No abstract

High frequency of calli was obtained from leaf and spadix segments of Anthurium andraeanum L. when cultured on N6 medium containing 2.5 mg/l BAP and 0.2 mg/l 2,4-D in dark condition. The calli were maintained in dark condition on the same medium containing same hormonal supplements by sub-culturing up to three months but no shoot formation occurred during this period. Leaf and spadix segments derived calli were then tried for multiple shoot regeneration by culturing onto MS fortified with BAP and Kn singly or in combination with NAA in light condition. Best response towards multiple shoot regeneration was observed from both leaf and spadix segments derived calli on MS  fortified with 1.0 mg/l BAP. In this combination an average of 18 shoot buds  regenerated from leaf segment derived callus while 14 shoot buds  regenerated from spadix segment derived callus. The number of shoot buds increased three to four-folds after subculturing in the same medium. Regenerated multiple shoots were excised and cultured onto half strength of MS with different concentrations of IBA and IAA for root induction. Best root development was obtained in half strength MS containing 1.0 mg/l IBA. About 85 per cent of the regenerated plantlets survived in natural conditions. Key words:  Clonal propagation, In vitro, Anthurium andraeanum D.O.I. 10.3329/ptcb.v19i1.4961 Plant Tissue Cult. & Biotech. 19(1): 61-69, 2009 (June)

Hydroxyapatite-supported Ni-Ce-Cu catalysts were synthesised and tested to study their potential for use in the steam reforming of glycerol to produce hydrogen. The catalysts were prepared by the deposition-precipitation method with variable nickel, cerium, and copper loadings. The performance of the catalysts was evaluated in terms of hydrogen yield at 600°C in a tubular fixed-bed microreactor. All catalysts were characterised by the BET surface area, XRD, TPR, TEM, and FE-SEM techniques. The reaction time was 240 min in a fixed-bed reactor at 600°C and atmospheric pressure with a water-to-glycerol feed molar ratio of 8: 1. It was found that the Ni-Ce-Cu (3 mass %-7.5 mass %-7.5 mass %) hydroxyapatite-supported catalyst afforded the highest hydrogen yield (57.5 %), with a glycerol conversion rate of 97.3 %. The results indicate that Ni/Ce/Cu/hydroxyapatite has great potential as a catalyst for hydrogen production by steam reforming of glycerol.

Prevalensi diabetes melitus berdasarkan hasil riset kesehatan dasar (Riskesdas, 2013) tertinggi di Indonesia terdapat di provinsi DI Yogyakarta. Diabetes melitus merupakan penyakit kronis yang membutuhkan pengobatan jangka panjang dan kompleks dimana salah satu penentu keberhasilan terapi bergantung pada kepatuhan penggunaan obat. Tujuan penelitian ini untuk mengetahui gambaran karakteristik pasien meliputi jenis kelamin, usia, tingkat pendidikan, durasi penyakit, komorbid, dan penggunaan ADO terhadap kepatuhan pasien diabetes melitus tipe 2. Penelitian ini menggunakan metode observasional dengan rancangan analisis potong lintang yang dilakukan secara retrospektif terhadap 123 pasien diabetes melitus tipe 2 rawat jalan di puskesmas daerah Yogyakarta pada bulan Agustus-September tahun 2015. Metode pengambilan sampel menggunakan teknik accidental sampling. Instrumen penelitian berupa lembar pengambilan data dan kuesioner Morisky Medication Adherence MMAS-8. Data dianalisis menggunakan Chi-Square. Hasil penelitian menunjukkan bahwa secara keseluruhan tingkat kepatuhan pasien diabetes melitus tipe 2 berada pada tingkat kepatuhan rendah. Hubungan antara pengaruh karakteristik pasien: jenis kelamin (p=0,275), usia (p=0,473), tingkat pendidikan (p=0,157), durasi penyakit (p=0,097), jumlah komorbid (p=0,79), dan ADO (p=0,401) terhadap tingkat kepatuhan tidak signifikan (p>0,05). Kata kunci: Diabetes melitus tipe 2, karakteristik pasien, kepatuhan