نتایج جستجو برای: lantern mantle
تعداد نتایج: 17670 فیلتر نتایج به سال:
MD simulations with pairwise potential on MgO and MgSiO3 vacancies pair were conducted to obtain the Newtonian viscosity of lower mantle. The results of MgO are such that the viscosity of the upper half portion in the lower mantle shows uniform structure but in the lower half it rapidly decreases to the core mantle boundary by two order of magnitude. On the other hand, the viscosity of MgSiO3 p...
Recommender Systems need to deal with different types of users who represent their preferences in various ways. This difference in user behaviour has a deep impact on the accuracy of the recommendations received by the users, depending, mostly, on the quantity and the quality of the information the system knows about the user. Specifically, the inconsistencies of the user impose a lower bound o...
The paper is departing from a position in aesthetic theory, in which order of some sort is considered a contributing factor to aesthetic value. It is likewise departing from a position, that generative art, drawing on rule based systems and algorithms, is a legitimate art practice. Instead of generating order by falling back on an artistic master mind or the sensibility and skill of an artist, ...
This term refers to mushrooms that grow naturally and have hallucinogenic (sometimes called psychedelic) properties. Consumption of different species has occurred in various cultures over the centuries, with use in ritual ceremonies in Mexico being particularly well known. In the UK at present the species most commonly used is Psilocybe semilanceata, also known as the ‘liberty cap’ mushroom. Th...
Excess volcanism and crustal swelling associated with hot spots are generally attributed to thermal plumes upwelling from the mantle. This concept has been tested in the portion of the Mid-Atlantic Ridge between 34 degrees and 45 degrees (Azores hot spot). Peridotite and basalt data indicate that the upper mantle in the hot spot has undergone a high degree of melting relative to the mantle else...
The coupling of large telescopes to astronomical instruments has historically been challenging due the tension between instrument throughput and stability. Light from telescope can either be injected wholesale into instrument, maintaining high at cost point-spread function (PSF) stability, or time-varying components light filtered out with single-mode fibers (SMFs), stability loss. Today, field...
country. Is there no way in which to break this wall of prejudice and opposition? These people are illiterate; scientific lectures do not interest them, and ordinarypropaganda leaves them untouched. But if entertainment can only be combined with such teaching, much might be accomplished. I would suggest coloured lantern slides as an aid to popularising vaccination. If vaccinators were but train...
BACKGROUND Cyclin D1-positive B cells are occasionally found in the mantle zones of reactive lymphoid follicles, a condition that has been called "in situ mantle cell lymphoma". The clinical significance of this lesion remains uncertain. DESIGN AND METHODS The clinical and pathological characteristics, including SOX11 expression, of 23 cases initially diagnosed as in situ mantle cell lymphoma...
Continental lithospheric mantle is heterogeneous in terms of modal and chemical composition. There are fundamental differences between cratonic and younger mantle (Boyd et al., 1997), and non-cratonic mantle has broad compositional variations worldwide (McDonough, 1990). Xenoliths of spinel peridotites in alkali basalts are direct samples of lithospheric mantle but it may not be clear whether a...
Electrical conductivity in the Earth's mantle is sensitive to temperature and chemical environment. Recent laboratory measurements of electrical conductivity are combined with candidate mantle geotherms to produce synthetic electrical conductivity profiles. These profiles are used to forward model the Earth's geomagnetic response function C, results of which are compared with the observed globa...
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