Fifty years of hyporheic zone research have shown the important role played by the
hyporheic zone as an interface between groundwater and surface waters. However, it is only …

Water plays a critical role in erosion and sediment transport and this relationship is most
evident in the hyperarid Atacama Desert of Northern Chile, a region characterized by …

Transcription factors (TFs) consist of a DNA-binding domain and an activation domain (AD)
that are frequently considered to be independent and exchangeable modules. However …

One of the most of challenging steps in the development of coupled hydrodynamic-
biogeochemical models is the combination of multiple, often incompatible computer codes …

Biologically available nitrogen is removed from ecosystems through the microbial processes
of anaerobic ammonium oxidation (anammox) or denitrification, while dissimilatory nitrate …

Severe and persistent bacterial lung infections characterize cystic fibrosis (CF). While
several studies have documented the microbial diversity within CF lung mucus, we know …

Colonially breeding birds and mammals form some of the largest gatherings of apex
predators in the natural world and have provided model systems for studying mechanisms of …

Redox-sensitive trace metals and their isotopes have emerged as important tools that are
used to reconstruct the redox-evolution of the ocean-atmosphere system. However …

Methane is a powerful greenhouse gas and its emission from marine sediments to the
atmosphere is largely controlled by anaerobic oxidation of methane (AOM). Traditionally …

The emergence of oxygenic photosynthesis created a new niche with dramatic potential to
transform energy flow through Earth's biosphere. However, more primitive forms of …