548 research outputs found

    Critical Internationalization: Moving from Theory to Practice

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    This article utilizes critical social theory to illuminate structures of inequality that undergird certain practices of internationalization in higher education institutions, particularly in U.S. institutions. We demonstrate how such theory can be productively employed to analyze three key dimensions of contemporary internationalization: 1) a representational dimension, 2) a political-economic dimension, and 3) a symbolic capital dimension. We argue that these three elements are central to any critical conceptualization of internationalization that has at its core a consideration of equity, ethics, and social justice. The overarching goal of this article is to illustrate how critical social theory can foster more extensive debate regarding the material and ideological systems of exclusion in international education and contribute to the task of reimagining internationalization

    Interpreting climate model projections of extreme weather events

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    AbstractThe availability of output from climate model ensembles, such as phases 3 and 5 of the Coupled Model Intercomparison Project (CMIP3 and CMIP5), has greatly expanded information about future projections, but there is no accepted blueprint for how this data should be utilized. The multi-model average is the most commonly cited single estimate of future conditions, but higher-order moments representing the variance and skewness of the distribution of projections provide important information about uncertainty. We have analyzed a set of statistically downscaled climate model projections from the CMIP3 archive to assess extreme weather events at a level aimed to be appropriate for decision makers. Our analysis uses the distribution of 13 global climate model projections to derive the inter-model standard deviation, skewness, and percentile ranges for simulated changes in extreme heat, cold, and precipitation by the mid-21st century, based on the A1B emissions scenario. These metrics provide information on overall confidence across the entire range of projections (via the inter-model standard deviation), relative confidence in upper-end versus lower-end changes (via skewness), and quantitative uncertainty bounds (derived from bootstrapping).Over our analysis domain, which covers the northeastern United States and southeastern Canada, some primary findings include: (1) greater confidence in projections of less extreme cold than more extreme heat and intense precipitation, (2) greater confidence in relatively conservative projections of extreme heat, and (3) higher spatial variability in the confidence of projected increases in heavy precipitation. In addition, we describe how a simplified bootstrapping approach can assist decision makers by estimating the probability of changes in extreme weather events based on user-defined percentile thresholds

    From gap to debt: Rethinking equity metaphors in education

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    This article draws upon my keynote address delivered at the 44th Oceania and Comparative and International Education Society (OCIES) Conference held at the University of Sydney.  It examines how the metaphors and other forms of symbolic language used to describe educational dilemmas shape the responses that are imaginable in addressing them.  In particular, it argues for a shift from the metaphor of equity gaps to one of education debt so as to recognize more fully the political, temporal, and spatial dimensions of inequity and inequality.  The article uses examples from the U.S. and Tanzania but suggests that the metaphor of debt has relevance for countries across Oceania and in other world regions

    In Memoriam

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    The International Journal of Human Rights Education honors the lives and contributions of the following scholars and human rights advocates who recently passed away: Betty Reardon, Ian Harris, Johan Galtung, and J. Paul Martin

    The Influence of Arctic Amplification on Mid-latitude Summer Circulation

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    Accelerated warming in the Arctic, as compared to the rest of the globe, might have profound impacts on mid-latitude weather. Most studies analyzing Arctic links to mid-latitude weather focused on winter, yet recent summers have seen strong reductions in sea-ice extent and snow cover, a weakened equator-to-pole thermal gradient and associated weakening of the mid-latitude circulation. We review the scientific evidence behind three leading hypotheses on the influence of Arctic changes on mid-latitude summer weather: Weakened storm tracks, shifted jet streams, and amplified quasi-stationary waves. We show that interactions between Arctic teleconnections and other remote and regional feedback processes could lead to more persistent hot-dry extremes in the mid-latitudes. The exact nature of these non-linear interactions is not well quantified but they provide potential high-impact risks for society

    The Pluto problem: reflexivities of discomfort in teacher professional development

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    This article utilises narrative inquiry as a means to explore reflexively our roles as two scholars/teacher educators with extensive experience in education and international development initiatives in East and Southern Africa. It focuses on a teacher professional development program in Tanzania we helped initiate and facilitate for more than five years whose aim was to promote more critical, learner-centred approaches to teaching across the country’s secondary school curriculum. We narrate several key incidents from the program that led us to examine our complicity in establishing and maintaining the very hierarchies of knowledge production and dissemination the program sought to challenge. Throughout, we engage reflexively with postcolonial theory in an effort to provincialise the Anglo-American assumptions about pedagogy implicit in learner-centred approaches to teaching that form a key aspect of contemporary global education reform

    Glacial Inception in Marine Isotope Stage 19: An Orbital Analog for a Natural Holocene Climate

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    The Marine Isotope Stage 19c (MIS19c) interglaciation is regarded as the best orbital analog to the Holocene. The close of MIS19c (~777,000 years ago) thus serves as a proxy for a contemporary climate system unaffected by humans. Our global climate model simulation driven by orbital parameters and observed greenhouse gas concentrations at the end of MIS19c is 1.3 K colder than the reference pre-industrial climate of the late Holocene (year 1850). Much stronger cooling occurs in the Arctic, where sea ice and year-round snow cover expand considerably. Inferred regions of glaciation develop across northeastern Siberia, northwestern North America, and the Canadian Archipelago. These locations are consistent with evidence from past glacial inceptions and are favored by atmospheric circulation changes that reduce ablation of snow cover and increase accumulation of snowfall. Particularly large buildups of snow depth coincide with presumed glacial nucleation sites, including Baffin Island and the northeast Canadian Archipelago. These findings suggest that present-day climate would be susceptible to glacial inception if greenhouse gas concentrations were as low as they were at the end of MIS 19c

    Past and future interannual variability in Arctic sea ice in coupled climate models

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    The diminishing Arctic sea ice pack has been widely studied, but previous research has mostly focused on time-mean changes in sea ice rather than on short-term variations that also have important physical and societal consequences. In this study we test the hypothesis that future interannual Arctic sea ice area variability will increase by utilizing 40 independent simulations from the Community Earth System Model's Large Ensemble (CESM-LE) for the 1920–2100 period and augment this with simulations from 12 models participating in the Coupled Model Intercomparison Project Phase 5 (CMIP5). Both CESM-LE and CMIP5 models project that ice area variability will indeed grow substantially but not monotonically in every month. There is also a strong seasonal dependence in the magnitude and timing of future variability increases that is robust among CESM ensemble members. The variability generally correlates with the average ice retreat rate, before there is an eventual disappearance in both terms as the ice pack becomes seasonal in summer and autumn by late century. The peak in variability correlates best with the total area of ice between 0.2 and 0.6&thinsp;m monthly thickness, indicating that substantial future thinning of the ice pack is required before variability maximizes. Within this range, the most favorable thickness for high areal variability depends on the season, especially whether ice growth or ice retreat processes dominate. Our findings suggest that thermodynamic melting (top, bottom, lateral) and growth (frazil, congelation) processes are more important than dynamical mechanisms, namely ice export and ridging, in controlling ice area variability.</p
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