Search results for "ddc:"
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Eigennamen als kulturspezifische Symbole oder: Was Sie schon immer über Eigennamen wissen wollten
2002
Heroísmo y sabiduría en la Edad Media castellana : en torno a un aparente oxímoron
2018
En la Chanson de Roland, la asociación de Roldán, proz, con Oliveros, sages, forma a primera vista una pareja antitética. La característica principal de uno parece excluir la del otro, pero posiblemente no haya que reducir el motivo a tan drástico maniqueísmo. Dos siglos más tarde, el personaje de Alexandre en el Libro epónimo prefiere rodearse en la batalla de hombres maduros, reconocidos por su sabiduría, en lugar de soldados jóvenes: la razón invocada es que estos últimos son más susceptibles que los primeros de huir en vez de luchar por la victoria. He aquí dos episodios, seleccionados entre otros, que nos invitan a cuestionar el sentido que damos, o más bien que se les daba en la Edad …
Acid Catalysis with Alkane/Water Microdroplets in Ionic Liquids
2021
Ionic liquids are composed of an organic cation and a highly delocalized perfluorinated anion, which remain tight to each other and neutral across the extended liquid framework. Here we show that n-alkanes in millimolar amounts enable a sufficient ion charge separation to release the innate acidity of the ionic liquid and catalyze the industrially relevant alkylation of phenol, after generating homogeneous, self-stabilized, and surfactant-free microdroplets (1–5 μm). This extremely mild and simple protocol circumvents any external additive or potential ionic liquid degradation and can be extended to water, which spontaneously generates microdroplets (ca. 3 μm) and catalyzes Brönsted rather …
How Do Judgmental Overconfidence and Overoptimism Shape Innovative Activity?
2021
Recent field evidence suggests a positive link between overconfidence and innovative activities. In this paper we argue that the connection between overconfidence and innovation is more complex than the previous literature suggests. In particular, we show theoretically and experimentally that different forms of overconfidence may have opposing effects on innovative activity. While overoptimism is positively associated with innovation, judgmental overconfidence is negatively linked to innovation. Our results indicate that future research is well advised to take into account that the relationship between innovation and overconfidence may crucially depend on what type of overconfidence is most…
ADHD and DAT1: Further evidence of paternal over-transmission of risk alleles and haplotype
2010
Contains fulltext : 87259.pdf (Publisher’s version ) (Closed access) We [Hawi et al. (2005); Am J Hum Genet 77:958-965] reported paternal over-transmission of risk alleles in some ADHD-associated genes. This was particularly clear in the case of the DAT1 3'-UTR VNTR. In the current investigation, we analyzed three new sample comprising of 1,248 ADHD nuclear families to examine the allelic over-transmission of DAT1 in ADHD. The IMAGE sample, the largest of the three-replication samples, provides strong support for a parent of origin effect for allele 6 and the 10 repeat allele (intron 8 and 3'-UTR VNTR, respectively) of DAT1. In addition, a similar pattern of over-transmission of paternal ri…
Participación política, partidos y nuevos movimientos sociales
2005
En estas páginas se presenta un recorrido por diversas cuestiones relacionadas con la participación y la representación políticas en los sistemas políticos contemporáneos, tratando de recoger las aportaciones clásicas así como las más recientes que puedan resultar relevantes para la reflexión sobre la evolución de los modos y los mecanismos a disposición de los ciudadanos para integrar, articular, canalizar, movilizar y representar su participación política. La conclusión es un esperanzador saludo a las nuevas formas y mecanismos de participación diferenciados, así como a la diversificación de espacios y ámbitos para la acción política, cuya concurrencia no supone un cuestionamiento ni un r…
The importance of creative industry agglomerations in explaining the wealth of European Regions
2012
[EN] This paper examines the existence of regional agglomerations of manufacturing, service and creative industries, the relationship between these industries and the wealth of regions and their industrial structure. Through an analysis of 250 European regions, three important conclusions can be inferred from the results obtained in this paper. The first is that creative industries play an important role in the wealth of a region. The second is that the most creative regions are characterized by having more high-tech manufacturing industries than the rest of the regions although the number of low-tech manufacturing firms is similar. Lastly, the industrial structure of each region has a grea…
Cities, hinterlands and agglomeration shadows: spatial developments in Finland over 1880-2004
2011
This paper analyzes long-term spatial developments in Finland by focusing on two predictions of the new economic geography (NEG) models, the increasing persistence of locational patterns and the emerging agglomeration shadow, i.e. the rising dominance of growth centers. Pre- and post-war periods are distinguished to roughly express the shift from an agriculture-based economy to a post-industrial country. The analyses base on the assumption that each of the 19 Finnish regions has a center of its own and the rest of the region forms its local hinterland. The empirical analysis is based on regional population data from 1880 to 2004 at decade intervals. First, to analyze the persistence of loca…
Transitioning to Platform-based Services and Business Models in a B2B Environment
2021
Given the considerable success of companies such as Apple, Amazon or Airbnb, the term platform is on everyone’s lips today. Accordingly, platforms have long since also found their way into service science. However, mastering the transition from established product-sales-based offerings to platform-based services and business models comes with a multitude of challenges. In a B2B context, incumbent companies need to carefully evaluate how they can benefit from the establishment of platforms, especially in light of the effects on their existing business models and ties to other actors. Hence, we invited scholars with different backgrounds to provide viewpoints on the opportunities and challeng…
Regional climate model simulations for Europe at 6 and 0.2 k BP: sensitivity to changes in anthropogenic deforestation
2014
International audience; This study aims to evaluate the direct effects of anthropogenic deforestation on simulated climate at two contrasting periods in the Holocene, ∼ 6 and ∼ 0.2 k BP in Eu-rope. We apply the Rossby Centre regional climate model RCA3, a regional climate model with 50 km spatial resolution, for both time periods, considering three alternative descriptions of the past vegetation: (i) potential natural vegetation (V) simulated by the dynamic vegetation model LPJ-GUESS, (ii) potential vegetation with anthro-pogenic land use (deforestation) from the HYDE3.1 (History Database of the Global Environment) scenario (V + H3.1), and (iii) potential vegetation with anthropogenic land …