James M. De Buizer

Learn More
When viewed in optical starlight scattered by dust, the nearly edge-on debris disk surrounding the A5V star b Pictoris (distance 19.3 pc; ref. 1) extends farther than 1,450 AU from the star 2. Its large-scale complexity has been well characterized, but the detailed structure of the disk's central ,200-AU region has remained elusive. This region is of(More)
This paper discusses the evolution of scientific and social understanding that has led to the development of knowledge systems supporting the application of El Niño-Southern Oscillation (ENSO) forecasts, including the development of successful efforts to connect climate predictions with sectoral applications and actions "on the ground". The evolution of(More)
Managing water for sustainable use and economic development is both a technical and a governance challenge in which knowledge production and sharing play a central role. This article evaluates and compares the role of participatory governance and scientific information in decision-making in four basins in Brazil, Mexico, Thailand, and the United States.(More)
Context. Methanol masers are often found in linear distributions, and it has been hypothesized that these masers are tracing circumstellar accretion disks around young massive stars. However, recent observations in H2 emission have shown what appear to be outflows at similar angles to the maser distribution angles, not perpendicular as expected in the(More)
The Arizona Water Institute, along with Arizona State University and the University of Arizona's Institute for the Study of Planet Earth, brought together local, State, tribal, and Federal water resources managers with agency and university scientists to identify adaptation and response strategies to climate change impacts on water supplies. The workshop(More)
We present subarcsecond resolution mid infrared images of NGC 4151 at 10.8µm and 18.2µm. These images were taken with the University of Florida mid-IR camera/spectrometer OSCIR at the Gemini North 8 m telescope. We resolve emission at both 10.8µm and 18.2µm extending ∼ 3.5 ′′ across at a P.A. of ∼ 60 •. This coincides with the the narrow line region of NGC(More)
variability and longer-term changes affect many aspects of society. For example, drought can lead to large losses in climate event but sustain different impacts. Therefore, a principal determinant of a region's climate vulnerability is its ability to climate impacts. » Determine climate vulnerabilities that reveal opportunities in which climate information(More)
We present high angular resolution (∼0. ′′ 5) 10 and 18 µm images of the region around G29.96-0.02 taken from the Gemini North 8-m telescope using the mid-infrared imager and spectrometer OSCIR. These observations were centered on the location of a group of water masers, which delineate the site of a hot molecular core believed to contain an extremely(More)
We present spatially resolved mid-infrared spectroscopy of the class I/flat-spectrum protostellar binary system SVS20 in the Serpens cloud core. The spectra were obtained with the mid-infrared instrument T-ReCS on Gemini-South. SVS20-South, the more luminous of the two sources, exhibits a mid-infrared emission spectrum peaking near 11.3 µm, while(More)
The results of a survey searching for outflows using near-infrared imaging is presented. Targets were chosen from a compiled list of massive young stellar objects (YSOs) associated with methanol masers in linear distributions. Presently, it is a widely held belief that these methanol masers are found in (and delineate) circumstellar accretion disks around(More)