由中国功能语言学研究会主办、北京师范大学外文学院承办的"第6届中国系统功能语言学学术活动周"(The 6th Chinese Systemics Week),于2006年4月20-25日在北京师范大学英东学术演讲厅举行。学术周活动包括11位中外系统功能语...由中国功能语言学研究会主办、北京师范大学外文学院承办的"第6届中国系统功能语言学学术活动周"(The 6th Chinese Systemics Week),于2006年4月20-25日在北京师范大学英东学术演讲厅举行。学术周活动包括11位中外系统功能语言学知名专家学者做大会学术报告,成立北京师范大学功能语言学研究中心和聘请国内外一批知名专家和学者为名誉或兼职教授以及中心的顾问。着重陈述大会报告的主要内容,并分别予以简评,最后扼要报道其他相关信息。展开更多
AIM: To analyze the prognostic factors influencing the overall survival of peripheral cholangiocarcinoma (PCC) patients undergoing surgical treatment during 25 years at a single institution. METHODS: This study retros...AIM: To analyze the prognostic factors influencing the overall survival of peripheral cholangiocarcinoma (PCC) patients undergoing surgical treatment during 25 years at a single institution. METHODS: This study retrospectively reviewed prospectively collecting data about 373 patients with historically proven PCC who underwent surgical treatment between 1977 and 2001. RESULTS: Three hundred and seventy-three PCC patients (159 men and 214 women) underwent surgical treatment from 1977 to 2001. Among them, 187 PCC patients underwent hepatectomy and 135 had curative resection (curative resectability rate: 36.2%). The follow-up duration ranged from 1.05 to 167.6 mo (mean/median = 14.1/7.2 mo). Overall cumulative survival rates at 1, 3, and 5 years were 32.5%, 9.2%, and 4.1%, respectively. Univariate log-rank analysis identified the following as adverse influences on overall survival: presence of symptoms, absence of mucobilia, elevated CEA and CA 19-9 levels, non-papillary tumor type, receiving non-hepatectomy, advanced tumor staging, lack of post-operative chemotherapy, and radiotherapy. Meanwhile, multivariate Cox's proportional hazard analysis demonstrated that absence of mucobilia, non-papillary tumor type, advanced tumor staging, non-hepatectomy, and lack of post-operative chemotherapy were the five independent prognostic factors that adversely affected overall survival. CONCLUSION: Favorable overall survival of PCC patients undergoing surgical treatment depends on early tumor stage, presence of mucobilia, papillary tumor type, hepatic resection, and post-operative chemotherapy.展开更多
The life cycle of technology is one of the most important indexes to weigh up the risk of the investment to neo tech.There are so many uncertainties because it is conditioned by a lot of factors,we can not make a rati...The life cycle of technology is one of the most important indexes to weigh up the risk of the investment to neo tech.There are so many uncertainties because it is conditioned by a lot of factors,we can not make a rational forecasting by traditional assessment method.So this paper gives a comprehensive consideration to the factors that influence production and makes some modification to production function, and establishes the life cycle of technology assessmet model by the method of fuzzy mathematics. So it quantifies the risk of investment.We can take it as one foundational index for the decision making of the investment.展开更多
文摘由中国功能语言学研究会主办、北京师范大学外文学院承办的"第6届中国系统功能语言学学术活动周"(The 6th Chinese Systemics Week),于2006年4月20-25日在北京师范大学英东学术演讲厅举行。学术周活动包括11位中外系统功能语言学知名专家学者做大会学术报告,成立北京师范大学功能语言学研究中心和聘请国内外一批知名专家和学者为名誉或兼职教授以及中心的顾问。着重陈述大会报告的主要内容,并分别予以简评,最后扼要报道其他相关信息。
文摘AIM: To analyze the prognostic factors influencing the overall survival of peripheral cholangiocarcinoma (PCC) patients undergoing surgical treatment during 25 years at a single institution. METHODS: This study retrospectively reviewed prospectively collecting data about 373 patients with historically proven PCC who underwent surgical treatment between 1977 and 2001. RESULTS: Three hundred and seventy-three PCC patients (159 men and 214 women) underwent surgical treatment from 1977 to 2001. Among them, 187 PCC patients underwent hepatectomy and 135 had curative resection (curative resectability rate: 36.2%). The follow-up duration ranged from 1.05 to 167.6 mo (mean/median = 14.1/7.2 mo). Overall cumulative survival rates at 1, 3, and 5 years were 32.5%, 9.2%, and 4.1%, respectively. Univariate log-rank analysis identified the following as adverse influences on overall survival: presence of symptoms, absence of mucobilia, elevated CEA and CA 19-9 levels, non-papillary tumor type, receiving non-hepatectomy, advanced tumor staging, lack of post-operative chemotherapy, and radiotherapy. Meanwhile, multivariate Cox's proportional hazard analysis demonstrated that absence of mucobilia, non-papillary tumor type, advanced tumor staging, non-hepatectomy, and lack of post-operative chemotherapy were the five independent prognostic factors that adversely affected overall survival. CONCLUSION: Favorable overall survival of PCC patients undergoing surgical treatment depends on early tumor stage, presence of mucobilia, papillary tumor type, hepatic resection, and post-operative chemotherapy.
文摘The life cycle of technology is one of the most important indexes to weigh up the risk of the investment to neo tech.There are so many uncertainties because it is conditioned by a lot of factors,we can not make a rational forecasting by traditional assessment method.So this paper gives a comprehensive consideration to the factors that influence production and makes some modification to production function, and establishes the life cycle of technology assessmet model by the method of fuzzy mathematics. So it quantifies the risk of investment.We can take it as one foundational index for the decision making of the investment.
