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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

Fresh Misconduct Charges Hit Dutch Social Psychology

Frank van Kolfschooten

<jats:p>Data in the research of Jens Förster were manipulated, a Dutch national scientific integrity panel concludes.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 566-567

New Sites Bring the Earliest Americans Out of the Shadows

Ann Gibbons

<jats:p>Archaeologists are finding new evidence that Paleoindians spread throughout North and South America earlier than long believed—and even camped high in the Andes Mountains.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 567-568

'Sea Butterflies' Are a Canary for Ocean Acidification

Eli Kintisch

<jats:p>The shells of sea snails off the Pacific coast are dissolving, scientists report, raising new questions about the severity of ocean acidification.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 569-569

'Rejuvenation Factor' in Blood Turns Back the Clock in Old Mice

Jocelyn Kaiser

<jats:p>Three new studies found that giving old mice blood from young mice—or a factor found in young blood—improved the function of the aging animals' muscles and brains.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 570-571

Designer Microbes Expand Life's Genetic Alphabet

Robert F. Service

<jats:p>California researchers have created living microbes capable of incorporating and copying a new pair of letters in life's genetic alphabet.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 571-571

Maritime Ambitions

Mara Hvistendahl

<jats:p>As China builds a modern armada, it is pouring money into underwater archaeology and rewriting the history of its early exploits on the high seas.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 572-575

Breast Cancer and Environmental Research

Julia Green Brody; Margaret L. Kripke; Marion H. Kavanaugh-Lynch; Jeanne Rizzo; Michele R. Forman

Palabras clave: Multidisciplinary.

Pp. 577-577

Copper Limits: Opportunity Costs

John E. Tilton

Palabras clave: Multidisciplinary.

Pp. 577-578

Comment on “Revealing Nature’s Cellulase Diversity: The Digestion Mechanism of Caldicellulosiruptor bescii CelA”

Alexander V. Gusakov

<jats:p> Brunecky <jats:italic>et al</jats:italic> . (Reports, 20 December 2013, p. 1513) compared the cellulolytic activity of bacterial multimodular cellulase CelA with fungal Cel7A (cellobiohydrolase I from <jats:italic>Trichoderma reesei</jats:italic> ). If more active Cel7A from another fungus were used as a reference enzyme under optimal conditions with β-glucosidase added, the reported difference between bacterial and fungal enzymes would be less dramatic. </jats:p>

Palabras clave: Multidisciplinary.

Pp. 578-578

Copper Limits: Human Agency

Alfred J. Cavallo

Palabras clave: Multidisciplinary.

Pp. 578-578