Large woody debris (LWD) was added as an experimental stream restoration technique in two streams in southwest Virginia. Additions were designed to compare human judgement in log placements against a randomized design and an unmanipulated reach, &d also to compare effectiveness in a lowand a high-gradient stream. Pool area increased 146% in the systematic placement and 32% in the random placeme...

Prominent in the ‘Field of Streams’ – the Sloan Digital Sky Survey map of substructure in the Galactic halo – is an ‘Orphan Stream’ without obvious progenitor. In this numerical study, we show a possible connection between the newly found dwarf satellite Ursa Major II (UMa II) and the Orphan Stream. We provide numerical simulations of the disruption of UMa II that match the observational data o...

Best management practices (BMPs) are tools commonly used to mitigate negative impacts of agriculture on water quality; however, the relationship between BMPs and aquatic ecological function is unknown. Our research goal was to determine the association between both stream ecosystem metabolism and water quality, and the abundance and location of four different BMPs in agricultural catchments. Di...

INTRODUCTION With higher gradient strength and slew rate, local gradient coils such as planar insert gradients can attain higher spatial and temporal resolution than the body gradients. Many imaging tasks, such as dynamic contrast enhanced (DCE) MRI for breast lesion characterization, can benefit from high spatial and temporal resolution. However, the homogeneous gradient volume (HGV) of the pl...

We analyzed the relation of the amount and spatial pattern of land cover with stream fish communities, in-stream habitat, and baseflow in 47 small southeastern Wisconsin, USA, watersheds encompassing a gradient of predominantly agricultural to predominantly urban land uses. The amount of connected impervious surface in the watershed was the best measure of urbanization for predicting fish densi...

Headwater streams constitute the majority of stream length of river systems, and have important roles in terms of landscape processes and as habitat for organisms. These bodies of water are also tightly coupled with the local terrestrial landscape, making them ideal for studying linkages between land use and stream condition. Despite the ubiquity and importance of these streams, they are often ...

The Odonata are not typically regarded as informative taxa for stream bioassessment in North America compared to other insects, particularly when monitoring the ecological impacts of organic pollution. However, we hypothesized that stream-dwelling odonates useful bioindicators riparian conditions because vegetation associated with streams is used oviposition and establishing breeding territorie...

Introduction MRI has become the noninvasive imaging modality of choice for evaluating the knee, because it is faster and avoids the invasive risks of arthroscopy. MRI provides unparalleled soft-tissue detail and contrast compared to other imaging modalities and offers high diagnostic accuracy. MRI of the knee can benefit from high spatial resolution and short echo times for both proton and sodi...