The early literature on the effect of the polypeptide antibiotics subtilin and nisin on bacterial spores has been reviewed by Campbell and O'Brien (1955). Most of the early reports have indicated that subtilin acts as a sporostatic agent. Other reports have shown, however, that the spores of several bacterial species will germinate in the presence of subtilin and are subsequently killed by the ...

This article describes a new class of end-effectors that can be used with robotic and material handling devices for grabbing and holding deformable objects with undefined shapes such as sacks and bags. These end-effectors can grab and hold filled sacks from any point on the sack and regardless of the sack orientation and position. The first prototype end-effector, designed for U.S. Postal Servi...

Chapter No.: 4 Title Name: Comp. by: Date: 30 Jul 2013 Time: 06:32:39 PM Stage: WorkFlow: Page Number: 29 NK Cells in Peripheral Blood and the Endometrium Gavin Sacks, Conjoint Associate Professor, Clinical Director 1 University of New South Wales , Sydney , NSW , Australia 2 IVF Australia , Sydney , NSW , Australia 3 Staff Specialist, St George Hospital , S...

We show that Sacks’ and Shoenfield’s analogs of jump inversion fail for both ttand wttreducibilities in a strong way. In particular we show that there is a ∆2 set B >tt ∅ ′ such that there is no c.e. set A with A′ ≡wtt B . We also show that there is a Σ 0 2 set C >tt ∅ ′ such that there is no ∆2 set D with D′ ≡wtt C . §

We propose a new mathematical engine for reasoning with abstraction to support engineering design. The new Quantity Lattice (ql) will be built on the foundation of the existing Quantity Lattice by Reid Simmons Simmons, 1986], the Bounder inequality reasoner by Elisha Sacks Sacks, 1987b], and the Minima hybrid real/sign algebra by Brian Williams Williams, 1991]. The new ql supports representatio...

This note derives the stationary behavior of idealized TCP congestion avoidance. More speci cally, it derives the stationary distribution of the congestion window size if loss of packets are independent events with equal probability. The mathematical derivation uses a uid ow, continuous time, approximation to the discrete time process (Wn), where Wn is the congestion window after the n-th packe...

Given an ideal I on ω let a(I) (ā(I)) be minimum of the cardinalities of in nite (uncountable) maximal I-almost disjoint subsets of [ω]. We show that a(Ih) > ω if Ih is a summable ideal; but a(Z~ μ) = ω for any tall density ideal Z~ μ including the density zero ideal Z. On the other hand, you have b ≤ ā(I) for any analytic P -ideal I, and ā(Z~ μ) ≤ a for each density ideal Z~ μ. For each ideal ...

TAKEDA, K., NAKAI, H., HAGIWARA, H., TADA, K., SHOWS, T.S., BYERS, MG. and MYEROWITZ, R. Fine Assignment of R-Hexosaminidase A a-Subunit on 15g23-q24 by High Resolution In Situ Hybridization. Tohoku J. Exp. Med., 1990, 160 (3), 203-211 Tay-Sacks disease results from mutation in the gene encoding /3-hexosaminidase A a-Subunit. Although some reports have suggested the locus on 15q, we tried to de...

The Borel Conjecture is the statement that C = [R]<ü,i , where C is the class of strong measure zero sets; it is known to be independent of ZFC. The Generalized Borel Conjecture is the statement that C = [R]<c. We show that this statement is also independent. The construction involves forcing with an «2-stage iteration of strongly proper orders; this latter class of orders is shown to include s...