Commodifying Development Experience: Deconstructing Development as Gift in the Development Blockbuster

This paper discusses the recent rise of popular ‘blockbuster’ books written by international development industry insiders and produced by commercial publishers. The paper explores a set of common stylistic devices found within this emerging genre. Though each book is different, a key trope is the story of an author's earlier professional life—the hard lessons and gritty insights that have supposedly emerged from it—that normally underpins each narrative. By living the challenges involved in development work at first hand, and by making mistakes and experiencing epiphanies along the way, these author-professionals want readers to know that they have found out the hard way that long-cherished beliefs about development now need to be questioned. Readers are invited to relive these lessons and epiphanies, and to think and act differently about development by upholding a highly pragmatic form of development professionalism. Combining elements of research monograph, self-help book and personal memoir, these development blockbuster books can be understood not only as commodities, but also as part of the development gift. The authors promise a gift of experience but, in reality, these books are mundane commodities enmeshed in capitalist exchange relations.     

植物根的发育

介绍了目前通过模式植物拟南芥的研究,对胚胎时期胚根的起源、侧根的起源以及原后根的生长发育等问题一些有意义的研究成果,阐述了根结构与发育的控制机制,指出位置信息、静止中心、基因在根生长发育中的作用和影响。分析了根的结构与根端分生组织的关系。     

Homology in Development and the Development of the Homology Concept

Homology is a central concept for Developmental Evolution. HereI argue that homology should be explained within the referenceprocesses of development and evolution; development becauseit is the proximate cause of morphological characters and evolutionbecause it deals with organic transformations and stability.This was already recognized by Hans Spemann in 1915. In a seminalessay "A history and critique of the homology concept" Spemannanalyzed the history and present problems of the homology concept.Here I will continue Spemann's project and analyze some of the20th century contributions to homology. I will end with a fewreflections about the connections between developmental processesand homology and conclude that developmental processes are inherentin (i) the assessment of homology, (ii) the explanation of homology,(iii) the origin of evolutionary innovations (incipient homologues),and (iv) can be considered homologous themselves.     

S-腺苷蛋氨酸研究进展

S-腺苷蛋氨酸(SAM)是生物体内重要的中间代谢物质,参与多种生化反应．重点介绍了 S-腺苷蛋氨酸的制备和稳定性研究,同时综述了其生理功能、提取纯化和分析检测及临床应用．