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In this issue 15 papers · 5 free

01 Nature Amazon carbon emissions driven by human actions amplified by droughts Free
02 PLOS Medicine Analysis of the impact of naturally-acquired immunity on Shigella vaccine performance to inform clinical trials: A simulation-based modeling study Free
03 Proceedings of the National Academy of Sciences Naturalistic spatial education engages distinct neural processes for mental rotation, cognitive load, and linguistic demands Free
04 The Astrophysical Journal Estimation of Dust Mass from Infrared Emission and Extinction of Supernova Remnants: G93.7-0.2, G109.1-1.0, G156.2+5.7, and G166.0+4.3 Free
05 Nature The anatomy of a personal health agent Free
06 Nature Cold activates a BH2 metabolic network promoting longevity and proteostasis Subscribers
07 PNAS Nexus Machine learning detection of small Strombolian eruptions in noisy multi-temporal infrared images: Toward continuous monitoring Subscribers
08 Nature Communications HRDPath: an explainable multi-model deep learning architecture for predicting homologous recombination deficiency from histopathology images Subscribers
09 Proceedings of the National Academy of Sciences C1ql2 gates stress vulnerability by regulating microglia-mediated synaptic pruning in the BLA-vHPC circuit Subscribers
10 eLife An integrated human forebrain organoid reveals microglia-mediated CD8+ T cell recruitment and neuroimmune dysfunction in Alzheimer’s disease pathology Subscribers
11 Nature Ecology & Evolution Drift, selection and recombination bias drive the evolution of a non-ribosomal peptide Subscribers
12 Physical Review Letters Phase-Space Microscopes for Quantum Gases: Imaging Conjugate Variables and Momentum-Weighted Densities Subscribers
13 Nature Communications Concentration‑dependent switching between ligand‑like and solvent‑like lipid regulation in a model ion channel Subscribers
14 Nature Communications Strain-engineered fabrication of high-density aligned graphene-based nanoscrolls via UV-tunable adhesive tapes Subscribers
15 Proceedings of the National Academy of Sciences Linguistic intervention unlocks the economic gains of diversity Subscribers

The papers Read free

Nature·21 October 2026

Luciana V. Gatti, Camilla L. Cunha et al.

The Amazon now releases more carbon than it absorbs, mostly from fires and deforestation.

For 15 years, scientists measured carbon dioxide in the air above the Amazon. They found the forest now releases about 0.32 billion tons of carbon each year, mainly from fires. Cutting down trees and damaging forests keeps emissions high even in calm years. Hot, dry years, often tied to El Nino, push emissions even higher through bigger fires.

The number 0.32 billion tons of carbon per year

The average yearly carbon release from the Amazon over 15 years, based on air measurements.

Air measurements only, over 15 years, cannot pin exact causes.

Integrity screen: passed (3 checks) Checked 28 October 2026. Luciana V. Gatti, Camilla L. Cunha et al., Amazon carbon emissions driven by human actions amplified by droughts Read the source

PLOS Medicine·21 October 2026

Avnika B. Amin, Maria Garcia Quesada et al.

In computer simulations, most Shigella vaccine trial designs made the vaccine look weaker than it truly is.

Children in places with lots of Shigella germs often build up natural protection from repeated infections. This can make unvaccinated kids look almost as protected as vaccinated kids in a trial. That makes the vaccine look weaker than it really is. Computer models tested six ways of running a Shigella vaccine trial. Only one method, which actively checks kids for infection and counts outcomes a simple way, gave accurate results every time. The other five methods underestimated how well the vaccine worked, by up to 20 percentage points, and the errors got worse in places with more disease.

The number up to 20 percentage points

How much five of six tested trial designs underestimated true vaccine protection against Shigella.

Simulation only, not a real trial, based on limited natural immunity data.

Integrity screen: passed (3 checks) Checked 30 October 2026. Avnika B. Amin, Maria Garcia Quesada et al., Analysis of the impact of naturally-acquired immunity on Shigella vaccine performance to inform clinical trials: A simulation-based modeling study Read the source

Proceedings of the National Academy of Sciences·21 October 2026

Eloise B. Gacetta, Marissa L. Laws et al.

In a brain scan study, one brain region did most of the work for spatial thinking during a real lesson.

Brains learning a real spatial lesson split the work. One brain area near the top and back of the head handles space and shapes. Other areas handle general effort and word understanding. These areas worked together but each had its own job.

What it could change A brain scan shows separate brain areas tracking space, effort, and words during one real lesson.

This shows how the brain splits up tasks during actual learning, not a simple lab test.

Sample size unknown, brain scan study only, not yet tied to real learning outcomes.

Integrity screen: passed (3 checks) Checked 22 October 2026. Eloise B. Gacetta, Marissa L. Laws et al., Naturalistic spatial education engages distinct neural processes for mental rotation, cognitive load, and linguistic demands Read the source

The Astrophysical Journal·21 October 2026

Zhe 哲 Zhang 张, Jun 军 Li 李 et al.

In space dust clouds from old exploded stars, two weighing methods gave different mass answers.

Exploding stars leave behind clouds of space dust. Scientists can weigh this dust in two ways: by how it blocks starlight, or by the heat it gives off. For four exploded stars in our galaxy, these two methods gave different weight answers. Extra dust clouds sitting in front of or behind the targets likely got mixed into the measurements by mistake.

The number 90 to 400 times the Sun's mass

The amount of dust estimated from heat glow around four exploded stars.

Four star remnants only, measurements disagree due to background clutter.

Integrity screen: passed (3 checks) Checked 26 October 2026. Zhe 哲 Zhang 张, Jun 军 Li 李 et al., Estimation of Dust Mass from Infrared Emission and Extinction of Supernova Remnants: G93.7-0.2, G109.1-1.0, G156.2+5.7, and G166.0+4.3 Read the source

Nature·21 October 2026

A. Ali Heydari, Ken Gu et al.

A multi-part AI system turns wearable and medical data into personal health advice.

An AI system combines data from fitness trackers, health apps, and medical records. It gives people health advice that fits their own situation. The system uses three helper programs. One studies your personal health data over time. One applies medical knowledge to your case. One acts like a coach that sets goals and tracks your progress.

The number 7,000+ annotations, 1,350 hours

The scale of expert and user testing used to check the health AI's answers.

Lab and benchmark tests only, not real patient outcomes yet.

Integrity screen: passed (3 checks) Checked 30 October 2026. A. Ali Heydari, Ken Gu et al., The anatomy of a personal health agent Read the source

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Nature·21 October 2026

Hyun Ju Lee, Cansu Doğan et al.