Effects of Anomalous Magnetic Moment in the Quantum Motion of Neutral Particle in Magnetic and Electric Fields Produced by a Linear Source in a Conical Spacetime

In this paper we analyse the effect of the anomalous magnetic moment on the non-relativistic quantum motion of a neutral particle in magnetic and electric fields produced by linear sources of constant current and charge density, respectively.Comment: 17 pages, no figur

Changes In Motor Behavior During Pregnancy In Rats: The Basis For A Possible Animal Model Of Restless Legs Syndrome [alterações No Comportamento Motor De Ratas Prenhes: Bases Para Um Possível Modelo Animal Da Síndrome Das Pernas Inquietas]

PURPOSE: Pregnant women have a 2-3 fold higher probability of developing restless legs syndrome (RLS – sleep-related movement disorders) than general population. This study aims to evaluate the behavior and locomotion of rats during pregnancy in order to verify if part of these animals exhibit some RLS-like features. METHODS: We used 14 female 80-day-old Wistar rats that weighed between 200 and 250 g. The rats were distributed into control (CTRL) and pregnant (PN) groups. After a baseline evaluation of their behavior and locomotor activity in an open-field environment, the PN group was inducted into pregnancy, and their behavior and locomotor activity were evaluated on days 3, 10 and 19 of pregnancy and in the post-lactation period in parallel with the CTRL group. The serum iron and transferrin levels in the CTRL and PN groups were analyzed in blood collected after euthanasia by decapitation. RESULTS: There were no significant differences in the total ambulation, grooming events, fecal boli or urine pools between the CTRL and PN groups. However, the PN group exhibited fewer rearing events, increased grooming time and reduced immobilization time than the CTRL group (ANOVA, p<0.05). CONCLUSION: These results suggest that pregnant rats show behavioral and locomotor alterations similar to those observed in animal models of RLS, demonstrating to be a possible animal model of this sleep disorder.3610436441Allen, R.P., Walters, A.S., Montplaisir, J., Hening, W., Myers, A., Bell, T.J., Restless legs syndrome prevalence and impact: REST general population study (2005) Arch Intern Med, 165 (11), pp. 1286-1292McCrink, L., Allen, R.P., Wolowacz, S., Sherrill, B., Connolly, M., Kirsch, J., Predictors of health-related quality of life in sufferers with restless legs syndrome: A multi-national study (2007) Sleep Med, 8 (1), pp. 73-83Trenkwalder, C., Paulus, W., Restless legs syndrome: Pathophysiology, clinical presentation and management (2010) Nat Rev Neurol, 6 (6), pp. 337-346Phillips, B., Young, T., Finn, L., Asher, K., Hening, W.A., Purvis, C., Epidemiology of restless legs symptoms in adults (2000) Arch Intern Med, 160 (14), pp. 2137-2141Manconi, M., Govoni, V., De Vito, A., Economou, N.T., Cesnik, E., Mollica, G., Pregnancy as a risk factor for restless legs syndrome (2004) Sleep Med, 5 (3), pp. 305-308Goodman, J.D., Brodie, C., Ayida, G.A., Restless leg syndrome in pregnancy (1988) BMJ, 297 (6656), pp. 1101-1102Eriksson, L., Edén, S., Holst, J., Lindstedt, G., Von Schoultz, B., Diurnal variations in thyrotropin, prolactin and cortisol during human pregnancy (1989) Gynecol Obstet Invest, 27 (2), pp. 78-83Walters, A.S., Toward a better definition of the restless legs syndrome. The International Restless Legs Syndrome Study Group (1995) Mov Disord, 10 (5), pp. 634-642Lee, K.A., Zaffke, M.E., Baratte-Beebe, K., Restless legs syndrome and sleep disturbance during pregnancy: The role of folate and iron (2001) J Womens Health Gender Based Med, 10 (4), pp. 335-341Garcia-Borreguero, D., Larrosa, O., Granizo, J.J., De La Llave, Y., Hening, W.A., Circadian variation in neuroendocrine response to L-dopa in patients with restless legs syndrome (2004) Sleep, 27 (4), pp. 669-673Manconi, M., Govoni, V., De Vito, A., Economou, N.T., Cesnik, E., Casetta, I., Restless legs syndrome and pregnancy (2004) Neurology, 63 (6), pp. 1065-1069Balendran, J., Champion, D., Jaaniste, T., Welsh, A., A common sleep disorder in pregnancy: Restless legs syndrome and its predictors (2011) Aust N Z J Obstet Gynaecol, 51 (3), pp. 262-264Ekbom, K.A., (1945) Restless legs. Acta Med Scand, 121, pp. 7-123Ekbom, K.A., Restless legs syndrome (1960) Neurology, 10, pp. 868-873Bonduelle, M., Restlessness, J.B., (1953) Bull Med, 67 (12), p. 316Manconi, M., De Vito, A., Economou, N.T., Govoni, V., Casetta, I., Granieri, E., Restless leg syndrome in pregnancy: Preliminary epidemiological results in 130 women (2002) J Sleep Res, 11, pp. 126-149Allen, R.P., Picchietti, D., Hening, W.A., Trenkwalder, C., Walters, A.S., Montplaisi, J., Restless legs syndrome: Diagnostic criteria, special considerations, and epidemiology. A report from the restless legs syndrome diagnosis and epidemiology workshop at the National Institutes of Health (2003) Sleep Med, 4 (2), pp. 101-119Ondo, W.G., He, Y., Rajasekaran, S., Le, W.D., Clinical correlates of 6-hydroxydopamine injections into A11 dopaminergic neurons in rats: A possible model for restless legs syndrome (2000) Mov Disord, 15 (1), pp. 154-158Esteves, A.M., De Mello, M.T., Lancellotti, C.L., Natal, C.L., Tufik, S., Occurrence of limb movement during sleep in rats with spinal cord injury (2004) Brain Res, 1017 (1-2), pp. 32-38Esteves, A.M., Mello, M.T., Squarcini, C.F., Lancellotti, C.L., Comparoni, A., Tufik, S., Sleep patterns over 15-day period in rats with spinal cord injury (2007) Spinal Cord, 45 (5), pp. 360-366Esteves, A.M., Squarcini, C.F., Lancellotti, C.L., Tufik, S., De Mello, M.T., Characteristics of muscle fibers in rats with limb movements during sleep after spinal cord injury (2012) Eur Neurol, 67 (2), pp. 107-115Ondo, W.G., Zhao, H.R., Le, W.D., Animal models of restless legs syndrome (2007) Sleep Med, 8 (4), pp. 344-348Qu, S., Le, W., Zhang, X., Xie, W., Zhang, A., Ondo, W.G., Locomotion is increased in a11-lesioned mice with iron deprivation: A possible animal model for restless legs syndrome (2007) J Neuropathol Exp Neurol, 66 (5), pp. 383-388Baier, P.C., Ondo, W.G., Winkelmann, J., Animal studies in restless legs syndrome (2007) Mov Disord, 22, pp. 459-465Lopes, C., Esteves, A.M., Frussa-Filho, R., Tufik, S., De Mello, M.T., Evaluation of periodic limb movements in a putative animal model of restless leg syndrome (2012) Mov Disord, 27 (3), pp. 413-420Esteves, A.M., Lopes, C., Frussa-Filho, R., Frank, M.K., Cavagnolli, D., Arida, R.M., Spontaneously hypertensive rats: Possible animal model of sleep-related movement disorders (2013) J Mot Behav, 45 (6), pp. 487-493Howard-Jones, N., A CIOMS ethical code for animal experimentation (1985) WHO Chron, 39 (2), pp. 51-56Long, J.A., Evans, H.M., The oestrous cycle in the rat and its associated phenomena, , Berkeley: University of California1922. (Memoirs of University of California, 6)Mandl, A.M., The phases of the oestrous cycle in the adult white rat (1951) J Exp Biol, 28 (4), pp. 576-584Marcondes, F.K., Bianchi, F.J., Tanno, A.P., Determination of the estrous cycle phases of rats: Some helpful considerations (2002) Braz J Biol, 62 (4A), pp. 609-614Manconi, M., Hutchins, W., Feroah, T.R., Zucconi, M., Ferini-Strambi, L., On the pathway of an animal model for restless legs syndrome (2007) Neurol Sci, 28, pp. S53-60Fukushiro, D.F., Calzavara, M.B., Trombin, T.F., Lopez, G.B., Abílio, V.C., Andersen, M.L., Effects of environmental enrichment and paradoxical sleep deprivation on open-field behavior of amphetamine-treated mice (2007) Physiol Behav, 92 (4), pp. 773-779Earley, C.J., Connor, J.R., Beard, J.L., Malecki, E.A., Epstein, D.K., Allen, R.P., Abnormalities in CSF concentrations of ferritin and transferrin in restless legs syndrome (2000) Neurology, 54 (8), pp. 1698-1700Mizuno, S., Mihara, T., Miyaoka, T., Inagaki, T., Horiguchi, J., CSF iron, ferritin and transferrin levels in restless legs syndrome (2005) J Sleep Res, 14 (1), pp. 43-4

Relativistic quantum dynamics of a charged particle in cosmic string spacetime in the presence of magnetic field and scalar potential

In this paper we analyze the relativistic quantum motion of charged spin-0 and spin-1/2 particles in the presence of a uniform magnetic field and scalar potentials in the cosmic string spacetime. In order to develop this analysis, we assume that the magnetic field is parallel to the string and the scalar potentials present a cylindrical symmetry with their center on the string. Two distinct configurations for the scalar potential, $S(r)$, are considered: $(i)$ the potential proportional to the inverse of the polar distance, i.e., $S\propto1/r$, and $(ii)$ the potential proportional to this distance, i.e., $S\propto r$. The energy spectra are explicitly computed for different physical situations and presented their dependences on the magnetic field strength and scalar coupling constants.Comment: New version with 20 pages and no figure. Some minor revisions and six references added. Accepted for publication in EJP