Exact quantum cross sections for a three dimensional angle dependent model for three body reactions

Quantum mechanical reactive cross sections reported for three dimensional angle dependent model surfac

Utilização do fogo como agente de controle das cigarrinhas-das-pastagens em Brachiaria decumbens no Estado do Acre.

As cigarrinhas-das-pastagens vem causando sérios prejuízos às pastagens no Estado do Acre, em especial àquelas formadas com Brachiaria decumbens. Em todos os seus estágios de vida, especialmente os adultos e a ninfas, o inseto é sensível à ação do fogo.bitstream/item/145722/1/1129.pd

Levantamento e flutuação populacional de cigarrinhas-das-pastagens e seus inimigos naturais no Acre.

A utilização de gramíneas forrageiras em pastagens, tem sido a causa do aparecimento de áreas consideráveis apresentando sintomas de ataque das cigarrinhas-das-pastagens, principalmente quando a gramínea utilizada é a B. decumbens, reconhecidamente susceptível ao ataque da praga. Sendo assim, para que sejam elaborados programas de controle, necessário se faz conhecer a flutuação populacional da praga, bem como efetuar um levantamento de seus inimigos naturais, o que se constitui no objetivo deste estudo.bitstream/item/145764/1/1130.pd

Getting Back In: The \u3cem\u3ePlasencia\u3c/em\u3e Decision and the Permanent Resident Alien\u27s Right to Procedural Due Process

In Landon v. Plasencia, the United States Supreme Court reversed the Ninth Circuit Court of Appeals and held that a permanent resident alien returning to the United States from a brief visit abroad is not necessarily entitled to have the question of her admissibility determined at a deportation hearing. The Court has, however, clarified the standards to be applied in determining, on a case-by-case basis, what process is due. After tracing the development of relevant case law as it has affected the rights of the permanent resident alien, the author concludes that the practical effect of Plasencia actually may be to ensure the higher standard of treatment originally ordered by the Ninth Circuit

Clinical presentation and outcome of pediatric ANCA-associated glomerulonephritis

Background Antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis is a small- and medium-sized vasculitis classically seen in adult patients, with peak onset near the fifth to seventh decade of life. There is little data on ANCA-associated vasculitis in pediatric patients, and most studies have limited follow-up. Methods This is a retrospective chart review of 22 patients with ANCA-positive glomerulonephritis in a single institution from 1991 to 2013. Results Of the 22 patients, eight (36 %) required renal replacement therapy (RRT) at diagnosis; four of these patients recovered sufficient renal function to initially discontinue dialysis. Five patients (23 %) were treated with plasmapheresis at presentation. The median time from presentation until first clinical or serologic relapse was 1.7 ± 1.2 years. After a median follow-up of 5.8 years, just over half of our patients had chronic kidney disease (CKD) stages 1–3 (55 %). Seven (32 %) patients progressed to end-stage renal disease (ESRD) and eventually required kidney transplant. Conclusion ANCA-associated glomerulonephritis is a rare disorder in children. Presentation and outcomes vary significantly among patients. More research is required to follow these patients who are diagnosed in childhood to further characterize the long-term outcome of the disease

A Risk Management Perspective on Statistical Estimation and Generalized Variational Inference

Generalized variational inference (GVI) provides an optimization-theoretic framework for statistical estimation that encapsulates many traditional estimation procedures. The typical GVI problem is to compute a distribution of parameters that maximizes the expected payoff minus the divergence of the distribution from a specified prior. In this way, GVI enables likelihood-free estimation with the ability to control the influence of the prior by tuning the so-called learning rate. Recently, GVI was shown to outperform traditional Bayesian inference when the model and prior distribution are misspecified. In this paper, we introduce and analyze a new GVI formulation based on utility theory and risk management. Our formulation is to maximize the expected payoff while enforcing constraints on the maximizing distribution. We recover the original GVI distribution by choosing the feasible set to include a constraint on the divergence of the distribution from the prior. In doing so, we automatically determine the learning rate as the Lagrange multiplier for the constraint. In this setting, we are able to transform the infinite-dimensional estimation problem into a two-dimensional convex program. This reformulation further provides an analytic expression for the optimal density of parameters. In addition, we prove asymptotic consistency results for empirical approximations of our optimal distributions. Throughout, we draw connections between our estimation procedure and risk management. In fact, we demonstrate that our estimation procedure is equivalent to evaluating a risk measure. We test our procedure on an estimation problem with a misspecified model and prior distribution, and conclude with some extensions of our approach

Introdução de gramíneas visando resistência a cigarrinha-das-pastagens no Estado do Acre.

Devido a Brachiaria decumbens ser a gramínea de maior preferência para a implantação de pastagens nos últimos 10 anos no Estado do Acre, os problemas com ataques severos da cigarrinha-das-pastagens estão se intensificandonos últimos 3 anos. Isto evidencia a necessidade de que sejam encontradas outras opções de gramíneas resistentes e/ou tolerantes para a formação ou reforma de áreas de pastagens efetuando-se, desta forma, um controle integrado da praga.bitstream/item/144855/1/1128.pd