Society Information

Preface

Society Information     

International Society of Chronobiology: Membership Information

The International Society for Chronobiology has as its aims, furthering the study of temporal changes in living matter, including biological rhythms in development and ageing in individuals and populations; studying and defining the mechanisms of temporal changes; fostering practical applications for chronobiological findings to mankind in basic and applied biology, physiology, work hygiene and the medical sciences; promoting education in and wide understanding of chronobiology; and furthering contact between scientists in the field and providing a forum for practitioners of chronobiology.     

International Society of Chronobiology: Membership Information

Most variables of interest in laboratory medicine show predictable changes with several frequencies in the span of time investigated. The waveform of such nonsinusoidal rhythms can be well described by the use of multiple components rhythmometry, a method that allows fitting a linear model with several cosine functions. The method, originally described for analysis of longitudinal time series, is here extended to allow analysis of hybrid data (time series sampled from a group of subjects, each represented by an individual series). Given k individual series, we can fit the same linear model with m different frequencies (harmonics or not from one fundamental period) to each series. This fit will provide estimations for 2m + 1 parameters, namely, the amplitude and acrophase of each component, as well as the rhythm-adjusted mean. Assuming that the set of parameters obtained for each individual is a random sample from a multivariate normal population, the corresponding population parameter estimates can be based on the means of estimates obtained from individuals in the sample. Their confidence intervals depend on the variability among individual parameter estimates. The vari-ance-covariance matrix can then be estimated on the basis of the sample covariances. Confidence intervals for the rhythm-adjusted mean, as well as for the amplitude-acrophase pair, of each component can then be computed using the estimated covariance matrix. The p-values for testing the zero-amplitude assumption for each component, as well as for the global model, can finally be derived using those confidence intervals and the t and F distributions. The method, validated by a simulation study and illustrated by an example of modeling the circadian variation of heart rate, represents a new step in the development of statistical procedures in chronobiology.     

International Society of Chronobiology: Membership Information

The International Society for Chronobiology has as its aims, furthering the study of temporal changes in living matter, including biological rhythms in development and ageing in individuals and populations; studying and defining the mechanisms of temporal changes; fostering practical applications for chronobiological findings to mankind in basic and applied biology, physiology, work hygiene and the medical sciences; promoting education in and wide understanding of chronobiology; and furthering contact between scientists in the field and providing a forum for practitioners of chronobiology.     

The Precautionary Principle in the Information Society

The Precautionary Principle aims to anticipate and minimize potentially serious or irreversible risks under conditions of uncertainty. Thus it preserves the potential for future developments. It has been incorporated into many international treaties and pieces of national legislation for environmental protection and sustainable development. However the Precautionary Principle has not yet been applied systematically to novel Information and Communication Technologies (ICTs) and their potential environmental, social, and health effects. In this article we argue that precaution is necessary in this field and show how the general principle of precaution can be put in concrete terms in the context of the information society. We advocate precautionary measures directed towards pervasive applications of ICT (Pervasive Computing) because of their inestimable potential impacts on society.     

《堪萨斯昆虫学会志》简介(英文)

The Journal of the Kansas Entomological Society publishes original research in all areas pertaining to entomology, as well as works on other arthropods (e.g., Arachnida, Myriapoda).     

《堪萨斯昆虫学会志》简介

The Journal of the Kansas Entomological Society publishes original research in all areas pertaining to entomology, as well as works on other arthropods (e.g., Arachnida,Myriapoda).A highly ranked