Results 1 to 10 of about 28,717 (85)

Síndrome de Pele Sensível: Revisão da Literatura de uma Entidade Emergente [PDF]

open access: yesRevista da Sociedade Portuguesa de Dermatologia e Venereologia, 2021
A síndrome de pele sensível (SPS) pode ser definida pela ocorrência de sensações desagradáveis como picada, ardor, dor ou prurido após a exposição da pele a estímulos físicos, químicos ou térmicos que normalmente não causariam estes ...
Frederico Bonito   +2 more
doaj   +3 more sources

ALTERAÇÕES FISIOLÓGICAS E DERMATOSES ESPECÍFICAS DA GRAVIDEZ

open access: yesRevista da Sociedade Portuguesa de Dermatologia e Venereologia, 2016
Na gravidez existem alterações marcadas do metabolismo e da imunidade na mulher. Algumas destas alterações têm repercussões na pele. A maioria é tão comum e inócua que fazem parte do espectro fisiológico da gravidez. Por outro lado existem dermatoses que
Susana Brás   +3 more
doaj   +1 more source

Dermatoses em Africanos / Dermatoses in Africans

open access: yesActa Médica Portuguesa, 2018
Nowadays, due to the increasingly frequent migratory circuits in Europe and the increment of the migrant population in Portugal, mainly in Lisbon metropolitan area, it is more and more common to find several dermatological conditions and disorders in ...
Ana Marcos- Pinto   +2 more
doaj   +1 more source

Optimal Approximate Polytope Membership [PDF]

open access: yes, 2016
In the polytope membership problem, a convex polytope $K$ in $R^d$ is given, and the objective is to preprocess $K$ into a data structure so that, given a query point $q \in R^d$, it is possible to determine efficiently whether $q \in K$. We consider this problem in an approximate setting and assume that $d$ is a constant.
arxiv   +1 more source

Volume rigidity and algebraic shifting [PDF]

open access: yesarXiv, 2022
We study the generic volume rigidity of $(d-1)$-dimensional simplicial complexes in $\mathbb R^{d-1}$, and show that the volume rigidity of a complex can be identified in terms of its exterior shifting. In addition, we establish the volume rigidity of triangulations of several $2$-dimensional surfaces and prove that, in all dimensions $>1$, volume ...
arxiv  

A Simple Randomized $O(n \log n)$--Time Closest-Pair Algorithm in Doubling Metrics [PDF]

open access: yesJournal of Computational Geometry (JoCG), 11(1), 2020, pp. 507-524, 2020
Consider a metric space $(P,dist)$ with $N$ points whose doubling dimension is a constant. We present a simple, randomized, and recursive algorithm that computes, in $O(N \log N)$ expected time, the closest-pair distance in $P$. To generate recursive calls, we use previous results of Har-Peled and Mendel, and Abam and Har-Peled for computing a sparse ...
arxiv   +1 more source

Sulfur Volcanism on Io [PDF]

open access: yes, 2006
In February 2003, March 2003 and January 2004 Pele plume transmission spectra were obtained during Jupiter transit with Hubble's Space Telescope Imaging Spectrograph (STIS), using the 0.1 arcsec long slit and the G230LB grating. The STIS spectra covered the 2100-3100 A wavelength region and extended spatially along Io's limb both northward of Pele. The
arxiv   +1 more source

Quantum random number generation based on a perovskite light emitting diode [PDF]

open access: yesarXiv, 2022
The recent development of perovskite light emitting diodes (PeLEDs) has the potential to revolutionize the fields of optical communication and lighting devices, due to their simplicity of fabrication and outstanding optical properties. Here we demonstrate, for the first time, that PeLEDs can also be used in the field of quantum technologies by ...
arxiv  

A differential version of the Chebyshev-Markov-Stieltjes inequalities [PDF]

open access: yesJournal of Approximation Theory 196 (2015): 13-54, 2014
We show that a differential version of the classical Chebyshev-Markov-Stieltjes inequalities holds for a broad family of weight functions. Such a differential version appears to be new. Our results apply to weight functions which are bounded away from zero and piecewise absolutely continuous and yield effective estimates when the weight satisfies ...
arxiv   +1 more source

Chebyshev-type Quadratures for Doubling Weights [PDF]

open access: yesConstructive Approximation 45 (2017), 193-216, 2015
A Chebyshev-type quadrature for a given weight function is a quadrature formula with equal weights. In this work we show that a method presented by Kane may be used to produce tight bounds for the minimal number of nodes required in Chebyshev-type quadratures for doubling weight functions.
arxiv   +1 more source

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