In despite of fluctuation in recent years, the grain yield in China has been increasing, which relieves the conflict between supply and demand and turns the situation of food security good. However, because of the rap...In despite of fluctuation in recent years, the grain yield in China has been increasing, which relieves the conflict between supply and demand and turns the situation of food security good. However, because of the rapid increase in food consumption, the conflicts of food quality and structure in the supply and demand equilibrium has become more and more obvious and the long-effective mechanism of food security has not been estab-lished yet. It is found that the factors affecting food security in China include the scarcity and dissipation of resources, farmers’ low enthusiasm in planting grain crops and the inappropriateness of the emphasis and measures of macro-economic regulation and control. Therefore, the authors advance to optimize resources allocation, strengthen macro-economic regulation and control and policy stimulation and establish the mechanism of allocating grain production cost, to set up the long-effective mechanism of China food security and keep it stable in the long term.展开更多
Investor education is not only one of the most important and fundamental institutional constructions at capital market, but also an important part of the cultural construction of capital market. At the present stage, ...Investor education is not only one of the most important and fundamental institutional constructions at capital market, but also an important part of the cultural construction of capital market. At the present stage, the long-effect mechanism for investor education is not only a demand of China＇s securities market on its healthy development, but also an objective reality that China＇s investor education is necessary to confront with. For these reasons, it is necessary for China to deepen investor education, expand investor education platform, strengthen risk prevention, and take initiative to build up a multi-level investor education system, and ultimately establish and improve a long-effect mechanism for investor education, so as to ensure the stable, harmonious and order development of China＇s Securities market in futures.展开更多
目的:比较胸腔镜辅助(VATS)经胸内固定与传统开胸手术对多发肋骨骨折患者近远期疗效。方法:对106例多发肋骨骨折患者资料进行回顾性分析,依据手术方式的不同分为传统组(传统开胸手术)和VATS组(VATS经胸内固定术),应用倾向性评分匹配法(...目的:比较胸腔镜辅助(VATS)经胸内固定与传统开胸手术对多发肋骨骨折患者近远期疗效。方法:对106例多发肋骨骨折患者资料进行回顾性分析,依据手术方式的不同分为传统组(传统开胸手术)和VATS组(VATS经胸内固定术),应用倾向性评分匹配法(卡钳值0.01,1∶1)匹配两组,最终每组各53例。比较两组患者围手术期指标、并发症发生率,术后疼痛程度(VAS)、病情恢复情况、远期疗效。结果:VATS组手术时间、总住院时间等均短于传统组(P<0.05),并发症发生率低于传统组(P<0.05);术后5 d及7 d,两组VAS评分均随时间延长而下降(P<0.05),且VATS组术后1、5、7 d VAS评分均低于传统组(P<0.05);VATS组骨折对位率、切口愈合率、术后效果优良率均高于传统组(P<0.05)。结论:与传统开胸手术相比,VATS经胸内固定手术可准确定位,缩短手术时间,能促进多发肋骨骨折术后恢复,术后并发症较少,远期疗效理想,值得推广应用。展开更多
文摘In despite of fluctuation in recent years, the grain yield in China has been increasing, which relieves the conflict between supply and demand and turns the situation of food security good. However, because of the rapid increase in food consumption, the conflicts of food quality and structure in the supply and demand equilibrium has become more and more obvious and the long-effective mechanism of food security has not been estab-lished yet. It is found that the factors affecting food security in China include the scarcity and dissipation of resources, farmers’ low enthusiasm in planting grain crops and the inappropriateness of the emphasis and measures of macro-economic regulation and control. Therefore, the authors advance to optimize resources allocation, strengthen macro-economic regulation and control and policy stimulation and establish the mechanism of allocating grain production cost, to set up the long-effective mechanism of China food security and keep it stable in the long term.
文摘Investor education is not only one of the most important and fundamental institutional constructions at capital market, but also an important part of the cultural construction of capital market. At the present stage, the long-effect mechanism for investor education is not only a demand of China＇s securities market on its healthy development, but also an objective reality that China＇s investor education is necessary to confront with. For these reasons, it is necessary for China to deepen investor education, expand investor education platform, strengthen risk prevention, and take initiative to build up a multi-level investor education system, and ultimately establish and improve a long-effect mechanism for investor education, so as to ensure the stable, harmonious and order development of China＇s Securities market in futures.
文摘目的:比较胸腔镜辅助(VATS)经胸内固定与传统开胸手术对多发肋骨骨折患者近远期疗效。方法:对106例多发肋骨骨折患者资料进行回顾性分析,依据手术方式的不同分为传统组(传统开胸手术)和VATS组(VATS经胸内固定术),应用倾向性评分匹配法(卡钳值0.01,1∶1)匹配两组,最终每组各53例。比较两组患者围手术期指标、并发症发生率,术后疼痛程度(VAS)、病情恢复情况、远期疗效。结果:VATS组手术时间、总住院时间等均短于传统组(P<0.05),并发症发生率低于传统组(P<0.05);术后5 d及7 d,两组VAS评分均随时间延长而下降(P<0.05),且VATS组术后1、5、7 d VAS评分均低于传统组(P<0.05);VATS组骨折对位率、切口愈合率、术后效果优良率均高于传统组(P<0.05)。结论:与传统开胸手术相比,VATS经胸内固定手术可准确定位,缩短手术时间,能促进多发肋骨骨折术后恢复,术后并发症较少,远期疗效理想,值得推广应用。
