Some of the characteristics of post-modernism, such as opposition centers, denial of holism, identity, differences and uncertainties, have had a great impact on the view of education. Because the purpose of education ...Some of the characteristics of post-modernism, such as opposition centers, denial of holism, identity, differences and uncertainties, have had a great impact on the view of education. Because the purpose of education is the starting point and end-result of education, which is related to the general orientation of education development, we have to re-examine the concept of modem educational purpose in the post-modernism thought. The author holds that compared with the modem education view, the educational purpose view of the post-modem period shows the following characteristics： Maintaining the diversification and difference of individuahty, paying attention to cultivating social consciousness and critical ability, learning to understand and respect ecological harmony.展开更多
To evaluate the therapeutic efficiency of tissue-engineered human corneal endothelia (TE-HCEs) on rabbit primary corneal endotheliopathy (PCEP),TE-HCEs reconstructed with monoclonal human corneal endothelial cells (mc...To evaluate the therapeutic efficiency of tissue-engineered human corneal endothelia (TE-HCEs) on rabbit primary corneal endotheliopathy (PCEP),TE-HCEs reconstructed with monoclonal human corneal endothelial cells (mcHCECs) and modified denuded amniotic membranes (mdAMs) were transplanted into PCEP models of New Zealand white rabbits using penetrating keratoplasty.The TE-HCEs were examined using diverse techniques including slit-lamp biomicroscopy observation and pachymeter and tonometer measurements in vivo,and fluorescent microscopy,alizarin red staining,paraffin sectioning,scanning and transmission electron microscopy observations in vitro.The corneas of transplanted eyes maintained transparency for as long as 200 d without obvious edema or immune rejection.The corneal thickness of transplanted eyes decreased gradually after transplanting,reaching almost the thickness of normal eyes after 156 d,while the TE-HCE non-transplanted eyes were turbid and showed obvious corneal edema.The polygonal corneal endothelial cells in the transplanted area originated from the TE-HCE transplant.An intact monolayer corneal endothelium had been reconstructed with the morphology,cell density and structure similar to those of normal rabbit corneal endothelium.In conclusion,the transplanted TE-HCE can reconstruct the integrality of corneal endothelium and restore corneal transparency and thickness in PCEP rabbits.The TE-HCE functions normally as an endothelial barrier and pump and promises to be an equivalent of HCE for clinical therapy of human PCEP.展开更多
文摘Some of the characteristics of post-modernism, such as opposition centers, denial of holism, identity, differences and uncertainties, have had a great impact on the view of education. Because the purpose of education is the starting point and end-result of education, which is related to the general orientation of education development, we have to re-examine the concept of modem educational purpose in the post-modernism thought. The author holds that compared with the modem education view, the educational purpose view of the post-modem period shows the following characteristics： Maintaining the diversification and difference of individuahty, paying attention to cultivating social consciousness and critical ability, learning to understand and respect ecological harmony.
基金Project (Nos.2001AA625050 and 2006AA02A132) supported by the National High-Tech R&D Program (863) of China
文摘To evaluate the therapeutic efficiency of tissue-engineered human corneal endothelia (TE-HCEs) on rabbit primary corneal endotheliopathy (PCEP),TE-HCEs reconstructed with monoclonal human corneal endothelial cells (mcHCECs) and modified denuded amniotic membranes (mdAMs) were transplanted into PCEP models of New Zealand white rabbits using penetrating keratoplasty.The TE-HCEs were examined using diverse techniques including slit-lamp biomicroscopy observation and pachymeter and tonometer measurements in vivo,and fluorescent microscopy,alizarin red staining,paraffin sectioning,scanning and transmission electron microscopy observations in vitro.The corneas of transplanted eyes maintained transparency for as long as 200 d without obvious edema or immune rejection.The corneal thickness of transplanted eyes decreased gradually after transplanting,reaching almost the thickness of normal eyes after 156 d,while the TE-HCE non-transplanted eyes were turbid and showed obvious corneal edema.The polygonal corneal endothelial cells in the transplanted area originated from the TE-HCE transplant.An intact monolayer corneal endothelium had been reconstructed with the morphology,cell density and structure similar to those of normal rabbit corneal endothelium.In conclusion,the transplanted TE-HCE can reconstruct the integrality of corneal endothelium and restore corneal transparency and thickness in PCEP rabbits.The TE-HCE functions normally as an endothelial barrier and pump and promises to be an equivalent of HCE for clinical therapy of human PCEP.
