1,724,751 research outputs found
Schneider, H. an Agnes Oestreich (1 Brief)
No full textSCHNEIDER, H. AN AGNES OESTREICH (1 BRIEF)
Schneider, H. an Agnes Oestreich (1 Brief) ( -
Präimplantation, Implantation und Plazentation: Bedeutung für den Schwangerschaftsverlauf (Buchkapitel)
No full textSchneider (H. W.). Histoire de la philosophie américaine.
No full textFlam L. Schneider (H. W.). Histoire de la philosophie américaine. . In: Revue belge de philologie et d'histoire, tome 34, fasc. 4, 1956. pp. 1168-1169
Schneider (H. W.). Histoire de la philosophie américaine.
No full textFlam L. Schneider (H. W.). Histoire de la philosophie américaine. . In: Revue belge de philologie et d'histoire, tome 34, fasc. 4, 1956. pp. 1168-1169
Bruderliebe und Feindeshasz: Eine Untersuchung von fruhen Zinzendorftexten (1713-1727) in ihrem kirchengeschichtlichen Kontext
Full text linkBurger, C.P.M. [Promotor]Peucker, P.M. [Copromotor]Schneider, H. [Copromotor
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Exploring the evolution of humus collecting leaves in drynarioid ferns (Polypodiaceae, Polypodiidae) based on phylogenetic evidence
No full textMost species of the paleotropic fern genera Aglaomorpha and Drynaria, together constituting a monophyletic clade (drynarioid ferns), possess humus-collecting structures as an adaptation to their epiphytic life form. Humus-collectors are either present as a specialized foliar structure (external leaf dimorphism) or as a specialized leaf part (internal dimorphism). Apart from these basic patterns there are several forms of reduction and an internal fertile - sterile dimorphism in Aglaomorpha. We present a phylogeny of drynarioid ferns based on morphological and molecular (cpDNA) markers. The genus Aglaomorpha was found to be monophyletic, whereas Drynaria is likely to be a paraphyletic assemblage including a grade of Himalayan to Southern Chinese taxa basal to Aglaomorpha. The evolution of humus-collectors is reconstructed by plotting their character state changes onto the obtained phylogeny. Despite the complex morphological pattern across species, evolution of drynarioid humus-collecting structures can be reconstructed postulating a simple sequence of character state changes based on only a few elementary processes
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