A symmetric quantum calculus

We introduce the $\alpha,\beta$-symmetric difference derivative and the $\alpha,\beta$-symmetric N\"orlund sum. The associated symmetric quantum calculus is developed, which can be seen as a generalization of the forward and backward $h$-calculus.Comment: Submitted 26/Sept/2011; accepted in revised form 28/Dec/2011; to Proceedings of International Conference on Differential & Difference Equations and Applications, in honour of Professor Ravi P. Agarwal, to be published by Springer in the series Proceedings in Mathematics (PROM

Resíduos de cultura e indústria.

Utilizacao das palhadas na alimentacao. Tratamento quimico das palhadas. Uso de soda caustica. Uso de hidroxido de calcio. Uso de Amonia Anidra(gasosa). Uso de Amonia liquida. Uso da ureia. Composicao Quimica e valor Nutritivo de Restos de cultura

Características do herbicida Foramsulfuron lodosulfuron-Methyl-Sodium na cultura do milho.

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Enterprise Architecture as a Tool for Digital Transformation

Enterprise Architecture (EA) is the holistic expression for the main strategies of an enterprise in terms of business, applications and technologies, and the impact they have on its processes and functions. Currently, the CEOs of most businesses are investigating what opportunities are afforded by digitalization. However, despite the benefits of EA, and its possible role in digital transformation, there is a gap in the research regarding how to take advantage of EA in digital transformation. This article explores the concepts of EA and digital transformation based on a set of publications we selected from the area of IS/IT, and addresses some contributions to a methodology that promotes EA planning as a tool for digital transformation. As such, we refer to the dimensions, the approach, and the two phases of development which will contribute to placing EA as a tool for solving the problems of digital transformation initiatives