针刺对正常及佐剂性关节炎家兔血浆5—羟色胺昼夜节律的影响

本文观察了正常和佐剂性关节炎家兔血浆５ ＨＴ昼夜节律变化以及针刺对其影响。结果表明，正常家兔血浆５ ＨＴ存在着典型昼夜节律变化，且针刺对其影响不大；模型家兔血浆５ ＨＴ浓度升高，存在着峰相位、振幅都不同的病理性节律，针刺能使它向正常节律转化。     

The theory of unequal ecological exchange: a Marx-Odum dialectic

A world-system analysis of the ecological rift generated by capitalism requires as one of its elements a developed theory of the unequal ecological exchange between center and periphery. After reviewing the literature on unequal exchange (both economic and ecological) from Ricardo and Marx to the present, a new approach is provided, based on a critical appropriation of systems ecologist Howard Odum's emergy (spelled with an m) analysis. Odum's contribution offers key elements of a wider dialectical synthesis, made possible in part by his intensive studies of Marx's political-economic critique of capitalism and by Marx's own theory of metabolic rift.