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RESUMO - Azospirillum brasilense EFFICIENCY IN COMBINATION WITH DOSES OF NITROGEN IN THE DEVELOPMENT OF MAIZEABSTRACT -This study aimed to evaluate the effect of the use of diazotrophic bacterium Azospirillum brasilense inoculated to seeds in combination with nitrogen on the development of corn plants. The experiment was carried out in field using a randomized block design in a double factorial arrangement with four reapplications.. The factor 1: with and without the bacterium application in the seed; and factor 2: six nitrogen doses: 0, 80, 105, 130, 155 and 180 kg ha -1 .The trangenic maize hybrid 2B587 Hx was used. The morphological evaluations of plant and ear were done at 20, 40, 60, 80 and 100 days after emergence (DAE). Grain yield was measured at 115 DAE. The application of diazotrophic bacterium Azospirillum brasilense solution via the seeds, with or without synthetic nitrogen did not interfere with plant development and yield of maize. The adoption of this practice does not replace the use of nitrogen fertilizers nor allows dose reduction. The addition of nitrogen fertilizers promotes greater plant growth and increased productivity.

We demonstrated the importance of appropriate MRI sequences for diagnosis of the most frequent brain lesions in TS. Our study reinforces the fact that each sequence has a particular application according to the type of TS lesion. Gd injection might be useful in detecting SGCA; however, the parameters of size and location are also important for a presumptive diagnosis of these tumors.

The FLAIR sequence was superior for presumptive diagnosis and localization of acute and subacute low-grade SAH, representing a potential tool in this setting.

The clinical features of multiple system atrophy (MSA) include four domains: autonomic failure/urinary dysfunction, Parkinsonism, cerebellar ataxia, and corticospinal tract dysfunction. Although the diagnosis of definite MSA requires pathological confirmation, magnetic resonance imaging (MRI) studies have been shown to contribute to the diagnosis of MSA. Although pyramidal tract dysfunction is frequent in MSA patients, signs of pyramidal tract involvement are controversially demonstrated by MRI. We evaluated the pyramidal involvement in 10 patients (7 women) with clinically probable MSA, detecting the presence of spasticity, hyperreflexia, and Babinski sign, as well as demonstrating degeneration of the pyramidal tract and primary motor cortex by MRI in all of them. Our article also discusses key radiological features of this syndrome. In MSA, pyramidal tract involvement seems to be more frequent than previously thought, and the clinicoradiological correlation between pyramidal tract dysfunction and degeneration may contribute to the understanding of the clinical hallmarks of MSA. MRI may also add information regarding the differential diagnosis of this syndrome.