Results 21 to 30 of about 438,188 (201)
An Essay on the Ree Octagons [PDF]
Journal of Algebraic Combinatorics, 1995 The authors give an explicit coordinatization of the Moufang generalized octagons associated with the Ree groups of type \(^ 2F_ 4\). This approach is used to give numerous applications, e.g. to the study of transitivity properties, suboctagons, subquadrangles and the determination of the groups of projectivities.
Joswig, Michael, Van Maldeghem, H.
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F-rationality of Rees algebras [PDF]
Journal of Algebra, 2021 In this paper, we study the $F$-rationality of the Rees algebra and the extended Rees algebra of $\mathfrak{m}$-primary ideals in excellent local rings $(R, \mathfrak{m})$ of prime characteristic. We partially answer some conjectures and questions raised by N. Hara, K.-i. Watanabe and K.-i. Yoshida (J. Algebra, pp.153--190, vol 247, 2002).
Mitra Koley, Manoj Kummini
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Garnet–monazite rare earth element relationships in sub-solidus metapelites: a case study from Bhutan [PDF]
, 2018 A key aim of modern metamorphic geochronology is to constrain precise and accurate rates and timescales of tectonic processes. One promising approach in amphibolite and granulite-facies rocks links the geochronological information recorded in zoned ...
Argles, Tom W. +5 more
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, 2021 We survey old and new approaches to the study of symbolic powers of ideals. Our focus is on the symbolic Rees algebra of an ideal, viewed both as a tool to investigate its symbolic powers and as a source of challenging problems in its own right. We provide an invitation to this area of investigation by stating several open questions.
Grifo, Eloísa, Seceleanu, Alexandra
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Acute oral sodium propionate supplementation raises resting energy expenditure and lipid oxidation in fasted humans [PDF]
, 2018 Short chain fatty acids (SCFAs), produced from fermentation of dietary fibre by the gut microbiota, have been suggested to modulate energy metabolism. Previous work using rodent models have demonstrated that oral supplementation of the SCFA propionate ...
Baldwin +19 more
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Geochemical characteristics and mining prospects of REE in Lugou coal mine of Xinmi coalfield
矿业科学学报, 2020 The content of rare earth elements and their occurrence characteristics under low temperature ashing conditions in Lugou coal mine of Xinmi coalfield were studied by XRD, XRF and ICP-MS analysis techniques.The results show that the total content of rare ...
Luo Zhonggeng +3 more
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A Special Rare-earth Mineral —Eudialyte
Kuangchan zonghe liyong, 2023 This is an essay in the field of earth science, which mainly reviews the basic characteristics of eudialyte, a rare earth-containing mineral in alkaline rocks.
Wei Chen, Jiayun Zhou
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Opinion dynamics of random-walking agents on a lattice [PDF]
, 2011 The opinion dynamics of random-walking agents on finite two-dimensional lattices is studied. In the model, the opinion is continuous, and both the lattice and the opinion can be either periodic or nonperiodic.
Ree, Suhan
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GEOCHEMICAL HETEROGENEITY OF ESTONIAN GRAPTOLITE ARGILLITE; pp. 377–401 [PDF]
Oil Shale, 2013 This paper describes vertical fine-scale geochemical heterogeneity of Estonian graptolite argillite (GA). GA samples from Pakri and Saka outÂcrop sections were collected at 20 cm intervals for chemical analysis of major and trace elements, including ...
MARGUS VOOLMA +4 more
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Practical utility and reliability of whole-room calorimetry in young children [PDF]
, 2012 The use of whole-room calorimetry (WRC) in young children can increase our understanding of children's energy balance. However, studies using WRC in young children are rare due to concerns about its feasibility.
Anthony D. Okely +8 more
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