Objective: To explore the potential predictors of a live birth (LB) outcome among subfertile couples of Asian ethnicity undergoing the first fertility treatment cycle;to assess the cumulative live birth rates after su...Objective: To explore the potential predictors of a live birth (LB) outcome among subfertile couples of Asian ethnicity undergoing the first fertility treatment cycle;to assess the cumulative live birth rates after successive cycles;and to determine the incidence rate of spontaneous conception (SC).Methods:Subfertile couples were grouped according to treatment modalities at the first fertility treatment cycle: intrauterine insemination (IUI),in vitro fertilization (IVF), intracytoplasmic sperm injection (ICSI) and no treatment, and were followed-up for duration up to seven years. Multivariable logistic regression analysis was used for statistical analyses. Results: Age of female subjects [35-38 years, odds ratio (OR): 0.39;≥39 years, OR: 0.14], uterine factor subfertility (OR: 5.24), and treatment modalities (ORs: IUI 0.25, IVF 2.33 and ICSI 1.91) significantly predicted a LB outcome (P<0.05). The cumulative live birth rates were 11.7% IUI, 41.5% IVF, 27.5% ICSI and 22.6% from frozen embryo transfer cycles. The cumulative SC rate was 24.6% in the non-treated group and 10.7% in the treated group. All LBs from IVF cycles were delivered by the second cycle and within four years, compared to SC delivery of within five years in the non-treated group and six years in the treated group. Conclusions:Age of female subject, uterine factor and modalities of treatment are significant predictors for LB outcome at the first cycle. Higher delivery rates could be achieved following fewer successive IVF cycles and within a shorter duration compared to SC.展开更多
The paper puts forward a new thinking and thought in engineering structural reinforcement-“conception reinforcement”. The “conception reinforcement”means using the human being’s thinking and judgment, deciding th...The paper puts forward a new thinking and thought in engineering structural reinforcement-“conception reinforcement”. The “conception reinforcement”means using the human being’s thinking and judgment, deciding the fundamental question and principle of engineering structural reinforcement in macrocosm. It expounds the whole prestressing reinforcement technology owing to the direction of conception reinforcement thought, and introduces the prospect of engineering application.展开更多
The breakthrough of key core technology is a theoretical and practical strategic issue to realize the rise of the country.This paper analyzes the concept of key core technology and its breakthrough and analyzes its ch...The breakthrough of key core technology is a theoretical and practical strategic issue to realize the rise of the country.This paper analyzes the concept of key core technology and its breakthrough and analyzes its characteristics.Based on the perspective of participants,this paper summarizes the influencing factors of key core technology breakthroughs in enterprises:internal and external enterprises,universities and scientific research institutions,and government.This paper expands the relevant research on key core technology breakthroughs and provides inspiration for enterprises to carry out key core technology research and breakthrough practices.展开更多
Well integrity technology can effectively ensure the safety of the entire life cycle of oil and gas wells. With the exploration and development of more and more high-temperature, high-pressure, high-yield and deep wel...Well integrity technology can effectively ensure the safety of the entire life cycle of oil and gas wells. With the exploration and development of more and more high-temperature, high-pressure, high-yield and deep wells, and the constantly increasing requirements for safety and environmental protection in various countries, well integrity technology has become a research hot spot in the oil industry. Based on the analysis of the four basic concepts of well integrity: full life cycle, well integrity management system, well barrier, and risk assessment, this article conducts a comparative analysis of the development history of well integrity technologies at home and abroad, and systematically summarizes foreign wells. The current status of integrity technology, based on the above investigation and analysis, puts forward suggestions for the next development direction of well integrity technology, which has certain guiding significance for the development of the integrity of the next step.展开更多
At present, the rapid development of social economy, the security problem in peoples attention is increasing. Under the background of the grand security concept, the policy form is constantly changing, and the social ...At present, the rapid development of social economy, the security problem in peoples attention is increasing. Under the background of the grand security concept, the policy form is constantly changing, and the social demand for talents is constantly increasing. In order to study the setting of safety technology and management major, in higher vocational colleges, the establishment of this major should be established. Analyze the construction of professional courses in the professional construction of colleges and universities, follow the principles of industry ability optimization, core ability training and basic ability forging, and deeply integrate the teaching materials and the theoretical curriculum system, which is reflected in the ideological and political education of safety courses. Practice ideal based on theory, strengthen the construction of comprehensive training room, strengthen the construction of drones and VR professional professional safety innovative training room, constantly meet the demand of educational fusion, strengthen university-enterprise cooperation, create social service public practice course, to improve vocational colleges professional quality, lay higher vocational security professionals training basis, for the safety technology and management talents pave the way of practice and development in the enterprise.展开更多
高等院校作为国家科技人才孵化及汇集的重要场所,肩负着为国育人、为党育才的使命。运用科学、技术与社会(Science,Technology and Society)跨学科的教学和实践活动探索地方应用型高校培养创新科技人才的新途径,能使学生在理解科学和技...高等院校作为国家科技人才孵化及汇集的重要场所,肩负着为国育人、为党育才的使命。运用科学、技术与社会(Science,Technology and Society)跨学科的教学和实践活动探索地方应用型高校培养创新科技人才的新途径,能使学生在理解科学和技术的基础上更好地应对社会问题和挑战。在STS教育理念下,可以通过以下措施进一步探索和实践科技创新人才培养路径:优化专业结构,完善专业动态调整机制,提高专业办学与经济社会发展的契合度;完善“平台+模块”的课程建设架构,创新实践教学体系;建立协同育人机制,加强师资队伍建设;深化拔尖人才培养模式改革,完善教学评价制度。展开更多
Aims and scope Being an international journal,China Ocean Engineering (COE) takes its prime function as the integration of new research concepts,equipment,technology,materials and structures and other scientific advan...Aims and scope Being an international journal,China Ocean Engineering (COE) takes its prime function as the integration of new research concepts,equipment,technology,materials and structures and other scientific advances within the field of estuarial,coastal,offshore,and deepwater engineering with particular reference to developments.展开更多
文摘Objective: To explore the potential predictors of a live birth (LB) outcome among subfertile couples of Asian ethnicity undergoing the first fertility treatment cycle;to assess the cumulative live birth rates after successive cycles;and to determine the incidence rate of spontaneous conception (SC).Methods:Subfertile couples were grouped according to treatment modalities at the first fertility treatment cycle: intrauterine insemination (IUI),in vitro fertilization (IVF), intracytoplasmic sperm injection (ICSI) and no treatment, and were followed-up for duration up to seven years. Multivariable logistic regression analysis was used for statistical analyses. Results: Age of female subjects [35-38 years, odds ratio (OR): 0.39;≥39 years, OR: 0.14], uterine factor subfertility (OR: 5.24), and treatment modalities (ORs: IUI 0.25, IVF 2.33 and ICSI 1.91) significantly predicted a LB outcome (P<0.05). The cumulative live birth rates were 11.7% IUI, 41.5% IVF, 27.5% ICSI and 22.6% from frozen embryo transfer cycles. The cumulative SC rate was 24.6% in the non-treated group and 10.7% in the treated group. All LBs from IVF cycles were delivered by the second cycle and within four years, compared to SC delivery of within five years in the non-treated group and six years in the treated group. Conclusions:Age of female subject, uterine factor and modalities of treatment are significant predictors for LB outcome at the first cycle. Higher delivery rates could be achieved following fewer successive IVF cycles and within a shorter duration compared to SC.
文摘The paper puts forward a new thinking and thought in engineering structural reinforcement-“conception reinforcement”. The “conception reinforcement”means using the human being’s thinking and judgment, deciding the fundamental question and principle of engineering structural reinforcement in macrocosm. It expounds the whole prestressing reinforcement technology owing to the direction of conception reinforcement thought, and introduces the prospect of engineering application.
文摘The breakthrough of key core technology is a theoretical and practical strategic issue to realize the rise of the country.This paper analyzes the concept of key core technology and its breakthrough and analyzes its characteristics.Based on the perspective of participants,this paper summarizes the influencing factors of key core technology breakthroughs in enterprises:internal and external enterprises,universities and scientific research institutions,and government.This paper expands the relevant research on key core technology breakthroughs and provides inspiration for enterprises to carry out key core technology research and breakthrough practices.
文摘Well integrity technology can effectively ensure the safety of the entire life cycle of oil and gas wells. With the exploration and development of more and more high-temperature, high-pressure, high-yield and deep wells, and the constantly increasing requirements for safety and environmental protection in various countries, well integrity technology has become a research hot spot in the oil industry. Based on the analysis of the four basic concepts of well integrity: full life cycle, well integrity management system, well barrier, and risk assessment, this article conducts a comparative analysis of the development history of well integrity technologies at home and abroad, and systematically summarizes foreign wells. The current status of integrity technology, based on the above investigation and analysis, puts forward suggestions for the next development direction of well integrity technology, which has certain guiding significance for the development of the integrity of the next step.
文摘At present, the rapid development of social economy, the security problem in peoples attention is increasing. Under the background of the grand security concept, the policy form is constantly changing, and the social demand for talents is constantly increasing. In order to study the setting of safety technology and management major, in higher vocational colleges, the establishment of this major should be established. Analyze the construction of professional courses in the professional construction of colleges and universities, follow the principles of industry ability optimization, core ability training and basic ability forging, and deeply integrate the teaching materials and the theoretical curriculum system, which is reflected in the ideological and political education of safety courses. Practice ideal based on theory, strengthen the construction of comprehensive training room, strengthen the construction of drones and VR professional professional safety innovative training room, constantly meet the demand of educational fusion, strengthen university-enterprise cooperation, create social service public practice course, to improve vocational colleges professional quality, lay higher vocational security professionals training basis, for the safety technology and management talents pave the way of practice and development in the enterprise.
文摘高等院校作为国家科技人才孵化及汇集的重要场所,肩负着为国育人、为党育才的使命。运用科学、技术与社会(Science,Technology and Society)跨学科的教学和实践活动探索地方应用型高校培养创新科技人才的新途径,能使学生在理解科学和技术的基础上更好地应对社会问题和挑战。在STS教育理念下,可以通过以下措施进一步探索和实践科技创新人才培养路径:优化专业结构,完善专业动态调整机制,提高专业办学与经济社会发展的契合度;完善“平台+模块”的课程建设架构,创新实践教学体系;建立协同育人机制,加强师资队伍建设;深化拔尖人才培养模式改革,完善教学评价制度。
文摘Aims and scope Being an international journal,China Ocean Engineering (COE) takes its prime function as the integration of new research concepts,equipment,technology,materials and structures and other scientific advances within the field of estuarial,coastal,offshore,and deepwater engineering with particular reference to developments.
