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25 Jahre KSZE / OSZE
(2000)
Inhaltsübersicht I. Einführung II. Weltpolitischer Hintergrund und theoretische Grundlagen des KSZE-Prozesses 1. Der Weg nach Helsinki 2. Die Schlußakte von Helsinki 3. Von Helsinki nach Paris – 1975-1990 4. Aktuelle Entwicklungen III. Überblick über die Entwicklung der KSZE/OSZE IV. Die zehn Prinzipien – der "Dekalog" – aus dem Ersten Kapitel der Schlußakte V. Die menschliche Dimension der KSZE/OSZE VI. Schlußbetrachtungen
Tagungsbericht: Weiß, Norman: 20 Jahre Übereinkommen zur Beseitigung jeder Form von Diskriminierung der Frau (CEDAW)<1999, Potsdam> / 20 Jahre Übereinkommen zur Beseitigung jeder Form von Diskriminierung der Frau (CEDAW), Tagung des Menschenrechtszentrums der Universität Potsdam am 25., 26. November 1999
Selenides of the type R1Se-EMe3 (E = Si, Ge, Sn, Pb) react with xenon difluoride by cleavage of the Se-E bond to yield the R1Se-F intermediate and the fluorides Me3E-F, whereas the Se-C bond in PhSe-tBu (E = C) is stable against XeF2. The presence of R1Se-F intermediates is confirmed by addition to acetylenes (4-octyne, 3-hexyne). Thus, the fluoroselenenylation of acetylenes gives fluoro(organylseleno)olefins in preparative yields. In the cases of E = Si, Ge, Sn, and Pb, aryl and n-alkyl groups are suitable as the substituent R1. The X-ray crystal structural analysis of (E)-3- (p-carboxyphenylseleno)-4-fluorohex-3-ene - the first example of an uncharged fluoroselenoolefin synthesized from p- EtO2C-C6H4-Se-SnMe3, XeF2, and 3-hexyne followed by an ester hydrolysis - shows that the addition of the selenenylfluoride intermediate to the acetylene proceeds via a trans-addition, as is known for the R2Se2-XeF2 reagents.
"Zydokomuna"
(2000)
On the 17th of July 1800 Alexander von Humboldt was elected as an extraordinary member of the Prussian Académie royale des sciences et belles-lettres at Berlin. The paper first deals with Humboldt’s scientific activities before his election and then goes into detail as far as his integration into the work of the Academy is concerned. Humboldt was elected as a chimiste célèbre, but as a member of the Academy he did not work as a chemist. When Humboldt proposed in 1837 to classify the members of each class in special fields, he chose for himself the field of "mineralogy-geology".
"Our common humanity"
(2000)
"Kontraktmanagement" - Experiences with internal management contracts on German local government
(2000)
Alexander von Humboldt has been characterized as the second, scientific discoverer of the New World, as the last universal scientist, Aristotle of modern times, etc. However, more or less hidden in his correspondence we find certain self-characterizations which are not that well-known. Some of them are quoted and discussed in the paper. Thus, an attempt is made to answer the question why Humboldt liked to call himself "the old man from the mountains", and whether or not he found it appropriate to be called "Aristotle of our age."