Text Mining Infrastructure in R

During the last decade text mining has become a widely used discipline utilizing statistical and machine learning methods. We present the tm package which provides a framework for text mining applications within R. We give a survey on text mining facilities in R and explain how typical application tasks can be carried out using our framework. We present techniques for count-based analysis methods, text clustering, text classification and string kernels.

Adaptive sequence evolution in a color gene involved in the formation of the characteristic egg-dummies of male haplochromine cichlid fishes

BACKGROUND: The exceptionally diverse species flocks of cichlid fishes in East Africa are prime examples of parallel adaptive radiations. About 80% of East Africa's more than 1 800 endemic cichlid species, and all species of the flocks of Lakes Victoria and Malawi, belong to a particularly rapidly evolving lineage, the haplochromines. One characteristic feature of the haplochromines is their possession of egg-dummies on the males' anal fins. These egg-spots mimic real eggs and play an important role in the mating system of these maternal mouthbrooding fish. RESULTS: Here, we show that the egg-spots of haplochromines are made up of yellow pigment cells, xanthophores, and that a gene coding for a type III receptor tyrosine kinase, colony-stimulating factor 1 receptor a (csf1ra), is expressed in egg-spot tissue. Molecular evolutionary analyses reveal that the extracellular ligand-binding and receptor-interacting domain of csf1ra underwent adaptive sequence evolution in the ancestral lineage of the haplochromines, coinciding with the emergence of egg-dummies. We also find that csf1ra is expressed in the egg-dummies of a distantly related cichlid species, the ectodine cichlid Ophthalmotilapia ventralis, in which markings with similar functions evolved on the pelvic fin in convergence to those of the haplochromines. CONCLUSION: We conclude that modifications of existing signal transduction mechanisms might have evolved in the haplochromine lineage in association with the origination of anal fin egg-dummies. That positive selection has acted during the evolution of a color gene that seems to be involved in the morphogenesis of a sexually selected trait, the egg-dummies, highlights the importance of further investigations of the comparative genomic basis of the phenotypic diversification of cichlid fishes

Den Geheimnissen der Materie auf der Spur : neue Denkfabrik für physikalische Grundlagenforschung

Bei Darmstadt entsteht FAIR, eines der größten internationalen Forschungszentren für Physik. Durch das von der Landesregierung geförderte Exzellenzzentrum »HIC for FAIR« erhält die Forschung in Hessen die einmalige Chance, sich direkt an globaler Spitzenforschung zu beteiligen: auf der Suche nach den letzten Geheimnissen der Materie

Global Multisector/ Multicountry 3- E Modelling : from COMPASS to GINFORS

La dimensión global de la política medioambiental, que se ha convertido en una cuestión de política internacional con la discusión concreta de objetivos e instrumentos, supone un enorme vacío de información para esa política medioambiental. Los autores postulan que éste solo puede cubrirse mediante la aplicación de modelos ambientales económicos globales, que habrán de cumplir ciertos requisitos: se necesita un sistema multi-sector y multi-país con cobertura global y con vínculos de comercio bilateral a parámetros estimados econométricamente. Los autores presentan el sistema COMPASS (Comprehensive Model of Policy Assessment) y el mejorado sistema GINFORS (Global Interindustry Forecasting System), que se está construyendo en base a la experiencia alcanzada con COMPASS. El análisis de la aplicación de GINFORS el proyecto MOSUS (Modelling Opportunities and Limits for Restructuring Europe towards Sustainability) de la UE da idea del potencial del modelo para estudiar asuntos ambientales y económicos globales y para predecir importantes indicadores ambientales. ________________________________________The global dimension of environmental policy, which has become a subject of international policy with the concrete discussion of targets and instruments, constitutes a huge information gap for environmental policy. The authors postulate, that this can only be filled by the application of global economic environmental models, which have to meet certain requirements: A multisector and multicountry system with global coverage and bilateral trade linkage with econometrically estimated parameters is needed. The authors present the system COMPASS (Comprehensive Model of Policy Assessment) and the improved system GINFORS (Global Interindustry Forecasting System), which is just being constructed based on the experiences made with COMPASS. A discussion of the application of GINFORS in the EU project MOSUS (Modelling Opportunities and Limits for Restructuring Europe towards Sustainability) gives an impression of the power of the model to analyze global economic environmental questions and to forecast important environmental indicators

Klassikerpflege II: Neues aus der Simmel- und Weber-Industrie

Literaturessay: 1) Gerald Hartung, Tim-Florian Steinbach (Hrsg.): Georg Simmel: Philosophie des Geldes. Berlin/Boston: De Gruyter 2020. 978-3-11-065194-2. 2) Hans-Peter Müller: Max Weber: Eine Spurensuche. Berlin: Suhrkamp 2020. 978-3-518-29917-3. 3) Wolfgang Schluchter: Mit Max Weber. Tübingen: Mohr Siebeck 2020. 978-3-16-159018-4

B-Seiten der Erscheinungswelt. Reiner Tintel vor dem 'Roxy'

Meyer I. B-Seiten der Erscheinungswelt. Reiner Tintel vor dem 'Roxy'. In: Reiner Tintel, Roxy. Galerie GUM 27.09.13-11.10.13. 2013: 2-7

Neues aus der Carl Schmitt-Industrie

Meyer I. Neues aus der Carl Schmitt-Industrie. Philosophische Rundschau. 2015;62(3):261-273

Niedergang des Romans? Sondierungen im Bezugsfeld eines Topos

Meyer I. Niedergang des Romans? Sondierungen im Bezugsfeld eines Topos. Merkur. 2014;68(786):965-979

Nachtschattengewächse

Meyer I. Nachtschattengewächse. In: Alexandra Sonntag, Bevorzugte Landschaft. Bielefeld, Braunschweig; 2009: 6-8

Klassikerpflege I: Neues aus der Simmel- und Weberindustrie

Sammelbesprechung: 1) Gerald Hartung, Tim-Florian Steinbach (Hrsg.): Georg Simmel - Philosophie des Geldes. Berlin/Boston: De Gruyter 2020. 978-3-11-065194-2.+++2) Hans-Peter Müller: Max Weber - Eine Spurensuche. Berlin: Suhrkamp 2020. 978-3-518-29917-3.+++3) Wolfgang Schluchter: Mit Max Weber. Tübingen: Mohr Siebeck 2020. 978-3-16-159018-4