To save content items to your account,
please confirm that you agree to abide by our usage policies.
If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account.
Find out more about saving content to .
To save content items to your Kindle, first ensure no-reply@cambridge.org
is added to your Approved Personal Document E-mail List under your Personal Document Settings
on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part
of your Kindle email address below.
Find out more about saving to your Kindle.
Note you can select to save to either the @free.kindle.com or @kindle.com variations.
‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi.
‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
Friends and popular peers are important sources of influence across the transition into adolescence. The present study examines the assertion that the magnitude of influence from friends and popularity-based norms varies across behavioral domains. Participants were 543 (268 girls, 275 boys) students from 29 5th–8th grade (ages 10 to 14) classrooms in three Lithuanian public middle schools. Most were ethnic Lithuanians. Self-reports of socioemotional adjustment, including emotional problems, lack of emotional clarity, problem behaviors, social media use, and weight concerns, were collected in the fall and winter of a single academic year, approximately three months apart. Popularity and academic achievement were assessed through peer nominations. Top-ranked best friends were identified from outgoing nominations. Status-based norms, calculated separately for each socioemotional adjustment variable in the fall (Time 1), represented popularity-weighted classroom averages. Results from longitudinal Group Actor-Partner Interdependence Model analyses indicated that best friends and status-based norms exerted differing amounts of influence over different behaviors. When both were included in the same model (with shared effects removed), best friends influenced emotional problems, lack of emotional clarity, and problem behaviors. Among older adolescents, best friends also influenced academic achievement. Status-based norms influenced social media use and, among older adolescents, weight concerns.
It is well established that attitudes towards immigration are linked to policy preferences and voting behaviour. However, we lack insights on the relevance of the other side of the migration coin: emigration. This is especially pertinent in the European Union (EU), which guarantees free movement of persons and where large-scale mobility gained momentum following the Eastern enlargement (East to West) and the euro crisis (South to North). Drawing on a 2021 survey conducted in nine peripheral EU countries, this study investigates whether concerns about emigration shape electoral behaviour. Findings indicate that such concerns reduce support for governing parties, but only among individuals with high levels of political trust, highlighting trust as a key moderating factor. At the country level, concerns about emigration favour radical-right parties, though not exclusively. In fact, the politicization of emigration can potentially benefit (or disadvantage) a range of parties depending on national political conditions.
Neurodevelopmental models regard impulsivity as a central risk factor for adolescent substance use. However, the practical utility of impulsivity in predicting substance use is complicated by variability among measures that encompass multiple methods and theoretical domains. Prior research has been constrained by cross-sectional designs, small sample sizes, and/or the use of a narrow subset of impulsivity measures.
Method
Leveraging the ABCD dataset (n = 11,868), we identified and replicated correlations among impulsivity measures and assessed their prospective longitudinal and concurrent predictive utility regarding adolescent substance use outcomes before 15 years old. We then used simulation to inform how associations between impulsivity and substance use vary across sampling strategies (population vs. high-risk cohorts) and sample sizes.
Findings
Correlations between questionnaire and behavioral measures of impulsivity were small, and questionnaires significantly outperformed behavioral measures in predicting substance use initiation, largely due to the contribution of the CBCL externalizing scale. Predictions of substance use based on impulsivity were statistically detectable but small according to clinical standards (AUCs 0.6–0.76), exhibiting sensitivity to sample size and base rate of substance use, and thus, poor absolute predictive performance. Large samples (n > 1,000) were needed to achieve adequate power for impulsivity measures to predict substance use initiation.
Conclusion
These results support a significant but small contribution of impulsivity in predicting the onset of early adolescent substance use, indicating that these factors alone are insufficient for clinically deployable prediction. In community samples, large sample sizes are needed for reproducible impulsivity prediction of adolescent substance use.
In his book The Work of the Holy Spirit, Kuyper begins (in the original Dutch version) with an extensive reference to John Owen. This raises the question of his relationship to Owen. Is his theology derived from John Owen? This study outlines Owen’s view of regeneration. We then consider how Kuyper developed his theology of regeneration. It appears that the metaphor of the ‘seed’ is central to his understanding of the new birth. The seed can retain its germinating capacity for years and only then sprout. When we compare this metaphor with Owen, it appears that Kuyper uses a concept that John Owen also uses, but he elaborates in a completely different way so that it ultimately becomes a different concept.
Mugane (1997) identifies two types of individual-denoting nominalizations in Gĩkũyũ (Bantu): the [mu… a]-type and the [mu… i]-type. He argues that the [mu… i]-type nominalizations are phrasal and that the [mu… a]-type nominalizations exhibit a puzzling nature, displaying both lexical and syntactic properties. This study examines Mugane’s characterization, revisiting the notion of a lexicon-syntax divide. Applying Wood’s (2023) Complex Head analysis, I demonstrate that we can explain the [mu… a]-type nominalizations within a syntactic framework without resorting to the lexicon. The analysis reveals that the puzzle is resolvable and that syntax can account for both types of nominalizations in Gĩkũyũ.
Neuromorphic vision-based robotic tactile sensors fuse touch and vision, enabling manipulators to efficiently grip and identify objects. Precise robotic manipulation requires early detection of slips on the grasped object, which is crucial for maintaining grip stability and safety. Modern closed-loop feedback technologies use measurements from neuromorphic vision-based tactile sensors to control and prevent object slippage. Unfortunately, most of these sensors measure and report data-based rather than model-based information, resulting in less efficient control capabilities. This work proposes physical and mathematical modeling of an in-house-developed neuromorphic vision-based robotic tactile sensor that utilizes a protruded marker design to demonstrate the model-based approach. This sensor is mounted on the UR10 robotic manipulator, enabling manipulation tasks such as approaching, pressing, and slipping. The neuromorphic vision-based robotic tactile sensor-derived mathematical model revealed first-order system behavior for three manipulation-related actions under study. Experimental robotic manipulator grasping work is conducted to verify and validate the sensor’s derived mathematical FOS model. Two data analysis approaches, temporal and spatial–temporal model based, are adopted to classify the manipulator-sensor actions. A long short-term memory (LSTM) temporal classifier is engineered to exploit the sensor’s derived model. Also, the LSTM spatial–temporal classifier is designed using an event-weighted centroid of the region-of-interest features. Both LSTM methods successfully identified the robotic actions performed with an accuracy of more than 99%. Additionally, quantitative slip rate estimation is carried out based on centroid estimation, and qualitative assessment of pressing force is performed using a fuzzy logic classifier.
Lorenz dominance is a classical criterion for comparing income distributions with respect to inequality and social welfare. However, its binary nature, in which one distribution either dominates another or does not, often leads to inconclusive results when empirical Lorenz curves intersect. To overcome this limitation, we introduce the Lorenz dominance index (LDI), a continuous measure that quantifies the extent to which one Lorenz curve lies above another. The LDI provides an interpretable assessment based on the population, allowing for the evaluation of partial or near dominance and improving its usefulness in empirical settings. We derive the asymptotic distribution of the LDI and propose a nonparametric bootstrap procedure to construct confidence intervals and perform inference. Monte Carlo simulations confirm the estimator’s strong performance in finite samples and its nominal coverage. An application to household income data from China highlights the practical value of the LDI in distributional analysis.
Adapting to a global urban future requires diverse, long-term perspectives on urbanism. URBank supports this by bringing together global deep-time urban datasets in a modern open-science computing platform. Its design eschews checklist definitions of cities, representing the variability of past urbanism and enabling systematic comparative spatiotemporal research.
It has long been recognized that the “Irish Question” was also an imperial question. The vast Irish diaspora in the settler colonies ensured that Home Rule had enormous consequences for the wider empire. But scholars have yet fully to appreciate the part that political elites in the self-governing Dominions played in this story. This article explores the role of colonial statesmen in Anglo-Irish affairs. Figures like Australia’s Billy Hughes or South Africa’s Jan Smuts were able to navigate the emotional complexities of Irish nationalist politics in a manner that transcended British party politics. In the process, they framed “colonial” Home Rule as a compromise between British rule and independence. This article shows how Irish nationalist politics became enmeshed with imperial politics in a manner that blurred the line between the local, national, imperial, and global.
Political meritocracy is the idea that the political system should aim to select and promote public officials with superior ability and virtue. The ideal was developed in pre-Qin Chinese history by Confucianism and other schools of political thought. A similar ideal is put forward in Plato’s Republic but political meritocracy has been central the Chinese political thinking for about 2,500 years. It was institutionalized in imperial China by means of a complex bureaucratic system designed to select and promote superior public officials that lasted more than two millennia. The imperial system collapsed in 1912 but the meritocratic bureaucratic system has been reestablished in form (but not content) over the last four decades in China.
In the ecologically diverse metropolitan area of Seoul, raccoon dogs (Nyctereutes procyonoides) coexist with humans and domestic animals, creating opportunities for vector-borne parasite transmission. Climate-driven shifts in mosquito populations may further enhance these risks, highlighting the need to monitor Dirofilaria immitis in urban wildlife for veterinary and public health. Among 51 raccoon dogs examined, D. immitis was identified in the pulmonary arteries and right ventricle of 13 animals (25.5%) by necropsy, with worm burdens ranging from 2 to 9. Lung tissue PCR revealed 4 additional subclinical infections, resulting in a final confirmed prevalence of 17 positives (33.3%). In contrast, whole-blood PCR detected only 11 positives (21.6%), all confirmed by necropsy, indicating higher sensitivity of lung tissue PCR. Phylogenetic analysis of cytochrome c oxidase subunit 1 sequences showed all isolates clustered with reference D. immitis across Asia and Europe, and haplotype analysis revealed low genetic diversity among Korean isolates. Wolbachia 16S ribosomal RNA sequences from raccoon dogs consistently grouped in supergroup C, confirming their association with D. immitis. These findings confirm natural infections of D. immitis and Wolbachia in wild raccoon dogs and highlight their potential role as urban wildlife reservoirs, while lung tissue-based molecular detection offers synergistic advantages for detecting subclinical infections and improving estimates of heartworm occurrence.
Policy is often seen as the synthesis of economic and political interests of the most influential players operating in material economic structures such as industrial sectors and markets. However, this is not always the case as the formation of policies often depends only partially on the inputs from economic structures, while greater influence is exercised by the internal logics of policy processes and by shared beliefs among policymakers and the society. This paper explores this issue through a comparison of the UK and US liberalisation policies of the natural gas sector.
For many First Peoples, language is indissociable from living relationships within interspecies communities where humans are not the only ones who feel, think, listen and speak. Words not only carry meanings attributable to human language but also carry the spirit of a place, as both a material and metaphysical transmission of sentience across species and generations. This article draws on ecolinguistic research into the Indigenous language of the Dayak Ngaju people and its role in regenerating peatland forests in Central Kalimantan. The study employs an Indigenous research methodology led by the first author, who is a PhD student and member of the Dayak Ngaju community. This methodology situates Dayak Ngaju language within an animistic reality inclusive of nonhuman creatures, objects and spiritual beings. Attending to the complexities of Indigenous PhD studies, the article proposes the cultivation of “new animisms,” which recognise the future-making pedagogies of Indigenous ontologies and ecolinguistic systems.
Why did the United States return to the gold standard in 1879, and why did the ensuing Gilded Age feature a high level of financial instability? While existing scholarship adopts an economic development model of monetary policy that emphasizes material interests in explaining government retrenchment during Reconstruction, this paper argues that the confluence of state interests in cheap borrowing and financial elites' interest in debt monetization led to the outsourcing of monetary policy and the financial instability of the Gilded Age.
The evaluation of the role of face masks in preventing respiratory infections is a paradigm case in synthesising complex evidence (i.e. extensive, diverse, technically specialised, and with multilevel chains of causality). Primary studies have assessed different mask types, diseases, populations, and settings using different research designs. Numerous review teams have attempted to synthesise this literature, in which observational (case–control, cohort, cross-sectional) and ecological studies predominate. Their findings and conclusions vary widely.
This article critically examines how 66 systematic reviews dealt with mask efficacy studies. Risk-of-bias tools produced unreliable assessments when—as was often the case—review teams lacked methodological expertise or topic-specific understanding. This was especially true when datasets were large and heterogeneous, with multiple biases playing out in different ways and requiring nuanced adjustments. In such circumstances, tools were sometimes used crudely and reductively rather than to support close reading of primary studies and guide expert judgments. Various moves by reviewers—excluding observational evidence altogether, assessing risk but not direction of biases, omitting distinguishing details of primary studies, and producing meta-analyses that combined studies of different designs or included studies at critical risk of bias—served to obscure important aspects of heterogeneity, resulting in bland and unhelpful summary statements.
We draw on philosophy to question the formulaic use of generic risk-of-bias tools, especially when the primary evidence demands expert understanding and tailoring of study quality questions to the topic. We call for more rigorous training and oversight of reviewers of complex evidence and for new review methods designed specifically for such evidence.