Are menstrual knowledge outcome scores similar among rural and urban girls?

Background: Adolescent girls constitute a vulnerable group particularly in India where menstruation is still regarded as something dirty and messy. The cultural and social influences appear to be hurdle for advancement of knowledge of the subject. This results in adverse health outcomes in these adolescent girls. Awareness about menstruation and hygienic practices followed during menstruation are of immense importance as it has a health impact in terms of increased vulnerability to reproductive tract infection.Aim: a) To assess and compare the knowledge regarding menstruation in rural and urban adolescent girls. b) To associate the findings with the selected socio-demographic variables.Subjects and methods: A community based, cross sectional study was undertaken among 715 adolescent schools going girls in the field practice area of the RHTC and UHTC of Department of Community Medicine, District Bareilly. A pre-designed, pretested structured questionnaire was used in the study regarding knowledge and perception of the school going girls regarding menstruation.Results: Majority of the girls had first heard of menstruation and acquired knowledge related to it before attaining menarche (72.45%). The major source of information was from their mothers and sisters (60.6%). Maximum number of girls was not aware of the source of bleeding (53.7%). Statistically significant difference with knowledge scores was seen in girls of higher standards, maternal literacy and father’s occupation.Conclusion: Several factors are known to influence menstrual behaviour, the most significant being maternal literacy and father’s occupation. Imparting knowledge about menstruation and safe practices during menstruation is necessary to mitigate the suffering of adolescent girls. Therefore promoting positive attitudes towards management of menstruation and related problems among the adolescent girls is the need of the hour.Keywords: Menstruation, Knowledge, Perceptio

Impurity Effects on the A_1-A_2 Splitting of Superfluid 3He in Aerogel

When liquid 3He is impregnated into silica aerogel a solid-like layer of 3He atoms coats the silica structure. The surface 3He is in fast exchange with the liquid on NMR timescales. The exchange coupling of liquid 3He quasiparticles with the localized 3He spins modifies the scattering of 3He quasiparticles by the aerogel structure. In a magnetic field the polarization of the solid spins gives rise to a splitting of the scattering cross-section of for `up' vs. `down' spin quasiparticles, relative to the polarization of the solid 3He. We discuss this effect, as well as the effects of non-magnetic scattering, in the context of a possible splitting of the superfluid transition for $\uparrow\uparrow$ vs. $\downarrow\downarrow$ Cooper pairs for superfluid 3He in aerogel, analogous to the A_1-A_2 splitting in bulk 3He. Comparison with the existing measurements of T_c for B< 5 kG, which show no evidence of an A_1-A_2 splitting, suggests a liquid-solid exchange coupling of order J = 0.1 mK. Measurements at higher fields, B > 20 kG, should saturate the polarization of the solid 3He and reveal the A_1-A_2 splitting.Comment: 7 pages, 3 figure

Magnetism in Dense Quark Matter

We review the mechanisms via which an external magnetic field can affect the ground state of cold and dense quark matter. In the absence of a magnetic field, at asymptotically high densities, cold quark matter is in the Color-Flavor-Locked (CFL) phase of color superconductivity characterized by three scales: the superconducting gap, the gluon Meissner mass, and the baryonic chemical potential. When an applied magnetic field becomes comparable with each of these scales, new phases and/or condensates may emerge. They include the magnetic CFL (MCFL) phase that becomes relevant for fields of the order of the gap scale; the paramagnetic CFL, important when the field is of the order of the Meissner mass, and a spin-one condensate associated to the magnetic moment of the Cooper pairs, significant at fields of the order of the chemical potential. We discuss the equation of state (EoS) of MCFL matter for a large range of field values and consider possible applications of the magnetic effects on dense quark matter to the astrophysics of compact stars.Comment: To appear in Lect. Notes Phys. "Strongly interacting matter in magnetic fields" (Springer), edited by D. Kharzeev, K. Landsteiner, A. Schmitt, H.-U. Ye

International Review and Advisory Committee

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