Judul: Deliniasi Wilayah Pioritas Penangan Rawan Kekeringan Di Lahan Pertanian (Studi Kasus: Sulawesi Selatan)
Abstrak: Drought in the agricultural land might be happened because of the late wet season, it’s cause inappropriate cropping pattern. Delineation of vulnerability drought areas must be done to anticipate crop failure areas. Drought vulnerability areas analize by three different aspects: climatological, hydrological and agronomical. Each aspects has role in the water availability for agriculture land. Approachment of climatological aspect, drought vulnerability areas showed by the sensitivity level of rainfall towards sea surface temperature (SST) anomalies in the Nino-3.4 region. The rainfall is divided in three period: wet season (MH) at November-February, first dry season (MK-1) at March-June and second dry season (MK-2) at July-October. The correlation between rainfall anpmalies and SST anomalies specify three different areas: high sensitive areas, low sensitive areas and non-significant areas. Significant areas is the regions where rainfall has correlation toward sea surface temperature anomaly where the regression produce P-value ≤ 0.05. Approachment of hydrological aspect, drought vulnerability areas determined by the density of stream pattern. In agronomy aspect, drought areas is determined from the type of agricultural land use. The integration of these three aspects result distribution of drought level areas in agriculture field, specifically rice-field. Results of the climatological aspect analysis shows that the drought areas more often in the west and south Sulawesi Selatan. While on the agronomy aspect, drought areas are dominated by rainfed lands and moor lands that spreads all over province.
Keyword: 

Judul: Penentuan indeks kekeringan agro-hidrologi untuk analisis risiko kekeringan dan mitigasinya (Studi Kasus DAS Kariango Sulawesi Selatan).
Abstrak: Agro-Hydrological drought can be interpreted as a shortage of surface water and groundwater supplying and insufficient for the plants and society needs a certain period. So far there have been no study assessing the agro-hidrology drought index. This study develops a Drought Hazard Index (DHI) as an indicator of Agro-Hydrological drought. The model developed from a combination of dry season rainfall, ground water depth, distance of water sources, soil texture and Water Supply Vegetation Index (WSVI) using remote sensing and GIS methods. Further analysis was caeried out to develop vulnerability and risk of drought which gave an overview of areas that need to be formulated for drought mitigation in the Kariango watershed. Agro-hidrologi Drought Hazard Index was DHI = (0.33CH) + (0.27KAT) + (0.20SA) + (0.13T) + (0.06WSVI) with model validation results showed high similarity drought in the field. The results of the analysis of vulnerability describes 25 % of villages are classified vulnerable. In the drought risk analysis shows the highest class are 19.52 % and 40.98 % are the dominant from paddy fields So that the mitigation efforts created are made together in the form of regulation and capacity building with reference to the combination of risk parameters included hazard risk and vulnerability.
Keyword: 

Judul: Grup dan Homomorfisma Grup pada Rubik Revenge
Abstrak: Rubik cube is a kind of puzzle game. A player must arrange rubik sides, which have been disordered, back to the position where every side has the same colour. This paper does not focus on the settlement solution, but instead on proving the existence of a group homomorphism between rubik movement group and S96 symmetric permutation group in rubik revenge. Firstly, it has been proved that rubik movement set is a group. Then, it also has been proved that the M set, which contains numeric labels of 1 until 96 in cubinos sides, is S96 symmetric permutation group.
Keyword: