中学校园环境景观设计探讨

以某中学校园环境景观设计为例，对景观设计中如何挖掘校园文化内涵，如何体现人与自然高度和谐统一，如何走可持续发展道路，如何通过艺术化、人性化空间的塑造．来创造富有时代气息的中学校园环境作了探讨。     

坚持用好作风选人加强干部队伍建设

从几方面阐述了在干部选拔中,应坚持用好的作风选作风好的人,切实推进干部制度建设.     

Sound communication inNezara viridula (L.) (Heteroptera: Pentatomidae): Further evidence that signal transmission is substrate-borne

We investigated the sound communication associated with mating inNezara viridula (L.) to clarify conflicting reports on the medium through which acoustic signals are borne. Recordings made from virgin pairs ofN. viridula during precopulatory and compulatory behaviour have revealed that signals transmitted as vibrations through the substrate are a more likely means of communication than signals transmitted by a radiation of sound pressure waves through the air (at least in Australian populations). We present evidence (additional to that already in the literature) that air-borne acoustics are an unlikely mechanism of sexual communication in this species. Specifically, the recorded pulse train patterns showed no consistency or repeatability in relation to different stages of mating behaviour. In contrast, frequency spectrograms of substrate-borne signals reveal repeatable patterns that do correspond with the stage of mating behaviour.     

Aspirin-like drugs may block pain independently of prostaglandin synthesis inhibition

Summary Using flurbiprofen, a chiral anti-inflammatory and analgesic 2-arylpropionic acid derivative, the enantiomers of which are not converted to each other (less than 5%) in rats or man, we obtained evidence that prostaglandin synthesis inhibition is primarily mediating the anti-inflammatory activity but prostaglandin synthesis independent mechanisms contribute to the analgesic effects. Thus, the S-form inhibited prostaglandin synthesis, inflammation and nociception in rats. The R-form had much less effect on prostaglandin synthesis and did not affect inflammation. It did, however, block nociception in rats almost as potently as the S-form. S-flurbiprofen, in contrast to the R-form, was clearly ulcerogenic in the gastrointestinal mucosa. These results indicate additional molecular mechanisms of analgesia and suggest the use of R-arylpropionic acids as analgesics.     

激光开槽、埋槽电极硅太阳电池

报道一种新颖的激光开槽、埋槽电极硅太阳电池的结构、工艺流程及其研制结果。在ＡＭ１．５，２５℃，１００ｍＷ／ｃｍ２的条件下，以面积为４５ｃｍ３的３６片硅片研制的硅太阳电池的输出参数的平均值为ＪＳＣ＝３６．１ｍＡ／ｃｍ２，Ｖ∞＝６３３ｍＶ，Ｆ．Ｆ．＝０．７９８，η＝１８．２３％，最后分析了种高性能硅太阳电池的设计特点。     

Purealidin A,a new cytotoxic bromotyrosine-derived alkaloid from the Okinawan marine spongePsammaplysilla purea

Summary A new bromotyrosine-derived alkaloid with antileukemic activity, purealidin A (5), has been isolated from the Okinawan marine spongePsammaplysilla purea and its chemical structure elucidated on the basis of the spectroscopic data.     

纳米SiO2作为蓄电池添加剂的研究

研究了纳米SiO2添加到铅酸蓄电池的极板和电解液中，对电池的起动性能和循环性能的影响。     

企业兼并的动机及其社会福利理论模型综述

从水平兼并和垂直兼并两个方面详细论述了企业兼并的动机及其社会福利理论模型研究发展状况 ,并对未来的研究方向提出了若干建议.     

我国股票市场的价值基础及价格泡沫研究

借助剩余收益模型测定了我国股票市场1992年至2002年历年年末的市场价值基础,并探讨了股票市场价格泡沫问题.研究结果表明,尽管上市公司的盈利能力不断下降,但市场的价值基础并未出现明显下降;由于市场的不成熟,我国股票市场中的泡沫成分较多;股价指数及市盈率指标不具有价格泡沫及投资价值的判断功能.