bluuebunny/crossref_metadata_2025_split huggingface dataset:
Mapping agents: A spatial economic analysis of agent location in the Federal Crop Insurance Program
Authors: DeLay Nathan D. , Walters Cory G. 
Published: December 2024

AbstractCrop insurance is delivered to farmers and ranchers through a partnership among the Federal Crop Insurance Corporation (FCIC), part of the United States Department of Agriculture, and the crop insurance industry. The FCIC offers financial incentives, through reinsurance and subsidies, to private insurance companies for insurance contracts sold in accordance with the Standard Reinsurance Agreement (SRA). Crop insurance agents play an important role in the delivery of the federal crop insurance program, acting as intermediaries between farmers and crop insurance companies. Little is understood about the supply of crop insurance agents and the role of government policy in the provision of agent services, particularly after the 2010 SRA. We model the equilibrium supply of crop insurance agents to derive testable hypotheses about the factors that influence agent concentration across space. We evaluate our model using spatial econometric techniques and a novel dataset of crop insurance agent locations by county. Generally, forces that raise agent compensation, including the degree of competition among insurance companies, are shown to increase the local supply of agents. Results vary by government‐defined reinsurance regions. Notably, historical average premium rates, which both reflect actuarial risk and influence farmer insurance demand, are negatively related to agent competition in the low‐risk Group 1 states, which contributes over 40% of insured liabilities. These factors produce spatial spillovers, suggesting the presence of agglomeration effects in the market for agent services. Proposed changes to the SRA should consider impacts on the regional distribution and local supply of agents.
Swallowed voice: The ethnography of historical experience as method to describe fate and ethnicity as the experience of geographical boundary lines embodied in refugees
Authors: Müller‐Schwarze Nina Katharina 
Published: December 2024

AbstractThis study collects oral histories in intersubjective methods. Grounded methods allowed for themes to emerge that revealed strategies of self‐definition expressed by survivors of ethnic cleansing. The discussion draws on interdisciplinary literature to broaden the scholarly focus from bounded wholes to historical experience. Political scientists convincingly define Silesia as ethnicity and geographical areas in Europe today, yet this anthropological study focuses on the effects of history (sensu Foucault 1972) as experienced, especially emotionally and traumatically, when geopolitical powers divided families into those who stayed and those forced to leave. The discursive field and historical experience of Silesia is vast. An innovative methodology, the ethnography of historical experience, allows for people's experiences of geopolitical boundaries and nation–states to emerge. Themes that emerge distinguish this discursive field in its polyvocality and heteroglossia as creole and multilingual people who experience the imposition of nation–states repeatedly in history. Intersubjective methods change the subjectivity and singing voice of the text author over the long period of this study, and the silent space of trauma is mutually revoiced. Theory from interdisciplinary fields contextualizes the empirical evidence after the themes emerged.
Complex trajectories are associated with neurological impairment in infants with congenital gastrointestinal malformations aged two
Authors: Midavaine Manon , Vinit Nicolas , Sartorius Victor , Kermorvant‐Duchemin Elsa , Lapillonne Alexandre 
Published: December 2024

AbstractAimOur aims were to describe the neurodevelopment of infants with congenital gastrointestinal malformations at 2 years of age and to investigate the association between developmental delay and complex trajectories.MethodsWe conducted a retrospective cohort study. Infants operated on for oesophageal atresia, abdominal wall defects, intestinal malformation, congenital diaphragmatic hernia and anorectal malformation were analysed. Neurodevelopment was assessed using the Ages and Stages Questionnaire at 24 months. The primary outcome was the presence of developmental delay, defined as ASQ‐24 months of total score ≤ 185.ResultsOf 118 patients, 11 (9%) had an ASQ‐24 months ≤185. Factors associated with an ASQ‐24 months ≤185 were earlier gestational age (p = 0.045), longer invasive ventilation (p = 0.046), longer parenteral nutrition (p = 0.043) and ≥2 hospitalisations in the first 2 years (p = 0.022). They had a significantly longer stay in the neonatal intensive care unit and subsequent hospitalisations (p = 0.007). After adjustment for prematurity and breastfeeding, this association remained statistically significant.ConclusionNine per cent of children with a gastrointestinal malformation show a developmental delay at the age of two. A prolonged stay in the neonatal intensive care unit and subsequent hospitalisations are associated with an increased risk of neurodevelopmental disorders, while breastfeeding may have a protective effect.
‘Are you ready for a little chat?’1: Creating and developing WhatsApp group chats as a digital research method
Authors: Halliwell Jamie 
Published: December 2024

AbstractThis paper explores how social media ‘group chats’ were developed and applied as a digital research method. Group chats were created using the social media platform WhatsApp to investigate issues regarding Eurovision Song Contest fan practices and their intersection with the expression of sexual identity. I argue that group chats advance our understandings of traditional focus group and remote research methods in geography. Group chats do this by providing opportunities to conduct remote research with multiple groups of people. They are also mobile, temporal, provide additional digital tools for users to express their identity, and help to improve data capture and understanding of social processes. This research highlights the benefits and disadvantages of using group chats as a digital method in terms of their organisation, delivery, data collection and analysis. Benefits include that they are mobile and instantly accessible, they can co‐ordinate groups of people who are geographically disparate, they can take place over a period of time rather than being a ‘one‐off’ event, they remove the barriers of face‐to‐face communication that produce social anxiety, and they enable the capture of multidimensional forms of data, including images, text and GIFs. Disadvantages include missing out on and recontextualising data when absent from a group chat temporarily, and limited data output from and dynamism between participants who were unavailable for long periods. I explore how applying group chats as a digital research method challenges and blurs the distinctions between the personal, the researcher and the researched, and how they can also be reaffirmed in direct messaging spaces where participants flirt with the researcher. Lastly, this paper considers the future potentials of using group chats and social media platforms, like WhatsApp, to understand the socio‐digital practices around live music events.
Potential categories and influencing factors of problem behaviours in high school students: Based on latent profile analysis
Authors: Wu Shuman , Chen Jiarong , Du Mingshi 
Published: December 2024

AbstractTo explore the potential categories of problem behaviours among high school students and their relationships with parental support and optimism–pessimism, a cluster sampling method was utilized to survey 682 first‐ and second‐year high school students. The results of the latent profile analysis indicated: (1) There were differences between male and female students across various dimensions of problem behaviours, with males scoring significantly higher in aggressive behaviour and delinquency, whereas females scored significantly higher in withdrawal behaviour, neuroticism and exam anxiety. (2) The study identified three latent categories of high school students based on their problem behaviours: the low‐risk group, the moderate‐risk group and the high‐risk group. The majority of students with problem behaviours belong to the low and moderate‐risk groups, suggesting that most high school students exhibit problem behaviours at a moderate or low level. (3) As environmental and individual factors, respectively, parental support and optimism–pessimism have a correlation with problem behaviours among high school students. The above research findings can assist educators in developing more targeted prevention and intervention strategies for different categories of high school students based on their levels of problem behaviours.
Innovations in Practice: Brief behavioral parent training for children with impairing ADHD characteristics – a pilot study
Authors: Nijboer Marijn , van Doornik Roos , Groenman Annabeth P. , van der Oord Saskia , Hornstra Rianne , van den Hoofdakker Barbara , Dekkers Tycho J. 
Published: December 2024

BackgroundBehavioral parent training (BPT) is a well‐established intervention for children with attention‐deficit/hyperactivity disorder (ADHD), but most programs are long, which may limit their accessibility. This could be improved by making programs shorter. Here, we studied (1) the feasibility of a new brief BPT program and its procedures, and (2) pre–post changes in daily rated problem behaviors (primary outcome), children's disruptive behaviors, ADHD/ODD characteristics, impairment, and parents' sense of parenting competence (secondary outcomes).MethodsWe conducted a nonrandomized pilot study including parents of 28 children (4–12 years) with impaired ADHD characteristics. We examined treatment dropout, parent and therapist satisfaction, recruitment rates, study drop‐out, measurement response and completion rates, acceptability of measurements according to parents, and treatment fidelity. Pre–post changes in the treatment group were compared to those in a historical control group using mixed model analysis, except for those outcomes that were not assessed in the control group. Within‐group differences were analyzed for all outcomes.ResultsFeasibility of the program and study procedures were good. Treatment dropout was 14.2%, parents and therapists were satisfied with the new program. We recruited 1.5 participants per month, study dropout was 10.7%, response/completion rates ranged from 82% to 100%, measurements were acceptable for parents, and treatment fidelity was 96%. We found substantial within‐group changes (d's = .68–.77) and medium‐sized between‐group changes (d's = .46–.48) on daily rated problem behaviors. We observed no changes on most of the secondary outcomes, except for disruptive behaviors and impairment.ConclusionOur newly developed brief BPT program was feasible and we observed improvements in children's daily‐rated problem behaviors. These results suggest that brief BPT might be beneficial for clinical practice if the findings are confirmed in large‐scale randomized controlled trials.
Foamy Cell Angiosarcoma Resembling a Xanthomatous Histiocytic Infiltrate Without Evidence of Vascular Malignancy
Authors: Potts Jolee , Harocopos George J. , Russell Aaron J. 
Published: December 2024

ABSTRACTAngiosarcoma is a rare and aggressive malignancy of endothelial cells with multiple subtypes. Foamy cell angiosarcoma is a rare variant in which endothelial cells demonstrate “foamy” cytoplasmic change. We present the case of a 59‐year‐old male who presented with progressive erythema and swelling of the midface and bilateral eyelids. Two biopsies obtained 3 months apart showed an infiltrate of foamy mononuclear cells in the deep dermis, resembling a xanthomatous histiocytic process. Clinical work‐up for disorders including Erdheim‐Chester disease, Langerhans cell histiocytosis, and necrobiotic xanthogranuloma was negative. Nine months later, a third set of biopsies was performed showing a similar infiltrate of foamy histiocyte‐like cells within the deep dermis. However, there was also a dermal proliferation of irregular vascular spaces lined by atypical endothelial cells, diagnostic of angiosarcoma. Subsequent immunohistochemical stains demonstrated expression of CD31 and ERG within the foamy cells in both sets of biopsies, strongly suggesting endothelial lineage and supporting a diagnosis of foamy cell angiosarcoma. CD34 was negative. This case represents a very unusual presentation of angiosarcoma and a diagnostic conundrum. In cases such as these, especially when features of a vascular proliferation are absent, ERG appears to be the most useful marker for differentiating foamy cell angiosarcoma from histopathologic mimickers.
Home field effects on the assimilation of inorganic nitrogen fertiliser into proteinaceous amino acids
Authors: Reay Michaela K. , Dunn Jamie , Chiewattanakul Mashita , Griffiths Robert I. , Evershed Richard P. 
Published: December 2024

AbstractThe local adaption of soil microbial communities to native litter inputs, the so‐called home field effect (HFE), is well established, though this phenomenon has yet to be demonstrated for agriculturally relevant inorganic nutrient sources. Using compound‐specific 15N‐stable isotope probing of proteinaceous amino acids (AAs), we investigated if continuous long‐term grassland fertilisation with either ammonium or nitrate resulted in preferential assimilation by the soil microbial community of the ‘home’ N fertiliser. Relative ammonium uptake was maximal in historic ammonium treated soils and previously unfertilised soil, confirming a general microbial preference for ammonium likely due to biochemical transformation efficiencies. Assimilation of nitrate and ammonium into AAs was comparable for the historic nitrate fertilisation, indicating that microbial adaptive processes governed by historical land use can dictate the immobilisation efficiency of different fertilisers. This is the first observation of the HFE in long‐term fertilised grassland soils, with further work required to investigate abiotic or biotic mechanisms underpinning this phenomena.
Smoking, alcohol consumption, and risk of recurrent falls in community‐dwelling Japanese people aged 40–74 years: The Murakami cohort study
Authors: Kimura Shion , Suzuki Choji , Kitamura Kaori , Watanabe Yumi , Kabasawa Keiko , Takahashi Akemi , Saito Toshiko , Kobayashi Ryosaku , Oshiki Rieko , Takachi Ribeka , Tsugane Shoichiro , Yamazaki Osamu , Watanabe Kei , Nakamura Kazutoshi 
Published: December 2024

AimEvidence is lacking regarding associations between smoking/drinking and falls. This study aimed to determine longitudinal associations between smoking, alcohol consumption, and fall risk in middle‐aged and older people.MethodsParticipants of this cohort study were 7542 community‐dwelling Japanese people aged 40–74 years. The baseline self‐administered questionnaire survey was conducted in 2011–2013, and the second survey was conducted 5 years later. Predictors were smoking level and alcohol consumption. The outcome was the occurrence of recurrent falls. Information on self‐reported falls in the previous year was obtained. Covariates were demographics, lifestyle factors, body mass index, general health status, and disease history.ResultsThe mean age of participants was 60.3 years. Higher smoking levels were associated with a higher recurrent fall risk (adjusted P for trend = 0.0386), with the ≥20 cigarettes/day group having a higher risk (adjusted odds ratio [OR] = 1.93, 95% confidence interval [CI]: 1.20–3.10) than lifetime non‐smokers. The association between smoking and recurrent fall risk tended to be stronger in drinkers than in non‐drinkers (adjusted OR = 2.75, 95% CI: 1.57–4.81), suggesting a potential interaction (P for interaction = 0.1035). Although there were no dose‐dependent associations between alcohol consumption and recurrent fall risk overall, moderate alcohol consumption (150–299 g ethanol/week) was associated with a lower risk (adjusted OR = 0.57, 95% CI: 0.33–0.98) compared with no consumption in men.ConclusionsSmoking, but not alcohol consumption, is dose‐dependently associated with high fall risk. However, moderate alcohol consumption may be associated with a decreased fall risk. Moreover, there may be a potential interaction between smoking and alcohol consumption on fall risk. Geriatr Gerontol Int 2025; 25: 67–74.
Enhanced electrical reliability of Zr‐doped BaTiO3 nanoceramics: First‐principle calculations and experimental studies
Authors: Zhang Weichen , Cheng Xu , Zhen Yichao , Cao Xiuhua , Fu Zhenxiao , Zhang Hui , Wang Xiaohui 
Published: December 2024

AbstractWith the miniaturization of multilayer ceramic capacitors (MLCCs) and the increase of electric field on single‐layer dielectrics, it is essential for the development of nanograin high‐reliability dielectric materials. In this work, Zr‐doped BaTiO3‐based ceramics with an average grain size of 130–150 nm were prepared by a chemical coating method. The effects and intrinsic mechanisms of Zr concentration on microstructure, dielectric properties, and reliability were systematically investigated by theoretical calculations and experiments. Zr additives lower the migration barrier of the dopants, which consequently contributes to the formation of thick shell layers in the core‐shell structure and grain growth, affecting the temperature stability and DC bias characteristics of the dielectric constant. Owing to the large change rate of the Zr–O bond length, the introduction of Zr increases the migration barrier of oxygen vacancies. However, the decrease in the effective doping concentration of the shell part and the reduction in the number of grain boundaries of ceramics with high Zr content have a weakening effect on the inhibition of oxygen vacancy migration. An appropriate amount of Zr doping can adjust the dielectric properties and improve the reliability of BaTiO3‐based ceramics. This study provides a theoretical reference for the design of high‐quality MLCCs.
New insight on the potential detrimental effect of metabolic syndrome on the Alzheimer disease neuropathology: Mechanistic role
Authors: Ali Naif H. , Al‐Kuraishy Hayder M. , Al‐Gareeb Ali I. , Alexiou Athanasios , Papadakis Marios , Bahaa Mostafa M. , Alibrahim Fawaz , Batiha Gaber El‐Saber 
Published: December 2024

AbstractThe metabolic syndrome or syndrome X is a clustering of different components counting insulin resistance (IR), glucose intolerance, visceral obesity, hypertension and dyslipidemia. It has been shown that IR and dysregulation of insulin signalling play a critical role in the development of metabolic syndrome by initiating the pathophysiology of metabolic syndrome through induction of glucolipotoxicity, impairment of glucose disposal and triggering of pro‐inflammatory response. Furthermore, metabolic syndrome unfavourably affects the cognitive function and the development of different neurodegenerative diseases such as Alzheimer disease (AD) by inducing oxidative stress, neuroinflammation and brain IR. These changes together with brain IR impair cerebrovascular reactivity leading to cognitive impairment. In addition, metabolic syndrome increases the risk for the development of AD. However, the central mechanisms by which metabolic syndrome amplify AD risk are not completely elucidated. Consequently, this narrative review aims to revise from published articles the association between metabolic syndrome and AD regarding cellular and subcellular pathways. In conclusion, metabolic syndrome is regarded as a potential risk factor for the induction of AD neuropathology by different signalling pathways such as initiation of brain IR, activation of inflammatory signalling pathways and neuroinflammation.
Social connection and its prospective association with adolescent internalising and externalising symptoms: an exploratory cross‐country study using retrospective harmonisation
Authors: Moltrecht Bettina , Villanova do Amaral João , Salum Giovanni Abrahão , Miguel Euripedes Constantino , Rohde Luis Augusto , Ploubidis George B. , McElroy Eoin , Hoffmann Mauricio Scopel 
Published: December 2024

BackgroundSocial connection factors play a key role for young people's mental health. It is important to understand how their influence may vary across contexts. We investigated structural (e.g. household size), functional (e.g. social support) and quality (e.g. feeling close) social connection factors in relation to adolescent internalising and externalising symptoms, comparing two countries Brazil and the United Kingdom (UK).MethodsWe pooled data from the UK Millennium Cohort Study (MCS) and the Brazilian High Risk Cohort Study (BHRCS). We included 12 social connection variables, identified through retrospective harmonisation and lived experience expert involvement. We tested measurement invariance and conducted multiple regressions to analyse associations between the social connection factors (age 14) and later internalising and externalising difficulties (age 17.5) in both cohorts. We investigated country‐level interactions and used weights to account for attrition, survey design, population representativeness and sample size.ResultsWe found pooled main associations with later internalising symptoms for ‘living with half‐siblings’ (p < .001), ‘moving address’ (p = .001), ‘mother marital status’ (p < .001–.003), ‘bullying’ (p = .001), ‘being bullied’ (p < .001) and ‘difficulties keeping friends’ (p < .001). For externalising, we found main associations with ‘household size’ (p = .041), ‘moving address’ (p = .041), ‘mother's marital status’ (p = .001–.013), ‘bullying others’ (p < .001) and ‘being bullied’ (p < .001). Country‐level interactions suggested higher internalising symptoms were associated with ‘household size’ (p = .001) in Brazil and ‘being bullied’ (p < .001) in MCS. Additionally, ‘half‐siblings in household’ (p = .003), ‘poor mother–child relationship’ (p = .018), ‘single mother’ (p = .035), ‘bullying’ (p < .001) and ‘being bullied’ (p < .001) were more strongly linked to externalising difficulties in MCS.ConclusionsSocial connection factors, mostly structural, contributed to adolescent internalising and externalising difficulties in both countries. Factors relating to bullying and family composition seem to play a stronger role in each country. Cultural and socioeconomic factors might explain these differences. Future research should investigate cross‐regional differences to meaningfully inform global mental health efforts.