Biomedical Research ; Humans ; Multicenter Studies as Topic ; Vestibular Diseases ; diagnosis ; therapy

Ear Diseases ; congenital ; diagnosis ; surgery ; Ear, External ; abnormalities ; Ear, Middle ; abnormalities ; Humans

Evidence-Based Medicine ; Humans ; Tinnitus ; diagnosis ; Vertigo ; diagnosis

AIM and METHODS: In situ hybridization and image-analysis system were used to investigate the expression of NOSⅢ mRNA in cultured porcine pulmonary artery endothelial cells (PAEC) under normoxic or chronic hypoxic conditions. RESULTS: The expression of NOSⅢ mRNA were increased by 48%, 125%, 119% respectively in the 2nd, 4th, 6th subculture of normoxic PAEC after expouse to acute hypoxia for 12 hours while in chronic hypoxic group,the expression of Ⅲ NOS mRNA were increased by 92%, 245%, 565% separately. The increase was more apparent in chronic hypoxic group than in normoxic group and became more significant following the prolonging duration of hypoxia. CONCLUSION: Chronic hypoxia increased the expression of NOSⅢ gene in PAEC in response to acute hypoxia. Nitric oxide may play an important role in the decrease of hypoxic pulmonary vasoconstriction caused by chronic hypoxia.

The balanced scorecard, a new performance management tool used by enterprises, transcends the traditional assessment method of measuring an enterprise only from the financial perspective and renders it possible to view an enterprise simultaneously from four perspectives: financial, customer, internal process, and learning and growth. The balanced scorecard, which can also be used in the medical and health field, enables the hospital to continuously improve performance so as to realize its vision and strategic goals. The paper gives an account of the concept, development steps and principles of the balanced scorecard and its application in hospital strategic management, thus identifying a new channel for hospital development.

Humans ; Vertigo

Anthropometry ; Female ; Humans ; Male ; Postural Balance ; Vision, Ocular ; Young Adult

Audiology ; Deafness ; genetics ; Humans ; Otolaryngology ; trends

Objective To analyse the key influential factors for research performance of medical colleges and provide evidenes for further research management. Methods A questionnaire suvery was carried out in Shanghai Jiaotong University School of Medicine.Through stratified cluster sampling,those who assumed all ranks of projects from 2001 to 2006 in Basic Medical College and some affiliated hospitals were investigated.Two hundred and sixty questionnaires were sent out and 211(81.2%) were reclaimed.Delphi and comprehensive analysis were used to measure the research performance,and multi-Logistic regression was employed to analyze the influential factors for research performance.Results The key influential factors for research performance included research team,research investment,age of researchers,international exchanges and communications,and extra working hours for research.Conclusion To improve the research performance of medical colleges,it is most important to strengthen research team development,expand research investment,promote acedemic exchanges and communications,and initiate dedicated spirit for research work.