Auke Rijpma

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The main promise of the digital humanities is the ability to perform scholar studies at a much broader scale, and in a much more reusable fashion. The key enabler for such studies is the availability of sufficiently well described data. For the field of socio-economic history, data usually comes in a tabular form. Existing efforts to curate and publish(More)
The optimum geometry of a third-order gradiometer for operation in unshielded environments is discussed. The optimization result depends on the specific signal and noise conditions. The fetal heart is considered as an example of the signal source. We optimized the gradiometer such that the signal-to-noise ratio is maximized in an averaged sense for all(More)
We derive expressions for the magnetic flux in a circular loop due to eddy currents and thermal noise in coaxial metallic disks. The eddy currents are induced by an applied field that changes sinusoidally in time. We give expressions for the eddy current noise when the frequency of the applied field is very low as well as when it is very high. We combine(More)
This article introduces a new dataset of historical family characteristics based on ethnographic literature. The novelty of the dataset lies in the fact that it is constructed at the level of the ethnic group. To test the possibilities of the dataset, we construct a measure of family constraints on women’s agency from it and explore its correlation to a(More)
In the legal system of the pre-modern Middle East the closest thing to an autonomous private organization was the Islamic waqf. This non-state institution inhibited political participation, collective action, and rule of law, among other indicators of democratization. It did so through several mechanisms. Its activities were essentially set by its founder,(More)
This article introduces a new dataset of historical family characteristics based on ethnographic literature. The novelty of the dataset lies in the fact that it is constructed at the level of the ethnic group. To test the possibilities of the dataset, we construct a measure of family constraints on women's agency from it and explore its correlation to a(More)
In the pre-modern Middle East the closest thing to an autonomous private organization was the Islamic waqf. This non-state institution inhibited political participation, collective action, and rule of law, among other indicators of democratization. It did so through several mechanisms. Its activities were essentially set by its founder, which limited its(More)
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