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Science News Archive April 2018 - Page 28


Page 28 of 42

Faba fix for corn's nitrogen need

Researchers found that faba bean cover crops can add a significant amount of nitrogen to the soil, reducing the need for commercial fertilizer by up to half. The timing and management of faba bean residues also play a crucial role in maximizing the benefits of this practice.

SourceAmerican Society of Agronomy·JournalAgronomy Journal·DateApr 11, 2018

Brain activity can predict success of depression treatment

Researchers at McLean Hospital have identified a method to predict depressed patients' treatment prognosis by analyzing brain activity in the rostral anterior cingulate cortex. The study showed that patients with higher activity before treatment are more likely to respond positively, allowing clinicians to tailor treatment approaches.

SourceMcLean Hospital·JournalJAMA Psychiatry·DateApr 11, 2018

Does age at menopause affect memory?

A study of over 1,300 women found that entering menopause at a later age was associated with better verbal memory skills. After adjusting for other factors, the researchers found a small but significant difference in memory scores, recalling an average of 0.09 additional words per year.

SourceAmerican Academy of Neurology·JournalNeurology·DateApr 11, 2018

It's not your fitness tracker -- it's you

A recent study published by the University of Southern California found that people from different countries have vastly different perceptions of their physical activity. The study, which tracked participants in the US, Netherlands, and England, revealed that Americans tend to overestimate their activity levels while Europeans underest...

SourceUniversity of Southern California·JournalJournal of Epidemiology and Community Health·DateApr 11, 2018

The dinosaur menu, as revealed by calcium

Researchers studied fossilized remains from Morocco and Niger to reconstruct the past's food chains, explaining how large predators coexisted. Calcium isotope analysis showed that carnivores shared resources by subtly hunting different prey types, such as herbivorous dinosaurs or fish.

SourceCNRS·DateApr 11, 2018

ACMG Foundation announces recipients of 2018 Shire/ACMG Foundation Next Generation Awards

The ACMG Foundation for Genetic and Genomic Medicine announced four recipients of the 2018 Shire/ACMG Foundation Next Generation Fellowship Awards. These awards provide funding for clinical genetics and genomics residency fellowships as well as medical biochemical genetics specialty fellowships, supporting training in medical genetics.

Biodiversity: All the colors of the rainbow

Researchers have discovered three new species of chameleons in Madagascar, showcasing the island's extraordinary biodiversity. The newly found Calumma uetzi features vibrant display colors when males interact with females, while a second species, Calumma juliae, is found only in a protected forest fragment under threat from deforestation.

SourceLudwig-Maximilians-Universität München·JournalZoological Journal of the Linnean Society·DateApr 11, 2018

Repeat spawning comes with tradeoffs for trout

Steelhead trout that spawn multiple times have higher lifetime reproductive success, but at the cost of increased mortality and energy expenditure. The study found that single spawners die after reproduction, while repeat spawners save energy for later migrations.

SourcePurdue University·JournalProceedings of the National Academy of Sciences·DateApr 11, 2018