A new model for disease research in Africa p.295

doi: 10.1038/d41586-019-00612-0

Embrace teams large and small to foster the health of research p.295

Small teams might be more likely to produce ‘disruptive research’, but science needs a wide range of group sizes to truly flourish.

doi: 10.1038/d41586-019-00558-3

Violent drug cartels stifle Mexican science p.303

Abandoned projects and delayed research have become common problems as security issues crop up across the country.

doi: 10.1038/d41586-019-00458-6

Antarctic voyage will explore ocean hidden under ice for 100,000 years p.304

Scientists on board German research icebreaker Polarstern hope to observe underwater ecosystem changing in real-time.

doi: 10.1038/d41586-019-00588-x

Gravitational-wave observatory LIGO set to double its detecting power p.305

A planned US$35-million upgrade could enable LIGO to spot one black-hole merger per hour by the mid-2020s.

doi: 10.1038/d41586-019-00573-4

Hungary’s scientists outraged by government budget grab p.306

Innovation ministry’s decision to issue grant call using money meant for Hungarian Academy of Sciences’ operations sparks protests.

doi: 10.1038/d41586-019-00586-z

Indian payment-for-papers proposal rattles scientists p.307

Researchers say the policy could intensify existing issues with research quality and misconduct.

doi: 10.1038/d41586-019-00514-1

High-flying pseudosatellites get their day in the sun p.308

Planes and airships that can soar through the stratosphere could enable new approaches to research.

doi: 10.1038/d41586-019-00561-8

This Nigerian doctor might just prevent the next deadly pandemic p.310

doi: 10.1038/d41586-019-00615-x

A new moon for Neptune p.328

doi: 10.1038/d41586-019-00576-1

How broken sleep promotes cardiovascular disease p.329

The link between sleep and cardiovascular disease is poorly understood. Findings in mice now show that disrupted sleep causes the brain to signal the bone marrow to boost white blood cell production, damaging blood vessels.

doi: 10.1038/d41586-019-00393-6

Small research teams ‘disrupt’ science more radically than large ones p.330

The application of a new citation metric prompts a reassessment of the relationship between the size of scientific teams and research impact, and calls into question the trend to emphasize ‘big team’ science.

doi: 10.1038/d41586-019-00350-3

Why neutrons and protons are modified inside nuclei p.332

doi: 10.1038/d41586-019-00577-0

Tumours use a metabolic twist to make lipids p.333

To survive and divide, cancer cells need a constant supply of lipid molecules called monounsaturated fatty acids. Tumours can achieve this by an unsuspected route that harnesses a metabolic pathway also used in hair follicles.

doi: 10.1038/d41586-019-00352-1

Biological clues to an enigmatic treatment for traumatic stress p.335

A treatment called eye-movement desensitization and reprocessing alleviates post-traumatic stress disorder through enigmatic mechanisms. A study in mice offers potential clues into the biological basis of this approach.

doi: 10.1038/d41586-019-00294-8

Genetic clues can be used to predict whether early-stage cancer will form an invasive tumour p.336

Early-stage cancerous growths can look similar under the microscope, and whether they will form an invasive tumour is hard to predict. Genomic profiles of these growths in the human lung now enable such a prediction to be made.

doi: 10.1038/d41586-019-00567-2

Neural circuits underlying a psychotherapeutic regimen for fear disorders p.339

doi: 10.1038/s41586-019-0931-y

PU.1 controls fibroblast polarization and tissue fibrosis p.344

doi: 10.1038/s41586-019-0896-x

The seventh inner moon of Neptune p.350

doi: 10.1038/s41586-019-0909-9

Modified structure of protons and neutrons in correlated pairs p.354

doi: 10.1038/s41586-019-0925-9

Waveguide-coupled single collective excitation of atomic arrays p.359

doi: 10.1038/s41586-019-0902-3

Interacting multi-channel topological boundary modes in a quantum Hall valley system p.363

doi: 10.1038/s41586-019-0913-0

Two-dimensional MoS₂-enabled flexible rectenna for Wi-Fi-band wireless energy harvesting p.368

doi: 10.1038/s41586-019-0892-1

Complex networks reveal global pattern of extreme-rainfall teleconnections p.373

doi: 10.1038/s41586-018-0872-x

Large teams develop and small teams disrupt science and technology p.378

doi: 10.1038/s41586-019-0941-9

Sleep modulates haematopoiesis and protects against atherosclerosis p.383

doi: 10.1038/s41586-019-0948-2

Spatial and temporal heterogeneity of mouse and human microglia at single-cell resolution p.388

doi: 10.1038/s41586-019-0924-x

Commonality despite exceptional diversity in the baseline human antibody repertoire p.393

doi: 10.1038/s41586-019-0879-y

High frequency of shared clonotypes in human B cell receptor repertoires p.398

doi: 10.1038/s41586-019-0934-8

Evidence for an alternative fatty acid desaturation pathway increasing cancer plasticity p.403

doi: 10.1038/s41586-019-0904-1

Directionality of dynein is controlled by the angle and length of its stalk p.407

doi: 10.1038/s41586-019-0914-z

Structure of the complex I-like molecule NDH of oxygenic photosynthesis p.411

doi: 10.1038/s41586-019-0921-0