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Science News Archive 2021 - Page 510


Page 510 of 510

Elephant ivory continues to be disguised and sold on eBay

Researchers from the University of Kent's Durrell Institute of Conservation and Ecology found that elephant ivory is still being sold on eBay, often disguised as bone. The study reveals that only a small percentage of these items were removed by eBay, highlighting the ongoing challenge of combating illegal wildlife trade.

SourceUniversity of Kent·JournalTropical Conservation Science·DateJan 4, 2021

The true cost of chemotherapy

A new study from the University of East Anglia estimates that breast cancer chemotherapy in the UK results in over £248 million in annual costs. These costs include lost productivity and personal expenses such as wigs and medication. Better targeting of treatment could help reduce these unnecessary costs.

SourceUniversity of East Anglia·JournalBMJ Open·DateJan 4, 2021

Single-cell analysis of metastatic gastric cancer finds diverse tumor cell populations associated with patient outcomes

Researchers developed a gene expression signature that robustly predicts patient survival in patients with peritoneal carcinomatosis, a form of metastatic gastric cancer. The signature is associated with tumor cell populations and lineage compositions, offering potential for tailored treatment strategies.

Fires, flooding before settlement may have formed the Amazon's rare patches of fertility

New research suggests that phosphorous and calcium levels in Amazonian dark earth are orders of magnitude higher than in surrounding soil, correlating with 16 trace elements that indicate pre-settlement river flooding delivered nutrients. This finding challenges the long-held theory that controlled burning created these fertile sites.

SourceUniversity of Oregon·JournalNature Communications·DateJan 4, 2021