T subject of probability was, of course, motivated initially by its applications. However, there have been earnest attempts to convert it into a branch of pure mathematics, a development suggested by the axiomatic basis of the theory and reinforced by a preoccupation with possible measure-theoretic pathologies. Excesses in this direction led to a reaction, marked by the appearance of the journa...

F OLLOWING THE observations of Thomsen and Friedenreich1 that red cells became panagglutinable in compatible human serum after treatment with certain bacterial filtrates, other agents (viruses:2 periodate ions,3 and trypsin4) have been found capable of producing this phenomenon. During an investigation of the mechanisms of hemolysis in paroxysnial nocturnal hemo-globinuria (PNH) , a series of a...

Nitric oxide (NO) is produced in the vascular endothelium and is a potent vasodilator substance that participates in the regulation of local vascular tone. Exercise causes peculiar changes in systemic and regional blood flow, i.e. an increase of systemic blood flow and a redistribution of local tissue blood flow, by which the blood flow is greatly increased in the working muscles, whereas it is...

Robots in industry During the last two decades, robots have gone from exotic to commonplace in the manufacturing industries. As companies strive to gain competitive advantage, mechanization of repetitive tasks has been a primary means of increasing productivity and reducing cost. The impact of robotization is now affecting the world economy [1]. While not the first to develop robotics, Japan ha...

9. Korecky B, Rakusan K: Growth of cardiac muscle cells during the life span of rat (abstr). Circulation 46: 49, 1973 10. Linzbach AJ: Die Muskelfaserkonstante und das Wachtumgesetz der menschlichen Herzkammer. Virchows Arch [Pathol Anat] 318: 575618,1950 11. Murakam T: Histometrical and histological changes of the skeletal muscle in neuromuscular disorders —an autopsy study. Acta Pathol Jap 24...

In this issue we acknowledge the help of over 2,500 evaluating the importance of the research question and in reviewers who produced more than 10 000 reports since helping targeting key questions. we took office in June 1995. There is only limited What does this mean? We think it means that young information on the quality of such reports and on the way reviewers should be recruited by editors ...

Introduction. Doob [3, p. 29],2 has shown that if ()= [U, 11, u] is a probability space (i.e. 11 is a cr-field of subsets of a set U and u is a countably additive non-negative measure defined on 11, normalized by the condition u(U) = l) and 1l0 is a o--subfield of 11, and y is an re-dimensional random variable mapping U into an re-dimensional Euclidean space X, then y possesses a conditional di...

T he billions of synaptic connections in the brain are constantly remod-eled in response to changes in neu-ral activity, a phenomenon known as synap-tic plasticity. These alterations in synapse form and function allow neurons to store and relay information, and therefore provide a cellular basis for learning and memory. Yukiko Goda began studying how neu-rons alter the strength of their synapse...

The dynamic and interactive SUGARSCAPE simulation is adapted to represent agent-based relationship marketing models in business-to-business exchanges. Computer-generated selling agents operate in complex environments using relationship marketing approaches that may or may not be uniformly distributed inside their organizations. The intricate nature of these models also allows for diverse combin...

18. von der Groeben J, Fisher DD, Toole JG: Temporospatial frequency distribution of P, QRS, and T in normal man and woman. Am Heart J 75: 487, 1968 19. Ishikawa H: Sex and age differences in the Frank vectorcardiograms of normal Japanese adults. Jap Circ J 37: 543, 1973 20. Simonson E: The effect of age on the electrocardiogram. Am J Cardiol 29: 64, 1972 21. McCall BW, Wallace AG, Estes EH Jr:...