The high labor demand during rice seedling cultivation and transplantation poses a significant challenge in advancing machine-transplanted rice cultivation.This problem may be solved by increasing the seeding rate dur...The high labor demand during rice seedling cultivation and transplantation poses a significant challenge in advancing machine-transplanted rice cultivation.This problem may be solved by increasing the seeding rate during seedling production while reducing the number of seedling trays.This study conducted field experiments from 2021 to 2022,using transplanting seedling ages of 10 and 15 days to explore the effects of 250,300,and 350 g/tray on the seedling quality,mechanical transplantation quality,yields,and economic benefits of rice.The commonly used combination of 150 g/tray with a 20-day seedling age in rice production was used as CK.The cultivation of seedlings under a high seeding rate and short seedling age significantly affected seedling characteristics,but there was no significant difference in seedling vitality compared to CK.The minimum number of rice trays used in the experiment was observed in the treatment of 350-10(300 g/tray and 10-day seedling age),only 152-155 trays ha^(-1),resulting in a 62%reduction in the number of trays needed.By increasing the seeding rate of rice,missed holes during mechanical transplantation decreased by 2.8 to 4%.The treatment of 300-15(300 g/tray and 15-day seedling age)achieved the highest yields and economic gains.These results indicated that using crop straw boards can reduce the application of seedling trays.On that basis,rice yields can be increased by raising the seeding rate and shortening the seedling age of rice without compromising seedling quality.展开更多
目的:探讨晚期糖基化终末产物受体(RAGE)是否能促进子宫内膜癌裸鼠皮下移植瘤的生长。方法:利用腺病毒介导的RNAi干扰技术下调HEC-1A细胞中RAGE的表达,将干扰前后的HEC-1A细胞接种到裸鼠皮下构建移植瘤模型,观察RAGE对裸鼠皮下移植的子...目的:探讨晚期糖基化终末产物受体(RAGE)是否能促进子宫内膜癌裸鼠皮下移植瘤的生长。方法:利用腺病毒介导的RNAi干扰技术下调HEC-1A细胞中RAGE的表达,将干扰前后的HEC-1A细胞接种到裸鼠皮下构建移植瘤模型,观察RAGE对裸鼠皮下移植的子宫内膜癌细胞生长的影响。结果:RAGE sh RNAi腺病毒干扰的HEC-1A细胞不再表达RAGE蛋白,干扰后的HEC-1A细胞形成的移植瘤体积及质量显著小于干扰前细胞形成的肿瘤(P<0.01)。结论:RAGE促进子宫内膜癌裸鼠皮下移植瘤的生长。展开更多
Hepatocellular carcinoma(HCC) is an aggressive tumor that often occurs in the setting of chronic liver disease.Many patients do not initially manifest any symptoms of HCC and present late when cure with surgical resec...Hepatocellular carcinoma(HCC) is an aggressive tumor that often occurs in the setting of chronic liver disease.Many patients do not initially manifest any symptoms of HCC and present late when cure with surgical resection or transplantation is no longer possible.For this reason,patients at high risk for developing HCC are subjected to frequent screening processes.The surgical management of HCC is complex and requires an inter-disciplinary approach.Hepatic resection is the treatment of choice for HCC in patients without cirrhosis and is indicated in some patients with early cirrhosis(Child-Pugh A).Liver transplantation has emerged in the past decade as the standard of care for patients with cirrhosis and HCC meeting Milan criteria and in select patients with HCC beyond Milan criteria.Loco-regional therapy with transarterial chemoembolization,transarterial embolization,radiofrequency ablation and other similar local treatments can be used as neo-adjuvant therapy to downstage HCC to within Milan criteria or as a bridge to transplantation in patients on transplant wait list.展开更多
基金funded by the Jiangsu Key Research Program,China(BE2022338)the Jiangsu Agricultural Science and Technology Innovation Fund,China(CX(23)3107)+3 种基金the Natural Science Foundation of the Jiangsu Higher Education Institutions,China(22KJB210004)the Jiangsu Province Agricultural Major Technology Collaborative Promotion Project,China(2022-ZYXT-04-1)the Postgraduate Research&Practice Innovation Program of Jiangsu Province,China(KYCX23_3569)the Priority Academic Program Development of Jiangsu Higher Education Institutions,China.
文摘The high labor demand during rice seedling cultivation and transplantation poses a significant challenge in advancing machine-transplanted rice cultivation.This problem may be solved by increasing the seeding rate during seedling production while reducing the number of seedling trays.This study conducted field experiments from 2021 to 2022,using transplanting seedling ages of 10 and 15 days to explore the effects of 250,300,and 350 g/tray on the seedling quality,mechanical transplantation quality,yields,and economic benefits of rice.The commonly used combination of 150 g/tray with a 20-day seedling age in rice production was used as CK.The cultivation of seedlings under a high seeding rate and short seedling age significantly affected seedling characteristics,but there was no significant difference in seedling vitality compared to CK.The minimum number of rice trays used in the experiment was observed in the treatment of 350-10(300 g/tray and 10-day seedling age),only 152-155 trays ha^(-1),resulting in a 62%reduction in the number of trays needed.By increasing the seeding rate of rice,missed holes during mechanical transplantation decreased by 2.8 to 4%.The treatment of 300-15(300 g/tray and 15-day seedling age)achieved the highest yields and economic gains.These results indicated that using crop straw boards can reduce the application of seedling trays.On that basis,rice yields can be increased by raising the seeding rate and shortening the seedling age of rice without compromising seedling quality.
文摘目的:探讨晚期糖基化终末产物受体(RAGE)是否能促进子宫内膜癌裸鼠皮下移植瘤的生长。方法:利用腺病毒介导的RNAi干扰技术下调HEC-1A细胞中RAGE的表达,将干扰前后的HEC-1A细胞接种到裸鼠皮下构建移植瘤模型,观察RAGE对裸鼠皮下移植的子宫内膜癌细胞生长的影响。结果:RAGE sh RNAi腺病毒干扰的HEC-1A细胞不再表达RAGE蛋白,干扰后的HEC-1A细胞形成的移植瘤体积及质量显著小于干扰前细胞形成的肿瘤(P<0.01)。结论:RAGE促进子宫内膜癌裸鼠皮下移植瘤的生长。
文摘Hepatocellular carcinoma(HCC) is an aggressive tumor that often occurs in the setting of chronic liver disease.Many patients do not initially manifest any symptoms of HCC and present late when cure with surgical resection or transplantation is no longer possible.For this reason,patients at high risk for developing HCC are subjected to frequent screening processes.The surgical management of HCC is complex and requires an inter-disciplinary approach.Hepatic resection is the treatment of choice for HCC in patients without cirrhosis and is indicated in some patients with early cirrhosis(Child-Pugh A).Liver transplantation has emerged in the past decade as the standard of care for patients with cirrhosis and HCC meeting Milan criteria and in select patients with HCC beyond Milan criteria.Loco-regional therapy with transarterial chemoembolization,transarterial embolization,radiofrequency ablation and other similar local treatments can be used as neo-adjuvant therapy to downstage HCC to within Milan criteria or as a bridge to transplantation in patients on transplant wait list.
