Results 91 to 100 of about 7,383 (221)

Logika racjonalności. W stronę modalnego platonizmu matematycznego

open access: yesZagadnienia Filozoficzne w Nauce, 2011
In this article Whitehead’s philosophy of mathematics is characterized as a Structural Second-Order Platonism and it is demonstrated that the Whiteheadian ontology is consistent with modern formal approaches to the foundation of mathematics.
Piotr Wilczek
doaj  

A New High‐Pressure Polymorph of MgTe2O5 with a Unique Crystal Structure

open access: yesEuropean Journal of Inorganic Chemistry, Volume 29, Issue 26, 16 September 2026.
MgTe2O5 synthesized under special high‐pressure/high‐temperature conditions of 8 GPa and 800 °C exhibits a unique crystal structure consisting of fused sechser rings built from pseudooctahedral [TeO5]6– and trigonal‐pyramidal [TeO3]2– units. The single‐crystal structure and temperature‐dependent powder diffraction data are presented.
Benjamin J. Pullicino, Gunter Heymann
wiley   +1 more source

Moral Implications of Augustine's Philosophical and Spiritual Journey in his Confessiones

open access: yesCommunications, 2015
Aurelius Augustinus, though born to a Christian mother, had undergone a long and tedious spiritual journey in his search for truth and meaning. Youthful hedonism gave way to Skepticism, Manichaeism, and later on to Neo-Platonism as he searched for ...
Michal Valco, Roman Kralik, Lee Barrett
doaj   +1 more source

N8‐Modified Quino[4,3,2‐Kl]acridines as Promising Antimalarial G‐Quadruplex Ligands

open access: yesChemBioChem, Volume 27, Issue 17, 14 September 2026.
A series of extended aromatic compounds with tunable substituents was synthesized using a multistep methodology which allows various substitutions of the 8H‐quino[4,3,2‐kl]acridine scaffold. This chemical series appeared as a promising way to new antimalarial drug candidates with high activity (IC50 < 100 nM), exhibiting a novel mechanism of action ...
Steve Saulnier   +10 more
wiley   +1 more source

Platonic surface

open access: yesCommentarii Mathematici Helvetici, 1999
If SO is a Riemann surface with a complete metric of finite area and constant curvature -1, let SC denote the conformal compactification of SO. We show that, under the assumption that the cusps of SO are large, there is a close relationship between the hyperbolic metrics on SO and SC. We use this relationship to show that
openaire   +3 more sources

Creating new concepts in mathematics: freedom and limitations. The case of Category Theory

open access: yesZagadnienia Filozoficzne w Nauce, 2020
In the paper we discuss the problem of limitations of freedom in mathematics and search for criteria which would differentiate the new concepts stemming from the historical ones from the new concepts that have opened unexpected ways of thinking and ...
Zbigniew Semadeni
doaj  

ANTI-LATIN WRITINGS OF GEORGE GEMISTOS PLETHON: TEXTS AND CONTEXT [PDF]

open access: yesВестник Екатеринбургской духовной семинарии
This article presents an analysis and translation with commentaries of the works of George Gemistos Plethon related to the anti-Latin polemic: his treatise against the book defending the Latin dogma and a letter to cardinal Bessarion with Plethon’s ...
Tatiana A. Senina
doaj   +1 more source

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