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Complexity Science Hub


Current strategies ineffective in controlling Salmonella Dublin in Danish cattle

Researchers found that disease transmission between farms persists despite movement restrictions, with cattle movement activities being the strongest predictor of farm infections. The study calls for a multifaceted approach to managing Salmonella Dublin, including closer monitoring and targeted interventions.

SourceComplexity Science Hub·JournalJournal of Dairy Science·TypeData/statistical analysis·DateJul 5, 2024

New study shows the power of social connections to predict hit songs

Researchers at the Complexity Science Hub analyzed friendships and listening habits to find social networks are a crucial predictor of song popularity. The study showed that individuals with strong influence and large friend circles accelerate a song's popularity, making social connections a key factor in music trends.

SourceComplexity Science Hub·JournalScientific Reports·TypeComputational simulation/modeling·DateJun 11, 2024

How do migrants choose their destinations?

A new mathematical model developed by researchers at the Complexity Science Hub shows how diaspora size affects migration flows. The study reveals that people migrate to smaller destinations if their diaspora is present, highlighting the importance of social influence in shaping migration patterns.

SourceComplexity Science Hub·JournalPNAS Nexus·TypeComputational simulation/modeling·DateMay 22, 2024

It’s not a match! Skill mismatch after job loss can have great impact on career

A study published in Research Policy found that job displacement leads to significant heterogeneity in earning losses, ranging from 4% to 16.5%, and is exacerbated by skill mismatch. Workers who switch jobs with reduced skill requirements experience the largest losses, while those upskilling are able to catch up within seven years.

SourceComplexity Science Hub·JournalResearch Policy·TypeData/statistical analysis·DateApr 25, 2024

Which countries are more at risk in the global supply chain?

Researchers analyzed firm-level data from the global supply network, revealing that wealthy nations are only exposed to supply chain disruptions from other high-income countries. Poor and developing nations are disproportionately affected by economic shocks due to their structural embeddedness in their local or national supply chains.

SourceComplexity Science Hub·JournalNature Communications·TypeComputational simulation/modeling·DateApr 19, 2024

Reducing CO2 emissions by 20% with only a 2% economic loss

A new study by the Complexity Science Hub demonstrates how climate policies can be implemented with minimal economic damage. The researchers used a data set from Hungary to examine what would happen if certain companies were forced to cease production in various scenarios aimed at reducing greenhouse gas emissions by 20%.

SourceComplexity Science Hub·JournalNature Sustainability·TypeComputational simulation/modeling·DateApr 15, 2024

Study pulls back the curtain on Supreme Court decision-making

A new study published in Philosophical Transactions of the Royal Society A reveals that Supreme Court decisions are significantly shaped by interactions within the court. The researchers found that justices' decisions result from a complex process of negotiation and influence, rather than personal views or ideological leanings.

SourceComplexity Science Hub·JournalPhilosophical Transactions of the Royal Society A Mathematical Physical and Engineering Sciences·TypeData/statistical analysis·DateMar 19, 2024

Over half of global commutes are by car, says study

According to a new study, around 51% of global commutes are made by car, varying greatly across regions. In contrast, cities like Copenhagen, Paris, and Utrecht rely heavily on cycling and public transportation. The US also shows minimal variation in modal share across cities, with nearly 92% of commutes made by car.

SourceComplexity Science Hub·JournalEnvironment International·TypeComputational simulation/modeling·DateMar 18, 2024

New method to predict medical risks decades ahead

Researchers at the Complexity Science Hub identified key points where disease trajectories diverge, providing clues for early and personalized prevention strategies. The study analyzed hospital stays in Austria between 2003 and 2014 and found correlations between different diseases among different age groups.

SourceComplexity Science Hub·Journalnpj Digital Medicine·TypeData/statistical analysis·DateMar 7, 2024

The race between innovation and obsolescence

Researchers introduce a mathematical model that connects innovation and obsolescence to unify insights across economics, biology, and science. The model reveals three possible scenarios: an ever-expanding scenario, Schumpeterian dystopia, and creation and destruction.

SourceComplexity Science Hub·JournalProceedings of the National Academy of Sciences·TypeComputational simulation/modeling·DateFeb 2, 2024

A better way of measuring homophily

Researchers have developed a new method to measure homophily in social networks, which can accurately capture biases within group interactions. The study found that traditional methods may produce misleading results, particularly in networks with unequal groups and asymmetric mixing.

SourceComplexity Science Hub·JournalScientific Reports·TypeComputational simulation/modeling·DateDec 5, 2023

Data gap in SARS-CoV-2 cases in animals

A recent study by the Complexity Science Hub found that at least two-thirds of animal COVID-19 deaths were not reported to official sources. The researchers compiled a comprehensive list of 35 animal species susceptible to SARS-CoV-2, highlighting the need for improved data exchange and reporting.

SourceComplexity Science Hub·JournalOne Health·TypeData/statistical analysis·DateNov 15, 2023

New scientific methods for analyzing criminal careers

The study analyzed over 1.2 million criminal incidents, revealing that specialists tend to operate within a confined geographic area and collaborate with local networks. The method can help law enforcement agencies anticipate criminal developments and tailor measures for prevention, policing, and rehabilitation.

SourceComplexity Science Hub·JournalScientific Reports·TypeData/statistical analysis·DateNov 13, 2023

What can we learn from the Great Resignation?

A study by the Complexity Science Hub analyzed work discourse on Reddit between 2018 and 2021, finding that mental health concerns significantly contributed to the surge in quit rates. The study suggests that companies can improve working conditions by prioritizing employees' relational and self-fulfillment needs.

SourceComplexity Science Hub·JournalEPJ Data Science·TypeData/statistical analysis·DateOct 12, 2023

Unlocking urban diversity: The magnetism of complex amenities

A study from the Complexity Science Hub reveals that rare shops and services in urban locations can bring people of different socio-economic backgrounds together. Researchers found that neighborhoods offering a range of unique amenities, like zoos or cinemas, tend to attract more diverse audiences. This understanding can inform policy ...

SourceComplexity Science Hub·JournalEPJ Data Science·TypeComputational simulation/modeling·DateSep 18, 2023

Scientists develop method to predict the spread of armed conflicts

Researchers at the Complexity Science Hub developed a mathematical method to analyze armed conflict data, identifying causal links between battles and predicting future conflicts. The approach, inspired by physics and biophysics, reveals how violence spreads like avalanches across Africa and can be applied to other armed conflicts.

SourceComplexity Science Hub·JournalPNAS Nexus·TypeComputational simulation/modeling·DateAug 1, 2023

Malnutrition during pregnancy increases diabetes incidence

Researchers at the Complexity Science Hub found a significant link between malnutrition during pregnancy and an increased risk of type 2 diabetes. The study analyzed data from over 3.5 million people in Austria and found that men born during severe famine periods had a 78% higher incidence rate of new diabetes cases.

SourceComplexity Science Hub·JournalHeliyon·TypeData/statistical analysis·DateJul 20, 2023

Was warfare responsible for the fall of small-scale societies?

Researchers at the Complexity Science Hub found that periodic outbreaks of warfare can account for boom-bust patterns in population dynamics of early farming societies. The study suggests that social conflict played a crucial role in shaping the population dynamics of these societies, contrary to previous assumptions that climate chang...

SourceComplexity Science Hub·JournalScientific Reports·TypeComputational simulation/modeling·DateJun 19, 2023

Bridging traditional economics and econophysics

Researchers from Complexity Science Hub highlight similarities in models used by economists and physicists to analyze financial markets. The study aims to create an overview of these models, promoting interdisciplinary collaboration and avoiding research that gets lost in translation.

SourceComplexity Science Hub·JournalJournal of Economic Interaction and Coordination·TypeSystematic review·DateJun 19, 2023

Indirect effects of the Russia-Ukraine conflict revealed: global food supply at risk

A recent study by the Complexity Science Hub reveals interdependencies in the global food supply chain, uncovering profound indirect effects of the Russia-Ukraine conflict on product availability worldwide. The study found that indirect effects often exceeded direct effects, with losses up to 85% in maize and 89% in edible oils.

SourceComplexity Science Hub·JournalNature Food·TypeComputational simulation/modeling·DateJun 15, 2023

Quotas alone will not solve the problem

A new study by the Complexity Science Hub recommends aligning quotas with an inclusive culture to improve women's representation in science. The research finds that even extreme quotas are not sufficient to increase minorities' visibility in top ranks, highlighting the need for behavioral interventions and regulation to overcome biases.

SourceComplexity Science Hub·JournalCommunications Physics·TypeComputational simulation/modeling·DateMay 25, 2023

Scientists create high-resolution poverty maps using big data

A team of researchers from the Complexity Science Hub and Central European University created more-detailed poverty maps for Sierra Leone and Uganda, identifying poor areas with greater accuracy. The maps use a combination of survey information, satellite imagery, and social media data to provide a more accurate picture of wealth distr...

SourceComplexity Science Hub·TypeComputational simulation/modeling·DateApr 30, 2023

How countries can benefit from linking data

A recent study analyzed data from 41,516 refugees and 207,729 Swedish-born individuals to investigate the impact of mental and somatic illnesses on labor market integration. The study found that multimorbidity poses a significant risk for unemployment among young refugees, highlighting the need for targeted public health actions.

SourceComplexity Science Hub·JournalFrontiers in Public Health·TypeData/statistical analysis·DateMar 16, 2023

A new and better way to create word lists

Researchers at the Complexity Science Hub have developed an algorithm that can be applied to different languages and expand word lists significantly better than others. The new method, called LEXpander, outperforms previous algorithms in German and English, especially in sentiment analysis tasks.

SourceComplexity Science Hub·JournalBehavior Research Methods·TypeData/statistical analysis·DateMar 13, 2023

How to predict city traffic

A new machine learning model can predict city traffic activity in different zones of cities, enabling targeted responses from policymakers. Understanding people's mobility patterns is crucial for improving urban traffic flow, and the model provides insights into urban interactions.

SourceComplexity Science Hub·JournalScientific Reports·TypeComputational simulation/modeling·DateFeb 28, 2023

Predicting human group sizes with physics

Researchers at Complexity Science Hub developed a model using physics principles to predict group sizes in humans. By analyzing social stress and homophily, they found that group sizes can be predicted with relatively small information, revealing new insights into human behavior.

SourceComplexity Science Hub·JournalPhysical Review·TypeData/statistical analysis·DateJan 30, 2023

Try to be a pioneer

Researchers found no evidence of a critical mass needed to start and maintain new research fields. Instead, pioneering regions with early investment can establish dominance. However, late-comers face significant costs to catch up, as seen in China's semiconductor science, where strategic interventions over decades led to a dominant role.

SourceComplexity Science Hub·JournalChaos Solitons & Fractals·TypeData/statistical analysis·DateDec 29, 2022

Of mice and men

Researchers from Complexity Science Hub and Medical University of Vienna found that high doses of cholesterol-lowering statins impair bone quality in mice, with a significant increase in osteoporosis risk. The study confirms previous findings on the correlation between statin use and osteoporosis diagnosis in humans.

SourceComplexity Science Hub·JournalBiomedicine & Pharmacotherapy·TypeExperimental study·DateDec 18, 2022

Cryptoassets: New evidence shows that nested financial services could cause domino effects

A new algorithm unravels the structure of financial services on the Ethereum blockchain, revealing highly intertwined structures that involve risks not yet fully understood. The findings highlight the need for transparency and awareness among users, regulators, and policymakers to mitigate systemic risks associated with cryptoassets.

SourceComplexity Science Hub·JournalACM Transactions on the Web·TypeData/statistical analysis·DateNov 28, 2022

Yes, we can!

A study by physicists Fariba Karimi and her team has confirmed that women are underrepresented in physics, but found that the gender gap is largely due to a first-mover advantage enjoyed by men. The research suggests that women face higher entry barriers and structural inequalities, leading to differences in citation recognition.

SourceComplexity Science Hub·JournalCommunications Physics·TypeData/statistical analysis·DateOct 13, 2022

Predicting the economic downturn during the pandemic

An international team of scientists developed a computer simulation to predict the economic impact of the Covid-19 pandemic. The model accurately forecasted the UK's GDP contraction and tracked relevant economic variables on both individual industries and the entire economy.

SourceComplexity Science Hub·JournalJournal of Economic Dynamics and Control·TypeComputational simulation/modeling·DateOct 10, 2022