Liposomes have several advantages over viral vectorsfor gene delivery both in vitro and in vivo. However,few data are available concerning gene transfer intohematopoietic stem cells. In order to explore theefficiency ...Liposomes have several advantages over viral vectorsfor gene delivery both in vitro and in vivo. However,few data are available concerning gene transfer intohematopoietic stem cells. In order to explore theefficiency and the stability of expression of gene transferinto hematopoietic stem cells, we have transduced twomarker genes (Neo^R and Lac Z) co-transfer into humanbone marrow CD34^+ hematopoietic stem cells展开更多
Longiing tea is a famous traditional green tea in China.on the manufacturing process,the tan-fang process is an important treatment to make thecharacteristic aroma of longjing tea.In this paper,the tan-fang effect on ...Longiing tea is a famous traditional green tea in China.on the manufacturing process,the tan-fang process is an important treatment to make thecharacteristic aroma of longjing tea.In this paper,the tan-fang effect on the production of aroma has been investigated bycomparing each aroma pattern among longjing tea made by different tan-fang treatments,antthe specific role of the tan-fang process is discussed.展开更多
In the present study, human IL-2 gene wastransferred into human erythroleukemic cell line K562 bythe retroviral vector LYCN. The effects on theproliferative activity of the IL-2-gene-modified K562 cells（K562/IL2） we...In the present study, human IL-2 gene wastransferred into human erythroleukemic cell line K562 bythe retroviral vector LYCN. The effects on theproliferative activity of the IL-2-gene-modified K562 cells（K562/IL2） were studied. 18 Days after transduction,flow cytometry analysis indicated that （K562/IL2）accumulated at phase G<sub>2</sub>. By day 30, the portion ofK562/IL2 was low at G<sub>0</sub>/G<sub>1</sub>, but still high at G<sub>2</sub>.展开更多
African National Congress leader Nelson Mandela said the new South Africa will definitely recognize the People’s Requblic of China as the sole representative of the whole Chinese nation. Mandela made the remarks in a...African National Congress leader Nelson Mandela said the new South Africa will definitely recognize the People’s Requblic of China as the sole representative of the whole Chinese nation. Mandela made the remarks in an open statement conveyed by Joe Slovo, national chairman of the South African Communist Party, in Beijing on August 17.展开更多
Dr.John Yu and members of ICGI:Ladies and gentlemen:Good morning! As the exciting Beijing Olympics is approaching,it gives me great pleasure to host all of you from different parts of the world in Anyang,to participat...Dr.John Yu and members of ICGI:Ladies and gentlemen:Good morning! As the exciting Beijing Olympics is approaching,it gives me great pleasure to host all of you from different parts of the world in Anyang,to participate in the 2008 International Cotton Genome Initiative(ICGI) Research Conference.On behalf of China ICGI Organizing Committee and China Cotton Research Institute(CCRI) in Anyang I enthusiastically welcome all of you to this conference.展开更多
Thanks go to our hosts,the organizers,sponsors,and all participants who have put in great efforts to making the 2008 Research Conference of the International Cotton Genome Initiative(ICGI,
[Poly(styryl)bipyridine]palladium(O),a polymer-bound hydrogrnation catalyst,was characterized by DRS,ESCA and electron microscopy.This material was used as cata-lyst for the vinylation of ary liodides.It was found tha...[Poly(styryl)bipyridine]palladium(O),a polymer-bound hydrogrnation catalyst,was characterized by DRS,ESCA and electron microscopy.This material was used as cata-lyst for the vinylation of ary liodides.It was found that the catalytic activlty is comparableto that of the homogeneous catalyst and is not remarkably lowered on being used threetimes With this catalyst,a series of substituted stilbenes,cinnamic acids and methylcinnamates was prepared in high yields.展开更多
Spin trapping technique was employed to study the mechanism of photocatalyticdehydrogenation of alcohol during in situ irradiation of Rh<sub>2</sub>O<sub>3</sub>/CdS powder which is sus-pended ...Spin trapping technique was employed to study the mechanism of photocatalyticdehydrogenation of alcohol during in situ irradiation of Rh<sub>2</sub>O<sub>3</sub>/CdS powder which is sus-pended in aqueous aicohol solution.Evidence for production of ·OH radical is presentedand the rate of·OH radical formation corresponds to the rate of H<sub>2</sub> evolution.On the ba-sis of the above results,it is suggested that water cleavage is an intermediate step in this reac-tion.展开更多
文摘Liposomes have several advantages over viral vectorsfor gene delivery both in vitro and in vivo. However,few data are available concerning gene transfer intohematopoietic stem cells. In order to explore theefficiency and the stability of expression of gene transferinto hematopoietic stem cells, we have transduced twomarker genes (Neo^R and Lac Z) co-transfer into humanbone marrow CD34^+ hematopoietic stem cells
文摘Longiing tea is a famous traditional green tea in China.on the manufacturing process,the tan-fang process is an important treatment to make thecharacteristic aroma of longjing tea.In this paper,the tan-fang effect on the production of aroma has been investigated bycomparing each aroma pattern among longjing tea made by different tan-fang treatments,antthe specific role of the tan-fang process is discussed.
文摘In the present study, human IL-2 gene wastransferred into human erythroleukemic cell line K562 bythe retroviral vector LYCN. The effects on theproliferative activity of the IL-2-gene-modified K562 cells（K562/IL2） were studied. 18 Days after transduction,flow cytometry analysis indicated that （K562/IL2）accumulated at phase G<sub>2</sub>. By day 30, the portion ofK562/IL2 was low at G<sub>0</sub>/G<sub>1</sub>, but still high at G<sub>2</sub>.
文摘African National Congress leader Nelson Mandela said the new South Africa will definitely recognize the People’s Requblic of China as the sole representative of the whole Chinese nation. Mandela made the remarks in an open statement conveyed by Joe Slovo, national chairman of the South African Communist Party, in Beijing on August 17.
文摘Dr.John Yu and members of ICGI:Ladies and gentlemen:Good morning! As the exciting Beijing Olympics is approaching,it gives me great pleasure to host all of you from different parts of the world in Anyang,to participate in the 2008 International Cotton Genome Initiative(ICGI) Research Conference.On behalf of China ICGI Organizing Committee and China Cotton Research Institute(CCRI) in Anyang I enthusiastically welcome all of you to this conference.
文摘Thanks go to our hosts,the organizers,sponsors,and all participants who have put in great efforts to making the 2008 Research Conference of the International Cotton Genome Initiative(ICGI,
文摘[Poly(styryl)bipyridine]palladium(O),a polymer-bound hydrogrnation catalyst,was characterized by DRS,ESCA and electron microscopy.This material was used as cata-lyst for the vinylation of ary liodides.It was found that the catalytic activlty is comparableto that of the homogeneous catalyst and is not remarkably lowered on being used threetimes With this catalyst,a series of substituted stilbenes,cinnamic acids and methylcinnamates was prepared in high yields.
文摘Spin trapping technique was employed to study the mechanism of photocatalyticdehydrogenation of alcohol during in situ irradiation of Rh<sub>2</sub>O<sub>3</sub>/CdS powder which is sus-pended in aqueous aicohol solution.Evidence for production of ·OH radical is presentedand the rate of·OH radical formation corresponds to the rate of H<sub>2</sub> evolution.On the ba-sis of the above results,it is suggested that water cleavage is an intermediate step in this reac-tion.
