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Science News Archive 2021 - Page 468


Page 468 of 510

Tracking cells with omnidirectional visible laser particles

Researchers at Harvard Medical School and Peking University introduce a novel technique for tracking individual cells using omnidirectional visible laser particles. The innovative method reduces orientation-dependent intensity fluctuations, allowing for blinking-free tracking of single cells under complex biological conditions.

Yale researchers develop injection to treat skin cancer

Researchers at Yale University have developed an injection treatment for skin cancer that uses polymer-based nanoparticles carrying chemotherapy agents. The treatment's bioadhesive properties allow it to kill cancer cells and stimulate the immune system, potentially eliminating the need for surgery.

SourceYale University·JournalProceedings of the National Academy of Sciences·DateFeb 2, 2021

The Lancet Child & Adolescent Health: 40% of countries show no progress in reducing cigarette smoking in adolescents over last 20 years

A study of over 1.1 million adolescents from 140 countries found that cigarette smoking decreased in 80 countries but remained unchanged or increased in 60 countries between 1999 and 2018. Other tobacco products like chewing tobacco and e-cigarettes also showed increased use in many countries.

SourceThe Lancet·JournalThe Lancet Child & Adolescent Health·DateFeb 2, 2021

COVID-19 lockdowns temporarily raised global temperatures

Research led by NCAR found that COVID-19 lockdowns caused a slight warming effect on the planet, with temperatures rising by 0.2-0.5 degrees Fahrenheit in some regions. The study highlights the complex influence of aerosol emissions on climate, which can either cool or warm the planet depending on the type and amount.

Fine tuned: adjusting the composition and properties of semiconducting 2D alloys

Researchers from Japan Advanced Institute of Science and Technology have successfully created 2D Si-Ge alloys with adjustable electronic properties. By adjusting the composition of these materials, they can fine-tune their band structure to suit various applications, opening doors for new electronics innovations.

SourceJapan Advanced Institute of Science and Technology·JournalPhysical Review Materials·DateFeb 2, 2021

Providing inclusive care for LGBTQ2SPIA+ cancer patients

Researchers found that healthcare professionals have knowledge gaps when caring for LGBTQ2SPIA+ cancer patients, affecting their ability to provide emotional support and tailored care. The study concludes that patient-centered care requires specific resources and education for radiation therapists.

SourceElsevier·JournalJournal of Medical Imaging and Radiation Sciences·DateFeb 2, 2021

Changes in economic prosperity, cardiovascular mortality

A study from 2010 to 2017 found that increased economic prosperity was associated with lower rates of cardiovascular mortality among middle-age U.S. adults. The researchers analyzed county-level data, revealing a significant positive correlation between economic growth and cardiovascular health outcomes.

SourceJAMA Network·JournalJAMA·DateFeb 2, 2021

NYUAD researchers propose programming to support adolescent mothers in areas of conflict

A bioecocultural approach aims to address the needs of adolescent mothers and their young children in conflict-affected contexts, considering neuroendocrine development during adolescence. The framework proposes culturally anchored peer engagement, continued education, and child care support to break intergenerational cycles of poverty.

SourceNew York University·JournalDevelopment and Psychopathology·DateFeb 2, 2021

South Africa: the rising temperatures will cost up to 20% of per capita GDP

A recent study predicts that climate change in South Africa will lead to a 20% decrease in per capita GDP by the end of the century. The researchers analyzed data on temperature changes and labor availability, finding that low-skilled workers are disproportionately affected, leading to a closing wage gap but reduced overall output.

Taking the fear out of driver education

A new study published in Risk Analysis found that fear-based Virtual Reality films depicting violent collisions lead to increased risk-taking among young drivers. In contrast, positively framed VR films result in the greatest reduction in risky driving behavior. This suggests that a positive approach may be more effective in promoting ...

SourceSociety for Risk Analysis·JournalRisk Analysis·DateFeb 2, 2021

Study finds revised concussion guidelines shorten duration of symptoms

A new study found that the revised concussion guidelines led to a significant reduction in symptom duration among young athletes. The adoption of active rest, recognizing pre-existing conditions, and educating athletes about recovery improved outcomes, with male athletes experiencing a median duration drop from 11 to 5 days and female ...

SourceAmerican Osteopathic Association·JournalJournal of Osteopathic Medicine·DateFeb 1, 2021