120 research outputs found
Examining the Associations Between Sustainable Development Population Policies and Human Trafficking
Article published in the Michigan State International Law Review
Civic engagement, pedagogy, and information technology on Web sites for youth
Scholars of political socialization are paying increasing attention to how the Internet might help cure the civic disengagement of youth. This content analysis of a sample of 73 U.S.-based civic Web sites for youth introduces a framework for evaluating Web sites’ strategies for fostering active communication for citizenship. We offer the first systematic assessment of the extent to which a broad range of Web sites aim to develop young people’s abilities to use information and communication technology (ICT) as a vehicle for civic participation and to engage with ICT as a policy domain that encompasses issues (such as freedom of speech and intellectual property rights) that shape the conditions for popular sovereignty online. The study finds low levels of interactive features (such as message boards) that allow young people to share editorial control by offering their own content. In addition, few sites employ active pedagogical techniques (such as simulations) that research suggests are most effective at developing civic knowledge, skills, and participation. We also find little attention to ICT policy issues, which could engage budding citizens in debates over the formative conditions for political communication in the information age. We conclude with suggestions for civic Web site designers and hypotheses for user studies to test
Examining the Associations Between Sustainable Development Population Policies and Human Trafficking
Article published in the Michigan State International Law Review
Games for civic learning: A conceptual framework and agenda for research and design
Scholars, educators, and media designers are increasingly interested in whether and how digital games might contribute to civic learning. However, there are three main barriers to advancing understanding of games’ potential for civic education: the current practices of formal schooling, a dearth of evidence about what kinds of games best inspire learning about public life, and divergent paradigms of civic engagement. In response, this article develops a conceptual framework for how games might foster civic learning of many kinds. The authors hypothesize that the most effective games for civic learning will be those that best integrate game play and content, that help players make connections between their individual actions and larger social structures, and that link ethical and expedient reasoning. This framework suggests an agenda for game design and research that could illuminate whether and how games can be most fruitfully incorporated into training and education for democratic citizenship and civic leadership
Portrayals of information and communication technology on World Wide Web sites for girls
This study reports a content analysis of 35 World Wide Web sites that included in their mission the goal of engaging girls with information and communication technology (ICT). It finds that sites emphasize cultural and economic uses of ICT, doing little to foster civic applications that could empower girls as citizens of the information age. The study also finds that sites foster a narrow range of ICT proficiencies, focusing mostly on areas such as communication, in which girls have already achieved parity with boys. An examination of the role models portrayed in ICT occupations indicates that the sites show females mainly in elite technology jobs, reversing stereotypical mass media depictions of females in low-status roles in relation to ICT. Employing an original index of ICT knowledge and skills, the study finds that the sites that scored highest both on fostering comprehensive knowledge and skills as well as featuring civic content were general interest Web communities. Ownership (for-profit or not-for-profit) of sites was less important than editorial control: Sites that offered girls a place to contribute their own content were more likely to offer civic material and a broader range of ICT knowledge and skills. We conclude with recommendations for Web site designers to rethink their design strategies and their rationales for closing the gender gap in computing
EMAP, an echinoderm microtubule-associated protein found in microtubule-ribosome complexes
The major non-tubulin polypeptide found associated with microtubules purified from unfertilized sea urchin eggs by cycles of pH-dependent assembly has a M(r) of 77,000. The 77,000 M(r) polypeptide is heat- and acid-labile, and is antigenically distinct from the mammalian brain MAPs, MAP-2 and tau. Affinity-purified antiserum against the 77,000 M(r) polypeptide was used to survey a variety of cells and tissues for the presence of antigenically related polypeptides. A cross-reacting polypeptide, ranging in M(r) from 72,000 to 80,000, was found in microtubule preparations from a wide variety of echinoderms, including sea urchins, starfish and sand dollars. Indirect immunofluorescence showed that the polypeptide was found in interphase as well as mitotic microtubule arrays. No cross-reacting material was detected in microtubules isolated from marine molluscs, mammalia brain or mouse B16 cultured cells. Because the 77,000 M(r) MAP is abundant in echinoderms, we have called it EMAP for echinoderm microtubule-associated protein. Although the precise function of the EMAP is not known, our data suggest that the EMAP is involved in the attachment of ribosomes to microtubules. Large numbers of ribosomes are attached to the walls of EMAP-containing microtubules, but not EMAP-deficient microtubules. Removal of the EMAP from the microtubule by salt-extraction results in the release of ribosomes from the microtubule, indicating that the EMAP may form part or all of the long tapered stalk that connects these two organelles
Evolving Particles in the 2022 Hunga Tonga—Hunga Ha'apai Volcano Eruption Plume
The Multi-angle Imaging SpectroRadiometer (MISR) aboard NASA’s Terra satellite observed the Hunga Tonga—Hunga Ha’apai (HTHH) 15 January eruption plume on seven occasions between 15 and 23 January 2022. From the MISR multi-angle, multi-spectral imagery we retrieve aerosol plume height geometrically, along with plume-level motion vectors, and derive radiometrically constraints on particle effective size, shape, and light-absorption properties. Parts of two downwind aerosol layers were observed in different places and times, one concentrated in the upper troposphere (11-18 km ASL), and a mid-stratosphere layer ~23 – 30+ km ASL. After the initial day (1/15), the retrievals identified only spherical, non-light-absorbing particles, typical of volcanic sulfate/water particles. The near-tropopause plume particles show constant, medium-small (several tenths of a micron) effective size over four days. The mid-stratosphere particles were consistently smaller, but retrieved effective particle size increased between 1/17 and 1/23, though they might have decreased slightly on 1/22. As a vast amount of water was also injected into the stratosphere by this eruption, models predicted relatively rapid growth of sulfate particles from the modest amounts of SO2 gas injected by the eruption to high altitudes along with the water (Zhu et al, 2022). MISR observations up to ten days after the eruption are consistent with these model predictions. The possible decrease in stratospheric particle size after initial growth was likely caused by evaporation, as the plume mixed with drier, ambient air. Particles in the lower-elevation plume observed on 1/15 were larger than all the downwind aerosols and contained significant non-spherical (likely ash) particles
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