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电视频道专业化的高级形式——细分化阶段 被引量:4
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作者 赵继光 《声屏世界》 2003年第4期48-49,共2页
电视频道专业化是国际电视业发展的大势,我国电视专业频道的发展应该顺应潮流,适时而动.然而实践表明,电视频道专业化不是一蹴而就的,正如大多数事物的发展需要一个过程一样,电视频道的专业化也是一个渐进的发展过程,专业频道的发展具... 电视频道专业化是国际电视业发展的大势,我国电视专业频道的发展应该顺应潮流,适时而动.然而实践表明,电视频道专业化不是一蹴而就的,正如大多数事物的发展需要一个过程一样,电视频道的专业化也是一个渐进的发展过程,专业频道的发展具有阶段性. 展开更多
关键词 电视频道 专业化 细分化阶段 目标受众 电视业 产业化经营 受众市场培育
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电视频道专业化阶段论 被引量:3
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作者 赵继光 《电视研究》 CSSCI 北大核心 2003年第1期36-38,共3页
关键词 电视频道 频道专业化 类型化阶段 细分化阶段 经济利益 受众市场 有偿收视 专家型人才
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Novel methods for studying normal and disordered erythropoiesis
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作者 LIU Jing HAN Xu AN XiuLi 《Science China(Life Sciences)》 SCIE CAS CSCD 2015年第12期1270-1275,共6页
Erythropoiesis is a process during which multipotential hematopoietic stem cells proliferate, differentiate and eventually form mature erythrocytes. Interestingly, unlike most cell types, an important feature of eryth... Erythropoiesis is a process during which multipotential hematopoietic stem cells proliferate, differentiate and eventually form mature erythrocytes. Interestingly, unlike most cell types, an important feature of erythropoiesis is that following each mitosis the daughter cells are morphologically and functionally different from the parent cell from which they are derived, demonstrating the need to study erythropoiesis in a stage-specific manner. This has been impossible until recently due to lack of methods for isolating erythroid cells at each distinct developmental stage. This review summarizes recent advances in the development of methods for isolating both murine and human erythroid cells and their applications. These methods provide powerful means for studying normal and impaired erythropoiesis associated with hematological disorders. 展开更多
关键词 ERYTHROPOIESIS erythroid progenitors ERYTHROBLAST surface markers transcriptional profile
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