"Sulpha-Combination"--A New Chemotherapeutic Principle

Sulpha and Sulphone Drugs

A New Selection Principle

For topological spaces X, various special families of covers have been extensively studied in the literature, in a framework called selection principles, see the surveys [8, 4, 12]. The main types of covers are defined as follows. Let U be a cover of X. We say that U is a large (respectively, ω-, γ-) cover of X if: (1) Each x ∈ X is covered by infinitely many U ∈ U ; (2) Each finite F ⊆ X is co...

A new condensation principle

We generalize ∇(A), which was introduced in [Sch∞], to larger cardinals. For a regular cardinal κ > א0 we denote by ∇κ(A) the statement that A ⊆ κ and for all regular θ > κ, {X ∈ [Lθ[A] ] <κ : X ∩ κ ∈ κ ∧ otp(X ∩ Ord) ∈ Card} is stationary in [Lθ[A] ] . It was shown in [Sch∞] that ∇א1(A) can hold in a set-generic extension of L. We here prove that ∇א2(A) can hold in a set-generic extension of L...

A new discrepancy principle

The aim of this note is to prove a new discrepancy principle. The advantage of the new discrepancy principle compared with the known one consists of solving a minimization problem (see problem (2) below) approximately, rather than exactly, and in the proof of a stability result. To explain this in more detail, let us recall the usual discrepancy principle, which can be stated as follows. Consid...

A new uncertainty principle

By examining two counterexamples to the existing theory, it is shown, with mathematical rigor, that as far as scattered particles are concerned the true distribution function is in principle not determinable (indeterminacy principle or uncertainty principle) while the average distribution function over each predetermined finite velocity solid-angle element can be calculated.