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Truly general chemical reactions work well regardless of the structural features and functional groups in the starting molecule. A new screening protocol speeds up the identification of such reactions in the field of asymmetric catalysis.
Around 20% of female hummingbirds have plumage that is characteristic of the males of the species. Evidence for why this happens offers a surprising perspective on how evolution helps to maintain colour variations.
It emerges that the SARS-CoV-2 virus has evolved to mimic one of the histone proteins that package DNA in the cell nucleus. This mimicry leads to disrupted gene transcription and a diminished antiviral response.
The acidity of the Arctic Ocean currently peaks in winter. A modelling study suggests that this peak could shift to the summer in the future — this is bad news for ecosystem functions, food webs and Indigenous communities.
Oscillations in the light emanating from three Sun-like stars reveal the presence of strong magnetic fields deep in their interiors. The discovery could explain a quirk of stellar dynamics that has so far eluded understanding.
Two groups have grown self-organizing models of mouse embryos from stem cells in vitro. The models mimic mid-gestation embryos, providing an unparalleled opportunity to study early embryonic development.
An analysis of faculty members employed at academic institutions in the United States reveals that most employees were trained at just a few universities. The finding provides insights into how hiring perpetuates inequalities.
Efforts to probe the biological functions of carbohydrates have long been limited by the lack of such molecules with well-defined structures. An automated carbohydrate synthesizer has been developed that could remedy this.
The nomenclature for human multicellular models of nervous system development and disease, including organoids, assembloids and transplants, is discussed and a consensus framework is presented.
Observations reveal the presence of large volumes of ionized gas surrounding four galaxy clusters. The properties of these ‘megahaloes’ are distinct from those of similar haloes near the clusters, implying different formation mechanisms.
Scarce evidence indicates that key evolutionary steps for jawed vertebrates occurred during or before the Silurian period, 444 million to 419 million years ago. Fossil finds pull back the curtain on this interval.
An experimental platform that uses two different tools for controlling neutral atoms with laser light combines speed with scalability. The approach provides a crucial step towards realizing innovative quantum algorithms and simulations.
How certain subgroups of a childhood brain tumour called a medulloblastoma arise has been unclear. Evidence now implicates a cell type found only in developing human brains as the originator of these tumours.
A structure with precisely engineered layers produces a giant strain in an electric field. The interplay between structural distortions and electric dipoles at the interfaces between layers could aid material and device design.
Analysis of early human embryos reveals that DNA duplication after fertilization is highly inefficient. This causes DNA damage, chromosome breaks and abnormal numbers of chromosomes, impairing embryo development.
The ozonolysis reaction is a classic of organic synthesis, but involves the formation of potentially explosive reaction intermediates. A modern, safer spin on this process makes use of previously overlooked chemistry.
