Microscopic observations of a compatible host/pathogen interaction between a potential biocontrol agent (Uromyces pencanus) and its target weed (Nassella neesiana)

Uromyces pencanus is a prospective biocontrol agent for Nassella neesiana in Australia and New Zealand. The infection process of U. pencanus urediniospores in leaves of its susceptible host N. neesiana was found to be similar to that of most other rust species. A pattern against which to compare nonhost reactions in host range experiments was achieved using a modification of Bruzzese and Hasan’s whole leaf clearing and staining technique. The staining of microtome leaf sections provided supplemental information about this pathosystem.     

麻杏石甘汤加减治疗慢性阻塞性肺疾病急性发作临床观察

目的：观察麻杏石甘汤加减治疗慢性阻塞性肺疾病急性发作（AECOPD）的疗效。方法：将212例AECOPD患者按随机数字表法分为对照组和治疗组各106例,对照组给予西医常规治疗方案,治疗组在对照组基础上联合应用麻杏石甘汤加减治疗,1个疗程（14 d）后对比疗效及中医症候评分、肺通气功能等相关指标。结果：治疗组临床控制率40．57％优于对照组的24．53,治疗组治疗后咳嗽、痰量、喘息、气短等中医症候评分均低于对照组,FEV1％预计值、FEV1／FVC等肺通气功能指标治疗前后差值均高于对照组,差异均有统计学意义（P＜0．05）。结论：麻杏石甘汤加减治疗AECOPD可清热化痰、解毒祛瘀,促进临床症状缓解,改善肺通气功能,提高疗效。     

珍珠粉,珍珠层粉药用价值的比较

经研究表明:淡水珍珠层粉镇静作用强,抗胃溃疡作用较好。淡水珍珠粉抗皮肤溃疡作用强,海水珍珠层粉明目作用较强。     

Geospatially structured biodiversity information as a component of a regional biodiversity clearing house

To function effectively, the international biodiversity Clearing HouseMechanism (CHM), based on the Convention on Biological Diversity (CBD), needs tobe rooted at the regional and local levels. This article presents an example ofhow stakeholders of regional data and information can be encouraged to formnetworks linked to national biodiversity focal points (NFPs). We pay specialattention to exploiting the geospatial properties of biodiversity data andinformation, and demonstrate how data and information can best be filtered,classified and labelled to facilitate geographically based information retrievalon the Internet. The geocodability of bibliographic reports proved to be poor,indicating an urgent need to reconsider the geographical properties ofbiodiversity information under production. Also, it is useful to utilisenetworking processes with information from fields other than biodiversity wheninitiating the network. Finally, we present and discuss problems of integrityand interoperability of data, and also the process of biodiversity informationproduction from the point of view of general information theory and innovationsoffered by modern information technology.