Catálogo de publicaciones - revistas

<jats:p>Positronium, the atom formed from an electron and a positron, is a gateway to very cold antihydrogen atoms and possibly a γ-ray laser.</jats:p>

<jats:p> An ocean drill core confirms a dramatic rise in CO <jats:sub>2</jats:sub> levels 40 million years ago, just as the Himalayas grew. </jats:p>

<jats:p>Part of the brain's visual hierarchy appears to be specialized for recognizing faces from any viewpoint.</jats:p>

<jats:p>Inhibiting an enzyme expressed by microbes in the human intestinal tract prevents an important toxic side effect of an anticancer drug.</jats:p>

<jats:p> In <jats:italic>Petunia</jats:italic> , collaboration among pollen genes enables cross-fertilization and prevents self-fertilization. </jats:p>

<jats:p>The role of the brain's white matter in active learning and memory may be underestimated.</jats:p>

<jats:p>Epigenetic marks on maternal and paternal genes differentially affect brain development in their children.</jats:p>

<jats:p>Astrocytes are the most abundant cell type in the mammalian brain. Interest in astrocyte function has increased dramatically in recent years because of their newly discovered roles in synapse formation, maturation, efficacy, and plasticity. However, our understanding of astrocyte development has lagged behind that of other brain cell types. We do not know the molecular mechanism by which astrocytes are specified, how they grow to assume their complex morphologies, and how they interact with and sculpt developing neuronal circuits. Recent work has provided a basic understanding of how intrinsic and extrinsic mechanisms govern the production of astrocytes from precursor cells and the generation of astrocyte diversity. Moreover, new studies of astrocyte morphology have revealed that mature astrocytes are extraordinarily complex, interact with many thousands of synapses, and tile with other astrocytes to occupy unique spatial domains in the brain. A major challenge for the field is to understand how astrocytes talk to each other, and to neurons, during development to establish appropriate astrocytic and neuronal network architectures.</jats:p>