286,369 research outputs found

    Nuclear particle detection using a track-recording solid

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    The design of the nuclear particle detector located in Purdue University's Get Away Special package which was flown aboard STS-7 is detailed. The experiment consisted of a stack of particle-detecting polymer sheets. The sheets show positive results of tracks throughout the block. A slide of each sheet was made for further analysis. Recommendations for similar experiments performed in the future are discussed

    Complete and incomplete spin transitions in 1D chain iron(II) compounds.

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    The synthesis and characterisation of two new octahedral iron(II) SCO coordination polymers [FeL1(bimm)] (1) and [FeL2(bppa)](MeOH)0.5 (2) (L1 = [3,30]-[1,2- phenylenebis-(iminomethylidyne)bis(4-phenyl-,4-butanedionato)(2-)-N,N0,O2,O20], L2 = [E,E]-[{diethyl 2,20-1,2- phenylenebis(iminomethylidyne)bis(3-oxo-3-phenylpropanato)}(2-)-N,N0,O3,O30], bimm = bis(1H-imidazol-1-yl)methane and bppa = 1,3-bis(pyridine-4-yl)propane) is presented. Results from X-ray structure analysis at different temperatures revealed in the case of 1 that the transition from a gradual to a cooperative SCO with a 5 K wide hysteresis is due to an increase of the short intermolecular contacts, which exceed a certain threshold for the cooperative effect. In the case of compound 2 an incomplete spin transition with a 4 K wide hysteresis was observed. The low temperature wMT product remains constant at a value typical for a mixed HS/LS state in stepwise spin transitions. A quantitative correlation between the cooperative effects of 12 monomer and polymer iron(II) SCO complexes and their structural properties derived from X-ray structure analysis, the so-called crystal contact index, CCI, is introduced

    Ambedkar and the Hindu culture

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    The Indian Neo Buddhism has aroused a movement since the 50s, which propa-gates Buddhism as the top form of the Indo-genous dharma. - The vast majority of that new religious movement belongs to the Dalits [1], people whose en-dogamous communities have been excluded from the varna system [2a] since centuries. The varna system is the traditional hierarchic structure of the relation-ships of those Indian communities who mutually acknowledge themselves as constituent members of their society. These varna jatis established a social class of people devoid of any basic social right. Declared as 'Untouchables' these peo-ple lost all human substance in the eyes of the varna jatis. Yet, that social degra-dation didn't primarily spring from racial, religious or even cultural reasons but from economic ones. When the old Indian agrarian production became a little more productive the division of labour was established as basic structure of the society; but in India the productivity remained on a low level during centuries so that the new non-productive jatis had to keep down the costs of the material pro-duction and the necessary services; they needed cheapest labour.Die indischen Neo-Buddhisten, die auch Ambedkariten genannt werden, haben seit den 50er Jahren eine Bewegung entfacht, die den Buddhismus ihrer Deutung und Praxis als Höchstform der indogenen Kultur, des Dharma, versteht. Wegen der AktualitĂ€t der Dalitfrage [1] spielen diese Neo-Buddhisten in der gegenwĂ€r-tigen Politik Indiens eine gewichtige Rolle; und fĂŒr den indischen Buddhismus haben sie nicht nur wegen ihrer politischen AktivitĂ€ten an Bedeutung gewonnen, sondern einfach auch deshalb, weil sie, ĂŒberwiegend der Mahar-Jati [2] zugehö-rig, inzwischen die Mehrheit der indischen Buddhisten bilden. Die Neo-Buddhisten gehen auf den sog. 'Vater der Indischen Verfassung' Dr. Bhimrao Ramji Sakpal, gen. Ambedkar (1891-1956) [3] zurĂŒck. Dieser indische Politiker entstammte der Mahar Jati [4] Maharashtras, die zu den höherrangigen Kasten der UnberĂŒhrbaren zĂ€hlt. Im Gegensatz zur Masse seiner Jati-Genossen war es Sakpal mit Hilfe seines brahmanischen Schullehrers Ambedkar, der ihm auch seinen Namen lieh, gelungen, eine akademische Karriere zu beginnen. Auf Grund eines Stipendiums des Maharajas von Baroda konnte er 1912 in Bombay den Grad eines Bachelor of Arts erlangen. Ein Staatsstipendium des FĂŒrstentums Baroda ermöglichte ihm ein Studium an der Columbia UniversitĂ€t in New York, wo er 1915 den Grad eines Masters of Arts erwarb. In London erlaubte ihm ein Stipendium des Maharajas von Kolhapur Jura zu studieren und als Barrister-at-Law abschließen. Außerdem erwarb er noch den Doktorgrad in Ökonomie. Am-bedkar hatte damit auf Grund brahmanischer und fĂŒrstlicher Protektion eine bei-spiellose Karriere begonnen, die ihn befĂ€higte, sofern moralisch gefestigt, die Lage der Dalits zum öffentlichen Thema in Indien zu machen

    Exploring narrativity in data visualization in journalism

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    Many news stories are based on data visualization, and storytelling with data has become a buzzword in journalism. But what exactly does storytelling with data mean? When does a data visualization tell a story? And what are narrative constituents in data visualization? This chapter first defines the key terms in this context: story, narrative, narrativity, showing and telling. Then, it sheds light on the various forms of narrativity in data visualization and, based on a corpus analysis of 73 data visualizations, describes the basic visual elements that constitute narrativity: the instance of a narrator, sequentiality, temporal dimension, and tellability. The paper concludes that understanding how data are transformed into visual stories is key to understanding how facts are shaped and communicated in society

    Learning in and of corporate venture capital organizations in Germany: industry structure, companies' strategies, organizational learning capabilities

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    Based on responses from 20 corporate venture capital organizations (CVCs) in Germany, we examine the goals, degree of autonomy, fund structure, and main investment criteria underlying the venture strategies of CVCs in Germany today as well as how the CVCs have performed strategically and financially. Further we focus on what CVCs did learn based on their experience and which strategic approach to corporate venture capital is most likely to lead to high performance. The main findings are that an organization’s deal experience tends to influence the selection of strategic as opposed to financial goals and affects CVC performance. Individual experience has partly an additional effect on CVC performance. CVCs pursuing an approach that emphasized financial more than strategic goals have more experience at transacting deals and are financially – and sometimes strategically – more successful than CVCs that focus mainly on strategic goals. These results support conclusions drawn by Siegel, Siegel, and MacMillan (1988) and thereby challenge the findings that Gompers and Lerner (1998) reported for the German market in question. We discuss the limitations and contributions of our findings and provide directions for future research. -- Anhand von 20 Corporate Venture Capitalist Organisationen (CVCs) in Deutschland untersuchen wir die Ziele, das Ausmaß an Entscheidungsautonomie, die Fondsstruktur sowie die wichtigsten Investitionskriterien, die den Strategien der CVCs in Deutschland zugrunde liegen; und wir gehen der Frage nach, wie erfolgreich die CVCs in strategischer und finanzieller Hinsicht waren bzw., ob sie ihre Ziele erreicht haben. DarĂŒber hinaus richten wir unser Augenmerk darauf, was CVCs basierend auf ihren Erfahrungen gelernt haben und welcher strategische Ansatz fĂŒr das Corporate VC-GeschĂ€ft allgemein der erfolgversprechendste ist. Die Hauptergebnisse machen deutlich, dass die Transaktionserfahrung der CVCs, die Wahl der grundsĂ€tzlichen Zielrichtung – strategische vs. finanzielle – ebenso beeinflusst, wie den CVC-Erfolg. Die individuelle Erfahrung hat nur teilweise einen zusĂ€tzlichen Einfluß auf den CVC-Erfolg. CVCs, die ĂŒberwiegend finanzielle gegenĂŒber strategischen Zielen verfolgen, verfĂŒgen ĂŒber mehr Transaktionserfahrung und sind finanziell – teilweise auch strategisch – erfolgreicher als CVCs, die vorwiegend strategische Ziele verfolgen. Diese Ergebnisse stĂŒtzen Erkenntnisse von Siegel, Siegel und MacMillan (1988) und stellen damit anderslautende Ergebnisse von Gompers und Lerner (1998), zumindest fĂŒr den deutschen CVC-Markt, in Frage. Wir diskutieren den Beitrag unserer Ergebnisse und liefern AnsĂ€tze fĂŒr zukĂŒnftige Forschung.
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