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The consequences of economic globalization have created a new interest in ́EmileDurkheim’s conception of an institutional and moral reorganization of modernsociety that he developed in Professional Ethics and Civic Morals. Contrary toexisting attempts to explain these political processes towards democratization, thisarticle argues for a causal analysis of social change and concentrates on the socialmechanisms that trigger the reorganization process of modern society. Two thesesare entertained. The first thesis argues that the programme of an institutional andmoral reorganization of modern society can be reanalysed as a causal process ofdemocratization. This process takes two steps. While social mechanisms of reorgan-izationbring about the institutional and moral reorganization of modern society,social mechanisms of stabilizationguarantee the functioning of the emergingdemocratic system. Further, the second thesis argues that this kind of explanationcan be applied to Durkheim’s vision of a European confederation. The analysisreveals that his idea of a ‘post-national’ constellation refers to crucial problems ofthe recent debate regarding a democratic deficit in the European Union, and itshows that Durkheim’s contribution to both political sociology and historical-comparative research has been misconceived and prematurely repudiated.
Portal alumni
(2004)
Liebe Leserin,lieber Leser,das sind doch gute Nachrichten: Ein Studienabschluss schafft nach einer aktuellen Studie des Hochschul-Informations-Systems (HIS) in Hannover nach wie vor die besten Chancen auf einen Arbeitsplatz. Die Arbeitslosenquote von Akademikern pendelt sich ein halbes Jahr nach dem Examen bei fünf Prozent ein. Bei Absolventen einer Lehre liegt sie dagegen doppelt so hoch. Doch auch für Akademiker ist der Einstieg ins Berufsleben kein Selbstläufer mehr. Mit nichts als eingleisigem Fachwissen als Kapital haben es auch Akademiker inzwischen schwer, denn der Arbeitsmarkt hat sich in den letzten Jahren stark verändert. Welche Veränderungen das sind und wie man am besten darauf reagiert, beleuchtet die Rubrik "wissenstransfer". Das man an der Universität Potsdarn mehr als reines Fachwissen erwerben kann, zeigen die Berichte der Alumni über ihren Berufsweg in der Rubrik "umbrüche". Von geradlinigen Entwicklungen ist da zu lesen, von enttäuschten Erwartungen und ergriffenen Chancen. Sie dokumentieren, wie Brüche im beruflichen Werdegang zwar manchen vom geplanten Weg abkommen ließen, doch auf den persönlich richtigen Pfad fuhrten. Wer sich gerade in der Phase der beruflichen Neuorientierung befindet, oder gerade erst ins Arbeitsleben startet, findet Tipps und Adressen im "wegweiser". Die Redaktion wünscht Ihnen viel Vergnügen beim Lesen von Portal alumni. Mit den besten Grüßen, Ihr Alumni-Team.
Portal alumni
(2004)
Liebe Leserin, lieber Leser, weit weg wollen wir Sie mit der ersten Ausgabe unseres Magazins Portal alumni entführen. Nach dem wir im Mai des vergangenen Jahres auf die Suche nach Ehemaligen der Universität Potsdam gingen, stellten wir fest, dass es Absolventen der Hochschule in alle Himmelsrichtungen verschlagen hat, nach Australien, Afrika oder Amerika. Aus ganz unterschiedlichen Gründen haben Ehemalige ihre Koffer gepackt, und uns hat interessiert, wie sie es geschafft haben, nach dem Studium ins Ausland zu gehen und welche Erfahrungen sie dabei gemacht haben. Herausgekommen sind neben spannenden Geschichten viele persönliche Empfehlungen zu den Themen Berufseinstieg und Mobilität. Und neben den Erfahrungen einiger unserer Absolventen mit einem "internationalen Berufseinstieg" interessierte es uns auch zu erfahren, wie sich Professoren der Universität Potsdam um ihre Ehemaligen kümmern und kümmern wollen. Von Seiten vieler Absolventen erhielten wir Signale, dass sie neben der Kommunikation untereinander Interesse daran haben, Neuigkeiten aus ihrer noch gar nicht so alten Alma mater zu erhalten. Mit unserem ersten Magazin fangen wir damit an, einen Rückblick über besondere Ereignisse des vergangenen Jahres zusammenzustellen. Und natürlich wollen wir mit den einzelnen Ausgaben von Portal alumni unseren Ehemaligen viele Tipps, Informationen und Links zu Weiterbildung, Jobs, Karrierestart und anderen Themen für den weiteren beruflichen Weg geben. Die Redaktion wünscht Ihnen nun viel Spaß bei der Lektüre.
Minimality effects in syntax
(2004)
Kommunalrecht
(2004)
V.S. Reid
(2004)
Samuel Selvon
(2004)
Roger Mais
(2004)
George Lamming
(2004)
Derek Walcott
(2004)
Caryl Phillips
(2004)
Andrew Salkey
(2004)
Wilson Harris
(2004)
Edgar Mittelholzer
(2004)
Earl Lovelace
(2004)
Jamaica Kincaid
(2004)
Fred D'Aguiar
(2004)
Erna Brodber
(2004)
Edward Kamau Brathwaite
(2004)
David Dabydeen
(2004)
Neuer Wein in alten Schläuchen : ein Verbrechen am Sammelband aus Passion für das Kriminalgenre
(2004)
When exposed to sufficiently high electric fields, polymer-foam electret materials with closed cells exhibit ferroelectric-like behavior and may therefore be called ferroelectrets. In cellular ferroelectrets, the influence of the cell size and shape distributions on the application-relevant properties is not yet understood. Therefore, controlled inflation experiments were carried out on cellular polypropylene films, and the resulting elastical and electromechanical parameters were determined. The elastic modulus in the thickness direction shows a minimum with a corresponding maximum in the electromechanical transducer coefficient. The resonance frequency shifts as a function of the elastic modulus and the relative density of the inflated cellular films. Therefore, the transducer properties of cellular ferroelectrets can be optimized by means of controlled inflation. (C) 2004 American Institute of Physics
We have undertaken a thorough dynamical investigation of five extrasolar planetary systems using extensive numerical experiments. The systems Gl 777 A, HD 72659, Gl 614, 47 Uma and HD 4208 were examined concerning the question of whether they could host terrestrial-like planets in their habitable zones (HZ). First we investigated the mean motion resonances between fictitious terrestrial planets and the existing gas giants in these five extrasolar systems. Then a fine grid of initial conditions for a potential terrestrial planet within the HZ was chosen for each system, from which the stability of orbits was then assessed by direct integrations over a time interval of 1 million years. For each of the five systems the 2-dimensional grid of initial conditions contained 80 eccentricity points for the Jovian planet and up to 160 semimajor axis points for the fictitious planet. The computations were carried out using a Lie-series integration method with an adaptive step size control. This integration method achieves machine precision accuracy in a highly efficient and robust way, requiring no special adjustments when the orbits have large eccentricities. The stability of orbits was examined with a determination of the Renyi entropy, estimated from recurrence plots, and with a more straightforward method based on the maximum eccentricity achieved by the planet over the 1 million year integration. Additionally, the eccentricity is an indication of the habitability of a terrestrial planet in the HZ; any value of e > 0.2 produces a significant temperature difference on a planet's surface between apoapse and periapse. The results for possible stable orbits for terrestrial planets in habitable zones for the five systems are: for Gl 777 A nearly the entire HZ is stable, for 47 Uma, HD 72659 and HD 4208 terrestrial planets can survive for a sufficiently long time, while for Gl 614 our results exclude terrestrial planets moving in stable orbits within the HZ. Studies such as this one are of primary interest to future space missions dedicated to finding habitable terrestrial planets in other stellar systems. Assessing the likelihood of other habitable planets, and more generally the possibility of other life, is the central question of astrobiology today. Our investigation indicates that, from the dynamical point of view, habitable terrestrial planets seem to be compatible with many of the currently discovered extrasolar systems
In this paper we present densely sampled fumarole temperature data, recorded continuously at a high-temperature fumarole of Mt. Merapi volcano (Indonesia). These temperature time series are correlated with continuous records of rainfall and seismic waveform data collected at the Indonesian - German multi-parameter monitoring network. The correlation analysis of fumarole temperature and precipitation data shows a clear influence of tropical rain events on fumarole temperature. In addition, there is some evidence that rainfall may influence seismicity rates, indicating interaction of meteoric water with the volcanic system. Knowledge about such interactions is important, as lava dome instabilities caused by heavy-precipitation events may result in pyroclastic flows. Apart from the strong external influences on fumarole temperature and seismicity rate, which may conceal smaller signals caused by volcanic degassing processes, the analysis of fumarole temperature and seismic data indicates a statistically significant correlation between a certain type of seismic activity and an increase in fumarole temperature. This certain type of seismic activity consists of a seismic cluster of several high-frequency transients and an ultra-long-period signal (< 0.002 Hz), which are best observed using a broadband seismometer deployed at a distance of 600 m from the active lava dome. The corresponding change in fumarole temperature starts a few minutes after the ultra-long-period signal and simultaneously with the high-frequency seismic cluster. The change in fumarole temperature, an increase of 5 degreesC on average, resembles a smoothed step. Fifty-four occurrences of simultaneous high-frequency seismic cluster, ultra-long period signal and increase of fumarole temperature have been identified in the data set from August 2000 to January 2001. The observed signals appear to correspond to degassing processes in the summit region of Mt. Merapi. (C) 2004 Elsevier B.V. All rights reserved
Presentación : Vorstellung
(2004)
It has been found in recent measurements that the singlet-to-triplet exciton ratio in organic light-emitting diodes (OLEDs) is larger than expected from spin degeneracy, and that singlet excitons form at a larger rate than triplets. We employed the technique of optically detected magnetic resonance to measure the spin-dependent exciton formation rates in films of a polymer and corresponding monomer, and explore the relation between the formation rates and the actual singlet-to-triplet ratio measured previously in OLEDs. We found that the spin-dependent exciton formation rates can indeed quantitatively explain the observed exciton yields, and that singlet formation rates and yields are significantly enhanced only in polymer OLEDs, but not in OLEDs made from the corresponding monomer
A method for construction of biosensors with membranous cytochrome P450 isoenzymes was developed based on clay/ detergent/protein mixed films. Thin films of sodium montmorillonite colloid with incorporated cytochrome P450 2134 (CYP2B4) with nonionic detergent were prepared on glassy carbon electrodes. The modified electrodes were electrochemically characterized, and bio-electrocatalytic reactions were followed. CYP2B4 can be reduced fast on clay- modified glassy carbon electrodes in the presence of the nonionic detergent Tween 80. In anaerobic solutions, reversible oxidation and reduction is obtained with a formal potential between -0.292 and - 0.305 V vs Ag/AgCl 1 M KCl depending on the preparation of the biosensor. In air-saturated solution, bio-electrocatalytic reduction currents can be obtained with the CYP2B4-modified electrode on addition of typical substrates such as aminopyrine and benzphetamine. This reaction was suppressed when methyrapone, an inhibitor of P450 reactions, was present. Measurement of product formation also indicates the bioelectrocatialysis by CYP2B4
Economy vs. history : what does actually determine the distribution of firms' locations in cities?
(2004)
Seminarband: Sensornetze
(2004)
Gender und Medienpädagogik
(2004)
Suppression of the keto-emission in polyfluorene light-emitting diodes : Experiments and models
(2004)
The spectral characteristics of polyfluorene (PF)-based light-emitting diodes (LEDs) containing a defined low concentration of either keto-defects or of the polymer poly(9.9-octylfuorene-co-benzothiadiazole) (F8BT) are preseneted. Both types of blend layers were tested in different device configurations with respect to the relative and absolute intensities of green blue emission components. It is shown that blending hole-transporting molecules into the emission layer at low concentration or incorporation of a suitable hole-transport layer reduces the green emission contribution in the electroluminescence (EL) spectrum of the PF:F8BT blend, which is similar to what is observed for the keto- containing PF layer. We conclude that the keto-defects in PF homopolymer layers mainly constitute weakly emissive electron traps, in agreement with the results of quantum-mechanical calculations
The presence of partially folded intermediates along the folding funnel of proteins has been suggested to be a signature of potentially aggregating systems. Many studies have concluded that metastable, highly flexible intermediates are the basic elements of the aggregation process. In a previous paper, we demonstrated how the choice between aggregation and folding behavior was influenced by hydrophobicity distribution patterning along the sequence, as quantified by recurrence quantification analysis (RQA) of the Myiazawa-Jernigan coded primary structures. In the present paper, we tried to unify the "partially folded intermediate" and "hydrophobicity/charge" models of protein aggregation verifying the ability of an empirical relation, developed for rationalizing the effect of different mutations on aggregation propensity of acyl-phosphatase and based on the combination of hydrophobicity RQA and charge descriptors, to discriminate in a statistically significant way two different protein populations: (a) proteins that fold by a process passing by partially folded intermediates and (b) proteins that do not present partially folded intermediates
The roots of evil : the foundation years of anti-semitism : from the time of Bismarck to Hitler
(2004)
Based on data from a Mid-German dialect area of Dresden, this article presents research on the structure and functions of regionalized intonation. The Dresden data comes from informal conversation-like settings and illustrates a contour that is typical of the Dresden city vernacular: a contour previously named and described as the Dresden Fallbogen. An analysis of the phonetic forms and phonological structures of the contour is provided, and its use and function in conversational interactions is described. Additional methods of investigating the perception and identification of these contours by subjects in an experimental setting are also given. The article concludes with remarks about the possible relevance of this contour as a signal of identity
English and German, though genetically closely related, have undergone different developments with regard to the verbal category aspect in its interaction with aktionsart. English has grammaticalized a periphrastic construction to mark the progressisve whereas German - if at all - uses word formation to mark the perfective. This study deals with verbal prefixes, especially ge-/gi-, in the earliest attestable stages of the two languages, i.e. in Old English (King Alfred's Orosius) and Old High German (Tafan). These elements have often been considered markers of perfective aspect or aktionsart and can be compared to perfectives, which - according to Bybee/Perkins/Pagliuca (1994) - have developed from "bounders", i.e. adverbial particles to denote situation boundaries. Our analyses suggest that although there are basic similarities in the use of the various verbal constructions, the diverging paths of development with regard to aspect seem to begin already in these early stages
We remelted and analyzed crystallized silicate melt inclusions in quartz from a porphyritic albitezinnwaldite microgranite dike to determine the composition of highly evolved, shallowly intruded, Li- and F-rich granitic magma and to investigate the role of crystal fractionation and aqueous fluid exsolution in causing the extreme extent of magma differentiation. This dike is intimately associated with tin- and tungsten-mineralized granites of Zinnwald, Erzgebirge, Germany. Prior research on Zinnwald granite geochemistry was limited by the effects of strong and pervasive greisenization and alkali-feldspar metasomatism of the rocks. These melt inclusions, however, provide important new constraints on magmatic and mineralizing processes in Zinnwald magmas. The mildly peraluminous granitic melt inclusions are strongly depleted in CAFEMIC constituents (e.g., CaO, FeO, MgO, TiO2), highly enriched in lithophile trace elements, and highly but variably enriched in F and Cl. The melt inclusions contain up to several thousand ppm Cl and nearly 3 wt% F, on average; several inclusions contain more than 5 wt% F. The melt inclusions are geochemically similar to the corresponding whole-rock sample, except that the former contain much more F and less CaO, FeO, Zr, Nb, Sr, and Ba. The Sr and Ba abundances are very low implying the melt inclusions represent magma that was more evolved than that represented by the bulk rock. Relationships involving melt constituents reflect increasing lithophile-element and halogen abundances in residual melt with progressive magma differentiation. Modeling demonstrates that differentiation was dominated by crystal fractionation involving quartz and feldspar and significant quantities of topaz and F-rich zinnwaldite. The computed abundances of the latter phases greatly exceed their abundances in the rocks, suggesting that the residual melt was separated physically from phenocrysts during magma movement and evolution. Interactions of aqueous fluids with silicate melt were also critical to magma evolution. To better understand the role of halogen-charged, aqueous fluids in magmatic differentiation and in subsequent mineralization and metasomatism of the Zinnwald granites, Cl-partitioning experiments were conducted with a F-enriched silicate melt and aqueous fluids at 2,000 bar (200 MPa). The results of the experimentally determined partition coefficients for Cl and F, the compositions of fluid inclusions in quartz and other phenocrysts, and associated geochemical modeling point to an important role of magmatic-hydrothermal fluids in influencing magma geochemistry and evolution. The exsolution of halogen-charged fluids from the Li- and F- enriched Zinnwald granitic magma modified the Cl, alkali, and F contents of the residual melt, and may have also sequestered Li, Sri, and W from the melt. Many of these fluids contained strongly elevated F concentrations that were equivalent to or greater than their Cl abundances. The exsolution of F-, Cl-, Li-, +/- W- and Sn-bearing hydrothermal fluids from Zinnwald granite magmas was important in effecting the greisenizing and alkali-feldspathizing metasomatism of the granites and the concomitant mineralization