A new postdetection method of dispersion is proposed, based on a scheme previously implemented, and that additionally uses a Bit Error Rate (BER) analyser, which allows the extending of the monitoring window. The monitoring method was tested with transmission rates of up to 40 Gbit/s. It showed monitoring windows of at least ± 300 ps / nm, as well as the ability to adapt to different modulation formats, ...
The propagation of high power signals in optical fibers can lead to the fibre degradation and destruction. In this work we study three forms of degradation resulting from the high optical power propagation: i) increasing of the fiber coating temperature for bending situation; ii) degaradation of optical connectors; and iii) ignition and propagation of the fuse effect that can lead to the destruction of the opti...
INTRODUÇÃO: a responsabilidade do cirurgião-dentista pode ser entendida como obrigações de ordem penal, civil, ética e administrativa, às quais está sujeito no exercício de sua atividade. Assim, se comprovado um resultado lesivo ao paciente - por imprudência, imperícia ou negligência -, o cirurgião-dentista estará sujeito às penalidades previstas no Código Civil, sendo obrigado a satisfazer o dano e indenizar s...
We studied 386 cases of spinal cord injury to analyze the follow up of the patients admitted most of the time more than four hours, the majority of the injuries happening far from the attending health service and first specialized care received long after the accident. This is a clinical study based on data collected during hospitalization of the patients, operated or not, in a Brazilian public health service. ...
Human identification can be accomplished by several technical procedures, especially by the comparative analysis of dental documents. Nowadays, molecular biology introduced more effective resources for the human identification. However, these methods demand the previous definition of parameters to the collection of biological material, and the verification of the allele frequency of the population in which they...
o presente trabalho teve como objetivo desenvolver metodologias para possibilitar a determinação do sexo através de mensurações mandibulares, verificando-se a aplicabilidade da metodologia encontrada na bibliografia, em padrões nacionais, como meio complementar no processo de identificação. Foram estudadas 175 mandíbulas, de indivíduos adultos (acima de 20 anos) de procedência e sexo conhecidos, independentemen...
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