Friday, April 04, 2025

 

Goethe University acquires two new DFG research groups


Research unit focuses on power and abuse in the church / Second funding phase of the center for advanced studies on polycentricity and plurality of premodern christianities




Goethe University Frankfurt





FRANKFURT. How do power and abuse develop, particularly within the Catholic Church? What defines this power, and how does it function? These questions have long been a research focus at Goethe University’s Faculty of Roman Catholic Theology. An interdisciplinary research team will now intensify its work on this topic with additional support: The German Research Foundation (Deutsche Forschungsgemeinschaft, DFG) has approved the research unit “Power and Abuse in the Roman Catholic Church – Interdisciplinary Critique and Analysis” which brings together experts from theology, religious studies, philosophy of religion, law, and educational sciences. The group is led by Prof. Anja Middelbeck-Varwick, a religious studies scholar and Catholic theologian. “The issue of power and powerlessness in the Church has gained particular urgency due to the countless cases of abuse that have come to light in Germany since 2010. That is why this topic has been a major focus for our faculty. As an interdisciplinary research unit, we now have even greater strength and focus to address these issues – something we are very pleased about,” she says.

The researchers approach the topic from various disciplinary perspectives, structured into three clusters: (1) Vulnerability and Systemic Conditions – examining the factors that make individuals and institutions susceptible to abuse; (2) Orders and Structures of Power – investigating institutional power dynamics; and (3) Theological Foundations of Power Imbalances and Abuse – analyzing underlying legal frameworks and thought structures that may enable or reinforce abuse. Questions revolve around what typical perpetrator-victim structures look like and what factors contribute to their becoming taboo or being covered up. The project also aims to apply its findings beyond the Church, contributing to broader efforts to combat and prevent abuse. The unit’s members include Prof. Sabine Andresen (education specialist and former chair of Germany’s Independent Commission for Child Sexual Abuse Issues), Prof. Ute Sacksofsky (constitutional law expert), and Prof. Christoph Mandry (ethics scholar). The research will initially be funded for four years, with the possibility of a four-year extension.

Follow-up funding for Center for Advanced Studies in Humanities and Social Sciences

The Center for Advanced Studies “Polycentricity and Plurality of Premodern Christianities”, first launched during the COVID-19 pandemic in 2020, will continue its work. The Center explores the diversity of Christian groups up to the eighteenth century. Traditionally, historical research has projected the highly centralized church structures of the nineteenth century onto earlier periods, neglecting the actual complexity of premodern Christianity. Terms such as “confession“ or “church” do not fully capture the reality of these historical Christian communities, hence the introduction of the term “Christianities.” Unlike institutionalized churches, these Christianities are seen as interactive communities that defined themselves through their connection to Jesus Christ while maintaining identities distinct from other groups. These communities evolved dynamically, sometimes alongside or in opposition to formal church structures, which incidentally also grew out of these communities. Religious centers developed at times outside well-known church centers.

The first phase of funding has already produced several publications. In 2022, the Center welcomed displaced historians from Ukraine. Initially, they were funded through the Center’s own resources, later with the support of the Gerda Henkel Foundation, and eventually as DFG Fellows. “These colleagues are a tremendous enrichment to our research. Ukraine has historically had a remarkable religious diversity. Before the Russian full-scale invasion, we had planned a research trip to the region. We hope that our collaboration will lead to lasting research partnerships with Ukrainian scholars,” says Prof. Birgit Emich, an early modern historian and spokesperson for the Center. For the second phase, Prof. Hartmut Leppin, a scholar of early Christianity, will join the project. This next stage will involve external experts in the completion of a three-volume compendium, which will offer insights into the religious and social practices of the time. More details can be found at: https://www.poly-unifrankfurt.de/.

”I am very pleased about both funding approvals – the Research Unit and the Center for Advanced Studies in Humanities and Social Science research at Goethe University holds great potential, which will now gain even more momentum and visibility. These two programs promise entirely new perspectives, both in terms of the past and the future of our society,” says Prof. Bernhard BrĂ¼ne, Vice President Research at Goethe University.

Research Units and Centers for Advanced Studies in Humanities and Social Sciences

Funded by the German Research Foundation (Deutsche Forschungsgemeinschaft, DFG), Research Units (Forschungsgruppen) consist of small teams of scholars working together on a specific research question that cannot be solved individually. The funding program has existed since 1962 and was called Forschergruppe until 2018. It particularly aims to support international and interdisciplinary collaboration among researchers as well as early-career academics.

Centers for Advanced Studies in Humanities and Social Sciences (Kolleg-Forschungsgruppen) are a DFG funding program specifically designed for research in the humanities and social sciences. These centers bring together distinguished scholars to advance a specific research topic at a single location. The chosen topic should correspond with local research strengths and provide a framework for integrating individual research ideas. “Polycentricity and Plurality” is currently Goethe University’s only Center for Advanced Studies in Humanities and Social Sciences.

 

‘Making memories’ via social media is increasingly “crucial” part of live events



Cambridge University Press



Eventgoers’ live experiences are shaped by media technologies like social media, whether used in the moment or not, and memory and anticipation are increasingly part of live experiences themselves, research published in Cambridge University Press journal Memory, Mind & Media has found.

Researcher Esther Hammelburg of the Amsterdam University of Applied Sciences studied how eventgoers used media technologies at three large cultural events in the Netherlands: Oerol Festival, 3FM Serious Request and Pride Amsterdam. Their media technology use included taking photos, making videos, and in-the-moment sharing of content on social media platforms – actions that will become newly visible, with summer music festivals around the corner.

Hammelburg also interviewed 379 eventgoers.

“My interviewees tell me that they already know beforehand what their Instagram post from the event could look like,” she says.

This means that live media practices at events are shaped by a twofold anticipation: that of the live experience, and that of the future memory of the live experience. Anticipated nostalgia informs how the eventgoer understands themselves as part of the event and the event as part of their life story.

“The way people I interviewed described using their smartphones suggests that when they are at events, they are subconsciously always thinking about what would be the best, truest, or fullest way for them to experience and to remember these occasions,” Hammelburg adds.

“They don’t just carry their phones – they also carry ideas they’ve established in advance of potential photos, posts, and stories they could share. These ideas are shaped by the multitude of images that they have seen before of the events that they are attending.”

Hammelburg notes that live events, such as festivals and parades, are inextricably connected to memory: strong live experiences are memorable, distinct instants that stand out from daily occurrences. Eventgoers enter organised live events anticipating intense in-the-moment experiences that will become fond memories. They also visualise these events through photographs and videos, which they share through various social media platforms and apps.

In search of special moments

When asked about why they take photos and videos at events, Hammelburg’s interviewees consistently emphasised a desire to capture moments that are extraordinary and memorable. As one interviewee at Pride, 25-year-old Kyle, said: “It is a special moment to be here.”

Hammelburg comments that this seemingly obvious observation led her to question how live instances are figured by eventgoers as special moments.

“Live instances are memorable moments: noticeable experiences that are singled out because they will be commemorated as an event that stands out from the everyday. These instances become part of the narratives that eventgoers construct of their own lives, which intersect with communal narratives of the event.

“These are the moments that people anticipate and that will become their memories.”

Festivals and cultural events are also well-placed to contribute to this creation of memories, as they are in fact created to be extraordinary moments. Eventgoers are also aware that they are involved in the construction of such events as special moments. 

Hammelburg consequently argues that eventgoers are involved in live storytelling practices and that, through their live media practices at events, they construct narratives that position them in time, most often for the eyes of others.

 

Bar-Ilan University researchers develop AI model to predict lightning-induced wildfires with unprecedented accuracy




Bar-Ilan University





A groundbreaking new artificial intelligence (AI) model developed by Israeli researchers promises to revolutionize wildfire prediction, with a particular focus on lightning-induced blazes that are growing increasingly common due to climate change. The new AI model can predict where and when lightning strikes are most likely to cause wildfires, achieving over 90% accuracy—a first in wildfire forecasting.

Dr. Oren Glickman and Dr. Assaf Shmuel from the Department of Computer Science at Bar-Ilan University, in collaboration with experts from Ariel and Tel Aviv Universities, utilized seven years of high-resolution global satellite data, alongside detailed environmental factors like vegetation, weather patterns, and topography, to map and predict lightning-induced wildfire risks on a global scale. Their research was recently published in Scientific Reports.

What makes the research by Dr. Glickman, Dr. Shmuel, and their colleagues so significant is their ability to predict lightning-induced wildfires with remarkable precision. The AI model outperforms traditional fire danger indices by taking a global, data-driven approach. It integrates data from satellites, weather systems, and environmental factors to assess the likelihood of lightning-induced fires, overcoming the limitations of regional and data-restricted models.

The model was rigorously tested using wildfire data from 2021 and showed an unprecedented accuracy rate of over 90%, a level of precision that could transform emergency response and disaster management worldwide.

As climate change accelerates, extreme weather events—such as lightning storms, hot and dry conditions, and shifting ecosystems—are contributing to more frequent and intense wildfires. While human activity is often responsible for igniting many fires, lightning remains one of the most unpredictable and deadly causes, particularly in remote regions. These fires can smolder undetected for days, only to erupt into uncontrollable infernos before firefighters can respond. The catastrophic wildfires that ravaged Northern California in August 2020 were sparked by lightning strikes, burning more than 1.5 million acres and claiming dozens of lives.

With an improved ability to predict lightning fires, meteorological services, fire departments, and emergency planners can respond earlier, smarter, and more effectively—potentially saving lives and protecting ecosystems. This model also addresses a key gap in existing wildfire prediction models: while many models are effective for fires caused by human activity, they struggle to predict lightning-induced fires, which behave very differently and often start in hard-to-reach areas.

While the AI model is not yet integrated into real-time forecasting systems, its development marks a critical step forward in wildfire prediction. As Dr. Shmuel notes, “With the growing implications of climate change, new modeling tools are required to better understand and predict its impacts; machine learning holds significant potential to enhance these efforts.”

The new machine learning models developed by the team have the potential to predict lightning-ignited wildfires worldwide, offering a powerful tool for fire mitigation and response. With an ever-increasing risk of wildfires driven by climate change, early detection and prediction are essential for protecting forests, wildlife, and human communities from the devastating effects of these fires.

“We are at a critical moment in understanding the complexities of wildfire ignitions,” said Dr. Glickman, from Bar-Ilan University’s Department of Computer Science.  “Machine learning offers the potential to revolutionize how we predict and respond to lightning-ignited wildfires, providing insights that could save lives and preserve ecosystems.”

 

 

Common phrases, not fancy words, make you sound more fluent in a foreign language



Researchers found that using everyday phrasal expressions boosts fluency perception more than rare phrases in foreign language speech



Waseda University

The Secret to Sounding Fluent: Use Common Phrases, Not Fancy Words 

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Using familiar phrases naturally in speech can make you sound more fluent than using complex words.

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Credit: Kotaro Takizawa, Waseda University, Japan




Language learners often assume that using rare, complex vocabulary will make their speech sound more fluent. Research suggests that there is a close relationship between formulaic expression usage in speech and acoustic features of oral fluency. This implies that using formulaic expressions leads to faster articulation speed and fewer disruptions during speech. However, in terms of how listeners perceive speakers’ fluency, the role of formulaic expressions has been unclear.

To investigate this, Ph.D. student, Kotaro Takizawa and Research Assistant Professor Shungo Suzuki from Waseda University, Japan, analyzed speech from 102 Japanese speakers of English, each delivering an argumentative speech. They measured the use of bigram and trigram expressions (two- and three-word sequences) and had fluency judged by 10 experienced raters. The study controlled for key fluency metrics, including articulation rate, pauses, and self-corrections, to isolate the effect of formulaic expressions on fluency perception. This study was published online in the journal Studies in Second Language Acquisition on February 12, 2025.

The findings revealed that utterance fluency (smoothness of speech delivery) was the strongest predictor of fluency perception, accounting for 61% of the variance in ratings. However, high-frequency formulaic expressions added an extra 0.8% to fluency judgments, while rarer, more complex phrases had little to no effect.

The study also reveals that the key to sounding fluent is not about using sophisticated words; it is about using the right phrases. Their study shows that common, everyday expressions have a small but significant impact on how fluency is perceived, even when a factor like smoothness is accounted for. "We found that common, oft-used formulaic expressions, rather than rare, sophisticated ones, significantly influenced rater judgment of speakers’ fluency," said Takizawa.

Fluency plays a crucial role in language learning and assessment, especially in standardized tests like TOEFL and IELTS, where expert raters evaluate how natural and smooth a speaker sounds. Traditionally, fluency has been associated with speed and uninterrupted speech, but the role of formulaic expressions (common multi-word phrases) has been less clear. Previous studies suggested that these expressions help speakers communicate more smoothly, but few have examined how they influence fluency perception on their own.

Suzuki highlighted the practical implications: "It is generally observed that language teachers and learners tend to focus more on rare words or difficult phrases that sound more proficient. However, the current findings indicate that that should not necessarily be the focus, particularly if they want to improve their fluency perceived by others."

This research suggests that learners should shift their focus from advanced vocabulary to mastering everyday phrases that come naturally in conversation. For example, instead of saying "I agree the idea"—which sounds unnatural—learners should use "I agree with the idea." These common expressions are easy to find in textbooks and everyday conversations, making them more accessible for learners of all levels.

The study has significant implications for language testing, where fluency judgments can impact scores. It suggests that test-takers should focus on integrating natural phrasal expressions into their speech while maintaining the smoothness of their speechHighlighting the importance of both aspects, "Our research shows that there is no denying that improving fluency in utterance contributes to good fluency judgment scores," noted Takizawa.

This study highlights the crucial role of common expressions in shaping how fluency is perceived, offering valuable insights for language learners and educators.

 

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Reference

DOI: https://doi.org/10.1017/S0272263125000051


Authors: Kotaro Takizawa1, Shungo Suzuki2

 

 

Affiliations
1Graduate School of Education, Waseda University, Japan

2Green Computing Systems Research Organization, Waseda University, Japan

 

About Waseda University
Located in the heart of Tokyo, Waseda University is a leading private research university that has long been dedicated to academic excellence, innovative research, and civic engagement at both the local and global levels since 1882. The University has produced many changemakers in its history, including nine prime ministers and many leaders in business, science and technology, literature, sports, and film. Waseda has strong collaborations with overseas research institutions and is committed to advancing cutting-edge research and developing leaders who can contribute to the resolution of complex, global social issues. The University has set a target of achieving a zero-carbon campus by 2032, in line with the Sustainable Development Goals (SDGs) adopted by the United Nations in 2015. 

To learn more about Waseda University, visit https://www.waseda.jp/top/en  

 

About Kotaro Takizawa
Kotaro Takizawa is a Ph.D. student at Waseda University's Graduate School of Education. He earned his B.A. (2019) and M.A. (2021) in Education from the same institution. His research focuses on second language acquisition, particularly the relationship between oral fluency and formulaic language. Currently, he is a Research Fellow at the Japan Society for the Promotion of Science (2023–2025).

 

Long-term measurements reveal cloud sensitivity to changes in atmospheric aerosol concentrations


University of Eastern Finland
Puijo Tower. 

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Puijo Tower.

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Credit: Photo: Wille Markkanen.




An international study led by the University of Eastern Finland and the Finnish Meteorological Institute has demonstrated that the formation and properties of lower-atmosphere clouds are highly sensitive to changes in atmospheric aerosol concentrations. This finding is significant as it impacts the assessment of how much human-induced fine particles have slowed down climate warming caused by greenhouse gases. The study was published in the prestigious Nature Geoscience journal.

Long-term measurements of atmospheric aerosol concentrations and cloud properties at ACTRIS measurement stations in Svalbard and Finland (at the Puijo Tower in Kuopio and in Pallas) revealed that clouds are more sensitive to aerosol changes than previously thought. Long-term observational time series on both aerosol and cloud properties are very limited. Since cloud properties vary greatly, long-term measurements are needed to determine how aerosols influence clouds.

"Emissions of anthropogenic fine particles have cooled the climate by modifying cloud properties and have thus partly counteracted greenhouse gas-induced climate warming. Based on these results, this cooling effect is at the upper end of previous estimates based on satellite data," says Professor Annele Virtanen from the University of Eastern Finland.

The study also evaluated the ability of climate models to describe the relationship between cloud properties and aerosol concentrations. Comparing models with observations revealed issues in how key processes are represented in the models. Additionally, the study identified significant differences between models in their predicted interactions between aerosols and clouds.

"These findings will help us develop more accurate climate models to predict future climate change. These models play a key role in assessing the climate impacts of different emission scenarios," says Research Professor Sami Romakkaniemi from the Finnish Meteorological Institute.

The study, led by the University of Eastern Finland and the Finnish Meteorological Institute, was the result of extensive European collaboration and involved several key European research institutions and universities.

 

Tired jackdaws sleep more deeply



Sleep-deprived European jackdaws trade vigilance for deep sleep




Max-Planck-Gesellschaft

Drawing of a jackdaw and different brains 

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Sleep-deprived jackdaws spent more time in deep, symmetrical sleep – especially early in the night, when the need to recover is greatest.

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Credit: MPI for Biological Intelligence/ Julia Kuhl




As most people who have pulled an all-nighter will agree, lost sleep can leave us feeling foggy and far from our best. In some ways, birds respond similarly, often sleeping longer and more deeply after sleep loss. But unlike humans, birds can sleep with one eye open, keeping one half of the brain somewhat alert while the other sleeps deeply. This balance between vigilance and deep sleep helps them stay aware of danger while still getting some much-needed shut-eye.

However, a new study of European jackdaws shows that this strategy has its limits: when sleep-deprived, these clever, social birds were more likely to fall into deep sleep in both brain halves – even at the cost of losing vigilance. The findings offer new insight into sleep and the consequences of going without it.

Keeping an eye out

Sleep is essential across the animal kingdom, but there is wide variation in how it happens. When humans sleep, our brains cycle through stages, alternating between rapid eye movement (REM) sleep and non-REM sleep roughly every 90 minutes. Birds go through these same stages, but typically in much shorter bursts – and their sleep patterns are far more flexible than ours. One weapon in their sleep armory is the ability to sleep with one eye open during non-REM sleep, a state known as asymmetric sleep. This is characterized by light sleep in the brain half connected to the open eye and deep sleep in the brain half connected to the closed eye. It allows birds, such as ducks, to keep one side of the brain more alert while the other enters a deeper state of sleep.

Non-REM sleep is thought to play a key role in memory consolidation and clearing waste from the brain. However, recharging one brain hemisphere with one eye open takes longer than resting both sides together in deep, symmetrical sleep. Scientists are still uncovering when, how, and why birds rely on this nap-time balancing act.

Adaptive sleep strategies

The new study of European jackdaws, led by researchers at the Max Planck Institute for Biological Intelligence and the Groningen Institute for Evolutionary Life Sciences, reveals a trade-off between getting sleep and staying alert. Previous studies have shown how birds and some other animals use adaptable, vigilant sleep strategies to stay alert in challenging situations – from great frigatebirds sleeping asymmetrically mid-flight, to mallard ducks keeping one eye open when vulnerable on the outer edge of their group, to northern fur seals sleeping asymmetrically when in the water. Even humans – who do not sleep with one eye open – tend to sleep more lightly with the left half of the brain on the first night in a new environment.

This new research reveals where such strategies fall short: sleep-deprived jackdaws spent more time in deep, symmetrical sleep, while asymmetric sleep became less common – especially early in the night, when the need to recover is greatest. “Sleep is a dangerous part of life for many animals, as it leaves them exposed to all kinds of risks,” says Niels Rattenborg, group leader at the Max Planck Institute for Biological Intelligence. “Some birds can function surprisingly well on far less sleep than we can, but even that strategy appears to have its limits. We have found that when they’re tired, jackdaws are more likely to sleep deeply – even if that means becoming more vulnerable. Observing how birds navigate the trade-off between vigilance and sleep may help us better understand sleep in general.”

Tracking tiredness

To investigate how European jackdaws recover from sleep loss – and how they switch between symmetric and asymmetric sleep – researchers studied nine birds using electroencephalograms (EEGs), which measure the activity of millions of neurons across the brain.

The researchers found that some brain areas slept more deeply than others, which may suggest that regions used more during wakefulness need deeper sleep. For example, not all parts of the jackdaws’ brains responded to sleep loss in the same way. Regions involved in vision and decision-making showed stronger signals after sleep deprivation, while others, like the memory-related hippocampus, were less affected.

“Our findings reveal that even the highly flexible sleep strategies used by jackdaws have limits,” says Peter Meerlo, a group leader at the Groningen Institute for Evolutionary Life Sciences. “That tells us something fundamental about sleep: it’s not just a passive state, but a behavior shaped by both evolution and environmental demands. The study offers a fresh perspective on how animals balance the need for sleep with the risk of predation or other threats – and could help us better understand how sleep loss affects brain function more broadly, including in humans.”