Amazon cities and climate change

Manaus, due to the growth process it has undergone in recent decades, is among the cities with a high level of environmental vulnerability. According to the IPCC 6th Climate Change Report, the impacts of climate change will hit hardest the poor populations with limited adaptive capacity. This article shows the IPCC\u27s warnings about the risks of global warming, the great inequalities in the distribution of Amazonian populations, and the seriousness of the increase in deforestation and greenhouse gas emissions that compromise the lives not only of the region\u27s inhabitants, but of the planet as a whole. Moreover, it emphasizes the need for urgent solutions in order to contain the degradation process of the Amazon rainforest, actions that include defending the Amazonian biome and the objective and efficient confrontation of the problems of pollutant emissions, through energy efficiency practices

Algoritmo como ferramenta de apoio à decisão para avaliação de sustentabilidade na introdução de novas tecnologias agrícolas.

Resumo: A avaliação dos impactos das tecnologias agrícolas pode ser uma aliada do processo de decisão. Este trabalho apresenta uma metodologia para a avaliação dos impactos de inovações tecnológicas com adequações para a avaliação integrada das tecnologias agrícolas e suas aplicações, fornecendo informações organizadas de acordo com critérios e indicadores nas diversas dimensões onde os impactos da liberação ou utilização da tecnologia agrícola podem ser percebidos. O método consiste de um sistema que permite a análise do cenário no qual a tecnologia será introduzida, a partir da geração do índice de significância e a avaliação do desempenho da inovação, pela análise dos indicadores de impactos que irão compor o índice de magnitude. Este sistema conta com uma ferramenta de apoio, o software "Inovatec-AGRO", com informações apresentadas como um norteador para permitir uma avaliação instruída e embasada. Abstract: Agricultural technology impact assessment may be a helpful tool in the decision-making process. The present work suggests a method to evaluate the impact of technological innovation, with adequacy to assess agricultural technology providing information organized according to criteria and indicators in several areas where the innovation can be perceived, focusing the complexity of the innovation under investigation. The method consists of a system that allows the analysis of the innovation range starting from the generation of the significance index, and the assessment of the innovation performance through the analysis of the performance indicators which will compose the magnitude index. This system has a support tool, the software ?Inovatec-Agro?, with information shown as a guide to allow a well-informed and a well-based evaluation

Von Bezold assimilation effect reverses in stereoscopic conditions

Lightness contrast and lightness assimilation are opposite phenomena: in contrast, grey targets appear darker when bordering bright surfaces (inducers) rather than dark ones; in assimilation, the opposite occurs. The question is: which visual process favours the occurrence of one phenomenon over the other? Researchers provided three answers to this question. The first asserts that both phenomena are caused by peripheral processes; the second attributes their occurrence to central processes; and the third claims that contrast involves central processes, whilst assimilation involves peripheral ones. To test these hypotheses, an experiment on an IT system equipped with goggles for stereo vision was run. Observers were asked to evaluate the lightness of a grey target, and two variables were systematically manipulated: (i) the apparent distance of the inducers; and (ii) brightness of the inducers. The retinal stimulation was kept constant throughout, so that the peripheral processes remained the same. The results show that the lightness of the target depends on both variables. As the retinal stimulation was kept constant, we conclude that central mechanisms are involved in both lightness contrast and lightness assimilation

Sujeciones físicas y ética. ¿Binomio obligado?

-

Estévia.

Viabilidade socioeconômica do desenvolvimento agroindustrial da estévia; Botânica; Aspectos bioquímicos e organolépticos dos princípios ativos; Produção de sementes e mudas; Nutrição e adubação; Controle de plantas daninhas; Ocorrência de doenças e pragas; Irrigação; Colheita, secagem e armazenamento das folhas; Comercialização das folhas.bitstream/item/103385/1/SP5-2004.pd

Ética de la comunicación en las relaciones sanitarias, ¿derecho o privilegio?

-

Empirical evidence for unique hues?

Red, green, blue, yellow, and white have been distinguished from other hues as unique. We present results from two experiments that undermine existing behavioral evidence to separate the unique hues from other colors. In Experiment 1 we used hue scaling, which has often been used to support the existence of unique hues, but has never been attempted with a set of non-unique primaries. Subjects were assigned to one of two experimental conditions. In the "unique" condition, they rated the proportions of red, yellow, blue, and green that they perceived in each of a series of test stimuli. In the "intermediate" condition, they rated the proportions of teal, purple, orange, and lime. We found, surprisingly, that results from the two conditions were largely equivalent. In Experiment 2, we investigated the effect of instruction on subjects' settings of unique hues. We found that altering the color terms given in the instructions to include intermediate hues led to significant shifts in the hue that subjects identified as unique. The results of both experiments question subjects' abilities to identify certain hues as unique