Dinamika Perberasan di Sulawesi Tenggara

The research aimed to know dynamics of rice related to rice system in South East Sulawesiwas done in September to Oktober 2004 in Kendari regency (Uepai, Amonggedo,Pondidaha and Abuki district). This research used survey methode involved 40 responden.The data used secundary data having the caracter of time series and primary data. Theresulth showed that wet paddy production was very fluctuantive. Their productivity wasrelated stable at 3,5 – 3,8 t/ha. Dry land paddy was wide enough used by farmer especialyin area that had poor paddy field, but wide area and its production had overtime trendwhile production increased. That productivity was still lower than national productivity of2,52 t/ha. Although main production more increase in the latest of 10 years, but thegovernment represented by Bulog still brought rice from out side South East Sulawesiespecially from South Sulawesi. Rice farming system was showed R/C > 1 value. Than,exchange value of benefict on cost, the use of cost was still dominated by labour. Thebenefict used for labour was 29 %. Rice farming system contributed around 75 % of totalhousehould income, besides that, farmer also obtained income from the other farmingsystem, livestock and off-farm

Developing and Using Multimedia Effectively for Cirebonese Language Learning

Lab Learning on Electronics Industry is a must course. This is necessary for students so they have good skills. Lab Learning need practice equipment that enough to fit the quantities of students. But in fact the quantities of material and practice equipment are not being sufficient. In addition, there is no learning media that can support the courses. This study aims to develop lab learning media with technology based on game with android-base that can help the students to understand the lab course everywhere, all the time. This study using Research and Development Method (RnD) with Model of Multimedia Development Life Cycle (MDLC). This study is done through six stage that is: 1. Concept; 2) Design; 3) Collection of material; 4) Assembly; 5) Testing; and 6) Distribution. The evaluation process feasibility learning media done by granting the survey to Media Experts, Lecture experts, and respondents trial use. Based on the assessment field test by students for Industrial Electronics they can get 88.27% counted as very good. Android-Based Elin Game as Learning Media in Industrial Electronics is very reasonable and effective for teaching.     Keywords: Game, Android, Learning Media, Industrial Electronics, Multimedia Development Life Cycle (MDLC)

Nanotechnology: Review on Emerging Techniques in Remediating Water and Soil Pollutions

Environmental Pollution is becoming a global challenge in both developing and the developed countries, pollutants discharge from oil and gas industries and or agricultural practices continue effecting the health of human and other animal in an ecosystem in one way or the other. This necessitated the development of a techniques to clean up of the polluted environment. Remediation of pollutants relies mainly on using varioustechniques like physical, chemical and or biological methods for the removal of contaminants from different environmental media be it soil, water, and or air. These techniques have their own limitations as the toxicity of the degrading agents, time consuming and the fate of the environment after remediation matters a lot. Therefore, nanotechnology is gaining interest in remediating pollutions as nanoparticles are relatively cost effective, sensitive and selective and can be used as sensors to monitor toxins, organic contaminants and heavy metals in land, water and or air. The enhanced properties and effectiveness of nanotechnology-based materials makes them suitable for nano remediation. This review provides an overview of the nanomaterials: Organic based nanomaterials (Dendrimers), inorganic (TiO2, nZVI), carbon-based (Carbon nanotubes, (CNTs)), and composite-based materials) used in environmental remediation. These nanomaterials were reported to remediate different contaminants in theenvironment such as heavy metals, pathogens, pesticides, dyes, chlorinated organic compounds, and polycyclic aromatic hydrocarbons. Keywords: Nanotechnology, nanoparticles, Nano remediation, pollutions and environments

Properties of Polyurethane Foam/Coconut Coir Fiber as a Core Material and as a Sandwich Composites Component

This research focuses on the fabrication and characterization of the sandwich composites panel using glass fiber composite skin and polyurethane foam reinforced coconut coir fiber core. The main objectives are to characterize the physical and mechanical properties and to elucidate the effect of coconut coir fibers in polyurethane foam cores and sandwich composites panel. Coconut coir fibers were used as reinforcement in polyurethane foams in which later were applied as the core in sandwich composites ranged from 5 wt% to 20 wt%. The physical and mechanical properties found to be significant at 5 wt% coconut coir fiber in polyurethane foam cores as well as in sandwich composites. It was found that composites properties serve better in sandwich composites construction

Pendekatan Konstruktif ASEAN – Myanmar : Sorotan Kajian Lepas

: Myanmar (Burma) as a member of the Association of Southeast Asian Nations (ASEAN) became the centre of regional attention when the United States (US) and the European Union (EU) imposed economic sanctions on the country. Myanmar\u27s membership is said to be hampering image and credibility of ASEAN. In addition, the Rohingya\u27s human rights issue has also affected Myanmar\u27s relations with regional Islamic states. However, ASEAN accepts Myanmar\u27s membership hoping its political system will be more social oriented and more democratic. In this light, this article poses a question. Has ASEAN\u27s constructive approach successfully democratized Myanmar? ASEAN utilizes the constructive approach towards Myanmar rather than isolating it in order to pave way for Myanmar\u27s democratization. This study employs library research and secondary data from other sources. The literature review shows that even though Myanmar\u27s political system is yet to be fully democratized, ASEAN\u27s constructive approach has indeed brought Myanmar closer to be more democratic compared to its more socialist system earlier on. The election and the release of Aung San Suu Kyi, the chairperson of the National League for Democracy (NLD) and main opposition leader in Myanmar in 2010, are the indicators of this progress. It is with the hope that this literature review will contribute to the accumulation of knowledge in the field of democracy research, democratization, and the role of ASEAN in the discipline of International Relations

Regional validation of retracked sea levels from SARAL/Altika over the South China sea and adjacent seas

This paper focuses on assessing the quality of sea level anomaly (SLA) data from the new generation of Ka-band SARAL/AltiKa satellite altimetry over the continental shelf of the South China Sea. The region consists of peninsulas, shallow seas, and small islands that produce complicated altimetric waveform patterns. The improved-accuracy of SLAs data from the MLE4, Ice1 and Ice2 retrackers which are provided in the AVISO-Sensor Geophysical Data Records (SGDR) were optimized in this study. The quality of retracked SLAs is assessed by making comparison with tide gauge data from six stations. In general, the percentage of data availability of Ice-1 retracker is superior ( > 68%) to those of MLE- 4 and Ice-2 retrackers. The improvement of percentage (IMP) also shows that Ice-1 retracker improves the standard deviation > 12% better than those of Ice-2 retracker. Over complex areas of Lubang and Ko Taphao Noi, the temporal correlation of Ice-1 retracker is superior (r > 0.80) to those of MLE4 and Ice-2 retrackers (r 5.8) and lower RMS error ( < 34 cm) than those of Ice-1 retracker. It can be concluded that the Ice-1 and Ice-2 retrackers were superior for the coastal region of Maritime Continent

Comparison of Calculated Percentage Depth Doses at Extended Source-to-Surface Distance for 6 MV And 15 MV Photon Beam of a Linear Accelerator

Background: Research findings from percentage depth dose (PDD) are crucial in evaluating patient doses received in radiation therapy. Objective: To compare calculated percentage depth doses at an&nbsp;extended&nbsp;source-to-surface distance (SSD) for 6 MV and 15 MV photon beams of a linear accelerator. Methodology: Measured PDD values of the&nbsp;100 cm&nbsp;source to surface distance (SSD) and calculated values at extended SSDs for 6 MV and 15 MV photon beams of an Elekta NHA SLi 1998 linear accelerator were analyzed. The PDD data was collected by placing ionization chamber inside water phantom for depths ranging from z = 0 - 30 cm in a water phantom and using a square field sizes of 10 x 10 cm2. Photon energies of 6 MV and 15 MV were used for the measurement, with both gantry and collimator angles fixed at zero degree. PDD was calculated at extended SSD of 110 cm, 120 cm, 130 cm, and 140 cm from the measured PDD values of 100 cm SSD for both 6 MV and 15 MV photon energies using Mayneord factor. Results:&nbsp;&nbsp;The depth dose maximum (Dmax) for field size 10 x 10 cm2&nbsp;&nbsp;for 6 MV and 15 MV photon energies were 1.62 cm and 2.65 cm, respectively and the PDD at 10 cm&nbsp;&nbsp;(D10) were 67.9% and 75.9%, respectively. The mean deviation of the calculated PDD at extended&nbsp;SSDs&nbsp;was found to be between 0.2% and 1%. Conclusion: The calculated PDD values at extended SSDs are considered suitable for clinical use at all clinically relevant depths and field sizes. &nbsp

Web-based virtual learning environment (EmoViLe) with emotive interface feature

This study attempts to obtain the user requirements for the EmoViLe during the data collection and to identify the user requirement for the EmoViLE. This VLE will be benefited to the student by improving the user experience and increasing their engagement when using the VLE, and lecturer in helping them to understand their student better and to come out with a better future plan for their learning assessment. The methodology in doing this study are Phase 1 which involved the initial study on the previous work, Phase 2 is the data collection on the user requirement, Phase 3 which involves the design process of the VLE, Phase 4 is the development phase of the VLE and Phase 5 is the testing on the prototype of the VLE. The expected outcome is a prototype of the VLE with the emotive interface feature that can contribute for the improvement and betterment on teaching and learning process between students and lecturer.Keywords: emotions; virtual learning environment; web-based teaching; web-based learning dashboard; Kansei engineering

Machinability of cobalt-based and cobalt chromium molybdenum alloys - a review

Cobalt chrome molybdenum alloy is considered as one of the advanced materials which is widely gaining popularity in various engineering and medical applications. However, it is categorized as difficult to machine material due to its unique combination of properties which include high strength, toughness, wear resistance and low thermal conductivity. These properties tend to hinder the machinability of this alloy which results in rapid tool wear and shorter tool life. This paper presents a general review of the materials’ characteristics and properties together with their machinability assessment under various machining conditions. The trend of machining and future researches on cobalt-based and cobalt chromium molybdenum alloys are also discussed adequately

Antiangiogenesis and antioxidant activity of ethanol extracts of Pithecellobium jiringa

BACKGROUND: Angiogenesis plays a critical role in embryonic development and various physiological processes. However, excessive angiogenesis is associated with several pathological conditions including cancer. Pithecellobium jiringa (Jack) Prain is a traditional medicinal plant from the family Leguminosae. It is native to the Southeast Asia, where it has been used traditionally for treatment of various ailments such as hypertension and diabetes. The present work is aimed to study antioxidant and antiangiogenesis activities of P. jiringa ethanol extracts. METHODS: P. jiringa fruit rinds were extracted with ethanol and 50% ethanol. The antioxidant property was analysed using, 1,1-diphenyl-2-picryl-hydrazyl free radical scavenging assay. Phytochemical analysis was performed using thin layer chromatography and colorimetric methods. Then, cell growth inhibition was studied against a panel of human cell lines by MTT test. In vitro inhibition of angiogenesis was studied by the following assays: isolated rat aortic rings cell viability, colony formation, endothelial cell migration, endothelial tube formation on matrigel, and expression of vascular endothelial growth factor by endothelial cells. In vivo antiangiogenesis effect was studied by utilising fertilised chick embryos assay. The results were statistically analysed by analysis of variance. RESULTS: Ethanolic and 50% hydro-ethanolic extracts showed relatively high concentration of total phenolics associated with potent antioxidant activity. The rat aortic rings study conducted showed potent inhibition of the microvessels outgrowth with IC50s 5.27 ± 0.81 μg/ml (ethanolic) and 4.45 ± 0.63 μg/ml (50% hydro-ethanolic). Both extracts arrested the growth of human endothelial cells via down-regulation of VEGF expression, leading to inhibition of other angiogenesis cascades including migration of endothelial cells, and formation of capillary network on matrigel matrix. The extracts also inhibited the neovascularisation of chick embryo chorioallantoic membrane. CONCLUSIONS: P. jiringa extracts inhibit angiogenesis by blocking the VEGF expression thus inhibiting endothelial cells proliferation, migration and differentiation most likely due to presence of the antioxidant phenolics.Nahdzatul Syima Muslim, Zeyad D Nassar, Abdalrahim FA Aisha, Armaghan Shafaei, Norshirin Idris, AminMalikShahAbdul Majid and Zhari Ismai