we separated platelets from whole blood and incorporated them into in-ill and te-99m agents. sn-gha, tropolone, oxine (sulphate) and hmpao were used to diffuse radionuclides into the platelets. the effects of time, temperature, ph of incubation media; volume and concentration of ionophore; and volume and activity of ln-l 13m c13 and te-99m on labeling efficiency were studied.

One of the visions almost excessively quoted in current discussions of what the information infrastructure of the WWW may ultimately turn out to be is Vannevar Bush’s article ”As we may think” written in 1945, and thus quite some time before the advent of computers as we know them today. In fact, Bush’s vision concerns the organization of information much more than the technical means and instr...

Why do we represent the world around us using causal generalizations, rather than, say, purely statistical generalizations? Do causal representations contain useful additional information, or are they merely more efficient for inferential purposes? This chapter considers the second kind of answer: it investigates some ways in which causal cognition might aid us not because of its expressive pow...

Adaptive closed-loop control is used to optimize the lift-to-drag ratio of post-stall separated flow over a NACA 0025 airfoil using multiple amplitudemodulated (AM) or burst-modulated (BM), zero-net-mass-flux (ZNMF) actuators that cover the central 33% span of the airfoil. A simplex optimization approach uses the lift and drag measured by a strain-gauge balance for feedback and searches for the...

A set A ⊆ {1, 2, . . . , n} is said to be k-separated if, when considered on the circle, any two elements of A are separated by a gap of size at least k. We prove a conjecture due to Holroyd and Johnson [3],[4] that an analogue of the Erdős-Ko-Rado theorem holds for k-separated sets. In particular the result holds for the vertex-critical subgraph of the Kneser graph identified by Schrijver [7],...

Interest is arising in the possible use of higher plants as the source of naturally occurring antibiotic substances. The use of higher plants in the treatment of disease is as old as the art of healing itself. Isaiah of Biblical times suggested that a plaster of figs be placed on boils as a treatment of this form of infection. Hyssop and cedarwood were used in the cleansing of lepers. The Orien...

It has become evident (Osborn, 1943; Lucas and Lewis, 1944) that higher plants are potential sources of antibiotic agents. Several investigators (Little and Grubaugh, 1946; Atkinson and Rainsford, 1946; Sanders, Weatherwax, and McClung, 1945) have reported antibiotic effects of juices and of crude extracts of plants on various microorganisms. The active materials can be separated in some degree...

Various traditions within developmental science and psychology have concentrated on either personal or collective correlates as manifestations of well-being. Our claim is that the well-being of any one person is highly dependent on the well-being of her relationships and on the community in which she resides ~Nelson & Prilleltensky, 2005; Prilleltensky, Nelson, & Peirson, 2001!. Well-being may ...