This paper propos-nology in terms of the characters of agricultural decision support, and designs a model of DSS about production and sales of agricultural products. The model adopts decentralized+ centralized distrib...This paper propos-nology in terms of the characters of agricultural decision support, and designs a model of DSS about production and sales of agricultural products. The model adopts decentralized+ centralized distributed network topology. In the distributed network, each node is a DSS.Every DSS is made up of multiple agents, which can enhance the interactivity and intel-lectuality among DSS. In the multi-agent system, we embed ontology in the agent system,which has the following advantages: enhancing the coordination and communication between agents, and strengthening the semantics of information and improving knowledge share and reuse.展开更多
Dear Editors,The term“developmental disconnection syndromes”(DDSs)was first coined by Geshwind and Levitt in 2007[1]to describe the weakening of already formed connections or an absence of certain connections to est...Dear Editors,The term“developmental disconnection syndromes”(DDSs)was first coined by Geshwind and Levitt in 2007[1]to describe the weakening of already formed connections or an absence of certain connections to establish correct organization de novo in early developmental stages.DDSs include a number of neuropsychiatric diseases,such as autistic spectrum disorder(ASD)[1,2],which is characterized by impaired social communication and repetitive and stereotyped behaviors.Nevertheless,the exact etiology underlying these“disconnections”and their abnormal developmental trajectory remains largely unclear.Even less known is whether developmental disconnections relevant to autism can be rescued by early intervention thereby preventing neuropsychiatric and repetitive symptoms in later stages.This study addresses these important questions.展开更多
目的:应用连续动态的药物溶出仿生系统(drug dissolution si mulating system,DDSS)研究黄芩苷原料药及其普通片、缓释片、固体脂质纳米粒冻干粉等三种固体制剂的体外释放特性,为药物剂型设计研究提供新技术和新方法。方法:分别采用连...目的:应用连续动态的药物溶出仿生系统(drug dissolution si mulating system,DDSS)研究黄芩苷原料药及其普通片、缓释片、固体脂质纳米粒冻干粉等三种固体制剂的体外释放特性,为药物剂型设计研究提供新技术和新方法。方法:分别采用连续动态的DDSS和桨法体外释放度实验,对黄芩苷三种不同固体制剂进行体外释放度研究。以高效液相色谱法测定含量,用SPSS软件对数据进行模型拟合,从拟合方程中提取T50、Td、m等溶出参数,并对两种溶出系统的释药规律进行相关性评价。结果:黄芩苷普通片及其缓释片在两种溶出系统中释放特性分别都符合Weibull、Higuchi方程。分别对黄芩苷普通片及其缓释片在两种溶出系统中释放结果进行相关性评价,相关水平r值各为0.975、0.9995,均大于临界值(r4,0.01=0.917),即相关性良好。黄芩苷原料药和固体脂质纳米粒冻干粉在连续动态DDSS的释放特性均符合Weibull方程。结论:该DDSS模拟了一个连续动态的、更接近人体消化道环境的释药过程,其体外溶出度研究结果与《中华人民共和国药典》(2005年版二部)溶出度测定法(桨法)的良好相关性表明该DDSS作为评价药物固体制剂释药特性研究的合理性,为药物剂型设计研究提供了新的技术平台。展开更多
文摘This paper propos-nology in terms of the characters of agricultural decision support, and designs a model of DSS about production and sales of agricultural products. The model adopts decentralized+ centralized distributed network topology. In the distributed network, each node is a DSS.Every DSS is made up of multiple agents, which can enhance the interactivity and intel-lectuality among DSS. In the multi-agent system, we embed ontology in the agent system,which has the following advantages: enhancing the coordination and communication between agents, and strengthening the semantics of information and improving knowledge share and reuse.
基金support JCS,QX,and BQ,as well as covering all experimental and material costs for this project,NIH/NIMH R01 MH094360-06(HWD)grant to support HX,MZ,Lei Gao,Lin Gou,HH and HWD.
文摘Dear Editors,The term“developmental disconnection syndromes”(DDSs)was first coined by Geshwind and Levitt in 2007[1]to describe the weakening of already formed connections or an absence of certain connections to establish correct organization de novo in early developmental stages.DDSs include a number of neuropsychiatric diseases,such as autistic spectrum disorder(ASD)[1,2],which is characterized by impaired social communication and repetitive and stereotyped behaviors.Nevertheless,the exact etiology underlying these“disconnections”and their abnormal developmental trajectory remains largely unclear.Even less known is whether developmental disconnections relevant to autism can be rescued by early intervention thereby preventing neuropsychiatric and repetitive symptoms in later stages.This study addresses these important questions.
文摘目的:应用连续动态的药物溶出仿生系统(drug dissolution si mulating system,DDSS)研究黄芩苷原料药及其普通片、缓释片、固体脂质纳米粒冻干粉等三种固体制剂的体外释放特性,为药物剂型设计研究提供新技术和新方法。方法:分别采用连续动态的DDSS和桨法体外释放度实验,对黄芩苷三种不同固体制剂进行体外释放度研究。以高效液相色谱法测定含量,用SPSS软件对数据进行模型拟合,从拟合方程中提取T50、Td、m等溶出参数,并对两种溶出系统的释药规律进行相关性评价。结果:黄芩苷普通片及其缓释片在两种溶出系统中释放特性分别都符合Weibull、Higuchi方程。分别对黄芩苷普通片及其缓释片在两种溶出系统中释放结果进行相关性评价,相关水平r值各为0.975、0.9995,均大于临界值(r4,0.01=0.917),即相关性良好。黄芩苷原料药和固体脂质纳米粒冻干粉在连续动态DDSS的释放特性均符合Weibull方程。结论:该DDSS模拟了一个连续动态的、更接近人体消化道环境的释药过程,其体外溶出度研究结果与《中华人民共和国药典》(2005年版二部)溶出度测定法(桨法)的良好相关性表明该DDSS作为评价药物固体制剂释药特性研究的合理性,为药物剂型设计研究提供了新的技术平台。
