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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

AAAS News and Notes

<jats:p> A monthly roundup of recent news and projects of <jats:italic>Science</jats:italic> 's publisher, the American Association for the Advancement of Science. </jats:p>

Palabras clave: Multidisciplinary.

Pp. 1518-1518

Human Fatty Liver Disease: Old Questions and New Insights

Jonathan C. Cohen; Jay D. Horton; Helen H. Hobbs

<jats:p>Nonalcoholic fatty liver disease (NAFLD) is a burgeoning health problem that affects one-third of adults and an increasing number of children in developed countries. The disease begins with the aberrant accumulation of triglyceride in the liver, which in some individuals elicits an inflammatory response that can progress to cirrhosis and liver cancer. Although NAFLD is strongly associated with obesity and insulin resistance, its pathogenesis remains poorly understood, and therapeutic options are limited. Here, we discuss recent mechanistic insights into NAFLD, focusing primarily on those that have emerged from human genetic and metabolic studies.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 1519-1523

16-Month-Olds Rationally Infer Causes of Failed Actions

Hyowon Gweon; Laura Schulz

<jats:p>Infants use statistical inference to decide what went wrong.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 1524-1524

Scale for the Phase Diagram of Quantum Chromodynamics

Sourendu Gupta; Xiaofeng Luo; Bedangadas Mohanty; Hans Georg Ritter; Nu Xu

<jats:p>The temperature scale for the breakdown of protons and neutrons can be determined from high-energy ion collisions and calculations.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 1525-1528

The Oxygen Isotopic Composition of the Sun Inferred from Captured Solar Wind

K. D. McKeegan; A. P. A. Kallio; V. S. Heber; G. Jarzebinski; P. H. Mao; C. D. Coath; T. Kunihiro; R. C. Wiens; J. E. Nordholt; R. W. Moses; D. B. Reisenfeld; A. J. G. Jurewicz; D. S. Burnett

<jats:p>The Sun is highly enriched in the most abundant isotope of oxygen, oxygen-16, relative to most other planetary materials.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 1528-1532

A 15 N-Poor Isotopic Composition for the Solar System As Shown by Genesis Solar Wind Samples

B. Marty; M. Chaussidon; R. C. Wiens; A. J. G. Jurewicz; D. S. Burnett

<jats:p>The solar atmosphere is about 40% enriched in the heavy nitrogen-15 isotope compared with the Sun and Jupiter.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 1533-1536

Carbon-Based Supercapacitors Produced by Activation of Graphene

Yanwu Zhu; Shanthi Murali; Meryl D. Stoller; K. J. Ganesh; Weiwei Cai; Paulo J. Ferreira; Adam Pirkle; Robert M. Wallace; Katie A. Cychosz; Matthias Thommes; Dong Su; Eric A. Stach; Rodney S. Ruoff

<jats:p>Activated microwave-exfoliated graphite oxide combined with an ionic liquid can be used to make an enhanced capacitor.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 1537-1541

Disorder-Enhanced Transport in Photonic Quasicrystals

Liad Levi; Mikael Rechtsman; Barak Freedman; Tal Schwartz; Ofer Manela; Mordechai Segev

<jats:p>Optical interference in a photorefractive crystal is used to study light propagation in a controlled disordered system.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 1541-1544

Net Oxidative Addition of C(sp 3 )-F Bonds to Iridium via Initial C-H Bond Activation

Jongwook Choi; David Y. Wang; Sabuj Kundu; Yuriy Choliy; Thomas J. Emge; Karsten Krogh-Jespersen; Alan S. Goldman

<jats:p>An unusual mechanism to cleave carbon-fluorine bonds may facilitate more efficient transformations of fluorocarbons.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 1545-1548

Abiotic Pyrite Formation Produces a Large Fe Isotope Fractionation

Romain Guilbaud; Ian B. Butler; Rob M. Ellam

<jats:p>Iron isotope signatures may not differentiate abiotic and biological processes in sediments.</jats:p>

Palabras clave: Multidisciplinary.

Pp. 1548-1551