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A new study shows that DNA duplication has been vitally important throughout the evolutionary history of gymnosperms, a diverse group of seed plants that includes pines, cypresses, sequoias, ginkgos and cycads.

Researchers from The University of Texas at Austin have found a low-cost way to solve one half of the water-splitting equation to produce hydrogen as clean energy -- using sunlight to efficiently split off oxygen molecules from water. The finding represents a step forward toward greater adoption of hydrogen as a key part of our energy infrastructure.

Did you know multiple sclerosis (MS) means multiple scars? New research shows that the brain and spinal cord scars in people with MS may offer clues to why they developprogressive disability but those with related diseases where the immune system attacks the central nervous system do not. In a study published in Neurology, Mayo Clinic researchers and colleagues assessed if inflammation leads to permanent scarring in these three diseases.

A Canadian study reveals that lesbian, gay and bisexual youth are more likely than heterosexual youth to increase their use of cannabis following an increase in their symptoms of depression.

Army-funded research identified a new material that may lead to lightweight armor, protective coatings, blast shields and other impact-resistant structures.

A serendipitous flythrough of the tail of a disintegrated comet has offered scientists a unique opportunity to study these remarkable structures, in new research presented today at the National Astronomy Meeting 2021.

When it comes to transitioning from carbon-based to renewable source energy systems, Americans are on board. They're less keen, however, having these new energy infrastructures built close to their homes.

Analysis of children and young people's proximity to woodlands has shown links with better cognitive development and a lower risk of emotional and behavioural problems, in research led by UCL and Imperial College London scientists that could influence planning decisions in urban areas.

Universidad Complutense de Madrid (Spain) is participating in the first study of antibiotic resistance genes in this species on two islands of the archipelago, Santa Cruz and Isabela. The results have established the tortoises as bioindicators of the health of ecosystems in the face of one of the biggest threats to public health, and now also environmental pollutant.

This tool forms part of the family of models of the θ-SIR type, and has been developed by Universidad Complutense de Madrid and Universidad de Almería (both from Spain), taking Italy as a reference. As well as these variables it takes into account other parameters such as undetected cases, control measures and phases of the illness.

The second dose of a COVID-19 vaccine induces a powerful boost to a part of the immune system that provides broad antiviral protection, according to a study led by investigators at the Stanford University School of Medicine.

In a new review in the Journal of Dairy Science, a team from Iowa State University Department of Animal Science critically reviews the current accepted understanding of cow health between giving birth and beginning to produce milk to investigate the reasons for persistent health problems. Their findings suggest lines of inquiry that may prove more effective and call into question methods and conclusions of previous research and how such work has been applied in the dairy industry.

With hopes to capitalize on the smell factor in flavor development, researchers are exploring how the route an aroma takes to get to the olfactory system, through the nose or the back of the throat, influences our response to the scent in question.

A new study shows how biometric data can be used to find potentially challenging and dangerous areas of urban infrastructure. By analyzing eye-tracking data from cyclists navigating Philadelphia's streets, researchers from the lab of Megan Ryerson found that these individual-based metrics can provide a more proactive approach for designing safer roadways for bicyclists and pedestrians.

A team of researchers from the University of Bern and the Institute of Virology and Immunology (IVI) have used a unique collection of advanced cell culture models of cells lining the airways from various domesticated and wildlife animals to determine which animals are susceptibly to SARS-CoV-2 infection. The team found that SARS-CoV-2 efficiently infected respiratory cells from monkey and cats, and proposes that SARS-CoV-2 surveillance in these animals and its close relatives is necessary.

A new study by Marshall University researchers shows that during development, brain cells may find different ways to connect with each other based on sex.

Facilitated by the Germplasm Bank of Wild Species of the Kunming Institute of Botany (KIB) of the Chinese Academy of Sciences (CAS), Prof. YI Tingshuang and Prof. LI Dezhu of KIB led a novel study on gymnosperm diversification with a team of international researchers.

Michigan State University ecologists led an international research partnership of professional and volunteer scientists to reveal new insights into what's driving the already-dwindling population of eastern monarch butterflies even lower.

A new study published in JAMA Neurology suggests that certain features that appear on CT scans help predict outcomes following mild traumatic brain injury (TBI). Patterns detected on the scans may help guide follow up treatment as well as improve recruitment and research study design for head injury clinical trials.

How a type of white blood cell, called neutrophils, responds to pathogens varies greatly between the sexes and with age in a mouse study at USC.