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Science News Archive November 2019 - Page 24


Page 24 of 41

Teaching group work to students with autism

A study by Kristina Scott found that a structured group work protocol increased social interactions among four children with ASD, aged 10-11, who had been excluded from peer groups. The protocol helped them maintain meaningful conversations with peers, although three of the subjects returned to baseline after the experiment.

SourceDe Gruyter·JournalOpen Education Studies·DateNov 13, 2019

Climate change influenced rise and fall of Northern Iraq's Neo-Assyrian Empire

A new study suggests that climate change played a role in the collapse of the Neo-Assyrian Empire by exacerbating agricultural productivity declines. The research used high-resolution paleoclimate records from northern Iraq to show that a megadrought may have encouraged invading armies and led to political unrest.

Analysis of melanoma in US by age groups

A study analyzing US melanoma data found a decline in adolescent and young adult cases between 2006 and 2015, while older adults experienced an increase in melanoma rates during the same period. The research used registry data to determine age-specific annual rates of melanoma.

SourceJAMA Network·JournalJAMA Dermatology·DateNov 13, 2019

Use changes after recreational marijuana legalization

After recreational marijuana legalization, past-year cannabis use disorder among 12-17 year-olds increased from 2.18% to 2.72%. Frequent marijuana use among 26+ year-olds also increased, from 2.13% to 2.62%, and those with cannabis disorder rose from 0.90% to 1.23%. No association found among 18-25 year-olds.

SourceJAMA Network·JournalJAMA Psychiatry·DateNov 13, 2019

Rising from the ashes

A new study reveals European ash has moderately good resistance to the Emerald Ash Borer (EAB), a beetle that has devastated ash species in the USA and some parts of Russia. The research found that European ash can restrict EAB development, while also exhibiting similar resistance to Manchurian ash.

SourceJohn Innes Centre·JournalPlants People Planet·DateNov 13, 2019

Puberty may offer window to reset effects of early deprived care on stress-response system

A new study found that puberty may offer a window of opportunity to recalibrate cortisol responses in children who experienced early life deprivation, such as institutional care. As these children age, their stress hormone levels increase and become more responsive to stress, similar to those who were not affected by deprivation.

SourceUniversity of Minnesota·JournalProceedings of the National Academy of Sciences·DateNov 13, 2019

New technique aims to improve imaging of cells

Researchers at Rensselaer Polytechnic Institute developed a new deep neural network to improve fluorescence lifetime imaging, enabling rapid and detailed analysis of cellular interactions in cancer cells. This technique requires less light while producing detailed images, bringing the field closer to clinical use for precision medicine.

SourceRensselaer Polytechnic Institute·JournalProceedings of the National Academy of Sciences·DateNov 13, 2019

Ten chemistry start-ups to watch

The American Chemical Society has identified 10 emerging start-ups revolutionizing the field of chemistry, from pharmaceuticals to green chemistry processes. These companies are addressing global issues such as microcontaminant removal, sustainable materials, and climate change.

SourceAmerican Chemical Society·JournalChemical & Engineering News·DateNov 13, 2019

Tuna carbon ratios reveal shift in food web

A recent study found that the ratio of carbon isotopes in tuna has declined substantially since 2000, indicating shifts in phytoplankton populations. This change may be linked to increased ocean stratification and fossil fuel carbon capture, which could impact the marine food web.

SourceDuke University·JournalGlobal Change Biology·DateNov 13, 2019

Using cardiac-specific biomarkers to predict cardiovascular disease risk early

A review article highlights traditional and emerging cardiac-specific biomarkers to identify early risk factors for cardiovascular disease in childhood obesity. These biomarkers, such as cardiac troponins and natriuretic peptides, may help target treatment to high-risk individuals, reducing the risk of adult-onset cardiovascular disease.

SourceMary Ann Liebert, Inc./Genetic Engineering News·JournalMetabolic Syndrome and Related Disorders·DateNov 12, 2019