Stormwater ponds: Unaccounted environmental challenges of a widely-adopted best management practice in urban landscapes.

Stormwater ponds (SWPs) are an increasingly common management tool for flood control and water quality protection in urban areas. They are designed to buffer the impacts to downstream environments caused by altered hydrologic, chemical, biological, and ecological processes in developed watersheds. While small in size, they can have disproportionately large impacts on watersheds because they store, transform, and release inputs of carbon (C) and nutrients, mainly nitrogen (N) and phosphorus (P).

Reframing the "Migration Crisis" as a Humanitarian and Public Health Emergency.

The current narrative of a "migration crisis" has so severely misdirected the understanding of the fundamental human safety, security, and health challenges that confront migrants, that we feel compelled to reframe the issue as a public health and humanitarian emergency. By looking at migrants as an economic threat or as an "invasion" that threatens the American way of life," it becomes difficult to view their humanity as vulnerable individuals who confront a host of challenges at the border, including abuse, dehumanization, and incarceration. The forced migration of thousands of individuals and families who flee their countries of origin to escape violence and insecurity to then be demonized and retraumatized at the border is a public health emergency.

Molecular characterization of dissolved organic matter in urban stormwater pond and municipal wastewater discharges transformed by the Florida red tide dinoflagellate Karenia brevis.

Karenia brevis blooms occur almost annually in southwest Florida, imposing significant ecological and human health impacts. Currently, 13 nutrient sources have been identified supporting blooms, including nearshore anthropogenic inputs such as stormwater and wastewater outflows. A 21-day bioassay was performed, where K.

Nitrogen forms and dissolved organic matter optical properties in bulk rainfall, canopy throughfall, and stormwater in a subtropical urban catchment.

The study of nitrogen (N) transformation in urban ecosystems is crucial in the protection of coastal water bodies because excess N may fuel harmful algae blooms (HABs). The purpose of this investigation was to study and identify the forms and concentrations of N in rainfall, throughfall, and stormwater runoff for 4 storm events in a subtropical urban ecosystem and to use fluorescence spectroscopy to evaluate the optical properties and expected lability of dissolved organic matter (DOM) in the same samples. The rainfall contained both inorganic and organic N pools, and organic N as nearly 50 % of total dissolved N in the rainfall.

Experimental measurement of the geometric phase of non-geodesic circles.

We present and implement a method for the experimental measurement of geometric phase of non-geodesic (small) circles on any SU(2) parameter space. This phase is measured by subtracting the dynamic phase contribution from the total phase accumulated. Our design does not require theoretical anticipation of this dynamic phase value and the methods are generally applicable to any system accessible to interferometric and projection measurements.