Random regression models using Legendre orthogonal polynomials to evaluate the milk production of Alpine goats.

The objective of this study was to identify the best random regression model using Legendre orthogonal polynomials to evaluate Alpine goats genetically and to estimate the parameters for test day milk yield. On the test day, we analyzed 20,710 records of milk yield of 667 goats from the Goat Sector of the Universidade Federal de Viçosa. The evaluated models had combinations of distinct fitting orders for polynomials (2-5), random genetic (1-7), and permanent environmental (1-7) fixed curves and a number of classes for residual variance (2, 4, 5, and 6). WOMBAT software was used for all genetic analyses. A random regression model using the best Legendre orthogonal polynomial for genetic evaluation of milk yield on the test day of Alpine goats considered a fixed curve of order 4, curve of genetic additive effects of order 2, curve of permanent environmental effects of order 7, and a minimum of 5 classes of residual variance because it was the most economical model among those that were equivalent to the complete model by the likelihood ratio test. Phenotypic variance and heritability were higher at the end of the lactation period, indicating that the length of lactation has more genetic components in relation to the production peak and persistence. It is very important that the evaluation utilizes the best combination of fixed, genetic additive and permanent environmental regressions, and number of classes of heterogeneous residual variance for genetic evaluation using random regression models, thereby enhancing the precision and accuracy of the estimates of parameters and prediction of genetic values.

Termocoagulacao percutanea em neuralgia do trigemeo. / Thermocoagulation percutaneous in trigeminal neuralgia

Os autores relatam os resultados obtidos em 25 pacientes estudados no periodo de abril de 1981 a setembro de 1982, portadores de neuralgia do trigemeo, tratados pelo metodo de termocoagulacao por radiofrequencia. Destes, 24 tinham neuralgia essencial do trigemeo e apenas 1 tinha neuralgia atipica do trigemeo. Nos primeiros, nao houve recorrencia de dor apos o procedimento e no paciente com quadro atipico foi necessario repetir o ato cirurgico apos 72 horas da primeira intervencao, quando, entao, o paciente ficou completamente assintomatico. Todos os doentes foram acompanhados em ambulatorio por um periodo minimo de 6 meses. A simplicidade do metodo, a baixa incidencia de complicacoes quando comparada a outras tecnicas, alem da possibilidade de o procedimento ser realizado ambulatorialmente e o baixo tempo de permanencia hospitalar permitem recomendar este metodo como sendo de escolha para o tratamento cirurgico da neuralgia do trigemeo

[Ectopic meningioma of the calvarium: report of a case]. / Meningeoma ectópico do calvário: registro de um caso.

A case of calvarial meningeoma in a 42 year old female is reported. Arising from the inner table of the skull, it projected a extracranial mass without neurological simptomatology. The surgical procedure give good results. Some aspects of the literature and radiologics finds are commented. The infrequency of this pathology is resulted.

Meningeoma ectopico do calvario: registro de um caso. / Ectopic meningioma of the calvarium: report of a case

Os autores relatam um caso de meningeoma ectopico de calvario, submetido a tratamento cirurgico com boa evolucao. Comentam alguns aspectos referidos na literatura, ressaltando as caracteristicas radiologicas. Justificam o presente relato pela infrequencia do mesmo, bem como pelo bom prognostico quando submetido a tratamento adequado

[Intraventricular meningioma. Report of a case]. / Meningeoma intraventricular. Registro de um caso.

A case of meningeoma located at the right lateral ventricle is reported. The tumor was successfully removed by surgery. The authors justified this report by the infrequency of the pathology. Some aspects of the literature are commented.