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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

naturales

Ciencias naturales

Tabla de contenidos

doi: 10.1126/science.1198543

The Bonding Electron Density in Aluminum

Philip N. H. Nakashima; Andrew E. Smith; Joanne Etheridge; Barrington C. Muddle

<jats:p>A combination of microscopy and first-principle calculations is used to study the bonding charge density in aluminum.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 1583-1586

doi: 10.1126/science.1200177

Revealing Extraordinary Intrinsic Tensile Plasticity in Gradient Nano-Grained Copper

T. H. Fang; W. L. Li; N. R. Tao; K. Lu

<jats:p>Nanometer-sized grain copper confined by a graded substrate leads to a material with both high strength and high ductility.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 1587-1590

doi: 10.1126/science.1201121

Self-Recognition Among Different Polyprotic Macroions During Assembly Processes in Dilute Solution

Tianbo Liu; Melissa L. K. Langston; Dong Li; Joseph M. Pigga; Céline Pichon; Ana Maria Todea; Achim Müller

<jats:p>Differences in surface charge and water mobility allow slightly different inorganic macroions to self-assemble separately.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 1590-1592

doi: 10.1126/science.1200109

Widespread Persistent Thickening of the East Antarctic Ice Sheet by Freezing from the Base

Robin E. Bell; Fausto Ferraccioli; Timothy T. Creyts; David Braaten; Hugh Corr; Indrani Das; Detlef Damaske; Nicholas Frearson; Thomas Jordan; Kathryn Rose; Michael Studinger; Michael Wolovick

<jats:p>A large fraction of the ice at Dome A, Antarctica, did not form by the usual process of snowfall compaction.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 1592-1595

doi: 10.1126/science.1200183

Early Pleistocene Presence of Acheulian Hominins in South India

Shanti Pappu; Yanni Gunnell; Kumar Akhilesh; Régis Braucher; Maurice Taieb; François Demory; Nicolas Thouveny

<jats:p> Dates from a site in southeast India imply an early migration of <jats:italic>Homo</jats:italic> through Eurasia about 1.1 to 1.5 million years ago. </jats:p>

Palabras clave: Multidisciplinary.

Pp. 1596-1599

doi: 10.1126/science.1201855

The Buttermilk Creek Complex and the Origins of Clovis at the Debra L. Friedkin Site, Texas

Michael R. Waters; Steven L. Forman; Thomas A. Jennings; Lee C. Nordt; Steven G. Driese; Joshua M. Feinberg; Joshua L. Keene; Jessi Halligan; Anna Lindquist; James Pierson; Charles T. Hallmark; Michael B. Collins; James E. Wiederhold

<jats:p>A large artifact assemblage dating to 15,000 years ago lies beneath a Clovis assemblage in central Texas.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 1599-1603

doi: 10.1126/science.1200305

Dental Occlusion in a 260-Million-Year-Old Therapsid with Saber Canines from the Permian of Brazil

Juan Carlos Cisneros; Fernando Abdala; Bruce S. Rubidge; Paula Camboim Dentzien-Dias; Ana de Oliveira Bueno

<jats:p> <jats:italic>Tiarajudens</jats:italic> extends the date of dental occlusion and suggests why the members of this Permian group were such diverse and successful herbivores. </jats:p>

Palabras clave: Multidisciplinary.

Pp. 1603-1605

doi: 10.1126/science.1199343

Social and Ecological Synergy: Local Rulemaking, Forest Livelihoods, and Biodiversity Conservation

Lauren Persha; Arun Agrawal; Ashwini Chhatre

<jats:p>Participation in tropical forest governance by local people results in positive outcomes for conservation and subsistence.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 1606-1608

doi: 10.1126/science.1201079

Impacts of Salmon on Riparian Plant Diversity

Morgan D. Hocking; John D. Reynolds

<jats:p>A survey of Canadian forests reveals the effects of nutrient subsidies from salmon on plant community structure.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 1609-1612

doi: 10.1126/science.1198443

CD40 Agonists Alter Tumor Stroma and Show Efficacy Against Pancreatic Carcinoma in Mice and Humans

Gregory L. Beatty; Elena G. Chiorean; Matthew P. Fishman; Babak Saboury; Ursina R. Teitelbaum; Weijing Sun; Richard D. Huhn; Wenru Song; Dongguang Li; Leslie L. Sharp; Drew A. Torigian; Peter J. O’Dwyer; Robert H. Vonderheide

<jats:p>CD40 immunotherapy shows efficacy in treating pancreatic cancer in mice and humans by eliciting antitumor immunity.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 1612-1616