case controlled study 中文意思是什麼
case controlled study
解釋
病例對照研究-
The focus of the thesis lies in an elaboration of the influences exerted upon a listed company ' s profit return by the monopolist position the state - owned shares occupy, by the degree to which share - right is concentrated, and by the division of non - negotiable shares and negotiable shares, as well as of the positive promotion to the company ' s profit return by the system of executives buying - back shares and employees " share - ownership. based on theoretical analysis and case study, the thesis proposes some measures for optimizing the share - right composition and enhancing the profit return of the listed companies. the conclusion can be summed up as follows : ( 1 ) owing to the absence of real trustor, the unduly long, hence low, efficiency of the agency chain, state - owned shares are prone to being controlled by insiders and to the problem of share - holders " interests being embezzled by insiders
基本的分析結論可以概括為如下幾點： （一）國有股由於真正的委託人缺位，代理鏈條過長，代理效率低下，容易產生內部人控制，並發生內部人侵佔股東利益的問題，法人股在公司治理中的效率明顯優于國有股，因此，如何完善國有資產管理體制是優化股權結構的關鍵，本文提出了完善國有資產管理體制的具體建議； （二）在非流通股與流通股並存的股權分割下，非流通股股東與流通股股東具有不同的目標函數，非流通股股東的目標函數是提高每股凈資產，而流通股的目標函數是股票的二級市場價格，目標函數的不一致，導致股東之間行為的不一致，相互沖突的行為造成效率的損失。 -
A case - controlled study led by professor david sc hui, head of division of respiratory medicine, and professor gregory cheng, head of division of haematology of the department of medicine and therapeutics, cuhk has shown that osa, through repeated episodes of arousals, may lead to platelet activation
由中大內科及藥物治療學系呼吸科主任許樹昌教授及血液科主任鄭彥銘教授領導的研究發現，睡眠中不斷蘇醒導致血小板異常活躍，後者往往為引致缺血性中風病的原因之一。
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