阶级分层：对当代中国社会分层的另一种解读——基于学理层面思考的中国阶级分层

卡尔·马克思的社会阶级理论仍然适合分析当代中国的社会分层。按照马克斯·韦伯的关于阶级和阶层是一个历史过程的观点，中国开始出现阶级现象；并尝试运用稀缺性生产要素占有关系解读当下的中国阶级状况及其相互关系；认为阶级分化或冲突并不必然会导致阶级对抗，阶级合作是现代社会的一个理性选择。     

Inferences on the Number of Unseen Species and the Number of Abundant/Rare Species

This paper focuses on estimating the number of species and the number of abundant species in a specific geographic region and, consequently, draw inferences on the number of rare species. The word 'species' is generic referring to any objects in a population that can be categorized. In the areas of biology, ecology, literature, etc, the species frequency distributions are usually severely skewed, in which case the population contains a few very abundant species and many rare ones. To model a such situation, we develop an asymmetric multinomial-Dirichlet probability model using species frequency data. Posterior distributions on the number of species and the number of abundant species are obtained and posterior inferences are induced using MCMC simulations. Simulations are used to demonstrate and evaluate the developed methodology. We apply the method to a DNA segment data set and a butterfly data set. Comparisons among different approaches to inferring the number of species are also discussed in this paper.     

"312经络锻炼法"对中老年冠心病疗效和相关机理的研究

目的探讨“312经络锻炼法”对冠心病的疗效和相关作用机理。方法30例冠心病学员患者坚持“312经络锻炼法”(简称“312”),自身对照。于312前、及后1个月、6个月、1年,定期追踪其症状、血压、心电图、血脂、血糖等指标的变化,观察比较,分析总结。结果①心电图冠心病学员患者心电图各导联指标,于312锻炼后1个月、6个月、1年与312前比效大多有所好转。1年后、67%(8/12例)恢复正常或有好转;②临床疗效症状、体征、血压、血脂、血糖等亦各相应地好转。312后1个月、6个月、1年后显效率各分别为10%,13%,27%,总有效率93%,90%,90%。结论①312能有效地防治冠心病,长期坚持312对各种类型的冠心病及其并发症均具有显著疗效。②312的特点自治、全治、根治。312验证了“NPC实验”[15],证实了中医经络学理论的科学性、真实性、伟大性。③“312”简便、有效、无毒副作用,经济实惠,符合目前国情,尤适合在农村推广普及。     

Mad Cows and Sick Birds: Financing International Responses to Animal Disease in Developing Countries

Because many animal diseases have strong transboundary attributes, their control can be reasonably characterised as an international public good. The potential for reservoirs of transboundary diseases to persist in developing countries that lack the capacity or incentives to control them implies a need for international financial transfers to fund control. However, the costs of control can be large compared with development assistance budgets, and the benefits small compared with the global benefits of control and the local benefits of other priority investments. This article outlines a framework for setting priorities for international development assistance for animal disease control based on the incidence of market and non‐market impacts and the context in which outbreaks take place in endemic and susceptible countries.     

稀土对Ni-Cr-Cu合金铸铁组织及耐碱腐蚀性能的影响

设计了含不同量的稀土镍-铬-铜合金铸铁,采用光学显微镜观察组织,用失重法测定合金铸铁在静态、室温、高浓度碱液中的腐蚀速率.结果表明:添加稀土可以改善合金铸铁中石墨的形态及分布,使之由长条形逐渐球化,从而增强合金铸铁的耐蚀性.但稀土过量会使得合金铸铁的耐蚀性减弱.     

用猪血、羽毛制取混合氨基酸稀土配合物

用猪血和鸡毛为原料，分别采用硫酸酸解和盐酸酸解两种工艺，获得混合氨基酸．与混合轻稀土化合物反应制得混合氨基酸稀土配合物．测定了配合物的化学组成，完成了成品的氨基酸含量和Ｘ－射线衍射分析．     

啤酒酵母水解提取混合氨基酸及稀土氨基酸配合物的制备

用酸解法（盐酸和硫酸）在有回流装置的反应器置恒温甘油浴装置的条件下水解啤画酵母．制取混合氨基酸．与稀土化合物反应后．得到稀土氨基酸配合物．盐酸酸解法的特点是向水解液中加入稀土氧化物，中和大部分酸并用赶酸法除去余酸．硫酸酸解法的特点是直接用石灰乳中和水解液中的酸．     

一种新型重油掺水乳化剂的研制

本文研制出一种新型重油掺水乳化剂，其特点是原料易得、合成路线简单、乳化性能好。实验发现，采用稀土化合物作为合成反应的催化剂可大大缩短反应时间，重油掺水量为２０％时，乳化剂用量为 ０．１５％。乳化剂的主要性能超过国内同类产品。     

碘及稀土催渗涂料碳氮共渗的研究

本文论述了碘及稀土催渗涂料碳氮共渗的处理工艺;试验了碘及稀土在涂料碳氮共渗中的催渗作用;研究了催渗剂量、共渗温度和保温时间对共渗层深度的影响,并试验了加催渗剂后,试样的冲击韧性。试验结果表明,此工艺具有渗速快,硬度高,冲击韧性显著提高的特点。     

佛山大学教职工的健康调查

本文从佛山大学教职工的健康调查,讨论了我校中老年教职工多发病的原因与预防.