Results 281 to 290 of about 828,136 (336)
Some of the next articles are maybe not open access.
Prucalopride in Gastroparesis: A Randomized Placebo-Controlled Crossover Study.
American Journal of Gastroenterology, 2019OBJECTIVES Prokinetics are considered the preferred treatment option for gastroparesis, but evidence of their efficacy is scarce. Prucalopride, a selective 5-hydroxytryptamine 4 receptor agonist used in the treatment of constipation, is able to enhance ...
F. Carbone +10 more
semanticscholar +1 more source
Developing Mixed Methods Crossover Analysis Approaches
Journal of Mixed Methods Research, 2020Onwuegbuzie and Hitchcock (2015) provided an initial framework for conceptualizing and conducting advanced-level mixed analysis approaches. In the present article, we build on these efforts by altering the framework to focus on crossover analyses, which ...
J. Hitchcock, A. Onwuegbuzie
semanticscholar +1 more source
A crossover operator for improving the efficiency of permutation-based genetic algorithms
Expert systems with applications, 2020Crossover is one of the most important operators in a genetic algorithm by which offspring production for the next generation is performed. There are a number of crossover operators for each type of chromosome representation of solutions that are closely
B. Koohestani
semanticscholar +1 more source
BCS–BEC crossover in cold atomic and in nuclear systems
, 2020We review the BCS (Bardeen–Cooper–Schrieffer)–BEC (Bose–Einstein condensation) crossover phenomenon discussed in an ultracold Fermi atomic gas and a neutron superfluid in the low-density crust regime of a neutron star.
Y. Ohashi, H. Tajima, P. V. Wyk
semanticscholar +1 more source
Crossover in Grammatical Evolution
Genetic Programming and Evolvable Machines, 2003Summary: We present an investigation into crossover in Grammatical Evolution that begins by examining a biologically-inspired homologous crossover operator that is compared to standard one and two-point operators. Results demonstrate that this homologous operator is no better than the simpler one-point operator traditionally adopted. An analysis of the
Michael O'Neill 0001 +3 more
openaire +1 more source
Spin Crossover by Encapsulation
Journal of the American Chemical Society, 2009Encapsulation by synthetic hosts can transform the spin states of square planar Ni(II)(acen) and Co(II)(tap) complexes. Upon encapsulation, the red Ni(II) diamagnetic state was converted into a green paramagnetic state, whereas the Co(II) low spin (S = 1/2) state was changed into a coupled (S = 1/2 and S = 3/2) state. The host cages are noninnocent and
Kosuke Ono +6 more
openaire +2 more sources
Quantification of scaling exponents and crossover phenomena in nonstationary heartbeat time series.
Chaos, 1995Chung-Kang Peng +3 more
semanticscholar +1 more source