Overview

Although in the past the Swedish anatomical schools gave one of the first impulses to the study of biorhythms, this subject has never been a favourite matter of mor­ phological investigations. The proposal of the organizing committee at the 8th Inter­ national Anatomical Congress to organize a symposium on rhythmic research was willingly accepted. It was felt that as morphology is growing to be more and more an experimental discipline, biorhythms should be considered. It is gratefully acknowledged that investigators with great experience in biologic rhythms were prepared to take part in this symposium. Their different fields of research, physiology, biology, embryology and clinical, indicate the importance of rhythmic variations and mathematicians show how results gained have to be treated in a correct statistical fashion. There are the processes of cell multiplication, regeneration and growth, which have been proved to be rhythmic. The analyses of mitoses show to what extent such strong interventions as adrenalectomy, hypophysectomy etc. have been misinterpreted and delivered severally contradictory results when the rhythmic variations are not considered. The observation of tissues collected throughout 24 hours contributes to the much debated problem of ""Amitosis"" and also revealed a definite rhythm of DNA. In connection with this is the uptake and incorporation of DNA-precursors which occur rhythmically. In the vast number of precursor experiments which frequently vary strongly in their results, circadian changes have hardly been considered until now.

Full Product Details

Author:   Heinz V. Mayersbach
Publisher:   Springer-Verlag Berlin and Heidelberg GmbH & Co. KG
Imprint:   Springer-Verlag Berlin and Heidelberg GmbH & Co. K
Dimensions:   Width: 17.00cm , Height: 1.10cm , Length: 24.40cm
Weight:   0.550kg
ISBN:  

9783540037446

ISBN 10:   3540037446
Pages:   198
Publication Date:   01 January 1967
Audience:   Professional and scholarly ,  Professional & Vocational
Format:   Paperback
Publisher's Status:   Active
Availability:   Out of stock  
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Table of Contents

Circadiane Rhythmik.- Circadian System Phase.- Developmental Rhythms.- Validity and Efficiency in the Design of Transverse Physiologic Periodicity Experiments.- Seasonal Influences on Biological Rhythms of Standardized Laboratory Animals.- Autoradiographic Investigations with 3-H-thymidine on the Influence of the Diurnal Rhythm on Cell Proliferation Kinetics.- The Circadian Rhythm of Nucleic Acids.- Circadian Changes of the DNA-content in Rat Liver Cells as Revealed by Histophotometric Methods.- Amitose et fusion nucleaire au cours du rhythme circadien.- Technical Factors Involved in the Histochemical Determination of the Circadian Changes of Liver Glycogen.- Circadian Phase Differences of Lyo- and Desmoenzymes.- Circadian Ultrastructural Changes in Liver Cells.- The Effects of the Presence or Absence of the Pituitary Gland on the Daily Rhythmicity of Mitotic Rates in Urodele Larval Tissues.- Effect of Adrenalectomy, Adrenal Medullectomy and Hypophysectomy on the Daily Mitotic Rhythm in the Corneal Epithelium of the Rat.- Circadian Rhythms in Growth Processes.- Constancy and Rhythm.- Automation in Biological Rhythm Research.

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