35 research outputs found
The Asiatic mode of marketing
No full textThis article was developed especially for the inaugural issue of the new journal ʻJapan Marketing History Reviewʼ. The senior author of this article, Nikhilesh Dholakia （Nik）, was invited in 1992 to teach at Chuo Daigaku – indeed, the rst foreign professor that Chuo invited to teach a course in English language. In addition to an undergraduate course, Nik also offered a postgraduate seminar. Professor Kazuo Usui （Kaz） – even though a faculty member at Saitama University with a part-time faculty af liation at Chuo University – joined Nikʼs postgraduate seminar as a participant. The rest, as they say, is history – a deep friendship between Nik and Kaz, extending to the families, has evolved; and this article is a tribute to this relationship. In this paper, the authors use the phraseology of the ʻAsiatic Modeʼ, of Karl Marx, in a playful mode to reect on the Asiatic Mode of Marketing. The article offers a very brief review of the ʻAsiatic Mode of Productionʼ ideas of Marx, including a summary of the critique of these ideas. What becomes apparent is that, with the passage of time, Marx was willing to evolve and adapt his ideas – moving from a somewhat admiring view of colonial inuence on Asian nations to a more balanced view of the predations of colonial rule. In the discipline of marketing, with some occasional exceptions, the scholars remain mired in an ʻAsiatic Modeʼ of thinking: The West is Best; and the Rest better learn from the West. Practitioners also remain in this mode, though they sometimes venture forth with oft-innovative non-western practices; and even occasionally back-inuence the marketing practices of the West. In this paper, the authors offer their views of marketing histories of the two Asian countries of origin of the authors – India and Korea. Then they turn to a general critique of the way marketing history is studied – or, in many cases, neglected – in Asian settings. A critical scholarly project for the future, the authors believe, is to break out of the ʻgauze of Othernessʼ that characterizes western and even Asian views of Asia. It is time to move to （to create） a world where the West is just a region, in the same way Asia or Africa or Latin America are regions; the West becoming co-equal to them
A General, Differentiable Transit Model for Ellipsoidal Occulters: Derivation, Application, and Forecast of Planetary Oblateness and Obliquity Constraints with JWST
No full textIncreasingly precise space-based photometry uncovers higher-order effects in transits, eclipses and phase curves which can be used to characterize exoplanets in novel ways. The subtle signature induced by a rotationally deformed exoplanet is determined by the planet\u27s oblateness and rotational obliquity, which provide a wealth of information about a planet\u27s formation, internal structure, and dynamical history. However, these quantities are often strongly degenerate and require sophisticated methods to convincingly constrain. We develop a new semi-analytic model for an ellipsoidal object occulting a spherical body with arbitrary surface maps expressed in terms of spherical harmonics. We implement this model in an open-source Jax-based Python package eclipsoid, allowing just-in-time compilation and automatic differentiation. We then estimate the precision obtainable with JWST observations of the long period planet population and demonstrate the best current candidates for studies of oblateness and obliquity. We test our method on the JWST NIRSpec transit of the inflated warm Neptune WASP-107 b and place an upper bound on its projected oblateness h if the planet is not inclined to our line of sight. Further studies of long-period exoplanets will necessitate discarding the assumption of planets as spherical bodies. Eclipsoid provides a general framework allowing rotational deformation to be modelled in transits, occultations, phase curves, transmission spectra and more.14 pages, 8 figures. Submitted to ApJ. Code available open-source at https://github.com/shishirdholakia/eclipsoid/tree/mai
hpparvi/PyTransit: V2.6.0
No full text<ul>
<li>Improvements to the RoadRunner model</li>
<li>A new transmission spectroscopy model <code>pytransit.TSModel</code></li>
<li>Rewrote the LDTkLDModel limb darkening model for <code>RoadRunnerModel</code> and <code>TSModel</code></li>
</ul>
Foresight Exploiting the Electromagnetic Spectrum State of the Science Review Manufacturing with light: photonics at the molecular level
No full textThis review does not represent the view of the DTI or Government policy, but is an account of the state of the art in the field by the commissioned author(s). This document is one of four state of the science reviews produced for the four topics selected for detailed study in the Foresight Exploiting the Electromagnetic Spectrum project. Further details are available at the Foresight web site
Saving in Cycles: How to Get People to Save More Money
No full textLow personal savings rates are an important social issue in the United States. We propose and test one particular method to get people to save more money that is based on the cyclical time orientation. In contrast to conventional, popular methods that encourage individuals to ignore past mistakes, focus on the future, and set goals to save money, our proposed method frames the savings task in cyclical terms, emphasizing the present. Across the studies, individuals who used our proposed cyclical savings method, compared with individuals who used a linear savings method, provided an average of 74% higher savings estimates and saved an average of 78% more money. We also found that the cyclical savings method was more efficacious because it increased implementation planning and lowered future optimism regarding saving money. © The Author(s) 2013
exoplanet-dev/jaxoplanet: Astronomical time series analysis with JAX
No full text<h2>What's Changed</h2>
<ul>
<li>Updating and applying pre-commit by @dfm in https://github.com/exoplanet-dev/jaxoplanet/pull/16</li>
<li>Adding interface for arbitrary order limb darkening by @dfm in https://github.com/exoplanet-dev/jaxoplanet/pull/27</li>
<li>starry: Rotation matrices by @lgrcia in https://github.com/exoplanet-dev/jaxoplanet/pull/17</li>
<li>Adding documentation infrastructure by @dfm in https://github.com/exoplanet-dev/jaxoplanet/pull/31</li>
<li>Refactoring to remove _src private module by @dfm in https://github.com/exoplanet-dev/jaxoplanet/pull/40</li>
<li>Removing <code>quad</code> submodule and simplifying some jaxprs by @dfm in https://github.com/exoplanet-dev/jaxoplanet/pull/46</li>
<li>Adding tutorials by @dfm in https://github.com/exoplanet-dev/jaxoplanet/pull/35</li>
<li>Migrating to hatch instead of poetry for build backend by @dfm in https://github.com/exoplanet-dev/jaxoplanet/pull/60</li>
<li>Implement exposure time integration by @soichiro-hattori in https://github.com/exoplanet-dev/jaxoplanet/pull/57</li>
<li>Alternative implementation for rotation matrices by @dfm in https://github.com/exoplanet-dev/jaxoplanet/pull/63</li>
<li>Ensuring the square of the kite area calculation is non-negative by @soichiro-hattori in https://github.com/exoplanet-dev/jaxoplanet/pull/73</li>
<li>Update the basis computations to use sparse linear algebra by @dfm in https://github.com/exoplanet-dev/jaxoplanet/pull/72</li>
<li>Introducing units and refactoring Keplerian orbit models by @dfm in https://github.com/exoplanet-dev/jaxoplanet/pull/61</li>
<li>Implementing polynomial basis by @dfm in https://github.com/exoplanet-dev/jaxoplanet/pull/76</li>
<li>Fixing issue where light curve computation fails because of incorporating JPU units by @soichiro-hattori in https://github.com/exoplanet-dev/jaxoplanet/pull/86</li>
<li>Adding Zenodo info for releases by @dfm in https://github.com/exoplanet-dev/jaxoplanet/pull/92</li>
<li>Adding light_curves.py file to <strong>init</strong> file by @soichiro-hattori in https://github.com/exoplanet-dev/jaxoplanet/pull/104</li>
<li>Upload docs build logs when the build fails by @dfm in https://github.com/exoplanet-dev/jaxoplanet/pull/115</li>
<li>Updating ruff configuration by @dfm in https://github.com/exoplanet-dev/jaxoplanet/pull/116</li>
<li>Truncate <code>_body_stack</code> in Keplerian <code>System</code>'s <code>__repr__</code> by @dfm in https://github.com/exoplanet-dev/jaxoplanet/pull/117</li>
<li>installation instruction by @jiayindong in https://github.com/exoplanet-dev/jaxoplanet/pull/108</li>
<li>Merge tutorials updates from <code>tutorials</code> branch into <code>main</code> by @dfm in https://github.com/exoplanet-dev/jaxoplanet/pull/118</li>
<li>Making changes to LimbDarkLightCurve().light_curve() method to make for multiplanetary systems by @soichiro-hattori in https://github.com/exoplanet-dev/jaxoplanet/pull/114</li>
<li>Adding DJ to Zenodo record by @jiayindong in https://github.com/exoplanet-dev/jaxoplanet/pull/121</li>
<li>docs: keplerian orbits by @catrionamurray in https://github.com/exoplanet-dev/jaxoplanet/pull/109</li>
<li>docs: synthetic radial velocities by @lgrcia in https://github.com/exoplanet-dev/jaxoplanet/pull/107</li>
<li>Adding "jaxoplanet core from scratch" tutorial by @dfm in https://github.com/exoplanet-dev/jaxoplanet/pull/110</li>
<li>Fix syntax in .zenodo.json by @dfm in https://github.com/exoplanet-dev/jaxoplanet/pull/126</li>
<li>feat: public <code>body_vmap</code> (meeting with @dfm) by @lgrcia in https://github.com/exoplanet-dev/jaxoplanet/pull/123</li>
<li>feat: interface for starry maps and light curves by @lgrcia in https://github.com/exoplanet-dev/jaxoplanet/pull/111</li>
<li>feat: starry spot expansion + maps with amplitude and better default by @lgrcia in https://github.com/exoplanet-dev/jaxoplanet/pull/133</li>
<li>Making it harder to instantiate Body objects on their own by @dfm in https://github.com/exoplanet-dev/jaxoplanet/pull/131</li>
<li>docs:Update readme by @soichiro-hattori in https://github.com/exoplanet-dev/jaxoplanet/pull/135</li>
<li>Adding autogenerated API docs by @dfm in https://github.com/exoplanet-dev/jaxoplanet/pull/125</li>
<li>Factoring the "body stack" logic out to a generic "object stack" by @dfm in https://github.com/exoplanet-dev/jaxoplanet/pull/136</li>
<li>Experimenting with a different interface for exposure time by @dfm in https://github.com/exoplanet-dev/jaxoplanet/pull/129</li>
<li>Vectorize light curve functions by @dfm in https://github.com/exoplanet-dev/jaxoplanet/pull/141</li>
<li>Adding interpolation transform by @dfm in https://github.com/exoplanet-dev/jaxoplanet/pull/142</li>
<li>Major update to docs by @dfm in https://github.com/exoplanet-dev/jaxoplanet/pull/143</li>
<li>added test <code>test_keplerian_central_from_orbit()</code> by @catrionamurray in https://github.com/exoplanet-dev/jaxoplanet/pull/139</li>
<li>Adding @shashankdholakia to zenodo.json by @dfm in https://github.com/exoplanet-dev/jaxoplanet/pull/145</li>
<li>Refactoring surface map interface by @dfm in https://github.com/exoplanet-dev/jaxoplanet/pull/144</li>
<li>Fixing bug in <code>Central.from_orbital_properties</code> by @dfm in https://github.com/exoplanet-dev/jaxoplanet/pull/153</li>
<li>Add <code>dgegen</code> to <code>zenodo.json</code>, fix syntax by @dgegen in https://github.com/exoplanet-dev/jaxoplanet/pull/149</li>
</ul>
<h2>New Contributors</h2>
<ul>
<li>@lgrcia made their first contribution in https://github.com/exoplanet-dev/jaxoplanet/pull/17</li>
<li>@jiayindong made their first contribution in https://github.com/exoplanet-dev/jaxoplanet/pull/108</li>
<li>@catrionamurray made their first contribution in https://github.com/exoplanet-dev/jaxoplanet/pull/109</li>
</ul>
<p><strong>Full Changelog</strong>: https://github.com/exoplanet-dev/jaxoplanet/compare/v0.0.1...v0.0.2</p>
