The ovary always keeps the same share of its reserve in activation: 14%, from puberty to the end of reproductive life

By mapping more than 85,000 oocytes in whole mouse ovaries using light-sheet microscopy, a CRG team shows that the share of the reserve undergoing activation stays close to 14% while the stock itself collapses by more than an order of magnitude. Regulation appears proportional rather than absolute.

August 12, 2026

Severe COVID wakes dormant viruses — and one of them marks long COVID

Across 1,154 hospitalized patients, nearly one in two sees a dormant chronic virus reactivate during acute COVID — herpes, cytomegalovirus, Epstein-Barr, but also the inconspicuous anelloviruses. The latter are associated, during convalescence, with the form of long COVID marked by physical disability. Association, not causation: the authors say so in black and white.

August 12, 2026

A 1936 prediction read in the X-rays of a magnetar: the vacuum polarizes

The X-rays from magnetar 1E 1547.0−5408 are 65% polarized at 2 keV, reaching nearly 80% at certain phases — a level that surface models without refraction cannot explain. Vacuum birefringence, predicted by QED almost 90 years ago, offers the most natural reading. Strong evidence, not yet direct confirmation.

August 12, 2026

A 0.42 nm oxide buffer sidesteps the trade-off between gate control and carrier transport in MoS₂ transistors

A Taiwanese team led by NYCU and TSMC turns the interface between a monolayer semiconductor and its gate dielectric into a functional part of the transistor, sidestepping the long-standing trade-off between dielectric thinness and carrier transport.

August 10, 2026

A radial-nanochannel carbon makes it possible to heat a platinum-cobalt catalyst to 1000 °C without coarsening it

Ordering a platinum-cobalt alloy requires heat; but heat coarsens the nanoparticles and ruins their active surface. A team at Washington University in St. Louis reports breaking that trade-off by confining the particles inside carbon channels.

August 10, 2026

The magnetic field that switches on superconductivity: a family of states in rhombohedral graphene

In rhombohedrally stacked graphene, a team from MIT and Basel describes a family of neighboring superconductors: four characterized in the bare pentalayer, five further regions obtained by simple contact. The three that respond to the field withstand 8.5 T in the plane — dozens of times the limit that ought to destroy them — and one of them appears only at high field.

August 7, 2026

FNIP1 — when breaking a gene protects metabolism

In more than a million people, ultra-rare variants that switch off the FNIP1 gene come with a favourable lipid profile, a higher share of lean mass and less visceral fat, alongside roughly 60% lower odds of cardiometabolic disease. In mice, by contrast, switching off FNIP1 alone does nothing: it is the whole pathway that has to be cut.

August 7, 2026

Pig myoglobin in a lettuce leaf: the chloroplast can become a meat-protein factory

A team at Imperial College has made tobacco and lettuce chloroplasts produce porcine myoglobin — 2.7% and 1.5% of soluble protein. The protein folds correctly, but only about one molecule in three captures its heme. The authors see a possible bottleneck in pigment availability; their own arithmetic also invites a look at how it is inserted.

August 6, 2026

Combinatorial biosynthesis of HDAC inhibitors: the code of the docking domains elucidated

A team from Warwick and Monash identifies the molecular mechanism that lets bacteria assemble an à la carte family of depsipeptide anticancer agents — a foundation for engineering variants, still far from the clinic.

August 5, 2026

NeuroVFM: a neuroimaging foundation model trained on the hospital's raw data

A 3D model whose encoder is trained without labels on 5.24 million routine CT and MRI volumes reaches 92.68% AUROC across 82 CT diagnoses and 92.49% across 74 MRI diagnoses. With the archive held identical, it is the training objective — latent-space prediction — that opens the gap.

August 5, 2026

The Bessemer Process — Mass Steel Transforms Civilization

On 13 August 1856, Henry Bessemer presented to the British Association for the Advancement of Science a process that converts 5 tonnes of pig iron into steel in 20 minutes by blowing air through it — cutting the price of steel by a factor of 6 to 8, from ~£40-60 to £7 per tonne.

August 4, 2026

AlphaFold 3 — Universal Prediction of Biomolecular Interactions

In May 2024, DeepMind publishes AlphaFold 3. Beyond isolated proteins, the model predicts the structures of protein–DNA, protein–RNA, and protein–ligand complexes with accuracy surpassing all existing methods — opening the door to large-scale computational drug design.

August 4, 2026

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