I discuss the problem of realizing families of complex orientable homology theories as families of E ∞-ring spectra, including a recent result of Jacob Lurie emphasizing the role of p-divisible groups. A few years ago, I wrote a paper [10] discussing a realization problem for families of Landweber exact spectra. Since Jacob Lurie [27] now has a major positive result in this direction, it seems ...

I comment on possible relations of Gribov’s ideas on mechanism of confinement with some phenomena in QCD and in supersymmetric gauge theories. a To be published in the Boris Ioffe Festschrift ’At the Frontier of Particle Physics / Handbook of QCD’, ed. M. Shifman (World Scientific, Singapore, 2001). Based on the talks given at workshops “Challenges in QCD”, Kfar Giladi, Israel, June 20-23, 1999...

A brief review of current approaches to active feedback control of the fluctuations arising in turbulent flows is presented, emphasizing the mathematical techniques involved. Active feedback control schemes are categorized and compared by examining the extent to which they are based on the governing flow equations. These schemes are broken down into the following categories: adaptive schemes, s...

9s. 6d.) London: Mills & Boom, 19,64. THIS well produced book has an informal and friendly approach and is designed especially for girls who will soon leave school. It starts with the family in the home and considers personal hygiene, the house, heating and ventilation, water supplies and sanitary services. It has three well-informed and balanced chapters on food, on food poisoning and on the h...

Often, the information is sensitive or private in nature and these sensitive data when mined violates the privacy of the individuals. Privacy preserving data mining (PPDM) mines the data but intends to preserve the privacy of susceptible data without ever actually seeing it. This paper recaps the important techniques in PPDM like anonymization, perturbation and cryptography. Nowadays, data mini...

despite wide-range of studies in the theories of the entrepreneurship field, few studies have offered a pervasive conceptual model or a general consensus of the existing theories. hence, this paper attempts to extend a comprehensive principle on entrepreneurship. in general, there are two common interpretations of the term ‘entrepreneurship’. one of the common views is schumpeterian, emphasizin...

The human mind is filled with evolved decision mechanisms designed to meet adaptively important goals. In this article we lay out a framework for studying those mechanisms from the perspective of evolutionary psychology, emphasizing the importance of multiple influences of the environment on shaping the decision strategies and their operation. These strategies often take the form of simple heur...

This paper describes the GE-CMU TIPSTER/SHOGUN system as configured for the TIPSTER 24-month (MUC-5) benchmark, and gives details of the system's performance on the selected Japanese and English texts. The SHOGUN system is a distillation of some of the key ideas that emerged from previous benchmarks and experiments, emphasizing a simple architecture in which the focus is on detailed corpus-base...

In recent years, categorists have come up with some very interesting ways of looking at algebraic constructions and algebraic objects. But most of what they write on this is technical and aimed at other categorists. I shall sketch some of these ideas here, emphasizing concrete examples, for the algebraist with a reasonable foundation in category theory (familiarity with adjoint functors and col...