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151.
Collin M. Timm Ryan R. Hansen Mitchel J. Doktycz Scott T. Retterer Dale A. Pelletier 《Biomicrofluidics》2015,9(6)
Microbial communities are complex heterogeneous systems that are influenced by physical and chemical interactions with their environment, host, and community members. Techniques that facilitate the quantitative evaluation of how microscale organization influences the morphogenesis of multispecies communities could provide valuable insights into the dynamic behavior and organization of natural communities, the design of synthetic environments for multispecies culture, and the engineering of artificial consortia. In this work, we demonstrate a method for patterning microbes into simple arrangements that allow the quantitative measurement of growth dynamics as a function of their proximity to one another. The method combines parylene-based liftoff techniques with microfluidic delivery to simultaneously pattern multiple bacterial species with high viability using low-cost, customizable methods. Quantitative measurements of bacterial growth for two competing isolates demonstrate that spatial coordination can play a critical role in multispecies growth and structure. 相似文献
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The Chinese government is pouring resources into building vocational education at all levels of the Chinese educational system. Based on ethnographic fieldwork conducted in three vocational secondary schools in 2007–2012, this article compares rural and urban schools to highlight the persistent urban–rural divide in implementing vocational education, and to understand popular resistance to vocational education and its effects on students and families. Through observations of classroom practice and interviews with students, parents, teachers, and administrators, the authors investigate the paradox of why vocational education is growing rapidly in China, even though parents and students have deeply-held objections to this form of schooling. 相似文献
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Debra G Warner Cynthia A Olney Fred B Wood Lucille Hansen Virginia M Bowden 《Journal of the Medical Library Association》2005,93(2):243-252
OBJECTIVES: The objective was to introduce the MedlinePlus Website to the predominantly Hispanic residents of the Lower Rio Grande Valley region of Texas by partnering with a health professions magnet high school (known as Med High). METHODS: Community assessment was used in the planning stages and included pre-project focus groups with students and teachers. Outreach methods included peer tutor selection, train-the-trainer sessions, school and community outreach, and pre- and posttests of MedlinePlus training sessions. Evaluation methods included Web statistics; end-of-project interviews; focus groups with students, faculty, and librarians; and end-of-project surveys of students and faculty. RESULTS: Four peer tutors reached more than 2,000 people during the project year. Students and faculty found MedlinePlus to be a useful resource. Faculty and librarians developed new or revised teaching methods incorporating MedlinePlus. The project enhanced the role of school librarians as agents of change at Med High. The project continues on a self-sustaining basis. CONCLUSIONS: Using peer tutors is an effective way to educate high school students about health information resources and, through the students, to reach families and community members. 相似文献
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