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Measuring Single-Cell Aging with an Imaging-based Biomarker of Chromatin and Epigenetic Aging09:10

Measuring Single-Cell Aging with an Imaging-based Biomarker of Chromatin and Epigenetic Aging

The protocol presents the imaging and computational workflow to extract and validate imaging-based chromatin and epigenetic age...
208
Electrostatic Method to Remove Particulate Organic Matter from Soil04:40

Electrostatic Method to Remove Particulate Organic Matter from Soil

Removing recently deposited and incompletely decomposed plant material from soil samples reduces the influence of temporary seasonal inputs on soil organic carbon measurements. Attraction to an electrostatically charged surface can be used to quickly remove a substantial amount of particulate organic...
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Improving Infrared Spectroscopy Characterization of Soil Organic Matter with Spectral Subtractions08:57

Improving Infrared Spectroscopy Characterization of Soil Organic Matter with Spectral Subtractions

SOM underlies many soil functions and processes, but its characterization by FTIR spectroscopy is often challenged by mineral interferences. The described method can increase the utility of SOM analysis by FTIR spectroscopy by subtracting mineral interferences in soil spectra using empirically obtained mineral reference...
13.2K
Production and Measurement of Organic Particulate Matter in a Flow Tube Reactor13:29

Production and Measurement of Organic Particulate Matter in a Flow Tube Reactor

This paper describes the operation procedure for the flow tube reactor and related data collection. It shows the protocols for setting the experiments, recording data and generating the number-diameter distribution as well as the particle mass information, which gives useful information about chemical and physical properties of the organic...
8.0K
Production and Measurement of Organic Particulate Matter in the Harvard Environmental Chamber09:46

Production and Measurement of Organic Particulate Matter in the Harvard Environmental Chamber

This paper describes operation procedures for the Harvard Environmental Chamber (HEC) and related instrumentation for measuring gaseous and particle species. The environmental chamber is used to produce and study secondary organic species produced from the organic precursors, especially related to atmospheric organic particulate matter.
7.7K
Understanding Dissolved Organic Matter Biogeochemistry Through In Situ Nutrient Manipulations in Stream Ecosystems09:38

Understanding Dissolved Organic Matter Biogeochemistry Through In Situ Nutrient Manipulations in Stream Ecosystems

Dissolved organic matter provides an important source of energy and nutrients to stream ecosystems. Here we demonstrate a field-based method to manipulate the ambient pool of dissolved organic matter in situ through easily replicable nutrient...
11.0K