Stanford University

Located between San Francisco and San Jose in the heart of Silicon Valley, Stanford University is recognized as one of the world’s leading research and teaching institutions. Stanford is particularly noted for its openness to multidisciplinary research, not only within its schools and departments, but also in its laboratories, institutes, libraries and research centers.

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Un indígena yanomami protesta contra la minería ilegal en una manifestación en Brasilia, durante el gobierno de Bolsonaro, en 2022: la minería ilegal de oro puede propagar la malaria de diversas maneras, como con la tala de bosques en las riberas de los ríos y el transporte del parásito a otras zonas del país. AP Photo/Eraldo Peres

Cómo la minería ilegal de oro ha provocado un repunte de la malaria en la Amazonía

Un aumento de tan solo el 0,03 % en la minería ilegal de oro se asocia a un incremento del 20 al 46 % en la incidencia local de la malaria en las tierras yanomami, en la Amazonía brasileña.
An Indigenous man with a phrase in Portuguese painted on his back that translates to “Mining Kills,” participates in a protest against the increase of mining activities that are encroaching on his land, in front of the Ministry of Mines and Energy in Brasilia, Brazil, in 2022. AP Photo/Eraldo Peres

Illegal gold mining causes surges in malaria in the Amazon, and the association is far worse than we suspected

An increase of just 0.03% in illegal gold mining is associated with a 20 to 46% increase in the local incidence of malaria in Yanomami lands in the Brazilian Amazon.
Indio Yanomami protesta contra o garimpo em manifestação em Brasília, durante o governo Bolsonaro, em 2022: a mineração ilegal de ouro pode disseminar a malária de diversas maneiras. Entre elas, abrindo clareiras nas margens dos rios; transportando o parasita para outras áreas do país; e enfraquecendo o sistema imunológico de indígenas, ribeirinhos e deles próprios, com o uso indiscriminado de mercúrio. AP Photo/Eraldo Peres

Entenda como a mineração ilegal de ouro na Amazônia é causa direta de surtos de malária entre indígenas

Um aumento de apenas 0,03% na mineração ilegal de ouro está associado a um aumento de 20 a 46% na incidência local de malária em terras Yanomami, na Amazônia brasileira
In Ghana, there are persistent disputes between industrial and small-scale fishers over access to the sea. Patrick Meinhardt/AFP/Getty Images

Disputes over Africa’s ocean resources: here’s what could help avoid them

As ocean uses expand, it will be necessary to reduce disputes because they disrupt the environmental sustainability and equity central to a blue economy.
Photo d’Abell 209, un immense amas de galaxies déformant l’espace-temps, situé à 2,8 milliards d’années-lumière dans la constellation de la Baleine, prise en juillet 2025 par le télescope spatial Hubble. (NASA)

La tension de Hubble : peut‑on résoudre l’un des plus grands mystères de l’univers grâce aux champs magnétiques ?

Deux des meilleures méthodes pour mesurer le taux d’expansion de l’univers donnent des résultats qui ne concordent pas. Ce problème est connu sous le nom de « tension de Hubble ».
An image taken by the Hubble Space Telescope in July 2025 of Abell 209, a massive spacetime-warping cluster of galaxies located 2.8 billion light-years away in the constellation Cetus. (NASA)

The Hubble tension: How magnetic fields could help solve one of the universe’s biggest mysteries

Two ways of measuring how fast the universe is expanding disagree, a puzzle known as the Hubble tension. Tiny magnetic fields from the Big Bang may offer a solution.
As vacinas do calendário infantil norte-americano foram testadas durante décadas em ensaios controlados envolvendo milhões de participantes, e são constantemente monitoradas quanto à sua segurança. Apesar disso, autoridades de saúde - lideradas pelo secretário do Departamento de Saúde e Serviços Humanos, o negacionista Robert F. Kennedy Jr (foto acima) - reduziram de 17 para 11 o número de vacinas recomendadas no país. AP Photo/Jacquelyn Martin

Robert Kennedy Jr. destrói calendário de vacinação infantil dos EUA, ignorando décadas de segurança e eficácia

Em uma medida sem precedentes, as autoridades de saúde americanas reduziram o número de vacinas rotineiramente recomendadas para crianças no país de 17 para 11
Children today receive more vaccines than children did in the past, but due to advances in vaccine technology, today’s shots contain far fewer immune-stimulating molecules. SDI Productions/iStock via Getty Images Plus

RFK Jr. wants to scrutinize the vaccine schedule – but its safety record is already decades long

Federal officials are questioning the safety of the vaccine series children receive. Here’s the story of how the childhood vaccine schedule came about.
Un panneau indique la fermeture des services fédéraux lors du « shutdown » gouvernemental de 2013. AP Photo/Susan Walsh

Nouvelle paralysie des administrations fédérales aux États‑Unis : ce que nous enseigne le « shutdown » de 2013

D’après une étude menée sur le shutdown de 2013 aux États-Unis, qui a duré 16 jours, ce type de blocage engendre des effets négatifs durables et conduit à un affaiblissement des performances du gouvernement.
The U.S. government shut down on Oct. 1 after Congressional leaders were unable to strike a deal. Photo by Kent Nishimura/Getty Images

Even a government shutdown that ends quickly would hamper morale, raise costs and reduce long‑term efficiency in the federal workforce

A study of the 2013 shutdown that lasted 16 days revealed long-term negative effects on federal workers and led to weakened government performance.

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