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Science News Archive June 2020 - Page 38


Page 38 of 48

New report examines challenges and implications of false-negative COVID-19 tests

A new report published in the New England Journal of Medicine examines the limitations of COVID-19 diagnostic tests, highlighting concerns over false-negative results. The study emphasizes the need for highly sensitive and validated tests to accurately declare individuals uninfected, ensuring safe reopening of communities.

SourceThe Geisel School of Medicine at Dartmouth·JournalNew England Journal of Medicine·DateJun 5, 2020

Protecting the neuronal architecture

Heidelberg researchers demonstrate that restoring VEGFD levels can preserve dendritic arborisation and reduce brain damage after a stroke. A treatment using recombinant VEGFD and nose drops achieved similar results in mouse models.

SourceHeidelberg University·JournalProceedings of the National Academy of Sciences·DateJun 5, 2020

DNA increases our understanding of contact between Stone Age cultures

Researchers analyzed DNA from 25 Stone Age individuals and found that those buried in typical Pitted Ware culture graves were genetically similar to earlier Scandinavian hunter-gatherers. The presence of Battle Axe culture influences in some graves suggested trade and cultural exchange between the groups, rather than genetic migration.

SourceUppsala University·JournalAmerican Journal of Physical Anthropology·DateJun 5, 2020

To think like a dinosaur

Palaeontologists from St Petersburg University have created the most detailed virtual 3D-model of the endocranial cast and blood vessels of the head of an ankylosaurian. They found that ankylosaurs had a unique cooling system, an extremely developed sense of smell, and could hear low-frequency sounds.

SourceSt. Petersburg State University·JournalBiological Communications·DateJun 5, 2020

BESSY II: Experiment shows for the first time in detail how electrolytes become metallic

An international team developed a sophisticated experimental technique at BESSY II to observe the formation of a metallic conduction band in electrolytes. The team analyzed the process using soft X-rays and combined it with theoretical predictions, making this a significant contribution to fundamental understanding.

T cell immunity in the elderly

Researchers found that T cells increase their metabolism to survive, contradicting previous assumptions about immune function. The study suggests that targeted interventions like vaccines or immunotherapies could boost T cell immunity in the elderly.

SourceMonash University·JournalNature Communications·DateJun 5, 2020

Russian scientists demonstrate ion implantation advantages for the use of silicon in optoelectronics

Researchers demonstrate that introducing dislocations through ion implantation can increase the thermal stability of photoluminescence in silicon. By optimizing implantation conditions, they achieved measurable levels of luminescence at room temperature.

SourceLobachevsky University·JournalNuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms·DateJun 5, 2020

Creating hairy human skin: Not as easy as you think

Researchers at Boston Children's Hospital successfully recreate human skin with hair, nerves, and fat using a novel culture technique. The breakthrough has the potential to revolutionize wound treatment, burn care, and cosmetics testing, as well as aid in the development of new treatments for diseases such as Merkel cell carcinoma.

SourceBoston Children's Hospital·JournalNature·DateJun 5, 2020

Elsevier announces support for World Environment Day 2020

Elsevier has launched a free access special issue of curated content focused on biodiversity, highlighting the urgent need for climate action and protecting the planet. The collection features over 60 carefully selected journal articles and book chapters supporting the United Nations Sustainable Development Goals.

SourceElsevier·JournalOne Earth·DateJun 5, 2020

Protecting the kidneys from failing

Focal segmental glomerulosclerosis is a common cause of steroid-resistant nephrotic syndrome, which may progress to end-stage renal disease. Researchers found that the protein MafB plays a protective role in FSGS, with increased levels of MafB reducing kidney damage and nephrotic syndrome.

SourceUniversity of Tsukuba·JournalKidney International·DateJun 5, 2020

Hospitalized COVID-19 patients with diabetes represent more than 20 percent of ICU population

Hospitalized COVID-19 patients with diabetes require comprehensive glucose management to minimize complications and death. The new guidance emphasizes the importance of limiting direct contact between clinicians and patients, using remote monitoring devices, and considering diabetes self-management for knowledgeable patients.

SourceThe Endocrine Society·JournalThe Journal of Clinical Endocrinology & Metabolism·DateJun 5, 2020

COVID-19 news from Annals of Internal Medicine

A recent study published in Annals of Internal Medicine explores the disproportionate impact of COVID-19 on ethnic minority communities, highlighting existing disparities in healthcare access and treatment. The authors offer a resilience approach to addressing these disparities, drawing parallels with the 1918 influenza pandemic.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateJun 5, 2020