bluuebunny/crossref_metadata_2025_split huggingface dataset:
Self-learning for translational control of elliptical orbit spacecraft formations
Authors: Lu Weijia , Zhang Chengxi , Liu Fei , Wu Jin , Wang Jihe , Tan Lining 
Published: July 2024

Purpose
This paper aims to investigate the relative translational control for multiple spacecraft formation flying. This paper proposes an engineering-friendly, structurally simple, fast and model-free control algorithm.

Design/methodology/approach
This paper proposes a tanh-type self-learning control (SLC) approach with variable learning intensity (VLI) to guarantee global convergence of the tracking error. This control algorithm utilizes the controller's previous control information in addition to the current system state information and avoids complicating the control structure.

Findings
The proposed approach is model-free and can obtain the control law without accurate modeling of the spacecraft formation dynamics. The tanh function can tune the magnitude of the learning intensity to reduce the control saturation behavior when the tracking error is large.

Practical implications
This algorithm is model-free, robust to perturbations such as disturbances and system uncertainties, and has a simple structure that is very conducive to engineering applications.

Originality/value
This paper verified the control performance of the proposed algorithm for spacecraft formation in the presence of disturbances by simulation and achieved high steady-state accuracy and response speed over comparisons.
Automatic identification of macroscopic constitutive parameters for polycrystalline materials based on computational homogenisation
Authors: Fonseca Gonçalves Guilherme , Cardoso Coelho Rui Pedro , Rodrigues Lopes Igor André 
Published: July 2024

PurposeThe purpose of this research is to establish a robust numerical framework for the calibration of macroscopic constitutive parameters, based on the analysis of polycrystalline RVEs with computational homogenisation.Design/methodology/approachThis framework is composed of four building-blocks: (1) the multi-scale model, consisting of polycrystalline RVEs, where the grains are modelled with anisotropic crystal plasticity, and computational homogenisation to link the scales, (2) a set of loading cases to generate the reference responses, (3) the von Mises elasto-plastic model to be calibrated, and (4) the optimisation algorithms to solve the inverse identification problem. Several optimisation algorithms are assessed through a reference identification problem. Thereafter, different calibration strategies are tested. The accuracy of the calibrated models is evaluated by comparing their results against an FE2 model and experimental data.FindingsIn the initial tests, the LIPO optimiser performs the best. Good results accuracy is obtained with the calibrated constitutive models. The computing time needed by the FE2 simulations is 5 orders of magnitude larger, compared to the standard macroscopic simulations, demonstrating how this framework is suitable to obtain efficient micro-mechanics-informed constitutive models.Originality/valueThis contribution proposes a numerical framework, based on FE2 and macro-scale single element simulations, where the calibration of constitutive laws is informed by multi-scale analysis. The most efficient combination of optimisation algorithm and definition of the objective function is studied, and the robustness of the proposed approach is demonstrated by validation with both numerical and experimental data.
The only daughters effect: examining the relationship between child gender and a CEO’s hiring decisions
Authors: Flores Gabriela , Garcia M. Fernanda , Nguyen Hazel , Triana María del Carmen , Choirat Christine 
Published: July 2024

PurposeThis study investigates the relationship between child gender and a CEO’s top management hiring decisions.Design/methodology/approachHypotheses were tested using secondary data on 121 S&P 500 male CEOs, their children, and their top management teams.FindingsResults indicate that child gender is associated with a male CEO’s TMT hiring decisions. Specifically, we find that male CEOs with only daughters were significantly more likely to hire women to their TMTs than male CEOs with only sons and those with both sons and daughters.Practical implicationsThis study provides evidence for the roles of familiarity, learning, and empathy in reducing gender biases in selection decisions. Top management hiring decisions have wide implications for organizational settings in general and for the breaking of the glass ceiling in particular.Social implicationsReducing gender bias in top manager hiring decisions directly relates to the United Nations’ Sustainable Development Goal 5 of achieving gender equality as women are consistently under-represented at the top of organizations across the world.Originality/valueBy focusing on the hiring of top managers, this study includes hiring decisions that directly impact firm operations. To our knowledge, this is the first study to examine the relationship between child gender and executive hiring decisions with a US S&P 500 sample.
Impact of values on the continual intention of mobile health apps: a text mining perspective
Authors: Niduthavolu Saikiran , Airani Rajeev 
Published: July 2024

Purpose
This study aims to examine values derived from apps and their relationship with continual intention using reviews from the Google Play Store.

Design/methodology/approach
This paper delves deep into the determinants of mobile health apps’ (MHAs) value offering (functional, social, epistemic, conditional and hedonic value) using automatic content analysis and text mining of user reviews. This paper obtained data from a sample of 45,019 MHA users who have posted reviews on the Google Play Store. This paper analyzed the data using text mining, ACA and regression techniques.

Findings
The findings show that values moderate the relationship between review length and ratings. This paper found that the higher the length, the lower the ratings and vice versa. This paper also demonstrated that the novelty and perceived reliability of the app are the two most essential constructs that drive user ratings of MHAs.

Originality/value
This is one of the first studies, to the best of the authors’ knowledge, that derives values (functional, social, epistemic, conditional and hedonic value) using text mining and explores the relationship with user ratings.
Mapping the fintech revolution: how technology is transforming credit risk management
Authors: Nobanee Haitham , Ellili Nejla Ould Daoud , Chakraborty Dipanwita , Shanti Hiba Zaki 
Published: July 2024

Purpose
This study aims to investigate the intersection of financial technology (fintech) and credit risk exploring the impact of fintech on credit risk within the banking and financial sector.

Design/methodology/approach
Using a bibliometric analysis approach, this study comprehensively reviews existing literature to understand the evolving landscape of fintech and credit risk. Data were extracted from the Scopus database using a comprehensive query encompassing various fintech-related keywords and their synonyms.

Findings
This study pinpoints six research streams on fintech and credit risk, spanning credit risk management, risk-sharing, credit scoring, regulatory challenges, small business lending impact and consumer credit market influence. It also examines recent advancements like artificial intelligence, blockchain and big data analytics in managing risk obligations.

Research limitations/implications
While this study offers a comprehensive assessment, limitations include the ever-evolving nature of technology and potential biases in the retrieval process. Researchers should consider these factors when building on this study's findings.

Practical implications
The findings have practical implications for financial institutions, policymakers and researchers, offering insights into the opportunities and challenges presented by fintech in credit risk management. This study highlights potential areas for the application of advanced technologies in risk assessment and mitigation.

Social implications
This study underscores the transformative impact of fintech on financial services, emphasizing the potential for more inclusive access and improved risk management. It encourages further exploration of fintech's societal implications, including its role in small business lending and consumer credit markets.

Originality/value
This study contributes to the existing body of knowledge by conducting a thorough bibliometric review, surpassing previous analyses in scope. It encompasses an extensive set of keywords to ensure the comprehensive retrieval of relevant papers, providing a foundation for future research in the dynamic field of fintech and credit risk.
Evidence of stretching/moving sheet-triggered nonlinear similarity flows: atomization and electrospinning with/without air resistance
Authors: Turkyilmazoglu Mustafa 
Published: July 2024

Purpose
The purpose of this study is two-fold. First, it aims to differentiate the response of a stretching jet encountering a quadratic air resistance from the classical jet shape formed in a frictionless medium. Second, it investigates how the resulting jet forms with and without air resistance, seeking evidence that supports the similarity flows frequently studied for stretching/moving thin bodies under the boundary layer approximation.

Design/methodology/approach
This study extends the established electrohydrodynamic stretching jet theory, used to model electrospinning or jet printing in the absence of air resistance, to encompass the impact of the retarding force on the jet stretching in both the cone and final regimes before it impinges on a substrate.

Findings
A close examination of the nonlinear governing equations reveals that the jet rapidly thins near the nozzle because of the combined action of viscous and electrical forces. In this region, the exponentially decaying jet receives further support from the air resistance, resulting in a closer alignment with the observed experimental jet. This exponential decay, accelerated by the inversely quadratic speed of the liquid particles, serves as clear evidence for the existence of a similarity flow over an exponentially stretching sheet. Furthermore, in the final regime, the jet stretching exhibits an algebraic decay in the absence of air friction, while with air resistance, it decays exponentially to reach a limiting speed. In the former case, a square root dependence of the stretching jet speed leads to the emergence of a similarity flow over a thin stretching jet, while in the latter case, a Sakiadis’ similarity flow appears over a continuously moving flat surface.

Practical implications
The analysis goes beyond jet hydrodynamics, delving into the interplay of electrostatic forces (including Coulomb’s law) and quadratic air drag, drawing upon experimental data on glycerol liquid presented in earlier publications.

Originality/value
Finally, the asymptotic behavior of the stretching jet under the combined influence of electrostatic pull and its electric currents because of bulk conduction and surface convection is validated through a comprehensive numerical simulation of the nonlinear system.
Examining determinants of auditors’ intention to use CAATs in external auditing using an extended UTAUT model; evidence from Sri Lanka
Authors: JS Kumari , Senani K.G.P. , Ajward Roshan 
Published: July 2024

Purpose
This study aims to examine the behavioral intention and the usage of Computer-Assisted Audit Techniques (CAATs) in external auditing by extending the original Unified Theory of the Acceptance and Use of Technology (UTAUT) Model.

Design/methodology/approach
A quantitative research approach is used in this study and 474 responses were secured from external auditors through a self-administered questionnaire, which was analyzed using structural equation modeling.

Findings
Findings reveal that lower Perceived Risk (PR) and Anxiety (AN) of external auditors, which were two constructs that we additionally introduced, contributed as the highest impact factors to the increased intention to use CAATs in external audits. In addition, all other determinants that were introduced [i.e. Self-efficacy (SE), Attitude toward Technology (AT), Perceived Credibility (PC) and Trust (TR)] had a positive impact on the intentions to use CAATs. However, social influence surprisingly negatively influenced the intentions to use CAATs and was positively moderated by Voluntariness (VO). Furthermore, Performance Expectancy (PE) and Effort Expectancy (EE) were also observed to have a positive impact on intentions to use CAATs in external auditing. Moreover, Facilitating Conditions (FC) and Intentions to Use (IU) CAATs were noted to have positive influences on the Actual Use (AU) of CAATs.

Originality/value
The present study extended the UTAUT model by introducing relevant additional constructs: SE, PR, AT, AN, PC and TR, and examined the impact of these on the intention to use CAATs, and subsequently such intentions on the actual use of CAATs in external auditing, with several implications.
The functionality of arbuscular mycorrhizal networks across scales of experimental complexity and ecological relevance
Authors: Magkourilou E. , Bell C. A. , Daniell T. J. , Field K. J. 
Published: July 2024

Abstract

One of the most prevalent symbioses on Earth is that formed between the majority of land plants and arbuscular mycorrhizal (AM) fungi. Through these intimate associations, AM fungi transfer soil nutrients to their plant hosts in exchange for photosynthetically fixed carbon resources.

It has been hypothesised that this nutritional mutualism is evolutionarily stable because both partners are in control of the exchange of resources and can discriminate between partners according to whichever offers the highest returns.

However, in nature, plant–AM symbioses are exposed to a wealth of additional biotic and abiotic interactions which can affect the regulation of carbon‐for‐nutrient exchange between symbionts. Moreover, the extraradical hyphae of AM fungi make up underground networks that may be interactive or physically connected, known as common mycorrhizal networks (CMNs). These can link neighbouring plants, potentially further influencing resource distribution across the network. How these layers of complexity interact to influence resource regulation and allocation between plants and AM fungi is not often considered by experimental designs.

Here, we review resource allocation in AM symbioses, scaling up from evidence from reductionist experimental systems using axenic root organ cultures to complex systems incorporating multiple neighbouring plants dealing with other, co‐occurring symbionts.

As experimental designs increase in scale and ecologically relevant complexity, the carbon‐for‐nutrient exchange between plants and their AM symbionts is increasingly subject to disruption associated with the wider ecological context, such as the intricacies of the plant‐fungal interactions in a CMN or the presence of co‐occurring organisms.

Read the free Plain Language Summary for this article on the Journal blog.
The seed dormancy profile of three types of vegetation in Golestan National Park in Iran and a comparison with the world database
Authors: Bagheri Seyed Hamid Reza , Ghaderi‐Far Farshid , Sadeghipour Hamid Reza , Siahmarguee Asieh , Baskin Carol C. , Barani Hossein , Azimmohseni Majid 
Published: July 2024

AbstractDefining the seed dormancy profile (SDP) of plant communities may provide insight into species adaptive mechanisms, community structure, and dynamics. Golestan National Park (GNP) in Iran consists of different types of vegetation, namely deciduous temperate forest, matorral, and steppe in close proximity but with variability of environmental factors. Plant species, life forms, and kinds of seed dormancy were determined in the three vegetation types, and a SDP of types was generated and compared with corresponding ones in the world database. In all GNP vegetation types, 80%–82% and 2%–3% of the species had dormant (D), and nondormant (ND) seeds, respectively, but in 17% the class of dormancy was unknown. Physiological dormancy (PD) was the most abundant followed by physical dormancy (PY). The species percentage with ND seeds in GNP was significantly two or three times lower than that in the world database. The PD percentage in the matorral was significantly higher than that in the world database. The PY percentage was higher in the forests but lower in the matorral and steppe compared with the world database. The morphophysiological (MPD) dormancy percentage was significantly lower in the forests but higher in the matorral and steppe than in the global database. Seed dormancy profiles were not affected by the proximity of vegetation types in the GNP, but they differed from those of the world database for each vegetation type. The past climatic fluctuations associated with the present‐day seasonality of the region might be the selective pressure for the increased percentage of species with D seeds in the GNP.
Exploring buyer–seller relationships in Indian horticultural marketing: A focus on supermarket buyers
Authors: Saini Mayank , Savita Ubba 
Published: July 2024

AbstractThe emergence of high‐value supply chains, led by supermarket buyers, has transformed traditional avenues for marketing fruits and vegetables in India. Our study explores the evolving relationships between Indian farmers and supermarket buyers in the horticultural market. The investigation centres on understanding farmer satisfaction in this dynamic marketing landscape and its impact on their commitment to supermarket buyers. We identified critical factors such as price offer, reduced marketing cost and convenience as pivotal to farmers' satisfaction using the survey administered to 242 respondents. Results highlight the positive impact of price offer, reduced marketing cost and convenience on farmers' satisfaction, while underscoring that market assurance hampers satisfaction levels among farmers. In practical terms, our findings emphasise the importance of addressing farmers' needs for a more fruitful and mutually enriching partnership with the supermarkets. The study contributes depth to discussions on the evolving face of horticulture, accentuating the impact of modern supply chains on farmer welfare and economic growth.
Trajectories of depressive symptoms in Korean adults with diabetes: Individual differences and associations with life satisfaction and mortality
Authors: Shim Eun‐Jung , Park Sang Jin , Im Gyu Hyeong , Hackett Ruth A. , Zaninotto Paola , Steptoe Andrew 
Published: July 2024

AbstractObjectiveWe examined trajectories of depressive symptoms and their predictors in adults with diabetes. We assessed whether these trajectories were related to life satisfaction and mortality.DesignLongitudinal, prospective observational study.MethodsWe analysed data from 1217 adults with diabetes (aged ≥45 years) in the Korean Longitudinal Study of Aging (2006–2018).ResultsThree trajectories of depressive symptomology were identified in growth mixture models: low/stable (i.e., low and stable levels of symptoms; 85.56%), high/decreasing (i.e., high levels of symptoms with a decreasing trajectory; 7.47%), and moderate/increasing (i.e., moderate levels of symptoms with an increasing trajectory; 6.98%). Participants with poor perceived health status at baseline were more likely to be in the moderate/increasing or high/decreasing classes than in the low/stable class. The moderate/increasing class had the lowest satisfaction with quality of life, followed by the high/decreasing and low/stable classes. The moderate/increasing and the high/decreasing classes had lower satisfaction with relationships with spouse and children than the low/stable class. The high/decreasing class had a higher mortality risk than the low/stable class.ConclusionsLong‐term monitoring of depressive symptoms in adults with diabetes is warranted given their potential adverse impact on life satisfaction and mortality.
Vertebrate taxonomic and functional hotspots in the Brazilian Atlantic Forest
Authors: Pedroso‐Santos Fillipe , Hilário Renato Richard , Xavier Bruna da Silva , Santos Ana M. C. , Mustin Karen , Carvalho William Douglas 
Published: July 2024

AbstractAimWe aim to find the main drivers of the taxonomic and functional richness and functional dispersion of vertebrates (amphibians, birds, primates, marsupials, rodents, bats and medium‐ and large‐sized mammals) across the Brazilian Atlantic Forest. We also aim to identify hotspots of vertebrate diversity and quantify the extent to which they are legally protected.LocationBrazilian Atlantic Forest.MethodsWe gathered data on the occurrence of vertebrates based on the most recent published databases for Atlantic Forest vertebrates and measured taxonomic richness, functional richness and functional dispersion. We then related variation in diversity, within each group and overall, to environmental and landscape variables. Also, we modelled the diversity of each group for the entire extent of the Atlantic Forest, superimposing the diversity maps to delimit the vertebrate biodiversity hotspots and verified how much of these hotspots are covered by protected areas.ResultsTaxonomic/functional diversity were driven by environmental (e.g., average annual precipitation and precipitation of the driest quarter) and landscape variables (e.g., amount of forest and agricultural areas) for most taxonomic groups. The main hotspots of taxonomic richness are located in the central region of the Atlantic Forest, whereas those for functional diversity occur in the southern region of the biome. Only a little over 10% of the Atlantic Forest is covered by protected areas, and, as such, the vast majority of the medium and high diversity areas fall outside of protected areas, being therefore not legally protected.Main ConclusionsWe found evidence for previously described patterns, including the predicted positive effects of the amount of forest in the landscape and precipitation and the negative effects of agricultural areas on vertebrate diversity. Finally, our results show that most diversity hotspots are outside of legally protected areas, indicating that more conservation efforts should be made towards safeguarding these important areas.