Results 71 to 80 of about 416,395 (281)
Unipotency of Matrix Group Generated by Two Matrices
Journal of Applied MathematicsIn this paper, the problem of unipotency for the matrix group generated by two matrices is examined. By employing matrix logarithms as a tool, various combinatorial formulas for matrices were derived by selecting different primitive elements.
Yanshuo Cheng, Xinsong Yang
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Influence of deformed primitive architecture on mechanical behavior of artificial porous meniscus
Materials & Design, 2020 Polycarbonate urethane (PCU) has emerged as a suitable material for artificial meniscus replacement after meniscectomy. However, the commercial PCU meniscal replacements could not reproduce native meniscus performance until now. The aim of this paper was
Li-ya Zhu +5 more
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The message of oldhamites from enstatite chondrites
Progress in Earth and Planetary Science, 2022 We have determined rare-earth element (REE) abundances in oldhamites (CaS) from 13 unequilibrated and equilibrated enstatite chondrites (5 EH and 8 EL) and in a few enstatites by in situ, laser ablation ICP-MS.
Tahar Hammouda +3 more
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Advanced Healthcare Materials, EarlyView.Ionizable lipid nanoparticles target multiple pathological pathways in neurodegeneration. The designed self‐assembled materials undergo a pH‐triggered structural transformation from a cubosome/hexosome coexistence to a hexosome phase, enhancing intracellular delivery of a multi‐target phytochemical formulation. The antioxidant‐loaded pH‐responsive LNPs
Thelma Akanchise +4 more
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An arithmetic intersection formula for denominators of Igusa class polynomials
, 2015 In this paper we prove an explicit formula for the arithmetic intersection number (CM(K).G1)_{\ell} on the Siegel moduli space of abelian surfaces, generalizing the work of Bruinier-Yang and Yang.
Lauter, Kristin, Viray, Bianca
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Advanced Healthcare Materials, EarlyView.This study shows that stem‐like cells isolated from breast cancer brain metastases drive the spread and growth of tumors in the brain. Among them, a highly adhesive subgroup initiates metastasis and resists many drugs. By closely reflecting patient tumors, these models help identify new targets and improve the development of effective treatments ...
Stefania Faletti +27 more
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Materials Research ExpressTriply periodic minimal surface (TPMS) structures are widely used in scaffold design for biomaterials due to their excellent porous architecture and mechanical properties.
Kai Qian +7 more
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Thermal Alteration of Labile Elements in Carbonaceous Chondrites
, 2018 Carbonaceous chondrite meteorites are some of the oldest Solar System planetary materials available for study. The CI group has bulk abundances of elements similar to those of the solar photosphere.
Andronikov, Alexandre +6 more
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Primitive elements and one relation algebras [PDF]
Transactions of the American Mathematical Society, 1974 Let F be a free algebra in a variety V. An element p of F is called primitive if it is contained in some free generating set for F. In 1936, J. H. C. Whitehead proved that a group with generators g 1 , … , g n ...
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3D Soft Hydrogels Induce Human Mesenchymal Stem Cells “Deep” Quiescence
Advanced Healthcare Materials, EarlyView.Three‐dimensional soft hydrogels mimicking the bone marrow niche induce deep quiescence in human mesenchymal stem cells. Unlike 2D culture, 3D matrices halt proliferation, regulate cell‐cycle and quiescence markers, and downregulate mTORC1 signaling, preserving stem cell phenotype and therapeutic potential ex vivo.
David Boaventura Gomes +11 more
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