Results 11 to 20 of about 155,697 (259)

Universality theorems for inscribed polytopes and Delaunay triangulations [PDF]

open access: yes, 2014
We prove that every primary basic semialgebraic set is homotopy equivalent to the set of inscribed realizations (up to M\"obius transformation) of a polytope. If the semialgebraic set is moreover open, then, in addition, we prove that (up to homotopy) it
Adiprasito, Karim A.   +2 more
core   +1 more source

Any cyclic quadrilateral can be inscribed in any closed convex smooth curve [PDF]

open access: yes, 2018
We prove that any cyclic quadrilateral can be inscribed in any closed convex $C^1$-curve.
Akopyan, Arseniy, Avvakumov, Sergey
core   +4 more sources

Ultrafast laser inscription of mid-IR directional couplers for stellar interferometry [PDF]

open access: yes, 2014
We report the ultrafast laser fabrication and mid-IR characterization (3.39 microns) of four-port evanescent field directional couplers. The couplers were fabricated in a commercial gallium lanthanum sulphide glass substrate using sub-picosecond laser ...
Arriola, Alexander   +4 more
core   +2 more sources

Hybrid photonic circuit for multiplexed heralded single photons [PDF]

open access: yes, 2014
A key resource for quantum optics experiments is an on-demand source of single and multiple photon states at telecommunication wavelengths. This letter presents a heralded single photon source based on a hybrid technology approach, combining high ...
Alibart, Olivier   +9 more
core   +4 more sources

The Euler and Grace-Danielsson inequalities for nested triangles and tetrahedra: a derivation and generalisation using quantum information theory [PDF]

open access: yes, 2014
We derive several results in classical Euclidean elementary geometry using the steering ellipsoid formalism from quantum mechanics. This gives a physically motivated derivation of very non-trivial geometric results, some of which are entirely new.
Milne, Antony
core   +3 more sources

Produire des savoirs « africains »

open access: yesRevue d'anthropologie des connaissances, 2020
African intellectual communities often remain unknown in the French academic world. This article examines the case of CODESRIA (Council for Social Science Research in Africa) whose knowledge remains confined to the circles of 'Africanists'.
Lionel Zevounou
doaj   +1 more source

Biopolitique et autobiographisme. Les deux malades de Franz Joseph Gall

open access: yesStudia Romanica Posnaniensia, 2017
The aim of this article is, on the one hand, to show Franz Joseph Gall as an important figure for setting up the ideological framework for modern biopolitics and, on the other, to look at the literary traces of his personal engagement in this endeavour ...
Wojciech Sawala
doaj   +1 more source

Palimpsest, A Tool for Explaining the Identity of the Historic City [PDF]

open access: yesصفه, 2020
The city, the metropolis, the land, the earth, and even the smaller-scale buildings, roads, squares, neighbourhoods...; convey layers of history through their backgrounds: layers through which one can read through the images inscribed in them, hear ...
سیّدمحسن حبیبی   +1 more
doaj   +1 more source

On (Quasi-)Gnostic Strategies for Overcoming Cognitive Dissonance. The Bulgarian Case

open access: yesStudia Ceranea, 2019
The article poses a research question, important not only in the studies on (neo-)gnosticism, concerning the relationship between the gnostic strategies of interpreting the world (and especially its typical rules of classifying people, based on the ...
Grażyna Szwat-Gyłybowa   +1 more
doaj   +1 more source

Educational implications of a witch character – an extraordinary woman in the context of emancipatory pedagogy

open access: yesLubelski Rocznik Pedagogiczny, 2020
Contemplations on a woman-witch inscribed in the foundations of emancipatory pedagogy is to show modification of her current image, open up a new research opportunity that allows for a broader view of the witch as an interpreter of culture that does not ...
Izabela Symonowicz-Jabłońska
doaj   +1 more source

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