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Science News Archive 2021 - Page 413


Page 413 of 510

Microscopic wormholes possible in theory

Researchers develop theoretical model suggesting microscopic wormholes could be traversable without exotic matter, using Dirac field to describe probability density function of particles. The model proposes that certain elementary particles like electrons and electromagnetic waves could traverse tiny tunnels in spacetime.

SourceUniversity of Oldenburg·JournalPhysical Review Letters·DateMar 9, 2021

Breaking the warp barrier for faster-than-light travel

Researcher Dr. Erik Lentz discovered a new class of hyper-fast 'solitons' that can enable travel at any speed without requiring exotic matter with negative energy density. The equations used in this research would allow space travel to Proxima Centauri and back within years, compared to current rocket technology's 50,000-year journey.

SourceUniversity of Göttingen·JournalClassical and Quantum Gravity·DateMar 9, 2021

Six research teams win Carbon Hub funding

Rice University's Carbon Hub has awarded seed grants to six research projects aiming to transform the oil and gas sector into a leading provider of clean hydrogen energy and solid carbon products. The selected teams will investigate various applications, including cement reinforced with carbon fibers, urban smog reduction, and replacin...

Hospital-based violence intervention program engages vulnerable populations

A hospital-based violence intervention program effectively engages vulnerable populations by addressing specific client needs. The study highlights the complexities of program attrition and altering life courses for victims of violence, emphasizing the need for targeted strategies to address upstream factors of community violence.

SourceSociety for Academic Emergency Medicine·JournalAcademic Emergency Medicine·DateMar 8, 2021

Tracing malaria's ecology using blood samples from birds

Researchers analyzed blood samples from over 1,000 bird species to understand malaria ecology. They found that the strains of malaria present in a local area don't always align with the types of birds living there, instead being influenced by weather patterns such as rainfall.

SourceField Museum·JournalProceedings of the National Academy of Sciences·DateMar 8, 2021

BU researchers identify basic mechanisms that regulate HIV expression

Researchers at Boston University School of Medicine identified novel transcription factors that influence HIV expression and provided insight into cellular networks controlling activation and repression. Understanding these mechanisms may help target the latent reservoir of virus, allowing for potential treatment advancements.

SourceBoston University School of Medicine·JournalProceedings of the National Academy of Sciences·DateMar 8, 2021

New discovery explains antihypertensive properties of green and black tea

A new study from the University of California, Irvine shows that compounds in both green and black tea relax blood vessels by activating ion channel proteins in the blood vessel wall. The discovery helps explain the antihypertensive properties of tea and could lead to the design of new blood pressure-lowering medications.

SourceUniversity of California - Irvine·JournalCellular Physiology and Biochemistry·DateMar 8, 2021

Virtual avatar coaching with community context for adult-child dyads

A new study published in Journal of Nutrition Education and Behavior found that virtual reality avatar-based coaching programs can spark dialogue about dietary habits and behavior among children and adults. The program showed promise to increase access and extend the reach of nutrition education for lower-income kids and families.

SourceElsevier·JournalJournal of Nutrition Education and Behavior·DateMar 8, 2021

Sea otters maintain remnants of healthy kelp forest amid sea urchin barrens

A study found that sea otters in Monterey Bay are maintaining patches of healthy kelp forest despite a decline in overall kelp forests along the California coast due to an outbreak of sea urchins. Sea otters increase their consumption of urchins in the remaining kelp patches, but ignore those in barren areas with low nutritional value.

SourceUniversity of California - Santa Cruz·JournalProceedings of the National Academy of Sciences·DateMar 8, 2021

No more sitting in the dark?

A new study found that self-paced physical and cognitive activity after a concussion does not hasten or prolong recovery in children and teens. Increased daily step count was associated with early symptom resolution, but the association was not statistically significant.

SourceNationwide Children's Hospital·JournalJournal of Head Trauma Rehabilitation·DateMar 8, 2021

UCLA-led study reveals 'hidden costs' of being Black in the US

A new UCLA-led study finds that Black men face high levels of discriminatory indignities on a nearly daily basis, regardless of income level. The study's results indicate that structural barriers limit the benefits of economic achievements for Black men, increasing the risk of adverse physical and mental health outcomes.

SourceUniversity of California - Los Angeles·JournalInternational Journal of Environmental Research and Public Health·DateMar 8, 2021