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Wide-field fluorescence images (upper) acquired simultaneously in two orthogonal polarizations (double-ended arrows) depicting the 1D diffusional motions of rod-shaped single molecules confined within surfactant-templated mesoporous silica (bottom scheme).October 2014Science Highlight

Wobbling Molecules Probe Wiggle Room in Nanochannels

Single-molecule wobbling measurements help to elucidate molecular confinement within cylindrical nanopores. Read More »

Changes in primary DNA sequence (a) and three-dimensional structure (b) upon directed evolution of the noncatalytic protein hRXRα to the ligase enzyme 10C.July 2014Science Highlight

Watching the Evolution of a Protein’s Function

Study reveals structural changes leading to catalytic activity. Read More »

By comparing computational simulations of rainfall with long-term measurements, researchers hope to improve how precipitation is represented in climate models.July 2014Science Highlight

Improving Rainfall Processes in Climate Models

Long-term ARM data used to evaluate precipitation simulations. Read More »

As part of research to improve biofuel production processes, scientists are studying how a soil microbe found in Puerto Rico’s El Yunque National Forest (shown here) breaks down lignin in plant cell walls.July 2014Science Highlight

Tropical Soil Bacterium Frees Plant Sugars for Biofuels

Microbe found to use two biochemical pathways for degrading lignin. Read More »

Global distribution of black carbon in 2000 among eight different models, whose results diverged the most in polar regions.July 2014Science Highlight

Understanding Soot’s Effect on Snow Reflectivity

Model comparison evaluates black carbon levels and impacts. Read More »

ARM Mobile Facility instruments measure aerosol and cloud properties during a 2008 study in Shouxian, China.July 2014Science Highlight

Higher Clouds Retain Less Energy

ARM data shed light on how altitude affects cloud energy content. Read More »

The Atmospheric Radiation Measurement (ARM) Climate Research Facility has three user facility sites in the tropical western Pacific: Manus, Papua New Guinea; Nauru Island, Republic of Nauru; and Darwin, Australia.July 2014Science Highlight

A Decade of Atmospheric Research in the Tropical Western Pacific

Long-term ARM datasets critical for cloud and solar energy studies. Read More »

Predicting the economic costs of damage from natural forces is difficult.July 2014Science Highlight

Climate Change Impact Valuation Models Revisited

Valuing diverse climate impacts in integrated assessment models. Read More »

Atmospheric dust from deserts or human activities influences the processes within cirrus clouds, thereby affecting global climate.July 2014Science Highlight

Dust in High Clouds Cools Climate

Study examines impact of ice particle competition. Read More »

A new method for measuring planetary boundary layer depth has been applied to data collected over 8 years at the ARM program’s Southern Great Plains site, whose central facility is shown here.July 2014Science Highlight

New method to determine planetary boundary layer depth

Combining the strengths of existing techniques, new algorithm could help improve climate models. Read More »