1,768 research outputs found

    Shadow education in the southeast of South Korea: Mothers' experiences and perspectives of shadow education

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    University of Minnesota Ph.D. dissertation. August 2014. Major: Organizational Leadership, Policy, and Development. Advisor: Gerald Fry. 1 computer file (PDF); ix, 215 pages, appendices A-C.This study examines mothers' experiences and perspectives of shadow education in the southeast regions of South Korea, Daegu and Changwon, in the multiple layered sociocultural and historical context of its society. When I was immersed in the mothers' world in those selected regions of South Korea in 2011 and 2012, expenditures on shadow education decreased for the first time. While there was still high demand for shadow education in order to secure "the foothold for better life opportunity", mothers I came across in the selected regions showed ambivalence about the prevalent pervasive shadow education. To fill the gap of literature on Korean shadow education, this study looked at mothers' motives for their children's shadow education and perceptions of social changes including education and family involvement. Their lived experiences and ambivalent feelings toward shadow education were scrutinized in order to understand the Korean shadow education phenomenon from the mothers' viewpoint. The study found that mothers' perspectives on shadow education practices were extremely complex. It is argued that mothers' pursuit of shadow education has been their way to adapt to the rapidly changing education and society. The mother participants perceived their role in their children's education as being most critical and their ways to be involved in their children's education were ever changing. The gendered practice of providing shadow education to children was changed from the image of `mothers watching from behind' to the image of `mothers suggesting ways in front'. What remains the same is, however, the strong connection between prestigious universities and desired occupations. Academic learning was still foundation of all endeavors for school aged children. The complexity of mothers' experiences of shadow education is also found in their ambivalence towards this prevalent phenomenon. Knowing the mothers' ambivalence and concern about educational migration, mothers wished to live in a society where true learning can take place for their children. Unique contributions of this study are to understand mothers' experiences and perceptions of Korean shadow education outside of the capital, Seoul, and mothers' perceptions of the different genres of shadow education. Mothers in the selected regions in the southeast of Korea, Daegu and Changwon, viewed mothers in Seoul as more demanding and motivated to provide shadow education and they legitimized some of their actions of providing extraordinary amounts of shadow education. Their viewpoints of educational environment in different places also went beyond the national border. Seeking a different educational environment abroad was, however, found only in several upper-middle class families who could afford such education. Stratified shadow education also suggests the role of shadow education in reproducing social class through education. Lastly, this study calls for further studies of transnational shadow education through educational migration and other family members' experiences and perspectives of the shadow education phenomenon

    Local perspectives of Korean shadow education

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    While some scholars view the use of shadow education—supplementary lessons provided by parents outside of school—as a cause for the rapid development of Korea, others raise concerns related to its secondary effects, including educational stress and corruption and reinforced social inequality. In this paper, I analyze interview data with four mothers in order to contribute to the literature on Korean shadow education at the local level. This study illustrates the reasons, particularly social pressures and insecure feelings, behind their choices to pursue shadow education for their children which has not yet surfaced in the discourse development and education

    The Faint End of the Quasar Luminosity Function at z ~ 4: Implications for Ionization of the Intergalactic Medium and Cosmic Downsizing

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    We present an updated determination of the z ~ 4 QSO luminosity function (QLF), improving the quality of the determination of the faint end of the QLF presented by Glikman et al. (2010). We have observed an additional 43 candidates from our survey sample, yielding one additional QSO at z = 4.23 and increasing the completeness of our spectroscopic follow-up to 48% for candidates brighter than R = 24 over our survey area of 3.76 deg^2. We study the effect of using K-corrections to compute the rest-frame absolute magnitude at 1450 Å compared with measuring M_(1450) directly from the object spectra. We find a luminosity-dependent bias: template-based K-corrections overestimate the luminosity of low-luminosity QSOs, likely due to their reliance on templates derived from higher luminosity QSOs. Combining our sample with bright quasars from the Sloan Digital Sky Survey and using spectrum-based M 1450 for all the quasars, we fit a double power law to the binned QLF. Our best fit has a bright-end slope, α = 3.3 ± 0.2, and faint-end slope, β = 1.6^(+0.8)_(–0.6). Our new data revise the faint-end slope of the QLF down to flatter values similar to those measured at z ~ 3. The break luminosity, though poorly constrained, is at M* = –24.1^(+0.7)_(–1.9), approximately 1-1.5 mag fainter than at z ~ 3. This QLF implies that QSOs account for about half the radiation needed to ionize the intergalactic medium at these redshifts

    Massive gravitons dark matter scenario revisited

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    We reexamine the massive graviton dark matter scenario (MGCDM) which was recently considered as an alternative to dark energy models. When introducing the native and effective equations of state (EoS), it is shown that there is no phantom phase in the evolution toward the far past. Also we show that the past accelerating phase arises from the interaction between massive graviton and cold dark matter.Comment: 13 pages, 6 figure
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