Search for global f-modes and p-modes in the 8B neutrino flux

The impact of global acoustic modes on the 8B neutrino flux time series is computed for the first time. It is shown that the time fluctuations of the 8B neutrino flux depend on the amplitude of acoustic eigenfunctions in the region where the 8B neutrino flux is produced: modes with low n (or order) that have eigenfunctions with a relatively large amplitude in the Sun's core, strongly affect the neutrino flux; conversely, modes with high n that have eigenfunctions with a minimal amplitude in the Sun's core have a very small impact on the neutrino flux. It was found that the global modes with a larger impact on the 8B neutrino flux have a frequency of oscillation in the interval 250 \mu Hz to 500 \mu Hz (or a period in the interval 30 minutes to 70 minutes), such as the f-modes (n=0) for the low degrees, radial modes of order n smaller or equal to 3, and the dipole mode of order n=1. Their corresponding neutrino eigenfunctions are very sensitive to the solar inner core and are unaffected by the variability of the external layers of the solar surface. If time variability of neutrinos is observed for these modes, it will lead to new ways of improving the sound speed profile inversion in the central region of the Sun.Comment: 6 pages, 3 figures, 1 tabl

The Geology as an indispensable tool for optimizing the exploration of dimension Stones

Like any Geological Resource, the Dimension Stones can only be exploited where they occur. How they occur is a reflection of geological history that presided over its formation. Their nature determines the mode of deposit and therefore it’s potential to be exploited as ornamental stone. The geological setting of the Portuguese marbles became a key factor in the optimization of its exploitation, two ductile deformation phases must be consider, which originates the complex folded metamorphic layering. At least three fracturing systems are responsible for the high segmentation of the marbles in fragile deformation conditions and that must also be considered. Together these geological constraints lead to a really low production ratio (3% - 12%). These low efficiency productions emphasized the emergence of the geological knowledge of individual quarries in order to optimize is exploitation. Until recent years, with high prices for the Portuguese marbles the companies haven’t been concerned with the geological knowledge of its quarries, but now that an economic crisis is installed in the sector, basic geological studies in the quarries are mandatory and could save thousands of euros for each company

‘Half Victim, Half Accomplice’: Cat Person and Narcissism

At the end of 2017, Kristen Roupenian’s short story, Cat Person, went viral. Published at the height of the #MeToo movement, it depicted a ‘toxic date’ and a disturbing sexual encounter between Margot, a college student, and Robert, an older man she meets at work. The story was widely viewed as a relatable denunciation of women’s powerlessness and routine victimization. In this paper, I push against this common reading. I propose an alternative feminist interpretation through the lens of Simone de Beauvoir’s notion of narcissism: a form of alienation that consists in making oneself both the subject and the ultimate project of one’s life. Framing Margot as a narcissist casts her as engaging, not in subtly coerced, undesired sex, but rather in sex that is desired in a tragically alienated way. I argue that Beauvoir’s notion of narcissism is an important tool for feminists today – well beyond the interpretation of Cat Person. It presses us to see systematic subordination not just as something done to women, but also as something women do to themselves. This in turn highlights the neglected role of self-transformation as a key aspect of feminist political resistance