Many of the haemopoietic cell growth factors have now been purified to homogeneity and their structural genes cloned. Methods are also now available for obtaining pure populations of haemopoietic cells. The use of such cells, in combination with pure growth factors, has provided intriguing information about the biological activities and mode of action of the factors in faciliating survival, proliferation and differentiation of the haemopoietic cells.

We formulate Suppes predicates for various kinds of space-time: classical Euclidean, Minkowski's, and that of General Relativity. Starting with topological properties, these continua are mathematically constructed with the help of a basic algebra of events; this algebra constitutes a kind of mereology, in the sense of Lesniewski. There are several alternative, possible constructions, depending, for instance, on the use of the common field of reals or of a non-Archimedian field. Our approach was inspired by the work of Whitehead, though our (...) philosophical stance is completely different from his. The structures obtained are idealized constructs underlying extant, physical space-time. (shrink)

We propose a formalization of Meinong's theory of objects with the help of Hilbert's $\epsilon$-symbol and a paraconsistent logical system, with an eye towards its application in an axiomatization of the natural sciences.

THERE ARE TWO CONCEPTS OF MIRACLE: AS (A) THE VIOLATION OF A NATURAL LAW, AND AS (B) A STRIKING COINCIDENCE WITHIN NATURAL LAW. DIFFICULTIES IN (A) HAVE BEEN WIDELY DISCUSSED, E.G., BY R SWINBURNE. THOSE IN (B) HAVE NOT. I ARGUE THAT IF DIFFICULTIES IN (A) FORCE A RETREAT TO (B), THEN A PLACE MUST BE FOUND FOR A GOD TO ACT TO PRODUCE (B). SEVERAL POSSIBILITIES ARE CONSIDERED; NONE ARE FOUND SATISFACTORY EXCEPT POSSIBLY THE GOD INFLUENCING UNNOTICED AN ANIMATE (...) OBJECT. I CONCLUDE WITH A NEW AND FAVORABLE LOOK AT HUME’S CONTRARY MIRACLES ARGUMENT. (shrink)

Founded on Eastern wisdom traditions, the martial art of Aikido focuses on moral and spiritual development through psycho-physiological harmonization of the mind, body and spirit. The purpose of this article is to explain the effects of Aikido practices on enhancing communication and mindfulness in entrepreneurial contexts. In addition, the article introduces research on Aikido aimed at enhancing cross-organizational and cross-cultural exchanges where unmediated, proxemic interpersonal interactions are supplanted by virtual (synchronous and asynchronous) communications media, such as e-mail and voice mail.