Disorder Chaos Research Articles

A Lower Level of Entropy in Circadian Rhythm of the Sinus R‐R Intervals Suggests a Prevalence of the Cardiac Sympathetic Regulation in Early Physiological Pregnancy

The study estimates the unpredictable disorder (chaos) within the 24 h pattern of sinus R‐R intervals (SRRI) in clinically healthy pregnant women (CHPW) and clinically healthy non‐pregnant women (CHNPW), in order to evaluate the early gestational changes in neurovegetative cardiac pacing. SRRI were provided by the 24‐h Holter ECG of 10 CHPW and 10 CHNPW. SRRI were investigated by descriptive conventional statistics by means of the Time and Frequency Domain Analysis, and subsequently, in their chaotic component by means of entropy analysis. Both the SRRI and entropy were tested via the Cosinor method to better decipher whether or not the periodic disorder in heart rate variability is modified in pregnancy as a result of a gestational tonic resetting of the cardiac sympatho‐vagal regulation. Cosinor analysis documented that the circadian rhythm of both the SRRI and entropy were preserved in CHNPW and CHPW. However, the circadian rhythm of SRRI and entropy in CHPW exhibited a significantly decreased 24 h mean. Via the analysis of the rhythmicity of entropy, this study has documented that the chaos in the 24 h pattern of SRRI is less prominent in CHPW than in CHNPW. Such a reduction of level in the deterministic periodic chaos of heart rate variability provides evidence that, in early pregnancy, a tonic elevation of the sympathetic activity regulates cardiac pacing.

Temperature and Disorder Chaos in Low Dimensional Directed Paths

The responses of a $1+\epsilon $ dimensional directed path to temperature and to potential variations are calculated exactly, and are governed by the same scaling form. The short scale decorrelation (strong correlation regime) leads to the overlap length predicted by heuristic approaches; its temperature dependence and large absolute value agree with scaling and numerical observations. Beyond the overlap length (weak correlation regime), the correlation decays algebraically. A clear physical mechanism explains the behavior in each case: the initial decorrelation is due to `fragile droplets,' which contribute to the entropy fluctuations as $\sqrt{T}$, while the residual correlation results from accidental intersections of otherwise uncorrelated configurations.

INTRODUCTION TO OPPORTUNITY CYBERNETICS AND DECISION-HARMONIZING THEORY IN ENTERPRISES' MULTIPLE VENTURE MANAGEMENT

This paper introduces a new concept of risk management for modern enterprises so-called opportunity cybernetics and decision-harmonizing theory. This theory was developed based on new challenges of which the enterprises face in the market, such as reverse correlativity, bubbled falsehood, virtual exchange, disorder chaos and unstable variation. The objective of opportunity cybernetics is to achieve the optimal combined profit for the enterprises with multiple venture management through a dynamic modeling control. The successful enterprises should maintain a harmony of chaos in uncertain business events and seek a compromise solution in competitive market. The paper also uses a giant petroleum company to show how to implement the opportunity cybernetics and decision-harmonizing theory in the real world.

Antony, Fulvia, and the Ghost of Clodius in 47 B.C.

The creation of a political image based at best on a tenuous reality is a fragile and delicate process. None knew it better than Gaius Julius Caesar. Early in his career, he had fostered the belief that he was the heir of the ‘true’Marian/popularistradition with some credibility and lasting success. He presented himself as the great general in the Gallic commentaries and for good reasons this image too gained widespread popularity. There were other important but sometimes less convincing messages to follow. Thecommentariion the civil war sought passionately to justify his part in the outbreak of hostilities: this was the published form of a process his intermediaries had begun in the first months of hostilities whereby they stressed his respect for peace and the traditional order, even when he himself was busy ignoring both. In an effort to reinforce this ‘constitutional’ regard, Caesar returned to Rome from Spain in 49 to establish a ‘properly elected’ government with himself and P. Servilius Isauricus as consuls; the correct number of praetors (all eligible to hold the office), aediles, and quaestors. The dictatorship was cast aside after a mere eleven days; Rome was to function as it always had. The uprising of Marcus Caelius Rufus and Titus Annius Milo in 48 B.C. ruined this admirable picture and brought home to Caesar the realities of attempting to dominate Rome by leaving the constitution in its traditional form and hoping for the best from the supporters he had entrusted with office. Moreover, the chaos of civil war and urban disorder combined to allow others to project their own policies and power struggles.