Contents
Vol 309, Issue 5743
Special Issue
Voyager 1
Special Feature
2005 Visualization Challenge
Introduction to special issue
Viewpoint
Reports
Special Feature
Special Feature
2005 Visualization Challenge
Contents
This Week in Science
Editorial
Editors' Choice
NetWatch
Products & Materials
News of the Week
ScienceScope
Random Samples
News Focus
Letters
Books
Policy Forum
Perspectives
Review
Brevia
- Bacterial Immunity Traded for Sperm Viability in Male Crickets
Empirical genetic evidence found in male cri ckets supports the notion that robust immune responses occur at the cost of reproductive success.
Research Article
- An Aneuploid Mouse Strain Carrying Human Chromosome 21 with Down Syndrome Phenotypes
Mice carrying most of human chromosome 21 in each cell have developmental and learning difficulties similar to those found in Down's Syndrome, providing a way to study this disorder.
Reports
- Fluorescent Guest Molecules Report Ordered Inner Phase of Host Capsules in Solution
A nanometer-scale capsule can host two polyaromatic guest molecules but keep them rigidly apart .
- A Chromium Terephthalate-Based Solid with Unusually Large Pore Volumes and Surface Area
A metal cluster-organic framework with extra-large , 3-nanometer pores has a very high nitrogen sorption capacity and can incorporate large polyanions in the pores.
- Jumping Nanodroplets
The contraction of rapidly melting gold nanoparticles on a surface imparts sufficient force to desorb the droplets from the surface and accelerate them upward.
- The Global Reach of the 26 December 2004 Sumatra Tsunami
A global model of the 2004 Sumatra tsunami shows that the waves were guided by Earth's mid-ocean ridges, explaining the large waves that hit Peru and northeastern Canada 1 day later.
- Dating of Multistage Fluid Flow in Sandstones
Dating subsections of the minerals containing trapped fluids constrains the timing of the arrival and generation of oil in a major petroleum basin north of Scotland.
- Late Cenozoic Moisture History of East Africa
Lake sediments in the East African Rift indicate that three wet periods interrupted a gradual drying trend during the past several million years, s uggesting a complex relation of climate to human evolution.
- Structure of PTB Bound to RNA: Specific Binding and Implications for Splicing Regulation
The structure of an RNA binding protein indicates that its multiple binding domains cause looping in the RNA, suggesting a mechanism for regulation of RNA splicing.
- Direct Observation of the Three-State Folding of a Single Protein Molecule
Manipulation of individual ribonuclease molecules with optical tweezers reveals that they fold via an intermediate held together by cohesive interactions, which is nevertheless highly deformable.
- Xanthorhodopsin: A Proton Pump with a Light-Harvesting Carotenoid Antenna
Adding a carotenoid to a retinal-based proton pump expands the spectrum of light energy that can be absorbed and converted into an electrochemical proton gradient.
- Direct Isolation of Satellite Cells for Skeletal Muscle Regeneration
Satellite muscle cells isolated from the diaphragm of a healthy mouse can restore function when grafted into muscles of a dystrophic mouse.
- Regulation of Mammalian Tooth Cusp Patterning by Ectodin
An inhibitory molecule is found to shape the topology of the mammalian tooth surface, perhaps controlling the evolution of teeth.
- Genetic Engineering of Terpenoid Metabolism Attracts Bodyguards to Arabidopsis
A plant can be engineered to protect itself by making and releasing terpenoid compounds when attacked by insect herbivores, which in turn attract predators to consume the pest.
- Structural Phylogenetics and the Reconstruction of Ancient Language History
The relatively stable grammatical structure of language proves more useful than vocabulary, which changes rapidly, in reconstructing the evolution of language in Pacific islands.
- Phenotypic Diversity, Population Growth, and Information in Fluctuating Environments
If their environments change rarely, the best strategy for bacteria is to switch phenotypes infrequently; if change is common, it is better to adapt accordingly.
Technical Comments
