This study aimed to evaluate the effect of five salt solutions in the maintenance of morphological features of cortical alveolus, hydration and fertilization capacity of Prochilodus lineatus oocytes. For this purpose, five saline solutions were tested: Ringer's solution, Ringer's lactate solution, Hank's balanced salt solution (HBSS), Hank's balanced salt solution without calcium (HBSS without calcium) and solution for salmonid eggs. Oocytes were maintained for 2 hr in saline solution with controlled temperature subsequently evaluated for hydration, cortical activation and fertilization ability. In the evaluation of the fertilization ability, two controls were used: C1-fertilized oocytes after extrusion-and C2-oocytes kept in ovarian fluid and fertilized after 2 hr. There was a significant reduction in the viability of oocytes C2 (28.8% ± 12.9%) compared to C1 (65.3% ± 26.7%), and no significant differences were found between treatments HBSS and HBSS without calcium and C2. Only HBSS and HBSS without calcium maintained the non-activated state of the gametes, with a fertilization rate of 16.4% ± 6.7% and 5.6% ± 2.3%, respectively; however, they did not extend the viability of oocytes, such that they continued to undergo degradation during the storage period, similar to oocytes retained only in ovarian fluid.
resumoEste artigo pretende analisar as características principais das políticas sociais em tempos de neoliberalismo tendo como pano de fundo a necessária relação entre Estado e capital. O Estado, constituído sobre a base material do capital, configurouse como estrutura de comando político que age sobre as contradições do sistema do capital. A partir de tal relação, afirmamos que pensar a face neoliberal das políticas sociais do Estado atualmente é pensar a existência de um Estado máximo, a favor do capital, já que o Estado, cumprindo sua função política essencial, retira-se da oferta de grande parte dos serviços públicos e abre novos campos para a exploração capitalista em tempos de crise estrutural do capital.Palavras chave: Políticas sociais. Neoliberalismo. Estado. Capital.
Este artigo pretende tratar da natureza do sistema sociometabólico do capital, identificando seus componentes e apreendendo sua dinâmica interna. No âmbito das formulações do filósofo húngaro István Mészáros, as partes fundantes desse sistema totalizante de organização e controle social – em suas versões capitalista e pós-capitalista – estariam expressas no tripé capital, trabalho e Estado.
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