bluuebunny/crossref_metadata_2025_split huggingface dataset:
Exploring the plant lipidome: techniques, challenges, and prospects
Authors: Liu Hao-Zhuo , Li Yong-Kang , Chen Yi-Li , Zhou Ying , Sahu Sunil Kumar , Liu Ningjing , Wu Hao , Shui Guanghou , Chen Qinfang , Yao Nan 
Published: March 2024

AbstractPlant lipids are a diverse group of biomolecules that play essential roles in plant architecture, physiology, and signaling. To advance our understanding of plant biology and facilitate innovations in plant-based product development, we must have precise methods for the comprehensive analysis of plant lipids. Here, we present a comprehensive overview of current research investigating plant lipids, including their structures, metabolism, and functions. We explore major lipid classes, i.e. fatty acids, glyceroglycolipids, glycerophospholipids, sphingolipids, and phytosterols, and discuss their subcellular distributions. Furthermore, we emphasize the significance of lipidomics research techniques, particularly chromatography-mass spectrometry, for accurate lipid analysis. Special attention is given to lipids as crucial signal receptors and signaling molecules that influence plant growth and responses to environmental challenges. We address research challenges in lipidomics, such as in identifying and quantifying lipids, separating isomers, and avoiding batch effects and ion suppression. Finally, we delve into the practical applications of lipidomics, including its integration with other omics methodologies, lipid visualization, and innovative analytical approaches. This review thus provides valuable insights into the field of plant lipidomics and its potential contributions to plant biology.
Characterization of seismicity from different glacial bed types: machine learning classification of laboratory stick-slip acoustic emissions
Authors: Saltiel Seth , Groebner Nathan , Sawi Theresa , McCarthy Christine 
Published: March 2024

Abstract
Subglacial seismicity presents the opportunity to monitor inaccessible glacial beds at the epicentral location and time. Glaciers can be underlain by rock or till, a first order control on bed mechanics. Velocity-weakening, necessary for unstable slip, has been shown for each bed type, but is much stronger and evolves over more than an order of magnitude longer distances for till beds. Utilizing a de-stiffened double direct shear apparatus, we found conditions for instability at freezing temperatures and high slip rates for both bed types. During stick–slip stress-drops, we recorded acoustic emissions with piezoelectric transducers frozen into the ice. The two populations of event waveforms appear visually similar and overlap in their statistical features. We implemented a suite of supervised machine learning algorithms to classify the bed type of recorded waveforms and spectra, with prediction accuracy between 65–80%. The Random Forest Classifier is interpretable, showing the importance of initial oscillation peaks and higher frequency energy. Till beds have generally higher friction and resulting stress-drops, with more impulsive first arrivals and more high frequency content compared to rock emissions, but rock beds can produce many till-like events. Seismic signatures could enhance interpretation of bed conditions and mechanics from subglacial seismicity.
‘It’s more emotionally based’: Prince Edward Island horse owner perspectives of horse weight management
Authors: Ross Megan , Proudfoot Kathryn , Campbell Nishimura Eileen , Morabito Emily , Merkies Katrina , Mitchell Jean , Ritter Caroline 
Published: March 2024

AbstractHorse obesity is a growing concern that can result in negative welfare. The role horse owners play in horse weight management is not well understood. This study aimed to: (1) explore the attitudes, beliefs, and perceptions of owners with overweight or obese horses regarding their horses’ weight; and (2) understand the motivators and barriers for owners to implement, improve and maintain weight management-related strategies. A semi-structured interview guide based on the Theoretical Domains Framework was developed. Qualitative interviews were conducted with 24 owners in Prince Edward Island, Canada whose horse(s) were previously classified as overweight or obese by a veterinarian. Interviews were analysed using template analysis, organising patterns in the data into a codebook and overarching themes. Owners believed horse weight management was important, however, their perceived complexity of the issue made the implementation of the weight management practices difficult. Owners held conflicting perceptions, viewing overweight horses as well cared for, yet recognised these horses were at increased risk for negative health outcomes. Ultimately, participants felt emotionally torn about compromising their horse’s mental well-being to address weight issues. Owners considered the practicality of weight-management strategies, the strategies’ effectiveness, and whether recommended strategies aligned with their beliefs regarding good horse care practices. Knowledge was embedded into owners’ understanding of horse weight, however, some highlighted that traditional knowledge dominates the equine industry hindering systemic industry change. Increased understanding of the effectiveness and impacts of weight management strategies on horses and fostering a society that recognises and accepts horses within a healthy weight range are warranted.
Fictional Creationism and Negative Existentials
Authors: Lee Jeonggyu 
Published: March 2024

AbstractIn this paper, I defend fictional creationism, the view that fictional objects are abstract artifacts, from the objection that the apparent truth of fictional negative existentials, such as “Sherlock Holmes does not exist,” poses a serious problem for creationism. I develop a sophisticated version of the pragmatic approach by focusing on the inconsistent referential intentions of ordinary speakers: the upshot would be that creationism is no worse—perhaps even in a better position—than anti-realism, even if we restrict our linguistic data to fictional negative existentals.
Why cultural distance can promote – or impede – group-beneficial outcomes
Authors: Beheim Bret Alexander , Bell Adrian Viliami 
Published: March 2024

Abstract
Quantifying the distance between cultural groups has received substantial recent interest. A key innovation, borrowed from population genetics, is the calculation of cultural FST (CFST) statistics on datasets of human culture. Measuring the variance between groups as a fraction of total variance, FST is theoretically important in additive models of cooperation. Consistent with this, recent empirical work has confirmed that high values of pairwise CFST (measuring cultural distance) strongly predict unwillingness to cooperate with strangers in coordination vignettes. As applications for CFST increase, however, there is greater need to understand its meaning in naturalistic situations beyond additive cooperation. Focusing on games with both positive and negative frequency dependence and high-diversity, mixed equilibria, we derive a simple relationship between FST and the evolution of group-beneficial traits across a broad spectrum of social interactions. Contrary to standard assumptions, this model shows why FST can have both positive and negative marginal effects on the spread of group-beneficial traits under certain realistic conditions. These results provide broader theoretical direction for empirical applications of CFST in the evolutionary study of culture.
Occupational health and safety in aquaculture: Organisation of work and employment in small seaweed farms in North West Europe
Authors: Makri Eva , Walters David , Wadsworth Emma , Devereux Helen , van den Burg Sander W. K. 
Published: March 2024

AbstractThere is evidence that seaweed production can involve a variety of physical risks, but there has been little study of how wider contextual factors – such as enterprise size, economic and business relations, and forms of employment arrangements – may affect workers’ safety. This study explores the impact of such aspects on workers’ experiences of occupational safety and health (OSH) risks and their management in the developing seaweed industry, in North West Europe. Based on qualitative findings from a survey and discussions with owners/managers, workers and stakeholders in the industry, the study identified a number of issues relating to OSH in seaweed production. These include the predominance of micro small enterprises, the presence of significant risks to health and safety and limitations in the capacity of owners/managers to address them, as well as structural and economic factors in the sector that promote precarious work, and the low visibility and inaccessibility of micro and small enterprises (MSEs) to both public and private regulations. The paper discusses experiences of these issues in the emergent industry and relates them to the wider literature about work health and safety in micro and small firms and precarious and non-standard forms of work, typically found in agriculture and food production. Findings point to the need for better orchestration of public and private regulatory influences and further research to determine if strategies that are seen as successful in other sectors could be transferred to the emergent European seaweed industry.
A generalized hypothesis test for community structure in networks
Authors: Yanchenko Eric , Sengupta Srijan 
Published: March 2024

AbstractResearchers theorize that many real-world networks exhibit community structure where within-community edges are more likely than between-community edges. While numerous methods exist to cluster nodes into different communities, less work has addressed this question: given some network, does it exhibit statistically meaningful community structure? We answer this question in a principled manner by framing it as a statistical hypothesis test in terms of a general and model-agnostic community structure parameter. Leveraging this parameter, we propose a simple and interpretable test statistic used to formulate two separate hypothesis testing frameworks. The first is an asymptotic test against a baseline value of the parameter while the second tests against a baseline model using bootstrap-based thresholds. We prove theoretical properties of these tests and demonstrate how the proposed method yields rich insights into real-world datasets.
Do verbal and nonverbal declarative memory tasks in second language research measure the same abilities?
Authors: Hamrick Phillip , Was Christopher A. , Zhang Yin 
Published: March 2024

AbstractA growing body of evidence demonstrates that individual differences in declarative memory may be an important predictor of second language (L2) abilities. However, the evidence comes from studies using different declarative memory tasks that vary in their reliance on verbal abilities and task demands, which preclude estimating the size of the relationship between declarative memory and L2 learning. To address these concerns, we examined the relationship between verbal and nonverbal declarative memory abilities within the same task while controlling for task demands and stimulus modality, to estimate the upper bound of the relationship between verbal and nonverbal declarative memory. Results indicate that when task demands and stimulus modality are controlled, verbal and nonverbal declarative memory abilities shared a medium-to-large amount of underlying variance. However, future studies should exercise caution in appraising associations between declarative memory abilities and L2 learning until a more precise understanding of the underlying mechanisms is achieved.
‘The Thaw’ in the Arctic: constructing Mirny as a Soviet Arctic city of a new type
Authors: Kalemeneva Ekaterina 
Published: March 2024

Abstract
The town of Mirny, which was established in 1955 in the Arctic region of Yakutia, was not only the first Soviet settlement constructed near the newly explored diamond mine; it was also one of the first industrial towns in the Soviet Arctic to be constructed from scratch in the post-World War II period, as it was never part of the Gulag legacy. Focusing on the case of Mirny, this article elucidates the new principles behind the perception of urban space in the Soviet Arctic in the 1960s. Close analysis of the first years of the town’s construction illuminates the formation of a new conception of a socialist Arctic town at that period – a town open for migration flows, with a developed public and social sphere, that was celebrated as a ‘town of youth’ or a ‘town of the future’, and yet was also a town where extreme environmental conditions had a greater influence on the life of its inhabitants than did official state directives and regulations.
Constitutionalizing dissent: The universe of opposition rules in African constitutions
Authors: Schindler Danny 
Published: March 2024

Abstract
Constitutions are the most important legal foundation of politics. At the same time, the existence of a viable parliamentary opposition has been regarded one of the most distinctive characteristics of democracy. Bringing the two perspectives together, the principle of opposition can be constitutionalized to gain the highest status. Importantly, we refer to norms recognizing the opposition as such. Such counter-majoritarian rules are distinct because they empower opposition forces irrespective of their seat share and explicitly acknowledge that power should not be monopolized. While our subject has attracted little interest from comparative constitutionalists, it is too important to be overlooked. This is particularly true for autocratizing regimes where incumbents seek to use legislative lawfare to repress their opponents. Empirically, the study focuses on Africa, which proves revealing for various reasons. Among others, it addresses the critique that constitutional law studies often concentrate on usual suspect cases used to reveal purportedly universal insights. Our exercise in comparative constitutional law leads to two main conclusions that go beyond the continent. First, while we find a high number of opposition-related rules, the variation in design details and scope suggests that referring to the principle of opposition in an abstract manner is somewhat obscuring. And second, the obvious virtues of constitutionalizing dissent face noteworthy pitfalls since pertinent rules can lack legal clarity and even suppress dissent. Hence, the dividends of nominally democratic rules might be smaller than expected even if constitutional designers sincerely intend to fully uphold them in practice.
The Intersections of Public Rights and Private Rules: An Analysis of Human Rights in Forestry and Fisheries Certification Standards
Authors: Jodoin Sébastien , Johnson Kasia 
Published: March 2024

AbstractThis article systematically evaluates whether, how, and to what extent twelve prominent forestry and fisheries certification schemes address human rights in their standards. In line with the broader cross-fertilization of the fields of international human rights and environmental law and policy, our results demonstrate that human rights norms and considerations – primarily Indigenous, labour, and procedural rights – are increasingly reflected in the rulemaking of these schemes. At the same time, our analysis also demonstrates the mixed and underwhelming performance of certification standards in protecting human rights norms, including those relating to women, children, racialized and ethnic minorities, persons with disabilities, Indigenous peoples, workers, 2SLGBTQIA+ communities, and peasants and rural peoples. Through descriptive statistics, we also show that levels of human rights adherence vary significantly across schemes and that standards developed in the forestry sector tend to outperform those for fisheries. Our methodology and results add a new dimension to efforts to assess the stringency, equity, and legitimacy of private authority in the environmental field.
Nonresonant Scattering of Energetic Electrons by Electromagnetic Ion Cyclotron Waves: Spacecraft Observations and Theoretical Framework
Authors: An Xin , Artemyev Anton , Angelopoulos Vassilis , Zhang Xiao‐Jia , Mourenas Didier , Bortnik Jacob , Shi Xiaofei 
Published: March 2024

AbstractElectromagnetic ion cyclotron (EMIC) waves lead to rapid scattering of relativistic electrons in Earth's radiation belts, due to their large amplitudes relative to other waves that interact with electrons of this energy range. A central feature of electron precipitation driven by EMIC waves is deeply elusive. That is, moderate precipitating fluxes at energies below the minimum resonance energy of EMIC waves occur concurrently with strong precipitating fluxes at resonance energies in low‐altitude spacecraft observations. This paper expands on a previously reported solution to this problem: nonresonant scattering due to wave packets. The quasi‐linear diffusion model is generalized to incorporate nonresonant scattering by a generic wave shape. The diffusion rate decays exponentially away from the resonance, where shorter packets lower decay rates and thus widen the energy range of significant scattering. Using realistic EMIC wave packets from δf particle‐in‐cell simulations, test particle simulations are performed to demonstrate that intense, short packets extend the energy of significant scattering well below the minimum resonance energy, consistent with our theoretical prediction. Finally, the calculated precipitating‐to‐trapped flux ratio of relativistic electrons is compared to ELFIN observations, and the wave power spectra is inferred based on the measured flux ratio. We demonstrate that even with a narrow wave spectrum, short EMIC wave packets can provide moderately intense precipitating fluxes well below the minimum resonance energy.
Key Factors Determining Nightside Energetic Electron Losses Driven by Whistler‐Mode Waves
Authors: Tsai Ethan , Artemyev Anton , Ma Qianli , Mourenas Didier , Agapitov Oleksiy , Zhang Xiao‐Jia , Angelopoulos Vassilis 
Published: March 2024

AbstractEnergetic electron losses by pitch‐angle scattering and precipitation to the atmosphere from the radiation belts are controlled, to a great extent, by resonant wave particle interactions with whistler‐mode waves. The efficacy of such precipitation is primarily modulated by wave intensity, although its relative importance, compared to other wave and plasma parameters, remains unclear. Precipitation spectra from the low‐altitude, polar‐orbiting ELFIN mission have previously been demonstrated to be consistent with energetic precipitation modeling derived from empirical models of field‐aligned wave power across a wide swath of local‐time sectors. However, such modeling could not explain the intense, relativistic electron precipitation observed on the nightside. Therefore, this study aims to additionally consider the contributions of three modifications—wave obliquity, frequency spectrum, and local plasma density—to explain this discrepancy on the nightside. By incorporating these effects into both test particle simulations and quasi‐linear diffusion modeling, we find that realistic implementations of each individual modification result in only slight changes to the electron precipitation spectrum. However, these modifications, when combined, enable more accurate modeling of ELFIN‐observed spectra. In particular, a significant reduction in plasma density enables lower frequency waves, oblique, or even quasi field‐aligned waves to resonate with near ∼1 MeV electrons closer to the equator. We demonstrate that the levels of modification required to accurately reproduce the nightside spectra of whistler‐mode wave‐driven relativistic electron precipitation match empirical expectations and should therefore be included in future radiation belt modeling.
Characterizing Precipitation and Improving Rainfall Estimates Over the Southern Ocean Using Ship‐Borne Disdrometer and Dual‐Polarimetric C‐Band Radar
Authors: Aragon L. G. B. , Huang Y. , May P. T. , Crosier J. , Montoya Duque E. , Connolly P. J. , Bower K. N. 
Published: March 2024

AbstractLarge satellite discrepancies and model biases in representing precipitation over the Southern Ocean (SO) are related directly to the region's limited surface observations of precipitation. To help address this knowledge gap, the study investigated the precipitation characteristics and rain rate retrievals over the remote SO using ship‐borne data of the Ocean Rainfall And Ice‐phase precipitation measurement Network disdrometer (OceanRAIN) and dual‐polarimetric C‐band radar (OceanPOL) aboard the Research Vessel (RV) Investigator in the Austral warm seasons of 2016–2018. Seven distinct synoptic types over the SO were analyzed based on their radar polarimetric signatures, surface precipitation phase, and rain microphysical properties. OceanRAIN observations revealed that the SO precipitation was dominated by drizzle and light rain, with small‐sized raindrops (diameter <1 mm) constituting up to 47% of total accumulation. Precipitation occurred most frequently over the warm sector of extratropical cyclones, while concentrations of large‐sized raindrops (diameter >3 mm) were prominent over synoptic types with colder and more convectively unstable environments. OceanPOL observations complement and extend the surface precipitation properties sampled by OceanRAIN, providing unique information to help characterize the variety of potential precipitation types and associated mechanisms under different synoptic conditions. Raindrop size distributions (DSD) measured with OceanRAIN over the SO were better characterized by analytical DSD forms with two‐shape parameters than single‐shape parameters currently implemented in satellite retrieval algorithms. This study also revised a rainfall retrieval algorithm for C‐band radars to reflect the large amount of small drops and provide improved radar rainfall estimates over the SO.
HBB contributes to individualized aconitine-induced cardiotoxicity in mice via interfering with ABHD5/AMPK/HDAC4 axis
Authors: Guo Ya-juan , Yao Jing-jing , Guo Zhen-zhen , Ding Ming , Zhang Kun-lin , Shen Qing-hong , Li Yu , Yu Shao-fang , Wan Ting , Xu Fu-ping , Wang Ying , Qi Xiao-xiao , Wu Jin-jun , Chen Jian-xin , Liu Zhong-qiu , Lu Lin-lin 
Published: March 2024

AbstractThe root of Aconitum carmichaelii Debx. (Fuzi) is an herbal medicine used in China that exerts significant efficacy in rescuing patients from severe diseases. A key toxic compound in Fuzi, aconitine (AC), could trigger unpredictable cardiotoxicities with high-individualization, thus hinders safe application of Fuzi. In this study we investigated the individual differences of AC-induced cardiotoxicities, the biomarkers and underlying mechanisms. Diversity Outbred (DO) mice were used as a genetically heterogeneous model for mimicking individualization clinically. The mice were orally administered AC (0.3, 0.6, 0.9 mg· kg−1 ·d−1) for 7 d. We found that AC-triggered cardiotoxicities in DO mice shared similar characteristics to those observed in clinic patients. Most importantly, significant individual differences were found in DO mice (variation coefficients: 34.08%–53.17%). RNA-sequencing in AC-tolerant and AC-sensitive mice revealed that hemoglobin subunit beta (HBB), a toxic-responsive protein in blood with 89% homology to human, was specifically enriched in AC-sensitive mice. Moreover, we found that HBB overexpression could significantly exacerbate AC-induced cardiotoxicity while HBB knockdown markedly attenuated cell death of cardiomyocytes. We revealed that AC could trigger hemolysis, and specifically bind to HBB in cell-free hemoglobin (cf-Hb), which could excessively promote NO scavenge and decrease cardioprotective S-nitrosylation. Meanwhile, AC bound to HBB enhanced the binding of HBB to ABHD5 and AMPK, which correspondingly decreased HDAC-NT generation and led to cardiomyocytes death. This study not only demonstrates HBB achievement a novel target of AC in blood, but provides the first clue for HBB as a novel biomarker in determining the individual differences of Fuzi-triggered cardiotoxicity.