Long-lived coherent spin precession of (3)He-B at low temperatures around 0.2T(c) is a manifestation of Bose-Einstein condensation of spin-wave excitations or magnons in a magnetic trap which is formed by the order-parameter texture and can be manipulated experimentally. When the number of magnons increases, the orbital texture reorients under the influence of the spin-orbit interaction and the...

We report the fast accumulation of a large number of metastable Cr atoms in a mixed trap, formed by the superposition of a strongly confining optical trap and a quadrupolar magnetic trap. The steady state is reached after about 400 ms, providing a cloud of more than one million metastable atoms at a temperature of about 100 μK, with a peak density of 10 atoms.m. We have optimized the loading pr...

We consider the problem of deriving formulas that capture traps, invariants, and dead-ends in classical planning through polynomial forms of preprocessing. An invariant is a formula that is true in the initial state and in all reachable states. A trap is a conditional invariant: once a state is reached that makes the trap true, all the states that are reachable from it will satisfy the trap for...

Blinking photoluminescence was observed in single TiO2 nanodiscs (NDs) by using a laser scanning confocal microscope (LSCM)-coupled steady-state and ps-time-resolved photoluminescence (PL) spectroscopic system, while it was not significantly observed for TiO2 quantum dots (QDs). Analysis of the PL blinking time trajectories revealed single-exponential kinetics with the average lifetimes of on-s...

The “middle income trap” is a significant theoretical and practical issue closely related to the economic and social transition and sustainable development of a country. This paper explores the essence of the “middle income trap” and ways to avoid it. It reveals that the inner nature of the “middle income trap” lies in the institutional transition dilemma, which results essentially from a lack ...

This paper introduces the notion of approximating asynchronous attractors of Boolean networks by minimal trap spaces. We define three criteria for determining the quality of an approximation: "faithfulness" which requires that the oscillating variables of all attractors in a trap space correspond to their dimensions, "univocality" which requires that there is a unique attractor in each trap spa...

The Venus flytrap (Dionaea muscipula Ellis) captures insects with one of the most rapid movements in the plant kingdom. We investigated trap closure by mechanical and electrical stimuli using the novel charge-injection method and high-speed recording. We proposed a new hydroelastic curvature mechanism, which is based on the assumption that the lobes possess curvature elasticity and are composed...

aim : the aim of the present study was to determine the species and genotypes of cryptosporidium spp. among children with diarrhea by pcr- rflp using the trap-c2 gene. background : cryptosporidium is a globally distributed protozoan parasite and one of the most common causes of infection and diarrhea in humans. patients and methods : four hundred and sixty nine stool samples were collected from...

b a ckground: bait-trapping appears to be a generally useful method of studying fly populations. the aim of this study was to construct a new adult flytrap by some modifications in former versions and to evaluate its applicability in a subtropical zone in southern iran. m e t hods: the traps were constructed with modification by adding some equipment to a polyethylene container (18×20× 33 cm) w...