16,375 research outputs found

    Hybrid Quasicrystals, Transport and Localization in Products of Minimal Sets

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    We consider convex combinations of finite-valued almost periodic sequences (mainly substitution sequences) and put them as potentials of one-dimensional tight-binding models. We prove that these sequences are almost periodic. We call such combinations {\em hybrid quasicrystals} and these studies are related to the minimality, under the shift on both coordinates, of the product space of the respective (minimal) hulls. We observe a rich variety of behaviors on the quantum dynamical transport ranging from localization to transport.Comment: 3 figures. To appear in Journal of Stat. Physic

    Dendrimer nanoparticles for colorectal cancer applications

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    Accepted ManuscriptCancer nanotechnology is a prolific field of research, where nanotools are employed to diagnose and treat cancer with unprecedented precision. Targeted drug delivery is fundamental for more efficient cancer treatments. For this, nanoparticles have been extensively used during the last years in order to improve the specificity, selectivity and controlled release of drug delivery. It holds potential in minimizing systemic toxicity through the development of functionalized particles for targeted treatment. Among all the type of nanoparticles, dendrimers display several advantages, which make them ideal candidates for improved and targeted drug delivery in cancer research. Dendrimers can transport large amount of drug into specific areas. In addition, they can be employed for monitoring the progress of the treatment process, with an  unprecedented theranostic capability. Special emphasis is given in colorectal cancer, as well as the preferred employed strategies for producing drug-loaded/functionalized NPâ s for cancer therapy in the last years

    Consorciação de repolho com espécies aromáticas.

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    bitstream/item/51614/1/cot-113.pd

    Avaliação do comportamento de cultivares de abacaxi na região da Transamazônica.

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    bitstream/item/63153/1/Altamira-PA17.pd

    Compactly Supported Wavelets Derived From Legendre Polynomials: Spherical Harmonic Wavelets

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    A new family of wavelets is introduced, which is associated with Legendre polynomials. These wavelets, termed spherical harmonic or Legendre wavelets, possess compact support. The method for the wavelet construction is derived from the association of ordinary second order differential equations with multiresolution filters. The low-pass filter associated with Legendre multiresolution analysis is a linear phase finite impulse response filter (FIR).Comment: 6 pages, 6 figures, 1 table In: Computational Methods in Circuits and Systems Applications, WSEAS press, pp.211-215, 2003. ISBN: 960-8052-88-
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