World Population Day,observed annually on July 11,focuses global attention on the intricate connections between population trends and sustainable development.Established by the United Nations Development Programme in ...World Population Day,observed annually on July 11,focuses global attention on the intricate connections between population trends and sustainable development.Established by the United Nations Development Programme in 1989 and formally recognized by the UN General Assembly,its inaugural observance on July 11,1990,spanned over 90 countries(1–2).This observance fosters dialogue on critical population issues,ranging from reproductive health and gender equality to the environmental sustainability.展开更多
Technology development has always been one of the forces driving breakthroughs in biomedical research. Since the time of Thomas Morgan, Drosophilists have, step by step, developed powerful genetic tools for manipulati...Technology development has always been one of the forces driving breakthroughs in biomedical research. Since the time of Thomas Morgan, Drosophilists have, step by step, developed powerful genetic tools for manipulating and functionally dissecting the Drosophila genome, but room for improving these technologies and developing new techniques is still large, especially today as biologists start to study systematically the functional genomics of different model organisms, including humans, in a high-throughput manner. Here, we report, for the first time in Drosophila, a rapid, easy, and highly specific method for modifying the Drosophila genome at a very high efficiency by means of an improved transcription activator-like effector nuclease （TALEN） strategy. We took advantage of the very recently developed ＂unit assembly＂ strategy to assemble two pairs of specific TALENs designed to modify the yellow gene （on the sex chromosome） and a novel autosomal gene. The mRNAs of TALENs were subsequently injected into Drosophila embryos. From 31.2% of the injected Fo fertile flies, we detected inheritable modification involving the yellow gene. The entire process from construction of specific TALENs to detection of inheritable modifications can be accomplished within one month. The potential applications of this TALEN-mediated genome modification method in Drosophila are discussed.展开更多
On June 7,2024,the 78th Session of the United Nations General Assembly adopted a China-proposed resolution to designate June 10 as the Inter national Day for Dialogue Among Civilizations.The event's first edition ...On June 7,2024,the 78th Session of the United Nations General Assembly adopted a China-proposed resolution to designate June 10 as the Inter national Day for Dialogue Among Civilizations.The event's first edition was celebrated worldwide on June 10 this year.展开更多
In an interview with Beijing Review reporters Tao Xing and Peng Jiawei in March,Vuk Jeremic,President of the 67th Session of the United Nations General Assembly and President of the Center for International Relations ...In an interview with Beijing Review reporters Tao Xing and Peng Jiawei in March,Vuk Jeremic,President of the 67th Session of the United Nations General Assembly and President of the Center for International Relations and Sustainable Development(CIRSD),a global public policy think tank based in Belgrade,Serbia,shared his views on the development of the UN over the past 80 years,the current global situation,as well as future prospects.Edited excerpts from their conversation follow。展开更多
On September 23,Chinese Premier Li Qiang made a landmark an-nouncement at a high-level meeting on the Global Development Initiative(GDI)on the sidelines of the general debate of the 80th Session of the United Nations ...On September 23,Chinese Premier Li Qiang made a landmark an-nouncement at a high-level meeting on the Global Development Initiative(GDI)on the sidelines of the general debate of the 80th Session of the United Nations General Assembly:China will not seek new special and differential treatment(SDT)in current or future World Trade Organization(WTO)negotiations.展开更多
An inverter type power source system for robot arc welding is considered. The power source includes several isolated gate bipolar transistor (IGBT) inverter power units. The output current of every individual power un...An inverter type power source system for robot arc welding is considered. The power source includes several isolated gate bipolar transistor (IGBT) inverter power units. The output current of every individual power unit is regulated by an identical single chip microcomputer to enable the whole power source system to work over a wide range of continuous output current with good dynamic properties. This inverter type power source satisfies robotic welding requirements.展开更多
文摘World Population Day,observed annually on July 11,focuses global attention on the intricate connections between population trends and sustainable development.Established by the United Nations Development Programme in 1989 and formally recognized by the UN General Assembly,its inaugural observance on July 11,1990,spanned over 90 countries(1–2).This observance fosters dialogue on critical population issues,ranging from reproductive health and gender equality to the environmental sustainability.
基金supported by the grants from the 973 Program(Nos.2009CB918702 and 2012CB945101)the NSFC(Nos.31071087 and 31100889)+1 种基金W.-M.D.is supported by NIH grant R01GM072562National Science Foundation of USA(IOS-1052333)
文摘Technology development has always been one of the forces driving breakthroughs in biomedical research. Since the time of Thomas Morgan, Drosophilists have, step by step, developed powerful genetic tools for manipulating and functionally dissecting the Drosophila genome, but room for improving these technologies and developing new techniques is still large, especially today as biologists start to study systematically the functional genomics of different model organisms, including humans, in a high-throughput manner. Here, we report, for the first time in Drosophila, a rapid, easy, and highly specific method for modifying the Drosophila genome at a very high efficiency by means of an improved transcription activator-like effector nuclease （TALEN） strategy. We took advantage of the very recently developed ＂unit assembly＂ strategy to assemble two pairs of specific TALENs designed to modify the yellow gene （on the sex chromosome） and a novel autosomal gene. The mRNAs of TALENs were subsequently injected into Drosophila embryos. From 31.2% of the injected Fo fertile flies, we detected inheritable modification involving the yellow gene. The entire process from construction of specific TALENs to detection of inheritable modifications can be accomplished within one month. The potential applications of this TALEN-mediated genome modification method in Drosophila are discussed.
文摘On June 7,2024,the 78th Session of the United Nations General Assembly adopted a China-proposed resolution to designate June 10 as the Inter national Day for Dialogue Among Civilizations.The event's first edition was celebrated worldwide on June 10 this year.
文摘In an interview with Beijing Review reporters Tao Xing and Peng Jiawei in March,Vuk Jeremic,President of the 67th Session of the United Nations General Assembly and President of the Center for International Relations and Sustainable Development(CIRSD),a global public policy think tank based in Belgrade,Serbia,shared his views on the development of the UN over the past 80 years,the current global situation,as well as future prospects.Edited excerpts from their conversation follow。
文摘On September 23,Chinese Premier Li Qiang made a landmark an-nouncement at a high-level meeting on the Global Development Initiative(GDI)on the sidelines of the general debate of the 80th Session of the United Nations General Assembly:China will not seek new special and differential treatment(SDT)in current or future World Trade Organization(WTO)negotiations.
文摘An inverter type power source system for robot arc welding is considered. The power source includes several isolated gate bipolar transistor (IGBT) inverter power units. The output current of every individual power unit is regulated by an identical single chip microcomputer to enable the whole power source system to work over a wide range of continuous output current with good dynamic properties. This inverter type power source satisfies robotic welding requirements.
