The relatively simple, stratified nature of the retina and its spe- fied use in the visual process has long made it an inviting tissue to study both for its own sake and as a model for the more complex processes of the brain.
Dieses Sammelwerk gibt neben einer Einführung in die makroskopische Anatomie der Regenbogenforelle eine detaillierte Beschreibung der Histologie der einzelnen Organe bzw.
During the intensification of research activities in the Southern Ocean in recent years, both at national levels and through international cooperation in such projects as BIOMASS with its FIBEX and SIBEX phases, the need was felt increasingly for closer collaboration between biologists, meteorologists, and oceanographers in the study of the interaction between the atmospheric forces, the water masses, and the living resources.
The 13th International Conference on Plant Growth Substances was held from the 17th to the 26th July, 1988 in Calgary, Alberta Canada under the auspices of the IPGSA (International Plant Growth Substances Association) and the University of Calgary.
An overview of speciation theory reveals an increasingly held view that many events leading to the origin of new species occur in transient, unstable populations.
Advances in Comparative and Environmental Physiology helps biologists, physiologists, and biochemists keep track of the extensive literature in the field.
Communication is both a prerequisite and manifestation of social organization and in this sense several chapters of this volume are aimed to investigate the way vocal communication serves its ultimate function of maintaining social organization.
With improved microscope and preparation techniques, studies of histo- logical structures of plant organisms experienced a revival of interest at the end of the 19th century.
It is widely recognized that spiral grain in trees severely reduces the value of sawn timber through warping and loss of strength, and that it also causes problems for other wood uses as diverse as transmission poles or plywood.
Sympathetic afferent fibers originate from a visceral organ, course in the thoracolumbar rami communicantes, have cell bodies located in dorsal root ganglia, and terminate in the gray matter of the spinal cord.
Die einzelnen Beiträge aus den verschiedensten Wissensgebieten der Natur- und Geisteswissenschaft geben ein biographisches Abbild von der Vielfalt der Interessen des Jubilars:
Advances in Comparative and Environmental Physiology provides comprehensive, integrated reviews giving sound, critical, and provocative summaries of our present knowledge in environmental and comparative physiology, from the molecular to the organismic level.
There can be little doubt that, to use the parlance of the advertising world, the elasmobranch fishes have a "e;high profile image"e; in today's world.
The picture on the following page is being reproduced here, at the request of the partici- pants in the Advanced Research Workshop "e;Amino Acid Availability and Brain Function in Health and Disease"e;.
Medical Parasitology is primarily intended to be an illustrated textbook which provides a review ofthe most important species ofparasite which occur in man; their areas ofdistribution, morphology and development, the typical disease symptoms resulting from infection, epidemiology and also methods of detection and indications for therapy.
Genetic constraints on adaptive evolution can be understood as those genetic aspects that prevent or reduce the potential for natural selection to result in the most direct ascent of the mean phenotype to an optimum.
Honeybees are as small as flies or as large as hornets, nesting in nar- row cavities of trees and rocks or in the open on large limbs of trees 30 m above ground.
From the Foreword: "e;Anyone who has glimpsed a sample of soil animals, especially the soil arthropods, through the binocular microscope will never forget the fascination of their abundant shapes and structures .
The development of the breast-shoulder apparatus in the Marsupialia was inves- tigated and compared with the conditions in Monotremata and Placentalia.
This monograph has been written in the hope that it will prove of value to medical students and clinicians, to Honours undergradu- ates in appropriate branches of the natural sciences, and to repro- ductive biologists in general.
The recent symposium and the appearance of this new book on Drugs Affecting Lipid Metabolism take place at a very unusual time for the development of this area.
The impacts of specifically experienced external and internal environments upon phylogenetically established pathways of ontogenetic development seem to be responsible for the intra-species variation of organisms.
"e;Instead of dirt and poison we have rather chosen to fill our hives with honey and wax; thus furnisning mankind with the two noblest of things, which are sweetness and light"e;.
