Team LunaCY Outreach Paper

Iowa State University's Lunabotics Club, Team LunaCY, has worked hard to generate enthusiasm for robotics, engineering, and lunar activities. Team LunaCY participated in a variety of different outreach events making a strong impression on Iowa youth. These events led the chair of the mechanical engineering department, Dr. Ted Heindel, to refer to the club's outreach program as "the model that all other engineering clubs should follow." Team LunaCY's outreach activities totaled over 200 hours and captivated over 3000 students and adults throughout the course of this acaden1ic year, reaching out to people all over Iowa and to several special guests. These guests included Vice-President Joe Biden, during a visit to Iowa State University in March 2012, and astronaut Clayton Anderson, during a visit to Iowa State's campus in the fall 2011. Team LunaCY's outreach events created hands on learning opportunities for local youth ranging in age from elementary school children to high school students. The team strove to make a positive impression on Iowa youth and to encourage interest and involvement in scientific fields. The full list of events is shown in Table 1. Three of the major outreach events the team participated in were the FIRST LEGO League, Science Bound, and iExplore STEM Festival

Analog to digital convertor studies

Call number: LD2668 .T4 EECE 1988 H45Master of ScienceElectrical and Computer Engineerin

Can the UNAIDS modes of transmission model be improved? A comparison of the original and revised model projections using data from a setting in west Africa.

OBJECTIVE: The UNAIDS modes of transmission model (MoT) is a user-friendly model, developed to predict the distribution of new HIV infections among different subgroups. The model has been used in 29 countries to guide interventions. However, there is the risk that the simplifications inherent in the MoT produce misleading findings. Using input data from Nigeria, we compare projections from the MoT with those from a revised model that incorporates additional heterogeneity. METHODS: We revised the MoT to explicitly incorporate brothel and street-based sex-work, transactional sex, and HIV-discordant couples. Both models were parameterized using behavioural and epidemiological data from Cross River State, Nigeria. Model projections were compared, and the robustness of the revised model projections to different model assumptions, was investigated. RESULTS: The original MoT predicts 21% of new infections occur in most-at-risk-populations (MARPs), compared with 45% (40-75%, 95% Crl) once additional heterogeneity and updated parameterization is incorporated. Discordant couples, a subgroup previously not explicitly modelled, are predicted to contribute a third of new HIV infections. In addition, the new findings suggest that women engaging in transactional sex may be an important but previously less recognized risk group, with 16% of infections occurring in this subgroup. CONCLUSION: The MoT is an accessible model that can inform intervention priorities. However, the current model may be potentially misleading, with our comparisons in Nigeria suggesting that the model lacks resolution, making it challenging for the user to correctly interpret the nature of the epidemic. Our findings highlight the need for a formal review of the MoT

The Political Economy of School Choice

This paper examines the political economy of school choice and focuses in particular on the role of suburbanites. This group, which we contend is the most important and powerful stakeholder in choice debates, has yet to receive much attention in the commentary. It turns out that suburbanites, by and large, are not wild about school choice, either public or private. Suburbanites are largely satisfied with the schools in their neighborhoods and want to protect the physical and financial independence of those schools (as well as their property values, which are tied to the perceived quality of local schools). School choice threatens the independence of suburban schools by creating both the possibility that outsiders - particularly urban students - will be able to attend suburban schools and the possibility that some locally-raised revenues will exit local schools as students leave to attend either private schools or public schools outside of their residential districts. When suburbanites perceive a threat to their schools, they fight back, and they usually win. As the paper documents, school desegregation and school finance litigation, despite some successes, largely left suburban districts undisturbed in their ability to control attendance and the expenditure of local resources. A similar pattern is emerging in school choice plans, almost of all which work to protect the physical and financial autonomy of suburban schools and residents. If this pattern continues, school choice plans will be geographically constrained, will tend to be intradistrict, and will exist primarily in urban districts. So constrained, we argue, school choice will neither be a panacea for public school students (as its proponents claim) nor will it be much of a threat to the continued existence of traditional public schools (as its opponents claim). Instead, as we endeavor to show, such plans hold the promise of limited academic improvement, little to no gain in racial and socioeconomic integration, and limited gains in efficiency among public schools. To achieve the theoretical benefits of school choice, such plans must be expanded, especially in ways that will increase socioeconomic integration. The final part of the paper is devoted to considering ways to do so, which include supporting the drive for increased access to government-funded (though not necessarily government-operated) preschools, the theory being that the more parents experience (a form of) school choice, the more their perceptions and preferences regarding choice might change

The Political Economy of School Choice

This paper examines the political economy of school choice and focuses in particular on the role of suburbanites. This group, which we contend is the most important and powerful stakeholder in choice debates, has yet to receive much attention in the commentary. It turns out that suburbanites, by and large, are not wild about school choice, either public or private. Suburbanites are largely satisfied with the schools in their neighborhoods and want to protect the physical and financial independence of those schools (as well as their property values, which are tied to the perceived quality of local schools). School choice threatens the independence of suburban schools by creating both the possibility that outsiders - particularly urban students - will be able to attend suburban schools and the possibility that some locally-raised revenues will exit local schools as students leave to attend either private schools or public schools outside of their residential districts. When suburbanites perceive a threat to their schools, they fight back, and they usually win. As the paper documents, school desegregation and school finance litigation, despite some successes, largely left suburban districts undisturbed in their ability to control attendance and the expenditure of local resources. A similar pattern is emerging in school choice plans, almost of all which work to protect the physical and financial autonomy of suburban schools and residents. If this pattern continues, school choice plans will be geographically constrained, will tend to be intradistrict, and will exist primarily in urban districts. So constrained, we argue, school choice will neither be a panacea for public school students (as its proponents claim) nor will it be much of a threat to the continued existence of traditional public schools (as its opponents claim). Instead, as we endeavor to show, such plans hold the promise of limited academic improvement, little to no gain in racial and socioeconomic integration, and limited gains in efficiency among public schools. To achieve the theoretical benefits of school choice, such plans must be expanded, especially in ways that will increase socioeconomic integration. The final part of the paper is devoted to considering ways to do so, which include supporting the drive for increased access to government-funded (though not necessarily government-operated) preschools, the theory being that the more parents experience (a form of) school choice, the more their perceptions and preferences regarding choice might change

Supporting adolescent girls to stay in school, reduce child marriage and reduce entry into sex work as HIV risk prevention in north Karnataka, India: protocol for a cluster randomised controlled trial.

BACKGROUND: Low caste adolescent girls living in rural northern Karnataka are at increased risk of school drop-out, child marriage, and entry into sex-work, which enhances their vulnerability to HIV, early pregnancy and adverse maternal and child health outcomes. This protocol describes the evaluation of Samata, a comprehensive, multi-level intervention designed to address these structural drivers of HIV risk and vulnerability. METHODS/DESIGN: The Samata study is a cluster randomised controlled trial that will be conducted in eighty village clusters (40 intervention; 40 control) in Bijapur and Bagalkot districts in northern Karnataka. The intervention seeks to reach low caste girls and their families; adolescent boys; village communities; high school teachers and school governing committees; and local government officials. All low caste (scheduled caste/tribe) adolescent girls attending 7th standard (final year of primary school) will be recruited into the study in two consecutive waves, one year apart. Girls (n = 2100), their families (n = 2100) and school teachers (n = 650) will be interviewed at baseline and at endline. The study is designed to assess the impact of the intervention on four primary outcomes: the proportion of low caste girls who (i) enter into secondary school; (ii) complete secondary school; (iii) marry before age 15; and (iv) engage in sex before age 15. Observers assessing the outcomes will be blinded to group assignment. The primary outcome will be an adjusted, cluster-level intention to treat analysis, comparing outcomes in intervention and control villages at follow-up. We will also conduct survival analyses for the following secondary outcomes: marriage, sexual debut, pregnancy and entry into sex work. Complementary monitoring and evaluation, qualitative and economic research will be used to explore and describe intervention implementation, the pathways through which change occurs, and the cost-effectiveness of the intervention. DISCUSSION: This is an innovative trial of a comprehensive intervention to improve the quality of life and reduce HIV vulnerability among marginalised girls in northern Karnataka. The findings will be of interest to programme implementers, policy makers and evaluation researchers working in the development, education, and sexual and reproductive health fields. TRIAL REGISTRATION: ClinicalTrials.Gov NCT01996241 . 16th November 2013

Apples and oranges? Interpreting success in HIV prevention trials.

BACKGROUND: In the last decade, several large-scale, clinical trials evaluating the efficacy of novel HIV prevention products have been completed, and eight are currently underway or about to be reported. Little attention has been given in the literature to the level of protection sufficient to warrant introduction, and there is concern that using the term "efficacy" to describe the effect of user-controlled methods such as microbicides may mislead policymakers. DESIGN: We review how the fields of family planning, vaccine science and mathematical modelling understand and use the terms efficacy and effectiveness, and explore with simple mathematical models how trial results of user-controlled products relate to common understandings of these terms. RESULTS: Each field brings different assumptions, a different evidence base and different expectations to interpretations of efficacy and effectiveness - a reality that could cloud informed assessment of emerging data. CONCLUSION: When making judgments on the utility of new health technologies, it is important to use standards that yield appropriate comparisons for the innovation and that take into account the local epidemic and available alternatives