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Spuren des Chronos im Wurzelbereich
Traces of Chronos in the root region
Close investigation of rhythmic geniculation in root systems reveals cyclic processes of generation. Distinct roots repeatedly cease and are succeedecl by lateral ones. At a longer or shorter time before such a growth interruption takes place, the direction of growth changes more or less suddenly… Read More
Holismus und Evolution
Holisrn and Evolution
The frequently controversial issue of whether bolism and evolution are different paradigms in the life-sciences is examined through a broad discussion of all ways of thinking. The conclusion is that they are different approaches to the reality of organisms. In addition, mathematical procedures and picture-forming… Read More
Die Dreigliederung der Haut
The threefoldness of the skin
If the three layers of the human skin are analysed according to a functional view, a picture of the effective formative forces in the skin is produced.
The primary formative force of the outermost layer (epidermis) produces the horny substance which isolates the physical organism from its… Read More
Über das Verhalten des Blattgrundes an blütennahen Laubblättern der Gattungen Ranzmculus und Adonis Ranunculus bulbosus, Knolliger Hahnenfuß
On the behaviour of the leaf base of leaves in the vicinity to the blossoms of the genera Ranzmculus and Adonis
In the family Ranunculaceae we sometimes find transitional forms between the usually distinct leaf organs. The last leaves before the inflorescences in the leaf successions of Ranunculus acris (meadow buttercup), Ranzmculus… Read More
»Studieren Sie die Rhythmen«- zum Gedenken an Gunther Hildebrandt
Jahresrhythmus und Schilddrüsenfunktion unter besonderer Berücksichtigung des Morbus Basedow
Annual rhythm and thyroid function with particular reference to Grave’s disease
Turning points in the biological year are not identical to those of the cosmic-geophysical year. The ascending half of the biological year (February to August) is marked by an ergotropic tendency for vegetatively autonomous regulation. Correspondingly, in… Read More
Chronobiologische Aspekte der Schmerzempfindung
Chronobiological aspects of pain sensation
It has been known for a long time that sensation of pain shows large variations. The first systematic investigations were carried out at the beginning of the 20th century. Principally, pain intensity can be influenced by sensitivity changes of the nociceptors in peripheral tissue and by… Read More
Die Zunahme morphologischer und physiologischer Autonomie bei den Volvocales
The increase of morphological and physiological autonomy with the Volvocales
The transition to multicellularity in early evolution led to an emancipation from the environment and to an increase of organismal autonomy. As a model for this principle, the Volvocales are studied. Within the green algae a sequence from single celled forms to… Read More
Das Geheimnis der Armleuchteralgen (Characeae)
The secret of candelabra algae (Characeae)
Candelabra algae (Characeae) belong to the most endangered fresh water plants. In deep lakes they need very clear water, poor in nutrients. In shallow water regular mechanical disturbances are necessary to protect their existence because Characeae are pioneering vegetation in such places. This… Read More
Von Bärlappen, Mondrauten und Natternzungen
Clubmosses, grape-ferns and Adder’s-tongue ferns
The clubmosses (Lycopodiaceae), grape-ferns (Botrychium) and Adder’s-tongue ferns (Op/aioglossum) are rclatively rare groups of pteridophytes in the European flora. Here we help to analyze the different species in the field as well as to grasp the obvious coherence of these differences.… Read More
