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Science News Archive 2021 - Page 260


Page 260 of 510

UIC research identifies potential pathways to treating alcohol use disorder, depression

Researchers at UIC's Center for Alcohol Research in Epigenetics have discovered a key regulator of gene expression and anhedonia during alcohol withdrawal. Blocking STAT3 activity alleviates withdrawal-induced depression in rats, and similar results are seen in human postmortem hippocampus samples of individuals with alcohol use disorder.

SourceUniversity of Illinois Chicago·JournalTranslational Psychiatry·DateJun 14, 2021

New app tracks human mobility and COVID-19

Researchers developed an interactive web application to analyze connections between human mobility, government policies and COVID-19 cases on a global scale. The app shows the impact of COVID-19 on human movement patterns and informs decision-making for higher-level policies.

SourceUniversity of Miami·JournalJournal of Geovisualization and Spatial Analysis·DateJun 14, 2021

A frozen leap forward

Scientists at UC Santa Barbara and Regenerative Patch Technologies have developed a new cryopreservation method for stem cell-based therapy for age-related macular degeneration. The method allows for long-term storage and distribution of the implant, extending shelf life and increasing accessibility to patients.

SourceUniversity of California - Santa Barbara·JournalScientific Reports·DateJun 14, 2021

Persistence pays off in the human gut microbiome

Researchers investigated bacterial persistence in the human gut microbiome, identifying three dispersal strategies and finding that most strains are highly persistent. The study's results will inform targeted probiotic and treatment approaches to maintain a healthy gut microbiome.

SourceEarlham Institute·JournalCell Host & Microbe·DateJun 14, 2021

Model suggests surgery should precede chemotherapy for select patients with ovarian cancer

A new study published in Proceedings of the National Academy of Sciences suggests that surgery should precede chemotherapy for certain patients with ovarian cancer. The research used a mathematical model to examine treatment outcomes and found that complete debulking surgery followed by chemotherapy provides better results. For patient...

SourceNYU Langone Health / NYU Grossman School of Medicine·JournalProceedings of the National Academy of Sciences·DateJun 14, 2021

Scientists make highly maneuverable miniature robots controlled by magnetic fields

Researchers at Nanyang Technological University created millimetre-sized robots that can be controlled using magnetic fields to perform highly manoeuvrable manipulations. These robots improve on existing small-scale robots by optimizing their ability to move in six degrees-of-freedom, and can rotate 43 times faster than previous devices.

SourceNanyang Technological University·JournalAdvanced Materials·DateJun 14, 2021

PCF-based 'parallel reactors' unveils collective matter-light analogies of soliton molecules

Researchers develop parallel optical-soliton reactors to study multi-soliton dynamics, unveiling statistical rules that resemble classic chemical kinetics. The system enables on-demand synthesis and dissociation of soliton molecules, promoting a collective-level insight into soliton dynamics.

More than a bumpy ride: turbulence offers boost to birds

A Cornell University-led study reveals that birds can use turbulence to their advantage, offering a potential boost to the aerospace industry. The research found that birds' accelerations are highly irregular and fluctuating, similar to particles in turbulent airflows, allowing them to harness energy from wind speed.

SourceCornell University·JournalProceedings of the National Academy of Sciences·DateJun 14, 2021

Study reveals COVID-19 risk factors for those with IDD

A study of nearly 550 adults with IDD found that age, larger residential settings, Down syndrome, and chronic kidney disease were the most common risk factors for COVID-19 diagnosis. Heart disease was most associated with COVID-19 deaths. The study highlights the need for increased funding for IDD services to ensure better health outco...

SourceSyracuse University·JournalJAMA Network Open·DateJun 14, 2021

Depletion of Iran's aquifers

Groundwater extraction in Iran has declined by an average of 18% due to physical limits, while deep well extraction has increased, leading to further depletion. The study reveals widespread aquifer depletion and salinization across all 30 sub-basins, posing significant risks to the country's water resources.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateJun 14, 2021

Autopsy Study of Patients With/Without COVID-19

This autopsy study investigated skeletal muscle and myocardial inflammation in patients with COVID-19, compared to those dying from other causes. The findings suggest distinct inflammatory patterns in the two groups, which may help explain COVID-19 severity and mortality.

SourceJAMA Network·JournalJAMA Neurology·DateJun 11, 2021

Rice lab peers inside 2D crystal synthesis

The Rice University engineers have unveiled the process of MoS2's synthesis in a chemical vapor deposition (CVD) furnace. Their simulations showed that it takes three steps to deposit an atomically thin lattice onto a surface, involving sublimation, reaction with sulfur atoms, and crystallization.

SourceRice University·JournalACS Nano·DateJun 11, 2021

Black holes help with star birth

Satellite galaxies that orbit massive central galaxies can form new stars due to active black holes clearing their path through intergalactic gas. Researchers used systematic observations and cosmological simulations to find this counter-intuitive effect.

SourceMax-Planck-Gesellschaft·JournalNature·DateJun 11, 2021

Star's death will play a mean pinball with rhythmic planets

A study led by the University of Warwick predicts that four massive planets in a perfect rhythm will be destabilized and turned into a chaotic system when their sun becomes a white dwarf. The planets' movements will become highly uncertain, with even small changes having a significant impact on the outcome.

SourceUniversity of Warwick·JournalMonthly Notices of the Royal Astronomical Society·DateJun 11, 2021

Anticoagulation in patients hospitalized with COVID-19

This study examines the association of anticoagulation treatment with mortality rates in hospitalized COVID-19 patients, finding a significant link between anticoagulation and increased mortality. The study's findings suggest that anticoagulation therapy may not be beneficial for patients hospitalized with COVID-19.

SourceJAMA Network·JournalJAMA Network Open·DateJun 11, 2021

Vitamin D deficiency may increase risk for addiction to opioids and ultraviolet rays

A study published in Science Advances found that vitamin D deficiency may increase the risk of opioid addiction and excessive sun-seeking behavior. Researchers discovered that modulating vitamin D levels can change addictive behaviors to both UV and opioids, and that patients with low vitamin D levels are more likely to use opioids.

SourceMassachusetts General Hospital·JournalScience Advances·DateJun 11, 2021