16,003 research outputs found

    Catholic Universities as Missionary Spaces: Wilhelm Schmidt, Chen Yuan, and the Catholic University in Beijing

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    This article examines the ‘missionary space’ of the Catholic University of Beijing (Furen University), particularly studying how the Catholic visions of the Western missionary society in charge of the university, the Society of the Divine Word, negotiated with, cooperated, and ultimately came in conflict with the ideas of the Chinese faculty, embodied in the Chinese President of the university, Chen Yuan. It focuses on the moral and intellectual claims by both sides. I argue that moral claims mattered, and ultimately the Western missionary society lost its legitimacy due to actions that it took during and after the Second World War.This article examines the ‘missionary space’ of the Catholic University of Beijing (Furen University), particularly studying how the Catholic visions of the Western missionary society in charge of the university, the Society of the Divine Word, negotiated with, cooperated, and ultimately came in conflict with the ideas of the Chinese faculty, embodied in the Chinese President of the university, Chen Yuan. It focuses on the moral and intellectual claims by both sides. I argue that moral claims mattered, and ultimately the Western missionary society lost its legitimacy due to actions that it took during and after the Second World War

    Mechanism of Gravity Impulse

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    It is well-known that energy-momentum is the source of gravitational field. For a long time, it is generally believed that only stars with huge masses can generate strong gravitational field. Based on the unified theory of gravitational interactions and electromagnetic interactions, a new mechanism of the generation of gravitational field is studied. According to this mechanism, in some special conditions, electromagnetic energy can be directly converted into gravitational energy, and strong gravitational field can be generated without massive stars. Gravity impulse found in experiments is generated by this mechanism.Comment: 10 page

    Spin-Spin Interactions in Gauge Theory of Gravity, Violation of Weak Equivalence Principle and New Classical Test of General Relativity

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    For a long time, it is generally believed that spin-spin interactions can only exist in a theory where Lorentz symmetry is gauged, and a theory with spin-spin interactions is not perturbatively renormalizable. But this is not true. By studying the motion of a spinning particle in gravitational field, it is found that there exist spin-spin interactions in gauge theory of gravity. Its mechanism is that a spinning particle will generate gravitomagnetic field in space-time, and this gravitomagnetic field will interact with the spin of another particle, which will cause spin-spin interactions. So, spin-spin interactions are transmitted by gravitational field. The form of spin-spin interactions in post Newtonian approximations is deduced. This result can also be deduced from the Papapetrou equation. This kind of interactions will not affect the renormalizability of the theory. The spin-spin interactions will violate the weak equivalence principle, and the violation effects are detectable. An experiment is proposed to detect the effects of the violation of the weak equivalence principle.Comment: 17 pages, no figur

    Complex scale-free networks with tunable power-law exponent and clustering

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    This article is made available through the Brunel Open Access Publishing Fund. It is distributed under a Creative Commons License (http://creativecommons.org/licenses/by/3.0/). Copyright @ 2013 Elsevier B.V.We introduce a network evolution process motivated by the network of citations in the scientific literature. In each iteration of the process a node is born and directed links are created from the new node to a set of target nodes already in the network. This set includes mm “ambassador” nodes and ll of each ambassador’s descendants where mm and ll are random variables selected from any choice of distributions plpl and qmqm. The process mimics the tendency of authors to cite varying numbers of papers included in the bibliographies of the other papers they cite. We show that the degree distributions of the networks generated after a large number of iterations are scale-free and derive an expression for the power-law exponent. In a particular case of the model where the number of ambassadors is always the constant mm and the number of selected descendants from each ambassador is the constant ll, the power-law exponent is (2l+1)/l(2l+1)/l. For this example we derive expressions for the degree distribution and clustering coefficient in terms of ll and mm. We conclude that the proposed model can be tuned to have the same power law exponent and clustering coefficient of a broad range of the scale-free distributions that have been studied empirically.EPSR
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