Flow dynamics and sediment transport in a river bend have recently been studied using experimental and numerical investigations. A three-dimensional numerical modeling model named NaysCUBE was used in this study to describe the flow pattern and process of sediment transport in a sharp river bend as a complement to the prior work of the physical hydraulic model. The model uses the RANS equation to simulate flow where a fully complex 3D flow is governed. Despite the limitations of the RANS model, NaysCUBE well reproduces the flow pattern and turbulence phenomena in a movable bed channel with sharp curvature. Compared with data from a prior experiment, the morphological adjustment is simulated sufficiently. The three-dimensional flow structures are useful for determining the appropriate countermeasures for local scouring and riverbank protection.

The Nature Lovers community, in Indonesia, have a unique habit of celebrating the conquest of the mountain peak by singing a National anthem of Indonesia Raya along with the raising of nation flag. Interestingly, many of them have a dream to attend a flag-raising ceremony in order to celebrate the independence day of the Republic of Indonesia on 17 August at the top of the mountain. By using the 'phenomenology-based ethnography' method among the Nature Lovers community in Malang, this study seeks to answer about how these young people construct a discourse on environmental movements in their climbing activities and how they construct nationalism through their climbing rites. Analysis of the study used the concepts of Ecosophy from Arne Naess and Nationalism from Benedict Anderson. Through these two conceptual frames, the results of the study show that there is a close connection between mountain climbing and ecosophy discourse with nationalism, both of which have similar philosophical values in search of the self through natures.  Climbing is the effort of young people to get closer to nature and the process of finding themselves through the conquest of the ego during the journey to further strengthen the value of ecosophy or individual connection to nature. While patriotic celebrations at the top of the mountain are manifestations of nationalism rooted in the 'deep ecology movement' which is constructed by the 'imagined community' based on the solidarity of the climbers who have the same souls in nature. It can be said that the connection between ecosophy and nationalism is represented by the romanticism of the mountain climbing.