The work of Herlihy and Plotkin on universal shared objects shows how to implement arbitrary wait-free read-modify-write objects from a bounded number of shared read/write bits. deterministically in a concurrent setting using only atomic shared variables. We present a simple randomized algorithm for 2-process wait-free test-and-set, implemented with two 4-valued single writer single reader atom...

We propose a feasible optical setup allowing for a loophole-free Bell test with efficient homodyne detection. A non-Gaussian entangled state is generated from a two-mode squeezed vacuum by subtracting a single photon from each mode, using beam splitters and standard low-efficiency single-photon detectors. A Bell violation exceeding 1% is achievable with 6 dB squeezed light and a homodyne effici...

We present a scheme to establish nonclassical correlations in the motion of two macroscopically separated massive particles without resorting to entanglement in their internal degrees of freedom. It is based on the dissociation of a diatomic molecule with two temporally separated Feshbach pulses generating a motional state of two counterpropagating atoms that is capable of violating a Bell ineq...

The repeated suppression of thoughts in response to cues for their expression leads to forgetting on a subsequent test of cued recall (Anderson & Green, 2001). We extended this effect by using homograph cues and presenting them for free association following suppression practice. Cue-target pairs were first learned under integrating imagery instructions; then in the think/no-think phase student...

Let L be a finitely generated free color Lie superalgebra. We obtain new almost primitive and test elements of L. AMS Subject Classification: 17B01, 17B40

Lead-free selective soldering can result in extended times at high temperatures, which in turn can result in excessive dissolution of exposed copper, such as plated through holes. This phenomenon is more severe with lead-free, since the alloys have higher melting points, hence requiring longer times for the PTH to reach the higher temperatures, and the alloys typically have a greater capacity t...

In rapid alloy solidification the dendrite-growth velocity depends sensitively on the deviations from local interfacial equilibrium manifested by kinetic effects such as solute trapping. The dendrite tip velocityundercooling function was measured in dilute Ni~Zr! over the range 1–25 m/s and 50–255 K using electromagnetic levitation techniques and compared to theoretical predictions of the model...

M any profound philosophical problems have their origin in pure mathematics, problems ranging from the nature and properties of infinity to the limitations of mathematical proof and the meaning of truth itself. But few developments in the history of mathematics have deeper and more diverse philosophical ramifications than Gödel’s incompleteness theorem. The discovery of Gödel’s theorem in the 1...