Patchy nanoparticles by atomic stencilling
Chemicals All chemicals were used without further purification after purchase: gold(III) chloride trihydrate (≥99.9% trace metals basis, HAuCl4·3H2O,…
How emotional memories are engraved on the brain, with surprising helper cells
A type of brain cell called astrocytes play a crucial role in stabilizing memories in the brain.Credit: Jose…
Controlled angular correlations and polarization speckle in scattering birefringent films
A transverse spatially random monochromatic electric field vector, E(r,t), is composed of two mutually orthogonal polarization components \(\mathrm…
Japan declares a flu epidemic — what this means for other nations
Cases of influenza are surging in Japan.Credit: Kota Kawasaki/Yomiuri Shimbun via AP/Alamy Japan’s health authorities have declared an…
Sex and smoking bias in the selection of somatic mutations in human bladder
Sample collection Two epithelial brushes (2–3 cm2) from the bladder top (dome) and the bladder floor (trigone) were obtained…
Polygenic and developmental profiles of autism differ by age at diagnosis
Department of Psychiatry, University of Cambridge, Cambridge, UK Xinhe Zhang, Yuanjun Gu, Sharon A. S. Neufeld, Simon Baron-Cohen & Varun Warrier Autism Research…
Should genetically modified wildlife be banned? Scientists weigh the risks
A corroboree frog is tested for chytrid fungus. Introducing genetic changes to these frogs could help to make…
Somatic mutation and selection at population scale
Cohort selection The TwinsUK study contains around 16,000 participants. From a preselection of 4,800 donors, we invited 1,796…
First proposed blood test for chronic fatigue syndrome: what scientists think
Scientists have developed a blood test that analyses epigenetic changes in immune cells. They say it could be…
‘Google for DNA’ brings order to biology’s big data
MetaGraph indexes and vast archives of DNA, RNA, and protein sequences. Scientists can search the archives and trace…