Encontrados 26 documentos, a visualizar página 1 de 3
Morphological shape analysis of children's actively generated viewpoints
Pereira, Alfredo F.; Lisboa, Isabel; Sousa, Emanuel; Santos, Jorge A.; James, Karin; Smith, LindaOur visual system develops in a world of three-dimensional objects, where children often control the dynamic visual experience they experience. Our previous experimental work was the first to analyse in detail what object views are selected in children’s unconstrained manipulation of physical objects. The key finding was the distribution of dwell time across all possible viewpoints; preferred viewpoints are aro...
Main axis of elongation dynamics and the planar bias in active object inspectio...
Pereira, Alfredo F.; Lisboa, Isabel; Sousa, Emanuel; Santos, Jorge A.; James, Karin; Jones, Susan; Smith, LindaPoster apresentado em "Leuven Christmas Applied Vision Association (AVA) Conference", em Leuven, Bélgica, 2013 ; As we turn our bodies, as we hold and move objects close to us and act on them, we generate dynamic views. Recent studies have examined the viewpoints that infants select during free play and found large developmental changes in dwell time distribution, namely an increasing preference for orienting ...
Caracterização acústica de pavimentos rodoviários e influência na emissão sonora
Pereira, Alfredo Herculano PintoTese de mestrado integrado. Engenharia Civil (Especialização em Construções). Faculdade de Engenharia. Universidade do Porto. 2010
Behavioral aspects of Caracu and Red Angus cattle breeds in a pasture with shad...
Geraldo, A. C. A. P. M.; Pereira, Alfredo Manuel Franco; Nogueira Filho, J.C.M.; Titto, E.A.L.The shade is an important resource in the extensive production systems in tropical regions. The aim of this study is to understand through behavioral analysis, the preferences of animals for resources for environmental protection. The experiment was conducted in the Biometeorology and Ethology Laboratory of FZEA-USP. Six male of Caracu and Red Angus cattle breeds were used. The animals were submitted to 2 diffe...
Respostas fisiológicas de vacas Holandesas frente a recurso de ventilação em es...
Vilela, R. A.; Fantinato Neto, P.; Pereira, Alfredo Manuel Franco; Leme, T. M. C.; Titto, C. G.Este estudo teve como objetivo avaliar a influência do recurso de ventilação sobre a fisiologia de vacas Holandesas alojadas em free-stall, durante o verão do sudeste brasileiro. Foram utilizadas 20 vacas Holandesas submetidas a dois tratamentos: controle e ventilação. Os parâmetros ambientais registrados foram temperatura e umidade relativa do ar e temperatura de globo negro. As variáveis fisiológicas avaliada...
Final energy demand in Portugal: How persistent it is and why it matters for en...
Pereira, Alfredo Marvão; Belbute, José ManuelThe objective of this paper is to analyze the degree of persistence of final energy demand in Portugal. Our results suggest the presence of a strong level of persistence for aggregate final energy demand. Final demand for gas is the most persistent component of energy demand, while the final demand for coal is the least persistent. In turn, final demand for petroleum and biomass tend to have levels of persisten...
In vitro studies of multiwalled carbon nanotube/ultrahigh molecular weight poly...
Reis, Joana; Kanagaraj, Subramani; Capela Silva, Fernando; Pereira, Alfredo; Potes, José; Mathew, MT; Simões, JoséCarbon nanotubes are highly versatile materials; new applications using them are continuously being developed. Special attention is being dedicated to the possible use of multiwalled carbon nanotubes in biomaterials contacting with bone. However, carbon nanotubes are also controversial in regards to effects exerted on living organisms. Carbon nanotubes can be used to improve the tribological properties of polym...
Sheep and goat saliva proteome analysis: A useful tool for ingestive behavior r...
Capela e Silva, Fernando; Lamy, Elsa; Costa, G.; Santos, R.; Potes, José; Pereira, Alfredo; Coelho, Ana V.; Sales Baptista, ElviraSheep and goats differ in diet selection, which may reflect different abilities to deal with the ingestion of plant secondary metabolites. Although saliva provides a basis for immediate oral information via sensory cues and also a mechanism for detoxification, our understanding of the role of saliva in the pre-gastric control of the intake of herbivores is rudimentary. Salivary proteins have important biologica...
Investimento em estradas e desenvolvimento regional em Portugal: O processo das...
Andraz, Jorge Miguel; Pereira, AlfredoO objectivo deste trabalho é investigar o impacto económico regional dos investimentos em infra-estruturas rodoviárias em Portugal, focando o caso das auto-estradas sem custos para o utilizador (auto-estradas Scuts).
Estudo experimental dos efeitos da sonoforese com Arnica montana sobre o proces...
Patrícia Pereira AlfredoA proposta deste estudo foi verificar o efeito da sonoforese com Arnica montana sobre a fase inflamatória aguda de uma lesão muscular. Para isso, 40 ratos Wistar machos (300±50 g), lesados cirurgicamente, foram divididos em 4 grupos: grupo controle (C), 10 ratos lesados, não submetidos a tratamento algum; grupo ultra-som (US), 10 ratos lesados, tratados com US; grupo ultrasom+ arnica (US+A), 10 ratos lesados, t...
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