7 Result(s)
within
James A. Bradley
English
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Article
Open AccessLong-term organic carbon preservation enhanced by iron and manganese
The balance between degradation and preservation of sedimentary organic carbon (OC) is important for global carbon and oxygen cycles1. The relative importance of different mechanisms and environmental conditions ...
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Article
Open AccessTransfer efficiency of organic carbon in marine sediments
Quantifying the organic carbon (OC) sink in marine sediments is crucial for assessing how the marine carbon cycle regulates Earth’s climate. However, burial efficiency (BE) – the commonly-used metric reporting...
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Article
Open AccessPigment signatures of algal communities and their implications for glacier surface darkening
Blooms of pigmented algae darken the surface of glaciers and ice sheets, thereby enhancing solar energy absorption and amplifying ice and snow melt. The impacts of algal pigment and community composition on su...
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Article
Trace gas oxidizers are widespread and active members of soil microbial communities
Soil microorganisms globally are thought to be sustained primarily by organic carbon sources. Certain bacteria also consume inorganic energy sources such as trace gases, but they are presumed to be rare commun...
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Article
Glacial ecosystems are essential to understanding biodiversity responses to glacier retreat
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Article
Cardiac mesenchymal cells from diabetic mice are ineffective for cell therapy-mediated myocardial repair
Although cell therapy improves cardiac function after myocardial infarction, highly variable results and limited understanding of the underlying mechanisms preclude its clinical translation. Because many heart...
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Article
Open AccessCarbonate-rich dendrolitic cones: insights into a modern analog for incipient microbialite formation, Little Hot Creek, Long Valley Caldera, California
Ancient putative microbial structures that appear in the rock record commonly serve as evidence of early life on Earth, but the details of their formation remain unclear. The study of modern microbial mat stru...
