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The bidirectional steerability between different-size subsystems is discussed for a single parameter accelerated qubit-qutrit system. The decoherence due to the mixing and acceleration parameters is investigated, where for the total system and the qutrit, it increases as the mixing parameter increases, while it decreases for the qubit. The non-classical correlations are quantified by using the local quantum uncertainty, where it increases at large values of the acceleration parameter. The possibility that each subsystem steers each other is studied, where the behavior of the steering inequality predicts that the qubit has a large ability to steer the qutrit. The degree of steerability decays gradually when the qubit is accelerated. However, it decays suddenly when the qutrit or both subsystems are accelerated. The degree of steerability is shown for the qutrit/qubit vanishes at small/large values of the acceleration. The difference between the degrees of steerability depends on the initial state settings and the size of the accelerated subsystem.

Purpose The purpose of this study is to assess Water Users Associations (WUAs) technically, financially and administratively as being partially responsible for spate irrigation system management in Gash Delta Agricultural Corporation in Sudan.Methodology WUAs were assessed using questionnaire, direct observation and focus group discussion. Accordingly, WUAs were categorized into very poor, poor, average, good and very good. FindingsThe results indicate that technically and financially, WUAs in Gash Delta Agricultural Corporation are poor. Administratively, WUAs classified as average. The results also indicated that WUAs located in the upper spate system perform better than that located in the middle system. Originality/valueThe study was based on an innovative idea of giving stakeholders part in development of the assessment criteria as it is the first study assessing WUAs in Gash spate irrigation systems in Sudan.