The yield potential of current rice varieties has reached a high plateau and fluc-tuated within a narrow range. Based on the theory and practice of rice breedingfor super-high-yield, we put forward a concept of "...The yield potential of current rice varieties has reached a high plateau and fluc-tuated within a narrow range. Based on the theory and practice of rice breedingfor super-high-yield, we put forward a concept of " Two high and one early",which means high biomass and high efficiency of light energy conversion, as wellas fast growing in the early growth stage. The agronomic characters of 15 U. S展开更多
Objective To analyze the effect of the numbers of transferred good-quality embryos on pregnancy outcomes in in vitro fertilization-embryo transfer （IVF-ET）, supplying a reference for selection of transferred embryos...Objective To analyze the effect of the numbers of transferred good-quality embryos on pregnancy outcomes in in vitro fertilization-embryo transfer （IVF-ET）, supplying a reference for selection of transferred embryos.Methods Five hundreds and one infertile patients who underwent IVF-ET were retrospectively analyzed. All cycles were divided into 3 groups by the number of transferred good-quality embryos （group A： two good-quality embryos, group B： one good-quality embryo, group C： no good-quality embryo）, with no significant difference in general condition such as age, infertility duration and infertility types. The pregnancy outcomes were compared and analyzed among the three groups.Results 1） Live-birth rate was improved with increasing good-quality transferred embryo numbers. Groups A （70.3%） and B （69.8%） had no significant difference （P=0. 409）, whereas it was significantly greater in groups A and B than in group C （57. 7%） （P=0.009, P=0.036）. 2） The loss of single gestational sacs rate, which have no significant difference among 3 groups （P=0.221, P=0.539, P=0.226）, reduced with increasing good-quality transferred embryos numbers. 3） Biochemical pregnancy abortion rate in groups A （10.9%） and B （10.1%） was significantly lower than that in group C （18.3%）（P=0.049, P=0.049）. 4） There was no significant difference among 3 groups in ectopic pregnancy rate （P=0.174, P=0.129, P=0.404）. 5）Multiple-birth rate was improved with increasing good-quality transferred embryos numbers, it was significantly greater in group A （31.6%） than in group C （15.0%）（P=0.020）, while groups B and A had no significant difference （P=0.489, P=0.126）.Conclusion Two good-quality transferred embryos have no significantly difference to 1 good-quality embryo in all pregnancy outcomes. In clinic treatment, we can select 1 good-quality embryo and 1 poor-quality embryo when patients only have few goodquality embryos. Meanwhile, a good-quality embryo can improve live-birth rate and multiple pregnancy rate simultaneously. In order to meet a better assisted reproductive technology （ART） outcome, we need to seek a balance between pregnancy rate and multiple pregnancy rate.展开更多
[Objectives]This study was conducted to screen rice varieties suitable for planting in Nanchang City with high quality,high yield,good yield,and strong disease and stress resistance.[Methods]Seven new late indica hybr...[Objectives]This study was conducted to screen rice varieties suitable for planting in Nanchang City with high quality,high yield,good yield,and strong disease and stress resistance.[Methods]Seven new late indica hybrid rice combinations with good quality bred in Jiangxi Province in recent years and seven new late indica hybrid rice combinations with good quality bred by Nanchang Academy of Agricultural Sciences were introduced,and compared with Tianyouhuazhan as a control.[Results]The rice quality and taste of the tested combinations were better than those of the control.Among the tested combinations,Yuliangyoufuxiangzhan,Xintaiyousizhan,Yuxiangliangyou No.8 and Guangheyou 33 had good stress resistance,high yield and good rice quality.[Conclusions]This study provides a theoretical basis for the selection and breeding of new rice varieties in Nanchang City.展开更多
The growth of the software game development industry is enormous and is gaining importance day by day. This growth imposes severe pressure and a number of issues and challenges on the game development community. Game ...The growth of the software game development industry is enormous and is gaining importance day by day. This growth imposes severe pressure and a number of issues and challenges on the game development community. Game development is a complex process, and one important game development choice is to consider the developer＇s perspective to produce good-quality software games by improving the game development process. The objective of this study is to provide a better understanding of the developer＇s dimension as a factor in software game success. It focuses mainly on an empirical investigation of the effect of key developer＇s factors on the software game development process and eventually on the quality of the resulting game. A quantitative survey was developed and conducted to identify key developer＇s factors for an enhanced game development process. For this study, the developed survey was used to test the research model and hypotheses. The results provide evidence that game development organizations must deal with multiple key factors to remain competitive and to handle high pressure in the software game industry. The main contribution of this paper is to investigate empirically the influence of key developer＇s factors on the game development process.展开更多
文摘The yield potential of current rice varieties has reached a high plateau and fluc-tuated within a narrow range. Based on the theory and practice of rice breedingfor super-high-yield, we put forward a concept of " Two high and one early",which means high biomass and high efficiency of light energy conversion, as wellas fast growing in the early growth stage. The agronomic characters of 15 U. S
文摘Objective To analyze the effect of the numbers of transferred good-quality embryos on pregnancy outcomes in in vitro fertilization-embryo transfer （IVF-ET）, supplying a reference for selection of transferred embryos.Methods Five hundreds and one infertile patients who underwent IVF-ET were retrospectively analyzed. All cycles were divided into 3 groups by the number of transferred good-quality embryos （group A： two good-quality embryos, group B： one good-quality embryo, group C： no good-quality embryo）, with no significant difference in general condition such as age, infertility duration and infertility types. The pregnancy outcomes were compared and analyzed among the three groups.Results 1） Live-birth rate was improved with increasing good-quality transferred embryo numbers. Groups A （70.3%） and B （69.8%） had no significant difference （P=0. 409）, whereas it was significantly greater in groups A and B than in group C （57. 7%） （P=0.009, P=0.036）. 2） The loss of single gestational sacs rate, which have no significant difference among 3 groups （P=0.221, P=0.539, P=0.226）, reduced with increasing good-quality transferred embryos numbers. 3） Biochemical pregnancy abortion rate in groups A （10.9%） and B （10.1%） was significantly lower than that in group C （18.3%）（P=0.049, P=0.049）. 4） There was no significant difference among 3 groups in ectopic pregnancy rate （P=0.174, P=0.129, P=0.404）. 5）Multiple-birth rate was improved with increasing good-quality transferred embryos numbers, it was significantly greater in group A （31.6%） than in group C （15.0%）（P=0.020）, while groups B and A had no significant difference （P=0.489, P=0.126）.Conclusion Two good-quality transferred embryos have no significantly difference to 1 good-quality embryo in all pregnancy outcomes. In clinic treatment, we can select 1 good-quality embryo and 1 poor-quality embryo when patients only have few goodquality embryos. Meanwhile, a good-quality embryo can improve live-birth rate and multiple pregnancy rate simultaneously. In order to meet a better assisted reproductive technology （ART） outcome, we need to seek a balance between pregnancy rate and multiple pregnancy rate.
基金Supported by Demonstration of Green and High-efficiency Cultivation Techniques for High-quality Rice(GCJ[2011]250)。
文摘[Objectives]This study was conducted to screen rice varieties suitable for planting in Nanchang City with high quality,high yield,good yield,and strong disease and stress resistance.[Methods]Seven new late indica hybrid rice combinations with good quality bred in Jiangxi Province in recent years and seven new late indica hybrid rice combinations with good quality bred by Nanchang Academy of Agricultural Sciences were introduced,and compared with Tianyouhuazhan as a control.[Results]The rice quality and taste of the tested combinations were better than those of the control.Among the tested combinations,Yuliangyoufuxiangzhan,Xintaiyousizhan,Yuxiangliangyou No.8 and Guangheyou 33 had good stress resistance,high yield and good rice quality.[Conclusions]This study provides a theoretical basis for the selection and breeding of new rice varieties in Nanchang City.
文摘The growth of the software game development industry is enormous and is gaining importance day by day. This growth imposes severe pressure and a number of issues and challenges on the game development community. Game development is a complex process, and one important game development choice is to consider the developer＇s perspective to produce good-quality software games by improving the game development process. The objective of this study is to provide a better understanding of the developer＇s dimension as a factor in software game success. It focuses mainly on an empirical investigation of the effect of key developer＇s factors on the software game development process and eventually on the quality of the resulting game. A quantitative survey was developed and conducted to identify key developer＇s factors for an enhanced game development process. For this study, the developed survey was used to test the research model and hypotheses. The results provide evidence that game development organizations must deal with multiple key factors to remain competitive and to handle high pressure in the software game industry. The main contribution of this paper is to investigate empirically the influence of key developer＇s factors on the game development process.
