Judul: Analisis ergonomi pada penyiapan lahan sawah lebak menggunakan alat tradisional tajak di Kabupaten Banjar Kalimantan Selatan
Abstrak: Marshland field in South Kalimantan is one of potential new source of paddy field area. Regarding marginal characteristics of teh field however, there are some obstacles need to be overcame related to farm work activities, especially land preparation activity. Traditional local farmers in South Kalimantan conventionally do the field preparation by using a traditional tool named “tajak”. This typical traditional tool is very appropriate for land preparation in marshland field which is enabling to cultivate without raising the pirit (FeS2) layer. However, it is quite difficult, hard and dangerous to operate tajak, and it’s difficult to learn by a novis operator as well. Therefore, ergonomics study will be beneficial to develop more convenient, safe and effective tajak. This study focused in workload and human-tool suitability analyses. Workload analysis was conducted based on heart rate (HR) parameter,while human tool suitability analysis was conducted based on anthropometri and motion study. The result of workload analysis revealed that tajak operation is an “extremey hard” workload, whichs the avarage of IRHR is 2,14. The workload level of tajak operation is indicatively by workload intencity and swing elevation. Regarding the Total energy cost per weight (TEC’) and hours of work (JOK) , the tajak operation consumes 5,36 kcal/kg.hour and need 61.07 hour/ha in average. Anthropometri and motion study analysed revealed that the dimentional suitability of tajak tool is strongly related to shoulders and waist heightly, arms length, and hands grips diameter. Based on the result of tajak anthropometri and motion analyses, for better design of tajak’s handle was recommended 75.70 cm
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Judul: Ergonomic study on evacuation process of rice yields in  terraced fields using time and workload study approaches
Abstrak: Tingkat kesulitan dan produktivitas dalam melakukan pekerjaan evakuasi hasil panen di lahan terasering ditentukan oleh kondisi lahan. Jika kelas kemiringan lerengnya semakin curam, maka lebar teras yang bisa dibuat akan semakin sempit, alat evakuasi hasil panen padi pada lahan datar menjadi sulit beroperasi di lahan terasering, petani di lahan terasering umumnya melakukan proses evakuasi hasil panen dengan cara dipanggul. Hal tersebut berimplikasi pada tingkat beban kerja yang sangat tinggi bahkan berisiko tinggi untuk terjadinya kecelakaan kerja yang dapat berakibat fatal karena karakteristik pekerjaan yang demikian itu. Oleh karena itu, perlu dilakukan studi terkait ergonomika pada proses evakuasi hasil panen di lahan terasering. Penelitian dilakukan di lahan terasering Desa Seda Kecamatan Mandirancan Kabupaten Kuningan Provinsi Jawa Barat yang terletak 700 meter di atas permukaan laut. Subjek penelitian sebanyak 4 orang dengan usia 57-64 tahun, subjek yang diteliti melewati 2 lintasan evakuasi dengan tingkat kemiringan yang berbeda. Tingkat kemiringan lintasan evakuasi sebesar 12 derajat (subjek A dan B) dan 10 derajat (subjek C dan D) yang diketahui menggunakan alat teodolit. Penelitian ini bertujuan mengetahui tingkat beban kerja, laju konsumsi energi dalam bekerja dan jumlah tenaga kerja ideal yang dibutuhkan pada proses evakuasi hasil panen padi di lahan terasering Desa Seda. Hasil penelitian ini membuktikan bahwa pekerjaan evakuasi hasil panen di lahan terasering yang dilakukan di lokasi studi ini secara umum masuk dalam kategori tingkat kejerihan sangat berat. Sedangkan dari aspek laju konsumsi energi, energi rata-rata yang dikonsumsi untuk evakuasi hasil panen di lahan terasering lokasi studi sebesar 3,65 kkal/menit. Selanjutnya, hasil analisis ergonomika berdasarkan pendekatan beban kerja dan studi waktu ini menunjukkan bahwa jumlah tenaga kerja seharusnya yang dibutuhkan untuk proses evakuasi hasil panen gabah sebanyak 60 kwintal GKP per hari dengan cara kerja dipanggul di lahan terasering Desa Seda sebanyak 5 orang per hari atau dengan kata lain, rata-rata kapasitas kerja evakuasi hasil panen untuk setiap pekerja adalah 12 kwintal/hari kerja., Level of difficulty and productivity in carried out work of evacuation crops on terraced fields determined by the condition of the land. If the slope class is steeper, then the width of the terrace that can be made will be narrower, rice harvest evacuation tool on flat fields becomes difficult to operate on terraced fields, farmers on terraced fields generally carried out the process of evacuation crops by carrying them on their shoulders. It has implications for very high level of workload and even high risk for work accidents that can be fatal because of the characteristics of such work. Therefore, it is necessary to conduct a study related to ergonomics in the process of evacuation crops on terraced field. The research was conducted on the terraced fields of Seda Village, Mandirancan District, Kuningan Regency, West Java Province located 700 meters above sea level. The research subjects were 4 people aged around 57-64 years, the subjects passed 2 evacuation routes with different levels of inclination. The slope of the evacuation routes is 10 degrees (subjects A and B) and 12 degrees (subjects C and D) known to use theodolite. This study aims to determine the level of workload, energy consumption at work
Keyword: beban kerja, ergonomika, evakuasi, padi, terasering

Judul: Sintesis dan Pencirian Kompleks Fe(III)-Kuersetin
Abstrak: Quercetin belongs to flavonols which is able to chelate metal ions. Quercetin may chelate metal ions at 3’,4’-catechol, 3- or 5-hydroxycromone sites. In this study, quercetin was complexed with Fe(III). The complex with Fe(III) ions from FeCl3·6H2O was more stable than the complex derived from Fe(NO3)3·9H2O. The quercetin was yellow in color and showed maximum wavelengths (λ􀭫􀭟􀭶) at 250 and 370 nm. The Fe(III)-quercetin complex from Fe(NO3)3·9H2O was yellowish green with 􀟣􀭫􀭟􀭶 at 280 and 420 nm, whereas that from FeCl3·6H2O was dark green with 􀟣􀭫􀭟􀭶 at 280 and 430 nm. The 􀟣􀭫􀭟􀭶 shift indicated that the complex was formed at 3-hydroxychromone site. The Fe(III)- quercetin complex was formed with 1:1 metal-ligand mole ratio based on atomic absorption spectrophotometry analysis and the X-ray diffractogram showed that the crystallinity of the complex was 37%.
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