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155,291 articles from ScienceDaily


Some everyday materials have memories, and now they can be erased

Some solid materials have a memory of how they have previously been stretched out, which impacts how they respond to these kinds of deformations in the future. A new study lends insight into memory formation in the foams and emulsions common in food products and pharmaceuticals and provides a new method to erase this memory, which could guide how materials are prepared for future use.

Logging down the value chain raises future forest sustainability concerns

Over a 50-year period, logging on B.C.'s Central Coast preferentially targeted the highest value locations on the landscape, according to new research. The systematic depletion of high-value components of the environment raises concerns about future sustainability and intergenerational access to natural resources. Led by SFU PhD graduate Jordan Benner and professor emeritus Ken Lertzman and...

Cleaner, more cost-effective way to make useful industrial chemicals

A team of researchers has developed a new, ecologically sensitive way to produce these nanocrystals through a process called high-humidity shaker aging. The new technique represents an advance over existing methods in that it costs less, uses less water, and eliminates the need for toxic solvents, all while producing higher yields.

The surprising Swiss-Army-knife-like functions of a powerful enzyme

Blue-green algae (AKA cyanobacteria) have a superpower which likely helps them be highly successful as invaders of waterways. They have an extraordinary ability to store energy and nitrogen in their cells for times of need. But how exactly they do so remains only partly understood. Now researchers have uncovered an intriguing hitherto unknown ability of the enzymes (known as cyanophycin...

Glass microspheres won't save Arctic sea ice

A proposal to cover Arctic sea ice with layers of tiny hollow glass spheres about the thickness of one human hair would actually accelerate sea-ice loss and warm the climate rather than creating thick ice and lowering the temperature as proponents claim. Sea ice, by reflecting the majority of the sun's energy back to space, helps regulate ocean and air temperatures and influences ocean...

Petting dogs engages the social brain, according to neuroimaging

Researchers report that viewing, feeling, and touching real dogs leads to increasingly higher levels of activity in the prefrontal cortex of the brain. The study shows that this effect persists after the dogs are no longer present, but is reduced when real dogs are replaced with stuffed animals. The findings have implications for animal-assisted clinical therapy.

College student 'Fear of Missing Out' (FoMO) associated with illicit behavior

The fear of missing out (FoMO) on rewarding and fun experiences is something that most people feel at some point in life. Among college students, the degree to which someone experiences FoMO is associated with their risk of participating in maladaptive behaviors including academic misconduct, drug and alcohol use, and breaking the law, according to a new study.

Fishing for sharks: Hot or not?

New research from marine scientists raises potential red flags for sharks that are caught and released by recreational anglers. The team has discovered that the ocean's iconic predators typically spike temperatures after they have been caught, which may have physiological and behavioral impacts.

RNA origami enables applications in synthetic biology

Synthetic biology strives to achieve robust control of biological processes in order to create designer organisms for a variety of industrial, diagnostic, and therapeutic applications. Researchers have developed RNA origami sponges and CRISPR-based regulators for advanced genetic control of enzymatic pathways in microorganisms to improve production of valuable biochemicals.

New RNA-based tool can illuminate brain circuits, edit specific cells

Researchers have developed a customizable, RNA-based platform to target cells rather than genes. CellREADR enables scientists to add any protein to a designated cell type. Initial evidence demonstrates the new technology works for brain tissue in rodents and humans and its design relies on an enzyme found in every animal cell, suggesting easy adoption for other creatures and organs. It may provide...

Second stem cell type discovered in mouse brain

In the brain of adult mammals neural stem cells ensure that new nerve cells, i.e. neurons, are constantly formed. This process, known as adult neurogenesis, helps mice maintain their sense of smell. A research team recently discovered a second stem cell population in the mouse brain, which is primarily involved in the production of new neurons in the olfactory bulb of adult mice.

How the smell of food can enable 'time travel'

Older people exposed to food flavors from their youth were able to 'time travel' back to the past with an enhanced memory of the event. For food memory, the researchers worked with the participants to create bespoke flavor-based cues for each one. The 3D printed flavour-based cues are small edible balls, modelling the original food. A striking outcome was the large number of memories cued by...

Multiple health benefits of b-type procyanidin-rich foods like chocolate and apples consumed in right amounts

Procyanidins are a class of polyphenols (plant metabolites) that are abundantly found in nature. The B-type procyanidins are one of the most commonly consumed catechin oligomers in the human diet. Previous studies have shown both the long-term and single-dose advantages of B-type procyanidins on human metabolism, circulation, and the nervous system. Now researchers review the hormetic effects of...