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Science
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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
1880-
Cobertura temática
Tabla de contenidos
Three-Dimensional Orientation Mapping in the Transmission Electron Microscope
H. H. Liu; S. Schmidt; H. F. Poulsen; A. Godfrey; Z. Q. Liu; J. A. Sharon; X. Huang
<jats:p>Electron microscopy is used to nondestructively map the three-dimensional grain orientations in nanocrystalline aluminum.</jats:p>
Palabras clave: Multidisciplinary.
Pp. 833-834
Silver-Catalyzed C-C Bond Formation Between Methane and Ethyl Diazoacetate in Supercritical CO 2
Ana Caballero; Emmanuelle Despagnet-Ayoub; M. Mar Díaz-Requejo; Alba Díaz-Rodríguez; María Elena González-Núñez; Rossella Mello; Bianca K. Muñoz; Wilfried-Solo Ojo; Gregorio Asensio; Michel Etienne; Pedro J. Pérez
<jats:p>Supercritical carbon dioxide solvent facilitates transformation of the generally inert carbon-hydrogen bonds in methane.</jats:p>
Palabras clave: Multidisciplinary.
Pp. 835-838
Massive CO 2 Ice Deposits Sequestered in the South Polar Layered Deposits of Mars
Roger J. Phillips; Brian J. Davis; Kenneth L. Tanaka; Shane Byrne; Michael T. Mellon; Nathaniel E. Putzig; Robert M. Haberle; Melinda A. Kahre; Bruce A. Campbell; Lynn M. Carter; Isaac B. Smith; John W. Holt; Suzanne E. Smrekar; Daniel C. Nunes; Jeffrey J. Plaut; Anthony F. Egan; Timothy N. Titus; Roberto Seu
<jats:p>Radar measurements reveal a substantial buried deposit of carbon dioxide in the south pole of Mars.</jats:p>
Palabras clave: Multidisciplinary.
Pp. 838-841
Late Mousterian Persistence near the Arctic Circle
Ludovic Slimak; John Inge Svendsen; Jan Mangerud; Hugues Plisson; Herbjørn Presthus Heggen; Alexis Brugère; Pavel Yurievich Pavlov
<jats:p>Artefacts at a site in the northern Urals dating to about 33,000 years ago suggest a last northern refuge of Neandertals.</jats:p>
Palabras clave: Multidisciplinary.
Pp. 841-845
Experimental Evidence Supports a Sex-Specific Selective Sieve in Mitochondrial Genome Evolution
Paolo Innocenti; Edward H. Morrow; Damian K. Dowling
<jats:p>Polymorphisms in the organelle genome have little effect in female flies but do alter gene expression in males.</jats:p>
Palabras clave: Multidisciplinary.
Pp. 845-848
Role for piRNAs and Noncoding RNA in de Novo DNA Methylation of the Imprinted Mouse Rasgrf1 Locus
Toshiaki Watanabe; Shin-ichi Tomizawa; Kohzoh Mitsuya; Yasushi Totoki; Yasuhiro Yamamoto; Satomi Kuramochi-Miyagawa; Naoko Iida; Yuko Hoki; Patrick J. Murphy; Atsushi Toyoda; Kengo Gotoh; Hitoshi Hiura; Takahiro Arima; Asao Fujiyama; Takashi Sado; Tatsuhiro Shibata; Toru Nakano; Haifan Lin; Kenji Ichiyanagi; Paul D. Soloway; Hiroyuki Sasaki
<jats:p>Small, noncoding PIWI-interacting RNAs regulate the imprinting of a mouse gene.</jats:p>
Palabras clave: Multidisciplinary.
Pp. 848-852
Polarized notum Activation at Wounds Inhibits Wnt Function to Promote Planarian Head Regeneration
Christian P. Petersen; Peter W. Reddien
<jats:p>Local detection of tissue polarity results in selective feedback inhibition of signaling at posterior-facing wounds.</jats:p>
Palabras clave: Multidisciplinary.
Pp. 852-855
Natural Microbe-Mediated Refractoriness to Plasmodium Infection in Anopheles gambiae
Chris M. Cirimotich; Yuemei Dong; April M. Clayton; Simone L. Sandiford; Jayme A. Souza-Neto; Musapa Mulenga; George Dimopoulos
<jats:p>Insect midgut-dwelling bacteria generate reactive oxygen species that inhibit malaria parasite development.</jats:p>
Palabras clave: Multidisciplinary.
Pp. 855-858
Preserved Feedforward But Impaired Top-Down Processes in the Vegetative State
Melanie Boly; Marta Isabel Garrido; Olivia Gosseries; Marie-Aurélie Bruno; Pierre Boveroux; Caroline Schnakers; Marcello Massimini; Vladimir Litvak; Steven Laureys; Karl Friston
<jats:p>Discerning the neural correlates of (un)consciousness sheds light on the mechanisms underlying vegetative states.</jats:p>
Palabras clave: Multidisciplinary.
Pp. 858-862
Improved Learning in a Large-Enrollment Physics Class
Louis Deslauriers; Ellen Schelew; Carl Wieman
<jats:p>Encouraging active engagement results in enhanced learning.</jats:p>
Palabras clave: Multidisciplinary.
Pp. 862-864