Browsing by Issue Date, starting with "2005-07"
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- 7th Portuguese audiology conference and 11th workshop of the ESS-P.PORTOPublication . Tomé, David; Pinto, Ana Isabel; Lopes, Paula; Oliveira, Vasco; Carmo, Paulo do; Marques, AntónioLast year’s 7th Portuguese Audiology Conference and 11th Workshop, held at the School of Health, Polytechnic of Porto, Portugal, was entitled “Audiology in the Digital Era”, reflecting the boom in the application of technology and software in clinical and daily life.
- Pole-zero approximations of digital fractional-order integrators and differentiators using signal modeling techniquesPublication . Barbosa, Ramiro; Tenreiro Machado, J. A.; Ferreira, Isabel M.A novel strategy to the development of digital pole-zero approximations to fractional-order integrators and differentiators is presented here. The scheme is based in the signal modeling techniques applied to deterministic signals, namely the Padé, the Prony and the Shanks methods. It is shown that the illustrated algorithms yield good results both in the time and the frequency domains. Moreover, they are capable to give superior approximations than other existent approaches, namely the widely used CFE method. Several examples are given that demonstrate the effectiveness of the proposed techniques.
- Experimental Apparatus for Vibration Analysis in RoboticsPublication . Lima, Miguel F. M.; Tenreiro Machado, J. A.; Crisóstomo, ManuelRobotic systems use different types of sensors both in control and in environment perception. Those sensors can be digital encoders, tachometers, accelerometers, force sensors,current sensors and many others. In this paper an experimental setup is presented to study vibrations and impacts. The system acquires data from the sensors, in real time, and, in a second phase, processes it through an analysis package. Several examples with experimental results are carried out showing the functionalities of the developed apparatus.
- Avaliação do impacte de uma acção de educação para a saúde sobre incontinência urinária de stress.Publication . Santos, Paula Clara; Mendonça, Denisa; Alves, Odete; Barbosa, Alcindo MacielAnalisar o efeito de uma ação de educação para a saúde no pós-parto relativamente á Incontinência Urinária de Stress (IUS) no distrito de Viana do Castelo.
- Rastreio do cancro da mama e do colo uterino numa coorte de mulheres do distrito de Viana do CasteloPublication . Alves, Odete; Mendonça, Denisa; Santos, Paula Clara; Barbosa, Alcindo MacielO objetivo deste estudo foi analisar a adesão aos planos de rastreio do cancro da mama e do colo do útero no distrito de Viana do Castelo.
- Is there sufficient training of health care staff on noise reduction in neonatal intensive care units? A pilot study from neonoise projectPublication . Alberto Alves Carvalhais, Carlos; Santos, Joana; Vieira Da Silva, Manuela; Xavier, AnaEvidence indicates that exposure to high levels of noise adversely affects human health, and these effects are dependent upon various factors. In hospitals, there are many sources of noise, and high levels exert an impact on patients and staff, increasing both recovery time and stress, respectively. The goal of this pilot study was to develop, implement, and evaluate the effectiveness of a training program (TP) on noise reduction in a neonatal intensive care unit (NICU) by comparing the noise levels before and after the implementation of the program. In total, 79 health professionals participated in the study. The measurements of sound pressure levels took into account the layout of the unit and locations of the main sources of noise.