Новости за 15.04.2024

A team of researchers has unveiled a novel approach to accurately characterizing tree height composition in forests using the Global Ecosystem Dynamics Investigation (GEDI) Light Detection and Ranging (LiDAR) technology. This study marks a significant advancement in our understanding of forest ecosystems, shedding light on the intricacies of tree height variability and their implications for ecological studies and climate change mitigation efforts.

The field of bone tissue engineering (BTE) is a promising avenue for addressing bone injuries and defects by constructing artificial scaffolds with bionic functionalities. Due to its unique 3D network structure, impressive mechanical properties, and excellent biocompatibility, bacterial cellulose (BC) has emerged as a captivating area of research in the realm of scaffold fabrication.

Researchers from Western University developed techniques for creating images from old, badly tarnished photographs. These techniques could also be used to study other historic artifacts and fossils and prevent corrosion in modern materials.

Bumblebees appear to be quite resistant to common pesticides. This is shown by a new study, the results of which have now been published by scientists from Julius-Maximilians-Universität Würzburg (JMU) in the journal Environment International.

University of North Carolina at Chapel Hill researchers have discovered that tardigrades—microscopic animals famed for surviving harsh extremes—have an unusual response to radiation.

New research from the University of Liverpool shows that dog owners think many important changes in their older pets are "just old age," when actually they are signs of serious health problems.

A recent UCLA study demonstrates a new process for screening T cells, part of the body's natural defenses, for characteristics vital to the success of cell-based treatments. The method filters T cells based on the receptor proteins found on their surface—which enable them to latch onto certain threats—and the type and amount of cell-killing or immune response-triggering molecules that they secrete.

Sweden has long had a strong symbolic value in US politics, representing a utopia that has chosen a golden middle way between capitalism and socialism. However, the tone has not always been positive and this image has been criticized. In a new report, Carl Marklund, researcher at the School of Historical and Contemporary Studies, investigates how the Swedish policy of neutrality and global events have affected the perception of Sweden in the US.

John Stone, a professor at the University of Barcelona, has found the request for two copies of Shakespeare's Othello to be sent to Lisbon in 1765, in the correspondence of the English scholar John Preston, a professor at the English College in Lisbon, addressed to the college's London agent, John Sheppard. Stone found this reference in the Ushaw College, in Durham (United Kingdom), where all the documents from the English College in Lisbon are now kept, after it closed its doors in 1973, after more than three hundred years of activity.

University of Alaska Fairbanks researchers have developed a way to use radar to detect open water zones and other changes in Alaska's frozen rivers in the early winter. The approach can be automated to provide current hazard maps and is applicable across the Arctic and sub-Arctic.

Colleen Harmeling, a Florida State University College of Business researcher, points to photo filters, overly edited photos and other distortions of user-generated content as impediments to consumer trust. In turn, they are potential barriers to the performance of products that users present and discuss online.

Saturn's moon Mimas could have grown a huge underground ocean as its orbital eccentricity decreased to its present value and caused its icy shell to melt and thin.

A new study suggests that the way parents view school meals can impact how likely their children are to participate in meal programs at school.

Like spoken languages, sign languages evolve organically and do not always have the same origin. This produces different ways of communication and annotation. This is the subject of Manolis Fragkiadakis's Ph.D. thesis.

A team of scientists has developed a method that harnesses the structure of light to twist and tweak the properties of quantum materials. Their results, published today in Nature, pave the way for advancements in next generation quantum electronics, quantum computing and information technology.

The idea that the universe is expanding dates from almost a century ago. It was first put forward by Belgian cosmologist Georges Lemaître (1894–1966) in 1927 and confirmed observationally by American astronomer Edwin Hubble (1889-1953) two years later. Hubble observed that the redshift in the electromagnetic spectrum of the light received from celestial objects was directly proportional to their distance from Earth, which meant that bodies farther away from Earth were moving away faster and the universe must be expanding.

As part of a team of ecologists, I've been studying aspects of great tit biology at Wytham Woods near Oxford. One aspect of our research is how climate change affects their breeding behavior. So far, our research suggests that these great tits have been able to deal with climate change effects.

Researchers at the University of Copenhagen's Niels Bohr Institute have developed a new way to create quantum memory: A small drum can store data sent with light in its sonic vibrations, and then forward the data with new light sources when needed again. The results demonstrate that mechanical memory for quantum data could be the strategy that paves the way for an ultra-secure internet with incredible speeds.

EU researchers are helping policymakers reconcile competing demands in a region full of natural resources, beauty and tradition.

"The science we need for the ocean we want"—this is the tagline for the UN Ocean Decade (2021-2030), which has just held its first conference in Barcelona, Spain. Marine scientists from around the world, including me, gathered alongside global leaders to chart the progress of this ten-year mission to improve ocean health and marine biodiversity. That includes finding ways to better protect the seabed which we still know relatively little about.

Over the past few years, people have generally become more conscious about the food they consume. Thanks to easier access to information as well as public health campaigns and media coverage, people are more aware of how nutrition ties in with both health benefits and chronic diseases. As a result, there is an ongoing cultural shift in most countries, with people prioritizing eating healthily. In turn, the demand for healthier food options and nutritional supplements is steadily growing.

Research published in the Proceedings of the National Academy of Sciences identifies how gentrified parts of a city have notably more urban wildlife than ungentrified parts of the same city, further limiting marginalized communities' opportunity to connect with nature.

There has been a recent surge of attention toward attachment theory: from TikTok videos to online quizzes that claim to "assess your attachment style." It's become a hot topic, especially in the context of romantic relationships, with some articles claiming that one person (or partner's) attachment styles are the reason why relationships fail.

Private equity (PE) is known as a "high-risk, high-return" asset class. But as risk-averse institutional investors continue to up their stake in PE, private fund managers are expected to provide metrics that characterize the riskiness of their portfolios. Yet the lack of observable prices makes traditional measures of risk (such as standard deviation of periodic investment returns) entirely unsuitable.

Games may be the secret to learning numbers based subjects like math and economics, according to new research.