Judul: Decision Support System of Agricultural Craps and  Application of Geagraphic Information System for Site  Suitability Classification
Abstrak: Assessing the suitability of an area for Ag,rkcultural craps requirt: a considerable effort in terms of information collection that presents both opportunities and limitations to decision-makers. A DSS was dcveluped fur specified crops based an 9 criteria of climatic requirements (average annual precipitation and annual mean temperature) and the quality arid characteristics of land (slope, drainage, soil texture, soil depth, sail CEC, sail base saturation, and sail pH)
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Judul: Spatial decision support system for identification of potential land for food production:
Abstrak: Competition and increasing needs in land utilization, either for agriculture land or for non-agriculture land claims thought in decision making to manage land resource utilization. Therefore the spatial data availability of land resources is one of needed basic information by planners for agriculture development. The planners need information about which area can be opened up for agriculture development, especially to extent agriculture land for paddy and maize. Further the spatial information can be used to analyze quantitatively of food production and food availability. Actually the current system provides tools for processing spatial data. But the system has limitation for integrating spatial information with decision maker’s preferences and expert knowledge into spatial based decision making process. This study was intended to develop a system prototype which integrates Geographic Information System (GIS) and Multi Criteria Decision Analysis (MCDA) to support spatial based decision making. The objective of this research was to develop a conceptual design and a prototype of a spatial decision support system for identification of potential land for food production particularly for paddy and maize. The system prototype was developed by following System Development Life Cycle procedures that was system analysis, system design, system construction, and system implementation.
Keyword: potential land, multi criteria decision analysis, food production, land suitability evaluation, food availability

Judul: Sintesis 6-Bromo-4-O-metilkoniferil Alkohol dan trans-Sinamat-nya sebagai Prekursor ke Analog Podofilotoksin
Abstrak: Podofilotoksin merupakan lignan utama dalam resin podofilin yang diekstraksi dari tumbuhan Podophyllum. Toksin ini memiliki aktivitas antivirus, antitumor, antijamur dan antikanker. Berbagai upaya menyintesis podofilotoksin secara kimia telah banyak dilaporkan. Eugenol yang memiliki kerangka fenilpropena dapat digunakan sebagai bahan awal untuk sintesis podofilotoksin berdasarkan keberadaan kerangka dimer fenilpropanoid. Penelitian ini bertujuan menyintesis prekursor untuk sintesis analog podofilotoksin, 6-bromo-4-O-metilkoniferil alkohol dan ester trans-sinamat-nya, dari bahan awal eugenol. Senyawa alkohol target berhasil disintesis dalam 3 tahap, yaitu brominasi, dehidrobrominasi-substitusi, dan hidrolisis, dengan rendemen keseluruhan 34% dari tribromida metileugenol. Sementara produk ester trans-sinamat belum dapat ditentukan rendemennya karena belum semua fraksi dapat dimurnikan sebagai akibat dari pandemi Covid-19. Isomerisasi asam trans-sinamat dan esterifikasi isomer-cis yang diperoleh dengan 6-bromo-4-O-koniferil alkohol serta penuntasan pemurnian ester trans-sinamat merupakan rencana pekerjaan selanjutnya.
Keyword: brominasi, eugenol, fenilpropanoid, podofilotoksin.