Re-thinking discourses of "youth" within (adult) regulation of skateboarding.

Situated within the context of increasing "adult regulatory practices" in skateboarding, this article draws attention to and interrogates the ways normative ideas of "youth," "adolescence," and "youth/adolescent development" often interplay with such efforts. In doing so, this article offers a critique, from a Critical Youth Studies perspective, of dominant, developmentalist notions of youth that typically cast young people as deficits in need of specific forms of intervention and surveillance. The article concludes with areas of inquiry emergent from critiques of dominant renderings of youth to be considered when engaging in processes of forming regulatory programs, policies, and practices related to skateboarding.

From "safe" to "brave" spaces: pedagogical practices of to promote within & beyond skateboarding.

Through interviews with key stakeholders within skateboard organizations that explicitly attend to issues of diversity, access, and equity, this article explores pedagogical practices that undergird these organizations' programming for justice. More specifically, this article focuses on the interplay between the implementation of practices of to promote, ultimately, . In theorizing this pedagogical approach, this article discusses how notions of "brave spaces" work in tandem with ideas and practices of cultivating "safe spaces" to work toward social transformation within and beyond skateboarding.

Assessment of effective LAI and water use efficiency using Eddy Covariance data.

Globally, maize (Zea mays, a C4-plant) and alfalfa (Medicago sativa, a C3-plant) are common and economically important crops. Predicting the response of their water use efficiency, WUE, to changing hydrologic and climatic conditions is vital in helping farmers adapt to a changing climate. In this study, we assessed the effective leaf area index (eLAI - the leaf area most involved in CO and HO exchange) and stomatal conductance in canopy scale in maize and alfalfa fields.

High sulfate concentrations maintain low methane emissions at a constructed fen over the first seven years of ecosystem development.

Wetlands comprise a large expanse of the pre-disturbance landscape in the Athabasca Oil Sands Region (AOSR) and have become a focus of reclamation in recent years. An important aspect of wetland reclamation is understanding the biogeochemical functioning and carbon exchange, including methane (CH) emissions, in the developing ecosystem. This study investigates the drivers of CH emissions over the first seven years of ecosystem development at a constructed fen in the AOSR and looks towards future CH emissions from this site.