Why the sunspot cycle is double peaked

Many sunspot cycles are double peaked. In 1967 Gnevyshev suggested that actually all cycles have two peaks generated by different physical mechanisms, but sometimes the gap between them is too short for the maxima to be distinguished in indices of the total sunspot activity. Here we show that indeed all cycles have two peaks easily identified in sunspot activity in different latitudinal bands. We study the double peaks in the last 12 sunspot cycles and show that they are manifestation of the two surges of toroidal field - the one generated from the poloidal field advected all the way on the surface to the poles, down to the tachocline and equatorward to sunspot latitudes, and another one generated from the poloidal field diffused at midlatitudes from the surface to the tachocline and transformed there into toroidal field. The existence of these two surges of toroidal field is due to the relative magnitudes of the speed of the large-scale solar meridional circulation and the diffusivity in the solar convection zone which are estimated from geomagnetic data.Comment: In press in ISRN Astronomy and Astrophysic

Human rights and justice in a multicultural world

This paper intends to discuss some contemporary issues on human rights and democracy related to the concept of justice. Is the set of individual rights that is assumed by western democracies really universal? If so, how are they supposed to be interpreted? On the other side if I take into account the “other” and pluralism in a serious way how to conciliate different concepts of justice? Taking Jacques Derrida’s approach of justice as its standpoint this paper aims to stress the difficulty to achieve a unique concept of justice as well as to think justice in the sphere of international law and the problem of ensuring human rights in the international order. Western democracies has becoming more and more multiethnic and multicultural and the set of rights that is at the center of the legal order has to be interpreted in a dialogical sense, one that assumes difference and plurality as its starting point. The plurality of conceptions of the good and the impossibility of establishing a unique concept of justice demands the re-creation of a democratic sphere where the dissent and the conflict could be experienced and, at the same time, the legal order needs to ensure individual and group rights against majority’s dictatorship. The main goal of this paper is to re-think the interpretation of law in a multicultural scenario in which it is not possible to have only one criteria of justice and difference and pluralism are envisaged are values themselves

Teaching English language learner students in US mainstream schools: Intersections of language, pedagogy, and power

This study explored to what extent two groups of mainstream teachers in the midwestern region of the USA with differing degrees of English Language Learner (ELL) specific universitypreparation reportedly engaged in practises that incorporated the native languages (L1) of ELL students in instruction. The study further examined specific strategies reported by mainstream teachers in promoting L1 use in instruction as well as challenges identified in implementing this practise. The study utilized a mixed-method design that included analyses of survey data from a quantitative study (n=227) and qualitative analyses of teacher discourse from course documents and open-ended survey questions. Findings indicated that while both groups of teachers reportedly engaged in practises that promoted L1 use in instruction to some extent, teachers with at least three courses of ELL-specific university preparation appeared to engage in these practises to a much greater extent than those without such preparation. This paper explores the implications of results from this study for teacher education programmes in the USA with the responsibility of preparing teachers to effectively serve growing numbers of culturally and linguistically diverse student populations

Leveraging Social Networks in Direct Services: Are Foundations Doing All They Can?

· Social networks are critical to physical and mental health, and they shape how people see themselves and their possible futures. · Social networks represent an under-leveraged resource in social services’ efforts to alleviate poverty and other social challenges. · Foundations may be unintentionally creating barriers to practice that leverages social networks by incentivizing individually-focused, highly specific services delivered in standardized, replicable ways. · “Network-oriented” practice can help craft a new way forward that threads the needle between everything-is-different-for-everyone and everything- is-the-same-for-everyone. · By focusing funding on efforts that build and support social networks, foundations can deepen and sustain the impact of their funding

The life-course transitions of young women in a Maltese context

This study analyzed how a cohort of eight young women who underwent certain difficulties whilst at secondary school experienced their transition from secondary school to either work or further education. It explores changes in their perception of events and happenings that they classified as significant to them, and the influence that these changes of perception had on their evolving life-course. While not formally classified as emotionally or behaviorally challenged, all the participants in this study claimed to have had varying depths of difficulty when at secondary school, some alleging that they had been classified as troublesome by their teachers and others claiming to have seen themselves as disruptive in classroom settings. The study was informed by the participants’ voices about how they saw their transitions being forged and has a phenomenological focus.peer-reviewe