953 research outputs found

    Advisory Opinions of the Inter-American Court of Human Rights

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    Ground effects related to landing of airplanes with low-aspect-ratio wings

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    Influence of ground induced aerodynamic effects on landing maneuver of aircraft with low aspect ratio wing

    Latitudinal gradients of cosmic rays and the polarity reversal of the heliospheric magnetic field: A preliminary evaluation

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    Within the statistical limits imposed by the currently available data and the noise inherent in the determination of the latitudinal gradient, no evidence for the expected change in the latitudinal gradient from pre-1980 to post-1980 epochs can be found. In addition, the rigidity dependence of the gradient appears to be the same in the two epochs. Thus, no evidence is found for a sensitivity of the latitudinal gradient to the polarity of the largescale heliospheric magnetic field such as has been predicted by models incorporating particle drifts

    The Best Regime of Aristotle’s Nicomachean Ethics

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    My paper argues that the Nicomachean Ethics endorses kingship (basileia) as the best regime (aristê politeia). In order to justify such a claim, I look at Aristotle’s discussion and rankings of regimes throughout the Ethics, specifically, the discussions of regime division in EN VIII.10, the inculcation of virtue in II.1, ethical habituation in X.9, and the “one regime which is best everywhere according to nature” in V.7

    A cancer-associated, genome protective programme engaging PKCε.

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    Associated with their roles as targets for tumour promoters, there has been a long-standing interest in how members of the protein kinase C (PKC) family act to modulate cell growth and division. This has generated a great deal of observational data, but has for the most part not afforded clear mechanistic insights into the control mechanisms at play. Here, we review the roles of PKCε in protecting transformed cells from non-disjunction. In this particular cell cycle context, there is a growing understanding of the pathways involved, affording biomarker and interventional insights and opportunities

    Can surface flux transport account for the weak polar field in cycle 23?

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    To reproduce the weak magnetic field on the polar caps of the Sun observed during the declining phase of cycle 23 poses a challenge to surface flux transport models since this cycle has not been particularly weak. We use a well-calibrated model to evaluate the parameter changes required to obtain simulated polar fields and open flux that are consistent with the observations. We find that the low polar field of cycle 23 could be reproduced by an increase of the meridional flow by 55% in the last cycle. Alternatively, a decrease of the mean tilt angle of sunspot groups by 28% would also lead to a similarly low polar field, but cause a delay of the polar field reversals by 1.5 years in comparison to the observations.Comment: 9 pages, 8 figures, Space Science Reviews, accepte
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