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2008
Amado, M. P., A. J. Pinto, and A. C. Lopes A Infra-estruturação em Aglomerados Urbanos em Expansão. 5º CLEM . Maputo, Moçambique: INEGI, ISBN: 978-972-8826-19-2, 2008.
Ramos, Ana, Sacha Coesel, Ana Marques, Marta Rodrigues, Alexandra Baumgartner, João Noronha, Amélia Rauter, Bertram Brenig, and João Varela. "Isolation and characterization of a stress-inducible Dunaliella salina Lcy-beta gene encoding a functional lycopene beta-cyclase." Applied Microbiology and Biotechnology. 79.5 (2008): 819-828.
Reguengo, R., V. Lúcio, and C. Chastre Ligação Pilar - Fundação com Armaduras Salientes do Pilar, em Estruturas Pré-Fabricadas. 2º Congresso Nacional de Pré-Fabricação em Betão. Lisboa: ANIPB, 2008. Abstractreguengo2008luch_-_2_cnp_-_lnec.pdf

A ligação pilar-fundação tem um papel fundamental no comportamento das estruturas pré-fabricadas, em particular, na presença de acções horizontais, como a acção dos sismos e do vento, que introduzem esforços elevados na base dos pilares. Um dos sistemas de ligação pilar-fundação usados em estruturas pré-fabricadas consiste em deixar na extremidade inferior dos pilares armaduras salientes que são introduzidas em negativos executados nas fundações. Estes negativos são posteriormente injectados com grout para garantir a ligação. No presente trabalho foram estudadas diferentes soluções de negativos para ligação das armaduras do pilar à fundação, tendo sido realizados ensaios monotónicos para analisar o seu comportamento. Nesta comunicação apresentam-se e discutem-se os resultados obtidos da análise experimental efectuada.

Reguengo, R., V. Lúcio, and C. Chastre Ligação pilar – fundação com armaduras salientes do pilar, em estruturas pré-fabricadas – Ensaios monotónicos e ensaios cíclicos. Betão Estrutural 2008. Guimarães: UMinho, 2008. Abstractreguengo2008luch_-_be2008.pdf

A ligação pilar-fundação tem um papel fundamental no comportamento das estruturas pré-fabricadas,
em particular, na presença de acções horizontais, como a acção dos sismos e do vento. Um dos sistemas de ligação pilar-fundação usados em estruturas pré-fabricadas consiste em deixar na extremidade inferior dos pilares armaduras salientes que são introduzidas em negativos executados nas fundações, sejam elas sapatas ou maciços de encabeçamento de estacas. Estes negativos são posteriormente injectados com “grout” para garantir a ligação. Foram estudados diferentes soluções de negativos para ligação das armaduras do pilar na fundação. Foram realizados ensaios monotónicos e cíclicos, para analisar não só o comportamento às acções estáticas mas também para a acção sísmica. No presente trabalho apresentam-se os resultados obtidos com a análise experimental efectuada. O estudo realizado permite apresentar recomendações para projecto e quais os tipos de ligações com melhor desempenho.

Araujo, R., R. Castanhinha, and O. Mateus. "Major trends in the evolution of teeth and mandibles in ornithopod dinosaurs." Livro de Resumos de Tercer Congreso Latinoamericano de Paleontología de Vertebrados. Neuquén, Argentina 2008. 18. Abstractaraujo_et_al._2008._major_trends_in_the_evolution_of_teeth_and_mandibles_in_ornithopod_dinosaurs.pdf

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S. Agostinho, A. Moreira, A. Marques, J. Araújo, I. S. Brito, R. Ferreira, and R. Raminhos. "A Metadata Driven Approach for Aspect-Oriented Requirements Analysis." 10th International Conference on Enterprise Information Systems (ICEIS 2008). ICEIS, 2008. Abstract

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Amado, M. P., A. J. Pinto, and C. V. Santos Methods in sustainable urban process. Sustainable Construction – Materials and Practices. Lisboa Portugal: IOS Press BV, ISBN: 978-1-58603-785-7, 2008.
Caeiro, Frederico, and M.Ivette Gomes. "Minimum-variance reduced-bias tail index and high quantile estimation." REVSTAT. 6 (2008): 1-20. Abstract

{Summary: Heavy tailed-models are quite useful in many fields, like insurance, finance, telecommunications, internet traffic, among others, and it is often necessary to estimate a high quantile, i.e., a value that is exceeded with a probability $p$, small. The semiparametric estimation of this parameter relies essentially on the estimation of the tail index, the primary parameter in statistics of extremes. Classical semi-parametric estimators of extreme parameters show usually a severe bias and are known to be very sensitive to the number $k$ of top order statistics used in the estimation. For $k$ small they have a high variance, and for large $k$ a high bias. Recently, new second-order ``shape'' and ``scale'' estimators allowed the development of second-order reduced-bias estimators, which are much less sensitive to the choice of $k$. Here we study, under a third order framework, minimum-variance reduced-bias (MVRB) tail index estimators, recently introduced in the literature, and dependent on an adequate estimation of second order parameters. The improvement comes from the asymptotic variance, which is kept equal to the asymptotic variance of the classical Hill estimator [ıt B. Hill}, Ann. Stat. 3, 1163–1174 (1975; Zbl 0323.62033)] provided that we estimate the second order parameters at a level of a larger order than the level used for the estimation of the first order parameter. The use of those MVRB tail index estimators enables us to introduce new classes of reduced-bias high quantile estimators. These new classes are compared among themselves and with previous ones through the use of a small-scale Monte Carlo simulation.}

A. Sousa, U. Kulesza, A. Rummler, N. Arquentil, R. Mitschke, A. Moreira, Vasco Amaral, and J. Araújo. "A Model-Driven Traceability Framework to Software Product Line Development." ECMDA Traceability Workshop ECMDA-TW ( 2008 Proceedings). Ed. Tor Neple Richard Paige Jon Oldvic, Goran olsen. SINTEF ICT, 2008. Abstract

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G. Mussbacher, D. Amyot, J. Araújo, and A. Moreira. "Modeling software product lines with AoURN." Proceedings of the 2008 AOSD workshop on Early aspects. ACM Electronic Library, 2008. Abstract

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Bras, A. R., J. P. Noronha, A. M. M. Antunes, M. M. Cardoso, A. Schoenhals, F. Affouard, M. Dionisio, and N. T. Correia. "Molecular Motions in Amorphous Ibuprofen As Studied by Broadband Dielectric Spectroscopy." J. Phys. Chem. B. 112 (2008): 11087-11099.
A. Marques, A. Moreira, and J. Araújo. "Multi-Dimensional Composition by Objective in Aspect-Oriented Requirements Analysis." Workshop on Early Aspects at the 30th International Conference on Software Engineering (ICSE'08). IEEE Computer Society, 2008. Abstract

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Catarino, I., G. Bonfait, and L. Duband. "Neon Gas-Gap Heat Switch." Cryogenics. 48 (2008): 17-25. Abstract

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"A new path integral approximation to photon propagation in turbid media." Waves in Random and Complex Media. 18.4 (2008): 669-692.Website
Schulp, AS, M. J. Polcyn, O. Mateus, LL Jacobs, and ML Morais. "A new species of Prognathodon (Squamata, Mosasauridae) from the Maastrichtian of Angola, and the affinities of the mosasaur genus Liodon." Proceedings of the Second Mosasaur Meeting, Fort Hays Studies Special Issue 3, Fort Hays State University, Hays, Kansas. 2008. 1-12. Abstractschulp_et_al_2008_prognathodon_kianda.pdf

Here we describe a new species of the mosasaurine genus Prognathodon from the Maastrichtian of Namibe, Angola, on the basis of five specimens which represent most of the cranial skeleton including the diagnostic quadrate. Phylogenetic analysis shows this new taxon, P. kianda nov. sp., to be the sister taxon to all other species of Prognathodon. It is unique amongst Prognathodon in possessing a high marginal tooth count and relatively small pterygoid teeth. The tooth morphology in the new taxon is reminiscent of some species of the genus Liodon, allowing association of Liodon-like dentition with otherwise Prognathodon-like crania, and thus resolves the long-standing question of the phylogenetic affinities of Liodon.

Mateus, O., SCR Maidment, and NA Christiansen. "A new specimen aff. Dacentrurus armatus (Dinosauria: Stegosauridae) from the Late Jurassic of Portugal." Livro de Resumos de Tercer Congreso Latinoamericano de Paleontologia de Vertebrados. Neuquén, Argentina 2008. 157. Abstractmateus_et_al_2008_a_new_specimen_aff._dacentrurus_armatus_dinosauria_stegosauridae_from_the_late_jurassic_of_portugal.pdf

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Fernandes, Vítor H. "Normally ordered semigroups." Glasg. Math. J.. 50 (2008): 325-333.Website
Oliveira, F., and A. J. Soares. "A note on a Discrete Boltzmann Equation with multiple collisions." Journal of Mathematical Analysis and Applications. 341.2 (2008): 1476-1481.Website
Crucho, C. C., K. T. Petrova, R. C. Pinto, and M. T. Barros. "Novel Unsaturated Sucrose Ethers and Their Application as Monomers." Molecules. 13.4 (2008): 762-770. DOI: 10.3390/molecules13040762.
Cismaşiu, C., and F. P. Amarante dos Santos. "Numerical simulation of superelastic shape memory alloys subjected to dynamic loads." Smart Materials and Structures. 17.2 (2008). AbstractWebsite

Superelasticity, a unique property of shape memory alloys (SMAs), allows the material to recover after withstanding large deformations. This recovery takes place without any residual strains, while dissipating a considerable amount of energy. This property makes SMAs particularly suitable for applications in vibration control devices. Numerical models, calibrated with experimental laboratory tests from the literature, are used to investigate the dynamic response of three vibration control devices, built up of austenitic superelastic wires. The energy dissipation and re-centering capabilities, important features of these devices, are clearly illustrated by the numerical tests. Their sensitivity to ambient temperature and strain rate is also addressed. Finally, one of these devices is tested as a seismic passive vibration control system in a simplified numerical model of a railway viaduct, subjected to different ground accelerations.

Fernandes, Vítor H. "On divisors of pseudovarieties generated by some classes of full transformation semigroups." Algebra Colloq.. 15 (2008): 581-588.
Malheiro, A. "On Finite Semigroup Cross-Sections and Complete Rewriting Systems." International Conference on Theoretical and Mathematical Foundations of Computer Science, TMFCS-08, Orlando, Florida, USA, July 7-10, 2008. 2008. 59-63. Abstract

In this paper we obtain a [finite] complete rewriting system defining a semigroup/monoid S, from a given finite
right cross-section of a subsemigroup/submonoid defined by a [finite] complete presentation. In the semigroup case the subsemigroup must have a right identity element which must also be part of the cross-section. In the monoid case the submonoid and the cross-section must include the identity of the semigroup. The result on semigroups allow us to show that if G is a group defined by a [finite] complete rewriting system then the completely simple semigroup M[G; I, J; P] is also defined by a [finite] complete rewriting system.

Rato, R. T., M. D. Ortigueira, and AG Batista. "On the HHT, its problems, and some solutions." Mechanical Systems and Signal Processing .22 (2008): 1374-1394.
Karlovich, Alexei Yu., and L. Maligranda. "On the interpolation constant for subadditive operators in Orlicz spaces." Proceedings of the International Symposium on Banach and Function Spaces II (ISBFS 2006), Kyushu Institute of Technology, Kitakyushu, Japan, 14-17 September 2006. Eds. M. Kato, and L. Maligranda. Yokohama: Yokohama Publishers, 2008. 85-101.
Ortigueira, M. D., and AG Batista. "On the relation between the fractional Brownian motion and the fractional derivatives." Physics Letters . A.372 (2008): 958-968.