University of Amsterdam

Morphology-Based Surgery for Chronic Pancreatitis Across Europe: Toward the Next Generation of Unified Guidelines

OBJECTIVE: To evaluate the use and impact of current surgical guidelines for chronic pancreatitis (CP) across Europe. SUMMARY BACKGROUND DATA: Current guidelines recommend morphology-based surgery for CP, but international studies evaluating their use and impact are lacking. METH...

EU Influence in Global AI Governance and its Limits

Abstract When the European Union (EU) adopted its AI Act (AIA) in 2024, hopes were high that EU rules would diffuse globally through a “Brussels Effect.” We investigate how structural and contextual factors in the field of AI governance affect the likelihood and transformative po...

Hot blue progenitors of stellar-mass black holes

Abstract While the connection between massive stars and supernova explosions is well established observationally, the link between massive stars and black hole formation remains elusive. Some massive stars may collapse directly to black holes without a successful supernova, and m...

Beyond the machine: risk, fear, optimism and the foundations of public trust in AI

Abstract What drives public trust in artificial intelligence (AI)? This study examines the individual and institutional foundations of AI trust across two contrasting democracies: Japan and the United Kingdom. Drawing on original survey data ( N = 3235), we test a set of hypothes...

Facebook as a Lifeboat: An Interview Study Exploring the Role of Facebook in Supporting Parents of Children with Rare Diseases

Parents of children with rare diseases face unique challenges due to scarce medical expertise and limited information sources. Social media, particularly Facebook, have become a vital (and sometimes the only) space for parents to access information, share experiences, and find em...

On variability in local field potentials

Abstract Neuronal coding and decoding would be compromised if neuronal responses were highly variable. Intriguingly, neuronal spike counts (SCs) show a reduction in across-trial variance (ATV) in response to sensory stimulation, when SC variance is normalized by SC mean, that is,...

Membrane affinity difference between MinD monomer and dimer is not crucial for MinD gradient formation in Bacillus subtilis

Proteins can diffuse micrometers in seconds, yet bacterial cells are able to maintain stable protein gradients. The best studied bacterial protein gradient is the Min system of Escherichia coli. In rod-shaped bacteria the MinCD proteins prevent formation of minicells by inhibitin...

Robust inference and correlates from genetic associations with personality

Personality traits describe stable differences in how people think, feel and behave, and how they interact with and experience their social and physical environments1,2. Many questions remain unanswered about associations between DNA and personality traits, such as their robustne...

Poor mental health in patients with symptomatic osteochondral lesions of the talus

Aims Osteochondral lesions of the talus (OLT) can cause pain and functional limitations, potentially affecting mental health. This study aimed to compare mental health in patients with OLT to the general Dutch population and individuals with mood or anxiety disorders, and to iden...

Brokerage, power and individual innovation:When do brokers act on their structural advantage?

Prior research has found that brokers, those who stand between two disconnected parties, may access non-redundant information that is conducive to higher innovation. However, research has also shown that occupying brokering network positions does not systematically translate into...

The effect of proximity of COVID-19 test facilities on test uptake: two quasi-experimental trials

Access to testing sites is a critical component in reducing the spread of a virus during infectious disease outbreaks. For example, distance to the testing site has been mentioned as an important self-reported barrier for test uptake during the COVID-19 pandemic. Despite its impo...

Intergroup violence in bursts

During intergroup confrontations, agitating stimuli such as opponents’ threats and provocations can trigger collective violence, even without the usual mechanisms of ingroup cooperation, such as norms with sanctions. We examine video recordings of street fights between groups of...

Research Opportunities and Challenges of the EU’s Digital Services Act

Proposing practical measures to ensure the Digital Services Act fulfills its transparency and accountability goals.

Same-sex marriage and migration: politics of belonging, state regulations, and new ways of doing family across borders

The expansion of marriage rights for same-sex couples has coincided in many countries with increasingly restrictive marriage migration policies. These differentiated approaches to marriage – relatively inclusive towards LGBTQI + people and their families, yet increasingly exclusi...

Resonance transformations for the $$(2,2p+1)$$ minimal string via $$x-y$$ swap: a proof of Artemev’s conjecture

Abstract This paper contains a proof of a recent conjecture of Artemev that connected the resonance transformations for the $$(2,2p+1)$$ ( 2 , 2 p + 1 ) minimal string to the $$x-y$$ x - y swap in the theory of topological recursion.

Time-dependent prognostic value of coronary plaque burden and hyperemic myocardial blood flow

Abstract Rationale The time-dependent contributions of coronary atherosclerotic plaque burden and myocardial ischemia to clinical outcomes in suspected coronary artery disease (CAD) remain uncertain. This study aimed to evaluate the temporal associations of quantitatively assesse...

No Easy Fix to Countering AI-Generated Visual Disinformation: The (in)Effectiveness of AI-Labels, Fact-Check Labels and Community Notes

As generative AI makes it easier to create synthetic visuals, AI-driven visual disinformation isbecoming more common on social media. However, while much research highlights its potentialharm, less is known about how to reduce its potential to mislead. In this study, we therefore...

Deciding on thresholds for clinical relevance of PROMIS-upper extremity v2.0 in patients with upper extremity injury

Abstract Purpose In this study we focused on gaining better interpretation of the PROMIS-Upper-Extremity v2.0 (PROMIS-UE v2.0) T-score scale for measuring upper extremity function in patients with upper extremity injuries (UEIs). This is fundamental in order to clearly understand...

Incidence of New Malignancies in Severe Asthma: Comparison of Real-World Patients Treated with Benralizumab, Other Biologics, or Non-biologics

Clinical trials report no increased malignancy risk with benralizumab in severe asthma; however, trial populations are highly selective. To better define real-world safety, malignancy risk was compared among patients treated with benralizumab, other (non-benralizumab) biologics,...

Long-Term Health-Related Quality of Life Outcomes in Patients With Cellulitis Requiring Hospitalisation

In 94 hospitalised patients with cellulitis, HRQoL was markedly impaired at admission and remained significantly below population norms at 90 days, particularly in patients with persistent pain and oedema. These findings highlight the need for post-discharge follow-up focused on...