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Science News Archive 2020 - Page 97


Page 97 of 512

How genetic variation gives rise to differences in mathematical ability

A study published in PLOS Biology found that genetic variants of the ROBO1 gene in young children are associated with grey matter volume in the right parietal cortex, predicting mathematical test scores. The research suggests that genetic variability may shape mathematical ability by influencing early brain development.

SourcePLOS·JournalPLOS Biology·DateOct 22, 2020

Study: Malaria-preventive drugs dramatically reduce infections in school children

A new study found that malaria-preventive drugs can dramatically reduce infections in school children by half, leading to improved learning and reduced anemia. The analysis included 15,000 schoolchildren across seven African countries and showed a significant association between preventive treatment and better health outcomes.

SourceUniversity of Maryland School of Medicine·JournalThe Lancet Global Health·DateOct 22, 2020

New tricks for old antibiotics

Doxycycline, an antibiotic, confers protection against sepsis by inhibiting mitochondrial protein production, reducing cell damage and promoting tissue repair. The study opens new possibilities for therapies targeting disease tolerance mechanisms to combat infections and diseases like sepsis.

SourceInstituto Gulbenkian de Ciencia·JournalImmunity·DateOct 22, 2020

Are bushmeat hunters aware of zoonotic disease? Yes, but that's not the issue

A recent study in northern Uganda found that bushmeat hunters and women who cook the meat are aware of the potential for zoonotic diseases, but their practices are often driven by financial gain rather than precaution. The survey also revealed that many hunters disguise primate meat to avoid detection, posing a risk to public health.

Exercising one arm has twice the benefits

Researchers found that eccentric exercise on the opposing arm can prevent muscle damage and build strength in the unaffected limb. The study involved 30 participants with one arm immobilised for four weeks, showing significant improvements in strength and minimal muscle loss.

SourceEdith Cowan University·JournalScandinavian Journal of Medicine and Science in Sports·DateOct 22, 2020

To avoid impression that SARS-CoV-2 transmission is ever-changing, interpret new info using existing

The authors argue that the rapidly developing research on SARS-CoV-2 transmission provides a solid foundation for interpreting new information. The established knowledge of viral spread across various contexts and spatial scales, including household, residential, and community settings, remains well-established.

How herpes infection may impair human fetal brain development

A study found that herpes simplex virus type 1 infection can cause impaired neuronal differentiation and abnormal brain structure in the human fetus, contributing to long-term neurological problems. The research also identified HSV-1-infected microglia promoting inflammation and suggesting new therapeutic avenues for targeting viral re...

SourcePLOS·JournalPLOS Biology·DateOct 22, 2020

Tumor DNA in spinal fluid could help doctors better monitor childhood brain cancer

Researchers have developed a portable DNA sequencing technology to detect tumor DNA in cerebrospinal fluid, allowing for rapid and reliable monitoring of high-grade gliomas. This approach overcomes traditional barriers to diagnosing and treating pediatric brain cancer, offering a non-invasive alternative to invasive surgeries.

SourceMichigan Medicine - University of Michigan·JournalClinical Cancer Research·DateOct 21, 2020

Dual brain imaging provides insight into neural basis of patient-clinician relationship

Researchers used a novel MRI-based approach to study the interaction between patients and clinicians, finding that mirroring in facial expressions and brain activity can affect the patient-clinician bond and treatment. This study suggests that the clinical encounter has a measurable impact on the brain, emotions, and clinical outcomes.

SourceMassachusetts General Hospital·JournalScience Advances·DateOct 21, 2020

Good vibrations for new energy

Scientists at Flinders University have created a new type of nanogenerator that can capture power from environmental vibrations, enabling the development of wireless charging systems and implantable energy harvesting devices. The technology has the potential to revolutionize the way we generate and use energy.

SourceFlinders University·JournalNano Energy·DateOct 21, 2020

A new way of looking at the Earth's interior

Researchers have found that the Earth's mantle has a different composition to its upper layer, contradicting long-held assumptions. Lab experiments and seismic wave analysis suggest that silicon is present in the lower mantle, not the core.

SourceETH Zurich·JournalProceedings of the National Academy of Sciences·DateOct 21, 2020

Spectral CT improves detection of early-stage coronavirus disease (COVID-19)

A study published in the American Journal of Roentgenology found that spectral CT with electron density imaging can improve the assessment of lung lesion extent in patients with COVID-19. The results showed that lesion extent was easier to ascertain on electron density images, and ground-glass opacities were more conspicuous.

SourceAmerican Roentgen Ray Society·JournalAmerican Journal of Roentgenology·DateOct 21, 2020

Tocilizumab doesn't ease symptoms or prevent death in moderately ill COVID-19 inpatients

A new study published in the New England Journal of Medicine found that tocilizumab does not reduce the need for breathing assistance with mechanical ventilation or prevent death in moderately ill hospitalized patients with COVID-19. The treatment was tested on 243 patients with high levels of inflammation and pneumonia, fever, or low ...

SourceMassachusetts General Hospital·JournalNew England Journal of Medicine·DateOct 21, 2020

Researchers provide most detailed and complete record yet of Earth's last magnetic reversal

A team of researchers in Japan has created the most detailed and complete record yet of Earth's last magnetic reversal. The study reveals that the geomagnetic field became unstable at least 10,000 years prior to the magnetic direction change 773,000 years ago, and the full reversal process took at least 20,000 years.

SourceResearch Organization of Information and Systems·JournalProgress in Earth and Planetary Science·DateOct 21, 2020

Cutting cancer off at the head

Researchers have developed a new diagnostic tool that can detect cancer cells in small blood samples and connect them to their original tumor. This method has shown significant correlations between circulating tumor cells and tumor expression levels, allowing for targeted therapeutic agents to be used more accurately.

SourceOsaka City University·JournalCancer Science·DateOct 21, 2020

Ice loss likely to continue in Antarctica

A new international study by Monash University reveals that Antarctica's ice loss is expected to continue unabated for a long time, even if climate change is brought under control. The study found that rapid ice loss rates in the recent geological past were similar to those observed in rapidly changing parts of Antarctica today.

SourceMonash University·JournalGeology·DateOct 21, 2020

Deep magma facilitates the movement of tectonic plates

Scientists have discovered that a tiny amount of molten rock, less than 0.7% by volume, is present in the asthenosphere under all oceanic plates, reducing the viscosity and 'decoupling' them from the underlying mantle. This research improves our understanding of plate tectonics and how it drives plate movement.

SourceCNRS·JournalNature·DateOct 21, 2020