A review of spacecraft material sputtering by Hall thruster plumes

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/76408/1/AIAA-2001-3353-473.pd

The Effects of Trial Judge Gender and Public Opinion on Criminal Sentencing Decisions

We explore the effects of a trial judge\u27s gender in criminal sentencing decisions by addressing two unsettled questions. First, do female and male trial judges sentence criminal offenders differently from one another? While numerous qualitative and quantitative scholars have examined this question, the results lack consistency. Second, are female trial judges\u27 sentencing practices differentially affected by public opinion compared to male judges\u27 behavior? Little research exists on this second question, but existing theory on how females and males make decisions and operate as judges is informative. To provide new empirical insight into these questions, we rely on two sources of data: judge sentences stemming from Colorado trial court marijuana-related drug cases filed from 2004 to 2009 and local public opinion on marijuana from a 2006 Colorado general election initiative on whether to legalize marijuana possession. These data permit us to analyze judges\u27 baseline sentencing practices (pre-2006 initiative) and the effect that public opinion has on the sentences (pre- vs. post-2006 initiative). The statistical modeling indicates that while male and female judges in Colorado generally do not sentence defendants differently from one another, there is one exception. Namely, female judges are more lenient than male judges when sentencing female defendants. Our empirical results also indicate that while Colorado trial judges were responsive to local public opinion following the 2006 marijuana initiative, that responsiveness was not more potent for female judges than it was for male judges. Together, these empirical results provide important new insights into the behavior of male and female trial court judges

Calculation of Boron Nitride Sputter Yields Under Low Energy Xenon Ion Bombardment

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/77064/1/AIAA-2007-5313-409.pd

Distance measures to compare real and ideal quantum processes

With growing success in experimental implementations it is critical to identify a "gold standard" for quantum information processing, a single measure of distance that can be used to compare and contrast different experiments. We enumerate a set of criteria such a distance measure must satisfy to be both experimentally and theoretically meaningful. We then assess a wide range of possible measures against these criteria, before making a recommendation as to the best measures to use in characterizing quantum information processing.Comment: 15 pages; this version in line with published versio

Linking Classroom Learning and Research to Advance Ideas about Social-Ecological Resilience

There is an increasing demand in higher education institutions for training in complex environmental problems. Such training requires a careful mix of conventional methods and innovative solutions, a task not always easy to accomplish. In this paper we review literature on this theme, highlight relevant advances in the pedagogical literature, and report on some examples resulting from our recent efforts to teach complex environmental issues. The examples range from full credit courses in sustainable development and research methods to project-based and in-class activity units. A consensus from the literature is that lectures are not sufficient to fully engage students in these issues. A conclusion from the review of examples is that problem-based and project-based, e.g., through case studies, experiential learning opportunities, or real-world applications, learning offers much promise. This could greatly be facilitated by online hubs through which teachers, students, and other members of the practitioner and academic community share experiences in teaching and research, the way that we have done here

Extension Programs Increased Missouri Cotton Farmer Use of Survey-Based Pest Management

In 1982, only 5% of Missouri cotton farmers surveyed fields for pests and used this information when selecting pest management strategies, i.e., survey based pest management (SBPM). University of Missouri faculty initiated a program that year to instruct farmers about the benefits of SBPM. They provided instruction from 1982 to 1999. During 1999, 3% of Missouri cotton farmers were surveyed by phone for their use of SBPM. That year, farmers used SBPM to protect 82% of Missouri cotton acres. In addition to better yields, the use of SBPM ensured more efficient use of all pest management strategies

Design of Quiet Rotorcraft Approach Trajectories

A optimization procedure for identifying quiet rotorcraft approach trajectories is proposed and demonstrated. The procedure employs a multi-objective genetic algorithm in order to reduce noise and create approach paths that will be acceptable to pilots and passengers. The concept is demonstrated by application to two different helicopters. The optimized paths are compared with one another and to a standard 6-deg approach path. The two demonstration cases validate the optimization procedure but highlight the need for improved noise prediction techniques and for additional rotorcraft acoustic data sets