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Research highlights from the current issue of Science Magazine
27 Feb
Colorado potato beetles can skeletonize the leaves on a potato plant, devastating crop yields. Insecticides are increasingly useless as the beetle evolves resistance. Zhang et al. – [Read More]
27 Feb
Males of some of the malaria-transmitting mosquitoes “plug” females after copulation to stop interloping males from mating. The mating plug also delivers a steroid hormone into the – [Read More]
27 Feb
Details of the transition state that forms as carbon monoxide (CO) adsorbed on a ruthenium surface is oxidized to CO2 have been revealed by ultrafast excitation and probe – [Read More]
27 Feb
Möbius strips are three-dimensional structures consisting of a surface with just a single side. Readily demonstrated by snipping a paper ring, adding a twist, and then joining the – [Read More]
27 Feb
Which recent climate changes have been forced by greenhouse gas emissions, and which have been natural fluctuations of the climate system? Steinman et al. combined observational – [Read More]
27 Feb
The transition into the New Stone Age, or Neolithic period, in Great Britain and Europe was characterized by a change from hunter-gatherers to farmers. However, the early stages of – [Read More]
27 Feb
In patients with cystic fibrosis (CF) or other lung diseases, airway mucus can be highly elastic and very difficult to clear, leading to airflow obstruction and lung infection. Now, – [Read More]
27 Feb
Metal-free catalysts have recently been designed for use in alkaline fuel cells. Dai et al. have successfully used a metal-free catalyst in an acidic polymer electrolyte membrane – [Read More]
27 Feb
The current outbreak of Ebola virus in West Africa highlights the need for antiviral therapies. One strategy would be to block the Ebola virus's ability to enter host cells. Cells engulf – [Read More]
27 Feb
Without sustainable solutions, the world's most pressing environmental concerns will continue to persist or worsen. Achieving the goal of sustainability involves so many factors—from e – [Read More]
27 Feb
The acceleration of charged particles to high energies has been a major mystery, with a number of competing theories based on plasma physics. Many include the concept of turbulence, – [Read More]
27 Feb
In order to understand cellular differentiation, it is important to understand the timing of the regulation of gene expression. Arner et al. used cap analysis of gene expression – [Read More]
27 Feb
Liquid-crystal molecules orient locally in response to external fields. When long-chain liquid-crystalline molecules are crosslinked together, changes in local orientation can lead – [Read More]
27 Feb
When stem cells progress from an embryonic pluripotent state toward a particular lineage, molecular switches dismantle the transcription factor network that keeps the cell pluripotent. – [Read More]
27 Feb
Special DNA sequences at the ends of chromosomes, called telomeres, are replenished by a dedicated enzyme called telomerase. A subset of human tumors harbors mutations in the promoter – [Read More]
27 Feb
Hox genes confer positional identity to cells and tissues. Maintaining precise spatial patterns of Hox gene expression is vital during metazoan development. The transcriptional – [Read More]
27 Feb
The ability to adapt to changes in the function of gene regulators, as opposed to structural genes, is a crucial aspect of evolutionary change. Taylor et al. mutated a central – [Read More]
27 Feb
The kinase p38 is activated in various inflammatory skin disorders, but drugs that block p38 activity can cause toxicity. Mice deficient in the E3 ubiquitin ligase Itch have itchy skin. – [Read More]
27 Feb
The efficient operation of solar cells based on inorganic-organic perovskites requires balanced transport of positive and negative charge carriers over long distances. Dong et al. – [Read More]
27 Feb
Splitting water into its constituent elements, hydrogen and oxygen, generally requires the assistance of metal catalysts. Liu et al. now show that a metal-free hybrid material – [Read More]
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