251,735 research outputs found
Critical pedagogy in hard financial times
No full textPeter Mayo takes issue with education financing not from an economic or technical
viewpoint, but from a philosophical and systemic one, drawing on critical pedagogy.
There is no sense, this article argues, to talk of higher education or its funding without
reference to the capitalist system which the mainstream education discourse reaffirms. The author concludes with an alternative vision of lifelong learning as a social act for the creation and enhancing of democratic spaces, reflected in the ongoing global “Occupy” protests for social equality.peer-reviewe
Modelling of switching dynamics in electrical systems
No full textIn this paper, we use the switched linear differential systems framework [8] to model electrical devices with switching dynamics. Modularity, i.e. independent modelling and incremental combination of complex dynamics, is an important feature of this approach, since we can incorporate new dynamic modes to the bank without altering the existing ones. This makes our approach ideal for describing complex systems (e.g. energy distribution networks). Our modelling approach differs fundamentally from the traditional representation-based theory where the use of a global state space is required
Object drop in L3 acquisition
No full textThe topic of cross-linguistic differences regarding the overt or null expression of arguments has been considered both in first (L1) and second language (L2) acquisition. There is abundant literature on both subject and object drop with different language pairings but the issue has not been considered in third language (L3) acquisition. The main goal of this article is to analyse the L3 interlanguage of Basque-Spanish bilinguals regarding the acceptability and interpretation of null objects. The three languages involved in the study display different semantic requirements for the target structure, with Basque allowing for a null object option across-the-board, Spanish only under certain semantic conditions, and English disallowing it in the standard variety. Two trilingual, one bilingual and a control group (n = 119) rated experimental items embedded in context, presented in a written and aural format on a computer screen. Findings point to the successful acquisition of the target structure, as well as a clear influence of Spanish in the three experimental groups
Modelling approaches for DC-DC converters with switched capacitors
No full textIn this paper we review relevant problems in the modelling of DC-DC converters with switched capacitors. We study several approaches that overcome the exposed modelling difficulties, addressing ideal and nonideal cases and using dynamic equations that are valid in a large signal domain
Gear and Advise by Jennifer Smith-Mayo
No full textJennifer Smith-Mayo, award-winning, free-lance photographer, videographer, multimedia artist, and instructor, discusses the gear she uses in her work and gives advise on how to choose a camera.
Jennifer collaborated with her husband, writer Matthew P. Mayo, on a series of popular hardcover books (Maine Icons, New Hampshire Icons, and Vermont Icons)
Statistical Science and Philosophy of Science: Whrer Do / Should They Meet in 2011 (and Beyond)?
No full textphilosophy of science, philosophy of statistics, decision theory, likelihood, subjective probability, Bayesianism, Bayes theorem, Fisher, Neyman and Pearson, Jeffreys, induction, frequentism, reliability, informativeness
Mobile genetic elements, cloning vectors and genetic manipulation of bifidobacteria
No full textGrowth difficulties, because of their fastidious nutritive nature and oxygen sensitivity, and a lack of efficient genetic tools have impeded until recently proper development of molecular studies in Bifidobacterium. These studies, however, are critical to uncover the cross-talk between bifidobacteria and their hosts' cells, and also to prove unequivocally the supposed beneficial activities supplied through the gastrointestinal tract of mammals either endogenously or after ingestion as probiotics. Analysis of gene sequences provided by whole genome sequencing projects has opened new avenues to decipher the genetic basis of bacteria-cell interactions and probiotic effects. However, the purposeful development of stable cloning and expression vectors based on robust replicons -either from temperate phages or resident plasmids- is additionally needed. This chapter addresses the current knowledge on the mobile genetic elements of bifidobacteria (phages, plasmids, and transposons) and reviews the different types of vectors already available for the Bifidobacterium species, together with the transformation procedures for introducing DNA into bifidobacterial cells. It also covers recent molecular studies performed with such vectors and incipient results on the genetic modification of these organisms, establishing the basis that would allow the use of bifidobacteria for many biotechnological applications. Pitfalls, drawbacks, and future needs in the field are also discussed
Statistical Scientist Meets a Philosopher of Science: A Conversation
No full textphilosophy of science, philosophy of statistics, decision theory, likelihood, subjective probability, Bayesianism, Bayes theorem, Fisher, Neyman and Pearson, Jeffreys, induction, frequentism, reliability, informativeness
Antonio Gramsci’s impact on critical pedagogy
No full textThis paper provides an account of Antonio Gramsci’s impact on the area of critical pedagogy. It indicates the Gramscian influence on the thinking of major exponents of the field. It foregrounds Gramsci's ideas and then indicates how they have been taken up by a selection of critical pedagogy exponents who were chosen on the strength of their identification and engagement with Gramsci's ideas, some of them even having written entire essays on Gramsci. The essay concludes with a discussion concerning an aspect of Gramsci's concerns, the question of powerful knowledge, which, in the present author's view, provides a formidable challenge to critical pedagogues.peer-reviewe
Dissipative switched linear differential systems
No full textWe develop a dissipativity theory for switched systems whose dynamical modes are described by systems of higher-order linear differential equations. We give necessary and sufficient conditions for dissipativity based on systems of LMIs, constructed from the coefficient matrices of the differential equations describing the modes. The relationship between dissipativity and stability is also discussed and an application to the stabilisation of power converters is provide
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