bluuebunny/crossref_metadata_2025_split huggingface dataset:
Brain-wide functional connectome analysis of 40,000 individuals reveals brain networks that show aging effects in older adults
Authors: Pan Yezhi , Bi Chuan , Kochunov Peter , Shardell Michelle , Smith J. Carson , McCoy Rozalina G. , Ye Zhenyao , Yu Jiaao , Lu Tong , Yang Yifan , Lee Hwiyoung , Liu Song , Gao Si , Ma Yizhou , Li Yiran , Chen Chixiang , Ma Tianzhou , Wang Ze , Nichols Thomas , Hong L. Elliot , Chen Shuo 
Published: May 2024

AbstractThe functional connectome changes with aging. We systematically evaluated aging related alterations in the functional connectome using a whole-brain connectome network analysis in 39,675 participants in UK Biobank project. We used adaptive dense network discovery tools to identify networks directly associated with aging from resting-state fMRI data. We replicated our findings in 499 participants from the Lifespan Human Connectome Project in Aging study. The results consistently revealed two motor-related subnetworks (both permutation test p-values <0.001) that showed a decline in resting-state functional connectivity (rsFC) with increasing age. The first network primarily comprises sensorimotor and dorsal/ventral attention regions from precentral gyrus, postcentral gyrus, superior temporal gyrus, and insular gyrus, while the second network is exclusively composed of basal ganglia regions, namely the caudate, putamen, and globus pallidus. Path analysis indicates that white matter fractional anisotropy mediates 19.6% (p<0.001, 95% CI [7.6% 36.0%]) and 11.5% (p<0.001, 95% CI [6.3% 17.0%]) of the age-related decrease in both networks, respectively. The total volume of white matter hyperintensity mediates 32.1% (p<0.001, 95% CI [16.8% 53.0%]) of the aging-related effect on rsFC in the first subnetwork.
Age-related constraints on the spatial geometry of the brain
Authors: Escalante Yuritza Y. , Adams Jenna N. , Yassa Michael A. , Janssen Niels 
Published: May 2024

ABSTRACTAge-related structural brain changes may be better captured by assessing complex spatial geometric differences rather than isolated changes to individual regions. We applied a novel analytic method to quantify age-related changes to the spatial anatomy of the brain by measuring expansion and compression of global brain shape and the distance between cross-hemisphere homologous regions. To test how global brain shape and regional distances are affected by aging, we analyzed 2,603 structural MRIs (range: 30-97 years). Increasing age was associated with global shape expansion across inferior-anterior gradients, global compression across superior-posterior gradients, and regional expansion between frontotemporal homologues. Specific patterns of global and regional expansion and compression were further associated with clinical impairment and distinctly related to deficits in various cognitive domains. These findings suggest that changes to the complex spatial anatomy and geometry of the aging brain may be associated with reduced efficiency and cognitive dysfunction in older adults.
Anterior pituitary gland volume mediates associations between pubertal hormones and changes in transdiagnostic symptoms in youth
Authors: Picci Giorgia , Petro Nathan M. , Casagrande Chloe C. , Ott Lauren R. , Okelberry Hannah J. , Rice Danielle L. , Coutant Anna T. , Ende Grace C. , Steiner Erica L. , Wang Yu-Ping , Stephen Julia M. , Calhoun Vince D. , Wilson Tony W. 
Published: May 2024

AbstractThe pituitary gland (PG) plays a central role in the production and secretion of pubertal hormones, with documented links to the emergence and increase in mental health symptoms known to occur during adolescence. Although much of the literature has focused on examining whole PG volume, recent findings suggest that there are associations among pubertal hormone levels, including dehydroepiandrosterone (DHEA), subregions of the PG, and elevated mental health symptoms (e.g., internalizing symptoms) during adolescence. Surprisingly, studies have not yet examined associations among these factors and increasing transdiagnostic symptomology, despite DHEA being a primary output of the anterior PG. Therefore, the current study sought to fill this gap by examining whether anterior PG volume specifically mediates associations between DHEA levels and changes in dysregulation symptoms in an adolescent sample (N= 114, 9 – 17 years, Mage= 12.87, SD = 1.88). Following manual tracing of the anterior and posterior PG, structural equation modeling revealed that greater anterior, not posterior, PG volume mediated the association between greater DHEA levels and increasing dysregulation symptoms across time, controlling for baseline dysregulation symptom levels. These results suggest specificity in the role of the anterior PG in adrenarcheal processes that may confer risk for psychopathology during adolescence. This work not only highlights the importance of separately tracing the anterior and posterior PG, but also suggests that transdiagnostic factors like dysregulation are useful in parsing hormone-related increases in mental health symptoms in youth.
Start-ups’ scaling-up strategies at the regional periphery
Authors: Felzensztein Christian , Bagheri Afsaneh 
Published: May 2024

PurposeOur understanding of the strategies that lead to the success of start-ups when they scale-up is limited when it occurs at the regional periphery. The main purpose of this study is to explore the specific strategies that start-ups employ to scale-up, specifically in contexts with high resource constraints at the regional periphery.Design/methodology/approachAnalyzing the data from personal in-depth interviews with engineering and science start-up founders in peripheral regions of upstate New York USA bordering the Canadian Ontario, we explored a combination of internal and external strategies that start-ups employed to scale-up.FindingsThe study found that start-ups prioritize building internal scaling capacity in their human capital, organizational structure, scalable business model, finance and business ownership. To foster the scaling process further, start-ups develop new effective external strategies that target the business environment.Practical implicationsPolicymakers and regional governments can use our research to develop more effective industrial policies for supporting start-ups’ growth and subsiding strategic industry clusters for rebooting new competition policy, which is a current debate in many industrialized economies including the US. This targeted regional industrial policy is specially needed when scaling-up at the regional periphery.Social implicationsOur study is specially need it when scaling-up at the regional periphery and with limited resources.Originality/valueThis study enriches our understanding of the growth of start-ups and small ventures by providing context-based insights into how firms build the capacity to scale-up in highly challenging and uncertain business environments in a peripheral bordering region between the USA and Canada. It also offers useful managerial and policy implications.
Science mapping of the knowledge base on teacher autonomy: a bibliometric study
Authors: Çolak İbrahim 
Published: May 2024

PurposeThis research sought to document the volume, development trend and geographical distribution of the research on teacher autonomy, identify high-impact journals, authors and documents and reveal the intellectual structure of the field.Design/methodology/approachThis paper analyzed the articles published on the related subject in the Web of Science (WoS) and/or Scopus. Based on certain exclusion criteria, analyses were conducted on a total of 259 articles. The data were then subjected to descriptive analyses and bibliometric analyses.FindingsThe review found that the teacher autonomy knowledge base has grown dramatically since 2004. In the co-citation analysis, it was determined that four clusters focused on the themes of professionalism and professional development, leadership and self-efficacy, autonomy in language teaching and learning and self-determination theory. According to the co-word analysis in this review, the most co-occurring keywords were revealed to be “teacher autonomy,” “autonomy,” “teachers,” “teacher professionalism” and “professional development.”Originality/valueDespite increasing numbers of systematic reviews focusing on educational administration and leadership, this paper represents the first bibliometric review conducted to reveal the development of research on teacher autonomy using both the WoS and Scopus databases. Teacher autonomy can be regarded as an emerging field of study backed up by a theoretical background. Although there are some distinct prominent scholars in the research area, autonomy research still needs more scholars to specialize in the field.
Chore or choice? Women and ethnic food entrepreneurship in the city
Authors: Nancheva Nevena 
Published: May 2024

PurposeThis article explores in a qualitative manner the motivations of women entrepreneurs who start and run ethnic food businesses in London.Design/methodology/approachOur approach is qualitative and deploys phenomenographical analysis of interview narratives around categories of motivation.FindingsWe find that women ethnic food entrepreneurs are driven by a combination of desire for self-actualisation, identity-maintenance and community considerations. We demonstrate that women ethnic food entrepreneurs often go against the logic of the market, and they do so not because they lack other options, but for reasons that have to do with their (self-)identification as women and professionals, their prerogatives as mothers and daughters, their ethnic heritage, their emplacement in urban and global communities and their need to contribute. Our findings enrich understanding of female-led ethnic food entrepreneurship not as a demanding, overall unproductive undertaking for women with no other options, but as a realm of inspiration, community engagement and female-led innovation.Originality/valueOur main contributions are the qualitative interrogation of perceptions and experiences of identity and difference in urban entrepreneurship from the point of view of our interviewees; providing concrete empirical evidence for it through our sample and proposing an approach to thinking women-led ethnic food entrepreneurship as a vehicle for translating urban superdiversity into social interactions across barriers of difference. We speak to the field of women entrepreneurship studies but specifically to the understudied realm of women-led food entrepreneurship, and to the cross-disciplinary field of (im)migrant entrepreneurship.
External quality assurance of cost estimates in major public projects: empirical evidence on cost performance
Authors: Berg Helene , Nyhus Ole Henning 
Published: May 2024

PurposeValue creation for society from public projects requires that the overall benefits exceed the use of taxpayers' money. At the same time, cost overruns in public projects are a well-documented feature in the literature, but practical guidance on reducing the extent and magnitude of overruns is rare. In 2000, Norway introduced a governance regime that includes mandatory external quality assurance (QA) of cost estimates for major public projects. This paper compares the cost performance of public projects on each side of this QA scheme.Design/methodology/approachWe use an original dataset covering 1,704 projects from 2000 to 2021, reported first-hand from Norwegian public agencies. We apply quantitative methods in the form of descriptive statistics, regression models, and statistical testing of hypotheses to answer our research questions.FindingsThe mean cost overrun across projects in our dataset is smaller than several previous international studies have reported. We find no statistical support for different cost performances between QA and non-QA projects. Secondly, cost overruns seem to vary between different public sectors. A third finding is a small development with lower cost overruns over time for the non-QA projects, and we raise the question of whether the QA scheme has contributed to overall learning effects. The fourth finding is that cost deviations are quite independent of project size.Originality/valueThe paper offers novel insights for decision-makers and researchers on the effects of external quality assurance on cost performance in public projects.
How do customers’ environmental efforts diffuse to suppliers: the role of customers’ characteristics and suppliers’ digital technology capability
Authors: Feng Yunting , Zhu Qinghua 
Published: May 2024

PurposeThe growing attention to green supply chain transparency prompts firms to disclose their environmental efforts and manage environmental issues along supply chains. Drawn upon diffusion theory, this study aims to investigate how customers’ environmental efforts can be diffused to suppliers for similar actions, as well as how customers’ (diffusors’) characteristics and suppliers’ (followers’) capability in digital technology application moderate the relationship.Design/methodology/approachThis study collects secondary data of 1,514 unique customer-supplier dyad year observations of Chinese listed firms and their disclosed environmental efforts from 2009 to 2022. A fixed-effect regression model is used to test the hypotheses.FindingsThis study reveals a positive association between customers’ disclosed environmental efforts and those of their suppliers. Furthermore, the relationship is strengthened when customers are state-owned or when suppliers possess higher levels of digital technology application capability. These findings remain robust when alternative measures of variables are employed.Originality/valueThis study contributes to the supply chain transparency literature by uncovering the diffusion mechanism of environmental efforts from customers to their suppliers. It further identifies moderators for this diffusion, including customers’ (diffusors’) ownership and suppliers’ (followers’) capability. Lastly, our study extends the applicability of diffusion theory within a buyer–supplier context.
Challenges in adopting blockchain technology in supply chain management: a too far fetched idea?
Authors: Raj Rohit , Singh Arpit , Kumar Vimal , Verma Pratima 
Published: May 2024

PurposeRecent technological advancements, often linked to Industry 4.0, require organizations to be more agile and innovative. Blockchain technology (BT) holds immense potential in driving organizations to achieve efficiency and transparency in supply chains. However, there exist some insurmountable challenges associated with the adoption of BT in organizational supply chains (SC). This paper attempts to categorically identify and systematize the most influential challenges in the implementation of BT in SC.Design/methodology/approachThis study resorts to an extensive literature review and consultations with experts in the field of supply chain management (SCM), information technology and academia to identify, categorize and prioritize the major challenges using VlseKriterijumska Optimizacija I Kompromisno Resenje (VIKOR) and Combined Compromise Solution method (CoCoSo).FindingsThe top three classes of challenges revealed in this study are privacy challenges (PC), infrastructure challenges (IC) and transparency challenges (TC). Maintaining a balance between data openness and secrecy and rectification of incorrect/erroneous input are the top two challenges in the PC category, integration of BT with sustainable practices and ensuring legitimacy are the top two challenges in the IC category, and proper and correct information sharing in organizations was the top most challenge in the TC category.Originality/valueFuture scholars and industry professionals will be guided by the importance of the challenges identified in this study to develop an economical and logical approach for integrating BT to increase the efficiency and outcome of supply chains across several industrial sectors.
Unveiling just-in-time decision support system using social media analytics: a case study on reverse logistics resource recycling
Authors: Shahidzadeh Mohammad Hossein , Shokouhyar Sajjad 
Published: May 2024

PurposeIn recent times, the field of corporate intelligence has gained substantial prominence, employing advanced data analysis techniques to yield pivotal insights for instantaneous strategic and tactical decision-making. Expanding beyond rudimentary post observation and analysis, social media analytics unfolds a comprehensive exploration of diverse data streams encompassing social media platforms and blogs, thereby facilitating an all-encompassing understanding of the dynamic social customer landscape. During an extensive evaluation of social media presence, various indicators such as popularity, impressions, user engagement, content flow, and brand references undergo meticulous scrutiny. Invaluable intelligence lies within user-generated data stemming from social media platforms, encompassing valuable customer perspectives, feedback, and recommendations that have the potential to revolutionize numerous operational facets, including supply chain management. Despite its intrinsic worth, the actual business value of social media data is frequently overshadowed due to the pervasive abundance of content saturating the digital realm. In response to this concern, the present study introduces a cutting-edge system known as the Enterprise Just-in-time Decision Support System (EJDSS).Design/methodology/approachLeveraging deep learning techniques and advanced analytics of social media data, the EJDSS aims to propel business operations forward. Specifically tailored to the domain of marketing, the framework delineates a practical methodology for extracting invaluable insights from the vast expanse of social data. This scholarly work offers a comprehensive overview of fundamental principles, pertinent challenges, functional aspects, and significant advancements in the realm of extensive social data analysis. Moreover, it presents compelling real-world scenarios that vividly illustrate the tangible advantages companies stand to gain by incorporating social data analytics into their decision-making processes and capitalizing on emerging investment prospects.FindingsTo substantiate the efficacy of the EJDSS, a detailed case study centered around reverse logistics resource recycling is presented, accompanied by experimental findings that underscore the system’s exceptional performance. The study showcases remarkable precision, robustness, F1 score, and variance statistics, attaining impressive figures of 83.62%, 78.44%, 83.67%, and 3.79%, respectively.Originality/valueThis scholarly work offers a comprehensive overview of fundamental principles, pertinent challenges, functional aspects, and significant advancements in the realm of extensive social data analysis. Moreover, it presents compelling real-world scenarios that vividly illustrate the tangible advantages companies stand to gain by incorporating social data analytics into their decision-making processes and capitalizing on emerging investment prospects.
Persistent trends and inefficiencies in the Greek housing market: a sentiment based approach
Authors: Vasileiou Evangelos , Hadad Elroi , Oikonomou Martha 
Published: May 2024

PurposeWe examine the aggregate price trend of the Greek housing market from a behavioral perspective.Design/methodology/approachWe construct a behavioral real estate sentiment index, based on relevant real estate search terms from Google Trends and websites, and examine its association with real estate price distributions and trends. By employing EGARCH(1,1) on the New Apartments Index data from the Bank of Greece, we capture real estate price volatility and asymmetric effects resulting from changes in the real estate search index. Enhancing robustness, macroeconomic variables are added to the mean equation. Additionally, a run test assesses the efficiency of the Greek housing market.FindingsThe results show a significant relationship between the Greek housing market and our real estate sentiment index; an increase (decrease) in search activity, indicating a growing interest in the real estate market, is strongly linked to potential increases (decreases) in real estate prices. These results remain robust across various estimation procedures and control variables. These findings underscore the influential role of real estate sentiment on the Greek housing market and highlight the importance of considering behavioral factors when analyzing and predicting trends in the housing market.Originality/valueTo investigate the behavioral effect on the Greek housing market, we construct our behavioral pattern indexes using Google search-based sentiment data from Google Trends. Additionally, we incorporate the Google Trend index as an explanatory variable in the EGARCH mean equation to evaluate the influence of online search behavior on the dynamics and prices of the Greek housing market.
“Should I stay or should I go”: experience does not make the expert in police snap decision-making
Authors: Tejeiro Ricardo , Shortland Neil , Paramio Alberto , Alison Laurence , González José Luis 
Published: May 2024

PurposeWe analyse the role of subject matter experts' experience in establishing performance benchmarks for ambiguous and unstructured police tasks.Design/methodology/approachParticipants included 156 students in the final week of their training to become commissioned officers of a police force (78.8% male, aged 21 to 54); 55.8% had previous experience as police officers, with 5–39 years of service (expert group). Participants completed an online questionnaire providing demographic data and responded to three written vignettes presenting critical high-ambiguity, time-pressure, and life-threatening situations.FindingsHaving prior police experience or being familiar with the situations presented in the vignettes did not impact the decisions made in two of the three vignettes. In the vignette where differences appeared, there was no clearly preferred option among the experts. Experts provided shorter and less elaborate justifications for their decisions compared to novices.Originality/valueOverall experience and personal familiarity with situations do not appear to be sufficient conditions for identifying someone as an expert in this type of tasks. Results are discussed in relation to the difference between knowing what one should do and what one does due to stress and the moral or “sacred” values prevalent in police forces.
Does land consolidation promote livestock production and combat rural depopulation in northern Spain?
Authors: Orea Luis , Pérez‐Méndez José A. , Álvarez Inmaculada 
Published: May 2024

AbstractThis paper evaluates the effect on livestock production and rural population of the land consolidation (LC) processes that occurred over recent decades in Asturias, an autonomous region located in north‐west Spain. We use a novel Difference‐in‐Difference (DiD) model which allows for multiple LCs at different points in time and for spatial spill‐overs. As many parishes have been involved in two or more LC processes, we test whether we can simplify our analysis using a specification for these parishes that accumulates the effect of consecutive, and often distant, LC processes. We find that this simplification can be implemented when we analyse the effect of the LC processes on parishes' livestock production, but not when we examine their effects on parish population. We find that parish livestock production increases on average by about 3% once we take into account spatial effects, and that LC processes have especially attenuated the decline in the number of farms in (coastal) parishes where dairy farms predominate. We do not find strong evidence regarding the effectiveness of LC processes in redressing rural depopulation, except in some of the parishes located in western Asturias.