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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.1201180

Magnetic Bistability of Molecules in Homogeneous Solution at Room Temperature

S. Venkataramani; U. Jana; M. Dommaschk; F. D. Sönnichsen; F. Tuczek; R. Herges

<jats:p>A photoresponsive ligand is used to reversibly modulate the magnetic properties of a nickel compound.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 445-448

doi: 10.1126/science.1199421

Kinetic Isotope Effects for the Reactions of Muonic Helium and Muonium with H 2

Donald G. Fleming; Donald J. Arseneau; Oleksandr Sukhorukov; Jess H. Brewer; Steven L. Mielke; George C. Schatz; Bruce C. Garrett; Kirk A. Peterson; Donald G. Truhlar

<jats:p>Calculated reaction rates for two hydrogen isotopes, one 36 times heavier than the other, agree with experiments at 500 kelvin.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 448-450

doi: 10.1126/science.1197397

Enhanced Modern Heat Transfer to the Arctic by Warm Atlantic Water

Robert F. Spielhagen; Kirstin Werner; Steffen Aagaard Sørensen; Katarzyna Zamelczyk; Evguenia Kandiano; Gereon Budeus; Katrine Husum; Thomas M. Marchitto; Morten Hald

<jats:p>Water flow from the Atlantic Ocean into the Arctic through the Fram Strait is warmer than at any time in the past 2000 years.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 450-453

doi: 10.1126/science.1199113

The Southern Route “Out of Africa”: Evidence for an Early Expansion of Modern Humans into Arabia

Simon J. Armitage; Sabah A. Jasim; Anthony E. Marks; Adrian G. Parker; Vitaly I. Usik; Hans-Peter Uerpmann

<jats:p>Artifacts in eastern Arabia dating to 100,000 years ago imply that modern humans left Africa early, as climate fluctuated.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 453-456

doi: 10.1126/science.1196371

Phosphorylation of ULK1 (hATG1) by AMP-Activated Protein Kinase Connects Energy Sensing to Mitophagy

Daniel F. Egan; David B. Shackelford; Maria M. Mihaylova; Sara Gelino; Rebecca A. Kohnz; William Mair; Debbie S. Vasquez; Aashish Joshi; Dana M. Gwinn; Rebecca Taylor; John M. Asara; James Fitzpatrick; Andrew Dillin; Benoit Viollet; Mondira Kundu; Malene Hansen; Reuben J. Shaw

<jats:p>A protein kinase links energy stores to control of autophagy.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 456-461

doi: 10.1126/science.1200282

Effects of Experimental Seaweed Deposition on Lizard and Ant Predation in an Island Food Web

Jonah Piovia-Scott; David A. Spiller; Thomas W. Schoener

<jats:p>In a simple island ecosystem, a rare pulse of resource input alters the interaction between predator species.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 461-463

doi: 10.1126/science.1200387

Metagenomic Discovery of Biomass-Degrading Genes and Genomes from Cow Rumen

Matthias Hess; Alexander Sczyrba; Rob Egan; Tae-Wan Kim; Harshal Chokhawala; Gary Schroth; Shujun Luo; Douglas S. Clark; Feng Chen; Tao Zhang; Roderick I. Mackie; Len A. Pennacchio; Susannah G. Tringe; Axel Visel; Tanja Woyke; Zhong Wang; Edward M. Rubin

<jats:p>Metagenomic sequencing of biomass-degrading microbes from cow rumen reveals new carbohydrate-active enzymes.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 463-467

doi: 10.1126/science.1198946

Cleavage of NIK by the API2-MALT1 Fusion Oncoprotein Leads to Noncanonical NF-κB Activation

Shaun Rosebeck; Lisa Madden; Xiaohong Jin; Shufang Gu; Ingrid J. Apel; Alex Appert; Rifat A. Hamoudi; Heidi Noels; Xavier Sagaert; Peter Van Loo; Mathijs Baens; Ming-Qing Du; Peter C. Lucas; Linda M. McAllister-Lucas

<jats:p>An oncogenic fusion protein promotes lymphomagenesis by activating a noncanonical signaling pathway.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 468-472

doi: 10.1126/science.1199284

Intramembrane Cleavage of AMA1 Triggers Toxoplasma to Switch from an Invasive to a Replicative Mode

Joana M. Santos; David J. P. Ferguson; Michael J. Blackman; Dominique Soldati-Favre

<jats:p>Membrane proteins govern a change from invasion to replication of an intracellular parasite.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 473-477

doi: 10.1126/science.1199198

Big and Mighty: Preverbal Infants Mentally Represent Social Dominance

Lotte Thomsen; Willem E. Frankenhuis; McCaila Ingold-Smith; Susan Carey

<jats:p>Infants use size as a predictor in judging which contestant will win.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 477-480