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Science News Archive 2020 - Page 235


Page 235 of 512

Frequent social media use influences depressive symptoms over time among LGBTQ youth

Research finds that frequent social media use can negatively impact depressive symptoms among LGBTQ youth, but a social media-free summer camp shows promise in reducing symptoms. After attending the camp, participants experienced a significant reduction in depressive symptoms, particularly those with high pre-camp social media use.

SourceEdward R. Murrow College of Communication·JournalJournal of Gay & Lesbian Mental Health·DateJul 23, 2020

New research finds graphene can act as surfactant

New research finds that graphene flakes can attract water at their edges but repel it on their surface, making them a new generation of surfactant. This property allows graphene to stabilise oil and water mixtures, opening up possibilities for environmentally friendly extraction of minerals and crude oil.

SourceCranfield University·JournalAdvanced Materials·DateJul 22, 2020

AJTMH July updates

The American Journal of Tropical Medicine and Hygiene highlights the importance of understanding COVID-19's origins to prevent future pandemics. The journal emphasizes the need for increased funding for medical research and public health measures, warning that politics can undermine these efforts.

SourceBurness·JournalAmerican Journal of Tropical Medicine and Hygiene·DateJul 22, 2020

Climate predictions several years into the future?

A study by GEOMAR Helmholtz Centre for Ocean Research Kiel predicts North Atlantic surface temperature variations several years into the future using wind field analysis. The researchers suggest a mechanism where winds cause changes in ocean circulation, resulting in anomalous heat accumulation and warming of the eastern North Atlantic.

SourceHelmholtz Centre for Ocean Research Kiel (GEOMAR)·JournalGeophysical Research Letters·DateJul 22, 2020

Genomic signature explains FDG-avidity of PSMA-suppressed prostate tumors

A genomic signature associates with differential expression of glucose transporters and hexokinase proteins in prostate cancers with low PSMA expression. This allows for improved uptake of 18F-FDG compared to PSMA-targeted radioligands, making it an attractive imaging tool for neuroendocrine prostate cancer patients.

SourceSociety of Nuclear Medicine and Molecular Imaging·JournalJournal of Nuclear Medicine·DateJul 22, 2020

Atomic force microscopy reveals nanoscale dental erosion from beverages

KAIST researchers used AFM to analyze the effects of acidic and sugary drinks on human tooth enamel at the nanoscale level. The study found significant increases in surface roughness and decreases in elastic modulus with immersion time, highlighting the need for thorough studies on early-stage enamel erosion.

SourceThe Korea Advanced Institute of Science and Technology (KAIST)·JournalJournal of the Mechanical Behavior of Biomedical Materials·DateJul 22, 2020

UAlberta researchers make real-time tumor tracking in radiation therapy 5 times faster

The study's lead researcher found that using a graphics processing unit (GPU) increased the speed of real-time tumor tracking by five times, improving accuracy over previous methods. This breakthrough could lead to safer and possibly fully automated radiation therapy in the future.

SourceUniversity of Alberta Faculty of Medicine & Dentistry·JournalIEEE Journal of Translational Engineering in Health and Medicine·DateJul 22, 2020

No honor among cyber thieves

A study examining online user activity on two carding forums reveals the vast majority of users aren't buyers or sellers but rather seek free tutorials, malware source codes, and hacking guides. Actual buyers and sellers comprise a fraction, primarily using stolen identity info for unauthorized purchases.

SourceWashington State University·JournalSocial Science Computer Review·DateJul 22, 2020