1,246 research outputs found

    Molecular basics of mycorrhizal symbioses

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    Pühler A, Strack D. Molecular basics of mycorrhizal symbioses. PHYTOCHEMISTRY. 2007;68(1):6-7

    Searching for a New Role in East Asian Regionlization: Japanese Production Networks in the Electronics Industry

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    This paper will be published in Peter and J. Katzenstein and Takashi Shiraishi, eds. Remaking East Asia: Beyond Americanization and Japanization, Cornell University Press. Part 1 introduces a few conceptual building-blocks that we need to capture the interactions between international business organization and regionalization. Part 2 describes the growing dependence of Japan's electronics industry on Asia, and explores how Japanese electronics firms are searching for ways to expand and upgrade their regional production networks, with China as the main prize. Part 3 examines constraints to change. I highlight peculiar features of the Japanese network management model in East Asia that once may have reflected strength. But now these very same features have turned into systemic weaknesses, as they constrain the capacity of Japanese firms to cope with and shape East Asia's increasingly complex processes of regionalization. The chapter concludes with an illustrative example of how some Japanese electronics firms are seeking to turn around gradually their EAPNs, by developing strategic alliances with emerging new industry leaders in Asia, primarily from Greater China. Forthcoming as: "Searching for a New Role in East Asian Regionalization - Japanese Production Networks in the Electronics Industry", chapter 7, in: Peter and J. Katzenstein and Takashi Shiraishi, eds., Remaking East Asia: Beyond Americanization and Japanization, Cornell University Press.

    Knowledge cluster formation as a science policy: lessons learned

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    Regional science policy aims at the creation of productive knowledge clusters, which are central places within an epistemic landscape of knowledge production and dissemination, K-clusters are said to have the organisational capability to drive innovations and create new industries. The following paper will look at Malaysia, Indonesia and Vietnam and their path towards a Knowledge-based economy. All governments have used cluster formation as one of their development strategies. Some evidence on the current state of knowledge cluster formation is provided. If the formation of a knowledge cluster has been the government policy, what has been the result? Is there an epistemic landscape of knowledge clusters? Has the main knowledge cluster really materialised? Data collected from websites, directories, government publications and expert interviews have enabled us to construct the epistemic landscape of Peninsular Malaysia and the Mekong Delta of Vietnam. Several knowledge clusters of a high density of knowledge producing institutions and their knowledge workers have been identified and described. An analysis of the knowledge output, measured in terms of scientific publications, patents and trademarks show that knowledge clusters have, indeed, been productive as predicted by cluster theory, though the internal working of clusters require further explanation.Science policy; knowledge and development; knowledge-based economy; knowledge clusters; knowledge corridors; Malaysia; Vietnam

    Evolution Physics

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    This work is a revised edition of the former article "Evolution and Mutation Physics” by the same author. Some unclear formulations have been eliminated. New ideas and new calculations have been included, especially the important connection between successive entropy - changes and increasing DNA –length at slowly decreasing temperature-decrease of surroundings

    Die Kalkulation irreparabler Mutationen

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    This work is a revision of the article "Die Kalkulation kalkulierbarer Mutationen” by the same author. In some chapters errors have been corrected in the mathematical representation. Chapters 6 and 7 have been re-edited. In this work, corrected excerpts from "Tumour Physics" and from "Evolution and mutation Physics" are used. To the agencies concerned should be noted

    Die Physik irreparabler Mutationen

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    This work is a revised edition of the former article “Die Kalkulation irreparabler Mutationen” by the same author. New calculations have been included, and some unclear formulations have been eliminated. New is in the present edition above all the calculation of the very certain temperature - alterations which are necessary for the lengthening of monotonous sequence for one position, provided that these are responsible for a constant viscosity - change of the DNA surroundings (section 6, equations 94 and 95)

    Una vida entre los Warao: Heinz Dieter Heinen (1929-2015)

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    Resumen. Heinz Dieter Heinen (1929–2015) fue un destacado antropólogo con importantes contribuciones al estudio de la cultura e historia de los Warao, autor de numerosas publicaciones acerca de esa etnia amerindia. Este trabajo reseña aspectos de su vida y obra académica.Abstract. Heinz Dieter Heinen (1929–2015) was a prominent anthropologist with important contributions to the study of the culture and history of the Warao, author of numerous publications about that Amerindian ethnic group. This work outlines aspects of his life and academic work

    Charakterisierung von N-Acyl-glutaminkonjugaten aus dem Regurgitat von Lepidoptera Larven

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    Viele Pflanzen reagieren bei Herbivorenbefall, z. B. durch Lepidoptera-Larven, mit Abwehrreaktionen, unter anderem mit der Produktion von Duftstoffen. Da einfache mechanische Verwundung diese Verteidigungseaktion nicht einleitet, scheinen im Regurgitat (Vorderdarminhalt) befindliche chemische Komponenten Auslöser (Elicitoren) der pflanzlichen Abwehr zu sein. Bei der Charakterisierung der chemischen Zusammensetzung von Regurgitat wurden schwerpunktsmässig N-Acylglutaminkonjugate, die als Elicitoren angesehen werden, untersucht: die Stereochemie der 17-Hydroxygruppe von Volicitin [(17S)-N-(17-Hydroxylinolenoyl)-L-glutamin) wurde bestimmt und neue N-Acylglutaminkonjugate wie N-(15,16-Epoxylinoleoyl)-glutamin, N-(15,16-Dihydroxylinoleoyl)-glutamin und N-(17-Phosphonoxylinolenoyl)-glutamin sowie N-(17-Acyloxyacyl)-glutamine wurden mit Hilfe von LC-MS/MS, GC-MS und synthetisierten Referenzverbindungen identifiziert. Die Biosynthese von N-Acylglutaminkonjugaten wird in vitro von Darmbakterien der Lepidoptera-Larven katalysiert. Die Tensideigenschaften von N-Acylglutaminen sind vermutlich Ursache für ihre Elicitorwirkung auf manche Pflanzen. Das zur Beschreibung der Interaktionen von Pflanze, Herbivor und Predator verwendete tritrophische System muss daher erweitert werden, um auch die mikrobielle Komponente zu berücksichtigen

    The evolution seen from the angle of quantum physics

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    In previous publications [1,7] the author described the base rivalry in monotonous DNA sequences and their effect on the DNA repair mechanism. According to this theory, many base building blocks compete for the occupancy of the newly released base site in the replication of monotonous DNA sequences in the elongation phase. This gives them more and more kinetic energy from replication position k to next position. Thus, there is a probability that a tautomeric base pair is formed behind the end of the monotonic sequence because of the tunneling effect. After its replication a different, irreparable base pair develops from the tautomeric base pair, when the rivalry - energy leads to a very strong hydrogen bond. This happens, however, by chance. In the following, we will describe the 3 phenomena: The tunnel probability (section 2), the probability for coming up of a high – energy – base building block (Elitist, section 3),and the combination of both phenomena (section 4). The result of these calculations is the equation (28). It is remarkable that follows from these calculations that the length of the monotonous sequences, and also the length of DNA increases itself in the course of evolution (section 5). (Read up all detailed computations in [7].) [... from introduction

    Collaborative conservation in action: a real-time Colorado case study

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    Presented at the Bridging the gap: collaborative conservation from the ground up conference, September 8-11, 2009, Colorado State University, Fort Collins, Colorado, sponsored by the Center for Collaborative Conservation, https://collaborativeconservation.org/. This conference brought together people with experience working collaboratively to achieve both conservation and livelihood goals in tribal nations, rangelands, forests, watersheds, agricultural lands, and urban areas. Carl Palmer is co-founder of Beartooth Capital Partners. Dieter Erdmann is Director of Conservation Operations for Colorado Open Lands.Colorado Open Lands, Park County, and Beartooth Capital (a private investment fund) have been collaborating to conserve and restore top priority conservation properties in South Park for the past several years, building on the more than 10-year track record of partnership between Park County and Colorado Open Lands. Beartooth Capital is a private investment fund dedicated to making investments that conserve important ranches while generating returns for investors, and its involvement is enabling the partnership to extend its reach and achieve conservation goals that had been thought out of reach. In this session, Dieter Erdmann, Director of Conservation Operations for Colorado Open Lands, and Carl Palmer, co-founder of Beartooth Capital, will introduce their organizations and each party's role in the partnership, exploring the details, strengths and challenges to this kind of innovative approach to landscape-scale conservation
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