Angel Barajas

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Multiple populations of aminergic neurons are affected in Parkinson's disease (PD), with serotonergic and noradrenergic loci responsible for some non-motor symptoms. Environmental toxins, such as the dithiocarbamate fungicide ziram, significantly increase the risk of developing PD and the attendant spectrum of both motor and non-motor symptoms. The(More)
An earlier version of this paper was presented at the 6th Annual International Symposium on Economic Theory Policy and Applications. ABSTRACT During decades, tests have been developed to verify whether the beta is the best tool to explain the returns of securities on the stock market. Moreover, the value of the beta and its coefficient of determination(More)
After several consecutive seasons in the league, the Campeonato Brasileiro may return to the playoffs format. The Brazilian Football Confederation (CBF) and some Brazilian clubs commented that this format will provide higher competitive balance and increase the interest of Brazilian football fans. Therefore, the objective of this paper is to assess the(More)
The neurodegenerative effects of Parkinson's disease (PD) are marked by a selective loss of dopaminergic (DA) neurons. Epidemiological studies suggest that chronic exposure to the pesticide paraquat may increase the risk for PD and DA cell loss. However, combined exposure with additional fungicide(s) including maneb and/or ziram may be required for(More)
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