bluuebunny/crossref_metadata_2025_split huggingface dataset:
Student mental health and dropout from higher education: an analysis of Australian administrative data
Authors: Zając Tomasz , Perales Francisco , Tomaszewski Wojtek , Xiang Ning , Zubrick Stephen R. 
Published: February 2023

AbstractUnderstanding the drivers of student dropout from higher education has been a policy concern for several decades. However, the contributing role of certain factors—including student mental health—remains poorly understood. Furthermore, existing studies linking student mental health and university dropout are limited in both methodology and scope—for example, they often rely on small and/or non-representative samples or subjective measures, and focus almost exclusively on main effects. This paper overcomes many of these shortcomings by leveraging unique linked administrative data on the full population of domestic students commencing undergraduate studies at Australian universities between 2012 and 2015 (n = 652,139). Using these data, we document that approximately 15% of students drop out of university within their first academic year. Critically, students receiving treatment for mental health problems are 4.3 (adjusted) to 8.3 (unadjusted) percentage points more likely to drop out of higher education. This association remains in the presence of an encompassing set of potential confounds, and is remarkably uniform across segments of the student population determined by individual, family, and programme characteristics. Altogether, our findings call for increased policy efforts to improve student mental health and to buffer against its deleterious effects on retention.
On the Emergence of Routines: An Interactional Micro-history of Rehearsing a Scene
Authors: Schmidt Axel , Deppermann Arnulf 
Published: February 2023

AbstractIn workplace settings, skilled participants cooperate on the basis of shared routines in smooth and often implicit ways. Our study shows how interactional histories provide the basis for routine coordination. We draw on theater rehearsals as a perspicuous setting for tracking interactional histories. In theater rehearsals, the process of building performing routines is in focus. Our study builds on collections of consecutive performances of the same instructional task coming from a corpus of video-recordings of 30 h of theater rehearsals of professional actors in German. Over time, instructions and their implementations are routinely coordinated by virtue of accumulated shared interactional experience: Instructions become shorter, the timing of responses becomes increasingly compacted and long negotiations are reduced to a two-part sequence of instruction and implementation. Overall, a routine of how to perform the scene emerges. Over interactional histories, patterns of projection of next actions emanating from instructions become reliable and can be used by respondents as sources for anticipating and performing relevant next actions. The study contributes to our understanding of how shared knowledge and routines accumulate over shared interactional experiences in publicly performed and reciprocally perceived ways and how this impinges on the efficiency of joint action.
Against verb-stranding VP-ellipsis in Japanese: reply to Funakoshi (2016)
Authors: Tanaka Hidekazu 
Published: February 2023

AbstractJapanese has a deletion operation, called argument ellipsis, that targets arguments (Oku in A theory of selection and reconstruction in the minimalist program, 1998). The operation does not apply to adjuncts, and thus, adjuncts are unelidable. Funakoshi (J East Asian Linguist 25(2):113–42, 2016), following in the footsteps of Otani and Whitman (Linguist Inquiry 22:345–58, 1991), argues that adjuncts can be elided when V-stranding VP-deletion applies. This article refutes Funakoshi’s proposal. Under rigorous control, adjuncts are generally unelidable even when the context strongly favors the adjunct inclusive interpretation, showing that the language lacks VP-deletion. It is also shown that, for a small number of speakers who permit the adjunct inclusive interpretation, the interpretation is sensitive to island constraints. The observation is attributed to covert right dislocation (Tanaka in J Linguist 37:551–79, 2001), marginally available for such speakers.
Initial Effect of Temperature Rise on α-Synuclein Aggregation – Entropic Forces Drive the Exposure of Protein Hydrophobic Groups Probed by Fluorescence Spectroscopy
Authors: Saraiva Marco A. , Florêncio M. Helena 
Published: February 2023

AbstractThe aberrant formation of α-synuclein (Syn) aggregates, varying in size, structure and morphology, has been linked to the development of Parkinson’s disease. In the early stages of Syn aggregation, large protein amyloid aggregates with sizes > 100 nm in hydrodynamic radius have been noticed. These low overall abundant large Syn aggregates are notoriously difficult to study by conventional biophysical methods. Due to the growing importance of studying the early stages of Syn aggregation, we developed a strategy to achieve this purpose, which is the study of the initial effect of the Syn protein aqueous solutions temperature rise. Therefore, the increase of the Syn aqueous solutions entropy by the initial effect of the temperature rise led to the exposure of the protein hydrophobic tyrosyl groups by not interfering with this amyloid protein aggregation. As an attempt to interpret the degree of the referred protein tyrosyl groups exposure, the classic rotameric conformations of the Nα-acetyl-L-tyrosinamide (NAYA) parent compound were used. For both NAYA and Syn, it was determined that the classic rotameric conformations involving the tyrosyl groups indeed accounted for their exposure under steady-state conditions of fluorescence, for lowest molecular species concentrations investigated at least. In this situation, Syn aggregation was observed. For the higher NAYA and Syn concentrations studied, the referred classic rotameric conformation were insufficient in such referred steady-state conditions and, for Syn, in particular, fluorescence anisotropy measurements revealed that less protein aggregation occurs along with its delay. Overall, the developed strategy by focusing on the initial effect of the temperature rise of Syn aqueous solutions in lower concentrations is suitable for informing us about the degree of this protein aggregation in solution.
Local2Global: a distributed approach for scaling representation learning on graphs
Authors: Jeub Lucas G. S. , Colavizza Giovanni , Dong Xiaowen , Bazzi Marya , Cucuringu Mihai 
Published: February 2023

AbstractWe propose a decentralised “local2global” approach to graph representation learning, that one can a-priori use to scale any embedding technique. Our local2global approach proceeds by first dividing the input graph into overlapping subgraphs (or “patches”) and training local representations for each patch independently. In a second step, we combine the local representations into a globally consistent representation by estimating the set of rigid motions that best align the local representations using information from the patch overlaps, via group synchronization. A key distinguishing feature of local2global relative to existing work is that patches are trained independently without the need for the often costly parameter synchronization during distributed training. This allows local2global to scale to large-scale industrial applications, where the input graph may not even fit into memory and may be stored in a distributed manner. We apply local2global on data sets of different sizes and show that our approach achieves a good trade-off between scale and accuracy on edge reconstruction and semi-supervised classification. We also consider the downstream task of anomaly detection and show how one can use local2global to highlight anomalies in cybersecurity networks.
A torsion-based solution to the hyperbolic regime of the $$J_2$$-problem
Authors: Lara Martin , Masat Alessandro , Colombo Camilla 
Published: February 2023

AbstractA popular intermediary in the theory of artificial satellites is obtained after the elimination of parallactic terms from the $$J_2$$

J
2

-problem Hamiltonian. The resulting quasi-Keplerian system is in turn converted into the Kepler problem by a torsion. When this reduction process is applied to unbounded orbits, the solution is made of Keplerian hyperbolae. For this last case, we show that the torsion-based solution provides an effective alternative to the Keplerian approximation customarily used in flyby computations. Also, we check that the extension of the torsion-based solution to higher orders of the oblateness coefficient yields the expected convergence of asymptotic solutions to the true orbit.
Games as Authorial Platforms? An Exploration of the Legal Status of User-Created Content from Digital Games
Authors: Aroni Gabriele 
Published: February 2023

AbstractDigital games can be considered as composed of two main components: the props, i.e. visual, textual, and aural elements such as codes, 3D models and animations; and the form, specially the interaction between players and games, the act of playing itself. This dichotomy thus begs the question whether digital games are indeed games if nobody plays them, and ultimately: who is the owner of the gameplay and any by-product of the interaction between the game and the players? This paper explores the copyright status of content created by users with digital games, such as gameplay videos and images, for example art based on digital game assets, namely virtual photography; as well as customized in-game objects. Many modern digital games offer considerable freedom to players, in terms of how the action on screen evolves and the visual outcomes that the game can produce. Scholars have asserted that digital games avatars, the characters created in games, should be considered a joint work between players and the game developers and some game companies allow the commercial use of videos created from their games. Conversely, other companies expressly prohibit such use, and issue DMCA takedown notices to infringers. Attention will be devoted to specific games as authorial tools, such as SpaceEngine and Townscaper, where there are neither objectives nor challenges, but they are rather tools that enable players’ creativity.
A Longitudinal Dyadic Study of Six Leisure Activities in Swedish Couples During the Transition to Parenthood
Authors: Zheng Lucy R. , Naurin Elin , Markstedt Elias , Olander Petrus , Elden Helen , Linden Karolina 
Published: February 2023

AbstractParents are not only caregivers to their children; they also have leisure routines that can impact their own well-being. However, little is known about how leisure activities change within the context of a couple during the transition to parenthood. This study uses latent growth curve models and data from the Swedish Pregnancy Panel to examine how often 918 first-time, heterosexual couples participated in six leisure activities from around pregnancy week 19 to one year postpartum. Compared to fathers, mothers less frequently exercised and listened to news, and more frequently read newspapers, spent time for themselves, and spent time with friends. Over time, mothers increased their frequency of praying to God and decreased spending time for themselves and with friends. Fathers decreased frequency of exercise. Within couples, there was a positive correlation between mothers’ and fathers’ frequency of engaging in leisure activities, although most changes over time were not associated. Our finding that two individuals within a couple may change their leisure activities independently of each other during the transition to parenthood can help healthcare professionals and researchers prepare expectant couples for upcoming changes (or lack thereof) and promote parent well-being. Our findings also highlight the possibility that in contexts with more state support for families, parenthood may not exacerbate gender gaps in leisure.
Molecular characterisation and additional morphological descriptions of Eimeria spp. (Apicomplexa: Eimeriidae) from brown kiwi (Apteryx mantelli Bartlett)
Authors: Coker Sarah M. , McInnes Kate , Vallee Emilie , Biggs Patrick , Pomroy William E. , Howe Laryssa , Morgan Kerri J. 
Published: February 2023

AbstractBrown kiwi (Apteryx mantelli Bartlett), a ratite endemic to New Zealand, is currently listed as “Vulnerable” under the IUCN classification system due to predation by introduced mammals. Operation Nest Egg (ONE) raises chicks and juveniles in predator-proof enclosures until they are large enough to defend themselves. These facilities experience an environmental accumulation of coccidial oocysts, which leads to severe morbidity and mortality of these kiwi. Four species of coccidia have been morphologically described from sporulated oocysts with additional opportunistic descriptions of endogenous stages. This research continues the morphological descriptions of these species of Eimeria with an additional novel morphotype also morphologically described. It also provides the first genetic characterisation targeting the mitochondrial cytochrome c oxidase I (COI) gene. Based on these findings, it was determined there are at least five morphotypes of Eimeria that infect brown kiwi and co-infections are common at the ONE facilities surveyed. The COI amplicon targeted for this study was sufficient to provide differentiation from other members of this genus. Sanger sequencing yielded ambiguous bases, indicating the need for more in-depth sequencing.
Transgenic HPV11-E2 protein modulates URR activity in vivo
Authors: Wang Shubei , Gramm Vera , Laport Elke , Holland-Letz Tim , Alonso Angel , Schenkel Johannes 
Published: February 2023

AbstractIn vitro experiments have shown that the E2 protein of human papillomaviruses (HPV) binds to the upstream regulatory region (URR) of the viral genome and modulates transcription. Additionally, it seems to be a necessary component for viral DNA replication together with E1. We have developed a transgenic mouse model containing the URR region of the low-risk virus HPV11 that regulates the expression of the lacZ reporter gene. Most interestingly, in these mice, the transgene was exclusively expressed in the bulge region of the hair follicle but not in any other tissues. Further experimental data indicate that in double transgenic mice that also express the HPV11-E2 protein under the control of the Ubiquitin C-promoter, the transcription of the reporter gene is modulated. When E2 is present, the expression of the reporter gene also occurs exclusively in the bulge region of the hair follicles as it does in the single transgenic mice, but the expression of the lacZ driven by the URR is increased and the statistical spread is greater. Even if the expression of the reporter gene occurs in the hair follicles of the dorsal skin of an animal uniform, E2 obviously has the capacity for both to induce and to repress the URR activity in vivo.
Vaccination and mortality from COVID-19: a comparative study between hemodialysis, peritoneal dialysis, and non-dialysis adult population in Panama
Authors: Courville Karen J. , Bustamante Norman E. , Nuñez-Samudio Virginia , Pecchio Maydelin , Landires Iván , Viggiano Carlos , Durán Herna , Novoa Nadji , Alvarado Ernesto , Vargas Francisco , Salado Dayan , Manzanares José , Haughton Kelly , Cuero César , Niedda María , Valdés Régulo 
Published: February 2023

Abstract
Purpose
Dialysis patients have a different response than the non-dialysis population to infection with COVID-19. This study evaluates the prevalence of infection and lethality in patients receiving hemodialysis or peritoneal dialysis in Panama, compared to non-dialysis adult population, and reports of adverse events of vaccination.

Methods
This is a prospective, multi-center cohort study of spatients aged 18 years or older and receiving in-center hemodialysis or ambulatory peritoneal dialysis in 13 centers in Panama from March 2021 to 2022. For comparison with general population, the study used an extended period of two years.

Results
A total of 1531 patients receiving dialysis treatment accepted to participate. PD patients represented an 18% of study patients. Lethality was higher in peritoneal dialysis patients with COVID-19 infection than in hemodialysis in the study group (p 0.02). Total deaths in dialysis patients for 2020 were 156 patients, before vaccination; 79 in 2021; and 25 for the first trimester of 2022. Lethality for the period of 2020–2022 was 9.3% for dialysis patients and 0.2% for non-dialysis population. There was no difference in symptoms in first dose, but with second dose, hemodialysis patients reported fewer symptoms than peritoneal dialysis patients (p < 0.0001).

Conclusion
Ninety one percent of people in the country received BNT162b2 Pfizer BionTech vaccine. Lethality decreased from 30 to 5% once vaccination was available. There were no severe adverse effects and symptoms reported were less frequent than in general population, probably due to low reactogenicity in dialysis patients, or better tolerance to pain.
Tracing the state of sport management research: a bibliometric analysis
Authors: Hammerschmidt Jonas , Calabuig Ferran , Kraus Sascha , Uhrich Sebastian 
Published: February 2023

AbstractThis article presents a state-of-the-art overview of the sport management research discipline through a bibliometric analysis of publication data from the top five sport management journals in the decade 2011–2020. The analysis includes citation and productivity analysis of journals, institutions, countries, and articles, author citation and output analysis, and title and abstract (co-)word analysis. The data identifies the Sport Management Review as the most prolific journal of the last decade. Institutions and authors from the US are dominating the sport management research, which has increased its attractiveness in other disciplines. Co-word analysis shows recent and frequently discussed topics related to management of sport organizations and events, team and game, sport marketing and sponsorship, and behaviour and identification of the spectator. The article serves the ongoing debate on sport management as an academic field with deep insights into the publication structure and thematic dynamics of the last decade.
The Thermodynamic Modelling of the Zn Slag Fuming with the Use of Coal and Ammonia
Authors: Khartcyzov Georgii , Shishin Denis , Ek Magnus , Jak Evgueni 
Published: February 2023

AbstractSlag fuming process is used to extract zinc from the lead blast furnace slags and recently for the extraction of multiple elements from the complex primary and recycling feed streams, making the thermochemistry of the process challenging. To meet new challenges, computer models with predictive powers outside of the range of normal process conditions are necessary. These models cannot rely exclusively on sets of existing process data and must have a foundation in thermodynamics combined with reasonable kinetic factors. The accuracy of predictions largely depends on the quality of thermodynamic data, including phase equilibria, elemental distributions, and calorimetry measurements. Present study demonstrates the recent developments of the self-consistent thermodynamic model for the gas/slag/matte/metal/speiss/solid phases within the Cu-Pb-Zn-Fe-Ca-Si-O-S-Al-Mg-As-Sb system, applied to zinc fuming, with attention to the phase equilibria and partitioning of minor elements in the process. As a demonstration of calculations far outside of normal operations, the use of ammonia as an alternative to coal is investigated. It was shown that from the thermodynamic point of view the process can reach the same final concentration of zinc and the heat balance of the reactor in the same amount of time when coal is replaced in the process by ammonia.
Prevention of sexual violence in sports boarding schools: a survey from Germany
Authors: Wagner Ingo , Rulofs Bettina 
Published: February 2023

AbstractNumerous sexual violence cases have been reported in boarding schools as well as in sports organizations. However, no studies have been conducted so far that investigate the prevention of sexual violence in sports boarding schools. Our study explores to what extent sports boarding schools in Germany register sexual violence as a relevant problem in their organizations and which prevention measures they apply. Based on a theoretical framework of organizational development, the organizational structures, the organizational cultures and the grades of change toward the prevention of sexual violence were analyzed. To this end, a survey with representatives from all 59 sports boarding schools in Germany was conducted. The results reveal various aspects that can be improved regarding organizational development and specific prevention measures. Among other results, a regression analysis shows the importance to structurally anchor the topic in the organization, to develop an actively campaigning culture, to establish an internal self-obligation, and to conduct a theme-specific evaluation to ensure better protection of all athletes in sports boarding schools.
Combustion and mass loss behavior and characteristics of a single biomass pellet positioning at different orientations in a fixed bed reactor
Authors: El-Sayed Saad A. , Mostafa Mohamed E. , Khass Tarek M. , Noseir Emad H. , Ismail Mohamed A. 
Published: February 2023

Abstract
This study aims to investigate the combustion characteristics and mass loss behaviors of rice straw and wheat straw biomass pellets experimentally in a laboratory fixed bed combustor under various operating conditions. High-speed photography was used to record images of the combustion process, and a sensitive balance was utilized for recording the particle mass history during the combustion process in addition to K-type thermocouples for temperature measurements. For both materials, the single pellet was exposed to various air temperatures and different flow rates of air. The orientation of the biomass pellet was positioned at various angles from 0 (horizontal), 30°, 45°, 60° (inclined), and 90° (parallel) to the hot air stream at different flow rates. Both glowing reactions and flameless ignition have been noticed in all experiments at all pellet orientations. All pellets experienced low and high luminosity volatiles without flames, followed by a bright radish color and short-lived combustion of the chars. Although the volatile contents of the two materials are identical, the volatile combustion duration of wheat straw (17–258 s) is less than that of rice straw (20–300 s), which could be due to differences in particle sizes, shapes, and structural compositions. The results also show that increased air temperatures lessen the time it takes for volatile and char to ignite and burn off. It also raises the temperature of surface ignition. Starting from the horizontal position and increasing the orientation angle of the pellet, the volatile and char ignition times increase up to 30° and then drop up to 90°, with angle 45° giving the lowest value. The same pattern was also noticed for volatile and char burnout times. The pellet horizontal position (0°) exhibits reduced combustion and mass loss (%) time intervals. The order of increasing the maximum temperature at the pellet surface was 30° > 60° > 90° angles. Increasing the air temperature reduces the times of char combustion, devolatilization, volatile burnout, and char burnout. As the air flow rate increases, the effect on the combustion parameters alternates between increasing and decreasing values.