2,463 research outputs found

    A Mixing Bowl of Holidays: How Globalization Impacts Holidays and Culture, Seen Through Halloween and El Día de los Muertos

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    To what extent has cultural hybridity occurred in cases of Halloween and El Día de los Muertos, and what kind of meaning is attached to this hybridity? While there is a lot of research on globalization and its effects on people in general, there is no specific research on how globalization, specifically cultural globalization, has impacted holidays through cultural hybridity. Exploring these concepts and applying them to the case of Halloween and El Día de los Muertos will allow people to better understand the two holidays and their relationship with each other. Today, there is an increase in people moving around the world. Finding out how this impacts holidays practiced will be beneficial to the people trying to understand these holidays, policymakers, and to scholars interested in the topic. With holidays being the backbone of some cultures, this research could have a strong meaning on certain groups of people and the way they view their traditions. I hypothesize that there is a significant level of cultural hybridity happening between the two holidays due to globalization, which can be applied to other holidays appropriately. After performing a survey and ethnographic observation, it can be concluded that there is cultural hybridity within the holiday of El Dia de los Muertos. The hypothesis was partially correct because the findings are more consistent with cultural assimilation, rather than any mutual influence between the two holidays

    Quantum Electronic Transport through a Precessing Spin

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    The conductance through a local nuclear spin precessing in a magnetic field is studied by using the equations-of-motion approach. The characteristics of the conductance is determined by the tunneling matrix and the position of equilibrium chemical potential. We find that the spin flip coupling between the electrons on the spin site and the leads produces the conductance oscillation. When the spin is precessing in the magnetic field at Larmor frequency (ωL\omega_{L}), the conductance develops the oscillation with the frequency of both ωL\omega_{L} and 2ωL\omega_{L} components, the relative spectrum weight of which can be tuned by the chemical potential and the spin flip coupling.Comment: 5 pages, 3 figure

    Ministers and Civil Servants Relations in India: an Evaluation

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    In a parliamentary form of government, like in India, there exist two types of executives i.e. political or elected and permanent executive. Political executive derives its power from people and enjoys the power by virtue of constitutional position, while permanent executive or civil servant is selected on merit basis and accumulate its power due to an administrative position and technical expertise. The system of a democratic government is based on the principle of popular sovereignty wherein the supreme rests in people or their elected representative. Political executive or Minister is assisted by a civil servant. A balanced relationship between them is essential for smooth and efficient functioning of government. Minister and civil servant act as two pillars of the parliamentary form of government and weakness of any one of them will adversely affect the performance of government. Theoretically political and permanent executives perform a different role in government but in practice, their work is often overlapping and difficult to differentiate it

    Bringing closure to microlensing mass measurement

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    Interferometers offer multiple methods for studying microlensing events and determining the properties of the lenses. We investigate the study of microlensing events with optical interferometers, focusing on narrow-angle astrometry, visibility, and closure phase. After introducing the basics of microlensing and interferometry, we derive expressions for the signals in each of these three channels. For various forecasts of the instrumental performance, we discuss which method provides the best means of measuring the lens angular Einstein radius theta_E, a prerequisite for determining the lens mass. If the upcoming generation of large-aperture, AO-corrected long baseline interferometers (e.g. VLTI, Keck, OHANA) perform as well as expected, theta_E may be determined with signal-to-noise greater than 10 for all bright events. We estimate that roughly a dozen events per year will be sufficiciently bright and have long enough durations to allow the measurement of the lens mass and distance from the ground. We also consider the prospects for a VLTI survey of all bright lensing events using a Fisher matrix analysis, and find that even without individual masses, interesting constraints may be placed on the bulge mass function, although large numbers of events would be required.Comment: 23 pages, aastex, submitted to Ap

    Reducing the weak lensing noise for the gravitational wave Hubble diagram using the non-Gaussianity of the magnification distribution

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    Gravitational wave sources are a promising cosmological standard candle because their intrinsic luminosities are determined by fundamental physics (and are insensitive to dust extinction). They are, however, affected by weak lensing magnification due to the gravitational lensing from structures along the line of sight. This lensing is a source of uncertainty in the distance determination, even in the limit of perfect standard candle measurements. It is commonly believed that the uncertainty in the distance to an ensemble of gravitational wave sources is limited by the standard deviation of the lensing magnification distribution divided by the square root of the number of sources. Here we show that by exploiting the non-Gaussian nature of the lensing magnification distribution, we can improve this distance determination, typically by a factor of 2--3; we provide a fitting formula for the effective distance accuracy as a function of redshift for sources where the lensing noise dominates.Comment: matches PRD accepted version (expanded description of the cosmological parameter space + minor changes

    Astrometric Microlensing as a Method of Discovering and Characterizing Extra-Solar Planets

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    We introduce a new method of searching for and characterizing extra-solar planets. We show that by monitoring the center-of-light motion of microlensing alerts using the next generation of high precision astrometric instruments the probability of detecting a planet orbiting the lens is high. We show that adding astrometric information to the photometric microlensing lightcurve greatly helps in determining the planetary mass and semi-major axis. We introduce astrometric maps as a new way for calculating astrometric motion and planet detection probabilities. Finite source effects are important for low mass planets, but even Earth mass planets can give detectable signals.Comment: 9 pages includes 8 postscript figures, AAS Latex, submitted to Ap

    Definitive spectroscopic determination of the transverse interactions responsible for the magnetic quantum tunneling in Mn12-acetate

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    We present detailed angle-dependent single crystal electron paramagnetic resonance (EPR) data for field rotations in the hard plane of the S=10 single molecule magnet Mn12-acetate. A clear four-fold variation in the resonance positions may be attributed to an intrinsic fourth order transverse anisotropy (O44). Meanwhile, a four-fold variation of the EPR lineshapes confirms a recently proposed model wherein disorder associated with the acetic acid of crystallization induces a locally varying quadratic (rhombic) transverse anisotropy (O22). These findings explain most aspects of the magnetic quantum tunneling observed in Mn12-acetate.Comment: 7 pages, including figures, accepted for publication in Phys. Rev. Let
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