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Xiaobing Wang,Chengfang Liu,Linxiu Zhang,Renfu Luo,Thomas Glauben,Yaojiang Shi,Scott Rozelle,Brian Sharbono 서울대학교 교육연구소 2011 Asia Pacific Education Review Vol.12 No.4
Although universities have expanded in size, it is unclear whether the poor have benefited. If there are high returns to college education, then increasing access of the poor to college has important welfare implications. The objective of this paper is to document the rates of enrollment into college of the poor and to identify the hurdles to doing so. Relying on several sets of data, including a survey of college students from universities in three poor provinces in China, we have found that the college matriculation rate of the poor is substantially lower than students from non-poor families; the same is true for rural women and minorities. Clearly, there are barriers that are keeping the rural poor out. The paper also demonstrates that the real hurdles are not during the years of secondary schooling or at the time of admissions to college. The real impediments keeping the rural poor from pursuing a college education arise long before high school-as early as preschool and elementary school years-and are present throughout the entire schooling system.
Cheng, Fang,Chen, Hao,Zhang, Lei,Ruo-Hong, Li,Liu, Yi,Sun, Jian-Fang Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.1
Neural precursor cell-expressed developmentally down-regulated 8 (NEDD8), a ubiquitin-like protein, mainly functions through covalent ligation to cullin proteins. Conjugation of NEDD8 with cullins can promote ubiquitination, which plays a critical role in the degradation of many proteins. UBA3 is the subunit of NEDD8-activating enzyme which is one of the keys for NEDD8 linkage to cullin proteins. Previous research showed NEDD8 conjugation to be up-regulated in highly proliferative cell lines. In the present study, up-regulated NEDD8 conjugation was observed in melanoma cell lines by Western blot analysis. After down-regulation with a RNAi to UBA3, proliferation of M14 was suppressed in vitro and in vivo. In conclusion, up-regulated NEDD8 conjugation may be involved in the development of melanoma. Interference in this pathway might offera promising method for melanoma therapy.