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276,585 articles from PhysOrg


New technique for sorting micro-particles uses sound waves

Thanks to the rapid progress in tiny tech, we've been mainly using microfluidics to sort tiny particles by size. But now, there's a new way to sort them by shape, which could be a big deal for medical tests and chemistry. A recent study introduces a new method using sound waves to separate oddly shaped particles from round ones without needing any labels. This breakthrough could lead to better...

Study shows cloud clustering causes more extreme rain

Understanding cloud patterns in our changing climate is essential to making accurate predictions about their impact on society and nature. Scientists at the Institute of Science and Technology Austria (ISTA) and the Max-Planck-Institute for Meteorology published a study in the journal Science Advances that uses a high-resolution global climate model to understand how the clustering of clouds and...

New species of fungi potentially harmful to humans identified in freshwater ecosystems

A study by the Mycology and Environmental Microbiology Unit of the Universitat Rovira i Virgili has identified new species of fungi that may cause infections or diseases in people and animals. Carried out in river ecosystems, the research is part of a project on biodiversity and the role played by a large group of fungi, the ascomycetes, in the aquatic ecosystem.

Researchers develop a computer from an array of VCSELs with optical feedback

In our data-driven era, solving complex problems efficiently is crucial. However, traditional computers often struggle with this task when dealing with a large number of interacting variables, leading to inefficiencies such as the von Neumann bottleneck. A new type of collective state computing has emerged to address this issue by mapping these optimization problems onto something called the Ising...

Online brand advocacy and Gen Z consumer behavior

Understanding the dynamics of online brand advocacy is increasingly important in today's digital landscape, particularly for businesses targeting Generation Z (Gen Z) consumers. A study in the International Journal of Internet Marketing and Advertising surveyed 221 students intending to explore the factors influencing online brand advocacy behavior and its impact on purchase intentions and also...

How to build your own robot friend: Making AI education more accessible

From smart virtual assistants and self-driving cars to digital health and fraud prevention systems, AI technology is transforming almost every aspect of our daily lives—and education is no different. For all its promise, the rise of AI, like any new technology, raises some pressing ethical and equity questions.

Generative AI can accelerate study time, research shows

Time plays a crucial role in higher education learning and influences learning progress and the achievement of academic goals. Shortening learning time through AI-supported, personalized approaches can help to reduce drop-out rates and increase enrollment rates.

Assessing soil carbon stocks accurately

Researchers from Teagasc have published an article in Geoderma Regional highlighting the consequences of not measuring soil organic carbon (SOC) stocks in Irish grassland soils precisely. Quantifying changes in SOC, either carbon sequestration or losses into the atmosphere, requires accurate determination of soil bulk density, which is only achieved by accounting for soil stone content (rock...

Solar physics: Why study it? What can it teach us about finding life beyond Earth?

Universe Today has investigated the importance of studying impact craters, planetary surfaces, exoplanets, and astrobiology, and what these disciplines can teach both researchers and the public about finding life beyond Earth. Here, we will discuss the fascinating field of solar physics (also called heliophysics), including why scientists study it, the benefits and challenges of studying it, what...

Big lemming populations are important for far more than just predators

The number of lemmings (Lemmus lemmus) in the mountains can fluctuate sharply from one year to the next. Years when populations explode are called lemming years. These population explosions are important for many other species. More predators and birds of prey, for example, do better and often have more offspring than usual when there are plenty of lemmings around.

Research provides insight into constructing gene regulatory networks

Gene regulatory networks (GRNs) depict the regulatory mechanisms of genes within cellular systems as a network, offering vital insights for understanding cell processes and molecular interactions that determine cellular phenotypes. Transcriptional regulation, a prevalent type for regulating gene expression, involves the control of target genes (TGs) by transcription factors (TFs).

Disentangling nature's contributions to international trade

Researchers have developed a multistep process to quantify the dependency of international trade and nature's contributions to people. With their new approach, which has been published in People and Nature, the researchers hope to improve knowledge about the complex relationship between nature and international trade.

Altering the circadian clock adapts barley to short growing seasons

To ensure that plants flower at the right time of year, they possess an internal clock that enables them to measure the amount of daylight during a day. In a study published in the journal Plant Physiology, biologists from Heinrich Heine University Düsseldorf (HHU) describe that the mutation of a specific gene makes the flowering time of barley almost entirely independent of day length. This...