Studium zur Klärung der Gattung Rodriguezia Ruiz et Pav

Lipoidal labellar secretions in Maxillaria ruiz & pav. (Orchidaceae).

The labella of Maxillaria acuminata Lindl., M. cerifera Barb. Rodr. and M. notylioglossa Rchb.f., all members of the M. acuminata alliance, produce a viscid wax-like secretion. Histochemical analysis revealed that the chemical composition of the secretion is similar in all three species, consisting largely of lipid and protein. Light microscopy and low-vacuum scanning electron microscopy were u...

Innovationsmanagement an Hochschulen: Maßnahmen zur Unterstützung der Digitalisierung von Studium und Lehre

Die Digitalisierung stellt Hochschulen vor organisatorische, inhaltliche und technische Herausforderungen, insbesondere wenn Hochschulen sich auch als Ort verstehen, an dem die aktive Mitgestaltung der Entwicklung digitaler Medien durch Lehrende und Studierende bewusst gefördert wird. Ein solcher Ansatz benötigt ein explizites Innovationsmanagement als Teil der partizipativen Digitalisierungsst...

für das Studium der neueren Sprachen und Literaturen

Synopsis of Plazia Ruiz & Pav. (Onoserideae, Asteraceae), including a new species from northern Peru

A synopsis of Plazia Ruiz & Pav. (Onoserideae, Asteraceae) is presented, including the description of a new species, Plazia robinsonii M.O.Dillon & Sagást., from a locality c. 20 kms west of Huamachuco, Department of La Libertad in northern Peru. It most closely resembles Plazia conferta Ruiz & Pav., a narrow endemic from central Peru some 450 km to the south; however, the latter species has la...

Zur Geschichte der Psychiatrie

medical texts. It is one of the major resources in measuring the shifts in perception present within systems that claim to represent the "realities" of the world. It is thus not merely of interest to parallel one world of aesthetic objects to another (as Glandien does in his work on Messerschmidt and his influence in contemporary art) or to draw the internal history of the function of photograp...