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Viewpoint Left ventricular torsion: feeling the heat (pages 71–72) Excitatory amino acid receptors in the dorsomedial hypothalamus are involved in the cardiovascular and behavioural chemoreflex responses (pages 73–84) Maturation-related changes in the pattern of renal sympathetic nerve activity from fetal life to adulthood (pages 85–93) Angiotensin AT1(More)
We introduce a discrete-time fractional calculus of variations on the time scale hZ, h > 0. First and second order necessary optimality conditions are established. Examples illustrating the use of the new Euler-Lagrange and Legendre type conditions are given. They show that solutions to the considered fractional problems become the classical discrete-time(More)