreement with suggestions from earlier work. We find that K2 stars with high [α/Fe] appear to be younger than their counterparts in the Kepler field, overlapping more significantly with a similarly aged low-[α/Fe] population. This observation may suggest that star formation or radial migration proceeds unevenly in the Galaxy.
BAT AGN Spectroscopic Survey. XX. Molecular Gas in Nearby Hard-X-Ray-selected AGN Galaxies
Authors: Koss Michael J. , Strittmatter Benjamin , Lamperti Isabella , Shimizu Taro , Trakhtenbrot Benny , Saintonge Amelie , Treister Ezequiel , Cicone Claudia , Mushotzky Richard , Oh Kyuseok , Ricci Claudio , Stern Daniel , Ananna Tonima Tasnim , Bauer Franz E. , Privon George C. , Bär Rudolf E. , Breuck Carlos De , Harrison Fiona , Ichikawa Kohei , Powell Meredith C. , Rosario David , Sanders David B. , Schawinski Kevin , Shao Li , Megan Urry C. , Veilleux Sylvain 
Published: February 2021

Abstract
We present the host-galaxy molecular gas properties of a sample of 213 nearby (0.01 < z < 0.05) hard-X-ray-selected active galactic nucleus (AGN) galaxies, drawn from the 70-month catalog of Swift’s Burst Alert Telescope (BAT), with 200 new CO(2–1) line measurements obtained with the James Clerk Maxwell Telescope and the Atacama Pathfinder Experiment telescope. We find that AGN in massive galaxies (

) tend to have more molecular gas and higher gas fractions than inactive galaxies matched in stellar mass. When matched in star formation, we find AGN galaxies show no difference from inactive galaxies, with no evidence that AGN feedback affects the molecular gas. The higher molecular gas content is related to AGN galaxies hosting a population of gas-rich early types with an order of magnitude more molecular gas and a smaller fraction of quenched, passive galaxies (∼5% versus 49%) compared to inactive galaxies. The likelihood of a given galaxy hosting an AGN (L
bol > 1044 erg s−1 ) increases by ∼10–100 between a molecular gas mass of 108.7
M
⊙ and 1010.2
M
⊙. AGN galaxies with a higher Eddington ratio (log(L/L
Edd) > −1.3) tend to have higher molecular gas masses and gas fractions. The log(N
H/ cm−2 ) > 23.4) of AGN galaxies with higher column densities are associated with lower depletion timescales and may prefer hosts with more gas centrally concentrated in the bulge that may be more prone to quenching than galaxy-wide molecular gas. The significant average link of host-galaxy molecular gas supply to supermassive black hole (SMBH) growth may naturally lead to the general correlations found between SMBHs and their host galaxies, such as the correlations between SMBH mass and bulge properties, and the redshift evolution of star formation and SMBH growth.
GenetIC—A New Initial Conditions Generator to Support Genetically Modified Zoom Simulations
Authors: Stopyra Stephen , Pontzen Andrew , Peiris Hiranya , Roth Nina , Rey Martin P. 
Published: February 2021

Abstract
We present genetIC, a new code for generating initial conditions for cosmological N-body simulations. The code allows precise, user-specified alterations to be made to arbitrary regions of the simulation (while maintaining consistency with the statistical ensemble). These “genetic modifications” allow, for example, the history, mass, or environment of a target halo to be altered in order to study the effect on their evolution. The code natively supports initial conditions with nested zoom regions at progressively increasing resolution. Modifications in the high-resolution region must propagate self-consistently onto the lower-resolution grids; to enable this while maintaining a small memory footprint, we introduce a Fourier-space filtering approach to generating fields at variable resolution. Due to a close correspondence with modifications, constrained initial conditions can also be produced by genetIC (for example, with the aim of matching structures in the local universe). We test the accuracy of modifications performed within zoom initial conditions. The code achieves subpercent precision, which is easily sufficient for current applications in galaxy formation.
Extended X-Ray Emission around FR II Radio Galaxies: Hot Spots, Lobes, and Galaxy Clusters
Authors: Jimenez-Gallardo A. , Massaro F. , Paggi A. , D’Abrusco R. , Prieto M. A. , Peña-Herazo H. A. , Berta V. , Ricci F. , Stuardi C. , Wilkes B. J. , O’Dea C. P. , Baum S. A. , Kraft R. P. , Forman W. R. , Jones C. , Mingo B. , Liuzzo E. , Balmaverde B. , Capetti A. , Missaglia V. , Hardcastle M. J. , Baldi R. D. , Morabito L. K. 
Published: February 2021

Abstract
We present a systematic analysis of the extended X-ray emission discovered around 35 FR II radio galaxies from the revised Third Cambridge Catalog (3CR) Chandra Snapshot Survey with redshifts between 0.05 and 0.9. We aimed to (i) test for the presence of extended X-ray emission around FR II radio galaxies, (ii) investigate whether the extended emission origin is due to inverse Compton (IC) scattering of seed photons arising from the cosmic microwave background (CMB) or thermal emission from an intracluster medium (ICM), and (iii) test the impact of this extended emission on hot-spot detection. We investigated the nature of the extended X-ray emission by studying its morphology and compared our results with low-frequency radio observations (i.e., ∼150 MHz) in the TGSS and LOFAR archives, as well as with optical images from Pan-STARRS. In addition, we optimized a search for X-ray counterparts of hot spots in 3CR FR II radio galaxies. We found statistically significant extended emission (>3σ confidence level) along the radio axis of ∼90% and in the perpendicular direction of ∼60% of the galaxies in our sample. We confirmed the detection of seven hot spots in the 0.5–3 keV energy range. In the cases where the emission in the direction perpendicular to the radio axis is comparable to that along the radio axis, we suggest that the underlying radiative process is thermal emission from the ICM. Otherwise, the dominant radiative process is likely nonthermal IC/CMB emission from lobes. We found that nonthermal IC/CMB is the dominant process in ∼70% of the sources in our sample, while thermal emission from the ICM dominates in ∼15% of them.
An Extension of the Athena++ Framework for Fully Conservative Self-gravitating Hydrodynamics
Authors: Mullen P. D. , Hanawa Tomoyuki , Gammie C. F. 
Published: February 2021

Abstract
Numerical simulations of self-gravitating flows evolve a momentum equation and an energy equation that account for accelerations and gravitational energy releases due to a time-dependent gravitational potential. In this work, we implement a fully conservative numerical algorithm for self-gravitating flows, using source terms, in the astrophysical magnetohydrodynamics framework Athena++. We demonstrate that properly evaluated source terms are conservative when they are equivalent to the divergence of a corresponding “gravity flux” (i.e., a gravitational stress tensor or a gravitational energy flux). We provide test problems that demonstrate several advantages of the source-term-based algorithm, including second-order convergence and round-off error total momentum and total energy conservation. The fully conservative scheme suppresses anomalous accelerations that arise when applying a common numerical discretization of the gravitational stress tensor that does not guarantee curl-free gravity.
Search for Black Hole Merger Families
Authors: Veske Doğa , Sullivan Andrew G. , Márka Zsuzsa , Bartos Imre , Corley K. Rainer , Samsing Johan , Buscicchio Riccardo , Márka Szabolcs 
Published: February 2021

Abstract
The origin, environment, and evolution of stellar-mass black hole (BH) binaries are still a mystery. One of the proposed binary formation mechanisms is manifest in dynamical interactions between multiple BHs. A resulting framework of these dynamical interactions is the so-called hierarchical triple-merger scenario, which happens when three BHs become gravitationally bound, causing two successive BH mergers to occur. In such successive mergers, the BHs involved are directly related to each other, and hence this channel can be directly tested from the properties of the detected binary BH mergers. Here we present a search for hierarchical triple mergers among events within the first and second gravitational-wave transient catalogs of the Laser Interferometer Gravitational-Wave Observatory/Virgo, the eccentric localization of GW190521, and those found by the IAS-Princeton group. The search includes improved statistical quantification that also accounts for BH spins. We perform our analysis for different upper bounds on the mass distribution of first-generation BHs. Our results demonstrate the importance of the mass distributions’ properties for constraining the hierarchical merger scenario. We present the individually significant merger pairs. The search yields interesting candidate families and hints of its future impact.
Fatores associados às internações de longa permanência em instituição hospitalar de alta complexidade/Factors associated with long-term hospitalizations in a high complexity hospital institution
Authors: Silveria Hernandes Conceição Eliane , Rafaeli Candido Pedro Danielli , Maria Birolim Marcela , De Souza Cavalcante Pissinati Paloma , Aparecida Pimenta Ferrari Rosangela , Fernandez Lourenço Haddad Maria do Carmo , Oliveira Vannuchi Marli Terezinha 
Published: February 2021

Objetivo: analisar os fatores associados às internações hospitalares de longa permanência de pacientes atendidos pelo Sistema Único de Saúde em instituição de alta complexidade. Método: estudo transversal quantitativo a partir de dados secundários de internações hospitalares de 2013 a 2015. Calculou-se a razão de prevalência por Regressão de Poisson bruta e ajustada. Resultados: das 12.689 internações nos anos de estudo, 645 foram de longa permanência (>30 dias), com uma prevalência de 5,1%. Predominaram entre o sexo masculino (62%), > 60 anos de idade (52,6%). As causas mais frequentes da hospitalização foram doenças do aparelho circulatório (33,5%) e causas externas (22,3%). O óbito ocorreu para 45,6%. Na análise bivariada, estiveram estatisticamente associadas às internações de longa permanência as variáveis: sexo, idade (60 anos e mais) o baixo ou a não escolaridade dos indivíduos, ser da 17ª regional de saúde, ter sido internado na especialidade neurocirurgia e ter necessitado de internação em UTI. No entanto, permaneceram no modelo final sexo masculino, residir na regional de saúde do município em análise e ter necessitado de internação em Unidade de Terapia Intensiva. (p<0,001). Conclusão: Estratégias de promoção da saúde voltadas à saúde do homem devem ser desenvolvidas pelo município, especialmente considerando que os mesmos são os que mais perdem a vida pela ausência de cuidados com a saúde e em decorrência dos agravos resultantes de causas externas.
A Qualitative Analysis of Concussion-Reporting Behavior in Collegiate Student-Athletes With a History of Sport-Related Concussion
Authors: Weber Rawlins Michelle L. , Welch Bacon Cailee E. , Tomporowski Phillip , Gay Jennifer L. , Bierema Laura , Schmidt Julianne D. 
Published: February 2021

Context
Many survey-based methods have been used to explore concussion-reporting behavior. However, because the decision to report or conceal a concussion is likely multifactorial, this may narrow the findings, as the surveys were largely designed by the researchers.

Objective
To explore student-athletes' perspectives regarding factors that may influence the reporting of sport-related concussion.

Design
Qualitative study.

Setting
National Collegiate Athletic Association Division I athletics.

Patients or Other Participants
We conducted 17 semistructured interviews with student-athletes who had sustained 1 or more concussions while attending a large university (men = 4, women = 13, age = 20.9 ± 1.3 years).

Data Collection and Analysis
After data saturation and member checks, a 5-cycle analytic process was completed: topical review, literature review, data collection and summarizing using a codebook developed by a 3-person research team, linking of findings to current research, and final interpretations.

Results
We discovered 3 themes. Participants discussed concussion perceptions by describing their understanding of a concussion, their own injury experiences, and their perceptions of symptom severity and duration. Regarding reporting behavior, participants described an order of individuals with whom they would speak, symptoms present in order to report (eg, feeling different from normal), immediate reactions, and influential factors for mitigating short- and long-term consequences. Lastly, participants discussed the value of support systems, such as how coaches can both positively and negatively influence reporting and athletic trainer involvement.

Conclusions
Participants often drew from their own concussion experiences in naming common concussion signs and symptoms. Additionally, they indicated that both short- and long-term health consequences influenced and deterred their seeking care and that their support systems, including coaches and athletic trainers, played a role in their concussion experience. Research is needed to determine if using student-athletes' own words to describe a concussion and incorporating student-athletes' support systems, especially coaches and athletic trainers, is effective in increasing concussion reporting.
Edwardsiellosis in freshwater angelfish (Pterophyllum scalare)
Authors: Turgay Emre 
Published: February 2021

The freshwater angelfish (Pterophyllum scalare) with its many varieties is one of the most popular species in the ornamental market. The moribund freshwater angelfish individuals (20-25 g in weight) were sampled from an ornamental fish production facility to determine the cause of mortalities started immediately in fish without any other visible finding except the loss of appetite. The mortality rate in the population was as high as 50% within a week. Bacteriological samples were taken from internal organs for the identification of the causative agent. Hemorrhage in the eyes, loss of scales and skin depigmentation were the most obvious external finding in the moribund fish. Internally; the liver was pale, the spleen was enlarged and the intestinal walls were thinned. According to conventional biochemical and physiological tests and 16S rRNA gene sequencing, all isolated bacteria were identified as Edwardsiella tarda. The antimicrobial susceptibility test performed using the disk diffusion test showed that the E. tarda strains we obtained were sensitive to enrofloxacin, sulfamethoxazole with trimethoprim, furazolidone and flumequine but resistant to ampicillin and tetracycline antibiotics.
Innovative ways of student engagement for active learning in science courses of nursing in the four year baccalaureate program
Authors: Shehla Khan  , Shagufta Iqbal  
Published: February 2021

Active learning strategies with innovative ways are now being used in the teaching and learning for the engagement of students in the classroom settings. A number of studies talks about the benefits the students have shown through their skills while using the active learning methods in their science courses that is Biochemistry, Anatomy and Physiology, Microbiology and Pathophysiology. It has been observed that active learning helps to retain material, motivate students and most of the time develops thinking skills.In the science courses of nurse education these are very much in use for developing the critical thinking qualities in their student nurses. Simply the nurse educator’s apply the process of active learning by engaging the students with the content. By applying active learning strategies in science courses of nursing education one could clearly see how the students get engaged with the content.
Continuous....
paradigma da luz cansada revisitado
Authors: Soares Domingos 
Published: February 2021

Discuto alguns aspectos do chamado “paradigma da luz cansada”, o qual representa uma das possíveis explicações para a dependência do desvio espectral para o vermelho de uma fonte cósmica distante com a sua distância até o observador. A mais popular representação fenomenológica do paradigma é apresentada em algum detalhe. Além disso, sendo o processo físico responsável pelo hipotético fenômeno ainda desconhecido, apresento também uma sugestão para a sua descoberta.