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Science News Archive 2020 - Page 125


Page 125 of 512

Millimetre-precision drug delivery to the brain

Researchers at ETH Zurich have developed a non-invasive method for concentrating and releasing drugs in the brain with pinpoint accuracy using focused ultrasound. The new technique aggregates drugs at specific sites, reducing dosage requirements by 1,300 times, and preserves physiological barriers between blood and nervous tissue.

SourceETH Zurich·JournalNature Communications·DateOct 5, 2020

Two's a crowd: Nuclear and renewables don't mix

A new study published in Nature Energy reveals that nuclear power does not deliver sufficient carbon emission reductions and should not be considered a low-carbon energy source. Renewable energy investments are found to have stronger correlations with CO2-emission reductions, particularly in countries with lower GDP per capita.

SourceUniversity of Sussex·JournalNature Energy·DateOct 5, 2020

Preliminary results of two large immune therapy studies show promise in advanced cervical cancer

Preliminary results from two large clinical trials investigating a new PD-1-based immune therapy for metastatic cervical cancer suggest improved response rates and potential new treatment options. The trials involved over 150 patients with recurrent or metastatic cervical cancer and tested the combination of balstilimab and zalifrelimab.

Promising breath-test for cancer

Researchers at Flinders University have developed a non-invasive breath test that accurately differentiates between head and neck cancer patients and those with benign diseases. The test uses volatile organic compounds in exhaled breath to detect the presence of cancer, showing high sensitivity and specificity rates.

SourceFlinders University·JournalBritish Journal of Cancer·DateOct 5, 2020

A tale of two cesspits: DNA reveals intestinal health in Medieval Europe and Middle East

A new study analyzed DNA from medieval latrines in Jerusalem and Riga, Latvia, providing insights into the microbiomes of pre-industrial agricultural populations. The findings highlight the value of ancient latrines as sources of bio-molecular information and may provide context for interpreting modern microbiome health.

SourceMax Planck Institute of Geoanthropology·JournalPhilosophical Transactions of the Royal Society of London (B )·DateOct 4, 2020

Air stable intrinsically stretchable color-conversion layers for stretchable displays

Researchers at Seoul National University have developed an air-stable color conversion layer using perovskite nanocrystals and a flexible polymer matrix, enabling the creation of stretchable displays that can be bent, stretched, and attached to the skin. The new material has shown improved stability and photoluminescence intensity unde...

SourceSeoul National University·JournalAdvanced Materials·DateOct 4, 2020

A tale of two cesspits: DNA reveals intestinal health in Medieval Europe and Middle East

A new study characterizes the microbial diversity of ancient gut contents from medieval latrines, providing insights into pre-industrial agricultural populations' microbiomes. The research highlights the value of ancient latrines as sources of bio-molecular information, shedding light on the health of modern microbiomes.

SourceUniversity of Cambridge·JournalPhilosophical Transactions of the Royal Society of London (B )·DateOct 4, 2020

All-2D light-emitting field-effect transistors

Researchers have developed a new type of transistor that can emit strong light, overcoming previous limitations. By modulating the contacts and channel with separate three gates, the polarity and light emission can be controlled, showing great promises for multi-digit logic devices and highly integrated optoelectronic circuitry.

SourceSeoul National University·JournalAdvanced Materials·DateOct 4, 2020

How the brain helps us navigate social differences

Researchers found that brain activity increased in the left dorsolateral prefrontal cortex when participants conversed with someone of a different socioeconomic background. This increase in activity suggests that our brains have developed a system to help us deal with diversity, supporting previous research on frontal lobe systems and ...

SourceUniversity College London·JournalSocial Cognitive and Affective Neuroscience·DateOct 4, 2020

A putative mechanism that switches brain pathology from anxiety to depression discovered

Researchers discovered a novel brain mechanism that links anxiety and depression, showing unique cellular mechanisms activate as one pathology progresses into another. The 'switch' involves astrocytes and cytoskeletal mechanisms, which may be targeted for new classes of psychotropic drugs.

SourceSt. Petersburg State University·JournalProgress in Neuro-Psychopharmacology and Biological Psychiatry·DateOct 2, 2020

Face masks unlikely to cause over-exposure to CO2, even in patients with lung disease

A study published in the Annals of the American Thoracic Society found that wearing face masks has minimal impact on gas exchange in healthy individuals and those with severe lung impairment. The researchers stress the importance of wearing masks to prevent COVID-19 infection, especially for patients with lung disease.

SourceAmerican Thoracic Society·JournalAnnals of the American Thoracic Society·DateOct 2, 2020