As social media platforms like Instagram, Snapchat, TikTok and others continue to grow in popularity, adolescents are spending more of their time online navigating a complex virtual world. New research suggests that these increased hours spent online may be associated with cyberbullying behaviors. According to a study by the University of Georgia, higher social media addiction scores, more hours spent online, and identifying as male significantly predicted cyberbullying perpetration in adolescents. "There are some people who engage in cyberbullying online because of the anonymity and the fact that there's no retaliation," said Amanda Giordano, principal investigator of the study and associate professor in the UGA Mary Frances Early College of Education. "You have these ...

Math's top prize, the Fields Medal, has succeeded in making mathematics more inclusive but still rewards elitism, according to a Dartmouth study. Published in Nature's END ...

Researchers at the Johns Hopkins Kimmel Cancer Center used machine learning techniques to detect mutational signatures in cancer patients. Their algorithm outperformed the current standard of analysis and revealed new mutational signatures associated with obesity, which is believed by cancer prevention experts to be becoming the most significant lifestyle factor contributing to cancer in the U.S. and most of the Western world. The study was published in the Jan. 25 issue of the journal eLife. "Mutational signatures are important in current cancer research as they enable you to see the signs left by underlying factors, such as aging, smoking, alcohol use, UV exposure, and BRCA inherited mutations that contribute to the development ...

Making people fear the coronavirus may motivate us to wash our hands, keep our distance and wear a face mask. But fear also takes a heavy toll on our mental health and is fertile ground for discrimination and prejudice. New research shows a different path. When the coronavirus pandemic hit the world in the spring of 2020, feelings of being capable or efficacious against the virus were a key factor in driving compliance with the authorities' guidelines. This is the result of a new study based on large surveys across eight Western democracies, published in British Journal of Health Psychology. The extent to which we personally felt informed and capable of acting clearly affected the extent of our behaviour to prevent infection, e.g. by keeping our distance ...

A team of researchers at the Technical University of Munich (TUM) has developed a new early warning system for vehicles that uses artificial intelligence to learn from thousands of real traffic situations. A study of the system was carried out in cooperation with the BMW Group. The results show that, if used in today's self-driving vehicles, it can warn seven seconds in advance against potentially critical situations that the cars cannot handle alone - with over 85% accuracy. To make self-driving cars safe in the future, development efforts often rely on sophisticated models aimed at giving cars the ability to analyze the behavior of all traffic participants. But what happens if the models are not yet capable of handling some complex ...

Drinking beetroot juice promotes a mix of mouth bacteria associated with healthier blood vessels and brain function, according to a new study of people aged 70-80. Beetroot - and other foods including lettuce, spinach and celery - are rich in inorganic nitrate, and many oral bacteria play a role in turning nitrate to nitric oxide, which helps to regulate blood vessels and neurotransmission (chemical messages in the brain). Older people tend to have lower nitric oxide production, and this is associated with poorer vascular (blood vessel) and cognitive (brain) health. In the new study, by the University of Exeter, 26 healthy older people took part in two ten-day supplementation periods: one with nitrate-rich ...

Increasing numbers of people in Belgium are turning away from meat in favour of plant-based alternatives, according to new research from psychologists at the University of Bath, in collaboration with Belgian animal welfare organisation GAIA. New analysis finds that in 2020, over half of Belgians (51%) were 'satisfied' with meat alternatives - a figure that has increased from 44% since 2019. The results of the research which gauged responses from a representative sample of 1,000 people in Belgium over two years (in 2019 and 2020) highlights concerns around animal agriculture and the environment that are impacting individuals' dietary choices. Additional findings from ...

Computer scientists at the University of Surrey have created a ground-breaking model that could improve our understanding of developmental disorders such as autism. Scientists have long tried to better understand how the cerebral cortex and its layers develop, with pathologies such as autism, schizophrenia and epilepsy linked to this process. In a paper published by the journal Cerebral Cortex, scientists from Surrey, Newcastle University, and Nottingham University detail how they developed and used a computational model to simulate cell division, cell migration and apoptosis (cell death) in the hope of understanding how these processes affect the development of the brain. With the help of their computer model, the ...

A study examining bean productivity among smallholder farmers in Tanzania, has found that on average, yields are 6% lower among female than male farmers. Women are often 'invisible' in agriculture, researchers say, due to social structural barriers and national agricultural policies, which do not address discriminatory land rights; education and agricultural information and decision making, which must be tackled to reverse this trend. The paper 'What Does Gender Yield Gap Tell Us about Smallholder Farming in Developing Countries?' published in the open access scientific journal Multidisciplinary Digital Publishing (MDPI), analyzed data from southern region in Tanzania since 2016 and also drew on research ...

'A transmissible cancer was first discovered in dogs in the middle of the 19th century. It is transmitted sexually from a sick dog to a healthy one, the cancer cells themselves being the infective agent. In the 1990s, a contagious cancer was discovered in the Tasmanian devil. Since the cancer was found in only two species of mammals, scientists used to think that it is quite rare in the nature. However, time has come to reconsider this view. A transmissible cancer appears to be fairly widespread among bivalve molluscs,' says Maria Skazina, a research associate at the ...

DALLAS - March 30, 2021 - UT Southwestern researchers have identified factors that put patients with childhood-onset lupus at elevated risk for poor outcomes, such as end-stage renal disease or death, as they transition from pediatric to adult health care. The findings, published online in Seminars in Arthritis and Rheumatism, emphasize the precarious nature of this period and shine a spotlight on areas prime for intervention to help protect these vulnerable patients. Patients with chronic diseases that used to be fatal early in life now often survive to live long lives. However, says study senior author END ...

Babies can recognise combinations of words even before they have uttered their first word, a study suggests, challenging ideas of how children learn language. Assessments in 11-12 month-olds show that infants at the cusp of talking are already processing multiword phrases such as 'clap your hands'. Researchers say the study is the first to provide evidence that young children can pick up and understand multiword sequences before they can talk or begin producing such combinations themselves. The findings suggest that babies learn individual words and more complex phrases at the same time, which challenges the perspective that they progress from single words to phrases and sentences, experts say. It may also explain why adults who learn a new language in later life ...

The first online advertisement was a banner for AT&T that appeared on the HotWired.com website in 1994, when there were just 30 million internet users worldwide. Today, 57% of the world's population has access to the internet and advertising technology has advanced to the point that by 2018 the digital advertising market in Europe alone was worth 55 billion euros. Of this amount, 16.8 billion euros is accounted for by programmatic advertising, which uses artificial intelligence to automate much of the buying and selling of internet advertising. A new report, published by Open Evidence, a ...

Water quality management in the ocean often targets visible pollution sources such as sewage, rivers or ships. A new global study, led by researchers at the University of Gothenburg, reveals that invisible groundwater discharges may be just as important driving nitrogen into coastal waters. As we enter the United Nations' Decade of the Oceans, a new research study shed light on an often overlooked source of impact on the coastal ecosystems. The study, which examined groundwater discharges at more than 200 locations worldwide, showed that groundwater is the major source of nitrogen and phosphorus to the ocean at many locations, including some areas in the Baltic Sea. "Groundwater is essentially invisible and difficult to investigate. That ...

In order to enable large-scale hydrogen production using solar energy, particulate photocatalysts are being researched as a simple and cost-effective solution to splitting water into hydrogen and oxygen. It is necessary to develop a photocatalyst that can efficiently use visible light, which accounts for a large part of solar energy, in the water decomposition reaction. Barium tantalum oxynitride (BaTaO2N) is an oxynitride semiconductor material that absorbs visible light up to 650 nm and has a band structure capable of decomposing water into hydrogen and oxygen. Until very recently, it had not been possible to load BaTaO2N granules with co-catalyst fine particles, which are reaction ...

Female doctors who suffer domestic abuse can feel unable to get help due to perceptions that it "should not happen to a doctor" and a judgemental culture in medical settings, a new study suggests. Victim-survivors who work as doctors often do not feel able to talk about abuse confidentially and fear the consequences of reporting it. Researchers from the University of Southampton interviewed twenty-one female doctors who had previously left an abusive relationship about their experience of domestic abuse, barriers they faced when seeking help, and the impact on their work. The findings have been published in the British Journal of General Practice. Dr Emily Donovan, who led the study from the University of Southampton's Primary Care Research Centre said: "Domestic ...

Education is considered one of the most critical personal capital investments. But formal educational attainment doesn't necessarily pay off in job satisfaction, according to new research from the University of Notre Dame. In fact, there is almost no relationship between the two, according to "Does Educational Attainment Promote Job Satisfaction? The Bittersweet Trade-offs Between Job Resources, Demands and Stress," forthcoming in the Journal of Applied Psychology from Brittany Solomon (Hall), assistant professor of management, and Dean Shepherd, the Ray and Milann Siegfried ...

Researchers at Cincinnati Children's Hospital Medical Center have developed a new framework for different factors influencing how a child's brain is "wired" to learn to read before kindergarten. This may help pediatric providers identify risks when the brain is most responsive to experiences and interventions. This "eco-bio-developmental" model of emergent literacy, described in the journal JAMA Pediatrics, reinforces the potential of early screening, prevention, and intervention during pediatric clinic visits in early childhood. This kind of model is advocated by the American Academy ...

Remote monitoring using airborne devices such as drones or satellites could revolutionise the effectiveness of nature-based solutions (NBS) that protect communities from devastating natural hazards such as floods, storms and landslides, say climate change experts from the University of Surrey. Grey structural measures (a collective term for engineering projects that use concrete and steel) like floodgates, dams, dikes and sea walls are still the most common methods to guard against natural hazards. However, these 'grey measures' are expensive and lack the long-term flexibility and sustainability needed to help communities manage their growing population and address the planet's ongoing struggle against urbanisation ...

Scientists have discovered that tracking malaria as it develops in humans is a powerful way to detect how the malaria parasite causes a range of infection outcomes in its host. The study, found some remarkable differences in the way individuals respond to malaria and raises fresh questions in the quest to understand and defeat the deadly disease. Malaria, caused by the parasite - Plasmodium falciparum - is a huge threat to adults and children in the developing world. Each year, around half a million people die from the disease and another 250 million are infected. Malaria parasites are spread to humans through the bites of infected mosquitoes. The outcomes that follow a malaria infection can vary from no symptoms to life-threatening ...

A team of scientists has been using DESY's X-ray source PETRA III to analyse the structural changes that take place in an egg when you cook it. The work reveals how the proteins in the white of a chicken egg unfold and cross-link with each other to form a solid structure when heated. Their innovative method can be of interest to the food industry as well as to the broad field of research surrounding protein analysis. The cooperation of two groups, headed by Frank Schreiber from the University of Tübingen and Christian Gutt from the University of Siegen, with scientists at DESY and European XFEL reports the research in two articles in the journal Physical Review Letters. Eggs are among the most versatile food ingredients. They can take the form of a gel or ...

Adding the nutrient selenium to diets protects against obesity and provides metabolic benefits to mice, according to a study published today in eLife. The results could lead to interventions that reproduce many of the anti-aging effects associated with dietary restriction while also allowing people to eat as normal. Several types of diet have been shown to increase healthspan - that is, the period of healthy lifespan. One of the proven methods of increasing healthspan in many organisms, including non-human mammals, is to restrict dietary intake of an amino acid ...

Humans are creating or exacerbating the environmental conditions that could lead to further pandemics, new University of Sydney research finds. Modelling from the Sydney School of Veterinary Science suggests pressure on ecosystems, climate change and economic development are key factors associated with the diversification of pathogens (disease-causing agents, like viruses and bacteria). This has potential to lead to disease outbreaks. The research, by Dr Balbir B Singh, Professor Michael Ward, and Associate Professor Navneet Dhand, is published in the international journal, Transboundary and Emerging Diseases. They found a greater diversity ...

Superconductivity is known to be easily destroyed by strong magnetic fields. NIMS, Osaka University and Hokkaido University have jointly discovered that a superconductor with atomic-scale thickness can retain its superconductivity even when a strong magnetic field is applied to it. The team has also identified a new mechanism behind this phenomenon. These results may facilitate the development of superconducting materials resistant to magnetic fields and topological superconductors composed of superconducting and magnetic materials. Superconductivity has been used in various technologies, such as magnetic resonance imaging (MRI) and ...

Sumitomo Rubber Industries, Ltd (SRI) and Tohoku University teamed up to increase the speed of 4-Dimensional Computed Tomography (4D-CT) a thousand-fold, making it possible to observe rubber failure in tires in real-time. This breakthrough will accelerate the development of new tire materials to provide super wear resistance, greater environmental friendliness, and longer service life. It will also aid significantly in the advancement of smart tires. SRI initially developed 4D-CT as part of the ADVANCED 4D NANO DESIGN, a new materials development technology unveiled in 2015 that enables highly accurate analysis and simulation of the rubber's internal structure from the micro to nanoscale. This analysis ultimately ...