bluuebunny/crossref_metadata_2025_split huggingface dataset:
Recent advances and applications of low-cost GNSS receivers: a review
Authors: Hamza Veton , Stopar Bojan , Sterle Oskar , Pavlovčič-Prešeren Polona 
Published: January 2025

Abstract
Low-cost (LC) Global Navigation Satellite System (GNSS) receivers are argued as an alternative solution to geodetic GNSS counterparts for different applications. Single-frequency low-cost (SF-LC) GNSS receivers have been in the market for many years while their inability to acquire GNSS observations in second frequency limited their use. A few years ago, dual-frequency low-cost (DF-LC) GNSS receivers with enhanced capabilities entered the mass market, considering the advancements they have been tested and evaluated by many researchers. Lastly, multi-frequency low-cost (MF-LC) GNSS receivers become available. With the ability to track more satellite signals, these GNSS receivers are expected to obtain better overall performance. This review article aims to analyze recent advances and applications of LC GNSS receivers. To provide answers to the research question relevant articles were selected and analyzed. From the reviewed articles, it was concluded that the performance of SF-LC and DF-LC GNSS receivers is comparable to that of geodetic counterparts only in open-sky conditions. However, in adverse conditions, the differences become more highlighted. In such environments, SF and DF-LC GNSS receivers face challenges not only with positioning quality but also with their proper work. Limited studies on MF-LC receivers have reported comparable observations and positioning performance to geodetic GNSS receivers. Despite drawbacks, LC GNSS receivers have been successfully applied in surveying, mapping, geodetic monitoring, precision agriculture, navigation, atmosphere monitoring, Earth surface monitoring, and other fields.
OsOZ1, a zinc finger motif-containing protein, is essential for chloroplast development through RNA editing and intron splicing in rice
Authors: Wang Zhongwei , Zhu Zichao , Li Minghong , Xie Xiaoyan , Hao Peiyuan , Tan Jie , Chen Yang , Bai Wenqin , Guo Longbiao , Hu Mingyu 
Published: January 2025

Abstract
The chloroplast is the primary organelle for photosynthesis in plants. A clade of proteins containing RanBP2-type zinc-finger domain, known as the Organelle Zinc (OZ) finger family, are known or predicted to be targeted to mitochondria or chloroplast. While some OZ proteins have been studied in Arabidopsis, there are few reports of their roles in rice. In this study, we characterized the Organelle Zinc finger family gene OsOZ1 and generated the oz1 mutants using the CRISPR-Cas9 genome editing system in rice. The oz1 mutants exhibited a seedling-lethal chlorosis phenotype, with a significantly reduced chlorophyll content at the third-leaf stage compared to the wild type. Transmission electron microscopy and quantitative real-time PCR analysis revealed that the oz1 mutants displayed abnormal chloroplast development relative to the wild type, along with significant alterations in gene expression levels related to chloroplast development and photosynthesis. The oz1 mutants demonstrated defects in chloroplast RNA editing, particularly in atpA-1148, ndhB-467, ndhB-586, ndhB-737 and ndhB-830, while the splicing of ndhA, trnG and ycf3-1 was significantly decreased in the oz1 mutants compared to the wild type. The yeast two-hybrid assay demonstrated that OsOZ1 interacts with the PPR protein OsSLC1, the ORRM protein OsORRM1 and the MORF/RIP protein OsMORF9. This suggests that OsOZ1 may form complexes with OsSLC1, OsORRM1 and OsMORF9, thereby participating in chloroplast RNA editing and splicing activities. Overall, these findings indicate that OsOZ1 plays a crucial role in chloroplast development by regulating the editing and splicing of chloroplast RNA in rice.
Application of shape analysis for the identification of pelagic fish stocks
Authors: Vasconcelos Joana , Cirera María , Vieira Ana Rita , Otero-Ferrer José Luís , Tuset Víctor M. 
Published: January 2025

Abstract
This study explores local variations in body and otolith shape of Trachurus trachurus from the Ibero-Mauritanian coastal stock in the South European Atlantic Shelf ecoregion, essential for effective stock management. We used geometric morphometrics and wavelet functions to analyze samples from Galicia, Peniche, and the Gulf of Cádiz. Comparing fresh and frozen specimens revealed significant shape changes due to freezing. Our results confirm that unique environmental conditions in the South European Atlantic Shelf ecoregion contribute to distinct local populations. The northern population had a more elongated body and lanceolate otoliths, while the southern population displayed a wider body and oval otoliths. Central region specimens exhibited intermediate characteristics. Four distinct morphotypes were identified, with region-specific distributions. These findings suggest local adaptations within the Ibero-Mauritanian stock, emphasizing the need to account for these differences in management strategies to ensure sustainability. Future studies should include larger, more diverse samples, especially from the Mediterranean, to further understand stock structure.
Loud Call Production in Male Vervet Monkeys (Chlorocebus pygerythrus) Varies with Season and Signaller Rank
Authors: Schad Lukas , Dongre Pooja , van de Waal Erica , Fischer Julia 
Published: January 2025

Abstract
Adult males of many nonhuman primate species utter characteristic loud calls that are audible over long distances and serve various functions. In response to large terrestrial predators, male vervet monkeys (Chlorocebus pygerythrus) produce loud ‘barks’ that alert group members and are assumed to deter predators. It is less well known that male vervet monkeys also produce barks during aggressive interactions within and between groups. Here, we investigated whether barks potentially serve a dual function as alarm calls and quality signals. We used ad-libitum event sampling to record natural barking events from 45 adult males in six free-ranging groups over 24 months at Mawana Game Reserve, KwaZulu-Natal, South Africa. For each barking event in groups with multiple males, we aimed to record whether each adult male in the group barked or not. Using generalised linear mixed models, we investigated whether the number of barking events recorded per observation day and the probability that an individual male barked in each event were associated with male rank, the number of males in the group, the adult sex ratio, and the mating season. The highest-ranking males showed a very high probability of barking, and the number of daily barking events increased during the mating season. Males frequently barked in aggressive interactions, supporting the hypothesis that this signal plays a role in male–male competition. We conclude that, in addition to serving as alarm calls, barks may also advertise male competitive ability or motivation to compete.
Can a low emission zone improve academic performance? Evidence from a natural experiment in the city of Madrid
Authors: Valdés Manuel T. , Espadafor Mar C. , Conte Keivabu Risto 
Published: January 2025

Abstract
In the last decades, various policies have been implemented to reduce air pollution exposure and improve public health outcomes. Among these, low emission zones (LEZs) have been shown to effectively enhance air quality and health outcomes. However, their potential positive externalities on other outcomes, such as academic performance, remain largely unexplored. This study examines the LEZ introduced in the city of Madrid in late 2018 and investigates its impact on the academic performance of students schooled in the designated area. Using a difference-in-differences design, we demonstrate the policy’s effectiveness in improving air quality during its first 4 years. Subsequently, we find a significant increase of 0.20 standard deviations in the average EvAU scores (a high-stakes examination for university admission) among high schools located within the LEZ, a critical advantage for students seeking entry into the most competitive university programmes. Notably, our findings reveal positive spillover effects in the surroundings of the LEZ area and a greater improvement with longer and earlier exposure to cleaner air. Overall, this study offers compelling evidence of the educational benefits resulting from the implementation of a low emission zone that successfully improves air quality.
Big fish in little ponds are less anxious about math: a multilevel analysis of school average achievement on math anxiety
Authors: Ahmed Wondimu 
Published: January 2025

Abstract
Math anxiety has significant implications for math achievement and math-related career paths. Previous research on antecedents of math anxiety primarily focused on individual factors, while the role of the contextual effect of school has received limited attention. This study sought to address this gap by examining the effect of school-average achievement on math anxiety while considering the mediating role of math self-concept and the moderating role of perceived control. The sample consisted of 4,978 fifteen-year-old students from the USA (49.3% Female). The results of the multilevel analysis revealed that school-average achievement positively predicted math anxiety, even after controlling for individual student achievement, SES, and gender. The results also showed that math self-concept mediated the relationship between school-average achievement and math anxiety. Furthermore, perceived control moderated the effect of school-average achievement on math anxiety. These findings shed light on the complex dynamics between school context, individual factors, and math anxiety.
Estimation of Fatigue Limit for Aluminum Alloy Laser Welds Based on Dissipated Energy
Authors: Yamamoto T. , Ogawa Y. , Hayashi M. , Kadoi K. , Shiozawa D. , Sakagami T. 
Published: January 2025

Abstract

Background
Laser welding has a faster processing speed than other welding techniques. However, defects can occur under various welding conditions, and high safety and reliability are required for applying laser welding to actual mechanical structures.

Objective
This study focused on estimating the fatigue limit by dissipated energy which is the energy loss resulting in fatigue damage owing to localized plastic deformation. This study was conducted to determine whether the fatigue limit of aluminum alloy laser welds can be rapidly estimated using the dissipated energy.

Methods
In a test with a stepwise increase in stress amplitude, the dissipated energy and the strain were measured by infrared thermography and digital image correlation from displacement measurements with a visible camera, respectively. In the fatigue limit estimation using dissipated energy, the fatigue limit is determined by the empirical rule that the stress amplitude with increasing the dissipated energy is the estimated fatigue limit.

Results
Laser welds exhibited the highest dissipated energy at the fracture origin of the joint. Therefore, the crack initiation point of welded joints can be visualized by measuring the dissipated energy. If the boundary value of both groups in the domain decomposition method using the least-squares approximation is the estimated fatigue limit, the estimated fatigue limits for the aluminum alloy laser welds and those base material specimens are almost consistent with the actual fatigue limits.

Conclusions
The fatigue limit estimation using the dissipated energy can be applied to aluminum alloy laser welds.
Bayesian Inference of Phylogenetic Distances: Revisiting the Eigenvalue Approach
Authors: Penn Matthew J. , Scheidwasser Neil , Donnelly Christl A. , Duchêne David A. , Bhatt Samir 
Published: January 2025

Abstract
Using genetic data to infer evolutionary distances between molecular sequence pairs based on a Markov substitution model is a common procedure in phylogenetics, in particular for selecting a good starting tree to improve upon. Many evolutionary patterns can be accurately modelled using substitution models that are available in closed form, including the popular general time reversible model (GTR) for DNA data. For more complex biological phenomena, such as variations in lineage-specific evolutionary rates over time (heterotachy), other approaches such as the GTR with rate variation (GTR

$$+\Gamma $$

+
Γ

) are required, but do not admit analytical solutions and do not automatically allow for likelihood calculations crucial for Bayesian analysis. In this paper, we derive a hybrid approach between these two methods, incorporating

$$\Gamma (\alpha ,\alpha )$$

Γ
(
α
,
α
)

-distributed rate variation and heterotachy into a hierarchical Bayesian GTR-style framework. Our approach is differentiable and amenable to both stochastic gradient descent for optimisation and Hamiltonian Markov chain Monte Carlo for Bayesian inference. We show the utility of our approach by studying hypotheses regarding the origins of the eukaryotic cell within the context of a universal tree of life and find evidence for a two-domain theory.
Hydrogen Effects on Hall–Petch Coefficient and Fracture Strength in Pure Ni and Ni-20Cr Alloy: A Macroscopic Insight of the Hydrogen Embrittlement Mechanism
Authors: Koyama Motomichi , Tomatsu Kota , Kakinuma Hiroshi , Ajito Saya , Akiyama Eiji 
Published: January 2025

Abstract
The effects of Cr and H on the yield and fracture strengths in pure Ni and Ni-20Cr alloy were investigated based on the Hall–Petch relationship. The Hall–Petch coefficient, which depends on the dislocation pile-up length and slip transfer resistance at the grain boundaries, drastically increased by 20 pct Cr addition and unchanged by gaseous hydrogen charging at 80 MPa. These results indicate that Cr increased the intergranular stress concentration associated with dislocation pile-up, whereas H did not.
Cold Spray Additive Manufacturing of SmCo-Al Permanent Magnets
Authors: Giguère Jaël , Lamarre Jean-Michel , Bernier Fabrice , Nascimento Alexandre , Lacroix Christian , Ménard David , Sirois Frédéric 
Published: January 2025

Abstract
A key factor to ensure a sustainable future for the air transport industry is electrification. Exploring new designs for permanent magnet electric motors could increase their potential. Unfortunately, complex shaped magnets cannot be produced easily using current fabrication methods. Cold spray additive manufacturing could eventually help to alleviate this problem by allowing the fabrication of magnets with complex geometries consolidated on electric motor parts. Furthermore, another aspect to increase the electric motors’ efficiency is the possibility to operate at higher RPM and with higher electrical currents, consequently generating more heat. Currently, most magnets are prepared with NdFeB, which is less tolerant to high-temperature exposure. This work reports on the cold spray additive manufacturing of samarium-cobalt (SmCo), a material of growing interest since it preserves most of its magnetic properties up to 350 °C. The permanent magnets were fabricated using a SmCo-Al composite powder mix in a standardized simple geometry to evaluate the impact of the fabrication parameters. The impact of the powder mix composition and the gas temperature on the magnetic properties is investigated. The results demonstrate that the use of cold spray would be effective for fabricating SmCo composite permanent magnets directly on the electric motor parts.
Does the phosphorylation of MAP65-1 correlate with the effects of Cr(VI) on Arabidopsis thaliana microtubules?
Authors: Adamakis Ioannis-Dimosthenis S. , Eleftheriou Eleftherios P. 
Published: January 2025

Abstract

Key message
MAP65-1 phosphorylation mediates Cr(VI)-induced microtubule disruption in plants.

Abstract
Chromium (Cr) exists in two prevalent forms in the environment: trivalent Cr(III) and hexavalent Cr(VI). While Cr(III) can benefit plants as a micronutrient, Cr(VI) is highly toxic and disrupts essential physiological, biochemical, and cellular processes in plants. Plant cell microtubules (MTs) are particularly susceptible to Cr(VI) toxicity, with MAP65-1, a key microtubule-associated protein, playing a crucial role in stabilizing MTs by forming cross-bridges between them. The stability function of MAP65-1 is influenced by its phosphorylation status: phosphorylation causes MAP65-1 to detach from MTs during different cell cycle phases. This study investigated how Cr(VI) affects MAP65-1 presence on cortical MTs in Arabidopsis thaliana roots and hypocotyls. Seedlings expressing GFP:AtMAP65-1 and its non-phosphorylatable variant, AtMAP65-19A (GFP:AtMAP65-19A), were exposed to 100 μM potassium dichromate (K2Cr2O7, Cr(VI)) on ½ MS solid medium for 24 or 48 h. Confocal laser scanning microscopy (CLSM) revealed that Cr(VI) began impacting cortical MTs within 24 h. The signal intensity of GFP indicated a significant reduction in MAP65-1 presence, whereas the GFP:AtMAP65-19A signal remained stable and MTs were unaffected. These results suggest that Cr(VI) toxicity to MTs is linked to MAP65-1’s phosphorylation status.
Eosinophilic Myocarditis: A Concise Review
Authors: Asada Ashlee M. , Kahwash Rami , Trovato Vincenzo 
Published: January 2025

Abstract

Purpose of Review
Eosinophilic myocarditis (EM) is a rare and heterogeneous form of inflammatory heart disease that can present with a wide range of severity. Current literature is limited to case reports or small case series that outline the evaluation process, disease course, and the nonstandardized treatments trialed. This review aims to concisely summarize the current literature on EM including an update on maintenance therapy for refractory or recurrent disease.

Recent Findings
In the last several years, several observational studies have reported the clinical benefit of mepolizumab and benralizumab in refractory EM.

Summary
EM is a complex and heterogenous cause of inflammatory heart disease with a wide range of etiologies and presentations. Treatment of this disease has not been standardized as there are no large scale trials quantifying benefit of any specific therapy regimen. Targeted biologics show promise in observational studies; therefore, prospective studies are needed to quantify this benefit in EM.
Laaggeletterdheid en vragenlijsten: aanbevelingen van een participatief onderzoek met ervaringsdeskundigen
Authors: Mölenberg Famke J. M. , Kókai Lili L. 
Published: January 2025

Samenvatting
Voor onderzoek gebruiken we veelal gevalideerde vragenlijsten om gedrag en gezondheid onder de bevolking te meten. In Nederland zijn naar schatting 2,5 miljoen mensen van zestien jaar of ouder laaggeletterd, en velen van hen ervaren problemen bij het invullen van complexe vragenlijsten. Daardoor hebben we mogelijk niet goed in beeld hoe hun gezondheid is. Dit artikel beschrijft onze ervaringen met de samenwerking met ervaringsdeskundigen van Stichting Lezen en Schrijven voor het verbeteren van de SF-12-vragenlijst. Dit resulteerde in handvatten om vragenlijsten geschikter te maken voor mensen die laaggeletterd zijn.
Existing and emerging frameworks for the adoption and diffusion of medical devices and equipment in low-resource settings: a scoping review
Authors: Adlung Christopher , van der Kooij Nienke , Diehl Jan Carel , Hinrichs-Krapels Saba 
Published: January 2025

Abstract

Purpose
Properly functioning health systems globally require medical devices and equipment for vital care. Despite promising innovations, many medical devices face adoption barriers such as regulatory issues, interoperability and data exchange challenges. In low-resource settings, contextual factors influencing adoption and diffusion have not been synthesized into an overview to guide future medical device and equipment suppliers. Our study provides a scientific inventory of frameworks, theories, models, and guidelines describing the adoption and diffusion of medical devices and equipment in low-resource settings.

Methods
We searched both the PubMed and Scopus databases to identify studies within the health and broader non-health domains. Our search yielded 2.124 results after de-duplication. Extended attributes on the type of the paper, adoption and diffusion focus, medical devices and equipment use cases, and country settings revealed patterns of underpinning and emerging frameworks for adoption and diffusion.

Results
We included 28 studies in our review. The most researched device types were telemedicine, telehealth, m-health, and e-health. Among a larger variety, the most utilized underpinning frameworks were the Diffusion of Innovation Framework, and the Technology Acceptance Model. These frameworks led to the development of emerging models, such as a modified version based on Kifle’s Adoption Model or the Intervention-Context-Actors-Mechanism-Outcome Model.

Conclusions
Our findings offer initial insights for further research in identifying mechanisms for improving access to and utilization of medical devices and equipment in low-resource settings. Researchers can use this comprehensive review to guide continued research, addressing gaps in theoretical understanding and empirical evidence on medical device adoption and diffusion in low-resource settings.
Youth sport development experiences in Tyrol, Austria: a contextualized examination
Authors: Kogler Anna-Maria , Rich Kyle , Happ Elisabeth 
Published: January 2025

Abstract
Organized youth sport is seen as a setting for improving young people’s athletic abilities and enhancing their social and personal skills. However, sport development processes and outcomes are highly shaped by social, cultural, political, and economic contexts. The aim of this study was to examine youths’ experiences in organized sport and to explore the role of the socioeconomic and cultural contexts of golf and Tyrol (Austria) on these experiences. A case study methodology was applied to collect data from 18 golfers aged 10 to 20 from the Golf Team Tyrol, using the World Café method. Qualitative content analysis was employed to analyze the data. Our findings show participants’ awareness of the benefits of physical activity and their recognition of opportunities and constraints within the context of sport and physical activity. In addition, the findings demonstrate how young people utilize coping mechanisms to deal with difficult situations, which may vary in duration and intensity. Our research adds to the limited literature on sport development in Tyrol specifically, and Austria more broadly, by providing a comprehensive account of young people’s experiences in organized sport and how the sport, as well as social, cultural, and economic contexts, shape these experiences. Further, this research advances the use of participatory methods, such as the World Café, in youth sport to inform sport development research and practice. Our work demonstrates the potential value of centering participant experiences to understand sport development outcomes in robust and contextualized ways.