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Disponibilidad
Institución detectada Período Navegá Descargá Solicitá
No detectada desde mar. 1997 / hasta dic. 2023 Science Journals

Información

Tipo de recurso:

revistas

ISSN impreso

0036-8075

ISSN electrónico

1095-9203

Editor responsable

American Association for the Advancement of Science (AAAS)

País de edición

Estados Unidos

Fecha de publicación

Cobertura temática

Tabla de contenidos

Staying the same across a billion years

G. Riddihough

Palabras clave: Multidisciplinary.

Pp. i-876

Oceans and Earth's habitability

Marcia McNutt

<jats:p>On 8 June, the United Nations Educational, Scientific and Cultural Organization (UNESCO) celebrates World Oceans Day, a fitting occasion to remind ourselves of the essential role of the oceans in making Earth a habitable planet. We have had an official day of celebration for the oceans only since December 2008. In contrast, Earth Day has been celebrated every year since 1970. Conceived by U.S. Senator Gaylord Nelson in the aftermath of the 1969 Santa Barbara oil spill, Earth Day became a focus for the growing environmental movement (it became an international event in 1990) and the catalyst that led to the Clean Air, Clean Water, and Endangered Species Acts in the United States. Imagine what might be accomplished if World Oceans Day could similarly inspire actions for improving the state of the oceans worldwide.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 841-841

This week's section

<jats:p>A roundup of weekly science policy and related news.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 842-843

Leaf bacteria fertilize trees, researchers claim

Elizabeth Pennisi

<jats:p>Free-living nitrogen fixers defy textbooks and could boost crop production.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 844-845

Alarm over a sinking delta

Charlie Schmidt

<jats:p>Rise and Fall project seeks ways to slow land subsidence in Vietnam's populous Mekong delta.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 845-846

Canadian registry to track thousands of pot smokers

Lizzie Wade

<jats:p>Data could answer questions about safety, efficacy, and dosage.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 846-846

Ancient DNA pinpoints Paleolithic liaison in Europe

Ann Gibbons

<jats:p>Romanian fossil was the great-great-great-grandson of a Neandertal—but an evolutionary dead end.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 847-847

E.U. commission promises to listen to scientists

Tania Rabesandratana

<jats:p>Panel of seven top scientists to act as watchdog of new advice system.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 848-848

‘Rejuvenating’ protein doubted

Jocelyn Kaiser

<jats:p>Factor reported to explain how young blood restores muscle has opposite effect in another lab.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 849-849

The drug push

Kelly Servick

<jats:p>As fears of drug-resistant bacteria loom, governments try to coax companies back to the field.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 850-853