Ministério público na fronteira entre a justiça e a política

Analisa o processo de reconstrução institucional do Ministério Público brasileiro. Examina os principais textos legais que, nas últimas duas décadas, redefiníram as atividades do Ministério Público. Explica como a Constituição de 1988, ao consolidar normas anteriormente isoladas, produziu um arranjo institucional que introduziu uma extensa judicialização da politica e uma politização das instituições judiciais, especialmente do Ministério Público. Aborda a renovação doutrinal e ideológica dos promotores públicos. Discute a questão do combate à corrupção por meio do sistema judiciário. Aponta alguns dos limites e contradições da judicialização da política e da politização do Ministério Público no Brasil. Enfoca a questão da efetividade processual e o problema do foro privilegiado

A new route for redress in the Samarco case? An overview of the simplified indemnification system's (un)lawfulness

On 5 November 2015, the Fundão Dam collapsed, causing the most devastating tailings dam disaster to date. The dam was operated by Samarco S.A., a joint venture by Vale, Brazil’s biggest mining company, and BHP Billiton, the world’s largest mining company. Its tailings travelled down the Doce River for ca 700 kilometres until they reached the ocean, affecting 42 municipalities, two states, and thousands of communities along the way. The disaster caused myriad social, environmental and economic impacts: nineteen individuals were killed, and thousands endured physical or psychological harm; water resources and the soil were polluted; habitats were irreversibly destroyed; and the local economy suffered long-lasting damage. Traditional and indigenous communities were especially harmed, as their historical, social, religious and cultural relationships with their land led to even more profound harms

Band structure of Si/Ge core-shell nanowires along [110] direction modulated by external uniaxial strain

Strain modulated electronic properties of Si/Ge core-shell nanowires along [110] direction were reported based on first principles density-functional theory calculations. Particularly, the energy dispersion relationship of the conduction/valence band was explored in detail. At the {\Gamma} point, the energy levels of both bands are significantly altered by applied uniaxial strain, which results in an evident change of band gap. In contrast, for the K vectors far away from {\Gamma}, the variation of the conduction/valence band with strain is much reduced. In addition, with a sufficient tensile strain (~1%), the valence band edge (VBE) shifts away from {\Gamma}, which indicates that the band gap of the Si/Ge core-shell nanowires experiences a transition from direct to indirect. Our studies further showed that effective masses of charge carriers can be also tuned by the external uniaxial strain. The effective mass of the hole increases dramatically with a tensile strain, while strain shows a minimal effect on tuning the effective mass of the electron. Finally, the relation between strain and the conduction/valence band edge is discussed thoroughly in terms of site-projected wave-function characters.Comment: 3 tables, 7 figures, Accepted by J. Phys. Condens. Matte

Weak spatial-genetic structure in a native invasive, the southern pine beetle (Dendroctonus frontalis), across the eastern United States

The southern pine beetle, Dendroctonus frontalis, is a native pest of pine trees that has recently expanded its range into the northeastern United States. Understanding its colonization, dispersal, and connectivity will be critical for mitigating negative economic and ecological impacts in the newly invaded areas. Characterization of spatial-genetic structure can contribute to this; however, previous studies have reached different conclusions about regional population genetic structure, with one study reporting a weak east-west pattern, and the most recent reporting an absence of structure. Here we systematically assessed several explanations for the absence of spatial-genetic structure. To do this, we developed nine new microsatellite markers and combined them with an existing 24-locus data matrix for the same individuals. We then reanalyzed this full dataset alongside datasets in which certain loci were omitted with the goal of creating more favorable signal to noise ratios. We also partitioned the data based on the sex of D. frontalis individuals, and then employed a broad suite of genotypic clustering and isolation-by-distance (IBD) analyses. We found that neither inadequate information content in the molecular marker set, nor unfavorable signal-to-noise ratio, nor insensitivity of the analytical approaches could explain the absence of structure. Regardless of dataset composition, there was little evidence for clusters (i.e., distinct geo-genetic groups) or clines (i.e., gradients of increasing allele frequency differences over larger geographic distances), with one exception: significant IBD was repeatedly detected using an individual-based measure of relatedness whenever datasets included males (but not for female-only datasets). This is strongly indicative of broad-scale female-biased dispersal, which has not previously been reported for D. frontalis, in part owing to logistical limitations of direct approaches (e.g., capture-mark-recapture). Weak spatial-genetic structure suggests long-distance connectivity and that gene flow is high, but additional research is needed to understand range expansion and outbreak dynamics in this species using alternate approaches

Eight cycles of recurrent selection for resistance to angular leaf spot in common bean.

The genetic progress (GP) was evaluated after eight cycles of recurrent selection for resistance to angular leafspot in common bean and indirect gain for yield and grain type. The base population (Cycle-0) was obtained from the diallelcross of seven lines with carioca grain and ten resistance sources. To obtain Cycle I, the most resistant S0 plants of Cycle 0were intercrossed. The same procedure was adopted in the subsequent cycles. GP for resistance to the pathogen was estimatedby the overall average of the progenies of each cycle in comparison with control Carioca MG and for productivity incomparison to the controls Carioca MG and Pérola. Lines of the first six cycles were used for grain type. No GP was detectedfor resistance to angular leaf spot. However, the indirect yield gain was 2.3% and 2.5% in the selection for grain type, withvalues similar to those obtained by direct selection for these traits

Nesting in the lizard Phyllopezus pollicaris (Squamata: Phyllodactylidae) and a phylogenetic perspective on communal nesting in the family

Ninhadas comunais são encontradas em várias espécies de répteis. As hipóteses que explicam a evolução desse comportamento ainda são controversas, mas serão melhor compreendidas à medida que mais registros de ninhadas comunais forem descritos na literatura. Neste estudo, registramos duas ninhadas comunais de Phyllopezus pollicaris, incluindo a maior ninhada conhecida para a espécie. Este é o primeiro estudo a registrar ninhadas comunais para uma espécie de Squamata em uma região central do Cerrado. Além disso, também apresentamos fotografias das ninhadas, assim como medidas detalhadas e peso dos neonatos. As ninhadas foram encontradas durante a estação seca, em contraste com o padrão reprodutivo previamente descrito para a espécie na periferia do Cerrado. Nós também realizamos uma extensa revisão bibliográfica a respeito de ninhadas comunais na família Phyllodactylidae e apresentamos os resultados no contexto de uma árvore filogenética dos gêneros da família. Finalmente, sugerimos que estudar a correlação entre a evolução de ninhadas comunais e o investimento reprodutivo se tornará um campo de estudo fértil à medida que mais informações sobre ninhadas comunais estiverem disponíveis na literatura científica.Communal nesting occurs in many reptile species. The hypotheses that explain the evolution of such behaviours are still controversial, but will be better understood as more communal nesting records are described in the literature. We report the findings of two communal nests of Phyllopezus pollicaris, including the largest known nest for the species. Our study is the first to provide a communal nesting record for squamate species in a Cerrado core area. We provide nest photographs and detailed neonate measurements and weight. Nests were found during the dry season, in contrast with the reproduction pattern previously described for the species in the Cerrado periphery. We also conducted an extensive literature review seeking all available information on communal nesting information in Phyllodactylidae, and present this information in the context of a phylogenetic tree of phyllodactylid genera. We suggest that studying the correlation between communal nesting evolution and reproductive investment will become a fertile field as more information on lizard nesting becomes available in the literature

Influência do tamanho da semente na qualidade fisiológica e na produtividade da cultura da soja.

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Delivery x balcão: um estudo de caso em uma rede de fast-food: Deliver x counter: a case study in a fast-food network

O presente artigo aborda o mercado de delivery aplicado a redes de restaurante fast food no Brasil. Este modelo de alimentação tem apresentado crescimento exponencial nos últimos anos e estudar seu desenvolvimento se mostra de grande relevância para compreender suas tendências. O objetivo desta investigação foi analisar em que medida as vendas no balcão de um restaurante são canibalizadas pela inauguração de seu canal de delivery. Por meio de pesquisa exploratória de natureza quantitativa, realizou-se um estudo longitudinal entre os anos de 2018 e 2019 em uma consagrada empresa do setor, visando identificar como as vendas dos restaurantes variaram no período, comparando a adoção ou não da opção de delivery. Os resultados da pesquisa apontam para a importância deste canal para o desempenho das lojas, apesar de implicar pequena queda na taxa de vendas presenciais no balcão

Sexto ciclo de seleção recorrente fenotípica visando resistência à mancha-angular no feijoeiro.

Neste trabalho são apresentados os resultados obtidos na avaliação de progênies do sexto ciclo de seleção do referido programa