Results 31 to 40 of about 11,828 (299)

Tessellations on bidimensional materials based on phthalocyanine and applications: a review

open access: yesMundo Nano, 2022
In this review, we explore the bidimensional materials based on phthalocyanine molecules. The phthalocyanine molecule is used as a brick for the construction of new bidimensional materials.
Roxana Mitzayé del Castillo Vázquez   +3 more
doaj   +1 more source

Metagrating solutions for full color single-plate waveguide combiner

open access: yesEPJ Applied Metamaterials, 2022
In this work we propose several full-color metagrating solutions for single waveguide-based Augmented and Virtual Reality near-eye display systems. The presented solutions are based on a combination of reflective and/or transmissive diffraction gratings ...
Shramkova Oksana   +5 more
doaj   +1 more source

Monadic Second-Order Logic over Rectangular Pictures and Recognizability by Tiling Systems [PDF]

open access: yes, 1996
It is shown that a set of pictures (rectangular arrays of symbols) is recognized by a finite tiling system iff it is definable in existential monadic second-order logic.
Giammarresi, Dora   +3 more
core   +1 more source

This Kinetic World: Rethinking the Grid (Neo-Baroque Calls)

open access: yesPerformance Philosophy, 2017
In performance research today, as in the 1960s, the pressing question is: how to do things with systems. I return to the grid to attend both sites and modes of cultural practices and techniques  (technologies) that so powerfully harness and transform the
Lara D. Nielsen
doaj   +1 more source

The Complexity of Infinite Computations In Models of Set Theory [PDF]

open access: yesLogical Methods in Computer Science, 2009
We prove the following surprising result: there exist a 1-counter B\"uchi automaton and a 2-tape B\"uchi automaton such that the \omega-language of the first and the infinitary rational relation of the second in one model of ZFC are \pi_2^0-sets, while ...
Olivier Finkel
doaj   +1 more source

Undecidability of the Spectral Gap

open access: yesForum of Mathematics, Pi, 2022
We construct families of translationally invariant, nearest-neighbour Hamiltonians on a 2D square lattice of d-level quantum systems (d constant), for which determining whether the system is gapped or gapless is an undecidable problem.
Toby Cubitt   +2 more
doaj   +1 more source

Proximality and pure point spectrum for tiling dynamical systems [PDF]

open access: yes, 2013
32 pagesInternational audienceWe investigate the role of the proximality relation for tiling dynamical systems. Under two hypotheses, namely that the minimal rank is finite and the set of fiber distal points has full measure we show that the following ...
Barge, Marcy, Kellendonk, Johannes
core   +1 more source

Keratin 19 as a prognostic marker and contributing factor of metastasis and chemoresistance in high‐grade serous ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Keratin 19 (KRT19) is overexpressed in high‐grade serous ovarian cancer with high levels of Kallikrein‐related peptidases (KLK) 4–7 and is associated with poor survival. In vivo analyses demonstrate that elevated KRT19 increases peritoneal tumour burden.
Sophia Bielesch   +13 more
wiley   +1 more source

Spatial biology in cancer epigenetics

open access: yesMolecular Oncology, EarlyView.
Spatial epigenomics combines molecular profiling with tissue architecture to reveal how gene regulation is organized within intact tissues. In cancer, these technologies uncover the mechanisms driving tumor heterogeneity and microenvironmental interactions, opening new opportunities for biomarker discovery and precision medicine.
Eva Crespo‐García, Manel Esteller
wiley   +1 more source

Content-Based Tile Retrieval System [PDF]

open access: yes, 2010
A content-based tile retrieval system based on the underlying multispectral Markov random field representation is introduced. Single tiles are represented by our approved textural features derived from especially efficient Markovian statistics and supplemented with Local Binary Patterns (LBP) features representing occasional tile inhomogeneities ...
Pavel Vácha, Michal Haindl
openaire   +1 more source

Home - About - Disclaimer - Privacy