142 articles from MONDAY 13.6.2022

New yeast model can improve protein production

Microorganisms, such as baker's yeast, can be used as cell factories to produce different chemicals and proteins, such as commonly used pharmaceuticals as insulin. By modifying the cell factories researchers are trying to increase the yield and speed of the production processes. In a new study published in Nature Communications, researchers in systems biology at Chalmers provide us with a new...

Tracing the remnants of Andromeda's violent history

A detailed analysis of the composition and motion of more than 500 stars has revealed conclusive evidence of an ancient collision between Andromeda and a neighboring galaxy. The findings, which improve our understanding of the events that shape galaxy evolution, were presented by Carnegie's Ivanna Escala Monday at the meeting of the American Astronomical Society.

Researchers discover mechanism linking mutations in the 'dark matter' of the genome to cancer

Many sections of the non-coding region of the human genome play a key role in regulating gene activity. But the relationship between non-coding mutations and cancer risk has been a mystery. New research sheds light on that mystery, providing clues that may link mutations to epigenetic changes, and may point to potential drug targets to reduce risk for people born with certain genetic mutations.

Sanctuary practices lower counties' crime rates, study finds

Counties that don't cooperate with Immigration and Customs Enforcement (ICE)—also known as "sanctuary counties"—have seen their crime rates decrease after implementing sanctuary policies, according to a new study from a researcher at The University of Texas at Austin.

Team uses hot water to form photocatalyst

The production of chemical substances normally requires environmentally harmful solvents. After the research group of Miriam Unterlass, professor of solid state chemistry at the University of Konstanz, produced organic substances without harmful substances for the first time by heating them in hot water, the researchers can now chalk up another success: Through hydrothermal synthesis, they...

Shorter, wider flowers may transmit more parasites to bees

North Carolina State University researchers show that the shape of flowers has the biggest effect on how parasites are transmitted to bees, an important consideration for declining populations of our prodigious pollinators. The findings could help stakeholders plant flowers that are less likely to spread parasites in pollinator habitats.

Creating a better wig with chemistry

For some people, wigs are a fun and colorful fashion accessory, but for those with hair loss from alopecia or other conditions, they can provide a real sense of normalcy and boost self-confidence. Whether made from human or synthetic strands, however, most hairpieces lose their luster after being worn day after day. Now, researchers in ACS Applied Materials & Interfaces report a new way to make...

Bioengineering team develops a remote lab to teach enzyme kinetics

The COVID-19 pandemic forced teachers across the globe to embrace remote learning. Although adapting existing materials was relatively easy for lecture-based courses that revolved around theory, teaching laboratory classes remotely presented a formidable challenge. In a new paper published in the Journal of Microbiology & Biology Education, researchers from the Department of Bioengineering at the...

Stress accelerates immune aging, study finds

Stress -- in the form of traumatic events, job strain, everyday stressors and discrimination -- accelerates aging of the immune system, potentially increasing a person's risk of cancer, cardiovascular disease and illness from infections such as COVID-19, according to a new study. The research could help explain disparities in age-related health, including the unequal toll of the pandemic, and...

Nanoparticle sensor can distinguish between viral and bacterial pneumonia

Many different types of bacteria and viruses can cause pneumonia, but there is no easy way to determine which microbe is causing a particular patient's illness. This uncertainty makes it harder for doctors to choose effective treatments because the antibiotics commonly used to treat bacterial pneumonia won't help patients with viral pneumonia. In addition, limiting the use of antibiotics is an...

New inherited retroviruses identified in the koala genome

Historic virus infections can be traced in vertebrate genomes. For millions of years, these genomes have been repositories for retroviruses that incorporated their code into germline cells and were inherited as endogenous retroviruses (ERVs). Researchers now provide new findings about retroviral establishment in the koala genome.

Seals use whiskers to track prey in deep ocean, study shows

Scientists analysed footage from small video cameras with infrared night-vision attached to the animals When they are in the deep, dark ocean, seals use their whiskers to track down their prey, a study has confirmed after observing the sea mammals in their natural habitat.It’s hard for light to penetrate the gloom of the ocean’s depths, and animals have come up with a variety of adaptations in...

Nanoparticle sensor can distinguish between viral and bacterial pneumonia

Many different types of bacteria and viruses can cause pneumonia, but there is no easy way to determine which microbe is causing a particular patient's illness. This uncertainty makes it harder for doctors to choose effective treatments because the antibiotics commonly used to treat bacterial pneumonia won't help patients with viral pneumonia. In addition, limiting the use of antibiotics is an...

New inherited retroviruses identified in the koala genome

Historic virus infections can be traced in vertebrate genomes. For millions of years, these genomes have been repositories for retroviruses that incorporated their code into germline cells and were inherited as endogenous retroviruses (ERVs). Researchers from Uppsala University now provide new findings about retroviral establishment in the koala genome. The findings are being published in the...

Seal whiskers, the secret weapon for hunting

The deep ocean is a dark place, yet deep-diving seals can easily locate their prey in that darkness. A multi-national research team has used field-based studies to better understand how seals use their whiskers in their search for prey.

Arati Prabhakar set to become Biden’s science adviser and his pick to lead science office

Some content has been removed for formatting reasons. Please view the original article for the best reading experience. In 1993, then-President Bill Clinton picked a 34-year-old applied physicist named Arati Prabhakar to lead the National Institute of Standards and Technology (NIST). Two decades later, former President Barack Obama chose her to lead the Defense Advanced Research Projects...

Artificial intelligence may have unearthed one of the world’s oldest campfires

Some content has been removed for formatting reasons. Please view the original article for the best reading experience. It’s not always easy to find clues to ancient campfires. Bits of charcoal, cracked bones, and discolored rocks often give a prehistoric blaze away. But not every blaze leaves such obvious traces, especially after hundreds of thousands of years. Now, using...

Mice of the sea: Watch elephant seals use whiskers to find food

Some content has been removed for formatting reasons. Please view the original article for the best reading experience. Female elephant seals spend most of their lives fishing in complete darkness. Now, by strapping infrared cameras to their heads, scientists have figured out how these sleek swimmers locate their prey: They move their whiskers like satellite...

A better wig -- with chemistry

For some people, wigs are a fun and colorful fashion accessory, but for those with hair loss from alopecia or other conditions, they can provide a real sense of normalcy and boost self-confidence. Whether made from human or synthetic strands, however, most hairpieces lose their luster after being worn day after day. Now, researchers report a new way to make wigs more durable and long lasting.

Catalyst from hot water

The production of chemical substances normally requires environmentally harmful solvents. After researchers had produced organic substances without harmful substances by heating them in hot water, they can now chalk up another success: Through hydrothermal synthesis, they succeeded in jointly forming and combining organic and inorganic substances in the same reaction vessel. Specifically: an...

RNA exosome key for B cell development

New research suggests that RNA exosomes -- the cellular machines that degrade old molecules of RNA -- play a key role in the development of B cells, which are critical to the immune system's ability to protect against infection. The findings explain why patients with rare mutations in a gene that codes for this machinery are often immunodeficient and could offer new approaches to treat autoimmune...