闲散与凝定——杨声的现代抒情

生活是一袭华美的袍，上面爬满了虱子，在每天的呼吸与游走之间，总是有些不由分说的意绪如幽灵般在你的思想深处晃荡，一种森冷的压迫感时不时偷袭一下．紧咬你的心，全身顿时一懔．便有些窘迫的仓皇了。

Effects of Light Stress on Oxygen Evolution and Photochemical Energy Stor age of Hybrid Poplar Clones Determined by Photoacoustic Technique

The oxygen evolution, thermal dissipation, and photochemical energy storage of three hybrid poplar clones, namely the triploid clone B342, the diploid clone B11 [(Populus alba×P. glandulosa)×(P.tomentosa×P.bolleana)], and the triploid clone B346 [(P.tomentosa×P. bolleana)×(P. alba×P.glandulosa)], under light stress were studied using photoacoustics. The oxygen evolution signal and photochemical energy storage varied negatively with the pretreatment_PFD (photon flux density), whereas the thermal signal varied positively with the pretreatment_PFD. Photochemical energy storage was reallocated to PSⅡ more than to PSⅠ, while the photochemical energy storage in PSⅠ was more stable than that in PSⅡ when subjected to light stress. The inhibitors streptomycin (SM), dithiothreitol (DTT) and sodium fluoride (NaF) could all affect the oxygen evolution signal. Clones B11 and B342 were more resistant to light stress than clone B346.

《重编改正四声全形等子》初探——兼论《四声等子》与《指玄论》的关系

杨从时编《重编改正四声全形等子》,现藏日本国立公文书馆,时代最晚不会晚于明代中叶,是四库本以前的唯一传世《四声等子》本子。文章对重编本在校勘学上的价值及其切身与见母列位问题做了说明,梳理了重编本所反映《四声等子》与《指玄论》的密切关系。