Using complete and orthogonal design, fertilization trials were conducted for the young growth of Populus deltoids cv. Zhonghua hongye in the fluviogenic soil in Xindu District, Chengdu City. The results showed that t...Using complete and orthogonal design, fertilization trials were conducted for the young growth of Populus deltoids cv. Zhonghua hongye in the fluviogenic soil in Xindu District, Chengdu City. The results showed that the application ef- fect of the single nutrient elements ranked as K〉N〉P, and that of the fertilization combinations ranked as N＋P＋K〉N＋K〉N＋P, P＋K. The optimum fertilization formula was urea [（NH2）2CO, 150 g/plant] ＋ calcium superphosphate [Ca（H2PO4）2.H20, 220 g/plant] ＋ potassium sulphate （K2SO4, 75 g/plant）.展开更多
This study aimed to explore the pathological change to hippocampal neurons and the expression of growth associated protein 43 in 21-day-old young rats following chronic intermittent hypoxia. Hematoxylin-eosin staining...This study aimed to explore the pathological change to hippocampal neurons and the expression of growth associated protein 43 in 21-day-old young rats following chronic intermittent hypoxia. Hematoxylin-eosin staining results showed varying degrees of degeneration and necrosis in hippocampal neurons depending on the modeling time. Immunohistochemistry revealed that growth associated protein 43 expression in young rats following chronic intermittent hypoxia decreased, but that levels were still higher than those of normal rats at each time point, especially 4 weeks after modeling. During 1 5 weeks after modeling, a slow growth in rat weight was observed. Experimental findings indicate that chronic intermittent hypoxia may induce growth dysfunction and necrosis of hippocampal neurons, as well as increase the expression of growth associated protein 43 in young rats.展开更多
生长减缓是帮助早期识别营养问题的重要临床表现,尽早识别和干预婴幼儿生长减缓对改善其近远期健康结局意义重大。之前发表的相关指南和专家共识对生长减缓缺乏统一的定义,影响临床识别、评估与规范管理。2023年3月,Journal of Pediatri...生长减缓是帮助早期识别营养问题的重要临床表现,尽早识别和干预婴幼儿生长减缓对改善其近远期健康结局意义重大。之前发表的相关指南和专家共识对生长减缓缺乏统一的定义,影响临床识别、评估与规范管理。2023年3月,Journal of Pediatric Gastroenterology and Nutrition杂志发表了《生长减缓婴幼儿的追赶生长:指导临床医师的专家建议》,不仅阐述了追赶生长的重要性,还针对如何适当地定义、评估和管理生长减缓制定了切实可行的共识建议,对临床医生具有现实的指导价值。本文结合我国临床现状,对该“建议”进行解读,以期为我国临床医师管理生长减缓婴幼儿提供指导和参考。展开更多
[Objective] The aim was to provide theoretical basis for the prevention and control of the invasion of Alternanthera philoxeroides（Mart.）Griseb.[Method] Effects of fragmentation intensity of fresh roots and their bu...[Objective] The aim was to provide theoretical basis for the prevention and control of the invasion of Alternanthera philoxeroides（Mart.）Griseb.[Method] Effects of fragmentation intensity of fresh roots and their burial depth on sprouting and early growth of A.philoxeroides were studied by control test.[Result] More sprouts of A.philoxeroides emerged when the fragmentation intensity of fresh roots was higher,while if the fragmentation intensity of fresh roots was lower,the early growth of A.philoxeroides was more rapid.The soil buried depth had significant effect on fresh root sprouts＇ emergence,but once fresh root sprouts could reach the soil surface and were given enough growth time,even if the fresh roots were buried in different depths,soil buried depth had no significant effect on its young plant growth.[Conclusion] If different fragmentation intensities of fresh roots present,there is a kind of trade-off strategy between root sprouts＇ emergence and plant＇ early growth,by which A.philoxeroides can invade new habitat successfully.To control the invasion of A.philoxeroides,it is critical to prevent its fresh root sprouts from emerging to soil surface,that is,to bury the fresh roots at a further soil depth.展开更多
基金Supported by Special Scientific Research Fund of Forestry Public Welfare Profession of China(201104026)~~
文摘Using complete and orthogonal design, fertilization trials were conducted for the young growth of Populus deltoids cv. Zhonghua hongye in the fluviogenic soil in Xindu District, Chengdu City. The results showed that the application ef- fect of the single nutrient elements ranked as K〉N〉P, and that of the fertilization combinations ranked as N＋P＋K〉N＋K〉N＋P, P＋K. The optimum fertilization formula was urea [（NH2）2CO, 150 g/plant] ＋ calcium superphosphate [Ca（H2PO4）2.H20, 220 g/plant] ＋ potassium sulphate （K2SO4, 75 g/plant）.
基金supported by a grant from Luzhou Medical College,China
文摘This study aimed to explore the pathological change to hippocampal neurons and the expression of growth associated protein 43 in 21-day-old young rats following chronic intermittent hypoxia. Hematoxylin-eosin staining results showed varying degrees of degeneration and necrosis in hippocampal neurons depending on the modeling time. Immunohistochemistry revealed that growth associated protein 43 expression in young rats following chronic intermittent hypoxia decreased, but that levels were still higher than those of normal rats at each time point, especially 4 weeks after modeling. During 1 5 weeks after modeling, a slow growth in rat weight was observed. Experimental findings indicate that chronic intermittent hypoxia may induce growth dysfunction and necrosis of hippocampal neurons, as well as increase the expression of growth associated protein 43 in young rats.
文摘生长减缓是帮助早期识别营养问题的重要临床表现,尽早识别和干预婴幼儿生长减缓对改善其近远期健康结局意义重大。之前发表的相关指南和专家共识对生长减缓缺乏统一的定义,影响临床识别、评估与规范管理。2023年3月,Journal of Pediatric Gastroenterology and Nutrition杂志发表了《生长减缓婴幼儿的追赶生长:指导临床医师的专家建议》,不仅阐述了追赶生长的重要性,还针对如何适当地定义、评估和管理生长减缓制定了切实可行的共识建议,对临床医生具有现实的指导价值。本文结合我国临床现状,对该“建议”进行解读,以期为我国临床医师管理生长减缓婴幼儿提供指导和参考。
基金Supported by Program from Hubei Education Department(Z200512002)Outstanding Youth Science and Technology Innovation Team Plan Project of Yangtze University~~
文摘[Objective] The aim was to provide theoretical basis for the prevention and control of the invasion of Alternanthera philoxeroides（Mart.）Griseb.[Method] Effects of fragmentation intensity of fresh roots and their burial depth on sprouting and early growth of A.philoxeroides were studied by control test.[Result] More sprouts of A.philoxeroides emerged when the fragmentation intensity of fresh roots was higher,while if the fragmentation intensity of fresh roots was lower,the early growth of A.philoxeroides was more rapid.The soil buried depth had significant effect on fresh root sprouts＇ emergence,but once fresh root sprouts could reach the soil surface and were given enough growth time,even if the fresh roots were buried in different depths,soil buried depth had no significant effect on its young plant growth.[Conclusion] If different fragmentation intensities of fresh roots present,there is a kind of trade-off strategy between root sprouts＇ emergence and plant＇ early growth,by which A.philoxeroides can invade new habitat successfully.To control the invasion of A.philoxeroides,it is critical to prevent its fresh root sprouts from emerging to soil surface,that is,to bury the fresh roots at a further soil depth.
