bluuebunny/crossref_metadata_2025_split huggingface dataset:
Multi-wavelength spectroscopic analysis of the ULX Holmberg II X-1 and its nebula suggests the presence of a heavy black hole accreting from a B-type donor
Authors: Reyero Serantes S. , Oskinova L. , Hamann W. -R. , Gómez-González V. M. A. , Todt H. , Pauli D. , Soria R. , Gies D. R. , Torrejón J. M. , Bulik T. , Ramachandran V. , Sander A. A. C. , Bozzo E. , Poutanen J. 
Published: September 2024

Context. Ultra-luminous X-ray sources (ULXs) are high-mass X-ray binaries with an X-ray luminosity above 1039 erg s−1. These ULXs can be powered by black holes that are more massive than 20 M⊙, accreting in a standard regime, or lighter compact objects accreting supercritically. There are only a few ULXs with known optical or ultraviolet (UV) counterparts, and their nature is debated. Determining whether optical/UV radiation is produced by the donor star or by the accretion disc is crucial for understanding ULX physics and testing massive binary evolution.
Aims. We conduct, for the first time, a fully consistent multi-wavelength spectral analysis of a ULX and its circumstellar nebula. We aim to establish the donor star type and test the presence of strong disc winds in the prototypical ULX Holmberg II X-1 (Ho II X-1). Furthermore, we aim to obtain a realistic spectral energy distribution of the ionising source, which is needed for robust nebula analysis. We acquired new UV spectra of Ho II X-1 with the Hubble Space Telescope (HST) and complemented them with archival optical and X-ray data. We explored the spectral energy distribution of the source and analysed the spectra using the stellar atmosphere code PoWR and the photoionisation code CLOUDY. Our analysis of the X-ray, UV, and optical spectra of Ho II X-1 and its nebula consistently explains the observations. We do not find traces of disc wind signatures in the UV and the optical, rejecting previous claims of the ULX being a supercritical accretor. The optical/UV counterpart of Ho II X-1 is explained by a B-type supergiant donor star. Thus, the observations are fully compatible with Ho II X-1 being a close binary consisting of an ≳66 M⊙ black hole accreting matter from an ≃22 M⊙ B-supergiant companion. Furthermore, we propose a possible evolution scenario for the system, suggesting that Ho II X-1 is a potential gravitational wave source progenitor.
Betreuung von Patienten nach Nierentransplantation
Authors: Schlosser Mandy 
Published: September 2024

ZUSAMMENFASSUNGZur Durchführung einer Nierentransplantation (NTx) ist die Zusammenarbeit im multiprofessionellen Team grundlegend. Bezogen auf Mortalität und Lebensqualität der Patienten kann die NTx als bestes Nierenersatzverfahren angesehen werden. Mit den Fortschritten in der immunsuppressiven Therapie kann mittlerweile ein sehr gutes Transplantatüberleben im ersten Jahr (> 95 %) erreicht werden, das sich bisher jedoch nicht in den Langzeitverlauf übertragen lässt. Vor der Aufnahme auf die Warteliste für eine NTx wird die Transplantationsfähigkeit durch ein multidisziplinäres Evaluationsprogramm festgestellt und in interdisziplinären Transplantationskonferenzen beraten. Die Wartezeit auf eine NTx in Deutschland ist sehr lang und beträgt 8–10 Jahre. Deshalb steigt die Anzahl von Wartelistenabgängen aufgrund von einer Transplantationsunfähigkeit, die häufig von kardiovaskulären Komplikationen durch Adipositas und Gebrechlichkeit („frailty“) herrührt. Dieser Artikel widmet sich den Strukturen sowie dem interdisziplinären Risikomanagement typischer Komplikationen, Komorbiditäten und Risiken nierentransplantierter Patienten. Der Fokus liegt auf internistischen und urologischen Problemfeldern vor dem Hintergrund der Komplexität und Immunsuppression (IS) von nierentransplantierten Patienten.
Akutes Nierenversagen infolge eines hepatorenalen Syndroms
Authors: Ripoll Cristina , Zipprich Alexander , Wolf Gunter , Busch Martin 
Published: September 2024

ZUSAMMENFASSUNGDas akute Nierenversagen (AKI: „acute kidney injury“) infolge eines hepatorenalen Syndroms (AKI-HRS) kommt nur bei Patienten mit Leberzirrhose und Aszites vor. AKI-HRS muss jedoch von anderen Ursachen des AKI abgegrenzt werden, die weitaus häufiger vorkommen. Zu nennen wären Volumenmangel, Infektionen, Gebrauch von tubulotoxischen Substanzen sowie Komorbiditäten einschließlich akuter Verschlechterungen vorbestehender chronischer Nierenerkrankungen anderer Genese, wie z. B. bei Diabetes, arterieller Hypertonie, Herzinsuffizienz und Glomerulonephritiden. Der aktuelle Expertenkonsensus hat die bisherigen Diagnosekriterien gelockert. Dennoch sollte die Diagnose eines AKI-HRS in klarer Abgrenzung zu einer vorbestehenden chronischen Nierenerkrankung oder hinsichtlich anderer Ursachen des AKI erfolgen. Dazu ist ein interdisziplinäres Management der Patienten unabdingbar. Volumenmanagement, Terlipressin und Albumin sind die führenden Säulen in der Therapie des AKI-HRS. Die Indikation zur Lebertransplantation sollte in allen Fällen geprüft werden und daher die schnelle Überweisung an spezialisierte Zentren nach sich ziehen, sofern die Patienten Transplantationskandidaten sein könnten. Die Notwendigkeit und Dauer einer Dialysetherapie müssen individuell geprüft werden.
Cost Comparison of a Traditional Didactic versus National Flipped Classroom Curriculum
Authors: Carbajal Melissa M. , Karpen Heidi , Arias-Shah AnnaMarie , Gisondo Carly , French Heather M. , Gray Megan M. , Izatt Susan , Gillam-Krakauer Maria , Johnston Lindsay C. , Payne Allison , Vasquez Margarita M. , Bonachea Elizabeth M. , Falck Alison J. , Chess Patricia R. , Dadiz Rita 
Published: September 2024

Objective We compared the cost of faculty time preparing educational materials for traditional didactic (TD) education provided at local institutions with that of faculty time preparing National Neonatology Curriculum (NNC) flipped classroom (FC) educational materials shared among institutions for fellow education across the United States.
Study Design Using survey data and the national average for faculty educators' salaries, we calculated the cost of developing TD versus FC materials. Wilcoxon rank-sum test and comparison of two Poisson rates were utilized to evaluate the time to create versus update TD materials and the cost to create new TD versus FC materials, respectively.
Results FC materials required more time to develop than TD materials (FC, median 17 h, interquartile range [IQR]: 17; TD, median, 5 h, IQR: 5; p < 0.001). However, when the size of individual fellowship programs was factored into the cost analysis, FC materials shared nationally among programs resulted in a 19- to 72-fold cost savings when compared to the creation of new locally used TD materials (FC, $2.49 per fellow; TD $32.05–576.90 per fellow at very large-to-small fellowship programs; p < 0.001).
Conclusion Educational materials developed and disseminated to fellowship programs across the country confer significant savings in faculty educator time and cost per learner. Standardized programs such as the NNC may serve as a model to develop shared peer-reviewed educational resources for other specialties.
Key Points
Characteristics of Bleeding Complications in Patients with Severe COVID-19 Requiring Veno-venous Extracorporeal Membrane Oxygenation in Japan
Authors: Taniguchi Hayato , Abe Takeru , Takeuchi Ichiro , Ohshimo Shinichiro , Shime Nobuaki , Kushimoto Shigeki , Hashimoto Satoru , Takeda Shinhiro ,   on behalf of the Japan ECMO Network
Published: September 2024

Background Complications during veno-venous extracorporeal membrane oxygenation (VV-ECMO) are associated with in-hospital mortality. Asian patients on extracorporeal membrane oxygenation (ECMO) have higher risks of bleeding and in-hospital mortality than Caucasian patients. This study aimed to characterize and identify bleeding complications and their associated factors related to in-hospital mortality in patients with severe coronavirus disease 2019 (COVID-19) requiring VV-ECMO in Japan.
Methods In this retrospective observational analysis, the prospective nationwide multicenter registry was used to track real-time information from intensive care units throughout Japan during the COVID-19 pandemic. VV-ECMO patients' registry data between February 1, 2020 and October 31, 2022 were used.
Results This study included 441 patients; 178 (40%) had bleeding complications in the following sites: 20% at the cannulation site, 16% in the gastrointestinal tract, 16% in the ear–nose–throat, 13% at the tracheostomy site, 9% intrathoracic, 6% intracranial, and 5% in the iliopsoas. Anticoagulation was discontinued in >50% of patients with intracranial, iliopsoas, and gastrointestinal tract bleeding. ECMO was discontinued in one-third of patients with intracranial, intramuscular, and iliopsoas hemorrhages. Multivariable logistic regression analysis revealed that only gastrointestinal tract bleeding was associated with in-hospital mortality (odds ratio: 2.49; 95% confidence interval: 1.11–5.60; p = 0.03).
Conclusion Incidence of bleeding complications was 40% in the Japanese population. Gastrointestinal tract bleeding emerged as a significant predictor of adverse outcomes, necessitating further research into preventive strategies and optimized care protocols. These findings can guide the management of VV-ECMO patients with COVID-19.
An Innovative Surgical Technique: Dorsal SMAS Periosteal Flap for Nasal Radix Augmentation
Authors: Springford Laurie R. , Alhasan Mohamad Sami 
Published: September 2024

AbstractThe nasal radix holds significant importance in facial aesthetics, sometimes requiring augmentation to create balanced facial profiles. A flat nasal radix can cause inadequate projection and the appearance of a pseudo-hump. In these cases, rhinoplasty surgeons should avoid working on the pseudo-hump and focus on elevating the radix to achieve the desired aesthetic outcome. Here, we introduce a novel approach and “how we do” the dorsal superficial musculoaponeurotic system (SMAS) periosteal flap for nasal radix augmentation. Using an external septorhinoplasty approach, the initial dissection is performed over the nasal bones in the supra-SMAS plane. Then, an SMAS flap is designed with two lateral and one caudal incision extending to the osseocartilaginous junction and dissected subperiosteally. Next, the flap is rotated to fill the space between the nasal bones and skin, augmenting the nasal radix. Compared to traditional methods, this approach always utilizes the patient's own tissue, minimizes rejection, and ensures seamless integration, providing lasting results. It ensures structural stability and avoids the use of cartilage, eliminating the risk of resorption. The dorsal SMAS periosteal flap presents a tailored, durable solution that consistently yields excellent outcomes while overcoming the risk of instability associated with cartilage grafts.
Are we allowed to win this time: new warrior culture in action and government betrayal in the American Rifleman 1975–2023
Authors: Dawson Jessica 
Published: September 2024

AbstractThe emergence of New Warrior culture in the post-Vietnam era has largely been unexplored by sociology of culture. While recent research on the NRA has explored significant aspects of gun culture such as advertising, narratives, as well as ratings of gun empowerment etc., less work has investigated how the NRA facilitated changes not only in gun culture but in the “systems of social relations” between gun owners and the government but also in “systems of meaning” in how gun owners understand their guns. This paper argues that the NRA’s use of Native American warrior narratives, combined with other New Warrior narratives, maps onto Swidler’s unsettled time. Merging classic warrior narratives based in service to the nation alongside extensive use of Native American warriors, the NRA leveraged warrior narratives as a way of facilitating the transformation of warrior identity from one who defends the nation to one that is prepared to fight their government. In this way, the NRA was able to communicate antigovernment narratives without openly embracing the conspiratorial antigovernment ideals espoused by some factions of the militia movement by changing warrior cultural narratives from defending the nation to fighting against its government.
FAST Observations of Four Comets to Search for the Molecular Line Emissions between 1.0 and 1.5 GHz Frequencies
Authors: Chen Long-Fei , Tsai Chao-Wei , Li Jian-Yang , Yang Bin , Li Di , Duan Yan , Hsia Chih-Hao , Pan Zhichen , Qian Lei , Quan Donghui , Jiang Xue-Jian , Li Xiaohu , Zhao Ruining , Zuo Pei 
Published: September 2024

Abstract
We used the Five-hundred-meter Aperture Spherical radio Telescope (FAST) to search for the molecular emissions in the L-band between 1.0 and 1.5 GHz toward four comets, C/2020 F3 (NEOWISE), C/2020 R4 (ATLAS), C/2021 A1 (Leonard), and 67P/Churyumov-Gerasimenko during or after their perihelion passages. Thousands of molecular transition lines fall in this low-frequency range, many attributed to complex organic or prebiotic molecules. We conducted a blind search for the possible molecular lines in this frequency range in those comets and could not identify clear signals of molecular emissions in the data. Although several molecules have been detected at high frequencies of greater than 100 GHz in comets, our results confirm that it is challenging to detect molecular transitions in the L-band frequency ranges. The non-detection of L-band molecular lines in the cometary environment could rule out the possibility of unusually strong lines, which could be caused by the masers or non-LTE effects. Although the line strengths are predicted to be weak, for FAST, using the ultra-wide bandwidth receiver and improving the radio frequency interference environments would enhance the detectability of those molecular transitions at low frequencies in the future.
Thinking Community Music
Authors: Higgins Lee 
Published: September 2024

Abstract
Thinking Community Music explores critical questions concerning community music practice and theory. Themes include intervention, hospitality, pedagogy, social justice, inclusion, cultural democracy, music, research, and future possibilities. Written for community musicians, music educators, applied ethnomusicologists, music therapists, music creators, and cultural policymakers, the book seeks to encourage questioning, reflection, and dialogue. Shaped as provocations and presented as eight stand-alone essays, each ‘think piece’ comprises of critical questions, concrete illustrations of practice, theoretical explorations, and reflective discussion. Flanked by a historical map and a closing statement, the book provides a springboard for conceptual interrogation about participatory music-making. Supported by the lineage of poststructural philosophy, ideas emulating from Derrida and Deleuze provide a springboard for conceptual interrogation about community music practices and the broader parameters of social-cultural music-making and music teaching and learning. As a vital part of the music ecology, community music is a distinctive field and a critical lens to view other musical practices and the various political and cultural policies that frame them.
Arrival
Authors: Higgins Lee 
Published: September 2024

Abstract
The opening chapter provides the rationale and context for the book Thinking Community Music and charts how and why the text has been written. After grounding the work in an anthropological argument as to why music is important, it provides a historical map charting community music through its initial growth and development punctuated by two key moments, 1984 and 2012/2013. Community music is described as a “field of practice,” and a visual representation of community music’s kaleidoscopic form reflects contemporary practices and the book’s overall structure. Following this, an overview of the central theoretical lineage and a brief sketch regarding the projects of Derrida and Deleuze enable an opportunity to explain why the author has engaged in their work. Finally, each chapter is summarized.
Intervention
Authors: Higgins Lee 
Published: September 2024

Abstract
Describing community music as an “active intervention” has become a common way to articulate the distinctive nature of its activities. This think piece sets out to consider the meaning of intervention and its association with community music practices and asks: Is the notion of intervention apt for a growing global field? In dialogue with cultural democracy, this chapter outlines positive and negative interpretations of the term intervention. It seeks to prompt community musicians to reflect on their cultural legacy and current practices. Exploring the term intervention provides community musicians an opportunity to recalibrate the language used, leading to an enhanced understanding of what community music does, what it can be, and what it is.
Hospitality
Authors: Higgins Lee 
Published: September 2024

Abstract
Since the book Community Music: In Theory and Practice (Higgins, 2012b), the notion of community music as an “act of hospitality” has become part of the lexicon associated with the practice. This think piece deepens this thought by asking, What makes the idea of community music as an act of hospitality important? After recapping the previous argument, hospitality is articulated as a conceptual pivot central to the human experience that can be understood as a cultural and social imperative in constructing relationships and fueling a need for belonging. By placing the host/guest relationship as central to the human experience, this chapter considers the first moments of contact between community musicians and potential music participants through ideas of the stranger, the threshold, and the place—a discussion surrounding the limits of hospitality grounds the idea within contemporary global tensions. Rethinking community through the lens of hospitality presents an opportunity to think critically about negotiating the boundaries between our dreams and our differing realities. As an act of hospitality, the notion of community presents us with the potential to say “yes,” an opportunity to be welcoming alongside a promise that is genuinely inclusive and without discrimination. As a cultural imperative of our time, hospitality is not exclusive to first encounters; it is a productive mindset that retains the notion of that original communication and can be applied to the everyday.
Inclusion and Excellence
Authors: Higgins Lee 
Published: September 2024

Abstract
When music participants work with musicians, they are typically in groups co-constructing the types of music to be created and identifying specific tasks and goals, emphasizing learning within the participants’ life context. With musicians working alongside people to actively identify their learning needs, the concept of inclusion has been at the heart of this approach. Responding to the question, How might notions of inclusion and excellence exist as a balanced pairing, this think piece draws upon a collaborative research project with music educator Jennie Henley. Examples of inclusion and excellence are illustrated through two examples of practice, and through a discussion, the author explores whether excellence is better articulated as a process and inclusion better expressed as an outcome of this process. Following this, the flight line amplifies the ideas before encouraging some reflective thought, noting that those working in the field might find a greater nuance in their language and their doing.
Becoming
Authors: Higgins Lee 
Published: September 2024

Abstract
In this think piece, the author asks, How might community music become? This provocation encourages those involved in community music practice to reflect upon its status, both within its own terms of reference and within the broader parameters of music making, teaching, and learning. The question is open and exploratory, containing a “might” rather than an “ought” or a “should,” and thus points toward opportunities to explore its challenge either as an individual practitioner or collaboratively as a group, as an ensemble, at a conference, at a symposium, or as part of an academic course. It is a chance to wonder or imagine community music’s future regarding impact, policy, pedagogy, musicking, and research. In part, it is an extension of questions regarding definition. Moving in, through, and between Deleuzian concepts, the chapter explores the idea that community music is a multiplicity, an assemblage that seeks relational connections and an endless potential configuration.
Present Bias and Debt-Financed Durable Goods
Authors: Bar-Gill Oren , Hayashi Andrew T 
Published: September 2024

Abstract
It has become common to view credit as problematic for present-biased consumers, who are tempted to incur too much debt because of its deferred costs. But while this view is generally valid when debt is used to finance current consumption, the picture becomes much more nuanced when credit is used to fund the purchase of durable goods—such as houses, cars, and education—which is the most common use of consumer credit. When bundled with the purchase of a durable good, the deferred cost feature of credit can be a feature, not a bug. The reason is that durable goods provide deferred benefits that are also undervalued by present-biased consumers. Moreover, people often need to save in advance to finance the purchase of a durable good, and present-bias makes it difficult to save. As a result, people with present bias tend to underconsume durable goods. We show that the deferred costs of purchase debt can offset these barriers to buying durable goods and make the present-biased consumer better off both by tempting her to buy something that she should—but would not otherwise—buy and by making it easier to save up for the purchase. (JEL D90, K0, G51)
BANMF-S: a blockwise accelerated non-negative matrix factorization framework with structural network constraints for single cell imputation
Authors: Zhao Jiaying , Ching Wai-Ki , Wong Chi-Wing , Cheng Xiaoqing 
Published: September 2024

Abstract

Motivation
Single cell RNA sequencing (scRNA-seq) technique enables the transcriptome profiling of hundreds to ten thousands of cells at the unprecedented individual level and provides new insights to study cell heterogeneity. However, its advantages are hampered by dropout events. To address this problem, we propose a Blockwise Accelerated Non-negative Matrix Factorization framework with Structural network constraints (BANMF-S) to impute those technical zeros.

Results
BANMF-S constructs a gene-gene similarity network to integrate prior information from the external PPI network by the Triadic Closure Principle and a cell-cell similarity network to capture the neighborhood structure and temporal information through a Minimum-Spanning Tree. By collaboratively employing these two networks as regularizations, BANMF-S encourages the coherence of similar gene and cell pairs in the latent space, enhancing the potential to recover the underlying features. Besides, BANMF-S adopts a blocklization strategy to solve the traditional NMF problem through distributed Stochastic Gradient Descent method in a parallel way to accelerate the optimization. Numerical experiments on simulations and real datasets verify that BANMF-S can improve the accuracy of downstream clustering and pseudo-trajectory inference, and its performance is superior to seven state-of-the-art algorithms.

Availability
All data used in this work are downloaded from publicly available data sources, and their corresponding accession numbers or source URLs are provided in Supplementary File Section 5.1 Dataset Information. The source codes are publicly available in Github repository https://github.com/jiayingzhao/BANMF-S.