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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

Glacial-Interglacial Indian Summer Monsoon Dynamics

An Zhisheng; Steven C. Clemens; Ji Shen; Xiaoke Qiang; Zhangdong Jin; Youbin Sun; Warren L. Prell; Jingjia Luo; Sumin Wang; Hai Xu; Yanjun Cai; Weijian Zhou; Xiaodong Liu; Weiguo Liu; Zhengguo Shi; Libin Yan; Xiayun Xiao; Hong Chang; Feng Wu; Li Ai; Fengyan Lu

<jats:p>Indian summer monsoon changes during the Pleistocene were influenced by dynamic effects originating in both hemispheres.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 719-723

Chemical Genomic Profiling for Antimalarial Therapies, Response Signatures, and Molecular Targets

Jing Yuan; Ken Chih-Chien Cheng; Ronald L. Johnson; Ruili Huang; Sittiporn Pattaradilokrat; Anna Liu; Rajarshi Guha; David A. Fidock; James Inglese; Thomas E. Wellems; Christopher P. Austin; Xin-zhuan Su

<jats:p>There are a limited number of ways that the malaria parasite can develop drug resistance.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 724-729

Nonreciprocal Light Propagation in a Silicon Photonic Circuit

Liang Feng; Maurice Ayache; Jingqing Huang; Ye-Long Xu; Ming-Hui Lu; Yan-Feng Chen; Yeshaiahu Fainman; Axel Scherer

<jats:p>An engineered metallic-silicon waveguide allows for direction-dependent light propagation.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 729-733

A Synthetic Model of the Mn 3 Ca Subsite of the Oxygen-Evolving Complex in Photosystem II

Jacob S. Kanady; Emily Y. Tsui; Michael W. Day; Theodor Agapie

<jats:p>A model compound sheds light on the puzzling role of calcium in the metal cluster that oxidizes water during photosynthesis.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 733-736

Spectroscopic Observation of Dual Catalytic Sites During Oxidation of CO on a Au/TiO 2 Catalyst

Isabel Xiaoye Green; Wenjie Tang; Matthew Neurock; John T. Yates

<jats:p>The low-temperature oxidation of carbon monoxide proceeds initially with oxygen molecules that bridge titanium and gold sites.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 736-739

Seasonal Flows on Warm Martian Slopes

Alfred S. McEwen; Lujendra Ojha; Colin M. Dundas; Sarah S. Mattson; Shane Byrne; James J. Wray; Selby C. Cull; Scott L. Murchie; Nicolas Thomas; Virginia C. Gulick

<jats:p>Rare meter-scale slope features on Mars might be explained by transient flows of liquid salty water.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 740-743

Reduced Interannual Rainfall Variability in East Africa During the Last Ice Age

Christian Wolff; Gerald H. Haug; Axel Timmermann; Jaap S. Sinninghe Damsté; Achim Brauer; Daniel M. Sigman; Mark A. Cane; Dirk Verschuren

<jats:p>Extreme rainfall was weaker and less frequent in East Africa during the last ice age.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 743-747

A 10,000-Year Record of Arctic Ocean Sea-Ice Variability—View from the Beach

Svend Funder; Hugues Goosse; Hans Jepsen; Eigil Kaas; Kurt H. Kjær; Niels J. Korsgaard; Nicolaj K. Larsen; Hans Linderson; Astrid Lyså; Per Möller; Jesper Olsen; Eske Willerslev

<jats:p>Sea-ice coverage near northern Greenland and in the western Arctic Ocean varied in opposition over much of the Holocene.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 747-750

Signal Perception in Frogs and Bats and the Evolution of Mating Signals

Karin L. Akre; Hamilton E. Farris; Amanda M. Lea; Rachel A. Page; Michael J. Ryan

<jats:p>Receiver perception limits the evolution of increasingly elaborate calls in túngara frogs.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 751-752

Extending the Carbon Chain: Hydrocarbon Formation Catalyzed by Vanadium/Molybdenum Nitrogenases

Yilin Hu; Chi Chung Lee; Markus W. Ribbe

<jats:p>The molybdenum nitrogenase enzyme can reduce carbon monoxide, albeit inefficiently, in addition to its native substrate, nitrogen.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 753-755