bluuebunny/crossref_metadata_2025_split huggingface dataset:
Delayed Closure of Open Abdomen in Septic Patients Treated With Negative Pressure Vacuum Therapy and Dynamic Sutures: A 10-Years Follow-Up on Long-Term Complications
Authors: Hofmann Anna Theresa , May Christopher , Glaser Karl , Fortelny René H. 
Published: January 2021

Introduction: Patients with open abdomen after surgical interventions associated with the complication of secondary peritonitis are successfully treated with negative pressure wound therapy. The use of dynamic fascial sutures reduces fascial lateralization and increases successful delayed fascial closure after open abdomen treatment.Methods: In 2017 we published the follow-up results of 38 survivors out of 87 open abdomen patients treated with negative pressure wound therapy and dynamic fascial sutures between 2007 and 2012. In our current study we present the 10-years follow-up results regarding long-term complications with the focus on incisional hernias and pain. Since 2017 seven more patients have died, hence 31 patients were included in the current study. The patients were asked to answer questions about specific long-term complications of OA treatment including pain, the presence of incisional hernias and subsequent surgical interventions. Demographic data and data regarding fascial closure after open abdomen treatment were collected. All results were analyzed quantitatively. The follow-up period was 8–13 years.Results: The median age was 69 (30–90) years, and 15 (48.4%) were females. Twenty-four patients (77.4%) responded to the questionnaire: Three patients (12.5%) suffered from pain in the original operating field, all three at rest but not during exercise. None of the patients required analgesic treatment. Eleven patients (45.8%) were found to have incisional hernias. Five out of 11 hernias (45.5%) were treated by surgery and did not declare any pain in the operating field. Among the patients with incisional hernias lower MPI (Mannheimer Peritonitis Index) at the time of primary surgery but more reoperations and treatment days were found. The technique of fascial closure was heterogenic and no differences in the occurrence of incisional hernia could be detected.Conclusion: The incidence of incisional hernias after open abdomen treatment is still high, but are associated with little pain in the original operating field. Further studies are required to investigate methods for fascial closure techniques after OA treatment.
Review of the Modelling Methods of Series Wound DC Motors
Authors: Szántó Attila , Szántó András , Sziki Gusztáv Áron 
Published: January 2021

Abstract
Thanks to technological development and ever-increasing environmental regulations, electric and hybrid vehicles are playing an increasingly important role in road transport. An important part of these vehicles is the electric motor, several different types of which are utilized in modern vehicles. One of these types is the series wound DC motor. In this publication, we review the different modelling methods of the above motor type. On the basis of the models we can perform the simulation in MATLAB/Simulink environment. We also present the technical parameters and characteristics that are needed to run the simulation, and the measurement procedure for determining them. Finally, we present the measurement system we have developed for the measurement and testing the motors.
Patiromer and Spironolactone in Resistant Hypertension and Advanced CKD: Analysis of the Randomized AMBER Trial
Authors: Agarwal Rajiv , Rossignol Patrick , Budden Jeffrey , Mayo Martha R. , Arthur Susan , Williams Bryan , White William B. 
Published: January 2021

Background
Mineralocorticoid receptor antagonists reduce mortality in patients with heart failure with reduced ejection fraction and have become a standard of care in those with resistant hypertension (rHTN). Yet, their use is limited among patients with CKD, primarily due to hyperkalemia.

Methods
AMBER was a multicenter, randomized, double-blind, placebo-controlled, parallel-group study that reported that the use of the potassium-binding drug patiromer allowed a more persistent use of spironolactone in patients with CKD and rHTN. In this report, we compare the safety and efficacy of patiromer in advanced CKD as a prespecified analysis.

Results
Of the 295 patients randomized, 66 fell into the eGFR 25 to <30 subgroup. In this subgroup, persistent use of spironolactone was seen in 19 of 34 (56%) in the placebo group and 27 of 32 (84%) in the patiromer group (absolute difference 29%; P<0.02). In the eGFR 30–45 subgroup, persistent use of spironolactone was seen in 79 of 114 (69%) in the placebo group and 99 of 115 (86%) in the patiromer group (absolute difference 17%; P=0.003). There was no significant interaction between eGFR subgroups (P=0.46). Systolic BP reduction with spironolactone in the eGFR 25 to <30 subgroup was 6–7 mm Hg; in the eGFR 30–45 subgroup, it was 12–13 mm Hg. There was no significant interaction between eGFR subgroups on BP reduction (P=0.79). Similar proportions of patients reported adverse events (59% in the eGFR 25 to <30 subgroup; 53% in the eGFR 30–45 subgroup).

Conclusions
Patiromer facilitates the use of spironolactone among patients with rHTN, and its efficacy and safety are comparable in those with eGFR 25 to <30 and 30–45 ml/min per 1.73 m2.

Clinical Trial registry name and registration number:
Clinicaltrials.gov, NCT03071263
Relational Learning With Indigenous Communities: Elders’ and Students’ Perspectives on Reconciling Indigenous Service-Learning
Authors: Kennedy Andrea , McGowan Katharine , Lindstrom Gabrielle , Cook Christian , Dean Yasmin , Stauch James , Barnabe Cheryl , Price Stephen 
Published: January 2021

This study counterbalances Western-derived evidence by describing Elders’ and students’ perspectives of Indigenous service-learning through Indigenous research methodology. Data collection took place in a midsize Canadian university after an Indigenous service-learning public networking forum. The purposive sample consisted of three Indigenous elders and five Indigenous students. Immediately following the event, Elders participated in a focus group, and then students completed a survey. Qualitative themes were interpreted using conversational method and relational analysis. Elders called for the replacement of the term service-learning, re-rooting of the term Indigenous, and respect for the Elders’ roles and knowledges. Interconnected themes by Elders and students signaled a necessary shift from service-learning to relational learning. Such connections reveal the core purpose of relational learning with Indigenous communities as maintaining good relations through humility, respect, honesty, and reciprocity while responding to the interconnected priorities of the land, traditional ways, Elders, and common language. Findings signal decolonizing opportunities for relational learning with Indigenous communities. Este estudio contrarresta la evidencia derivada de occidente al describir las perspectivas de Maestros ancianos (llamados “Elders” entre los pueblos indígenas norteamericanos) y aprendices sobre el aprendizaje-servicio indígena a través de la metodología de investigación indígena. La recolección de datos se llevó a cabo en una universidad canadiense de tamaño mediano tras la celebración de un foro de networking público de aprendizaje-servicio para indígenas. La muestra útil consistió en tres Maestros y cinco aprendices indígenas. Inmediatamente después del evento, los Maestros participaron en un focus group de una hora y los estudiantes completaron una encuesta. Los temas cualitativos se interpretaron utilizando el método conversacional y el análisis relacional. Los Maestros pidieron la sustitución del término aprendizaje-servicio, la recuperación del término indígena y el respeto hacia los conocimientos y el rol de los Maestros. Las conexiones entre los temas discutidos por Maestros y estudiantes demostraron la necesidad de un cambio del aprendizaje-servicio al aprendizaje relacional. Dichas conexiones revelan el propósito central del aprendizaje relacional con las comunidades indígenas, como mantener buenas relaciones a través de la humildad, el respeto, la honestidad y la reciprocidad mientras se responde a las prioridades interconectadas de la tierra, las formas tradicionales, los Maestros y el lenguaje común. Los hallazgos señalan oportunidades de descolonización para el aprendizaje relacional con comunidades indígenas.
Seeing Community Engagement as We Are: Student Perceptions of Service-Learning and Social Entrepreneurship Education
Authors: Clifford Joan , Emmerling Dane , Widney Evan , Hamilton Nina , Malone David 
Published: January 2021

The purpose of the research was to more deeply understand undergraduate students’ perceptions of service-learning (SL) and social entrepreneurship education (SE) by examining ways in which the gender of students and their prior experiences in community engagement might shape those perceptions. We designed, administered, and analyzed the results of a survey completed by 382 undergraduate students. Results indicated that, regardless of whether the students had experiences in SL or SE, they shared similar views of the values and practices associated with each approach. However, the disaggregated data by gender showed that self-identified female students more strongly endorsed certain aspects of the community-engaged approaches in comparison with self-identified male students. These findings further emerging critiques of community engagement learning experiences that have explored how positionality impacts students’ understanding of, and approach to community engagement. El propósito de la investigación era entender mejor la percepción de los estudiantes de pregrado acerca del aprendizaje en servicio (SL) y de la educación del empresariado social (SE), indagando en cómo el género de los estudiantes y sus experiencias previas en participación comunitaria podrían haber configurado esa percepción. Hemos diseñado, administrado y analizado los resultados de una encuesta a 382 estudiantes de pregrado. Los resultados indicaron que, independientemente de que los estudiantes tuvieran experiencias en SL o SE o no, compartían puntos de vista similares acerca de los valores y prácticas asociadas con cada enfoque. Sin embargo, los datos correspondientes a género mostraron que las estudiantes que se identificaron a sí mismas como mujeres apoyaban mucho más ciertos aspectos de la participación comunitaria que los estudiantes varones que se identificaron a sí mismos como hombres. Estos hallazgos conllevan a nuevas críticas a este tipo de experiencias, centradas en analizar la manera en que el posicionamiento de los estudiantes impacta su comprensión y perspectiva acerca de la participación comunitaria.
Test-Retest Reliability and Validity of the Service-Learning Outcomes Measurement Scale
Authors: Lau Ka Hing , Snell Robin S. 
Published: January 2021

The current study evaluated the test-retest reliability and validity of the 56-item Service-Learning Outcomes Measurement Scale (S-LOMS) by inviting 122 university students to respond to items on the scale twice within a two-week period. Results indicated test-retest reliability that was moderate for eight out of 11 domains and good for the three other domains. There were intraclass correlation coefficients (ICCs) of 0.6 or above at the domain, category, and overall levels of the scale. Notably, respondents with prior service-learning experience tended to score higher on developmental outcome domains than those without prior service-learning experience. Comparisons between S-LOMS scores according to gender, age, year of study, and academic background were also made and discussed. The results indicated that S-LOMS is stable over time and that it has robust validity vis-à-vis undergraduate students in Hong Kong as the target population. En el presente estudio se evaluó la buena fiabilidad (procedimiento test-retest) y la validez de los 56 artículos incluídos en la Escala de Medición de Resultados del Aprendizaje en Servicio (S-LOMS según sus siglas en inglés). 122 estudiantes universitarios tomaron la encuesta en dos oportunidades en un período de dos semanas. Los resultados indicaron que la fiabilidad del test-retest era moderada en ocho de las 11 áreas y buena en las otras tres. Los coeficientes de correlación intraclase (ICC) obtenidos fueron de 0,6 o más en el dominio, categoría y niveles generales de la escala. Cabe destacar que los encuestados con experiencia previa de aprendizaje en servicio tendieron a obtener una puntuación más alta en el área de resultados de desarrollo que los que no tenían ninguna. También se establecieron y discutieron comparaciones entre las puntuaciones del S-LOMS según género, edad, año de estudio y antecedentes académicos. Los resultados indicaron que el S-LOMS es estable a lo largo del tiempo y que tiene una sólida validez con respecto a los estudiantes universitarios de pregrado en Hong Kong, población seleccionada.
AKSES INTERNET DAN PRESTASI HAFALAN ALQURAN
Authors: Dhahir Darman Fauzan 
Published: January 2021

The activity of memorizing Quran has been a custom of Muslims since the time of Prophet Muhammad May Peace be upon Him. When the internet developed and became an inseparable part of human life, it was feared to harm the achievement of Quran memorizing. To prove the truth of that concern, this quantitative research was conducted. The research is aimed at measuring the relationship between the duration and variety of internet access with the achievements of hafidz Quran (memorizers). The data are obtained by survey, interviews, and documentation, then analyzed statistically, presented and interpreted descriptively. The results show that internet access’ duration, and its utilization, such as processes, contents, and social forms have significant and positive relationships towards the achievement of the hafidz. On the other hand, the internet use intended for fun or as an escape to release stress does not have a significant relationship with the performance of the hafidz. Keywords: internet access; internet usage; Quran memorization
HAT-P-68b: A Transiting Hot Jupiter around a K5 Dwarf Star*
Authors: Lindor Bethlee M. , Hartman Joel D. , Bakos Gáspár Á. , Bhatti Waqas , Csubry Zoltan , Penev Kaloyan , Bieryla Allyson , Latham David W. , Torres Guillermo , Buchhave Lars A. , Val-Borro Miguel de , Howard Andrew W. , Isaacson Howard , Fulton Benjamin J. , Boisse Isabelle , Santerne Alexandre , Hébrard Guillaume , Kovács Támás , Huang Chelsea X. , Dembicky Jack , Falco Emilio , Everett Mark E. , Horch Elliott P. , Lázár József , Papp István , Sári Pál 
Published: January 2021

Abstract
We report the discovery by the ground-based Hungarian-made Automated Telescope Network (HATNet) survey of the transiting exoplanet HAT-P-68b, which has a mass of 0.724 ± 0.043 M
J, and radius of 1.072 ± 0.012 R
J. The planet is in a circular P = 2.2984 day orbit around a moderately bright V = 13.937 ± 0.030 magnitude K-dwarf star of mass

M
⊙, and radius 0.6726 ± 0.0069 R
⊙. The planetary nature of this system is confirmed through follow-up transit photometry obtained with the Fred L. Whipple Observatory (FLWO) 1.2 m telescope, high-precision radial velocities measured using Keck I/High Resolution Echelle Spectrometer (HIRES), FLWO 1.5 m/Tillinghast Reflector Echelle Spectrograph (TRES), and Observatoire de Haute-Provence (OHP) 1.9 m/Sophie, and high-spatial-resolution speckle imaging from WIYN 3.5 m/DSSI. HAT-P-68 is at an ecliptic latitude of +3° and outside the field of view of both the NASA Transiting Exoplanet Survey Satellite primary mission and the K2 mission. The large transit depth of 0.036 mag (r band) makes HAT-P-68b a promising target for atmospheric characterization via transmission spectroscopy.
Refined Telluric Absorption Correction for Low-resolution Ground-based Spectroscopy: Resolution and Radial Velocity Effects in the O2 A-band for Exoplanets and K i Emission Lines
Authors: Kimeswenger Stefan , Rainer Manuel , Przybilla Norbert , Kausch Wolfgang 
Published: January 2021

Abstract
Telluric correction of spectroscopic observations is either performed via standard stars that are observed close in time and airmass along with the science target, or recently growing in importance, by theoretical telluric absorption modeling. Both approaches work fine when the telluric lines are resolved, i.e., at a spectral resolving power larger than about 10,000, and it is sufficient to facilitate the detection of spectral features at lower resolution. However, a meaningful quantitative analysis also requires the reliable recovery of line strengths. Here, we show for the Fraunhofer A-band of molecular O2 that the standard telluric correction approach fails in this at lower spectral resolutions, as an example for the general problem. Doppler-shift-dependent errors of the restored flux may arise, which can amount to more than 50% in extreme cases, depending on the line shapes of the target spectral features. Two applications are discussed: the recovery of the O2 band in the reflected light of an Earth analog atmosphere, as facilitated potentially in the future using an orbiting starshade and a ground-based extremely large telescope; and the recovery of the intrinsic ratio of the K i lines in the post-nova V4332 Sgr tracing the optical depth of the emitting region, to exemplify the relevance using present-day instrumentation. We show how one should derive correction functions for the compensation of the error in dependence of radial velocity shift, spectral resolution, and target line-profile function by use of high-resolution atmospheric transmission modeling, which has to be solved for the individual case.
Combining Transit and Radial Velocity: A Synthesized Population Model
Authors: Kunimoto Michelle , Bryson Steve 
Published: January 2021

Abstract
We present a framework for estimating exoplanet occurrence rates by synthesizing constraints from radial velocity and transit surveys simultaneously. We employ approximate Bayesian computation and various mass–radius (M–R) relations to explore the population models describing these surveys, both separately and in a joint fit. Using this approach, we fit a planet distribution function of the form

, with a break in the power law in mass at M

b
, to planets orbiting FGK stars with periods

days and masses

. We find that the M–R relation from Otegi et al. (2020), which lets rocky and volatile-rich populations overlap in mass, allows us to find a model that is consistent with both types of surveys. Our joint fit gives

(errors reflect 68.3% credible interval). This is nearly a factor of three higher than the break from transit-only considerations and an M–R relation without such an overlap. The corresponding planet–star mass ratio break

may be consistent with microlensing studies (

). The joint fit also requires that a fraction of

planets in the overlap region belong to the rocky population. Our results strongly suggest that future M–R relations should account for a mixture of distinct types of planets in order to describe the observed planet population.
Magnetoacoustic Waves in a Magnetic Slab Embedded in an Asymmetric Magnetic Environment. III. Applications to the Solar Atmosphere
Authors: Zsámberger Noémi Kinga , Erdélyi Róbert 
Published: January 2021

Abstract
Analytical and numerical modeling of the behavior of magnetohydrodynamic waves in various magnetic geometries can offer a valuable contribution to the field of solar magnetoseismology. Based on analytical results from our previous studies, here we illustrate a few solar applications of these findings concerning the propagation of magnetoacoustic waves in a magnetic slab embedded in an asymmetric environment. Bearing in mind the simplifying assumptions made, this asymmetric model incorporating external magnetic fields can be used to describe a wide variety of multilayered solar features, some of which are observable and have already been studied in solar structures. Specific potential applications are: prominences, polar plumes and their environment, magnetic bright points, and light bridges, as well as adjacent large-scale layers in the solar atmosphere (e.g., the photosphere—interface region—corona triad, or the chromosphere—transition region—corona group). In these individual cases, the appropriate dispersion relations are derived and solved. The obtained wave propagation solutions may serve (i) not just as impetus to be confirmed by high-resolution observations but (ii) also to be exploited for further diagnostic purposes by solar magnetoseismology of these frequently studied magnetic structures.
From the Fermi Blazar Sequence to the Relation between Fermi Blazars and γ-Ray Narrow-line Seyfert 1 Galaxies
Authors: Chen Yongyun , Gu Qiusheng , Fan Junhui , Wang Hongtao , Qin Shaojie , Ding Nan , Yu Xiaoling , Guo Xiaotong , Xiong Dingrong 
Published: January 2021

Abstract
We use the third catalog of blazars detected by Fermi/LAT (3LAC) and γ-ray narrow-line Seyfert 1 Galaxies (γ-NLSy1s) to study the blazar sequence and relationship between them. Our results are as follows. (i) There is a weak anticorrelation between synchrotron peak frequency and peak luminosity for both Fermi blazars and γ-NLSy1s, which supports the blazar sequence. However, after Doppler correction, the inverse correlation disappeared, which suggests that anticorrelation between synchrotron peak frequency and peak luminosity is affected by the beaming effect. (ii) There is a significant anticorrelation between jet kinetic power and synchrotron peak frequency for both Fermi blazars and γ-NLSy1s, which suggests that the γ-NLSy1s could fit well into the original blazar sequence. (iii) According to previous work, the relationship between synchrotron peak frequency and synchrotron curvature can be explained by statistical or stochastic acceleration mechanisms. There are significant correlations between synchrotron peak frequency and synchrotron curvature for whole sample, Fermi blazars and BL Lac objects, respectively. The slopes of the correlation are consistent with statistical acceleration. For FSRQs, LBLs, IBLs, HBLs, and γ-NLS1s, we also find a significant correlation, but in these cases the slopes cannot be explained by previous theoretical models. (iv) The slope of the relation between synchrotron peak frequency and synchrotron curvature in γ-NLS1s is larger than that of FSRQs and BL Lac objects. This result may imply that the cooling dominates over the acceleration process for FSRQs and BL Lac objects, while γ-NLS1s is the opposite.
Multiwavelength Characterization of the High-mass X-Ray Binary Population of M31
Authors: Lazzarini Margaret , Williams Benjamin F. , Durbin Meredith , Dalcanton Julianne , Antoniou Vallia , Binder Breanna A. , Eracleous Michael , Plucinsky Paul P. , Sasaki Manami , Vulic Neven 
Published: January 2021

Abstract
We present our analysis of high-quality high-mass X-ray binary (HMXB) candidates in M31 selected from point-source optical counterpart candidates from the Chandra-PHAT survey catalog. We fit the spectral energy distributions of optical counterpart candidates using the Bayesian Extinction and Stellar Tool. We used the best-fit luminosity, effective temperature, radius, and dust reddening for the companion stars in combination with the local star formation history, dust maps of M31, published X-ray spectral fits from XMM-Newton observations, IR colors, and Chandra X-ray hardness ratios to determine our best sample of HMXB candidates. The age distribution of the HMXB sample appears peaked between 10 and 50 Myr, consistent with findings in other nearby galaxies. Using the age distribution and mean star formation rate (SFR), we find that 80–136 HMXBs were produced per unit of SFR over the last 50 Myr and 89–163 HMXBs were produced per unit of SFR over the last 80 Myr, if we expand the assumed age limit beyond the lifetimes of single massive stars. We also calculate the HMXB production rate (HMXBs/M
⊙) over time, which ranges from 7 × 10−7 to 4 × 10−6 HMXBs/M
⊙ over the last 80 Myr, in agreement with both theoretical predictions and measured production rates in other galaxies.