bluuebunny/crossref_metadata_2025_split huggingface dataset:
Population divergence manifested by genomic rearrangements in a keystone Arctic species with high gene flow
Authors: Hoff Siv N.K , Maurstad Marius F. , Le Moan Alan , Ravinet Mark , Pampoulie Christophe , Vieweg Ireen , Collard France , Moiseev Denis , Bradbury Ian R. , Tørresen Ole K. , Godiksen Jane Aanestad , Hop Haakon , Renaud Paul E. , Nahrgang Jasmine , Jakobsen Kjetill S. , Præbel Kim , Durant Joël M. , Jentoft Sissel 
Published: June 2024

AbstractGenomic rearrangements have in recent years gained attention due to their evolutionary role in processes related to adaptation to local environmental conditions as well as diversification and speciation. In this study, we report on genomic rearrangements in the cold-water adapted polar cod (Boreogadus saida), a keystone Arctic fish species. By taking advantage of a new chromosome-level genome assembly in combination with whole-genome population sequencing data from specimens across the northern Barents Sea and adjacent regions, we identified a substantial number of larger chromosomal inversions (n=20) and characterized the previously identified chromosomal fusions (n=5). These genomic features — encompassing over 20% of the genome — exhibited genetic divergence, strong internal linkage disequilibrium, and signals of selection. Two of the identified inversions were associated with the two previously described hemoglobin clusters, while a third chromosomal region was found to differentiate between males and females. Moreover, clustering analyses on genotype frequencies of inversions revealed sub- structuring according to five geographic sub-groups suggesting sub-populations and/or the existence of cryptic ecotypes. These results provide novel insights into the impact of genomic rearrangements in population divergence and thus, potentially local adaptation, especially in species with high gene flow.
Molecular evolution of the meiotic recombination pathway in vertebrates
Authors: Szasz-Green Taylor , Shores Katherynne , Vanga Vineel , Zacharias Luke , Lawton Andrew K. , Dapper Amy L. 
Published: June 2024

AbstractMeiotic recombination is an integral cellular process, required for the production of viable gametes, and the rate at which it occurs is a fundamental genomic parameter, modulating how the genome responds to selection. Our increasingly detailed understanding of its molecular underpinnings raises the prospect that we can gain insight into trait divergence by examining the molecular evolution of recombination genes from a pathway perspective, as in mammals, where protein-coding changes in the later stages of the recombination pathway are connected to divergence in intra-clade recombination rate. Here, we leveraged increasing availability of avian and teleost genomes to reconstruct the evolution of the recombination pathway across two additional vertebrate clades: birds, which have higher and more variable rates of recombination and similar divergence times to mammals; and teleost fish, which have much deeper divergence times. We found that the rates of molecular evolution of recombination genes are highly correlated between vertebrate clades, suggesting that they experience similar selective pressures. However, recombination genes in birds were significantly more likely to exhibit signatures of positive selection, unrestricted to later stages of the pathway. There is a significant correlation between genes linked to recombination rate variation in mammalian populations and those with signatures of positive selection across the avian phylogeny, suggesting a link between selection and recombination rate. In contrast, the teleost fish recombination pathway is more highly conserved with significantly less evidence of positive selection. This is surprising given the high variability of recombination rates in this clade.
Reference genome bias in light of species-specific chromosomal reorganization and translocations
Authors: Maurstad Marius F. , Hoff Siv Nam Khang , Cerca José , Ravinet Mark , Bradbury Ian , Jakobsen Kjetill S. , Præbel Kim , Jentoft Sissel 
Published: June 2024

SummaryWhole-genome sequencing efforts has during the past decade unveiled the central role of genomic rearrangements—such as chromosomal inversions—in evolutionary processes, including local adaptation in a wide range of taxa. However, employment of reference genomes from distantly or even closely related species for mapping and the subsequent variant calling, can lead to errors and/or biases in the datasets generated for downstream analyses. Here, we capitalize on the recently generated chromosome-anchored genome assemblies for Arctic cod (Arctogadus glacialis), polar cod (Boreogadus saida), and Atlantic cod (Gadus morhua) to evaluate the extent and consequences of reference bias on population sequencing datasets (approx. 15-20x coverage) for both Arctic cod and polar cod. Our findings demonstrate that the choice of reference genome impacts population genetic statistics, including individual mapping depth, heterozygosity levels, and cross-species comparisons of nucleotide diversity (π) and genetic divergence (DXY). Further, it became evident that using a more distantly related reference genome can lead to inaccurate detection and characterization of chromosomal inversions, i.e., in terms of size (length) and location (position), due to inter-chromosomal reorganizations between species. Additionally, we observe that several of the detected species-specific inversions were split into multiple genomic regions when mapped towards a heterospecific reference. Inaccurate identification of chromosomal rearrangements as well as biased population genetic measures could potentially lead to erroneous interpretation of species-specific genomic diversity, impede the resolution of local adaptation, and thus, impact predictions of their genomic potential to respond to climatic and other environmental perturbations.
Beam physics studies for a high charge and high beam quality laser-plasma accelerator
Authors: Marini Samuel , Minenna Damien F. G. , Massimo Francesco , Batista Laury , Bencini Vittorio , Chancé Antoine , Chauvin Nicolas , Doebert Steffen , Farmer John , Gschwendtner Edda , Moulanier Ioaquin , Muggli Patric , Uriot Didier , Cros Brigitte , Nghiem Phu Anh Phi 
Published: June 2024

Electron acceleration by laser-plasma techniques is approaching maturity and is getting ready for the construction of particle accelerators with dedicated applications. We present a general methodology showing how beam physics studies can be used to achieve a specific parameter set in a laser-plasma accelerator. Laser systems, plasma targets, and magnetic component properties are designed to optimize the electron beam so as to achieve the required performances. Beam physics in its full 6D phase space is studied from electron injection to beam delivery to the end user, through the plasma acceleration stage and transport line. As each beam parameter can only be modified by specific electric/magnetic field configurations, it is crucial to assign from the beginning specific roles to given accelerator sections in obtaining given beam parameters. These beam physics considerations were successfully applied to the design of a plasma-based electron injector for the AWAKE Run2 experiment. Electron beam parameters were calculated using a global simulation, achieving simultaneously unprecedented high charge (100 pC) and high quality (micrometric beam emittance and size).

Published by the American Physical Society
2024
The making of a multiplicity of overlapping controls
Authors: Berland Nicolas , Curtis Emer , Guenoun Marcel , Renaud Angèle 
Published: June 2024

PurposeThis study aims to examine the question “How can we understand the dynamics that give rise to multiplicities of overlapping controls (MoOCs)?” and explore the role of local politics in the emergence of such multiplicities.Design/methodology/approachBuilding on assemblage theory, we use an in-depth case study of local government in France where a Socialist and Green coalition (the “Coalition”) replaced a long-standing Communist administration. The Coalition introduced a comprehensive set of new management control systems (MCSs), layered onto pre-existing systems.FindingsThe proliferation of new MCSs, together with the persistence of legacy MCSs, gave rise to a MoOC. Linkages between controls constituted potential points of rupture around which the assemblage changed and shifted the nexus of control. Whereas densely populated areas of the assemblage provided sites for conflict in the battle to influence the allocation of resources, some MCSs became isolated or were reterritorialized by political groups seeking autonomy from the new management.Social implicationsWe highlight the material consequences of political contentions around MoOCs that obfuscate, and at times frustrate, the implementation of a programme for government.Originality/valueWe contribute a set of concepts pertaining to the dynamics of MoOCs. We offer an alternative perspective on the disappointment associated with the adoption of new management tools in the public sector, showing how MCSs can become battlegrounds for political contention rather than tools for management improvement. We contribute to literature utilizing assemblage theory for analysing management accounting change.
The luxury should be “high”: the effect of positioning in cobranding on luxury evaluation
Authors: Nie Xinyu , Wang Liangyan , Chan Eugene Y. 
Published: June 2024

PurposeThis study examines how the visual cues (i.e. positioning in cobranding advertising) influence the luxury evaluation.Design/methodology/approachThrough four experiments in different contexts, this study investigates the effects of the positioning of two brands in cobranding on luxury evaluation, the moderating role of product category and the mediating role of benefit understanding.FindingsThis study finds that the positioning of two brands in cobranding affects luxury evaluation. Specifically, vertical positioning benefits consumers’ attitude toward luxury compared with horizontal positioning. Results also elucidate that such an effect depends on the product category; that is, the effect of positioning on luxury only exists when the cobranded product belongs to the core (vs non-core) category of luxury. The benefit understanding explains the effects of the positioning and product category on the luxury attitude.Research limitations/implicationsThis study contributes to the literature on luxury and cobranding by exploring the visual cues at the marketing communication level influencing the evaluation of luxury brands.Practical implicationsThe findings provide important managerial guidelines for enhancing luxury cobranding effectiveness.Originality/valueThis study proposes positioning in cobranding advertisements as one of the antecedents affecting luxury cobranding evaluation. Accordingly, this study adopts a new perspective on visual perception, based on conceptual metaphor theory, which advances the theoretical and empirical knowledge of luxury cobranding.
Linking formal institutional distance, subsidiary autonomy for innovation and subsidiary global (value-added) mandates
Authors: Raziq Muhammad Mustafa , Saleem Sharjeel , Sumbal Muhammad Saleem Ullah Khan , Ikramullah Malik 
Published: June 2024

PurposeThis study examines the effects of formal institutional distance (ID) on the foreign subsidiary global mandates (i.e. the subsidiary value-added role in terms of research and development (R&D), product management and supplying of inputs to the multinational enterprise (MNE) globally). Furthermore, it examines the mediating role of subsidiary autonomy for innovation in the relationship between formal ID and subsidiary global mandates.Design/methodology/approachSurvey evidence from foreign subsidiaries in a remote developed economy, i.e. New Zealand, is obtained. Formal distance is measured based on the worldwide governance indicators (WGI), and the hypotheses are tested using structural equation modeling.FindingsResults show that the direct link between formal ID and subsidiary global mandates is negative. However, autonomy for innovation as a mediator offsets this negative relationship, showing a positive mediating effect between formal ID and subsidiary global mandates.Originality/valueThis study extends research on foreign subsidiaries and their value-added roles in the MNE. We show the differentiated role of formal ID and indicate a contingency showing how the negative influence of formal ID on subsidiary global mandates can be offset. The inconsistent mediation of autonomy for innovation suggests that the concept of ID is multifaceted and complex, in contrast to the popular view that ID has only negative implications. Drawing upon evidence from a remote, developed economy and secondary data sources, we suggest how MNEs may positively use their formal ID with their subsidiaries.
Accelerating start-ups' leap to unicorns: the role of founders' ambidextrous orientation
Authors: Jha Vivek Kumar , Roshan Ravi , Sinha Sabyasachi 
Published: June 2024

PurposeExtant studies in entrepreneurship have explored factors that influence the birth and growth of start-up firms; however, there appears to be a dearth of studies examining the influence of founders' ambidextrous orientation on start-ups' success, especially their speed of attaining the coveted status of a “unicorn start-up” – which is considered a mega success in practice. This study examines whether and how founding teams’ collective ambidextrous orientation influences their respective start-ups’ pace of becoming a “unicorn”.Design/methodology/approachThis study empirically analyses 220 interviews by the founders of 83 Indian unicorns in examining the influence of the founding teams’ collective exploration-exploitation capability on their firms' speed to achieve the “unicorn” status. The Cox Hazard model was used to test the hypothesized relationships, and linear ordinary least squares (OLS) regression was used to test the robustness of the results.FindingsThe authors find a strong positive relationship between founding teams’ ambidextrous skills and the speed of becoming a unicorn. The study results suggest that the founding teams’ collective exploratory skills may be more influential in their start-up’s speed to unicorn status vis-à-vis their exploitative skills.Originality/valueThis study finds that the founding teams’ ambidextrous orientation and exploratory skills accelerate their start-up’s speed to becoming a unicorn, contributing to the academic discourse on the “unicorn” phenomenon, which is widely acknowledged as a grand success status for start-ups—especially technology and venture capital funded start-ups—among the practitioners. This study contributes to the academic discourse on firm capabilities and founding-team-related antecedents of start-up success by raising a new dimension of the founding team’s ambidextrous orientation.
Performance management in action: a configurational analysis of the drivers of the purposeful use of performance information
Authors: Vidè Francesco , Cepiku Denita , Mastrodascio Marco 
Published: June 2024

PurposeThe article explores which configurations of organizational and individual conditions support the purposeful use of performance information in the public sector. Prior research has predominantly focused on the effects of individual factors without paying as much attention to how these factors interact to influence public managers’ attitudes to integrating performance information into their decision-making.Design/methodology/approachThe study employs a fuzzy-set qualitative comparative analysis (fs-QCA) to examine the different combinations of organizational and individual drivers that facilitate purposeful performance information use.FindingsGoal clarity is a necessary but insufficient condition for purposeful information use. It needs to be complemented by a mature performance management system, public managers with prosocial motivation who engage in extra-role behaviours within a non-innovative organizational culture, or a developmental culture that motivates managers who are unaware of the social impact generated by their work.Research limitations/implicationsThe case selection does not allow for direct generalizations. Future studies could replicate the configurational analysis in different countries and sectors and introduce additional environmental, organizational, and individual conditions.Practical implicationsThe study suggests the need to integrate actions that support the purposeful use of performance information and define clear departmental goals. Although the latter is a necessary condition, it needs to be supported by other organizational and individual factors.Originality/valueThe study deepens the theory of the drivers of purposeful performance information use in the public sector by adopting a configurational approach and exploring how organizational and individual conditions interact to foster information use.
Opportunistic and delayed maintenance as strategies for sustainable maintenance practices
Authors: Patra Pradipta , Dinesh Kumar Unni Krishnan 
Published: June 2024

PurposeOpportunistic and delayed maintenances are increasingly becoming important strategies for sustainable maintenance practices since they increase the lifetime of complex systems like aircrafts and heavy equipment. The objective of the current study is to quantify the optimal time window for adopting these strategies.Design/methodology/approachThe current study considers the trade-offs between different costs involved in the opportunistic and delayed maintenances (of equipment) like the fixed cost of scheduled maintenances, the opportunistic rewards that may be earned and the cost of premature parts replacement. The probability of the opportunistic maintenance has been quantified under two different scenarios – Mission Reliability and Renewal Process. In the case of delayed maintenance, the cost of the delayed maintenance is also considered. The study uses optimization techniques to find the optimal maintenance time windows and also derive useful insights.FindingsApart from finding the optimal time window for the maintenance activities the study also shows that opportunistic maintenance is beneficial provided the opportunistic reward is significantly large; the cost of conducting scheduled maintenance in the pre-determined slot is significantly large. Similarly, the opportunistic maintenance may not be beneficial if the pre-mature equipment parts replacement cost is significantly high. The optimal opportunistic maintenance time is increasing function of Weibull failure rate parameter “beta” and decreasing function of Weibull failure rate parameter “theta.” In the case of optimal delayed maintenance time, these relationships reverse.Originality/valueTo the best of our knowledge, very few studies exist that have used mission reliability to study opportunistic maintenance or considered the different cost trade-offs comprehensively.
Dynamic and stability analysis of crescent geometry-possessing textured journal bearing using nanolubricant
Authors: Byotra Deepak , Sharma Sanjay 
Published: June 2024

Purpose
This study aims to find the dynamic performance parameters of the journal bearing with micro geometries patterning the arc (crescent) shape textures provided in three specific regions of the journal bearing: the full, the second half and the increasing pressure region. The dynamic behavior of textured journal bearings has been analyzed by computing dynamic parameters and linear and non-linear trajectories.

Design/methodology/approach
The lubricant flows between the bearing and journal surface are governed by Reynold’s equation, which has been solved by finite the element method. The dynamic performance parameters such as stiffness, damping, threshold speed, critical mass and whirl frequency ratio are examined under various operating conditions by considering various ranges of eccentricity ratios and texture depths. Linear and non-linear equations of motion have been solved with Ranga–Kutta method to get journal motion trajectories. Also, the impact of adding aluminum oxide and copper oxide nanoparticles to the base lubricant in combination with arc-shaped textures is analyzed to further see any enhancement in the performance parameters.

Findings
The findings demonstrated that direct stiffness and damping parameters increased to their maximum level with six textures in the pressure-increasing region when compared with the untextured surface. Also, nanoparticle additives showed improvements above the highest value attained with no inclusion of additives in the same region or quantity of textures.

Originality/value
Engineers may design bearings with improved stability and overall performance if they understand how texture form impacts dynamic properties.
Shari’ah governance and transparency: evidence from stock price synchronicity of Islamic banks
Authors: Quttainah Majdi Anwar , BenSaid Yosra 
Published: June 2024

Purpose
The purpose of this study is to investigate internal governance mechanisms factors, focusing on Shari’ah-based governance mechanisms that affect the price synchronicity of Islamic banks (IBs).

Design/methodology/approach
This study analyzes and compares the effect of Shari’ah and regular governance mechanisms on stock price synchronicity over 2013–2022 using a sample of 51 listed IBs in 13 countries in the Middle East and South Asia region. Using generalized least square method, this paper tests nine hypotheses addressing Shari’ah and regular governance mechanisms.

Findings
The findings generally reveal that Shari’ah-based governance mechanisms have a significant impact on the stock price synchronicity of IBs. The main determinants of stock price synchronicity among IBs are SSB size, SSB diversity, SSB members’ qualifications in finance Islamic jurisprudence and SSB interlocks. Shari’ah governance plays a detrimental role in improving the association between bank stock price synchronicity and transparency.

Research limitations/implications
This paper includes three main limitations that may affect the accuracy of the findings. First, this paper relied on publicly available financial statements of IBs online. Hence, the data in this study is from few IBs in each country, which limits the analysis given the reliance is on the best-performing IBs in the country. Second, the results are restricted to the Middle East and South Asia and may not be generalized to other regions. Third, the sample is dominated by Middle East countries (i.e. 37 IBs out of 51).

Practical implications
Both Shari’ah governance and regular governance have an impact on the transparency of IBs. Policymakers or regulators could encourage IBs to embed SSBs into their internal governance structure for the positive impact the SSBs attributes have on stock price synchronicity and transparency.

Originality/value
This research studies IBs, unlike most other works that focus on firms.