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Purpose: This paper aims to find the pattern of interaction of political actors in situations of tenurial conflict in the watershed through a review of cases of social conflicts of plantation villages around Siak watershed 2009-2014. Design/methodology/approach: In harmony with the Research Master Plan (RIP) of Riau University, the socio-political of Riau Malay society and the fundamental scientific pattern of Riau university, the development of the resources of area and waters and Malay culture, since 2001, the writer has conducted a study related to the issues of natural resources policy, especially oil palm in the era of regional autonomy and decentralization. This is in line with the umbrella of research developed by the University of Riau namely studying various aspects of natural resources (especially oil palm) and human resources of Watershed (DAS). The writer's review is; first, the dynamics of politics in relation to the issue of oil palm plantation policy in Riau. This study shows that there are many central policies when implemented at the local level including watersheds clashing with local interests such as forests and land ownership. Second, the writer has also reviewed the policy issues and problems of oil palm plantations in Riau watershed in 2000. This study shows there are many issues and problems formulated differently by different people. Findings: Mapping and strategy are examined through the study of political strategies on oil palm plantations and use them to answer the following two questions: what kind of political model which can be used to manage the watershed conflict since regional autonomy is implemented. Economic factors are influential in mapping and management strategies for the emergence of tenurial conflicts in the Siak River Rivershed 2009-2014. The tenurial conflict management model of Siak rivershed, which is considered relevant, is a conflict-based model of cooperation with a partnership pattern between local government, watershed civil society and plantation business actors. The change of agrarian structure is directed to the effort to open the space for the accesibility of society in decision-making. Originality/value: Some of these studies have not reached the tenurial conflicts in the watershed areas, especially Siak watershed. In fact, about 80 per cent of Riau province region consists of watershed. This becomes the originality and gap of this study with previous studies. This research was conducted further as an effort to synergize Riau's development policy with Riau University's research in harmony with RIP that was created and aimed to find the pattern of interaction of political actors in situations of tenurial conflict in Watershed through a review of cases of social conflicts of plantation around Siak watershed in 2009-2014.

The development of conductive polymer composites along with their advantages are rapidly growing to meet current demands in electronic applications. There are many types of matrix and filler that had been extensively researched in order to find the most suitable materials that can be utilized for electronic interconnect applications. Previous works carried out by researchers within the field revealed that by using melt blending techniques such as twin screw compounding and compression moulding can be used to develop conductive composite polymer such as from polypropylene (PP) incorporated with graphite as conductive filler. The conductivity of the composite can be measured using the 4-point probe technique. This short review aims to provide the latest insight in the area of electrically conductive polymer composites focused on the types of matrix and filler, processing and utilisation in electronic interconnect and other potential applications.

Study of recommendation parameters for injection moulding process was carried out with aid of Autodesk Moldflow Insight. Rice husk filled low-density polyethylene was used as the raw material. Standard dog- bone shape mould with ASTM were used throughout the simulation analysis. The investigations were carried out on fill analysis, fill + pack analysis and cool analysis on injection moulded dog-bone shape. From the simulation analysis, the recommended parameters of the injection moulding process for rice husk composites were determined.

Poly (ethylene-co-vinyl acetate) (PEVA) is a biocompatible copolymer, easily processed and designed for intricate biomedical products. However, its toughness; which is the combination of high flexibility and high strength is quite low to resist tearing during long term use in human biological system. In this study, the possibility to enhance the tensile toughness of the PEVA was studied. Several ratios of organically modified MMT and bentonite were used as hybrid nanofillers in the PEVA matrix to form hybrid nanocomposites. Both nanoclays were pre-dispersed and destabilized prior to melt compounding with the PEVA. Results indicated that the use of O-MMT and bentonite in a ratio of 4:1 brought the best increment in the tensile toughness of the PEVA. This could be related to the improved interactions between PEVA with the hybrid nanofillers.