bluuebunny/crossref_metadata_2025_split huggingface dataset:
Stories of devoted university students: the mathematical experience as a form of ascesis
Authors: Beccuti Francesco , Valero Paola , Robutti Ornella 
Published: September 2023

AbstractDrawing on autobiographical essays written by master’s students in mathematics preparing to become teachers, we investigate what mathematical identity these students articulate and how. By means of a discursive thematic analysis centered on the notion of ascesis, we show that the participants’ identity revolves around a characterization of mathematics as a challenging, useful, and comforting activity or knowledge, which is however regarded negatively by others. Indeed, mathematics is described as a uniquely challenging activity which requires an increasingly demanding self-discipline. Moreover, mathematics is depicted as a variously useful form of knowledge which is additionally capable to offer comfort to those who engage with it. However, the participants often remark that other people regard mathematics negatively, a fact explained by stressing others’ inability or unwillingness to understand or appreciate mathematics’ inherent positive features. This sets the boundary of an ideal club of math enthusiasts whose elitist membership is regulated in terms of acceptance or refusal of its constitutive values. Belonging to the club as well as proselytizing in order to recruit new members appears to be central to the participants’ mathematical identity.
Fertilization strategies to reduce yield-scaled N2O emissions based on the use of biochar and biochar-based fertilizers
Authors: Castejón-del Pino Raúl , Sánchez-Monedero Miguel A. , Sánchez-García María , Cayuela María L. 
Published: September 2023

AbstractNovel fertilization strategies, such as the use of biochar-based fertilizers (BBFs) and the co-application of biochar with mineral fertilizers, have shown promising results for mitigating nitrous oxide (N2O) emissions and reducing N losses in agroecosystems. Two greenhouse experiments were performed with radish to evaluate: (1) the mitigation of yield-scaled N2O emissions using BBFs, produced at either 400 or 800 °C and enriched with urea, compared to the co-application of raw biochars with urea; and (2) the N2O mitigation potential of low rates of raw biochars, equivalent to those used with BBFs fertilization, co-applied with low and high N rates (90 and 180 kg N ha−1). BBF produced at 800 °C reduced yield-scaled N2O emissions by 32% as compared to the urea treatment, and by 60%, as compared to the combination of raw biochar with urea. This reduction was attributed to the slow rate of N release in BBF. On the contrary, the co-application of low rates of biochar with urea increased yield-scaled N2O emissions as compared to the fertilization with urea alone. Low rates of biochar (1.4–3.1 t ha−1) reduced yield-scaled N2O emissions only with a high rate of N fertilization. High-pyrolysis-temperature biochar, co-applied with synthetic fertilizer, or used to produce BBFs, demonstrated lower yield-scaled N2O emissions than biochar produced at a lower pyrolysis temperature. This study showed that BBFs are a promising fertilization strategy as compared to the co-application of biochar with synthetic fertilizers.
Measures of morphological complexity of microalgae and their linkage with organism size
Authors: Lerf Verona , Borics Gábor , Tóth István , Kisantal Tibor , Lukács Áron , Tóthmérész Béla , Buczolich Zoltán , Bárány Balázs , Végvári Zsolt , T-Krasznai Enikő 
Published: September 2023

AbstractIn phytoplankton ecology the shape of microalgae appears predominantly as a categorical variable. Using shape-realistic 3D models of 220 microalgae we proposed and calculated six shape metrics and tested how these relate to each other and to the size of the microalgae. We found that some of the metrics are more sensitive to elongation, while others are related to multicellularity. We found a linear relationship between shape measures and the greatest axial linear dimensions of the microalgae. Our findings suggest that there is an evolutionary trade-off between the shape and size of the microalgae. It is important to stress that we found that surface area to volume ratio of the microalgae are hyperbolic functions of the length and volume for each shape. In our study, we demonstrated that the proposed shape metrics serve as suitable quantitative traits, and help to understand better how simple shapes evolved to more complex outlines.
Probucol attenuates high glucose-induced Müller cell damage through enhancing the Nrf2/p62 signaling pathway
Authors: Zhou Yu-Fan , Liu Heng-Wei , Yang Xu , Li Chen-Xiang , Chen Jian-Su , Chen Zhong-Ping 
Published: September 2023

Abstract
Purpose
This study investigated the protective effect of probucol on Müller cells exposed to high glucose conditions and examined potential mechanisms of action.

Methods
Primary human retinal Müller cells were incubated with high glucose (HG, 35 mM) in the present or absence of different concentrations of probucol for 24 h. Cell viability was determined using the CCK-8 method. Mitochondrial membrane potential (MMP) was measured using JC-1 staining and cell cycle by flow cytometry. The expression of nuclear factor E2-related factor 2 (Nrf2), glutamate–cysteine ligase catalytic subunit, and p62 was quantified using quantitative polymerase chain reaction and western blot.

Results
We found that HG inhibited cell proliferation, arrested cell cycle, and increased MMP in human Müller cells. Probucol activated the Nrf2/p62 pathway and upregulated the anti-apoptotic protein, Bcl2, and attenuated HG-mediated damage in Müller cells.

Conclusions
Our results suggest that probucol may protect Müller cells from HG-induced damage through enhancing the Nrf2/p62 signaling pathway.
Australian brown seaweeds as a source of essential dietary minerals
Authors: Skrzypczyk Vanessa M. , Callahan Damien L. , Francis David S. , Bellgrove Alecia 
Published: September 2023

AbstractSeaweeds are rich in essential dietary minerals, often lacking in terrestrial plant foods, with interest in Australian seaweeds rapidly increasing. We screened six Australian brown seaweeds with commercial potential for dietary mineral composition: Cystophora torulosa, Caulocystis uvifera, Durvillaea potatorum, Ecklonia radiata, Hormosira banksii and Phyllospora comosa. Spatial replicates of each species were collected from three non-urbanised sites remote from pollution sources and processed for human consumption. Dried samples were analysed by inductively coupled plasma mass spectrometry (ICP-MS) for 12 essential dietary minerals. Overall dietary mineral composition differed significantly amongst all species, except between sargassaceous species C. torulosa and C. uvifera; but concentrations of individual elements varied in complex ways. All species investigated had high concentrations of dietary minerals essential for optimal human health if consumed in realistic quantities (e.g. 10 g day−1 DW) as part of balanced diets, including the most common dietary minerals deficient in humans (iodine, iron, zinc, magnesium, calcium and selenium): iodine (888 ± 100 mg kg−1 DW) and zinc were highest in P. comosa; iron and calcium were highest in C. torulosa, but calcium was also high in E. radiata, H. banksii and D. potatorum; magnesium was highest in H. banksii, D. potatorum and P. comosa; selenium concentrations exceeded those previously reported for seaweeds for all species, except D. potatorum. The best nutritional outcomes may be achieved by regularly consumption of a diversity of seaweed species. However, further investigation into ways to reduce iodine content in some species may be required to maximise health benefits from regular consumption of these Australian seaweeds.
Invested Mothering: An Intersectional Analysis of Mothers’ Feminized Breadwinning Strategies Under State-Mandated Child Support Arrangements
Authors: Ponce Adriana 
Published: September 2023

AbstractThis article conceptualizes invested mothering to explain how mothers typically serve as both primary caregivers and financial providers under court-mandated shared parenting. A line of feminist literature has conceptualized hegemonic expectations of women’s caregiving through the umbrella theory of intensive mothering, and family scholars have studied how these ideologies influence parental investments in children. I assert that more research is necessary at the juncture of this scholarship, especially in contemporary family forms which reflect most parents’ reality. In this study, I analyze 46 in-depth interviews with parents under state-mandated child support arrangements as an empirical case of shared parenting experiences. I show that the onus is on mothers to secure financial resources for children’s basic and enrichment needs through relational, paid, and invisible work strategies—mothers enact invested mothering. An intersectional analysis reveals the distinct invested parenting work that mothers, especially low-income Black mothers who are the most disadvantaged, perform as adaptive strategies in the face of interlocking sexism, systemic racism, and historical economic inequality. Overall, mothers’ financial role as primary breadwinners is feminized as their contributions are unsupported, unacknowledged, and undervalued by both the courts and fathers.
Curcumin Loaded onto Folic acid Carbon dots as a Potent drug Delivery System for Antibacterial and Anticancer Applications
Authors: Serag Eman , Helal Mohamed , El Nemr Ahmed 
Published: September 2023

AbstractNumerous malignancies have been shown to be successfully treated with Curcumin. Despite its promising effects, Curcumin has limitations in clinical studies because of its stability, low water solubility, and adsorption. Carbon quantum dots with high biocompatibility can be employed as nanostructured material carriers to enhance Curcumin availability. In this study, folic acid was used as the raw material for the hydrothermal preparation of carbon dots, followed by the loading of Curcumin onto the carbon dots to form a folic acid carbon dot/Curcumin nanocomposite. The morphology and the chemical structure of the synthesized carbon dots were investigated. Folic acid carbon dots displayed robust emission peaks with a quantum yield of 41.8%. Moreover, the adsorption effectiveness of Curcumin on carbon dots was determined to be 83.11%. The liberating pattern of Curcumin was pH-dependent and reached 36 and 27% after a few hours at pH 5 and 7.4, respectively. The release occurs via the Fickiann diffusion mechanism with ah n value less than 0.45.The nanocomposite was tested for antibacterial activity against gram-negative Pseudomonas aeruginosa ATCC 27,853 and gram-positive Staphylococcus aureus ATCC 25,923. The nanocomposite displayed antibacterial behavior with MIC 12.5 µg/mL. The anticancer activities of the nanocomposite were further tested against high-folate receptor-expressing Hela cells (cervical malignancy) and low-folate receptor-expressing HepG2 cells (hepatocellular carcinoma). Folic acid carbon dot/Curcumin nanocomposite reduced Hela cell viability at an IC50 of 88.723 ± 0.534 g/mL. On the other hand, HepG2 cells showed no toxicity response.
Is Good Character All that Counts? A Comparison Between the Predictive Role of Specific Strengths and a General Factor of “Good Character” Using a Bifactor Model
Authors: Feraco Tommaso , Casali Nicole , Meneghetti Chiara , Greiff Samuel , Cona Giorgia 
Published: September 2023

AbstractCharacter strengths have been found to consistently predict many positive psychological outcomes, such as well-being, life satisfaction, and mental health, but research on the topic is still at its infancy and some methodological limitations must be overcome to better understand what character strengths are and what is their role. One main issue concerns the structure of character strengths and virtues, which may undermine the credibility and replicability of previous findings. Using two different samples (with 13,439 and 944 participants), we confirm that character strengths can be well described by a bifactor model reflecting the simultaneous existence of a general factor of ‘good character’ and the 24 specific character strengths. We found that the general factor consistently predicts participants’ life satisfaction, mental health, and distress symptoms. In addition, we show that the specific character strengths (with the few exceptions represented by gratitude, hope, and zest) do not predict life satisfaction and mental health above and beyond the general factor. These results highlight the need to better understand what this general factor really represents to finally capture the mechanisms linking character strengths between each other and with external outcomes. Implications for the measurement and interpretation of character strengths and for strength-based interventions are discussed.
An Unconditionally Energy Stable and Positive Upwind DG Scheme for the Keller–Segel Model
Authors: Acosta-Soba Daniel , Guillén-González Francisco , Rodríguez-Galván J. Rafael 
Published: September 2023

AbstractThe well-suited discretization of the Keller–Segel equations for chemotaxis has become a very challenging problem due to the convective nature inherent to them. This paper aims to introduce a new upwind, mass-conservative, positive and energy-dissipative discontinuous Galerkin scheme for the Keller–Segel model. This approach is based on the gradient-flow structure of the equations. In addition, we show some numerical experiments in accordance with the aforementioned properties of the discretization. The numerical results obtained emphasize the really good behaviour of the approximation in the case of chemotactic collapse, where very steep gradients appear.
Towards a Holistic Model of Care for Moral Injury: An Australian and New Zealand Investigation into the Role of Police Chaplains in Supporting Police Members following exposure to Moral Transgression
Authors: Phelps Andrea J. , Madden Kelsey , Carleton R. Nicholas , Johnson Lucinda , Carey Lindsay B. , Mercier Jean-Michel , Mellor Andrew , Baills Jeffrey , Forbes David , Devenish-Meares Peter , Hosseiny Fardous , Dell Lisa 
Published: September 2023

AbstractPolice members can be exposed to morally transgressive events with potential for lasting psychosocial and spiritual harm. Through interviews with police members and police chaplains across Australia and New Zealand, this qualitative study explores the current role that police chaplains play in supporting members exposed to morally transgressive events. The availability of chaplains across police services and the close alignment between the support they offer, and the support sought by police, indicates they have an important role. However, a holistic approach should also consider organizational factors, the role of leaders, and access to evidence-based treatment in collaboration with mental health practitioners.
Flammability and explosion characteristics of softwood dust
Authors: Przybysz Jan , Celiński Maciej , Mizera Kamila , Gloc Michał , Borucka Monika , Gajek Agnieszka 
Published: September 2023

AbstractIn technical terms, wood is a natural composite material with a polymer matrix, reinforced with fibres made of uniaxially oriented longitudinal cells. Due to the ease of obtaining and relatively low technological requirements related to its processing, wood is a common material used for various types of construction materials. An experimental investigation was carried out to determine the evolution of the ignition sensitivity and the explosion of three types of softwood dusts. Two of those dusts come from conifers and one from a deciduous tree. Complete fire characteristic requires several parameters describing wood dust behaviour under fire conditions including heat release rate (HRR), ignition time, or fire growth index. To determine those parameters, a cone calorimeter was used. Explosion characteristic was tested for representative wood as a dust sample in 20-L spherical vessel. Minimum ignition energy (MIE) was tested on MINOR II apparatus, which is a modified Hartman’s tube. Minimum ignition temperatures were tested with the use of layer ignition temperature apparatus and Godbert–Greenwald apparatus for minimum ignition temperature of a dust layer and dust cloud (MIT), respectively. Dust with the highest KST value, lowest MIE in the widest concentration range, and lowest MIT was pine wood dust. It also shows the shortest ignition time and a timespan between ignition and HRR peak.
Challenges of instruments that should tackle multi-hazard and multi-risk situations: an assessment of the recent reforms of the European Solidarity Fund and the Solidarity and Emergency Aid Reserve
Authors: Hochrainer-Stigler Stefan , Zhu Qinhan , Reiter Karina , Ciullo Alessio 
Published: September 2023

AbstractThe European Union has some dedicated tools and mechanisms available to respond to natural hazard events including the European Union Solidarity Fund (EUSF). It follows the objective of granting financial assistance to Member States in the event of a major disaster with serious consequences. In the latest EU long-term budget plan—the Multiannual Financial Framework 2021–2027—the EUSF was merged with the Emergency Aid Reserve (EAR) to form the new Solidarity and Emergency Aid Reserve (SEAR). One additional significant change was made in 2020 which saw an extension of the scope of the EUSF. This extension allowed the EUSF to cover losses incurred due to major public health emergencies such as the COVID-19 pandemic. It is therefore now a multi-hazard and multi-risk financing instrument designed to financially assist during the emergency phase in case of an emergency event. We assess the consequences of these changes in the light of potential advantages as well as disadvantages compared to the prior EUSF structure. The results will be used to provide some policy recommendations as to how to move forward with the identified challenges. We especially recommend separating the EUSF from the coverage of large-scale public health emergencies and the emergencies covered by the EAR. Instead, we suggest establishing a new flexibility instrument that covers emergencies such as public health related ones as well as the ones within the EAR. The analysis gives some important insights, scientific as well as policy wise, about advantages as well as limitations of financial instruments that simultaneously should tackle different types of hazards and risks.
Neuropsychological Deficits in Disordered Screen Use Behaviours: A Systematic Review and Meta-analysis
Authors: Moshel Michoel L. , Warburton Wayne A. , Batchelor Jennifer , Bennett Joanne M. , Ko Katherine Y. 
Published: September 2023

AbstractOver the last few decades, excessive and disordered screen use has become more prevalent, prompting investigations into its associated consequences. The extent to which disordered screen use behaviours impact neuropsychological functioning has been reportedly mixed and at times inconsistent. This review sought to synthesise the literature and estimate the magnitude of overall cognitive impairment across a wide range of disordered screen use behaviours. We also sought to determine the cognitive domains most impacted, and whether the observed impairments were moderated by the classification of screen-related behaviours (i.e., Internet or gaming) or the format of cognitive test administration (i.e., paper-and-pencil or computerised). A systematic search of databases (Embase, PsycINFO, MEDLINE) identified 43 cross-sectional articles that assessed neuropsychological performance in disordered screen use populations, 34 of which were included in the meta-analysis. A random-effects meta-analysis revealed significant small/medium (g = .38) cognitive deficits for individuals with disordered screen use behaviours relative to controls. The most affected cognitive domain with a significant medium effect size (g = .50) was attention and focus followed by a significant reduction in executive functioning (g = .31). The classification of disordered screen use behaviours into Internet or gaming categories or the format of cognitive testing did not moderate these deficits. Additionally, excluding disordered social media use in an exploratory analysis had little effect on the observed outcomes. This study highlights a number of methodological considerations that may have contributed to disparate findings and shows that disordered screen use can significantly impact cognitive performance. Recommendations for future research are also discussed. Data for this study can be found at https://osf.io/upeha/.
Group belief and direction of fit
Authors: Brown Jessica 
Published: September 2023

AbstractWe standardly attribute beliefs to both individuals and organised groups, such as governments, corporations and universities. Just as we might say that an individual believes something, for instance that oil prices are rising, so we might say that a government or corporation does. If groups are to genuinely have beliefs, then they need states with the characteristic features of beliefs. One feature standardly taken to characterise beliefs is their mind to world direction of fit: they should fit the way the world is. By contrast, desires are standardly taken to have a world to mind direction of fit: they aim for the world to be a certain way and are satisfied when the world fits them. Recently, Lackey (2021) has appealed to direction of fit to argue against certain nonsummative accounts of group belief. Here, I argue that on deeper inspection, belief’s mind to world direction of fit is difficult to accommodate on summative accounts of group belief including Lackey’s own neo-summative account. Further, I argue that direction of fit considerations in fact motivate the main non-summative approaches to belief, namely functionalism and interpretationism. Along the way, we see how addressing the issue of the direction of fit of group beliefs raises important questions about how to understand group evidence and its relationship to the evidence of members.
High-precision estimation of grass quality and quantity using UAS-based VNIR and SWIR hyperspectral cameras and machine learning
Authors: Oliveira Raquel Alves , Näsi Roope , Korhonen Panu , Mustonen Arja , Niemeläinen Oiva , Koivumäki Niko , Hakala Teemu , Suomalainen Juha , Kaivosoja Jere , Honkavaara Eija 
Published: September 2023

AbstractMiniaturised hyperspectral cameras are becoming more easily accessible and smaller, enabling efficient monitoring of agricultural crops using unoccupied aerial systems (UAS). This study’s objectives were to develop and assess the performance of UAS-based hyperspectral cameras in the estimation of quantity and quality parameters of grass sward, including the fresh and dry matter yield, the nitrogen concentration (Ncont) in dry matter (DM), the digestibility of organic matter in DM (the D-value), neutral detergent fibre (NDF), and water-soluble carbohydrates (WSC). Next-generation hyperspectral cameras in visible-near-infrared (VNIR, 400–1000 nm; 224 bands) and shortwave-infrared (SWIR; 900–1700 nm; 224 bands) spectral ranges were used, and they were compared with commonly used RGB and VNIR multispectral cameras. The implemented machine-learning framework identified the most informative predictors of various parameters, and estimation models were then built using a random forest (RF) algorithm for each camera and its combinations. The results indicated accurate estimations; the best normalised root-mean-square errors (NRMSE) were 8.40% for the quantity parameters, and the best NRMSEs for the quality parameters were 7.44% for Ncont, 1% for D-value, 1.24% for NDF, and 12.02% for WSC. The hyperspectral datasets provided the best results, whereas the worst accuracies were obtained using the crop height model and RGB data. The integration of the VNIR and SWIR hyperspectral cameras generally provided the highest accuracies. This study showed for the first time the performance of novel SWIR range hyperspectral UAS cameras in agricultural application.