Relações hipsométricas para plantios adensados de castanheira-do-brasil (Bertholletia excelsa) na Amazônia Central.

Neste trabalho, foram ajustadas 23 equações matemáticas com o objetivo de selecionar a que melhor descreva a relação hipsométrica em plantios adensados de castanheira

Secagem de lenha de Eucalyptus dunnii ao ar livre para energia.

Resumo

Composição e abundância de peixes da interface entre as águas abertas e bancos de macrófitas e sua dinâmica nos períodos de crepúsculos matutino e vespertino, no lago Catalão, Amazonas, Brasil (Composition and abundance of fishes in the interface between open water and macrophyte banks, and the dynamics of this interface during morning and evening twilight, in lake Catalao, Amazonas, Brazil)

This work studied the composition and abundance of the fishes that move between macrophyte banks and open water during the morning twilight (CM) and afternoon twilight (CV). The collections were made using gillnets, along banks of Paspalum repens, at Catalão lake, in Amazonas, Brazil. A total of 222 individuals and 37 species were collected. Of these, 130 individuals were collected during the CM and 92 during the CV; 80 individuals were leaving during the CM and 40 individuals were leaving during the CV. Auchenipterus nuchalis, Pellona castelnaeana, Triportheus angulatus and T. albus were the most common and concentrated species collected in the CM and Pimelodus blochii was the most common species collected in the CV

Perspectives of Liriomyza biological control in Brazil.

In this work the results of a ten - year research on Liriomyza parasitoids in Brazil are reported

Internal devaluation and economic inequality in Portugal: challenges to industrial relations in times of crisis and recovery

Internal devaluation policies imposed in southern European countries since 2010 have weakened labour market institutions and intensified wage inequality and the falling wage share. The debate in the wake of the financial and economic crisis raised concerns about slow wage growth and per- sistent economic inequality. This article attempts to shed light on this debate, scrutinising the case of Portugal in the period 2010–2017. Mapping the broad developments at the national level, the article examines four sectors, looking in particular at the impact of minimum wages and collective bargaining on wage trends vis-a`-vis wage inequality and wage share trajectories. We conclude that both minimum wage increases and the slight recovery of collective bargaining had a positive effect on wage outcomes and were important in reducing wage inequality. The extent of this reduction was limited, however, by uneven sectoral recovery dynamics and the persistent effects of pre- carious work, combined with critical liberalisation reforms.info:eu-repo/semantics/acceptedVersio

Avaliação do carvão produzido a partir de resíduos da produção de sementes de brachiária.

EVINCI. Resumo

Persistência de dois inseticidas ao parasitoide de moscas-dasfrutas, Diachasmimorpha longicaudata (Hymenoptera: Braconidae).

O presente trabalho objetivou avaliar a persistência de dois inseticidas utilizados para o controle de Ceratitis capitata, espinosade e etofenproxi, sobre adultos de Diachasmimorpha longicaudataSICONBIOL 2013

Biomass and energy yield of leguminous trees cultivated in Amazonas.

Biomassa e produtividade energética de leguminosas arbóreas cultivadas no Amazonas. As florestas energéticas representam alternativa à dependência do uso de combustíveis fósseis para a produção de energia. O bom desempenho dessas florestas deve considerar a seleção de espécies de rápido crescimento, alta produtividade em biomassa e rendimento energético. O objetivo foi investigar o crescimento e a produtividade energética de Acacia auriculiformis e Acacia mangium em plantios florestais de curta rotação no Amazonas

Optimization of filament antennas using the Gauss-Newton method

The project of the Yagi-Uda antenna was optimized using the Gauss-Newton method. The optimization consisted of specifying value interval for directivity, front-to-back ratio and beamwidth and, starting from a pre-defined initial model, the best values for the length and spacing of the elements were determined. For the direct modeling, the method of moments on the integral Pocklington equation was used, which consisted of obtaining the values of directivity, front-to-back ratio and beamwidth from the length and spacing between known elements. The procedure was applied to the synthesis of Yagi-Uda antennas with five and six elements and the results were found to be as good as those obtained in the literature using other optimization methods

Humanoid realistic simulator: the servomotor joint modeling

This paper presents a humanoid servomotor model that can be used in simulations. Once simulation is a tool that reduces the software production time, it was developed a realistic simulator that own the humanoid features. Based on a real platform, the simulator is validated when compared with the reality